CN205283197U - Battery management system supply circuit - Google Patents
Battery management system supply circuit Download PDFInfo
- Publication number
- CN205283197U CN205283197U CN201521118495.4U CN201521118495U CN205283197U CN 205283197 U CN205283197 U CN 205283197U CN 201521118495 U CN201521118495 U CN 201521118495U CN 205283197 U CN205283197 U CN 205283197U
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- power supply
- management system
- battery management
- input
- relay
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Abstract
The utility model relates to a battery management system supply circuit, including a power supply, the 2nd power supply, the 3rd power supply, first relay and second relay, the normal close input and a power supply of first relay are connected, normally open the input and are connected with the 2nd power supply, and the normal close output is connected with the normal close input of second relay, normally open output termination battery management system's negative pole power input, the input of normally opening of second relay is connected with the 3rd power supply, and normal close output and battery management system's anodal power input end is connected, normally opens the output and is connected with battery management system's negative pole power input, battery management system's negative pole power input ground connection. The utility model discloses a differentiation of supply circuit realization three routes power supply's priority when realizing that power supply above all the way is connected with battery management system simultaneously, only has power supply of the same kind to supply power for battery management system to the operation optimization of implementation system.
Description
Technical field
This utility model relates to battery management system technical field, is specifically related to a kind of battery management system power supply circuits.
Background technology
In prior art, battery management system (BMS) power supply circuits of electric automobile, when charging, charger provide power to battery management system (BMS) power supply; When electric discharge, car load accumulator power to battery management system (BMS). Said method is to be isolated by the power supply of the diode power supply by charger and car load accumulator, it is to avoid during single service, and the 24V power supply that charger or car load accumulator provide channels in other electronic equipments of car load mutually. If but when two-way power supply is also turned on, duplex feeding power supply does not have priority level, it is impossible to realize the optimized operation of system.
Utility model content
The purpose of this utility model is to overcome shortcomings and deficiencies of the prior art, it is provided that a kind of battery management system power supply circuits.
The purpose of this utility model is achieved through the following technical solutions:
A kind of battery management system power supply circuits, including the first power supply, the second power supply, the 3rd power supply, the first relay and the second relay, the normally closed input of described first relay and the first power supply connect, normally opened input and the second power supply connect, the normally closed input of normally closed outfan and the second relay connects, the negative power supply input of normally opened output termination battery management system; The normally opened input of the second relay and the 3rd power supply connect, normally closed outfan is connected with the cathode power supply input of battery management system, normally opened outfan is connected with the negative power supply input of battery management system, the negative power supply input end grounding of battery management system.
As preferred mode, described first power supply is car load battery feed.
As preferred mode, described second power supply is AC charging electromechanical source.
As preferred mode, described 3rd power supply is DC charging electromechanical source.
This utility model includes advantages below and beneficial effect compared to existing technology:
Power supply circuits of the present utility model realize the differentiation of the priority of three road power supplies, it is achieved when power supply more than a road is connected with battery management system simultaneously, and only having a road power supply is that battery management system is powered, thus realizing the operation optimization of system.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of battery management system power supply circuits in embodiment.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, this utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment
As shown in Figure 1, a kind of battery management system power supply circuits, including the first power supply, the second power supply, the second power supply, the first relay and the second relay, the normally closed input of described first relay and the first power supply connect, normally opened input and the second power supply connect, the normally closed input of normally closed outfan and the second relay connects, the negative power supply input of normally opened output termination battery management system; The normally opened input of the second relay and the 3rd power supply connect, normally closed outfan is connected with the cathode power supply input of battery management system, normally opened outfan is connected with the negative power supply input of battery management system, the negative power supply input end grounding of battery management system. In the present embodiment, described first power supply is car load battery feed 24V+; Described second power supply is AC charging electromechanical source 24V+; Described 3rd power supply is DC charging electromechanical source 24V+.
When car load battery feed 24V+, AC charging electromechanical source 24V+, DC charging electromechanical source 24V+ tri-road power supply are connected with battery management system simultaneously, second relay normally closed switch is opened, and now battery management system is powered by DC charging electromechanical source 24V+.
When DC charging electromechanical source 24V+ is without output, when car load battery feed 24V+ and AC charging electromechanical source 24V+ is connected with battery management system simultaneously, first relay normally closed switch is opened, the second relay normally closed switch Guan Bi, and now AC charging electromechanical source 24V+ is that battery management system is powered.
When current charge electromechanical source 24V+, AC charging electromechanical source 24V+ are all without output, when car load battery feed 24V+ is connected with battery management system, first relay normally closed switch Guan Bi, the second relay normally closed switch Guan Bi, now car load battery feed 24V+ is that battery management system is powered.
The differentiation of the priority of the circuit realiration three road power supply of the present embodiment, wherein the first priority is DC charging electromechanical source 24V+, and the second priority is AC charging electromechanical source 24V+, and third priority is car load battery feed 24V+. When battery management system power supply circuits of the present utility model not only avoid single channel power supply to power, power supply is gone here and there in other electronic equipments of car load mutually, simultaneously can according to actual needs when multiple-way supply power supply be concurrently accessed battery management system, by each road power supply is carried out prioritization, system is made to reach optimized operation effect.
This utility model can arrange the priority-level of each road power supply according to actual needs.
Embodiment described above only have expressed embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to this utility model the scope of the claims. It should be pointed out that, for the person of ordinary skill of the art, without departing from the concept of the premise utility, it is also possible to make some deformation and improvement, these broadly fall into protection domain of the present utility model. Therefore, the protection domain of this utility model patent should be as the criterion with claims.
Claims (4)
1. battery management system power supply circuits, it is characterized in that, including: the first power supply, the second power supply, the 3rd power supply, the first relay and the second relay, the normally closed input of described first relay and the first power supply connect, normally opened input and the second power supply connect, the normally closed input of normally closed outfan and the second relay connects, the negative power supply input of normally opened output termination battery management system; The normally opened input of the second relay and the 3rd power supply connect, normally closed outfan is connected with the cathode power supply input of battery management system, normally opened outfan is connected with the negative power supply input of battery management system, the negative power supply input end grounding of battery management system.
2. battery management system power supply circuits according to claim 1, it is characterised in that: described first power supply is car load battery feed.
3. battery management system power supply circuits according to claim 1, it is characterised in that: described second power supply is AC charging electromechanical source.
4. battery management system power supply circuits according to claim 1, it is characterised in that: described 3rd power supply is DC charging electromechanical source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521118495.4U CN205283197U (en) | 2015-12-26 | 2015-12-26 | Battery management system supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521118495.4U CN205283197U (en) | 2015-12-26 | 2015-12-26 | Battery management system supply circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205283197U true CN205283197U (en) | 2016-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521118495.4U Active CN205283197U (en) | 2015-12-26 | 2015-12-26 | Battery management system supply circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN205283197U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109884431A (en) * | 2019-03-08 | 2019-06-14 | 北京博电新力电气股份有限公司 | A kind of electric car DC charging facility detection device of building block system |
-
2015
- 2015-12-26 CN CN201521118495.4U patent/CN205283197U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109884431A (en) * | 2019-03-08 | 2019-06-14 | 北京博电新力电气股份有限公司 | A kind of electric car DC charging facility detection device of building block system |
| CN109884431B (en) * | 2019-03-08 | 2020-07-10 | 北京博电新力电气股份有限公司 | Cordwood system electric automobile direct current facility detection device that charges |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |