CN2116323U - Electrothermal defroster - Google Patents
Electrothermal defroster Download PDFInfo
- Publication number
- CN2116323U CN2116323U CN 92201254 CN92201254U CN2116323U CN 2116323 U CN2116323 U CN 2116323U CN 92201254 CN92201254 CN 92201254 CN 92201254 U CN92201254 U CN 92201254U CN 2116323 U CN2116323 U CN 2116323U
- Authority
- CN
- China
- Prior art keywords
- shell
- radiator
- heating
- gland
- port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- 210000004907 gland Anatomy 0.000 claims abstract description 11
- 239000004065 semiconductor Substances 0.000 claims abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000011889 copper foil Substances 0.000 claims abstract description 9
- 238000010257 thawing Methods 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 230000005855 radiation Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract 1
- 239000011521 glass Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
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- Air-Conditioning For Vehicles (AREA)
Abstract
The utility model relates to an electrothermal defroster used for automobile windshields, comprising a metallic crust. The rear part of the metallic crust is provided with a micromotor and an axial flow fan. The micromotor is fixed with a crust by an installation rack. The front part of the crust is provided with an airflow heater. The airflow heater comprises a heating liner tube, a radiation body, a gland, semiconductor heating sheets and a copper foil electrode. The copper foil electrode is arranged between two semiconductor heating sheets and is fixed in the radiation body by the gland in the compacting mode. The radiation body is installed in the heating liner tube. The port of the front end of the heating liner tube is bunted against the inner side of the port of the front end of the crust. The rear end is bunted against an elastic clip ring in the middle part of the curst. The crust is fixed on a supporting rack by a locking strip.
Description
The utility model relates to a kind of electric defrosting device that is used for windshield, particularly uses the electric defrosting device of PTC heater element.
When ambient temperature is low, frosting often appears in the front windshield of automobile, stop driver's sight line, influence normal driving, frost removal commonly used is a kind of electric heating tubular type frost removal, be installed in apart from the nearer place of shield glass, the thermal radiation that utilizes electrothermal tube to produce is heated to glass, reaches the purpose of defrosting.But this frost removal power consumption is bigger, and efficient is not high.
The purpose of this utility model provides a kind of electric defrosting device that utilizes thermal current to glass heats, not only can improve the efficient of defrosting, and little power consumption.
The purpose of this utility model realizes by following scheme: a metal shell is arranged, its rear portion is provided with electrical micro-machine and aerofoil fan, electrical micro-machine is fixed by installing rack and shell, the shell front portion is provided with flow type calorifier, this flow type calorifier is by the heating bushing pipe, radiator, gland, semiconductor heating sheet and copper foil electrode constitute, copper foil electrode is located in the middle of two semiconductor heating sheets, and it is pressed abd fixed in the radiator by gland, radiator is provided with arm, respectively be provided with two breach of laying arm on the two-port of heating bushing pipe, radiator is installed in the heating bushing pipe by arm, heating bushing pipe front port is pressed on shell front port inboard, thereafter port is pressed on the elastic collar at shell middle part, shell is fixed on the carriage by a locking belt, and this carriage is by fixing holder, rotate holder, support flexible metal conduit and base to constitute.The utility model uses the 12V DC power supply, after energized, the driven by motor fan by the shell rear portion to anterior air blast, semiconductor heating sheet heating power, when the air-flow when the rear portion passes through flow type calorifier, at once be heated to form thermal current, spray from the utility model front port, the utility model front port is aimed at the windshield of frosting, and thermal current can evaporate with its thawing and with it rapidly, thereby reaches the purpose of defrosting, this moment single full continuous radius, can prevent frosting once more, when vehicle interior temperature raises, power of the present utility model will reduce automatically.
Because the utility model uses thermal current that frosting glass is directly heated defrosting, and use semiconductor heating sheet to be thermal source,, have the defrosting efficiency height, the advantage of little power consumption therefore than prior art.
