Injection molding integrated battery cover plate assembly

Abstract

The utility model discloses an injection molding integrated battery cover plate assembly, and belongs to the technical field of batteries. According to the injection molding integrated type battery cover plate assembly, the first plastic part can enable the cover plate to be insulated from the battery core in the battery shell, the second plastic part can enable the connecting piece to be insulated from the cover plate, and meanwhile, the shaping structure can enable the tabs to be folded, equivalently, the tabs are shaped and positioned, so that the shapes of the tabs can be improved, and the service life of the tabs is prolonged. Short circuit caused by contact between the tabs and the battery shell is avoided, the space occupied by the tabs is reduced, and the utilization rate of the internal space of the battery shell is improved; the plastic connecting part integrally formed with the second plastic part is manufactured through injection molding, the other end of the plastic connecting part is connected with the connecting piece, then the connecting piece and the second plastic part are fixed and integrated, assembly is facilitated, stability is better, and the short circuit problem is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to an injection-molded integrated battery cover assembly. Background Art

[0002] To ensure insulation between the battery case and cover, plastic pads are typically placed between the cover and the connector, as well as between the cover and the battery cell. However, in existing cover assemblies, the plastic pads are sheet-like and fail to secure the connector, making it susceptible to displacement and short circuits. Furthermore, the cover assembly fails to secure the tabs, resulting in poor tab shape. This not only occupies significant space and hinders assembly, but also easily contacts the battery case, causing short circuits. Utility Model Content

[0003] The purpose of the utility model is to provide an injection-molded integrated battery cover assembly, which can not only avoid the short circuit problem, but also improve the internal space utilization of the battery shell and the battery assembly efficiency.

[0004] To achieve the above objectives, the following technical solutions are provided:

[0005] Injection molded integrated battery cover assembly, including:

[0006] A cover plate, used to cover and seal an opening at one end of the battery housing;

[0007] Connecting pieces, the connecting pieces are used to electrically connect to the battery poles and tabs respectively;

[0008] A first plastic part, the first plastic part is provided on a side of the cover plate located inside the battery housing, the first plastic part is provided with a shaping structure, and the shaping structure is used to retract the tab;

[0009] The second plastic part is sandwiched between the connecting piece and the cover plate. The second plastic part is provided with at least one plastic connecting portion integrally formed therewith, and the other end of the plastic connecting portion is connected to the connecting piece.

[0010] As an optional solution for the injection-molded integrated battery cover assembly, the connecting piece is provided with a connecting channel corresponding to the plastic connecting portion, one end of the plastic connecting portion is provided with a plastic limiting structure, the plastic limiting structure abuts against the side of the connecting piece facing away from the second plastic part, and the other end of the plastic connecting portion passes through the connecting channel and is integrally formed with the second plastic part; or,

[0011] The connecting piece is provided with an injection cavity and an injection channel connected to the injection cavity, the inner diameter of the injection channel is smaller than the inner diameter of the injection cavity, one end of the plastic connecting part is provided with a plastic limiting structure, the plastic limiting structure is filled in the injection cavity, and the other end of the plastic connecting part passes through the injection channel and is integrally formed with the second plastic part.

[0012] As an optional solution for the injection-molded integrated battery cover assembly, the plastic limiting structure is rectangular.

[0013] As an optional solution for the injection-molded integrated battery cover assembly, the first plastic part and the second plastic part are respectively located on both sides of the cover along the thickness direction thereof;

[0014] The cover plate is provided with at least one cover through hole, the first plastic part is provided with a first through hole arranged in a one-to-one correspondence with the cover through hole, the second plastic part is provided with a second through hole arranged in a one-to-one correspondence with the cover through hole, and the tab can pass through the first through hole, the cover through hole, and the second through hole to be electrically connected to the connecting piece.

[0015] As an optional solution for the injection-molded integrated battery cover assembly, the injection-molded integrated battery cover assembly also includes a hole plastic part, which is arranged in the cover through hole and can be sleeved on the outside of the tab, and the two ends of the hole plastic part are respectively connected to the first plastic part and the second plastic part.

[0016] As an optional solution for the injection-molded integrated battery cover assembly, the first plastic part, the second plastic part and the hole plastic part are integrally formed; or,

[0017] The first plastic part, the second plastic part and the hole plastic part are separately provided and fixedly connected.

[0018] As an optional solution for the injection-molded integrated battery cover assembly, the second plastic part is provided with a fixing flange, and the fixing flange abuts against the cover along the thickness direction of the cover;

[0019] The width d of the fixing flange is 1 mm to 10 mm.

