plug-in type energy storage battery module

Abstract

This application relates to the field of battery technology, and in particular to a plug-in type energy storage battery module, comprising a first housing, a second housing, two fixed beams, multiple batteries, two end plates, a middle plate, and a back plate; wherein, the two fixed beams are both fixed to the second housing and are spaced apart along a first preset direction; the multiple batteries are stacked sequentially along the first preset direction to form a battery assembly, and the two end plates are respectively disposed at opposite ends of the battery assembly along the first preset direction; the battery assembly and the end plates are assembled between the two fixed beams; the middle plate and the back plate are respectively disposed on opposite sides of the battery assembly along a second preset direction, and both the middle plate and the back plate are connected to at least one of the end plates and the second housing; the first housing is connected to the second housing. This application provides a novel plug-in type energy storage battery module with fewer assembly steps, improving assembly efficiency, and reducing the number of components used, thus contributing to cost reduction.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a plug-in type energy storage battery module. Background Technology

[0002] Energy storage battery packs are an important technology that has seen rapid development in the new energy field in recent years. With the widespread application of renewable energy and the improvement of grid intelligence, energy storage technology has gradually become an important part of the energy system. As an important component of the energy storage system, the energy storage battery pack plays an indispensable role. Existing energy storage battery packs typically include a sheet metal casing, battery modules, and a main control board. During assembly, the battery modules need to be assembled first, and then the assembled battery modules are inserted into the casing, which is a relatively cumbersome operation. Utility Model Content

[0003] The purpose of this application is to provide a plug-in type energy storage battery module, which to some extent solves the technical problem that existing energy storage battery plug-in boxes require battery modules to be assembled first, and then the assembled battery modules to be put into the casing, which is a relatively complicated operation.

[0004] This application provides a plug-in type energy storage battery module, including: a first housing, a second housing, two fixing beams, multiple batteries, two end plates, a middle plate, and a back plate; wherein, the two fixing beams are both fixed to the second housing and are spaced apart along a first preset direction; the multiple batteries are stacked sequentially along the first preset direction to form a battery assembly, and the two end plates are respectively disposed at opposite ends of the battery assembly along the first preset direction;

[0005] The battery assembly and the end plate assembly are mounted between the two fixed beams; the middle plate and the back plate are respectively disposed on opposite sides of the battery assembly along a second preset direction, and the middle plate and the back plate are connected to at least one of the end plate and the second housing; the first housing is connected to the second housing.

[0006] In the above technical solution, the second housing further includes a motherboard and two first mounting flanges connected to the motherboard; wherein, along the first preset direction, the two first mounting flanges are respectively disposed on opposite sides of the motherboard;

[0007] Both of the fixed beams are located on the main board, and one of the fixed beams abuts against and is connected to one of the first mounting flanges, while the other fixed beam abuts against and is connected to the other of the first mounting flanges.

[0008] In any of the above technical solutions, the first housing further includes a main cover and two side cover plates connected to the main cover; wherein, along the first preset direction, the two side cover plates are respectively disposed on opposite sides of the main cover, and the two side cover plates extend to the outer side of two corresponding first mounting flanges, and the two side cover plates are detachably connected to the two corresponding first mounting flanges by a first fastening member.

[0009] In any of the above technical solutions, the fixed beam and the corresponding first mounting flange are detachably connected by a second fastening member.

[0010] In any of the above technical solutions, the plug-in type energy storage battery module further includes a main control board and a front panel; wherein, the second housing also includes a second mounting flange connected to the motherboard, and along the second preset direction, the main control board is disposed on the inner side of the second mounting flange near the battery assembly, the front panel is disposed on the outer side of the second mounting flange away from the motherboard, and the front panel and the second mounting flange are detachably connected by a third fastening member, and the main control board and the motherboard are detachably connected by a fourth fastening member.

[0011] In any of the above technical solutions, the front panel is further provided with a mounting beam, and the mounting beam is detachably connected to the first housing via a fifth fastening member.

[0012] In any of the above technical solutions, the middle plate is further provided with a first mounting flange portion, which abuts against the inner side of the main plate near the first housing and is detachably connected by a sixth fastening member, wherein the sixth fastening member is not exposed on the side of the first housing away from the second housing.

