CN208862630U - A kind of single supply 12V/24V BMS accessory power supply switching system - Google Patents
A kind of single supply 12V/24V BMS accessory power supply switching system Download PDFInfo
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- CN208862630U CN208862630U CN201821447227.0U CN201821447227U CN208862630U CN 208862630 U CN208862630 U CN 208862630U CN 201821447227 U CN201821447227 U CN 201821447227U CN 208862630 U CN208862630 U CN 208862630U
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- power supply
- accessory power
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a kind of single supply 12V/24V BMS accessory power supply switching system, including direct-current charging post and electric car, electric car includes vehicle control device, direct-current charging post includes charging pile controller, 12V/24V compatible type accessory power supply, and accessory power supply relay, charging pile controller includes optocoupler OT, AC input is connected to 12V/24V compatible type accessory power supply, 12V/24V compatible type accessory power supply connects optocoupler OT, 12V/24V compatible type accessory power supply connects accessory power supply relay, charging pile controller connects accessory power supply relay, accessory power supply relay connects the vehicle control device.Simple, low in energy consumption, at low cost, in saving machine the installation space of the circuit structure of the utility model reduces cabling, an accessory power supply can more importantly be saved, benefit is evident, in conjunction with the design in terms of man-machine interface, program, single supply can be used and realize the stabilization of 12V/24V BMS accessory power supply, reliable, safety switching and use.
Description
Technical field
The utility model relates to a kind of single supply 12V/24V BMS accessory power supply switching systems.
Background technique
In " GB/T18487.1-2015 electric car conduction charging system first part: General Requirement ", to for new
(also known as low pressure assists Vehicular battery management system (BMS) accessory power supply that the direct-current charging post of energy electric vehicle charging provides
Power supply, be connected to the end A+, A-) requirement are as follows: 12V/10A.But in practical application, the BMS accessory power supply of part new-energy automobile
For on 24V/10A, especially bus (also known as commercial vehicle), the use of the BMS accessory power supply of 24V is more universal.Therefore for straight
For current charge stake, the BMS accessory power supply of compatible 12V/24V is very common.
It is used to meet the compatible of BMS accessory power supply of above-mentioned 12V/24V, the practices well of general charging pile is to install
Two accessory power supplys (that is: each one of 12V, 24V accessory power supply) require according to the BMS accessory power supply voltage of vehicle when in use
Selection uses.
General two accessory power supplys of charging pile use and (use each 1 of 12V, 24V accessory power supply), according to the vehicle of user
BMS accessory power supply voltage selects 12V or 24V when operation, controls a single-pole double-throw relay, selection by charging pile controller
Corresponding 12V accessory power supply or 24V accessory power supply come into operation.This use, i.e., the use of two accessory power supplys, will lead to
The problems such as power consumption is big, at high cost, and occupied space is big, and cabling is complicated, and control is difficult.
The above deficiency, has much room for improvement.
Utility model content
In order to overcome the shortcomings of existing technology, the utility model provides a kind of single supply 12V/24V BMS accessory power supply
Switching system.
Technical solutions of the utility model are as described below:
A kind of single supply 12V/24V BMS accessory power supply switching system, including direct-current charging post and electric car, the electricity
Electrical automobile includes vehicle control device,
The direct-current charging post includes charging pile controller, 12V/24V compatible type accessory power supply and accessory power supply relay
Device, the charging pile controller include optocoupler OT,
AC input is connected to the 12V/24V compatible type accessory power supply, the 12V/24V compatible type accessory power supply
The optocoupler OT is connected, the 12V/24V compatible type accessory power supply connects the accessory power supply relay, the charging pile control
Device connects the accessory power supply relay, and the accessory power supply relay connects the vehicle control device.
Further, the optocoupler OT includes the first foot, crus secunda, third foot and the 4th foot, first foot and described
Crus secunda is connect with the charging pile controller, and the third foot is connect with the 12V/24V compatible type accessory power supply, described
4th foot is connect with the end CTR of the 12V/24V compatible type accessory power supply.
Further, the accessory power supply relay includes the first accessory power supply relay K3 and the second accessory power supply relay
Device K4；
The anode of the output end of the 12V/24V compatible type accessory power supply connects with one end of the first accessory power supply relay K3
It connects, the other end of the first accessory power supply relay K3 and the anode of vehicle interface connect；
One end of the cathode of the output end of the 12V/24V compatible type accessory power supply and the second accessory power supply relay K4 connect
It connects, the other end of the second accessory power supply relay K4 and the cathode of vehicle interface connect.
