CN207799035U - Acquisition device of electric parameter - Google Patents
Acquisition device of electric parameter Download PDFInfo
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- CN207799035U CN207799035U CN201820116513.2U CN201820116513U CN207799035U CN 207799035 U CN207799035 U CN 207799035U CN 201820116513 U CN201820116513 U CN 201820116513U CN 207799035 U CN207799035 U CN 207799035U
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Abstract
The utility model discloses an acquisition device of electric parameter belongs to electrician's measurement technical field. The acquisition device includes: the measuring box comprises a three-phase intelligent electric meter, a controller and a second communication module. The utility model discloses a three-phase voltage measurement interface with three-phase smart electric meter carries out the electricity through the voltage test line respectively with target three-phase alternating current motor's three-phase power cord and is connected to carry out the back of being connected with three-phase current measurement interface electricity respectively with three current transformer, encircle on target three-phase alternating current motor's three-phase power cord respectively again. And then, the electric parameters of the target three-phase alternating current motor are tested through the three-phase intelligent electric meter and transmitted to the controller, the controller acquires the tested electric parameters, the tested electric parameters are transmitted to the first communication module through the wireless network based on the second communication module and then transmitted to the terminal equipment, the acquisition of the electric parameters of the target three-phase alternating current motor is realized, and the resource waste caused by the independent installation of the acquisition equipment is avoided.
Description
Technical field
The utility model is related to electrician measure technology area, more particularly to a kind of acquisition device of electric parameter.
Background technology
Three phase alternating current motor is widely used in the oil field systems such as oil recovery, water filling, oil transportation at present, in answering for three phase alternating current motor
With the electric parameter in the process, obtaining three phase alternating current motor, and then the energy consumption and operation characteristic of oil field system are analyzed based on electric parameter,
Important in inhibiting is optimized with the mode of production to oil field system.
It in the related technology, can be by being fixedly mounted on three in the long-term electric parameter for obtaining three phase alternating current motor in real time
Acquisition equipment on phase alternating current generator is obtained.When obtaining the electric parameter of three phase alternating current motor temporarily, generally requiring will just
Formula instrument is taken on three phase alternating current motor, and then the reading of portable apparatus is read to obtain by operating personnel scene
It takes.
However, in the long-term electric parameter of acquisition in real time, due to needing the three phase alternating current motor for obtaining electric parameter more, cause
It is long that the installation investment of electric parameter acquisition equipment is greatly, the electric parameter of three phase alternating current motor obtains the period.When obtaining electric parameter temporarily,
Due to needing operating personnel scene to read the electric parameter of three phase alternating current motor, the workload of operating personnel is increased.
Utility model content
In order to reduce three phase alternating current motor electric parameter procurement cost, improve the acquisition efficiency of electric parameter, reduce simultaneously
The workload of operating personnel, the utility model provide a kind of electric parameter acquisition device.The technical solution is as follows：
The utility model provides a kind of acquisition device of electric parameter, and the acquisition device includes measuring case, three electric currents
Mutual inductor and first communication module, the measurement case includes three-phase intelligent ammeter, controller and second communication module；
The three-phase voltage measurement interface of the three-phase intelligent ammeter by voltage tester line respectively with target three-phase alternating current
The three-phase power line of machine is electrically connected, the three-phase current of the three-phase intelligent ammeter measure interface respectively with three electric currents
Mutual inductor is electrically connected, and three current transformers are looped around the three-phase power line of the target three phase alternating current motor respectively
On, the target three phase alternating current motor refers to the motor that pending electric parameter obtains；
The output end of the three-phase intelligent ammeter and the input terminal of the controller are electrically connected, the controller it is defeated
Outlet is electrically connected with the second communication module, and the controller is used to obtain the electricity ginseng that the three-phase intelligent ammeter measures
Amount, and it is transmitted to the second communication module；
The second communication module and the first communication module carry out wireless communication, the first communication module with
Terminal device carries out wired network communication or wireless communication, and the first communication module is for the electric parameter to be transferred to
The terminal device.
Optionally, the neutral voltage measurement interface of the three-phase intelligent ammeter passes through neutral voltage p-wire and the target
The zero curve of three phase alternating current motor is electrically connected.
