Battery fixing piece, battery pack and energy storage power supply

Abstract

The utility model provides a battery fixing part, a battery pack and an energy storage power supply. The battery fixing piece is used for fixing the battery cell; the battery fixing piece is provided with a limiting part and a convex rib. The limiting part sinks to form a limiting groove. The limiting groove is configured to accommodate at least part of the battery cell and limit the battery cell. The limiting part is further provided with a first exhaust channel. The first exhaust channel communicates with the limiting groove and the outside of the battery fixing piece. And the convex rib is arranged in the limiting groove and is configured to abut against the battery cell, so that an exhaust space is formed between the limiting part and the battery cell. And the exhaust space is communicated with the first exhaust channel and is configured to be communicated with a safety valve of the battery cell. According to the battery fixing part, the battery pack and the energy storage power supply provided by the invention, smooth exhaust is facilitated when a battery cell sprays a valve, and the exhaust efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of energy storage devices, and particularly to a battery fixing member, a battery pack, and an energy storage power supply. Background Art

[0002] When assembling battery cells in a battery box, the battery cells are usually inserted into the limiting structure of the battery box, and the ends of the battery cells will abut against the limiting structure of the battery box to limit the battery cells and improve the stability of the battery cell fixation. However, the safety valves of the battery cells are usually provided at the ends and will be blocked by the limiting structure of the battery box, resulting in poor exhaust of the spray valves of the battery cells, thereby causing thermal runaway of the battery cells. Summary of the Utility Model

[0003] In view of this, the present application provides a battery fixing member, a battery pack, and an energy storage power supply to facilitate smooth exhaust and improve exhaust efficiency when the battery cell spray valves.

[0004] An embodiment of the present application provides a battery fixing member for fixing a battery cell. The battery fixing member is provided with a limiting portion and a rib. The limiting portion is recessed to form a limiting groove. The limiting groove is configured to accommodate at least a part of the battery cell and limit the battery cell. The limiting portion is further provided with a first exhaust passage. The first exhaust passage communicates the limiting groove with the outside of the battery fixing member. The rib is provided in the limiting groove and is configured to abut against the battery cell so as to form an exhaust space between the limiting portion and the battery cell. The exhaust space communicates with the first exhaust passage and is configured to communicate with the safety valve of the battery cell.

[0005] In the above embodiment, the limiting portion is provided with a limiting groove for the battery cell to be inserted, so that the battery fixing member fixes and limits the battery cell. The rib abuts against the battery cell, thereby cooperating with the limiting portion to fix and limit the battery cell. And the rib is provided in the limiting groove. While being able to stably fix and limit the battery cell, the outer wall surface of the battery cell is spaced from the groove wall of the limiting groove, thereby forming an exhaust space between the limiting portion and the battery cell. The exhaust space communicates with the safety valve of the battery cell, so that after the safety valve of the battery cell sprays the valve, the gas can be smoothly exhausted through the exhaust space. And the limiting portion is provided with a first exhaust passage, so that after the gas after the battery cell sprays the valve enters the exhaust space, it can be smoothly discharged from the battery fixing member through the first exhaust passage to improve the exhaust efficiency and is beneficial to avoiding gas accumulation.

[0006] In some embodiments of the present application, the rib is provided on the bottom wall of the limiting groove and is configured to abut against the end of the battery cell, so as to form an exhaust space between the bottom wall of the limiting groove and the safety valve at the end of the battery cell. The side wall of the limiting groove is provided with a groove and extends to the exhaust space to form a first exhaust passage.

[0007] In the above embodiments, a safety valve is usually provided at the end of the battery cell, and a convex rib is provided on the bottom wall of the limiting groove. On the one hand, it is convenient to construct an exhaust space between the end of the battery cell and the bottom wall of the limiting groove. On the other hand, when the battery cell is plugged in, the side of the convex rib away from the battery cell can be stopped by the bottom wall of the limiting groove, so that the convex rib can bear the force applied by the battery cell, which is conducive to maintaining the stability of the convex rib structure; and by constructing an exhaust space at the battery cell spray valve, a certain amount of gas can be temporarily stored, thereby slowing down the speed of increasing the air pressure at the battery cell spray valve, which is conducive to maintaining the gas flow rate of the battery cell spray valve. At the same time, a groove is provided on the side wall of the limiting groove as the first exhaust channel, which is convenient for planning the path to guide the gas in the exhaust space to the outside of the battery fixing part, and on the other hand, it is conducive to making the limiting groove and the battery cell have a larger contact area to improve the stability of the fixed battery cell.

[0008] In some embodiments of the present application, two convex ribs are provided in the limiting groove. The two convex ribs are arranged at intervals and both extend to connect with the side wall of the limiting groove. The exhaust space is formed between the two convex ribs.

[0009] In the above embodiment, two convex ribs are provided to limit the range of the exhaust space so as to guide the gas in the exhaust space to the groove, thereby improving the exhaust efficiency.

[0010] In some embodiments of the present application, the battery fixing member is further provided with at least two reinforcing ribs. The at least two reinforcing ribs are provided on the bottom wall of the limiting groove and are respectively located on two opposite sides of the two convex ribs. The reinforcing ribs connect a corresponding convex rib and the side wall of the limiting groove.

[0011] In the above embodiment, at least one reinforcing rib is arranged between the side of each rib facing away from the exhaust space and the side wall of the limiting groove as a support, so as to improve the structural strength of the rib, so that the rib can withstand a greater air pressure, which is beneficial for the exhaust space to accommodate more gas generated by the eruption of the battery cell, so as to improve the exhaust efficiency.

[0012] In some embodiments of the present application, the side wall of the limiting groove is provided with two grooves, and the two ends of each convex rib extend to the two grooves respectively, so that the exhaust space is connected with both grooves.

[0013] In the above embodiment, the convex rib guides the gas in the exhaust space to the two grooves, and discharges the gas to the outside of the battery fixing component through the two grooves, which is conducive to quickly discharging the gas in the exhaust space to improve the exhaust efficiency.

[0014] In some embodiments of the present application, the bottom wall of the limiting groove is provided with a clearance opening, which is configured to connect the power core to the adapter, and the clearance opening communicates the exhaust space with the outside of the battery fixing member.

[0015] In the above embodiment, the avoidance opening can facilitate the connection between the battery cell and the adapter plate, and at the same time, allow the gas in the exhaust space to be discharged to the outside of the battery fixing component, which is beneficial to improving the exhaust efficiency.

[0016] In some embodiments of the present application, the avoidance opening includes a first sub-opening and a second sub-opening. The first sub-opening and the second sub-opening correspond to the positive electrode and the negative electrode of the battery cell, respectively. The battery fixing member is also provided with a separation rib. The separation rib separates the first sub-opening and the second sub-opening. The separation rib is configured to abut the battery cell so that an exhaust space is formed between the limiting portion and the battery cell.

[0017] In the above embodiment, the positive and negative electrodes of some cells are located at the same end, and the separation rib can separate the first sub-port and the second sub-port to avoid short circuit between the positive and negative electrodes when the cell is connected to the adapter. In addition, the separation rib can be supported between the bottom wall of the limiting groove and the end of the cell, thereby improving the stability of the cell fixation and assisting in constructing an exhaust space to facilitate exhaust after the cell spray valve.

[0018] In some embodiments of the present application, the limiting portion is provided with a notch, which is located on the side wall of the limiting groove and leads to a side away from the bottom wall of the limiting groove.

[0019] In the above embodiment, by providing the notch, when the battery cell is plugged into the limiting groove, the limiting portion is easily deformed, which is beneficial for plugging the battery cell into place, thereby improving the stability of the limiting portion in fixing the battery cell.

[0020] An embodiment of the present application provides a battery pack. The battery pack includes a battery cell and a battery fixing member as described in any of the above embodiments. The battery cell is inserted into a limiting groove.

[0021] In the above embodiment, the battery cell is plugged into the limiting groove to connect the battery cell to the battery fixing member, which is beneficial to smooth exhaust when the battery cell sprays the valve and improves the exhaust efficiency of the battery pack.

