Energy storage module easy to maintain

Abstract

The utility model discloses an energy storage module easy to maintain, which comprises a battery unit, a bearing unit, an end frame, a connecting module and a safety module, and a wiring terminal is arranged at the front end of the battery unit along the Y-axis direction; the bearing unit is provided with a connecting part; the end frame is locked and fixed on the connecting part; the control module is fixedly connected with the end frame and is connected with the battery unit; the connecting module is provided with a connecting terminal and an electric connecting piece, the connecting terminal is used for being connected with an external circuit, and the electric connecting piece is connected with the connecting terminal and is configured to be suitable for being fixedly connected with the wiring terminal when the end frame is locked to the connecting part; the electric connecting piece is provided with a first wiring end and a second wiring end; the safety module is suitable for being locked with the end frame, the first wiring end and the second wiring end in the Y-axis direction and located in front of the end frame, the first wiring end and the second wiring end. The safety module and the control module are arranged in the X-axis direction. The insurance module is easy to maintain and does not interfere with the control module during maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, in particular to an energy storage module that is easy to maintain. Background Art

[0002] The energy storage system is generally formed by multiple energy storage modules, which are often placed in a container. In the actual use of the energy storage module, in order to protect the battery, a fuse is often set. However, if the fuse is damaged after a period of use, it is often necessary to take the energy storage module out of the container and then disassemble the entire energy storage module, which is time-consuming and laborious. In the prior art, such as patent CN115020932A, the fuse module is placed between the front end of the battery and the front wall of the shell, and a window is provided on the front wall. The cover plate sealing cover is provided on the window. When the fuse module needs to be maintained, it is not necessary to take the energy storage module out of the container. It is only necessary to remove the cover plate to maintain the fuse module. However, since the control module is also installed on the cover plate, when the cover plate is removed, the control module is inevitably removed. There are a large number of signal lines or electrical connection lines between the control module and the battery. Therefore, when the cover plate is removed to maintain the fuse module, it is very easy to damage the signal line or electrical connection line between the control module and the battery, thereby bringing new problems to the energy storage module. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned defects or problems existing in the background technology and to provide an energy storage module that is easy to maintain, wherein the safety module is easy to maintain and is not likely to interfere with other components.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] Technical solution one and its related embodiments provide an energy storage module that is easy to maintain, including a battery cell, a wiring terminal is provided at the front end along the Y-axis direction; a supporting unit, which supports the battery cell along the Z-axis direction, and a connecting portion is formed between the front end along the Y-axis direction and the front end of the battery cell along the Y-axis direction; an end frame, which is fixed to the connecting portion; a control module, which is fixed to the end frame and connected to the battery cell; a connecting module, which is provided with a connecting terminal and an electrical connector, the connecting terminal is used to connect to an external circuit, the electrical connector is connected to the connecting terminal and is configured to be suitable for being fixed to the wiring terminal when the end frame is locked to the connecting portion; the electrical connector is provided with a first wiring terminal and a second wiring terminal; and a fuse module, which is suitable for being locked with the end frame, the first wiring terminal and the second wiring terminal along the Y-axis direction and suitable for being removed from the front end of the end frame; the fuse module and the control module are arranged along the X-axis direction.

[0006] Based on technical solution one, technical solution two is also provided. In technical solution two and its related embodiments, the end frame is provided with a connecting wall, an abutting wall and an insulating portion, the connecting wall and the abutting wall both extend along the Z-axis direction and are spaced opposite to each other along the Y-axis direction, the connecting wall is located in front of the abutting wall, the insulating portion extends along the Z-axis direction and is locked on the abutting wall, and a first opening is provided on the connecting wall; the control module and the connecting module are both fixedly connected to the connecting wall; the insurance module is locked on the insulating portion and is opposite to the first opening.

[0007] Based on Technical Solution 2, Technical Solution 3 is also provided. In Technical Solution 3 and its related embodiments, the insulating part protrudes backward and is provided with a first groove and a second groove, and the groove wall of the first groove and the groove wall of the second groove both form an internal thread suitable for locking with the electrical connector and the fuse module.

[0008] Based on technical solution three, technical solution four is also provided. In technical solution four and its related embodiments, the fuse module is arranged along the Z-axis direction with a first end and a second end suitable for being locked in the insulating part; the first end and the second end are arranged along the Z-axis direction and are located in front of the first terminal, the second terminal and the insulating part.

[0009] Based on technical solution four, technical solution five is also provided. In technical solution five and its related embodiments, the insulating part is provided with a mounting hole penetrating along the Y-axis direction, and the mounting hole is suitable for embedding the fuse module.

[0010] Based on technical solution five, technical solution six is ​​also provided. In technical solution six and its related embodiments, the insulating part is further provided with a first reinforcement part close to the abutting wall, and a grid structure is formed inside the first reinforcement part.

[0011] Based on any one of technical solutions two to six, there is also provided a technical solution seven. In technical solution seven and its related embodiments, the end frame is also provided with a supporting wall, two first reinforcing walls, a second reinforcing wall and two third reinforcing walls, and the supporting wall is suitable for being locked with the connecting portion and being connected as a whole with the connecting wall and the abutting wall; the two first reinforcing walls are perpendicular to the X-axis direction, and are respectively located on both sides of the connecting wall along the X-axis direction and are connected as a whole with the connecting wall; the second reinforcing wall is perpendicular to the Z-axis direction, and is located at one end of the connecting wall away from the supporting wall and is connected as a whole with the connecting wall; the two third reinforcing walls are perpendicular to the X-axis direction, and are respectively located on both sides of the abutting wall along the X-axis direction and are connected as a whole with the abutting wall and the supporting wall.

