CN206832958U - Fault testing apparatus - Google Patents
Fault testing apparatus Download PDFInfo
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- CN206832958U CN206832958U CN201720837080.5U CN201720837080U CN206832958U CN 206832958 U CN206832958 U CN 206832958U CN 201720837080 U CN201720837080 U CN 201720837080U CN 206832958 U CN206832958 U CN 206832958U
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Abstract
The utility model proposes a kind of fault testing apparatus, including：Relay module, including relay operation element and busy relay, relay operation element and busy relay serial or parallel connection, relay module also include first input end and the second input；Battery management system, the output end of battery management system are connected to the first input end of relay module, for sending filter job information to relay module, for control relay job information；Failure output module, the second input of relay module is connected to, for sending filter fault-signal to busy relay, the open and-shut mode of busy relay is changed, to change the actual working state of relay module.It can be automatically battery management system analogue relay failure by the technical solution of the utility model, avoid manually operated, reduce potential safety hazard, also, greatly improve testing efficiency.
Description
【Technical field】
It the utility model is related to battery testing technical field, more particularly to a kind of fault testing apparatus.
【Background technology】
At present, can be manual in order to find and correct the mistake of this battery management system repeat circuit module of BMU as far as possible
BMU relay module is tested, specifically, can be with the opening and closing of each relay in manually operated relay module
State carrys out analogue relay failure.
However, this test mode is cumbersome, testing efficiency is very low, also, due to needing high-tension circuit hand-manipulated,
In the presence of great potential safety hazard.
Therefore, how relay fault test safely and efficiently is carried out for battery management system, turns into urgently to be resolved hurrily at present
Technical problem.
【Utility model content】
The utility model embodiment provides a kind of fault testing apparatus, it is intended to which it is manually cell tube to solve in correlation technique
The technical problem cumbersome during the progress relay fault test of reason system, potential safety hazard is high, being capable of the event of automatic imitation relay
Barrier, avoid manually operated, lifting testing efficiency and Security of test.
In a first aspect, the utility model embodiment provides a kind of fault testing apparatus, including：Relay module, including
Relay operation element and busy relay, the relay operation element and the busy relay serial or parallel connection, it is described
Relay module also includes first input end and the second input；Battery management system, the output end of the battery management system
The first input end of the relay module is connected to, for sending filter job information to the relay module,
For controlling the relay job information；Failure output module, the output end of the failure output module be connected to it is described after
Second input of electrical appliance module, for sending filter fault-signal to the busy relay, make the test after
The open and-shut mode of electrical equipment changes, to change the actual working state of the relay module.
In the utility model above-described embodiment, alternatively, the busy relay is open fault relay, it is described after
Electrical work element and open fault relay series connection.
In the utility model above-described embodiment, alternatively, the busy relay to be adhered power transfer relay, it is described after
Electrical work element and it is described be adhered power transfer relay parallel connection.
In the utility model above-described embodiment, alternatively, the busy relay is fuse relay, the failure
Output module sends fuse open fault signal to the fuse relay, is in the fuse relay and disconnects shape
State.
In the utility model above-described embodiment, alternatively, in addition to：Capacitance simulation module, it is connected to the relay
Module, for the electric capacity in simulated high-pressure power circuit.
In the utility model above-described embodiment, alternatively, the relay operation element includes main positive relay, preliminary filling
Relay and preliminary filling resistance.
In the utility model above-described embodiment, alternatively, one end of the preliminary filling relay has the first link position,
The other end has the second link position, and the preliminary filling resistance is arranged on first link position or described by demountable structure
At second link position.
In the utility model above-described embodiment, alternatively, the failure output module 13 also includes：Coil fault mould
Block, one end of the coil fault module are connected to the output end of the battery management system, and the other end is connected to the relay
The relay driving coil of device module, for simulating the open fault of the relay driving coil, short power failure or short
Failure.
In the utility model above-described embodiment, alternatively, in addition to：Voltage sample panel, the voltage sample panel
With multiple voltage sampling ports, each voltage sampling port is connected to corresponding sampling location in the relay module.
In the utility model above-described embodiment, alternatively, in addition to：External power supply, the external power supply are connected with simultaneously
Multiple sub switchs of connection, each sub switch are connected to the corresponding busy relay, all or part of busy relays
Powered by the external power supply.
Above technical scheme, for being that battery management system operates when carrying out relay fault test manually in correlation technique
Technical problem cumbersome, potential safety hazard is high, it is former relay operation element in the relay module of battery management system connection
Set up busy relay, and by relay operation element and busy relay serial or parallel connection.
On this basis, when relay operation element and busy relay are connected, by the output of failure output module after
Apparatus failure signal disconnects busy relay, so, normally worked in battery management system to relay to busy relay
After element sends the relay job information for closure, because busy relay disconnects, its relay operation element connected
Open-circuit condition is also at, so as to successfully simulate the open fault of relay operation element.
Similarly, when relay operation element and busy relay parallel connection, failure output module output relay is passed through
Fault-signal closes busy relay, so, in battery management system normally to relay operation element to busy relay
After sending the relay job information for closure, because busy relay closes, its relay operation element in parallel is then located
In short-circuit condition, so as to which successfully simulate relay operation element is adhered failure.
Therefore, by above technical scheme, it can be automatically battery management system analogue relay failure, avoid work
Operated under elevated pressure conditions when personnel are manually operated, reduce personal safety hidden danger, also, pass through the event of automatic imitation relay
Barrier, can be more efficient and convenient than manual operation, greatly improves testing efficiency and test accuracy.
【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 schematic diagram of the fault testing apparatus of one embodiment of the present utility model；
Fig. 2 shows the preliminary filling relay of one embodiment of the present utility model and the structural representation of preliminary filling resistance；
Fig. 3 shows the schematic diagram of the fault testing apparatus of another embodiment of the present utility model；
Fig. 4 shows the schematic diagram of the fault testing apparatus repeat circuit module of one embodiment of the present utility model；
Fig. 5 shows the schematic diagram of the voltage sample panel of one embodiment of the present utility model；
Fig. 6 shows the relay contact analog control system frock wiring diagram of one embodiment of the present utility model；
Fig. 7 shows the block diagram of the battery test system 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 schematic diagram of the fault testing apparatus of one embodiment of the present utility model.
As shown in figure 1, the utility model embodiment provides a kind of fault testing apparatus 1, including：Relay module 11,
Including relay operation element 111 and busy relay 112, relay operation element 111 and busy relay 112 are connected or simultaneously
Join (situation that series connection is illustrate only in Fig. 1), relay module 11 also includes first input end and the second input；Battery management
System 12, the output end of battery management system 12 are connected to the first input end of relay module 11, for sending filter work
Make information to relay module 11, the working condition of control relay operation element 111；Failure output module 13, failure output
The output end of module 13 is connected to the second input of relay module 11, for sending filter fault-signal to testing relay
Device 112, the open and-shut mode of busy relay 112 is set to change, to change the actual working state of relay module 11.
Above technical scheme, for being that battery management system 12 is grasped when carrying out relay fault test manually in correlation technique
Make technical problem cumbersome, that potential safety hazard is high, be former relay work in the relay module 11 that battery management system 12 connects
Make element 111 and set up busy relay 112, and by relay operation element 111 and the serial or parallel connection of busy relay 112.
In a kind of implementation of the present utility model, busy relay 112 is open fault relay, and relay works
Element 111 and the series connection of open fault relay.
When relay operation element 111 and busy relay 112 are connected, pass through the output relay of failure output module 13
Fault-signal disconnects busy relay 112, so, in battery management system 12 normally to relay to busy relay 112
After operation element 111 sends the relay job information for closure, because busy relay 112 disconnects, its relay connected
Device operation element 111 is also at open-circuit condition, so as to successfully simulate the open fault of relay operation element 111.
In a kind of implementation of the present utility model, to be adhered power transfer relay, relay works busy relay 112
Element 111 and be adhered power transfer relay parallel connection.