[0022] An embodiment of the present application provides an energy storage power supply. The energy storage power supply includes a housing and a battery pack as described in any of the above embodiments. The battery pack is disposed in the housing. The housing is provided with a second exhaust channel. The second exhaust channel communicates with the first exhaust channel and the outside of the housing.

[0023] In the above embodiment, the battery fixing part is exhausted through the first exhaust channel after the battery cell valve is opened, and is exhausted to the outside of the housing through the second exhaust channel, so as to facilitate smooth exhaust when the battery cell valve is opened. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope.

[0025] Figure 1Structural schematic diagram of an energy storage power supply provided by an embodiment of the present application;

[0026] Figure 2 For Figure 1 Structural schematic diagram of the energy storage power supply with some structures omitted in

[0027] Figure 3 For Figure 2 Cross-sectional view of the A-A section in

[0028] Figure 4 For Figure 3 Enlarged view of part B in

[0029] Figure 5 For Figure 2 Explosion diagram of the energy storage power supply in

[0030] Figure 6 Structural schematic diagram of a battery fixing member provided by an embodiment of the present application;

[0031] Figure 7 For Figure 6 Structural schematic diagram of the battery fixing member from another perspective in

[0032] Figure 8 Structural schematic diagram of the cooperation between the battery fixing member and the housing of the energy storage power supply provided by an embodiment of the present application.

[0033] Description of main component symbols

[0034] 100 - Battery fixing member 200 - Battery pack 300 - Energy storage power supply

[0035] 10 - Limiting portion 11 - Limiting groove 12 - Notch

[0036] 20 - Rib 30 - Exhaust space 40 - Reinforcing rib

[0037] 50 - Partition rib

[0038] 111 - Groove 112 - Avoidance opening 201 - Battery cell

[0039] 202 - Adapter plate 203 - Circuit board 301 - Housing

[0040] 302 - Battery box

[0041] 1121 - First sub - opening 1122 - Second sub - opening 1123 - Gap

[0042] 3011 - Second exhaust passage 3021 - Top shell 3022 - Bottom shell

[0043] 3023 - Pressure relief valve Detailed implementation manners

[0044] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this application belongs. The terms used in the description of this application herein are only for the purpose of describing specific embodiments, and are not intended to limit this application.

[0046] In the description of this application, it should be noted that the orientation or positional relationship indicated by terms such as "inner" and "outer" is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this application 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 therefore should not be construed as a limitation to this application.

[0047] In addition, terms such as "first" and "second" are only used for descriptive purposes, and cannot be construed as indicating or implying relative importance.

[0048] When assembling the battery cells into the battery box, the battery cells are usually inserted into the limiting structure of the battery box, and the ends of the battery cells will abut against the limiting structure of the battery box to limit the battery cells and improve the stability of the battery cell fixation. However, the safety valve of the battery cell is usually provided at the end, which will be blocked by the limiting structure of the battery box, resulting in poor exhaust of the spray valve of the battery cell, thereby causing thermal runaway of the battery cell.

[0049] The embodiments of the present application provide a battery fixing member, a battery pack, and an energy storage power supply. The battery fixing member is used to fix the battery cells. The battery fixing member is provided with a limiting portion and a rib. The limiting portion is recessed to form a limiting groove. The limiting groove is configured to accommodate at least a part of the battery cell and limit the battery cell. The limiting portion is further provided with a first exhaust passage. The first exhaust passage communicates the limiting groove with the outside of the battery fixing member. The rib is provided in the limiting groove and is configured to abut against the battery cell, so as to form an exhaust space between the limiting portion and the battery cell. The exhaust space communicates with the first exhaust passage and is configured to communicate with the safety valve of the battery cell.

[0050] The limiting part is provided with a limiting groove for the battery core to be inserted, so that the battery fixing part can fix and limit the battery core. The rib abuts against the battery core, so as to cooperate with the limiting part to fix and limit the battery core. The rib is arranged in the limiting groove. While being able to stably fix and limit the battery core, it makes the outer wall surface of the battery core and the groove wall of the limiting groove be spaced apart, so as to form an exhaust space between the limiting part and the battery core. The exhaust space is communicated with the safety valve of the battery core, so that after the safety valve of the battery core sprays the valve, the gas can be exhausted smoothly through the exhaust space. And by arranging the first exhaust channel in the limiting part, after the gas after the battery core sprays the valve enters the exhaust space, it can be smoothly discharged from the battery fixing part through the first exhaust channel, so as to improve the exhaust efficiency and is beneficial to avoiding gas accumulation.

