CN211844151U - BDU assembly and vehicle integrate - Google Patents
BDU assembly and vehicle integrate Download PDFInfo
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- CN211844151U CN211844151U CN201921863142.5U CN201921863142U CN211844151U CN 211844151 U CN211844151 U CN 211844151U CN 201921863142 U CN201921863142 U CN 201921863142U CN 211844151 U CN211844151 U CN 211844151U
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Abstract
The utility model discloses a BDU assembly integrates, BDU assembly integrates includes: the device comprises a battery management unit, a current-voltage sensor CVS, a positive electrode discharge control circuit and a positive electrode charge control circuit; the negative relay is electrically connected with the negative electrode of the load and the negative electrode of the charging power supply, the positive electrode of the current-voltage sensor is electrically connected with the negative relay, and the negative electrode of the current-voltage sensor is electrically connected with the negative electrode of the battery pack; the positive electrode of the positive electrode discharge control circuit is electrically connected with the positive electrode of the battery pack and the positive electrode of the positive electrode charge control circuit, the positive electrode of the positive electrode discharge control circuit is also in communication connection with the current and voltage sensor, and the negative electrode of the positive electrode discharge control circuit is electrically connected with the positive electrode of the load; the positive pole of the positive pole charging control circuit is also in communication connection with the current and voltage sensor, and the negative pole of the positive pole charging control circuit is electrically connected with the positive pole of the charging power supply. The integrated BDU assembly reduces the overall cost of the BDU, the BMU and the CVS.
Description
Technical Field
The utility model relates to a battery management field, concretely relates to BDU assembly integrates.
Background
Under the strong support of the country in the past few years, the new energy automobile industry develops rapidly, and while the new energy automobile industry develops rapidly, a three-electric system (a battery, a motor and an electric control system) faces the problem of higher cost, particularly, the cost of the battery is higher, and meanwhile, the cost bears greater pressure along with the reduction and cancellation of subsidies. As is well known, a Battery System includes a case, a module, a liquid cooling System, a Battery Management System (BMS), a high voltage connection System, a low voltage connection System, and the like. The BMS is composed of a high voltage control Unit (BDU), a Battery Management Unit (BMU), a Current Voltage Sensor (CVS), and a cell monitoring circuit (CSC), and most of the existing designs are designed for each module individually, which increases the production, test, and maintenance costs.
Most of the existing design schemes adopt a design mode that a high-voltage control box, a battery management unit and a current and voltage sampling module are independently separated, and design, manufacture and management and control are carried out by different manufacturers, so that allowances are reserved on respective designs, the space in a battery pack is wasted, meanwhile, the connection length of a wire harness is increased, the whole-pack wire harness switching plug-in is increased, and meanwhile, a sharable shell part not only increases the cost of a mold, but also increases the weight of the whole pack. With the development of new energy vehicles, it is imperative to improve the safety of battery pack systems and reduce the cost of products. Therefore, it is highly desirable to provide a technical solution for an integrated BDU assembly, which can reduce the production cost and improve the system security.
SUMMERY OF THE UTILITY MODEL
For solving the problem that exists among the prior art, the utility model provides an integrate BDU assembly, include: the device comprises a current and voltage sensor, a positive electrode discharge control circuit and a positive electrode charge control circuit;
the positive electrode of the current-voltage sensor is electrically connected with the negative electrode of the load and the negative electrode of the charging power supply, and the negative electrode of the current-voltage sensor is electrically connected with the negative electrode of the battery pack;
the positive electrode of the positive electrode discharge control circuit is electrically connected with the positive electrode of the battery pack and the positive electrode of the positive electrode charge control circuit, the positive electrode of the positive electrode discharge control circuit is also in communication connection with the current and voltage sensor, and the negative electrode of the positive electrode discharge control circuit is electrically connected with the positive electrode of the load;
the anode of the anode charging control circuit is also in communication connection with the current and voltage sensor, and the cathode of the anode charging control circuit is electrically connected with the anode of the charging power supply;
the current and voltage sensor is also in communication connection with the negative electrode of the positive electrode discharge control circuit and the negative electrode of the positive electrode charge control circuit.
Further, the positive electrode discharge control circuit includes: the device comprises a first relay, a second relay and a first pre-charging resistor;
correspondingly, one end of the first relay is electrically connected with the positive electrode of the battery pack, one end of the second relay and the positive electrode of the positive electrode charging control circuit, and one end of the first relay is also in communication connection with the current and voltage sensor;
the other end of the second relay is electrically connected with one end of the first pre-charging resistor, the other end of the first pre-charging resistor is electrically connected with the other end of the first relay and the positive electrode of the load, and the current and voltage sensor is in communication connection with the other end of the first pre-charging resistor.
