CN201608212U - Battery combination cover cap - Google Patents
Battery combination cover cap Download PDFInfo
- Publication number
- CN201608212U CN201608212U CN200920262431XU CN200920262431U CN201608212U CN 201608212 U CN201608212 U CN 201608212U CN 200920262431X U CN200920262431X U CN 200920262431XU CN 200920262431 U CN200920262431 U CN 200920262431U CN 201608212 U CN201608212 U CN 201608212U
- Authority
- CN
- China
- Prior art keywords
- burst disk
- battery combination
- combination block
- battery
- conductive plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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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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- Gas Exhaust Devices For Batteries (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a battery combination cover cap comprising a rubber ring with a through hole, a conductive plate which is sequentially accommodated in the through hole of the rubber ring and comprises at least one air hole, an explosion-proof sheet which is electrically connected on the conductive plate and a top cover which is electrically connected on the explosion-proof sheet. The explosion-proof sheet is provided with an annular basal part, a bending part extending from the annular basal part and a depression part which is positioned at the end part of the bending part, and a groove is arranged on the depression part. The groove is arranged on the depression part of the explosion-proof sheet in the battery combination cover cap, thereby being used for regulating the rigidity of the explosion-proof sheet, conveniently and controllably adjusting the overturning pressure of the explosion-proof sheet and accurately breaking the current when the abnormal situation occurs in a battery.
Description
Technical field
The utility model relates to a kind of battery combination block, especially a kind of battery combination block with good safety energy.
Background technology
Along with science and technology development, mobile devices such as video camera, notebook computer, portable DVD player and digital camera have had application more and more widely.Mobile device has portable characteristics, generally all need be with battery, and especially high energy battery such as lithium ion battery is as power supply.
Though high-energy battery can be at any time for electronic equipment provides power supply,, owing to reasons such as the use of high-energy chemistry material and concentration of energy, the security performance of high-energy battery fails to be satisfactorily resolved always.For example, lithium ion battery in charging, discharge or use, through regular meeting owing to be squeezed, short circuit takes place in fortuitous event such as collision or improper operation.During short circuit, lithium ion battery can produce very big electric current and produce a large amount of heats in a short period of time, and the accumulation of heat may cause lithium ion battery that burning even blast take place, and works the mischief for mobile device and user's thereof safety.
In order to solve this technical problem, all be provided with the battery combination block that is used to improve battery safety on a lot of batteries of the prior art.These battery combination blocks generally comprise: one are provided with the cushion rubber of a step through hole, stablely successively are contained in the conductive plate, that one in the step through hole offer at least one pore and are electrically connected at burst disk on the conductive plate by welding, and a top cover that places on the burst disk and electrically connect with burst disk.In actual the use, when battery overcharges or during abnormal conditions such as short circuit, the expanding gas in the battery can pass from the pore of conductive plate, and burst disk exerted pressure make it upwards to be out of shape.When gas pressure reached predetermined force value, the solder joint that is used to electrically connect conductive plate and burst disk was broken, and battery circuit in time cuts off to prevent battery explosion.
But there is following defective at least in the battery combination block of above-mentioned prior art: the rigidity of burst disk is non-adjustable, and eversion pressure is difficult to control and adjusts, and therefore can't guarantee accurately to stop when abnormal conditions appear in battery, has influenced the security performance of battery.
In view of this, necessary provide a kind of have good safety can battery combination block.
The utility model content
The purpose of this utility model is: a kind of battery combination block with good safety energy is provided.
To achieve these goals, the utility model provides a kind of battery combination block, it comprises: one offer the cushion rubber of a through hole, be contained in a conductive plate, of offering at least one pore in the cushion rubber through hole successively and be electrically connected at a burst disk on the conductive plate and a top cover that is electrically connected on the burst disk.Burst disk is provided with the kink that an annular base, extends from annular base, and a depressed part that is positioned at the kink end, and depressed part is provided with a groove.
