CN206559134U - Stand-by power supply discharge control device - Google Patents
Stand-by power supply discharge control device Download PDFInfo
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- CN206559134U CN206559134U CN201720247837.5U CN201720247837U CN206559134U CN 206559134 U CN206559134 U CN 206559134U CN 201720247837 U CN201720247837 U CN 201720247837U CN 206559134 U CN206559134 U CN 206559134U
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- 238000012546 transfer Methods 0.000 claims abstract description 35
- 238000012544 monitoring process Methods 0.000 claims abstract description 16
- 230000004044 response Effects 0.000 claims abstract description 6
- 230000005611 electricity Effects 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 4
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 230000003993 interaction Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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Abstract
The utility model is related to a kind of stand-by power supply discharge control device, including：AC DC modules, its input is electrically connected with AC power；Power transfer module, first input end is electrically connected with the output end of the AC DC modules, and the second input is electrically connected with the output end of the stand-by power supply, and its output end is electrically connected with the power end of security monitoring substation；When the first input end is without DC supply input, AC power power switching is powered into stand-by power supply；Controller, response external triggering command sends open command to the ON-OFF control circuit；The ON-OFF control circuit, after the open command that the controller is sent is received, disconnects the electrical connection between the AC DC modules and the power transfer module, makes the first input end of the power transfer module without DC supply input.By said apparatus, workman need to only touch the electric discharge of the i.e. achievable stand-by power supply of external trigger of controller.
Description
Technical field
The utility model is related to field of circuit technology, more particularly to a kind of stand-by power supply discharge control device.
Background technology
To ensure the safety in production in colliery, it will usually be each mine equipment safety monitoring system.The security monitoring system
System can set up ground central station on ground, and set up in underground multiple security monitoring substations, and each safe substation is by the number of collection
Ground central station is uploaded to when factually, so that ground central station is monitored in real time to subsurface environment, the production peace of underground is ensured
Entirely.For reply underground accident, each security monitoring substation is equipped with a stand-by power supply, and when stand-by power supply can not be protected
When card security monitoring substation continuously works 1 hour, stand-by power supply should be changed in time.
At present, the stand-by power supply used under coal mine is battery, to ensure the life-span of stand-by power supply, need to be periodically to be standby
Discharged with power supply.In the prior art, typically workman cuts off the communication power supply of security monitoring substation, security monitoring point
Internal automatic switchover stand-by power supply of standing is powered, and is realized with this and stand-by power supply is discharged.But the friendship of some security monitoring substations
The communication power supply for flowing power supply and other electrical equipments shares a switch control, when the switches are opened, security monitoring
Substation automatically switches to stand-by power supply and powered, and other electrical equipments are stopped, and certain loss is brought to downhole production.
The content of the invention
The utility model aims to solve the problem that the communication power supply of security monitoring substation is shared with other equipment in the prior art
The switch control of AC-powered power sharing one, cause when the switches are opened, the problem of other equipment is stopped.
To solve the above problems, the utility model provides a kind of stand-by power supply discharge control device, including：
AC-DC module, its input is electrically connected with AC power, for the alternating current of AC power to be converted into direct current
Electricity；
Power transfer module, first input end is electrically connected with the output end of the AC-DC module, the second input with it is described
The output end electrical connection of stand-by power supply, its output end is electrically connected with the power end of security monitoring substation；When the first input end
During without DC supply input, AC power power switching is powered into stand-by power supply；
Controller, response external triggering command sends open command to ON-OFF control circuit；
The ON-OFF control circuit, for controlling conducting between the AC-DC module and the power transfer module；
After the open command that the controller is sent is received, disconnect between the AC-DC module and the power transfer module
Electrical connection, makes the first input end of the power transfer module without DC supply input.
Alternatively, in above-mentioned stand-by power supply discharge control device：
The AC-DC module, including AC-DC on-off circuits, filter circuit and the reverse-connection preventing circuit being sequentially connected；
The ON-OFF control circuit, is connected between the filter circuit and the reverse-connection preventing circuit.
Alternatively, above-mentioned stand-by power supply discharge control device, in addition to：
Output voltage Acquisition Circuit, the output voltage values for gathering stand-by power supply output end in real time；
The controller, receives the output voltage values of output voltage Acquisition Circuit collection, when the output voltage values are less than
During the first given threshold, close command is sent to the ON-OFF control circuit；
The ON-OFF control circuit, after the close command that the controller is sent is received, recovers the AC-DC module
With the electrical connection between the power transfer module；The power transfer module, when first input end recovery direct current is defeated
It is fashionable, stand-by power supply power switching is powered into AC power.
