CN208173639U - A kind of battery cover board assembly - Google Patents

Abstract

The utility model discloses a kind of battery cover board assemblies, including：It is provided with the cover board, pole and the tab being electrically connected with the pole of pole providing holes；Wherein, the tab includes：The protrusion being electrically connected with the pole, setting is in the outwardly extending disk body of the raised lower edge, the first tab item and the second tab item on the disk body both ends are set, and the disk body, the first tab item and the second tab item make the tab form I-shaped structure.The utility model passes through the protrusion and disk body on tab, disk body, which connects two tab items, makes tab form I-shaped structure, tab connects collector and pole, there are four extension ends for I-shaped tab, it is effective to concentrate electric current, and improve and the electric current of pole exported, have structure simple, it is easy to produce with promoting the advantages of.

Description

A kind of battery cover board assembly

Technical field

The utility model relates to battery apparatus field more particularly to a kind of battery cover board assemblies.

Background technique

It is increasingly developed with electronic product, battery with more and more extensive because the miniaturization of electronic product with just Taking needs a kind of stable and convenient power supply.And battery is just simply easy to carry because of its structure, the electrically operated letter of charge and discharge Just, it is not influenced by outside climatic and temperature, stable and reliable for performance, the various aspects in the social life of modernization play Very big effect.Battery cap includes cover plate and pole and tab, and the quality of top cover directly affects the performance of battery.

Exit of the tab as positive and negative anodes, undertakes the effect of current lead-through between external electrode, and existing tab is adopted mostly With the tab widened or multipole ear structure is used, and the material of tab and length all will seriously affect battery, thicken and add The welding of wide extreme ear structure and pole becomes difficult and is difficult to guarantee the consistency of welding, under the effect for making tab extracted current Drop, and not enough concentrate.

Utility model content

The purpose of this utility model is in view of the above-mentioned drawbacks of the prior art, providing a kind of battery cover board assembly.

The technical solution adopted in the utility model be design a kind of battery cover board assembly, including：It is provided with pole providing holes Cover board, pole and with the pole be electrically connected tab；Wherein, the tab includes：It is electrically connected with the pole Protrusion, setting in the raised outwardly extending disk body of lower edge, be arranged in the first tab item on the disk body both ends and Second tab item, the disk body, the first tab item and the second tab item make the tab form I-shaped structure.

Preferably, the first through slot and the second through slot are provided in the middle part of the first tab item and the second tab item.Institute State the first through slot and second through slot can when electric current is excessive, make the first tab item and the second tab item fuse, Play the role of protecting battery.

Preferably, the protrusion includes：The side plate bending and planar section being erected on the disk body are arranged in the side plate bending And the connecting plate being electrically connected with the pole above the planar section.The planar section plays the role of preventing rotation, institute Connecting plate is stated to be used for electrical conduction to the pole, since the side plate bending connects two planar sections, the protrusion Hard corner structure is not present in periphery, keeps the periphery wall thickness of the protrusion uniform, electric conducting effect is more preferable.

Preferably, the side plate bending, the planar section and the connecting plate are integrally formed.Integrated molding can make structure It is more stable with performance, while reducing production stage, moreover it is possible to keep stable conductibility.

Preferably, the first tab item and described second tab item, 4 angles are rounded structure.Rounded structure makes pole Ear is easily installed.

Preferably, the first tab item and the second tab item are being rounded structure with the junction of the disk body. Junction is rounded structure, and rounded structure is convenient for grinding process in process of production, and rounded structure is located at junction, forms one Reinforcing rib structure plays booster action to junction.

Preferably, the protrusion, the disk body, the first tab item and the second tab item are integrally formed.One It is body formed to avoid the problem of welding bring weld seam influences conductive performance.

Preferably, positioning convex platform is arranged in the pole providing holes inner circumferential.The positioning convex platform is for limiting the pole Position makes the pole fix more stable.

Preferably, the positioning convex platform protrudes from the upper surface and the lower surface of the cover board.The positioning convex platform protrudes from The part of the cover board upper surface is used to support the pole, prevents the pole from falling；The positioning convex platform protrudes from described The part of cover board lower surface is for connecting the disk body.

