Battery module leading-out end mounting protective cover structure

Abstract

According to the battery module leading-out end mounting protective cover structure, in the structure, a positive and negative pole mounting seat comprises a lower end seat with a first cross sectional area and an upper end seat which is arranged at the top of the lower end seat and has a second cross sectional area, and the second cross sectional area is larger than the first cross sectional area; the at least one buckle hole is arranged on the top surface of the upper end seat, the at least one positioning groove is arranged on the side surface of the upper end seat, and the leading-out end protection cover detachably covers the upper end seat. The leading-out end protection cover comprises a top wall, a first side wall extending downwards from the top wall, a second side wall and a third side wall which extend downwards from the top wall and are respectively adjacent to the first side wall, and at least one buckle structure which extends downwards from the top wall and is opposite to the first side wall; the elastic piece obliquely extends from the bottom of the buckle structure, the buckle structure is connected with the buckle hole in a buckled mode, the elastic piece elastically abuts against the buckle hole, and the positioning rib is arranged on the inner side of the first side wall and connected with the positioning groove in a matched mode. The structure is firm in assembly and avoids the risk of short circuit.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a structure for installing a protective cover at the lead-out end of a battery module. Background Technique

[0002] Currently, there are usually two forms of internal layout in battery packs, namely module and CTP cell stacking; currently, the module layout is still the mainstream in the market; the module first completes the cell stacking, then is welded and fixed by end plates and side plates at both ends, and finally the CCS component is welded. The positive and negative mounting seats and the structure for installing the protective cover at the lead-out end are designed at both ends of the module; the traditional design principle of the structure for installing the protective cover at the lead-out end is to design a buckle structure at the front end of the protective cover, and it is fixed by buckling on the positive and negative mounting seats. The two sides and the rear end of the protective cover are designed to be suspended; this traditional design leads to the most direct problem that the positive and negative electrodes at both ends of the module cannot be fully and effectively protected, resulting in the risk of short circuit caused by accidental contact of the connecting copper bars; there is a risk that the cantilever mounting structure of the protective cover is easily broken when being pressed during assembly; at the same time, the universality of the protective cover is poor, resulting in worse economy.

[0003] The above information disclosed in the background technique is only used to enhance the understanding of the background of the utility model, and thus may include information on the prior art that does not constitute the common knowledge of those skilled in the art. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a structure for installing a protective cover at the lead-out end of a battery module, which selects different positions to install the buckle structure and the installation positioning rib; while ensuring the effective current-carrying area, it solves the risk that the cantilever structure is easily broken during assembly; at the same time, the lead-out end protective cover is designed with hollowing on both side surfaces at both ends to facilitate the side-out of the copper bar, and the front surface is designed with weakening. When the copper bar needs to come out from the front, the weakened area can be damaged; it has better universality and stronger economy; at the same time, it reduces the mold development and lowers the development cost; it can effectively avoid the risk of short circuit caused by accidental contact of the connecting copper bars, and thus makes the manufacturing cost lower.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A structure for installing a protective cover at the lead-out end of a battery module of the utility model includes:

[0007] A positive and negative mounting seat, which includes a lower end seat having a first cross-sectional area and an upper end seat provided at the top of the lower end seat and having a second cross-sectional area, and the second cross-sectional area is larger than the first cross-sectional area;

[0008] At least one buckle hole, which is provided on the top surface of the upper end seat,

[0009] At least one positioning groove, which is arranged on the side surface of the upper end seat,

[0010] A lead-out terminal protection cover, which is detachably covered on the upper end seat. The lead-out terminal protection cover includes a top wall, a first side wall extending downward from the top wall, a second side wall and a third side wall extending downward from the top wall and respectively adjacent to the first side wall, and at least one buckle structure extending downward from the top wall relative to the first side wall;

[0011] At least one elastic piece, which extends obliquely from the bottom of the buckle structure. The buckle structure is buckled to the buckle hole and the elastic piece elastically abuts against the buckle hole,

[0012] At least one positioning rib, which is arranged inside the first side wall and is cooperatively connected with the positioning groove.

[0013] In the structure of the battery module lead-out terminal installation protection cover, a breakable thin-wall area for the positive output of the copper row is arranged on the first side wall.

[0014] In the structure of the battery module lead-out terminal installation protection cover, tear lines that can be broken are arranged around the breakable thin-wall area.

