CN219203296U

CN219203296U - Battery module and electronic equipment

Info

Publication number: CN219203296U
Application number: CN202320203450.5U
Authority: CN
Inventors: 朱哲聪
Original assignee: Shanghai Lanjun New Energy Technology Co Ltd
Current assignee: Shanghai Lanjun New Energy Technology Co Ltd
Priority date: 2023-02-13
Filing date: 2023-02-13
Publication date: 2023-06-16
Anticipated expiration: 2033-02-13

Abstract

The utility model belongs to the technical field of batteries, and discloses a battery module and electronic equipment. The battery module comprises a battery body, two end plates and at least one heating film, wherein the two end plates are oppositely arranged at two ends of the battery body along a first direction, and at least one of two side surfaces of the end plates along a second direction is provided with a wire clamping groove; the heating film is attached to the outer wall of one end of the battery body along the second direction, and the lead wire of the heating film is penetrated and fixed in the wire clamping groove; the second direction is perpendicular to the first direction. This battery module can guarantee that the heating film laminates in battery module's side all the time, improves the installation stability of heating film, guarantees the heating effect of heating film.

Description

Battery module and electronic equipment

Technical Field

The present disclosure relates to battery technology, and particularly to a battery module and an electronic device.

Background

The characteristics of the lithium ion power battery are obviously affected by the ambient temperature, especially in a low-temperature environment, the available energy and power of the lithium ion power battery are seriously attenuated, and the aging of the power battery can be accelerated and the service life is shortened after the lithium ion power battery is used in a low-temperature environment for a long time. In a low-temperature environment, the charge and discharge performance of the lithium battery is obviously reduced, the charge and discharge of the battery are difficult, and the starting and charging of the electric automobile in the low-temperature environment are greatly affected.

In order for the battery to operate stably at a suitable operating temperature at low temperatures, it is necessary to heat the lithium ion battery at low temperatures. The existing heating mode is to attach a heating film on the side surface of the battery module, heat the battery unit in the battery module through the heating film, and directly attach the heating film on the side surface of the battery module in a mode of directly using viscose generally, so that the viscose is invalid in a long-term heating and using process of the heating film, and therefore the heating film is triggered to warp or fall off, and the heating efficiency of the battery is reduced.

Therefore, there is a need for improvement in the prior art to solve the technical problems of the heating film of the conventional battery module.

Disclosure of Invention

The utility model aims to provide a battery module and electronic equipment, which can ensure that a heating film is always attached to the side surface of the battery module, improve the mounting stability of the heating film and ensure the heating effect of the heating film.

To achieve the purpose, the utility model adopts the following technical scheme:

the battery module comprises a battery body, two end plates and at least one heating film, wherein the two end plates are oppositely arranged at two ends of the battery body along a first direction, and at least one of two side surfaces of the end plates along a second direction is provided with a wire clamping groove; the heating film is attached to the outer wall of one end of the battery body along the second direction, and the lead wire of the heating film is penetrated and fixed in the wire clamping groove; the second direction is perpendicular to the first direction.

Optionally, the wire clamping groove penetrates through the end plate along the first direction or the third direction, the lead wire is fixed in the wire clamping groove through a fixing piece, and the first direction, the second direction and the third direction are perpendicular to each other.

Optionally, the wire clamping groove is arranged along the first direction, a fixing groove intersecting with the wire clamping groove is formed in a side surface of the end plate along the second direction, and the fixing piece is clamped in the fixing groove and extrudes and fixes the lead wire in the wire clamping groove.

Optionally, the battery module further includes a packing belt, the packing belt is bound around the outer side wall surfaces of the battery body and the end plate, and the packing belt extrudes and fixes the fixing piece in the fixing groove.

Optionally, a plurality of spacing portions that set up along above-mentioned third direction interval are protruding to be equipped with in one side that above-mentioned mounting kept away from above-mentioned fixed slot, and two adjacent above-mentioned spacing portions can spacing above-mentioned packing area.