[0012] Based on Technical Solution Seven, Technical Solution Eight is also provided. In Technical Solution Eight and its related embodiments, the end frame is also provided with a plurality of second reinforcement portions arranged at intervals along the X-axis direction at the connection between the connecting wall and the supporting wall, and the second reinforcement portions are recessed backward and protrude in a direction away from the supporting wall relative to the supporting wall.

[0013] Based on Technical Solution Eight, Technical Solution Nine is also provided. Technical Solution Nine and its related embodiments further include a cover body and a cover plate, wherein the cover body is suitable for being detachably fixed to the supporting unit to form a accommodating cavity, wherein the accommodating cavity is provided with a front wall extending along the Z-axis direction, wherein the front wall is provided with a window opened along the Y-axis direction and a through hole opened along the Y-axis direction, wherein the cover plate sealing cover is provided on the window; the first opening is opposite to the window; and the connecting terminal is embedded in the end frame and is suitable for extending out of the through hole.

[0014] Based on Technical Solution Nine, Technical Solution Ten is also provided. In Technical Solution Ten and its related embodiments, the cover plate is locked with the front wall and the connecting wall; the rear side of the cover plate is provided with a first reinforcement groove opening toward the side where the control module is located, and a first grid structure is formed in the first reinforcement groove, and the safety module is suitable for abutting against the first grid structure when the cover plate is covered on the window.

[0015] From the above description of the utility model, it can be seen that compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. In technical solution 1, the control module is connected to the battery cell, which means that the control module is signal-connected, electrically connected or signal-electrically connected to the battery cell; since the control module and the fuse module are both fixed to the end frame, the control module and the fuse module can be fixed to the end frame first during actual installation, and then the end frame can be fixed to the connecting part. In this way, the number of components connected to the supporting unit is reduced, and the components can be pre-installed in advance. Therefore, during on-site installation, it is only necessary to lock the end frame and the connecting part, which reduces the installation steps and the difficulty of on-site installation; wherein, the fuse module is suitable for being locked with the end frame, the first terminal and the second terminal along the Y-axis direction and suitable for being disassembled from the front end of the end frame, and the fuse module and the control module are arranged along the X-axis direction. Therefore, when the fuse module needs to be maintained, the fuse module can be disassembled from the front end and the control module does not need to be disassembled during disassembly, so it will not interfere with the control module, and the fuse module is convenient to maintain, and damage to the connecting line between the control module and the battery cell is avoided.

[0017] 2. In the second technical solution, since the insurance module usually has a certain thickness, the insurance module needs to be maintained frequently, and the electrical connection between the insurance module and the electrical connector must be ensured, if the insurance module is not installed properly, it will not only cause inconvenience in wiring, but also inconvenience in maintenance. In this technical solution, the insurance module is locked on the insulating part behind the connecting wall, and the control module and the connecting module are fixed to the connecting wall. When the insurance module is installed, the insurance module can be passed through the first opening and locked with the insulating part and the first and second wiring terminals. When the insurance module needs to be maintained, the insurance module can be removed and taken out forward from the first opening. Therefore, the above arrangement not only ensures the insulating contact between the insurance module and the battery unit, and the electrical connection between the insurance module and the electrical connector, but also ensures that there is enough space between the insulating part and the connecting wall for the insurance module to be installed, and the disassembly and assembly are convenient.

[0018] 3. In technical solution three, the provision of the first slot and the second slot makes it unnecessary to provide nuts behind the insulating part, thus avoiding the inconvenience of installation and maintenance caused by the falling of nuts. Especially when the energy storage module is provided with the cover body in technical solution eight, it means that the insurance module can be maintained without removing the cover body. This advantage is particularly prominent when the energy storage module is located in a container, because it means that the energy storage module as a whole does not need to be taken out of the container, which greatly improves the maintenance efficiency.

[0019] 4. In technical solution 4, the first end and the second end of the fuse module are arranged along the Z-axis direction. Compared with the first end and the second end arranged along the direction perpendicular to the X-axis, after the first end and the second end of the fuse module are locked to the insulating part, the insulating part is not easily damaged, and the first opening reserves a sufficient area in the Z-axis direction for the disassembly and assembly of the fuse module. Since the Z-axis direction is also the height direction of the energy storage module, such a setting is more conducive to reducing the width of the energy storage module, thereby making the structure of the energy storage module more compact.

[0020] 5. In technical solution five, the setting of the mounting holes enables the insulating part to be compatible with insurance modules of different thicknesses (in the Y-axis direction), and has wide applicability.

[0021] 6. In technical solution six, the provision of the first reinforcement portion increases the strength of the insulating portion, thereby ensuring the stability of the fuse module after installation.

[0022] 7. In technical solution seven, the setting of the support wall is easy to lock with the connecting part, and the support wall, connecting wall and abutting wall are connected as a whole to ensure the strength of the end frame. The setting of the first reinforcing wall, the second reinforcing wall and the third reinforcing wall further increases the strength of the end frame, which is beneficial to maintaining the stability of the connecting unit. This advantage is particularly prominent during the transportation of the energy storage module or when it vibrates.

[0023] 8. In technical solution eight, the provision of the second reinforcement portion further increases the strength of the end frame, which is beneficial to maintaining the stability of the connection unit. This advantage is particularly prominent during the transportation of the energy storage module or when it vibrates.

