Housing for a brake dust particle filter for a disc brake assembly, disc brake assembly and method of manufacturing a housing

Technical field

The invention relates to a housing for a brake dust particle filter, a brake dust particle filter having such a housing for a disc brake assembly, a corresponding disc brake assembly comprising a brake caliper and a brake disc. The invention further relates to a method for manufacturing a housing for a brake dust particle filter.

Background art

Disc brake assemblies having a brake caliper and a brake disc are known to the person skilled in the art and are used for both mobile and stationary applications. In mobile applications, the disc brake assemblies can be used, for example in cars, trucks, buses, motorcycles, mobility scooters, scooters, bicycles and rail vehicles. As for stationary applications, the disc brake assemblies can, for example, be used in wind energy plants.

Particle formation, in particular fine dust, during the operation of disc brake assemblies is also known. This fine dust can reach the environment or be collected in a housing surrounding a brake disc of the disc brake assembly. A brake dust particle filter can feature such a housing.

Corresponding housings are also known. They can comprise an interior space at least partially surrounded by housing walls, in which the brake disc can be disposed. The brake caliper can cover the interior space. In this case, the housing can be arranged sealingly on the brake caliper. A corresponding housing can be manufactured in a deep-drawing process or in a casting process.

A disc brake assembly for vehicles is known from DE 10 2016 108 793 A1 , in particular for motor vehicles, having a brake disc disposed rotatably on a vehicle's wheel. The disc brake assembly comprises a brake caliper which has brake pads that can be brought into contact with lateral surfaces of the brake disc, and a brake housing with filter insert substantially enclosing the brake disc, wherein the brake housing, which can enclose the brake disc on all sides with the exception of the parts of the brake disc enclosed by the brake caliper, can be arranged in a substantially sealing manner on substantially opposite surfaces of the brake caliper.

Disclosure of the invention

One object of the invention is to provide a housing for a brake dust particle filter, which can also be manufactured cost-effectively in small lots.

A further object is to provide a brake dust particle filter which reliably separates particles produced during the braking process from a fluid surrounding the brake disc.

A further object is to provide a disc brake assembly that emits fewer particles during operation.

A further object is to provide a method for manufacturing a housing of a disc brake assembly, which can also be manufactured cost-effectively in small lots.

The aforementioned object is solved according to one aspect of the invention, in that a folded sheet metal blank forms a plurality of housing walls of the housing.

Favorable embodiments and advantages of the invention will become apparent from the further claims, the description and the drawing.

The housing according to the invention can be used in particular for a disc brake assembly, in particular for brake systems for commercial vehicles. In this case, the housing is an element of a brake dust particle filter of the disc brake assembly.

In the following, a sheet metal blank is understood to be a sheet in an unbent or unfolded state which is used for manufacturing a sheet metal product by folding. In this case, the sheet metal blank may have sheet metal blank sections that form the housing walls. In addition, the sheet metal blank can feature folding regions between the sheet metal blank sections. The sheet metal blank is folded in the folding regions or bent by another suitable method, so that the sheet metal blank sections and, as a result, the corresponding housing walls feature a predetermined angle to each other. The shape of the sheet metal blank can simply be punched out or cut out or cast. In particular, when cutting out, no additional shaping tools are required to produce the sheet metal blanks. In a further step, the sheet metal blanks can form the housing in one or more folding steps. For example, semi-finished products such as round or square tubing can be used in the folding step. The sheet metal blanks can be easily manufactured for different housings. In addition, cost-efficient manufacturing is possible. This allows housings also to be produced in smaller quantities, for example for special designs or for customized small lots. As a result, housings can also be made available for low demands without having to make additional investment in tools for deep-drawing or punching processes.

Advantageously, the sheet metal blank can be used to create a housing that has a component geometry that is not bound to a tool for a deep drawing or punching process. By adapting the sheet metal blank section and/or the positions of the folding regions and/or the dimensions of the respective sheet metal blank sections, different variants of housings can be easily created.

In other words, the sheet metal blank in a non-folded initial state represents a net of the housing walls. Starting from this net, the housing walls can be created in their intended shape and position by simply folding them. Since the net can be produced very simply and cost-efficiently from a flat starting material, such as a sheet metal panel, by established processes such as laser cutting and/or water jet cutting, the housing according to the invention can be implemented very cost-efficiently for small lots.

