CN219203642U

CN219203642U - BMS main control board and BDU integrated structure

Info

Publication number: CN219203642U
Application number: CN202223503834.3U
Authority: CN
Inventors: 魏艳彬; 刘学文
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-06-16
Anticipated expiration: 2032-12-26

Abstract

The utility model provides an integrated structure of a BMS main control board and a BDU, which comprises a BDU lower shell, the BDU arranged at the top of the BDU lower shell and the BMS main control board arranged at the bottom of the BDU lower shell; the bottom of the BDU lower shell is provided with a socket connected with the BDU, the BMS main control board is provided with a plug-in end, and the BMS main control board is connected with the BDU by inserting the socket through the plug-in end. The integrated structure of the BMS main control board and the BDU is characterized in that the socket connected with the BDU is formed at the bottom of the lower shell of the BDU, and the plugging end is formed on the BMS main control board, so that the plugging end is inserted into the socket or pulled out from the socket, the connection or disconnection between BMS main control board and BDU can be realized, connection structure is simple, convenient operation, and when withstand voltage test is carried out, the connection or disconnection between BMS main control board and BDU can be realized to once operation, does benefit to and promotes efficiency of software testing.

Description

BMS main control board and BDU integrated structure

Technical Field

The utility model relates to the technical field of battery parts, in particular to an integrated structure of a BMS main control board and a BDU.

Background

In order to save space, in the prior art, a BMS main control board is usually placed in a BDU, and the BMS main control board still adopts the existing connector plugging scheme, after the signals on the BMS board are connected with the opposite-end plug with the wire harness through the board-end socket, information is transmitted, connected and interacted with other parts inside and outside the BDU. However, the BMS main control board connector has a large volume and requires a certain operation space when being plugged in and plugged out, then this space needs to be reserved when carrying out integrated with BMS main control board and BDU, leads to BDU volume grow, and then causes the reduction of the space utilization in the package.

Moreover, because the BMS main control board is generally integrated with a high-voltage detection circuit, the withstand voltage of electronic components in the detection circuit is not very high, and the withstand voltage test voltage of the battery pack is relatively high, usually about 1800V-2700V, when in withstand voltage test, the BMS main control board needs to be disconnected from an external circuit, all external connectors need to be pulled out, and the BMS main control board connectors are usually multiple, so that the number of the connectors for plugging is large, and the test beat of the whole pack offline is influenced.

Disclosure of Invention

In view of this, the present utility model aims to provide an integrated structure of a BMS main control board and a BDU, so as to facilitate simplifying a connection form between the BMS main control board and the BDU.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

the integrated structure of the BMS main control board and the BDU comprises a BDU lower shell, the BDU arranged at the top of the BDU lower shell, and the BMS main control board arranged at the bottom of the BDU lower shell; the bottom of the BDU lower shell is provided with a socket connected with the BDU, the BMS main control board is provided with a plug-in end, and the BMS main control board is connected with the BDU through the plug-in end inserted into the socket.

Further, the BDU lower shell comprises a bottom plate and side plates arranged on the bottom plate, the BDU is arranged in a first installation space formed by the bottom plate and the side plates, a second installation space used for installing the BMS main control board is formed in the bottom plate, and the socket is located in the second installation space.

Further, a first stop block arranged along the length direction of the bottom plate and a second stop block arranged along the width direction of the bottom plate are arranged at two ends of the first stop block respectively, the first stop block is positioned at one side of the bottom plate along the width direction of the bottom plate, and the socket is formed on the first stop block; one side of the bottom plate, which is far away from the first stop block, is provided with a pressing piece, the pressing piece is used for pressing the BMS main control board into the socket, and the second installation space is formed between the first stop block, the pressing piece and the two second stop blocks.

Further, the plug-in end comprises a row of conductive contact pieces arranged on the BMS main control board, the socket comprises a slot arranged on the first stop block and a row of conductive terminals arranged in the slot and connected with the BDU; when the plug-in end is inserted into the slot, one row of conductive contact pieces is connected with one row of conductive terminals.

Further, an elastic clamping opening is formed in one end, connected with the conductive contact piece, of the conductive terminal, and the conductive contact piece can be inserted into the elastic clamping opening.

