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PTC (positive temperature coefficient) heating device

A heating device and heater technology, which is applied to heating elements, ohmic resistance heating parts, etc., can solve the problems of damage to safety and reliability of stamping, poor contact between power lines and electrode sheets, and loose crimping, etc. The effect of improving the performance, improving the crimping effect, and ensuring the safety

Pending Publication Date: 2019-02-12
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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  • PTC (positive temperature coefficient) heating device
  • PTC (positive temperature coefficient) heating device
  • PTC (positive temperature coefficient) heating device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] 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

[0048] 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.

[0049] 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.

[0050] The connection surface 4 and the extension surface 3 are integrated, and the connection surface 4...

Embodiment 3

[0063] 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.

[0064] 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.

[0065] The connection surface 4 is vertical and integrated with the extension surface 3 , the connection s...

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Abstract

The invention discloses a PTC (positive temperature coefficient) heating device, comprising at least two rows of radiators and PTC heaters attached among heat transfer planes of the radiators to formone group. The PTC heating device has an outgoing face provided with interconnection via holes; butt plates connected with power leads are riveted to the interconnection via holes; a power harness iscrimped to the butt plates. The design herein may omit interconnection inserts, electrical connection springs and sheaths based on the prior art. Compared with the prior art, the PTC heating device has the core advantages of simple structure, lower material cost, good reliability of electrical connection, good application safety, evidently improved production efficiency and the like; utility, innovativeness and novelty are perfectly combined.

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): H05B3/02H05B3/06
CPCH05B3/02H05B3/06
Inventor 蒋国屏王洁其
Owner SUZHOU GUOWEI CERAMIC ELECTRICAL APPLIANCE CO LTD
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