CN204011518U - A kind of electric vehicle accumulator box with overtemperature protection - Google Patents
A kind of electric vehicle accumulator box with overtemperature protection Download PDFInfo
- Publication number
- CN204011518U CN204011518U CN201420339107.4U CN201420339107U CN204011518U CN 204011518 U CN204011518 U CN 204011518U CN 201420339107 U CN201420339107 U CN 201420339107U CN 204011518 U CN204011518 U CN 204011518U
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- temperature
- storage battery
- tds
- temperature control
- detect switch
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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
Abstract
The utility model discloses a kind of electric vehicle accumulator box with overtemperature protection, comprise low temperature temperature detect switch (TDS) (001), high-temperature control switch (002), storage battery (003) and diode (004) etc.; Low temperature temperature detect switch (TDS) (001) and diode (004) are in parallel forms low temperature temperature control module, then is together in series with high-temperature control switch (002), storage battery (003); Low temperature temperature control module is used for protecting the pyrolytic damage of crossing that storage battery (003) avoids in charging process; High-temperature control switch (002) is used for protection circuit short circuit, causes wire or storage battery (003) moment overheatedly to cause the even generation of fire incident of electric motor car fault.
Description
Technical field
The utility model relates to a kind of electric vehicle accumulator box with overtemperature protection, belongs to hot resist technology field, especially, for the electric motor car that uses storage battery, is equally applicable to the overtemperature protection of electric automobile.
Background technology
Electric motor car generally refers to Moped Scooter or electric bicycle, and due to the low price of electric motor car, operating cost is low, is subject to liking very much of common salary family, very high in plains region popularity rate, has become people's main traffic instrument.
The problem of electric motor car maximum is storage battery, within general one to two year, will change once, and be a part for electric motor car use cost maximum, vast electric motor car user pays close attention to the problem of storage battery very much.
The charging of storage battery is a matter of great account feelings in electric motor car use procedure, and electric vehicle accumulator once charges generally needs several hours even more than ten hour, and it is far-fetched allowing user constantly pay close attention to storage battery charging.
Electric car charger charges to storage battery, is generally to adopt stepped charging method: first large current charge, when battery voltage reaches certain numerical value, changes trickle charge into, between several watts to tens watts of charge powers, to reach best charging effect.
Trickle charge is charged with substantially invariable little electric current exactly, under normal circumstances, within more than ten hour, can make the electric weight of storage battery sufficient.
Though trickle charge has many benefits, but under abnormal condition, also can cause very serious consequence: within normal time, storage battery has reached the electric state that is full of, especially in the higher and situation of ambient temperature, if forgotten cut-out light source of charger because user is busy with other things, cause the charging interval long, the power of trickle charge has just become heat completely, when at this moment if the heat-sinking capability of battery jar box is less than the calorific capacity of storage battery, the temperature of storage battery can constantly raise, when battery Temperature is elevated to uniform temperature, the plastic casing softening transform of storage battery, cause the structural change of storage battery inside, " bulge " phenomenon being commonly called as exactly, gently cause battery capacity to diminish, heavy cause storage battery to scrap, even may cause fire incident.
In addition, the height of the internal resistance of storage battery is an important indicator weighing storage battery quality, and manufacturer can reduce this internal resistance to improve storage battery quality as far as possible.Lower storage battery internal resistance can improve the operating efficiency of storage battery, reduce storage battery caloric value, but this obvious advantage also can become fatal shortcoming sometimes, because storage battery internal resistance lower, comprise that it connects conductor resistance can not be almost zero, because electric motor car is under running status, between storage battery, storage battery connecting line, understand ceaselessly frictional impact, if connecting wire, the positive and negative electrode of storage battery therefore caused short circuit, storage battery can produce very large electric current in moment, thus the fire incident of causing; The nearly all this wire short circuit of incidents of spontaneous combustion of the appearance such as electric motor car, motorcycle, automobile causes.
Above existing problems are not also had to good solution at present, can only be awareness of safety by improving people, strengthen vehicle maintenance and reduce the incidence of accident, but will to accomplish to stop be almost impossible.
In order to overcome the above problems, people are making great efforts to explore solution.200820163035.7) and " preventing the charging circuit for electric vehicles that battery is overheated " (201320229175.0) the utility model is invented in order to address this problem, and the invention similar with the utility model has: " a kind of overheat protector for battery of electric vehicle " (patent No.:.
" a kind of overheat protector for battery of electric vehicle " patent is the invention about heat protection component structure, is not a complete protection scheme; In battery jar box, to utilize thermometal to make a temperature detect switch (TDS), when the temperature of described temperature detect switch (TDS) in battery jar box reaches certain value, can make the electric loop of storage battery disconnect, storage battery can not charge, can not carry out electricity consumption, reliability under summer high temperature environment is very unstable, can affect the use of electric motor car; But the temperature of the temperature in battery jar box and the temperature of storage battery, especially every storage battery is distinguishing, this just can not protect each storage battery preferably.
Patent is laying temperature transducer in battery jar box " to prevent the charging circuit for electric vehicles that battery is overheated "; and in battery jar box, add a wire and control the operating state of charger and carry out charge protection; need charger and battery case to be transformed simultaneously; equipment cost is compared with high and defencive function is single, and reliability is lower.
Summary of the invention
The utility model is in order to solve electric motor car in the heat protection problem of storage battery charged state and storage battery power supply state; the a set of total solution proposing; can reach the comprehensive, reliable and stable of protection; and cost is low; only need the electric wiring in transformation battery case; charger is not done to requirement, improved versatility, can be used as an attraction of electric motor car producer product yet.
The utility model adopts following technical scheme:
The high charge temperature (greatly about 70 degree left and right) producing while 1, adopting storage battery (003) charging under a little higher than Normal Environmental Temperature of operating temperature, as low temperature temperature detect switch (TDS) (001).
2, adopt operating temperature lower than the softening temperature of storage battery (003) plastic casing, higher than the maximum operating temperature (greatly about 150 degree left and right) of storage battery under Normal Environmental Temperature (003), as high-temperature control switch (002).
3, because the temperature of storage battery (003) under running state of electric motor car likely reaches low temperature temperature detect switch (TDS) (001) operating temperature, cut off the normal power supply loop of storage battery (003), therefore need to be equipped with a diode (004), in parallel with low temperature temperature detect switch (TDS) (001), make low temperature temperature detect switch (TDS) (001) be unlikely to affect the normal work of electric motor car.
low temperature temperature detect switch (TDS) (001) is connected in series in the electric loop of storage battery group, described low temperature temperature detect switch (TDS) (001) is close to the shell of storage battery (003), can accurately detect corresponding storage battery (003) temperature, when storage battery (003) temperature reaches the operating temperature of low temperature temperature detect switch (TDS) (001), low temperature temperature detect switch (TDS) (001) disconnects the charge circuit of storage battery (003), when storage battery (003) temperature is reduced to certain numerical value, then start charging; Because diode (004) is and low temperature temperature control module of low temperature temperature detect switch (TDS) (001) formation in parallel, after in described low temperature temperature control module, any low temperature temperature detect switch (TDS) (001) disconnects, described low temperature temperature control module has just formed unilateral conduction, described unilateral conduction can only be powered the storage battery (003) in electric loop outside battery jar box, and outside can not be to storage battery (003) charging in battery jar box.
High-temperature control switch (002) is to be also connected in series in the electric loop of storage battery group, described high-temperature control switch (002) is close to the shell of storage battery (003), can accurately detect corresponding storage battery (003) temperature, when battery Temperature reaches a high temperature the operating temperature of temperature detect switch (TDS) (002), high-temperature control switch (002) disconnects the electric loop of storage battery (003), storage battery can not charge, can not be to externally fed, the superheating phenomenon that can avoid storage battery (003) short circuit to occur, when storage battery (003) temperature is reduced to certain numerical value, high-temperature control switch (002) restores to the original state, the electric loop of storage battery (003) enters again normal condition.
