CN206727694U - Power supply protection device, battery energy storage system and electrical equipment - Google Patents
Power supply protection device, battery energy storage system and electrical equipment Download PDFInfo
- Publication number
- CN206727694U CN206727694U CN201720591820.1U CN201720591820U CN206727694U CN 206727694 U CN206727694 U CN 206727694U CN 201720591820 U CN201720591820 U CN 201720591820U CN 206727694 U CN206727694 U CN 206727694U
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- Prior art keywords
- switch
- power supply
- relay
- protection device
- resistance
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
Abstract
The utility model proposes a kind of power supply protection device, battery energy storage system and electrical equipment, power supply protection device includes：Electric supply installation；Power switch relay, the first end of power switch relay are connected to the output end of electric supply installation, and the second end is connected to load；Switch protecting circuit; including protection switch and vent diverter, protection switch is connected with vent diverter, and one end of protection switch is connected to power switch relay; the other end of protection switch is connected to one end of vent diverter, and the other end of vent diverter is connected with the second end of power switch relay.The utility model reduces the security that the possibility that power switch relay is adhered improves electric supply installation.
Description
【Technical field】
It the utility model is related to cell art, more particularly to a kind of power supply protection device, a kind of battery energy storage system
With a kind of electrical equipment.
【Background technology】
At present, large-scale power supply protection device is widely used in power station, company's energy-storage system etc..Wherein, typically pass through
Whether one power switch Control externally discharges, and turns off the power switch relay and then stops discharging, closes the power supply
Switch relay then starts to discharge.
However, when needing to turn off the power switch relay, if excessive by the electric current of the power switch relay
When, then the bad phenomenons such as arcing can be often produced, the power switch relay is adhered, can not successfully turn off.
Therefore, how to avoid that the situation that relay is adhered occurs when turning off power switch relay, turn at present urgently
The technical problem of solution.
【Utility model content】
The utility model embodiment provides a kind of power supply protection device, a kind of battery energy storage system and a kind of electricity consumption and set
It is standby, it is intended to solve that the technical problem that relay is adhered easily occurs in correlation technique when turning off power switch relay, reduce after
The possibility that electrical equipment is adhered, lift security.
In a first aspect, the utility model embodiment provides a kind of power supply protection device, including：Electric supply installation；Power supply is opened
Relay is closed, is connected to the output end of the electric supply installation；Switch protecting circuit, institute in parallel with the power switch relay
Stating switch protecting circuit includes protection switch and vent diverter, and the protection switch is connected with the vent diverter.
In the utility model above-described embodiment, alternatively, the electric supply installation includes several battery modules, Mei Ge electricity
Pond module is formed by several cell parallels.
In the utility model above-described embodiment, alternatively, the protection switch is relay.
In the utility model above-described embodiment, alternatively, the vent diverter is resistance.
In the utility model above-described embodiment, alternatively, the resistance is resistance fixed resistance or resistance adjustable resistance.
In the utility model above-described embodiment, alternatively, the power switch relay is parallel with one or more institutes
State switch protecting circuit.
In the utility model above-described embodiment, alternatively, the resistance of the vent diverter of each switch protecting circuit
Of different sizes, correspondingly, multiple switch protecting circuits are corresponding with different safe classes respectively.
In the utility model above-described embodiment, alternatively, the resistance of the vent diverter of each switch protecting circuit
Size is identical, and appoints several switch protecting circuits to form a switch protecting circuit in multiple switch protecting circuits
Group, correspondingly, the open and-shut mode of all switch protecting circuits is identical in any switch protecting circuit group, multiple switches
Protection circuit group is corresponding with different safe classes respectively.
Second aspect, the utility model embodiment, which is provided in a kind of battery energy storage system, including above-mentioned first aspect, appoints
Power supply protection device described in one.
The third aspect, the utility model embodiment provide a kind of electrical equipment, including any one of above-mentioned first aspect
Described power supply protection device.
In correlation technique, when turning off power switch relay, due to the maximum energy of power switch relay turn-off current
Power is certain, when the electric current by power switch relay is excessive, or even the maximum capacity institute energy beyond its turn-off current
During the electric current enough disconnected, power switch relay is likely to be difficult to disconnect, and generation is adhered.
Above technical scheme, can be a power switch relay switch protecting circuit in parallel for the technical problem, should
Switch protecting circuit includes protection switch and vent diverter, when power switch relay closure, electric supply installation are discharged, opens
The protection switch for closing protection circuit is to disconnect, then, can first closure switch protection when needing to disconnect power switch relay
The protection switch of circuit, turns on protection circuit, due to having vent diverter in protection circuit, after protection circuit conducting, and power supply
Just part is shunted the primary current of device outflow by vent diverter, so as to reduce the electric current by power switch relay.Due to
The maximum capacity of power switch relay turn-off current is certain, and the electric current by power switch relay is smaller, then powers
The probability that switch relay can successfully disconnect is also bigger.Finally, after power switch relay 104 disconnects, then guarantor is disconnected
Shield switch 1062, so as to smoothly stop power supply.
Therefore, by the technical scheme, the possibility that power switch relay is adhered is reduced so that power switch
Relay is safer effectively, so as to greatly improve the security of electric supply installation.
【Brief description of the drawings】
, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the utility model, right
For those of ordinary skill in the art, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings
Its accompanying drawing.
Fig. 1 shows the circuit link schematic diagram of the power supply protection device of one embodiment of the present utility model；
Fig. 2 shows the circuit link schematic diagram of the power supply protection device of another embodiment of the present utility model；
Fig. 3 shows the block diagram of the battery energy storage system of one embodiment of the present utility model；
Fig. 4 shows the block diagram of the electrical equipment of one embodiment of the present utility model.
【Embodiment】
In order to be better understood from the technical solution of the utility model, the utility model embodiment is carried out below in conjunction with the accompanying drawings
It is described in detail.
It will be appreciated that described embodiment is only the utility model part of the embodiment, rather than whole implementation
Example.Based on the embodiment in the utility model, those of ordinary skill in the art are obtained under the premise of creative work is not made
The all other embodiment obtained, belong to the scope of the utility model protection.
The term used in the utility model embodiment is only merely for the purpose of description specific embodiment, and is not intended to
Limit the utility model." one kind " of singulative used in the utility model embodiment and appended claims,
" described " and "the" are also intended to including most forms, unless context clearly shows that other implications.
Fig. 1 shows the circuit link schematic diagram of the power supply protection device of one embodiment of the present utility model.
As shown in figure 1, the utility model embodiment provides a kind of power supply protection device 100, including：Electric supply installation 102,
Power switch relay 104 and switch protecting circuit 106.
The first end of power switch relay 104 is connected to the output end of the electric supply installation 102, power switch relay
104 the second end is connected to load；Switch protecting circuit 106 is in parallel with the power switch relay 104, the switch protection
Circuit 106 includes protection switch 1062 and vent diverter 1064, and the protection switch 1062 is connected with the vent diverter 1064,
Wherein, one end of protection switch 1062 is connected to power switch relay 104, and the other end of protection switch 1062 is connected to shunting
One end of element 1064, the other end of vent diverter 1064 are connected with the second end of power switch relay 104.
Above technical scheme, can be the switch protecting circuit 106 in parallel of power switch relay 104, the switch protection
Circuit 106 includes protection switch 1062 and vent diverter 1064, when power switch relay 104 is closed, electric supply installation 102 is carried out
During electric discharge, the protection switch 1062 of switch protecting circuit 106 is to disconnect, then, when needing to disconnect power switch relay 104
When, can first closure switch protection circuit 106 protection switch 1062, turn on protection circuit, due in protection circuit have point
Fluid element 1064, after protection circuit conducting, just part is shunted the primary current that electric supply installation 102 flows out by vent diverter 1064, from
And reduce the electric current by power switch relay 104.Because the maximum capacity of the turn-off current of power switch relay 104 is
Certain, the electric current by power switch relay 104 is smaller, then the probability that power switch relay 104 can successfully disconnect
Also it is bigger.Finally, after power switch relay 104 disconnects, then protection switch 1062 is disconnected, so as to smoothly stop power supply.
Therefore, by the technical scheme, the possibility that power switch relay 104 is adhered is reduced so that power supply
Switch relay 104 is safer effectively, so as to greatly improve the security of electric supply installation 102.In addition, the power supply protection fills
Putting 100 also has following additional technical feature：
Electric supply installation 102 includes several battery modules, and each battery modules are formed by several cell parallels.Namely
Say, the utility model is mainly used in the huge situation of supply current, and the battery modules in electric supply installation 102 are more, and it is powered
Ability is also bigger.
Protection switch 1062 can be relay, and relay is a kind of switch by Small current control high current, and it has
There is the advantage that automaticity is high, certainly, protection switch 1062 can also be that other are any kind of with opening and closing turn function
Switch, and relay
Vent diverter 1064 can be resistance, or other any elements with resistance, as long as resistance can be passed through
The primary current that value flows out to electric supply installation 102 shunts, you can reaches the several of the success disconnection of lifting power switch relay 104
The purpose of rate.
In a kind of implementation of the present utility model, the resistance is resistance fixed resistance, and resistance fixed resistance is corresponding
Separation capacity be also fixed.
