CN215578816U

CN215578816U - Battery module and battery box

Info

Publication number: CN215578816U
Application number: CN202122093029.7U
Authority: CN
Inventors: 杨强; 徐卫东; 张男
Original assignee: Xiamen Haichen New Energy Technology Co Ltd
Current assignee: Xiamen Hithium Energy Storage Technology Co Ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-01-18
Anticipated expiration: 2031-08-31

Abstract

The utility model discloses a battery module and a battery box, wherein the battery module comprises: the battery pack comprises a bracket, a battery and a battery pack, wherein a battery accommodating space is formed in the bracket; the battery units are arranged in the battery accommodating space and are arranged in a row-to-row mode, the electrode end parts of two adjacent battery units are oppositely arranged, and the positive electrode end part is higher than the negative electrode end part; the first end of the electric connector is connected to the positive end of one battery cell, the second end of the electric connector is connected to the negative end of the other adjacent battery cell, and the first end of the electric connector is higher than the second end of the electric connector. The first end of the electric connecting piece is higher than the second end, so that when the electric connecting piece is connected to the positive end part and the negative end part, the electric connecting piece can be well matched on two adjacent battery units, and the assembly of the electric connecting piece and the integrity of the support are prevented from being influenced.

Description

Battery module and battery box

Technical Field

The utility model relates to the field of battery modules, in particular to a battery module and a battery box.

Background

Under the pressure of energy crisis and environmental pollution problems, safety, environmental protection, and energy conservation are becoming more and more important in the current social development. Therefore, the energy storage device is more and more widely applied due to the characteristics of energy conservation, environmental protection and no pollution, and for example, the energy storage device can be applied to a plurality of application fields such as electric vehicles and electronic equipment.

In the related art, it is inconvenient for the electrical connection members between the batteries to be connected with the positive and negative electrodes of the batteries, that is, the positive electrode is higher than the negative electrode due to the structural limitation of the positive and negative electrodes of the batteries, so that the electrical connection members cannot be well connected with the positive and negative electrodes during connection, and the electrical connection strength of the battery module is reduced.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. To this end, it is an object of the present invention to provide a battery module in which a first end of an electrical connector is disposed higher than a second end so that the electrical connector can be well fitted to adjacent two battery cells when the electrical connector is connected to a positive electrode terminal and a negative electrode terminal.

The utility model also provides a battery box.

According to an embodiment of the first aspect of the utility model, a battery module includes: the battery pack comprises a bracket, a battery and a battery pack, wherein a battery accommodating space is formed in the bracket; the battery units are arranged in the battery accommodating space and are arranged in a row-to-row mode, the electrode end parts of two adjacent battery units are oppositely arranged, and the positive electrode end part is higher than the negative electrode end part; the first end of the electric connector is connected to the positive end of one battery cell, the second end of the electric connector is connected to the negative end of the other adjacent battery cell, and the first end of the electric connector is higher than the second end of the electric connector.

According to the battery module, the first end of the electric connecting piece is higher than the second end, so that when the electric connecting piece is connected to the positive end and the negative end, the electric connecting piece can be well matched on two adjacent battery cells, and the assembly of the electric connecting piece and the integrity of the support are prevented from being influenced.

According to some embodiments of the utility model, the electrical connection comprises: the first connecting section is higher than the third connecting section, the first connecting section is provided with a first end of the electric connecting piece, and the third connecting section is provided with a second end of the electric connecting piece.

According to some embodiments of the utility model, the outer surface of the bracket is provided with a support part, and the first connecting section is attached to the support part.

According to some embodiments of the utility model, the number of the supporting portions is at least two, and at least two supporting portions are arranged at intervals in a length direction of the first connecting section.

According to some embodiments of the utility model, the supporting portion is provided with a first limiting portion, the first connecting section is provided with a second limiting portion, and the first limiting portion is in limiting fit with the second limiting portion.

According to some embodiments of the utility model, one of the first and second position-limiting parts is provided as a position-limiting projection and the other is provided as a position-limiting hole, the position-limiting projection being fitted in the position-limiting hole.

