HEATER OF IMPULSE SEALER COVERED WITH CERAMICS

Title:

HEATER OF IMPULSE SEALER COVERED WITH CERAMICS

Document Type and Number:

WIPO Patent Application WO/2010/116567

Kind Code:

A1

Abstract:

A heavy transformer is essential to an impulse heat sealer because the heater wire is short and wide. However, when thin slits are made in the strip heater wire from the opposite sides and the strip heater wire is elongated in zigzag, the transformer can be eliminated. However, in order to use the elongated heater wire in countries using a rated voltage of 200-240V without risk, such a structure that a hand does not touch the bare heater wire semipermanently, generated heat comes out quickly on the surface and disappears is required. A ceramics thin plate of good heat conductor and electrical insulator consisting of aluminum nitride, for example, and having a thickness of 0.6 mm is placed on the heating portion of a zigzag heater wire of a metal resistor thin plate, the entire periphery is surrounded by a thermal electrical insulator such as a glass cloth while leaving the upper surface thereof, and then the whole is made to adhere and fixed onto the heat dissipation base. The good heat conductor and electrical insulator is further reinforced with a heater reinforcement, as required.

Inventors:

SAKAMOTO ATSUNOBU (JP)
SAKAMOTO KAZUKO (JP)
YAMADA KAZUKUNI (JP)

Application Number:

PCT/JP2009/069793

Publication Date:

October 14, 2010

Filing Date:

November 24, 2009

Export Citation:

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Assignee:

SAKAMOTO ATSUNOBU (JP)
SAKAMOTO KAZUKO (JP)
YAMADA KAZUKUNI (JP)

International Classes:

B29C65/38; B65B1/10; H05B3/10; H05B3/20

Domestic Patent References:

WO2000075018A1

2000-12-14

Foreign References:

JP2005007606A	2005-01-13
JPH01267126A	1989-10-25
JPS57167004U	1982-10-21
JP3943934B2	2007-07-11
JP2005007606A	2005-01-13

Other References: