BDU and BMS fixing plate

Abstract

The utility model relates to the technical field of battery installation, in particular to a BDU and BMS fixing plate which comprises a plate body, a first pressing rivet screw and a second pressing rivet screw, a BDU installation position is arranged on the top face of one end of the plate body, a BMS installation position is arranged on the top face of the other end of the plate body, and the BDU installation position and the BMS installation position are coplanar. A plurality of first bulges are arranged on the BDU mounting position, one first pressing rivet screw is arranged at the top of each first bulge, and the first pressing rivet screws are used for fixing a BDU assembly; according to the BDU and BMS fixing plate provided by the utility model, the BDU mounting position and the BMS mounting position are arranged on the plate body, so that a BDU assembly, a BMS master controller and a BMS slave controller can be conveniently mounted on the same fixing plate, the problem that connecting cables of the BDU assembly, the BMS master controller and the BMS slave controller are mutually pulled in the later application process is avoided, protection of cable joints is facilitated, and the BDU assembly and the BMS master controller and the BMS slave controller are protected. The cable joint is not easy to loosen, and the use safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery installation, in particular to a fixing plate for BDU and BMS. Background Art

[0002] In the field of new energy vehicles, the battery pack is a core component for energy storage and supply, and its performance and safety are crucial. The battery management system (BMS) and the battery disconnect unit (BDU) in the battery pack are two key components. The BMS is responsible for monitoring and managing the state of the battery to prevent abnormal conditions such as over-discharge and over-charge of the battery, while the BDU is a protection module in the battery pack, which is responsible for coordinating the function conversion and energy distribution between the battery management system and other high-voltage accessories.

[0003] In the prior art, the BMS and BDU are arranged and fixed by arranging the BMS and BDU at different positions in the battery pack and fixing them through independent brackets or fixing parts, such as a BDU bracket and bracket assembly disclosed in CN218160705U.

[0004] In the above technical solution, the BMS and BDU are installed separately. In actual application, if one of the mounting brackets becomes loose, the wires between the BDU and the BMS are likely to be pulled, easily causing the cable joints to become loose or even fall off, leading to accidents. Summary of the Utility Model

[0005] In view of this, the utility model provides a fixing plate for BDU and BMS, which is provided with a BDU installation position and a BMS installation position on the plate body, facilitating the installation of the BDU assembly, the BMS main control and slave control on the same fixing plate, so that during the later application process of the BDU assembly and the BMS main control and slave control, the connecting cables will not be pulled against each other, which is beneficial to the protection of the cable joints, making the cable joints not easy to loosen and improving the use safety.

[0006] The technical solution of the utility model is realized as follows:

[0007] The utility model provides a fixing plate for BDU and BMS, including a plate body, and further including a first rivet screw and a second rivet screw, wherein,

[0008] A BDU installation position is arranged on the top surface at one end of the plate body, and a BMS installation position is arranged on the top surface at the other end, and the BDU installation position and the BMS installation position are coplanar;

[0009] A plurality of first protrusions are arranged on the BDU installation position, and a first rivet screw is arranged on the top of each first protrusion, and the first rivet screw is used to fix the BDU assembly;

[0010] A number of second protrusions are provided on the BMS installation position, and a second press rivet screw is provided on the top of each second protrusion. The second press rivet screw is used to fix the BMS main control and slave control;

[0011] A number of third protrusions are provided on the top surface of the plate body. A tie-rod installation hole is vertically penetrated through the third protrusion. The tie-rod installation hole is used to install a tie-rod to fix the wire harness and copper busbar.

[0012] On the basis of the above technical solutions, preferably, both the first press rivet screw and the second press rivet screw are vertically arranged.

[0013] On the basis of the above technical solutions, preferably, the first protrusion, the second protrusion and the third protrusion are all spherical shell-shaped protrusions.

[0014] On the basis of the above technical solutions, preferably, heat dissipation holes are provided on the BDU installation position and the BMS installation position, and the heat dissipation holes vertically penetrate the plate body.

[0015] On the basis of the above technical solutions, preferably, the edge on the right side of the plate body is turned up, and the other three edges are turned down.

