CN214898646U

CN214898646U - Battery module

Info

Publication number: CN214898646U
Application number: CN202120350271.5U
Authority: CN
Inventors: 夏稳; 彭升政
Original assignee: Kunshan Ju Innovative Energy Technology Co Ltd
Current assignee: Kunshan Ju Innovative Energy Technology Co Ltd
Priority date: 2021-02-05
Filing date: 2021-02-05
Publication date: 2021-11-26
Anticipated expiration: 2031-02-05

Abstract

The utility model discloses a battery module, including box, battery pack, upper cover and first bundle line bridge. Wherein, be provided with the holding chamber in the box, battery pack holds in the holding chamber. The upper cover is connected to the box body and used for packaging the battery pack in the accommodating cavity, and a strip-shaped groove is formed in the upper cover. The first cable tie bridge is fixed in the upper cover and arranged in the strip-shaped groove, and the first cable tie bridge is used for binding the first rope. Through setting up the bar groove on the upper cover, first bundle of line bridge when satisfying can be used for tying up the first rope that has bigger size, can not compare in the upper surface protrusion of upper cover, or the convex part is less, has effectively improved the influence that first bundle of line bridge produced in the assembling process.

Description

Battery module

Technical Field

The utility model relates to a battery technology field especially relates to battery module.

Background

When the battery module is actually used, the battery module needs to be connected with other parts by using a binding wire or a binding rope. In the related art, some of the cable ties in the battery module are required to bind thick cables or ropes, which causes the cable ties to protrude outward more than the side to which they are fixed, thereby affecting the assembly.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a battery module can effectively improve the assembly condition.

According to an aspect of the utility model provides a battery module, include:

the box body is internally provided with an accommodating cavity;

the battery assembly is accommodated in the accommodating cavity;

the upper cover is connected to the box body and used for packaging the battery assembly in the accommodating cavity, and a strip-shaped groove is formed in the upper cover;

the first cable tie bridge is fixed on the upper cover and arranged in the strip-shaped groove and used for binding the first rope.

According to the utility model discloses battery module has following beneficial effect at least:

through setting up the bar groove on the upper cover, first bundle of line bridge when satisfying can be used for tying up the first rope that has bigger size, can not compare in the upper surface protrusion of upper cover, or the convex part is less, has effectively improved the influence that first bundle of line bridge produced in the assembling process.

According to the utility model discloses a some embodiments, first bundle of bridge is provided with a plurality ofly, each first bundle of bridge is followed the extending direction in bar groove sets gradually, the threading direction homogeneous phase of first bundle of bridge, the threading direction of first bundle of bridge with there is the contained angle between the extending direction in bar groove.

According to the utility model discloses a some embodiments still include second cable tie bridge, second cable tie bridge is provided with even number, be symmetrically distributed in the both sides of first cable tie bridge, second cable tie bridge is used for binding the second rope, the cross sectional area of second rope is less than the cross sectional area of first rope.

According to some embodiments of the utility model, battery pack includes first battery, second battery and connecting piece, first battery with the second battery is crisscross set up in the holding chamber, the connecting piece respectively with first battery the second battery electricity is connected.

According to some embodiments of the utility model, still include the hot plate, the hot plate laminate in the side of first battery with the side of second battery, and hold in the holding chamber.

According to some embodiments of the utility model, the connecting piece includes first linkage segment, extension and second linkage segment, the one end of extension is fixed in first linkage segment, the other end of extension is fixed in the second linkage segment, first linkage segment electricity connect in first battery the second linkage segment electricity connect in the second battery, or first linkage segment electricity connect in the second battery the second linkage segment electricity connect in the first battery.

According to the utility model discloses a some embodiments still include the wire group, the wire group includes many wires, the one end of wire with first battery or the second battery electricity is connected, the other end of wire is used for being connected with the check out test set electricity.

According to some embodiments of the utility model, still include the wiring harness, the wiring harness hold in the holding chamber, be provided with wiring harness groove and joint hole on the wiring harness, the electrode of first battery or the electrode joint of second battery in the joint hole, the wire distribute in wiring harness groove.

According to the utility model discloses a some embodiments, be provided with the bar hole on the bottom surface of box symmetrically, the bar hole is used for the heat dissipation.

According to the utility model discloses a some embodiments still include the installing support, the installing support is fixed in the box, the installing support be used for with the box is installed in predetermineeing the position.

Additional aspects and advantages of the invention 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 invention.