When relay operation element 111 and busy relay 112 in parallel, pass through the output relay of failure output module 13
Fault-signal closes busy relay 112, so, in battery management system 12 normally to relay to busy relay 112
After operation element 111 sends the relay job information for closure, because busy relay 112 closes, its relay in parallel
Device operation element 111 is then in short-circuit condition, so as to which successfully simulate relay operation element 111 is adhered failure.
Therefore, by above technical scheme, it can be automatically battery management system analogue relay failure, avoid work
Operated under elevated pressure conditions when personnel are manually operated, reduce personal safety hidden danger, also, pass through the event of automatic imitation relay
Barrier, can be more efficient and convenient than manual operation, greatly improves testing efficiency and test accuracy.
The fault testing apparatus 1 also has following technical characteristic：
In a kind of implementation of the present utility model, busy relay 112 is fuse relay, failure output module
13 send fuse open fault signal to fuse relay, are off fuse relay.
Specifically, fuse relay can be connected with fuse, to simulate fuse open fault, be easy to pair
This failure situation is understood and grasped.
In another implementation of the present utility model, the insurance in fuse relay substitution correlation technique can be used
Silk, the break-make of fuse is directly represented by the open and-shut mode of fuse relay, can either effectively simulate fuse open circuit
Failure, electrical fuse element can also be saved, reduce testing cost.
As shown in figure 1, fault testing apparatus 1 also includes：Capacitance simulation module 13, relay module 11 is connected to, is used for
Electric capacity in simulated high-pressure power circuit, in real work, high voltage electric circuit can produce electric capacity when working and act on battery,
Therefore, can be by the electric capacity in the simulated high-pressure power circuit of capacitance simulation module 13, so that during fault simulation
Test environment is more nearly real test environment, lifts measuring accuracy.
In a kind of implementation of the present utility model, the including but not limited to main positive relay of relay operation element 111,
Preliminary filling relay and preliminary filling resistance.
Main positive relay is used for the break-make for controlling battery mesohigh loop and low tension loop, wherein, including high-voltage relay,
For connecting battery high pressure to the break-make of high voltage electric device.
There is larger electric capacity battery front end, if without precharge, main positive relay is directly connected with electric capacity, now battery electricity
Pressure is higher, and voltage is close to 0 on electric capacity, and now equivalent to instantaneous short circuit, load resistance is wire and relay contact resistance,
Resistance value very little, it can be seen from Ohm's law, voltage is big, and resistance is small, it is clear that immediate current up to amperes up to ten thousand, it is now main just after
Electrical equipment is certain to damage.Therefore, it is necessary to add preliminary filling process, main positive relay first disconnects, preliminary filling relay and preliminary filling resistance structure
Into preliminary filling loop first connect, resistance value in 30 more than Ω, assume in 300V by loop voltage, and now loop current maximum is also
10A, preliminary filling relay capacity is in more than 10A, preliminary filling loop safety.
So the effect of preliminary filling relay is exactly to control disconnection, the closure in preliminary filling loop, the effect of preliminary filling resistance is exactly to limit
Stream, specially connected in upper high-pressure process into high tension loop, reduce electric current during electric capacity preliminary filling, to protect in high voltage electric device
Electric capacity.
Preliminary filling resistance may be different relative to the position of preliminary filling relay in each project, and some project preliminary filling resistance is pre-
Relay rear end is filled, some project preliminary filling resistance is in preliminary filling relay front end.In order to realize the configurable of preliminary filling resistance position, such as
Shown in Fig. 2, preliminary filling relay K1 one end has the first link position U7, and the other end has the second link position U2, precharge
Resistance is arranged on U2 at the first link position U7 or the second link position by demountable structure.So, preliminary filling resistance R1 is realized
Position it is adjustable,
Wherein, the demountable structure can be made up of plug c and socket d, convenient plug, for convenient changing preliminary filling resistance position
Put, certainly, the demountable structure can also be any other connected mode.
