CN203386839U - Lithium ion power battery - Google Patents
Lithium ion power battery Download PDFInfo
- Publication number
- CN203386839U CN203386839U CN201320579461.XU CN201320579461U CN203386839U CN 203386839 U CN203386839 U CN 203386839U CN 201320579461 U CN201320579461 U CN 201320579461U CN 203386839 U CN203386839 U CN 203386839U
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- China
- Prior art keywords
- negative
- cover plate
- clamp nut
- lithium
- positive terminal
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- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model provides a lithium ion power battery which comprises a positive pole, a negative pole, connecting pieces and a cover plate, wherein a lug boss is arranged at one end, away from a fastening nut, of each of the two poles; a groove is formed in each lug boss; the cover plate is sleeved on the two poles; overturned edges are arranged on parts, adjacent to the poles, of the cover plate; each overturned edge is matched with the corresponding groove; the two overturned edges are fixedly arranged on the corresponding poles through fixing pins. According to the lithium ion power battery, a plurality of batteries can be conveniently connected in series or in parallel, and can be conveniently disassembled, individual failing batteries can be conveniently and timely replaced, also the sealing effects of the batteries can be improved, and the phenomena of air leakage and internal resistance increase of the batteries can be avoided, so that the probability of potential safety hazards caused by the inner short circuit of the battery is reduced, and the reliability and the practicability of the battery are further enhanced; each connecting piece comprises a transverse plate and a cambered vertical plate, an adjusting bolt hole is formed in each transverse plate, and rigid studs penetrate through the adjusting bolt holes.
Description
Technical field
The utility model relates to field of batteries, specifically a kind of lithium-ion-power cell.
Background technology
For overcoming energy shortage and environmental contamination reduction, lithium ion battery because its energy density is high, have extended cycle life, optimal selection that the advantage such as green non-pollution becomes automobile power.
And at present, for existing power battery structure, generally all adopt the mode of soldering polar ear on positive and negative lug, this just makes the drainage piece contact area of cell polar ear and battery cover board little, pole piece drainage skewness weighing apparatus, cause the internal resistance of cell higher, affects the high-power efficiency discharged and recharged.
Granted publication number for the patent of CN203192905U discloses a kind of lithium-ion-power cell, as shown in Figure 3, comprises positive terminal 1, negative terminal 2 and brace 3; Be respectively equipped with clamp nut 11 on positive terminal 1 and negative terminal 2, clamp nut 11 is threaded with positive terminal 1, negative terminal 2; Be respectively equipped with centre bore 16 on positive terminal 1 and negative terminal 2, be provided with rigidity double-screw bolt 10 in centre bore 16; Positive terminal 1, negative terminal 2 are connected by connecting pin 12 with rigidity double-screw bolt 10 respectively; Be provided with horizontal pin-and-hole 17 with one heart on positive terminal 1, negative terminal 2 and rigidity double-screw bolt 10, connecting pin 12 is arranged in pin-and-hole 17; Clamp nut 4 is installed on rigidity double-screw bolt 10, and brace 3 is pressed abd fixed on clamp nut 11 by clamp nut 4; This technical scheme also comprises cover plate 13, and described clamp nut 11 is pressed abd fixed on described cover plate 13 on positive terminal 1 and negative terminal 2.
Technique scheme has overcome current existing problem, and discloses the relative stable connection of a kind of brace, the internal resistance of cell is low, heavy-current discharge performance is strong lithium-ion-power cell.
But still there is following deficiency in technique scheme: one, when a plurality of batteries of needs carry out serial or parallel connection, the connection in series-parallel that is not easy to battery connects, and can't facilitate in time displacement when indivedual batteries break down; Two, when clamp nut 11 is loosening, causes cover plate 13 because unbalance stress becomes flexible, and then affect the sealing effectiveness of battery, thereby to a certain degree causing battery gas leakage, the internal resistance of cell increases, and the internal short-circuit of battery that causes of a serious nature causes potential safety hazard.This is the deficiencies in the prior art part.
