Electrode protection structure and battery cell module

Abstract

The utility model discloses an electrode protection structure and a battery cell module, the battery cell module comprises the electrode protection structure, and the electrode protection structure comprises an electrode protection seat and an electrode protection cover. Wherein the electrode protection seat is provided with a first clamping part which is obliquely arranged along the height direction of the electrode protection structure. The electrode protection cover is arranged on the electrode protection base in a covering mode in the height direction of the electrode protection base, a protection space is defined by the electrode protection cover and the electrode protection base, and a second clamping part matched with the first clamping part is arranged on the electrode protection cover. According to the electrode protection structure and the battery cell module, the problem of poor connection stability of the electrode protection cover and the electrode protection seat in the prior art is solved.

Description

Technical Field

[0001] The present application relates to the field of battery protection technology, and more specifically, to an electrode protection structure and a battery cell module. Background Art

[0002] The positive or negative terminal of a battery cell module typically needs to be connected to a copper busbar to transfer the current within the cell to external devices. Electrode protection structures are typically provided on the copper busbar and the positive and negative terminals to protect them. Existing electrode protection structures include an electrode protection cover and an electrode protection base. The electrode protection cover is mounted on the electrode protection base, and the copper busbar passes through the electrode protection cover to connect to the positive and negative terminals embedded in the electrode protection base.

[0003] However, there is a problem of poor connection stability between the existing electrode protection cover and the electrode protection seat. Utility Model Content

[0004] The main purpose of the present application is to provide an electrode protection structure and a battery cell module to at least solve the problem of poor connection stability between the electrode protection cover and the electrode protection seat in the prior art.

[0005] According to one aspect of the present application, there is provided an electrode protection structure, comprising:

[0006] An electrode protection seat, wherein the electrode protection seat is provided with a first clamping portion arranged obliquely along the height direction of the electrode protection structure;

[0007] The electrode protection cover is arranged on the electrode protection seat along the height direction of the electrode protection seat and is enclosed with the electrode protection seat to form a protection space. The electrode protection cover is provided with a second clamping portion adapted to the first clamping portion.

[0008] Furthermore, one of the first clamping portion and the second clamping portion is configured as a bar-shaped clamping slot, and the other is configured as a bar-shaped buckle, and both the bar-shaped clamping slot and the bar-shaped buckle are configured to be inclined along the height direction of the electrode protection structure.

[0009] Furthermore, a guiding inclined surface or a guiding curved surface is provided on a side of the strip-shaped buckle close to the top of the electrode protection structure.

[0010] Furthermore, the electrode protection cover includes a first side wall, a second side wall and a third side wall, wherein the first side wall and the third side wall are respectively connected to opposite sides of the second side wall to form a U-shape with the second side wall;

[0011] There are two strip-shaped slots, one of which is opened on the first side wall and the other is opened on the third side wall. There are two strip-shaped buckles, which are respectively arranged on the side walls of the electrode protection seat corresponding to the first side wall and the third side wall.

[0012] Furthermore, along the first direction, two opposite sides of the first side wall are provided with first bent flanges, and the first bent flanges are bent toward a direction close to the third side wall;

[0013] Along the first direction, two opposite sides of the third side wall are each provided with a second bent flange, and the second bent flange is bent toward a direction close to the first side wall.

[0014] Furthermore, a limiting portion is provided on the surface of the first side wall close to the third side wall and on the surface of the third side wall close to the first side wall, and the limiting portion stops at the top of the electrode protection seat to limit the width of the protection space along the height direction of the electrode protection structure.

[0015] Furthermore, the limiting portion includes a limiting rib, which extends along the height direction of the electrode protection structure. When the electrode protection cover is fixedly connected to the electrode protection seat, the bottom end of the limiting rib stops at the electrode protection seat.

[0016] Furthermore, corresponding sides of the first side wall and the third side wall are provided with notches, and the notches on the first side wall and the third side wall are respectively located at one end of the first side wall and the third side wall away from the second side wall.