Optionally, the measurement case further includes DC power source adapter；
The input terminal of the DC power source adapter measures interface with any phase voltage of the three-phase intelligent ammeter respectively
Measure interface electrical connection with neutral voltage, the output end of the DC power source adapter respectively with the controller and described second
Communication module is electrically connected.
Optionally, the first communication module and the second communication module are GPRS (General Packet
Radio Service, general packet radio service technology) communication module, and the first communication module is provided with first antenna,
The second communication module is provided with the second antenna.
Optionally, three current transformers are split core type current transformer.
Optionally, the measurement case further includes shell and operation panel, the three-phase intelligent ammeter, the controller and institute
It states second communication module and is located at the shell and the operation panel and be formed by inner cavity.
Optionally, Ethernet interface, USB (Universal Serial Bus, general serial are provided on the controller
Bus) interface and data storage card；
The Ethernet interface carries out wired network communication for the controller and the terminal device, and the USB connects
Mouth obtains the electric parameter of the data storage card storage for external equipment.
Optionally, controller window, ethernet connector, USB connector, voltage connection are provided on the operation panel
Device and current connector；
The ethernet connector is connect with the Ethernet interface, and the USB connector is connect with the USB interface,
The input terminal of the voltage connector is electrically connected with the voltage tester line respectively, the output end of the voltage connector with
The three-phase voltage measurement interface of the three-phase intelligent ammeter is electrically connected, the input terminal of the current connector with described three
One end of current transformer is electrically connected, the three-phase current of the output end of the current connector and the three-phase intelligent ammeter
Interface is measured to be electrically connected.
Optionally, it is communicated using RS485 or RS232 agreements between the three-phase intelligent ammeter and the controller,
It is communicated using RS485 or RS232 agreements between the controller and the second communication module.
The advantageous effect of technical solution provided by the utility model is：The utility model is by by the three of three-phase intelligent ammeter
Phase voltage measures interface and is electrically connected respectively by voltage tester line and the three-phase power line of target three phase alternating current motor, by three
The three-phase current of phase intelligent electric meter measures interface and is electrically connected respectively with three current transformers, and by three current transformers
It is looped around respectively on the three-phase power line of target three phase alternating current motor, to be realized to target three-phase alternating current by three-phase intelligent ammeter
The measurement of the electric parameter of motor.Later, controller obtains the electric parameter that three-phase intelligent ammeter measures, and the electric parameter of acquisition is passed
Transport to second communication module.After the electric parameter for getting the target three phase alternating current motor of controller transmission in second communication module,
Based on the wireless communication between second communication module and first communication module, target three is obtained by first communication module and is intersected
The electric parameter of galvanic electricity machine, and communicated by the wired or wireless network between terminal device and realize terminal device to target three-phase
The acquisition of the electric parameter of alternating current generator avoids operating personnel from obtaining electric parameter and increased workload in measure field, drops simultaneously
The low cost of investment of the electric parameter of target three phase alternating current motor.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the acquisition device for the first electric parameter that the utility model embodiment provides；
Fig. 2 is the structural schematic diagram of the acquisition device for second of electric parameter that the utility model embodiment provides；
Fig. 3 is the structural schematic diagram of the acquisition device for the third electric parameter that the utility model embodiment provides；
Fig. 4 is the structural schematic diagram of the acquisition device for the 4th kind of electric parameter that the utility model embodiment provides.
Reference numeral：
1：Measure case；11：Three-phase intelligent ammeter；12：Controller；13：Second communication module；14：Shell；15：Operating surface
Plate；16：DC power source adapter；2：Current transformer；3：First communication module；31：First antenna；4：Voltage tester line；5：
Terminal device；
121：Ethernet interface；122：USB interface；123：Data storage card；131：Second antenna.