In another implementation of the present utility model, the resistance is resistance adjustable resistance.Due to：
Then if the resistance of power switch relay 104 is 100 ohm, the primary current that electric supply installation 102 flows out is
1.1kA, when resistance adjustment to 1k ohms of vent diverter, reduced after being split by the electric current of power switch relay 104
To 1kA, when resistance adjustment to 2.1k ohms of vent diverter, dropped after being split by the electric current of power switch relay 104
As little as 0.5kA.That is, it can be made by changing the resistance of resistance come the actual separation capacity of adjusting switch protection circuit 106
Regulation that must be to power switch relay 104 or even whole system is more flexible.Certainly, in actual scene each component electricity
Resistance, current parameters are not limited to above-mentioned illustration.
Require supplementation with yes, the load of the second end connection of power switch relay 104, can be any required electric energy
Equipment, power station etc..
The technical solution of the utility model is described below by another way.
First, battery management unit receives information of stopping power supply, therefore the information that can be stopped power supply according to this, closure protection
Switch 1062 so that the path of switch protecting circuit 106, now, further according to the information of stopping power supply, disconnect power switch relay
104, after power switch relay 104 successfully disconnects, that is, the electric current for detecting the place branch road of power switch relay 104 is zero
When, according to information of stopping power supply, then protection switch 1062 is disconnected, finally realize the purpose stopped power supply.Wherein, in vent diverter
In the case of 1064 resistance is adjustable, its resistance can be adjusted by battery management unit, such as, can be in battery management unit
Operation interface sets different resistance options, is selected for user.
Fig. 2 shows the circuit link schematic diagram of the power supply protection device of another embodiment of the present utility model.
As shown in Fig. 2 power switch relay 104 is parallel with one or more switch protecting circuits 106, Duo Gekai
Close protection circuit 106 to be shunted simultaneously, stronger separation capacity can be achieved, so as to be further lowered through power switch relay
The electric current of device 104, the probability that the success of lifting power switch relay 104 disconnects.Three switches are schematically illustrated in Fig. 2 to protect
Protection circuit 106, but in actual conditions, the quantity not limited to this of switch protecting circuit 106.
Based on this, in a kind of implementation of the present utility model, the vent diverter of each switch protecting circuit 106
1064 resistance sizes are identical, appoint several switch protecting circuits 106 to form one in multiple switch protecting circuits 106
106 groups of switch protecting circuit, the open and-shut mode phase of all switch protecting circuits 106 in any 106 groups of switch protecting circuit
Together, correspondingly, multiple 106 groups of switch protecting circuits are corresponding with different safe classes respectively.
For example four switch protecting circuits a, b, c, d are provided with, four groups can be classified as：First group of a, second group of b and c,
3rd group of a, b and c, the 4th group of a, b, c, d correspond to that safe class is basic, normal, high, highest respectively.
In addition, in another implementation of the present utility model, the vent diverter of each switch protecting circuit 106
1064 resistance sizes are different, and correspondingly, multiple switch protecting circuits 106 are corresponding with different safe classes respectively.This
Sample, user can select different switch protecting circuits 106 according to the actual requirements, it is hereby achieved that different degrees of safety guarantor
Shield.
Fig. 3 shows the block diagram of the battery energy storage system of one embodiment of the present utility model.
As shown in figure 3, the utility model embodiment provides a kind of battery energy storage system 300, including appoint in Fig. 1 and Fig. 2
Power supply protection device 100 described in one embodiment.Therefore, the battery energy storage system 300 has and any implementation in Fig. 1 and Fig. 2
The identical technique effect of power supply protection device 100 described in example, will not be repeated here.
Fig. 4 shows the block diagram of the electrical equipment of one embodiment of the present utility model.
As shown in figure 4, the utility model embodiment provides a kind of electrical equipment 400, including any reality in Fig. 1 and Fig. 2
Apply the power supply protection device 100 described in example.Therefore, the electrical equipment 400 have and Fig. 1 and Fig. 2 in described in any embodiment
The identical technique effect of power supply protection device 100, will not be repeated here.
The technical solution of the utility model is described in detail above in association with accompanying drawing, by the technical solution of the utility model,
Reduce the possibility that power switch relay is adhered so that power switch relay is safer effectively, so as to significantly
Improve the security of electric supply installation.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements done etc., the utility model should be included in
Within the scope of protection.
Claims (10)
- A kind of 1. power supply protection device, it is characterised in that including：Electric supply installation；Power switch relay, the first end of the power switch relay is connected to the output end of the electric supply installation, described Second end of power switch relay is connected to load；Switch protecting circuit, the switch protecting circuit include protection switch and vent diverter, the protection switch with described point Fluid element is connected, wherein, one end of the protection switch is connected to the power switch relay, the protection switch it is another End is connected to one end of the vent diverter, the second end phase of the other end of the vent diverter and the power switch relay Even.
