CN209343161U - Novel intelligent takes control switch and its low pressure expense control Anti-current stealing meter - Google Patents
Novel intelligent takes control switch and its low pressure expense control Anti-current stealing meter Download PDFInfo
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- CN209343161U CN209343161U CN201920122193.6U CN201920122193U CN209343161U CN 209343161 U CN209343161 U CN 209343161U CN 201920122193 U CN201920122193 U CN 201920122193U CN 209343161 U CN209343161 U CN 209343161U
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- 238000004891 communication Methods 0.000 claims abstract description 52
- 238000005070 sampling Methods 0.000 claims abstract description 48
- 230000005611 electricity Effects 0.000 claims abstract description 10
- 230000006870 function Effects 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 18
- 239000003990 capacitor Substances 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
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- 230000008054 signal transmission Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Abstract
The utility model discloses a kind of novel intelligents to take control switch, including power module, controller module, voltage sample module, current sampling module, clock module, on/off switch module, on/off switch control module and communication module；Power module power supply；Voltage sample module samples power supply voltage signal simultaneously uploads；Current sampling module sampling power current signal simultaneously uploads；Clock module provides standard clock signal；Communication module communication；Controller module receives external data information by communication module, exports combined floodgate or sub-gate signal gives on/off switch control module, on/off switch control module driving on/off switch module action simultaneously drives external motor to act, realizes combined floodgate or sub-switching operation.The invention also discloses include that the novel intelligent takes the low pressure expense control Anti-current stealing meter controlled and switched.The utility model is stable, it is reliable, be not easy to be destroyed and have anti-stealing electricity function.
Description
Technical field
The utility model takes control switch and its low pressure expense control Anti-current stealing meter more particularly to a kind of novel intelligent.
Background technique
With the development and the improvement of people's living standards of economic technology, electric energy has become in people's production and life
Essential secondary energy sources bring endless convenience to people's production and life.But with Power System Intelligent
Horizontal continuous improvement, the non-all standing of low voltage three-phase band CT user charge control and stealing electricity phenomenon still emerge one after another, and cause electric system
Increased costs and electricity charge economic loss.
Currently, existing low voltage three-phase user is with the connection relationship between CT electric energy meter and breaker of registering one's residence substantially such as Fig. 1 institute
Show.It registers one's residence on-load switch it can be seen from the figure that three-phase power line first passes through CT reconnection, (type on-load switch of registering one's residence is general
Using breaker, and breaker, generally using the switch for only having trip avoidance function, combined floodgate also needs manual operation).But due to entering
Family breaker is mounted on user side, can not shield and seal up, and user can be with the control route of artificial destruction breaker, so that opening
Pass loses trip avoidance function, takes control trip avoidance function and loses, cannot achieve and remotely control the power failure of user.
Summary of the invention
One of the purpose of this utility model be to provide a kind of stabilization, it is reliable, be not easy to be destroyed and have anti-stealing electricity function
Novel intelligent take control switch.
The two of the purpose of this utility model are that providing a kind of includes that the novel intelligent expense controls the low pressure expense control switched
Anti-current stealing meter.
This novel intelligent provided by the utility model takes control switch, including power module, controller module, voltage sample
Module, current sampling module, clock module, on/off switch module, on/off switch control module and communication module；Voltage sample module,
Current sampling module, clock module, on/off switch control module and communication module are connect with controller module, on/off switch module with
The connection of on/off switch control module；Power module takes control switch power supply to the intelligence；Voltage sample module is used for novel to inputting
The power supply of intelligence expense control switch carries out voltage signal sampling and uploads controller module；Current sampling module is used for novel to inputting
The power supply of intelligence expense control switch carries out current signal sampling and uploads controller module；Clock module to controller module for mentioning
For standard clock signal；Communication module takes control switch and PERCOM peripheral communication for described；Controller module is for passing through communication module
External data information is received, and voltage sampling signal and current sampling signal export combined floodgate or sub-gate signal to conjunction based on the received
Separating brake control module, on/off switch control module are realized to taking for driving on/off switch module action and external motor is driven to act
Control switch carries out combined floodgate or sub-switching operation.
