CN201365119Y - Power battery protection device - Google Patents
Power battery protection device Download PDFInfo
- Publication number
- CN201365119Y CN201365119Y CNU2009200502553U CN200920050255U CN201365119Y CN 201365119 Y CN201365119 Y CN 201365119Y CN U2009200502553 U CNU2009200502553 U CN U2009200502553U CN 200920050255 U CN200920050255 U CN 200920050255U CN 201365119 Y CN201365119 Y CN 201365119Y
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- CN
- China
- Prior art keywords
- safety plate
- electrokinetic cell
- protective device
- bus
- binding post
- 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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- Connection Of Batteries Or Terminals (AREA)
Abstract
A power battery protection device comprising a wiring terminal, a busbar and a safety disc; and the wiring terminal is electrically connected with the busbar through the safety disc. Compared with the prior art, the power battery protection device of the utility model has following advantages: when the power battery has a short-circuit and causes the electricity of the whole circuit to be greater than the maximum safety electricity, the safety disc arranged between the wiring terminal and the busbar can be fused and cut off to timely break the whole current of the whole circuit, thereby avoiding safety accidents and protecting the power battery and electronic equipment from damage at the same time.
Description
Technical field
The utility model relates to a kind of electrokinetic cell protective device, the especially a kind of protective device that can protect electrokinetic cell to be without prejudice when short circuit.
Background technology
Development along with modern society, increasing electronic equipment, especially various mobile devices such as video camera, notebook computer, portable DVD player and digital camera etc., application has more and more widely all been arranged, because it is portable that these equipment have mostly, therefore, all needing to use electrokinetic cell is power supply, and high-energy power battery preferably, as lithium ion battery etc.Though high-energy power battery can provide energy source for electronic equipment at any time; but owing to reasons such as the use of high-energy chemistry material and concentration of energy; the security performance of high-energy battery but can not get satisfactory solution always; such as; electrokinetic cell is short-circuited owing to being squeezed, colliding or running into other fortuitous events through regular meeting in charging, discharge or use.During short circuit, electrokinetic cell can produce very big electric current, and the accumulation of heat may cause electrokinetic cell that burning even blast take place, and works the mischief for simultaneously electronic equipment and user thereof.
In view of this, necessaryly provide a kind of electrokinetic cell protective device, make electrokinetic cell when short circuit, above-mentioned security incident can not take place.
The utility model content
The purpose of this utility model is: a kind of electrokinetic cell protective device that can protect electrokinetic cell to be without prejudice when short circuit is provided.
For solving the problems of the technologies described above, the utility model provides a kind of electrokinetic cell protective device, and it comprises binding post, bus-bar and safety plate, and described binding post and bus-bar are electrically connected via safety plate.
As a kind of improvement of the utility model electrokinetic cell protective device, described safety plate comprises two plates that fully contact with binding post and bus-bar respectively, and two plates of safety plate are connected by a fuse-link.
As a kind of improvement of the utility model electrokinetic cell protective device, the cross-sectional area of fuse-link is not more than 4 square millimeters.
As a kind of improvement of the utility model electrokinetic cell protective device, described safety plate is installed on the safety plate support that insulating material makes, and the safety plate spacer support frame only is electrically connected the two between binding post and bus-bar by safety plate.
As a kind of improvement of the utility model electrokinetic cell protective device, described safety plate support is provided with the main body between two plates that are interval in safety plate, and the side edge of main body is offered a groove, and the fuse-link of described safety plate is contained in the described groove.
A kind of improvement as the utility model electrokinetic cell protective device; the main body of described safety plate support is provided with two annular boss; offer through hole respectively on two plates of described safety plate, the annular boss of safety plate support is contained in respectively in the corresponding through hole of plates of safety plate.
A kind of improvement as the utility model electrokinetic cell protective device; described binding post comprises electric current exit and the less link of diameter that diameter is bigger; described safety plate support and bus-bar all are sheathed on the link of described binding post, and are fixed by nut.
A kind of improvement as the utility model electrokinetic cell protective device is provided with insulating trip between described nut and the bus-bar.
As a kind of improvement of the utility model electrokinetic cell protective device, an end of described binding post is electrically connected with bus-bar by safety plate, and the other end is connected with the circuit of inside battery.
As a kind of improvement of the utility model electrokinetic cell protective device, an end of described bus-bar is electrically connected with binding post by safety plate, and the other end is connected with the circuit of outside batteries.
With respect to prior art; the utility model electrokinetic cell protective device is provided with safety plate between binding post and bus-bar; when electrokinetic cell is short-circuited; when causing electric current in the entire circuit to surpass maximum safe current; safety plate promptly can be melted the back and disconnect; thereby in time cut off the electric current of entire circuit, when avoiding security incident, also can protect electrokinetic cell and electronic equipment not to suffer damage.
Description of drawings
Below in conjunction with accompanying drawing and each embodiment, the utility model and useful technique effect thereof are elaborated, wherein:
Fig. 1 is the user mode schematic diagram of the utility model electrokinetic cell protective device.
Fig. 2 is the enlarged drawing of A part among Fig. 1.
Fig. 3 is the stereogram of the safety plate in the electrokinetic cell protective device shown in Figure 1.
Fig. 4 is the stereogram of the safety plate support of the utility model electrokinetic cell protective device.
Embodiment
See also Fig. 1 and Fig. 2, the utility model electrokinetic cell protective device comprises binding post 6, safety plate 5, safety plate support 4, bus-bar 3, insulating trip 2 and nut 1.
Wherein, bus-bar 3 is a laminated structure, and the one end offers through hole, is used for being connected with the binding post 6 of electrokinetic cell 80, and the other end then is connected (figure does not show) with electrokinetic cell 80 circuit external.
Binding post 6 is positive terminals of electrokinetic cell 80, and the one end is electrically connected with bus-bar 3 as shown in the figure, and the other end then is connected (figure does not show) with the positive plate of electrokinetic cell 80.Binding post 6 is the step cylinder, comprises electric current exit 62 and the less link 64 of diameter that diameter is bigger, and the tip of electric current exit 62 is electrically connected with positive plate in the inside of electrokinetic cell 80.The link 64 of binding post 6 is provided with screw thread 66.
In order to guarantee that security incident takes place because of electric current is excessive electrokinetic cell 80 Shi Buhui that is short-circuited, the utility model is provided with a safety plate 5 between bus-bar 3 and binding post 6.See also Fig. 3, safety plate 5 comprises that 52,54, two plates of two plates parallel to each other 52,54 connect by a slice fuse-link 56, and the cross-sectional area of fuse-link 56 is very little, is advisable to be not more than 4 square millimeters.The area sizableness of two plates 52,54 is respectively applied for bus-bar 3 and fully is connected with binding post 6.All offer a through hole on each plates 52,54, the through-hole diameter sizableness of the diameter of through hole and bus-bar 3, their diameter are all greater than the diameter of the link 64 of binding post 6.Need to prove that before installation, two plates 52,54 of safety plate 5 are not parallel to each other, but connect at an angle at fuse-link 56 places.
See also Fig. 4, safety plate support 4 is made by insulating material, and main body 42 is shaped as the lamellar body of offering through hole 43, and the link 64 that the diameter of through hole 43 can be held binding post 6 just passes, and closely cooperates with the outer wall of link 64.If necessary, can be provided with on the through-hole wall of safety plate support 4 and the suitable screw thread of the screw thread 66 of link 64 outer walls.The fuse-link 56 of the thickness of main body 42 and safety plate 5 is highly suitable, and its two sides is respectively equipped with an annular boss 44,46 coaxial with through hole 43.The external diameter of two boss 44,46 is identical, and all the through-hole diameter with the plates 52,54 of safety plate 5 is suitable, is used for link 64 insulation with binding post 6 of plates 52,54 and bus-bar 3.The side edge of main body 42 also is provided with a groove 48.
The lamellar body 22 of insulating trip 2 is provided with through hole, and the link 64 that the diameter of through hole can be held binding post 6 just passes, and closely cooperates with the outer wall of link 64.An end face of insulating trip 2 outwards convexes with annular protrusion 24, and the external diameter size of annular protrusion 24 is equal to or slightly less than the through-hole diameter size of bus-bar 3, therefore can be used at interval between the link 64 and bus-bar 3 of binding post 6, so that with the two insulation.
Be provided with screw thread in the nut 1, can be suitable with the link 64 of binding post 6.
During installation, as long as a slice plates 52 of safety plate 5 are sheathed on one of them boss 44 of safety plate support 4, and fuse-link 56 is aimed at the groove 48 of safety plate supports 4, afterwards at fuse-link 56 places bending safety plate 5, make it become as shown in Figure 3 shape, another sheet plates 54 can be sheathed on another boss 46 of safety plate support 4, thereby safety plate 5 is installed on the safety plate support 4.At this moment, the fuse-link 56 of safety plate 5 is contained in groove 48 internal fixation of safety plate support 4, and 42 of the main bodys of safety plate support 4 are contained between two plates 52,54 of safety plate 5 and play the spacer insulator effect.Safety plate support 4, bus-bar 3, insulating trip 2 are sheathed on the link 64 of binding post 6 successively, at last nut 1 are tightened on link 64, safety plate support 4, safety plate 5, bus-bar 3, insulating trip 2 are compacted and be fixed in binding post 6.At this moment, 6 of bus-bar 3 and binding posts are connected by safety plate 5, insulate fully in other places.
After using this protective device, during electrokinetic cell 80 discharges, electric current can only flow to bus-bar 3 by safety plate 5 from binding post 6.In case the inside or the outside of electrokinetic cell 80 are short-circuited; when causing electric current in the entire circuit to surpass maximum safe current; the fuse-link 56 of safety plate 5 promptly can be melted the back and disconnect; thereby in time cut off the electric current of entire circuit; when avoiding that security incident takes place, also can protect electrokinetic cell 80 and electronic equipment not to suffer damage.
