Membrane module and battery pack with same

Abstract

The utility model provides a membrane module and its battery pack, the membrane module is used for the battery pack, the membrane module comprises: a base body, an accommodation space is formed in the base body, a heat conduction pipeline is arranged in the accommodation space, the heat conduction pipeline is used for electrifying to heat the battery pack, the heat conduction pipeline is filled with a cooling medium, and the cooling medium is used for cooling the battery pack. And the cooling medium is used for cooling the battery pack. According to the membrane assembly disclosed by the utility model, the heat conduction pipeline is arranged on the base body, so that the battery pack can be heated and cooled, the production cost of the battery pack can be reduced, meanwhile, the functional integration level of the membrane assembly can be improved, the available space in the battery pack can be saved, and the energy density of the battery pack can be conveniently improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery pack manufacturing, and in particular to a membrane assembly and a battery pack having the same. Background Art

[0002] In the existing battery pack solutions, in order to heat and cool the battery pack, a heating structure and a cooling structure are usually separately provided, and the heating structure and the cooling structure are separately assembled, resulting in the cost of the battery pack. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a membrane assembly, which can reduce the production cost of the battery pack.

[0004] The utility model also provides a battery pack having the above-mentioned membrane assembly.

[0005] The membrane assembly according to the embodiment of the utility model is used for a battery pack, and the battery pack includes: a base body, an accommodation space is formed in the base body, a heat conduction pipe is arranged in the accommodation space, the heat conduction pipe is used for heating the battery pack by electrifying, and a cooling medium is filled in the heat conduction pipe, and the cooling medium is used for cooling the battery pack.

[0006] According to the membrane assembly of the utility model, by arranging the heat conduction pipe on the base body, heating and cooling of the battery pack can be realized, thereby reducing the production cost of the battery pack. At the same time, the functional integration degree of the membrane assembly can be improved, and the available space in the battery pack can be saved, which is convenient for improving the energy density of the battery pack.

[0007] According to some embodiments of the utility model, the base body extends along a first direction, and the heat conduction pipe extends circuitously in a second direction perpendicular to the first direction.

[0008] According to some embodiments of the utility model, the heat conduction pipe includes a first section and a second section, the first section extends along the first direction, the second section extends along the second direction, one first section is connected between any two adjacent second sections, and the first section is communicated with the second section.

[0009] According to some embodiments of the utility model, a liquid inlet and a liquid outlet are formed on the base body, and two ends of the heat conduction pipe are respectively communicated with the liquid inlet and the liquid outlet.

[0010] According to some embodiments of the utility model, the heat conduction pipe is a metal pipe.

[0011] According to some optional embodiments of the utility model, the battery pack further includes: a protective layer, and the protective layer covers two side surfaces of the base body.

[0012] According to some alternative embodiments of the present utility model, a filler is filled in the accommodation space, and the filler is a thermally conductive structural adhesive.

[0013] According to some alternative embodiments of the present utility model, the protective layer and the base body are connected by the filler.

[0014] According to some embodiments of the present utility model, the thickness of the base body is in the range of 1 mm - 5 mm.

[0015] The battery pack according to the embodiment of the second aspect of the present utility model includes the membrane assembly according to the first aspect of the present utility model.

[0016] For the battery pack according to the present utility model, by providing the membrane assembly according to the embodiment of the first aspect and arranging the heat conduction pipes on the base body, heating and cooling of the battery pack can be achieved, thereby reducing the production cost of the battery pack. At the same time, the functional integration degree of the membrane assembly can be improved, the available space inside the battery pack can be saved, and it is convenient to improve the energy density of the battery pack.

[0017] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0018] Figure 1 is a schematic diagram of the membrane assembly according to the embodiment of the first aspect of the present utility model;

[0019] Figure 2 is Figure 1 the exploded view of the membrane assembly shown in

[0020] Reference Signs:

[0021] 100, membrane assembly;

[0022] 10, base body; 11, heat conduction pipe; 111, first section; 112, second section; 12, liquid inlet;

[0023] 20, protective layer. Detailed Description of the Embodiments

[0024] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, but should not be construed as limiting the present utility model.

[0025] The following refers to the attached Figure 1-2Describe the membrane module 100 according to an embodiment of the present invention.

[0026] Referring to Figure 1 and Figure 2 , the membrane module 100 according to an embodiment of the present invention is used for a battery pack. The membrane module 100 includes a base body 10. An accommodation space is formed in the base body 10. A heat conduction pipe 11 is arranged in the accommodation space. The heat conduction pipe 11 is used for heating the battery pack by electrifying, and a cooling medium is filled in the heat conduction pipe 11. The cooling medium is used for cooling the battery pack.