The novel intelligent expense control switch further includes infrared sending/receiving module；Infrared sending/receiving module and controller
Module connection takes control Anti-current stealing meter for low pressure and carries out data communication with outside by way of infrared communication.
The infrared sending/receiving module is the module being made of the infrared chip of model HS0038B.
The novel intelligent expense control switch further includes display module；Display module is connect with controller module, for showing
Show the working condition of the novel intelligent expense control switch.
The novel intelligent expense control switch further includes memory module；Memory module is connect with controller module, for depositing
Store up the data of the novel intelligent expense control switch.
The memory module is the module being made of the storage chip of model 24LC256-I/SN.
The communication module is the module being made of the chip of model SN65LBC184DR.
The controller module is the module being made of the controller chip of model STM32F030R8T6.
The clock module is the module being made of the clock chip of model PCF8563T.
The utility model additionally provides a kind of low pressure expense control Anti-current stealing meter, and the low pressure takes control electricity stealing preventive metering dress
It sets and is mounted in independent cabinet, including electric energy meter, current sampling mutual inductor and on-load switch of registering one's residence, further comprise above-mentioned new
Type intelligently takes control switch；Power network line is opened by connecting load of registering one's residence after novel intelligent expense control switch and current sampling mutual inductor
It closes, the power end and voltage sampling port of electric energy meter are attempted by the input terminal of novel intelligent expense control switch, current sampling mutual inductor
Sampled output connection electric energy meter current sampling port；The communication module that novel intelligent takes control switch connects electricity by communication line
Can table communication module and communication；Novel intelligent takes headend equipment of the control switch as existing intelligent electric energy meter, realizes and synchronizes
Measure monitor, the function of taking control separating brake and expense control combined floodgate.
This novel intelligent provided by the utility model take control switch and its low pressure expense control Anti-current stealing meter, pass through by
The novel intelligent takes switch, and design takes power supply to work for three-phase kilowatt-hour meter in the front end of existing intelligent electric energy meter through upper end altogether, real
The data sampling of existing electric energy and work with the continuous electricity of intelligent electric energy meter, thus intelligent electric energy meter front end realize electrical energy measurement,
Monitor and take control divide-shut brake；After tripping power-off, three phase metering meter, which still charges, can normally realize long-range control, to ensure that
Existing electric system takes control reliability and stability；And low pressure take control Anti-current stealing meter whole modules setting exist
In the same independent cabinet, the integrality and invulnerability of low pressure expense control Anti-current stealing meter are also achieved.
Detailed description of the invention
Connection relationship diagram of the Fig. 1 between existing electric energy meter and breaker of registering one's residence.
The novel intelligent expense control switch and the company between existing electric energy meter, on-load switch of registering one's residence that Fig. 2 is the utility model
Connect relation schematic diagram.
Fig. 3 is the functional block diagram that the novel intelligent of the utility model takes control switch.
Fig. 4 is the circuit theory schematic diagram for the power module that the novel intelligent of the utility model takes control switch.
Fig. 5 is the circuit theory schematic diagram for the module of voltage sample all the way that the novel intelligent of the utility model takes control switch.
Fig. 6 is the circuit theory schematic diagram for the current sampling module that the novel intelligent of the utility model takes control switch.
Fig. 7 is the circuit theory schematic diagram for the infrared sending/receiving module that the novel intelligent of the utility model takes control switch.
Fig. 8 is the circuit theory schematic diagram for the communication module that the novel intelligent of the utility model takes control switch.
Fig. 9 is the circuit theory schematic diagram for the controller module that the novel intelligent of the utility model takes control switch.
Figure 10 is the circuit theory schematic diagram for the memory module that the novel intelligent of the utility model takes control switch.
Figure 11 is the circuit theory schematic diagram for the clock module that the novel intelligent of the utility model takes control switch.