The utility model content
The technical problems to be solved in the utility model is, a kind of technical scheme of lithium-ion-power cell is provided, this scheme is the brace stable connection not only, the internal resistance of cell is low, heavy-current discharge performance is strong, and can overcome the deficiencies in the prior art, not only can be convenient to a plurality of batteries and carry out the connection in series-parallel connection, and convenient disassembly, be convenient to the timely displacement of indivedual fail batteries, and can increase the sealing effectiveness of battery, avoid battery gas leak phenomenon and the internal resistance of cell to increase the generation of phenomenon, thereby reduce the probability that internal short-circuit of battery causes potential safety hazard, and then strengthen reliability of the present utility model and practicality.
In order to solve the problems of the technologies described above, the utility model provides following a kind of lithium-ion-power cell, comprise positive terminal, negative terminal, brace and cover plate, be respectively equipped with clamp nut on described positive terminal and negative terminal, be respectively equipped with centre bore on described positive terminal and negative terminal, be provided with the rigidity double-screw bolt in centre bore, described positive terminal, negative terminal are connected by connecting pin with described rigidity double-screw bolt respectively; On described rigidity double-screw bolt, clamp nut is installed, described brace is pressed abd fixed on clamp nut by described clamp nut; Described clamp nut is pressed abd fixed on described cover plate on positive terminal and negative terminal; And described two binding posts respectively are provided with a boss away from an end of clamp nut, and described boss is provided with groove; Described cover plate is socketed on two binding posts, and the close vicinity of cover plate and two binding posts is provided with flange, and each described flange matches with corresponding groove, and two flange are fixed on corresponding binding post by steady pin; Described brace comprises transverse slat and arc riser, and on transverse slat, with adjusting bolt hole, described rigidity double-screw bolt is adjusted bolt hole through this.
The utility model rigidity double-screw bolt and positive terminal, negative terminal split arrange, positive terminal, negative terminal and rigidity double-screw bolt can adopt respectively different materials, as the rigidity double-screw bolt is that stainless steel double-screw bolt that intensity is higher or high-carbon steel double-screw bolt, positive terminal adopt copper-base post, negative terminal to adopt the aluminium pole.The rigidity double-screw bolt is connected by connecting pin with positive terminal, negative terminal, increased firmness of the present utility model, easy accessibility again, and positive terminal, negative terminal inside are without internal thread is set, the stripped thread that does not exist internal thread distortion, wearing and tearing to cause, the problem of dropout, thus make the connection that brace of the present utility model can be relatively firm.
The utility model respectively is provided with a boss at two binding posts away from an end of clamp nut, be provided with groove on described boss, and described cover plate is socketed on two binding posts, and be provided with in the close vicinity of cover plate and two binding posts the flange matched with corresponding groove, and two flange are fixed on corresponding binding post by steady pin, overcome in prior art loosening because of clamp nut, so that cover plate is loosening, and then affect the drawback of cell sealing effect, avoided battery gas leak phenomenon and the internal resistance of cell to increase the generation of phenomenon, thereby reduced the probability that internal short-circuit of battery causes potential safety hazard, and then reliability of the present utility model and practicality have been strengthened.
Wherein, be equipped with pin-and-hole on the arc riser of two braces.
Wherein, also comprise positive pole ear and negative lug, between described positive terminal and positive pole ear, be provided with plus plate current-collecting body, between described negative electrode pole and negative lug, be provided with negative current collector.
Wherein, described positive pole ear is welded on an end of plus plate current-collecting body, and described positive terminal is welded on the other end of described plus plate current-collecting body.
Wherein, described negative lug is welded on an end of negative current collector, and described negative electrode pole is welded on the other end of described negative current collector.
Wherein, described groove in the form of a ring.
Wherein, described flange in the form of a ring.
