Mounting bracket and power battery pack

Abstract

The utility model discloses a mounting bracket and relates to the technical field of batteries. Comprising a mounting plate, and the mounting plate is provided with a limiting mounting structure for limiting a battery management unit at the lower end of the battery management unit and a threaded mounting structure for fixing the battery management unit at the upper end of the battery management unit and further fixing the battery management unit in cooperation with the limiting mounting structure; and the mounting plate is also provided with one or more binding structures for binding and fixing the battery wire harness. The mounting bracket disclosed by the utility model is used for collecting a battery wire harness, ensuring the connection stability between a battery module and a battery management unit and ensuring the use safety of a battery; moreover, when the mounting bracket is applied to the power battery pack, the mounting bracket can be effectively combined with the original structure of the battery pack, so that the battery wire harnesses are orderly distributed in the battery pack, the space occupied by the battery wire harnesses can be further compressed, the energy density of the battery is improved, and the use safety of the battery is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a mounting bracket and a power battery pack. Background Art

[0002] The internal sampling function module of the battery pack mainly includes a battery management unit and a wire harness for connecting the battery management unit and the battery module; in the existing combined installation scheme of the battery management unit and the wire harness, the wire harness is usually connected to the battery module at one end and the battery management unit at the other end, and the body part of the wire harness is not fixed, so that the wire harness is easily wound during the assembly of the battery pack, thus hindering the assembly of the battery pack; moreover, when the battery pack is in a vibrating and bumpy environment, the wire harness in the battery pack will also become loose and wound, and pull the wiring terminal, resulting in instability in the connection between the battery pack and the battery management unit, affecting the battery use safety. Summary of the Utility Model

[0003] The utility model provides a mounting bracket for mounting a battery management unit and for bundling a battery wire harness to avoid wire harness winding, so as to ensure the connection stability between the battery module and the battery management unit and ensure the battery use safety; moreover, when the mounting bracket is applied to a power battery pack, it can be effectively combined with the original structure of the battery pack, while making the battery wire harness distributed orderly in the battery pack, further compressing the space occupied by the battery wire harness, improving the battery energy density, and ensuring the battery use safety, so as to solve the above technical problems.

[0004] The technical solution of the utility model to solve the above problems is: to provide a mounting bracket for mounting a battery management unit and for bundling a battery wire harness, including a mounting plate, on which there are a limiting mounting structure for limiting the battery management unit at the lower end of the battery management unit and a threaded mounting structure for fixing the battery management unit at the upper end of the battery management unit and cooperating with the limiting mounting structure to further fix the battery management unit; one or more bundling structures for tightly fixing the battery wire harness are also provided on the mounting plate.

[0005] Further, the limiting mounting structure includes at least one limiting plate for clamping and limiting the battery management unit in cooperation with the mounting plate.

[0006] Further, there are two limiting plates, and the two limiting plates are also arranged oppositely, so that the two limiting plates also clamp and limit the battery management unit from the left and right sides through the opposite plate body parts of the two.

[0007] Further, a temperature acquisition module is also provided on the mounting plate, and the temperature acquisition module is fixedly mounted on the mounting plate through a plurality of threaded mounting structures.

[0008] Further, the threaded mounting structure includes a mounting hole formed in the mounting plate, and a threaded connector that passes through an existing hole structure on the battery management unit or an existing hole structure on the temperature acquisition module and is threadedly connected to the mounting hole for cooperation.

[0009] Further, the bundling structure includes a hole structure provided on the mounting plate, and a cable tie that passes through the hole structure to bundle the battery wiring harness at the upper edge position of the mounting plate.

[0010] Further, there are a plurality of the bundling structures, and the plurality of bundling structures are distributed on the upper edge or both side edges of the mounting plate.

[0011] The present utility model further provides a power battery pack, which includes a battery module, a support seat, an end plate, and the mounting bracket described in any one of the above. The battery module is mounted on the support seat, the end plate is mounted at the end of the battery module, the lower edge of the mounting bracket is fixedly connected to the support seat, the upper edge is fixedly connected to the end plate, the battery management unit is arranged on the mounting bracket, and the battery wiring harness is connected to the battery module and the battery management unit.

[0012] Further, a butt plate is horizontally extended and provided at the lower edge of the mounting bracket, a lapping plate is horizontally extended and provided at the upper edge, hole structures are provided on both the butt plate and the lapping plate, and a threaded fixing member is further included, which is arranged at the hole structure and is used for fixedly connecting the butt plate and the support seat or fixedly connecting the lapping plate and the end plate.