[0051] The following will describe in detail some embodiments of the present application with reference to the drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0052] See Figure 1 , an embodiment of the present application provides an energy storage power supply 300. The energy storage power supply 300 has the functions of storing and discharging electricity, and is used for home power backup, power backup for production units, outdoor operations, outdoor entertainment, etc.

[0053] See Figure 1 , Figure 2 and Figure 5 , in some embodiments, the energy storage power supply 300 includes a housing 301 and a battery pack 200. The battery pack 200 is arranged in the housing 301. The housing 301 is used to protect the battery pack 200.

[0054] In some embodiments, the energy storage power supply 300 includes a power conversion module (not shown in the figure). The power conversion module is arranged in the housing 301. The housing 301 protects the power conversion module. The power conversion module is electrically connected to the battery pack 200. The power conversion module is used to realize the AC-DC conversion control of the output current of the battery pack 200. The energy storage power supply 300 provided with the power conversion module can be a small portable mobile power supply, a household energy storage power supply, an industrial and commercial energy storage power supply or a container-type energy storage power supply, etc.

[0055] In some embodiments, the power conversion module can be omitted. The energy storage power supply 300 without the power conversion module can be used independently. The energy storage power supply 300 without the power conversion module usually can only output direct current. When the energy storage power supply 300 without the power conversion module is used independently, it can be used in coordination with the energy storage power supply 300 provided with the power conversion module as a power supply system for providing additional battery capacity.

[0056] See Figure 3 and Figure 5, in some embodiments, the battery pack 200 includes battery cells 201 and a battery fixture 100. The battery cells 201 are fixedly arranged in the battery fixture 100.

[0057] In some embodiments, there are multiple battery cells 201. The battery fixture 100 can fix multiple battery cells 201. The battery fixture 100 can be arranged on the same side of the multiple battery cells 201 or on opposite sides of the multiple battery cells 201.

[0058] See Figure 3 、 Figure 5 and Figure 7 , in some embodiments, the battery pack 200 further includes a connection tab 202 and a circuit board 203. The connection tab 202 is connected to the battery cell 201. Different battery cells 201 are connected in series or in parallel with each other through the connection tab 202, and the battery cell 201 is connected to the circuit board 203 through the connection tab 202. The circuit board 203 includes, but is not limited to, a BMS (Battery Management System) board. In other embodiments, the circuit board 203 of the battery pack 200 can be omitted.

[0059] See Figure 1 and Figure 3 , in some embodiments, when the battery pack 200 is arranged in the energy storage power supply 300 or the battery pack 200 is independently arranged, the battery cell 201 and the battery fixture 100 are placed in the battery box 302 to protect the battery cell 201. The battery fixture 100 can be arranged independently of the battery box 302 or can be an integrally formed structure with the battery box 302.

[0060] As an exemplary illustration, in combination with Figure 3 、 Figure 5 and Figure 8 shown, a battery box 302 is arranged inside the housing 301. The battery box 302 has a top case 3021 and a bottom case 3022, wherein the bottom case 3022 is an integrally formed structure with the housing 301. The top case 3021 and the bottom case 3022 are connected to accommodate the battery cell 201 and the battery fixture 100. Multiple battery cells 201 are arranged in a direction perpendicular to the direction in which the top case 3021 and the bottom case 3022 are distributed. Battery fixtures 100 are provided at both opposite ends of the multiple battery cells 201, wherein the battery fixture 100 on the side of the top case 3021 is arranged independently, and the battery fixture 100 on the side of the bottom case 3022 is an integrally formed structure with the bottom case 3022.

