CN203301191U - Lithium ion battery system with automatic cut-out protection function - Google Patents
Lithium ion battery system with automatic cut-out protection function Download PDFInfo
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- CN203301191U CN203301191U CN2013203220339U CN201320322033U CN203301191U CN 203301191 U CN203301191 U CN 203301191U CN 2013203220339 U CN2013203220339 U CN 2013203220339U CN 201320322033 U CN201320322033 U CN 201320322033U CN 203301191 U CN203301191 U CN 203301191U
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- ion battery
- module
- lithium
- lithium ion
- closed type
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 86
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 86
- 210000004027 cell Anatomy 0.000 claims description 48
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 34
- 229910052744 lithium Inorganic materials 0.000 claims description 34
- 230000000694 effects Effects 0.000 abstract description 8
- 238000007599 discharging Methods 0.000 abstract 1
- 230000006870 function Effects 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a lithium ion battery system with an automatic cut-out protection function. The system comprises a plurality of lithium ion battery modules connected in series, and the plurality of lithium ion battery modules are connected through a normally-closed relay J and a load. Each lithium ion battery module comprises a module anode and a module cathode. Each lithium ion battery module is provided with a two-core connector clip. One end of the two-core connector clip is connected with the module anode, and the other end of the two-core connector clip is connected with a normally-closed travel switch, a divider resistor R, and a module cathode in sequence. Two ends of the two-core connector clip are connected with two control ends of the normally-closed relay J in parallel. The normally-closed travel switch is disposed on a battery surface with a lithium ion battery in the lithium ion battery module through an automatic cut-out protection structure. The lithium ion battery system can satisfy operational need of relatively large current. When a battery is overcharged or overdischarged, the system can disconnect a charging circuit or a discharging circuit in time, thereby having effect of preventing overcharging and overdischarging.
Description
Technical field
The utility model relates to the battery technology field, particularly relates to a kind of lithium-ion battery systems with auto-cutout defencive function.
Background technology
At present, lithium ion battery have specific energy high, recycle often, the advantage such as memory time is long, not only on portable electric appts, as mobile phone, Digital Video and laptop computer, be used widely, and be widely used in the big-and-middle-sized electrical equipment aspects such as electric automobile, electric bicycle and electric tool.
For lithium ion battery and lithium ion battery group, it relies on integrated circuit (IC) to carry out electronic circuit control substantially in the protection that overcharges, anti-overcharge respond well, has obtained the generally approval of industry.At present, in the battery consumer product area, lithium ion battery is the use of single battery mostly, and the IC quantity that it overcharges protection needs is 1, and its cost can be accepted, and effect can be satisfied the demand.
But, at lithium-ion-power cell, develop into main flow from now on, under the occasions such as electric bicycle, a plurality of battery series connection or the use that is connected in parallel should need to be realized to high reliability, meet again the large current work needs of battery connecting piece.At present, the safeguard structure holistic cost valency that overcharges of existing lithium-ion battery systems is high, total system uses extremely unstable in vibration environment, failure rate is high, cause the expensive of lithium-ion-power cell and low reliability, seriously restricted the large scale application of lithium ion battery in the electric bicycle field.
Therefore; at present in the urgent need to developing a kind of technology; it can meet larger current work needs; at lithium ion battery, overcharge or during overdischarge; in time disconnect charge circuit or the discharge loop of lithium-ion battery systems, realize the auto-cutout protection, play effective effect of anti-overcharge and anti-overdischarge; reduce simultaneously the production cost of lithium ion battery, improve the reliability of battery product.
The utility model content
in view of this, the purpose of this utility model is to provide a kind of lithium-ion battery systems with auto-cutout defencive function, it can meet larger current work needs, at lithium ion battery, overcharge or during overdischarge, in time disconnect charge circuit or the discharge loop of lithium-ion battery systems, realize the auto-cutout protection, play effective effect of anti-overcharge and anti-overdischarge, reduce simultaneously the production cost of lithium ion battery, improve the reliability of battery product, the battery product that strengthens the user uses impression, be conducive to improve the market competitiveness of lithium ion battery, be of great practical significance.
