A cap assembly

Abstract

The application discloses a top cover assembly, and belongs to the technical field of batteries. The top cover assembly comprises a top cover and an insulating component. The top cover is provided with a fixing hole. The insulating component comprises an insulating part body and a connecting part. The insulating part body is arranged on one side of the top cover and is used for insulation between the top cover and a core package. The connecting part protrudes from one side of the insulating part body towards the top cover and is fixed in the fixing hole. In the top cover assembly, the insulating component is inserted into the fixing hole of the top cover through the connecting part and is fixed, so that the stability and reliability of the connection between the insulating component and the top cover can be improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and more particularly to a top cover assembly. Background Technology

[0002] A battery typically consists of a casing, a cell pack, and a top cover assembly. The cell pack is housed within the casing, and the top cover assembly is connected to the casing to seal it. The top cover assembly is also electrically connected to the cell pack to output electrical energy.

[0003] In related technologies, the top cover assembly includes a top cover, an insulating component, and terminals. The terminals pass through the top cover and the insulating component to fix the insulating component to the underside of the top cover, thereby achieving insulation between the underside of the top cover and the battery pack through the insulating component. However, the insulating component has poor installation stability, making it prone to displacement and detachment, which in turn affects battery safety. Utility Model Content

[0004] This application provides a top cover assembly to improve the stability of the installation of insulating components.

[0005] This application provides a top cover assembly, including:

[0006] Top cover, the top cover being provided with fixing holes; and,

[0007] An insulating component, comprising an insulating body and a connecting portion, wherein the insulating body is disposed on one side of the top cover and is used for insulation between the top cover and the core package, and the connecting portion protrudes from the side of the insulating body facing the top cover and is fixed in the fixing hole.

[0008] In some embodiments, the cross-section of the connecting part is non-circular, and the connecting part abuts against the inner circumferential surface of the fixing hole to restrict the rotation of the connecting part within the fixing hole.

[0009] In some embodiments, the insulating body is located on one side of the top cover along a first direction, the dimension of the connecting portion in the second direction is larger than the dimension of the connecting portion in the third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

[0010] In some embodiments, the cross-section of the connecting portion is elliptical or elongated.

[0011] In some embodiments, the fixing hole includes a first segment for receiving the connecting portion, the cross-section of the first segment having the same cross-sectional shape as the connecting portion.

[0012] In some embodiments, the insulating component further includes a limiting portion connected to the end of the connecting portion away from the insulating body, the limiting portion having its surface facing the insulating body engaged with the inner wall of the fixing hole; or,

[0013] The outer peripheral surface of the connecting part is provided with an engagement structure, which engages with the inner peripheral surface of the fixing hole. The engagement structure includes at least one of a threaded structure and a toothed structure.

[0014] In some embodiments, the cross-section of the connecting portion is a polygonal or cross-shaped structure; and / or,

[0015] The insulating component further includes a limiting part, which is connected to the end of the connecting part away from the insulating component body, and the side surface of the limiting part facing the insulating component body is engaged with the inner wall of the fixing hole.

[0016] In some embodiments, when the insulating component further includes the limiting portion, the fixing hole includes a first segment and a second segment, the first segment is connected to the side of the second segment near the insulating component body, the limiting portion is disposed in the second segment, and the cross-sectional shape of the first segment is different from that of the limiting portion so that the limiting portion is engaged in the second segment.

[0017] In some embodiments, the cross-section of the first segment has the same shape as the cross-section of the connecting portion.

[0018] In some embodiments, the outer peripheral surface of the connecting portion is provided with an engagement structure, which engages with the inner peripheral surface of the fixing hole. The engagement structure includes at least one of a threaded structure and a toothed structure.

[0019] In some embodiments, the connecting part is connected and fixed in the fixing hole by heat fusion.

