CN204303920U - Battery core and battery pack using same - Google Patents

Abstract

The utility model discloses a battery core and use its group battery, wherein the battery core, including a plurality of center pieces, a plurality of utmost point book, an at least first electrically conductive handle and first terminal. Each center piece includes a first conductive portion, a second conductive portion, and an insulating portion. The first conductive parts and the second conductive parts are arranged on two opposite sides of the insulating parts. The plurality of pole rolls are respectively wound on the plurality of central sheets. Each of the electrode rolls includes a first electrode and a second electrode. Each first electrode is electrically connected to each first conductive part. The plurality of first conductive parts are metal-welded on the at least one first conductive handle. The first terminals are electrically connected to the first conductive parts. The battery pack comprises the battery core, a shell for accommodating the battery core, an insulating ring penetrated by the first terminal, a squeezing ring, an insulating sheet, an end cover and a fixing piece fixedly arranged on the first terminal.

Description

Battery and use its battery pack

Technical field

The utility model is about a kind of battery and the battery pack using it, relates to a kind of battery pack providing big current and high-power battery and use it especially.

Background technology

In electronic installation now, the kind of portable electronic devices is more and more many.These portable electronic devices, little of intelligent mobile phone, flat computer and notebook computer, greatly to devices such as electric motor cars, all need the power supply that the assemblies such as battery provide electronic installation to operate.In various battery, although the primary cell that cannot charge is easy to obtain, environmental protection not.Therefore, repeatedly can carry out the development of the secondary cell charged, just day by day flourishing to get up.

Can provide in big current and high-power secondary cell at present, the inner assembly mode that often needs to lock is fixed to one another.But when the assembly of inside battery is in time operating, often have the situation expanding or shrink.Merely with the intraware of the mode self-contained battery of locking, be often subject to the impact of the expansion of inner original paper or contraction and cause electric connection bad.In addition, merely with the intraware of mode self-contained battery of locking, the impact be also easily given a shock and getting loose.

Utility model content

The utility model proposes a kind of battery and use its battery pack, to promote the electric connection characteristic of intraware.

The utility model proposes a kind of battery, comprise multiple centre slice, multiple pole volume, at least one first conduction handle and the first terminal.Each centre slice comprises the first conductive part, the second conductive part and insulation division.Each first conductive part and each second conductive part are arranged at the relative both sides of each insulation division.Multiple poles volume is wound in multiple centre slice respectively.Each pole volume comprises the first electrode and the second electrode.Each first electrode is electrically connected at each first conductive part.Multiple first conductive part metal solder is at least one first conduction handle.The first terminal is electrically connected at multiple first conductive part.

The utility model proposes a kind of battery pack in addition, comprises battery as above, shell, dead ring, extrusion ring, insulating trip, end cap and fixture.The first terminal of battery comprises the base portion that is connected with each other and wears portion.Base portion is electrically connected at multiple first conductive part.The portion of wearing is arranged at the side that base portion is away from multiple first conductive part.Shell has accommodation space and opening.Battery is placed in accommodation space.The first terminal is positioned at opening, and the portion that wears is from base portion towards the extension of accommodation space.Dead ring is arranged at the base portion of the first terminal and dead ring is run through in the portion of wearing of the first terminal.Extrusion ring is stacked over dead ring and extrusion ring is run through in the portion of wearing.The hardness of extrusion ring is greater than the hardness of dead ring.Insulating trip is stacked over extrusion ring and insulating trip is run through in the portion of wearing.The hardness of insulating trip is less than the hardness of extrusion ring.End cap is stacked over insulating trip and end cap is run through in the portion of wearing.Fixture is stacked over end cap and is fixedly arranged on the portion of wearing.

According to battery of the present utility model and the battery pack using it, can by the first conductive part and the first conduction handle being electrically connected centre slice in metal solder mode, to increase the stability of the electric connection between the first conductive part and the first conduction handle, and pole can be avoided to roll up expansion occurred in use or contraction cause electric connection negative effect between the first conductive part and the first conduction handle, battery or battery pack also can be avoided to be given a shock or external impacts time cause electric connection negative effect between the first conductive part and the first conduction handle.In addition, the mode of the base portion of the first terminal, dead ring, extrusion ring, insulating trip and end cap sequentially storehouse, in fixture be fixedly arranged on wear portion time, extrusion ring can be absorbed in dead ring and insulating trip by whole circle, so to make within end cap and outside form airtight isolated state.Dead ring is subject to the strength of vertical compressing but not is reversed, therefore can extend its useful life.Assembling mode so also can import automation process.