Further describe embodiment of the present utility model below in conjunction with accompanying drawing:
Fig. 1, the utility model structural representation
Fig. 2, the radiator assembly
Fig. 3, Fig. 2 A-A analyses and observe
Fig. 4, heating bushing pipe schematic diagram
Referring to accompanying drawing, an example of the present utility model, be to use the electric defrosting device of 12V DC power supply, this electric defrosting device maximum power can reach 300 watts, can under-40 ℃ of environment, guarantee the windshield frost-free, this electric defrosting device has a metal shell 1, its volume is suitable with hair dryer shell commonly used, be provided with the small-sized axial flow fan 3 that direct current micromotor 2 reaches by its driven rotary at its rear portion, electrical micro-machine is fixed by installing rack 4 and shell, outer casing back leaves air inlet 19, flow type calorifier is equipped with in the shell front portion, this flow type calorifier is by heating bushing pipe 5, radiator 6, gland 7, PTC semiconductor heating sheet 8 and copper foil electrode 9 constitute, and copper foil electrode is circular, be installed in the middle of two circular PTC semiconductor heating sheets, and it be pressed abd fixed in the radiator by gland.
The two sides of PTC heating sheet should be close to radiator and gland and guarantee well to contact, and its circumferential edges and radiator leave certain interval, and use the epoxy resin filling, guarantee insulation.Referring to Fig. 2, Fig. 3, radiator is provided with arm 10, also be provided with multi-disc radiated rib 12 on the lateral surface of radiator and gland, be used for improving the power of heat transfer efficiency and raising PTC heating sheet, referring to Fig. 4, the heating bushing pipe is a metal circular tube, respectively be provided with on the two-port in 11, two radiators of breach of laying arm pack the heating bushing pipe into from its two ends, fix by arm and heating bushing pipe, two copper foil electrodes link through switch 14 and automobile storage battery positive pole by drawing lead 13.The heating bushing pipe is contained in the shell front portion, and its front port is pressed on shell front port 15 inboards, and port is pressed on the elastic collar 16 at shell middle part thereafter, and for reducing gas-flow resistance in the heating bushing pipe, the design of radiator end face has wedge angle 17.The shell middle part is fixed by locking belt 18 and carriage.This carriage is made of fixing holder 20, rotation holder 21, support flexible metal conduit 22 and base 23, and the utility model is contained on the automobile, can adjust the air flow jetting direction arbitrarily.
Claims (3)
1, a kind of electric defrosting device that is used for windshield, it is characterized in that, a metal shell is arranged, its rear portion is provided with electrical micro-machine and aerofoil fan, electrical micro-machine is fixed by installing rack and shell, the shell front portion is provided with flow type calorifier, this heater is by the heating bushing pipe, radiator, gland, semiconductor heating sheet and copper foil electrode constitute, copper foil electrode is located in the middle of two semiconductor heating sheets, and it is pressed abd fixed in the radiator by gland, radiator is provided with arm, respectively is provided with two breach of laying arm on the two-port of heating bushing pipe, and radiator is installed in the heating bushing pipe by arm, heating bushing pipe front port is pressed on shell front port inboard, thereafter port is pressed on the elastic collar at shell middle part, and shell is fixed on the carriage by a locking belt, and this carriage is by fixing holder, rotate holder, support flexible metal conduit and base to constitute.
2, electric defrosting device according to claim 1 is characterized in that, the lateral surface of described radiator and gland is provided with the multi-disc radiated rib.
3, electric defrosting device according to claim 2 is characterized in that, described radiator end face is provided with wedge angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92201254 CN2116323U (en) | 1992-01-27 | 1992-01-27 | Electrothermal defroster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92201254 CN2116323U (en) | 1992-01-27 | 1992-01-27 | Electrothermal defroster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2116323U true CN2116323U (en) | 1992-09-16 |
Family
ID=4948337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92201254 Granted CN2116323U (en) | 1992-01-27 | 1992-01-27 | Electrothermal defroster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2116323U (en) |
-
1992
- 1992-01-27 CN CN 92201254 patent/CN2116323U/en active Granted
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |