CN206870869U - The Manual maintenance switch and High voltage output safety control circuit of electric automobile - Google Patents
The Manual maintenance switch and High voltage output safety control circuit of electric automobile Download PDFInfo
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- CN206870869U CN206870869U CN201720368441.6U CN201720368441U CN206870869U CN 206870869 U CN206870869 U CN 206870869U CN 201720368441 U CN201720368441 U CN 201720368441U CN 206870869 U CN206870869 U CN 206870869U
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- high voltage
- electric automobile
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- manual maintenance
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Abstract
The utility model provides a kind of Manual maintenance switch and High voltage output safety control circuit of electric automobile, belongs to the High voltage output safety control technology field of electric automobile.The Manual maintenance switch of electric automobile of the present utility model includes：First switch part, it is serially arranged in the low-voltage circuit powered for the contactor control unit of the contactor to be arranged on the High voltage output loop of the high voltage power battery modules of the electric automobile.Manual maintenance switch cost of the present utility model is low, manually operated safety.
Description
Technical field
The utility model belongs to the High voltage output safety control technology field of electric automobile, is related to a kind of hand of electric automobile
Dynamic service switch and the High voltage output safety control circuit using the Manual maintenance switch.
Background technology
As a kind of important new-energy automobile, it is used generally high voltage power battery and come at least in part electric automobile
The energy of driving electric automobile during traveling is provided, electric automobile includes pure electric automobile and hybrid vehicle.
The electric power output of high voltage power battery in electric automobile reaches such as more than 70V, therefore, in electric automobile generally
Manual maintenance switch is set（MSD）.Manual maintenance switch can manually cut off electrokinetic cell as a kind of high-voltage safety part
High voltage output, so as to electric automobile repair or occur to avoid due to the High voltage output of high voltage power battery under the situations such as accident
And to related personnel（Such as maintenance personal or personnel in the electric automobile of accident etc. occur）Bring life threat.
Existing Manual maintenance switch is typically all arranged in high voltage power battery modules, and it needs to take a part of high pressure
Power battery module space, the arrangement of high voltage power battery modules is influenceed, be unfavorable for relatively limited space on electric automobile
It is middle to lay enough battery units；In addition, existing Manual maintenance switch belongs to high voltage component, safe class requires higher,
It is with high costs, and threat easily may also be produced to operating personnel during misoperation.
Utility model content
To solve the problems, such as above technical problem or other technologies, the utility model provides following technical scheme.
According to one side of the present utility model, there is provided a kind of Manual maintenance switch of electric automobile, including：
First switch part, it is serially arranged in for be arranged in the high voltage power battery modules of the electric automobile
High voltage output loop on contactor contactor control unit power supply low-voltage circuit on.
According to the Manual maintenance switch of the embodiment of the utility model one, wherein, in addition to：
Second switch part, its arrangement that linked with the first switch component in parallel, and the coupling vehicle control of its both ends
Unit processed.
According to the Manual maintenance switch of the embodiment of the utility model one, wherein, the first end of the first switch part connects
The contactor control unit is connect, the second end of the first switch part is connected as the low of the contactor control unit power supply
Voltage source.
According to the Manual maintenance switch of the embodiment of the utility model one, wherein, the relatively described height of the Manual maintenance switch
Pressure power battery modules are discretely arranged on the electric automobile.
According to the Manual maintenance switch of the embodiment of the utility model one, wherein, the Manual maintenance switch is arranged on described
In the cabin of electric automobile.
According to another aspect of the present utility model, there is provided a kind of High voltage output safety control circuit of electric automobile, it has
There is the low-voltage control circuit for controlling the contactor control unit of the contactor, on the low-voltage control circuit, series connection
Ground is provided with the first switch part of the manual maintenance mans switch described in any of the above and the contactor control unit；
Wherein, the contactor is arranged on the High voltage output loop of the high voltage power battery modules of the electric automobile.
According to the High voltage output safety control circuit of the embodiment of the utility model one, wherein, it is additionally included in the low pressure control
The low-tension supply set on loop processed, the low-tension supply couple the contactor control unit by low-voltage circuit and are described
Contactor control unit is powered.
