CN202651857U - Temperature control device of electric vehicle charger - Google Patents
Temperature control device of electric vehicle charger Download PDFInfo
- Publication number
- CN202651857U CN202651857U CN 201220355351 CN201220355351U CN202651857U CN 202651857 U CN202651857 U CN 202651857U CN 201220355351 CN201220355351 CN 201220355351 CN 201220355351 U CN201220355351 U CN 201220355351U CN 202651857 U CN202651857 U CN 202651857U
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- CN
- China
- Prior art keywords
- fan
- frequency transformer
- voltage control
- chip microcomputer
- temperature
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- 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.)
- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a temperature control device of an electric vehicle charger. The temperature control device comprises a power supply, a filter and a high-frequency transformer, wherein the high-frequency transformer is connected with a voltage control circuit, the voltage control circuit is connected with an output voltage control tube, the output voltage control tube is connected with a single-chip microcomputer, the single-chip microcomputer is connected with an ambient temperature sampling circuit and a fan control circuit, and the fan control circuit is connected with a fan used for cooling. The operating time of the fan in the charger can be controlled effectively, the fan can be shut down when not needed, and the service life of the fan can be prolonged. Moreover, the temperature of a switch power tube and the high-frequency transformer can be calculated automatically by the single-chip microcomputer, the switch power tube and the high-frequency transformer can be controlled to operate at the safety temperature, good protective effects can be achieved, and the switch power tube and the high-frequency transformer can be prevented from being damaged.
Description
Technical field
The utility model relates to a kind of battery charger, especially a kind of electric car charger temperature control equipment.
Background technology
When electric motor car charged by charger, charger is inner can to produce heat, if the charger internal components is overheated, can cause the device failure of charger inside, therefore is provided with the fan of heat radiation in charger inside.In order to prolong the useful life of charger, fan is a very crucial device.General in the situation that charger interior environment temperature is higher than 45 ° opens fans and get final product, and the fan in the charger is moving in the process of charging always at present, has reduced so widely the useful life of fan.
Summary of the invention
The utility model is for solving the shortcoming of above-mentioned prior art, a kind of electric car charger temperature control equipment is provided, when the charger internal temperature is higher than 45 °, open fan, and when the charger internal temperature is lower than this temperature, close fan, prolong the useful life of charger.
The utility model solves the technical scheme that its technical problem adopts: this electric car charger temperature control equipment, comprise power supply, filter, high frequency transformer, high frequency transformer connects voltage control circuit, voltage control circuit connects the output voltage control pipe, the output voltage control pipe connects single-chip microcomputer, be connected with ambient temperature sample circuit and fan control circuitry on the single-chip microcomputer, fan control circuitry connects the fan that is used for heat radiation.The ambient temperature sample circuit detects the ambient temperature in the charger, whether detected temperatures is greater than 45 °, whether the temperature controlled fan according to charger inside moves, make fan only need in over-heat inside, to open, in time play the effect of heat radiation, special winter, ambient temperature is lower, the time that fan is opened can be reduced, thereby the useful life of fan can be prolonged.
High frequency transformer is the connecting valve power tube also, and switching power tube is connected with modulation chip, light-coupled isolation control device, output voltage control pipe, single-chip microcomputer in turn.In order to increase the reliability of charger, to strictly control switching power tube, the high frequency transformer temperature of charger, when being higher than 95 °, temperature to reduce charging current exactly, when further increasing, temperature will adopt the pulse current charge of distinct pulse widths in (particularly summer) until turn-off a period of time, after temperature is recovered, normal control charging.This mode of operation is automatically calculated by single-chip microcomputer and is finished control, prevents in the situation that ambient temperature is overheated, to the playing a protective role of charger internal components, avoids device to burn out when the fan cooling effect is inadequate.