[0024] 9. In technical solution nine, the setting of the cover body and the cover plate improves the protection of the entire energy storage module. During installation, first lock the end frame to the connection part, electrically connect the electrical connector to the wiring terminal, connect the control module to the battery unit, then lock the cover body to the base, and finally install the cover plate. In this way, when the insurance module is damaged, the insurance module can be removed from the window and the first opening by removing the cover plate; wherein, the connecting terminal is embedded in the end frame and extends out of the through hole, which is conducive to connecting the connecting terminal to the external circuit.

[0025] 10. In technical solution 10, the cover plate is locked with the front wall and the connecting wall, and the rear side of the cover plate is provided with a second reinforcement groove with an opening toward the side where the control module is located. A second grid structure is formed in the second reinforcement groove, and the safety module is suitable for abutting against the second grid structure when the cover plate is covered on the window, which not only improves the stability of the cover plate, the front wall and the connecting wall, but also avoids the instability of the safety module. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 This is a schematic diagram of an energy storage module according to an embodiment of the utility model;

[0028] Figure 2 This is a three-dimensional exploded view of the energy storage module of the embodiment of the utility model;

[0029] Figure 3 It is a schematic diagram of a supporting unit and a part of an end frame of an embodiment of the utility model;

[0030] Figure 4 This is a schematic diagram of a hidden cover of an energy storage module according to an embodiment of the utility model;

[0031] Figure 5 It is a schematic diagram of a connecting unit and a cover plate according to an embodiment of the utility model;

[0032] Figure 6 for Figure 5 A front view of

[0033] Figure 7 for Figure 6 Section view in AA direction;

[0034] Figure 8 for Figure 6 Stereoscopic decomposition Figure 1 ;

[0035] Fig. 9 for Figure 6 Stereoscopic decomposition Figure 2 .

[0036] Description of main reference numerals:

[0037] Battery cell 10; battery module 11; battery pack 12; terminal 13; supporting unit 20; bottom bracket 21; connecting portion 211; liquid cooling plate 22; liquid inlet connector 221; liquid outlet connector 222; end bracket 30; connecting wall 31; first groove 311; second groove 312; first opening 313; second opening 314; supporting wall 32; abutting wall 33; insulating portion 34; first groove 341; second groove 342; mounting hole 343; first reinforcing portion 344; first reinforcing wall 35; second reinforcing wall 36; third reinforcing wall 37; first reinforcing portion 344; first reinforcing wall 35; second reinforcing wall 36; third reinforcing wall 37; first reinforcing portion 344; first reinforcing wall 35; second reinforcing wall 36; third reinforcing wall 37; first reinforcing portion 344; first reinforcing wall 35; second reinforcing wall 36; third reinforcing wall 37; first reinforcing wall 37; second ... Second reinforcement part 38; control module 40; BMU unit 41; installation wall 42; third reinforcement part 421; wiring port 01; connection module 50; connection terminal 51; electrical connector 52; first terminal 521; second terminal 522; insurance module 60; first end 61; second end 62; cover body 70; front wall 71; window 72; through hole 73; cover plate 80; first reinforcement groove 81; second reinforcement groove 82; fire unit 91; fire detector 92; exhaust valve 93; fire connector 94; maintenance switch 95; communication interface 96. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are preferred embodiments of the utility model and should not be regarded as excluding other embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0039] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" etc. is to distinguish different objects rather than to describe a specific order.

[0040] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise explicitly defined, directional words, such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the specific protection scope of the utility model.

[0041] In the claims, specification and the above drawings of the utility model, unless otherwise clearly defined, if the term "fixed connection" or "fixed connection" is used, it should be understood in a broad sense, that is, any connection method without a displacement relationship and relative rotation relationship between the two, that is to say, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements.

[0042] In the claims, specification and drawings of the present utility model, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0043] In the claims and the specification except for the embodiments, the terms "X-axis direction", "Y-axis direction" and "Z-axis direction" only mean that the feature with one of the above directions is perpendicular to the feature with another direction, and do not require that they must be implemented according to the "X-axis direction", "Y-axis direction" and "Z-axis direction" described in the embodiments. In the embodiments, the X-axis direction is perpendicular to the Y-axis direction and the Z-axis direction. Among them, the X-axis direction can be divided into left and right, the Y-axis direction can be divided into front and back, and the Z-axis direction can be divided into top and bottom.

[0044] See also Figure 1-9 , Figure 1-9 An energy storage module that is easy to maintain is shown, including a battery unit 10, a supporting unit 20, an end frame 30, a control module 40, a connection module 50, a safety module 60, a cover body 70, a cover plate 80 and a fire protection unit 91.

[0045] See also Figure 2In this embodiment, the battery unit 10 includes two battery modules 11 arranged along the Y-axis direction and electrically connected to each other. The battery module 11 is composed of two battery packs 12 arranged along the X-axis direction. The battery pack 12 is a rectangular parallelepiped structure as a whole. The length direction of the battery pack 12 is the Y-axis direction, the width direction of the battery pack 12 is the X-axis direction, and the height direction of the battery pack 12 is the Z-axis direction. Each battery pack 12 is provided with a positive terminal 13 and a negative terminal 13 at both ends along the Y-axis direction, and the positive terminal 13 and the negative terminal 13 of each battery pack 12 are respectively located on the diagonal line of the top surface of the battery pack 12. Figure 2 In the embodiment, there are four battery packs 12, the positive terminals 13 and negative terminals 13 of the two battery packs 12 on the left are in the same position, and the positive terminals 13 and negative terminals 13 of the two battery packs 12 on the right are in the same position, so the left front battery pack 12 is connected in series with the left rear battery pack 12, the left rear battery pack 12 is connected in series with the right rear battery pack 12, and the right rear battery pack 12 is connected in series with the right front battery pack 12. In this way, the positive terminal 13 of the left front battery pack 12 and the negative terminal 13 of the right front battery pack 12 form the positive terminal 13 and negative terminal 13 of the entire battery unit 10 facing the outside, that is, the front end of the battery unit 10 along the Y-axis direction is provided with two terminals 13. However, it should be understood that in other embodiments, the battery unit 10 may form multiple positive terminals 13 and negative terminals 13 facing the outside.