[0027] Preferably, the base body 10 is a metal part, so that it is convenient for the base body 10 to transfer heat to the battery pack after heating, and the cooling medium is a refrigerant, so that the temperature reduction effect of the membrane module 100 on the battery pack can be ensured.

[0028] When the membrane module 100 works, when the temperature in the battery pack is too low and needs to be heated, the heat conduction pipe 11 is heated, and the heat conduction pipe 11 transfers the heat to the battery pack, so that the temperature in the battery pack rises. When the temperature in the battery pack is too high and needs to be cooled, the heat in the battery pack is transferred to the heat conduction pipe 11 through the base body 10, and the cooling medium in the heat conduction pipe 11 absorbs the heat of the base body 10, so that the battery pack is cooled.

[0029] For the membrane module 100 of the present invention, a heat conduction pipe 11 is arranged on the base body 10. The base body 10 can raise the temperature in the battery pack, and the cooling medium in the heat conduction pipe 11 can cool the battery pack. There is no need to separately set cooling and temperature reduction structures, so that the production process can be reduced, the production efficiency can be improved, and further the production cost of the battery pack can be reduced. At the same time, the membrane module 100 integrates cooling and heating functions, so that the function integration degree of the membrane module 100 can be improved, and the available space in the battery pack can also be saved, which is convenient for improving the energy density of the battery pack.

[0030] For the membrane module 100 according to an embodiment of the present invention, by arranging a heat conduction pipe 11 on the base body 10, heating and cooling of the battery pack can be realized, so that the production cost of the battery pack can be reduced. At the same time, the function integration degree of the membrane module 100 can be improved, and the available space in the battery pack can also be saved, which is convenient for improving the energy density of the battery pack.

[0031] Furthermore, as Figure 1 and Figure 2 shown, by adjusting the metal material of the base body 10, different heating coefficients and strengths can be achieved for the base body 10, so that the heating effect of the base body 10 on the battery pack can be ensured, and at the same time, the strength of the base body 10 can also be ensured.

[0032] According to some embodiments of the present invention, referring to Figure 1 and Figure 2 , the base body 10 extends along a first direction (such as Figure 2The heat conducting pipe 11 extends in a second direction perpendicular to the first direction (such as Figure 2 Thus, the laying length of the heat-conducting pipe 11 can be reduced, the material cost can be reduced, and the heat-conducting effect of the heat-conducting pipe 11 can be ensured. In addition, the base 10 can be designed into different shapes and layouts according to actual needs, thereby increasing the versatility of the base 10.

[0033] According to some embodiments of the present invention, referring to Figure 1 and Figure 2 The heat conducting pipe 11 includes a first section 111 and a second section 112. The first section 111 is along a first direction (eg Figure 2 The second section 112 extends in the second direction (as shown in the front-to-back direction). Figure 2 The heat pipe 11 extends in the left and right directions as shown, and a first section 111 is connected between any two adjacent second sections 112, and the first section 111 is connected to the second section 112. Therefore, this arrangement is reasonable and convenient for laying the heat pipe 11. At the same time, the radiation range of the heat pipe 11 can be guaranteed, and the heat conduction effect of the heat pipe 11 can be guaranteed.

[0034] For example, Figure 1 and Figure 2 As shown, the first section 111 extends in the front-to-back direction, the second section 112 extends in the left-to-right direction, the second section 112 is connected between two adjacent first sections 111, and two adjacent second sections 112 are connected to both ends of the first section 111, thereby forming an S-shaped heat conduction pipe 11.

[0035] According to some embodiments of the present invention, referring to Figure 1 and Figure 2 The base 10 is formed with a liquid inlet 12 and a liquid outlet (not shown in the figure), and both ends of the heat conducting pipe 11 (such as Figure 1 The left and right ends of the heat-conducting pipe 11 are respectively connected to the liquid inlet 12 and the liquid outlet. Thus, the cooling medium can be added to the heat-conducting pipe 11 from the liquid inlet 12, thereby ensuring the amount of cooling medium in the heat-conducting pipe 11. At the same time, the excess cooling medium in the heat-conducting pipe 11 can be released from the liquid outlet, thereby avoiding the waste of cooling medium.