Drawings

The invention will be further described with reference to the following drawings and examples, in which:

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

fig. 2 is a schematic perspective view of an upper cover in an embodiment of the present invention;

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

fig. 4 is a top view of a battery module (excluding an upper cover, a first wire binding bridge and a second wire binding bridge) according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;

fig. 6 is a schematic perspective view of a wire harness according to an embodiment of the present invention;

fig. 7 is a bottom view of the battery module according to the embodiment of the present invention.

Reference numerals: the battery pack comprises a box body 100, a heating plate 110, a strip-shaped hole 120, a mounting bracket 130, a battery assembly 200, a first battery 210, a second battery 220, a connecting piece 230, a first connecting section 231, a second connecting section 232, an extension section 233, a positioning groove 234, an upper cover 300, a strip-shaped groove 301, a first binding bridge 310, a second binding bridge 320, a binding member 400, a bottom plate 410, a partition plate 420, a positioning block 421, a binding groove 430, a clamping hole 440 and a wire group 500.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means is one or more, a plurality of means is two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means 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 present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

A battery module according to an embodiment of the present invention is described below with reference to fig. 1 to 7.

According to an aspect of the present invention, a battery module includes a case 100, a battery assembly 200, an upper cover 300, and a first cable bridge 310.

Wherein, a containing cavity is arranged in the box body 100, and the battery assembly 200 is contained in the containing cavity. The upper cover 300 is connected to the case 100, the upper cover 300 is used for packaging the battery assembly 200 in the accommodating cavity, and the upper cover 300 is provided with a strip-shaped groove 301. The first wire binding bridge 310 is fixed on the upper cover 300 and arranged in the strip-shaped groove 301, and the first wire binding bridge 310 is used for binding a first rope.

Specifically, as shown in fig. 1 and 2, the battery module includes a case 100, a battery pack 200, an upper cover 300, and a first cable bridge 310. The box 100 is rectangular, and has a receiving cavity therein, which is also rectangular. Meanwhile, an opening having the same size as the bottom surface of the receiving chamber is provided on the upper surface of the case 100, so that the receiving chamber can communicate with the external environment. Battery pack 200 is the storage battery for provide the electric energy, its holistic shape is similar with the shape in holding chamber, and the size equals or slightly is less than the size in holding chamber to make battery pack 200 can place in the holding chamber, can not take place to rock.

The upper cover 300 is connected to the upper surface of the case 100 by a fastening member or a fastening groove, and the edge of the upper cover is attached to the upper surface of the case 100, so as to encapsulate the battery pack 200 in the accommodating cavity. A strip-shaped groove 301 is formed in the middle of the upper surface of the upper cover 300, and the first cable tie bridge 310 is arranged in the strip-shaped groove 301.

The first cable bridge 310 is in an arch bridge shape and is fixed on the bottom surface of the strip-shaped groove 301 through an integrated molding or a connection manner such as a clamping groove buckle. The middle part of the joint of the first cable tie bridge 310 and the bottom surface of the strip-shaped groove 301 is provided with a through hole, and the through hole is used for enabling a first rope to pass through, so that the first rope is conveniently bound on the first cable tie bridge 310. The first rope may be a binding wire made of plastic or a common hemp rope, and the specific type is not limited. At this time, the uppermost end of the first cable bridge 310 may extend out of the strip-shaped groove 301, or may be completely accommodated by the strip-shaped groove 301, and it can be understood that the distance between the uppermost end of the first cable bridge 310 and the upper surface of the upper cover 300 may be adaptively adjusted according to the requirements during assembly.

It will be understood that such a design enables the battery module to be better assembled with other devices while not affecting the assembly of the battery module because the first cable bridge 310 protrudes too much with respect to the upper surface of the upper cover 300.

As an improvement of the above scheme, in order to facilitate manufacture and installation, when the box body 100 is long, the upper cover 300 can be disassembled into a plurality of pieces, and then the pieces are sequentially arranged on the box body 100 and combined into a whole in a buckling and clamping groove splicing manner.

In some embodiments of the present invention, the first cable tie bridges 310 are provided with a plurality of cable tie bridges 310, each of the cable tie bridges 310 is sequentially arranged along the extending direction of the strip-shaped groove 301, the threading directions of the first cable tie bridges 310 are the same, and an included angle exists between the threading direction of the first cable tie bridge 310 and the extending direction of the strip-shaped groove 301.

