Battery cover plate assembly and battery with same

Abstract

The battery cover plate assembly comprises a cover plate, a pole and an insulating assembly, the insulating assembly comprises an upper insulating part, a sealing ring and a lower insulating part, the pole comprises a pole body and a pole turnup, the pole turnup surrounds the peripheral side of the pole body, and the upper insulating part and the lower insulating part are arranged on the pole body. The upper insulating part comprises a first insulating part body, a first flange and a filling structure, and the filling structure is arranged at the joint of the first flange and the first insulating part body. According to the battery cover plate assembly disclosed by the embodiment of the utility model, the filling structure is arranged on the upper insulating part, so that a gap is not easy to form between the upper insulating part and the pole, and the air tightness and the structural strength of the battery cover plate assembly can be improved. The filling structure is arranged between the first flange and the first insulating part body, so that the connection strength between the first flange and the first insulating part body can be effectively improved, and the structural strength of the upper insulating part can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic batteries, in particular to a battery cover assembly and a battery having the same. Background Art

[0002] In the related art, the battery cover assembly includes a cover, a pole, and various insulating parts arranged between the cover and the pole. When assembling, the pole can be limited to the cover by bending the end of the pole outside the battery shell. However, with this assembly method of the pole, the end of the pole after the bending is prone to partial wear. However, in the related art, this situation is often not taken into account when insulating the pole, resulting in a large gap between the pole and the upper insulating part, causing the upper insulating part to easily loosen and causing the battery cover assembly to easily have problems such as poor airtightness. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a battery cover assembly, which has a stable structure and good sealing performance.

[0004] According to an embodiment of the utility model, a battery cover assembly comprises: a cover, a mounting hole is provided on the cover; a pole, the pole is installed in the mounting hole; and an insulating assembly, the insulating assembly comprises an upper insulating member, a sealing ring and a lower insulating member which are sequentially tightly arranged between the cover and the pole, wherein the pole comprises a column and a pole flange arranged at one axial end of the column, the pole flange surrounds the outer peripheral side of the column, and the pole flange is constructed by bending a protruding structure on the end surface of one axial end of the column toward the radial outer side of the pole; the upper insulating member comprises a first insulating member body and a first flange, the first flange is connected to the outer peripheral side of the first insulating member body and extends along the axial direction of the pole, the first flange surrounds the outer peripheral side of the pole flange, the upper insulating member also comprises a filling structure located on the side of the upper insulating member facing the pole flange, and the filling structure is arranged at the connection between the first flange and the first insulating member body.

[0005] According to the battery cover assembly of the embodiment of the utility model, by providing a filling structure on the upper insulating member, it is not easy to form a gap between the upper insulating member and the pole, thereby improving the airtightness and structural strength of the battery cover assembly. By providing the filling structure between the first flange and the first insulating member body, the connection strength between the first flange and the first insulating member body can be effectively improved, thereby effectively improving the structural strength of the upper insulating member.

[0006] In addition, the battery cover assembly according to the utility model may also have the following additional technical features:

[0007] In some embodiments of the present invention, the side surface of the filling structure facing the pole flange is a concave surface, and the concave surface is recessed in a direction away from the pole flange.

[0008] In some embodiments of the present invention, the concave surface is a curved surface.

[0009] In some embodiments of the present invention, the upper insulating member also includes a second flange, which is connected to the inner circumference of the first insulating member body and extends along the axial inner side of the pole, and the second flange is located between the outer surface of the column and the inner surface of the mounting hole, and the second flange transitions in an arc between the side of the pole and the surface of the first insulating member body.

[0010] In some embodiments of the present invention, the upper insulating member is an integrally formed injection molded member.

[0011] In some embodiments of the present invention, the protruding structure is arranged on the outer periphery of the pole end surface.

[0012] In some embodiments of the present invention, in the axial direction of the pole, the outer end surface of the pole flange is coplanar with the outer end surface of the column.

[0013] In some embodiments of the present invention, the pole also includes a seat body arranged at the other axial end of the column, the seat body surrounds the outer circumference of the column, and in the radial direction of the pole, the diameter of the seat body is greater than the diameter of the pole flange.

[0014] In some embodiments of the present invention, the pole is an integrally formed aluminum pole.

[0015] The utility model also provides a battery having the battery cover assembly of the above embodiment.

[0016] According to the battery of the embodiment of the utility model, by being provided with the battery cover assembly of the above embodiment, the air tightness of the battery can be improved, and the battery can have better structural strength.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1It is a structural schematic diagram of a battery cover assembly at one angle according to an embodiment of the utility model.