The effect that the utility model is useful is: the utility model can effectively be controlled the fan opening time in the charger; close fan in the situation that do not need to use; prolonged the useful life of fan; and the temperature by the automatic compute switch power tube of single-chip microcomputer, high frequency transformer; and control it and in the temperature of safety, move; play a good protection, prevent its damage.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Description of reference numerals: power supply 1, filter 2, high frequency transformer 3; voltage control circuit 4, output voltage control pipe 5, single-chip microcomputer 6; fan control circuitry 7; fan 8, ambient temperature sample circuit 9, switching power tube 10; modulation chip 11; light-coupled isolation control device 12, reverse connection prevention protection circuit 13, output 14.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
With reference to accompanying drawing: this electric car charger temperature control equipment, comprise power supply 1, filter 2, high frequency transformer 3, high frequency transformer 3 connects voltage control circuit 4, voltage control circuit 4 connects output voltage control pipe 5, output voltage control pipe 5 connects single-chip microcomputer 6, be connected with ambient temperature sample circuit 9 and fan control circuitry 7 on the single-chip microcomputer 6, fan control circuitry 7 connects the fan 8 that is used for heat radiation.High frequency transformer 3 is gone back connecting valve power tube 10, and switching power tube 10 is connected with modulation chip 11, light-coupled isolation control device 12, output voltage control pipe 5, single-chip microcomputer 6 in turn.
The utility model can effectively be controlled 8 opening times of fan in the charger; close fan 8 in the situation that do not need to use; prolonged the useful life of fan 8; and the temperature by single-chip microcomputer 6 automatic compute switch power tubes 10, high frequency transformer 3; and control it and in the temperature of safety, move; play a good protection, prevent its damage.
Although the utility model illustrates and describes by the reference preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation on form and the details.
Claims (2)
1. electric car charger temperature control equipment, comprise power supply (1), filter (2), high frequency transformer (3), it is characterized in that: described high frequency transformer (3) connects voltage control circuit (4), voltage control circuit (4) connects output voltage control pipe (5), output voltage control pipe (5) connects single-chip microcomputer (6), be connected with ambient temperature sample circuit (9) and fan control circuitry (7) on the single-chip microcomputer (6), fan control circuitry (7) connects the fan (8) that is used for heat radiation.
2. electric car charger temperature control equipment according to claim 1, it is characterized in that: described high frequency transformer (3) is gone back connecting valve power tube (10), and switching power tube (10) is connected with modulation chip (11), light-coupled isolation control device (12), output voltage control pipe (5), single-chip microcomputer (6) in turn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220355351 CN202651857U (en) | 2012-07-23 | 2012-07-23 | Temperature control device of electric vehicle charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220355351 CN202651857U (en) | 2012-07-23 | 2012-07-23 | Temperature control device of electric vehicle charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202651857U true CN202651857U (en) | 2013-01-02 |
Family
ID=47420901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220355351 Expired - Fee Related CN202651857U (en) | 2012-07-23 | 2012-07-23 | Temperature control device of electric vehicle charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202651857U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683388A (en) * | 2013-11-15 | 2014-03-26 | 小米科技有限责任公司 | Charger, terminal, overheating protection system and overheating protection method |
| CN107415733A (en) * | 2017-07-27 | 2017-12-01 | 安吉天剑电器科技有限公司 | A kind of electric car charger intelligent control method |
-
2012
- 2012-07-23 CN CN 201220355351 patent/CN202651857U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683388A (en) * | 2013-11-15 | 2014-03-26 | 小米科技有限责任公司 | Charger, terminal, overheating protection system and overheating protection method |
| CN103683388B (en) * | 2013-11-15 | 2016-09-21 | 小米科技有限责任公司 | Charger, terminal, overheat protecting system and method for excessive heating protection |
| CN107415733A (en) * | 2017-07-27 | 2017-12-01 | 安吉天剑电器科技有限公司 | A kind of electric car charger intelligent control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20150723 |
|
| EXPY | Termination of patent right or utility model |