Preferably, all of the housing walls of the housing are formed in one piece from the sheet metal blank, thus reducing the number of parts and therefore the costs.

At least one part of adjacent sheet metal blank sections after folding can be connected to each other in the folded state, in particular welded, in particular spot-welded. Because of this, the necessary stiffness of the housing is achieved since the area moment of inertia is increased due to the connection of the sheet metal blank sections. According to a favorable embodiment, the sheet metal blank can form a plurality of housing sections each having three housing walls. The housing sections may be disposed relative to each other to form a housing having a polygonal cross-section. The crosssection can cover an area of the brake disc. The housing sections can each feature, for example, a quadrangular cross-section, with outer radially extending edges running towards each other in the folded state, just like a triangle. The angle between the outer edges can depend on the number of housing sections forming the housing, and on the angle enclosed by the housing. The cross-section of the housing has an internal area not covered by a housing wall. As a result, when in use a hub of the brake disc can be disposed in this area. In the embodiments, the sheet metal blank can also form multiple housing sections with more than three housing walls.

According to a favorable embodiment, the three - or in embodiments more than three - housing walls of the housing sections can be disposed in U-shape. In this connection, first housing walls of the housing sections can form a front side of the housing. Second housing walls of the housing sections can form a rear side of the housing. Third housing walls of the housing sections can form a circumferential surface of the housing and connect the first and second housing walls. In this regard, the front side is disposed opposite the rear side. The front side and the rear side feature the polygonal crosssection. The circumferential surface is circumferentially disposed and can feature a width at least equal to the width of the brake disc. In embodiments, however, the width of the circumferential surface can also be smaller than the width (=thickness) of the brake disc; in this case, the housing can comprise at least one further folding, by means of which a housing cross-section varying in the radial direction is obtained. The brake disc can be disposed between the front side and the rear side. In this connection, the front side and/or the rear side can be disposed parallel to the friction surface of the brake disc, at least sectionwise. However, it is also possible for the front side and/or the rear side to extend at least sectionwise at an angle to the friction surface of the brake disc. Alternatively or additionally, the front side and/or the rear side can have a stepped course. The circumferential surface covers the circumference of the brake disc's portion disposed in the housing. The housing can fully or partially receive the brake disc. In this regard, the housing can feature a recess for inserting the brake disc into the interior space surrounded by the housing walls and which recess can be covered by the brake caliper when in use. Surrounding the brake disc completely by the housing allows the particles to be collected within the housing. As an alternative, the housing can cover only a portion of the brake disc.

In embodiments with housing sections featuring more than three housing walls, at least one housing wall (or housing leg in section) located at the edge can be folded axially in a direction facing the brake disc in a mounting arrangement to geometrically reduce the extension of the interior region for receiving the brake disc. In other words, the width of a gap resulting between the brake disc and the brake dust particle filter housing can thereby be reduced, which improves sealing, since gap losses are minimized.

In an alternative embodiment, the housing can at least partially enclose the brake disc in another suitable manner, for example with housing side walls that are only in some areas or not at all parallel to the friction surface of the brake disc. In each case, the person skilled in the art will select a favorable embodiment.

According to a favorable embodiment, at least one of the housing walls can comprise at least one through opening and/or bead. The through openings can be disposed in a grid shape. As a result, the weight of the housing can be reduced without compromising stability. In addition, a fluid, for example ambient air, can be directed into the interior space of the housing as a coolant via the through openings, which contributes to cool down the brake disc. Furthermore, the at least one through opening allows a flow from the interior space to the environment. This is important to prevent an unacceptably high overpressure from occurring in the housing, and improves the separation performance of a filter medium attached to the housing wall with a through opening. The dimensions of the through opening can be designed and disposed in such a way as to reduce leakage of collected particles. A bead can reinforce the corresponding housing wall and contribute to the stability of the housing.