[0046] The supporting unit 20 supports the battery unit 10 along the Z-axis direction. Figure 3 A connecting portion 211 is formed between the front end of the supporting unit 20 along the Y-axis direction and the front end of the battery unit 10 along the Y-axis direction. The supporting unit 20 includes a base 21 and a liquid cooling plate 22. The front end of the liquid cooling plate 22 is provided with a liquid inlet joint 221 and a liquid outlet joint 222 along the X-axis direction, which extend along the Y-axis direction and penetrate the base 21. The connecting portion 211 is formed on the base 21. Figure 3 In the figure, the connection part 211 has avoided the liquid inlet joint 221 and the liquid outlet joint 222, but it should be understood that the connection part 211, the liquid inlet joint 221 and the liquid outlet joint 222 are not limited to the above-mentioned configuration.

[0047] Figure 3 In the embodiment, the end frame 30 is locked to the connecting portion 211, see also Figure 5 and Fig. 9The end frame 30 is provided with a connecting wall 31, a supporting wall 32, an abutting wall 33, an insulating portion 34, two first reinforcing walls 35, a second reinforcing wall 36 and two third reinforcing walls 37. The connecting wall 31 and the abutting wall 33 are both extended along the Z-axis direction and spaced opposite to each other along the Y-axis direction. The supporting wall 32 is perpendicular to the Z-axis direction and is suitable for avoiding the liquid inlet joint 221 and the liquid outlet joint 222 to be locked with the connecting portion 211 and connected to the connecting wall 31 and the abutting wall 33 as a whole. The connecting wall 31 is located in front of the abutting wall 33. The connecting wall 31 is provided with a first opening 313 and a second opening 314 which are opened along the Y-axis direction along the X-axis direction. Figure 3 In the embodiment, the first opening 313 and the second opening 314 are both rectangular, and the area of ​​the second opening 314 is larger than the area of ​​the first opening 313. Figure 8-9 The connecting wall 31 protrudes forward to form a first groove 311 and protrudes backward to form a second groove 312. The bottom wall of the second groove 312 is provided with the second opening 314. The first groove 311 and the second groove 312 are arranged along the X-axis direction, wherein the first opening 313 is located between the first groove 311 and the second groove 312 along the X-axis direction.

[0048] Figure 3 In the figure, the length of the connecting wall 31 along the X-axis direction is greater than the length of the supporting wall 32 along the X-axis direction and extends relative to both sides of the supporting wall 32 along the X-axis direction. The liquid inlet joint 221 and the liquid outlet joint 222 are located on both sides of the supporting wall 32 along the X-axis direction and directly below the connecting wall 31, that is, the projections of the liquid inlet joint 221 and the liquid outlet joint 222 along the Z-axis direction overlap with the projection of the connecting wall 31 along the Z-axis direction.

[0049] The insulating portion 34 extends along the Z-axis direction and is locked on the abutting wall 33. Figure 5 , Figure 7 and Fig. 9 The insulating portion 34 protrudes backward and is provided with a first groove 341 and a second groove 342, and the groove walls of the first groove 341 and the second groove 342 both form internal threads; the insulating portion 34 is provided with a mounting hole 343 that penetrates along the Y-axis direction, and the mounting hole 343 should be adapted to the size of the fuse module 60. The insulating portion 34 is also provided with a first reinforcement portion 344 near the abutting wall 33, and a grid structure is formed inside the first reinforcement portion 344.

[0050] Fig. 9 In the figure, the two first reinforcing walls 35 are respectively located on both sides of the connecting wall 31 along the X-axis direction and are connected to the connecting wall 31 as a whole; the second reinforcing wall 36 is perpendicular to the Z-axis direction, is located at one end of the connecting wall 31 away from the supporting wall 32 and is connected to the connecting wall 31 as a whole; the two third reinforcing walls 37 are perpendicular to the X-axis direction, are respectively located on both sides of the abutting wall 33 along the X-axis direction and are connected to the abutting wall 33 and the supporting wall 32 as a whole.

[0051] The end frame 30 is also provided with a plurality of second reinforcing portions 38 spaced apart along the X-axis direction at the connection between the connecting wall 31 and the supporting wall 32 . The second reinforcing portions 38 are recessed rearward and protrude in a direction away from the supporting wall 32 relative to the supporting wall 32 .

[0052] In this embodiment, the control module 40 , the connection module 50 and the insurance module 60 are all fixedly connected to the end frame 30 to form a connection unit.

[0053] Specifically, see Figure 5 The control module 40 includes two BMU units 41 respectively suitable for connecting to the battery module 11 and a mounting wall 42 perpendicular to the Y-axis direction. The two BMU units 41 are respectively locked to the front and rear sides of the mounting wall 42 along the Y-axis direction. The mounting wall 42 is suitable for being locked to the connecting wall 31 of the end frame 30 so that the rear BMU unit 41 extends into the second opening 314, wherein the BMU unit 41 located on the front side is suitable for being connected to the corresponding battery module 11 through the connecting wire that passes through the end frame 30. When the mounting wall 42 is locked on the end frame 30, it closes part of the second opening 314 and forms a wiring opening 01 between the end frame 30. The BMU unit 41 located on the front side is suitable for being connected to the corresponding battery module 11 through the connecting wire that passes through the wiring opening 01. The wiring opening 01 and the mounting wall 42 are arranged adjacent to each other along the Z-axis direction, and the connection terminal of the BMU unit 41 faces the wiring opening 01. Figure 5 In the embodiment, the wiring port 01 is located above the BMU unit 41, and the connection terminal of the BMU unit 41 is located at the upper end.