Alternatively, above-mentioned stand-by power supply discharge control device, in addition to：
Time reading circuit, is electrically connected with the controller, receives the control instruction of the controller, described when receiving
After open command, current turn-off time is sent, after the close command is received, current closing time is sent；
The controller, receives and stores the turn-off time and the closing time, when receiving the closing time
When, obtain the closing time and the time difference of the turn-off time and storage.
Alternatively, above-mentioned stand-by power supply discharge control device, in addition to：
Liquid crystal display, receives time difference and display that the controller is sent.
Alternatively, above-mentioned stand-by power supply discharge control device, in addition to warning circuit；
The controller, when the time difference being less than the second given threshold, sends alarm command to the warning circuit；
The warning circuit, receives the control instruction of the controller, after the alarm command is received, sends alarm
Signal.
Alternatively, above-mentioned stand-by power supply discharge control device, in addition to charging circuit and input voltage Acquisition Circuit；
The charging circuit, input is electrically connected with the output end of the AC-DC module, its output end and stand-by power supply
Input is connected, for protecting the stand-by power supply when the stand-by power supply charges；
The input voltage Acquisition Circuit, the input voltage value for gathering stand-by power supply input in real time；
The controller, receives the input voltage value of input voltage Acquisition Circuit collection, when the input voltage value is higher than
During three given thresholds, cut-out instruction is sent to the charging circuit；
The charging circuit, receives the control instruction of the controller, after the cut-out instruction is received, cut off its with
Electrical connection between the stand-by power supply.
Alternatively, in above-mentioned stand-by power supply discharge control device：
The charging circuit, receives the control instruction of the controller, after the close command is received, recover its with
Electrical connection between the stand-by power supply.
Alternatively, above-mentioned stand-by power supply discharge control device, in addition to communicating circuit and host computer；
The host computer, data interaction is carried out by the communicating circuit and the controller.
In the stand-by power supply discharge control device that the utility model is provided, control AC-DC module and Power convert are provided with
The ON-OFF control circuit of module electrical connection, when controller response external triggering command, sends open command to ON-OFF control circuit
Afterwards, ON-OFF control circuit disconnects the electrical connection between AC-DC module and power transfer module, makes the first defeated of power transfer module
Enter end without DC supply input；When first end is without input, power transfer module automatically switches to the second supplying power for input end, i.e., standby
Power supply is powered.In this way, workman need to only touch the electric discharge of the i.e. achievable stand-by power supply of external trigger of controller, without disconnecting its friendship
The switch of power supply is flowed, so as to avoid influenceing other electrical equipments under same switch control.
Brief description of the drawings
Fig. 1 is the principle schematic diagram of stand-by power supply discharge control device described in the utility model embodiment.
Fig. 2 is the principle schematic diagram of stand-by power supply discharge control device described in the utility model another embodiment.
Embodiment
The utility model embodiment is further illustrated below with reference to accompanying drawing.
As shown in figure 1, described in the present embodiment stand-by power supply discharge control device principle schematic diagram, including AC-
DC modules 1, power transfer module 2, ON-OFF control circuit 3 and controller 4.Wherein, the input and alternating current of AC-DC module 1
Source is electrically connected, and for the alternating current of AC power to be converted into direct current, the AC-DC module 1 is using conventional integration module
It can be achieved, or can also be realized using transformer, rectification circuit, filter circuit and reverse-connection preventing circuit.Power transfer module 2
First input end electrically connected with the output end of AC-DC module 1, the output end of its second input and the stand-by power supply is electrically connected
Connect, its output end is electrically connected with the power end of security monitoring substation, for being powered for security monitoring substation, the Power convert mould
Block 2 can be using conventional integration module, such as double power supply automatic switching switch；When the first input end of power transfer module 2
During without DC supply input, the power transfer module 2 automatically powers AC power power switching into stand-by power supply.And controller
4, response external triggering command sends open command to ON-OFF control circuit 3；The external trigger instruction, can be outside controller 4
The switch triggering connect, also can be by triggering with the host computer that the controller 4 is communicated.ON-OFF control circuit 3, it is described for controlling
Conducting between AC-DC module 1 and the power transfer module 2；Sent out when ON-OFF control circuit 3 receives the controller 4
After the open command sent, the electrical connection between the AC-DC module 1 and the power transfer module 2 is disconnected, turns the power supply
The first input end of block 2 is changed the mold without DC supply input, then, the power transfer module 2 is by AC power power switching into standby
Powered with power supply.