[0016] On the basis of the above technical solutions, preferably, a number of first reinforcing ribs are provided on the top surface of the plate body, and the a number of first reinforcing ribs are arranged in a net shape.

[0017] On the basis of the above technical solutions, preferably, it further includes a first copper busbar bracket and a second copper busbar bracket, wherein,

[0018] The first copper busbar bracket is arranged on the BDU installation position;

[0019] The second copper busbar bracket is arranged on the BMS installation position.

[0020] On the basis of the above technical solutions, preferably, it further includes installation legs, wherein,

[0021] A number of the installation legs are provided at the edge of the bottom surface of the plate body.

[0022] On the basis of the above technical solutions, preferably, second reinforcing ribs are provided on the side of the installation leg.

[0023] On the basis of the above technical solutions, preferably, it further includes support legs, wherein,

[0024] One end of the support leg vertically penetrates the plate body to the lower part of the plate body, and the other end is arranged on the top surface of the plate body.

[0025] A BDU and BMS fixing plate of the present utility model has the following beneficial effects compared with the prior art:

[0026] (1) By providing a BDU installation position and a BMS installation position on the plate body, it is convenient to install the BDU assembly and the BMS master and slave controls on the same fixing plate, so that during the subsequent application process of the BDU assembly and the BMS master and slave controls, the connection cables will not be pulled against each other, which is beneficial to the protection of the cable joints, making the cable joints not easy to loosen and improving the use safety.

[0027] (2) By providing the first protrusion, the second protrusion and the heat dissipation holes, it is convenient to increase the installation height of the BDU assembly and the BMS master and slave controls, and facilitate the bottom heat dissipation of the BDU assembly and the BMS master and slave controls.

[0028] (3) By providing the third protrusion, it is convenient to increase the installation height of the cable tie and the copper busbar, so that the lower part of the cable tie is not likely to interfere with the components below the fixing plate, facilitating the subsequent installation and use of the fixing plate.

[0029] (4) By providing that the first protrusion, the second protrusion and the third protrusion are all spherical shell-shaped protrusions, and by providing the first reinforcing rib and the flanging, the bearing capacity and impact resistance of the fixing plate are improved, and it is not easy to deform after being put into application, which is beneficial to the protection of the BDU assembly and the BMS master and slave controls. Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0031] Figure 1 It is a three-dimensional view of a BDU and BMS fixing plate of the present utility model;

[0032] Figure 2 It is a three-dimensional view of another perspective of a BDU and BMS fixing plate of the present utility model;

[0033] In the figure: 1, plate body; 11, first press rivet screw; 12, second press rivet screw; 13, first copper busbar bracket; 14, second copper busbar bracket; 15, installation leg; 16, support leg; 101, BDU installation position; 102, BMS installation position; 103, first protrusion; 104, second protrusion; 105, third protrusion; 106, cable tie installation hole; 107, heat dissipation hole; 108, first reinforcing rib; 109, second reinforcing rib. Detailed Embodiments

[0034] Next, in combination with the specific embodiments of the present utility model, the technical solutions in the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0035] As Figure 1-2 shown, a BDU and BMS fixing plate of the present utility model includes a plate body 1, a first rivet screw 11 and a second rivet screw 12.

[0036] Among them, the plate body 1 is a sheet metal part in the shape of a rectangular thin plate. A BDU installation position 101 is provided on the top surface of one end, and a BMS installation position 102 is provided on the top surface of the other end. The BDU installation position 101 and the BMS installation position 102 are coplanar.

[0037] A number of first protrusions 103 are provided on the BDU installation position 101. A first rivet screw 11 is vertically arranged on the top of each first protrusion 103. The first rivet screw 11 is used to fix the BDU assembly. During installation, the first rivet screw 11 is inserted into the assembly hole of the BDU assembly, and then a nut is used to fasten the BDU assembly and the first rivet screw 11 together.