Further, the plugging ends are correspondingly arranged at the top and the bottom of the BMS main control board, and the two corresponding conductive contact pieces in the plugging ends are connected.

Further, be equipped with waterproof construction in the slot, waterproof construction is used for preventing the condensate water that forms on the BMS main control board leads to one row conductive contact and one row conductive terminal short circuit.

Furthermore, the compaction piece is provided with an embedded groove, and the BMS main control board is embedded in the embedded groove.

Further, a protective sheet for sealing the BMS main control board in the second installation space is arranged below the bottom plate.

Further, the protection piece is connected with the first stop block, the two second stop blocks and the pressing piece in an adhesive mode.

Compared with the prior art, the utility model has the following advantages:

according to the integrated structure of the BMS main control board and the BDU, the socket connected with the BDU is formed at the bottom of the lower shell of the BDU, and the plug-in end is formed on the BMS main control board, so that the connection or disconnection between the BMS main control board and the BDU can be realized by inserting the plug-in end into the socket or pulling out the plug-in end from the socket, the connection structure is simple, the operation is convenient, and the connection or disconnection between the BMS main control board and the BDU can be realized by one-time operation during the pressure-resistant test, thereby being beneficial to improving the test efficiency.

In addition, through be equipped with the elasticity centre gripping mouth at conductive terminal's one end that links to each other with conductive contact to make conductive contact can insert and locate in the elasticity centre gripping mouth, when can realizing being connected between BMS main control board and the BDU, also make the grafting structure of grafting end and jack-in groove comparatively simple, the size is less, is favorable to promoting the inside space utilization of battery package.

In addition, through being provided with waterproof construction, can prevent in the comdenstion water that forms on the BMS main control board gets into the slot.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 is a schematic structural diagram of a part of an integrated structure of a BMS main control board and a BDU according to an embodiment of the present utility model;

fig. 2 is an exploded part view of an integrated structure of a BMS main control board and a BDU according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a BMS main control board according to an embodiment of the present utility model;

FIG. 4 is an enlarged view of portion A of FIG. 3;

fig. 5 is a schematic structural diagram of an integrated structure of a BMS main control board and a BDU according to an embodiment of the present utility model.

Reference numerals illustrate:

1. a bottom plate; 2. a side plate; 3. a first stopper; 4. a second stopper; 5. a pressing member; 501. a caulking groove; 6. BMS master control board; 601. a conductive contact; 7. BDU; 8. a conductive terminal; 801. an elastic clamping opening; 9. a waterproof structure; 10. and a protective sheet.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be noted that, if terms indicating an orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. are presented, they are based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, if any, are also used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, in the description of the present utility model, the terms "mounted," "connected," and "connected," are to be construed broadly, unless otherwise specifically defined. For example, the connection can be fixed connection, detachable connection or integrated connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in combination with specific cases.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

This embodiment relates to an integrated configuration of BMS main control board and BDU, on whole constitution, this integrated configuration of BMS main control board and BDU includes BDU lower casing, locates BDU7 at BDU lower casing top to and locate the BMS main control board 6 of BDU lower casing bottom. And the bottom of the BDU lower shell is provided with a socket connected with the BDU7, the BMS main control board 6 is provided with a plug-in end, and the BMS main control board 6 and the BDU7 are inserted into the socket through the plug-in end to be connected.

Based on the above overall description, as a preferred embodiment, as shown in fig. 1 to 5, in this embodiment, the BDU lower housing includes a bottom plate 1, and a side plate 2 disposed on the bottom plate 1, the BDU7 is disposed in a first installation space formed by the bottom plate 1 and the side plate 2, and a second installation space for installing the BMS main control board 6 is formed in the bottom plate 1, and the socket is disposed in the second installation space. In particular, the BDU lower shell may be mounted horizontally or vertically depending on the installation requirements. Wherein, vertical installation indicates curb plate 2 and is located the bottom, and bottom plate 1 is vertical to be placed, and horizontal installation indicates that bottom plate 1 is located the bottom, and curb plate 2 is vertical to be placed.

