Novel power battery top cover
By setting up an inverted slot on the pole post of the battery cover and using fasteners to achieve mechanical snap connection, the problem of welding instability is solved, the connection strength and production efficiency are improved, the cost is reduced, and the battery safety is improved Sex and stability.
Patent Information
- Application Number
- CN202323332183.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-07
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2033-12-07
AI Technical Summary
The welding process of existing battery ceilings is unstable, and problems such as welding holes, fire explosions, false welding, and welding deviation often occur, resulting in low production yield and high cost.
The mechanical snap connection method is used instead of the traditional welding process. By setting up an inverted groove structure in the pole column and using fasteners to clamp it in the inverted groove, the mechanical snap connection of the pole column is realized, combining the sealing ring and insulating material design. Improve connection strength and stability.
Absent abnormal phenomena such as welding holes, fire explosions, and false welding are avoided, production yield and product quality are improved, production costs are reduced, and the safety and durability of the battery are enhanced.
Smart Images
Figure CN222320460U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of batteries, and in particular to a novel power battery top cover. Background Art
[0002] At present, most battery top cover poles on the market usually require welding to achieve pole connection. Although the welding process is highly efficient, it is unstable and often results in various poor welding conditions, such as weld holes, explosions, cold welds, and weld deviations. These problems result in low production yields and high costs, which seriously affect the efficiency and cost-effectiveness of battery manufacturing. Utility Model Content
[0003] In view of this, the utility model provides a new type of power battery top cover, in which the pole adopts a mechanical snap-on connection method instead of the traditional welding process, which can improve the connection strength of the pole, avoid the occurrence of abnormal phenomena such as weld holes, fire, cold welding, and welding deviation, improve production yield, reduce production costs, and improve product quality.
[0004] The purpose of the utility model is achieved through the following technical solutions:
[0005] A novel power battery top cover comprises a top cover sheet, a pole, a sealing ring and a snap-fit piece, wherein the top cover sheet is provided with a mounting hole; the pole is passed through the mounting hole, and a reverse groove is dug on the side of the pole; the sealing ring is sleeved outside the pole to seal the gap between the pole and the mounting hole; the snap-fit piece is clamped in the reverse groove to fix the pole to the top cover sheet.
[0006] The pole adopts a mechanical snap-on connection method instead of the traditional welding process. By setting a reverse groove structure on the pole, and then using the snap-on piece to snap into the reverse groove of the pole, the mechanical snap-on connection of the pole is realized. The pole and the sealing ring are sequentially installed into the mounting hole, and the snap-on piece is snapped into the reverse groove to complete the assembly connection of the pole. The connection strength of the pole can be improved, and the occurrence of abnormal phenomena such as welding holes, explosions, cold welding, and welding deviation can be avoided, thereby improving the production yield, reducing production costs, and improving product quality.
[0007] Preferably, the buckle has a circular ring shape.
[0008] The ring-shaped shape enables it to be evenly snapped into the undercut groove of the pole, ensuring the stability and firmness of the pole connection.
[0009] Preferably, the snap fastener is made of insulating material.
[0010] The current can be prevented from directly contacting the top cover sheet, thereby ensuring the safety of the battery. At the same time, the insulating material also has good wear resistance and corrosion resistance, which can extend the service life of the buckle.
[0011] Preferably, the snap-fitting member comprises a first insulating member and a second insulating member which are snapped into the undercut groove to fix the pole to the top cover sheet.
[0012] The design of the first insulating member and the second insulating member enables the buckle member to be more firmly fixed in the undercut groove, further improving the connection strength of the pole.
[0013] Preferably, the first insulating member and the second insulating member are snap-connected.
[0014] The first insulating member and the second insulating member are connected by snapping, which is easy to operate and can improve production efficiency. At the same time, the snapping connection method also makes the first insulating member and the second insulating member fit more closely, which can better play the role of insulation and protection.
[0015] Preferably, the two ends of the first insulating member are respectively provided with a first latching protrusion and a first latching groove, and the two ends of the second insulating member are respectively provided with a second latching protrusion matched with the first latching groove, and a second latching groove matched with the first latching protrusion.
[0016] The matching structure of the latching protrusion and the latching groove enables the first insulating member and the second insulating member to be snap-connected together more stably, thereby improving the stability and durability of the entire snap-fit member.
[0017] Preferably, it further comprises a lower plastic part, and the lower plastic part is located below the top cover sheet.
[0018] The design of the lower plastic part increases the overall strength and stability of the battery cover, allowing the cover to be more firmly fixed on the top of the battery. At the same time, the lower plastic part can also play a role in shockproofing and buffering, which can effectively reduce the impact of external shocks on the battery.
[0019] Preferably, the lower plastic part is provided with a mounting through hole and a limiting slot, the limiting slot is located at the periphery of the mounting through hole, the bottom of the pole is connected to a limiting epitaxial plate, and the limiting epitaxial plate is installed in the limiting slot.
