CN211980673U - Battery module and vehicle having it - Google Patents

Abstract

The utility model discloses a battery module and vehicle that has it. This battery module includes: a fence, the fence comprising: the heat dissipation structure comprises a bottom plate and side plates positioned on two sides of the bottom plate, wherein a heat dissipation channel communicated with the outside is formed in the wall of the enclosing plate, and the bottom plate and the side plates on the two sides enclose an accommodating groove; the battery cell is located in the accommodating groove. According to the utility model discloses a battery module, electricity core are with heat transfer to bounding wall that the during operation produced, and the bounding wall dispels the heat through the heat dissipation channel with external intercommunication to in the realization keeps electric core to be in suitable temperature environment, thereby be favorable to promoting the security performance and the life of electric core, simultaneously, heat dissipation channel simple structure, occupation space are little, the radiating efficiency is high, in order to realize guaranteeing battery module cooling performance, reduce the volume of battery module.

Description

Battery module and vehicle having it

technical field

The utility model relates to the field of automobiles, in particular to a battery module and a vehicle having the same.

Background technique

With the continuous development of electric vehicles, higher requirements are put forward for the safety of battery modules. The main measure to ensure the safety of battery modules is to keep the cells in a suitable temperature environment, so cooling the battery modules. The performance puts forward higher requirements. At present, air-cooled battery modules mostly use modules in the form of frame stacking, and the air duct structure is mostly designed as a closed air duct. This structure leads to a larger volume of the battery module.

Utility model content

The present invention aims to solve one of the above-mentioned technical problems in the prior art at least to a certain extent. Therefore, the present invention proposes a battery module, which can reduce the volume of the battery module while ensuring the cooling performance of the battery module.

The utility model also provides a vehicle with the above battery module.

The battery module according to the embodiment of the present invention includes: an enclosure plate, the enclosure plate includes: a bottom plate and side plates located on both sides of the bottom plate, and a heat dissipation channel communicated with the outside is provided in the plate wall of the enclosure plate. The bottom plate and the side plates on both sides are enclosed to form an accommodating groove; and the electric core is located in the accommodating groove.

According to the battery module of the embodiment of the present invention, the cells transfer the heat generated during operation to the enclosure plate, and the enclosure plate dissipates heat through the heat dissipation channel communicated with the outside, so as to keep the cells in a suitable temperature environment, thereby It is beneficial to improve the safety performance and service life of the battery cell. At the same time, the heat dissipation channel has a simple structure, small occupied space and high heat dissipation efficiency, so as to reduce the volume of the battery module while ensuring the cooling performance of the battery module.

According to some embodiments of the present invention, the heat dissipation channel is formed in the bottom plate and/or the side plate, and the side plate is provided with heat dissipation fins extending outward.

According to some embodiments of the present invention, the side panels on each side include: a vertical panel segment and an overhanging panel segment, the vertical panel segment is fixed to the bottom plate, and the overhanging panel segment is located in the The top of the vertical plate segment is bent, and the overhanging plate segment is bent away from the accommodating groove.

Further, the included angle between the overhanging plate segment and the vertical plate segment is 120°˜170°.

Further, on the surface facing the accommodating groove, a rounded transition segment is provided between the overhanging plate segment and the vertical plate segment.

According to some embodiments of the present invention, both ends of the enclosure plate are provided with end plates to close both ends of the accommodating groove, and end plate installation points are provided on the end plates.

Further, there are a plurality of the battery cells, and insulating plate pads are arranged between the battery cores and the end plates and between two adjacent battery cells.

According to some embodiments of the present invention, the distance between the two side plates is greater than the width of the battery core, so as to form a glue potting area between the battery core and the side plate.

Further, there are a plurality of the battery cells, and a heat-conducting plate is arranged between two adjacent battery cores, or a heat-conducting plate is arranged between the battery cores every certain number, and the heat-conducting plate extends to the tank. glue area.

A vehicle according to another embodiment of the present invention includes the above-mentioned battery module.

The vehicle and the above-mentioned battery module have the same advantages over the prior art, which will not be repeated here.

Additional aspects and advantages of the invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or learned by practice of the invention.

Description of drawings

1 is a perspective view of a battery module;

Figure 2 is a perspective view of a hoarding;

Figure 3 is a front view of a hoarding;

Figure 4 is a perspective view of an end plate;

5 is a top view of the battery module;

Figure 6 is a cross-sectional view of Figure 5 at A-A;

FIG. 7 is an exploded view of the battery module.

Reference number:

Surrounding plate 1, bottom plate 11, heat dissipation channel 111, end plate fixing point 112, side plate 21, heat dissipation fins 211, vertical plate section 212, overhang plate section 213, accommodating groove 31, glue filling area 311, battery core 2. End plate 3 , end plate installation point 30 , insulating plate pad 4 , heat conduction plate 5 , battery module 10 .

