Cover plate assembly for battery, battery and vehicle

Abstract

The utility model discloses a cover plate assembly for a battery, the battery and a vehicle, the cover plate assembly comprises a cover plate body, the cover plate body is provided with an installation sinking table, an installation hole suitable for a battery pole to pass through is formed in the installation sinking table, and the bottom surface of the installation sinking table is provided with an installation groove surrounding the periphery of the installation hole; the insulation assembly is arranged on the mounting sinking table and is connected with the pole; and the first sealing piece abuts against the insulation assembly and the inner wall of the installation groove on the two axial sides of the installation hole so as to seal the space between the bottom face of the installation sinking table and the insulation assembly. The installation groove is formed in the cover plate body, the first sealing piece is arranged in the installation groove, the insulation assembly and the bottom face of the installation sinking table are sealed, electrolyte is prevented from entering the space between the cover plate body and the insulation assembly, and use safety of the cover plate is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of batteries, in particular to a cover plate assembly for batteries, a battery and a vehicle. Background Art

[0002] In the prior art, the upper end surface of the battery is mainly compressed by the cover plate and the upper insulating member to seal the battery. When the positive electrode of the battery is injected with liquid, there is a situation where the electrolyte flows out, flows through the upper end surface of the battery cover plate and penetrates into the upper insulating member. After the electrolyte crystallizes, it will cause the battery insulation failure problem, affecting the use of the battery. 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 cover assembly for a battery. The application provides a mounting groove in the cover body, and sets a first sealing member in the mounting groove to seal the insulating assembly with the bottom surface of the mounting sink, thereby preventing electrolyte from entering between the cover body and the insulating assembly, thereby ensuring the safety of the cover.

[0004] The utility model also provides a battery with the cover plate assembly.

[0005] The utility model also provides a vehicle with the battery.

[0006] According to the utility model, the cover plate assembly for the battery includes: a cover plate body, a mounting platform is provided on the cover plate body, a mounting hole suitable for the battery pole to pass through is formed on the mounting platform, and a mounting groove surrounding the outer circumference of the mounting hole is provided on the bottom surface of the mounting platform; an insulating component, the insulating component is arranged on the mounting platform and connected to the pole; a first sealing component, the first sealing component is respectively stopped against the insulating component and the inner wall of the mounting groove on both axial sides of the mounting hole to seal the bottom surface of the mounting platform and the insulating component.

[0007] According to the utility model, the cover plate assembly is convenient for installing the insulating component by arranging a mounting sink on the cover plate body, and the inner peripheral wall of the mounting sink is limited with the outer peripheral wall of the insulating component to avoid shaking of the insulating component and ensure stable installation of the insulating component. By arranging a mounting groove surrounding the mounting hole on the bottom surface of the mounting sink, a first sealing member is arranged in the mounting groove to seal the bottom surface of the mounting sink and the insulating component. When the battery is filled with liquid, since the periphery of the mounting hole is sealed by the first sealing member, the electrolyte cannot enter the gap between the cover plate body and the insulating component through the mounting hole, thereby ensuring that the insulation of the cover plate body will not fail due to crystallization of the electrolyte, thereby ensuring the safety of battery use.

[0008] According to some embodiments of the present invention, the first sealing member is configured as an annular structure that cooperates with the mounting groove.

[0009] According to some embodiments of the present invention, the first sealing member is configured as a flexible member and is interference fit with the mounting groove.

[0010] According to some embodiments of the present invention, the axial width of the first sealing member is greater than the axial depth of the mounting groove.

[0011] According to some embodiments of the utility model, it also includes: a pole mounting plate, which is arranged on the side of the cover body away from the insulating assembly; a pole, which is arranged on the pole mounting plate and is suitable for cooperating with the insulating assembly after the pole passes through the mounting hole.

[0012] According to some embodiments of the utility model, it also includes: a second seal, which is sleeved on the outer periphery of the pole and arranged between the pole mounting plate and the cover plate body, and at least a portion of the second seal extends into the mounting hole and seals the pole and the mounting hole.

[0013] According to some embodiments of the present invention, the second seal is constructed in an annular shape and includes: a first ring, which is arranged between the inner wall of the mounting hole and the pole and extends toward the pole mounting plate; and a second ring, which is arranged at one end of the first ring toward the pole mounting plate and extends radially.

[0014] According to some embodiments of the utility model, the outer periphery of the pole is matched with the matching groove of the insulating component, and the insulating component is provided with a clamping protrusion that cooperates with the matching groove, and the clamping protrusion is received in the matching groove to limit the movement of the insulating component in the axial direction.

[0015] The following briefly describes a battery according to another embodiment of the present invention.