[0017] Furthermore, one of the electrode protection cover and the electrode protection seat is provided with a guide rib, and the other is provided with a guide groove adapted to the guide rib, and both the guide rib and the guide groove extend along the height direction of the electrode protection structure.

[0018] On the other hand, the present application also provides a battery cell module, which includes the above-mentioned electrode protection structure.

[0019] Compared with the prior art, the electrode protection seat in the present application is provided with a first clamping portion inclined along the height direction of the electrode protection structure, and the electrode protection cover is provided with a second clamping portion adapted to the first clamping portion; that is, the first clamping portion and the second clamping portion inclined along the height direction can increase the contact surface between the first clamping portion and the second clamping portion in the first direction and the height direction, that is, when the electrode protection cover is subjected to a larger external force in the first direction or the height direction, since the first clamping portion and the second clamping portion are both inclined along the height direction, the electrode protection seat will exert a supporting force on the electrode protection cover at all points in the inclined direction, thereby effectively improving the connection stability between the electrode protection cover and the electrode protection seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0021] Figure 1 This is a schematic structural diagram of the electrode protection structure disclosed in this application;

[0022] Figure 2 This is a schematic structural diagram of the electrode protection seat disclosed in this application;

[0023] Figure 3 This is a schematic structural diagram of the electrode protection cover disclosed in this application from a first viewing angle;

[0024] Figure 4 This is a structural schematic diagram of the electrode protection cover disclosed in this application at a second viewing angle.

[0025] The above drawings include the following reference numerals:

[0026] 10. Electrode protection seat; 11. Wiring portion; 12. Guide groove; 20. Electrode protection cover; 21. First side wall; 22. Second side wall; 23. Third side wall; 24. Limiting portion; 25. Guide rib; 26. Notch; 30. Limited space; 101. First clamping portion; 201. Second clamping portion; 211. First bending flange; 231. Second bending flange; 241. Limiting rib; 1011. Strip buckle; 1012. Guide slope; 2011. Strip slot. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0029] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as being merely exemplary, not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0030] See also Figures 1 to 4 As shown, according to an embodiment of the present application, a battery cell module is provided, which includes an electrode protection structure, and the electrode protection structure includes an electrode protection seat 10 and an electrode protection cover 20.

[0031] The electrode protection seat 10 is provided with a plurality of electrodes along the height direction of the electrode protection structure (such as the attached Figure 1 The electrode protection cover 20 is arranged on the electrode protection base 10 along the height direction of the electrode protection base 10 and encloses the electrode protection base 10 to form a protective space. The electrode protection cover 20 is provided with a second clamping portion 201 adapted to the first clamping portion 101.

[0032] The existing electrode protection cover 20 and the electrode protection seat 10 are generally connected by snapping when assembled, so as to facilitate the rapid assembly of the electrode protection cover 20 and the electrode protection seat 10. The existing electrode protection structure includes a first model in which the electrode protection cover 20 is covered on the electrode protection seat 10 in the height direction. In this case, the first snap-fit portion 101 and the second snap-fit portion 201 are generally extended in the height direction. The existing electrode protection structure also includes a first direction in which the electrode protection cover 20 is perpendicular to the height direction (such as the attached Figure 1In the second type, the first clamping portion 101 and the second clamping portion 201 are provided on the electrode protection seat 10 in the X direction. In this case, the first clamping portion 101 and the second clamping portion 201 extend along a first direction perpendicular to the height direction. In the first type, the contact surface between the first clamping portion 101 and the second clamping portion 201 in the height direction is large, while the contact surface in the first direction is small. When the electrode protection cover 20 is subjected to a large external force in the first direction, it is easy for the electrode protection cover 20 to separate from the electrode protection seat 10. In the second type, the contact surface between the first clamping portion 101 and the second clamping portion 201 in the first direction is large, while the contact surface in the height direction is small. When the electrode protection cover 20 is subjected to a large external force in the height direction, it is easy for the electrode protection cover 20 to separate from the electrode protection seat 10 along the first direction. Therefore, the connection stability between the electrode protection cover 20 and the electrode protection seat 10 is poor.

