CN212625748U

CN212625748U - Battery management system installation device and battery pack with same

Info

Publication number: CN212625748U
Application number: CN202021791922.6U
Authority: CN
Inventors: 李炜; 胡叶成
Original assignee: China Aviation Lithium Battery Co Ltd; China Aviation Lithium Battery Research Institute Co Ltd
Current assignee: Avic Innovation Technology Research Institute Jiangsu Co ltd; China Aviation Lithium Battery Co Ltd; China Lithium Battery Technology Co Ltd; CALB Technology Co Ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-02-26
Anticipated expiration: 2030-08-24

Abstract

The utility model relates to a battery technology field provides a battery management system installation device and have its battery package. The battery management system mounting device comprises a fixing plate and a connecting plate, wherein the fixing plate is used for being connected with a battery management system; the connecting plate is connected with the fixing plate and used for being connected with the battery module so that the battery management system and the battery module are arranged at intervals. Can keep away from battery module installation with battery management system through fixed plate and connecting plate, can form between battery management system and the battery module promptly and dodge the space to make battery management system's bottom place plane infinitely close the bottom place plane of battery module, with this reduction battery management system place height.

Description

Battery management system installation device and battery pack with same

Technical Field

The utility model relates to a battery technology field especially relates to a battery management system installation device and have its battery package.

Background

Among the prior art, Battery Management System (BMS) passes through the mounting panel and connects on Battery module's end plate, and the mounting panel is direct to be laminated on the end plate promptly, then installs Battery Management System on the mounting panel through the bolt, because the restriction of Battery package body structure, the middle part in the end plate need be installed to the mounting panel, just can avoid Battery Management System to appear interfering with other structures.

In addition, even battery management system can avoid the problem of interfering with other structures, nevertheless owing to need connect through the bolt, and the end plate below sets up the packing area, can not trompil on the packing area, so battery management system also need be located packing area top to make battery management system's height higher, occupation space is great, is unfavorable for the miniaturized design of battery package.

SUMMERY OF THE UTILITY MODEL

The utility model provides a battery management system installation device and have its battery package to the realization is to battery management system's installation.

According to the utility model discloses a first aspect provides a battery management system installation device, include:

the fixing plate is used for being connected with a battery management system;

and the connecting plate is connected with the fixing plate and used for being connected with the battery module so as to enable the battery management system and the battery module to be arranged at intervals.

The utility model discloses battery management system installation device can keep away from battery module installation with battery management system through fixed plate and connecting plate, can form between battery management system and the battery module promptly and dodge the space to make the bottom place plane of battery management system infinitely close the bottom place plane of battery module, with this reduction battery management system place height.

According to a second aspect of the present invention, there is provided a battery pack, comprising the battery management system mounting device described above.

The utility model discloses battery package can keep away from battery module installation with battery management system through battery management system installation device's fixed plate and connecting plate, and battery management system's bottom place plane is infinitely close the bottom place plane of battery module promptly to this reduces battery management system place height, thereby can reduce the height of battery package.

Drawings

The various objects, features and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments of the invention, when considered in conjunction with the accompanying drawings. The drawings are merely exemplary of the invention and are not necessarily drawn to scale. In the drawings, like reference characters designate the same or similar parts throughout the different views. Wherein:

fig. 1 is an exploded schematic view of a battery management system mounting device and a battery management system according to an exemplary embodiment;

fig. 2 is a schematic diagram illustrating an assembly structure of a battery management system mounting device and a battery management system according to an exemplary embodiment;

FIG. 3 is a schematic diagram illustrating the construction of a battery management system mounting arrangement according to an exemplary embodiment;

fig. 4 is a schematic structural view illustrating a battery management system mounting apparatus according to another exemplary embodiment;

fig. 5 is a schematic diagram illustrating a partial structure of a battery pack according to an exemplary embodiment;

fig. 6 is a partially enlarged structural view illustrating a battery pack according to an exemplary embodiment.

The reference numerals are explained below:

1. a battery management system; 2. a battery module; 3. a battery case; 4. packing a belt; 5. an end plate;

10. a fixing plate; 20. a connecting plate; 21. mounting holes; 22. a wire harness fixing hole; 23. lightening holes; 24. a first plate body; 25. a second plate body; 30. a base; 31. a connector tile; 32. and a support plate.

Detailed Description

The technical solutions in the exemplary embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the exemplary embodiments of the present disclosure. The example embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present disclosure, and it is, therefore, to be understood that various modifications and changes may be made to the example embodiments without departing from the scope of the present disclosure.

