CN218586202U

CN218586202U - Battery module

Info

Publication number: CN218586202U
Application number: CN202222711700.4U
Authority: CN
Inventors: 廖勇; 张强; 吴铭立
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2023-03-07
Anticipated expiration: 2032-10-14

Abstract

The utility model belongs to the technical field of the battery, specifically disclose a battery module, this battery module includes two at least battery module, and two battery module clamp establish between first end plate and second end plate to it is fixed through fixed subassembly. Between first end plate and the battery module to and all be provided with heat conduction silica gel pad between second end plate and the battery module, heat conduction silica gel pad can improve the heat-conduction efficiency between battery module and first end plate or the second end plate, improve the radiating effect, when battery module is carrying out high-power charging or when discharging, can rapid cooling, in addition, be provided with the heating film in one side of battery module, can heat and keep warm battery module through the heating film, in order to guarantee that battery module normally works under lower ambient temperature.

Description

Battery module

Technical Field

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

Background

The battery module is the most basic unit of the power battery system, the structure of the battery module directly determines the installation mode, reliability and safety of the battery core, and the assembly efficiency and energy density of the battery module are also influenced. The battery module generally includes basic subassemblies such as core group, electric core support, cylinder manifold, terminal, screw to satisfy battery module's demand in groups, nevertheless above-mentioned battery module can not work under the lower environment of temperature, and when carrying out charge-discharge, battery module's effect is not good, causes battery module's life-span to shorten.

Therefore, a battery module is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a battery module, it can normally work under low temperature environment, and radiating efficiency is higher when charging and discharging.

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

the utility model provides a battery module, this battery module includes:

a first end plate and a second end plate;

the at least two battery modules are clamped between the first end plate and the second end plate and are connected in series or in parallel;

the heat-conducting silica gel pads are arranged between the first end plate and the battery module and between the second end plate and the battery module;

a heating film disposed at one side of the battery module, the heating film being connected to the battery module;

the fixing assembly fixes the first end plate, the heat-conducting silica gel pad, the battery modules and the second end plate into a group.

Optionally, all be equipped with the screw hole on the first end plate with the second end plate, fixed subassembly includes long screw rod and nut, the one end of long screw rod passes in proper order the second end plate battery module with behind the first end plate with the nut can dismantle the connection.

Optionally, battery module includes first support, second support and electric core group, the electric core group is fixed first support with between the second support, first support with all be equipped with on the second support and be used for dodging the hole of dodging of long screw rod.

Optionally, be equipped with anodal run-on the first support, be equipped with the negative pole run-on the second support, anodal run-on with the anodal electrically conductive connection of electric core group, the negative pole run-on with the negative pole electrically conductive connection of electric core group, anodal run-on with the negative pole run-on will a plurality of electric cores in the electric core group are established ties or are parallelly connected.

Optionally, the battery module includes a voltage collector and a collection line, and two ends of the collection line are respectively connected to the voltage collector and the positive connection row.

Optionally, the battery module includes a temperature collector and a temperature sensing line, one end of the temperature sensing line is connected to the temperature collector, and the other end of the temperature sensing line is connected to the surface of the battery cell.

Optionally, the battery module includes a serial row, one end of the serial row is connected to the positive connection row of one of the battery modules, and the other end of the serial row is connected to the negative connection row of the other battery module.

Optionally, the battery module includes a fixing member, the serial row is provided with a fixing hole, and one end of the fixing member passes through the fixing hole and then is fixed on the positive electrode connecting row or the negative electrode connecting row.

Optionally, a plastic cover plate is arranged between two adjacent battery modules.

Optionally, the battery module includes two battery modules, the plastics apron presss from both sides and establishes two between the battery module, fixed subassembly will first end plate, two heat conduction silica gel pad, two battery module the plastics apron with the second end plate is fixed in groups.

The beneficial effects of the utility model are that:

the utility model provides a battery module, this battery module includes two at least battery module, and two battery module clamp establish between first end plate and second end plate, and it is fixed through fixed subassembly, between first end plate and the battery module, and all be provided with heat conduction silica gel pad between second end plate and the battery module, heat conduction silica gel pad can improve the heat conduction efficiency between battery module and first end plate or the second end plate, the radiating effect is improved, when battery module is carrying out high-power charging or when discharging, can rapid cooling, in addition, be provided with the heating film in one side of battery module, can heat and keep warm battery module through the heating film, in order to guarantee that battery module normally works under lower ambient temperature.

Drawings

Fig. 1 is an exploded view of a battery module provided in an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic structural diagram of the assembled battery module provided in the embodiment of the present invention.