[0054] See also Figure 8 The mounting wall 42 is provided with a third reinforcement part 421 at both ends along the X-axis direction. The third reinforcement part 421 has at least two layers of walls that fit each other. The third reinforcement part 421 is suitable for being locked with the connecting wall 31. In this embodiment, the mounting wall 42 is locked to the periphery of the bottom wall of the second groove 312.

[0055] See also Figure 5 , Figure 8-9The connection module 50 is provided with two connection terminals 51 and an electrical connector 52. The two connection terminals 51 are used to connect to an external circuit, but it should be understood that the number of the connection terminals 51 is not limited to two. The electrical connector 52 connects the two connection terminals 51 and is configured to be suitable for being fixedly connected to the two connection terminals 13 when the end frame 30 is locked in the connection portion 211; the two connection terminals 51 are both embedded in the connection wall 31. In this embodiment, the two connection terminals 51 are both embedded in the bottom wall of the first groove 311. The electrical connector 52 is provided with a first connection terminal 52 1 and a second terminal 522. In this embodiment, the electrical connector 52 is a positive terminal row and a negative terminal row. The two connection terminals 51 are respectively a positive connection terminal 51 and a negative connection terminal 51. The positive terminal row is provided with the above-mentioned first terminal 521 and the second terminal 522. One end of the positive terminal row is locked with the positive connection terminal 51, and the other end forms a free end suitable for locking with the terminal 13 of the battery cell 10. One end of the negative terminal row is locked with the negative connection terminal 51, and the other end forms a free end suitable for locking with the terminal 13 of the battery cell 10. Figure 5 , Figure 8-9 In the embodiment, the free ends of the positive terminal block and the negative terminal block are perpendicular to the Z-axis direction so as to be suitable for being locked with the two terminal blocks 13 of the battery cell 10 and realizing electrical connection.

[0056] The insurance module 60 is suitable for being locked with the end frame 30, the first terminal 521 and the second terminal 522 along the Y-axis direction and suitable for being removed from the front end of the end frame 30; the insurance module 60 and the control module 40 are arranged along the X-axis direction. Figure 5 and Figure 7 The fuse module 60 is locked on the insulating part 34 and opposite to the first opening 313. The fuse module 60 is arranged along the Z-axis direction with a first end 61 and a second end 62 suitable for being locked on the insulating part 34; the first end 61 and the second end 62 are arranged along the Z-axis direction and are located in front of the first wiring terminal 521, the second wiring terminal 522 and the insulating part 34.

[0057] See also Figure 2 and Figure 4 The fire fighting unit 91 is placed in the gap between the two battery modules 11 and connected to the control module 40. Here, the fire fighting unit 91 is mainly connected to the control module 40 by signal.

[0058] In practical applications, see Figure 2 and Figure 4 , also includes a fire detector 92, an exhaust valve 93, a fire connector 94, a maintenance switch 95 and a communication interface 96. The fire detector 92 is located between the control module 40 and the front end of the battery unit 10 and is locked on the connecting part 211. In actual applications, part of the positive terminal block is also located between the fire detector 92 and the front end of the battery unit 10.

[0059] The exhaust valve 93 and the fire-fighting joint 94 are both embedded in the cover plate 80 and are opposite to the first opening 313. The maintenance switch 95 and the communication interface 96 are both embedded in the connection wall 31. In this embodiment, the maintenance switch 95 and the communication interface 96 are both embedded in the bottom wall of the first groove 311. In this embodiment, the maintenance switch 95 is connected in series to the electrical connector 52 and is located between the connection terminal 51 and the insurance module 60, so that the entire energy storage module can be shut down by the maintenance switch 95.

[0060] See also Figure 2 The cover body 70 is suitable for being detachably fixed with the supporting unit 20 and forming a receiving chamber, the receiving chamber is provided with a front wall 71 extending along the Z-axis direction, the front wall 71 is provided with a window 72 opened along the Y-axis direction and a through hole 73 opened along the Y-axis direction, and the cover plate 80 is sealed and covered on the window 72; the second groove 312 and the first opening 313 are opposite to the window 72, so the insurance module 60 is opposite to the window 72, and the control module 40 is opposite to the window 72; the first groove 311 is opposite to the through hole 73, so the two connection terminals 51, the maintenance switch 95 and the communication interface 96 are all suitable for extending out of the through hole 73. In this embodiment, the front wall 71 is formed on the cover body 70, and the cover body 70 is locked with the bottom bracket 21, wherein the cover plate 80 is locked with the front wall 71 of the cover body 70, and the connecting wall 31 is suitable for being fitted with the inner surface of the front wall 71, so the cover plate 80, the front wall 71 and the connecting wall 31 are locked with each other.

[0061] See also Figure 5 The cover plate 80 is provided with a second reinforcement groove 82 which opens backward and is opposite to the second opening 314. A second grid structure is formed in the second reinforcement groove 82. The BMU unit 41 located at the front side is suitable for abutting against the second grid structure when the cover plate 80 is sealed and covered on the window 72. See also Figure 7 A first reinforcement groove 81 opening toward the control module 40 is provided on the rear side of the cover plate 80 , and a first grid structure is formed in the first reinforcement groove 81 . The insurance module 60 is adapted to abut against the first grid structure when the cover plate 80 is covered on the window 72 .