In stand-by power supply discharge control device described in the present embodiment, when the response external triggering command of controller 4, send disconnected
Open after instruction to ON-OFF control circuit 3, ON-OFF control circuit 3 disconnects being electrically connected between AC-DC module 1 and power transfer module 2
Connect, make the first input end of power transfer module 2 without DC supply input, when first end is without input, power transfer module 2 is automatic
The second supplying power for input end, i.e. stand-by power supply is switched to power.In this way, the external trigger that workman need to only touch controller 4 can be real
The electric discharge of existing stand-by power supply, without disconnecting the switch of its AC power, so as to avoid influenceing other use under same switch control
Electric equipment.
Specifically, voltage can be that 127V to 660V alternating current is changed into the direct current that voltage is 30V by AC-DC module 1,
It includes AC-DC on-off circuits, filter circuit and the reverse-connection preventing circuit being sequentially connected；And ON-OFF control circuit 3 may connect to institute
State between filter circuit and the reverse-connection preventing circuit, in this way, on the one hand can be exported using AC-DC on-off circuits and filter circuit
Direct current power for ON-OFF control circuit 3, to reduce the loss of stand-by power supply；The effective of reverse-connection preventing circuit is also ensured in addition
Property, prevent due between the AC-DC module 1 and the power transfer module 2 electrical connection disconnect after, the stand-by power supply to
The AC-DC module 1 is discharged.The ON-OFF control circuit 3 can be realized by devices such as digital switch, relays.
Further, above-mentioned control device, as shown in Fig. 2 also including output voltage Acquisition Circuit 5, for gathering in real time
The output voltage values of stand-by power supply output end；The output voltage Acquisition Circuit 5 can be realized using conventional voltage sampling circuit.
And controller 4, the output voltage values of the collection of output voltage Acquisition Circuit 5 are received, when the output voltage values are less than the first setting
During threshold value, close command is sent to the ON-OFF control circuit 3.The ON-OFF control circuit 3, when receiving the controller 4
After the close command of transmission, recover the electrical connection between the AC-DC module 1 and the power transfer module 2.The power supply turns
Block 2 is changed the mold, when the first input end has DC supply input, stand-by power supply power switching is powered into AC power.Tool
Body, stand-by power supply is in discharge process, and its output voltage values reduces with the reduction of dump energy, and the first given threshold
Can be 22V or 21V etc., when the output voltage values that controller 4 is received are less than the first given threshold, as reserve battery is remaining
During not enough power supply, controller 4 just sends close command to the ON-OFF control circuit 3, recover the AC-DC module 1 with it is described
The first input end recovery DC supply input of electrical connection between power transfer module 2, immediately power transfer module 2, Zhi Housuo
State power transfer module 2 stand-by power supply power switching is powered into AC power.In this way, workman only needs to touch after separated in time
Send out controller 4, you can realize the electric discharge of stand-by power supply, and in the case of stand-by power supply not enough power supply, above-mentioned control device
AC power can be automatically switched back into power, workman without real-time monitored stand-by power supply discharge scenario so as in stand-by power supply electricity
Recover AC power when not enough in time to power, the above method greatly reduces the workload of workman.
To count the cruising time of stand-by power supply, as shown in Fig. 2 above-mentioned control device also includes time reading circuit 6, institute
The reading of time can be realized by clock chip by stating time reading circuit 6.The time reading circuit 6 and the electricity of controller 4
Connection, receives the control instruction of the controller 4, after the open command is received, and sends current turn-off time, works as reception
To after the close command, current closing time is sent；The controller 4, when receiving and storing the turn-off time and close
Between, when receiving closing time, obtain the closing time and the time difference of the turn-off time and storage.Pass through above-mentioned control
Device processed, after workman can be at interval of certain time, extracts data from the memory device of controller 4, and according to the data of storage
Judge which stand-by power supply needs replacing, discharge scenario and statistics without the real-time monitored stand-by power supply when stand-by power supply discharges
Discharge time, also provide guarantee for downhole safety production.
In addition, being checked the time difference for convenience of workman, above-mentioned control device also includes liquid crystal display, for receiving the control
The time difference of the transmission of device 4 processed and display.Meanwhile, to remind workman to change stand-by power supply in time, it is less than second when the time difference
During given threshold, controller 4 also sends alarm command to warning circuit, and the control that warning circuit receives the controller 4 refers to
Order, when receiving alarm command, sends alarm signal, to remind workman to change stand-by power supply.Wherein, the second setting threshold
Value can be set according to demand, such as one hour, and two hours etc., the warning circuit can be by buzzer, light emitting diode etc.