[0020] Figure 2 It is a structural schematic diagram of a battery cover assembly at one angle according to an embodiment of the utility model.

[0021] Figure 3 It is a cross-sectional view at one angle of a battery cover assembly according to an embodiment of the utility model.

[0022] Figure 4 It is an enlarged view of the cooperation between a partial pole and an insulating component of a battery cover assembly according to an embodiment of the utility model.

[0023] Figure 5 It is a cross-sectional view at one angle of a battery cover assembly according to an embodiment of the utility model.

[0024] Figure 6 It is a structural schematic diagram of a bent protruding structure of a battery cover assembly according to an embodiment of the utility model.

[0025] Figure 7 It is a structural schematic diagram of a battery cover assembly according to an embodiment of the utility model in which a protruding structure is bent into a pole flange.

[0026] Reference numerals:

[0027] Battery cover assembly 100,

[0028] Cover plate 1, mounting hole 11,

[0029] Pole 2, column 21, pole flange 22, seat 23, raised structure 24,

[0030] Insulation assembly 3 , upper insulation member 31 , first insulation member body 311 , first flange 312 , second flange 313 , filling structure 314 , sealing ring 32 , lower insulation member 33 . DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and 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 only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0033] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] Reference below Figure 1-Figure 7 A battery cover assembly 100 according to an embodiment of the present invention is described.

[0035] like Figure 1-Figure 4 As shown, the battery cover assembly 100 according to an embodiment of the utility model includes a cover plate 1, a pole 2 and an insulating assembly 3, the cover plate 1 is provided with a mounting hole 11, the pole 2 is installed in the mounting hole 11, and the insulating assembly 3 includes an upper insulating member 31, a sealing ring 32 and a lower insulating member 33 which are sequentially tightly arranged between the cover plate 1 and the pole 2.

[0036] The cover plate 1 may be made of a metal material, and the insulating component 3 is disposed between the cover plate 1 and the pole 2, which can not only separate the cover plate 1 and the pole 2, but also insulate the cover plate 1 and the pole 2 from each other. Optionally, the cover plate 1 may be an aluminum plate, and illustratively, the pole 2 may be electrically connected to the positive pole ear in the battery, so that the pole 2 is positively charged, and the cover plate 1 may be electrically connected to the negative pole ear in the battery, so that the cover plate 1 and even the battery casing are negatively charged.

[0037] Reference Figure 3In the example shown, the lower insulating member 33 is arranged on the lower side of the cover plate 1, the sealing ring 32 is sealingly connected above the lower insulating member 33, and the upper end of the sealing ring 32 extends into the gap between the mounting hole 11 and the pole 2, the lower end of the upper insulating member 31 is sealingly connected to the upper end of the sealing ring 32, and the upper end of the upper insulating member 31 extends out of the mounting hole 11 and wraps around the outer peripheral side of the pole 2.

[0038] Alternatively, if Figure 3 and Figure 4 As shown, the pole 2 includes a column 21 and a pole flange 22 arranged at one axial end of the column 21. The pole flange 22 surrounds the outer peripheral side of the column 21. The pole flange 22 is constructed by bending a protruding structure 24 on the end face of one axial end of the column 21 toward the radial outer side of the pole 2.

[0039] Reference Figure 3-Figure 7 In a specific example shown, the upper end of the seat body 23 is connected to the column 21, the cross-section of the column 21 is elliptical, and the end face of the upper end of the column 21 is provided with a protruding structure 24, and the protruding structure 24 is located at the outer peripheral edge of the end face. When assembling the pole 2, the end with the protruding structure 24 can be used as the front end, and then the protruding structure 24 and the column 21 are passed through the mounting hole 11 in sequence. The seat body 23 can abut against the lower side of the cover plate 1, and the protruding structure 24 passing through the mounting hole 11 can be bent to construct a pole flange 22, so as to abut against the upper side of the cover plate 1, thereby completing the installation of the pole 2.

[0040] With regard to the pole flange 22 constructed by bending the protruding structure 24, it should be noted that when the protruding structure 24 is folded, the protruding structure 24 located opposite to the arc region of the column 21 is prone to damage due to wear, extrusion, etc. during bending. Therefore, in the related art, the pole 2 is insulated by the upper insulating member 31, which easily leads to a large gap between the pole flange 22 and the upper insulating member 31, thereby making the upper insulating member 31 easy to loosen, resulting in the battery cover assembly 100 being prone to poor airtightness, and being easily damaged when subjected to a certain force, and also easily affecting the structural strength of the battery cover assembly 100.