[0062] The energy storage module installation process of this embodiment is as follows:

[0063] First, pre-assemble the connection unit, embed the maintenance switch 95, the two connection terminals 51 and the communication interface 96 in the bottom wall of the first groove 311 in advance, connect the electrical connector 52 to the two connection terminals 51, and also connect to the maintenance switch 95, the first end 61 and the second end 62 of the insurance module 60 are respectively locked in the first groove 341 and the second groove 342 of the insulating part 34 and connected to the first terminal 521 and the second terminal 522 of the electrical connector 52, at this time, the insurance module 60 is located in front of the first terminal 521, the second terminal 522 and the insulating part 34, the control module 40 is locked to the periphery of the bottom wall of the second groove 312 through the mounting wall 42, the rear BMU unit 41 extends into the second opening 314, and the front BMU unit 41 and the mounting wall 42 are located in front of the connection wall 31;

[0064] First, the battery unit 10 is fixed to the supporting unit 20, the fire fighting unit 91 is fixed to the gap between the two battery modules 11, and the supporting wall 32 of the pre-assembled connecting unit is locked on the connecting portion 211 between the liquid inlet connector 221 and the liquid outlet connector 222, the liquid inlet connector 221 and the liquid outlet connector 222 are located on both sides of the supporting wall 32 along the X-axis direction and below the connecting wall 31, the electrical connector 52 is fixed to the connecting terminal 13 of the battery unit 10 to achieve electrical connection, and the control module 40 is connected to the battery unit 10 and the fire fighting unit 91, where the connection is mainly a signal connection, wherein the connecting line of the BMU unit 41 located on the front side passes through the wiring port 01 to connect with the battery unit 10;

[0065] Then, the cover body 70 is locked with the base 21, and the maintenance switch 95, the two connecting terminals 51 and the communication interface 96 extend out of the through hole 73. The parts that may interfere with the cover body 70 can be installed after the cover body 70 is installed. Finally, the cover plate 80 is installed. The cover plate 80 is locked with the front wall 71 and the connecting wall 31 of the cover body 70 at the same time, and the installation is completed. The front end of the control module 40 abuts against the second grid structure of the cover plate 80, and the insurance module 60 abuts against the first grid structure of the cover plate 80.

[0066] When the insurance module 60 needs to be maintained, the cover plate 80 is first removed, and then the first end 61 and the second end 62 of the insurance module 60 are removed to take the insurance module 60 out of the first opening 313 and the window 72. After the insurance module 60 is maintained or replaced with a new insurance module 60, the insurance module 60 is placed into the cover body 70 through the window 72 and the first opening 313 and then locked with the insulating part 34, so that the first terminal 521 and the second terminal 522 can be connected.

[0067] When the control module 40 is damaged, the cover plate 80 is removed first, and then the connection line of the BMU unit 41 is removed. The control module 40 can be removed by removing the installation wall 42.

[0068] It can be seen that the technical solution of this embodiment reduces the difficulty of on-site installation and facilitates maintenance by forming multiple modular units in advance.

[0069] In this embodiment, since the control module 40, the connection module 50 and the insurance module 60 are all fixedly connected to the end frame 30, the connection unit can be assembled first during actual installation, and the end frame 30 of the connection unit is fixedly connected to the connection portion 211, wherein the end frame 30 avoids the liquid inlet joint 221 and the liquid outlet joint 222 and is locked to the connection portion 211, and the control module 40, the connection module 50 and the insurance module 60 on the end frame 30 also avoid the liquid inlet joint 221 and the liquid outlet joint 222. In this way, it is achieved that the connection unit and the liquid inlet joint 221 and the liquid outlet joint 222 do not interfere with each other, and the connection portion 211 is achieved. The corresponding space is fully utilized, and more importantly, the number of components connected to the supporting unit 20 is reduced. The connecting unit as a whole can be pre-installed in advance. Therefore, during on-site installation, it is only necessary to lock the end frame 30 and the connecting part 211, fix the electrical connector 52 to the terminal 13 of the battery unit 10 to achieve electrical connection, and connect the control module 40 to the battery unit 10. Compared with the on-site installation, which involves installing the insurance module 60 on the supporting unit 20 and then connecting it to the connecting module 50, then installing the connecting module 50, and then installing the control module 40, the installation steps are reduced and the difficulty of on-site installation is reduced.

[0070] The liquid inlet connector 221 and the liquid outlet connector 222 both extend along the Y-axis direction and penetrate the front end of the base 21; the end frame 30 and the liquid inlet connector 221 and the liquid outlet connector 222 are staggered from each other along the X-axis direction, so that the liquid inlet connector 221 and the liquid outlet connector 222 occupy the smallest area at the connection part 211, which is conducive to increasing the area occupied by the end frame 30 at the connection part 211 and improving the connection stability between the end frame 30 and the connection part 211. The provision of the cover body 70 and the cover plate 80 improves the protection of the entire energy storage module.

[0071] The arrangement of the end frame 30 can ensure its structural stability. Specifically, the arrangement of the first groove 311 and the second groove 312 makes the connection wall 31 have a certain undulation along the Y-axis direction, thereby increasing the strength of the connection wall 31 and improving the stability of the connection unit; in addition, the second groove 312 can also pre-position the control module 40 when the control module 40 is installed, making the installation more convenient. The arrangement of the support wall 32 is easy to lock with the connection part 211, and the support wall 32, the connection wall 31 and the abutment wall 33 are connected as a whole, ensuring the strength of the end frame 30; the arrangement of the first reinforcement part 344 of the insulating part 34 increases the strength of the insulating part 34, thereby ensuring the stability of the insurance module 60 after installation. The arrangement of the first reinforcement wall 35, the second reinforcement wall 36, the third reinforcement wall 37 and the second reinforcement part 38 increases the strength of the end frame 30, which is conducive to maintaining the stability of the connection unit, especially when the control module 40 and the connection module 50 are both fixed to the connection wall 31. This advantage is particularly prominent during the transportation process or vibration of the energy storage module.