[0013] Further, the battery wiring harness includes a module connector, an external communication connector, a battery management unit connector, and a wiring harness main body. The wiring harness main body has a plurality of connection heads. Among these several connection heads, a part of the connection heads are used for connecting the module connector, a part of the connection heads are used for connecting the battery management unit connector, and a part of the connection heads are used for connecting the external communication connector.

[0014] Further, a temperature acquisition connector for connecting the temperature acquisition module is further included, and the temperature acquisition connector is arranged on a part of the connection heads.

[0015] Advantages of the present utility model:

[0016] The present utility model provides a mounting bracket. By providing a bundling structure, the battery wires connecting the battery module and the battery management unit are tightly bound and fixed on the mounting bracket to orderly bundle the battery wiring harness. Moreover, the battery management unit is also fixed to the mounting bracket, so as to improve the utilization rate of the mounting bracket, provide convenience for the installation of the battery management unit, and further improve the connection stability between the battery management unit and the battery wiring harness.

[0017] Moreover, the utility model simplifies the operations of installing, disassembling, and maintaining the battery management unit by providing a limit installation structure along the lower edge of the mounting bracket, so that when the battery management unit is fixed to the mounting bracket, its lower edge is limit-fixed through the limit installation structure, avoiding the need to reach into the bottom area of the battery pack to operate for disassembling or installing the battery management unit.

[0018] In addition, the utility model also fixes and installs the battery management unit along the lower edge of the mounting bracket, and provides a bundling structure at the upper edge and both side edges of the mounting bracket. When the mounting bracket is set at the end of the battery module, the distances from the upper edge of the mounting bracket to the wiring terminal of the battery module and to the battery management unit are made as equal as possible, and the distances from both side edges of the mounting bracket to the wiring terminal of the battery module and to the battery management unit are also kept as consistent as possible. In this way, the bundling structure can tightly fasten the middle body of the wire harness main body, thereby cooperating with the wiring terminal of the battery wire harness to bundle the battery wire harness to the greatest extent and restrict the movement of the battery wire harness.

[0019] Both the upper edge and the lower edge of the mounting bracket adopt a lapped structure to connect with the battery pack structure, which also facilitates the fixed installation of the mounting bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings incorporated into the specification and constituting a part of the specification illustrate embodiments of the utility model and, together with the description, are used to explain the principles of the utility model. In these drawings, like reference numerals are used to represent like elements. The following drawings are some embodiments of the utility model, not all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 Structural diagram of the mounting bracket for this embodiment;

[0022] Figure 2 Structural diagram of the power battery pack for this embodiment;

[0023] Figure 3 End structural diagram of the power battery pack for this embodiment;

[0024] 1 - Battery management unit, 2 - Battery wire harness, 21 - Module connector, 22 - External communication connector, 23 - Battery management unit connector, 24 - Temperature acquisition connector, 25 - Wire harness main body, 4 - Limit plate, 5 - Mounting hole, 6 - Cable tie, 7 - Temperature acquisition module;

[0025] 101 - Battery module, 102 - Support base, 103 - End plate, 104 - Mounting bracket, 105 - Contact plate, 106 - Lapping plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In this specification, orientation terms such as up, down, left, right, front, back, front side, back side, top, bottom, etc., which are mentioned or may be mentioned, are defined relative to the structures shown in the respective drawings. The terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component. They are relative concepts and may accordingly change depending on their different positions and usage states. Therefore, these or other orientation terms should not be construed as restrictive terms either.

[0027] Please refer to Figures 1 to 3 For an installation bracket according to a specific embodiment of the present utility model, it includes a mounting plate. The mounting plate is a straight plate and is erected and installed at the end face of the battery module 101. A battery management unit 1 and a temperature acquisition module 7 are installed at the lower edge position on the outer side of the mounting plate. The battery wiring harness 2 is connected upward to the battery module 101 and downward to the battery management unit 1 and the temperature acquisition module 7 respectively. The bundling structure tightly fixes the battery wiring harness 2 at the upper edge position of the mounting plate, so that most of the body of the battery wiring harness 2 is orderly fixed to the outer side of the mounting plate.