Preferably, the connecting plate upper surface and the pole lower surface are electrically connected in the positioning convex platform.It is described The connection sheet of connecting plate and the pole is located in the positioning convex platform, and the planar section also equally is located at the positioning convex platform In, the tab can be effectively prevented and rotate.

Compared with prior art, the utility model at least has the advantages that：The utility model passes through on tab Protrusion and disk body, disk body, which connects two tab items, makes tab form I-shaped structure, and tab connects collector and pole, I-shaped Tab effectively concentrate electric current there are four extension end, and improve and the electric current of pole exported, have structure simple, convenient for life The advantages of producing with promoting.

Detailed description of the invention

Fig. 1 is the schematic diagram of the section structure of the utility model embodiment；

Fig. 2 is the lower view schematic diagram of the utility model embodiment；

Fig. 3 is the extreme ear structure schematic diagram of the utility model embodiment；

Fig. 4 is the extreme ear structure A-A diagrammatic cross-section of the utility model embodiment；

Fig. 5 is the extreme ear structure B-B diagrammatic cross-section of the utility model embodiment；

Fig. 6 is the extreme ear structure normal axomometric drawing of the utility model embodiment.

In figure：1, cover board；2, pole；3, tab；31, raised；311, planar section；312, side plate bending；313, connecting plate； 32, disk body；33, the first tab item；34, the first through slot；35, the second tab item；36, the second through slot；4, pole providing holes.

Specific embodiment

The utility model is described further with reference to the accompanying drawings and examples.

As shown in figures 1 to 6, the utility model proposes a kind of battery cover board assemblies, including：It is provided with pole providing holes 4 Cover board 1, pole 2 and with the pole 2 be electrically connected tab 3；Wherein, the tab 3 includes：With 2 electricity of pole Property connection protrusion 31, setting is in the raised outwardly extending disk body 32 of 31 lower edge, and setting is on 32 both ends of disk body The first tab item 33 and the second tab item 35, the disk body 32, the first tab item 33 and the second tab item 35 make The tab 3 forms I-shaped structure.

Protrusion 31 and disk body 32 on the tab 3, disk body 32, which connects two tab items, makes tab form I-shaped structure, Tab 3 connects collector and pole 2, and I-shaped tab 3 effectively concentrates electric current there are four extension end, and improves to pole Electric current output.

In the utility model embodiment, first is provided in the middle part of the first tab item 33 and the second tab item 35 Through slot 34 and the second through slot 36.First through slot 34 can make described first when electric current is excessive with second through slot 36 Tab item 33 and the second tab item 35 fuse, play the role of protect battery.

Further, the disk body 32 connects the middle part of the first tab item 33 and the second tab item 35, described Disk body 32 and the first tab item 33 and the second tab item 35 are connect with a collector, and the electrical conduction on collector is arrived On the pole 2.

In the utility model embodiment, described raised 31 include：The side plate bending 312 that is erected on the disk body 32 and flat The connecting plate of 311 top of the side plate bending 312 and the planar section being electrically connected with the pole 2 is arranged in face section 311 313.The planar section 311 plays the role of preventing rotation, and the connecting plate 313 is used for electrical conduction to the pole 2, by Two planar sections 311 are connected in the side plate bending 312, therefore hard corner structure is not present in raised 31 periphery, made described The periphery wall thickness of protrusion 31 is uniform, and electric conducting effect is more preferable.

In the utility model embodiment, the side plate bending 312, the planar section 311 and the connecting plate 313 are integrated Molding.Integrated molding can make structure and performance more stable, while reducing production stage, moreover it is possible to keep stable conduction Property.

Further, the planar section 311 and the tangent connection of the side plate bending 312, the planar section 311 and the cambered surface 312 junction gentle transitions of section, keep the conduction of electricity more stable.

Further, the connecting plate 313 and the planar section 311 and 312 junction of the side plate bending are rounded structure, Rounded structure can make the connecting plate 313 and the planar section 311, the connection of the connecting plate 313 and the side plate bending 312 Locate gentle transition, reinforces the stability of conduction.

In the utility model embodiment, 4 angles of the first tab item 33 and the second tab item 35 are fillet Structure.Rounded structure is easily installed tab 3, meanwhile, the rounded structure can form fluid-filling structure, accelerate electrolyte Injection.

In the utility model embodiment, the first tab item 33 and the second tab item 35 with the disk body 32 Junction be rounded structure.Junction is rounded structure, and rounded structure is convenient for grinding process, and fillet knot in process of production Structure is located at junction, forms a reinforcing rib structure, plays booster action to junction.

Further, the rounded structure of two junctions of described 32 the same side of disk body is connected by a changeover portion, makes to collect The electricity of fluid collects on the disk body 32.

In the utility model embodiment, described raised 31, the disk body 32, the first tab item 33 and described second Tab item 35 is integrally formed.Integrated molding avoids the problem of welding bring weld seam influences conductive performance.

In the utility model embodiment, positioning convex platform is arranged in 4 inner circumferential of pole providing holes.The positioning convex platform is used for The position for limiting the pole 2 makes the pole 2 fix more stable.

Further, be provided with below the pole 2 with the positioning convex platform be adapted location structure, with it is described fixed Position boss, which matches, positions the pole 2, while being easily installed, it is therefore prevented that the pole 2 is arranged in the pole It shakes to make to be electrically connected in hole 4 and fail.

In the utility model embodiment, the positioning convex platform protrudes from the upper surface and the lower surface of the cover board 1.It is described The part that positioning convex platform protrudes from 1 upper surface of cover board is used to support the pole 2, prevents the pole 2 from falling；It is described fixed Position boss protrudes from the part of 1 lower surface of cover board for connecting the disk body 32.

Further, 2 periphery of pole is provided with support ring body, to cooperate the pole 2 of the positioning convex platform support, Prevent the pole 2 from falling into inside battery, meanwhile, the support ring body provides pressure for the sealing of the pole 2, adds The strong effect of sealing prevents the pole shaking from making to be electrically connected and fail with the cooperation of pole fixation kit.

In the utility model embodiment, 313 upper surface of connecting plate and 2 lower surface of pole are electrically connected at institute It states in positioning convex platform.The connection sheet of the connecting plate 313 and the pole 2 is located in the positioning convex platform, the planar section 311 It also equally is located in the positioning convex platform, the tab 3 can be effectively prevented and rotate.

Specifically, 313 upper surface of connecting plate and the location structure lower surface of the pole 2 be electrically connected at it is described fixed In the boss of position.

Above-described embodiment is merely to illustrate specific embodiment of the present utility model.It should be pointed out that for this field Those of ordinary skill for, without departing from the concept of the premise utility, several deformations and variation can also be made, this A little deformations and variation all should belong to the protection scope of the utility model.

Claims (10)

1. a kind of battery cover board assembly, which is characterized in that including：Be provided with the cover board of pole providing holes, pole and with it is described The tab that pole is electrically connected；

Wherein, the tab includes：The protrusion being electrically connected with the pole, setting are outwardly extending in the raised lower edge The first tab item and the second tab item on the disk body both ends, the disk body, the first tab item and institute is arranged in disk body Stating the second tab item makes the tab form I-shaped structure.

2. battery cover board assembly as described in claim 1, which is characterized in that the first tab item and the second tab item Middle part is provided with the first through slot and the second through slot.

3. battery cover board assembly as described in claim 1, which is characterized in that the protrusion includes：It is erected on the disk body Side plate bending and planar section, the connection being electrically connected with the pole above the side plate bending and the planar section is set Plate.

4. battery cover board assembly as claimed in claim 3, which is characterized in that the side plate bending, the planar section and the company Fishplate bar is integrally formed.

5. battery cover board assembly as described in claim 1, which is characterized in that the first tab item and the second tab item 4 angles are rounded structure.

6. battery cover board assembly as claimed in claim 5, which is characterized in that the first tab item and the second tab item It is being rounded structure with the junction of the disk body.

7. battery cover board assembly as described in claim 1, which is characterized in that the protrusion, the disk body, first tab Item and the second tab item are integrally formed.

8. battery cover board assembly as described in claim 1, which is characterized in that convex is arranged in the pole providing holes inner circumferential Platform.

9. battery cover board assembly as claimed in claim 8, which is characterized in that the positioning convex platform protrudes from the upper of the cover board Surface and lower surface.

10. battery cover board assembly as claimed in claim 9, which is characterized in that under the connecting plate upper surface and the pole Surface electrical behavior is connected in the positioning convex platform.