[0013] In any of the above technical solutions, the back plate is further provided with a second mounting flange, which abuts against the inner side of the main board near the first housing and is detachably connected by a seventh fastening member, which is not exposed on the side of the first housing away from the second housing.

[0014] In any of the above technical solutions, the end plate is further provided with a first support flange extending toward the fixed beam, and the first support flange sits on the fixed beam and is connected to the fixed beam.

[0015] In any of the above technical solutions, one of the fixed beam and the first supporting flange is provided with a positioning protrusion, and the other is provided with a positioning hole, wherein the positioning protrusion is inserted into the positioning hole.

[0016] In any of the above technical solutions, the first support flange is further detachably connected to the fixed beam via an eighth fastening member.

[0017] In any of the above technical solutions, the end plate is further provided with a binding through hole for binding wire harnesses.

[0018] In any of the above technical solutions, the end plate is further provided with a second support flange extending toward the side opposite to the battery assembly, and the second support flange is detachably connected to the middle plate by a ninth fastening member.

[0019] In any of the above technical solutions, the end plate is further provided with a third support flange extending toward the side away from the battery assembly, and the third support flange is detachably connected to the back plate via a tenth fastening member.

[0020] In any of the above technical solutions, the end plate is further provided with an L-shaped auxiliary support flange with an opening facing the fixed beam, and the auxiliary support flange is detachably connected to the side of the first housing through an auxiliary fastening member.

[0021] In any of the above technical solutions, the edges of both the first housing and the second housing have rounded corners.

[0022] In any of the above technical solutions, a first cushioning foam is provided between the first housing and the battery assembly, and a first insulating layer is attached to the surface of the first housing near the battery assembly.

[0023] In any of the above technical solutions, a second cushioning foam is provided between the second housing and the battery assembly, and a second insulating layer is attached to the surface of the first housing near the battery assembly.

[0024] Compared with the prior art, the beneficial effects of this application are as follows:

[0025] This application provides a novel plug-in type energy storage battery module that no longer uses the existing battery module structure. Instead, multiple batteries stacked sequentially and the end plates on both sides are pre-pressed to a preset size and then directly inserted into the casing, eliminating the need for binding straps or other structures. In other words, there is no need to assemble them before inserting them into the casing. The module is fixed and limited on the large side by two fixing beams, while the auxiliary middle plate and back plate fix and limit the other two sides of the multiple batteries. The assembly accuracy is high, and the operation is simple and convenient, which saves assembly steps and directly inserts the components, thereby greatly reducing costs.

[0026] In addition, traditional modules require laser welding of the busbars after the module straps are installed, and then the module is hoisted into the housing for fixation. In this application, the battery can be directly moved into the welding workstation after being installed in the housing for busbar welding. This avoids problems such as size mismatch, module deformation, and weld failure caused by stress on the busbar that occur in the traditional module welding process before installation into the housing.

[0027] In addition, the end plates of the battery assembly are connected to the first shell, middle plate, bottom plate and second shell by fastening components such as bolts or bolts, which greatly improves the strength compared with the traditional steel strip binding structure and can effectively limit the expansion of the battery during its life cycle.

[0028] In addition, the first housing, such as the top cover, is connected to the front panel, the second housing, the middle plate, and the back plate using fastening components such as bolts or bolts, resulting in higher overall strength and better vibration resistance.

[0029] Furthermore, when the plug-in type energy storage battery module is installed vertically, the main board of the second housing serves as the side. Since there are no bolts or other fastening components on this surface, it ensures aesthetics and allows for pattern silkscreen design to enhance the appearance. When the plug-in type energy storage battery module is placed horizontally, the main board of the second housing serves as the bottom surface. Since there are no bolts or other fastening components on the bottom surface during use, it can also prevent scratches during the pushing process and reduce damage to the frame. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 An exploded view of the plug-in type energy storage battery module provided in the embodiments of this application;

[0032] Figure 2This is a schematic diagram of the structure of the plug-in type energy storage battery module provided in the embodiments of this application;

[0033] Figure 3 This is another structural schematic diagram of the plug-in type energy storage battery module provided in the embodiments of this application;

