CN216054877U - Battery management system controller - Google Patents
Battery management system controller Download PDFInfo
- Publication number
- CN216054877U CN216054877U CN202122189640.XU CN202122189640U CN216054877U CN 216054877 U CN216054877 U CN 216054877U CN 202122189640 U CN202122189640 U CN 202122189640U CN 216054877 U CN216054877 U CN 216054877U
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- China
- Prior art keywords
- management system
- system controller
- battery management
- protective layer
- bms
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model discloses a battery management system controller, which comprises a printed circuit board and a protective layer; wherein the protective layer is formed on the surface of the printed wiring board according to the shape of the printed wiring board for protecting the printed wiring board. According to the utility model, the printed circuit board of the BMS is protected in a protective layer mode, the protective layer is preferably a potting adhesive layer, the research and development cost, the research and development period and the manufacturing period of the product are effectively reduced, and the protective layer has sealing performance and heat dissipation performance and meets the related design requirements of the BMS; meanwhile, the overall thickness of the product is reduced to some extent, the development trend of miniaturization and light weight at present is met, and due to the small size and flexible size design, the requirements of battery installation packages of different vehicle types on BMS space occupation can be met, and the product applicability is wide; in addition, the product has simple preparation process and low integral manufacturing cost, and is suitable for being widely applied to various types of new energy electric vehicles.
Description
Technical Field
The utility model relates to the field of new energy electric vehicles, in particular to a battery management system controller.
Background
The battery management system controller (BMS) is widely applied to the field of new energy electric vehicles, and is mainly used for carrying out safety monitoring and effective management on a storage battery, improving the service efficiency of the storage battery, preventing the storage battery from being overcharged, overdischarged or overtemperature, and prolonging the service life of the storage battery.
The product structure of the BMS is as shown in fig. 1 and 2, and mainly comprises a plastic upper cover 1, a plug connector 2, a printed circuit board 3 and a plastic base plate 4, wherein the plastic upper cover 1 and the plastic base plate 4 are installed in a matching manner to form a housing of the BMS so as to protect the printed circuit board 3 and the plug connector 2 installed in the housing; in addition, still inlay in the plastics upper cover 1 and be equipped with metal bush 5 in order to prevent when installing BMS, too big installation pressure further causes the damage with plastics upper cover 1 destruction and to printed circuit board 3, and the embedding metal bush 5 can directly lead to the increase of thickness of plastics upper cover 1 in plastics upper cover 1, and then causes the whole thickness of the shell of BMS big, does not conform to the miniaturized and lightweight development direction of present new forms of energy electric motor car.
At present, the plastic upper cover and the plastic bottom plate of the BMS are molded by injection molding, a mold needs to be developed and designed in advance, the development cycle is long, the development cost is high, and after the development of the mold is completed, the shapes of the plastic upper cover and the plastic bottom plate are determined, namely, one set of mold only corresponds to a BMS shell with a specific shape; in addition, the specific mold also enables the sealing performance and the heat dissipation performance of the whole shell to be determined, and if the sealing performance and the heat dissipation performance need to be enhanced, a corresponding structure needs to be additionally added, and the development and manufacturing cost needs to be newly increased.
BMS generally installs in the battery package, and the arrangement space who reserves for BMS in the battery package of different motorcycle types is different, consequently, to different motorcycle types, needs the mould of the different plastics upper cover of development and plastic bottom plate, and this also can lead to BMS research and development and manufacturing cost height, and the cycle length of just making.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a battery management system controller which can effectively reduce the research and development cost and the manufacturing period of a BMS and has good sealing performance and heat dissipation; BMS overall dimension reduces, can be applied to different motorcycle types.
In order to solve the above technical problem, the present invention provides a battery management system controller, including:
a printed wiring board;
a protective layer for protecting the printed wiring board, the protective layer being formed on a surface of the printed wiring board in accordance with a shape of the printed wiring board;
preferably, the protective layer comprises a potting adhesive layer and a dam arranged around the periphery of the potting adhesive layer.
Preferably, the box dam is formed by solidification of box dam glue.
Preferably, the potting adhesive layer is formed by solidifying a heat-conducting potting adhesive.
Preferably, the printed wiring board is mounted with a connector to mount the battery management system controller within a battery pack.
