Title:
COOLING DEVICE FOR A SENSOR WHICH CAN BE USED AT A HIGH AMBIENT TEMPERATURE
Document Type and Number:
WIPO Patent Application WO/2011/042421
Kind Code:
A3
Abstract:
The invention relates to a cooling device (10) for a sensor (11) provided for detecting a physical variable e.g. path, angle, pressure, force, colour, structure etc, the operational temperature of said sensor not allowing a threshold value Ts to be exceeded. Said sensor surrounds a tubular-shaped sensor housing (14) which distributes the dissipated heat from the sensor (11) to a cooling body of the cooling device (10), and said sensor can be securely inserted in a firm manner onto one end of a tubular-shaped sensor support (16) based on the base form and made of a good heat-conducting material, the other end is coupled to the cooling body (17) via which heat is transferred to a coolant surrounding the cooling body or flowing there-through. According to the invention, a cylindrical pot shaped protective housing (26) surrounds the sensor support, displaying mechanical and also thermal protection, which is embodied as a window on the base area (26/1) adjacent to the sensor element, via which the measurement variable which is to be detected is reached whilst interacting with the sensor element (13). Said sensor support (16) is adapted to the protective housing (26) and the insulation layer thereof (29), such that the heat resistance (39) is much smaller than the heat resistance (38) of the insulation layer (29). A thermal pipe arrangement (50) is provided for thermally coupling the sensor support (16) and the cooling body (17).
Inventors:
HARTMANN STEVEN (DE)
Application Number:
PCT/EP2010/064807
Publication Date:
August 11, 2011
Filing Date:
October 05, 2010
Export Citation:
Assignee:
IAS GMBH IND AUTOMATIONS SYSTEME (DE)
HARTMANN STEVEN (DE)
HARTMANN STEVEN (DE)
International Classes:
F28D15/02; G02B7/00; G12B15/02; G12B17/06; H01G2/08
Domestic Patent References:
| WO2005121682A1 | 2005-12-22 |
Foreign References:
| US4169387A | 1979-10-02 | |||
| US2917642A | 1959-12-15 | |||
| EP0235778A2 | 1987-09-09 | |||
| DE202008014236U1 | 2009-02-12 | |||
| FR2611973A1 | 1988-09-09 | |||
| DE4418656A1 | 1994-12-08 | |||
| DE2720118A1 | 1978-11-16 |
Attorney, Agent or Firm:
LUTZ, Johannes et al. (Stuttgart, DE)
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