[0061] See Figure 3 、 Figure 6 and Figure 8, in some embodiments, the battery fixing member 100 is provided with a limiting portion 10 and a rib 20. The limiting portion 10 is recessed to form a limiting groove 11. The limiting groove 11 is configured to receive at least a part of the battery cell 201 and limit the battery cell 201. The limiting portion 10 is further provided with a first exhaust passage. The first exhaust passage communicates the limiting groove 11 with the outside of the battery fixing member 100. The rib 20 is disposed in the limiting groove 11 and is configured to abut against the battery cell 201, so as to form an exhaust space 30 between the limiting portion 10 and the battery cell 201. The exhaust space 30 communicates with the first exhaust passage and is configured to communicate with a safety valve (not shown) of the battery cell 201. Among them, in the present application Figure 6 The shown battery fixing member 100 is Figure 3 a separately provided battery fixing member 100 on one side of the top shell 3021 close to the battery box 302 in the present application Figure 8 The shown battery fixing member 100 is Figure 3 a battery fixing member 100 integrally formed with the bottom shell 3022 of the battery box 302 in the present application.

[0062] The limiting portion 10 is provided with a limiting groove 11 for the battery cell 201 to be inserted, so that the battery fixing member 100 fixes and limits the battery cell 201. The rib 20 abuts against the battery cell 201, thereby cooperating with the limiting portion 10 to fix and limit the battery cell 201. And the rib 20 is disposed in the limiting groove 11. While being able to stably fix and limit the battery cell 201, the outer wall surface of the battery cell 201 is spaced from the groove wall of the limiting groove 11, so as to form an exhaust space 30 between the limiting portion 10 and the battery cell 201. The safety valve of the battery cell 201 communicates with the exhaust space 30, so that the gas can be smoothly exhausted after the battery cell 201 sprays the valve. And the limiting portion 10 is provided with a first exhaust passage, so that after the gas after the battery cell 201 sprays the valve enters the exhaust space 30, it can be smoothly discharged from the battery fixing member 100 through the first exhaust passage, so as to improve the exhaust efficiency and is beneficial to avoiding gas accumulation.

[0063] It should be noted that the working principle of the safety valve is that when the temperature inside the battery cell is abnormal, for example, when the air pressure rises to 1.0 - 1.2 Mpa, the safety valve opens to discharge the gas inside the battery cell to avoid explosion caused by excessive pressure.

[0064] See Figure 1 、 Figure 3 and Figure 4 , in some embodiments, the outer shell 301 is provided with a second exhaust passage 3011. The second exhaust passage 3011 communicates the first exhaust passage with the outside of the outer shell 301.

[0065] After the battery cell 201 sprays the valve, it is discharged from the battery fixing member 100 through the first exhaust passage and is discharged to the outside of the outer shell 301 through the second exhaust passage 3011, so as to facilitate smooth exhaust when the battery cell 201 sprays the valve.

[0066] SeeFigure 4 , Figure 6 and Figure 8 , in some embodiments, the rib 20 is provided on the bottom wall of the limiting groove 11 and is configured to abut against the end of the battery cell 201, so as to form an exhaust space 30 between the bottom wall of the limiting groove 11 and the safety valve at the end of the battery cell 201. A groove 111 is provided on the side wall of the limiting groove 11 and extends into the exhaust space 30 to form a first exhaust passage.

[0067] Generally, a safety valve is provided at the end of the battery cell 201. The rib 20 is provided on the bottom wall of the limiting groove 11. On the one hand, it is convenient to construct an exhaust space 30 between the end of the battery cell 201 and the bottom wall of the limiting groove 11, and by constructing an exhaust space 30 at the spray valve of the battery cell 201, a certain amount of gas can be temporarily stored, thereby slowing down the rising speed of the air pressure at the spray valve of the battery cell 201 and being beneficial to maintaining the gas flow rate of the spray valve of the battery cell 201; on the other hand, when the battery cell 201 is inserted, the side of the rib 20 facing away from the battery cell 201 can be blocked by the bottom wall of the limiting groove 11, so that the rib 20 can receive the acting force applied by the battery cell 201, which is beneficial to maintaining the structural stability of the rib 20. At the same time, the groove 111 is provided on the side wall of the limiting groove 11 as the first exhaust passage. On the one hand, it is convenient to plan the path for guiding the gas in the exhaust space 30 to the outside of the battery fixing member 100, and on the other hand, it is beneficial to make the limiting groove 11 have a large contact area with the battery cell 201 to improve the stability of fixing the battery cell 201.