[0034] Figure 4 Another structural schematic diagram of the plug-in type energy storage battery module provided in the embodiments of this application;

[0035] Figure 5 A schematic diagram of the structure of the second housing provided in an embodiment of this application;

[0036] Figure 6 for Figure 4 A partially enlarged structural diagram;

[0037] Figure 7 A schematic diagram of the structure of the plug-in type energy storage battery module with the first housing opened, as provided in the embodiments of this application;

[0038] Figure 8 for Figure 7 A partially enlarged structural diagram;

[0039] Figure 9 Another structural schematic diagram showing the first housing of the plug-in type energy storage battery module provided in the embodiments of this application;

[0040] Figure 10 This is a schematic diagram of the end plate provided in an embodiment of this application;

[0041] Figure 11 This is another structural schematic diagram of the end plate provided in an embodiment of this application.

[0042] Figure label:

[0043] 1-First housing, 101-Main board cover, 102-Side panel cover, 2-Second housing, 201-Main board, 202-First mounting flange, 203-Second mounting flange, 3-Fixing beam, 31-Positioning protrusion, 4-Battery assembly, 41-Battery, 5-End plate, 51-First support flange, 511-Positioning hole, 52-Second support flange, 53-Third support flange, 54-Auxiliary support flange, 55-Binding through hole, 6-Middle plate, 61-First assembly 7-Back panel, 71-Second assembly flange, 8-Main control board, 9-Front panel, 10-Mounting beam, 11-First fastening component, 12-Second fastening component, 13-Third fastening component, 14-Fourth fastening component, 15-Fifth fastening component, 16-Sixth fastening component, 17-Seventh fastening component, 18-Eighth fastening component, 19-Ninth fastening component, 20-Tenth fastening component, 21-Auxiliary fastening component, a-First preset direction, b-Second preset direction. Detailed Implementation

[0044] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0045] The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application.

[0046] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0047] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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 limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0049] The following reference Figures 1 to 11 This application describes a plug-in type energy storage battery module according to some embodiments.

[0050] See Figures 1 to 9As shown, an embodiment of this application provides a plug-in type energy storage battery module 41, including: a first housing 1, a second housing 2, two fixing beams 3, multiple batteries 41, two end plates 5, a middle plate 6, and a back plate 7; wherein, the two fixing beams 3 are both fixed to the second housing 2 and are spaced apart along a first preset direction a; the multiple batteries 41 are stacked sequentially along the first preset direction a to form a battery assembly 4, and along the first preset direction a, the two end plates 5 are respectively disposed at opposite ends of the battery assembly 4;

[0051] The battery assembly 4 and the end plate 5 are installed between two fixed beams 3; the middle plate 6 and the back plate 7 are respectively arranged on opposite sides of the battery assembly 4 along the second preset direction b, and the middle plate 6 and the back plate 7 are connected to at least one of the end plate 5 and the second housing 2; the first housing 1 is connected to the second housing 2.

[0052] As can be seen from the structure described above, this application provides a novel plug-in type energy storage battery 41 module. Instead of using the existing battery 41 module structure, multiple batteries 41 stacked sequentially and the end plates 5 on both sides are pre-pressed to a preset size and then directly inserted into the shell, eliminating the need for binding straps or other structures. In other words, there is no need to assemble them first and then insert them into the shell. Furthermore, the large side is fixed and limited by two fixing beams 3, while the auxiliary middle plate 6 and back plate 7 fix and limit the other two sides of the multiple batteries 41. The assembly accuracy is high, and the operation is simple and convenient, which saves assembly steps and directly inserts the components, thereby greatly reducing costs.

[0053] In addition, traditional modules require laser welding of the busbars after the module is installed with straps, and then it is hoisted into the housing for fixation. In this application, the battery 41 can be directly placed into the housing and moved into the welding workstation for busbar welding. This avoids problems such as size mismatch, module deformation, and weld failure caused by stress on the busbar that occur in the traditional module welding process before installation into the housing.

[0054] Furthermore, preferably, the first preset direction a is the thickness direction of the battery 41, and the second preset direction b is the length direction of the battery 41. Of course, it is not limited to this, and can be selected according to actual needs.