[0028] Moreover, when the battery module 101 is installed in the battery pack, the lower edge of the battery module 101 usually lies at the bottom of the package body. And since the mounting plate is installed on the end face of the battery module 101, when the battery module 101 is installed in the battery pack and the battery management unit 1 is also installed on the end face of the battery module 101, the lower edge of the battery management unit 1 will be difficult to access, which in turn makes the subsequent operation of disassembling and replacing the battery management unit 1 very difficult. Therefore, in this embodiment, a limiting installation structure is provided at the lower edge of the mounting plate, and a threaded installation structure is provided in the middle of the mounting plate. The battery management unit 1 is first inserted into the limiting installation structure in a downward insertion manner, and then its upper edge is fixed to the middle of the mounting plate by the threaded installation structure, so as to be finally fixed to the mounting plate. When later it is necessary to maintain or replace the battery management unit 1, technicians can first only disassemble the threaded installation structure at the middle position of the mounting plate, and then pull out the battery management unit 1 upward. This operation method is relatively more convenient.

[0029] In this embodiment, a hole structure is provided at the upper edge of the battery management unit 1, and the threaded installation structure includes a mounting hole 5 opened on the mounting plate and a threaded connecting member. The threaded connecting member is a bolt, the mounting hole 5 is a threaded hole, and the bolt passes through the hole structure on the battery management unit 1 to be threadedly connected to the mounting hole 5, thereby fixing the battery management unit 1.

[0030] In addition, hole structures are also provided around the temperature acquisition module 7, and the temperature acquisition module 7 is correspondingly fixed to the mounting plate through four sets of threaded mounting structures; of course, when necessary, the temperature acquisition module 7 can also be fixed to the mounting plate by means of a limit mounting structure arranged at the lower edge and a threaded mounting structure arranged at the upper edge.

[0031] In other embodiments, the threaded connecting member can also be set as a combination of a bolt and a nut, that is, the bolt passes through the hole structure on the battery management unit 1 and the mounting hole 5 of the mounting plate, and is threadedly connected to the nut on the inner side of the mounting plate to fixedly mount the battery management unit 1.

[0032] In this embodiment, the limit mounting structure includes oppositely arranged limit plates 4. The two limit plates 4 have the same shape. One of the limit plates 4 includes a horizontal bottom plate, an outer clamping plate, and a side-end clamping plate that are perpendicular to each other in pairs. The horizontal bottom plate is used to support the battery management unit 1, the outer clamping plate is parallel to the mounting plate and cooperates with the mounting plate to limit the battery management unit 1, and the side-end clamping plates of the two limit plates 4 cooperate with each other to limit the battery management unit 1 in the left-right direction.

[0033] Furthermore, in this embodiment, guide inclined plates that incline outward are also provided at the upper ends of the outer clamping plate and the side-end clamping plate to guide the battery management unit 1 to be inserted downward.

[0034] In this embodiment, the bundling structure includes a plurality of hole structures provided at the upper edge of the mounting plate and a plurality of cable ties 6. One cable tie 6 and two hole structures form a group. That is, after the cable tie 6 is sleeved on the battery wiring harness 2, its two ends respectively pass through the two hole structures and are fixedly connected on the other side of the mounting plate to tighten the battery wiring harness 2 on the mounting plate.

[0035] Please refer to Figures 2 to 3 , this embodiment also includes a power battery pack, which includes a battery module 101, a support seat 102, an end plate 103, and a mounting bracket 104. The mounting bracket 104 is the mounting bracket 104 mentioned in any paragraph of the above embodiment content. The battery module 101 is horizontally loaded on the support seat 102. The end plate 103 is a frame structure. The end plate 103 is installed at the front end of the battery module 101, and the end plate 103 is spaced between the battery module and the mounting bracket 104. The edge of the end plate 103 is also exposed at the same time. The lower edge of the mounting bracket 104 is fixedly connected to the support seat 102 through a contact plate 105, and the upper edge is fixedly connected to the exposed body at the upper end of the end plate 103 through a lapping plate 106. The battery management unit 1 is arranged on the left side of the mounting bracket 104, and the temperature acquisition module 7 is installed on the right side.

[0036] Among them, the abutting plate 105 and the overlapping plate 106 are both provided with hole structures, and threaded fasteners are also provided at the hole structures. The threaded fasteners are also bolts. The way the threaded fasteners connect the abutting plate 105 and the support base 102 is exactly the same as the way the threaded connectors in the foregoing embodiments connect the battery management unit 1 and the mounting plate. Moreover, the horizontal bottom plate of the limiting plate 4 is also a part of the abutting plate 105.

