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Combination piece of a PTC heating device

A heating device and assembly technology, which is applied to ohmic resistance heating components, ohmic resistance electrodes, ohmic resistance waterproof/airtight, etc., can solve problems such as flashover and explosion, improve reliability, avoid spillage, and ensure reliability The effect of sealing and insulating

Pending Publication Date: 2019-04-05
WUXI GUOWEI CERAMIC ELECTRICAL APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] Purpose of the invention: The purpose of the present invention is to solve the problem of loosening of the heat-conducting aluminum tube caused by the thermal stress release caused by the instantaneous cold and heat shock during the frequent work of the heating element in the tube of the existing PTC heating device - heating - shutdown cooling The gap between the heating element in the tube and the conductive electrode and the insulating layer, and the contact gap caused by the flashover between the heating element and the electrode sheet, carbonization, and even the local high temperature caused by the long-term flashover, resulting in the melting of the insulating layer A series of major and vicious safety accidents such as surface electrification and leakage, short circuit and breakdown, explosion and burning of flammable plastic indoor units

Method used

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  • Combination piece of a PTC heating device
  • Combination piece of a PTC heating device
  • Combination piece of a PTC heating device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] An assembly of PTC heating devices, including a PTC heating element composed of a PTC heating core, a heat-conducting aluminum tube 1 and a radiator 6, a first mounting bracket, a second mounting bracket 16, and a temperature controller 17 and a temperature fuse 18 connected The lead-in power wire harness, the heating core has a first electrode strip and a second electrode strip including a conductive surface and a heat-conducting surface, and several PTC heating sheets 3 are clamped side by side by the heat-conducting surface of the electrode strip 2, located on the The temperature-resistant insulating silica gel 4 between the PTC heating sheet 3 and the heat-conducting surface of the electrode strip 2 and the temperature-resistant insulating film 5 covering the electrode strip 2 clamping the PTC heating element, and the first mounting bracket has a seat body 19 And the cover 20, there is a large open cavity in the seat 19, after the electrical connection parts of diffe...

Embodiment 2

[0064] The utility model relates to an electrical appliance, which contains an assembly of PTC heating elements.

[0065] The electrical appliance is at least one selected from air conditioners, heaters, hot air curtains, bathroom heaters, dehumidifiers, air purifiers, clothes dryers, new energy vehicle heaters or defoggers.

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PUM

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Abstract

The invention discloses a combination piece of a PTC heating device. The combination piece comprises the PTC heating device, a first installation support, a second installation support and an introduction power supply harness, wherein the PTC heating device comprises a PTC heating core, a heat conduction aluminum pipe and a heat sink, the introduction power supply harness is connected with a temperature controller and a temperature fuse, and an electrode strip at a leading-out end of the heating device, an electrical connection part of the power harness connected with the heating device and acorresponding gap are all filled and sealed by insulation sealant. A combination gap of support seats and the heating device is sealed by sealant and is reinforced, the sealant with relatively good mobility can be effectively stored by a chamfer or a groove of a combination surface, water seepage is thoroughly prevented, and the water prevention performance is improved; and the combination area isexpanded by the sealant stored at a chamfer, the combination strength is improved, the service lifetime is prolonged, and electric leakage and short circuit caused by humidity and condensation waterdrop are prevented.

Description

technical field [0001] The invention relates to a thermosensitive ceramic heater, in particular to an assembly of PTC heating elements. Background technique [0002] A bracket for a PTC heat-sensitive ceramic electric heater and a PTC electric heater (publication number CN201174784), including a mounting surface and a supporting surface, a concave cavity for installing and fixing a heating element is arranged on the supporting surface, and the bottom of the concave cavity is also There is an inwardly extending cavity for placing the wires connected to the lead-out terminals of the heating element, and a lead-out hole is provided on the supporting surface at the bottom of the cavity. A through hole for placing the fuse is provided on one side wall of the supporting surface. [0003] Through this technical solution, the fuse can be combined with the bracket to prevent it from being connected to the periphery of the bracket and affecting safety. However, since it is still inst...

Claims

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Application Information

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IPC IPC(8): H05B3/02H05B3/03H05B3/04
CPCH05B3/02H05B3/03H05B3/04
Inventor 蒋国屏
Owner WUXI GUOWEI CERAMIC ELECTRICAL APPLIANCES CO LTD