Manual maintenance switch cost of the present utility model is low, manually operated safety, also, need not be arranged on high voltage power
In battery modules, space arrangement of the high voltage power battery modules on electric automobile is not influenceed.High voltage output of the present utility model
Safety control circuit cost of implementation is low, and the high pressure for being capable of the effectively high voltage power battery on hand off electric automobile is defeated
Go out.
Brief description of the drawings
From described further below with reference to accompanying drawing, it will make above and other purpose and advantage of the present utility model more
It is complete clear, wherein, same or analogous key element, which is adopted, to be indicated by the same numeral.
Fig. 1 is the High voltage output safety control circuit schematic diagram according to the electric automobile of the embodiment of the utility model one.
Embodiment
The utility model is more fully described now with reference to accompanying drawing, shown in the drawings of of the present utility model exemplary
Embodiment.But the utility model can be realized according to many different forms, and it is not construed as being limited to explaining here
The embodiment stated.On the contrary, thesing embodiments are provided so that the disclosure becomes thorough and complete, and conceive of the present utility model
Pass to those skilled in the art entirely.In accompanying drawing, identical label refers to identical element or part, therefore, will omit to it
Description.
In following description, for the clear and concise of description, all multiple parts shown in figure are not carried out detailed
Thin description.Shown in the drawings of those of ordinary skill in the art to be fully able to realize multiple parts of the present utility model, for
For those skilled in the art, perhaps multipart operation is all familiar and obvious.
Herein, electric automobile refers to provide driving electric automobile at least in part using high voltage power battery modules
The energy of traveling, electric automobile include such as pure electric automobile and hybrid vehicle.Wherein, low pressure refers to relative human-body safety
Voltage, e.g., less than or equal to 36V voltage, high pressure refer to the voltage of harm to the human body, be greater than 36V voltage.
It is high-voltage signal for driving the voltage of the motor of electric automobile, it is exported by high voltage power battery modules in electric automobile.
Fig. 1 show the High voltage output safety control circuit signal according to the electric automobile of the embodiment of the utility model one
Figure, wherein further illustrating the Manual maintenance switch 110 of the embodiment of the utility model one.As shown in figure 1, high-tension battery module 200
It is installed in electric automobile, high-tension battery module 200 is usually made up of multiple battery units, and it can export high pressure to drive
The parts such as the motor of dynamic electric automobile, high-tension battery module 200 typically have larger volume and it is relative take electric automobile compared with
Large space, therefore, the requirements such as electric automobile has small volume to high-tension battery module 200, in light weight, energy density is big.High pressure
The concrete structure and type of battery modules 200 are not limitations.
As shown in figure 1, on electric automobile, it is also arranged in series on High voltage output loop 210 to have one or more（Such as
Two）The contactor 230 of the embodiment of the utility model one（It is referred to as relay）, contactor 230 specifically can with but it is unlimited
In being arranged in high voltage power battery modules 200 or near high voltage power battery modules 200, it can be used for controlling High voltage output
Loop 210 turns on and off；When contactor 230 is in closure state, High voltage output loop 210 is switched on, high-tension battery
Module 200 can export high pressure to the power components in loop 210, and when contactor 230 is off, High voltage output returns
Road 210 is turned off, and the High voltage output of high-tension battery module 200 is cut off.
It is to be appreciated that High voltage output loop 210 is additionally provided with other all multi-parts not shown in figure 1 above, example
Such as, motor, DC charging system, high-pressure air conditioner system etc., their specific set-up modes on High voltage output loop 210
It is not restricted.
In view of the High voltage output in High voltage output loop 210 occurring such as maintenance or accident under situation easily to personnel's
Life security is threatened, and the High voltage output that corresponding High voltage output loop 210 is configured with the embodiment of the utility model one is controlled safely
Circuit 100 processed.
Continue as shown in figure 1, what High voltage output safety control circuit 100 corresponded to contactor 230 and set.Contactor
230 are mainly made up of contactor control unit 231 and contact switch 232；Contact switch 232 is high voltage component, and it sets in series
Put on High voltage output loop 210；Contactor control unit 231 is low pressure components, and it is used for controlling the dynamic of contact switch 232
Make, so that realization is gone to control the running of high current with low current.When contact switch 232 closes, contactor 230 is in closed form
State, when contact switch 232 disconnects, contactor 230 is off.Specifically set in contactor control unit 231 wired
The parts such as circle, its concrete structure and type are not restricted.