Accompanying drawing explanation

Fig. 1 illustrates the schematic perspective view of the battery pack according to an embodiment of the present utility model.

Fig. 2 illustrates the exploded perspective schematic diagram of the battery pack of Fig. 1.

Fig. 3 illustrates the exploded perspective schematic diagram of the members of the battery of the battery pack of Fig. 1.

Fig. 4 illustrates the schematic perspective view of the battery of the battery pack of Fig. 1.

Fig. 5 illustrates the top cross-sectional view of the battery of Fig. 4.

Fig. 6 illustrates the top cross-sectional view of the battery according to another embodiment of the present utility model.

Fig. 7 illustrates the top cross-sectional view of the battery according to another embodiment of the present utility model.

[description of reference numerals]

1 battery pack

10,10a, 10b battery

11 centre slices

111 first conductive parts

111a, 111a ' first is protruding

112 second conductive parts

112a second is protruding

113 insulation divisions

12 pole volumes

121 anode strips

121a first electrode

122 cathode sheets

122a second electrode

123 isolated sheets

131 first conduction handles

131a first kink

132 second conduction handles

132a second kink

141 the first terminals

1411 first wear portion

1412 first base portions

1413 first weld parts

142 second terminals

1421 second wear portion

1422 second base portions

1423 second weld parts

20 shells

20a accommodation space

201 first openings

202 second openings

31 first dead rings

32 second dead rings

41 first extrusion rings

411 first bodies

412 first convex ribs

42 second extrusion rings

421 second bodies

422 second convex ribs

51 first insulating trips

52 second insulating trips

61 first end caps

61a first through hole

62 second end caps

62a second through hole

71 first fixtures

711 first insulating base frames

711a first isolates ring portion

712 first nuts

72 second fixtures

721 second insulating base frames

721a second isolates ring portion

722 second nuts

Embodiment

For making the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, the utility model is further described.

Please refer to Fig. 1 and Fig. 2, Fig. 1 illustrates the schematic perspective view of the battery pack 1 according to an embodiment of the present utility model, and Fig. 2 illustrates the exploded perspective schematic diagram of the battery pack 1 of Fig. 1.Battery pack 1 comprises battery 10, shell 20, first dead ring 31, second dead ring 32, first extrusion ring 41, second extrusion ring 42, first insulating trip 51, second insulating trip 52, first end cap 61, second end cap 62, first fixture 71 and the second fixture 72.

The two ends of battery 10 have the first terminal 141 and the second terminal 142.The first terminal 141 comprises the first external diameter wearing portion 1411, first base portion 1412 and the first weld part 1413, first base portion 1412 be sequentially connected and is greater than the external diameter that first wears portion 1411.Second terminal 142 comprises the second external diameter wearing portion 1421, second base portion 1422 and the second weld part 1423, second base portion 1422 be sequentially connected and is greater than the external diameter that second wears portion 1421.

Shell 20 has relative the first opening 201 and the second opening 202 of accommodation space 20a and position.First opening 201 and the second opening 202 are all connected with accommodation space 20a.Battery 10 is placed in accommodation space 20a.The first terminal 141 is positioned at the first opening 201, second terminal 142 and is positioned at the second opening 202.First wears portion 1411 from the first base portion 1412 towards the extension of accommodation space 20a.Second wears portion 1421 from the second base portion 1422 towards the extension of accommodation space 20a.

First dead ring 31 is arranged at the first base portion 1412 of the first terminal 141, and first of the first terminal 141 wears portion 1411 and run through the first dead ring 31.Second dead ring 32 is arranged at the second base portion 1422 of the second terminal 142, and second of the second terminal 142 wears portion 1421 and run through the second dead ring 32.The material of the first dead ring 31 and the second dead ring 32 can be such as made up of polyester (polyester) material.

First extrusion ring 41 has first body 411 and the first convex rib 412.First convex rib 412 be connected in first body 411 and be positioned at first body 411 annular outer edge and circlewise.First extrusion ring 41 is stacked over the first dead ring 31 and first wears portion 1411 and run through the first extrusion ring 41.The hardness of the first extrusion ring 41 is greater than the hardness of the first dead ring 31.Second extrusion ring 42 has the second body 421 and the second convex rib 422.Second convex rib 422 be connected in the second body 421 and be positioned at the second body 421 annular outer edge and circlewise.Second extrusion ring 42 is stacked over the second dead ring 32 and second wears portion 1421 and run through the second extrusion ring 42.The hardness of the second extrusion ring 42 is greater than the hardness of the second dead ring 32.