Specific implementation mode
It is new to this practicality below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
Fig. 1 is a kind of acquisition device for electric parameter that the utility model embodiment provides.Referring to Fig. 1, the acquisition device packet
It includes and measures 1, three current transformer 2 of case and first communication module 3, it includes three-phase intelligent ammeter 11,12 and of controller to measure case 1
Second communication module 13.The three-phase voltage measurement interface of three-phase intelligent ammeter 11 by voltage tester line 4 respectively with target three-phase
The three-phase power line of alternating current generator is electrically connected, the three-phase current of three-phase intelligent ammeter 11 measure interface respectively with three electric currents
Mutual inductor 2 is electrically connected, and three current transformers 2 are looped around respectively on the three-phase power line of target three phase alternating current motor, mesh
Mark three phase alternating current motor refers to the motor that pending electric parameter obtains.The output end of three-phase intelligent ammeter 11 is defeated with controller 12
Enter end to be electrically connected, output end and the second communication module 13 of controller 12 are electrically connected, and controller 12 is for obtaining three
The electric parameter that phase intelligent electric meter 11 measures, and it is transmitted to second communication module 13.Second communication module 13 and first communication module 3
Progress wireless communication, first communication module 3 and the progress wired network communication of terminal device 5 or wireless communication, first
Communication module 3 is used to electric parameter being transferred to terminal device 5.
When needing to measure the electric parameter of target three phase alternating current motor, the three-phase voltage measurement of three-phase intelligent ammeter 11 is connect
Three-phase power line of the mouth by voltage tester line 4 respectively with target three phase alternating current motor is electrically connected, and three-phase current is measured
Interface is electrically connected with three current transformers 2 respectively, and three current transformers 2 are looped around target three phase alternating current motor respectively
Three-phase power line on.Three-phase intelligent ammeter 11 distinguishes test target three-phase alternating current by voltage tester line 4 and current transformer 2
The electric parameter of electric parameter on every phase power cord of motor, measurement may include voltage, electric current, frequency, electric energy, power factor
Deng.After being measured by three-phase intelligent ammeter 11, the electric parameter of measurement and corresponding measurement time real-time Transmission are extremely controlled
Device 12, controller 12 can be realized by the wireless communication between second communication module 13 and first communication module 3 and be measured
The transmission of data.After first communication module 3 receives measurement data, cable network and wireless network transmissions to end can be passed through
End equipment 5, to realize target three phase alternating current motor electric parameter acquisition, avoid and target three phase alternating current motor individually pacified
The waste of resource caused by electric parameter obtains equipment is filled, while reducing the workload of operating personnel.
Wherein, three-phase intelligent ammeter 11 can be based on voltage tester line 4 by the connection type of three-phase three-wire system and measure target
Line voltage in the arbitrary two-phase power supply line of three phase alternating current motor, it is of course also possible to measure mesh by the connection type of three-phase four-wire system
The phase voltage on any phase power cord on three phase alternating current motor is marked, that is to say, the neutral voltage of three-phase intelligent ammeter 11 is measured
Interface is electrically connected by neutral voltage p-wire with the zero curve of target three phase alternating current motor, to pass through any phase power cord and zero curve
Measure the phase voltage of any phase power cord on target three phase alternating current motor.
Wherein, target three phase alternating current motor is being measured per the voltage and current on phase power cord by three-phase intelligent ammeter 11
When, for the voltage on every phase power cord, on every phase power cord and one end of voltage tester line 4 can be connect, and voltage is surveyed
Try the other end measurement interface connection per phase voltage corresponding on three-phase intelligent ammeter 11 of line 4；For on every phase power cord
Electric current, for the ease of being measured to the electric current on every phase power cord, three current transformers 2 all can be pincerlike Current Mutual Inductance
Device is realized at this point it is possible to which directly current transformer 2 is looped around on every phase power cord of target three phase alternating current motor to every phase
The measurement of electric current on power cord.
After the electric parameter that controller 12 measures three-phase intelligent ammeter 11 obtains, controller 12 can be with tactile
The controller for touching screen, in order to which operating personnel can be configured controller 12 by touch screen, and by the target of acquisition three
The electric parameter of phase alternating current generator is transmitted to second communication module 13, at the same time it can also obtain target three-phase by touch screen scene
The electric parameter of alternating current generator.Wherein, may be used between three-phase intelligent ammeter 11 and controller 12 RS485 or RS232 agreements into
Row communication, may be used RS485 or RS232 agreements and is communicated between controller 12 and second communication module 13.