In the description of the present disclosure, unless otherwise explicitly specified or limited, the terms "first", "second", and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more; the term "and/or" includes any and all combinations of one or more of the associated listed items. In particular, reference to "the" object or "an" object is also intended to mean one of many such objects possible.

The terms "connected," "secured," and the like are to be construed broadly and unless otherwise stated or indicated, and for example, "connected" may be a fixed connection, a removable connection, an integral connection, an electrical connection, or a signal connection; "connected" may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present disclosure can be understood by those skilled in the art as the case may be.

Further, in the description of the present disclosure, it is to be understood that the directional words "upper", "lower", "inner", "outer", etc., which are described in the exemplary embodiments of the present disclosure, are described at the angles shown in the drawings, and should not be construed as limiting the exemplary embodiments of the present disclosure. It will also be understood that, in this context, when an element or feature is referred to as being "on", "under", or "inner", "outer" with respect to another element(s), it can be directly on "," under ", or" inner "," outer "with respect to the other element(s), or indirectly on", "under", or "inner", "outer" with respect to the other element(s) via intervening elements.

An embodiment of the utility model provides a battery management system installation device, please refer to fig. 1 to fig. 6, battery management system installation device includes: a fixing plate 10, the fixing plate 10 being used for connecting with the battery management system 1; and the connecting plate 20 is connected with the fixing plate 10, and the connecting plate 20 is used for being connected with the battery module 2 so that the battery management system 1 and the battery module 2 are arranged at intervals.

The utility model discloses a battery management system installation device of an embodiment can keep away from battery module 2 installation with battery management system 1 through fixed plate 10 and connecting plate 20, can form between battery management system 1 and the battery module 2 promptly and dodge the space to make the bottom place plane of battery management system 1 infinitely close the bottom place plane of battery module 2, reduce battery management system 1 place height with this.

It should be noted that, due to the limitation of the structure of the battery pack, the battery management system 1 cannot be directly attached to the bottom of the battery module 2, that is, the bottom of the end plate of the battery module 2, and in the related art, the battery management system 1 needs to be far away from the bottom of the battery module 2 (that is, it needs to be ensured that the bottom of the battery management system 1 is higher than the bottom of the battery module 2), so that the height of the battery management system 1 is large, and even if the height of the battery module 2 is low, the overall height of the battery management system 1 cannot be reduced. And because the existence of fixed plate 10 and connecting plate 20, can make the position that fixed plate 10 connects battery management system keep away from battery module 2, battery management system 1 can and form between the battery module 2 and dodge the space promptly, this dodge the space can avoid being close to other structures of battery module 2 bottom, so, the bottom of battery management system 1 can infinitely be close to the bottom of battery module 2, thereby under the condition of the high reduction of battery module 2, also can wholly reduce the height of battery package.

Specifically, other structures (such as a support frame and other structures) near the bottom of the battery module 2 occupy a certain height space, and therefore need to be avoided when the battery management system 1 is installed, i.e., the height of the battery management system 1 is higher.

In addition, in one embodiment, the bottom of the end plate 5 of the battery module 2 is provided with the packing belt 4, and in the related art, even if other structures near the bottom of the battery module 2 do not exist, the battery management system 1 needs to avoid the packing belt 4, that is, a mounting hole may not be formed in the packing belt 4, so that the mounting position of the battery management system 1 is located above the packing belt 4.

It should be noted that, the packaging process of the battery module 2 generally is to combine the power battery cells into modules after sorting and matching, and in order to make the structure of the battery module firm, a packaging process is used, i.e. a packaging belt is used to bundle and package the battery modules, and the existing packaging methods are divided into plastic belt packaging and stainless steel belt packaging.

In one embodiment, the fixing plate 10 and the connecting plate 20 are made of different materials, i.e., different materials can be selected according to the structural strength and the material cost, so that the cost can be minimized and the weight can be minimized on the basis of ensuring the structural strength.

In one embodiment, the fixing plate 10 is made of aluminum and/or the connecting plate 20 is made of steel. Specifically, on the basis of ensuring the strength of the connecting plate 20, the connecting plate 20 may be provided with lightening holes 23, thereby lightening the weight of the connecting plate 20.

In one embodiment, as shown in fig. 3, the battery management system mounting device includes a fixing plate 10 and a connection plate 20, the battery management system 1 is connected with the battery module 2 through the fixing plate 10 and the connection plate 20, and there is no related connection structure between the battery management system 1 and the battery case 3.