Further, the positive electrode charge control circuit includes: the third relay, the fourth relay and the second pre-charging resistor;
correspondingly, one end of the third relay is electrically connected with the positive electrode of the battery pack, one end of the fourth relay, one end of the first relay and one end of the second relay, and one end of the third relay is also in communication connection with the current and voltage sensor;
the other end of the fourth relay is electrically connected with one end of the second pre-charging resistor, the other end of the second pre-charging resistor is electrically connected with the other end of the third relay and the positive electrode of the charging power supply, and the current and voltage sensor is in communication connection with the other end of the first pre-charging resistor.
Further, a fifth relay is also included; one end of the fifth relay is electrically connected with the positive electrode of the current-voltage sensor, and the other end of the fifth relay is electrically connected with the negative electrode of the load and the negative electrode of the charging power supply.
And the other end of the fifth relay is also in communication connection with the current and voltage sensor.
Further, the battery management unit is also included; and the battery management unit is in communication connection with the current and voltage sensor and the battery pack working state detection circuit.
Further, the battery pack operating state detection circuit communication connection further includes: a plurality of groups of battery cell detection circuits in communication connection;
the battery pack includes: a plurality of groups of battery packs connected in series; the battery cell detection circuits are electrically connected with the battery packs in a one-to-one correspondence manner.
Further, the battery pack further includes: and two ends of the manual maintenance switch are respectively and electrically connected with the battery pack.
Furthermore, the communication connection mode is daisy chain mode communication connection.
On the other hand the utility model provides a vehicle, the vehicle is provided with power supply system, power supply system includes any one of the aforesaid integrated BDU assembly.
Implement the utility model discloses following beneficial effect has:
the utility model provides a brand-new detection circuitry framework and calculation method, measuring voltage adopts the voltage reference point to be the high-pressure negative pole. The insulation detection scheme can be integrated on a module with the current high-voltage acquisition function without additionally increasing isolation. The system is safer with low cost.
1. The integrated BDU assembly reduces the overall cost of the BDU, the BMU and the CVS, has high integration level and small volume, and is beneficial to platform development;
2. modules needing to be developed in the battery pack are reduced, the whole pack development difficulty is reduced, and the development cost and the module control cost are reduced;
3. the utility model discloses reduce mounting screw, connecting wire and connector and extra shell, solve present each module distribution and arrange cost problem, installation space problem, the weight problem of bringing for the lightweight of battery package system reduces the vehicle consumption.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a block diagram illustrating an integrated BDU assembly according to this embodiment;
FIG. 2 is a schematic structural diagram of another integrated BDU assembly provided in this embodiment;
wherein: 1-battery pack, 2-integrated BDU assembly, 3-load, 4-charging power supply, 5-battery cell detection circuit, 21-current and voltage sensor, 22-positive electrode discharge control circuit, 23-positive electrode charging control circuit, 24-battery management unit, 25-fifth relay, 211-first relay, 212-second relay, 213-first pre-charging resistor, 221-third relay, 222-fourth relay, 223-second pre-charging resistor.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
It should be noted that when an element is referred to as being "electrically connected" to another element, it can be electrically connected or communicatively connected.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
Fig. 1 is the block diagram of the structure of an integrated BDU assembly that this embodiment provided, as shown in fig. 1, the utility model provides an integrated BDU assembly, include: the device comprises a current and voltage sensor, a positive electrode discharge control circuit and a positive electrode charge control circuit;
the positive electrode of the current-voltage sensor is electrically connected with the negative electrode of the load and the negative electrode of the charging power supply, and the negative electrode of the current-voltage sensor is electrically connected with the negative electrode of the battery pack;
the positive electrode of the positive electrode discharge control circuit is electrically connected with the positive electrode of the battery pack and the positive electrode of the positive electrode charge control circuit, the positive electrode of the positive electrode discharge control circuit is also in communication connection with the current and voltage sensor, and the negative electrode of the positive electrode discharge control circuit is electrically connected with the positive electrode of the load;
the anode of the anode charging control circuit is also in communication connection with the current and voltage sensor, and the cathode of the anode charging control circuit is electrically connected with the anode of the charging power supply;
the current and voltage sensor is also in communication connection with the negative electrode of the positive electrode discharge control circuit and the negative electrode of the positive electrode charge control circuit.
Specifically, the battery pack may be composed of a plurality of battery packs connected in series, and the battery pack may be composed of a plurality of single batteries, and voltage values of the single batteries are not specifically limited in the embodiments of the present specification and may be set according to actual needs.