According to a favorable embodiment, at least one design element can be connected to at least one of the housing walls. In this case, the design element can cover several housing walls. As a result, small lots with small number of parts can be manufactured with any customer design and/or customer branding. The design element can be integrated into the housing or be designed as a separate component which can be attached with clips and/or spot-welded and/or screwed and/or riveted and/or welded and/or glued onto the housing. In the case of a detachable connection between the housing and the design element, the latter can be easily replaced if required. The through openings can also be used for attaching the design element.

According to a favorable embodiment, the design element can at least partially cover and/or reinforce a front side and/or a rear side and/or a circumferential surface. The open grid design of the front side and/or the rear side and/or the circumferential surface formed by the through openings of the housing walls can be covered by using the new design element and at the same time provides a stiffening of the housing at the connection points. As a result, wall thicknesses of the housing walls can be reduced, thereby reducing the cost and weight of the housing. The stiffening of the housing is ensured by the design element. As a result, the costs of the housing can be reduced thanks to the increase in strength provided by the design element.

According to a favorable embodiment, the housing can at least partially surround a brake disc of the disc brake assembly when in use. In particular, the housing can be ring segment-shaped for at least partially receiving the brake disc. In the case of a housing which completely covers the brake disc with the exception of the region covered by the brake caliper, it is possible for the brake disc to be encapsulated as much as possible by the circumferential housing. The housing can thereby prevent the particles or the dust, in particular the fine dust, from being discharged into the environment. The particles or dust can thus be deposited within the encapsulation. Particles or dust can thus be trapped or actively extracted. During extraction, a complete enclosure of the brake disc can be dispensed with. Particles or dust cannot be emitted into the environment, as the encapsulation can redirect the flow of particles accordingly. Particles or dust are deposited both in an existing filter medium and in the interior of the housing, in particular in areas adjacent to an internal ventilation of the brake disc. The housing for the enclosure can also be cleaned.

According to a favorable embodiment, a filter medium can be disposed on at least one interior side of the housing. For example, the housing can also be lined with a filter medium. As a result, this can increase the separation efficiency. Components without a filter medium can be cleaned during servicing and can thus regain the original separation capacity.

According to a further aspect of the invention, the aforementioned problem is solved in that a brake dust particle filter for a disc brake assembly comprising a brake caliper and a brake disc, comprises a housing having housing walls for at least partially receiving the brake disc in a housing interior enclosed by the housing walls, wherein a folded sheet metal blank forms a plurality of housing walls of the housing.

The housing, the housing walls of which are formed by a folded sheet metal blank, can also be produced inexpensively in smaller quantities.

In particular, the housing can be ring segment-shaped for at least partially receiving the brake disc. In the case of a housing which completely covers the brake disc with the exception of the region covered by the brake caliper, it is possible for the brake disc to be encapsulated as much as possible by the circumferential housing. The housing can thereby prevent the particles or the dust, in particular the fine dust, from being discharged into the environment. The particles or dust can thus be deposited within the encapsulation. In this way, particles or dust can be trapped or actively extracted. During extraction, a complete enclosure of the brake disc by the housing can be dispensed with. Particles or dust cannot be emitted into the environment, as the encapsulation can redirect the flow of particles accordingly. Particles remain both in an existing filter medium as well as in the interior of the housing, first of all in the internal ventilation. The housing for the enclosure can also be cleaned. A design element can reinforce the housing. In addition, the housing walls can include through openings or beads. The through openings can allow a supply of cooling fluid into the housing or a controlled discharge of particles from the housing. Furthermore, the at least one through opening allows a flow from the interior space to the environment. This is important to prevent an unacceptably high overpressure from occurring in the housing, and improves the separation performance of a filter medium attached to the housing wall with a through opening. In addition, the design element can be attached to the housing via a fastening arrangement that cooperates with through openings. The design element can also be attached to the housing by another appropriate fastening arrangement.

According to a favorable embodiment, the housing can be connected to the brake caliper. For example, end portions of the housing can be pushed over side walls or end walls of the brake caliper. As an alternative, side walls or end walls of the brake caliper can be pushed over the end portions of the housing. The overlapping regions can be connected to one another by suitable methods. In particular, a releasable connection between the brake caliper and the housing is possible. A sealing attachment is not necessarily required, thus simplifying the assembly of the housing to the brake caliper. However, the attachment of the housing is also possible via separate holders. A holder can be attached to the brake caliper holder, to the brake caliper or to the vehicle chassis.