It should be noted that aluminum has a relatively low cost and a relatively light weight, and can reduce the overall weight of the battery pack, while steel can ensure the structural strength and the installation stability of the battery management system 1. The connecting plate 20 needs to bear a large weight and thus has a large strength requirement, so that it is made of steel, and the fixing plate 10 does not need to have a high strength, so that aluminum with low cost and light weight is selected.

In one embodiment, as shown in fig. 4 to 6, the battery management system mounting device further includes: and a base 30, wherein the base 30 is connected with the fixing plate 10, and the base 30 is used for being connected with the battery box body 3. The fixing plate 10, the connecting plate 20 and the base 30 are engaged with each other to stably mount the battery management system 1 in the battery case 3 and form a connection relationship with the battery module 2.

In one embodiment, as shown in fig. 4, one end of the fixing plate 10 is connected to the connecting plate 20, and the other end of the fixing plate 10 is connected to the base 30, wherein the one end and the other end are not specifically referred to as upper and lower ends, and at least one end and one end are spaced up and down, i.e., the connecting plate 20 and the base 30 are spaced apart from each other, and in this position, the connecting plate 20 is located above the base 30.

In one embodiment, the base 30 may be made of aluminum, i.e., the fixing plate 10 and the base 30 may be made of a material with lower strength on the basis that the connecting plate 20 has sufficient strength, thereby ensuring strength and reducing cost.

In one embodiment, the base 30 is detachably connected to the fixing plate 10, which is not only convenient to install but also easy to disassemble and assemble.

Specifically, the base 30 is connected to the fixing plate 10 by a fastener, such as but not limited to a bolt, or the base 30 is clamped to the fixing plate 10.

In one embodiment, as shown in fig. 4 and 5, the base 30 includes: the connecting plate 31, the connecting plate 31 is connected with the fixing plate 10, and the connecting plate 31 is of a U-shaped structure; two support plates 32 are provided, the two support plates 32 are respectively connected to two ends of the connecting plate 31, the support plates 32 are used for being welded with the battery box 3, and optionally, the base 30 is of an integrated structure. The connection plate 31 is stably connected to the fixing plate 10, and the two support plates 32 form a stable base to ensure a reliable connection between the base 30 and the battery case 3.

Specifically, the engagement plates 31 are detachably connected to the fixing plates 10, and the fixing plates 10 are positioned above the engagement plates 31.

In one embodiment, as shown in fig. 4, the engaging plates 31 are integrally formed in a U-shaped structure, and the supporting plates 32 are flat plates connected to both ends of the U-shaped structure, respectively, and extend toward the outside of the U-shaped space, thereby achieving stable support. The base 30 may be a one-piece structure, that is, the base 30 may be formed by bending a U-shaped structure outward.

In one embodiment, as shown in fig. 1, the connection plate 20 is provided with at least one of a mounting hole 21 and a harness fixing hole 22.

It should be noted that the mounting holes 21 may be used for fasteners to pass through, for example, for connecting the connecting plate 20 with the battery module 2 or connecting the connecting plate 20 with the fixing plate 10. And the wire harness fixing hole 22 is used for enabling the cable to pass through to realize the fixed limit of the cable.

In one embodiment, each of the mounting hole 21 and the harness fixing hole 22 may be plural.

In one embodiment, the connecting plate 20 is riveted to the fixing plate 10, so that the connecting plate 20 and the fixing plate 10 are not detached.

Specifically, the connecting plate 20 is connected with the fixing plate 10 through the blind rivet, the connecting plate 20 is an L-shaped plate body, two straight plate bodies forming the L-shaped plate body are respectively connected with the battery module 2 and the fixing plate 10, for example, a bolt is connected with the battery module 2 through a mounting hole 21 on one straight plate body, and the blind rivet is connected with the fixing plate 10 through a mounting hole 21 on the other straight plate body.

An embodiment of the present invention further provides a battery pack, please refer to fig. 1 to 6, wherein the battery pack includes the battery management system installation device.

The utility model discloses a battery package can keep away from battery module 2 installation with battery management system 1 through battery management system installation device's fixed plate 10 and connecting plate 20, and battery management system 1's bottom place plane is infinitely close battery module 2's bottom place plane promptly to this reduces battery management system 1 place height, thereby can reduce the height of battery package.

In one embodiment, as shown in fig. 1 and 2, the battery pack further includes: the battery management systems 1 are arranged in pairs, and the two paired battery management systems 1 are respectively connected to two sides of the fixing plate 10. The fixing plate 10 is sandwiched between the two battery management systems 1, i.e., a fixing member penetrates through the two battery management systems 1 and the fixing plate 10.

It should be noted that the two battery management systems 1 may be independent battery management systems, that is, independent control may be implemented, or the two battery management systems 1 form a complete battery management system, and the two battery management systems 1 are only limited in structural form.