For this reason, the utility model provides a kind of lithium-ion battery systems with auto-cutout defencive function, comprises a plurality of lithium ionic cell modules that are cascaded, and described a plurality of lithium ionic cell modules are connected with load by a closed type relay J;
On each lithium ionic cell module, include module positive pole and module negative pole, two core plug connectors are installed on each lithium ionic cell module, one end of described two core plug connectors is connected with described module positive pole, and the other end of described two core plug connectors connects closed type travel switch, divider resistance R and described module negative pole successively;
Two control ends of the two ends of described two core plug connectors and described closed type relay J are in parallel;
Described closed type travel switch is arranged on by auto-cutout protection structure the lithium ion battery cell surface that has in described lithium ionic cell module, described auto-cutout protection structure be one can be by the structure of closed type travel switch conducting when the lithium ionic cell module volume expands.
Wherein, described lithium ionic cell module has a plurality of lithium ion battery cells, described a plurality of lithium ion battery cell series connection and/or the formation lithium ion battery group that is parallel together;
The top fixed placement of described lithium ion battery group has a fixed head, the left end of described fixed head is fixedly installed described closed type travel switch, the left part of described closed type travel switch has operating key, be positioned on the fixed head of below, described operating key left side and have a pilot hole, the top of a guide rail is pushed and is contacted mutually with described operating key after passing described pilot hole, and the bottom of described guide rail is fixedly connected with the bottom surface of described lithium ion battery group.
Wherein, described lithium ionic cell module comprises module upper cover and module lower casing, and described module upper cover is positioned at described module lower casing top;
Described a plurality of lithium ion battery cell laterally is vertically set in described module lower casing from top to bottom.
Wherein, before and after the right-hand member of described module upper cover, both sides are respectively arranged with described module positive pole and module negative pole, and the back side of described closed type travel switch and right flank have respectively the first terminals and the second terminals;
Described the first terminals are connected with described two core plug connectors, and described the second terminals are connected with described divider resistance R.
Wherein, described guide rail is the L-type guide rail.
visible by the technical scheme that above the utility model provides, compared with prior art, the utility model provides a kind of lithium-ion battery systems with auto-cutout defencive function, it can meet larger current work needs, at lithium ion battery, overcharge or during overdischarge, in time disconnect charge circuit or the discharge loop of lithium-ion battery systems, realize the auto-cutout protection, play effective effect of anti-overcharge and anti-overdischarge, reduce simultaneously the production cost of lithium ion battery, improve the reliability of battery product, the battery product that strengthens the user uses impression, be conducive to improve the market competitiveness of lithium ion battery, be of great practical significance.
The accompanying drawing explanation
A kind of structural representation with lithium-ion battery systems of auto-cutout defencive function that Fig. 1 provides for the utility model;
In a kind of lithium-ion battery systems with auto-cutout defencive function that Fig. 2 provides for the utility model, has the structural representation of a kind of embodiment of any one lithium ionic cell module of auto-cutout protection structure;
In figure: 1 is the module lower casing, and 2 is lithium ion battery cell, and 3 is guide rail, 4 is pilot hole, and 5 is the closed type travel switch, and 6 is the first terminals, 8 is the module upper cover, and 9 is the module positive pole, and 10 is the module negative pole, 11 is fixed head, 12 is the second terminals, and 13 is operating key, and 100 is lithium ionic cell module, 200 are load, and 300 is two core plug connectors.
Embodiment
In order to make those skilled in the art person understand better the utility model scheme, the utility model is described in further detail below in conjunction with drawings and embodiments.