Specific embodiment
Be illustrated in figure 2 the utility model low pressure expense control Anti-current stealing meter in, novel intelligent take control switch with now
Connection relationship diagram between some electric energy meters, breaker of registering one's residence: the low pressure expense control Anti-current stealing meter is mounted on solely
In vertical cabinet, wherein novel intelligent expense control switch is mounted in cabinet 1-1, and on-load switch of registering one's residence is mounted in cabinet 1-2, case
Body 1-1 and cabinet 1-2 is the independent case body of an entirety, and inside is separated by partition；Wherein, low pressure takes the anti-electricity-theft meter of control
Amount device includes electric energy meter, current sampling mutual inductor, register one's residence on-load switch and novel intelligent expense control switch；Power network line passes through new
On-load switch of registering one's residence is connected after type intelligence expense control switch and current sampling mutual inductor, the power end and voltage sampling port of electric energy meter are equal
It is attempted by the input terminal of novel intelligent expense control switch, the current sample of the sampled output connection electric energy meter of current sampling mutual inductor
End；The communication module that novel intelligent takes control switch connects communication module and the communication of electric energy meter by communication line；Novel intelligent takes
Headend equipment of the control switch as existing intelligent electric energy meter, the monitoring of realization synchronous measurement, the function for taking control separating brake and expense control combined floodgate
Energy.
This low pressure provided by the utility model take control Anti-current stealing meter, by it includes novel intelligent take control switch
Sample circuit (including builtin voltage mutual inductor, current transformer and corresponding circuit), all devices arrangement such as metering circuit
In the cabinet that one is independently sealed up, and present apparatus novel intelligent expense control switch is connect and is led to intelligent electric meter by communication line
Letter.Expense control function is lost due to easy destroyed between existing electric energy meter and breaker of registering one's residence, the present apparatus provides
The intelligence of additional stabilization takes control function all the way.Due to all modules of the present apparatus be arranged in expense control switch in, without device outside
Leakage, so the reliability and anti-destructive of the present apparatus are higher；Simultaneously because the present apparatus and electric energy meter communication, while itself also has
Measure monitor function (carries out electrical energy measurement monitoring reference by controller module), therefore once finds that metering fault or user are stolen
When electric event, the remote data that electric energy meter can be sampled device passes main website server back, and being handled by system data can be fast
Speed discovery metering exception is simultaneously warned, and can prevent electric quantity loss in time.The present apparatus also can control the disconnection of on/off switch module simultaneously, from
And it realizes the expense control power-off of two-stage redundancy formula and powers on；Simultaneously as all modules of the present apparatus concentrate in together, for broken
For bad person, the thief-proof metering cabinet sealed up has certain deterrent, can further increase the anti-destructive of the present apparatus.
It is illustrated in figure 3 the functional block diagram of novel intelligent expense control switch in the utility model: provided by the utility model
This novel intelligent takes control switch, including power module, controller module, voltage sample module, current sampling module, clock mould
Block, on/off switch module, on/off switch control module, infrared sending/receiving module, display module, memory module and communication module；Institute
There is module to connect with controller module, on/off switch module is connect with on/off switch control module；Power module gives the novel intelligence
Control switch power supply can be taken；The power supply that voltage sample module is used to take input novel intelligent control switch carries out voltage signal sampling simultaneously
Upload controller module；Current sampling module is used to carry out current signal sampling simultaneously to the power supply that input novel intelligent takes control switch
Upload controller module；Clock module is used to provide standard clock signal to controller module；Communication module is for described novel
Intelligence takes control switch and PERCOM peripheral communication；Controller module is used to receive external data information by communication module, and according to reception
Voltage sampling signal and current sampling signal export combined floodgate or sub-gate signal give on/off switch control module, on/off switch control module
For driving on/off switch servo motor to act, realize that the power supply that control switchs close a floodgate or separating brake is grasped to taking by novel intelligent
Make；Infrared sending/receiving module takes control switch for novel intelligent and carries out data communication with outside by way of infrared communication；
Display module is used to show the working condition of the novel intelligent expense control switch；Memory module is for storing the novel intelligent expense
Control the data of switch.
It is illustrated in figure 4 the circuit theory schematic diagram of the power module of the novel intelligent expense control switch of the utility model: electricity
Source module is broadly divided into the external power supply of figure middle and upper part and the power supply of figure middle and lower part；After external power supply Vcurr access, directly
Unidirectional protection and out-put supply signal Vdsjn and Vsys are carried out by protection diode Q14 and Q15；Meanwhile external power supply passes through
The voltage follower control switch pipe Q10's being made of amplifier LMV324DR cut-offs；Meanwhile sample circuit R63 and R64 are to power supply
Signal Vcurr is sampled, and sampled signal Net.sCurrPwr is input to controller module；Meanwhile power supply signal Vsys
After being filtered by capacitor C1 and C2, then the voltage regulator circuit by being made of voltage stabilizing chip LM317M exports stable 5.8V power supply letter
Number, then filtered by capacitor C3 and C4, then exports externally and internally stable power supply signal supply.