As shown in fig. 1 and 2, the bottom of the base plate 1 is provided with a first stopper 3 arranged along the length direction of the base plate 1, and a second stopper 4 arranged along the width direction of the base plate 1, which is provided separately at both ends of the first stopper 3, the first stopper 3 being located at one side of the base plate 1 along the width direction of the base plate 1, and the socket being formed on the first stopper 3. One side of the bottom plate 1 far away from the first stop block 3 is provided with a pressing piece 5, the pressing piece 5 is used for pressing the BMS main control board 6 in the socket, and a second installation space is formed between the first stop block 3, the pressing piece 5 and the two second stop blocks 4.

After the plugging end of the BMS main control board 6 is inserted into the socket, the left and right second stoppers 4 can form a restriction on the left and right directions of the BMS main control board 6. In addition, as shown in fig. 2, the pressing member 5 is extended in a shape of a "table", and has both ends thereof low in height, while being connected with the left and right second stoppers 4, respectively, with the middle position thereof upwardly arched to avoid the BMS main control board 6. In a specific implementation, two ends of the pressing piece 5 can be respectively connected with the two second stop blocks 4 through bolts. And as also shown in fig. 2, a caulking groove 501 is provided on the pressing member 5, and the bms main control board 6 is seated in the caulking groove 501.

As shown in fig. 2 and 3, preferably, in this embodiment, the plugging terminal includes a row of conductive contacts 601 disposed on the BMS main control board 6, the socket includes a slot disposed on the first stop 3, and a row of conductive terminals 8 connected to the BDU7 disposed in the slot. When the plug-in terminal is inserted into the socket, a row of conductive contacts 601 is connected to a row of conductive terminals 8. The conductive terminals 8 can be connected with other devices or control boards in the BDU through FPC, FFC or wire harness and the like commonly used in the prior art, so that information connection interaction or control can be realized, and connection between the BMS main control board 6 and the BDU7 is realized.

In practice, the conductive terminals 8 may be designed with reference to the golden finger connectors commonly used in the art. As shown in fig. 3 and 4, an elastic clamping opening 801 is provided at one end of the conductive terminal 8 connected to the conductive contact 601, and the conductive contact 601 can be inserted into the elastic clamping opening 801. Thus, when the conductive contact 601 is inserted into the elastic clamping opening 801, connection between the BMS main control board 6 and the BDU7 can be realized, and after the conductive contact 601 is pulled out, the elastic clamping opening 801 can be restored to the opening size in a natural state, and deformation cannot occur due to repeated insertion and pulling. Therefore, the direct plug-in structure of the plug-in end and the slot is simpler, the size is smaller, and the space utilization rate in the battery pack is improved.

In addition, as shown in fig. 3 and 4, the plugging ends are two corresponding to the top and bottom of the BMS main control board 6, and two corresponding conductive contacts 601 in the two plugging ends are connected. Thus, the two conductive contacts 601 on both sides are respectively contacted with the two sidewalls of the elastic clamping opening 801. In addition, in the implementation, the plugging end is in an interference fit state with the elastic clamping opening 801 after being inserted into the elastic clamping opening 801, so that reliable contact connection is formed between the conductive contact 601 and the plugging end.

In order to prevent the condensation generated on the surface of the BMS main control board 6 from entering the slot, and causing a short circuit between the conductive terminals 8 and the conductive contacts 601, as a further preferred embodiment, a waterproof structure 9 is arranged in the slot, and the waterproof structure 9 is used for preventing the condensation formed on the BMS main control board 6 from causing a short circuit between a row of conductive contacts 601 and a row of conductive terminals 8. And as shown in fig. 1 and 2, the waterproof structure 9 may be a waterproof sealing ring disposed at the top of the socket, and the socket end is inserted into the socket after passing through the waterproof sealing ring, so that condensed water formed on the BMS main control board 6 can be prevented from entering the socket.

As shown in fig. 2 and 5, a protective sheet 10 for sealing the BMS main control board 6 in the second installation space is provided under the base plate 1. In specific implementation, the protection sheet 10 is adhesively connected with the first stop block 3, the two second stop blocks 4 and the pressing piece 5, so that the protection sheet 10, the first stop block 3 and the second stop block 4 can form a relatively airtight space in a surrounding manner, and the BMS main control board 6 can be protected.