Referring to Fig. 1; the utility model provides a kind of lithium-ion battery systems with auto-cutout defencive function; it comprises a plurality of lithium ionic cell modules that are cascaded 100; described a plurality of lithium ionic cell module 100 is connected with a load 200 by a closed type relay J, is used to load 200 the work electricity consumption is provided and is charged by external power source.
Referring to Fig. 1, on each lithium ionic cell module 100, include module anodal 9 and module negative pole 10, two core plug connectors 300 are installed on each lithium ionic cell module 100, described two core plug connectors 300 are as the control end of each lithium ionic cell module 100, one end of described two core plug connectors 300 directly is connected with described module positive pole 9, and the other end of described two core plug connectors 300 connects closed type travel switch 5, divider resistance R and described module negative pole 10 successively.
In the utility model, referring to Fig. 1, two control ends of the two ends of described two core plug connectors 300 and described closed type relay J are in parallel.
In the utility model; described closed type travel switch 5 is arranged on by an auto-cutout protection structure lithium ion battery surface that has in described lithium ionic cell module 100; described auto-cutout protection structure be one can be by the structure of closed type travel switch 5 conductings when the lithium ionic cell module volume expands; thereby make the lithium ion battery surface that has in lithium ionic cell module 100 because overcharge or when overdischarge and volumetric expansion; can in time disconnect charge circuit and electric discharge, play effective effect of anti-overcharge and anti-overdischarge.
For the utility model, it should be noted that, for the utility model, because lithium-ion battery systems is used by a plurality of lithium ionic cell module 100 series connection, the control end of the control end of closed type relay J and each lithium ionic cell module 100 (i.e. the two ends of two core plug connectors 300) is connected in parallel use.when the lithium ion battery in any one lithium ionic cell module 100 overcharges or during overdischarge, because closed type travel switch 5 has auto-cutout protection structure, can make 5 conductings of closed type travel switch, thereby with divider resistance R, two control ends that two core plug connectors 300 are controlled the closed type relay J together form loop, the closed type relay J is started working and is in off-state, thereby make the whole charge or discharge major loop of lithium-ion battery systems cut off, make the whole charge or discharge loop of lithium-ion battery systems can not continue charge or discharge, avoided lithium ion battery due to the battery leakage that overcharges or overdischarge causes, blast, the security incident such as on fire, thereby improved the fail safe that battery pack is used.
Also it should be noted that, under the condition of overcharging, volume can sharply expand due to the rectangular lithium ion battery core, and this characteristic that the utility model takes full advantage of the rectangular lithium ion battery core realizes.Due to battery-operated motor cycle, the high-power electric appliances such as electric tool, electric current is higher in the course of the work, can reach 80 ~ 100A left and right, traditional control class device cannot meet so big electric current at all, can only select in the case relay to use as the switch of break-make, consumable is arranged when the conducting due to the open type relay, energy to battery pack is lossy, and for addressing this problem, the utility model is selected the closed type relay, only in unexpected situation, control end could form loop, and relay is disconnected, and guarantees the safety of battery pack.
Below in conjunction with a specific embodiment, a kind of auto-cutout protection structure that the closed type travel switch 5 in the utility model lithium ionic cell module shown in Figure 1 has is described.
In the lump referring to Fig. 1, Fig. 2; a kind of lithium-ion battery systems with auto-cutout defencive function that provides for the utility model; for any one lithium ionic cell module 100 wherein; it comprises module upper cover 8 and module lower casing 1; described module upper cover 8 is positioned at described module lower casing 1 top; under normal operating condition, described module upper cover 8 and module lower casing 1 bond together.
In the utility model, described module lower casing 1 is open-topped, hollow housing.In described module lower casing 1, laterally be vertically installed with from top to bottom a plurality of square lithium ion battery cells 2, described a plurality of lithium ion battery cell 2 series connection and/or the formation lithium ion battery group that is parallel together.