As shown in figure 3, in a kind of implementation of the present utility model, failure output module 13 also includes：Coil fault
Module 131, one end of coil fault module 131 are connected to the output end of battery management system 12, and the other end is connected to relay
The relay driving coil 113 of module 11, open fault, short power failure or short for analogue relay driving coil 113
Earth fault.Certainly, relay driving coil 113 can be attributed to one in relay operation element 111, coil fault module
, can also be by for 113 serial or parallel connection of relay driving coil one during the failure of 131 analogue relay driving coils 113
Relay is realized.
By the technical scheme, can effective analogue relay driving coil failure, improve the comprehensive of test.
Fig. 4 shows the schematic diagram of the fault testing apparatus repeat circuit module of one embodiment of the present utility model, makes
Following failure can be simulated with relay module as shown in Figure 4：
1st, analogue relay open fault.
By taking the positive relay open circuit of master as an example, on normal in high-pressure process, main positive relay K2 closures, open fault relay
Device K2_O is closed, and adhesion fault relay K2_C disconnects.Voltage between high pressure sampled point U3 to U00 is between Bat+ to Bat-
Voltage.
During the simulation positive relay open fault of master, the digital output channel control low-voltage relay S7 of failure output module 13
Disconnect, cause K2_O relays to be opened a way, the voltage between high pressure sampled point U3 to U00 is 0, BMU by being diagnosed to voltage
Sentence, break and main positive relay open fault.
2nd, analogue relay adhesion fault.
By taking the positive relay adhesion of master as an example, on not in high-pressure process, main positive relay K2 disconnects, open fault relay
K2_O is closed, and adhesion fault relay K2_C disconnects.Voltage between high pressure sampled point U3 to U00 is 0.
During the simulation positive relay adhesion fault of master, the digital output channel control low-voltage relay S8 of failure output module 13
Closure, K2_C relays are caused to close, voltage of the voltage between high pressure sampled point U3 to U00 between Bat+ to Bat-, BMU
By diagnosing voltage, judge to lead positive relay adhesion fault.
3rd, preliminary filling resistance open fault is simulated.
With reference to Fig. 2, by taking preliminary filling resistive-open as an example, during preliminary filling, preliminary filling relay K1 is closed, open fault relay
Device K1_O is closed, and adhesion fault relay K1_C disconnects.Voltage between high pressure sampled point U3 to U00 is gradually increasing to be arrived for Bat+
Voltage between Bat-.
When simulating preliminary filling resistance open fault, the digital output channel control low-voltage relay S1 of failure output module 13 breaks
Open, cause R1_O relays to be opened a way, the voltage between high pressure sampled point U2 to U00 is always 0, BMU by examining voltage
It is disconnected, judge preliminary filling relay open fault.
4th, simulation fuse melts disconnected failure.
So that fuse Fuse2 melts disconnected failure as an example, fuse is simulated with relay Fuse2, normally in upper high-pressure process,
Fuse2 is closed, voltage of the voltage between high pressure sampled point U4 to U00 between Bat+ to Bat-.
When simulating fuse Fuse2 open faults, the digital output channel control low-voltage relay of failure output module 13
S3 disconnects, and causes Fuse2 relays to be opened a way, and the voltage between high pressure sampled point U4 to U00 is changed into 0, BMU by being carried out to voltage
Diagnosis, judges fuse Fuse2 open faults.
5th, former-wound coil failure.
By taking the positive relay coil open circuit of master as an example, normally in upper high-pressure process, BMU relay driving coil 113 passes through
Corresponding relay in the control relay module 11 of failure output module 13.
When setting main positive relay open fault, the positive relay driving of master that failure output module 13 exports BMU is breaking.
BMU detects to lead positive relay coil open fault by diagnosing main positive relay driving pin voltage.Main positive relay coil
It is short power supply, short also similar.All it is that the relay coil that BMU is exported by failure output module 13 drives short power supply or short
Ground.
As shown in figure 5, fault testing apparatus 1 also includes：Voltage sample panel 14, voltage sample panel 14 have multiple electricity
Sampling end is pressed, each voltage sampling port is connected to corresponding sampling location in relay module 11.In Fig. 5, each voltage sample
End is labeled with the title of corresponding sampling location.
