CN204945359U - A kind of three-phase electric energy meter on-site calibrator - Google Patents
A kind of three-phase electric energy meter on-site calibrator Download PDFInfo
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- CN204945359U CN204945359U CN201520468535.1U CN201520468535U CN204945359U CN 204945359 U CN204945359 U CN 204945359U CN 201520468535 U CN201520468535 U CN 201520468535U CN 204945359 U CN204945359 U CN 204945359U
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- circuit board
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- tester
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Abstract
The utility model relates to a kind of tester, disclose a kind of three-phase electric energy meter on-site calibrator, comprise shell, terminal panel, connection terminal, shell is fixedly embedded with liquid crystal touch screen and blue tooth wireless communication interface, shell internal fixtion is provided with analog circuit board and digital circuit board, analog circuit board is connected with connection terminal, and liquid crystal touch screen is located on digital circuit board.The utility model adopts the tester of band liquid crystal touch screen and blue tooth wireless communication interface, solve the complicacy of conventional keyboard operation, achieve all operations all to carry out on PDA, by analog circuit board and the digital circuit board of autonomous Design, substantially increase sampling precision and the measuring accuracy of tester, again by the terminal installing plate of the band row of patching pin, analog circuit board and digital circuit board are installed on tester there is higher stability, balance, and this tester structure is simple, operate light, work efficiency is higher, not only practicality but also be convenient to mounting or dismounting.
Description
Technical field
The utility model relates to a kind of tester, particularly relates to a kind of three-phase electric energy meter on-site calibrator.
Background technology
Mainly there is following shortcoming in existing three-phase electric energy meter on-site calibrator: one is the tester generally adopting band keyboard, keyboard comprises numerical key, letter key, special function keys etc., use keyboard operation in tester process more complicated, need operator to learn keyboard note book by heart and be not easy to operator's use, and tester area shared by keyboard area is comparatively large, makes tester size, weight all increases; Two is lack the function of carrying out wireless telecommunications with handheld terminal PDA, cannot realize all functions all at the enterprising line operate of PDA, greatly reduce the work efficiency of operator; Three is that the sampling precision of AD converter of design is lower, and due to tester small volume, the volume of inner current transformer is also corresponding less, sampling mode is all generally amplifier sampling, temperature sensitivity is large, causes from heat affecting large, greatly reduces the measuring accuracy of tester.
In addition, when entering from the terminal connections of terminal panel in tester and be connected in analog circuit board, lead-in wire between terminal panel and analog circuit board lacks the middle connector being with the space that goes between, and make one strand of lead-in wire entering tester disorderly and unsystematic, be easy to during installation occur that the situation of circuit wrong occurs, also be unfavorable for that usual repair and maintenance operates, even cause the situation such as circuit for generating short circuit in tester.
Summary of the invention
The shortcoming that the utility model mainly exists for three-phase electric energy meter on-site calibrator existing in prior art is: one is the tester generally adopting band keyboard, keyboard comprises numerical key, letter key, special function keys etc., use keyboard operation in tester process more complicated, need operator to learn keyboard note book by heart and be not easy to operator's use, and tester area shared by keyboard area is comparatively large, makes tester size, weight all increases; Two is lack the function of carrying out wireless telecommunications with handheld terminal PDA, cannot realize all functions all at the enterprising line operate of PDA, greatly reduce the work efficiency of operator; Three is that the sampling precision of AD converter of design is lower, due to tester small volume, the volume of inner current transformer is also corresponding less, sampling mode is all generally amplifier sampling, temperature sensitivity is large, cause from heat affecting large, greatly reduce the measuring accuracy of tester, provide a kind of with liquid crystal touch screen, autonomous Design analog circuit board and digital circuit board and have wireless communication function make sampling precision and measuring accuracy is higher, operate become lighter, three-phase electric energy meter on-site calibrator that work efficiency is higher.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
A kind of three-phase electric energy meter on-site calibrator, comprise shell, expose the terminal panel of housing top end end face, the connection terminal be located on terminal panel, the front of shell and side are fixedly embedded with liquid crystal touch screen and blue tooth wireless communication interface respectively, shell shell internal fixtion is provided with the analog circuit board and digital circuit board that are connected by circuit, be connected by lead wire circuit between analog circuit board with connection terminal, liquid crystal touch screen is located on digital circuit board.
