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A PTC heating device

A technology for heating devices and heaters, applied in the direction of ohmic resistance heating parts, ohmic resistance electrodes, etc., which can solve the problems of stamping damage, safety and reliability, poor contact between power lines and electrode sheets, and loose crimping, etc., to achieve Improved safety, improved crimping effect, and improved reliability

Pending Publication Date: 2018-12-21
SUZHOU GUOWEI CERAMIC ELECTRICAL APPLIANCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Purpose of the invention: The technical problem solved by the present invention is that the existing connection methods of power cords and electrode sheets have safety problems such as poor contact, loose crimping, and damaged stamping.

Method used

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  • A PTC heating device
  • A PTC heating device
  • A PTC heating device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A PTC heating device, comprising at least one heat dissipation strip 1 and a PTC heat-sensitive material heating element attached to the heat conduction sheet of the heat dissipation strip 1 as a group, the heat conduction sheet of the heat dissipation strip and the heating of the heat generation sheet There is a temperature-resistant silica gel 2 between the surfaces, and the heater is clamped in a special tooling to completely cure the silica gel. After the tooling is removed, the heat dissipation strip 1 and the heating element of the PTC heat-sensitive material are closely and firmly attached. An integrated PTC heating device, the clamping force of the tooling is 4-10Kg, and the heating sheets are not less than 4 pieces.

Embodiment 2

[0039] The heat conduction sheet of the heat dissipation strip 1 is the power input end, there is an extension surface 3 at the introduction end, the angle between the extension surface 3 and the introduction end is 45°, and the end of the introduction end is a connection surface 4, so The end of the connecting surface 4 is a crimping portion 5, and the crimping portion 5 has a through hole 6, the thickness of the crimping portion 5 is 0.25-1.5 mm, and the diameter of the through hole 6 is 1.5 mm. -6.0mm.

[0040] The crimping portion acts as a butt flat piece for riveting the power leads. Generally, the thickness of the lead-out surface is 0.2-0.4mm, the strength is low, and it is easy to deform. The function of the existing through hole is to rivet the insertion piece, and the insertion spring is connected to the insertion piece, and the aperture is also less than 2mm.

[0041] The connection surface 4 and the extension surface 3 are integrated, and the connection surface 4...

Embodiment 3

[0050] The heat conduction sheet of the heat dissipation bar 1 is the power input end, there is an extension surface 3 at the introduction end, the angle between the extension surface 3 and the introduction end is 90°, and the end of the introduction end is a connecting surface 4, so The end of the connecting surface 4 is a crimping portion 5, and the crimping portion 5 has a through hole 6, the thickness of the crimping portion 5 is 0.25-1.5 mm, and the diameter of the through hole 6 is 1.5 mm. -6.0mm.

[0051] The crimping portion acts as a butt flat piece for riveting the power leads. Generally, the thickness of the lead-out surface is 0.2-0.4mm, the strength is low, and it is easy to deform. The function of the existing through hole is to rivet the insertion piece, and the insertion spring is connected to the insertion piece, and the aperture is also less than 2mm.

[0052] The connection surface 4 is vertical and integrated with the extension surface 3 , the connection s...

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PUM

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Abstract

The invention discloses a PTC heating device, which comprises not less than two rows of radiators and a group of PTC heating fins attached between heat conduction planes of the radiators. The heatingdevice has a lead-out surface, and the lead-out surface is provided with a connecting through hole, and the through hole is riveted with a butt piece connected with a power supply lead wire, and the power supply wire harness is crimped on the butt piece. By adopting the design of the invention, the connecting insert piece, the electric connecting insert spring and the protective sleeve can be omitted on the basis of the prior art. Compared with the prior art, the invention has the core advantages of simple structure, low material cost, reliable electrical connection, remarkably improved use safety and production efficiency, etc., and achieves the invention effect of perfect combination of practicability, creativity and novelty.

Description

technical field [0001] The invention relates to a heater, in particular to a PTC heating device. Background technique [0002] (Publication No.: CN105953423A), lead-out terminals, unreliable connection and high cost [0003] (Publication No.: CN202799212U, CN2640002Y, CN2331140Y, CN2346042Y and 201621441888.3 and 201720111877.7), all of which adopt the structure of connecting inserts at the power supply introduction end [0004] The above-mentioned existing technologies all have safety accidents such as loosening and short-circuiting of the power supply connection part of the PTC heat-sensitive material heating device, which is easily affected by pulling. In addition, inserts, insert springs, and sheaths need to be added, which greatly increases the material cost of the product. [0005] 201420555835.9 using spray welding [0006] 201720221741.1 adopts the method of directly crimping the power cord to the lead-out end, and the crimping part is slightly twisted and easily ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/02H05B3/03
CPCH05B3/02H05B3/03
Inventor 蒋国屏李宁泰许立国
Owner SUZHOU GUOWEI CERAMIC ELECTRICAL APPLIANCE CO LTD