In a kind of implementation of the present utility model, the failure output module 13 in fault testing apparatus 1 controls each
The break-make of busy relay 112, it is required to realize with sub switch, therefore the internal electric source of failure output module 13 can be connected with simultaneously
Multiple sub switchs of connection, each sub switch are connected to corresponding busy relay 112.
In another implementation of the present utility model, if the power of the internal electric source of failure output module 13 is not
Foot, external power supply can be introduced and powered for multiple sub switchs and corresponding busy relay 112, to make up the power of internal electric source
The defects of insufficient, ensure being smoothed out for fault test.As shown in fig. 6, external power supply is connected with multiple sub switchs of parallel connection, often
Individual sub switch is connected to corresponding busy relay 112, and all or part of busy relays 112 are powered by external power supply.
Certainly, in a practical situation, the distribution of sub switch pin is not limited to situation about being shown in Fig. 6, can also be any
Other situations, such as, understood with reference to Fig. 4, from the D1 in Fig. 4：DB25_1、D2：DB50、D3：Draw each inspection in DB25_2 positions
The pin that location is put, distribution are as shown in table 1 below.
Table 1
Fig. 7 shows the block diagram of the battery test system of one embodiment of the present utility model.
As shown in fig. 7, according to the battery test system 700 of one embodiment of the present utility model, including any of the above-described reality
Fault testing apparatus 1 in existing mode, therefore, the battery test system 700 have and the failure in any of the above-described implementation
The identical technique effect of test device 1, 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,
It can be automatically battery management system analogue relay failure, avoid manually operated, reduce potential safety hazard, also, greatly
Ground improves testing efficiency.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, represent
There may be three kinds of relations, for example, A and/or B, can be represented：Individualism A, while A and B be present, individualism B these three
Situation.In addition, character "/" herein, it is a kind of relation of "or" to typically represent forward-backward correlation object.
Depending on linguistic context, word as used in this " if " can be construed to " ... when " or
" when ... " or " in response to determining " or " in response to detection ".Similarly, depending on linguistic context, phrase " if it is determined that " or
" if detection (condition or event of statement) " can be construed to " when it is determined that when " or " in response to determining " or " work as detection
When (condition or event of statement) " or " in response to detecting (condition or event of statement) ".
It should be noted that terminal involved in the utility model embodiment can include but is not limited to personal computer
(Personal Computer, PC), personal digital assistant (Personal Digital Assistant, PDA), wireless handheld
Equipment, tablet personal computer (Tablet Computer), mobile phone, MP3 player, MP4 players etc..
In several embodiments provided by the utility model, it should be understood that disclosed systems, devices and methods,
It can realize by another way.For example, device embodiment described above is only schematical, for example, the list
The division of member, only a kind of division of logic function, can there is other dividing mode, for example, multiple units when actually realizing
Or component can combine or be desirably integrated into another system, or some features can be ignored, or not perform.It is another, institute
Display or the mutual coupling discussed or direct-coupling or communication connection can be by some interfaces, device or unit
INDIRECT COUPLING or communication connection, can be electrical, mechanical or other forms.
In addition, each functional unit in each embodiment of the utility model can be integrated in a processing unit,
Can be that unit is individually physically present, can also two or more units it is integrated in a unit.It is above-mentioned integrated
Unit can both be realized in the form of hardware, can also be realized in the form of hardware adds SFU software functional unit.
The above-mentioned integrated unit realized in the form of SFU software functional unit, can be stored in one and computer-readable deposit
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are causing a computer
Device (can be personal computer, server, or network equipment etc.) or processor (Processor) perform the utility model
The part steps of each embodiment methods described.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage
(Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disc or CD
Etc. it is various can be with the medium of store program codes.
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. fault testing apparatus, it is characterised in that including：Relay module, including relay operation element and busy relay, the relay operation element and it is described test after Electrical equipment serial or parallel connection, the relay module also include first input end and the second input；Battery management system, the output end of the battery management system are connected to first input of the relay module End, for sending filter job information to the relay module, for controlling the relay job information；Failure output module, the output end of the failure output module are connected to second input of the relay module End, for sending filter fault-signal to the busy relay, makes the open and-shut mode of the busy relay change, To change the actual working state of the relay module.