[0041] In the present application, the upper insulating member 31 includes a first insulating member body 311 and a first flange 312. The first flange 312 is connected to the outer peripheral side of the first insulating member body 311 and extends along the axial direction of the pole 2. The first flange 312 surrounds the outer peripheral side of the pole flange 22. The upper insulating member 31 also includes a filling structure 314 located on the side of the upper insulating member 31 facing the pole flange 22. The filling structure 314 is arranged at the connection between the first flange 312 and the first insulating member body 311.

[0042] That is to say, after the protruding structure 24 is folded radially outward, even if the protruding structure 24 is damaged due to processing reasons, since the upper insulating member 31 of the present application has a filling structure 314, the upper insulating member 31 and the pole flange 22 constructed after folding can be matched more closely, so that it is not easy to have a gap between the upper insulating member 31 and the pole 2, thereby improving the air tightness and structural strength of the battery cover assembly 100.

[0043] Furthermore, since the filling structure 314 is disposed between the first flange 312 and the first insulating member body 311 , the connection strength between the first flange 312 and the first insulating member body 311 can be effectively improved, thereby effectively improving the structural strength of the upper insulating member 31 .

[0044] Furthermore, compared Figure 3-Figure 7 The example shown, Figure 3 and Figure 4 In the example of FIG. 3 , the filling structure 314 is not provided, so a gap will appear, and Figure 5-Figure 7 A filling structure 314 is provided in the upper insulating member 31, so a gap is not easy to appear. Therefore, if the filling structure 314 is not provided, the first flange 312 and the first insulating member body 311 are perpendicular to each other, and a gap is easy to appear between the upper insulating member 31 and the pole 2.

[0045] Therefore, according to the battery cover assembly 100 of the embodiment of the utility model, by providing the filling structure 314 on the upper insulating member 31, it is not easy to have a gap between the upper insulating member 31 and the pole 2, thereby improving the air tightness and structural strength of the battery cover assembly 100. By providing the filling structure 314 between the first flange 312 and the first insulating member body 311, the connection strength between the first flange 312 and the first insulating member body 311 can be effectively improved, thereby effectively improving the structural strength of the upper insulating member 31.

[0046] In some embodiments of the present invention, Figure 5 , Figure 6 and Figure 7 As shown, the side of the filling structure 314 facing the pole flange 22 is a concave surface, and the concave surface is concave in the direction away from the pole flange 22. Therefore, when the pole flange 22 is folded, it is not easy to cause damage to the filling structure 314, so that the filling structure 314 can effectively contact and cooperate with the pole flange 22 to avoid a gap between the pole 2 and the upper insulating member 31.

[0047] In some embodiments of the present invention, the concave surface is an arc surface. It can be understood that the arc structure can better disperse the force when it is subjected to the force, and can also better avoid stress concentration. In addition, due to its geometric characteristics, the arc structure has a higher resistance to compressive loads. Therefore, when the pole flange 22 is folded, it is not easy to cause damage to the filling structure 314, thereby improving the reliability of the filling structure 314.

[0048] In some embodiments of the utility model, the upper insulating member 31 also includes a second flange 313, which is connected to the inner circumference of the first insulating member body 311 and extends axially inwardly of the pole 2. The second flange 313 is located between the outer surface of the column 21 and the inner surface of the mounting hole 11. The second flange 313 forms an arc transition between the side of the pole 2 and the surface of the first insulating member body 311.

[0049] Reference Figure 3-Figure 4 As shown, the first insulating member body 311 extends in the radial direction and is located between the pole flange 22 and the outer side of the cover plate 1, the upper end of the second flange 313 is connected to the radial inner side of the first insulating member body 311, and the lower end of the second flange 313 extends in the axial direction and extends into the mounting hole 11, thereby better insulating the pole 2 and the cover plate 1. Further, by making the arc transition between the side of the second flange 313 facing the pole 2 and the surface of the first insulating member body 311, the reliability of the connection between the second flange 313 and the first insulating member body 311 can be better improved.

[0050] In some embodiments of the present invention, the upper insulating member 31 is an integrally formed injection molded part, so that the first insulating member body 311, the first flange 312 and the second flange 313 have good connection strength, and the production method of the upper insulating member 31 is relatively simple and the production cost is low.

[0051] In some embodiments of the utility model, the protruding structure 24 is arranged on the outer peripheral edge of the end face of the pole 2, thereby, the protruding structure 24 can be folded relatively easily. Optionally, the protruding structure 24 is a ring around the axis of the pole 2, thereby, the pole flange 22 constructed after the protruding structure 24 is folded can also be a ring around the axis of the pole 2.