[0072] Among them, the length of the connecting wall 31 along the X-axis direction is greater than the length of the supporting wall 32 along the X-axis direction, and the two ends of the connecting wall 31 protrude relative to the supporting wall 32. The liquid inlet connector 221 and the liquid outlet connector 222 are respectively located on both sides of the supporting wall 32 along the X-axis direction, and the projection along the Z-axis direction overlaps with the connecting wall 31, which is beneficial to reducing the width of the supporting unit 20 in the X-axis direction, thereby making the volume of the entire energy storage module more compact.

[0073] When the insurance module 60 needs to be maintained, the insurance module 60 can be disassembled from the front end without interfering with the control module 40 during disassembly. The insurance module 60 is easy to maintain and avoids damage to the connection line between the control module 40 and the battery unit 10. Since the insurance module 60 usually has a certain thickness, the insurance module 60 needs to be maintained frequently, and the electrical connection between the insurance module 60 and the electrical connector 52 needs to be ensured. Therefore, if the insurance module 60 is not installed properly, it will not only cause inconvenience in wiring, but also make maintenance inconvenient. The arrangement of this embodiment not only ensures the insulation contact between the insurance module 60 and the battery unit 10, and the electrical connection between the insurance module 60 and the electrical connector 52, but also ensures that there is enough space between the insulating portion 34 and the connecting wall 31 for the insurance module 60 to be installed, and the disassembly is convenient.

[0074] The first end 61 and the second end 62 of the insurance module 60 are arranged along the Z-axis direction. Compared with the first end 61 and the second end 62 arranged along the direction perpendicular to the X-axis, after the first end 61 and the second end 62 of the insurance module 60 are locked to the insulating part 34, the insulating part 34 is not easy to be damaged, and the first opening 313 reserves enough area in the Z-axis direction for the disassembly and assembly of the insurance module 60. Since the Z-axis direction is also the height direction of the energy storage module, such a setting is more conducive to reducing the width of the energy storage module, thereby making the structure of the energy storage module more compact. The setting of the first groove 341 and the second groove 342 makes it unnecessary to set a nut behind the insulating part 34, avoiding the inconvenience of installation and maintenance caused by the falling of the nut, especially when the energy storage module is provided with a cover body 70, it means that the insurance module 60 can be maintained without removing the cover body 70. This advantage is particularly prominent when the energy storage module is located in a container, because it means that the energy storage module as a whole does not need to be taken out of the container, which greatly improves the maintenance efficiency. The installation hole 343 enables the insulating portion 34 to be compatible with fuse modules of different thicknesses (in the Y-axis direction), and has wide applicability.

[0075] Since two battery modules 11 are provided, two corresponding BMU units 41 are also required. In order to facilitate maintenance of the control module 40, the control module 40 still needs to be placed at the front end of the energy storage module. However, the space at the front end of the energy storage module is limited, and the installation of the control module 40 is somewhat difficult. In this embodiment, the two BMU units 41 are locked to the end frame 30 through the mounting wall 42, so the maintenance of the control module 40 is convenient. Among them, the rear BMU unit 41 extends into the second opening 314, and the BMU unit 41 located on the front side is suitable for connecting with the corresponding battery module 11 through the connecting line running through the end frame 30, which is not only convenient for maintenance, but also simple in routing and convenient for wiring. Therefore, this application can make the energy storage module develop in the direction of high energy density.

[0076] When the mounting wall 42 is locked on the end frame 30, it closes part of the second opening 314 and forms a wiring opening 01 with the end frame 30. The BMU unit 41 located on the front side is suitable for connecting with the corresponding battery module 11 through the connecting wire passing through the wiring opening 01. Compared with opening another wiring opening 01 on the end frame 30, the processing is more convenient and the installation of the control module 40 is convenient. The wiring opening 01 and the mounting wall 42 are arranged adjacent to each other along the Z-axis direction. The wiring port of the BMU unit 41 faces the wiring opening 01, which shortens the wiring distance between the BMU unit 41 located on the front side and the battery unit 10, facilitates wiring and wiring, and is more neat and orderly. The connecting wall 31 and the front wall 71 are attached to each other and fixedly connected. The BMU unit 41 located on the front side is suitable for extending out of the window 72, making the space of the energy storage module along the Y-axis more compact, and avoiding the shaking of the end frame 30, improving the stability of the end frame 30 and the control module 40 on the end frame 30. The provision of the third reinforcing portion 421 of the mounting wall 42 increases the strength of the mounting wall 42 , thereby ensuring the stability of the control module 40 and the stability of the connection between the control module 40 and the end frame 30 .

[0077] The cover plate 80 is locked with the front wall 71 and the connecting wall 31, thereby improving the stability of the cover plate 80, the front wall 71 and the connecting wall 31. The first reinforcement groove 81 and the second reinforcement groove 82 are provided to further improve the strength of the cover plate 80 and avoid the instability of the control module 40 and the insurance module 60.