[0036] For example, Figure 1 and Figure 2 As shown, the front end of the heat conducting pipe 11 is formed as a liquid inlet 12, and the rear end of the heat conducting pipe 11 is formed as a liquid outlet.

[0037] According to some embodiments of the present invention, referring to Figure 1 and Figure 2, the heat conduction pipe 11 is a metal pipe. Thus, the metal pipe can be heated, and the battery pack can be heated by electrifying and heating the metal pipe.

[0038] According to some alternative embodiments of the present invention, referring to Figure 1 and Figure 2 , the membrane assembly 100 may further include: a protective layer 20, and the protective layer 20 covers both side surfaces of the substrate 10. Thus, the protective layer 20 can protect the substrate 10, thereby preventing the substrate 10 from being damaged by external objects.

[0039] According to some embodiments of the present invention, referring to Figure 1 and Figure 2 , the accommodating space is filled with a filling member. Thus, the relative shaking of the heat conduction pipe 11 with respect to the substrate 10 can be avoided, thereby protecting the heat conduction pipe 11 and increasing the service life of the heat conduction pipe 11. At the same time, the membrane assembly 100 can uniformly heat and cool the battery pack, thereby ensuring the temperature control effect.

[0040] According to some alternative embodiments of the present invention, referring to Figure 1 and Figure 2 , the filling member is a thermally conductive structural adhesive. Thus, the heat conduction effect of the filling member can be ensured, thereby facilitating the cooling medium to absorb the heat in the substrate 10.

[0041] According to some alternative embodiments of the present invention, referring to Figure 1 and Figure 2 , the protective layer 20 is connected to the substrate 10 through the filling member. Thus, the connection strength between the protective layer 20 and the substrate 10 can be ensured, and the separation of the protective layer 20 from the substrate 10 can be avoided.

[0042] According to some embodiments of the present invention, referring to Figure 1 and Figure 2 , the thickness of the substrate 10 is in the range of 1 mm to 5 mm. Thus, it can prevent the substrate 10 from being too thin to affect the strength of the substrate 10, and at the same time, it can also prevent the substrate 10 from being too thick to occupy too much space.

[0043] For example, as Figure 1 and Figure 2 shown, the thickness of the substrate 10 can be 1 mm, 2 mm, 3 mm, 4 mm or 5 mm.

[0044] The battery pack according to the embodiment of the second aspect of the present invention, referring to Figure 1 , includes the membrane assembly 100 of the first aspect of this embodiment.

[0045] According to the battery pack of the embodiments of the present utility model, by providing the membrane assembly 100 of the first aspect embodiments above, and arranging the heat conduction pipeline 11 on the base body 10, heating and cooling of the battery pack can be achieved, thereby reducing the production cost of the battery pack. At the same time, the functional integration degree of the membrane assembly 100 can be improved, the available space inside the battery pack can be saved, and it is convenient to improve the energy density of the battery pack.

[0046] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model.

[0047] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0048] In the present utility model, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0049] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0050] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A membrane assembly for a battery pack, characterized in that: include: A substrate is formed with a receiving space, a heat-conducting pipe is arranged in the receiving space, the heat-conducting pipe is used for heating the battery pack by electricity, and the heat-conducting pipe is filled with a cooling medium, and the cooling medium is used for cooling the battery pack.

2. The membrane module according to claim 1, characterized in that The base extends along a first direction, and the heat-conducting pipe extends in a circuitous manner in a second direction perpendicular to the first direction.

3. The membrane module according to claim 1, characterized in that The heat conduction pipe includes a first section and a second section, the first section extends along a first direction, the second section extends along a second direction, one first section is connected between any two adjacent second sections, and the first section is communicated with the second section.

4. The membrane module according to claim 1, characterized in that A liquid inlet and a liquid outlet are formed on the base, and two ends of the heat-conducting pipe are respectively connected to the liquid inlet and the liquid outlet.

5. The membrane module according to any one of claims 1 to 4, characterized in that: The heat-conducting pipe is a metal pipe.

6. The membrane module according to claim 5, characterized in that Also includes: A protective layer covers the surfaces of both sides of the substrate.

7. The membrane module according to claim 6, characterized in that The accommodating space is filled with a filling piece, and the filling piece is a heat-conducting structural adhesive.

8. The membrane module according to claim 7, characterized in that The protective layer is connected to the substrate through the filling piece.

9. The membrane module according to claim 1, characterized in that The thickness of the substrate is in the range of 1 mm to 5 mm.

10. A battery pack, characterized in that: The invention comprises a membrane module according to any one of claims 1 to 9.

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