Preferably, the connector is mounted to the printed wiring board by soldering or riveting.
Preferably, the connecting piece is a metal piece.
Preferably, the number of the connecting members is three.
Preferably, the printed wiring board is mounted with a plug connector for signal connection with the battery in the battery pack.
Preferably, the number of the plug-in connectors is four.
According to the utility model, the printed circuit board of the BMS is protected in a protective layer mode, the protective layer is preferably a potting adhesive layer, the research and development cost, the research and development period and the manufacturing period of the product are effectively reduced, and the protective layer has sealing performance and heat dissipation performance and meets the related design requirements of the BMS; meanwhile, the overall thickness of the product is reduced to some extent, the development trend of miniaturization and light weight at present is met, and due to the small size and flexible size design, the requirements of battery installation packages of different vehicle types on BMS space occupation can be met, and the product applicability is wide; in addition, the product has simple preparation process and low integral manufacturing cost, and is suitable for being widely applied to various types of new energy electric vehicles.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the present invention are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a prior art battery management system;
FIG. 2 is an exploded view of a prior art battery management system controller;
FIG. 3 is a schematic diagram of one embodiment of a battery management system of the present invention;
fig. 4 is an exploded view of an embodiment of a battery management system of the present invention.
Wherein, 1-plastic upper cover; 2-plug connector; 3-a printed wiring board; 4-a plastic base plate; 5-a metal bushing; 10-a printed wiring board; 20-a protective layer; 101-a connector; 102-a plug-in unit; 201-a box dam; 202-encapsulating glue layer.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 3 and 4, there is shown a battery management system controller of the present invention, comprising:
a printed wiring board 10;
a protective layer 20 for protecting the printed wiring board 10, the protective layer 20 being formed on the surface of the printed wiring board 10 in accordance with the shape of the printed wiring board 10; preferably, the protection layer 20 includes a potting adhesive layer 202 and a dam 201 surrounding the potting adhesive layer 202.
In the embodiment of the utility model, the protective layer 20 is formed on the front surface and the back surface of the printed circuit board 10 to replace a shell formed by a plastic upper cover and a plastic bottom plate in the traditional scheme, the protective layer 20 is generally formed by directly solidifying pouring sealant, so that the process of researching and developing a mould is omitted, the research and development cost is saved, and the research and development period is also reduced; after the BMS mounting space reserved in the battery pack is determined, only the shape of the printed circuit board 10 needs to be designed and the maximum thickness of the BMS needs to be calculated according to the mounting space, and after the printed circuit board 10 is prepared, the preparation process of the protective layer 20 is as follows: the method comprises the steps of spraying dam adhesive along the edge of the printed circuit board 10, directly adding pouring adhesive into the dam 201 to form a pouring adhesive layer 202 after the dam adhesive is solidified to form the dam 201, wherein the preparation flows of the protective layers 20 on the two sides of the printed circuit board 10 are the same, and it is noted that the total thickness of the finally prepared BMS structure is smaller than or equal to the calculated maximum thickness of the BMS, so that the method is simple and easy to obtain, and can be used for battery packs of different vehicle types; it should be noted that, the potting adhesive has excellent sealing performance, heat dissipation performance and chemical stability, and can play a good role in protecting and dissipating heat of the printed circuit board 10, in addition, the thickness of the BMS structure in the embodiment of the present invention is controllable, which conforms to the development trend of miniaturization and light weight in the future, generally speaking, the thickness of the potting adhesive only needs to be 0.5-2mm higher than each device on the printed circuit board 10, within the thickness range, the potting adhesive can play a good role in sealing and dissipating heat, and the total thickness of the BMS is far smaller than the total thickness of the BMS in the conventional technology.
Preferably, the potting adhesive layer 202 is formed by solidifying a heat-conducting potting adhesive. It should be noted that the dam and the potting adhesive in the embodiment of the present invention have good heat dissipation properties, and the heat conductivity coefficient thereof is much larger than that of air, but when the heat conductivity is more required, the present invention only needs the heat conductive potting adhesive with higher heat conductivity, and does not need to add other structures, and does not need additional research and development investment.
In a specific embodiment, the printed wiring board 10 is mounted with a connector 101 to mount the battery management system controller within a battery pack.
Preferably, the connector 101 is mounted to the printed wiring board 10 by soldering or riveting.