The integrated BDU assembly may be an integrated circuit board. The integrated BDU assembly may include: the device comprises a current and voltage sensor, a positive electrode discharge control circuit and a positive electrode charge control circuit. The positive electrode of the current-voltage sensor is electrically connected with the negative electrode of the load and the negative electrode of the charging power supply, and the negative electrode of the current-voltage sensor is electrically connected with the negative electrode of the battery pack;
the positive electrode of the positive electrode discharge control circuit is electrically connected with the positive electrode of the battery pack and the positive electrode of the positive electrode charge control circuit, the positive electrode of the positive electrode discharge control circuit is also in communication connection with the current and voltage sensor, and the negative electrode of the positive electrode discharge control circuit is electrically connected with the positive electrode of the load;
the anode of the anode charging control circuit is also in communication connection with the current and voltage sensor, and the cathode of the anode charging control circuit is electrically connected with the anode of the charging power supply;
the current and voltage sensor is also in communication connection with the negative electrode of the positive electrode discharge control circuit and the negative electrode of the positive electrode charge control circuit.
The current and voltage sensor can be used for collecting parameters of current and voltage when the battery pack is discharged or charged.
The integrated CVS and BMU that will originally independent BDU in with the BMS are in the same place, make an assembly, and original design scheme is with BMS, CVS, BDU separately design, management and control, production, and each part design allowance is big, and the matching degree is low, causes the cost to be high or not down, with BMU, CVS, BDU centralized design, multiplicable matching degree eliminates the design allowance, from the design reduce cost. The CVS and the BMU are integrated on the same PCB, so that a set of single chip microcomputer and a set of power supply are required originally, and a set of power supply and an MCU system can be omitted from the integrated product, thereby reducing the BOM cost of the product and reducing the power consumption. The shell originally required by the BMU and the CVS is integrated in the BDU, so that an independent shell is not required, the plastic shell of the BDU is shared, and the cost and the space are reduced. Because the high-voltage components are integrated and arranged in the device, the leakage of the high-voltage components is reduced, and the system is safer and more reliable.
On the basis of the above embodiments, in an embodiment of the present specification, the positive electrode discharge control circuit includes: the device comprises a first relay, a second relay and a first pre-charging resistor;
correspondingly, one end of the first relay is electrically connected with the positive electrode of the battery pack, one end of the second relay and the positive electrode of the positive electrode charging control circuit, and one end of the first relay is also in communication connection with the current and voltage sensor;
the other end of the second relay is electrically connected with one end of the first pre-charging resistor, the other end of the first pre-charging resistor is electrically connected with the other end of the first relay and the positive electrode of the load, and the current and voltage sensor is in communication connection with the other end of the first pre-charging resistor.
Specifically, working parameters of the first relay, the second relay and the first pre-charging resistor may be set according to actual needs, and are not specifically limited in the embodiment of the present specification.
The CVS may be used to detect the opening or closing of the first relay or the second relay and the operating state of the battery pack.
Illustratively, when the battery pack discharges during operation, the battery pack charges through the vehicle-mounted charger or the battery pack charges the vehicle-mounted storage battery, the second relay is closed and the first relay is opened at the same time within the preset first time of discharging or charging, and the second relay is opened and the first relay is opened at the same time after the preset first time.
The first relay and the second relay which are connected in parallel can ensure that the device of the integrated battery management system is damaged due to overlarge current value of the battery pack at the working moment.
On the basis of the foregoing embodiments, in an embodiment of the present disclosure, as shown in fig. 2, fig. 2 is another integrated BDU assembly provided in this embodiment, where the positive charging control circuit includes: the third relay, the fourth relay and the second pre-charging resistor;
correspondingly, one end of the third relay is electrically connected with the positive electrode of the battery pack, one end of the fourth relay, one end of the first relay and one end of the second relay, and one end of the third relay is also in communication connection with the current and voltage sensor;
the other end of the fourth relay is electrically connected with one end of the second pre-charging resistor, the other end of the second pre-charging resistor is electrically connected with the other end of the third relay and the positive electrode of the charging power supply, and the current and voltage sensor is in communication connection with the other end of the first pre-charging resistor.
Specifically, working parameters of the third relay, the fourth relay and the second pre-charge resistor may be set according to actual needs, and are not specifically limited in the embodiment of the present specification.
The CVS may be used to detect the opening or closing of the third relay or the fourth relay and the operating state of the battery pack.
Illustratively, when the battery pack is charged rapidly through an external direct current charger, the second relay is closed and the third relay is opened simultaneously within the preset second discharging time, and the fourth relay is opened and the first relay is opened simultaneously after the preset second discharging time. Wherein the preset first time and the preset second time may be the same or different.