As preferably, liquid crystal touch screen is provided with status display area, vector plot district, error checking district, electrical parameter district, function key area, status display area, vector plot district, error checking district, electrical parameter district, function key area lays respectively at the top of touch-screen, left side, middle, bottom, right side, status display area is for showing current optimum configurations state, system time, bluetooth state, battery electric quantity state, optimum configurations state comprises ammeter type, output frequency, input current, instrument temperature, the vector plot of electric current and voltage vector mutual relationship when vector plot district is used for display measurement and wiring differentiate result, error checking district is for showing master meter error and the subtabulation error of Watt-hour meter's field test, electrical parameter district is for showing electrical parameter and variable, function key area is provided with six function keys be arranged above and below, six function keys are respectively waveform display key, frequency analysis key, no-load voltage ratio measures key, data preserve key, data query key, optimum configurations key.
As preferably, terminal installing plate is provided with in shell, terminal installing plate is between terminal panel and analog circuit board, and terminal installing plate is fixedly connected with by the row's of patching pin with between analog circuit board, is fixedly connected with between terminal installing plate terminal panel by screw rod with the combination of nut.
Circuit connecting wire one end is connected on connection terminal, and the circuit connecting wire other end penetrates in tester from connection terminal, and circuit connecting wire is connected in analog circuit board through the guiding of terminal installing plate, and circuit connecting wire is bound in the lead-in wire space of the row's of patching pin formation.
Connection terminal comprises a pulse terminal, three split-core type meter terminals, four voltage terminals, six current terminals, each connection terminal to be penetrated in tester from connection terminal interface by circuit connecting wire and forms a branch of bundle wiring harness, a branch of bundle wiring harness is through lead-in wire spatial joins in analog circuit board, and a branch of bundle wiring harness is limited to be strapped in lead-in wire space.
As preferably, analog circuit board and digital circuit board are for be arrangeding in parallel, analog circuit board is provided with current transformer, lithium battery, Switching Power Supply, in current transformer, lithium battery, the Switching Power Supply sandwiched space all between analog circuit board and digital circuit board, fan is fixed with between analog circuit board and digital circuit board, fan is positioned at the bottom of shell shell, and digital circuit board is provided with the industrial control board as Implementation of Embedded System man-machine interface.
As preferably, the side of shell is also fixedly embedded with USB interface, 485 communication interfaces, AccessPort mouth.
As preferably, shell comprises the protecgulum being located at front, the bonnet being located at the back side, and protecgulum is fixedly fastened on bonnet, and liquid crystal touch screen is fixedly embedded on protecgulum, protecgulum is also provided with power switch, bottom protecgulum and bonnet, is equipped with the ventilation fan hole for heat dissipation ventilation.
As preferably, protecgulum and bonnet are equipped with draw-in groove, draw-in groove is arranged with rear lid support, soft carry hand, soft carry hand is stuck between protecgulum and bonnet.When the hand-held tester work of operator, rear lid support and soft carry hand can be close in tester case surface.After being used to complete, can by bonnet stent open, soft carry hand makes operator easily carry tester.
The utility model is owing to have employed above technical scheme, there is significant technique effect: the tester adopting band liquid crystal touch screen and blue tooth wireless communication interface, solve the complicacy of conventional keyboard operation, achieve all operations all to carry out on PDA, by analog circuit board and the digital circuit board of autonomous Design, substantially increase sampling precision and the measuring accuracy of tester, again by the terminal installing plate of the band row of patching pin, analog circuit board and digital circuit board are installed on tester there is higher stability, balance, and this tester structure is simple, operate light, work efficiency is higher, not only practicality but also be convenient to mounting or dismounting.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model three-phase electric energy meter on-site calibrator embodiment.
Fig. 2 is the side-looking structural representation of Fig. 1.
Fig. 3 is the structural representation that the utility model removes outer casing back sub-panel, terminal installing plate, analog circuit board assembling embodiment.
Fig. 4 is the structural representation that the utility model removes analog circuit board in outer casing back sub-panel and tester, digital circuit board, terminal installing plate assemble embodiment.