[0038] A number of second protrusions 104 are provided on the BMS installation position 102. A second rivet screw 12 is vertically arranged on the top of each second protrusion 104. The second rivet screw 12 is used to fix the BMS main control and slave control. During installation, some of the second rivet screws 12 are inserted into the assembly holes of the BMS main control, and then a nut is used to fasten the BMS main control and the second rivet screw 12 together. After that, the remaining second rivet screws 12 are inserted into the assembly holes of the BMS slave control, and then a nut is used to fasten the BMS slave control and the second rivet screw 12 together.

[0039] A number of third protrusions 105 are provided on the top surface of the plate body 1. A tie-rod installation hole 106 is vertically penetrated through the third protrusion 105. The tie-rod installation hole 106 is used to install a tie-rod to fix the wire harness and copper busbar. After installing the BDU assembly and the BMS main control and slave control, the BDU assembly and the BMS main control and slave control are connected through cables and copper busbars, and then a tie-rod is installed in the tie-rod installation hole 106 to fix the wire harness and copper busbar by the tie-rod to make the wire harness neat.

[0040] The above-mentioned first protrusion 103, second protrusion 104, and third protrusion 105 are all spherical shell-shaped protrusions, which are convenient to improve the structural strength of the plate body 1 through this shape. At the same time, the installation height of the BDU assembly, BMS main control, and slave control is increased through the first protrusion 103 and the second protrusion 104, facilitating the bottom heat dissipation of the BDU assembly, BMS main control, and slave control; the installation height of the cable tie and the copper bar is increased through the third protrusion 105, so that the lower part of the cable tie is not likely to interfere with the components below the fixing plate, facilitating the subsequent installation and use of the fixing plate.

[0041] To further improve the heat dissipation effect, heat dissipation holes 107 are provided on the BDU installation position 101 and the BMS installation position 102. The heat dissipation holes 107 penetrate the plate body 1 vertically, and their shape is square.

[0042] To further increase the structural strength of the plate body 1, the edge on the right side of the plate body 1 is turned up, and the other three edges are turned down. At the same time, a number of first reinforcing ribs 108 are provided on the top surface of the plate body 1, and the number of first reinforcing ribs 108 is arranged in a net shape.

[0043] To further facilitate the fixing of the wire harness and the copper bar, the BDU and BMS fixing plate further includes a first copper bar bracket 13 and a second copper bar bracket 14.

[0044] Among them, the first copper bar bracket 13 is in a "C" shape, and there are two. The two first copper bar brackets 13 are welded on the BDU installation position 101, and a cable tie installation hole 106 is provided vertically through the top of the first copper bar bracket 13 for installing a cable tie;

[0045] The second copper bar bracket 14 is in an "L" shape, and there is one. It is welded on the BMS installation position 102, and a cable tie installation hole 106 is provided horizontally through the top of it for installing a cable tie.

[0046] The above-mentioned plate body 1 is installed on the bottom plate of the battery pack. To facilitate the connection between the plate body 1 and the bottom plate, a number of installation legs 15 are provided at the edge of the bottom surface of the plate body 1. Among them, the installation legs 15 are in an L shape, and a bolt installation hole is provided vertically through the lower end of the installation legs 15 for installing bolts.

[0047] To improve the structural strength of the installation legs 15, a second reinforcing rib 109 is provided on the side of the installation legs 15.

[0048] In addition, since the transverse span of the plate body 1 is relatively large, therefore, to prevent the middle part of the top end of the plate body 1 from bending and deforming downward during use, two support legs 16 are provided in the middle of the plate body 1. Among them, one end of the support leg 16 penetrates the plate body 1 vertically to the lower part of the plate body 1, and the other end is provided on the top surface of the plate body 1. The lower end of the support leg 16 is used to abut against the bottom plate of the battery pack and is fixed on the bottom plate by a bolt installation method to be used as a second installation leg.

[0049]

[0049] In order to facilitate the connection between the support leg 16 and the bottom plate, two square-shaped holes are vertically and penetratingly provided at the positions corresponding to the support leg 16 on the plate body 1. One end of each of the two support legs 16 penetrates through a square-shaped hole. After penetration, the support leg 16 is fixedly connected to the plate body 1 by means of bolts or welding. The support leg 16 is in an inverted "J" shape. When the support leg 16 is fixedly connected to the plate body 1, bolts can enter from the inner side of the support leg 16, which facilitates the fixed connection between the support leg 16 and the bottom plate by bolts.