[0020] This allows the pole to be more stably connected to the lower plastic part, preventing the pole from shaking or shifting during battery operation, further improving the safety and stability of the battery.
[0021] Preferably, the undercut groove is located in the middle section of the side of the pole.
[0022] The buckle can be fixed on the pole more stably, improving the connection strength and stability of the pole. At the same time, since the undercut groove is arranged in the middle of the side of the pole, the assembly of the pole inside the battery is more convenient and flexible.
[0023] Preferably, the top cover sheet is also connected to an explosion-proof sheet.
[0024] The explosion-proof plate increases the safety of the battery. When the internal pressure of the battery is too high, the explosion-proof plate can automatically rupture to release the pressure, avoiding dangerous situations such as battery explosion. At the same time, the explosion-proof plate can also filter impurities and protect the poles, further improving the performance and life of the battery.
[0025] Compared with the prior art, the utility model has the following beneficial effects:
[0026] The new power battery top cover of the utility model adopts a mechanical snap-on connection method for the pole instead of the traditional welding process. By arranging a reverse buckle groove structure on the pole, and then using a snap-on piece to snap into the reverse buckle groove of the pole, the mechanical snap-on connection of the pole is realized. The pole and the sealing ring are sequentially installed into the mounting hole, and the snap-on piece is snap-on into the reverse buckle groove to complete the assembly connection of the pole, which can improve the connection strength of the pole, avoid the occurrence of abnormal phenomena such as welding holes, explosions, cold welding, and welding deviation, improve the production yield, reduce production costs, and improve product quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0028] Figure 1 This is an exploded view of a new power battery top cover according to an embodiment of the utility model.
[0029] Figure 2 This is a structural diagram of a new power battery top cover according to an embodiment of the utility model.
[0030] Figure 3 This is a top view of a new power battery top cover according to an embodiment of the utility model.
[0031] Figure 4 for Figure 3 Magnified view of area A.
[0032] Figure 5 It is a side cross-sectional view of a novel power battery top cover according to an embodiment of the utility model.
[0033] Figure 6 for Figure 5 Magnified view of area B.
[0034] Figure 7 This is a structural diagram of a pole according to an embodiment of the utility model.
[0035] Figure 8 This is a structural diagram of the first insulating member of an embodiment of the utility model. DETAILED DESCRIPTION
[0036] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.
[0037] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.
[0038] It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the embodiments of the present application, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the application product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.
[0039] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.
[0040] The technical solution in this application will be described below in conjunction with the accompanying drawings.
[0041] The present embodiment provides a novel power battery top cover, including a top cover sheet 10, a pole 20, a sealing ring 30 and a fastener 40. The top cover sheet 10 is provided with a mounting hole 11; the pole 20 is passed through the mounting hole 11, and a reverse groove 21 is dug on the side of the pole 20; the sealing ring 30 is sleeved outside the pole 20 to seal the gap between the pole 20 and the mounting hole 11; the fastener 40 is clamped in the reverse groove 21 to fix the pole 20 to the top cover sheet 10.
[0042] The pole 20 adopts a mechanical snap connection method to replace the traditional welding process. By setting a reverse buckle groove 21 structure on the pole 20, and then using the snap-fit member 40 to snap into the reverse buckle groove 21 of the pole 20, the mechanical snap-fit connection of the pole 20 is realized. The pole 20 and the sealing ring 30 are sequentially installed into the mounting hole 11, and the snap-fit member 40 is snap-fitted into the reverse buckle groove 21, and the assembly connection of the pole 20 is completed, which can improve the connection strength of the pole 20, avoid the occurrence of abnormal phenomena such as welding holes, explosions, cold welding, welding deviation, etc., improve the production yield, reduce production costs, and improve product quality.
[0043] In this embodiment, the buckle member 40 has a circular ring shape.
[0044] The outer shape is annular, so that it can be evenly clamped in the undercut groove 21 of the pole 20, ensuring the stability and firmness of the connection of the pole 20.
[0045] In this embodiment, the buckle member 40 is made of insulating material.
[0046] The current can be prevented from directly contacting the top cover sheet 10 , thereby ensuring the safety of the battery. At the same time, the insulating material also has good wear resistance and corrosion resistance, which can extend the service life of the buckle 40 .
[0047] In this embodiment, the locking member 40 includes a first insulating member 41 and a second insulating member 42 that are locked in the undercut groove 21 to fix the pole 20 to the top cover plate 10 .
[0048] The design of the first insulating member 41 and the second insulating member 42 enables the buckle member 40 to be more firmly fixed in the undercut groove 21 , further improving the connection strength of the pole 20 .
[0049] In this embodiment, the first insulating member 41 and the second insulating member 42 are snap-connected.