According to some embodiments of the utility model, the outer surface of the bracket is provided with a third position-limiting part, and the third position-limiting part is arranged on at least one side of the width direction of the first connecting section and is in position-limiting fit with at least one side of the width direction of the first connecting section.

According to some embodiments of the utility model, the third position-limiting part is connected with the supporting part and has a height greater than that of the supporting part.

According to some embodiments of the utility model, the first connecting section and the third connecting section are arranged in parallel, an included angle between the first connecting section and the second connecting section is α, and α satisfies a relation: alpha is more than or equal to 120 degrees and less than 180 degrees.

According to a second aspect embodiment of the present invention, a battery case includes: the battery module of box and above-mentioned embodiment, the battery module set up in the box.

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

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a battery case according to an embodiment of the present invention;

fig. 2 is an exploded view of a battery case according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a battery module according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a stent according to an embodiment of the present invention;

FIG. 5 is a partial schematic view of FIG. 4;

FIG. 6 is a schematic diagram of an electrical connector according to an embodiment of the utility model.

100. A battery box;

10. a battery module; 11. a battery cell; 12. a support; 121. a battery accommodating space; 122. avoiding holes; 123. a first limiting part; 124. a support portion; 125. a third limiting part; 13. an electrical connection; 131. a first connection section; 132. a second connection section; 133. a third connection section; 134. a second limiting part; 135. a first end; 136. a second end; 14. a harness snap-in portion; 15. a stent body; 16. flanging;

20. a box body; 21. a first enclosure; 22. a second enclosure;

30. a handle.

Detailed Description

The following describes a battery module 10 according to an embodiment of the present invention with reference to fig. 1 to 6, and the present invention also proposes a battery case 100 having the above battery module 10.

As shown in fig. 1 to 6, a battery module 10 according to an embodiment of the first aspect of the present invention includes: the battery comprises a plurality of battery monomers 11, a support 12 and an electric connector 13, wherein the battery monomers 11 are arranged in a row, a battery accommodating space 121 is formed in the support 12, the battery monomers 11 are arranged in the battery accommodating space 121, that is, the support 12 can clamp the battery monomers 11 together, and the battery monomers 11 can be fixed through the support 12, so that the connection stability among the battery monomers 11 can be improved. Specifically, be formed with battery accommodation space 121 in the support 12, a plurality of battery monomer 11 set up in battery accommodation space 121 to a plurality of battery monomer 11 arrange with the mode of row in line, and a plurality of battery accommodation space 121 also arrange for the mode of row in line promptly, so, a plurality of battery accommodation space 121 and a plurality of battery monomer 11 one-to-one can promote single battery monomer 11's installation stability like this.

The support 12 is provided with an avoiding hole 122 at an electrode end portion corresponding to the battery cell 11, so that the electrode end portion of the battery cell 11 may be opposite to the avoiding hole 122, and the electrical connection member 13 may pass through the avoiding hole 122 and be connected to the electrode end portion.

And, the electrode end portions of the two adjacent battery cells 11 are oppositely arranged, the two ends of the electrical connection member 13 are arranged in the avoidance hole 122, and the two ends of the electrical connection member 13 are respectively connected between the electrode end portions of the two adjacent battery cells 11. Specifically, the electrode ends of the adjacent two battery cells 11 are oppositely disposed, and the positive electrode end is higher than the negative electrode end, and the first end 135 of the electrical connection member 13 is connected to the positive electrode end of one battery cell 11, and the second end 136 is connected to the negative electrode end of the adjacent other battery cell 11. With this arrangement, the first end 135 of the electrical connector 13 is connected to the positive end of one of the battery cells 11, and the second end 136 of the electrical connector 13 is connected to the negative end of the other battery cell 11, that is, the two adjacent battery cells 11 can be electrically connected by the electrical connector 13.

Further, the first end 135 of the electrical connector 13 is higher than the second end 136. The first end 135 of the electric connecting piece 13 is fixedly connected with the positive end part, the second end 136 of the electric connecting piece 13 is fixedly connected with the negative end part, the positive end part is higher than the negative end part, the first end 135 of the electric connecting piece 13 is set to be higher than the second end 136, so that when the electric connecting piece 13 is connected to the positive end part and the negative end part, the electric connecting piece 13 can be well matched on two adjacent battery units 11, and the assembly of the electric connecting piece 13 and the integrity of the support 12 are prevented from being influenced.