The circuit theory for being illustrated in figure 5 the module of voltage sample all the way of the novel intelligent expense control switch of the utility model is shown
Be intended to: voltage sample module shares circuit described in 4 road Fig. 5, is respectively used to sampling A phase, B phase, C phase and neutral voltage letter
Number；Voltage sample module includes voltage sensor and filter circuit, and wherein voltage sensor is preferably voltage transformer (PT)；A
After the sampled signal JP1.ADCVoltA of phase voltage mutual inductor output is by RC filter circuit R88 and C27 filtering, sampling letter is obtained
Number Net.ADCVoltA is simultaneously input to controller module；Similar, B phase, C phase and neutral voltage signal also use same circuit
Corresponding sampled signal Net.ADCVoltB, Net.ADCVoltC and Net.ADCVoltE are obtained, and is input to controller mould
Block.
As Fig. 6 show the circuit theory signal of the current sampling module of the novel intelligent expense control switch of the utility model
Figure: current sampling module includes current sensor and current sampling circuit；Current sensor is preferably current transformer (CT)；With
For A phase current, the signal of A phase current mutual inductor output passes through B1(model MB6S) rectifier bridge rectified after, then lead to
Cross RC filter circuit (R46 and C30) filtering, then the voltage follower by being made of amplifier LMV324DR carry out voltage follow and
Isolation, is then filtered again by RC filter circuit R49 and C23, then obtains final A phase current sampling signal
Net.ADCCurrA is simultaneously input to controller module；Similar, B phase and C phase current are sampled also by identical circuit, and
B phase current sampling signal Net.ADCCurrB and C phase current sampling signal Net.ADCCurrC is finally obtained, and is input to control
Device module；Meanwhile leakage current transformer output leakage current sampled signal JP3.ADCLeak, it is protected by diode D8 and D9, then
Filtered by RC filter circuit R1 and C0, then again by by indicating IC6C in LMV324DR(figure) voltage follower that constitutes into
Capable voltage follow and isolation, then again by by indicating IC6D in amplifier LMV324DR(figure) amplifying circuit that constitutes put
Greatly, it is finally filtered again by RC filter circuit R45 and C22, obtains final leakage current sampled signal Net.ADCLeak and be input to
Controller module.
The circuit theory for being illustrated in figure 7 the infrared sending/receiving module of the novel intelligent expense control switch of the utility model is shown
Be intended to: infrared sending/receiving module is the module being made of the infrared chip of model HS0038B；The hair of controller module output
The number of delivering letters IR_TxD passes through the ground level of resistance Rx2 connecting triode Qx1, and the collector of Qx1 passes through resistance Rx3 connection infraluminescence
The ground level of pipe TASL6200, and the collector of connecting triode Qx2 simultaneously, Qx2 pass through resistance Rx4 connection controller module, Qx2
Emitter ground connection；The emitter of Qx1 passes through pull-up resistor Rx6 connection power supply signal VDD；When controller module exports IR_CLK
Clock signal simultaneously controls opening and turning off for triode Qx2, so that the conducting and shutdown of infraluminescence pipe TASL6200 is controlled, thus
The signal exported is needed externally to send by infrared hair controller module；Meanwhile the external infrared signal sent passes through reception
Chip IC x1(model HS0038B) it is received, and control is input to from 1 foot of chip by obtaining data after the parsing of chip
Device module processed.