[0015] In the structure of the battery module lead-out terminal installation protection cover, gaps are left between both the second side wall and the third side wall and the upper end seat.

[0016] In the structure of the battery module lead-out terminal installation protection cover, the upper end seat and the lower end seat share a common central axis, and the upper end seat extends out of both sides of the lower end seat in the horizontal direction at both ends.

[0017] In the structure of the battery module lead-out terminal installation protection cover, the lead-out terminal protection cover further includes a fourth side wall extending downward from the top wall relative to the first side wall, and the dimension of the fourth side wall in the vertical direction is smaller than that of the second side wall or the third side wall.

[0018] In the structure of the battery module lead-out terminal installation protection cover, the buckle holes are distributed on the four peripheral edges of the top surface of the upper end seat.

[0019] In the structure of the battery module lead-out terminal installation protection cover, the positioning groove is a dovetail groove structure.

[0020] In the structure of the battery module lead-out terminal installation protection cover, the positioning rib is a wedge-shaped structure.

[0021] In the structure of the battery module lead-out terminal installation protection cover, the battery module lead-out terminal installation protection cover structure is a symmetric structure.

[0022] In one embodiment,

[0023] In the above technical solution, a battery module lead-out terminal installation protection cover structure provided by the present utility model has the following beneficial effects: The battery module lead-out terminal installation protection cover structure selects different positions for the installation of the buckle structure and the installation positioning ribs. While ensuring the effective current-carrying area, it solves the risk of easy breakage during the assembly of the cantilever structure; it takes into account different design requirements such as the side-out connection and the positive-out connection of the module copper busbar, reduces the mold development, and lowers the development cost; it can effectively avoid the risk of short circuit caused by the miscontact of the connecting copper busbar, thereby making the manufacturing cost lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0025] Figure 1 It is an exploded schematic diagram of the battery module lead-out terminal installation protection cover structure of the present utility model.

[0026] Figure 2 It is an axonometric schematic diagram of the battery module lead-out terminal installation protection cover structure of the present utility model.

[0027] Figure 3 It is a front view schematic diagram of the battery module lead-out terminal installation protection cover structure of the present utility model.

[0028] Figure 4 It is a left view schematic diagram of the battery module lead-out terminal installation protection cover structure of the present utility model.

[0029] Figure 5 It is a rear view schematic diagram of the battery module lead-out terminal installation protection cover structure of the present utility model.

[0030] Figure 6 For this Figure 5 Sectional view taken along line A-A.

[0031] In the figure: 1, positive and negative terminal mounting seat; 2, buckle hole; 3, positioning groove; 4, lead-out terminal protection cover; 5, first side wall; 6, second side wall; 7, elastic piece; 8, positioning rib; 9, thin wall area. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0033] Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0034] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0035] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0036] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0037] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a direct connection, or an indirect connection through an intermediate medium, and may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0038] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over", or "on top of" the second feature includes that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", or "underneath" the second feature includes that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0039] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0040] As Figures 1-6 shown, in one embodiment, a battery module lead-out terminal installation protection cover structure of the present utility model includes

[0041] a positive and negative electrode mounting seat 1, which includes a lower seat having a first cross-sectional area and an upper seat provided on the top of the lower seat and having a second cross-sectional area, and the second cross-sectional area is larger than the first cross-sectional area;

[0042] at least one snap hole 2, which is provided on the top surface of the upper seat,

[0043] at least one positioning groove 3, which is provided on the side surface of the upper seat,

[0044] a lead-out terminal protection cover 4, which is detachably covered on the upper seat, and the lead-out terminal protection cover 4 includes a top wall, a first side wall extending downward from the top wall, a second side wall 6 and a third side wall extending downward from the top wall and respectively adjacent to the first side wall, and at least one snap structure relative to the first side wall extending downward from the top wall;

[0045] at least one elastic piece 7, the elastic piece 7 obliquely extends from the bottom of the snap structure, the snap structure is snap-connected to the snap hole 2 and the elastic piece 7 elastically abuts against the snap hole 2,

[0046] At least one positioning rib 8, which is arranged inside the first side wall and is cooperatively connected to the positioning groove 3.

[0047] In a preferred embodiment of the installation protection cover structure for the battery module lead-out terminal, the first side wall is provided with a breakable thin-wall area 9 for the positive copper bar to exit.