In the utility model, referring to Fig. 2, before and after the right-hand member of described module upper cover 8, both sides are respectively arranged with described module anodal 9 and module negative pole 10, described module anodal 9 and module negative pole 10 are respectively positive pole and the negative pole of described lithium-ion battery systems, thereby the work electricity consumption are provided and are charged by external power source for external electric equipment (as electric bicycle).
In the utility model, the top fixed placement of described lithium ion battery group has a fixed head 11, and the left end of described fixed head 11 is fixedly installed described closed type travel switch 5, and the left part of described closed type travel switch 5 has operating key 13.
The back side of described closed type travel switch 5 and right flank have respectively the first terminals 6 and the second terminals 12, and described the first terminals 6 are connected with described two core plug connectors 300, and described the second terminals 12 are connected with described divider resistance R.
Referring to Fig. 2, be positioned on the fixed head 11 of described operating key 13 belows, left sides and have a pilot hole 4, the top of a guide rail 3 is pushed and is contacted mutually with described operating key 13 after passing described pilot hole 4, the top of described guide rail 3 can be pressed into described operating key 13 in closed type travel switch 5, make the first terminals 6 and second terminals 12 of described closed type travel switch 5 be conducted, the bottom of described guide rail 3 is fixedly connected with the bottom surface of described lithium ion battery group.
On specific implementation, described guide rail 3 is preferably the L-type guide rail.It should be noted that, described guide rail 3 is not limited to the L-type guide rail, according to user's need of production and the shape of concrete battery pack, can also be other shape and structure.
It should be noted that, for the utility model, because lithium-ion battery systems is used by 100 series connection of a plurality of lithium ionic cell modules, the use that is connected in parallel of the control end of the control end of closed type relay J and each lithium ionic cell module 100.When the lithium ion battery group that is comprised of a plurality of lithium ion battery cells 2 is overcharged or during overdischarge at the module lower casing 1 of any one lithium ionic cell module 100, the lithium ion battery group will volumetric expansion, thereby promoting to be positioned at the fixing fixed head 11 in its top constantly moves up, at this moment, guide rail 3 can not move up because its bottom is fixedly connected with the bottom surface of lithium ion battery group.
when the lithium ion battery group continues to expand, the position of fixed head 11 will constantly move up, this will cause guide rail 3 more and more less with the part area that contacts of the operating key 13 of closed type travel switch 5, when fixed head 11 is moved upwards up to certain altitude, on fixed head 11 operating key 13 of closed type travel switch 5 descend most edge will surpass L-type guide rail 3 go up edge most, make the extruding of operating key 13 getaways 3, operating key 13 is from the interior ejection of closed type travel switch 5, and then closed type travel switch 5 conductings, thereby with divider resistance R, two control ends that two core plug connectors 300 are controlled the closed type relay J together form loop, the closed type relay J is started working and is in off-state, thereby make the whole charge or discharge major loop of lithium-ion battery systems cut off, make the whole charge or discharge loop of lithium-ion battery systems can not continue charge or discharge, avoided lithium ion battery due to the battery leakage that overcharges or overdischarge causes, blast, the security incident such as on fire, thereby improved the fail safe that battery pack is used.
Therefore; the lithium-ion battery systems that provides for the utility model; it is structurally without using the additives for overcharge protection integrated circuit (IC); by science, design the structure of auto-cutout protection; can overcharge or during overdischarge at lithium ion battery; in time disconnect charge circuit and electric discharge, play effective effect of anti-overcharge and anti-overdischarge.