[0020] In some embodiments, at least a portion of the connecting portion is integrally formed into the insulating body; and / or,

[0021] The insulating component further includes a fastener, which is mounted and fixed to the insulating component body, with one end of the fastener protruding from the side of the insulating component body facing the top cover to form at least part of the connection portion.

[0022] In some embodiments, the number of connecting portions is at least two, and the top cover assembly further includes a pole post passing through the top cover, with the connecting portion provided on each side of the pole post along the width direction of the top cover; and / or,

[0023] The number of connecting parts is multiple, and the top cover has two long sides extending along the length direction. Each of the long sides is provided with multiple fixing holes at intervals, and each fixing hole is connected to a connecting part.

[0024] The beneficial effects of the embodiments of this application are as follows:

[0025] In the top cover assembly of this application embodiment, the insulating component is inserted into the fixing hole of the top cover through the connecting part and fixed, which can improve the stability and reliability of the connection between the insulating component and the top cover. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0028] Figure 1 This is a schematic diagram of the top cover assembly provided in an embodiment of this application.

[0029] Figure 2 for Figure 1 A structural schematic diagram of the top cover assembly from another perspective.

[0030] Figure 3 for Figure 2 The top cover assembly shown is a cross-sectional view along the AA direction.

[0031] Figure 4 for Figure 3 A magnified view of the area at point X in the image.

[0032] Figure 5 for Figure 1 The exploded view of the top cover assembly is shown.

[0033] Figure 6 for Figure 1 A schematic diagram of the insulating components of the top cover assembly shown.

[0034] Figure 7 for Figure 6 A magnified view of the area at point Y.

[0035] Figure 8 for Figure 3 The diagram shows a second structural configuration at point X of the top cover assembly.

[0036] Figure 9 for Figure 6 The diagram shows a second structural design at point Y of the top cover assembly.

[0037] Figure 10 for Figure 6 The diagram shows a third structural design at point Y of the top cover assembly.

[0038] Figure 11 for Figure 6 The diagram shows the fourth structural configuration at point Y of the top cover assembly.

[0039] Figure 12 for Figure 6 The diagram shows the fifth structural configuration at point Y of the top cover assembly.

[0040] Figure 13 for Figure 6 The diagram shows the sixth structural configuration at point Y of the top cover assembly.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1. Top cover;

[0043] 11. Fixing hole; 12. Second guide slope; 13. First section; 14. Second section;

[0044] 2. Insulating components;

[0045] 21. Insulating component body; 22. Connecting part; 23. Fastener; 24. Base plate; 25. Buckle; 26. First guide slope; 27. Limiting part; 28. Engaging structure;

[0046] 3. Pole post;

[0047] H1, First direction; H2, Second direction; H3, Third direction. Detailed Implementation

[0048] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0049] It should be noted that in this application, "and / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / ", unless otherwise specified, generally indicates that the related objects before and after it are in an "or" relationship.

[0050] This application provides a top cover assembly to improve the reliability of the installation of the insulating components of the top cover assembly.

[0051] Before introducing the top cover assembly of the embodiments of this application, we will first give an overall introduction to the technical solution of the embodiments of this application in conjunction with the battery.

[0052] Batteries can be used in electrical devices. These devices can include vehicles, mobile phones, portable devices, laptops, ships, spacecraft, electric toys, and power tools, etc. Vehicles can be gasoline-powered cars, natural gas-powered cars, or new energy vehicles; new energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. Spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc. Electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc. This application does not limit the specific applications described herein.

[0053] In some implementations, the battery can be used in a battery pack. For example, the battery pack may include a housing and cell modules. The cell modules are disposed within the housing and include multiple batteries. This results in the multiple batteries integrated within the battery pack.

[0054] Therefore, electrical equipment may include a battery pack, so that the battery can be used in the electrical equipment.

[0055] Taking a vehicle as an example, the vehicle can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery pack is installed inside the vehicle, and the battery pack can be located at the bottom, front, or rear of the vehicle; this application does not limit the location in this embodiment.