[0055] It should be noted that the assembly steps of the plug-in type energy storage battery 41 module are not limited to those described above. Alternatively, the middle plate 6 and back plate 7 can be assembled with the end plate 5 of the battery assembly 4 before being installed into the casing. The specific steps can be selected according to actual needs.

[0056] In addition, it should be noted that: under normal use, this plug-in type energy storage battery 41 module is placed horizontally, with the first housing 1 serving as the upper housing and the second housing 2 serving as the lower housing. However, it is not limited to this and the placement can be selected according to actual needs. For example, this plug-in type energy storage battery 41 module can also be placed vertically. In this case, the back plate 7 serves as the bottom plate, and the first housing 1 and the second housing 2 serve as the side structure.

[0057] Furthermore, preferably, the first preset direction a is the thickness direction of the battery 41, and the second preset direction b is perpendicular to the first preset direction a. Of course, it is not limited to this.

[0058] In this embodiment, preferably, as follows: Figures 4 to 6 As shown, the second housing 2 includes a motherboard 201 and two first mounting flanges 202 connected to the motherboard 201; wherein, along the first preset direction a, the two first mounting flanges 202 are respectively disposed on opposite sides of the motherboard 201;

[0059] Both fixed beams 3 are located on the main board 201, and one of the fixed beams 3 abuts against and is connected to one of the first mounting flanges 202, while the other fixed beam 3 abuts against and is connected to the other first mounting flange 202.

[0060] As can be seen from the structure described above, the second housing 2 is designed as a main board 201 and a first mounting flange 202. The main board 201 can serve as the main support, and the first mounting flange 202 can limit the position of the fixed beam 3.

[0061] Furthermore, preferably, the motherboard 201 has a flat structure, but of course, it is not limited to this.

[0062] Furthermore, preferably, the motherboard 201 and the two first mounting flanges 202 are an integrated structure. Of course, this is not the only option; other options can be selected according to actual needs.

[0063] Furthermore, preferably, the edges of the second housing 2 are all rounded, that is, the edges where the first mounting flange 202 connects to the main board 201 are rounded, which makes the appearance more aesthetically pleasing.

[0064] In this embodiment, preferably, as follows: Figure 2 and Figure 3As shown, the first housing 1 includes a main cover 101 and two cover side plates 102 connected to the main cover 101; wherein, along the first preset direction a, the two cover side plates 102 are respectively disposed on opposite sides of the main cover 101, forming a U-shaped housing; the two cover side plates 102 extend to the outside of two corresponding first mounting flanges 202, and the two cover side plates 102 are detachably connected to the two corresponding first mounting flanges 202 by a first fastening member 11, such as a screw or bolt.

[0065] As can be seen from the structure described above, the U-shaped housing, i.e. the first housing 1, can be directly fastened to the outside of the battery assembly 4 and the first housing 1. The side of the U-shaped housing, i.e. the first housing 1, can be connected to the side of the second housing 2 using the first fastening member 11, such as screws or bolts, making the whole structure more robust. Moreover, when the plug-in box is in use, especially since there is no first fastening member 11, such as screws or bolts, on its bottom surface, it can effectively prevent scratching during the pushing process, thereby avoiding damage to the plug-in type energy storage battery 41 module. Furthermore, the first housing 1 and the second housing 2 adopt a detachable connection method, which is convenient for installation and disassembly, and especially convenient for later maintenance.

[0066] Furthermore, preferably, the edges of the first housing 1 are all rounded, that is, the edges where the cover side plate 102 connects to the cover main plate 101 are rounded, which makes the appearance more aesthetically pleasing.

[0067] Furthermore, preferably, the main board 101 and the side panel 102 are integrated into one piece. Of course, this is not the only option; other options can be selected according to actual needs.

[0068] In this embodiment, preferably, as follows: Figure 3 As shown, the fixed beam 3 and the corresponding first mounting flange 202 are detachably connected by a second fastening member 12, such as a screw or bolt.

[0069] As can be seen from the structure described above, the fixed beam 3 and the corresponding first mounting flange 202 are connected in a detachable manner, which facilitates installation and disassembly, and is especially convenient for later maintenance.

[0070] In this embodiment, preferably, as follows: Figure 5 , Figure 7 and Figure 9As shown, the plug-in type energy storage battery 41 module also includes a main control board 8 and a front panel 9; wherein, the second housing 2 also includes a second mounting flange 203 connected to the main board 201, and along the second preset direction b, the main control board 8 is disposed on the inner side of the second mounting flange 203 near the battery assembly 4, and the front panel 9 is disposed on the outer side of the second mounting flange 203 away from the main board 201, and the front panel 9 and the second mounting flange 203 are detachably connected by a third fastening member 13, such as screws or bolts, and the main control board 8 and the main board 201 are detachably connected by a fourth fastening member 14, such as screws or bolts.

[0071] As can be seen from the structure described above, a second mounting flange 203 is provided on the second housing 2, such as the lower housing. The front panel 9 can abut against the front side of the second mounting flange 203, and the third fastening component 13, such as screws or bolts, can be installed from the front. This makes the operation simpler, more convenient, time-saving, and labor-saving, and is especially convenient for later disassembly and maintenance. The main control board 8 is located between the front panel 9 and the middle plate 6 of the battery assembly 4. The layout is more reasonable and facilitates electrical connection with the battery 41. Moreover, the front panel 9 can also protect the main control board 8. In addition, the main control board 8 and the main board 201 of the second housing 2 are detachably connected by a fourth fastening component 14, such as screws or bolts. This is a detachable connection method, which is convenient for installation and disassembly, and especially convenient for later maintenance.

[0072] Furthermore, preferably, the front panel 9 can be fitted with positive and negative connectors, handles, circuit breakers and output interfaces, etc. After the above structures are installed, the front panel 9 is then fixed to the second housing 2 with bolts and other fastening components. After the internal wiring harness is connected, the first housing 1 is installed. The installation is convenient. If maintenance is required, there is no need to flip the module. The front panel 9 can be removed by unscrewing the screws from the front, top and side, which is convenient for maintenance.

[0073] In this embodiment, preferably, as follows: Figure 7 As shown, the front panel 9 has a mounting beam 10, and the mounting beam 10 is detachably connected to the first housing 1 by a fifth fastening member 15, such as a screw or bolt.

[0074] As can be seen from the structure described above, the mounting beam 10 serves to connect the first housing 1, such as the top cover, while also increasing the strength of the front panel 9 and improving its vibration resistance. Moreover, the mounting beam 10 and the first housing 1 are connected in a detachable manner, which facilitates installation and disassembly, and is especially convenient for later maintenance.

[0075] Furthermore, preferably, the mounting beam 10 is located on the side of the front panel 9 near the main control board 8 and close to the first housing 1. Of course, this is not the only option; other configurations can be selected according to actual needs.

[0076] In this embodiment, preferably, as follows: Figure 9 As shown, the middle plate 6 has a first mounting flange 61, which abuts against the inner side of the main plate 201 near the first housing 1 and is detachably connected by a sixth fastening member 16, which is not exposed on the side of the first housing 1 away from the second housing 2.

[0077] As described above, the first mounting flange 61 is designed at the bottom of the middle plate 6 near the main plate 201. That is, the middle plate 6 and the first mounting flange 202 are set perpendicularly to each other, forming an L-shaped structure. This allows the first mounting flange 202 to sit directly on the upper surface of the main plate 201. Finally, the two are connected together by the sixth fastening member 16. The operation is simple and convenient, and it is a detachable connection method, which is convenient for installation and disassembly, especially for later maintenance. When the plug-in type energy storage battery 41 module is placed horizontally, the main plate 201 of the second housing 2 serves as the bottom surface. The sixth fastening member 16 is not exposed on the side of the first housing 1 away from the second housing 2, which can also effectively prevent scratching during the pushing process, thereby avoiding damage to the plug-in type energy storage battery 41 module. When the plug-in type energy storage battery 41 module is installed vertically, the main plate 201 of the second housing 2 serves as the side surface. Since there are no fastening members such as bolts on this surface, the aesthetics are guaranteed, and pattern silkscreen design can be carried out to enhance the appearance.

[0078] Furthermore, preferably, the sixth fastening member 16 is a combination structure of a press-fit stud and a nut. The press-fit stud can be riveted to the inner side of the main board 201, that is, the side near the battery assembly 4. Correspondingly, the first mounting flange 202 has a through hole, through which the press-fit stud is fitted and locked by the nut. This ensures that the sixth fastening member 16 is not exposed on the side of the first housing 1 away from the second housing 2. Of course, the structure of the sixth fastening member 16 is not limited to the above. It can also be a bolt or screw structure. In this case, a mounting block can be welded to the inner side of the main board 201, that is, the side near the battery assembly 4. A non-penetrating threaded hole is opened on the mounting block, so that the bolt or screw can be installed in this threaded hole, which can also ensure that it will not penetrate the main board 201. The specific choice depends on the actual needs.

[0079] In this embodiment, preferably, as follows: Figure 8 As shown, the back plate 7 has a second mounting flange 71, which abuts against the inner side of the main board 201 near the first housing 1 and is detachably connected by a seventh fastening member 17, which is not exposed on the side of the first housing 1 away from the second housing 2.

[0080] As described above, the back plate 7 is designed with a second mounting flange 71 at the bottom near the main board 201. That is, the back plate 7 and the second mounting flange are set perpendicularly to each other, forming an L-shaped structure. This allows the second mounting flange 203 to sit directly on the upper surface of the main board 201. Finally, the two are connected together by the seventh fastening member 17. The operation is simple and convenient, and it is a detachable connection method, which is convenient for installation and disassembly, especially for later maintenance. When the plug-in type energy storage battery 41 module is placed horizontally, the main board 201 of the second housing 2 serves as the bottom surface. The seventh fastening member 17 is not exposed on the side of the first housing 1 away from the second housing 2, which can also effectively prevent scratching during the pushing process, thereby avoiding damage to the plug-in type energy storage battery 41 module. When the plug-in type energy storage battery 41 module is installed vertically, the main board 201 of the second housing 2 serves as the side surface. Since there are no fastening members such as bolts on this surface, the aesthetics are guaranteed, and pattern silkscreen design can be carried out to enhance the appearance.

[0081] Furthermore, preferably, the seventh fastening member 17 is a combination structure of a press-fit stud and a nut. The press-fit stud can be riveted to the inner side of the main board 201, that is, the side near the battery assembly 4. Correspondingly, the second mounting flange 203 has a through hole, through which it is fitted onto the press-fit stud and locked by the nut. This ensures that the seventh fastening member 17 is not exposed on the side of the first housing 1 away from the second housing 2. Of course, the structure of the seventh fastening member 17 is not limited to the above. It can also be a bolt or screw structure. In this case, a mounting block can be welded to the inner side of the main board 201, that is, the side near the battery assembly 4. A non-penetrating threaded hole is opened on the mounting block, so that the bolt or screw can be installed in this threaded hole, which can also ensure that it will not penetrate the main board 201. The specific choice depends on the actual needs.

[0082] In this embodiment, preferably, as follows: Figure 8 As shown, the end plate 5 has a first support flange 51 extending toward the fixed beam 3, and the first support flange 51 sits on the fixed beam 3 and is connected to the fixed beam 3.

[0083] As can be seen from the structure described above, along the first preset direction a, the first support flange 51 on one side of the end plate 5 can sit directly on the top of the fixing beam 3 as the battery assembly 4 enters the shell. In addition to limiting the position of the battery assembly 4, the fixing beam 3 can also support the end plate 5 of the battery assembly 4, making the overall structure more stable.

[0084] In this embodiment, preferably, as follows: Figure 5 and Figure 8As shown, the fixed beam 3 has a positioning protrusion 31, and the first support flange 51 has a positioning hole 511, with the positioning protrusion 31 inserted into the positioning hole 511. Of course, it is not limited to this; the first support flange 51 can also have a positioning protrusion 31, and the fixed beam 3 can have a positioning hole 511, with the positioning protrusion 31 inserted into the positioning hole 511. The specific choice depends on the actual needs.

[0085] As can be seen from the structure described above, along the first preset direction a, the first support flange 51 on one side of the end plate 5 can sit directly on the top of the fixed beam 3 as the battery assembly 4 enters the shell, and the positioning protrusion 31 is inserted into the positioning hole 511 to play a positioning role, thereby improving assembly accuracy and assembly efficiency.