Thus, the first end 135 of the electrical connecting member 13 is set higher than the second end 136, so that when the electrical connecting member 13 is connected to the positive electrode end and the negative electrode end, the electrical connecting member 13 can be well fitted on the adjacent two battery cells 11, and the assembly of the electrical connecting member 13 and the integrity of the bracket 12 are not affected.

As shown in fig. 6, the electrical connector 13 includes: a first connection section 131, a second connection section 132 and a third connection section 133, the second connection section 132 being connected obliquely between the first connection section 131 and the third connection section 133, the first connection section 131 being higher than the third connection section 133, the first connection section 131 being provided with a first end 135 of the electrical connector 13, and the third connection section 133 being provided with a second end 136 of the electrical connector 13. So, second linkage segment 132 slope sets up between first linkage segment 131 and second linkage segment 132 for first linkage segment 131 is higher than third linkage segment 133, thereby makes things convenient for first linkage segment 131 and positive end connection, and makes things convenient for third linkage segment 133 and negative end connection. Wherein, be provided with welding end point on the third linkage segment 133, first linkage segment 131 also is provided with welding end point, so, makes things convenient for third linkage segment 133 to weld on the negative pole tip to and make things convenient for first linkage segment 131 to weld on anodal tip.

In addition, as shown in fig. 5, a support portion 124 is provided on the outer surface of the holder 12, and the first connecting section 131 is attached to the support portion 124. With the arrangement, when the electric connecting piece 13 is installed, the electric connecting piece 13 can be placed on the supporting part 124, the first connecting section 131 is attached to the supporting part 124, and the electric connecting piece 13 is pre-positioned, so that the pre-positioning of the electric connecting piece 13 can be facilitated. In addition, the support portion 124 is provided on the bracket 12 such that the height of the positive electrode end portion is the same as the height of the support portion 124, so that the middle portion of the electrical connector 13 can be placed on the support portion 124 while the electrically connected first end 135 is fixedly connected to the positive electrode end portion, and thus the installation stability of the electrical connector 13 can be improved.

Referring to fig. 4 and 5, the number of the supporting portions 124 is at least two, and the at least two supporting portions 124 are spaced apart from each other in the longitudinal direction of the first connecting section 131. That is, when the electrical connector 13 is connected between the positive and negative electrode ends, the at least two supporting portions 124 are supported in the width direction of the electrical connector 13, thus improving the mounting stability of the electrical connector 13.

As shown in fig. 4-6, the supporting portion 124 is provided with a first position-limiting portion 123, the first connecting section 131 is provided with a second position-limiting portion 134, and the first position-limiting portion 123 is in position-limiting fit with the second position-limiting portion 134. That is, the first position-limiting portion 123 is provided on the bracket 12, and the second position-limiting portion 134 is provided on the first connecting section 131, so that the first position-limiting portion 123 and the second position-limiting portion 134 are in position-limiting engagement, so that the electrical connection member 13 can be defined on the bracket 12 when the battery module 10 is assembled, and thus, the fixation of the electrical connection member 13 can be facilitated. And, each support portion 124 is provided with a first position-limiting portion 123, so that the installation stability of the electrical connector 13 can be further improved. At least two second limiting parts 134 are correspondingly arranged on the electric connecting piece 13.

Referring to fig. 4 to 6, one of the first and second position-limiting

parts

123 and 134 is provided as a position-limiting protrusion, and the other is provided as a position-limiting hole, the position-limiting protrusion being fitted in the position-limiting hole. That is to say, the electrical connector 13 and the bracket 12 can realize the prepositioning of the electrical connector 13 through the limiting matching between the limiting protrusion and the limiting hole, thereby facilitating the welding of the electrical connection. And, the limit protrusions and the limit holes are simply formed, i.e., the production of the battery case 100 is simplified.