Compare with the prior art scheme, the utility model has the advantage of:
(1) the utility model respectively is provided with a boss at two binding posts away from an end of clamp nut, be provided with groove on described boss, and described cover plate is socketed on two binding posts, and be provided with in the close vicinity of cover plate and two binding posts the flange matched with corresponding groove, and two flange are fixed on corresponding binding post by steady pin, overcome in prior art loosening because of clamp nut, so that cover plate is loosening, and then affect the drawback of cell sealing effect, avoided battery gas leak phenomenon and the internal resistance of cell to increase the generation of phenomenon, thereby reduced the probability that internal short-circuit of battery causes potential safety hazard, and then reliability of the present utility model and practicality have been strengthened,
(2) brace of the present utility model comprises transverse slat and arc riser, and on described transverse slat with adjusting bolt hole, adjust the use of bolt hole, can suitably regulate according to needs the length of brace transverse slat, thereby enlarge the scope of application of the present utility model; The riser of brace is made as the arc riser, is convenient to and being connected of extraneous circuit;
(3) the utility model is equipped with the connection pin-and-hole on the arc riser of two braces, thereby in use, when needs carry out the serial or parallel connection of battery, can be according to actual demand, pass the connection pin-and-hole on the corresponding brace of each battery with steady pin, each battery is carried out to serial or parallel connection, and this has been avoided the use of welding technology, and easy accessibility and cost are low; And can carry out in time the displacement of respective battery when indivedual batteries break down, also avoid causing because changing battery pack the generation of wasting of resources phenomenon, further reduce cost.
As can be seen here, the utility model compared with prior art, has substantive distinguishing features and progress, and the beneficial effect of its enforcement is also apparent.
The accompanying drawing explanation
In order to be illustrated more clearly in execution mode of the present utility model, below will the accompanying drawing of required use in execution mode be briefly described.
The cutaway view schematic diagram that Fig. 1 is structure chart of the present utility model.
The structural diagrams intention that Fig. 2 is brace described in the utility model.
Fig. 3 is prior art.
Wherein: 1, positive terminal, 2, negative terminal, 3, brace, 4, clamp nut, 5, boss, 6, groove, 7, flange, 8, steady pin, 9, connect pin-and-hole, 10, the rigidity double-screw bolt, 11, clamp nut, 12, connecting pin, 13, cover plate, 14, plus plate current-collecting body, 15, negative current collector, 16, centre bore, 17, pin-and-hole, 18, transverse slat, 19, the arc riser, 20, adjust bolt hole, 21, pin-and-hole, a, positive pole ear, b, negative lug.
Embodiment
For ease of explanation, below in conjunction with accompanying drawing, utility model is described in further detail.
As depicted in figs. 1 and 2, a kind of lithium-ion-power cell of the present utility model, comprise positive terminal 1, negative terminal 2, brace 3 and cover plate 13, be respectively equipped with clamp nut 11 on described positive terminal 1 and negative terminal 2, be respectively equipped with centre bore 16 on described positive terminal 1 and negative terminal 2, be provided with rigidity double-screw bolt 10 in centre bore 16, described positive terminal 1, negative terminal 2 are connected by connecting pin 12 with described rigidity double-screw bolt 10 respectively; On described rigidity double-screw bolt 10, clamp nut 4 is installed, described brace 3 is pressed abd fixed on clamp nut 11 by described clamp nut 4; Described clamp nut 11 is pressed abd fixed on described cover plate 13 on positive terminal 1 and negative terminal 2; And described two binding posts respectively are provided with an annular boss 5 away from an end of clamp nut 11, and described boss 5 is provided with annular recess 6; Described cover plate 13 is socketed on two binding posts, and the close vicinity of cover plate 13 and two binding posts is provided with ring-type flange 7, and each described flange 7 matches with corresponding groove 6, and two flange 7 are by steady pin 8, be fixed on corresponding pole through connecting pin-and-hole 9; Described brace 3 comprises transverse slat 18 and arc riser 19, and on transverse slat 18, with adjusting bolt hole 20, described rigidity double-screw bolt 10 is adjusted bolt hole 20 through this.
Wherein, in the above-described embodiment, on the arc riser 19 of two braces 3, be equipped with pin-and-hole 21.
Wherein, in the above-described embodiment, the utility model also comprises positive pole ear a and negative lug b, between described positive terminal 1 and positive pole ear a, is provided with plus plate current-collecting body 14, between described negative electrode pole and negative lug b, is provided with negative current collector 15; And described positive pole ear a is welded on an end of plus plate current-collecting body 14, and described positive terminal 1 is welded on the other end of described plus plate current-collecting body 14.Described negative lug b is welded on an end of negative current collector 15, and described negative electrode pole is welded on the other end of described negative current collector 15.