Specifically, as shown in fig. 1 and 2, the number of the first wire-tying bridges 310 is at least two, and the first wire-tying bridges are arranged in a row in the strip-shaped groove 301. It is understood that the hole axes of the through holes disposed on the first wire-binding bridges 310 are the threading directions of the first wire-binding bridges 310, at this time, the hole axes of the through holes on the first wire-binding bridges 310 are all parallel to each other, and an included angle exists between the hole axes and the extending directions of the strip-shaped grooves 301, that is, the extending directions of the hole axes of the through holes on the first wire-binding bridges 310 are intersected with or perpendicular to the extending directions of the strip-shaped grooves 301. It will be appreciated that the design is such that the first plurality of cords do not interfere with each other when each is tied to a different first cable tie bridge 310.

In some embodiments of the present invention, the rope-binding device further comprises a second rope-binding bridge 320, the second rope-binding bridge 320 is provided with an even number, and symmetrically distributed on both sides of the first rope-binding bridge 310, the second rope-binding bridge 320 is used for binding the second rope, and the cross-sectional area of the second rope is smaller than that of the first rope.

Specifically, as shown in fig. 1 and 2, the second cable bridge 320 is also arch-shaped, fixed on the upper surface of the upper cover 300 by integrally forming or fastening the cable bridge in a slot or other connection manner, and symmetrically distributed at the edge of the upper cover 300. A through hole is formed in the middle of the connection between the second cable bridge 320 and the upper cover 300, and the through hole is used for the second cable to pass through, so that the second cable is conveniently bound to the second cable bridge 320.

The second rope can be the ligature or ordinary rope made of plastics etc. of restricting, and it has the difference with first rope in size, and the second rope is thinner than first rope promptly, can understand, because of setting up on the both sides of upper cover 300, its main purpose is not bearing great power, but is used for tying up with other parts and ties up and be connected, so does not have too high requirement to the size of the cross sectional area of second rope, and such design has also effectively reduced the size of second rope bridge 320 for battery module's assembly is more convenient.

In some embodiments of the present invention, the battery assembly 200 includes a first battery 210, a second battery 220 and a connecting member 230, the first battery 210 and the second battery 220 are alternately disposed in the accommodating cavity, the connecting member 230 is electrically connected to the first battery 210 and the second battery 220, and the connecting member 230 is used for serially connecting the adjacent first battery 210 and the adjacent second battery 220.

Specifically, as shown in fig. 3, the battery assembly 200 includes a first battery 210, a second battery 220, and a connection member 230. The first battery 210 and the second battery 220 are alternately installed in the accommodating cavity, that is, the first battery 210 is not attached to the first battery 210, and the second battery 220 is not attached to the second battery 220. The first battery 210 and the second battery 220 are substantially the same battery, but the installation directions of the two batteries are different, that is, when the batteries are installed in the accommodating cavities, the positive electrode of the first battery 210 points to the negative electrode, and the direction of the positive electrode of the second battery 220 points to the negative electrode is just opposite. In order to prevent the first battery 210 and the second battery 220 from shaking in the accommodating cavity, the length of one side of the bottom surface of the accommodating cavity is just or slightly greater than the length of the first battery 210 or the second battery 220, and the length of the other side of the bottom surface of the accommodating cavity is just or slightly greater than the sum of the widths of the first battery 210 and the second battery 220.

The connecting member 230 is used to connect two adjacent first cells 210 and two adjacent second cells 220 in series. The connection member 230 includes a first connection section 231 and a second connection section 232, and when the first connection section 231 is electrically connected to the positive electrode of the first battery 210, the second connection section 232 is electrically connected to the negative electrode of the second battery 220; when the first connection section 231 is electrically connected to the negative electrode of the first battery 210, the second connection section 232 is electrically connected to the positive electrode of the second battery 220.

It can be understood that, due to the design, the circuit inside the battery assembly 200 is regular and simple, and the error rate in the process of connecting the circuits in series is effectively reduced.

In some embodiments of the present invention, the heating plate 110 is further included, the heating plate 110 is attached to the side of the first battery 210 and the side of the second battery 220 and is accommodated in the accommodating cavity, and the heating plate 110 is used for heating the first battery 210 and the second battery 220.