No matter electric motor car is in running status or charged state, high-temperature control switch (002) can disconnect the electric loop of storage battery group when storage battery (003) excess Temperature, avoids causing the accident; Low temperature temperature detect switch (TDS) (001) is protected storage battery (003) in order to avoid overheated " bulge " phenomenon causing of overcharging causes damage to storage battery (003); Diode (004) can be avoided under running state of electric motor car, the improper protection action of the low temperature temperature detect switch (TDS) (001) causing due to the normal temperature rise of storage battery (003), the impact on the normal work of electric motor car causing.
The utility model compared with prior art has obvious advantage: 1, there will not be storage battery (003) " bulge " phenomenon causing because overcharging to cause storage battery (003) to scrap; 2, there will not be because connecting wire wearing and tearing short circuit and cause fire incident; 3, there is not superheating phenomenon in protection storage battery (003), extends storage battery (003) life-span; 4, alleviate user's burden, needn't at every moment worry about the charging operations of electric motor car.
Accompanying drawing explanation
Fig. 1 is scheme one circuit theory diagrams; Fig. 2 is scheme two circuit theory diagrams; Fig. 3 is the material object assembling schematic diagram of scheme one; Fig. 4 is the temperature detect switch (TDS) schematic diagram of single temperature-sensitive face; Fig. 5 is the temperature detect switch (TDS) schematic diagram of two temperature-sensitive faces; 001-low temperature temperature detect switch (TDS), 002-high-temperature control switch, 003-storage battery, 004-diode, 005-positive electrode, 006-negative electrode, temperature-sensitive face on 007-temperature detect switch (TDS) lead-in wire one, 008-temperature detect switch (TDS) lead-in wire two, 009-temperature detect switch (TDS), temperature-sensitive face under 010-temperature detect switch (TDS).
Embodiment
As shown in the figure, existing electric vehicle accumulator box is transformed or redesigned, need in existing storage battery electric loop, increase the electric components such as low temperature temperature detect switch (TDS) (001), high-temperature control switch (002), diode (004).
Low temperature temperature detect switch (TDS) (001) and high-temperature control switch (002) can adopt the closed type KSD301 temperature detect switch (TDS) of same type; KSD301 is that the dish-shape component that adopts thrermostatic bimetal-plate to make is made temperature-sensing element, utilize dish-shape component under temperature action, to produce the principle that moment beats, contact is moved rapidly, cause that outside temperature detect switch (TDS) lead-in wire one (007) and temperature detect switch (TDS) lead-in wire two (008) are switched on or switched off, and reach the object of control circuit switch; KSD301 can provide serial operating temperature product, convenient, flexible use within the scope of 0 ~ 240 degree.
The temperature sensing face of temperature detect switch (TDS) has one side and two-sided, the temperature detect switch (TDS) of single temperature-sensitive face can only have the one side can sensing temperature, the temperature detect switch (TDS) of two temperature-sensitive faces can have two face sensing temperatures, and two temperature-sensitive face has one to reach the action that operating temperature can cause temperature detect switch (TDS) contact.
For the temperature detect switch (TDS) of single temperature-sensitive face, low temperature temperature detect switch (TDS) (001) and high-temperature control switch (002) are placed on respectively the bottom of protected storage battery, so that temperature-sensitive face (009) temperature of sensing storage battery more accurately on temperature detect switch (TDS).
Temperature detect switch (TDS) for two temperature-sensitive faces; low temperature temperature detect switch (TDS) (001) and high-temperature control switch (002) are placed on respectively in the middle of two storage batterys of protected stacked placement, so that temperature-sensitive face (009) and lower temperature-sensitive face (010) temperature of two storage batterys of sensing more accurately on temperature detect switch (TDS).
The 48V electric motor car generally using at present of take is example, and the storage battery group in battery jar box generally comprises 4 storage batterys (003), low temperature temperature detect switch (TDS) (001) and the general paired configuration of high-temperature control switch (002), and the quantity of general no more than storage battery (003); The quantity of the general no more than low temperature temperature detect switch (TDS) of diode (004) (001), is equipped with one conventionally.