[0016] The battery according to the utility model has the cover plate assembly described in any one of the above-mentioned embodiments. Since the battery according to the utility model has the cover plate assembly described in any one of the above-mentioned embodiments, when the battery according to the utility model is filled with liquid, the electrolyte will not enter the gap between the cover plate body and the insulating assembly, thereby ensuring that the insulation of the battery will not fail and the battery safety is higher.

[0017] A vehicle according to another embodiment of the present invention will be briefly described below.

[0018] The vehicle according to the utility model has the above-mentioned battery. Since the vehicle according to the utility model has the above-mentioned battery, the safety performance of the battery in the vehicle according to the utility model is better and the vehicle safety is high.

[0019] 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

[0020] 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:

[0021] Figure 1 is an exploded view of a cover plate assembly according to an embodiment of the utility model;

[0022] Figure 2 is a front view of an exploded view of a cover plate assembly according to an embodiment of the utility model;

[0023] Figure 3 is a cross-sectional view of a cover plate assembly according to an embodiment of the utility model.

[0024] Reference numerals:

[0025] Cover plate assembly 1;

[0026] Cover plate body 11, mounting platform 111, mounting hole 112, mounting groove 113;

[0027] Insulating assembly 12, snap-fit ​​protrusion 121;

[0028] First sealing member 13; pole 141, matching groove 1411, pole mounting plate 142;

[0029] The second sealing member 15 , the first ring 151 , and the second ring 152 . DETAILED DESCRIPTION

[0030] 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.

[0031] In the prior art, the upper end surface of the battery is mainly compressed by the cover plate and the upper insulating member to seal the battery. When the positive electrode of the battery is injected with liquid, there is a situation where the electrolyte flows out, flows through the upper end surface of the battery cover plate and penetrates into the upper insulating member. After the electrolyte crystallizes, it will cause the battery insulation failure problem, affecting the use of the battery.

[0032] Reference below Figure 1-Figure 3 A cover plate assembly for a battery according to an embodiment of the present utility model is described.

[0033] According to the utility model, the cover plate assembly 1 for the battery includes a cover plate body 11, an insulating assembly 12 and a first sealing member 13. A mounting sink 111 is provided on the cover plate body 11. A mounting hole 112 suitable for the battery pole 141 to pass through is formed on the mounting sink 111. A mounting groove 113 surrounding the outer periphery of the mounting hole 112 is provided on the bottom surface of the mounting sink 111. The insulating assembly 12 is provided on the mounting sink 111 and connected to the pole 141. The first sealing member 13 is respectively abutted against the insulating assembly 12 and the inner wall of the mounting groove 113 on both axial sides of the mounting hole 112 to seal the bottom surface of the mounting sink 111 and the insulating assembly 12.

[0034] like Figure 1 and Figure 2 As shown, a mounting sink 111 is provided on the cover body 11, and the mounting sink 111 is constructed into two, corresponding to the positive electrode of the battery and the negative electrode of the battery respectively. The mounting sinks 111 corresponding to the positive and negative electrodes of the battery have the same structure, and since the injection hole of the cover assembly 1 of the present application is arranged at a position close to the positive electrode of the battery, the sealing problem of the positive electrode of the battery is mainly solved, wherein the insulating assembly 12 is suitable for being installed in the mounting sink 111, and the inner peripheral wall of the mounting sink 111 and the outer peripheral wall of the insulating assembly 12 are mutually limited to ensure that the insulating assembly 12 and the cover body 11 are stably installed, wherein a mounting hole 112 is provided in the mounting sink 111, and a sealing member surrounding the mounting hole 112 is provided on the bottom surface of the mounting sink 111. The first sealing member 13 is provided in the mounting groove 113. After the insulating component 12 is mounted on the mounting sink 111, the bottom wall of the insulating component 12 abuts against one axial side of the first sealing member 13, and the other axial side of the first sealing member 13 abuts against the bottom wall of the mounting groove 113. The first sealing member 13 seals the mounting hole 112 circumferentially. In the process of injecting liquid into the battery through the injection hole, since the first sealing member 13 seals the mounting hole 112 circumferentially, the electrolyte cannot pass through the mounting hole 112 and enter between the cover body 11 and the insulating component 12, thereby protecting the cover body 11 and ensuring that the insulation of the cover body 11 will not fail due to crystallization of the electrolyte, thereby ensuring the safety of the battery.

[0035] According to the utility model, the cover assembly 1 is provided with a mounting platform 111 on the cover body 11 to facilitate the installation of the insulating assembly 12, and the inner peripheral wall of the mounting platform 111 and the outer peripheral wall of the insulating assembly 12 are limited to prevent the insulating assembly 12 from shaking, thereby ensuring that the insulating assembly 12 is installed stably, and a mounting groove 113 surrounding the mounting hole 112 is provided on the bottom surface of the mounting platform 111, and a first sealing member 13 is provided in the mounting groove 113 to seal the bottom surface of the mounting platform 111 and the insulating assembly 12. When the battery is filled with liquid, since the periphery of the mounting hole 112 is sealed by the first sealing member 13, the electrolyte cannot pass through the mounting hole 112 into the gap between the cover body 11 and the insulating assembly 12, thereby ensuring that the insulation of the cover body 11 will not fail due to electrolyte crystallization, thereby ensuring the safety of battery use.