[0020] As an optional solution for the injection-molded integrated battery cover assembly, the cover is provided with a first mounting groove, and the second plastic part is provided in the first mounting groove;

[0021] The second plastic part is provided with a second mounting groove, and the connecting piece is arranged in the second mounting groove;

[0022] The thickness of the cover plate is H; along the thickness direction of the cover plate, the distance between the bottom wall of the second mounting groove and the surface of the cover plate provided with the first mounting groove is h, and h is 0-0.5H.

[0023] As an optional solution for the injection-molded integrated battery cover assembly, the shaping structure includes an inclined surface, which is provided on the side of the first plastic part facing the battery cell, and the inclined surface can guide the tab into the first through hole.

[0024] As an optional solution for the injection-molded integrated battery cover assembly, the cover is provided with a liquid injection port; and / or,

[0025] The cover plate is provided with an explosion-proof valve.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The utility model discloses an injection-molded integrated battery cover assembly. The first plastic part can insulate the cover from the battery cell in the battery shell, and the second plastic part can insulate the connecting piece from the cover. At the same time, the shaping structure can make the pole ear retract, which is equivalent to shaping and positioning the pole ear. It can not only improve the shape of the pole ear and avoid the short circuit caused by the contact between the pole ear and the battery shell, but also help to reduce the space occupied by the pole ear and improve the internal space utilization of the battery shell. The plastic connecting part is formed as a whole with the second plastic part by injection molding, and the other end of the plastic connecting part is connected to the connecting piece, and then the connecting piece is fixed and integrated with the second plastic part, which is not only convenient for assembly, but also has better stability and will not cause short circuit problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a first structural diagram of the injection-molded integrated battery cover assembly in an embodiment of the present utility model;

[0029] Figure 2 This is a second structural diagram of the injection-molded integrated battery cover assembly in an embodiment of the present utility model;

[0030] Figure 3 This is a third structural schematic diagram of the injection-molded integrated battery cover assembly in an embodiment of the present utility model;

[0031] Figure 4 for Figure 3 The cross-sectional view of the AA surface;

[0032] Figure 5 for Figure 3 Cross-sectional view of the BB surface;

[0033] Figure 6 This is a first exploded schematic diagram of the injection-molded integrated battery cover assembly in an embodiment of the present invention;

[0034] Figure 7 This is a second exploded schematic diagram of the injection-molded integrated battery cover assembly in an embodiment of the present invention.

[0035] Reference numerals:

[0036] 1. Cover plate; 11. Cover through hole; 12. First mounting groove; 13. Liquid filling port; 2. Connecting piece; 21. Connecting channel; 31. First plastic part; 311. Shaping structure; 312. First through hole; 32. Second plastic part; 321. Plastic connecting part; 3211. Plastic limiting structure; 322. Second through hole; 323. Fixing flange; 324. Second mounting groove; 33. Hole plastic part; 4. Explosion-proof valve; a. Ear through hole; a1. Positive through hole; a2. Negative through hole. DETAILED DESCRIPTION

[0037] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0039] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0040] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0041] It should also be noted that, in the description of this utility model, unless otherwise specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0042] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0043] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0044] like Figure 1-7 As shown, this embodiment provides an injection-molded integrated battery cover assembly, including a cover 1, a connecting piece 2, a first plastic part 31 and a second plastic part 32. The cover 1 is used to cover the opening at one end of the battery shell and close the opening; the connecting piece 2 is used to electrically connect to the battery pole and the tab respectively; the first plastic part 31 is provided on the side of the cover 1 located in the battery shell, and the first plastic part 31 is provided with a shaping structure 311, and the shaping structure 311 is used to retract the tab; the second plastic part 32 is clamped between the connecting piece 2 and the cover 1, and the second plastic part 32 is provided with at least one plastic connecting part 321 integrally formed therewith, and the other end of the plastic connecting part 321 is connected to the connecting piece 2.

[0045] In the injection-molded integrated battery cover assembly of this embodiment, the first plastic part 31 can insulate the cover 1 from the battery cell in the battery shell, and the second plastic part 32 can insulate the connecting piece 2 from the cover 1. At the same time, the shaping structure 311 can make the pole ear retract, which is equivalent to shaping and positioning the pole ear. It can not only improve the shape of the pole ear and avoid the short circuit caused by the contact between the pole ear and the battery shell, but also help to reduce the space occupied by the pole ear and improve the utilization rate of the internal space of the battery shell.

[0046] It should be noted that, in this embodiment, the plastic connecting portion 321 and the second plastic part 32 are integrally formed by injection molding. For the sake of convenience of description, the end where the plastic connecting portion 321 is connected to the second plastic part 32 is recorded as the first end, and the end where the plastic connecting portion 321 is connected to the connecting piece 2 is recorded as the second end.

[0047] During assembly, a plastic connecting portion 321 is formed integrally with the second plastic part 32 by injection molding, and the other end of the plastic connecting portion 321 is connected to the connecting piece 2, thereby fixing the connecting piece 2 and the second plastic part 32 for integration. This not only facilitates assembly but also provides better stability without causing short circuit problems.

[0048] In this embodiment, the connecting piece 2 is provided with a connecting channel 21 corresponding to the plastic connecting portion 321, and one end of the plastic connecting portion 321 is provided with a plastic limiting structure 3211. The plastic limiting structure 3211 abuts against the side of the connecting piece 2 facing away from the second plastic part 32. The other end of the plastic connecting portion 321 passes through the connecting channel 21 and is integrally formed with the second plastic part 32. Then, the plastic limiting structure 3211 applies force to the side of the connecting piece 2 facing away from the second plastic part 32, thereby pressing the connecting piece 2 tightly against the second plastic part 32.

[0049] In other embodiments, it can also be set as follows: the connecting piece 2 is provided with an injection cavity and an injection channel connected to the injection cavity, the inner diameter of the injection channel is smaller than the inner diameter of the injection cavity, one end of the plastic connecting part 321 is provided with a plastic limiting structure 3211, the plastic limiting structure 3211 is filled in the injection cavity, and the other end of the plastic connecting part 321 passes through the injection channel and is integrally formed with the second plastic part 32. The plastic limiting structure 3211 can be used to apply force to the inner wall of the injection cavity to press the connecting piece 2 against the second plastic part 32.

[0050] Optionally, the plastic limiting structure 3211 is rectangular, which is equivalent to increasing the contact length between the plastic limiting structure 3211 and the connecting piece 2, thereby making the connecting piece 2 more evenly stressed and improving the installation stability of the connecting piece 2.

[0051] Optionally, the first plastic part 31 and the second plastic part 32 are respectively located on both sides of the cover plate 1 along its thickness direction; the cover plate 1 is provided with at least one cover through-hole 11, the first plastic part 31 is provided with a first through-hole 312 arranged in a one-to-one correspondence with the cover through-hole 11, and the second plastic part 32 is provided with a second through-hole 322 arranged in a one-to-one correspondence with the cover through-hole 11. The tab can pass through the first through-hole 312, the cover through-hole 11, and the second through-hole 322 to electrically connect with the connecting piece 2. In other words, the first through-hole 312, the cover through-hole 11, and the second through-hole 322 are connected in sequence to form the tab through-hole a, and the tab can pass through the tab through-hole a to electrically connect with the connecting piece 2. This arrangement allows the connecting piece 2 to be located outside the battery housing and not occupy the internal space of the battery housing. At the same time, the tab passes through the first through-hole 312, the cover through-hole 11, and the second through-hole 322 in sequence, then folds over the cover plate 1 and is electrically connected to the connecting piece 2. This can also reduce the space occupied by the tab inside the battery housing, which is conducive to improving the utilization rate of the internal space of the battery housing.

[0052] Optionally, the injection-molded integrated battery cover assembly further includes a hole plastic part 33, which is disposed within the cover through-hole 11 and can be sleeved onto the outside of the tab, thereby preventing the tab from shifting within the cover through-hole 11 and contacting the cover 1, causing a short circuit. Furthermore, the two ends of the hole plastic part 33 are respectively connected to the first plastic part 31 and the second plastic part 32, thereby playing a positioning role for the first plastic part 31 and the second plastic part 32.

[0053] In this embodiment, the first plastic part 31, the second plastic part 32, and the hole plastic part 33 are integrally formed by injection molding and mounted on the cover plate 1. This simplifies the process and helps improve battery processing efficiency. Of course, in other embodiments, the first plastic part 31, the second plastic part 32, and the hole plastic part 33 can also be provided separately and fixedly connected.

[0054] Optionally, the second plastic part 32 is provided with a fixing flange 323 , and the fixing flange 323 abuts against the cover plate 1 along the thickness direction of the cover plate 1 , and the second plastic part 32 can be fixed by pressing the fixing flange 323 .

[0055] It should be noted that if the width of the fixing flange 323 is too small, securing the part may be difficult or even impossible. If the width of the fixing flange 323 is too large, the weight of the second plastic part 32 may increase, thereby increasing material usage and cost. Optionally, the width d of the fixing flange 323 is 1 mm to 10 mm to achieve both easy assembly and low cost.

