CN218896789U - Battery module, battery pack and vehicle - Google Patents

Abstract

The utility model discloses a battery module, a battery pack and a vehicle, wherein the battery module comprises: the pole column of each battery cell is positioned at two ends of the battery cell in the length direction; the PCB is arranged at one end of the battery monomer in the length direction; the adaptor is formed by extending one end of a battery monomer in the length direction to the other end, one end of the adaptor is connected with the pole, and the other end of the adaptor is connected with the PCB. According to the battery module, the PCB is arranged at one end of the battery unit in the length direction, the adapter extends from one end of the battery unit in the length direction to the other end, and the PCB and the adapter are both positioned below the aluminum bar, so that the space at two ends of the battery module is fully utilized, the PCB and the adapter do not occupy the length space of the battery module additionally, the space utilization rate of the battery module is improved, the universality is good, the structure is simple, the assembly is convenient, and the production cost is reduced.

Description

Battery modules, packs and vehicles

technical field

The utility model relates to the technical field of new energy vehicles, in particular to a battery module, a battery pack and a vehicle.

Background technique

It is pointed out in related technologies that the current development trend of power battery systems is the gradual simplification and reduction of structural and electrical components. Sufficient space is reserved, and the trend of electrical harness removal is becoming more and more obvious; blade cells are now more and more widely used, blade cells mostly have poles on both sides, and explosion-proof valves on one or both sides, and blade modules use The integrated slave board design can greatly reduce the acquisition wire harness. Existing one-side or two-side explosion-proof valve batteries, when carrying out the integrated design of the slave board, in order to reserve exhaust space for the battery cells, the slave board needs to be erected above the bus bar and the explosion-proof valve, which will increase the length of the module; When the battery cell uses a neutral uncharged shell for voltage acquisition and transfer, in order to facilitate the welding of the nickel sheet for the transfer, the cover plate of the battery cell will be designed with a boss, which increases the cost of the cell cover plate; the shell is charged and uncharged. The charging scheme and the integrated slave board sampling scheme are quite different, and it is impossible to achieve universal unity

Utility model content

The utility model aims at at least solving one of the technical problems existing in the prior art. Therefore, the utility model is to provide a battery module, the battery module has an ingenious structural design and good versatility.

The utility model also proposes a battery pack with the above-mentioned battery module.

The utility model also proposes a vehicle with the above-mentioned battery pack.

The battery module according to the first aspect of the present invention includes: a plurality of battery cells arranged in the width direction of itself, and the pole of each of the battery cells is located on the Two ends in the length direction of the battery cell; a PCB board, the PCB board extends along the length direction of the battery cell, and the PCB board is arranged at one end of the battery cell in the length direction; an adapter, The adapter piece extends from the one end of the battery cell in the length direction to the other end, one end of the adapter piece is connected to the pole, and the other end of the adapter piece is connected to the PCB board connected.

According to the battery module of the present utility model, by setting the PCB board at one end of the battery cell in the length direction, the adapter extends from one end of the battery cell in the length direction to the other end, and the PCB board and the adapter are both It is located under the aluminum bar, so that the space at both ends of the battery module is fully utilized, so that the PCB board and the adapter do not occupy the additional length space of the battery module, which improves the space utilization of the battery module, and has good versatility and structure. It is simple and convenient to assemble, and reduces the production cost of the battery module.

In some embodiments, a communication connector is provided on the PCB, and the other end of the adapter is connected to the communication connector.

In some embodiments, the battery module further includes: an aluminum bar assembly, the aluminum bar assembly includes a plurality of aluminum bar connectors, and the aluminum bar connectors are connected to poles of every two adjacent battery cells. between, and the one end of the transition piece is connected to each of the aluminum bar connecting pieces.

In some embodiments, the PCB board is connected to the aluminum bar connecting piece through a collecting piece.

In some embodiments, the adapter is provided with a safety strip, and the safety strip is formed with multiple sections of safe narrow diameters.

In some embodiments, each of the battery cells has an explosion-proof valve, and the explosion-proof valve is provided on one side surface of each of the battery cells in the height direction.

In some embodiments, the battery module further includes: a tray, the tray is disposed under the plurality of battery cells, and is used for carrying the battery cells.

In some embodiments, the battery module further includes: a cover plate, the cover plate covers both ends of the battery cells in the length direction, and the cover plate is connected to the tray.

The battery pack according to the second aspect of the present invention includes the battery module according to the first aspect of the present invention.

According to the battery pack of the present invention, the space utilization rate of the battery pack is improved, the volume of the battery pack is reduced, and the production cost of the battery pack is reduced by arranging the battery module of the first aspect.

The vehicle according to the third aspect of the utility model includes the battery pack according to the above-mentioned second aspect of the utility model.