According to a favorable embodiment, the housing can enclose the brake disc in a substantially U-shaped manner, wherein the front side and/or the rear side extend parallel to the brake disc, at least sectionwise, and a circumferential surface disposed between the front side and the rear side extend radially outwards in the circumferential direction of the housing. However, it is also possible for the front side and/or the rear side to extend at least sectionwise at an angle to the friction surface of the brake disc. Alternatively or additionally, the front side and/or the rear side can have a stepped course. In this connection, the front side and the rear side are each understood to be a wall of the housing which, in a mounting arrangement of the disc brake assembly, can extend normally to an axis of rotation of the brake disc or can extend parallel to a friction surface of the brake disc. The brake disc can project into the interior space via the open region of the U-shape. In an alternative embodiment, the housing can at least partially enclose the brake disc in another suitable manner, for example with housing side walls that are only in some areas or not at all parallel to the friction surface of the brake disc. In each case, the person skilled in the art will select a favorable embodiment.

A filter medium can be disposed on at least one interior side of the housing walls or on the interior side of the front side and/or the rear side and/or the circumferential surface, for example the housing can be lined by a filter medium. The separation of particles generated during the braking process can be enhanced thanks to the filter medium. Preferably, the filter medium can be designed to be stable even at a temperature of more than 600°C in order to withstand the temperatures in the immediate vicinity of a brake disc. In this case, the filter medium can feature a metal, a metal fiber non-woven fabric, glass, ceramic and/or a high-temperature resistant plastic material, in particular polyetheretherketone.

According to a further aspect of the invention, the aforementioned object is solved in that the disc brake assembly, in particular for brake systems for commercial vehicles, having a brake caliper, a brake disc and a brake dust particle filter, comprises a housing surrounding at least partially the brake disc, and the housing walls of which are formed by a folded sheet metal blank. Alternatively, the brake dust particle filter can comprise such a housing.

In particular, the housing can be ring segment-shaped for at least partially receiving the brake disc. In the case of a housing which completely covers the brake disc with the exception of the region covered by the brake caliper, it is possible for the brake disc to be encapsulated as much as possible by the circumferential housing. The housing can thereby prevent the particles or the dust, in particular the fine dust, from being discharged into the environment. The particles or dust can thus be deposited within the encapsulation. In this way, particles or dust can be trapped or actively extracted. During extraction, a complete enclosure of the brake disc by the housing can be dispensed with. Particles or dust cannot be emitted into the environment, as the encapsulation can redirect the flow of particles accordingly. Particles remain both in an existing filter medium as well as in the interior of the housing, first of all in the internal ventilation. The housing for the enclosure can also be cleaned. A design element can reinforce the housing. In addition, the housing walls can include through openings or beads. The through openings can allow a supply of cooling fluid into the housing or a controlled discharge of particles from the housing. In addition, the design element can be attached to the housing via a fastening arrangement that cooperates with through openings. The design element can also be attached to the housing by another appropriate fastening arrangement.

According to a further aspect of the invention, the aforementioned object is solved in that, in a method for manufacturing a housing for a disc brake assembly, in particular for a brake dust particle filter of a disc brake assembly, in particular for brake systems for commercial vehicles, a sheet metal blank having a plurality of sheet metal blank sections forming housing walls is formed. This sheet metal blank can be cast, punched or cut out. The sheet metal blank is folded at folding regions between the sheet metal blank sections, wherein the folded sheet metal blank sections at least partially enclose an interior space. For example, the sheet metal blank can be folded at the folding regions at a predetermined angle. For example, three sheet metal blank sections forming housing walls can be aligned with respect to each other in a U-shape by aligning the two adjacent sheet metal blank sections from one sheet metal blank section formed as a base at right angles or at another suitable angle with respect to the base. The sheet metal blank can have a plurality of housing sections, each having three or possibly more housing walls. The bases of adjacent housing sections can also have a predetermined angle with respect to each other. The sheet metal blank sections or housing walls disposed at the base can have opposing edges converging towards each other such that the housing walls of adjacent housing sections form a joined substantially closed front side, back side, and circumferential surface when folded.