[0056] Exemplarily, the width d of the fixing flange 323 can be any value between 1 mm and 10 mm, such as 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, etc.

[0057] Optionally, the cover plate 1 is provided with a first mounting groove 12, and the second plastic part 32 is provided in the first mounting groove 12; the second plastic part 32 is provided with a second mounting groove 324, and the connecting piece 2 is provided in the second mounting groove 324; such a setting is conducive to reducing the overall thickness of the injection-molded integrated battery cover plate assembly, thereby having the effect of reducing the space occupied inside the battery casing.

[0058] Furthermore, the cover plate 1 has a thickness of H. Along the thickness direction of the cover plate 1, the spacing between the bottom wall of the second mounting groove 324 and the surface of the cover plate 1 provided with the first mounting groove 12 is h, and h is 0-0.5H. This arrangement not only ensures the strength of the cover plate 1, but also helps improve the internal space utilization of the battery housing.

[0059] For example, the distance h between the bottom wall of the second mounting groove 324 and the surface of the cover plate 1 provided with the first mounting groove 12 can be any value between 0 and 0.5H, such as 0, 0.1H, 0.2H, 0.3H, 0.4H, 0.5H, etc. It is understood that when h is zero, it means that the second plastic component 32 is not provided with the second mounting groove 324, and the connecting piece 2 directly abuts the surface of the second plastic component 32 facing away from the cover plate 1.

[0060] In this embodiment, the tabs include positive tabs and negative tabs, that is, the cover plate 1 of this embodiment is provided with both positive and negative electrodes; at least one tab through-hole a includes a positive through-hole a1 for the positive tab to pass through and a negative through-hole a2 for the negative tab to pass through. Furthermore, the positive through-hole a1 and the negative through-hole a2 are respectively provided at both ends of the cover plate 1.

[0061] It should be noted that the number of positive electrode through holes a1 can be one, two, or even more, depending on specific needs and is not limited here. Of course, the number of negative electrode through holes a2 can be one, two, or even more, depending on specific needs and is not limited here. In this embodiment, two positive electrode through holes a1 and two negative electrode through holes a2 are provided.

[0062] In other embodiments, the tabs may also only include positive tabs or negative tabs, that is, the cover plate 1 is only provided with the positive electrode or the negative electrode, and the positive tabs or the negative tabs can be passed through the tab through-hole a.

[0063] It is understandable that when the cover plate 1 is provided with both a positive electrode and a negative electrode, two connecting pieces 2 need to be provided, one of which is electrically connected to the positive electrode tab, and the other is electrically connected to the negative electrode tab. It should be noted that in this embodiment, two second plastic parts 32 are provided, and the second plastic parts 32 are provided in a one-to-one correspondence with the connecting pieces 2. In other embodiments, it can also be provided that: only one second plastic part 32 is provided, and one end of the second plastic part 32 is clamped between one of the connecting pieces 2 and the cover plate 1, and the other end is clamped between the other connecting piece 2 and the cover plate 1. In other words, the two connecting pieces 2 and the cover plate 1 are both insulated by one second plastic part 32.

[0064] Optionally, the shaping structure 311 includes an inclined surface, which is provided on the side of the first plastic part 31 facing the battery cell, and can guide the tab into the first through hole 312. Shaping and gathering the tab by the inclined surface has a simple structure, is easy to manufacture, and has low cost.

[0065] In this embodiment, two inclined surfaces are provided, and the two inclined surfaces are respectively provided on both sides of the first through hole 312. Then, the tabs on both sides of the first through hole 312 can be shaped and gathered by the two inclined surfaces, which is beneficial to further improve the shape of the tabs.

[0066] Optionally, the cover plate 1 is further provided with a liquid injection port 13 for adding electrolyte to the battery case through the liquid injection port 13. For example, the liquid injection port 13 can be provided on one side of the positive electrode through-hole a1, on one side of the negative electrode through-hole a2, or between the positive electrode through-hole a1 and the negative electrode through-hole a2. In this embodiment, the liquid injection port 13 is provided on one side of the negative electrode through-hole a2.

[0067] Optionally, the cover plate 1 is further provided with an explosion-proof valve 4 to ensure the safety of the battery.

[0068] Furthermore, the explosion-proof valve 4 includes an explosion-proof notch to guide the explosion-proof valve 4 along the explosion-proof notch when the pressure in the battery housing is too high. The explosion-proof notch is provided on the side of the explosion-proof valve 4 facing the battery cell. Of course, in other embodiments, the explosion-proof notch can also be provided on the side of the explosion-proof valve 4 facing away from the battery cell.