After the electric parameter for receiving the target three phase alternating current motor of the transmission of controller 12 in second communication module 13, in order to just
Wireless communication between first communication module 3 and second communication module 13, referring to Fig. 2, first communication module 3 and second
Communication module 13 all can be GPRS communication modules, and first communication module 3 is provided with first antenna 31, second communication module 13
It is provided with the second antenna 131.Second communication module 13 is after the electrical parameter for receiving the transmission of controller 12 by the second antenna 131
The electric parameter of target three phase alternating current motor is sent, and the first antenna 31 by being arranged on first communication module 3 receives target three-phase
The electric parameter of alternating current generator.
When first communication module 3 sends the electric parameter of target three phase alternating current motor to terminal device 5, first communication module
The transmission that can carry out electric parameter between 3 and terminal device 5 by wireless network, it is of course also possible to be carried out by cable network
The transmission of electric parameter.When carrying out electric parameter transmission by cable network, can distinguish on first communication module and terminal device 5
Corresponding Ethernet interface is set, to realize the transmission of the electric parameter of target three phase alternating current motor.Certainly, first communication module and
Corresponding RS232 serial ports can also be respectively set on terminal device 5, to realize that the electric parameter of target three phase alternating current motor passes through
RS232 agreements are transmitted.The electricity ginseng of the target three phase alternating current motor of the transmission of first communication module 3 is received in terminal device 5
After amount, terminal device 5 can also show the electric parameter of acquisition by display, in order to the monitoring of operating personnel.
It is carried out wireless communication between second communication module 13 and first communication module 3, to realize that measure case 1 sets with terminal
Between standby 5 when the transmission of the electric parameter of target three phase alternating current motor, in order to avoid second communication module 13 or first communication module 3
Break down, cause target three phase alternating current motor electric parameter obtain failure, referring to Fig. 2, on controller 12 setting can have with
Too network interface 121, usb 1 22 and data storage card 123.Wherein, the Ethernet interface 121 on controller 12 is for controlling
Device 12 and terminal device 5 carry out wired network communication, to realize the acquisition of the electric parameter of target three phase alternating current motor；Controller 12
The usb 1 22 of upper setting obtains the electric parameter that data storage card 123 stores for external equipment.
Wherein, when second communication module 13 or first communication module 3 break down, operating personnel can pass through controller
The Ethernet interface 121 being arranged on 12 realizes the electric parameter of target three phase alternating current motor between controller 12 and terminal device 5
Transmission, or can be configured by controller 12, the target three phase alternating current motor that will be obtained from three-phase intelligent ammeter 11
Electric parameter store to data storage card 123, and then the usb 1 22 by being arranged on controller 12 realize external equipment pair
The acquisition of the electric parameter stored on data storage card.
When operating personnel measure the electric parameter of target three phase alternating current motor based on measurement case 1, for the ease of behaviour
The safety operation for making personnel, referring to Fig. 3, it can also includes shell 14 and operation panel 15 to measure case 1, three-phase intelligent ammeter 11,
Controller 12 and second communication module 13 are located at shell 14 and are formed by inner cavity, current transformer 2 and voltage with operation panel 15
P-wire 4 is located at shell 14 and is formed by containment portion with operation panel 15.
When it includes operation panel 15 to measure case 1, for the ease of the operation of operating personnel, three-phase intelligent ammeter 11 and target
The transmission of the electric parameter of electrical connection and target three phase alternating current motor between three phase alternating current motor may be used also on operation panel 15
To be provided with controller window, ethernet connector, USB connector, voltage connector and current connector, ethernet connector
It is connect with Ethernet interface 121, USB connector is connect with usb 1 22, and the input terminal of voltage connector is surveyed with voltage respectively
Examination line 4 is electrically connected, and the output end of voltage connector is electrically connected with the three-phase voltage measurement interface of three-phase intelligent ammeter 11
It connects, the input terminal of current connector and one end of three current transformers 2 are electrically connected, the output end of current connector and three
The three-phase current of phase intelligent electric meter 11 measures interface and is electrically connected.
Wherein, controller window is used to be arranged the control panel of controller 12, in order to which operating personnel pass through controller window
The existing operation to controller 12 of cause for gossip.Wherein, which can be operated by touch screen, it is of course also possible to pass through
Keyboard is operated, and the utility model embodiment does not limit this.