- 2. fault testing apparatus according to claim 1, it is characterised in that the busy relay is open fault relay Device, the relay operation element and open fault relay series connection.
- 3. fault testing apparatus according to claim 1, it is characterised in that the busy relay is to be adhered failure relay Device, the relay operation element and it is described be adhered power transfer relay parallel connection.
- 4. fault testing apparatus according to claim 1, it is characterised in that the busy relay is fuse relay Device, the failure output module send fuse open fault signal to the fuse relay, make the fuse relay Device is off.
- 5. fault testing apparatus according to claim 1, it is characterised in that also include：Capacitance simulation module, the relay module is connected to, for the electric capacity in simulated high-pressure power circuit.
- 6. fault testing apparatus according to any one of claim 1 to 5, it is characterised in that the relay work member Part includes main positive relay, preliminary filling relay and preliminary filling resistance.
- 7. fault testing apparatus according to claim 6, it is characterised in that one end of the preliminary filling relay has first Link position, the other end have the second link position, and the preliminary filling resistance is arranged on first connection by demountable structure At position or second link position.
- 8. fault testing apparatus according to any one of claim 1 to 5, it is characterised in that the failure output module Also include：Coil fault module, one end of the coil fault module are connected to the output end of the battery management system, the other end The relay driving coil of the relay module is connected to, for simulating the open fault, short of the relay driving coil Power failure or short earth fault.
- 9. fault testing apparatus according to claim 6, it is characterised in that also include：Voltage sample panel, the voltage sample panel have multiple voltage sampling ports, and each voltage sampling port is connected to described Corresponding sampling location in relay module.
- 10. fault testing apparatus according to any one of claim 1 to 5, it is characterised in that also include：External power supply, the external power supply are connected with multiple sub switchs of parallel connection, and each sub switch is connected to the corresponding survey Relay is tried, all or part of busy relays are powered by the external power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720837080.5U CN206832958U (en) | 2017-06-30 | 2017-06-30 | Fault testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720837080.5U CN206832958U (en) | 2017-06-30 | 2017-06-30 | Fault testing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206832958U true CN206832958U (en) | 2018-01-02 |
Family
ID=60778839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720837080.5U Active CN206832958U (en) | 2017-06-30 | 2017-06-30 | Fault testing apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN206832958U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109613377A (en) * | 2019-01-11 | 2019-04-12 | 蜂巢能源科技有限公司 | Battery analog system relay status detects analog circuit and device |
| CN109920314A (en) * | 2019-04-16 | 2019-06-21 | 广东交通职业技术学院 | A kind of relay fault simulation circuit and relay demonstrator |
| CN112765821A (en) * | 2021-01-25 | 2021-05-07 | 中国第一汽车股份有限公司 | Relay diagnosis test method, device, storage medium, upper computer and system |
| CN113671368A (en) * | 2021-10-25 | 2021-11-19 | 广东电网有限责任公司东莞供电局 | Relay circuit fault testing system and method |
-
2017
- 2017-06-30 CN CN201720837080.5U patent/CN206832958U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109613377A (en) * | 2019-01-11 | 2019-04-12 | 蜂巢能源科技有限公司 | Battery analog system relay status detects analog circuit and device |
| CN109920314A (en) * | 2019-04-16 | 2019-06-21 | 广东交通职业技术学院 | A kind of relay fault simulation circuit and relay demonstrator |
| CN112765821A (en) * | 2021-01-25 | 2021-05-07 | 中国第一汽车股份有限公司 | Relay diagnosis test method, device, storage medium, upper computer and system |
| CN112765821B (en) * | 2021-01-25 | 2023-04-14 | 中国第一汽车股份有限公司 | Relay diagnosis test method, device, storage medium, upper computer and system |
| CN113671368A (en) * | 2021-10-25 | 2021-11-19 | 广东电网有限责任公司东莞供电局 | Relay circuit fault testing system and method |
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