First insulating trip 51 is stacked over the first extrusion ring 41 and first wears portion 1411 and run through the first insulating trip 51.The hardness of the first insulating trip 51 is less than the hardness of the first extrusion ring 41.Second insulating trip 52 is stacked over the second extrusion ring 42 and second wears portion 1421 and run through the second insulating trip 52.The hardness of the second insulating trip 52 is less than the hardness of the second extrusion ring 42.

First end cap 61 has the first through hole 61a.First end cap 61 is stacked over the first insulating trip 51, and first wears the first through hole 61a running through the first end cap 61 in portion 1411.Second end cap 62 has the second through hole 62a.Second end cap 62 is stacked over the second insulating trip 52, and second wears the second through hole 62a running through the second end cap 62 in portion 1421.First end cap 61 and the second end cap 62 can distinguish metal solder in the first opening 201 and the second opening 202 of shell 20.

First fixture 71 comprises separable first insulating base frame 711 and the first nut 712.First insulating base frame 711 has the first isolation ring portion 711a.First nut 712 is positioned at the side of the first insulating base frame 711 away from the first isolation ring portion 711a.First insulating base frame 711 is stacked over the first end cap 61, and the first isolation ring portion 711a wears between the outer surface in portion 1411 at the inner surface and first of the first through hole 61a.First nut 712 is stacked over the first insulating base frame 711 and is locked in first and wears portion 1411, first wears portion 1411 and the first end cap 61 to be electrically insulated.But be not limited thereto, in other embodiments, the first insulating base frame 711 and the first nut 712 also can be integrated inseparable, and make with insulating material.

Second fixture 72 comprises separable second insulating base frame 721 and the second nut 722.Second insulating base frame 721 has the second isolation ring portion 721a.Second nut 722 is positioned at the side of the second insulating base frame 721 away from the second isolation ring portion 721a.Second insulating base frame 721 is stacked over the second end cap 62, and the second isolation ring portion 721a wears between the outer surface in portion 1421 at the inner surface and second of the second through hole 62a.Second nut 722 is stacked over the second insulating base frame 721 and is locked in second and wears portion 1421, second wears portion 1421 and the second end cap 62 to be electrically insulated.But be not limited thereto, in other embodiments, the second insulating base frame 721 and the second nut 722 also can be integrated inseparable, and make with insulating material.

In the first fixture 71 be fixedly arranged on first wear portion 1411 time, first dead ring 31 and the first insulating trip 51 can be subject to the extruding of the first extrusion ring 41, and make the whole circle of the first convex rib 412 of the first extrusion ring 41 be absorbed in the first dead ring 31 and the first insulating trip 51, and then to make within the first end cap 61 and outside be able to airtight isolated.In the second fixture 72 be fixedly arranged on second wear portion 1421 time, second dead ring 32 and the second insulating trip 52 can be subject to the extruding of the second extrusion ring 42, and make the whole circle of the second convex rib 422 of the second extrusion ring 42 be absorbed in the second dead ring 32 and the second insulating trip 52, and then make inside and outside the second end cap 62, to be able to airtight completely cutting off.

The structure of battery 10 will be described in detail below.

Please refer to Fig. 3, Fig. 4 and Fig. 5, Fig. 3 illustrates the exploded perspective schematic diagram of the members of the battery 10 of the battery pack 1 of Fig. 1, and Fig. 4 illustrates the schematic perspective view of the battery 10 of the battery pack 1 of Fig. 1, and Fig. 5 illustrates the top cross-sectional view of the battery 10 of Fig. 4.

Battery 10 comprises multiple centre slice 11, multiple pole volume 12, first conduction handle 131, second conducts electricity handle 132, above-mentioned the first terminal 141 and the second above-mentioned terminal 142.

As shown in Figure 3, each centre slice 11 comprises the first conductive part 111, second conductive part 112 and insulation division 113.Each first conductive part 111 and each second conductive part 112 are embedded at the relative both sides of each insulation division 113.

The quantity of multiple poles volume 12 is equal with the quantity of multiple centre slice 11.Each pole volume 12 comprises anode strip 121, cathode sheets 122 and multiple isolated sheet 123.Isolated sheet 123 is between each anode strip 121 and each cathode sheets 122, and isolated each anode strip 121 and each cathode sheets 122.Each anode strip 121 has the first electrode 121a.Each cathode sheets 122 has the second electrode 122a.Each first electrode 121a and each second electrode 122a is positioned at the relative both sides of each pole volume 12.Each pole volume 12 is wound in each centre slice 11, and each first electrode 121a is electrically connected at each first conductive part 111, and each second electrode 122a is electrically connected at each second conductive part 112.In the present embodiment, each first electrode 121a and each second electrode 122a ultrasonic waves welding mode can be electrically connected at each first conductive part 111 and each second conductive part 112 respectively.