The third relay and the fourth relay which are connected in parallel can ensure that the components of the integrated battery management system are damaged due to overlarge current value at the working moment of the battery pack.
On the basis of the above embodiments, in an embodiment of the present specification, the integrated BDU assembly further includes a fifth relay; one end of the fifth relay is electrically connected with the positive electrode of the current-voltage sensor, and the other end of the fifth relay is electrically connected with the negative electrode of the load and the negative electrode of the charging power supply.
Specifically, the integrated BDU assembly may further include a fifth relay, where an operating parameter of the fifth relay is not specifically limited in the embodiment of this specification, and may be set according to an actual need.
On the basis of the above embodiments, in an embodiment of the present specification, the other end of the fifth relay is further connected to the current-voltage sensor in a communication manner.
Specifically, the CVS may be used to detect the opening or closing of the fifth relay and the operating state of the battery pack.
The utility model discloses set up the discharge or charge that fifth relay realized control battery package, improve the security of battery package.
On the basis of the above embodiments, in an embodiment of the present specification, the method further includes: a plurality of groups of battery cell detection circuits in communication connection;
the battery pack includes: a plurality of groups of battery packs connected in series; the battery cell detection circuits are electrically connected with the battery packs in a one-to-one correspondence manner.
Specifically, the plurality of cell detection circuits are sequentially connected in a daisy chain manner, wherein the last cell detection circuit coupled is further coupled to the CVS. And the quantity of electric core detection circuit is the same with the quantity of group battery, and an electric core detection circuit corresponds a group battery and couples. The battery cell detection circuit can be used for acquiring the working state of the battery pack, and the working state comprises the working voltage, the working current and the working temperature of the battery pack.
The cell detection circuit may be configured to detect whether a voltage deviation of the corresponding battery pack remains within an expected range. And if the voltage deviation is exceeded, reminding a user to charge the battery pack. The cell detection circuit may be coupled above the battery pack through a nickel plate, wherein the cell detection circuit may include a voltage acquisition circuit including the battery monitor MAX17823 and a temperature acquisition circuit which may use but is not limited to NTC.
The CSC is integrated with the battery instead of being hung in the battery pack, and the CSC is connected with the battery through a nickel sheet instead of a wiring harness connection mode originally, so that the cost of a long lead is reduced, and the safety protection required by the lead is omitted. The CSC is arranged in the battery module, so that a CSC shell is omitted, and the installation space of the CSC is also omitted for a battery pack. The reduced wire harness and the reduced shell can reduce the weight of the battery pack, meet the requirement of light weight of the vehicle and reduce the power consumption of the vehicle.
On the basis of the above embodiments, in an embodiment of the present specification, the integrated BDU assembly further includes a battery management unit; and the battery management unit is in communication connection with the current and voltage sensor and the battery core detection circuit.
Specifically, the integrated BDU assembly may further include a battery management unit, and the battery management unit may be in communication connection with the current-voltage sensor and the cell detection circuit. The battery management unit may be used to improve the utilization of the battery and prevent overcharge and overdischarge of the battery.
On the basis of the above embodiment, in an embodiment of the present specification, the battery pack further includes: and two ends of the manual maintenance switch are respectively and electrically connected with the battery pack.
Specifically, the battery pack may further include: at least one manual service switch. The manual maintenance switch can be arranged in the middle of the battery pack, namely, equal battery packs are arranged on two sides of the manual maintenance switch.
The utility model provides an integrate BDU assembly can realize when the battery package trouble through manual maintenance switch, and the operating condition of troubleshooting group battery improves the security one by one.
On the other hand the utility model provides a vehicle, the vehicle is provided with power supply system, power supply system includes any one of the aforesaid integrated BDU assembly. Because the vehicle is provided with integrates the BDU assembly, consequently has the effect of integrating the BDU assembly, does not give unnecessary details.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.
While embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications and changes may be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. An integrated BDU assembly, comprising: the device comprises a battery management unit, a current and voltage sensor, a positive electrode discharge control circuit and a positive electrode charge control circuit;
the positive electrode of the current-voltage sensor is electrically connected with the negative electrode relay, the negative electrode relays are electrically connected with the negative electrode of the load and the negative electrode of the charging power supply, and the negative electrode of the current-voltage sensor is electrically connected with the negative electrode of the battery pack;
the positive electrode of the positive electrode discharge control circuit is electrically connected with the positive electrode of the battery pack and the positive electrode of the positive electrode charge control circuit, the positive electrode of the positive electrode discharge control circuit is also in communication connection with the current and voltage sensor, and the negative electrode of the positive electrode discharge control circuit is electrically connected with the positive electrode of the load;
the anode of the anode charging control circuit is also in communication connection with the current and voltage sensor, and the cathode of the anode charging control circuit is electrically connected with the anode of the charging power supply;
the current and voltage sensor is also in communication connection with the negative electrode of the positive electrode discharge control circuit and the negative electrode of the positive electrode charge control circuit.