Moreover, the protective sheet 10 can be selected from PC sheets commonly used in the prior art, and is easy to obtain and low in cost. And as shown in fig. 5, the protective sheet 10 is mounted so as not to exceed the height of the pressing member 5, thereby not affecting the assembly of the integrated structure of the BMS main control board and the BDU in the battery pack.

The integrated structure of BMS main control board and BDU of this embodiment is formed with the socket that links to each other with BDU7 through the bottom of casing under BDU to be formed with the grafting end on BMS main control board 6, then through inserting the grafting end in the socket or thereby pull out in the socket, can realize being connected or disconnection between BMS main control board 6 and the BDU7, connection structure is simple, convenient operation, when carrying out withstand voltage test, one time operation can realize being connected or disconnected between BMS main control board 6 and the BDU7, does benefit to and promotes efficiency of software testing.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. BMS main control board and BDU's integrated morphology, its characterized in that:

comprises a BDU lower shell, a BDU (7) arranged at the top of the BDU lower shell and a BMS main control board (6) arranged at the bottom of the BDU lower shell;

the bottom of the BDU lower shell is provided with a socket connected with the BDU (7), the BMS main control board (6) is provided with an inserting end, and the BMS main control board (6) is connected with the BDU (7) through the inserting end inserted into the socket.

2. The BMS master control board and BDU integrated structure according to claim 1, wherein:

the BDU lower shell comprises a bottom plate (1) and side plates (2) arranged on the bottom plate (1), the BDU (7) is arranged in a first installation space formed by the bottom plate (1) and the side plates (2), a second installation space used for installing the BMS main control board (6) is formed on the bottom plate (1), and the socket is arranged in the second installation space.

3. The BMS master control board and BDU integrated structure according to claim 2, wherein:

the bottom of the bottom plate (1) is provided with a first stop block (3) arranged along the length direction of the bottom plate (1), and second stop blocks (4) which are respectively arranged at two ends of the first stop block (3) and are arranged along the width direction of the bottom plate (1), the first stop block (3) is positioned at one side of the bottom plate (1) along the width direction of the bottom plate (1), and the socket is formed on the first stop block (3);

one side of the bottom plate (1) far away from the first stop block (3) is provided with a pressing piece (5), the pressing piece (5) is used for pressing the BMS main control board (6) in the socket, and the second installation space is formed between the first stop block (3), the pressing piece (5) and the two second stop blocks (4).

4. The BMS host board and BDU integrated structure according to claim 3, wherein:

the socket comprises a slot arranged on the first stop block (3) and a row of conductive terminals (8) arranged in the slot and connected with the BDU (7);

when the plug-in end is inserted into the slot, a row of conductive contact pieces (601) are connected with a row of conductive terminals (8).

5. The BMS host board and BDU integrated structure according to claim 4, wherein:

an elastic clamping opening (801) is formed in one end, connected with the conductive contact (601), of the conductive terminal (8), and the conductive contact (601) can be inserted into the elastic clamping opening (801).

6. The BMS host board and BDU integrated structure according to claim 4, wherein:

the plugging ends are correspondingly arranged at the top and the bottom of the BMS main control board (6), and the two corresponding conductive contact pieces (601) in the plugging ends are connected.

7. The BMS host board and BDU integrated structure according to claim 4, wherein:

be equipped with waterproof construction (9) in the slot, waterproof construction (9) are used for preventing condensation water that forms on BMS main control board (6) leads to one row conductive contact (601) and one row conductive terminal (8) short circuit.

8. The BMS host board and BDU integrated structure according to claim 3, wherein:

the compaction part (5) is provided with a caulking groove (501), and the BMS main control board (6) is embedded in the caulking groove (501).

9. The BMS main control board and BDU integrated structure according to any one of claims 3 to 8, wherein:

and a protective sheet (10) for sealing the BMS main control board (6) in the second installation space is arranged below the bottom plate (1).

10. The BMS host board and BDU integrated structure according to claim 9, wherein:

the protection sheet (10) is connected with the first stop block (3), the two second stop blocks (4) and the pressing piece (5) in an adhesive mode.