As shown in Figures 4 and 5, the first conduction handle 131 has multiple first kink 131a, and the shape of the first conduction handle 131 is stepped.First quantity of conducting electricity handle 131 is that the quantity of multiple centre slice 11 subtracts one.In the present embodiment, the quantity of centre slice 11 is two, and the quantity of the first conduction handle 131 is one.First conduction handle 131 is between the adjacent pairs of multiple centre slice 11.Multiple first protruding 111A difference metal solder of multiple first conductive parts 111 of multiple centre slice 11 are in the opposite end of the first conduction handle 131.In the present embodiment, multiple first protruding 111a ultrasonic waves welding mode can distinguish metal solder in the opposite end of the first conduction handle 131.It is similar that second conduction handle 132 and first conducts electricity handle 131, have multiple second kink 132a, and the second shape of conducting electricity handle 132 is stepped.Second quantity of conducting electricity handle 132 is that the quantity of multiple centre slice 11 subtracts one.Second conduction handle 132 is between the adjacent pairs of multiple centre slice 11.Multiple second protruding 112a difference metal solder of multiple second conductive parts 112 of multiple centre slice 11 are in the opposite end of the second conduction handle 132.In the present embodiment, multiple second protruding 112a ultrasonic waves welding mode can distinguish metal solder in the opposite end of the second conduction handle 132.The distance of the first conduction handle 131 and the first end cap 61 (being plotted in Fig. 2) is constant in fact, and the distance of the second conduction handle 132 and the second end cap 62 (being plotted in Fig. 2) is constant in fact.

First weld part 1413 metal solder of the first terminal 141 in the central part of the first conduction handle 131, and is electrically connected at multiple first conductive part 111.First wears portion 1411 is positioned at the side that the first base portion 1412 is away from the first conductive part 111.Second weld part 1423 metal solder of the second terminal 142 in the central part of the second conduction handle 132, and is electrically connected at multiple second conductive part 112.Second wears portion 1421 is positioned at the side that the second base portion 1422 is away from the second conductive part 112.

The electric current that multiple poles volume 12 produces or the electric current to volume 12 charging of multiple poles, can via the first conductive part 111 of centre slice 11 and the second conductive part 112, first conduction handle 131, second conduct electricity handle 132, the first terminal 141 and the second terminal 142, with extraneous circulating current.First conduction handle 131 and the first conductive part 111 can increase electric connection stability therebetween by metal solder.Second conduction handle 132 and the second conductive part 112, the first terminal 141 and first conduct electricity handle 131 and the second terminal 142 and second, and to conduct electricity handle 132 as the same.The amplitude that stair-stepping first conduction handle 131 and the second conduction handle 132 shake due to available buffer and are out of shape, therefore the resistance to earthquake degree of battery 10 can be increased, and provide the enough and to spare of distortion during the situation that can expand in using pole volume 12 or shrink.

Please refer to Fig. 6, illustrate the top cross-sectional view of the battery 10a according to another embodiment of the present utility model.In the present embodiment, the quantity of centre slice 11 and pole volume 12 is three, and the quantity of the first conduction handle 131 is two.The quantity of the second conduction handle is also two, but does not illustrate because covering in figure, and only describes first protruding 111a, 111a ', first connection relation conducted electricity between handle 131 and the first weld part 1413 ' of centre slice 11 below.And second of centre slice 11 the protruding, between the second conduction handle, the second weld part connection relation is similar to the former connection relation and do not add to repeat.

In the present embodiment, the opposite end metal solder of the first conduction handle 131 is in adjacent first protruding 111a, 111a '.First weld part 1413 metal solder is positioned at the first protruding 111a ' of the middle position of battery 10a in one of them of multiple first protruding 111a, 111a '.

Please refer to Fig. 7, illustrate the top cross-sectional view of the battery 10b according to another embodiment of the present utility model.In the present embodiment, the quantity of centre slice 11 and pole volume 12 is four, and the quantity of the first conduction handle 131 is three.The quantity of the second conduction handle is also three, but does not illustrate because covering in figure, and only describes the first protruding 111a, first connection relation conducted electricity between handle 131 and the first weld part 1413 of centre slice 11 below.And second of centre slice 11 the protruding, between the second conduction handle, the second weld part connection relation is similar to the former connection relation and do not add to repeat.