[0068] See Figure 3 , Figure 4 and Figure 6 , in some embodiments, the battery pack 200 is assembled in the battery box 302, and the groove 111 leads to the space around the battery cell 201, and then is discharged through the pressure relief valve 3023 of the battery box 302. When there are multiple battery cells 201, two adjacent battery cells 201 are arranged at intervals under the limitation of the limiting portion 10 to facilitate the exhaust of the groove 111.

[0069] In other embodiments, the rib 20 may not be provided on the bottom wall of the limiting groove 11, but may be provided on the side wall of the limiting groove 11. The side of the rib 20 facing away from the bottom wall of the limiting groove 11 abuts against the end of the battery cell 201, so as to form an exhaust space 30 between the end of the battery cell 201 and the bottom wall of the limiting groove 11.

[0070] In other embodiments, the groove 111 may not be provided on the side wall of the limiting groove 11, and the side wall of the limiting groove 11 may protrude with ribs to construct a first exhaust passage between the side wall of the limiting groove 11 and the side wall of the battery cell 201.

[0071] See Figure 6 and Figure 8, in some embodiments, two convex ribs 20 are provided in the limit groove 11. The two convex ribs 20 are arranged at intervals and both extend to be connected to the side wall of the limit groove 11. An exhaust space 30 is formed between the two convex ribs 20.

[0072] By providing two convex ribs 20, the range of the exhaust space 30 is limited, so as to facilitate guiding the gas in the exhaust space 30 to the groove 111 to improve the exhaust efficiency.

[0073] It can be understood that in some embodiments, each convex rib 20 can extend along a straight line, or along a broken line or an arc, as long as the exhaust space 30 can correspond to the safety valve position of the battery cell 201 and the exhaust space 30 can be guided to the first exhaust passage.

[0074] See Figure 6 and Figure 8 , in some embodiments, the battery fixing member 100 is further provided with at least two reinforcing ribs 40. The at least two reinforcing ribs 40 are arranged on the bottom wall of the limit groove 11 and are respectively located on the opposite sides of the two convex ribs 20. The reinforcing rib 40 is connected to a corresponding convex rib 20 and the side wall of the limit groove 11. Among them, in the direction perpendicular to the bottom wall of the limit groove 11, at least one reinforcing rib 40 is provided on the side of each convex rib 20 facing away from the other convex rib 20.

[0075] At least one reinforcing rib 40 is provided as a support between the side of each convex rib 20 facing away from the exhaust space 30 and the side wall of the limit groove 11, so as to facilitate improving the structural strength of the convex rib 20, so that the convex rib 20 can withstand greater air pressure, which is beneficial to the exhaust space 30 to accommodate more gas generated by the eruption of the battery cell 201, so as to improve the exhaust efficiency.

[0076] It can be understood that in some embodiments, each reinforcing rib 40 can extend along a straight line, or along a broken line or an arc, as long as it can provide support for the connected convex rib 20.

[0077] See Figure 6 and Figure 8 , in some embodiments, the reinforcing rib 40 is configured to abut against the battery cell 201, so as to form an exhaust space 30 between the limiting portion 10 and the battery cell 201.

[0078] The reinforcing rib 40 can also support between the bottom wall of the limit groove 11 and the end of the battery cell 201, improve the stability of the fixation of the battery cell 201, and assist in constructing the exhaust space 30, so as to facilitate the exhaust after the battery cell 201 sprays the valve.

[0079] It can be understood that in some embodiments, the number of convex ribs 20 provided in each limit groove 11 can be greater than two.

[0080] See Figure 6 and Figure 8, in some embodiments, two grooves 111 are provided on the side wall of the limit groove 11. Both ends of each rib 20 extend to the two grooves 111 respectively, so that the exhaust space 30 is communicated with both of the two grooves 111.

[0081] The rib 20 guides the gas in the exhaust space 30 to the two grooves 111, and discharges it to the outside of the battery fixing member 100 through the two grooves 111, which is beneficial to quickly discharge the gas in the exhaust space 30 to improve the exhaust efficiency.