2. The integrated BDU assembly of claim 1, wherein the positive discharge control circuit comprises: the device comprises a first relay, a second relay and a first pre-charging resistor;
correspondingly, one end of the first relay is electrically connected with the positive electrode of the battery pack, one end of the second relay and the positive electrode of the positive electrode charging control circuit, and one end of the first relay is also in communication connection with the current and voltage sensor;
the other end of the second relay is electrically connected with one end of the first pre-charging resistor, the other end of the first pre-charging resistor is electrically connected with the other end of the first relay and the positive electrode of the load, and the current and voltage sensor is in communication connection with the other end of the first pre-charging resistor.
3. The integrated BDU assembly as recited in claim 2, wherein the positive charge control circuit comprises: the third relay, the fourth relay and the second pre-charging resistor;
correspondingly, one end of the third relay is electrically connected with the positive electrode of the battery pack, one end of the fourth relay, one end of the first relay and one end of the second relay, and one end of the third relay is also in communication connection with the current and voltage sensor;
the other end of the fourth relay is electrically connected with one end of the second pre-charging resistor, the other end of the second pre-charging resistor is electrically connected with the other end of the third relay and the positive electrode of the charging power supply, and the current and voltage sensor is in communication connection with the other end of the first pre-charging resistor.
4. The integrated BDU assembly of claim 1, further comprising a fifth relay; one end of the fifth relay is electrically connected with the positive electrode of the current-voltage sensor, and the other end of the fifth relay is electrically connected with the negative electrode of the load and the negative electrode of the charging power supply.
5. An integrated BDU assembly according to claim 4 wherein the other end of the fifth relay is also in communication with the current to voltage sensor.
6. The integrated BDU assembly of claim 5, further comprising a battery management unit; and the battery management unit is in communication connection with the current and voltage sensor and the battery pack working state detection circuit.
7. The integrated BDU assembly of claim 6, wherein the battery pack operational state detection circuit communicative coupling further comprises: a plurality of groups of battery cell detection circuits in communication connection;
the battery pack includes: a plurality of groups of battery packs connected in series; the battery cell detection circuits are electrically connected with the battery packs in a one-to-one correspondence manner.
8. The integrated BDU assembly of claim 7, wherein the battery pack further comprises: and two ends of the manual maintenance switch are respectively and electrically connected with the battery pack.
9. An integrated BDU assembly according to claim 7 and wherein said communication link is daisy chained.
10. A vehicle provided with a power supply system comprising an integrated BDU assembly as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921863142.5U CN211844151U (en) | 2019-10-31 | 2019-10-31 | BDU assembly and vehicle integrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921863142.5U CN211844151U (en) | 2019-10-31 | 2019-10-31 | BDU assembly and vehicle integrate |
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| CN211844151U true CN211844151U (en) | 2020-11-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112937307A (en) * | 2021-04-08 | 2021-06-11 | 南京市欣旺达新能源有限公司 | Battery package unit of opening circuit and electric automobile thereof |
| CN113043823A (en) * | 2021-03-30 | 2021-06-29 | 浙江吉利控股集团有限公司 | Battery package assembly and vehicle |
| WO2023229149A1 (en) * | 2022-05-25 | 2023-11-30 | 주식회사 엘지에너지솔루션 | Battery device and battery system comprising same |
-
2019
- 2019-10-31 CN CN201921863142.5U patent/CN211844151U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113043823A (en) * | 2021-03-30 | 2021-06-29 | 浙江吉利控股集团有限公司 | Battery package assembly and vehicle |
| CN112937307A (en) * | 2021-04-08 | 2021-06-11 | 南京市欣旺达新能源有限公司 | Battery package unit of opening circuit and electric automobile thereof |
| WO2023229149A1 (en) * | 2022-05-25 | 2023-11-30 | 주식회사 엘지에너지솔루션 | Battery device and battery system comprising same |
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Effective date of registration: 20230209 Address after: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District Patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Patentee after: Zhejiang liankong Technology Co.,Ltd. Address before: 315336 No. 198, Yinwan East Road, Hangzhou Bay New District, Ningbo, Zhejiang Province Patentee before: WEIRUI ELECTRIC AUTOMOBILE TECHNOLOGY (NINGBO) Co.,Ltd. |