[0056] Of course, in some other embodiments, the electrical device may only have a battery without a battery pack, that is, the battery cells may be directly installed inside the electrical device. This application does not limit this.

[0057] The battery includes a casing, a cell pack, and a top cover assembly. The casing has a receiving cavity and an opening, with the opening communicating with the receiving cavity. The cell pack is disposed within the receiving cavity. The top cover assembly is connected to the casing to close the opening.

[0058] Please refer to Figure 1 The top cover assembly includes a top cover 1, an insulating component 2, and a terminal post 3. The top cover 1 is connected to the housing to close the opening. The insulating component 2 is at least partially disposed on the side of the top cover 1 facing the core package for insulation between the top cover 1 and the core package. The terminal post 3 passes through the top cover 1 and the insulating component 2. Furthermore, the terminal post 3 can be electrically connected to the core package and used to output the electrical energy stored in the core package to the outside.

[0059] In related technologies, the insulating component 2 is sandwiched between the end of the terminal post 3 near the core package and the top cover 1, so that the insulating component 2 is fixed to the top cover 1. However, the stability of the insulating component 2 is poor, which makes it easy for the insulating component 2 to shift or fall off, thus affecting the safety of the battery.

[0060] Please continue to refer to this. Figure 2 , Figure 3 and Figure 4 Based on this, in this embodiment, the top cover 1 is provided with a fixing hole 11. The insulating component 2 includes an insulating body 21 and a connecting portion 22. The insulating body 21 is disposed on one side of the top cover 1 and is used for insulation between the top cover 1 and the core package; for example, the insulating body 21 is disposed on the side of the top cover 1 facing the core package, so that the insulating body 21 can achieve insulation between the top cover 1 and the core package. The connecting portion 22 protrudes from the side of the insulating body 21 facing the top cover 1 and is fixed in the fixing hole 11.

[0061] That is, the embodiments of this application provide a top cover assembly, including a top cover 1 and an insulating component 2. The top cover 1 is provided with a fixing hole 11. The insulating component 2 includes an insulating body 21 and a connecting portion 22. The insulating body 21 is disposed on one side of the top cover 1 and is used for insulation between the top cover 1 and the core package. The connecting portion 22 protrudes from the side of the insulating body 21 facing the top cover 1 and is fixed in the fixing hole 11.

[0062] Furthermore, the insulating component 2 is inserted into the fixing hole 11 of the top cover 1 through the connecting part 22 and fixed, which can improve the stability and reliability of the connection between the insulating component 2 and the top cover 1.

[0063] The technical solution of the embodiments of this application will now be described in terms of the number of connecting parts 22.

[0064] The number of connecting parts 22 can be one or at least two, and this application embodiment does not limit this. When the number of connecting parts 22 is at least two, at least two connections are formed between the insulating member 2 and the top cover 1, thereby improving the stability and reliability of the connection between the insulating member 2 and the top cover 1.

[0065] Please continue to refer to this. Figure 5 and Figure 6 For example, the number of connecting parts 22 is at least two, and the top cover assembly also includes a pole post 3, which passes through the top cover 1. Along the width direction of the top cover 1, each side of the pole post 3 is provided with a connecting part 22. Therefore, on each side of the pole post 3 along the width direction of the top cover 1, the insulating component 2 can form a stable and reliable connection through the connecting part 22.

[0066] For example, there are multiple connecting parts 22, and the top cover 1 has two long sides that extend along the length direction. Each long side is provided with multiple fixing holes 11 at intervals, and each fixing hole 11 is connected to a connecting part 22.

[0067] Furthermore, this ensures that the top cover 1 is reliably connected and fixed to the insulating component 2 on both sides in the width direction, and that the top cover 1 is reliably connected and fixed to the insulating component 2 at all points in the length direction.

[0068] The technical solution of the embodiments of this application will now be described in conjunction with the connection method between the connecting part 22 and the insulating body 21.