According to the utility model of above scheme, the beneficial effect is that: the circuit structure of the utility model is simple, power consumption
Installation space low, at low cost, in saving machine reduces cabling, it is often more important that can save an accessory power supply, benefit is bright
It is aobvious, in conjunction with the design in terms of man-machine interface, program, can be used single supply realize 12V/24V BMS accessory power supply stabilization, can
It leans on, the switching and use of safety.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new
Some embodiments of type for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
In order to which technical problem to be solved in the utility model, technical solution and beneficial effect is more clearly understood, with
Lower combination accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein
Example is applied only to explain the utility model, is not used to limit the utility model.
It should be noted that it can be directly to when an element is known as " being connected to " another element
Another element is indirectly connected on another element.In addition, term " first ", " second " are used for description purposes only, and
It cannot be understood as indicating or implying relative importance or implicitly indicate the quantity of indicated technical characteristic.It defines as a result,
The feature of " first ", " second " can explicitly or implicitly include one or more of the features.
Referring to Fig. 1, a kind of single supply 12V/24V BMS accessory power supply switching system, including direct-current charging post and electronic
Automobile, electric car include vehicle control device, direct-current charging post include charging pile controller, 12V/24V compatible type accessory power supply,
And accessory power supply relay, charging pile controller include optocoupler OT, AC input is connected to 12V/24V compatible type auxiliary
Power supply, 12V/24V compatible type accessory power supply connect optocoupler OT, and 12V/24V compatible type accessory power supply connects accessory power supply relay,
Charging pile controller connects accessory power supply relay, and accessory power supply relay connects vehicle control device.
Preferably, optocoupler OT includes the first foot, crus secunda, third foot and the 4th foot, the first foot and crus secunda with charging
Stake controller connection, third foot are connect with 12V/24V compatible type accessory power supply, the 4th foot and 12V/24V compatible type accessory power supply
The end CTR connection.
Preferably, accessory power supply relay includes the first accessory power supply relay K3 and the second accessory power supply relay K4；
The anode of the output end of 12V/24V compatible type accessory power supply is connect with one end of the first accessory power supply relay K3,
The other end of first accessory power supply relay K3 and the anode of vehicle interface connect；
The cathode of the output end of 12V/24V compatible type accessory power supply is connect with one end of the second accessory power supply relay K4,
The other end of second accessory power supply relay K4 and the cathode of vehicle interface connect.
Single supply 12V/24V BMS accessory power supply switching system workflow and principle provided in this embodiment are as follows:
When user card punching or barcode scanning open charging, charge system can be in man-machine interface text and verbal cue: please select
BMS accessory power supply: 12V or 24V is selected, after selecting BMS accessory power supply voltage, language prompts again: the auxiliary electricity currently selected
Source voltage is 12V, alternatively, the accessory power supply voltage currently selected is 24V；
After being confirmed, if it is 12V, charge system chip control that the BMS accessory power supply voltage of electric car, which is selection,
The optocoupler OT of charging pile controller processed is not turned on, and the end CTR of 12V/24V compatible type accessory power supply is high resistant, and the end CTR is high electricity
Flat, power source internal single-chip microcontroller exports 12V accessory power supply according to the high level at the end CTR；
It is 24V, charge system chip controls charging pile controller if the BMS accessory power supply voltage of electric car is selection
Optocoupler OT conducting, the end CTR of 12V/24V compatible type accessory power supply is low-resistance, the end CTR voltage pull-down, power source internal single-chip microcontroller
According to the low-resistance at the end CTR, low level signal, the pwm signal of power supply is adjusted, exports 24V accessory power supply；
Selection, the adjustment of 12V/24V accessory power supply, are in the first accessory power supply relay K3, the second accessory power supply relay
It is completed before device K4 relay is not closed, therefore does not interfere with the accessory power supply normal use at the end electric car A+, A-.
The selection of BMS accessory power supply be it is very rigorous, the selection such as BMS accessory power supply voltage is improper, will cause vehicle
The damage risk of BMS.Such as the accessory power supply voltage of 12V should be selected, and falsely dropped as 24V, then BMS internal circuit may be by
It is damaged in receiving overtension；Conversely, should for example select the accessory power supply voltage of 24V, and falsely dropped as 12V, then inside BMS
Circuit supply current will increase, and have the risk for burning out BMS power supply protective tube.