High voltage output safety control circuit 100 is corresponding to have low-voltage control circuit 190, is connected in low-voltage control circuit 190
Ground is provided with contactor control unit 231 and the Manual maintenance switch 110 of the embodiment of the utility model one, specifically also sets in series
Be equipped with low-tension supply 120, it is used to power for contactor control unit 231, low-tension supply 120 can be battery or
Low-tension supply on electric automobile is formed, and it for example can be, but not limited to export 12V DC electricity.
In one embodiment, Manual maintenance switch 110 includes first switch part 111a, and it is serially arranged in low pressure control
On loop 190 processed, specifically, it is arranged on the low-voltage circuit between low-tension supply 120 and contactor control unit 231, specifically
For, first switch part 111a first end connection contactor control unit 231, first switch part 111a the second end connects
Connect low-tension supply 120；First switch part 111a can be employed manually, so as to realize open or close；In electric automobile
Normal use when, keep first switch part 111a closure, contactor control unit 231 by the normal power supply of low-tension supply 120,
The shut-off or connection in High voltage output loop 210 are realized by the control to contactor control unit 231；Repairing or occurring
When accident, definitely to avoid High voltage output life-threatening safe, manual unlocking first switch part 111a, contactor control
The dead electricity of part 231 processed, contact switch 232 are disconnected, and the shut-off in High voltage output loop 210, High voltage output is cut off.
Because first switch part 111a is mounted on low-voltage control circuit 190, therefore, it is low pressure components, safety
Class requirement is low, can be achieved at low cost；Also, during manual operation first switch part 111a, security is good.First switch
Part 111a can be that various low tension switch elements realize that its concrete structure and type are not restricted.
In one embodiment, Manual maintenance switch 110 also includes second switch part 111b, itself and first switch part
111a concurrently links arrangement, and its both ends coupling full-vehicle control unit VCU300.Second switch part 111b opens with first
It can be identical switch block to close part 111a, its can with first switch part 111a by synchronously manually operated, for example,
During manual unlocking/closure first switch part 111a, second switch part 111b is acted simultaneously together with first switch part 111a
It is opened/closed.Therefore, second switch part 111b open or close state can be read by the VCU300 on electric automobile
Take, when reading second switch part 111b and being in open mode, enabled vehicle is placed in maintenance mode by VCU300, so,
Manual maintenance switch 110 not only have hand off High voltage output function, it can also automatic feedback signal to VCU300 with
Enabled electric automobile is in maintenance mode.
For the manual maintenance mans switch 110 of above example due to being not high voltage component, it is overall and need not be arranged on
In high voltage power battery modules 200 or near high voltage power battery modules 200, that is to say, that Manual maintenance switch 100 can be with
Relatively high pressure power battery module 200 is discretely arranged on electric automobile.Therefore, can't be to high voltage power battery modules
200 structures have an impact, and also do not interfere with space arrangement of the high voltage power battery modules 200 on electric automobile.Specifically,
Manual maintenance mans' switch 110 may be mounted at the position of the convenient operation of staff, for example, may be mounted at the machine of electric automobile
In cabin.
, can be with by operating manual maintenance mans switch 110 in the High voltage output safety control circuit 100 of above example
High voltage output loop 210 is effectively turned off, so as to effectively cut off High voltage output, advantageously ensures that the life of maintenance personal etc.
Life safety.
It will be understood that when it is said that by part " connection " or during " coupled " to another part, it can be directly connected to or couple
To another part or there may be intermediate member.
Example above primarily illustrates the Manual maintenance switch of electric automobile of the present utility model and uses the manual dimension
Repair the High voltage output safety control circuit of switch.Although only some of embodiments of the present utility model are described,
But those of ordinary skill in the art it is to be appreciated that the utility model can without departing from its spirit with scope in many other
Form implement.Therefore, the example shown is considered as illustrative and not restrictive with embodiment, is not departing from such as institute
In the case of the utility model spirit and scope defined in appended claims, the utility model may cover various modifications
With replacement.