Optionally, the wire clamping groove is arranged along the third direction, the battery module further comprises a packing belt, the packing belt is bound around the outer side wall surfaces of the battery body and the end plate, and the packing belt is used for fixing the lead wire in the wire clamping groove in a pressing mode.

Optionally, an outer wall surface of one end of the end plate along the first direction is provided with a limiting structure, and the limiting structure is used for limiting and clamping the packing belt.

Optionally, the limiting structure includes a plurality of limiting strips arranged at intervals along the third direction, and two adjacent limiting strips are used for limiting the packing belt.

Optionally, a side surface of the heating film, which is close to the battery body, is adhered with a glue, and the glue is used for adhering the heating film to the outer wall of the battery body.

Another object of the present utility model is to provide an electronic device including the battery module according to any one of the above aspects.

The beneficial effects are that:

according to the battery module, the lead wires of the heating film are fixed through the wire clamping grooves formed in the side faces of the end plates, so that the heating film is fixed on the end plates through the lead wires, after the lead wires at the two ends of the heating film are fixed on the end plates, the heating film is tensioned and fixed, the mounting stability of the heating film is improved, the heating film is prevented from falling off from the side faces of the battery module, the heating film is guaranteed to be always attached to the side faces of the battery module, and the heating effect of the heating film is improved.

Drawings

Fig. 1 is an isometric view of a battery module according to an embodiment of the present utility model;

fig. 2 is an exploded view of a battery module according to an embodiment of the present utility model;

FIG. 3 is a block diagram of a fastener according to a first embodiment of the present utility model;

FIG. 4 is a block diagram of an end plate provided in an embodiment of the present utility model;

fig. 5 is an isometric view of a battery module according to a second embodiment of the present utility model;

fig. 6 is a partial enlarged view at B in fig. 5.

In the figure:

100. a battery body; 200. an end plate; 211. wire clamping groove; 212. a fixing groove; 213. a limit bar; 214. an avoidance groove; 220. a fixing member; 221. a limit part; 300. heating the film; 310. a lead wire; 400. packing belt; 410. an insulating layer.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The first direction in this embodiment is the X direction shown in fig. 1 and 4, that is, the stacking direction of the plurality of battery cells of the battery body 100 and the length direction of the battery module; the second direction is the Y direction shown in fig. 1 and 4, i.e., the width direction of the battery module; the third direction bitmap 1 and the Z direction shown in fig. 4, i.e., the height direction of the battery module; the first direction, the second direction and the third direction are perpendicular to each other.

As shown in fig. 1 and 2, two ends of the heating film 300 used in the present embodiment are respectively extended with a pair of leads 310, each pair of leads 310 includes two leads 310, and the leads 310 are used to electrically connect the heating film 300 with a power supply device, so as to supply power for heating of the heating film 300, which is a conventional arrangement in the art, and will not be described herein.

Referring to fig. 1, 2 and 4, in the present embodiment, the battery module includes a battery body 100, two end plates 200 and at least one heating film 300, wherein the two end plates 200 are oppositely disposed at two ends of the battery body 100 along a first direction, and at least one of two sides of the end plate 200 along a second direction is provided with a wire clamping groove 211; the heating film 300 is attached to an outer wall of one end of the battery body 100 along the second direction, and the lead 310 of the heating film 300 is inserted into and fixed in the wire clamping groove 211; the second direction is perpendicular to the first direction. Specifically, two heating films 300 are provided, and the two heating films 300 are oppositely arranged on the outer walls of the two ends of the battery body along the second direction; in addition, corresponding to the two heating films 300, two side surfaces of the end plate 200 along the second direction are provided with wire clamping grooves 211, which are not described herein.