Specifically, as shown in fig. 4 and 5, the heating plate 110 is disposed in the accommodating cavity and located at a side where the side surfaces of the first battery 210 and the second battery 220 have smaller areas, and the heating plate is used for heating the first battery 210 and the second battery 220 through internal resistance wires or heat-conducting media such as heat-conducting liquid, so that the length of the heating plate 110 can ensure that the side surfaces of each of the first battery 210 and the second battery 220 can be attached to the heating plate 110. It can be understood that the design of the heating plate 110 is effective in improving the performance of the battery module in a low temperature environment.

In some embodiments of the present invention, the connecting member 230 includes a first connecting section 231, an extension section 233 and a second connecting section 232, one end of the extension section 233 is fixed to the first connecting section 231, the other end of the extension section 233 is fixed to the second connecting section 232, and the extension section 233 is used for extending the creepage distance.

Specifically, as shown in fig. 3 and 4, the connection member 230 includes a first connection section 231, a second connection section 232, and an extension section 233, wherein the first connection section 231 and the second connection section 232 are completely similar in shape and size, but are distributed at different positions of the extension section 233. The extension 233 is in an "n" shape, that is, the middle portion thereof is folded, and is connected to the first connection section 231 and the second connection section 232 by welding or integral molding, respectively.

In practical use, when the first connection section 231 is electrically connected with the positive electrode of the first battery 210, the second connection section 232 is electrically connected with the negative electrode of the second battery 220; when the first connection section 231 is electrically connected to the negative electrode of the first battery 210, the second connection section 232 is electrically connected to the positive electrode of the second battery 220. In the process, the creepage distance is effectively prolonged by the design of the extension section 233, and the safety of the battery module is improved.

In some embodiments of the present invention, the battery pack further includes a wire set 500, the wire set 500 includes a plurality of wires, one end of the wire is electrically connected to the first battery 210 or the second battery 220, the other end of the wire is electrically connected to the detection device, and the wire is used to enable the detection device to detect the first battery 210 or the second battery 220.

Specifically, as shown in fig. 4, the lead set 500 is composed of a plurality of leads, and functions to enable the detection device to perform real-time monitoring on the first battery 210 or the second battery 220 in the battery module. One end of each wire is electrically connected to the detection device through a unified plug or a bus bar, and the other end of each wire is electrically connected to the same or different electrode of the first battery 210 or the second battery 220. It can be appreciated that the design of the lead set 500 enables real-time monitoring of the performance of the first battery 210 or the second battery 220, thereby improving the safety of the battery module.

In some embodiments of the present invention, the wire harness 400 is further included, the wire harness 400 is accommodated in the accommodating cavity, the wire harness 400 is provided with a wire harness slot 430 and a clamping hole 440, the electrode of the first battery 210 or the electrode of the second battery 220 is clamped in the clamping hole 440, the wires are distributed in the wire harness slot 430, and the wire harness slot 430 is used for guiding the extending direction of the wires.

Specifically, since there are many wires in the wire set 500, there is a problem that the wires are tangled and disordered during the assembly process. To solve this technical problem, a wire harness 400 is provided.

As shown in fig. 4 and 6, the wire harness 400 is placed in the receiving cavity and is formed by splicing the bottom plate 410 and the partition plate 420, the wire harness slot 430 is defined by the bottom plate 410 and the partition plate 420 cooperating with each other, the snap-in hole 440 is formed in the bottom plate 410, and the size and shape of the snap-in hole 440 are similar to those of the electrode of the first battery 210 or the electrode of the second battery 220, so that the electrode of the first battery 210 or the electrode of the second battery 220 can be inserted into the snap-in hole 440, and the wire harness 400 cannot move relative to the first battery 210 or the second battery 220.

It can be understood that the wires electrically connected to the electrode of the first battery 210 or the electrode of the second battery 220 are more orderly under the constraint of the wire-tying groove 430, and the wire-tying groove 430 guides the wires to be arranged according to a set route, thereby effectively avoiding the occurrence of entanglement between different wires.

As an improvement of the above solution, the positioning groove 234 is disposed on the side surfaces of the first connecting section 231 and the second connecting section 232 close to the inner wall of the accommodating chamber, the positioning groove 234 is in a notch shape, and in the wire harness 400, the side surface of the partition plate 420 close to the inner wall of the accommodating chamber facing the connecting member 230 is disposed with the positioning block 421 matched with the positioning groove 234, that is, the positioning block 421 has the same shape as the positioning groove 234, and the size of the positioning block 421 is greater than or equal to the size of the positioning groove 234, so that the positioning block 421 can be tightly or just clipped into the positioning groove 234. It can be understood that the design is such that the connection member 230 does not move relative to the first battery 210 or the second battery 220 when the first battery 210 and the second battery 220 are connected in series, thereby effectively avoiding the occurrence of an open circuit.