[0033] Compared with the prior art, in this embodiment, the electrode protection seat 10 is provided with a first clamping portion 101 which is inclined along the height direction of the electrode protection structure, and the electrode protection cover 20 is provided with a second clamping portion 201 which is adapted to the first clamping portion 101; that is, the first clamping portion 101 and the second clamping portion 201 which are inclined along the height direction can increase the contact surface between the first clamping portion 101 and the second clamping portion 201 in the first direction and the height direction, that is, when the electrode protection cover 20 is subjected to a larger external force in the first direction or the height direction, since the first clamping portion 101 and the second clamping portion 201 are both inclined along the height direction, the electrode protection seat 10 will exert a supporting force on the electrode protection cover 20 at all points in the inclined direction, thereby effectively improving the connection stability between the electrode protection cover 20 and the electrode protection seat 10.

[0034] Of course, in some existing electrode protection structures, the electrode protection cover 20 and the electrode protection seat 10 are fastened by screws. Although the screw locking method greatly improves the connection stability between the electrode protection cover 20 and the electrode protection seat 10, it is necessary to open a threaded hole between the electrode protection cover 20 and the electrode protection seat 10, which increases the manufacturing cost of the electrode protection structure; in addition, the screw locking method requires the use of tools such as screwdrivers, which reduces the efficiency of assembling the electrode protection cover 20 and the electrode protection seat 10.

[0035] Furthermore, one of the first clamping portion 101 and the second clamping portion 201 is configured as a strip-shaped clamping slot 2011 , and the other is configured as a strip-shaped buckle 1011 . Both the strip-shaped clamping slot 2011 and the strip-shaped buckle 1011 are configured obliquely along the height direction of the electrode protection structure.

[0036] Specifically, since the electrode protection cover 20 in this embodiment is covered on the electrode protection seat 10 in the height direction, the bar slot 2011 and the bar buckle 1011 are both inclined along the height direction of the electrode protection structure, which means that after the bar slot 2011 and the bar buckle 1011 are inclined along the height direction, not only is the contact surface between the bar slot 2011 and the bar buckle 1011 larger along the height direction, but the contact surface between the two along the first direction is also improved, thereby preventing the electrode protection cover 20 from separating from the electrode protection seat 10 after being subjected to a certain external force. In a specific embodiment, the bar slot 2011 is opened on the electrode protection cover 20, and the bar slot 2011 extends a predetermined length in a direction inclined to the height direction. The bar buckle 1011 is set on the electrode protection seat 10, and the bar buckle 1011 extends a predetermined length in a direction inclined to the height direction. When the electrode protection cover 20 is subjected to an external force in the height direction, the inclined surface of the bar buckle 1011 along the inclined direction will apply a supporting force to the bar slot 2011 in a direction opposite to the height direction; similarly, when the electrode protection cover 20 is subjected to an external force along the first direction, the inclined surface of the bar buckle 1011 along the inclined direction will also apply a supporting force to the bar slot 2011 in a direction opposite to the first direction, thereby improving the connection stability between the electrode protection cover 20 and the electrode protection seat 10.

[0037] In order to improve the assembly efficiency of the bar buckle 1011 and the bar slot 2011, as shown in the attached Figure 2 As shown, a guide slope 1012 or a guide arc surface is provided on the side of the strip buckle 1011 near the top of the electrode protection structure. In other words, when the electrode protection cover 20 is assembled with the electrode protection base 10 in the height direction, when the electrode protection cover 20 contacts the strip buckle 1011, the electrode protection cover 20 can quickly snap the strip buckle 1011 into the strip slot 2011 through the action of the guide slope 1012 or the guide arc surface, thereby avoiding large friction between the electrode protection cover 20 and the strip buckle 1011, which would cause the strip buckle 1011 to be excessively worn and damaged.

[0038] Furthermore, the electrode protection cover 20 includes a first side wall 21, a second side wall 22 and a third side wall 23, and the first side wall 21 and the third side wall 23 are respectively connected to the opposite sides of the second side wall 22 to form a U-shape with the second side wall 22; the bar-shaped slots 2011 include two, one of which is opened on the first side wall 21 and the other is opened on the third side wall 23, and the bar-shaped buckles 1011 include two, and the two bar-shaped buckles 1011 are respectively arranged on the side walls of the electrode protection seat 10 corresponding to the first side wall 21 and the third side wall 23.