It is illustrated in figure 8 the circuit theory schematic diagram of the communication module of the novel intelligent expense control switch of the utility model: logical
Believe that module is the module being made of the chip of model SN65LBC184DR；485 communications pins output signals of controller module
Net.485Rxd and Net.485Txd；Wherein, 8 feet of communication chip connect power supply signal V485；7 feet of chip and the connection of 6 feet
External 485 communication lines (485_B and 485_A)；485 external simultaneously communication lines also by respective TVS pipe (TVS2 and
TVS3 ground protection) is carried out；5 feet and 4 feet of chip are directly grounded；2 feet and 3 feet of chip pass through resistance R81 and R82 and connect
Ground, while 3 foot of secondary side of optocoupler V2 directly passes through resistance R82 and is grounded, the 4 foot connection communication power supply signals of V2, while the foot of V2
Controller module power supply signal is connected, 2 feet of V2 are then used as the signal transmission pin of device to pass through resistance R79 connection controller mould
The Net.485Txd signal of block；1 foot of communication chip then connects 2 feet of optocoupler V1, and 1 foot of V1 connects 485 power supply signals；V1's
3 feet are directly grounded, and the Net.485Rxd signal that 4 feet of V1 are then used as the signal of device to receive pin connection controller module draws
Foot.
It is illustrated in figure 9 the circuit theory schematic diagram of the controller module of the novel intelligent expense control switch of the utility model:
Controller module is the module being made of the controller chip of model STM32F030R8T6；1 foot of chip is directly grounded；Core
5 feet of piece are Power Supply Monitoring pin and connect power module；16 and 17 pins of chip are then 485 communications pins and connection communication
Module (see figure 8)；20 feet of chip are the leakage current signal input pin (see figure 6) of current sampling module；21 ~ 23 feet of chip
For the voltage sampling signal input pin (see figure 5) of voltage sample module output；24 ~ 26 feet of chip are then current sampling module
Three-phase current sampled signal input pin (see figure 6)；27 feet of chip are the neutral voltage sampled signal of voltage sample module
Input pin；37 ~ 40 feet of chip can connect corresponding indicator light, be used to indicate the working condition of chip；Chip 29,
30,33 ~ 36 feet then can connect corresponding key, as input signal；51 ~ 53 feet of chip then connect memory module (see figure
10)；54 and 55 feet of chip then connect clock module and obtain reference clock signal (see Figure 11)；58 and 59 feet of chip are then
485 communications pins and connection communication module (see figure 8).
It is as shown in Figure 10 the circuit theory schematic diagram of the memory module of the novel intelligent expense control switch of the utility model: deposits
Storing up module is the module being made of the storage chip of model 24LC256-I/SN；1 ~ 4 foot of chip is directly grounded；Chip
5 ~ 6 feet connect controller module as signal pins, while 7 feet of chip also connect controller module as control signal；Together
When, 5 ~ 7 feet of chip are by respective pull-up resistor R2 ~ R4 connection power supply signal, for guaranteeing the level signal of pin；Chip
8 feet then connect power supply signal and take electricity.
Take the circuit theory schematic diagram of the clock module of control switch for the novel intelligent of the utility model as shown in figure 11: when
Clock module is the module being made of the clock chip of model PCF8563T；Crystal oscillator X1 is connected between 1 foot and 2 feet of chip and is obtained
Take crystal oscillation signal；4 feet of chip are directly grounded；5 feet and 6 feet of chip are then used as Clock Signal pin to connect controller module；
7 feet of chip connect CLK_INT signal network, keep pin electric simultaneously also by pull-up resistor R25 connection power supply signal
It is flat；8 feet of chip connect power supply signal VDD, are grounded and filter simultaneously also by filter capacitor C39, while in order to guarantee that power supply can
By property, 8 feet guarantee the stability and accuracy of clock signal also by protection diode D2 connection battery BAT, user.
Claims (10)
1. a kind of novel intelligent takes control switch, it is characterised in that including power module, controller module, voltage sample module, electricity
Flow sampling module, clock module, on/off switch module, on/off switch control module and communication module；Voltage sample module, current sample
Module, clock module, on/off switch control module and communication module are connect with controller module, on/off switch module and on/off switch control
The connection of molding block；Power module takes control switch power supply to the intelligence；Voltage sample module is used to take control to input novel intelligent
The power supply of switch carries out voltage signal sampling and uploads controller module；Current sampling module is used to take control to input novel intelligent
The power supply of switch carries out current signal sampling and uploads controller module；When clock module is used to provide standard to controller module
Clock signal；Communication module takes control switch and PERCOM peripheral communication for described；Controller module is used to receive by communication module external
Data information, and based on the received voltage sampling signal and current sampling signal export combined floodgate or sub-gate signal give on/off switch control
Module, on/off switch control module for driving on/off switch module action and external motor driven to act, realize to expense control switch into
Row closes a floodgate or sub-switching operation.
