CN202522338U - Temperature detection device for electric vehicle direct current charging port - Google Patents
Temperature detection device for electric vehicle direct current charging port Download PDFInfo
- Publication number
- CN202522338U CN202522338U CN2012201008882U CN201220100888U CN202522338U CN 202522338 U CN202522338 U CN 202522338U CN 2012201008882 U CN2012201008882 U CN 2012201008882U CN 201220100888 U CN201220100888 U CN 201220100888U CN 202522338 U CN202522338 U CN 202522338U
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- China
- Prior art keywords
- charging
- electric vehicle
- direct current
- thermistor
- current charging
- Prior art date
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- 238000001514 detection method Methods 0.000 title abstract 4
- 238000007789 sealing Methods 0.000 claims description 4
- 230000011664 signaling Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 230000000630 rising Effects 0.000 abstract 1
- 230000002159 abnormal effects Effects 0.000 description 3
- 238000010586 diagrams Methods 0.000 description 3
- 238000005516 engineering processes Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reactions Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002269 spontaneous Effects 0.000 description 1
Abstract
The utility model discloses a temperature detection device for an electric vehicle direct current charging port. The temperature detection device for the electric vehicle direct current charging port comprises an electric vehicle direct current charging plug or socket and is characterized in that the electric vehicle direct current charging plug or socket is equipped with an signal contact pin, the signal contact pin is connected with a signal line circuit; a thermistor is connected in series on the signal line; and the thermistor is equipped at an end near the signal contact pin and arranged on a positive and negative polarity cable. The temperature detection device for the electric vehicle direct current charging port has a simple structure, prevents potential safety hazard caused by sharply rising temperature in an electric charging process, is safe and reliable and effectively prolongs service life of products.
Description
Technical field
The utility model relates to the Vehicular rechargeable technical field, a kind of technology of temperature-detecting device of electric automobile DC charging mouth in the time of specifically.
Background technology
Along with popularizing of electric automobile, the charging electric vehicle security becomes the safety problem that people can not ignore, because electronic charging process is a unattended process; Different with traditional charging system, the electric current of charging electric vehicle and voltage are high, and plug and socket is influenced by terminal structure, product access times and dust accretions etc. in the charging process; Usually have the phenomenon generation that temperature sharply raises, if untimely cleaning and maintenance, product temperature will cause more serious potential safety hazard after sharply raising; And the serviceable life of reducing product greatly, like the plug casing explosion, cable burns; The spontaneous combustion that temperature raises and causes, it is hot to burn etc.
Summary of the invention
The purpose of the utility model provides a kind of simple in structure, prevents in the electronic charging process that temperature from sharply raising to cause the generation of potential safety hazard that the temperature-detecting device of safe and reliable electric automobile DC charging mouth effectively prolongs serviceable life of product.
The purpose of the utility model realizes through following technical scheme.
A kind of temperature-detecting device of electric automobile DC charging mouth; Comprise electric automobile DC charging mouth charging plug or charging socket; It is characterized in that: the signal pin that charging is confirmed is installed on said electric automobile DC charging mouth charging plug or the charging socket; Signal pin is connected with signaling line circuit, on signal wire, is connected in series with thermistor, and thermistor is installed near the signal pin end and is arranged on the positive and negative polarity cable.
Said thermistor sealing and fixing is in a cable snap ring, and the cable snap ring is fixedly connected with positive and negative polarity cable.
The utility model compared with prior art has the following advantages:
The utility model is used on the signal wire of the signal pin that charging on DC charging mouth charging plug or the charging socket is confirmed, being connected in series with thermistor; Thermistor is installed near the signal pin end and is arranged on the positive and negative polarity cable; When the temperature of product was higher, the control device on vehicle and the power-supply unit detected abnormal signal, thus protection automatically; Stop charging, greatly reduce because the higher security incident that causes of temperature.
Description of drawings
Fig. 1 is the temperature-detecting device structural representation of the utility model electric automobile DC charging mouth;
Fig. 2 is the cross-sectional view at the C-C place of Fig. 1;
Fig. 3 is the part section structural representation at the A-A place of Fig. 1;
Fig. 4 is the temperature-detecting device circuit principle structure synoptic diagram of the utility model electric automobile DC charging mouth;
Fig. 5 be the utility model electric automobile DC charging mouth temperature-detecting device thermistor resistance and temperature concern synoptic diagram.
Embodiment
Describe in further detail below in conjunction with the temperature-detecting device of accompanying drawing the utility model electric automobile DC charging mouth.