[0069] Note that the above are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are possible for those skilled in the art without departing from the scope of protection of the present invention. Therefore, while the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. Injection molded integrated battery cover assembly, characterized in that: include: A cover plate (1) is used to cover an opening at one end of the battery housing and seal the opening; A connecting piece (2), the connecting piece (2) being used to be electrically connected to a pole and a tab of a battery respectively; A first plastic part (31), the first plastic part (31) being arranged on one side of the cover plate (1) located inside the battery housing, the first plastic part (31) being provided with a shaping structure (311), the shaping structure (311) being used to retract the tab; A second plastic part (32), the second plastic part (32) is sandwiched between the connecting piece (2) and the cover plate (1), the second plastic part (32) is provided with at least one plastic connecting portion (321) integrally formed therewith, and the other end of the plastic connecting portion (321) is connected to the connecting piece (2).

2. The injection-molded integrated battery cover assembly according to claim 1, characterized in that: The connecting piece (2) is provided with a connecting channel (21) corresponding to the plastic connecting portion (321), one end of the plastic connecting portion (321) is provided with a plastic limiting structure (3211), the plastic limiting structure (3211) abuts against a side of the connecting piece (2) away from the second plastic part (32), and the other end of the plastic connecting portion (321) passes through the connecting channel (21) and is integrally formed with the second plastic part (32); or, The connecting piece (2) is provided with an injection cavity and an injection channel connected to the injection cavity, the inner diameter of the injection channel is smaller than the inner diameter of the injection cavity, one end of the plastic connecting portion (321) is provided with a plastic limiting structure (3211), the plastic limiting structure (3211) is filled in the injection cavity, and the other end of the plastic connecting portion (321) passes through the injection channel and is integrally formed with the second plastic part (32).

3. The injection-molded integrated battery cover assembly according to claim 2, characterized in that: The plastic limiting structure (3211) is rectangular.

4. The injection-molded integrated battery cover assembly according to claim 1, characterized in that: The first plastic part (31) and the second plastic part (32) are respectively located on both sides of the cover plate (1) along the thickness direction thereof; The cover plate (1) is provided with at least one cover through hole (11), the first plastic part (31) is provided with a first through hole (312) arranged in a one-to-one correspondence with the cover through hole (11), and the second plastic part (32) is provided with a second through hole (322) arranged in a one-to-one correspondence with the cover through hole (11), and the tab can pass through the first through hole (312), the cover through hole (11), and the second through hole (322) to be electrically connected to the connecting piece (2).

5. The injection-molded integrated battery cover assembly according to claim 4, characterized in that: The injection-molded integrated battery cover assembly further includes a hole plastic part (33), which is arranged in the cover through hole (11) and can be sleeved on the outside of the tab, and the two ends of the hole plastic part (33) are respectively connected to the first plastic part (31) and the second plastic part (32).

6. The injection-molded integrated battery cover assembly according to claim 5, characterized in that: The first plastic part (31), the second plastic part (32) and the hole plastic part (33) are integrally formed; or, The first plastic part (31), the second plastic part (32) and the hole plastic part (33) are separately arranged and fixedly connected.

7. The injection-molded integrated battery cover assembly according to claim 4, characterized in that: The second plastic part (32) is provided with a fixing flange (323), and the fixing flange (323) abuts against the cover plate (1) along the thickness direction of the cover plate (1); The width d of the fixing flange (323) is 1 mm to 10 mm.

8. The injection-molded integrated battery cover assembly according to claim 4, characterized in that: The cover plate (1) is provided with a first mounting groove (12), and the second plastic part (32) is provided in the first mounting groove (12); The second plastic part (32) is provided with a second installation groove (324), and the connecting piece (2) is provided in the second installation groove (324); The thickness of the cover plate (1) is H; along the thickness direction of the cover plate (1), the distance between the bottom wall of the second mounting groove (324) and the surface of the cover plate (1) provided with the first mounting groove (12) is h, and h is 0-0.5H.

9. The injection-molded integrated battery cover assembly according to claim 4, characterized in that: The shaping structure (311) comprises an inclined surface, which is provided on a side of the first plastic part (31) facing the battery core, and the inclined surface can guide the tab to enter the first through hole (312).

10. The injection-molded integrated battery cover assembly according to claim 1, characterized in that: The cover plate (1) is provided with a liquid injection port (13); and / or, The cover plate (1) is provided with an explosion-proof valve (4).

Images