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to be used to explain the present invention, but should not be construed as a limitation of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "width", "top", "bottom", "inner", "outer", etc. is based on the orientation or position shown in the accompanying drawings The relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In addition, in the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

In the present utility model, unless otherwise expressly specified and limited, the terms "installation", "connection", "connection", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integration; it can be mechanical connection, electrical connection or mutual communication; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements . For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

The battery module 10 according to the embodiment of the present invention will be described in detail below with reference to FIGS. 1 to 7 .

Referring to FIG. 1 to FIG. 3 , the battery module 10 includes: an enclosure 1 and a battery cell 2 .

The enclosure plate 1 includes: a bottom plate 11 and side plates 21 located on both sides of the bottom plate 11. The wall of the enclosure plate 1 has a heat dissipation channel 111 that communicates with the outside world. The heat dissipation channel 111 is a through-type heat dissipation channel 111, which has a simple structure and a small footprint. , the outside cold air can flow into the heat dissipation channel 111 from one end of the heat dissipation channel 111, and flow out at the other end of the heat dissipation channel 111 after heat exchange with the enclosure plate 1. The side plates 21 on both sides form an accommodation slot 31, the accommodation slot 31 is a U-shaped structure, the cell 2 is located in the accommodation slot 31, the bottom plate 11 has the function of supporting the cell 2, and the cell 2 can transfer the heat generated during operation. to hoarding 1.

According to the battery module 10 of the present invention, the cells 2 transmit the heat generated during operation to the enclosure plate 1, and the enclosure plate 1 dissipates heat through the heat dissipation channel 111 communicating with the outside, so as to keep the cells 2 at a suitable temperature Therefore, it is beneficial to improve the safety performance and service life of the battery cell 2. At the same time, the heat dissipation channel 111 has a simple structure, small space occupation, and high heat dissipation efficiency, so as to ensure the cooling performance of the battery module 10 and reduce the size of the battery module. Volume of group 10.

In some embodiments of the present invention, the heat dissipation channel 111 is formed in the bottom plate 11 and/or the side plate 21 to dissipate heat to the bottom plate 11 and/or the side plate 21, and the side plate 21 is provided with outwardly extending heat dissipation fins The fins 211 are provided to increase the heat exchange area of the side plate 21 , thereby improving the heat dissipation efficiency of the side plate 21 .

Referring to the embodiment shown in FIG. 3 , a heat dissipation channel 111 is formed in the bottom plate 11 , and a heat dissipation fin 211 extending outward is provided on the side plate 21 . And the cooling fins 211 exchange heat with the outside cold air to cool down.

Referring to FIG. 3 , the side panels 21 on each side include: a vertical panel segment 212 and an overhanging panel segment 213 , the vertical panel segment 212 is fixed to the bottom plate 11 , and the overhanging panel segment 213 is located at the top of the vertical panel segment 212 . , and the overhanging plate segment 213 is bent in a direction away from the accommodating slot 31 , and the overhanging plate segment 213 has a guiding function, which facilitates placing the stacked cells 2 into the accommodating slot 31 and facilitates the injection of thermally conductive structural adhesive.

Referring to FIG. 3 , the included angle between the overhanging plate section 213 and the vertical plate section 212 is 120°˜170° to form a certain lead-in angle, so that the overhanging plate section 213 has a structure for installing the cell 2 and conducting heat conduction The guiding role of glue injection.

Preferably, on the surface facing the accommodating groove 31 , a rounded transition section is provided between the overhanging plate section 213 and the vertical plate section 212 to prevent the battery cell 2 from being bumped and scratched during the process of placing the battery cell 2 into the accommodating groove 31 2.

1 , 4 and 5 , end plates 3 are provided at both ends of the enclosure plate 1 to close both ends of the accommodating groove 31 , thereby fixing and protecting the cells 2 in the accommodating groove 31 , and the end plates 3 There is an end plate installation point 30 on the upper part, and both ends of the enclosure plate 1 are provided with end plate fixing points 112 corresponding to the end plate installation point 30 for positioning and fixing the end plate 3 on the enclosure plate 1, preferably First, the end plate 3 is extruded from a profile. After the end plate 3 and the enclosure plate 1 are fixed, they are fixed by welding to enhance the overall structural reliability of the enclosure plate 1 and the end plate 3 .

Referring to FIG. 7 , there are a plurality of battery cells 2 , an insulating plate pad 4 is arranged between the battery core 2 and the end plate 3 and between two adjacent battery cells 2 , and the insulating plate pad 4 has an insulating function to improve the battery Security features of module 10.

Referring to FIGS. 5 and 6 , the distance between the two side plates 21 is greater than the width of the battery core 2 , so that a glue filling area 311 is formed between the battery core 2 and the side plate 21 , and the glue filling area 311 is filled with heat conduction Structural adhesive, the heat generated by the battery core 2 during operation can be transferred to the side plate 21 through the thermal conductive structural adhesive, and at the same time, the thermal conductive structural adhesive can also fix the battery core 2 in the casing.

In some implementations of the present invention, there are a plurality of battery cells 2 , a thermally conductive plate 5 is arranged between two adjacent battery cells 2 , the thermally conductive plate 5 extends to the glue-filling area 311 , and the thermally conductive plate 5 has good thermal conductivity. The metal plate and the heat-conducting plate 5 can transfer the heat on the side of the battery cell 2 that is not in direct contact with the heat-conducting structural adhesive to the heat-conducting structural adhesive, thereby improving the heat dissipation performance of the battery module 10 .

Optionally, according to the heat generation of the battery cells 2 and the heat dissipation of the battery module 10, a heat-conducting plate 5 is arranged between a certain number of the battery cells 2, thereby helping to reduce the cost of the battery module 10. For example, as shown in FIG. 7 . In the illustrated embodiment, a heat-conducting plate 5 is disposed between every two battery cells 2 , which can not only ensure the heat transfer on the side of the battery core 2 , but also reduce the amount of the heat-conducting plate 5 .

In some embodiments, both the end plate mounting point 30 and the end plate fixing point 112 are mounting holes, and in the case of using fasteners, the end plate mounting point 30 can be used to attach the end plate 3 to other parts ( For example, the casing of the battery pack is fixed, and the end plate fixing points 112 can be used to fix the enclosure 1 with other parts (such as the casing of the battery pack), so that the battery module 10 can be fixed on other parts (such as the casing of the battery pack). box) fixed.

Optionally, the enclosure plate 1 and the end plate 3 can form a water tank-type lower casing structure, which can form a cooling method that can directly perform liquid cooling on the battery core 2 together with the semi-submerged battery module.

A vehicle according to another embodiment of the present invention includes the battery module 10 of the above embodiment.

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., means a specific feature described in connection with the embodiment or example, A structure, material, or feature is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed 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. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

Although the embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limitations of the present invention, and those of ordinary skill in the art are within the scope of the present invention Variations, modifications, substitutions and variations can be made to the above-described embodiments.

Claims (10)

1. A battery module, characterized in that, comprising: A enclosure plate (1), the enclosure plate (1) comprises: a bottom plate (11) and side plates (21) located on both sides of the bottom plate (11), and a wall of the enclosure plate (1) has a wall that communicates with the outside world The heat dissipation channel (111) is formed, and the bottom plate (11) and the side plates (21) on both sides are combined to form a receiving groove (31); An electric cell (2), the electric cell (2) is located in the accommodating groove (31). 2 . The battery module ( 10 ) according to claim 1 , wherein the heat dissipation channel ( 111 ) is formed in the bottom plate ( 11 ) and/or the side plate ( 21 ), and the side plate ( 21 ) The plate (21) is provided with outwardly extending cooling fins (211). 3. The battery module (10) according to claim 1 or 2, wherein the side plate (21) on each side comprises: a vertical plate segment (212) and an overhanging plate segment (213) , the vertical plate segment (212) is fixed to the bottom plate (11), the overhanging plate segment (213) is located at the top of the vertical plate segment (212), and the overhanging plate segment (213) ) is bent away from the receiving groove (31). 4 . The battery module ( 10 ) according to claim 3 , wherein the angle between the overhanging plate segment ( 213 ) and the vertical plate segment ( 212 ) is 120°˜170° . 5. The battery module (10) according to claim 3, characterized in that, on the surface facing the accommodating groove (31), the overhanging plate segment (213) and the vertical plate segment (212) ) is provided with a rounded transition segment. 6 . The battery module ( 10 ) according to claim 1 , wherein end plates ( 3 ) are provided at both ends of the enclosure plate ( 1 ), so as to connect the two ends of the accommodating groove ( 31 ). 7 . closed, and the end plate (3) is provided with an end plate installation point (30). 7 . The battery module ( 10 ) according to claim 6 , characterized in that, there are a plurality of the battery cells ( 2 ), and between the battery cells ( 2 ) and the end plate ( 3 ) and the phase An insulating plate pad (4) is arranged between two adjacent battery cores (2). 8. The battery module (10) according to claim 1 or 6, characterized in that, the distance between the two side plates (21) is greater than the width of the battery cell (2), so that the A glue filling area (311) is formed between the battery core (2) and the side plate (21). 9 . The battery module ( 10 ) according to claim 8 , characterized in that there are a plurality of the battery cells ( 2 ), and a heat conducting plate ( 5 is arranged between two adjacent battery cells ( 2 ). 10 . ), or a heat-conducting plate (5) is arranged between the electric cores (2) every predetermined number, and the heat-conducting plate (5) extends to the glue filling area (311). 10. A vehicle, characterized by comprising the battery module (10) according to any one of claims 1-9.

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