Composition.
Further, the charging to ensure stand-by power supply is safe, as shown in Fig. 2 above-mentioned control device also includes charging electricity
Road 7, the charging circuit 7 is the circuit for being commonly used in protection stand-by power supply, can be realized by conventional charge protector.
The input of the charging circuit 7 is electrically connected with the output end of AC-DC module 1, the input electricity of its output end and stand-by power supply
Connection, for protecting stand-by power supply when reserve battery charges, such as when the output voltage of the output end of AC-DC module 1 is excessive
When, charging circuit 7 can reduce the magnitude of voltage of stand-by power supply input, meanwhile, charging circuit 7 can also control stand-by power supply to input
The size of current at end, to prevent electric current is excessive from causing circuit, stand-by power supply seriously to generate heat.In addition, as shown in Fig. 2 above-mentioned control
Device also includes input voltage Acquisition Circuit 8, the input voltage value for gathering stand-by power supply input in real time, the input electricity
Acquisition Circuit 8 is pressed to be realized by conventional voltage collection circuit.In charging, the input voltage value of stand-by power supply is with standby electricity
The increase of the electricity in source and rise, after input voltage value, which rises, reaches certain numerical value, the electricity of stand-by power supply is filled, and continues to fill
Life-span electric then that stand-by power supply can be influenceed.Therefore controller 4 receives the input voltage value of the collection of input voltage Acquisition Circuit 8, when it
When judging that input voltage value is higher than three given thresholds, cut-out instruction is sent to charging circuit 7, charging circuit 7 receives the control
The control instruction of device 4 processed, after cut-out instruction is received, cuts off its electrical connection between the stand-by power supply.By above-mentioned
Scheme, can prevent the floating charge of stand-by power supply, extend the service life of stand-by power supply, improve the reliability of security monitoring substation, its
Described in the 3rd given threshold can may be configured as 26V, 25V etc. depending on the actual conditions according to stand-by power supply.
And when stand-by power supply electricity exhausts, it is stand-by power supply charging in time also to need.I.e. when controller 4 receives output voltage
The output voltage values that Acquisition Circuit 5 is gathered, when output voltage values are less than the first given threshold, illustrate reserve battery dump energy
Deficiency, now, controller 4 send close command to ON-OFF control circuit 3 while, the charging circuit 7 also receive described in close
Close instruction；The charging circuit 7 receives the control instruction of the controller 4, after close command is received, recover its with it is described
Electrical connection between stand-by power supply, when stand-by power supply dump energy is not enough, to be charged in time for stand-by power supply.
In addition, in stand-by power supply discharge control device described in any of the above-described embodiment, as shown in Fig. 2 also including upper
Machine 10 and communicating circuit 9, host computer 10 carry out data exchange by communicating circuit 9 and the controller 4, can be by controller 4
The data of storage are uploaded to host computer 10 by communicating circuit 9, are easy to the storage of data and check, in addition, host computer 10 can lead to
Cross communicating circuit 9 and send triggering command or other control instructions to controller 4.Communicating circuit 9 can be real by conventional communicating circuit
It is existing.
Controller 4 in stand-by power supply discharge control device described in any of the above-described embodiment, by single-chip microcomputer or be able to can be compiled
The grade device combination of journey logic controller 4 conventional program realizes that the utility model is not related to the improvement in any program.In addition, control
Device 4 processed can be powered by the output end of power transfer module 2, to ensure not influenceing its work in the case where AC power disconnects
Make, the circuit of other each several parts can also be powered by the output end of power transfer module 2, can also be supplied by the output end of AC-DC module 1
Electricity.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in foregoing embodiments, or which part technical characteristic is carried out etc.
With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from each embodiment technology of the utility model
The spirit and scope of scheme.
Claims (9)
1. a kind of stand-by power supply discharge control device, it is characterised in that including：
AC-DC module, its input is electrically connected with AC power, for the alternating current of AC power to be converted into direct current；
Power transfer module, first input end is electrically connected with the output end of the AC-DC module, the second input with it is described standby
The output end electrical connection of power supply, its output end is electrically connected with the power end of security monitoring substation；When the first input end is without straight
During stream electricity input, AC power power switching is powered into stand-by power supply；
Controller, response external triggering command sends open command to ON-OFF control circuit；
The ON-OFF control circuit, for controlling conducting between the AC-DC module and the power transfer module；When connecing
Receive after the open command that the controller is sent, disconnect being electrically connected between the AC-DC module and the power transfer module
Connect, make the first input end of the power transfer module without DC supply input.