[0036] According to some embodiments of the present invention, the first sealing member 13 is configured as an annular structure that matches the mounting groove 113 .

[0037] like Figure 1 and Figure 2 As shown, the mounting hole 112 is constructed as a circular hole, the mounting groove 113 is constructed as an annular hole arranged around the mounting hole 112, and the first seal 13 is constructed as an annular structure that cooperates with the annular hole, which is convenient for the installation of the first seal 13. The first seal 13 is tightly matched with the mounting groove 113 to improve the sealing performance of the first seal 13. The first seal 13 surrounds the outer periphery of the mounting hole 112, which can effectively block the electrolyte from entering the gap between the cover body 11 and the insulating component 12, thereby ensuring the safe use of the cover body 11.

[0038] According to some embodiments of the present invention, the first sealing member 13 is configured as a flexible member and is interference fit with the mounting groove 113 .

[0039] Specifically, the first seal 13 is constructed as a flexible member, and the first seal 13 is arranged in the installation groove 113. During the installation of the insulating component 12, the insulating component 12 squeezes the first seal 13, and the inner circumferential wall of the first seal 13 is tightly fitted with the inner circumferential wall of the installation groove 113, and the outer circumferential wall of the first seal 13 is tightly fitted with the outer circumferential wall of the installation groove 113. The axial sides of the first seal 13 are respectively stopped by the bottom wall of the insulating component 12 and the bottom wall of the installation groove 113. The first seal 13 is interference fit with the installation groove 113 to improve the sealing performance of the first seal 13. The first seal 13 seals the periphery of the installation hole 112 to prevent the electrolyte from entering the gap between the insulating component 12 and the cover body 11, thereby protecting the cover body 11.

[0040] According to some embodiments of the utility model, the axial width of the first seal 13 is greater than the axial depth of the mounting groove 113, the portion of the first seal 13 that protrudes axially from the mounting groove 113 is squeezed into the mounting groove 113 by the insulating component 12, and the first seal 13 and the mounting groove 113 have an interference fit, thereby improving the sealing performance of the first seal 13.

[0041] According to some embodiments of the utility model, the cover plate assembly 1 also includes a pole mounting plate 142 and a pole 141, the pole mounting plate 142 is arranged on the side of the cover plate body 11 away from the insulating assembly 12; the pole 141 is arranged on the pole mounting plate 142 and is suitable for cooperating with the insulating assembly 12 after the pole 141 passes through the mounting hole 112.

[0042] like Figure 1 and Figure 2 As shown, a pole mounting plate 142 is provided at one end of the pole 141 away from the insulating component 12. After the pole 141 passes through the mounting hole 112, the pole mounting plate 142 and the insulating component 12 can be connected by bolts, and the end of the pole 141 can be matched with the insulating component 12 to ensure the stable installation of the pole 141. The insulating component 12 and the pole mounting plate 142 respectively seal and protect the pole 141 and the cover body 11 from both sides of the thickness of the cover body 11 to prevent the electrolyte from entering between the insulating component 12 and the cover body 11.

[0043] According to some embodiments of the utility model, the cover plate assembly 1 also includes a second seal 15, which is sleeved on the outer periphery of the pole 141 and arranged between the pole mounting plate 142 and the cover plate body 11, and at least a portion of the second seal 15 extends into the mounting hole 112 and seals the pole 141 and the mounting hole 112.

[0044] like Figure 1 and Figure 2 As shown, a second seal 15 is provided on the side of the cover body 11 away from the insulating assembly 12, and the second seal 15 is sleeved on the outer periphery of the pole 141. As the pole 141 passes through the mounting hole 112, at least part of the second seal 15 extends into the mounting hole 112, and at least part of the outer peripheral wall of the second seal 15 abuts against the inner wall of the mounting hole 112 to seal the gap between the mounting hole 112 and the pole 141, thereby preventing the electrolyte from entering between the cover body 11 and the insulating assembly 12.

[0045] According to some embodiments of the present invention, the second seal 15 is constructed in an annular shape and includes a first ring 151 and a second ring 152. The first ring 151 is arranged between the inner wall of the mounting hole 112 and the pole 141 and extends toward the pole mounting plate 142; the second ring 152 is arranged at one end of the first ring 151 facing the pole mounting plate 142 and extends radially.