In a favorable embodiment, the housing can feature a material that is stable at a temperature of more than 600°C in order to withstand the temperatures in the immediate vicinity of a disc brake assembly. Materials which have sufficient temperature resistance include for example sheet metal, preferably steel sheets.

Description of drawings

Further advantages will become apparent from the following drawing description. The drawings show examples of an embodiment of the invention. The drawings, the description and the claims contain numerous features in combination. The person of skill in the art will expediently consider the features also individually and combine them to other meaningful combinations.

Examples are shown in:

Fig. 1 a top view of a first example of an embodiment of a sheet metal blank in the unfolded state; Fig. 2 a side view of a first example of an embodiment of a housing according to the invention, with a folded sheet metal blank of Figure 1 forming the housing walls of the housing;

Fig. 3 a front view of the housing from Figure 2;

Fig. 4 a perspective side view of a second example of an embodiment of a housing according to the invention, comprising a folded board forming the housing walls of the housing;

Fig. 5 a perspective side view of a first example of an embodiment of a disc brake assembly with the second example of an embodiment of the housing of Fig. 4;

Fig. 6 a perspective side view of a brake disc disposed in a third example of an embodiment of a housing according to the invention, comprising a folded sheet metal blank and a design element; and

Fig. 7 a perspective side view of a second example of an embodiment of a disc brake assembly with the third example of an embodiment of the housing of Fig. 6.

Mode for invention

Identical or similar components in the figures have the same reference numerals. The figures only show examples and are not to be understood in a restrictive way.

As can be seen from Figures 5 and 7, the illustrated examples of an embodiment of the disc brake assembly 200 each include a brake caliper 210, a brake disc 220 (cf. Fig. 6), a brake dust particle filter 100, and a housing 110 at least partially surrounding the brake disc. The examples of an embodiment differ in the design of the housing 110. Of course, other dimensions of the brake disc 220 and the brake caliper 210 and the housing 1 10 than those shown can also be realized.

The brake dust particle filter 100 for the disc brake assembly 200 shown in Figures 5 and 7 comprising the brake caliper 210 and the brake disc 220, comprises the housing 110 with housing walls 123, 124, 125 for at least partially receiving the brake disc 220 in a housing interior space 112 enclosed by the housing walls 123, 124, 125 (cf. Fig. 6). In this connection, the housing 110 is connected to the brake caliper 210 or to a connecting component of the brake caliper. No sealing attachment of the housing 110 to the caliper 210 is required. As can be seen in Figure 5, an end portion of the housing 110 can be disposed to overlap an attachment area of the brake caliper 210. In the illustrated examples of an embodiment, the end portion of the housing 110 comprises attachment areas 116 configured as receptacles. A screw or another suitable fastener can pass through the receptacles to connect the attachment area of the caliper 210 to the end portion of the housing 110. The housing 110 encloses the brake disc 220 in a substantially U-shaped manner, wherein a front side 113 and a rear side 114 extend parallel to a friction surface of the brake disc 220 and a circumferential surface 115 disposed between the front side 113 and the rear side 114 extend radially outwards in the circumferential direction of the housing 110.

Figures 1 to 7 illustrate various examples of an embodiment of the housing 110 for the disc brake assembly 200 or the brake dust particle filter 100 comprising the caliper 210, the brake disc 220, and the brake dust particle filter 100. First, the common features of the examples of an embodiment of the housing 110 will be discussed.

The housing 110 for the disc brake assembly 200, in particular for a brake dust particle filter 100 of the disc brake assembly 200, in particular for brake systems for commercial vehicles, comprises a plurality of housing walls 123, 124, 125, 127, 129, wherein a folded sheet metal blank 120 forms the housing walls 123, 124, 125, 127, 129. To maintain clarity, not all housing walls 123, 124, 125, 127, 129 are identified with a reference numeral in the Figures shown.

Fig. 1 shows a top view of a first example of an embodiment of a sheet metal blank 120 in the unfolded state. Figures 2 to 7 show housings 110, the housing walls 123, 124, 125, 127, 129 of which are formed by a folded sheet metal blank 120.