As a modification of the above solution, positioning grooves 234 are also provided on the sides of the first connecting section 231 and the second connecting section 232 away from the inner wall of the accommodating cavity, and the positioning grooves 234 are symmetrically distributed at this time. Due to the design, the connecting piece 230 does not need to adjust the installation direction when in use, so that the installation is more convenient. Meanwhile, the first connection section 231 or the second connection section 232 far from the positioning groove 234 on the inner wall of the accommodating cavity can also be used for clamping the lead, so that one end of the lead electrically connected with the first battery 210 or the second battery 220 can be better restrained.

In some embodiments of the present invention, the bottom surface of the box 100 is symmetrically provided with bar-shaped holes 120, and the bar-shaped holes 120 are used for heat dissipation.

Specifically, as shown in fig. 7, a plurality of strip-shaped through holes, i.e., strip-shaped holes 120, are provided on the bottom surface of the case 100, and the arrangement of the strip-shaped holes 120 enables the operating heat of the first battery 210 or the second battery 220 to be dissipated to the external environment. Meanwhile, in order to uniformly dissipate heat from both sides of the first battery 210 and the second battery 220, the strip holes 120 are symmetrically distributed two by two.

In some embodiments of the present invention, the present invention further comprises a mounting bracket 130, the mounting bracket 130 is fixed to the box body 100, and the mounting bracket 130 is used to mount the box body 100 at a predetermined position.

Specifically, as shown in fig. 1, the mounting brackets 130 are mounted on both sides of the box 100, the mounting brackets 130 are L-shaped, one side of each mounting bracket 130 is fixed on the side of the box 100 by a fastening means or a fastening means such as a snap-fit connection, and the other side of each mounting bracket 130 is fixed on another element by a fastening means or a fastening means such as a snap-fit connection. It is understood that the mounting bracket 130 is designed such that the battery module can be fixed at a predetermined position where it is desired to be disposed.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

Claims

1. Battery module, its characterized in that includes:

the box body is internally provided with an accommodating cavity;

the battery assembly is accommodated in the accommodating cavity;

2. The battery module according to claim 1, wherein the plurality of first cable bridges are arranged, each first cable bridge is sequentially arranged along the extending direction of the strip-shaped groove, the threading directions of the first cable bridges are the same, and an included angle is formed between the threading direction of the first cable bridge and the extending direction of the strip-shaped groove.

3. The battery module according to claim 1, further comprising an even number of second cable ties symmetrically disposed on both sides of the first cable tie, wherein the second cable tie is used for binding a second rope, and the cross-sectional area of the second rope is smaller than that of the first rope.

4. The battery module according to claim 1, wherein the battery assembly comprises first batteries, second batteries and connecting members, the first batteries and the second batteries are alternately arranged in the accommodating cavities, and the connecting members are electrically connected with the first batteries and the second batteries respectively.

5. The battery module according to claim 4, further comprising a heating plate attached to a side surface of the first battery and a side surface of the second battery and received in the receiving cavity.

6. The battery module as recited in claim 4, wherein the connecting member comprises a first connecting section, an extension section and a second connecting section, one end of the extension section is fixed to the first connecting section, the other end of the extension section is fixed to the second connecting section, the first connecting section is electrically connected to the first battery, the second connecting section is electrically connected to the second battery, or the first connecting section is electrically connected to the second battery, and the second connecting section is electrically connected to the first battery.

7. The battery module according to any one of claims 4 to 6, further comprising a lead set, wherein the lead set comprises a plurality of leads, one end of each lead is electrically connected with the first battery or the second battery, and the other end of each lead is used for being electrically connected with a detection device.

8. The battery module according to claim 7, further comprising a wire harness member, wherein the wire harness member is accommodated in the accommodating cavity, the wire harness member is provided with a wire harness slot and a clamping hole, the electrode of the first battery or the electrode of the second battery is clamped in the clamping hole, and the wires are distributed in the wire harness slot.

9. The battery module according to claim 1, wherein the bottom surface of the case is symmetrically provided with strip-shaped holes for dissipating heat.

10. The battery module according to claim 1, further comprising a mounting bracket fixed to the case, the mounting bracket being configured to mount the case at a predetermined position.