Preferably, the connecting member 101 is a metal member.
Preferably, the number of the connecting members 101 is three.
The connecting member 101 provided in the embodiment of the present invention has two main functions, one of which is a connecting function, that is, a BMS is mounted in a battery pack; the other is a pressure-resistant action to prevent damage to the printed wiring board 10 caused by excessive mounting pressure, which is the same as the metal bushing action in the conventional art. The connecting piece 101 is directly arranged on the printed circuit board 10, different from the traditional technology that the metal bush is embedded in the plastic upper cover, the path of transferring the mechanical load to the printed circuit board 10 in the vehicle driving process is shorter, at least the link of the plastic upper cover is omitted, and the resonance possibly generated by each structure in the mechanical load transferring process is favorably reduced, so that the printed circuit board 10 is favorably protected; the connecting piece 101 needs to have a function of bearing installation pressure, and needs to have high bearing strength, so that the connecting piece is preferably made of metal; according to the size of the printed circuit board 10 and the installation pressure during the installation process, the three connecting pieces 101 can play a good role in protection, and the printed circuit board 10 cannot be damaged during the installation process. In addition, since the connector 101 is directly mounted on the printed circuit board 10, the procedure of mounting the connector 101 and the printed circuit board 10 is generally performed before pouring the potting adhesive, that is, after mounting the connector 101 on the printed circuit board 10, the procedure of spraying the dam bar and pouring the potting adhesive is performed.
In one particular embodiment, the printed wiring board 10 is mounted with a plug 102 for signal connection to the battery within the battery pack. Preferably, the number of the plug connectors 102 is four. Understandably, since the connector 102 is directly mounted on the printed circuit board 10, the procedure of mounting the connector 102 and the printed circuit board 10 is generally performed before pouring the potting adhesive, i.e., after the connector 102 is mounted on the printed circuit board 10, the procedure of spraying the dam sealant and pouring the potting adhesive is performed.
In conclusion, the printed circuit board of the BMS is protected by the protective layer, the protective layer is preferably the potting adhesive layer, the research and development cost, the research and development period and the manufacturing period of the product are effectively reduced, and the sealing performance and the heat dissipation performance of the protective layer meet the related design requirements of the BMS; meanwhile, the overall thickness of the product is reduced to some extent, the development trend of miniaturization and light weight at present is met, and due to the small size and flexible size design, the requirements of battery installation packages of different vehicle types on BMS space occupation can be met, and the product applicability is wide; in addition, the product has simple preparation process and low integral manufacturing cost, and is suitable for being widely applied to various types of new energy electric vehicles.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A battery management system controller, comprising:
a printed wiring board;
and the protective layer is used for protecting the printed circuit board and is formed on the surface of the printed circuit board according to the shape of the printed circuit board.
2. The battery management system controller of claim 1, wherein the protective layer comprises a potting adhesive layer and a dam surrounding the periphery of the potting adhesive layer.
3. The battery management system controller of claim 2, wherein the dam is formed from a dam glue setting.
4. The battery management system controller of claim 2, wherein the layer of potting adhesive is formed from a thermally conductive potting adhesive cured.
5. The battery management system controller of claim 1, wherein the printed wiring board mounts a connector to mount the battery management system controller within a battery pack.
6. The battery management system controller of claim 5, wherein the connector is mounted to the printed wiring board by soldering or riveting.
7. The battery management system controller of claim 6, wherein the connector is a metallic piece.
8. The battery management system controller of claim 7, wherein the number of connectors is three.
9. The battery management system controller of claim 1, wherein the printed wiring board mounts a plug connector for signal connection with a battery in a battery pack.
10. The battery management system controller of claim 9, wherein the number of plug connectors is four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122189640.XU CN216054877U (en) | 2021-09-10 | 2021-09-10 | Battery management system controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122189640.XU CN216054877U (en) | 2021-09-10 | 2021-09-10 | Battery management system controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216054877U true CN216054877U (en) | 2022-03-15 |
Family
ID=80536531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122189640.XU Active CN216054877U (en) | 2021-09-10 | 2021-09-10 | Battery management system controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216054877U (en) |
-
2021
- 2021-09-10 CN CN202122189640.XU patent/CN216054877U/en active Active
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