According to the vehicle of the present utility model, the safety performance of the vehicle is improved, the production cost of the vehicle is reduced, and the assembly space of the battery pack is reduced by providing the battery pack of the second aspect above.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

Fig. 1 is a schematic diagram of a battery module according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of another perspective of the battery module shown in Fig. 1;

Fig. 3 is a schematic diagram of the battery module, wherein the adapter is connected to the communication connector;

4 is a schematic diagram of a rear view of the battery module shown in FIG. 3;

5 is a schematic diagram of a battery module according to another embodiment of the present invention;

Fig. 6 is a schematic diagram of the battery module shown in Fig. 5;

Fig. 7 is a schematic diagram of another perspective of the battery module shown in Fig. 6;

FIG. 8 is an assembly diagram of the battery module shown in FIG. 7 .

Reference signs:

100. Battery module;

1. Battery cell; 11. Explosion-proof valve; 12. Pole;

2. PCB board; 21. Communication connector;

3. Adapter;

4. Aluminum bar components; 41. Aluminum bar connectors;

5. Tray; 51. The first connecting hole;

6. Cover plate; 61. Second connecting hole;

7. Collection pieces.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

A battery module 100 according to an embodiment of the first aspect of the present invention will be described below with reference to FIGS. 1-8 .

As shown in FIG. 1 , the battery module 100 according to the embodiment of the first aspect of the present invention includes: a plurality of battery cells 1 , a PCB board 2 and an adapter 3 .

Specifically, a plurality of battery cells 1 are arranged in the width direction of itself, the poles 12 of each battery cell 1 are located at both ends of the length direction of the battery cell 1, and the PCB board 2 is arranged along the length direction of the battery cell 1. Extending in the length direction, the PCB board 2 is arranged at one end of the battery cell 1 in the length direction, and the adapter 3 extends from one end of the battery cell 1 in the length direction to the other end, and one end of the adapter 3 is connected to the pole 12 The other end of the adapter 3 is connected to the PCB board 2. Therefore, the structural design of the battery module 100 is ingenious, and the internal space of the battery module 100 is fully utilized.

According to the battery module 100 of the embodiment of the present invention, by arranging the PCB board 2 at one end of the battery cell 1 in the length direction, the adapter 3 extends from one end of the battery cell 1 in the length direction to the other end, and Both the PCB board 2 and the adapter piece 3 are located under the aluminum bar, thereby making full use of the space at both ends of the battery module 100, so that the PCB board 2 and the adapter piece 3 do not occupy additional length space of the battery module 100, thereby improving battery life. The space utilization rate of the module 100 is good, the versatility is good, the structure is simple and easy to assemble, and the production cost of the battery module 100 is reduced.

Preferably, the adapter 3 can be FFC (Flexible Cable) or FPC (Flexible Printed Circuit).

In some embodiments of the present invention, a communication connector 21 is provided on the PCB 2 , and the other end of the adapter 3 is connected to the communication connector 21 . Specifically, the communication connector 21 can be a double-layer communication connector 21, or a single-layer communication connector 21. When using a double-layer communication connector 21, any type of adapter 3 can be adapted, and a single-layer communication connection can be used. When the device 21 is used, the production cost of the battery module 100 is reduced.

In some embodiments of the present invention, the battery module 100 further includes: an aluminum bar assembly 4, the aluminum bar assembly 4 includes a plurality of aluminum bar connectors 41, and the aluminum bar connectors 41 are connected between every two adjacent battery cells 1 between the poles 12, and one end of the adapter 3 is connected to each aluminum bar connector 41. Therefore, the structure of the battery module 100 is simple, and the arrangement of the aluminum bar connector 41 can prevent the breakage of the switch or the bus bar due to short circuit or thermal contraction.

In some embodiments of the present invention, the PCB board 2 and the aluminum bar connector 41 are connected through the collecting part 7 . Because the metal nickel has good metal stability, the collecting part 7 is a nickel sheet, which is convenient for welding the nickel sheet and the aluminum bar connecting part 41 .

In some embodiments of the present invention, the adapter 3 is provided with a safety strip, and the safety strip is formed with multiple safety narrow diameters. Here, the adapter 3 is an FPC, and the FPC is provided with multiple sections of insurance narrows, which can be effectively and safely disconnected when a high-voltage sampling short circuit occurs, avoiding arcing, and improving the safety performance of the battery module 100 .

In some embodiments of the present invention, each battery cell 1 has an explosion-proof valve 11 , and the explosion-proof valve 11 is arranged on one side surface of each battery cell 1 in the height direction. Thus, space is provided for the arrangement of the PCB board 2 and the adapter 3 , and the space utilization rate of the battery module 100 is improved.

Preferably, the explosion-proof valve 11 is arranged on the bottom surface of the battery cell 1 .

In some embodiments of the present utility model, the battery module 100 further includes: a tray 5 , which is arranged on the lower part of the plurality of battery cells 1 and is used for carrying the battery cells 1 . Preferably, the tray 5 is made of plastic insulating material, and a first connection hole 51 is formed on the tray 5 .