In one embodiment, as shown in fig. 5 and 6, the battery pack further includes: the battery module 2, battery module 2 include end plate 5, and connecting plate 20 is connected with end plate 5 to make and form between battery management system 1 and the end plate 5 and dodge the space, thereby make battery management system 1 avoid end plate 5, the plane in bottom place of battery management system 1 and the plane in bottom place of end plate 5 can infinitely approach as required promptly.

Specifically, as described with reference to fig. 1 and 6, the connecting plate 20 is an L-shaped plate, the first plate 24 is connected to the end plate 5, the second plate 25 is connected to the fixing plate 10, and two ends of the first plate 24 are respectively connected to the second plate 25 and the end plate 5, so that a gap is formed between the fixing plate 10 and the end plate 5, and thus an avoiding space is formed between the battery management system 1 and the end plate 5.

Note that the bottom end of the battery management system 1 is the side away from the connection plate 20, that is, the surface directly opposite to the battery case 3. Accordingly, the bottom end of the end plate 5 is a face directly opposite to the battery case 3.

In one embodiment, as shown in fig. 5 and 6, a packing belt 4 is disposed on the end plate 5, the connecting plate 20 is connected to the top end of the end plate 5, and the plane of the bottom end of the battery management system 1 is lower than the plane of the top end of the packing belt 4, that is, the plane of the bottom end of the battery management system 1 and the plane of the bottom end of the end plate 5 can be infinitely close to each other, so that the height of the battery pack can be reduced.

It should be noted that the bottom end and the top end may be relative to the bottom surface of the battery case 3, that is, the end far away from the bottom surface of the battery case 3 is the top end, and the other end near the bottom surface of the battery case 3 is the bottom end.

In one embodiment, as shown in fig. 5 and 6, the battery pack further includes: the battery box body 3, the battery management system installation device, the battery management system 1 and the battery module 2 are all positioned in the battery box body 3; the battery management system 1 and the battery box 3 are insulated from each other.

Specifically, the battery management system 1 is spaced from the bottom surface of the battery box 3, i.e. air isolation is achieved, or the battery management system 1 is in contact with the battery box 3, but an insulating layer (e.g. an insulating coating) is provided on the battery management system 1 and/or the battery box 3, so as to satisfy the insulation between the battery management system 1 and the battery box 3.

In one embodiment, the fixing plate 10 and the connecting plate 20 are insulated from each other, and the base 30 of the fixing plate 10 is insulated from each other, so as to ensure the insulation among the battery management system 1, the battery module 2, and the battery case 3. Specifically, the insulation treatment may be to provide an insulation structure or cover an insulation layer, which is not limited herein.

Note that the battery management system 1 is located at an intermediate position of the battery case 3.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and example embodiments be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A battery management system mounting device, comprising:

a fixing plate (10), the fixing plate (10) being used for connecting with a battery management system (1);

the connecting plate (20), the connecting plate (20) with the fixed plate (10) is connected, the connecting plate (20) is used for being connected with the battery module (2) so that the battery management system (1) and the battery module (2) are arranged at intervals.

2. The battery management system mounting device according to claim 1, wherein the fixing plate (10) and the connection plate (20) are prepared from different materials.

3. The battery management system mounting device according to claim 2, wherein the fixing plate (10) is made of aluminum and/or the connecting plate (20) is made of steel.

4. The battery management system mounting device of claim 1, further comprising:

the base (30), base (30) with fixed plate (10) are connected, base (30) are used for being connected with battery box (3).

5. The battery management system mounting arrangement according to claim 4, wherein the base (30) is detachably connected with the fixing plate (10).

6. The battery management system mounting device according to claim 1, wherein at least one of a mounting hole (21) and a harness fixing hole (22) is provided on the connection plate (20).

7. A battery pack characterized by comprising the battery management system mounting device according to any one of claims 1 to 6.

8. The battery pack according to claim 7, further comprising:

the battery management system comprises battery management systems (1), wherein the battery management systems (1) are arranged in pairs, and the two battery management systems (1) in pairs are respectively connected to two sides of the fixing plate (10).

9. The battery pack according to claim 8, further comprising:

battery module (2), battery module (2) include end plate (5), connecting plate (20) with end plate (5) are connected, form between battery management system (1) and end plate (5) and dodge the space.

10. The battery pack according to claim 9, further comprising:

the battery management system installation device, the battery management system (1) and the battery module (2) are all positioned in the battery box body (3);

the battery management system (1) and the battery box body (3) are arranged in an insulating mode.