When being measured to the electric parameter of target three phase alternating current motor by measuring case 1, operation panel 15 can be based on
The voltage connector of upper setting is in parallel with every phase power cord progress of target three phase alternating current motor by voltage tester line 4 respectively,
Target three phase alternating current motor can be looped around by current transformer 2 respectively based on the current connector being arranged on operation panel 15
Every phase power cord on, realize the measurement to the electric parameter of target three phase alternating current motor.Meanwhile in second communication module 13 or the
When one communication module 3 breaks down, operating personnel can realize control by the ethernet connector being arranged on operation panel 15
The transmission of electric parameter between device 12 and terminal device 5, or can be realized by the USB connector being arranged on operation panel 15 outer
Acquisition of portion's equipment to the electric parameter stored on data storage card 123.Certainly, it is stored in the electric parameter of target three phase alternating current motor
After on to data storage card 123, the electric parameter of target three phase alternating current motor can also be obtained directly from data storage card 123,
The utility model embodiment is not construed as limiting this.
Wherein, the voltage connector and current connector being arranged on operation panel 15 are all made of anti-mis-insertion design, to mesh
Banana head may be used in voltage on every phase power cord of mark three phase alternating current motor connection type when measuring is electrically connected
It connects.It is of course also possible to use copper lug is attached, as long as reliable convenient connection may be implemented, the utility model is real
Example is applied not limit this.2 are may be used when the electric current on every phase power cord to target three phase alternating current motor measures
The connection type of needle aviation plug is electrically connected.
After being measured to the electric parameter of target three phase alternating current motor by three-phase intelligent ammeter 11, in order to ensure to control
Working long hours for device 12 and second communication module 13, avoids because the power supply module of controller 12 and second communication module 13 is because of electricity
Pond electricity is low to lead to electric parameter Transmission, and referring to Fig. 4, which can also include DC power source adapter 16, direct current
Interface is measured with any phase voltage of three-phase intelligent ammeter 11 respectively for the input terminal of source adapter 16 and neutral voltage measures interface
Electrical connection, the output end of DC power source adapter 16 is electrically connected with controller 12 and second communication module 13 respectively, with by straight
Device 12 and second communication module 13 provide DC power supply to galvanic electricity source adapter 16 in order to control.
In the process that three-phase intelligent ammeter 11 measures the electric parameter of target three phase alternating current motor, due to DC power supply
The input terminal of adapter 16 measures interface with any phase voltage of three-phase intelligent ammeter 11 respectively and neutral voltage measures interface electricity
Connection, that is to say, the input terminal of DC power source adapter 16 and any phase power cord and the zero curve electricity of target three phase alternating current motor
Connection, provides AC power, and by straight by DC power source adapter 16 of the supply line by target three phase alternating current motor
AC power is converted into DC power supply by galvanic electricity source adapter 16, and device 12 and second communication module 13 provide DC power supply in order to control.
During three-phase intelligent ammeter measures electric parameter, control is continuously by the supply line of target three phase alternating current motor
Device 12 and second communication module processed provide power supply, to avoid in the transmission process of electric parameter, because of power supply module battery capacity
It is low lead to Transmission and caused by influence.
In the utility model embodiment, the utility model is led to respectively by the voltage connector being arranged on operation panel
Overvoltage p-wire and the three-phase power line of target three phase alternating current motor are electrically connected, and the electric current being arranged on operation panel is connected
It connects device to be electrically connected with three current transformers respectively, and three current transformers is looped around target three-phase alternating current respectively
On the three-phase power line of machine, pass through measurement of the three-phase intelligent ammeter to the electric parameter of target three phase alternating current motor to realize.Later,
Controller obtains the electricity ginseng that three-phase intelligent ammeter measures based on RS485 the or RS232 communication ports between three-phase intelligent ammeter
Amount, and the electric parameter of acquisition is transmitted to by the second communication based on RS485 the or RS232 communication ports between second communication module
Module.After the electric parameter for getting the target three phase alternating current motor of controller transmission in second communication module, it is based on the second antenna
Wireless communication between first antenna realizes the electric parameter of the target three phase alternating current motor between first communication module
Transmission, and communicated by the wired or wireless network between terminal device after first communication module receives electric parameter real
Existing acquisition of the terminal device to the electric parameter of target three phase alternating current motor, avoid operating personnel obtain electric parameter in measure field and
Increased workload, while reducing the cost of investment of the electric parameter of target three phase alternating current motor.In addition, suitable by DC power supply