[0069] In some embodiments, the connecting portion 22 is integrally formed into the insulating body 21. Furthermore, compared to manufacturing the connecting portion 22 and the insulating body 21 separately, the connection strength between the connecting portion 22 and the insulating body 21 can be improved, and the assembly steps of the top cover assembly can be reduced during the assembly process.

[0070] like Figure 4 As shown, optionally, the insulating component 2 may also include a fastener 23, which is mounted and fixed to the insulating component body 21. One end of the fastener 23 protrudes from the insulating component body 21 on the side facing the top cover 1 to form at least a partial connection portion 22. Furthermore, different types of fasteners 23 can be reasonably selected for the connection between different models of insulating component bodies 21 and top cover 1 to improve the versatility of the insulating component body 21.

[0071] For example, the fastener 23 also includes a base plate 24, which abuts against the side of the insulating body 21 opposite to the top cover 1. The connecting part 22 is connected to the base plate 24 and passes through the insulating body 21, so that the connecting part 22 is snapped and fixed in the fixing hole 11. Furthermore, the base plate 24 and the top cover 1 can cooperate to clamp and fix the insulating body 21.

[0072] It should be noted that when there are multiple connecting parts 22, all connecting parts 22 may be integrally formed on the insulating body 21, all connecting parts 22 may be formed with fasteners 23, or some connecting parts 22 may be integrally formed on the insulating body 21 and some connecting parts 22 may be formed by fasteners 23. This application embodiment does not limit this.

[0073] The technical solution of the present application embodiment will now be described in conjunction with the method of fixing the connecting part 22 in the fixing hole 11.

[0074] In some embodiments, the connecting portion 22 is configured to be pressed into the fixing hole 11 by external mechanical force.

[0075] Furthermore, during the assembly process, compared to using screws as fasteners 23 to screw the insulating body 21 to the top cover 1, the present application embodiment can directly press the insulating component 2 to press the connecting part 22 into the fixing hole 11, thereby reducing the assembly steps of locking screws, so that the insulating component 2 has the advantage of easy installation.

[0076] Please continue to refer to this. Figure 7 For example, the connecting part 22 may include a plurality of snap fasteners 25, which are spaced apart circumferentially along the fixing hole 11.

[0077] When the insulating component 2 includes the fastener 23, the base plate 24 abuts against the side of the insulating component body 21 opposite to the top cover 1. A snap fastener 25 is connected to the base plate 24 and passes through the insulating component body 21, so that the snap fastener 25 is engaged and fixed within the fixing hole 11. Furthermore, the base plate 24 and the top cover 1 can cooperate to clamp and fix the insulating component body 21.

[0078] Please continue to refer to this. Figure 8 In some embodiments, the end of the connecting part 22 away from the insulating body 21 may be provided with a first guide slope 26. The first guide slope 26 is used to guide the connecting part 22 into the fixing hole 11 so that the connecting part 22 can be pressed into the fixing hole 11 more easily.

[0079] In some embodiments, the inner circumferential surface of the fixing hole 11 is provided with a second guide slope 12, which is used to guide the connecting part 22 into the fixing hole 11 so that the connecting part 22 can be pressed into the fixing hole 11 more easily.

[0080] One possible assembly method for the top cover assembly is as follows: First, the top cover 1 is formed by machining methods such as CNC (Computer Numerical Control) and stamping; then, the insulating body 21 and the connecting part 22 are formed by injection molding; next, the insulating body 21 is installed on one side of the top cover 1, and the connecting part 22 is pressed into the fixing hole 11 by mechanical force.

[0081] Optionally, the connecting part 22 can also be connected and fixed in the fixing hole 11 by heat fusion.

[0082] One possible assembly method for the top cover assembly is as follows: First, the top cover 1 is formed by machining methods such as CNC (Computer Numerical Control) and stamping; then, the insulating body 21 and the hot melt column are formed by injection molding; next, the insulating body 21 is installed onto the top cover 1, and the hot melt column is inserted into the fixing hole 11; finally, the hot melt column is heat-fused to form a connecting part 22, so that the insulating body 21 is fixed to the top cover 1 through the connecting part 22.