[0039] In this embodiment, by respectively providing strip-shaped slots 2011 on the first side wall 21 and the third side wall 23, and cooperating with the two strip-shaped buckles 1011 on the electrode protection base 10, the connection stability between the U-shaped electrode protection cover 20 and the electrode protection base 10 is further improved. It is worth noting that multiple strip-shaped slots 2011 spaced apart can also be provided on the first side wall 21 and the third side wall 23, and multiple strip-shaped buckles 1011 spaced apart can also be provided on the side walls of the electrode protection cover 20 and the first side wall 21 and the third side wall 23, thereby enhancing the connection stability between the electrode protection cover 20 and the electrode protection base 10.

[0040] In addition, along the first direction, the first side wall 21 is provided with a first bending flange 211 on both sides of the relative sides, and the first bending flange 211 is bent toward the direction close to the third side wall 23; along the first direction, the third side wall 23 is provided with a second bending flange 231 on both sides of the relative sides, and the second bending flange 231 is bent toward the direction close to the first side wall 21.

[0041] It can be understood that the first side wall 21 , the first bent flange 211 , the second side wall 22 and the second bent flange 231 are arranged to form an accommodating space, and the electrode protection seat 10 is accommodated in the accommodating space so that the electrode protection cover 20 can protect the electrode protection seat 10 . In addition, the first bent flange 211 and the second bent flange 231 also limit the electrode protection seat 10 during assembly, that is, during assembly, the electrode protection cover 20 needs to first put the first bent flange 211 and the second bent flange 231 on the outer periphery of the electrode protection seat 10, and then apply an external force along the height direction to the electrode protection cover 20 so that the bar buckle 1011 on the electrode protection seat 10 is clamped in the bar slot 2011 of the electrode protection cover 20; that is to say, when an external force along the height direction is applied to the electrode protection cover 20, the electrode protection cover 20 will not be offset from the electrode protection seat 10 in the height direction under the action of the first bent flange 211 and the second bent flange 231, thereby avoiding the situation where the bar buckle 1011 on the electrode protection seat 10 is not clamped in the bar slot 2011 of the electrode protection cover 20.

[0042] In some embodiments, a limiting portion 24 is provided on the surface of the first side wall 21 close to the third side wall 23 and on the surface of the third side wall 23 close to the first side wall 21. The limiting portion 24 stops at the top of the electrode protection seat 10 to limit the width of the protection space along the height direction of the electrode protection structure.

[0043] Specifically, since the electrode protection cover 20 and the electrode protection base 10 are assembled in the height direction, if the width of the confined space 30 along the height direction is too narrow, the predetermined conductive member will not be able to penetrate the confined space 30 and connect with the wiring portion 11 on the electrode protection base 10. Therefore, in this embodiment, a limit portion 24 is provided on the surface of the first side wall 21 near the third side wall 23 and on the surface of the third side wall 23 near the first side wall 21. After the electrode protection cover 20 and the electrode protection base 10 are assembled, the limit portion 24 stops at the top of the electrode protection base 10, thereby preventing the width of the confined space 30 along the height direction from being too narrow.

[0044] As attached Figure 3 To the attached Figure 4 As shown, the limiting portion 24 includes a limiting rib 241, which extends along the height direction of the electrode protection structure. When the electrode protection cover 20 is fixedly connected to the electrode protection seat 10, the bottom end of the limiting rib 241 stops at the electrode protection seat 10.

[0045] In this embodiment, the limiting rib 241 is used to limit the assembly position between the electrode protection cover 20 and the electrode protection base 10, thereby preventing the width of the defined space 30 between the electrode protection base 10 and the electrode protection cover 20 from being too narrow along the height direction. In a specific embodiment, when the electrode protection cover 20 is assembled with the electrode protection base 10, when the bar buckle 1011 on the electrode protection base 10 is engaged with the bar slot 2011 on the electrode protection cover 20, the limiting rib 241 just stops on the electrode protection base 10. The bar buckle 1011 cooperates with the bar slot 2011 and the limiting rib 241 to further prevent the width of the defined space from being too narrow along the height direction.