in sum, compared with prior art, a kind of lithium-ion battery systems with auto-cutout defencive function that the utility model provides, it can meet larger current work needs, at lithium ion battery, overcharge or during overdischarge, in time disconnect charge circuit or the discharge loop of lithium-ion battery systems, realize the auto-cutout protection, play effective effect of anti-overcharge and anti-overdischarge, reduce simultaneously the production cost of lithium ion battery, improve the reliability of battery product, the battery product that strengthens the user uses impression, be conducive to improve the market competitiveness of lithium ion battery, be of great practical significance.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (5)
1. lithium-ion battery systems with auto-cutout defencive function, it is characterized in that, comprise a plurality of lithium ionic cell modules that are cascaded (100), described a plurality of lithium ionic cell modules (100) are connected with load (200) by a closed type relay J;
On each lithium ionic cell module (100), include module positive pole (9) and module negative pole (10), two core plug connectors (300) are installed on each lithium ionic cell module (100), one end of described two core plug connectors (300) is connected with described module anodal (9), and the other end of described two core plug connectors (300) connects closed type travel switch (5), divider resistance R and described module negative pole (10) successively;
Two control ends of the two ends of described two core plug connectors (300) and described closed type relay J are in parallel;
Described closed type travel switch (5) is arranged on by auto-cutout protection structure the lithium ion battery cell surface that has in described lithium ionic cell module (100), described auto-cutout protection structure be one can be by the structure of closed type travel switch (5) conducting when the lithium ionic cell module volume expands.
2. lithium-ion battery systems as claimed in claim 1, it is characterized in that, described lithium ionic cell module (100) has a plurality of lithium ion battery cells (2), and described a plurality of lithium ion battery cells (2) are connected and/or are parallel together and form the lithium ion battery group;
The top fixed placement of described lithium ion battery group has a fixed head (11), the left end of described fixed head (11) is fixedly installed described closed type travel switch (5), the left part of described closed type travel switch (5) has operating key (13), be positioned on the fixed head (11) of described operating key (13) left side below and have a pilot hole (4), the top of a guide rail (3) is pushed and is contacted mutually with described operating key (13) after passing described pilot hole (4), and the bottom of described guide rail (3) is fixedly connected with the bottom surface of described lithium ion battery group.
3. lithium-ion battery systems as claimed in claim 2, is characterized in that, described lithium ionic cell module (100) comprises module upper cover (8) and module lower casing (1), and described module upper cover (8) is positioned at described module lower casing (1) top;
Described a plurality of lithium ion battery cell (2) laterally is vertically set in described module lower casing (1) from top to bottom.
4. lithium-ion battery systems as claimed in claim 3, it is characterized in that, before and after the right-hand member of described module upper cover (8), both sides are respectively arranged with described module anodal (9) and module negative pole (10), and the back side of described closed type travel switch (5) and right flank have respectively the first terminals (6) and the second terminals (12);
Described the first terminals (6) are connected with described two core plug connectors (300), and described the second terminals (12) are connected with described divider resistance R.
5. lithium-ion battery systems as claimed in claim 2, is characterized in that, described guide rail (3) is the L-type guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203220339U CN203301191U (en) | 2013-06-06 | 2013-06-06 | Lithium ion battery system with automatic cut-out protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203220339U CN203301191U (en) | 2013-06-06 | 2013-06-06 | Lithium ion battery system with automatic cut-out protection function |
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| Publication Number | Publication Date |
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| CN203301191U true CN203301191U (en) | 2013-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013203220339U Expired - Fee Related CN203301191U (en) | 2013-06-06 | 2013-06-06 | Lithium ion battery system with automatic cut-out protection function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609698A (en) * | 2014-11-14 | 2016-05-25 | 现代自动车株式会社 | Battery system improving operation reliability of swelling cid |
-
2013
- 2013-06-06 CN CN2013203220339U patent/CN203301191U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609698A (en) * | 2014-11-14 | 2016-05-25 | 现代自动车株式会社 | Battery system improving operation reliability of swelling cid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190412 Address after: 252000 No.5 Office Building of Caijin Building, 111 Changjiang Road, Liaocheng High-tech Zone, Shandong Province Patentee after: Shandong Massive New Materials Technology Co.,Ltd. Address before: 311106 No. 102-5, 101 Shunda Road, Qianjiang Economic Development Zone, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU PEOPLE BATTERY Co.,Ltd. |
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| 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: 20131120 |