In some embodiments of the present invention, the battery module 100 further includes: a cover plate 6 covering both ends of the battery cell 1 in the length direction, and the cover plate 6 is connected to the tray 5 . Specifically, a second connection hole 61 is formed on the cover plate 6 , and the cover plate 6 and the tray 5 are installed and fixed through the first connection hole 51 and the second connection hole 61 by fasteners. Thus, the safety protection isolation of the battery module 100 is realized, and the safety factor of the battery module 100 is improved.

The battery module 100 according to two specific embodiments of the present invention will be described below with reference to FIGS. 1-8 .

Embodiment one,

Specifically, as shown in FIG. 1, the explosion-proof valve 11 is provided on the bottom surface of the battery cell 1, and the positive and negative poles 12 of two adjacent battery cells 1 are arranged alternately. When the battery pack case is charged, the PCB board 2 is set At one end of the battery cell 1 in the length direction, the FFC or FPC extends from one end of the battery cell 1 in the length direction to the other end, one end of the FFC or FPC is connected to the pole 12, and the other end of the FFC or FPC is connected to the PCB The lower jacks of the communication connectors 21 on the board 2 are connected, and the upper jacks of the communication connectors 21 are used to connect with the FFC or FPC between the adapters 3 .

Embodiment 2, as shown in FIG. 5, when the battery pack housing is a neutral housing and is not charged, the FPC is welded and connected to the cover plate 6 of the battery module 100, and is transferred to the PCB board 2 through a nickel sheet, and is set on the FPC. The multi-stage safety narrow diameter can effectively and safely disconnect when a high-voltage sampling short circuit occurs, avoiding arcing, and improving the safety performance of the battery module 100 . A first connection hole 51 is formed on the tray 5 , and a second connection hole 61 is formed on the cover plate 6 , and the cover plate 6 and the tray 5 are fixed through the first connection hole 51 and the second connection hole 61 by fasteners.

The battery pack according to the embodiment of the second aspect of the present invention includes the battery module 100 according to the embodiment of the first aspect of the present invention.

According to the battery pack of the embodiment of the present invention, by providing the battery module 100 of the first embodiment, the space utilization rate of the battery pack is improved, the volume of the battery pack is reduced, and the production cost of the battery pack is reduced.

The vehicle according to the embodiment of the third aspect of the utility model includes the battery pack according to the embodiment of the second aspect of the utility model.

According to the vehicle of the embodiment of the present utility model, the safety performance of the vehicle is improved, the production cost of the vehicle is reduced, and the assembly space of the battery pack is reduced by providing the battery pack of the above-mentioned embodiment of the second aspect.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial ", "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying No device or element must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, "plurality" means two or more, unless otherwise specifically defined.

In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connection, or integration; it can be mechanical connection, electrical connection, or communication; it can be direct connection or indirect connection through an intermediary, it can be the internal communication of two components or the interaction of two components relation. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structures, materials or features are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications, the scope of the present invention is defined by the claims and their equivalents.

Claims (10)

1. A battery module, comprising: A plurality of battery cells, the plurality of battery cells are arranged in the width direction of themselves, and the poles of each of the battery cells are located at both ends of the battery cell in the length direction; a PCB board, the PCB board extends along the length direction of the battery cell, and the PCB board is arranged at one end of the battery cell in the length direction; An adapter, the adapter extends from the one end of the battery cell in the length direction to the other end, one end of the adapter is connected to the pole, and the other end of the adapter Connect with the PCB board. 2. The battery module according to claim 1, wherein a communication connector is provided on the PCB, and the other end of the adapter is connected to the communication connector. 3. The battery module according to claim 2, further comprising: an aluminum bar assembly, the aluminum bar assembly includes a plurality of aluminum bar connectors, and the aluminum bar connectors are connected between every two adjacent Between the poles of the battery cells, and the one end of the adapter piece is connected to each of the aluminum bar connectors. 4 . The battery module according to claim 3 , wherein the PCB board is connected to the aluminum bar connecting piece through a collecting piece. 5 . 5 . The battery module according to claim 4 , wherein a safety strip is provided on the adapter, and a plurality of safety narrow diameters are formed on the safety strip. 6 . 6. The battery module according to any one of claims 1-5, wherein each of the battery cells has an explosion-proof valve, and the explosion-proof valve is arranged at the height of each of the battery cells One side of the surface in the direction. 7. The battery module according to any one of claims 1-5, further comprising: a tray, the tray is arranged at the lower part of the plurality of battery cells for carrying the battery cells body. 8. The battery module according to claim 7, further comprising: a cover plate, the cover plate covers both ends of the battery cell in the length direction, and the cover plate and the connected to the tray. 9. A battery pack, comprising the battery module according to any one of claims 1-8. 10. A vehicle, comprising the battery pack according to claim 9.

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