In the present embodiment, the opposite end metal solder of the first conduction handle 131 is in the adjacent first protruding 111a.First weld part 1413 metal solder is positioned at the central part of the first conduction handle 131 of battery 10b middle position in the multiple first one of them of conducting electricity handle 131.

In sum, battery of the present utility model and use its battery pack, can by being electrically connected the conductive part of centre slice and conduction handle in metal solder mode, to increase the stability be electrically connected therebetween.And, the shape of conduction handle is stepped, because having the enough and to spare of distortion, and pole can be avoided to roll up expansion occurred in use or contraction cause electric connection negative effect between conductive part and conduction handle, battery or battery pack also can be avoided to be given a shock or external impacts time cause electric connection negative effect between conductive part and conduction handle.In addition, the mode of the base portion of terminal, dead ring, extrusion ring, insulating trip and end cap sequentially storehouse, in fixture be fixedly arranged on wear portion time, extrusion ring can be absorbed in dead ring and insulating trip by whole circle, so to make within end cap and outside form airtight isolated state.Dead ring is subject to the strength of vertical compressing but not is reversed, therefore can extend its useful life.Assembling mode so also can import automation process.

Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.

Claims (10)

1. a battery, is characterized in that, comprising:

Multiple centre slice, respectively this centre slice comprises the first conductive part, the second conductive part and insulation division, respectively this first conductive part and respectively this second conductive part be arranged at the relative both sides of respectively this insulation division;

Multiple poles volume, is wound in described multiple centre slice respectively, and respectively this pole volume comprises the first electrode and the second electrode, and respectively this first electrode is electrically connected at respectively this first conductive part;

At least one first conduction handle, described first conductive part metal solder is in this at least one first conduction handle; And

The first terminal, is electrically connected at described first conductive part.

2. battery as claimed in claim 1, wherein, also comprises:

At least one second conduction handle, described second conductive part metal solder is in this at least one second conduction handle; And

Second terminal, is electrically connected at described second conductive part.

3. battery as claimed in claim 1, wherein this first terminal metal solder is in one of them of this at least one first conduction handle.

4. battery as claimed in claim 1, wherein this first terminal metal solder is in one of them of described first conductive part.

5. battery as claimed in claim 1, wherein quantity of this at least one first conduction handle is that the quantity of described multiple centre slice subtracts one, and respectively this at least one first conduction handle is between the adjacent pairs of described multiple centre slice.

6. battery as claimed in claim 1, wherein respectively this at least one first conduction handle has multiple kink, and respectively the shape of this at least one first conduction handle is stepped.

7. a battery pack, is characterized in that, comprising:

As the battery of claim 1 to 6 as described in one of them, this first terminal comprises the base portion that is connected with each other and wears portion, and this base portion is electrically connected at described first conductive part, and this portion of wearing is arranged at the side that this base portion is away from described first conductive part;

Shell, has accommodation space and opening, and this battery is placed in this accommodation space, and this first terminal is positioned at this opening, and this wears portion from this base portion towards the extension of this accommodation space;

Dead ring, is arranged at this base portion of this first terminal and this dead ring is run through in this portion of wearing of this first terminal;

Extrusion ring, is stacked over this dead ring and this extrusion ring is run through in this portion of wearing, and the hardness of this extrusion ring is greater than the hardness of this dead ring;

Insulating trip, is stacked over this extrusion ring and this insulating trip is run through in this portion of wearing, and the hardness of this insulating trip is less than the hardness of this extrusion ring;

End cap, is stacked over this insulating trip and this end cap is run through in this portion of wearing; And

Fixture, is stacked over this end cap and is fixedly arranged on this and wear portion.

8. battery pack as claimed in claim 7, wherein this end cap has through hole, and this fixture has isolation ring portion, and this through hole is run through in this portion of wearing, and this shading ring portion is positioned at the inner surface of this through hole and this wears between the outer surface in portion.

9. battery pack as claimed in claim 8, wherein this fixture comprises separable insulating base frame and nut, and this insulating base frame has this isolation ring portion, and this nut is positioned at the side of this insulating base frame away from this isolation ring portion.

10. battery pack as claimed in claim 7, wherein this extrusion ring has body and convex rib, and this convex rib is connected in this body and is positioned at the annular outer edge of this body.