[0083] Of course, in some other embodiments, the connecting part 22 can also be fixed in the fixing hole 11 by ultrasonic welding, bonding or other means, and this application embodiment does not limit this.

[0084] The technical solutions of the embodiments of this application will now be described in conjunction with the shape of the connecting part 22.

[0085] Through the inventor's creative research, it was discovered that in some embodiments, the connecting part 22 can be a cylinder, which makes the connecting part 22 easy to process and low in cost.

[0086] However, the insulating component 2 is usually an injection-molded plastic part. The plastic is affected by the hot melt process parameters, mold forming process, materials and other issues, which can lead to problems such as the inability of the connecting part 22 to be hot melted, shrinkage, misalignment, and low overall tensile strength after hot melt. In addition, the cylindrical structure reduces the resistance of the connecting part 22 to circumferential forces, making it easy for rotation to cause the parts to loosen.

[0087] Based on this, in some embodiments, the cross-section of the connecting portion 22 is a non-circular structure, and the connecting portion 22 abuts against the inner circumferential surface of the fixing hole 11 to restrict the rotation of the connecting portion 22 within the fixing hole 11. Therefore, it can also be simply understood that the connecting portion 22 is a non-cylindrical structure to improve the torque bearing capacity of the connecting portion 22, thereby improving the situation where the connecting portion 22 easily rotates around the fixing hole 11 within the fixing hole 11.

[0088] Please continue to refer to this. Figure 9For example, the insulating body 21 is located on one side of the top cover 1 along the first direction H1, and the dimension of the connecting part 22 in the second direction H2 is larger than the dimension of the connecting part 22 in the third direction H3. The first direction H1, the second direction H2 and the third direction H3 are perpendicular to each other.

[0089] Therefore, the second direction H2 can be defined as the major axis direction of the connecting part 22, and the third direction H3 can be defined as the minor axis direction of the connecting part 22. Compared with the connecting part 22 adopting a cylindrical structure, the embodiment of this application can improve the bending / tensile strength of the connecting part 22 in the major axis direction.

[0090] For example, the cross-section of the connecting part 22 is elliptical or elongated to improve the bending / tensile strength of the connecting part 22 in the long axis direction.

[0091] Please combine them together Figure 4 and Figure 9 In some embodiments, the fixing hole 11 includes a first section 13 for accommodating the connecting portion 22, the cross-section of the first section 13 having the same cross-sectional shape as the connecting portion 22.

[0092] For example, the cross-section of the first segment 13 is also elliptical or elongated, so that the inner wall of the first segment 13 and the outer peripheral surface of the connecting part 22 can be interlocked to restrict the rotation of the connecting part 22, thereby improving the torque bearing capacity of the connecting part 22.

[0093] In some embodiments, the insulating component 2 further includes a limiting portion 27, which is connected to the end of the connecting portion 22 away from the insulating component body 21. The limiting portion 27 is engaged with the inner wall of the fixing hole 11 on the side surface facing the insulating component body 21. Thus, the limiting portion 27 can prevent the connecting portion 22 from exiting the fixing hole 11.

[0094] Correspondingly, the fixing hole 11 may also include a second section 14, with the first section 13 connected to the side of the second section 14 near the insulating body 21, and the limiting part 27 disposed in the second section 14.

[0095] For example, the cross-sectional area of ​​the second segment 14 can be larger than that of the first segment 13, so that a limiting step is formed at the connection between the second segment 14 and the first segment 13, thereby allowing the limiting part 27 to engage with the limiting step.