2. novel intelligent according to claim 1 takes control switch, it is characterised in that further include infrared sending/receiving module；It is red
Outer sending/receiving module is connect with controller module, for low pressure take control Anti-current stealing meter by way of infrared communication with
Outside carries out data communication.
3. novel intelligent according to claim 2 takes control switch, it is characterised in that the infrared sending/receiving module is
The module being made of the infrared chip of model HS0038B.
4. novel intelligent according to claim 1 takes control switch, it is characterised in that the novel intelligent takes control switch also
Including display module；Display module is connect with controller module, for showing the working condition of the novel intelligent expense control switch.
5. novel intelligent according to claim 1 takes control switch, it is characterised in that the novel intelligent takes control switch also
Including memory module；Memory module is connect with controller module, for storing the data of the novel intelligent expense control switch.
6. novel intelligent according to claim 5 takes control switch, it is characterised in that the memory module is by model
The module that the storage chip of 24LC256-I/SN is constituted.
7. novel intelligent described according to claim 1 ~ one of 5 takes control switch, it is characterised in that the communication module is served as reasons
The module that the chip of model SN65LBC184DR is constituted.
8. novel intelligent described according to claim 1 ~ one of 5 takes control switch, it is characterised in that the controller module is
The module being made of the controller chip of model STM32F030R8T6.
9. novel intelligent described according to claim 1 ~ one of 5 takes control switch, it is characterised in that the clock module is served as reasons
The module that the clock chip of model PCF8563T is constituted.
10. a kind of low pressure takes control Anti-current stealing meter, it is characterised in that the low pressure expense control Anti-current stealing meter is mounted on
In independent cabinet, including electric energy meter, current sampling mutual inductor and on-load switch of registering one's residence, further comprise one of claim 1 ~ 9
The novel intelligent takes control switch；Power network line is registered one's residence by connecting after novel intelligent expense control switch and current sampling mutual inductor
On-load switch, the power end and voltage sampling port of electric energy meter are attempted by the input terminal of novel intelligent expense control switch, current sample
The current sampling port of the sampled output connection electric energy meter of mutual inductor；The communication module of novel intelligent expense control switch passes through communication line
Connect the communication module of electric energy meter and communication；Novel intelligent takes headend equipment of the control switch as existing intelligent electric energy meter, real
Existing synchronous measurement monitoring takes control separating brake and takes the function that control is closed a floodgate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920122193.6U CN209343161U (en) | 2019-01-24 | 2019-01-24 | Novel intelligent takes control switch and its low pressure expense control Anti-current stealing meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920122193.6U CN209343161U (en) | 2019-01-24 | 2019-01-24 | Novel intelligent takes control switch and its low pressure expense control Anti-current stealing meter |
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| CN209343161U true CN209343161U (en) | 2019-09-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110635455A (en) * | 2019-10-25 | 2019-12-31 | 福建省泉州市培元中学 | Safety protection device for leakage protection and power connection protection |
| CN111176160A (en) * | 2019-12-26 | 2020-05-19 | 国网山东省电力公司莱芜供电公司 | Remote low-voltage load intelligent control system |
| CN112886531A (en) * | 2021-02-07 | 2021-06-01 | 鄂尔多斯市嵘泰电力工程建设有限公司 | Controller for fee-controlled electric meter |
-
2019
- 2019-01-24 CN CN201920122193.6U patent/CN209343161U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110635455A (en) * | 2019-10-25 | 2019-12-31 | 福建省泉州市培元中学 | Safety protection device for leakage protection and power connection protection |
| CN111176160A (en) * | 2019-12-26 | 2020-05-19 | 国网山东省电力公司莱芜供电公司 | Remote low-voltage load intelligent control system |
| CN112886531A (en) * | 2021-02-07 | 2021-06-01 | 鄂尔多斯市嵘泰电力工程建设有限公司 | Controller for fee-controlled electric meter |
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| GR01 | Patent grant |