Further, as shown in fig. 4-6, the first position-limiting portion 123 may be a position-limiting protrusion, and the second position-limiting portion 134 is a position-limiting hole, that is, a position-limiting protrusion is disposed on the bracket 12, wherein the position-limiting protrusion may be integrally formed on the bracket 12, and a position-limiting hole is disposed on the electrical connector 13, that is, a position-limiting hole may be formed by directly punching a hole on the electrical connector 13. So, the setting of spacing arch and spacing hole is more reasonable to and convenient production.

As shown in fig. 4 and 5, the outer surface of the bracket 12 is provided with a third position-limiting portion 125, the third position-limiting portion 125 is disposed on at least one side of the width direction of the first connecting section 131, and the third position-limiting portion 125 is in position-limiting fit with at least one side of the width direction of the first connecting section 131. That is, when the electrical connector 13 is mounted, the electrical connector 13 may be first in limit fit with the third limit portion 125, and then the electrical connector 13 may be fixed by the limit fit of the first limit portion 123 and the second limit portion 134.

As shown in fig. 4 and 5, the third position limiting portion 125 is connected to the supporting portion 124, and the height of the third position limiting portion 125 is greater than the height of the supporting portion 124. That is to say, the third position-limiting portion 125 is connected to one end of the support portion 124, and when there are at least two support portions 124, the third position-limiting portion 125 is connected to the end of at least two support portions 124, so that the third position-limiting portion 125 can improve the structural strength of the support portion 124, and the support portion 124 is more stable when being mounted on the bracket 12. And, the height of third spacing portion 125 is greater than the height of supporting part 124, and the setting can promote electric connector 13's installation stability like this to and when installing electric connector 13, electric connector 13 can lean on spacing cooperation of rethread second spacing portion 134 and first spacing portion 123 of third spacing portion 125, so set up, can promote electric connector 13's installation intensity.

Referring to fig. 6, the first connecting section 131 and the third connecting section 133 are arranged in parallel, and an included angle between the first connecting section 131 and the second connecting section 132 is α, where α satisfies the relation: alpha is more than or equal to 120 degrees and less than 180 degrees. That is, the second connecting section 132 inclined at an angle of 120-180 ° is provided between the first connecting section 131 and the second connecting section 132, so that the integrity of the electrical connector 13 is better, and the electrical connector 13 has no edges and corners, thereby reducing the possibility that the electrical connector 13 damages other structures.

Referring to fig. 5, the third position-limiting portion 125 may be configured in a strip shape, and the third position-limiting portion 125 extends along the length direction of the electrical connector 13. That is, the third limiting portion 125 may be rib-shaped, and the rib-shaped structure is simple, so that the workshop production and processing are facilitated, the process is reduced, and the cost is saved. And, the rib-shaped third position-limiting portion 125 can be conveniently connected with the first position-limiting portion 123. Also, the third stopper portion 125 extends in the longitudinal direction of the electrical connector 13, so that the edge in the width direction of the electrical connector 13 can abut against the third stopper portion 125 when the electrical connector 13 is mounted, thereby facilitating the pre-positioning of the electrical connector 13.

As shown in fig. 2 to 5, the outer surface of the bracket 12 is provided with a plurality of wire harness clamping portions 14, and the plurality of wire harness clamping portions 14 are distributed at intervals on the outer surface of the bracket 12. Wherein, be connected with the pencil on the electric connector 13, can accomodate the pencil through pencil joint portion 14 for battery module 10's wholeness is better. Further, a plurality of battery cells 11 divide into 4 rows, are provided with a set of pencil joint portion 14 between first row battery cell 11 and the second row battery cell 11, are provided with another group of pencil joint portion 14 between third row battery cell 11 and the fourth row battery cell 11, set up like this and can save two sets of pencil joint portions 14, can promote battery module 10's wholeness moreover.

As shown in fig. 3, the holder 12 includes: the support comprises a support body 15 and a flange 16, wherein the flange 16 is arranged at the edge of the support body 15. Wherein, the edge of support body 15 is provided with turn-ups 16, so set up the structural strength that can promote support body 15 to and, set up turn-ups 16 and can increase the distance between support body 15 and the box 20, thereby can provide dodging the space for battery cell 11's tip and electric connector 13, avoid electric connector 13 and battery cell 11's tip and box 20 to take place the friction.