[0046] like Figure 2 As shown, the second sealing member 15 includes a first ring 151 and a second ring 152. The second sealing member 15 is adapted to cooperate with the mounting hole 112 to seal the gap between the pole 141 and the mounting hole 112. As the pole 141 passes through the mounting hole 112, the first ring 151 extends into the mounting hole 112, and the inner circumferential wall of the first ring 151 abuts against the outer circumferential wall of the pole 141, and the outer circumferential wall of the first ring 151 abuts against the inner wall of the mounting hole 112, so as to seal the gap between the pole 141 and the mounting hole 112. The first ring 151 can be constructed as a flexible part and has an interference fit with the pole 141 and the mounting hole 112; the second ring 152 is arranged at one end of the first ring 151 facing the pole mounting plate 142, and the second ring 152 can seal the gap between the pole 141 and the pole mounting plate 142. By arranging the first ring 151 and the second ring 152 on the second sealing member 15, double sealing of the mounting hole 112 and the pole 141 is achieved, thereby improving the sealing performance of the second sealing member 15.

[0047] According to some embodiments of the utility model, the outer periphery of the pole 141 cooperates with the matching groove 1411 of the insulating component 12, and the insulating component 12 is provided with a clamping protrusion 121 that cooperates with the matching groove 1411. The clamping protrusion 121 is accommodated in the matching groove 1411 to limit the movement of the insulating component 12 in the axial direction. After the pole 141 passes through the mounting hole 112, the pole 141 is clamped and matched with the clamping protrusion 121 through the matching groove 1411 to prevent the pole 141 from shaking, thereby ensuring the stable installation of the pole 141.

[0048] The battery according to the utility model is briefly described below.

[0049] The battery according to the utility model has the cover plate assembly 1 described in any one of the above-mentioned embodiments. Since the battery according to the utility model has the cover plate assembly 1 described in any one of the above-mentioned embodiments, when the battery according to the utility model is filled with liquid, the electrolyte will not enter the gap between the cover plate body 11 and the insulating assembly 12, thereby ensuring that the battery will not fail in insulation and the battery safety is higher.

[0050] The vehicle according to the present utility model is briefly described below.

[0051] The vehicle according to the utility model has the above-mentioned battery. Since the vehicle according to the utility model has the above-mentioned battery, the safety performance of the battery in the vehicle according to the utility model is better and the vehicle safety is high.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0053] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0054] In the description of the present invention, "plurality" means two or more.

[0055] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0056] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" 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.

[0058] 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 cover plate assembly for a battery, It is characterized in that include: A cover plate body, wherein a mounting platform is provided on the cover plate body, a mounting hole suitable for the battery pole to pass through is formed on the mounting platform, and a mounting groove surrounding the outer periphery of the mounting hole is provided on the bottom surface of the mounting platform; An insulating component, the insulating component is arranged on the mounting sink and connected to the pole; The first sealing member is disposed on both axial sides of the mounting hole and abuts against the insulating component and the inner wall of the mounting groove to seal the bottom surface of the mounting sink and the insulating component.

2. The cover plate assembly for a battery according to claim 1, It is characterized in that The first sealing member is configured as an annular structure that matches the mounting groove.

3. The cover plate assembly for a battery according to claim 2, It is characterized in that The first sealing member is configured as a flexible member and is interference fit with the mounting groove.

4. The cover plate assembly for a battery according to claim 3, It is characterized in that The axial width of the first sealing member is greater than the axial depth of the mounting groove.

5. The cover plate assembly for a battery according to claim 1, It is characterized in that Also includes: A pole mounting plate, the pole mounting plate being arranged on a side of the cover body away from the insulating assembly; A pole is arranged on the pole mounting plate and is suitable for cooperating with the insulating assembly after the pole passes through the mounting hole.

6. The cover plate assembly for a battery according to claim 5, It is characterized in that Also includes: A second sealing member is sleeved on the outer periphery of the pole and arranged between the pole mounting plate and the cover plate body, and at least a portion of the second sealing member extends into the mounting hole to seal the pole and the mounting hole.

7. The cover plate assembly for a battery according to claim 6, It is characterized in that The second sealing member is annular in shape and comprises: A first ring, the first ring is arranged between the inner wall of the mounting hole and the pole and extends toward the pole mounting plate; The second ring is arranged at one end of the first ring facing the pole mounting plate and extends in the radial direction.

8. The cover plate assembly for a battery according to claim 1, It is characterized in that The outer periphery of the pole is provided with a matching groove that matches with the insulating component, and the insulating component is provided with a clamping protrusion that matches with the matching groove. The clamping protrusion is received in the matching groove to limit the movement of the insulating component in the axial direction.

9. A battery, It is characterized in that The invention comprises the cover plate assembly according to any one of claims 1 to 8.

10. A vehicle, It is characterized in that Comprising the battery as claimed in claim 9.

Images