[0078] The description of the above specification and embodiments is used to explain the protection scope of the utility model, but does not constitute a limitation on the protection scope of the utility model. Through the enlightenment of the utility model or the above embodiments, ordinary technicians in this field can obtain modifications, equivalent replacements or other improvements to the embodiments of the utility model or part of the technical features thereof through logical analysis, reasoning or limited experiments, which should be included in the protection scope of the utility model.

Claims

1. An energy storage module that is easy to maintain, characterized in that: include A battery unit (10) having a connection terminal (13) disposed at its front end along the Y-axis direction; A supporting unit (20) supports the battery unit (10) along the Z-axis direction, and a connecting portion (211) is formed between the front end of the supporting unit (20) along the Y-axis direction and the front end of the battery unit (10) along the Y-axis direction; An end frame (30) fixedly connected to the connecting portion (211); A control module (40) is fixedly connected to the end frame (30) and is connected to the battery unit (10); A connection module (50) is provided with a connection terminal (51) and an electrical connection member (52), wherein the connection terminal (51) is used to connect to an external circuit, and the electrical connection member (52) is connected to the connection terminal (51) and is configured to be suitable for being fixedly connected to the connection terminal (13) when the end frame (30) is locked to the connection portion (211); the electrical connection member (52) is provided with a first connection terminal (521) and a second connection terminal (522); and The insurance module (60) is suitable for being locked with the end frame (30), the first terminal (521) and the second terminal (522) along the Y-axis direction and suitable for being removed from the front end of the end frame (30); the insurance module (60) and the control module (40) are arranged along the X-axis direction.

2. An easily maintainable energy storage module as claimed in claim 1, characterized in that: The end frame (30) is provided with a connecting wall (31), an abutting wall (33) and an insulating portion (34); the connecting wall (31) and the abutting wall (33) both extend along the Z-axis direction and are spaced opposite to each other along the Y-axis direction; the connecting wall (31) is located in front of the abutting wall (33); the insulating portion (34) extends along the Z-axis direction and is locked on the abutting wall (33); a first opening (313) is provided on the connecting wall (31); the control module (40) and the connecting module (50) are both fixedly connected to the connecting wall (31); the insurance module (60) is locked on the insulating portion (34) and is opposite to the first opening (313).

3. An easily maintainable energy storage module as claimed in claim 2, characterized in that: The insulating portion (34) protrudes backward and is provided with a first groove (341) and a second groove (342) opening forward, and the groove wall of the first groove (341) and the groove wall of the second groove (342) both form internal threads suitable for locking with the electrical connector (52) and the fuse module (60).

4. An easily maintainable energy storage module as claimed in claim 3, characterized in that: The fuse module (60) is provided with a first end (61) and a second end (62) along the Z-axis direction and suitable for being locked to the insulating portion (34); the first end (61) and the second end (62) are arranged along the Z-axis direction and are located in front of the first wiring terminal (521), the second wiring terminal (522) and the insulating portion (34).

5. An easily maintainable energy storage module as claimed in claim 4, characterized in that: The insulating portion (34) is provided with a mounting hole (343) penetrating along the Y-axis direction, and the mounting hole (343) is suitable for embedding the fuse module (60).

6. An easily maintainable energy storage module as claimed in claim 5, characterized in that: The insulating portion (34) is also provided with a first reinforcement portion (344) close to the abutting wall (33), and a grid structure is formed inside the first reinforcement portion (344).

7. An easily maintainable energy storage module according to any one of claims 2 to 6, characterized in that: The end frame (30) is also provided with a supporting wall (32), two first reinforcing walls (35), a second reinforcing wall (36) and two third reinforcing walls (37); the supporting wall (32) is suitable for being locked with the connecting portion (211) and being connected as a whole with the connecting wall (31) and the abutting wall (33); the two first reinforcing walls (35) are perpendicular to the X-axis direction, and are respectively located on both sides of the connecting wall (31) along the X-axis direction and are connected as a whole with the connecting wall (31); the second reinforcing wall (36) is perpendicular to the Z-axis direction, and is located at one end of the connecting wall (31) away from the supporting wall (32) and is connected as a whole with the connecting wall (31); the two third reinforcing walls (37) are perpendicular to the X-axis direction, and are respectively located on both sides of the abutting wall (33) along the X-axis direction and are connected as a whole with the abutting wall (33) and the supporting wall (32).

8. An easily maintainable energy storage module as claimed in claim 7, characterized in that: The end frame (30) is also provided with a plurality of second reinforcing portions (38) arranged at intervals along the X-axis direction at the connection between the connecting wall (31) and the supporting wall (32); the second reinforcing portions (38) are recessed backwards and protrude in a direction away from the supporting wall (32) relative to the supporting wall (32).

9. An easily maintainable energy storage module as claimed in claim 2, characterized in that: The invention also comprises a cover body (70) and a cover plate (80), wherein the cover body (70) is suitable for being detachably fixed to the supporting unit (20) and forming a receiving cavity, wherein the receiving cavity is provided with a front wall (71) extending along the Z-axis direction, wherein the front wall (71) is provided with a window (72) opened along the Y-axis direction and a through hole (73) opened along the Y-axis direction, and the cover plate (80) is sealingly covered on the window (72); the first opening (313) is opposite to the window (72); and the connecting terminal (51) is embedded in the connecting wall (31) and is suitable for extending out of the through hole (73).

10. An easily maintainable energy storage module as claimed in claim 9, characterized in that: The cover plate (80) is locked with the front wall (71) and the connecting wall (31); a first reinforcement groove (81) with an opening toward the side where the control module (40) is located is provided on the rear side of the cover plate (80); a first grid structure is formed in the first reinforcement groove (81); and the safety module (60) is suitable for abutting against the first grid structure when the cover plate (80) is covered on the window (72).

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