[0096] Taking the connection part 22 as an example of a hot melt column, the first segment 13 and the second segment 14 can guide the molten material formed during the hot melt process of the hot melt column to fill the two ends of the long axis of the connection part 22, so as to improve the situation of insufficient melting at the two ends of the short axis of the connection part 22, thereby improving the hot melt connection quality of the connection part 22.

[0097] like Figure 9 , Figure 10 and Figure 11 As shown, it can be understood that the cross-sectional area of ​​the limiting part 27 at each point along the direction from the top cover 1 toward the insulating body 21 can gradually increase, gradually decrease, or increase first and then decrease. This application embodiment does not limit this.

[0098] Please continue to refer to this. Figure 12 In some embodiments, the outer peripheral surface of the connecting part 22 is provided with an engagement structure 28, which engages with the inner peripheral surface of the fixing hole 11. The engagement structure 28 includes at least one of a threaded structure and a toothed structure.

[0099] That is to say, the engagement structure 28 may include only the threaded structure, or only the toothed structure, or both the threaded structure and the toothed structure. This application does not limit this.

[0100] One possible production method for the top cover assembly is as follows: First, the top cover 1 is formed by machining methods such as CNC (Computer Numerical Control) and stamping, so that the inner wall of the fixing hole 11 forms a threaded and / or toothed groove structure; then, the insulating body 21 and the hot melt column are formed by injection molding; next, the insulating body 21 is installed onto the top cover 1 and the hot melt column is inserted into the fixing hole 11; finally, the hot melt column is formed into a connecting part 22 by hot melting, so that the outer periphery of the connecting part 22 forms an interlocking structure 28 filled in the groove structure, and finally the insulating body 21 is fixed to the top cover 1 through the connecting part 22.

[0101] Furthermore, the interlocking structure 28 can improve the axial peel resistance of the connection part 22, thereby improving the stability of the installation of the insulating component 2, and also improve the sealing effect of the fixing hole 11.

[0102] It should be noted that when the outer peripheral surface of the connecting part 22 is provided with the interlocking structure 28, the cross-section of the connecting part 22 can be a circular structure, or a non-circular structure such as a strip or an ellipse. This application embodiment does not limit this.

[0103] It is also understood that the tooth-like structure may include ratchet structure, serrated structure, etc., and the embodiments of this application do not limit this.

[0104] Please continue to refer to this. Figure 13 In some embodiments, the cross-section of the connecting part 22 is a polygonal or cross-shaped structure.

[0105] Furthermore, the resistance of the connecting part 22 to circumferential force can be improved, and when the connecting part 22 is subjected to rotational force or torsional load, the connecting part 22 can be effectively prevented from rotating circumferentially along the fixing hole 11.

[0106] Furthermore, taking the cross-section of the connecting part 22 as an example, the cross-section of the first section 13 of the fixing hole 11 can also be cross-shaped, which can further improve the assembly accuracy of the connecting part 22 in the circumferential direction of the fixing hole 11, and increase the mating area between the outer peripheral surface of the connecting part 22 and the outer peripheral surface of the fixing hole 11, thereby improving the stability of the installation of the connecting part 22.

[0107] In some embodiments, the limiting part 27 can be circular, and the connecting part 22 connects the limiting part 27 and the insulating body 21. Then, when the cross-section of the first segment 13 of the fixing hole 11 is also cross-shaped, the first segment 13 can restrict the limiting part 27 from disengaging from the fixing hole 11, so that the connecting part 22 is fixed in the fixing hole 11.

[0108] For example, the fixing hole 11 includes a first segment 13 and a second segment 14. The first segment 13 is connected to the side of the second segment 14 near the insulating body 21. The limiting part 27 is disposed in the second segment 14. The cross-section of the first segment 13 is different from the cross-section of the limiting part 27 so that the limiting part 27 is engaged in the second segment 14.

[0109] Correspondingly, the cross-section of the first segment 13 has the same shape as the cross-section of the connecting part 22.