The above, it is only better embodiment of the present utility model, not the utility model is done to any pro forma restriction, although the utility model with better embodiment openly as above, yet, not in order to limit the utility model, any those skilled in the art, within not breaking away from the technical solutions of the utility model scope, certainly can utilize the technology contents of announcement to make a little change or modification, become the equivalent execution mode of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, any simple modification of above execution mode being done according to technical spirit of the present utility model, equivalent variations and modification, all belong in the scope of technical solutions of the utility model.
Claims (7)
1. a lithium-ion-power cell, comprise positive terminal, negative terminal, brace and cover plate, be respectively equipped with clamp nut on described positive terminal and negative terminal, be respectively equipped with centre bore on described positive terminal and negative terminal, be provided with the rigidity double-screw bolt in centre bore, described positive terminal, negative terminal are connected by connecting pin with described rigidity double-screw bolt respectively; On described rigidity double-screw bolt, clamp nut is installed, described brace is pressed abd fixed on clamp nut by described clamp nut; Described clamp nut is pressed abd fixed on described cover plate on positive terminal and negative terminal; It is characterized in that: described two binding posts respectively are provided with a boss away from an end of clamp nut, and described boss is provided with groove; Described cover plate is socketed on two binding posts, and the close vicinity of cover plate and two binding posts is provided with flange, and each described flange matches with corresponding groove, and two flange are fixed on corresponding binding post by steady pin; Described brace comprises transverse slat and arc riser, and on transverse slat, with adjusting bolt hole, described rigidity double-screw bolt is adjusted bolt hole through this.
2. lithium-ion-power cell according to claim 1, is characterized in that: on the arc riser of two braces, be equipped with pin-and-hole.
3. lithium-ion-power cell according to claim 1 and 2, is characterized in that: also comprise positive pole ear and negative lug, between described positive terminal and positive pole ear, be provided with plus plate current-collecting body, between described negative electrode pole and negative lug, be provided with negative current collector.
4. lithium-ion-power cell according to claim 3, it is characterized in that: described positive pole ear is welded on an end of plus plate current-collecting body, and described positive terminal is welded on the other end of described plus plate current-collecting body.
5. lithium-ion-power cell according to claim 3, it is characterized in that: described negative lug is welded on an end of negative current collector, and described negative electrode pole is welded on the other end of described negative current collector.
6. according to the described lithium-ion-power cell of claim 1, it is characterized in that: described groove in the form of a ring.
7. according to the described lithium-ion-power cell of claim 1, it is characterized in that: described flange in the form of a ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320579461.XU CN203386839U (en) | 2013-09-18 | 2013-09-18 | Lithium ion power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320579461.XU CN203386839U (en) | 2013-09-18 | 2013-09-18 | Lithium ion power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203386839U true CN203386839U (en) | 2014-01-08 |
Family
ID=49875293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320579461.XU Expired - Fee Related CN203386839U (en) | 2013-09-18 | 2013-09-18 | Lithium ion power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203386839U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109103363A (en) * | 2018-08-13 | 2018-12-28 | 珠海格力电器股份有限公司 | Battery cover plate, aluminum shell battery and battery module |
| CN111106300A (en) * | 2019-01-30 | 2020-05-05 | 宁德时代新能源科技股份有限公司 | Battery unit cell module |
| CN113889715A (en) * | 2021-08-27 | 2022-01-04 | 杨晨 | Lithium ion battery pole piece structure and lithium ion battery |
-
2013
- 2013-09-18 CN CN201320579461.XU patent/CN203386839U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109103363A (en) * | 2018-08-13 | 2018-12-28 | 珠海格力电器股份有限公司 | Battery cover plate, aluminum shell battery and battery module |
| CN111106300A (en) * | 2019-01-30 | 2020-05-05 | 宁德时代新能源科技股份有限公司 | Battery unit cell module |
| CN113889715A (en) * | 2021-08-27 | 2022-01-04 | 杨晨 | Lithium ion battery pole piece structure and lithium ion battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20190918 |