[0082] It can be understood that in some embodiments, the number of grooves 111 provided in each limit groove 11 may be greater than two.

[0083] See Figure 3 、 Figure 4 and Figure 6 , in some embodiments, an avoidance opening 112 is provided on the bottom wall of the limit groove 11. The avoidance opening 112 is configured to supply power for the connection between the battery cell 201 and the adapter plate 202. The avoidance opening 112 communicates the exhaust space 30 with the outside of the battery fixing member 100.

[0084] While facilitating the connection between the battery cell 201 and the adapter plate 202, the avoidance opening 112 can discharge the gas in the exhaust space 30 to the outside of the battery fixing member 100, which is beneficial to improve the exhaust efficiency.

[0085] See Figure 6 and Figure 7 , in some embodiments, when the adapter plate 202 is assembled to the avoidance opening 112, there is a gap 1123 between the avoidance opening 112 and the adapter plate 202 for the gas to pass through. In other embodiments, the avoidance opening 112 is provided with a groove, and when the adapter plate 202 is assembled to the avoidance opening 112, the groove provided on the avoidance opening 112 allows the gas to pass through.

[0086] See Figure 3 and Figure 5 , in some embodiments, when the battery fixing member 100 and the battery cell 201 are assembled into the battery box 302, there is a spaced arrangement between the side of the battery fixing member 100 facing away from the battery cell 201 and the battery box 302. As an exemplary example, as Figure 3 and Figure 4 shown, there is a spaced arrangement between the battery fixing member 100 and the top case 3021, and the gas enters the space between the battery fixing member 100 and the top case 3021 through the gap 1123 between the avoidance opening 112 and the adapter plate 202, and is discharged from the battery box 302 through the pressure relief valve 3023 of the battery box 302.

[0087] See Figure 6In some embodiments, the avoidance opening 112 includes a first sub-opening 1121 and a second sub-opening 1122. The first sub-opening 1121 and the second sub-opening 1122 correspond to the positive electrode and the negative electrode of the battery cell 201, respectively. The battery fixing member 100 is further provided with a separation rib 50. The separation rib 50 separates the first sub-opening 1121 and the second sub-opening 1122. The separation rib 50 is configured to abut against the battery cell 201 so that an exhaust space 30 is formed between the limiting portion 10 and the battery cell 201.

[0088] The positive and negative electrodes of some battery cells 201 are located at the same end, and the separation rib 50 can separate the first sub-port 1121 and the second sub-port 1122 to prevent the positive and negative electrodes from short-circuiting when the battery cell 201 is connected to the adapter 202. In addition, the separation rib 50 can be supported between the bottom wall of the limiting groove 11 and the end of the battery cell 201 to improve the stability of the battery cell 201 and assist in constructing the exhaust space 30 to facilitate the exhaust of the battery cell 201 after the valve is sprayed.

[0089] See also Figure 3 and Figure 8 In some embodiments, when the end of the battery cell 201 is not provided with an electrode but only with a safety valve, the battery fixing member 100 may omit the avoidance opening 112 in the limiting portion 10 .

[0090] See also Figure 8 In some embodiments, the limiting portion 10 is provided with a notch 12. The notch 12 is located on the side wall of the limiting groove 11 and leads to a side away from the bottom wall of the limiting groove 11.

[0091] By providing the notch 12 , when the battery cell 201 is plugged into the limiting groove 11 , the limiting portion 10 is easily deformed, which helps to plug the battery cell 201 into place, thereby improving the stability of the limiting portion 10 in limiting and fixing the battery cell 201 .