With respect to prior art, the depressed part of the burst disk in the utility model battery combination block is provided with a groove, it can be used for regulating the rigidity of burst disk, conveniently, controllably to adjust the eversion pressure of burst disk, can accurately stop when abnormal conditions appear in battery.
As a kind of improvement of the utility model battery combination block, described groove is the circle of sealing, square, trapezoidal, rectangle or ellipse.
As a kind of improvement of the utility model battery combination block, be provided with a thermistor between described burst disk and the described top cover, the central authorities of thermistor are provided with one can accommodate the kink of upset burst disk and the medium pore of depressed part.
As a kind of improvement of the utility model battery combination block, the annular base of described burst disk and the junction of kink are provided with an indenture.
As a kind of improvement of the utility model battery combination block, described groove is concentric setting with described indenture.
As a kind of improvement of the utility model battery combination block, described top cover is provided with an annular base plate, and is positioned at the circular top on sidewall top from the upwardly extending sidewall of annular base plate and, and sidewall and/or circular top are provided with at least one air-vent.
As a kind of improvement of the utility model battery combination block, described burst disk and described conductive plate electrically connect by solder joint at described depressed part place, and described conductive plate beyond the solder joint and described burst disk are isolated by insulation spacer insulation.
As a kind of improvement of the utility model battery combination block, the central position of the kink of described burst disk is provided with at least one indentation.
Description of drawings
Below in conjunction with the drawings and specific embodiments, the utility model battery combination block and useful technique effect thereof are elaborated, wherein:
Figure 1 shows that the cross-sectional schematic of the utility model battery combination block assembled state, wherein, burst disk is not overturn.
Figure 2 shows that among Fig. 1 the schematic perspective view of unturned burst disk still.
Fig. 3 is that schematic perspective view and Fig. 2 of another execution mode of burst disk in the battery combination block shown in Figure 1 is similar, and burst disk is not overturn.
Figure 4 shows that another cross-sectional schematic of the utility model battery combination block assembled state, wherein, burst disk is overturn.
Figure 5 shows that the schematic perspective view of the burst disk of having overturn among Fig. 4.
Fig. 6 is a burst disk shown in Figure 3 schematic perspective view under the rollover states.
Embodiment
See also Fig. 1 to shown in Figure 6, the utility model battery combination block comprises: a cushion rubber 20, a top cover 30, a burst disk 40, a thermistor 50, an insulation spacer 60 and a conductive plate 80.
Please consult Fig. 2 and Fig. 4 especially, burst disk 40 is the round sheet body of a concavity, and it comprises an annular base 402, a kink 404 from the downward-sloping extension of medial margin of annular base 402, and a depressed part 406 that is positioned at kink 404 ends.Be provided with the circular indentations 403 of a sealing near annular base 402 and kink 404 connections, when the pressure of inside battery surpassed scheduled pressure value, burst disk 40 can be in the fracture of indenture 403 places, with the air pressure in the timely release battery with guarantee cell safety.
The depressed part 406 that is positioned at burst disk 40 middle positions is a straight wafer body, and its upper surface towards top cover 30 is recessed to form a groove 405 downwards, and the degree of depth of groove 405 can be adjusted according to the tilting force of burst disk 40 actual needs.In illustrated embodiment, groove 405 and indenture 403 are concentric setting.Groove 405 can be regulated the rigidity of burst disk 40, makes that the eversion pressure of burst disk 40 can make things convenient for, controllably adjusts, and when battery in use abnormal conditions occur, can cut off electric current exactly.
Need to prove, in illustrated embodiment, the circle that is shaped as sealing of groove 405.But according to other execution modes of the present utility model, groove 405 also can be made different interface shapes with convenience according to the precision of processing technology, as square, trapezoidal, the rectangle of sealing and ellipse etc.
In addition, please consult Fig. 3 and shown in Figure 6 especially, in order to reduce the eversion pressure of the burst disk 40 that harder aluminium etc. is processed into, be provided with a circular score line 407 along the central position of the kink 404 of burst disk 40, indentation 407 preferably with groove 405, indenture 403 concentric settings.In illustrated embodiment, the central position of the kink 404 of burst disk 40 only is provided with indentation 407 one, but, implement according to of the present utility model other, also can with the difference of material hardness multiple tracks indentation 407 be set near the central position of kink 404 according to reality.