Claims (7)
- A kind of 1. Manual maintenance switch of electric automobile（110）, it is characterised in that including：First switch part（111a）, it is serially arranged in for be arranged in the high voltage power battery mould of the electric automobile Group（200）High voltage output loop（210）On contactor（230）Contactor control unit（231）The low-voltage circuit of power supply On.
- 2. Manual maintenance switch as claimed in claim 1（110）, it is characterised in that also include：Second switch part（111b）, itself and the first switch part（111a）Concurrently linkage arrangement, and its both ends coupling Connect full-vehicle control unit（300）.
- 3. Manual maintenance switch as claimed in claim 1 or 2（110）, it is characterised in that the first switch part（111a） First end connect the contactor control unit（231）, the first switch part（111a）The second end be connected as it is described Contactor control unit（231）The low-tension supply of power supply（120）.
- 4. Manual maintenance switch as claimed in claim 1 or 2（110）, it is characterised in that the Manual maintenance switch（110） Relatively described high voltage power battery modules（200）Discretely it is arranged on the electric automobile.
- 5. Manual maintenance switch as claimed in claim 4（110）, it is characterised in that the Manual maintenance switch（110）Installation In the cabin of the electric automobile.
- A kind of 6. High voltage output safety control circuit of electric automobile（100）, it is characterised in that it has described for controlling Contactor（230）Contactor control unit（231）Low-voltage control circuit（190）, in the low-voltage control circuit（190） On, it is disposed in series any described manual maintenance mans switch just like in claim 1 to 5（110）First switch part （111a）With the contactor control unit（231）；Wherein, the contactor（230）It is arranged in the high voltage power battery modules of the electric automobile（200）High voltage output return Road（210）On.
- 7. High voltage output safety control circuit as claimed in claim 6（100）, it is characterised in that it is additionally included in the low pressure Control loop（190）The low-tension supply of upper setting（120）, the low-tension supply（120）The contact is coupled by low-voltage circuit Device control unit（231）And it is the contactor control unit（231）Power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720368441.6U CN206870869U (en) | 2017-04-10 | 2017-04-10 | The Manual maintenance switch and High voltage output safety control circuit of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720368441.6U CN206870869U (en) | 2017-04-10 | 2017-04-10 | The Manual maintenance switch and High voltage output safety control circuit of electric automobile |
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| Publication Number | Publication Date |
|---|---|
| CN206870869U true CN206870869U (en) | 2018-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720368441.6U Active CN206870869U (en) | 2017-04-10 | 2017-04-10 | The Manual maintenance switch and High voltage output safety control circuit of electric automobile |
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| CN (1) | CN206870869U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108494037A (en) * | 2018-03-30 | 2018-09-04 | 爱驰汽车有限公司 | Battery pack maintenance protection circuit and battery pack |
| CN109466331A (en) * | 2018-11-30 | 2019-03-15 | 广州小鹏汽车科技有限公司 | A kind of on-board high-voltage, which releases and uncaps, protects circuit system and its method and electric vehicle |
| CN110416464A (en) * | 2019-08-16 | 2019-11-05 | 深圳市雄韬锂电有限公司 | Power supply unit and electric car |
| CN111376725A (en) * | 2018-12-28 | 2020-07-07 | 长城汽车股份有限公司 | Power battery, maintenance protection device thereof and vehicle |
-
2017
- 2017-04-10 CN CN201720368441.6U patent/CN206870869U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108494037A (en) * | 2018-03-30 | 2018-09-04 | 爱驰汽车有限公司 | Battery pack maintenance protection circuit and battery pack |
| CN108494037B (en) * | 2018-03-30 | 2020-09-29 | 爱驰汽车有限公司 | Battery pack maintenance protection circuit and battery pack |
| CN109466331A (en) * | 2018-11-30 | 2019-03-15 | 广州小鹏汽车科技有限公司 | A kind of on-board high-voltage, which releases and uncaps, protects circuit system and its method and electric vehicle |
| CN111376725A (en) * | 2018-12-28 | 2020-07-07 | 长城汽车股份有限公司 | Power battery, maintenance protection device thereof and vehicle |
| CN110416464A (en) * | 2019-08-16 | 2019-11-05 | 深圳市雄韬锂电有限公司 | Power supply unit and electric car |
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