In the figure:

100. a first end plate; 200. a second end plate; 201. screw holes; 300. a battery module; 301. a first bracket; 302. a second bracket; 303. the electric core group; 304. a positive electrode connecting bar; 305. a negative electrode connecting bar; 401. a long screw; 402. a nut; 500. collecting a line; 600. are arranged in series; 601. a fixing hole; 602. a fixing member; 603. a protective sleeve; 700. a plastic cover plate; 800. a heat-conducting silica gel pad; 900. the film is heated.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures associated with the present invention are shown in the drawings, not all of them.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.

As shown in fig. 1-3, the present embodiment provides a battery module, which includes a first end plate 100, a second end plate 200, at least two battery modules 300, and a fixing component, wherein the battery modules 300 are connected in series or in parallel, in the present embodiment, two battery modules 300 are taken as an example for illustration, and the two battery modules 300 are sandwiched between the first end plate 100 and the second end plate 200 and are fixed by the fixing component. The first end plate 100 and the second end plate 200 in this embodiment may be made of a sheet metal material, and the heat conductive silicone pads 800 are disposed between the first end plate 100 and the battery module 300 and between the second end plate 200 and the battery module 300. Through the setting of heat conduction silica gel pad 800, can improve the heat conduction efficiency between battery module 300 and first end plate 100 or second end plate 200, when battery module 300 is carrying out high-power charging or when discharging, can give first end plate 100 or second end plate 200 with the heat fast transfer to because the coefficient of heat conductivity of panel beating material is higher, improved the radiating effect, and then realize the rapid cooling of battery module.

Further, in order to enable the battery module to normally work at a low ambient temperature, one side of the battery module 300 is provided with the heating film 900, the heating film 900 is bonded on the battery module 300, and the battery module 300 can be heated and thermally insulated through the heating film 900, so that the battery module 300 can be normally charged and discharged at a low temperature.

As an optional scheme, the fixing assembly in this embodiment includes a long screw 401 and a nut 402, the first end plate 100 and the second end plate 200 are both provided with screw holes 201, and one end of the long screw 401 sequentially passes through the second end plate 200, the thermal conductive silica gel pad 800, the two battery modules 300, the thermal conductive silica gel pad 800, and the first end plate 100 and then is detachably connected to the nut 402, so that the fixing assembly fixes the two battery modules 300 between the first end plate 100 and the second end plate 200, and the first end plate 100, the thermal conductive silica gel pad 800, the battery modules 300, and the second end plate 200 are fixed into a group. This kind of battery module 300's fixed mode compact structure, under the same condition of volume, electric core group 303 can set up more quantity of electric core, and the accessory part is less, and weight is lighter, is favorable to improving the energy density of whole battery module, and its installation in addition, dismantlement step are simple, and the assembly is easy, and production efficiency is higher.

Further, with reference to fig. 1, the battery module 300 in this embodiment includes a first support 301, a second support 302 and a core pack 303, a plurality of electric cores are disposed in the core pack 303, and the plurality of electric cores are arranged in an array, the core pack 303 is clamped between the first support 301 and the second support 302, the core pack 303 can be fixed by the first support 301 and the second support 302, the first support 301 and the second support 302 are both provided with avoiding holes, so that the long screw 401 can pass through the battery module 300, and the two battery modules 300 can be fixed.

In this embodiment, two battery modules 300 are connected in series as an example, the first supports 301 of the two battery modules 300 are arranged in a back-to-back manner, the second supports 302 of the two battery modules 300 are arranged in an opposite manner, the first support 301 is provided with an anode connecting bar 304, the second support 302 is provided with a cathode connecting bar 305, the anode connecting bar 304 is electrically connected with the anode of the battery pack 303, the cathode connecting bar 305 is electrically connected with the cathode of the battery pack 303, and the anode connecting bar 304 and the cathode connecting bar 305 connect a plurality of batteries in the battery pack 303 in series or in parallel. Alternatively, two battery modules 300 may be connected in series by a series row 600, see fig. 1 and 2, with one end of the series row 600 being connected to the positive connection row 304 of one of the battery modules 300 and the other end of the series row 600 being connected to the negative connection row 305 of the other battery module 300, thereby connecting the two battery modules 300 in series. The battery module includes a fixing member 602, a fixing hole 601 is formed in the serial row 600, and one end of the fixing member 602 passes through the fixing hole 601 and is fixed to the positive electrode connection row 304 or the negative electrode connection row 305. Illustratively, the fixing member 602 may be a screw or a bolt. Of course, other parts may be selected for fixing, which is not limited in this embodiment.

Preferably, a protective sleeve 603 can be further arranged outside the fixing member 602, the protective sleeve 603 is buckled on the fixing member 602, and the protective sleeve 603 can play an insulating role, so that short circuit between the fixing member 602 and other components is avoided.

Of course, in some embodiments, two battery modules 300 may also be connected in parallel, and the series connection row 600 electrically connects the positive connection rows 304 of the two battery modules 300, so as to connect the two battery modules 300 in parallel, so that the battery module can output a larger current.