[0050] The first insulating member 41 and the second insulating member 42 are connected by snapping, which is easy to operate and can improve production efficiency. At the same time, the snapping connection method also makes the first insulating member 41 and the second insulating member 42 fit more closely, which can better play the role of insulation and protection.
[0051] In this embodiment, the first insulating member 41 has first latching protrusions 411 and first latching grooves 412 at both ends, and the second insulating member 42 has second latching protrusions 421 cooperating with the first latching grooves 412 and second latching grooves 422 cooperating with the first latching protrusions 411 at both ends.
[0052] The matching structure of the latching protrusion and the latching groove enables the first insulating member 41 and the second insulating member 42 to be snap-connected together more stably, thereby improving the stability and durability of the entire snap-fit member.
[0053] In this embodiment, a lower plastic component 50 is further included. The lower plastic component 50 is located below the top cover sheet 10 .
[0054] The design of the lower plastic part 50 increases the overall strength and stability of the battery top cover, so that the top cover sheet 10 can be more firmly fixed on the top of the battery. At the same time, the lower plastic part 50 can also play a role in shockproof and buffering, which can effectively reduce the impact of external impact on the battery.
[0055] In this embodiment, the lower plastic part 50 is provided with a mounting through hole 51 and a limiting slot 52 . The limiting slot 52 is located at the periphery of the mounting through hole 51 . The bottom of the pole 20 is connected to the limiting extension plate 22 , and the limiting extension plate 22 is installed in the limiting slot 52 .
[0056] This enables the pole 20 to be more stably connected to the lower plastic part 50 , preventing the pole 20 from shaking or shifting during battery operation, and further improving the safety and stability of the battery.
[0057] In this embodiment, the undercut groove 21 is located in the middle section of the side of the pole 20 .
[0058] The buckle 40 can be fixed on the pole 20 more stably, improving the connection strength and stability of the pole 20. At the same time, since the undercut groove 21 is arranged in the middle section of the side of the pole 20, the assembly of the pole 20 inside the battery is more convenient and flexible.
[0059] In this embodiment, the top cover sheet 10 is also connected to a burst-proof sheet 60 .
[0060] The explosion-proof plate 60 increases the safety of the battery. When the internal pressure of the battery is too high, the explosion-proof plate 60 can automatically rupture to release the pressure, thereby avoiding dangerous situations such as battery explosion. At the same time, the explosion-proof plate 60 can also filter impurities and protect the pole 20, further improving the performance and life of the battery.
[0061] The new power battery top cover of the present embodiment adopts a mechanical snap-on connection method for the pole instead of the traditional welding process. By setting a reverse groove structure on the pole, and then using a snap-on piece to snap into the reverse groove of the pole, the mechanical snap-on connection of the pole is achieved. The pole and the sealing ring are sequentially installed into the mounting hole, and the snap-on piece is snapped into the reverse groove to complete the assembly connection of the pole, which can improve the connection strength of the pole, avoid the occurrence of abnormal phenomena such as welding holes, explosions, cold welding, and welding deviation, improve production yield, reduce production costs, and improve product quality.
[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art 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 appended claims and their equivalents.
Claims
1. A new type of power battery top cover, characterized in that: include A top cover sheet, wherein the top cover sheet is provided with a mounting hole; A pole, the pole is passed through the mounting hole, and a side of the pole is dug with an undercut groove; A sealing ring, which is sleeved outside the pole and is used to seal the gap between the pole and the mounting hole; A snap fastener is snapped into the undercut groove to fix the pole to the top cover sheet.
2. The novel power battery top cover according to claim 1 is characterized in that: The buckle part has a circular ring shape.
3. The new power battery top cover according to claim 1 is characterized in that: The buckle piece is made of insulating material.
4. The novel power battery top cover according to claim 1 is characterized in that: The buckle comprises a first insulating member and a second insulating member which are clamped in the undercut groove to fix the pole to the top cover sheet.
5. The novel power battery top cover according to claim 4 is characterized in that: The first insulating member and the second insulating member are snap-connected.
6. The novel power battery top cover according to claim 5 is characterized in that: The two ends of the first insulating member are respectively provided with a first clamping protrusion and a first clamping groove, and the two ends of the second insulating member are respectively provided with a second clamping protrusion matched with the first clamping groove and a second clamping groove matched with the first clamping protrusion.
7. The novel power battery top cover according to claim 1 is characterized in that: It also includes a lower plastic piece, which is located below the top cover sheet.
8. The novel power battery top cover according to claim 7 is characterized in that: The lower plastic part is provided with a mounting through hole and a limiting slot, the limiting slot is located at the periphery of the mounting through hole, the bottom of the pole is connected to a limiting epitaxial plate, and the limiting epitaxial plate is installed in the limiting slot.
9. The novel power battery top cover according to claim 1 is characterized in that: The undercut groove is located in the middle section of the side of the pole.
10. The novel power battery top cover according to claim 1 is characterized in that: The top cover piece is also connected with an explosion-proof piece.