The toponym that in accompanying drawing, each number designation refers to is as follows: 1-function key area, 2-error checking district, 3-status display area, 4-liquid crystal touch screen, 5-electrical parameter district, 6-vector plot district, 7-protecgulum, 8-bonnet, 9-draw-in groove, lid support after 10-, the soft carry hand of 11-, 12-ventilation fan hole, 13-power switch, 14-optimum configurations key, 15-data query key, 16-data preserve key, 17-no-load voltage ratio measures key, 18-frequency analysis key, 19-waveform display key, 20-connection terminal, 21-terminal panel, 22-terminal installing plate, 23-digital circuit board, 24-USB interface, 25-485 communication interface, 26-blue tooth wireless communication interface, 27-AccessPort mouth, 28-analog circuit board, 29-screw rod, 30-nut, 31-patches row's pin, 32-industrial control board, 33-current transformer, 34-lithium battery, 35-Switching Power Supply, 36-fan.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Embodiment 1
A kind of three-phase electric energy meter on-site calibrator, as Figure 1-4, comprise shell, expose the terminal panel 21 of housing top end end face, the connection terminal 20 be located on terminal panel 21, the front of shell and side are fixedly embedded with liquid crystal touch screen 4 and blue tooth wireless communication interface 26 respectively, shell shell internal fixtion is provided with the analog circuit board 28 and digital circuit board 23 that are connected by circuit, be connected by lead wire circuit between analog circuit board 28 with connection terminal 20, liquid crystal touch screen 4 is located on digital circuit board 23.
Liquid crystal touch screen 4 is provided with status display area 3, vector plot district 6, error checking district 2, electrical parameter district 5, function key area 1, status display area 3, vector plot district 6, error checking district 2, electrical parameter district 5, function key area 1 lays respectively at the top of touch-screen, left side, middle, bottom, right side, status display area 3 is for showing current optimum configurations state, system time, bluetooth state, battery electric quantity state, optimum configurations state comprises ammeter type, output frequency, input current, instrument temperature, vector plot district 6 differentiates result for the vector plot of electric current and voltage vector mutual relationship during display measurement and wiring, error checking district 2 is for showing master meter error and the subtabulation error of Watt-hour meter's field test, electrical parameter district 5 is for showing electrical parameter and variable, function key area 1 is provided with six function keys be arranged above and below, and six function keys are respectively waveform display key 19, frequency analysis key 18, no-load voltage ratio measures key 17, data preserve key 16, data query key 15, optimum configurations key 14.
Terminal installing plate 22 is provided with in shell, terminal installing plate 22 is between terminal panel 21 and analog circuit board 28, be fixedly connected with by the row's of patching pin 31 between terminal installing plate 22 with analog circuit board 28, be fixedly connected with by the combination of screw rod 29 with nut 30 between terminal installing plate 22 terminal panel 21.
Circuit connecting wire one end is connected on connection terminal 20, the circuit connecting wire other end penetrates in tester from connection terminal 20, circuit connecting wire is connected in analog circuit board 28 through the guiding of terminal installing plate 22, and circuit connecting wire is bound in the lead-in wire space of the row's of patching pin 31 formation.
Connection terminal 20 comprises a pulse terminal, three split-core type meter terminals, four voltage terminals, six current terminals, each connection terminal 20 to be penetrated in tester from connection terminal 20 interface by circuit connecting wire and forms a branch of bundle wiring harness, a branch of bundle wiring harness is through lead-in wire spatial joins in analog circuit board 28, and a branch of bundle wiring harness is limited to be strapped in lead-in wire space.
Analog circuit board 28 and digital circuit board 23 are for be arrangeding in parallel, analog circuit board 28 is provided with current transformer 33, lithium battery 34, Switching Power Supply 35, in current transformer 33, lithium battery 34, the Switching Power Supply 35 sandwiched space all between analog circuit board 28 and digital circuit board 23, fan 36 is fixed with between analog circuit board 28 and digital circuit board 23, fan 36 is positioned at the bottom of shell shell, and digital circuit board 23 is provided with the industrial control board 32 as Implementation of Embedded System man-machine interface.
The side of shell is also fixedly embedded with USB interface 24,485 communication interface 25, AccessPort mouth 27.
Shell comprises the protecgulum 7 being located at front, the bonnet 8 being located at the back side, protecgulum 7 is fixedly fastened on bonnet 8, liquid crystal touch screen 4 is fixedly embedded on protecgulum 7, and protecgulum 7 is also provided with power switch 13, is equipped with the ventilation fan hole 12 for heat dissipation ventilation bottom protecgulum 7 and bonnet 8.
Protecgulum 7 and bonnet 8 are equipped with draw-in groove 9, draw-in groove 9 are arranged with rear lid support 10, soft carry hand 11, soft carry hand 11 is stuck between protecgulum 7 and bonnet 8.
