CN202696468U - Auxiliary power device of electric vehicle - Google Patents
Auxiliary power device of electric vehicle Download PDFInfo
- Publication number
- CN202696468U CN202696468U CN 201220306698 CN201220306698U CN202696468U CN 202696468 U CN202696468 U CN 202696468U CN 201220306698 CN201220306698 CN 201220306698 CN 201220306698 U CN201220306698 U CN 201220306698U CN 202696468 U CN202696468 U CN 202696468U
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- CN
- China
- Prior art keywords
- power
- storage battery
- switching tube
- automobile storage
- controller
- 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.)
- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to an auxiliary power device of an electric vehicle. A high-voltage main power supply of the electric vehicle generates low-voltage DC power through a step-down circuit to provide work power to various kinds of vehicle-borne instruments and control systems; a power battery group (B1) is connected with the input pole of a switch tube (M); a voltage feedback signal connected from the positive electrode of a vehicle battery (B2) is inputted to a controller (P); the controller (P) generates a PWM (pulse width modulation) signal to the gate of the switch tube (M) to control on/off of the switch tube (M); the output pole of the switch tube (M) is connected with the vehicle battery (B2) through a filter inductor (L) to supply float charging power to the vehicle battery (B2); and a cable is led out from both ends of the vehicle battery (B2) to supply low-voltage DC power to the electric vehicle control system.
Description
Technical field
[0001] the utility model relates to a kind of electric automobile auxiliary power unit, belongs to the electric automobile field.
Background technology
Electric car power supply is divided into main power source and accessory power supply, main power source is for driving the high voltage source of running car, accessory power supply is the Dc low voltage power supply that provides for vehicle-mounted various instrument, control system, the electric car power supply module is the guarantee of the stable operation of whole system, the reliability of power supply plays vital effect for the performance of whole system, the utility model proposes a kind of electric automobile auxiliary power unit.
Summary of the invention
The utility model is intended to propose a kind of electric automobile auxiliary power unit, utilizes the high pressure main power source of electric automobile to export Dc low voltage power supply by reduction voltage circuit, for various onboard instruments, control system provide working power.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
A kind of electric automobile auxiliary power unit, comprise: power battery pack (B1), filter capacitor I(C1), filter capacitor II(C2), switching tube (M), controller (P), fly-wheel diode (D), filter inductance (L), automobile storage battery (B2) is seen accompanying drawing 1;
With reference to the accompanying drawings, the course of work of the present utility model is described:
Power battery pack (B1) is connected to the input utmost point of switching tube (M), be input to controller (P) from the anodal voltage feedback signal that connects of automobile storage battery (B2), the pwm signal that controller (P) produces is connected to the grid of switching tube (M), (M) conducting of control switch pipe or cut-off, the output stage of switching tube (M) is connected to automobile storage battery (B2) by filter inductance (L), for it provides the floating charge electric energy, provide low-voltage dc power supply from automobile storage battery (B2) two ends outgoing cable for control system of electric automobile, filter capacitor I(C1) is connected to power battery pack (B1) two ends, filter capacitor II(C2) is connected to automobile storage battery (B2) two ends, strobe, fly-wheel diode (D) is connected between the output stage and automobile storage battery (B2) negative pole of switching tube (M), is that automobile storage battery (B2) provides continuous current at switching tube (M) blocking interval.
Description of drawings:
Fig. 1 is principle schematic of the present utility model.
Embodiment:
In order to make the technical solution of the utility model clearer, below in conjunction with drawings and Examples, the utility model is further described, instantiation described herein only in order to explain the utility model, is not limited to the utility model.
Embodiment:
Power battery pack (B1) is the high pressure main power source of electric automobile, be connected to the input utmost point of switching tube (M), be input to controller (P) from the anodal voltage feedback signal that connects of automobile storage battery (B2), the pwm signal that controller (P) produces is connected to the grid of switching tube (M), (M) conducting of control switch pipe or cut-off, the output stage of switching tube (M) is connected to automobile storage battery (B2) by filter inductance (L), for it provides the floating charge electric energy, provide low-voltage dc power supply from automobile storage battery (B2) two ends outgoing cable for control system of electric automobile, filter capacitor I(C1) is connected to power battery pack (B1) two ends, filter capacitor II(C2) is connected to automobile storage battery (B2) two ends, strobe, fly-wheel diode (D) is connected between the output stage and automobile storage battery (B2) negative pole of switching tube (M), is that automobile storage battery (B2) provides continuous current at switching tube (M) blocking interval.