[0037] In addition, in this embodiment, the battery harness 2 includes a plurality of module connectors 21, at least one external communication connector 22, a plurality of battery management unit connectors 23, a plurality of temperature acquisition connectors 24, and a harness main body 25. The harness main body 25 has a plurality of connection heads. Among these several connection heads, a part of the connection heads are used to connect the module connectors 21, a part of the connection heads are used to connect the battery management unit connectors 23, a part of the connection heads are used to connect the temperature acquisition connectors 24, and the remaining connection heads are used to connect the external communication connectors 22. Correspondingly, the battery harness 2 is connected to a plurality of battery modules 101 through a plurality of module connectors 21, and is also connected to the battery management unit 1 provided at the lower part of the mounting plate through a plurality of battery management unit connectors 23, and is further connected to the temperature acquisition module 7 provided on the right side of the mounting plate through a plurality of temperature acquisition connectors 24, and is then connected to an external control system through at least one external communication connector 22 to collect the working information of the battery module 101 and control the working state of the battery to ensure battery safety.

[0038] For those not mentioned above, the prior art is applicable.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An installation bracket for installing a battery management unit (1) and bundling battery wiring harnesses (2), characterized in that, It includes a mounting plate, on which there is a limiting and mounting structure for limiting the battery management unit (1) at the lower end of the battery management unit (1), and a threaded mounting structure for fixing the battery management unit (1) at the upper end of the battery management unit (1) and further fixing the battery management unit (1) in cooperation with the limiting and mounting structure; one or more bundling structures for tightly fixing the battery wiring harness (2) are also provided on the mounting plate.

2. The mounting bracket according to claim 1, wherein The limiting and mounting structure includes at least one limiting plate (4), and the limiting plate (4) is used to cooperate with the mounting plate to clamp and limit the battery management unit (1).

3. The mounting bracket according to claim 2, characterized in that, There are two limiting plates (4), and the two limiting plates (4) are also arranged oppositely, so that the two limiting plates (4) also clamp and limit the battery management unit (1) from the left and right sides through the opposite plate body parts of the two.

4. The mounting bracket according to claim 1, characterized in that, A temperature acquisition module (7) is also provided on the mounting plate, and the temperature acquisition module (7) is fixedly mounted on the mounting plate through a plurality of threaded mounting structures.

5. The mounting bracket according to claim 4, wherein, The threaded mounting structure includes a mounting hole (5) opened on the mounting plate, and a threaded connector that passes through the existing hole structure on the battery management unit (1) or passes through the existing hole structure on the temperature acquisition module (7) to be threadedly connected with the mounting hole (5).

6. The mounting bracket according to claim 1, characterized in that, The bundling structure includes a hole structure provided on the mounting plate, and a cable tie (6) that passes through the hole structure to bundle the battery wiring harness (2) at the upper edge position of the mounting plate.

7. The mounting bracket according to claim 1, characterized in that, There are a plurality of the bundling structures, and the plurality of bundling structures are distributed on the upper edge or both side edges of the mounting plate.

8. A power battery pack, characterized in that, It includes a battery module (101), a support base (102), an end plate (103), and a mounting bracket (104) as described in any one of claims 1-7. The battery module (101) is mounted on the support base (102), the end plate (103) is mounted at the end of the battery module (101), the lower edge of the mounting bracket (104) is fixedly connected to the support base (102), the upper edge is fixedly connected to the end plate (103), the battery management unit (1) is arranged on the mounting bracket (104), and the battery wiring harness (2) connects the battery module and the battery management unit (1).

9. The power battery pack according to claim 8, characterized in that A butt plate (105) is horizontally extended and provided at the lower edge of the mounting bracket (104), and a lapping plate (106) is horizontally extended and provided at the upper edge. Hole structures are provided on both the butt plate (105) and the lapping plate (106), and it also includes threaded fixing parts provided at the hole structures and used for fixedly connecting the butt plate (105) and the support base (102), or fixedly connecting the lapping plate (106) and the end plate (103).

10. The power battery pack according to claim 8, wherein The battery wiring harness (2) includes a module connector (21), an external communication connector (22), a battery management unit connector (23), and a harness main body (25). The harness main body (25) has a plurality of connection heads. Among these several connection heads, a part of the connection heads are used to connect the module connector (21), a part of the connection heads are used to connect the battery management unit connector (23), and a part of the connection heads are used to connect the external communication connector (22).

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