Certainly, in other embodiments, binding post 6 can be a negative terminal also, that is to say, the utility model electrokinetic cell protective device also can be installed on the negative pole of electrokinetic cell 80.
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 (10)
1, a kind of electrokinetic cell protective device, it comprises binding post and bus-bar, it is characterized in that: described electrokinetic cell protective device also comprises safety plate, and described binding post and bus-bar are electrically connected via safety plate.
2, electrokinetic cell protective device according to claim 1 is characterized in that: described safety plate comprises two plates that fully contact with binding post and bus-bar respectively, and two plates of safety plate are connected by a fuse-link.
3, electrokinetic cell protective device according to claim 2 is characterized in that: the cross-sectional area of described fuse-link is not more than 4 square millimeters.
4, according to claim 2 or 3 described electrokinetic cell protective devices, it is characterized in that: described safety plate is installed on the safety plate support that insulating material makes, and the safety plate spacer support frame only is electrically connected the two between binding post and bus-bar by safety plate.
5, electrokinetic cell protective device according to claim 4; it is characterized in that: described safety plate support is provided with the main body between two plates that are interval in safety plate; the side edge of main body is offered a groove, and the fuse-link of described safety plate is contained in the described groove.
6, electrokinetic cell protective device according to claim 5; it is characterized in that: the main body of described safety plate support is provided with two annular boss; offer through hole respectively on two plates of described safety plate, the annular boss of safety plate support is contained in respectively in the corresponding through hole of plates of safety plate.
7, electrokinetic cell protective device according to claim 6; it is characterized in that: described binding post comprises electric current exit and the less link of diameter that diameter is bigger; described safety plate support and bus-bar all are sheathed on the link of described binding post, and are fixed by nut.
8, electrokinetic cell protective device according to claim 7 is characterized in that: be provided with insulating trip between described nut and the bus-bar.
9, electrokinetic cell protective device according to claim 1 is characterized in that: an end of described binding post is electrically connected with bus-bar by safety plate, and the other end is connected with the circuit of inside battery.
10, electrokinetic cell protective device according to claim 1 is characterized in that: an end of described bus-bar is electrically connected with binding post by safety plate, and the other end is connected with the circuit of outside batteries.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200502553U CN201365119Y (en) | 2009-01-16 | 2009-01-16 | Power battery protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200502553U CN201365119Y (en) | 2009-01-16 | 2009-01-16 | Power battery protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201365119Y true CN201365119Y (en) | 2009-12-16 |
Family
ID=41475788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200502553U Expired - Lifetime CN201365119Y (en) | 2009-01-16 | 2009-01-16 | Power battery protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201365119Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064306A (en) * | 2010-12-15 | 2011-05-18 | 常承立 | Long-acting large-capacity lead-bearing lithium battery |
| CN102332373A (en) * | 2010-12-31 | 2012-01-25 | 东莞新能源科技有限公司 | Fuse and lithium ion secondary battery with same |
| CN102916158A (en) * | 2011-08-05 | 2013-02-06 | 深圳市沃特玛电池有限公司 | Safety structure for power battery pack |
| CN103178236A (en) * | 2013-03-07 | 2013-06-26 | 华霆（合肥）动力技术有限公司 | Lithium battery external over-current protection device |
| CN104737328A (en) * | 2012-10-26 | 2015-06-24 | 三洋电机株式会社 | Power source device, electric vehicle comprising power source device, accumulator device, and method for fabrication of power source device |
-
2009
- 2009-01-16 CN CNU2009200502553U patent/CN201365119Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064306A (en) * | 2010-12-15 | 2011-05-18 | 常承立 | Long-acting large-capacity lead-bearing lithium battery |
| CN102332373A (en) * | 2010-12-31 | 2012-01-25 | 东莞新能源科技有限公司 | Fuse and lithium ion secondary battery with same |
| CN102332373B (en) * | 2010-12-31 | 2014-12-10 | 东莞新能源科技有限公司 | Fuse and lithium ion secondary battery with same |
| CN102916158A (en) * | 2011-08-05 | 2013-02-06 | 深圳市沃特玛电池有限公司 | Safety structure for power battery pack |
| CN102916158B (en) * | 2011-08-05 | 2016-03-02 | 深圳市沃特玛电池有限公司 | A kind of safeguard construction of power battery pack |
| CN104737328A (en) * | 2012-10-26 | 2015-06-24 | 三洋电机株式会社 | Power source device, electric vehicle comprising power source device, accumulator device, and method for fabrication of power source device |
| CN104737328B (en) * | 2012-10-26 | 2017-03-08 | 三洋电机株式会社 | Supply unit and possess the electric vehicle of supply unit and the manufacture method of electrical storage device, supply unit |
| CN103178236A (en) * | 2013-03-07 | 2013-06-26 | 华霆（合肥）动力技术有限公司 | Lithium battery external over-current protection device |
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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: 20091216 |
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| CX01 | Expiry of patent term |