[0092] See also Figure 3 , Figure 4 and Figure 6 In some embodiments, when the battery cell 201 and the battery fixing member 100 are assembled into the battery box 302, the exhaust path of the spray valve of the battery cell 201 is:

[0093] The convex ribs 20, reinforcing ribs 40 and partition ribs 50 abut against the end of the battery cell 201, and an exhaust space 30 is constructed between the end of the battery cell 201 and the limiting portion 10. After the battery cell 201 sprays the valve, gas enters the exhaust space 30. Part of the gas in the exhaust space 30 enters the groove 111 on the side wall of the limiting groove 11 under the guidance of the convex rib 20, then enters the space between the battery cells 201, and then is discharged from the battery box 302 through the pressure relief valve 3023 of the battery box 302. Part of the gas in the exhaust space 30 passes through the gap 1123 between the avoidance port 112 and the adapter plate 202, then enters the space between the battery fixing member 100 and the top case 3021 of the battery box 302, and then is discharged from the battery box 302 through the pressure relief valve 3023 of the battery box 302. Exemplarily, the gas discharged to the outside of the battery box 302 can be discharged to the outside of the housing 301 through the second exhaust passage 3011 of the energy storage power supply 300.

[0094] In addition, those of ordinary skill in the art in this technical field should recognize that the above embodiments are only used to illustrate the present application, rather than to limit the present application. As long as it is within the scope of the substantial spirit of the present application, appropriate changes and variations made to the above embodiments fall within the scope of the disclosure of the present application.

Claims

1. A battery fixing member for fixing a battery cell, characterized in that: The battery fixing member comprises: A limiting portion, which is recessed to form a limiting groove, wherein the limiting groove is configured to accommodate at least a portion of the battery cell and limit the battery cell, and the limiting portion is further provided with a first exhaust channel, wherein the first exhaust channel communicates with the limiting groove and the outside of the battery fixing member; and A convex rib is disposed in the limiting groove and is configured to abut against the battery cell so as to form an exhaust space between the limiting portion and the battery cell. The exhaust space is communicated with the first exhaust channel and is configured to communicate with the safety valve of the battery cell.

2. The battery fixing member according to claim 1, characterized in that: The convex rib is arranged on the bottom wall of the limiting groove and is configured to abut the end of the battery cell so that the exhaust space is formed between the bottom wall of the limiting groove and the safety valve at the end of the battery cell. The side wall of the limiting groove is provided with a groove and extends to the exhaust space to form the first exhaust channel.

3. The battery fixing member according to claim 2, characterized in that: Two convex ribs are arranged in the limiting groove, the two convex ribs are arranged at intervals, and both extend to be connected with the side wall of the limiting groove, and the exhaust space is formed between the two convex ribs.

4. The battery fixing member according to claim 3, characterized in that: The battery fixing part is also provided with at least two reinforcing ribs, at least two of which are arranged on the bottom wall of the limiting groove and are respectively located on two opposite sides of the two convex ribs, and the reinforcing ribs connect a corresponding one of the convex ribs and the side wall of the limiting groove.

5. The battery fixing member according to claim 3, characterized in that: The side wall of the limiting groove is provided with two grooves, and the two ends of each convex rib extend to the two grooves respectively, so that the exhaust space is connected with both grooves.

6. The battery fixing member according to claim 2, characterized in that: The bottom wall of the limiting groove is provided with an avoidance opening, the avoidance opening is configured for the battery core to be connected with the adapter, and the avoidance opening communicates with the exhaust space and the outside of the battery fixing component.

7. The battery fixing member according to claim 6, characterized in that: The avoidance opening includes a first sub-opening and a second sub-opening, the first sub-opening and the second sub-opening respectively correspond to the positive pole and the negative pole of the battery cell, and the battery fixing part is also provided with a partition rib, the partition rib separates the first sub-opening and the second sub-opening, and the partition rib is configured to abut the battery cell so as to form an exhaust space between the limiting part and the battery cell.

8. The battery holder according to any one of claims 1 to 7, characterized in that: The limiting portion is provided with a notch, and the notch is located on the side wall of the limiting groove and leads to a side away from the bottom wall of the limiting groove.

9. A battery pack, characterized in that: It comprises a battery cell and a battery fixing member as claimed in any one of claims 1 to 8, wherein the battery cell is inserted into the limiting groove.

10. An energy storage power supply, characterized in that: The invention comprises a shell and a battery pack as claimed in claim 9, wherein the battery pack is arranged in the shell, the shell is provided with a second exhaust channel, and the second exhaust channel connects the first exhaust channel and the outside of the shell.

Images