- 2. power supply protection device according to claim 1, it is characterised in that the electric supply installation includes several battery moulds Group, each battery modules are formed by several cell parallels.
- 3. power supply protection device according to claim 1, it is characterised in that the protection switch is relay.
- 4. power supply protection device according to claim 1, it is characterised in that the vent diverter is resistance.
- 5. power supply protection device according to claim 4, it is characterised in that the resistance is resistance fixed resistance or resistance Adjustable resistance.
- 6. power supply protection device according to any one of claim 1 to 5, it is characterised in that the power switch relay Device is parallel with one or more switch protecting circuits.
- 7. power supply protection device according to claim 6, it is characterised in that the shunting member of each switch protecting circuit The resistance sizes of part are different；Accordingly, multiple switch protecting circuits are corresponding with different safe classes respectively.
- 8. power supply protection device according to claim 6, it is characterised in that the shunting member of each switch protecting circuit The resistance sizes of part are identical, andSeveral switch protecting circuits are appointed to form a switch protecting circuit group in multiple switch protecting circuits；The open and-shut mode of all switch protecting circuits is identical in any switch protecting circuit group, correspondingly, multiple described to open Close protection circuit group and be corresponding with different safe classes respectively.
- 9. a kind of battery energy storage system, it is characterised in that including the power supply protection dress as any one of claim 1 to 8 Put.
- 10. a kind of electrical equipment, it is characterised in that including the power supply protection device as any one of claim 1 to 8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720591820.1U CN206727694U (en) | 2017-05-25 | 2017-05-25 | Power supply protection device, battery energy storage system and electrical equipment |
| PCT/CN2017/093122 WO2018214263A1 (en) | 2017-05-25 | 2017-07-17 | Power supply protection device, battery energy storage system and electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720591820.1U CN206727694U (en) | 2017-05-25 | 2017-05-25 | Power supply protection device, battery energy storage system and electrical equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206727694U true CN206727694U (en) | 2017-12-08 |
Family
ID=60511571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720591820.1U Active CN206727694U (en) | 2017-05-25 | 2017-05-25 | Power supply protection device, battery energy storage system and electrical equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN206727694U (en) |
| WO (1) | WO2018214263A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109649309A (en) * | 2019-01-31 | 2019-04-19 | 宁德时代新能源科技股份有限公司 | Control system |
| WO2020114501A1 (en) * | 2018-12-06 | 2020-06-11 | 宁德时代新能源科技股份有限公司 | Power protection circuit |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006003124A1 (en) * | 2006-01-23 | 2007-08-02 | Siemens Ag | Method for implementing an improved thermo-mechanical overload protection and associated overload protection device |
| CN101986491A (en) * | 2010-12-03 | 2011-03-16 | 安徽力高新能源技术有限公司 | Electrical equipment and relay protector |
| CN102280865A (en) * | 2011-09-05 | 2011-12-14 | 湖南南车时代电动汽车股份有限公司 | Electric automobile contactor protection method and device |
| CN106026229A (en) * | 2016-05-27 | 2016-10-12 | 宁德时代新能源科技股份有限公司 | Shunting device and working method thereof |
-
2017
- 2017-05-25 CN CN201720591820.1U patent/CN206727694U/en active Active
- 2017-07-17 WO PCT/CN2017/093122 patent/WO2018214263A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020114501A1 (en) * | 2018-12-06 | 2020-06-11 | 宁德时代新能源科技股份有限公司 | Power protection circuit |
| US11600992B2 (en) | 2018-12-06 | 2023-03-07 | Contemporary Amperex Technology Co., Limited | Electric protection circuit |
| CN109649309A (en) * | 2019-01-31 | 2019-04-19 | 宁德时代新能源科技股份有限公司 | Control system |
| WO2020156229A1 (en) * | 2019-01-31 | 2020-08-06 | 宁德时代新能源科技股份有限公司 | Control system |
| US11088553B2 (en) | 2019-01-31 | 2021-08-10 | Contemporary Amperex Technology Co., Limited | Control system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018214263A1 (en) | 2018-11-29 |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220126 Address after: 352100 science and technology building, No. 2, Xingang Road, Zhangwan Town, Jiaocheng District, Ningde City, Fujian Province Patentee after: Ningde Shidai Runzhi Software Technology Co.,Ltd. Address before: 352100 Xingang Road, Zhangwan Town, Jiaocheng District, Ningde, Fujian 1 Patentee before: Contemporary Amperex Technology Co.,Ltd. |