[0086] In this embodiment, preferably, as follows: Figure 8 As shown, the first support flange 51 is detachably connected to the fixed beam 3 by an eighth fastening member 18, such as a screw or bolt.

[0087] As can be seen from the structure described above, the first support flange 51 and the fixed beam 3 adopt a detachable connection method, which is convenient for installation and disassembly, and especially convenient for later maintenance.

[0088] In this embodiment, preferably, as follows: Figure 10 As shown, the end plate 5 has a binding through hole 55, which is used to bind the wire harness to avoid the wire harness getting tangled, facilitate later maintenance, and improve safety performance.

[0089] In this embodiment, preferably, as follows: Figure 9 and Figure 10 As shown, the end plate 5 has a second support flange 52 extending toward the side opposite to the battery assembly 4, and the second support flange 52 is detachably connected to the middle plate 6 by a ninth fastening member 19, such as a screw or bolt.

[0090] As can be seen from the structure described above, there is no need to thicken the end plate 5 as a whole. It is only necessary to set a flange on the side of the end plate 5, that is, to set a second support flange 52. The second support flange 52 can be detachably connected to the middle plate 6 through the ninth fastening member 19, such as screws or bolts. This satisfies the assembly requirements while saving material costs. Moreover, the second support flange 52 and the middle plate 6 adopt a detachable connection method, which is convenient for installation and disassembly, and especially convenient for later maintenance.

[0091] In this embodiment, preferably, as follows: Figure 7 , Figure 8 , Figure 10 and Figure 11As shown, the end plate 5 has a third support flange 53 extending toward the side opposite to the battery assembly 4, and the third support flange 53 is detachably connected to the back plate 7 by a tenth fastening member 20, such as a screw or bolt.

[0092] As can be seen from the structure described above, there is no need to thicken the end plate 5 as a whole. It is only necessary to set a flange on the side of the end plate 5, that is, to set a third support flange 53. This allows the third support flange 53 to be detachably connected to the back plate 7 through the tenth fastening member 20, such as screws or bolts. This satisfies the assembly requirements while saving material costs. Moreover, the third support flange 53 and the back plate 7 adopt a detachable connection method, which is convenient for installation and disassembly, and especially convenient for later maintenance.

[0093] As can be seen, the end plate 5 of the battery assembly 4 is connected to the first housing 1, the middle plate 6, the bottom plate and the second housing by fastening components such as bolts or bolts. Compared with the traditional steel strip binding structure, the strength is greatly improved, which can effectively limit the expansion of the battery 41 during its life cycle.

[0094] In this embodiment, preferably, as follows: Figure 9 and Figure 10 As shown, the end plate 5 has an L-shaped auxiliary support flange 54 with an opening facing the fixed beam 3, and the vertical structure of the auxiliary support flange 54 is detachably connected to the side of the first housing 1, i.e. the cover side plate 102, by an auxiliary fastening member 21, such as a screw or bolt.

[0095] As can be seen from the structure described above, the end plate 5 is connected to the first shell 1, the second shell 2, the middle plate 6, and the back plate 7, making the overall structure more stable and robust, with a significant increase in strength, improved vibration resistance, and less prone to damage. Moreover, all of them adopt a detachable connection method, which facilitates later maintenance.

[0096] Furthermore, preferably, the end plate 5 is a flat plate structure, which, together with the aforementioned first support flange 51, second support flange 52 and third support flange 53, forms a shell structure. This structure not only meets assembly requirements, but is also lightweight and easy to form.

[0097] In this embodiment, preferably, there is a first buffer foam (not shown in the figure) between the first housing 1 and the battery assembly 4 to provide a buffering effect, and a first insulating layer (not shown in the figure) is attached to the surface of the first housing 1 near the battery assembly 4 to provide insulation and protection.