[0110] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0111] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0112] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0113] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A cap assembly, characterized by, include: Top cover (1), the top cover (1) being provided with fixing holes (11); and, An insulating component (2) is provided, comprising an insulating body (21) and a connecting portion (22). The insulating body (21) is disposed on one side of the top cover (1) and is used for insulation between the top cover (1) and the core package. The connecting portion (22) protrudes from the side of the insulating body (21) facing the top cover (1) and is fixed in the fixing hole (11).

2. The roof assembly of claim 1, wherein, The cross-section of the connecting part (22) is non-circular. The connecting part (22) abuts against the inner circumferential surface of the fixing hole (11) to restrict the rotation of the connecting part (22) within the fixing hole (11).

3. The roof assembly of claim 2, wherein, The insulating body (21) is located on one side of the top cover (1) along the first direction (H1), and the dimension of the connecting part (22) in the second direction (H2) is larger than the dimension of the connecting part (22) in the third direction (H3). The first direction (H1), the second direction (H2) and the third direction (H3) are perpendicular to each other.

4. The top cover assembly according to claim 3, characterized in that, The cross-section of the connecting part (22) is elliptical or elongated.

5. The roof assembly of claim 4, wherein, The fixing hole (11) includes a first section (13) for accommodating the connecting part (22), the cross-section of the first section (13) having the same cross-sectional shape as the connecting part (22).

6. The roof assembly of claim 4, wherein, The insulating component (2) further includes a limiting part (27), which is connected to one end of the connecting part (22) away from the insulating body (21), and the limiting part (27) has its side surface facing the insulating body (21) engaged with the inner wall of the fixing hole (11); or, The outer peripheral surface of the connecting part (22) is provided with an engagement structure (28), which engages with the inner peripheral surface of the fixing hole (11). The engagement structure (28) includes at least one of a threaded structure and a toothed structure.

7. The roof assembly of claim 2, wherein, The cross-section of the connecting part (22) is a polygonal or cross-shaped structure; and / or, The insulating component (2) further includes a limiting part (27), which is connected to one end of the connecting part (22) away from the insulating body (21). The limiting part (27) is engaged with the inner wall of the fixing hole (11) on one side surface facing the insulating body (21).

8. The top cover assembly according to claim 7, characterized in that, When the insulating component (2) further includes the limiting part (27), the fixing hole (11) includes a first section (13) and a second section (14), the first section (13) is connected to the side of the second section (14) near the insulating body (21), the limiting part (27) is disposed in the second section (14), and the cross-section of the first section (13) is different from the cross-section of the limiting part (27) so that the limiting part (27) is engaged in the second section (14).

9. The roof assembly of claim 8, wherein, The cross-section of the first segment (13) has the same shape as the cross-section of the connecting part (22).

10. The roof assembly of claim 1, wherein, The outer peripheral surface of the connecting part (22) is provided with an engagement structure (28), which engages with the inner peripheral surface of the fixing hole (11). The engagement structure (28) includes at least one of a threaded structure and a toothed structure.

11. The roof assembly of any one of claims 1 to 10, wherein, The connecting part (22) is connected and fixed in the fixing hole (11) by heat fusion.

12. The roof assembly of any one of claims 1 to 10, wherein, At least a portion of the connecting portion (22) is integrally formed into the insulating body (21); and / or, The insulating component (2) further includes a fastener (23) which is fixed to the insulating body (21). One end of the fastener (23) protrudes from the insulating body (21) toward the top cover (1) to form at least part of the connection portion (22).

13. The roof assembly of any one of claims 1 to 10, wherein, The number of connecting parts (22) is at least two, and the top cover assembly also includes a pole post (3) that passes through the top cover (1). Along the width direction of the top cover (1), each side of the pole post (3) is provided with a connecting part (22); and / or, The number of the connecting parts (22) is multiple, and the top cover (1) has two long sides extending along the length direction. Each of the long sides is provided with multiple fixing holes (11) at intervals, and each fixing hole (11) is connected to the connecting part (22).

Images