When the hand-held tester work of operator, rear lid support 10 can be close in tester case surface.After being used to complete, rear lid support 10 can be opened, soft carry hand 11 makes operator easily carry tester.
In a word, the foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (7)
1. a three-phase electric energy meter on-site calibrator, comprise shell, expose the terminal panel (21) of housing top end end face, be located at the connection terminal (20) on terminal panel (21), it is characterized in that: the front of shell and side are fixedly embedded with liquid crystal touch screen (4) and blue tooth wireless communication interface (26) respectively, shell shell internal fixtion is provided with the analog circuit board (28) and digital circuit board (23) that are connected by circuit, be connected by lead wire circuit between analog circuit board (28) with connection terminal (20), liquid crystal touch screen (4) is located on digital circuit board (23).
2. a kind of three-phase electric energy meter on-site calibrator according to claim 1, it is characterized in that: liquid crystal touch screen (4) is provided with status display area (3), vector plot district (6), error checking district (2), electrical parameter district (5), function key area (1), status display area (3), vector plot district (6), error checking district (2), electrical parameter district (5), function key area (1) lays respectively at the top of touch-screen, left side, middle, bottom, right side, function key area (1) is provided with six function keys be arranged above and below, six function keys are respectively waveform display key (19), frequency analysis key (18), no-load voltage ratio measures key (17), data preserve key (16), data query key (15), optimum configurations key (14).
3. a kind of three-phase electric energy meter on-site calibrator according to claim 1, it is characterized in that: in shell, be provided with terminal installing plate (22), terminal installing plate (22) is positioned between terminal panel (21) and analog circuit board (28), be fixedly connected with by the row's of patching pin (31) between terminal installing plate (22) with analog circuit board (28), be fixedly connected with by the combination of screw rod (29) with nut (30) between terminal installing plate (22) terminal panel (21).
4. a kind of three-phase electric energy meter on-site calibrator according to claim 1, it is characterized in that: analog circuit board (28) and digital circuit board (23) are for be arrangeding in parallel, analog circuit board (28) is provided with current transformer (33), lithium battery (34), Switching Power Supply (35), current transformer (33), lithium battery (34), Switching Power Supply (35) is all positioned at the sandwiched space between analog circuit board (28) and digital circuit board (23), fan (36) is fixed with between analog circuit board (28) and digital circuit board (23), fan (36) is positioned at the bottom of shell shell, digital circuit board (23) is provided with the industrial control board (32) as Implementation of Embedded System man-machine interface.
5. a kind of three-phase electric energy meter on-site calibrator according to claim 1 or 3 or 4, is characterized in that: the side of shell is also fixedly embedded with USB interface (24), 485 communication interfaces (25), AccessPort mouth (27).
6. a kind of three-phase electric energy meter on-site calibrator according to claim 1, it is characterized in that: shell comprises the protecgulum (7) being located at front, the bonnet (8) being located at the back side, protecgulum (7) is fixedly fastened on bonnet (8), liquid crystal touch screen (4) is fixedly embedded on protecgulum (7), protecgulum (7) is also provided with power switch (13), protecgulum (7) and bonnet (8) bottom are equipped with the ventilation fan hole (12) for heat dissipation ventilation.
7. a kind of three-phase electric energy meter on-site calibrator according to claim 6, it is characterized in that: protecgulum (7) and bonnet (8) are equipped with draw-in groove (9), draw-in groove (9) is arranged with rear lid support (10), soft carry hand (11), soft carry hand (11) is stuck between protecgulum (7) and bonnet (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520468535.1U CN204945359U (en) | 2015-06-24 | 2015-06-24 | A kind of three-phase electric energy meter on-site calibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520468535.1U CN204945359U (en) | 2015-06-24 | 2015-06-24 | A kind of three-phase electric energy meter on-site calibrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204945359U true CN204945359U (en) | 2016-01-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520468535.1U Expired - Fee Related CN204945359U (en) | 2015-06-24 | 2015-06-24 | A kind of three-phase electric energy meter on-site calibrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204945359U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738683A (en) * | 2019-01-22 | 2019-05-10 | 广东航粤电气有限公司 | A kind of communication type current transformer of more open types |
-
2015
- 2015-06-24 CN CN201520468535.1U patent/CN204945359U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738683A (en) * | 2019-01-22 | 2019-05-10 | 广东航粤电气有限公司 | A kind of communication type current transformer of more open types |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 Termination date: 20180624 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |