Battery cell mounting rack and battery module with same

Abstract

The application discloses a battery cell mounting rack and a battery module with the same. The battery cell mounting rack comprises a support frame and a heat dissipation member, wherein the heat dissipation member is fixed on the inner wall of the support frame and cooperates with the support frame to form a containing groove for containing a battery cell; the support frame is provided with a plurality of first through holes at the connection position of the heat dissipation member; the heat dissipation member is provided with a wind guide groove in communication with the first through holes, and the wind guide groove is in communication with the containing groove; and the first through holes and the wind guide groove cooperate to form a heat dissipation channel. The heat dissipation member is fixed inside the support frame to form the containing groove for placing the battery cell in cooperation with the support frame; the wind guide groove is formed on the heat dissipation member and is in communication with the containing groove; when the battery cell is placed in the containing groove, the airflow flowing through the wind guide groove contacts the battery cell and exchanges heat with the battery cell to reduce the temperature of the battery cell. The wind guide groove is in communication with the first through holes, so that the hot airflow can flow out of the battery cell mounting rack or the cold airflow can flow into the battery cell mounting rack, which is beneficial to improving the heat dissipation efficiency.

Description

Technical Field

[0001] This invention relates to the field of battery technology, and in particular to a cell mounting bracket and a battery module having the same. Background Technology

[0002] Existing battery modules are typically composed of multiple interconnected cells. During operation, these cells generate significant heat. If this heat cannot be effectively dissipated, it will affect the battery module's lifespan, operational stability, and safety. Current technology involves creating cell positioning slots on the bottom casing of the battery module, inserting the cells into these slots, and then installing the middle casing and top cover. The gaps between adjacent cells, and between the cell positioning slots and the cells themselves, are often the primary channels for heat dissipation. To facilitate the installation of the middle casing and top cover, the cells often need to be horizontally and vertically aligned, requiring the dimensions of the cell mounting slots to precisely match the cell dimensions for a secure fixation to the bottom casing. However, this often results in tight contact or very small gaps between the cells and the sidewalls of the mounting slots, hindering heat dissipation and compromising the battery module's lifespan, operational stability, and safety. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a cell mounting bracket that facilitates heat dissipation from the cell.

[0004] The present invention also provides a battery module having the above-described cell mounting bracket.

[0005] According to a first aspect of the present invention, a battery cell mounting bracket includes: a support frame and a heat sink, wherein the heat sink is fixed on the inner wall of the support frame and cooperates with the support frame to form a receiving groove for accommodating a battery cell; the support frame has a plurality of first through holes at the connection of the heat sink, the heat sink has air guide grooves communicating with the first through holes and communicating with the receiving groove, and the first through holes and air guide grooves cooperate to form a heat dissipation channel.

[0006] The cell mounting bracket according to the first aspect of the present invention has at least the following beneficial effects:

[0007] The heat sink is fixed inside the support frame, forming a receiving slot to hold the battery cell. Air guide channels are created on the heat sink, connecting to the receiving slot. When the battery cell is placed in the slot, the airflow passing through the air guide channels contacts the battery cell and exchanges heat, thus lowering its temperature. The air guide channels connect to a first through-hole, allowing hot air to flow out of the battery cell mounting frame or cool air to flow into it. This dissipates the heat generated by the battery cell, improving heat dissipation efficiency, reducing the temperature inside the receiving slot, and consequently extending the battery cell's lifespan, stability, and safety during use.

[0008] According to some embodiments of the first aspect of the present invention, the heat sink is composed of at least two heat sink ribs, the two ends of which are respectively fixed to the inner wall of the support frame, and an air guide groove is formed between adjacent heat sink ribs.

[0009] According to some embodiments of the first aspect of the present invention, each heat dissipation rib includes a first heat dissipation part and a second heat dissipation part connected to each other along the length direction. The first heat dissipation part is fixed on the support frame, and the plane where the first heat dissipation part is located is perpendicular to the depth direction of the receiving groove, and the plane where the second heat dissipation part is located is parallel to the depth direction of the receiving groove.

[0010] According to some embodiments of the first aspect of the present invention, the battery cell mounting bracket further includes a plurality of partitions disposed in a receiving groove and used to divide the receiving groove into a plurality of side-by-side receiving areas, each receiving area for receiving a battery cell.

[0011] According to some embodiments of the first aspect of the present invention, each heat dissipation rib includes a plurality of first heat dissipation portions and a plurality of second heat dissipation portions. The plurality of first heat dissipation portions in the same heat dissipation rib are respectively arranged in correspondence with a plurality of receiving areas, and each second heat dissipation portion is disposed between two adjacent first heat dissipation portions.

[0012] According to some embodiments of the first aspect of the present invention, a cell mounting bracket has a heat sink disposed in the middle of a support frame such that receiving grooves are formed on both sides of the heat sink, and an air guide groove connects the receiving grooves on both sides of the heat sink.

[0013] According to some embodiments of the first aspect of the present invention, the battery cell mounting bracket has a notch on the support frame that connects to the receiving groove, the notch being used to expose the battery cell terminal of the battery cell to the support frame.

[0014] According to some embodiments of the first aspect of the present invention, the battery cell mounting bracket is provided with a plurality of positioning grooves and positioning protrusions. The positioning grooves and positioning protrusions are provided on two sides of the support bracket perpendicular to the depth direction of the receiving groove, and two battery cell mounting brackets can be connected and positioned to each other through the cooperation of the positioning grooves and positioning protrusions.

[0015] According to some embodiments of the first aspect of the present invention, the battery cell mounting bracket has a plurality of second through holes, the second through holes being disposed at the bottom of the positioning groove and penetrating the positioning protrusion opposite to the position of the positioning groove.

[0016] According to some embodiments of the second aspect of the present invention, a battery module includes a battery cell and at least two battery cell mounting brackets as described in the first aspect embodiment. The battery cell mounting brackets are stacked along the depth direction of the receiving groove, and the battery cell is disposed between adjacent battery cell mounting brackets and received within the receiving groove.

[0017] The battery module according to some embodiments of the second aspect of the present invention has at least the following beneficial effects:

[0018] By stacking cell mounting racks sequentially and housing the cells within receiving slots, multiple cells can operate simultaneously, enhancing the power supply efficiency of the battery module. With cells housed on both sides of the heat sink, the heat sink can dissipate heat generated by cells on both sides simultaneously, improving the heat dissipation efficiency of the battery module. Furthermore, stacking the cell mounting racks creates a receiving space between adjacent racks, defining the cell position. This simplifies the operation, streamlines the assembly process, saves manual installation time, and increases tolerance for variations in cell dimensions.

[0019] 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. Attached Figure Description

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the battery cell mounting bracket according to an embodiment of the present invention;

[0022] Figure 2 for Figure 1 Enlarged view of region A in the middle;

[0023] Figure 3 This is a schematic diagram of the battery module structure according to an embodiment of the present invention.

[0024] Figure label:

[0025] The battery cell mounting bracket 100, support bracket 110, first through hole 111, notch 112, second through hole 113, positioning groove 114, positioning protrusion 115, heat sink 120, air guide groove 121, heat sink rib 122, first heat sink 122.1, second heat sink 122.2, connecting rib 123, receiving groove 130, separator 140, battery cell 200, and battery cell terminal 210. Detailed Implementation

[0026] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote 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 only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, left, right, front, back, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0028] In the description of this invention, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0029] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0030] The following is for reference only. Figure 1 To be continued Figure 2 The following describes a cell mounting bracket 100 according to a first aspect embodiment of the present invention.

[0031] Reference Figure 1The battery cell mounting bracket 100 of this embodiment includes a support bracket 110 and a heat sink 120. The heat sink 120 is fixed on the inner wall of the support bracket 110 and cooperates with the support bracket 110 to form a receiving groove 130, which is used to accommodate the battery cell 200. The support bracket 110 has a plurality of first through holes 111 at the connection of the heat sink 120. The heat sink 120 has a guide groove 121 communicating with the opening of the first through holes 111 and communicating with the receiving groove 130. The first through holes 111 and the guide groove 121 cooperate to form a heat dissipation channel, which is used to allow gas to flow through in order to remove part of the heat of the battery cell 200. By fixing the heat sink 120 inside the support frame 110, the heat sink 120 and the support frame 110 cooperate to form a receiving groove 130 for placing the battery cell 200. An air guide groove 121 is formed on the heat sink 120, connecting to the receiving groove 130. When the battery cell 200 is placed in the receiving groove 130, the airflow flowing through the air guide groove 121 contacts the battery cell 200 and exchanges heat with it, thereby reducing the temperature of the battery cell 200. The air guide groove 121 connects to the first through hole 111, allowing hot airflow to flow outside the battery cell mounting bracket 100 or cold airflow to flow inside the battery cell mounting bracket 100, thus dissipating the heat generated by the battery cell 200 to the outside of the battery cell mounting bracket 100. This improves heat dissipation efficiency, thereby reducing the temperature inside the receiving groove 130, and ultimately extending the lifespan of the battery cell 200, as well as its stability and safety during use.

[0032] It is understood that the heat sink 120 can be a plate with a groove on its surface, the groove being used for airflow, the side of the heat sink 120 with the groove facing the receiving groove 130, and the groove communicating with the first through hole 111.

[0033] Understandably, the air duct 121 penetrates the heat sink 120, and this arrangement can increase the airflow velocity, thereby improving the heat dissipation efficiency.

[0034] Combination Figure 1 Specifically, the support frame 110 is a frame structure made up of four plates. The two ends of the heat sink 120 are fixed to the inner walls of two oppositely arranged plates. It can be understood that the support frame 110 can also be a cylindrical structure or other polygonal frame structure.

[0035] Understandably, the size of the receiving slot 130 can be specifically set according to the size of the battery cell 200. Specifically, the size of the receiving slot 130 should be larger than the size of the battery cell 200. This design prevents the slot wall from compressing the battery cell 200 when it expands due to heat, thus reducing damage to the battery cell 200. Of course, to allow the battery cell mounting bracket 100 to accommodate more sizes of battery cells 200, the size of the receiving slot 130 can be increased.

[0036] Understandably, the heat sink 120 consists of at least two heat sink ribs 122, with both ends of the heat sink ribs 122 fixed to the inner wall of the support frame 110, and air guide grooves 121 formed between adjacent heat sink ribs 122.

[0037] Combination Figure 1 Specifically, six through holes are provided on each of the two opposite side walls of the support frame 110, and seven heat dissipation ribs 122 are provided. The two ends of the heat dissipation ribs 122 are fixed to the opposite side walls, and the first through holes 111 are spaced apart. Air guide grooves 121 are formed between adjacent ribs. The heat dissipation ribs 122 and the first through holes 111 are evenly distributed, which can make the heat dissipation of the battery cell 200 more uniform.

[0038] Understandably, the heat sink 120 also includes connecting ribs 123, which are disposed between adjacent heat sink ribs 122 and connected to the heat sink ribs 122 at both ends to increase the strength of the heat sink 120.

[0039] Understandably, each heat dissipation rib 122 includes a first heat dissipation part 122.1 and a second heat dissipation part 122.2 connected to each other along the length direction. The first heat dissipation part 122.1 is fixed on the support frame 110, and the plane where the first heat dissipation part 122.1 is located is perpendicular to the depth direction of the receiving groove 130, while the plane where the second heat dissipation part 122.2 is located is parallel to the depth direction of the receiving groove 130. This arrangement ensures that between two adjacent first heat dissipation sections 122.1, the airflow direction is perpendicular to the depth direction of the receiving groove 130. Specifically, when the battery cell 200 is housed in the receiving groove 130, a first flow channel perpendicular to the depth direction of the receiving groove 130 is formed between adjacent first heat dissipation sections 122.1 and the sidewall of the battery cell 200. Between two adjacent second heat dissipation sections 122.2, the airflow direction is parallel to the depth direction of the receiving groove 130. Similarly, when the battery cell 200 is housed in the receiving groove 130, a second flow channel penetrating each battery cell mounting bracket 100 can be formed between two adjacent second heat dissipation sections 122.2 and the sidewall of the battery cell 200. This allows airflow to pass sequentially through each battery cell 200 within the battery cell mounting bracket 100, improving heat dissipation efficiency. Furthermore, all first flow channels are connected to second flow channels, facilitating the convergence of airflow from the first flow channels to the second flow channels, or the dispersion of airflow from the second flow channels to the first flow channels, thus simplifying airflow control. Specifically, when the battery cell mounting brackets 100 are stacked and the battery cells 200 are housed in the receiving slot 130, air can be blown onto the battery cell mounting brackets 100 located at the end. The airflow flows through the second flow channel and then disperses to the first flow channel to cool the battery cells 200. Alternatively, air can be drawn into the battery cell mounting brackets 100 located at the end, thereby driving the airflow through the first through hole 111 into the first channel and converging in the second channel, and then flowing out of the battery cell mounting brackets 100 at the suction position. This method is convenient to operate and has a good heat dissipation effect.

[0040] It is understood that the cell mounting bracket 100 of some embodiments of the first aspect of the present invention further includes a plurality of partitions 140, which are disposed within a receiving groove 130 and are used to divide the receiving groove 130 into a plurality of side-by-side receiving areas, each receiving area for receiving one cell 200. Figure 1 Specifically, the separator 140 consists of two protrusions located on two opposite plates of the support frame 110, dividing the space of the receiving groove 130 into two receiving areas so that one side of the heat sink 120 can accommodate two battery cells 200. While defining the position of the battery cells 200, the protrusions also ensure interconnection between the receiving areas accommodating the battery cells 200, facilitating airflow and improving heat dissipation efficiency. Of course, the separator 140 can also be fixed to the heat sink 120. Furthermore, multiple sets of separators 140 can be provided to allow one side of the heat sink 120 to accommodate more battery cells 200.

[0041] Understandably, each heat dissipation rib 122 includes multiple first heat dissipation portions 122.1 and multiple second heat dissipation portions 122.2. The multiple first heat dissipation portions 122.1 in the same heat dissipation rib 122 correspond one-to-one with multiple receiving areas, and each second heat dissipation portion 122.2 is disposed between two adjacent first heat dissipation portions 122.1. This arrangement ensures that when the cell mounting brackets 100 are stacked and the cell 200 is housed in the receiving slot 130, the second channel is located between adjacent cell 200s, thus guaranteeing the flow of the second channel.

[0042] Combination Figure 1 and 2 Specifically, two battery cells 200 can be accommodated between two adjacent battery cell mounting brackets 100. Each heat dissipation rib 122 includes two first heat dissipation parts 122.1 and one second heat dissipation part 122.2. The second heat dissipation part 122.2 is located between the two first heat dissipation parts 122.1, and one end of the first heat dissipation part 122.1 is connected to the second heat dissipation part 122.2, and the other end is connected to the inner wall of the support frame 110. First through holes 111 are provided on both side walls connecting the first heat dissipation parts 122.1. This arrangement forms two sets of first flow channels and two sets of second flow channels on both sides of the connecting plate, wherein the two sets of second flow channels are interconnected. This allows the airflow to eventually converge and be located in the middle of the battery cell mounting bracket 100, so that when air is drawn in or blown into the battery cell mounting bracket 100 located at the end, the battery cells 200 on both sides of the connecting plate can be cooled simultaneously, improving heat dissipation efficiency.

[0043] Understandably, each heat dissipation rib 122 may include a first heat dissipation part 122.1 and a second heat dissipation part 122.2, the first heat dissipation part 122.1 and the second heat dissipation part 122.2 being respectively connected to two oppositely arranged side walls of the support frame 110, and a first through hole 111 being formed on the side wall connecting the first heat dissipation part 122.1.

[0044] Understandably, the heat sink 120 is positioned in the middle of the support frame 110, so that receiving grooves 130 are formed on both sides of the heat sink 120, and the air guide duct 121 connects the receiving grooves 130 on both sides of the heat sink 120. Combined with Figure 1 Specifically, the support frame 110 is symmetrically arranged relative to the heat sink 120 on the plane, so that the structure of the cell mounting frame 100 is more compact and aesthetically pleasing, and it is more convenient to stack the cell mounting frame 100.

[0045] Understandably, the support frame 110 has a notch 112 that connects to the receiving groove 130. The notch 112 allows the cell terminal 210 of the battery cell 200, which is housed in the receiving groove 130, to be exposed outside the support frame 110. In a battery module, multiple battery cells 200 need to be connected in series or parallel, and wiring harnesses are also needed to connect the battery cells 200 to external devices to enable power transfer between the battery module and external devices. When the battery cell 200 is housed in the receiving groove 130, the cell terminal 210 passes through the notch 112 for easy connection. Figure 1 Specifically, a notch 112 is provided on the side wall adjacent to the side wall of the first through hole 111.

[0046] Understandably, the support frame 110 is provided with several positioning grooves 114 and positioning protrusions 115. The positioning grooves 114 and positioning protrusions 115 are located on two sides of the support frame 110 perpendicular to the depth direction of the receiving groove 130, and the two cell mounting brackets 100 can be connected and positioned to each other through the cooperation of the positioning grooves 114 and positioning protrusions 115. Figure 1 Specifically, on two sides of the support frame 110 perpendicular to the depth direction of the receiving groove 130, one side is provided with a plurality of alternately distributed first positioning protrusions 115 and a plurality of first positioning grooves 114, and the other side is provided with second positioning grooves 114 corresponding to and adapted to the first positioning protrusions 115 and second positioning protrusions 115 corresponding to and adapted to the first positioning grooves 114. This can assist in the positioning of adjacent cell mounting frames 100, so that when the cell mounting frames 100 are stacked together, they fit more tightly.

[0047] It is understandable that, on one of the two sides of the support frame 110 perpendicular to the depth direction of the receiving groove 130, only a positioning protrusion 115 may be provided on one side, while only a positioning groove 114 corresponding to and adapted to the positioning protrusion 115 may be provided on the other side.

[0048] Understandably, the support frame 110 has several second through holes 113, which are located at the bottom of the positioning groove 114 and pass through the positioning protrusion 115 opposite to the positioning groove 114. The battery module requires multiple cell mounting brackets 100 to be stacked together, and fasteners are passed through the second through holes 113 to secure the multiple cell mounting brackets 100 together. Figure 1 and Figure 2 Specifically, the second through hole 113 is a hexagonal through hole, and the fastener is a hexagonal rod. This arrangement can prevent the fastener from rotating relative to the second through hole 113.

[0049] Specifically, some of the second through holes 113 are opened at the bottom of the first groove and pass through the second protrusion, and some of the second through holes 113 are opened at the bottom of the second groove and pass through the first protrusion.

[0050] The following is combined with Figure 3 The battery module described in the second aspect of the present invention includes a battery cell 200 and at least two battery cell mounting brackets 100 as described in the first aspect embodiment. The battery cell mounting brackets 100 are stacked along the depth direction of the receiving groove 130, and the battery cell 200 is disposed between adjacent battery cell mounting brackets 100 and accommodated within the receiving groove 130. By stacking the battery cell mounting brackets 100 sequentially and accommodating the battery cell 200 within the receiving groove 130, multiple battery cells 200 can operate simultaneously, thereby enhancing the power supply efficiency of the battery module. At this time, battery cells 200 are accommodated on both sides of the heat sink 120, so the heat sink 120 can simultaneously dissipate the heat generated by the battery cells 200 on both sides, thereby improving the heat dissipation efficiency of the battery module. Simultaneously, when stacking the battery cell mounting brackets 100, a receiving space can be formed between adjacent battery cell mounting brackets 100 to define the position of the battery cell 200. This simplifies the operation, streamlines the assembly process, saves manual installation time, and improves the tolerance for changes in the size of the battery cell 200.

[0051] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery cell mounting bracket, characterized in that, include: Support frame; A heat sink is fixed to the inner wall of the support frame and cooperates with the support frame to form a receiving groove for accommodating the battery cell; wherein, The support frame has several first through holes at the connection of the heat sink, and the heat sink has air guide grooves that communicate with the first through holes and the air guide grooves communicate with the receiving grooves. The first through holes and the air guide grooves cooperate to form a heat dissipation channel. The heat sink is composed of at least two heat sink ribs, with both ends of each rib fixed to the inner wall of the support frame. An air guide groove is formed between adjacent heat sink ribs. Each heat sink rib includes a first heat sink and a second heat sink connected to each other along its length. The plane of the first heat sink is perpendicular to the depth direction of the receiving groove. Between two adjacent first heat sinks, the airflow direction is perpendicular to the depth direction of the receiving groove. The plane of the second heat sink is parallel to the depth direction of the receiving groove. Between two adjacent second heat sinks, the airflow direction is parallel to the depth direction of the receiving groove.

2. The cell mounting bracket according to claim 1, characterized in that, It also includes several separators disposed within the receiving slot and used to divide the receiving slot into multiple side-by-side receiving areas, each receiving area being used to receive one of the battery cells.

3. The cell mounting bracket according to claim 2, characterized in that, Each of the heat dissipation ribs includes a plurality of first heat dissipation parts and a plurality of second heat dissipation parts. The plurality of first heat dissipation parts in the same heat dissipation rib are respectively arranged in a one-to-one correspondence with the plurality of receiving areas, and each of the second heat dissipation parts is arranged between two adjacent first heat dissipation parts.

4. The cell mounting bracket according to claim 1, characterized in that, The heat sink is disposed in the middle of the support frame, such that the receiving groove is formed on both sides of the heat sink, and the air guide groove connects the receiving grooves on both sides of the heat sink.

5. The cell mounting bracket according to claim 1, characterized in that, The support frame has a notch that connects to the receiving slot, and the notch is used to expose the electrode post of the battery cell to the support frame.

6. The cell mounting bracket according to any one of claims 1 to 5, characterized in that, The support frame is provided with a plurality of positioning grooves and positioning protrusions. The positioning grooves and positioning protrusions are provided on two sides of the support frame perpendicular to the depth direction of the receiving groove, and the two battery cell mounting frames can be connected and positioned to each other through the cooperation of the positioning grooves and positioning protrusions.

7. The cell mounting bracket according to claim 6, characterized in that, The support frame has several second through holes, which are located at the bottom of the positioning groove and pass through the positioning protrusion opposite to the positioning groove.

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