[0052] Optionally, in the axial direction of the pole 2, the outer end surface of the pole flange 22 is coplanar with the outer end surface of the column 21, see the attached Figure 6 and Figure 7In a specific example shown, the entire raised structure 24 is folded from the end face of the column 21 to the outer peripheral side of the column 21, thereby making the pole 2 more aesthetically pleasing. In addition, it can be understood that the raised structure 24 remaining on the end face of the pole 2 after assembly is prone to interfere with other structures, and the outer end face of the folded pole flange 22 is coplanar with the outer end face of the column 21, which can better avoid the raised structure 24 remaining on the end face of the column 21, thereby avoiding the raised structure 24 from interfering with other structures.

[0053] In some embodiments of the present invention, refer to the attached Figure 3-Figure 7 As shown, the pole 2 also includes a seat body 23 arranged at the other axial end of the column 21, the seat body 23 surrounds the outer peripheral side of the column 21, and in the radial direction of the pole 2, the diameter of the seat body 23 is larger than the diameter of the pole flange 22. Thus, the pole 2 can be stably fixed in the mounting hole 11, and the seat body 23 with a larger area in the radial direction can also be better connected to the pole ear in the battery shell.

[0054] In some embodiments of the present invention, the pole 2 is an integrally formed aluminum pole. It can be understood that aluminum is relatively soft, so the pole 2 can be bent better, thereby constructing a pole flange 22 on the pole 2, and when the pole flange 22 is bent, the pole flange 22 has good integrity and is not easily damaged.

[0055] Optionally, the upper insulating member 31 may be made of plastic material, and the lower insulating member 33 may also be made of plastic material.

[0056] The utility model also provides a battery having the battery cover assembly 100 of the above embodiment.

[0057] According to the battery of the embodiment of the utility model, by providing the battery cover assembly 100 of the above embodiment, the air tightness of the battery can be improved, and the battery can have better structural strength.

[0058] Other structures and operations of the battery and the battery cover assembly 100 according to the embodiment of the utility model are known to ordinary technicians in the field and will not be described in detail here.

[0059] In the description of this specification, the description with reference to the terms "some embodiments", "optionally", "further" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0060] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A battery cover assembly, characterized in that: include: A cover plate, wherein a mounting hole is provided on the cover plate; A pole, the pole being installed in the installation hole; as well as, The insulating assembly includes an upper insulating member, a sealing ring and a lower insulating member which are sequentially arranged closely between the cover plate and the pole, wherein: The pole comprises a column and a pole flange arranged at one axial end of the column, the pole flange surrounds the outer peripheral side of the column, and the pole flange is formed by bending a protruding structure on an end surface of one axial end of the column toward the radial outer side of the pole; The upper insulating member includes a first insulating member body and a first flange, wherein the first flange is connected to the outer peripheral side of the first insulating member body and extends along the axial direction of the pole, and the first flange surrounds the outer peripheral side of the pole flange. The upper insulating member also includes a filling structure located on the side of the upper insulating member facing the pole flange, and the filling structure is arranged at the connection between the first flange and the first insulating member body.

2. The battery cover assembly according to claim 1, characterized in that: The side surface of the filling structure facing the pole flange is a concave surface, and the concave surface is recessed in a direction away from the pole flange.

3. The battery cover assembly according to claim 2, characterized in that: The concave surface is a curved surface.

4. The battery cover assembly according to claim 1, characterized in that: The upper insulating member also includes a second flange, which is connected to the inner circumferential side of the first insulating member body and extends along the axial inner side of the pole, the second flange is located between the outer surface of the column and the inner surface of the mounting hole, and the second flange transitions in an arc between the side surface of the pole and the surface of the first insulating member body.

5. The battery cover assembly according to any one of claims 1 to 4, characterized in that: The upper insulating member is an integrally formed injection-molded member.

6. The battery cover assembly according to claim 1, characterized in that: The protruding structure is arranged on the outer periphery of the pole end surface.

7. The battery cover assembly according to claim 1 or 6, characterized in that: In the axial direction of the pole, the outer end surface of the pole flange is coplanar with the outer end surface of the column.

8. The battery cover assembly according to claim 1, characterized in that: The pole further comprises a seat body arranged at the other axial end of the column, the seat body surrounds the outer peripheral side of the column, and in the radial direction of the pole, the diameter of the seat body is greater than the diameter of the pole flange.

9. The battery cover assembly according to claim 1, characterized in that: The pole is an integrally formed aluminum pole.

10. A battery, characterized in that: A battery cover assembly comprising any one of claims 1-9.

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