Device and second communication module provide working power to orchestration in order to control, can improve the working time for measuring case, avoid controller
The electricity ginseng of target three phase alternating current motor caused by being powered off suddenly because of the battery capacity of power supply module deficiency with second communication module
Measure the failure obtained.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (9)
1. a kind of acquisition device of electric parameter, which is characterized in that the acquisition device include measure case, three current transformers and
First communication module, the measurement case includes three-phase intelligent ammeter, controller and second communication module；
The three-phase voltage measurement interface of the three-phase intelligent ammeter by voltage tester line respectively with target three phase alternating current motor
Three-phase power line is electrically connected, the three-phase current of the three-phase intelligent ammeter measure interface respectively with three Current Mutual Inductances
Device is electrically connected, and three current transformers are looped around respectively on the three-phase power line of the target three phase alternating current motor,
The target three phase alternating current motor refers to the motor that pending electric parameter obtains；
The output end of the three-phase intelligent ammeter and the input terminal of the controller are electrically connected, the output end of the controller
It being electrically connected with the second communication module, the controller is used to obtain the electric parameter that the three-phase intelligent ammeter measures,
And it is transmitted to the second communication module；
The second communication module carries out wireless communication, the first communication module and terminal with the first communication module
Equipment carries out wired network communication or wireless communication, and the first communication module is used to the electric parameter being transferred to described
Terminal device.
2. acquisition device as described in claim 1, which is characterized in that the neutral voltage of the three-phase intelligent ammeter measures interface
It is electrically connected with the zero curve of the target three phase alternating current motor by neutral voltage p-wire.
3. acquisition device as described in claim 1, which is characterized in that the measurement case further includes DC power source adapter；
The input terminal of the DC power source adapter measures interface and zero with any phase voltage of the three-phase intelligent ammeter respectively
Line voltage measurement interface is electrically connected, and the output end of the DC power source adapter is communicated with the controller and described second respectively
Module is electrically connected.
4. acquisition device as described in claim 1, which is characterized in that the first communication module and the second communication module
It is general packet radio service technology GPRS communication modules, and the first communication module is provided with first antenna, described
Two communication modules are provided with the second antenna.
5. acquisition device as described in claim 1, which is characterized in that three current transformers are pincerlike Current Mutual Inductance
Device.
6. acquisition device as described in claim 1, which is characterized in that the measurement case further includes shell and operation panel, institute
It states three-phase intelligent ammeter, the controller and the second communication module and is located at the shell and be formed by with the operation panel
Inner cavity.
7. acquisition device as claimed in claim 6, which is characterized in that be provided with Ethernet interface, general on the controller
Serial bus USB interface and data storage card；
The Ethernet interface carries out wired network communication for the controller and the terminal device, and the USB interface is used
The electric parameter of the data storage card storage is obtained in external equipment.
8. acquisition device as claimed in claim 7, which is characterized in that be provided on the operation panel controller window, with
Too net connector, USB connector, voltage connector and current connector；
The ethernet connector is connect with the Ethernet interface, and the USB connector is connect with the USB interface, described
The input terminal of voltage connector is electrically connected with the voltage tester line respectively, the output end of the voltage connector with it is described
The three-phase voltage measurement interface of three-phase intelligent ammeter is electrically connected, the input terminal of the current connector and three electric currents
One end of mutual inductor is electrically connected, and the output end of the current connector and the three-phase current of the three-phase intelligent ammeter measure
Interface is electrically connected.
9. the acquisition device as described in claim 1-8 is any, which is characterized in that the three-phase intelligent ammeter and the controller
Between communicated using RS485 or RS232 agreements, between the controller and the second communication module using RS485 or
RS232 agreements are communicated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820116513.2U CN207799035U (en) | 2018-01-24 | 2018-01-24 | Acquisition device of electric parameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820116513.2U CN207799035U (en) | 2018-01-24 | 2018-01-24 | Acquisition device of electric parameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207799035U true CN207799035U (en) | 2018-08-31 |
Family
ID=63270216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820116513.2U Active CN207799035U (en) | 2018-01-24 | 2018-01-24 | Acquisition device of electric parameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207799035U (en) |
-
2018
- 2018-01-24 CN CN201820116513.2U patent/CN207799035U/en active Active
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