[0046] Furthermore, corresponding sides of the first side wall 21 and the third side wall 23 are both provided with notches 26 , and the notches 26 on the first side wall 21 and the third side wall 23 are respectively located at one end of the first side wall 21 and the third side wall 23 away from the second side wall 22 .

[0047] That is, the notches 26 on the first side wall 21 and the third side wall 23 are located at the bottoms of the first bent flange 211 and the second bent flange 231 on the same side of the first and third side walls 21 and 23, respectively. The notches 26 are not provided at the bottoms of the first and second bent flanges 211 and 231 on the other side of the first and third side walls 21 and 23. This means that during assembly, if an external force is applied to the electrode protection cover 20 in the height direction, causing it to tilt at a certain angle, after the first and third side walls 21 and 23 on the side without the notches 26 are lowered a certain distance in the height direction, the first and third side walls 21 and 23 on the side with the notches 26 will contact the electrode protection base 10, subjecting the electrode protection cover 20 to a certain correction force, thereby gradually restoring the electrode protection cover 20 to its position facing the electrode protection base 10, ultimately allowing the electrode protection cover 20 to be placed on the electrode protection base 10, thereby preventing the electrode protection cover 20 and the electrode protection base 10 from becoming stuck when subjected to the tilting external force.

[0048] Furthermore, one of the electrode protection cover 20 and the electrode protection seat 10 is provided with a guide rib 25, and the other is provided with a guide groove 12 adapted to the guide rib 25, and both the guide rib 25 and the guide groove 12 extend along the height direction of the electrode protection structure.

[0049] Specifically, when the electrode protection cover 20 and the electrode protection seat 10 are assembled, the guide rib 25 is inserted into the guide groove 12, and then an external force is applied to the electrode protection cover 20 so that the bar buckle 1011 of the electrode protection seat 10 is snapped into the bar slot 2011 of the electrode protection cover 20. The guide rib 25 and the guide groove 12 cooperate so that the electrode protection seat 10 can guide and limit the electrode protection cover 20. In one embodiment, the guide rib 25 is provided on the side of the first side wall 21 of the electrode protection cover 20 close to the third side wall 23, and on the side of the third side wall 23 close to the first side wall 21. The electrode protection seat 10 is provided with guide grooves 12 adapted to the guide rib 25 on the side wall surfaces relative to the first side wall 21 and the third side wall 23, thereby further improving the limiting and guiding effect of the electrode protection seat 10 on the electrode protection cover 20.

[0050] In addition, in some embodiments, the electrode protection cover 20 includes at least two models, wherein at least one model of the electrode protection cover 20 is covered on the electrode protection base 10 along the height direction, and at least one model of the electrode protection cover 20 is covered on the electrode protection base 10 along the first direction. Since the electrode protection base 10 of the present application is provided with a bar buckle 1011 and a bar slot 2011, and the bar buckle 1011 and the bar slot 2011 are both arranged obliquely along the height direction, the electrode protection base 10 can have a good fixing effect on both the electrode protection cover 20 covered on the electrode protection base 10 along the height direction and the electrode protection cover 20 covered on the electrode protection base 10 along the first direction.

[0051] In the present application, the first clamping portion 101 and the second clamping portion 201 are arranged obliquely in the height direction, thereby increasing the contact surface of the first clamping portion 101 and the second clamping portion 201 in the height direction and the first direction, thereby improving the connection stability between the electrode protection cover 20 and the electrode protection seat 10 to a certain extent. In addition, the bottom of the first side wall 21 and the third side wall 23 of the electrode protection cover 20 on the same side are provided with a notch portion 26. The notch portion 26 enables the electrode protection cover 20 to be buckled on the electrode protection seat 10 after being subjected to an external force oblique to the height direction, thereby avoiding the electrode protection cover 20 and the electrode protection seat 10 from getting stuck. On the other hand, the present application also provides a limiting rib 241 on the electrode protection cover 20. The limiting rib 241 limits the electrode protection cover 20, thereby preventing the width of the limited space 30 in the height direction from being too narrow, and the conductive member from being unable to connect to the wiring portion 11. Finally, the present application also provides guide ribs 25 on the electrode protection cover 20 , and guide grooves 12 on the electrode protection seat 10 . The guide ribs 25 cooperate with the guide grooves 12 to guide and limit the electrode protection cover 20 .