In battery jar box, low temperature temperature detect switch (TDS) (001), high-temperature control switch (002), diode (004) and storage battery (003) form an electric loop; Low temperature temperature detect switch (TDS) (001), high-temperature control switch (002) and diode (004) design and produce round storage battery (003), are used for protecting the normal work of storage battery (003).
Low temperature temperature control module: described low temperature temperature control module includes low temperature temperature detect switch (TDS) (001) and diode (004); The quantity of described diode (004) can with low temperature temperature detect switch (TDS) (001) as many, a diode (004) and a low temperature temperature detect switch (TDS) (001) are connected in parallel and form a low temperature temperature control module, and described low temperature temperature control module flexibly series system is connected in described electric loop; Described diode (004) also can only have one, and all low temperature temperature detect switch (TDS)s (001) directly form a series arm on electric, described series arm again with described diode (004) formation in parallel low temperature temperature control module.
Described low temperature temperature control module is done as a whole working, after in described low temperature temperature control module, any low temperature temperature detect switch (TDS) (001) moves, disconnect the charge circuit of storage battery (003), just make described low temperature temperature control module form unilateral conduction, described unilateral conduction can only be powered the storage battery (003) in described electric loop outside battery jar box, and outside can not be to storage battery (003) charging in battery jar box.
Low temperature temperature detect switch (TDS) (001) and high-temperature control switch (002) generally adopt the closed type temperature detect switch (TDS) of same type, and concrete placement location is also basic identical.
Described high-temperature control switch (002) also can configure different quantity, and the mode with series connection is connected in described electric loop separately, while being equipped with many high-temperature control switches (002), can have different electrical connection compound modes:
Scheme one, low temperature temperature detect switch (TDS) (001) and high-temperature control switch (002) are the temperature detect switch (TDS)s that adopts single temperature-sensitive face, respectively with the quantity of storage battery (003) as many, a high-temperature control switch (002) and a storage battery (003) series connection form one group of high-temperature control storage battery group; Many group high-temperature control storage battery groups, low temperature temperature control module directly link together in the mode of series connection again; High-temperature control switch (002) is placed on corresponding storage battery (003) bottom of control.
Scheme two, low temperature temperature detect switch (TDS) (001) and high-temperature control switch (002) are the temperature detect switch (TDS)s that adopts single temperature-sensitive face, respectively with the quantity of storage battery (003) as many, many high-temperature control switches (002) and many storage batterys (003) link together separately in the mode of series connection respectively, form high-temperature control switches set and storage battery group; High-temperature control switches set, storage battery group, low temperature temperature control module three parts directly link together in the mode of series connection again; A high-temperature control switch (002) is placed in every storage battery (003) bottom.
Scheme three, low temperature temperature detect switch (TDS) (001) and high-temperature control switch (002) are the temperature detect switch (TDS)s that adopts two temperature-sensitive faces, be respectively half of storage battery (003) quantity, a high-temperature control switch (002) and two storage batterys (003) series connection form one group of high-temperature control storage battery group; Many group high-temperature control storage battery groups, low temperature temperature control module directly link together in the mode of series connection again; Low temperature temperature detect switch (TDS) (001) and high-temperature control switch (002) are placed on respectively the centre of two storage batterys (003) of control.
The configuration quantity of scheme four, low temperature temperature detect switch (TDS) (001) and high-temperature control switch (002) can be fewer than storage battery quantity, but complete the most basic function, at least should configure a low temperature temperature detect switch (TDS) (001) and a diode (004).The principle of connected mode and placement location is with first three scheme,
Above-mentioned embodiment is specific embodiment, does not represent the utility model execution mode only in this way.
Claims (6)
1. an electric vehicle accumulator box with overtemperature protection, is characterized in that: described electric vehicle accumulator box comprises low temperature temperature detect switch (TDS) (001), high-temperature control switch (002), storage battery (003) and diode (004); Described low temperature temperature detect switch (TDS) (001) and described diode (004) are to be connected in parallel to form low temperature temperature control module, and described low temperature temperature control module, described high-temperature control switch (002) and described storage battery (003) are cascaded.