With continued reference to fig. 1, the battery module 300 in this embodiment includes a voltage collector and a collection line 500, and two ends of the collection line 500 are respectively connected to the voltage collector and the positive connection row 304, so that the voltage collector can collect voltages of corresponding battery cells. The battery module 300 further includes a temperature collector and a temperature sensing line, one end of the temperature sensing line is connected to the temperature collector, and the other end of the temperature sensing line is connected to the surface of the battery cell, so that the temperature collector can collect the temperature of the battery cell. The collection line 500 and the temperature sensing line are both processed by insulation protection to avoid short circuit.

Further, a plastic cover plate 700 is disposed between two adjacent battery modules 300, so that the two battery modules 300 are separated from each other, thereby preventing a short circuit or a power connection. As an optional scheme, in this embodiment, the plastic cover plate 700 is sandwiched between the two battery modules 300, and one end of the long screw 401 sequentially passes through the second end plate 200, the heat-conducting silicone gasket 800, the battery modules 300, the plastic cover plate 700, the battery modules 300, the heat-conducting silicone gasket 800 and the first end plate 100 and then is detachably connected to the nut 402, so that the fixing assembly fixes the first end plate 100, the two heat-conducting silicone gaskets 800, the two battery modules 300, the plastic cover plate 700 and the second end plate 200 in a group.

It is to be understood that the foregoing is only illustrative of the presently preferred embodiments of the invention and that the invention may be practiced using other techniques. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

It is noted that in the description herein, references to the description of "some embodiments," "other embodiments," or the like, are intended to 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 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.

Claims

1. A battery module, comprising:

a first end plate (100) and a second end plate (200);

at least two battery modules (300), wherein the at least two battery modules (300) are clamped between the first end plate (100) and the second end plate (200), and the battery modules (300) are connected in series or in parallel;

a thermally conductive silicone pad (800), the thermally conductive silicone pad (800) being disposed between the first end plate (100) and the battery module (300), and between the second end plate (200) and the battery module (300);

a heating film (900), the heating film (900) being disposed at one side of the battery module (300), and the heating film (900) being connected with the battery module (300);

a fixing assembly fixing the first end plate (100), the thermally conductive silicone pad (800), the battery module (300), and the second end plate (200) in a group.

2. The battery module according to claim 1, wherein the first end plate (100) and the second end plate (200) are provided with screw holes (201), the fixing component comprises a long screw (401) and a nut (402), and one end of the long screw (401) passes through the second end plate (200), the battery module (300) and the first end plate (100) in sequence and then is detachably connected with the nut (402).

3. The battery module according to claim 2, wherein the battery module (300) comprises a first support (301), a second support (302) and a core pack (303), the core pack (303) is fixed between the first support (301) and the second support (302), and the first support (301) and the second support (302) are both provided with an avoidance hole for avoiding the long screw (401).

4. The battery module according to claim 3, wherein a positive connecting row (304) is arranged on the first bracket (301), a negative connecting row (305) is arranged on the second bracket (302), the positive connecting row (304) is electrically connected with the positive electrode of the electric core group (303), the negative connecting row (305) is electrically connected with the negative electrode of the electric core group (303), and the positive connecting row (304) and the negative connecting row (305) connect the plurality of electric cores in the electric core group (303) in series or in parallel.

5. The battery module according to claim 4, wherein the battery module (300) comprises a voltage collector and a collecting line (500), and two ends of the collecting line (500) are respectively connected with the voltage collector and the positive electrode connecting row (304).

6. The battery module according to claim 4, wherein the battery module (300) comprises a temperature collector and a temperature sensing wire, one end of the temperature sensing wire is connected with the temperature collector, and the other end of the temperature sensing wire is connected with the surface of the battery core.

7. The battery module according to claim 4, comprising a series row (600), wherein one end of the series row (600) is connected to the positive connection row (304) of one of the battery modules (300), and the other end of the series row (600) is connected to the negative connection row (305) of another of the battery modules (300).

8. The battery module according to claim 7, wherein the battery module comprises a fixing member (602), the serial row (600) is provided with a fixing hole (601), and one end of the fixing member (602) passes through the fixing hole (601) and then is fixed on the positive electrode connecting row (304) or the negative electrode connecting row (305).

9. The battery module according to any one of claims 1 to 8, wherein a plastic cover plate (700) is provided between adjacent two of the battery modules (300).

10. The battery module according to claim 9, wherein the battery module comprises two battery modules (300), the plastic cap plate (700) is sandwiched between the two battery modules (300), and the fixing assembly fixes the first end plate (100), the two thermally conductive silicone pads (800), the two battery modules (300), the plastic cap plate (700), and the second end plate (200) in a group.