The temperature-detecting device of the utility model electric automobile DC charging mouth; Comprise electric automobile DC charging mouth charging plug or charging socket; The signal pin that charging is confirmed is installed on electric automobile DC charging mouth charging plug or charging socket; Signal pin is connected with signaling line circuit, on signal wire, is connected in series with thermistor, and thermistor is installed near the signal pin end and is arranged on the positive and negative polarity cable.The thermistor sealing and fixing is in a cable snap ring, and the cable snap ring is fixedly connected with positive and negative polarity cable.
Describe in detail with electric vehicle alternating-current charging mouth charging plug below: like Fig. 1-Fig. 4; Electric vehicle alternating-current charging mouth charging plug comprises DC plug housing 1, grab 2, direct current rifle housing 3; On direct current rifle housing 3, be provided with pilot lamp 4 and indicator-lamp cover 5, the signal pin 6 that is provided with the charging affirmation in the DC plug housing 1 is CC contact pin, 8-12mm contact pin 10, and signal pin 6 is connected with signal wire 61 circuit; Be connected in series with thermistor 7 on the signal wire 61; Wherein thermistor 7 is located in the cable snap ring 8, and it is signal wire 61 that the two ends of thermistor 7 are connected with electric wire, makes the thermistor sealing and fixing in cable snap ring 8 being provided with O-ring seal 9 on the electric wire.8-12mm contact pin 10 is that positive polarity cable DC+, negative polarity cable DC-are connected through line ball end 11 and cable 12.Fig. 5 is the synoptic diagram that concerns of thermistor resistance and temperature.CC1 line like Fig. 5 is a signal wire.
The utility model is through confirming thermistor of series connection on the line through the CC1 on DC charging mouth charging plug or the charging socket; When the temperature of product is higher; Control device on vehicle and the power-supply unit detects abnormal signal, thereby protection automatically stops charging.Greatly reduce because the higher security incident that causes of temperature.
In the drawings, when the charging electric vehicle mouth charges, occur just may causing the charge port temperature too high unusually, thermistor 7 is installed in the place about the 40mm of 8-12mm contact pin 10 (line ball end); And thermistor and DC+, DC-cable are fixed together with cable snap ring 8, depend primarily on DC+, the heating of DC-cable because temperature raises, at this moment; The resistance of thermistor 7 can with around temperature variation change, like Fig. 5, when the abnormal temperature of charging plug reaches a certain setting value; Such as being 85 ℃; Then the resistance of thermistor 7 can reach infinitely great, is equivalent to confirm that line CC1 breaks off, thereby stops charging; So just, improved safe class, also greatly reduced simultaneously because the security incident that temperature is brought.
Claims (2)
1. the temperature-detecting device of an electric automobile DC charging mouth; Comprise electric automobile DC charging mouth charging plug or charging socket; It is characterized in that: the signal pin that charging is confirmed is installed on said electric automobile DC charging mouth charging plug or the charging socket; Signal pin is connected with signaling line circuit, on signal wire, is connected in series with thermistor, and thermistor is installed near the signal pin end and is arranged on the positive and negative polarity cable.
2. the temperature-detecting device of electric automobile DC charging mouth according to claim 1 is characterized in that: said thermistor sealing and fixing is in a cable snap ring, and the cable snap ring is fixedly connected with positive and negative polarity cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201008882U CN202522338U (en) | 2012-03-16 | 2012-03-16 | Temperature detection device for electric vehicle direct current charging port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201008882U CN202522338U (en) | 2012-03-16 | 2012-03-16 | Temperature detection device for electric vehicle direct current charging port |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202522338U true CN202522338U (en) | 2012-11-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201008882U CN202522338U (en) | 2012-03-16 | 2012-03-16 | Temperature detection device for electric vehicle direct current charging port |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202522338U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098884A (en) * | 2015-07-01 | 2015-11-25 | 小米科技有限责任公司 | Charging device and charging method for mobile terminal |
| CN106450954A (en) * | 2016-10-13 | 2017-02-22 | 周峰 | Electric car charging gun with alarming function |
-
2012
- 2012-03-16 CN CN2012201008882U patent/CN202522338U/en active IP Right Grant
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098884A (en) * | 2015-07-01 | 2015-11-25 | 小米科技有限责任公司 | Charging device and charging method for mobile terminal |
| CN106450954A (en) * | 2016-10-13 | 2017-02-22 | 周峰 | Electric car charging gun with alarming function |
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