2. according to the electric vehicle accumulator box with overtemperature protection of claim 1; it is characterized in that: described low temperature temperature detect switch (TDS) (001) and described high-temperature control switch (002) are the temperature detect switch (TDS)s of single temperature-sensitive face, are placed on respectively the bottom of protected storage battery (003).
3. according to the electric vehicle accumulator box with overtemperature protection of claim 1; it is characterized in that: described low temperature temperature detect switch (TDS) (001) and described high-temperature control switch (002) are the temperature detect switch (TDS)s of two temperature-sensitive faces, be placed on respectively in the middle of two storage batterys (003) of protected stacked placement.
4. according to the electric vehicle accumulator box with overtemperature protection of claim 1; it is characterized in that: described low temperature temperature control module comprises a plurality of described low temperature temperature detect switch (TDS)s (001); described low temperature temperature detect switch (TDS) (001) is directly joined together to form a series arm in the mode of connecting, and described series arm is in parallel with described diode (004) again.
5. according to the electric vehicle accumulator box with overtemperature protection of claim 1, it is characterized in that: described high-temperature control switch (002) has a plurality of, in the mode of connecting, directly links together.
6. according to the electric vehicle accumulator box with overtemperature protection of claim 1; it is characterized in that: the quantity of described high-temperature control switch (002) and described storage battery (003) as many; storage battery (003) described in high-temperature control switch (002) described in one and one is chained together and forms a high-temperature control storage battery group, and described high-temperature control storage battery group links together in the mode of series connection again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420339107.4U CN204011518U (en) | 2014-06-24 | 2014-06-24 | A kind of electric vehicle accumulator box with overtemperature protection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420339107.4U CN204011518U (en) | 2014-06-24 | 2014-06-24 | A kind of electric vehicle accumulator box with overtemperature protection |
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| CN204011518U true CN204011518U (en) | 2014-12-10 |
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| CN201420339107.4U Expired - Fee Related CN204011518U (en) | 2014-06-24 | 2014-06-24 | A kind of electric vehicle accumulator box with overtemperature protection |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020247704A1 (en) * | 2019-06-05 | 2020-12-10 | Avl Powertrain Engineering, Inc. | Vehicle frame and power supply assembly and related systems and methods |
| US11465445B2 (en) | 2019-06-05 | 2022-10-11 | Avl Powertrain Engineering, Inc. | Vehicle axle assembly |
| US11843097B2 (en) | 2019-09-10 | 2023-12-12 | Avl Powertrain Engineering, Inc. | Power supply control systems and methods |
-
2014
- 2014-06-24 CN CN201420339107.4U patent/CN204011518U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020247704A1 (en) * | 2019-06-05 | 2020-12-10 | Avl Powertrain Engineering, Inc. | Vehicle frame and power supply assembly and related systems and methods |
| CN114041231A (en) * | 2019-06-05 | 2022-02-11 | Avl动力工程公司 | Vehicle frame and power supply assembly and related systems and methods |
| US11465445B2 (en) | 2019-06-05 | 2022-10-11 | Avl Powertrain Engineering, Inc. | Vehicle axle assembly |
| US11843097B2 (en) | 2019-09-10 | 2023-12-12 | Avl Powertrain Engineering, Inc. | Power supply control systems and methods |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Wenzhong Inventor after: Han Zhongmei Inventor after: Song Yufen Inventor after: Wang Deming Inventor after: Zhao Mengxia Inventor after: Luo Xiaodan Inventor after: Feng Chaoshan Inventor after: Li Congxia Inventor after: Cao Linlai Inventor before: Li Wenzhong Inventor before: Li Yuanyuan Inventor before: Liu Yinghao Inventor before: Wang Deming Inventor before: Zhao Mengxia Inventor before: Yang Shuang Inventor before: Feng Chaoshan |
|
| COR | Change of bibliographic data | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20160624 |
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| CF01 | Termination of patent right due to non-payment of annual fee |