As can be seen from Figure 1 , the sheet metal blank 120 in its unfolded state is a piece of cut-to-size sheet metal which is required to produce a sheet metal product by folding. By adapting the sheet metal blank section, different variants of housings 110 can be created. As can be further seen from Figures 1 to 7, the sheet metal blank 120 forms a plurality of housing sections 122 with three housing walls 123, 124, 125 each. In the illustrated examples of an embodiment, the three housing walls 123, 124, 125 of the housing sections 122 are disposed in a U-shape in the folded state. At their ends facing each other in the folded state (see Figs. 4 to 7), the housing sections 122 each feature inner peripheral wall portions 127, 129 that are folded axially towards the interior space 112 and each constitute a fourth housing wall. The inner peripheral wall portions 127, 129 are present axially inwardly and outwardly of the brake disc in a mounting arrangement and extend axially in the direction of the brake disc. Because of this, the width of a gap resulting between the brake disc and the brake dust particle filter housing can thereby be reduced, which improves sealing. The inner peripheral wall portions 127, 129 can be obtained starting from the sheet metal blank by a further folding or bending step. Advantageously, the inner peripheral wall portions 127, 129 can also be generated from a one-piece sheet metal blank. In the initial state of the one-piece sheet metal blank, the inner peripheral wall portions 127, 129 are present as respective end portions of the sheet metal blank sections 121 facing away from each other (cf. Fig. 1 ).

As can be further seen from Figures 2 to 7, the housing 110 in the examples of an embodiment shown is ring segment-shaped for at least partially receiving the brake disc 220. In this connection, the housing 110, in the intended state of use (Figures 5 to 7), completely covers the brake disc 220, with the exception of the region covered by the brake caliper 210 (Figure 6). As a result, the housing 110 can prevent particles or dust, in particular fine dust, generated during the braking process from being discharged into the environment. The particles or dust can thus be deposited within the enclosure created by the housing 110. In this way, particles or dust can be trapped or actively extracted. During extraction, a complete enclosure of the brake disc 220 by the housing 110 can be dispensed with. Particles or dust cannot be emitted into the environment, as the encapsulation can redirect the flow of particles accordingly. The housing 110 for the enclosure can also be cleaned.

The sheet metal blank 120 and, as a result, the housing 110 can feature a material that is stable at a temperature of more than 600°C in order to withstand the temperatures in the immediate vicinity of a disc brake assembly 200. Materials which have sufficient temperature resistance include for example sheet metal, preferably steel sheets.

As can be further seen from Figures 2 to 7, first housing walls 123 of the housing sections

122 form the front side 113 of the housing 100. Second housing walls 124 of the housing sections 122 form the rear side 114 of the housing 100. Third housing walls 125 of the housing sections122 form a circumferential surface 115 of the housing 100 and connect the first and second housing walls 123, 124 with each other. In the illustrated examples of an embodiment, the first and second housing walls 123, 124 adjacent to the third housing wall 125 are oriented at right angle to the respective third housing wall 125. The third housing walls 125 of adjacent housing sections 122 also feature a predetermined angle with respect to each other. In the illustrated examples of an embodiment, the third housing walls 125 feature a substantially rectangular cross-section. The first and second housing walls 123, 124 feature a quadrangular cross-section, wherein a base side of the cross-section is adjacent and parallel to the corresponding adjacent third housing wall

123 and a front face of the cross-section extends parallel thereto. Wherein two sides joining the base side and the front face converge towards each other so that the first and second housing walls 123, 124 of adjacent housing sections form a joined substantially closed front side 113 and back side 114 when folded.

As can be further seen from Figures 1 to 3 and 4 and 5, the examples of an embodiment of the housings 110 differ in the arrangement and shape of the through openings 126. The through openings 126 are disposed in both examples of an embodiment in a grid shape.

In the first example of an embodiment (Figures 1 to 3), the first and second housing walls 123, 124 each feature rows of three oval through openings 126, wherein the length of the oval through openings 126 varies depending on the position of the corresponding row on the tapered housing wall 123, 124. The third housing wall 125 features a plurality of through openings 126 with oval cross-section disposed adjacent to each other by overspanning the third housing wall 125. In the second example of an embodiment (Figures 4 and 5), the first and second housing walls 123, 124 each feature rows of two oval through openings 126, wherein the length of the oval through openings 126 varies depending on the position on the tapered housing wall 123, 124. At the front face sides, the first and second housing walls 123, 124 each feature a row with only one oval through opening 126. The third housing wall 125 features a plurality of through openings 126 of circular cross-section disposed in columns and rows.

The number, shape and arrangement of the through openings 126 can be of a different suitable type in further examples of an embodiment not shown.

In an example of an embodiment not shown, one of the housing walls 123, 124, 125 can additionally feature at least one bead. Furthermore, an embodiment without through openings 126 and without bead or an embodiment without through openings 126 and with bead is conceivable.

The third example of an embodiment of the housing 110 shown in Figures 6 and 7 differs from the first example of an embodiment and from the second example of an embodiment by a design element 130 connected to at least one of the housing walls 123, 124, 125. A customer branding can be disposed on the design element 130, moreover, it can contribute to shape the housing 110. In the illustrated example of an embodiment, the design element 130 completely covers the front side 113 and the corresponding through openings 126. A design element 130 can also be disposed on the rear side 114, which is not shown. Furthermore, the circumferential surface 115 can be covered by a corresponding design element 130. In an example of an embodiment not shown, the design element 130 can also cover the circumferential surface 115 and the front side 113 or the circumferential surface 115 and the rear side 114 or the circumferential surface 115, the front side 113, and the rear side 114. Furthermore, in an example of an embodiment not shown, the design element 130 can only partially cover the front side 113 and/or the rear side 114 and/or the circumferential surface 115. The design element 130 can directly abut on the housing wall 123, 124, 125 or the housing walls 123, 124, 125 or spaced apart from the housing wall 123, 124, 125 or the housing walls 123, 124, 125. The design element 130 can be a separate component that is clipped or spot-welded or screwed or riveted or welded or glued to the housing wall 123, 124, 125 or to the housing walls 123, 124, 125. A fastening arrangement not shown can feature a fastener which is connected to the housing walls 123, 124, 125 and to which the design element 130 can be fastened. Thus, the through openings 126 can not be covered by the design element 130. In the illustrated example of an embodiment, the design element 130 and/or the corresponding fastener reinforces the front side.

In an example of an embodiment not shown, a region of the brake disc 220 can not be disposed within the housing 110 and can not be covered by the brake caliper 210.

In a further example of an embodiment not shown, a filter medium can be disposed on at least one interior side of the housing 110. For example, the housing 110 can also be lined with a filter medium. As a result, this increases the separation efficiency of particles or dust. Preferably, the filter medium can be designed to be stable even at a temperature of more than 600°C in order to withstand the temperatures in the immediate vicinity of the brake disc 220. In this case, the filter medium can feature a metal, a metal fiber nonwoven fabric, glass, ceramic and/or a high-temperature resistant plastic material, in particular polyetheretherketone.

A housing 110 without or with filter medium can be designed to be washable for cleaning during service.

In a method, not shown, for manufacturing a housing 110 for a disc brake assembly 200, in particular for a brake dust particle filter 100 of a disc brake assembly 200, in particular for brake systems for commercial vehicles, a sheet metal blank 120 having sheet metal blank sections 121 forming a plurality of housing walls 123, 124, 125, 127, 129 is formed in a process step. In this connection, the sheet metal blank can be cast and/or punched and/or cut out. In the same or in a further process step, through openings 126 can be formed in the housing walls 123, 124, 125, 127, 129. In a further process step, the sheet metal blank 120 is folded at folding regions 128 between the sheet metal blank sections 121 , wherein the folded sheet metal blank sections 121 at least partially enclose an interior space 112. This can be done by folding. In a further process step, at least one design element 130 can be connected to at least one of the housing walls 123, 124, 125, 127, 129. Reference Numerals

100 brake dust particle filter

110 housing

112 housing interior space

113 front side

114 rear side

115 circumferential surface

116 attachment area

120 sheet metal blank

121 sheet metal blank section

122 housing section

123, 124, 125 housing wall

126 opening

127 inner peripheral wall portion

128 folding region

129 inner peripheral wall portion

130 design element

200 disc brake assembly

210 brake caliper

220 brake disc