Thus it is necessary to operationally prompt, confirm the work of aspect, including
Step 1: it swipes the card, starting charging；
Step 2: selection vehicle BMS accessory power supply voltage；
Step 3: plugging in rifle, carry out the confirmation of CC1 voltage；
Step 4: electronic lock locks；
Step 5: closure accessory power supply relay (K3, K4).
In step 2, vehicle BMS accessory power supply voltage need to do secondary prompt, firstly, voice and text prompt, " please select
Select accessory power supply voltage ", user select and then it is secondary prompt " the accessory power supply voltage that you currently select be 12V or you currently
The accessory power supply voltage selected is 24V ", please be reaffirmed.To ensure that the accessory power supply voltage of user's selection is correct.
Single supply 12V/24V BMS accessory power supply switching system provided in this embodiment has the beneficial effect that this is practical new
The circuit structure of type is simple, and installation space low in energy consumption, at low cost, in saving machine reduces cabling, it is often more important that can save
One accessory power supply, benefit is evident, in conjunction with the design in terms of man-machine interface, program, single supply can be used and realize 12V/24V
The stabilization of BMS accessory power supply, reliable, safety switching and use.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (3)
1. a kind of single supply 12V/24V BMS accessory power supply switching system, it is characterised in that: including direct-current charging post and electronic vapour
Vehicle, the electric car include vehicle control device,
The direct-current charging post includes charging pile controller, 12V/24V compatible type accessory power supply and accessory power supply relay,
The charging pile controller includes optocoupler OT,
AC input is connected to the 12V/24V compatible type accessory power supply, the 12V/24V compatible type accessory power supply connection
The optocoupler OT, the 12V/24V compatible type accessory power supply connect the accessory power supply relay, and the charging pile controller connects
The accessory power supply relay is connect, the accessory power supply relay connects the vehicle control device.
2. single supply 12V/24V BMS accessory power supply switching system as described in claim 1, it is characterised in that: the optocoupler
OT includes the first foot, crus secunda, third foot and the 4th foot, first foot and the crus secunda with the charging pile controller
Connection, the third foot are connect with the 12V/24V compatible type accessory power supply, the 4th foot and the 12V/24V compatible type
The end CTR of accessory power supply connects.
3. single supply 12V/24V BMS accessory power supply switching system as claimed in claim 2, it is characterised in that:
The accessory power supply relay includes the first accessory power supply relay K3 and the second accessory power supply relay K4；
The anode of the output end of the 12V/24V compatible type accessory power supply is connect with one end of the first accessory power supply relay K3,
The other end of the first accessory power supply relay K3 and the anode of vehicle interface connect；
The cathode of the output end of the 12V/24V compatible type accessory power supply is connect with one end of the second accessory power supply relay K4,
The other end of the second accessory power supply relay K4 and the cathode of vehicle interface connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821447227.0U CN208862630U (en) | 2018-09-05 | 2018-09-05 | A kind of single supply 12V/24V BMS accessory power supply switching system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821447227.0U CN208862630U (en) | 2018-09-05 | 2018-09-05 | A kind of single supply 12V/24V BMS accessory power supply switching system |
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| Publication Number | Publication Date |
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| CN208862630U true CN208862630U (en) | 2019-05-14 |
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| CN201821447227.0U Active CN208862630U (en) | 2018-09-05 | 2018-09-05 | A kind of single supply 12V/24V BMS accessory power supply switching system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110385994A (en) * | 2019-06-10 | 2019-10-29 | 特瓦特能源科技有限公司 | Low-voltage power supply control method, device, storage medium and electronic equipment |
| CN112769174A (en) * | 2020-12-28 | 2021-05-07 | 山东鲁能软件技术有限公司智能电气分公司 | Auxiliary power supply for off-board charging motor and method thereof |
| CN113895274A (en) * | 2021-10-19 | 2022-01-07 | 国网山东省电力公司临沂供电公司 | Fill electric pile auxiliary power automatic switching control equipment |
-
2018
- 2018-09-05 CN CN201821447227.0U patent/CN208862630U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110385994A (en) * | 2019-06-10 | 2019-10-29 | 特瓦特能源科技有限公司 | Low-voltage power supply control method, device, storage medium and electronic equipment |
| CN112769174A (en) * | 2020-12-28 | 2021-05-07 | 山东鲁能软件技术有限公司智能电气分公司 | Auxiliary power supply for off-board charging motor and method thereof |
| CN113895274A (en) * | 2021-10-19 | 2022-01-07 | 国网山东省电力公司临沂供电公司 | Fill electric pile auxiliary power automatic switching control equipment |
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