[0050] In addition, in the above structure, the plate body 1, the mounting leg 15, the first protrusion 103, the second protrusion 104, the third protrusion 105, the tie-tape mounting hole 106, the heat dissipation hole 107, the first reinforcing rib 108, and the second reinforcing rib 109 are formed by die stamping.

[0051]

[0050] The usage method of a BDU and BMS fixing plate of the present utility model is as follows:

[0052] First of all, the plate body 1 is installed on the bottom plate of the battery pack through the mounting leg 15. The BDU assembly is installed on the first riveting screw 11 at the BDU mounting position 101, and the BMS main control and slave control are installed on the second riveting screw 12 at the BMS mounting position 102. Busbars are respectively installed on the first busbar bracket 13 and the second busbar bracket 14. Then, the wire harnesses of the BDU assembly, the BMS main control and slave control are constrained on the top surface of the plate body 1 by tie tapes.

[0053]

[0051] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A BDU and BMS fixing plate, comprising a plate body (1), characterized in that: It also includes a first self-clinching screw (11) and a second self-clinching screw (12), wherein: A BDU installation position (101) is arranged on the top surface of one end of the plate body (1), and a BMS installation position (102) is arranged on the top surface of the other end, and the BDU installation position (101) and the BMS installation position (102) are coplanar; A plurality of first protrusions (103) are arranged on the BDU installation position (101), and a first self-clinching screw (11) is arranged on the top of each of the first protrusions (103), and the first self-clinching screw (11) is used to fix the BDU assembly; A plurality of second protrusions (104) are arranged on the BMS installation position (102), and a second self-clinching screw (12) is arranged on the top of each second protrusion (104), and the second self-clinching screw (12) is used to fix the BMS master control and slave control; A plurality of third protrusions (105) are arranged on the top surface of the plate body (1), and cable tie mounting holes (106) are vertically penetrated on the third protrusions (105), and the cable tie mounting holes (106) are used to install cable ties to fix the wiring harness and the copper busbar.

2. A BDU and BMS fixing plate as claimed in claim 1, characterized in that: The first self-clinching screw (11) and the second self-clinching screw (12) are both arranged vertically.

3. A BDU and BMS fixing plate as claimed in claim 2, characterized in that: The first protrusion (103), the second protrusion (104) and the third protrusion (105) are all spherical shell-shaped protrusions.

4. A BDU and BMS fixing plate as claimed in claim 1, characterized in that: The BDU installation position (101) and the BMS installation position (102) are provided with heat dissipation holes (107), and the heat dissipation holes (107) vertically penetrate the plate body (1).

5. A BDU and BMS fixing plate as claimed in claim 1, characterized in that: The right edge of the plate body (1) is turned upward, and the other three edges are turned downward.

6. A BDU and BMS fixing plate as claimed in claim 4, characterized in that: A plurality of first reinforcing ribs (108) are arranged on the top surface of the plate body (1), and the plurality of first reinforcing ribs (108) are arranged in a mesh shape.

7. A BDU and BMS fixing plate as claimed in claim 1, characterized in that: It also includes a first copper bar bracket (13) and a second copper bar bracket (14), wherein: The first copper bar bracket (13) is arranged on the BDU installation position (101); The second copper bar bracket (14) is arranged on the BMS installation position (102).

8. A BDU and BMS fixing plate as claimed in claim 1, characterized in that: Also included are mounting legs (15), wherein: A plurality of mounting legs (15) are arranged at the edge of the bottom surface of the plate body (1).

9. A BDU and BMS fixing plate as claimed in claim 8, characterized in that: A second reinforcing rib (109) is provided on the side of the mounting leg (15).

10. A BDU and BMS fixing plate as claimed in claim 9, characterized in that: Also included are support legs (16), wherein: One end of the support leg (16) vertically penetrates the plate body (1) to the bottom of the plate body (1), and the other end is arranged on the top surface of the plate body (1).

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