[0052] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0053] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0054] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An electrode protection structure, characterized in that: include: An electrode protection seat (10), wherein the electrode protection seat (10) is provided with a first clamping portion (101) arranged obliquely along the height direction of the electrode protection structure; An electrode protection cover (20) is provided on the electrode protection seat (10) along the height direction of the electrode protection seat (10) and encloses the electrode protection seat (10) to form a protective space. The electrode protection cover (20) is provided with a second clamping portion (201) adapted to the first clamping portion (101).

2. The electrode protection structure according to claim 1, characterized in that: One of the first clamping portion (101) and the second clamping portion (201) is configured as a strip-shaped clamping slot (2011), and the other of the two is configured as a strip-shaped buckle (1011), and both the strip-shaped clamping slot (2011) and the strip-shaped buckle (1011) are arranged obliquely along the height direction of the electrode protection structure.

3. The electrode protection structure according to claim 2, characterized in that: A guiding inclined surface (1012) or a guiding arc surface is provided on a side of the strip-shaped buckle (1011) close to the top of the electrode protection structure.

4. The electrode protection structure according to claim 2, characterized in that: The electrode protection cover (20) comprises a first side wall (21), a second side wall (22), and a third side wall (23), wherein the first side wall (21) and the third side wall (23) are respectively connected to opposite sides of the second side wall (22) to form a U-shape with the second side wall (22); The strip-shaped slots (2011) include two, one of which is opened on the first side wall (21), and the other is opened on the third side wall (23); the strip-shaped buckles (1011) include two, and the two strip-shaped buckles (1011) are respectively arranged on the side walls of the electrode protection seat (10) corresponding to the first side wall (21) and the third side wall (23).

5. The electrode protection structure according to claim 4, characterized in that: Along the first direction, the first side wall (21) is provided with first bent flanges (211) on both opposite sides, and the first bent flanges (211) are bent in a direction close to the third side wall (23); Along the first direction, the third side wall (23) is provided with second bent flanges (231) on both opposite sides, and the second bent flanges (231) are bent in a direction close to the first side wall (21).

6. The electrode protection structure according to claim 4, characterized in that: A limiting portion (24) is provided on the surface of the first side wall (21) close to the third side wall (23) and on the surface of the third side wall (23) close to the first side wall (21). The limiting portion (24) stops at the top of the electrode protection seat (10) to limit the width of the protection space along the height direction of the electrode protection structure.

7. The electrode protection structure according to claim 6, characterized in that: The limiting portion (24) comprises a limiting rib (241), the limiting rib (241) extending along the height direction of the electrode protection structure, and when the electrode protection cover (20) is fixedly connected to the electrode protection seat (10), the bottom end of the limiting rib (241) abuts against the electrode protection seat (10).

8. The electrode protection structure according to claim 4, characterized in that: The corresponding side edges of the first side wall (21) and the third side wall (23) are both provided with notch portions (26), and the notch portions (26) on the first side wall (21) and the third side wall (23) are respectively located at one end of the first side wall (21) and the third side wall (23) away from the second side wall (22).

9. The electrode protection structure according to any one of claims 1 to 8, characterized in that: A guide rib (25) is provided on one of the electrode protection cover (20) and the electrode protection seat (10), and a guide groove (12) adapted to the guide rib (25) is provided on the other of the two, and both the guide rib (25) and the guide groove (12) extend along the height direction of the electrode protection structure.

10. A battery cell module, characterized in that: The battery cell module includes the electrode protection structure according to any one of claims 1 to 9.

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