[0048] In a preferred embodiment of the installation protection cover structure for the battery module lead-out terminal, tear lines that can be broken are provided around the breakable thin-wall area 9.

[0049] In a preferred embodiment of the installation protection cover structure for the battery module lead-out terminal, gaps are left between the second side wall 6 and the third side wall and the upper seat.

[0050] In a preferred embodiment of the installation protection cover structure for the battery module lead-out terminal, the upper seat and the lower seat share the same central axis, and the upper seat extends outwards from both sides of the lower seat in the transverse direction at both ends.

[0051] In a preferred embodiment of the installation protection cover structure for the battery module lead-out terminal, the lead-out terminal protection cover 4 further includes a fourth side wall relative to the first side wall extending downward from the top wall, and its dimension in the vertical direction is smaller than that of the second side wall 6 or the third side wall.

[0052] In a preferred embodiment of the installation protection cover structure for the battery module lead-out terminal, the buckle holes 2 are distributed on the four peripheral edges of the top surface of the upper seat.

[0053] In a preferred embodiment of the installation protection cover structure for the battery module lead-out terminal, the positioning groove 3 is a dovetail groove structure.

[0054] In a preferred embodiment of the installation protection cover structure for the battery module lead-out terminal, the positioning rib 8 is a wedge-shaped structure.

[0055] In a preferred embodiment of the installation protection cover structure for the battery module lead-out terminal, the installation protection cover structure for the battery module lead-out terminal is a symmetric structure.

[0056] In one embodiment, the positive and negative electrode mounting seat 1 is a T-shaped structure.

[0057] Finally, it should be noted that: the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0058] Only some exemplary embodiments of the present utility model are described by way of illustration. Undoubtedly, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present utility model. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present utility model.

Claims

1. A battery module lead-out terminal installation protection cover structure, characterized in that: These include, A positive and negative electrode mounting seat, comprising a lower end seat with a first cross-sectional area and an upper end seat with a second cross-sectional area provided on the top of the lower end seat, wherein the second cross-sectional area is larger than the first cross-sectional area; At least one snap hole, which is provided on the top surface of the upper end seat, At least one positioning groove is provided on the side surface of the upper end seat, A lead-out terminal protection cover, which is detachably covered on the upper end seat, the lead-out terminal protection cover comprises a top wall, a first side wall extending downward from the top wall, a second side wall and a third side wall extending downward from the top wall and respectively adjacent to the first side wall, and at least one buckle structure extending downward from the top wall and relative to the first side wall; at least one elastic sheet, the elastic sheet obliquely extending from the bottom of the buckle structure, the buckle structure buckled to the buckle hole and the elastic sheet elastically abuts against the buckle hole, At least one positioning rib is disposed on the inner side of the first side wall and is cooperatively connected to the positioning groove.

2. A battery module lead-out terminal installation protection cover structure according to claim 1, characterized in that: The first side wall is provided with a destructible thin-walled area for the copper busbar to exit positively.

3. A battery module lead-out terminal installation protection cover structure according to claim 2, characterized in that: The destructible thin-walled area is surrounded by destructible tear lines.

4. A battery module lead-out terminal installation protection cover structure according to claim 1, characterized in that: There is a gap between the second side wall and the third side wall and the upper end seat.

5. A battery module lead-out terminal installation protection cover structure according to claim 1, characterized in that: The upper end seat and the lower end seat share a central axis, and both ends of the upper end seat in the lateral direction extend out of two sides of the lower end seat respectively.

6. A battery module lead-out terminal installation protection cover structure according to claim 1, characterized in that: The lead-out terminal protection cover further includes a fourth side wall extending downward from the top wall relative to the first side wall, and a size of the fourth side wall in a vertical direction is smaller than the second side wall or the third side wall.

7. A battery module lead-out terminal installation protection cover structure according to claim 1, characterized in that: The buckle holes are distributed on the edges around the top surface of the upper end seat.

8. A battery module lead-out terminal installation protection cover structure according to claim 1, characterized in that: The positioning groove is a dovetail groove structure.

9. A battery module lead-out terminal installation protection cover structure according to claim 7, characterized in that: The positioning rib is a wedge-shaped structure.

10. A battery module lead-out terminal installation protection cover structure according to claim 1, characterized in that: The battery module lead-out terminal installation protection cover structure is a symmetrical structure.

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