In the battery module in this embodiment, the lead wire 310 of the heating film 300 is fixed through the wire clamping groove 211 formed on the side surface of the end plate 200, so that the heating film 300 is fixed on the end plate 200 through the lead wire 310, after the lead wires 310 at two ends of the heating film 300 are fixed on the end plate 200, the heating film 300 is tensioned and fixed, the installation stability of the heating film 300 is improved, the heating film 300 is prevented from falling off from the side edge of the battery module, the heating film 300 is ensured to be always attached to the side surface of the battery module, and the heating effect of the heating film 300 is improved.

Further, a glue (not shown) is attached to a side surface of the heating film 300 adjacent to the battery body 100, and the glue is used to attach the heating film 300 to an outer wall of the battery body 100. The adhesive can conveniently attach the heating film 300 to the outer wall of the battery body 100, thereby ensuring the heating effect of the heating film 300 and preventing the heating film 300 from falling off, which will not be described in detail here.

With continued reference to fig. 4, optionally, an outer wall surface of one end of the end plate 200 along the first direction is provided with a limiting structure, where the limiting structure is used for limiting and clamping the packing belt 400. The setting of this limit structure can improve the installation stability of packing belt 400, prevents packing belt 400 from droing to play the guide effect when installing packing belt 400, improve installation effectiveness. Specifically, the limiting structure includes a plurality of limiting strips 213 disposed at intervals along the third direction, and two adjacent limiting strips 213 are used for limiting the strapping band 400. Of course, the end plate 200 may be provided with a limiting groove, so as to limit and fix the packing belt 400, which is not limited in this embodiment, and a person skilled in the art may select a specific structure and a scheme of the limiting structure according to specific requirements.

Optionally, the wire clamping groove 211 is disposed through the end plate 200 along the first direction or the third direction, and the lead wire 310 is fixed in the wire clamping groove 211 by a fixing member 220, where the first direction, the second direction and the third direction are perpendicular to each other. The fixing member 220 described herein is a broad-sense fixing member 220, and may be a detachable fixing member 220 such as a fixing pin, a screw, or the like, or may be an integrally formed limit fixing protrusion structure in the wire clamping groove 211, or may be directly fixed by directly filling glue or attaching adhesive paper in the wire clamping groove 211, or may be extruded and fixed in the wire clamping groove 211 by using the packing belt 400, which is not described herein too much, so long as the wire clamping groove 211 is fixed with the wire clamping groove 310.

Referring to fig. 1 to 4, in an alternative embodiment, the wire clamping groove 211 is disposed along the first direction, a fixing groove 212 intersecting with the wire clamping groove 211 is formed on a side surface of the end plate 200 along the second direction, and the fixing member 220 is clamped in the fixing groove 212 and presses and fixes the lead wire 310 in the wire clamping groove 211. The fixing piece 220 is clamped in the fixing groove 212, so that the lead 310 is extruded and fixed in the clamping groove 211, the stability of installation can be improved, the fixing piece 220 can be detached and is convenient to install, and the installation efficiency is improved.

Further, the battery module further includes a packing belt 400, the packing belt 400 is fastened around the outer side walls of the battery body 100 and the end plate 200, and the packing belt 400 presses and fixes the fixing member 220 in the fixing groove 212. When the packing belt 400 is used for packing and fixing the battery module, the fixing piece 220 is extruded and fixed in the fixing groove 212, and the required extrusion force can be provided without other structures or components, so that the structure of the battery module is simplified, the installation stability of the fixing piece 220 is improved, and the installation of the heating film 300 is more stable.

As a preferred embodiment, referring to fig. 3, a plurality of limiting portions 221 are protruded on a side of the fixing member 220 away from the fixing groove 212, and the two adjacent limiting portions 221 can limit the strapping 400. The setting of the stopper 221 can improve the mounting stability of the packing belt 400, prevent the packing belt 400 from falling off, and play a guiding role in mounting the packing belt 400, thereby improving the mounting efficiency.