[0098] In this embodiment, preferably, there is a second buffer foam (not shown in the figure) between the second housing 2 and the battery assembly 4 to provide a buffering effect, and a second insulating layer (not shown in the figure) is attached to the surface of the first housing 1 near the battery assembly 4 to provide insulation and protection.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A plug-in type energy storage battery module, characterized in that, include: The battery assembly comprises a first housing, a second housing, two fixed beams, multiple batteries, two end plates, a middle plate, and a back plate; wherein the two fixed beams are both fixed to the second housing and are spaced apart along a first preset direction; the multiple batteries are stacked sequentially along the first preset direction to form a battery assembly, and the two end plates are respectively disposed at opposite ends of the battery assembly along the first preset direction. The battery assembly and the end plate assembly are mounted between the two fixed beams; the middle plate and the back plate are respectively disposed on opposite sides of the battery assembly along a second preset direction, and the middle plate and the back plate are connected to at least one of the end plate and the second housing; the first housing is connected to the second housing.

2. The plug-in type energy storage battery module according to claim 1, characterized in that, The second housing includes a motherboard and two first mounting flanges connected to the motherboard; wherein, along the first preset direction, the two first mounting flanges are respectively disposed on opposite sides of the motherboard; Both of the fixed beams are located on the main board, and one of the fixed beams abuts against and is connected to one of the first mounting flanges, while the other fixed beam abuts against and is connected to the other of the first mounting flanges.

3. The plug-in type energy storage battery module according to claim 2, characterized in that, The first housing includes a main cover plate and two side cover plates connected to the main cover plate; wherein, along the first preset direction, the two side cover plates are respectively disposed on opposite sides of the main cover plate, and the two side cover plates extend to the outer sides of two corresponding first mounting flanges, and the two side cover plates are detachably connected to the two corresponding first mounting flanges by a first fastening member; and / or The fixed beam and the corresponding first mounting flange are detachably connected by a second fastening component.

4. The plug-in type energy storage battery module according to claim 2, characterized in that, The plug-in type energy storage battery module also includes a main control board and a front panel; wherein, the second housing also includes a second mounting flange connected to the main board, and along the second preset direction, the main control board is disposed on the inner side of the second mounting flange near the battery assembly, the front panel is disposed on the outer side of the second mounting flange away from the main board, and the front panel and the second mounting flange are detachably connected by a third fastening member, and the main control board and the main board are detachably connected by a fourth fastening member.

5. The plug-in type energy storage battery module according to claim 4, characterized in that, The front panel has a mounting beam, and the mounting beam is detachably connected to the first housing via a fifth fastening member.

6. The plug-in type energy storage battery module according to claim 3, characterized in that, The middle plate has a first mounting flange portion, which abuts against the inner side of the main plate near the first housing and is detachably connected by a sixth fastening member, which is not exposed on the side of the first housing away from the second housing.

7. The plug-in type energy storage battery module according to claim 2, characterized in that, The back plate has a second mounting flange portion, which abuts against the inner side of the main board near the first housing and is detachably connected by a seventh fastening member, which is not exposed on the side of the first housing away from the second housing.

8. The plug-in type energy storage battery module according to claim 1, characterized in that, The end plate has a first support flange extending toward the fixed beam, and the first support flange sits on the fixed beam and is connected to the fixed beam.

9. The plug-in type energy storage battery module according to claim 8, characterized in that, One of the fixed beam and the first supporting flange has a positioning protrusion, and the other has a positioning hole, with the positioning protrusion inserted into the positioning hole; and / or The first support flange is detachably connected to the fixed beam via an eighth fastening member.

10. The plug-in type energy storage battery module according to any one of claims 1 to 9, characterized in that, The end plate has binding through holes and is used for binding wire harnesses; and / or The end plate has a second support flange extending toward the side opposite to the battery assembly, and the second support flange is detachably connected to the middle plate via a ninth fastening member; and / or The end plate has a third support flange extending toward the side opposite to the battery assembly, and the third support flange is detachably connected to the back plate via a tenth fastening member; and / or The end plate has an L-shaped auxiliary support flange with an opening facing the fixed beam, and the auxiliary support flange is detachably connected to the side of the first housing via an auxiliary fastening member; and / or Both the first and second housings have rounded corners at their edges; and / or A first cushioning foam is provided between the first housing and the battery assembly, and a first insulating layer is adhered to the surface of the first housing near the battery assembly; and / or There is a second cushioning foam between the second housing and the battery assembly, and a second insulating layer is attached to the surface of the first housing near the battery assembly.

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