2. stand-by power supply discharge control device according to claim 1, it is characterised in that：
The AC-DC module, including AC-DC on-off circuits, filter circuit and the reverse-connection preventing circuit being sequentially connected；
The ON-OFF control circuit, is connected between the filter circuit and the reverse-connection preventing circuit.
3. stand-by power supply discharge control device according to claim 1, it is characterised in that also include：
Output voltage Acquisition Circuit, the output voltage values for gathering stand-by power supply output end in real time；
The controller, receives the output voltage values of output voltage Acquisition Circuit collection, when the output voltage values are less than first
During given threshold, close command is sent to the ON-OFF control circuit；
The ON-OFF control circuit, after the close command that the controller is sent is received, recovers the AC-DC module and institute
State the electrical connection between power transfer module；
The power transfer module, when the first input end recovers DC supply input, stand-by power supply power switching is struck a bargain
Stream power supply is powered.
4. stand-by power supply discharge control device according to claim 3, it is characterised in that also include：
Time reading circuit, is electrically connected with the controller, receives the control instruction of the controller, when receiving the disconnection
After instruction, current turn-off time is sent, after the close command is received, current closing time is sent；
The controller, receives and stores the turn-off time and the closing time, when receiving the closing time, obtain
Time difference and storage to the closing time and the turn-off time.
5. stand-by power supply discharge control device according to claim 4, it is characterised in that also include：
Liquid crystal display, receives time difference and display that the controller is sent.
6. stand-by power supply discharge control device according to claim 4, it is characterised in that also including warning circuit；
The controller, when the time difference being less than the second given threshold, sends alarm command to the warning circuit；
The warning circuit, receives the control instruction of the controller, after the alarm command is received, sends alarm signal
Number.
7. stand-by power supply discharge control device according to claim 6, it is characterised in that also including charging circuit and input
Voltage collection circuit；
The charging circuit, input is electrically connected with the output end of the AC-DC module, the input of its output end and stand-by power supply
End connection, for protecting the stand-by power supply when the stand-by power supply charges；
The input voltage Acquisition Circuit, the input voltage value for gathering stand-by power supply input in real time；
The controller, receives the input voltage value of input voltage Acquisition Circuit collection, when the input voltage value is higher than the 3rd
During given threshold, cut-out instruction is sent to the charging circuit；
The charging circuit, receives the control instruction of the controller, after the cut-out instruction is received, cut off its with it is described
Electrical connection between stand-by power supply.
8. stand-by power supply discharge control device according to claim 7, it is characterised in that：
The charging circuit, receives the control instruction of the controller, after the close command is received, recover its with it is described
Electrical connection between stand-by power supply.
9. the stand-by power supply discharge control device according to claim any one of 1-8, it is characterised in that also including communication electricity
Road and host computer；
The host computer, data interaction is carried out by the communicating circuit and the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720247837.5U CN206559134U (en) | 2017-03-15 | 2017-03-15 | Stand-by power supply discharge control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720247837.5U CN206559134U (en) | 2017-03-15 | 2017-03-15 | Stand-by power supply discharge control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206559134U true CN206559134U (en) | 2017-10-13 |
Family
ID=60364723
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| CN201720247837.5U Active CN206559134U (en) | 2017-03-15 | 2017-03-15 | Stand-by power supply discharge control device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687725A (en) * | 2019-01-28 | 2019-04-26 | 武汉恒泰通技术有限公司 | A kind of high frequency switch power commutating module |
| CN110224405A (en) * | 2019-07-12 | 2019-09-10 | 威创集团股份有限公司 | The switching device and method of more power grids |
| CN111502969A (en) * | 2020-04-08 | 2020-08-07 | 上海优耐特斯压缩机有限公司 | Constant-pressure control system and method for air compression station |
-
2017
- 2017-03-15 CN CN201720247837.5U patent/CN206559134U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109687725A (en) * | 2019-01-28 | 2019-04-26 | 武汉恒泰通技术有限公司 | A kind of high frequency switch power commutating module |
| CN110224405A (en) * | 2019-07-12 | 2019-09-10 | 威创集团股份有限公司 | The switching device and method of more power grids |
| CN111502969A (en) * | 2020-04-08 | 2020-08-07 | 上海优耐特斯压缩机有限公司 | Constant-pressure control system and method for air compression station |
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