Referring to fig. 5 and 6, in another alternative embodiment, the wire clamping groove 211 is formed along the third direction, the battery module further includes a packing belt 400, the packing belt 400 is wrapped around the outer side walls of the battery body 100 and the end plate 200, and the packing belt 400 presses and fixes the lead wires 310 in the wire clamping groove 211. The lead 310 in this embodiment is directly extruded and fixed in the groove of the lead 310 by the packing belt 400, although the installation stability is slightly reduced compared with the above embodiment, the structure is simpler at the time, no extra fixing member 220 is needed, the structure of the battery module is simplified, and the production cost and the processing difficulty are reduced.

As shown in fig. 6, when the packing belt 400 used in the present embodiment has the insulating layer 410, the insulating layer 410 is used to prevent the short circuit caused by the contact between the packing belt 400 and the battery body 100, and since the insulating layer 410 slightly protrudes from the body of the packing belt 400, the end plate 200 is provided with the escape groove 214 at the edge of the end plate 200 adjacent to the insulating layer 410 to prevent the insulating layer 410 from interfering with the insulating layer 410.

The embodiment also provides electronic equipment, which comprises the battery module according to any one of the above schemes. Specifically, the electronic device may be a device requiring power supply, such as a battery pack, an electric car, an electric bicycle, or the like, and is not particularly limited herein. The electronic device has the beneficial effects of the battery module according to any one of the above schemes, and will not be described herein.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. The battery module, its characterized in that includes:

a battery body (100);

the two end plates (200) are oppositely arranged at two ends of the battery body (100) along the first direction, and at least one of two side surfaces of the end plates (200) along the second direction is provided with a clamping slot (211);

at least one heating film (300), wherein the heating film (300) is attached to the outer wall of one end of the battery body (100) along the second direction, and a lead (310) of the heating film (300) is penetrated and fixed in the wire clamping groove (211); the second direction is perpendicular to the first direction.

2. The battery module according to claim 1, wherein the wire clamping groove (211) is provided through the end plate (200) along the first direction or the third direction, the lead wires (310) are fixed in the wire clamping groove (211) through fixing members (220), and the first direction, the second direction and the third direction are perpendicular to each other.

3. The battery module according to claim 2, wherein the wire clamping groove (211) is provided along the first direction, a fixing groove (212) intersecting with the wire clamping groove (211) is provided at a side surface of the end plate (200) along the second direction, and the fixing piece (220) is clamped in the fixing groove (212) and extrudes and fixes the lead wire (310) in the wire clamping groove (211).

4. The battery module according to claim 3, further comprising a packing belt (400), the packing belt (400) surrounding the outer side wall surfaces of the battery body (100) and the end plate (200), the packing belt (400) pressing and fixing the fixing member (220) in the fixing groove (212).

5. The battery module according to claim 4, wherein a plurality of limiting portions (221) arranged at intervals along the third direction are convexly arranged on one side of the fixing member away from the fixing groove (212), and any two adjacent limiting portions (221) can limit the packing belt (400).

6. The battery module according to claim 2, wherein the wire clamping groove (211) is provided along the third direction, the battery module further comprises a packing belt (400), the packing belt (400) is bound around the battery body (100) and the outer side wall surface of the end plate (200), and the packing belt (400) presses and fixes the lead wires (310) in the wire clamping groove (211).

7. The battery module according to any one of claims 4 to 6, wherein an outer wall surface of one end of the end plate (200) in the first direction is provided with a limiting structure for limiting and locking the packing belt (400).

8. The battery module according to claim 7, wherein the limiting structure includes a plurality of limiting strips (213) disposed at intervals along the third direction, and two adjacent limiting strips (213) are used for limiting the packing belt (400).

9. The battery module according to any one of claims 1 to 6, wherein a gel is attached to a side surface of the heating film (300) adjacent to the battery body (100), and the gel is used for adhering the heating film (300) to an outer wall of the battery body (100).

10. Electronic device, characterized by comprising a battery module according to any of claims 1-9.