Claims (1)
1. electric automobile auxiliary power unit, comprise: power battery pack (B1), filter capacitor I(C1), filter capacitor II(C2), switching tube (M), controller (P), fly-wheel diode (D), filter inductance (L), automobile storage battery (B2); It is characterized in that: power battery pack (B1) is connected to the input utmost point of switching tube (M), be input to controller (P) from the anodal voltage feedback signal that connects of automobile storage battery (B2), the pwm signal that controller (P) produces is connected to the grid of switching tube (M), (M) conducting of control switch pipe or cut-off, the output stage of switching tube (M) is connected to automobile storage battery (B2) by filter inductance (L), for it provides the floating charge electric energy, provide low-voltage dc power supply from automobile storage battery (B2) two ends outgoing cable for control system of electric automobile, filter capacitor I(C1) is connected to power battery pack (B1) two ends, filter capacitor II(C2) is connected to automobile storage battery (B2) two ends, strobe, fly-wheel diode (D) is connected between the output stage and automobile storage battery (B2) negative pole of switching tube (M), is that automobile storage battery (B2) provides continuous current at switching tube (M) blocking interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220306698 CN202696468U (en) | 2012-06-28 | 2012-06-28 | Auxiliary power device of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220306698 CN202696468U (en) | 2012-06-28 | 2012-06-28 | Auxiliary power device of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202696468U true CN202696468U (en) | 2013-01-23 |
Family
ID=47552021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220306698 Expired - Fee Related CN202696468U (en) | 2012-06-28 | 2012-06-28 | Auxiliary power device of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202696468U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103368391A (en) * | 2013-07-22 | 2013-10-23 | 成都联腾动力控制技术有限公司 | Step-down circuit with starting display and for electric vehicle |
| CN103368395A (en) * | 2013-07-22 | 2013-10-23 | 成都联腾动力控制技术有限公司 | Electric protective device for electric automobile |
| CN103368389A (en) * | 2013-07-22 | 2013-10-23 | 成都联腾动力控制技术有限公司 | Step-down circuit for electric vehicle |
| CN109980910A (en) * | 2017-10-30 | 2019-07-05 | 广东亿鼎新能源汽车有限公司 | A kind of pure electric automobile accessory power supply low-pressure system voltage regulator circuit |
| CN113895382A (en) * | 2021-10-09 | 2022-01-07 | 浙江吉利控股集团有限公司 | Vehicle power supply circuit, equipment and car |
-
2012
- 2012-06-28 CN CN 201220306698 patent/CN202696468U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103368391A (en) * | 2013-07-22 | 2013-10-23 | 成都联腾动力控制技术有限公司 | Step-down circuit with starting display and for electric vehicle |
| CN103368395A (en) * | 2013-07-22 | 2013-10-23 | 成都联腾动力控制技术有限公司 | Electric protective device for electric automobile |
| CN103368389A (en) * | 2013-07-22 | 2013-10-23 | 成都联腾动力控制技术有限公司 | Step-down circuit for electric vehicle |
| CN109980910A (en) * | 2017-10-30 | 2019-07-05 | 广东亿鼎新能源汽车有限公司 | A kind of pure electric automobile accessory power supply low-pressure system voltage regulator circuit |
| CN113895382A (en) * | 2021-10-09 | 2022-01-07 | 浙江吉利控股集团有限公司 | Vehicle power supply circuit, equipment and car |
| CN113895382B (en) * | 2021-10-09 | 2023-08-15 | 浙江吉利控股集团有限公司 | Vehicle power supply circuit, equipment and car |
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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: 20130123 Termination date: 20150628 |
|
| EXPY | Termination of patent right or utility model |