The battery box 100 according to the embodiment of the second aspect of the present invention includes: the case 20 and the battery module 10 of the above embodiment, the battery module 10 is provided in the case 20. Wherein, box 20 is including controlling relative first case shell 21 and the second case shell 22 that sets up, so set up the gravity that can make battery module 10 evenly distributes on first case shell 21 and second case shell 22, fine solution because of the bottom of box 20 bears the problem that gravity makes battery module 10 drop alone, greatly improved battery box 100's life. And the handle 30 is arranged on the same side of the first case shell 21 and the second case shell 22, and the handle 30 is movably connected with the first case shell 21 and the second case shell 22 respectively. That is, be equipped with handle 30 in the same side of first case shell 21 and second case shell 22 to be connected with first case shell 21 and second case shell 22 jointly, so set up, can make the even transmission in handle 30 of gravity through first case shell 21 and second case shell 22 of battery module 10, rather than handle 30 only is connected with first case shell 21 or second case shell 22, can avoid like this because of handle 30 atress is uneven, and then influence personnel's carrying and taking. The battery case 100 of the above embodiment includes: the case 20 and the battery module 10 of the above embodiment, the battery module 10 is provided in the case 20. Wherein, box 20 is including controlling relative first case shell 21 and the second case shell 22 that sets up, so set up the gravity that can make battery module 10 evenly distributes on first case shell 21 and second case shell 22, fine solution because of the bottom of box 20 bears the problem that gravity makes battery module 10 drop alone, greatly improved battery box 100's life. And the handle 30 is arranged on the same side of the first case shell 21 and the second case shell 22, and the handle 30 is movably connected with the first case shell 21 and the second case shell 22 respectively. That is, be equipped with handle 30 in the same side of first case shell 21 and second case shell 22 to be connected with first case shell 21 and second case shell 22 jointly, so set up, can make the even transmission in handle 30 of gravity through first case shell 21 and second case shell 22 of battery module 10, rather than handle 30 only is connected with first case shell 21 or second case shell 22, can avoid like this because of handle 30 atress is uneven, and then influence personnel's carrying and taking.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery module, comprising:

the battery pack comprises a bracket, a battery and a battery pack, wherein a battery accommodating space is formed in the bracket;

the battery units are arranged in the battery accommodating space and are arranged in a row-to-row mode, the electrode end parts of two adjacent battery units are oppositely arranged, and the positive electrode end part is higher than the negative electrode end part;

the first end of the electric connector is connected to the positive end of one battery cell, the second end of the electric connector is connected to the negative end of the other adjacent battery cell, and the first end of the electric connector is higher than the second end of the electric connector.

2. The battery module of claim 1, wherein the electrical connection comprises: the first connecting section is higher than the third connecting section, the first connecting section is provided with a first end of the electric connecting piece, and the third connecting section is provided with a second end of the electric connecting piece.

3. The battery module according to claim 2, wherein a support part is provided on an outer surface of the holder, and the first connecting section is attached to the support part.

4. The battery module according to claim 3, wherein the number of the supporting parts is at least two, and at least two of the supporting parts are spaced apart in a length direction of the first connecting section.

5. The battery module according to claim 3, wherein the support portion is provided with a first limiting portion, the first connecting section is provided with a second limiting portion, and the first limiting portion is in limiting fit with the second limiting portion.

6. The battery module according to claim 5, wherein one of the first stopper portion and the second stopper portion is provided as a stopper protrusion and the other is provided as a stopper hole, the stopper protrusion being fitted in the stopper hole.

7. The battery module according to claim 3, wherein the outer surface of the bracket is provided with a third limiting portion, and the third limiting portion is disposed on at least one side of the first connecting section in the width direction and is in limiting fit with at least one side of the first connecting section in the width direction.

8. The battery module according to claim 7, wherein the third position-limiting part is connected to the support part and has a height greater than that of the support part.

9. The battery module according to claim 2, wherein the first connecting section and the third connecting section are arranged in parallel, an included angle between the first connecting section and the second connecting section is α, and α satisfies the relation: alpha is more than or equal to 120 degrees and less than 180 degrees.

10. A battery box, comprising:

a box body;

the battery module according to any one of claims 1 to 9, which is provided to the case.