The main part 602 of insulation spacer 60 is an annular, less than through hole 208 diameters at second vertical wall, 204 places, what the interior ring edge of insulation spacer 60 also was provided with bending vertically downward keeps out wall 604 to its external diameter greater than through hole 208 diameters at the 3rd vertical wall 206 places of cushion rubber 20.
The shape approximation of the shape of conductive plate 80 and top cover 30, it is provided with a ring part 802, ring part 802 downward-sloping a junction 804 that extend to form, the top of connecting portion 804 is a circular piece body 805.The external profile diameter of the ring part 802 of conductive plate 80 is equal to or slightly less than the outer ring diameter of insulation spacer 60, and the bottom center of sheet body 805 offers the upwards sunk area 808 of depression, and sunk area 808 upsides are the less disconnection portion 809 of thickness.Also be provided with at least one pore 810 on the sheet body 805.
In addition, need to prove,, between burst disk 40 and the top cover 30 thermistor 50 can be set in order further to guarantee the security performance of battery.Thermistor 50 is a straight annular slab lamellar body, and its center is provided with a medium pore 502, and the slightly larger in diameter of medium pore 502 is in the size of the kink 404 of burst disk 40.When upwards overturning under the gas pressure effect of burst disk 40 in battery, medium pore 502 can be accommodated the kink 404 and the depressed part 406 of the burst disk 40 of having overturn.
The assembling process of the utility model battery combination block is as follows: at first, insulation spacer 60 is placed on the ring part 802 of conductive plate 80, insulation spacer 60 support ring part 802 inner edges that shelves wall 604 fits in conductive plate 80, produce displacements to prevent conductive plate 80 with respect to insulation spacer 60; Then, the disconnection portion 809 of the depressed part 406 of burst disk 40 and conductive plate 80 is electrically connected in the mode of spot welding, and will weld the through hole 208 that the burst disk 40 of getting well and conductive plate 80 place cushion rubber 20; Again, place on the burst disk 40 successively thermistor 50 and top cover 30 and compacting.
Please continue to consult Fig. 1 and Fig. 3, during jaw, the blind end 203 of cushion rubber 20 bends distortion under the extruding of box hat 70, first vertical wall, 202 tops of blind end 203 compress the annular base plate 302 of top cover 30 from above, burst disk 40, thermistor 50 and top cover 30 compactings are fixed, formed electric connection each other.
When the temperature of battery short circuit so that inside battery in charging or use raises, the gas of expansion will enter the space between conductive plate 80 and the burst disk 40 from the pore 810 of conductive plate 80.If the pressure of gas reaches certain numerical value, the kink 404 of burst disk 40 and depressed part 406 will be pushed upwards distortion.Owing to the ring part 802 of conductive plate 80, the main part 602 of insulation spacer 60 and annular base 402 tight contacts of burst disk 40 do not have the space, when therefore burst disk 40 is out of shape, can in time the disconnection portion 809 of conductive plate 80 or the solder joint between burst disk 40 and the conductive plate 80 be broken, thereby battery circuit is opened circuit and stop to heat up; If the bulbs of pressure of gas are excessive, when upwards being deformed to a certain degree, burst disk 40 can disconnect at indenture 403 places, and gas can be discharged from the air-vent 306 of top cover 30, to guarantee that battery does not catch fire or explodes.
In conjunction with above-mentioned to detailed description of the present utility model as can be seen: be different from prior art, the depressed part 406 of the burst disk 40 in the utility model battery combination block is provided with a groove 405, it can be used for regulating the rigidity of burst disk 40, conveniently, controllably to adjust the eversion pressure of burst disk 40, when appearring in battery, abnormal conditions can stop exactly.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also carry out suitable change and modification to above-mentioned execution mode.Therefore, the embodiment that discloses and describe above the utility model is not limited to also should fall in the protection range of claim of the present utility model modifications and changes more of the present utility model.In addition, although used some specific terms in this specification, these terms do not constitute any restriction to the utility model just for convenience of description.
Claims (8)
1. battery combination block, it comprises: one offer the cushion rubber of a through hole, be contained in a conductive plate, of offering at least one pore in the cushion rubber through hole successively and be electrically connected at burst disk on the conductive plate, an and top cover that is electrically connected on the burst disk, it is characterized in that: described burst disk is provided with an annular base, a kink from the annular base extension, and a depressed part that is positioned at the kink end, depressed part is provided with a groove.
2. battery combination block according to claim 1 is characterized in that: the central position of the kink of described burst disk is provided with at least one indentation.
3. battery combination block according to claim 1 is characterized in that: described groove is the circle of sealing, square, trapezoidal, rectangle or ellipse.
4. battery combination block according to claim 1 is characterized in that: be provided with a thermistor between described burst disk and the described top cover, the central authorities of thermistor are provided with one can accommodate the kink of upset burst disk and the medium pore of depressed part.
5. battery combination block according to claim 1 is characterized in that: the annular base of described burst disk and the junction of kink are provided with an indenture.
6. battery combination block according to claim 5 is characterized in that: described groove is concentric setting with described indenture.
7. battery combination block according to claim 1, it is characterized in that: described top cover is provided with an annular base plate, and is positioned at the circular top on sidewall top from the upwardly extending sidewall of annular base plate and, and sidewall and/or circular top are provided with at least one air-vent.
8. battery combination block according to claim 1 is characterized in that: described burst disk and described conductive plate electrically connect by solder joint at described depressed part place, and described conductive plate beyond the solder joint and described burst disk are isolated by insulation spacer insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920262431XU CN201608212U (en) | 2009-11-10 | 2009-11-10 | Battery combination cover cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920262431XU CN201608212U (en) | 2009-11-10 | 2009-11-10 | Battery combination cover cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201608212U true CN201608212U (en) | 2010-10-13 |
Family
ID=42952915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920262431XU Expired - Lifetime CN201608212U (en) | 2009-11-10 | 2009-11-10 | Battery combination cover cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201608212U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102088064A (en) * | 2011-01-04 | 2011-06-08 | 无锡市金杨新型电源有限公司 | Novel battery cover cap structure |
| CN106299170A (en) * | 2016-07-28 | 2017-01-04 | 宁波震裕科技股份有限公司 | Integrated explosion-proof roll-over valve on automobile lithium battery top cover |
| CN108183183A (en) * | 2018-01-19 | 2018-06-19 | 东莞市奕东电子有限公司 | Battery cap structure, battery cell and the battery pack of a kind of car lithium battery |
| CN108886129A (en) * | 2016-03-25 | 2018-11-23 | 三洋电机株式会社 | Cylindrical battery |
-
2009
- 2009-11-10 CN CN200920262431XU patent/CN201608212U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102088064A (en) * | 2011-01-04 | 2011-06-08 | 无锡市金杨新型电源有限公司 | Novel battery cover cap structure |
| CN108886129A (en) * | 2016-03-25 | 2018-11-23 | 三洋电机株式会社 | Cylindrical battery |
| CN108886129B (en) * | 2016-03-25 | 2021-09-10 | 三洋电机株式会社 | Cylindrical battery |
| CN106299170A (en) * | 2016-07-28 | 2017-01-04 | 宁波震裕科技股份有限公司 | Integrated explosion-proof roll-over valve on automobile lithium battery top cover |
| CN106299170B (en) * | 2016-07-28 | 2019-02-01 | 宁波震裕科技股份有限公司 | The integrally formed explosion-proof roll-over valve on automobile lithium battery top cover |
| CN108183183A (en) * | 2018-01-19 | 2018-06-19 | 东莞市奕东电子有限公司 | Battery cap structure, battery cell and the battery pack of a kind of car lithium battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101013 |
|
| CX01 | Expiry of patent term |