Automatic calibrating device of electric energy meter
An automatic energy meter calibration device that automatically acquires the width of the energy meter and switches the state of the wiring plug solves the problems of manual wiring and hardware dependence in the existing technology, realizes automatic identification of energy meter type and automatic switching of wiring state, and reduces human error rate and equipment cost.
Patent Information
- Application Number
- CN202520489988.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-20
AI Technical Summary
Existing electricity meter verification devices require manual wiring or rely on additional hardware to identify the electricity meter type, which can easily lead to identification errors and is also costly.
Design an automatic energy meter verification device that uses a clamp to measure the width of the energy meter, uses a controller to automatically determine the type of the energy meter, and switches the state of the wiring plug group to achieve automatic identification without manual wiring or additional hardware support.
It enables automatic identification of electricity meter type and automatic switching of wiring status, reducing human error rate and equipment cost.
Smart Images
Figure CN223955796U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of electric energy meter calibration, especially relates to an automatic calibration device of electric energy meter. BACKGROUND
[0002] Electric energy meter is also called electric meter, and is used for detecting current, voltage, power and power consumption in an electric circuit.
[0003] At present, electric energy meter calibration devices are mainly divided into single-function calibration devices and multi-function calibration devices.
[0004] The single-function calibration device only supports single-phase or three-phase electric energy meter calibration.
[0005] The multi-function calibration device supports single-phase and three-phase electric energy meter calibration.
[0006] (1) Automatic recognition through wiring mode, the device automatically judges the type of electric energy meter by detecting the number of wiring terminals and wiring mode of the electric energy meter, but manual wiring is required, and if the wiring is wrong, it may cause recognition error.
[0007] (2) Manual setting recognition, the operator manually selects the type of electric energy meter in the software interface of the calibration device before calibration, but it is only suitable for smart electric energy meters supporting communication.
[0008] (3) Recognition through electric energy meter communication protocol, the device can read the model and type of the electric energy meter through the communication interface, but it relies on manual operation and may introduce human error.
[0009] (4) Recognition through voltage and current detection, the device judges the type of electric energy meter by detecting the voltage and current input of the electric energy meter, but it relies on manual operation, requires manual wiring, and if the wiring is wrong, it may cause recognition error.
[0010] (5) Recognition through electric energy meter nameplate information, the device is equipped with image recognition function, which automatically recognizes the type of electric energy meter by scanning the nameplate information of the electric energy meter, but it needs additional hardware support (such as camera), which is high in cost.
[0011] Therefore, it is urgent to design an automatic calibration device for electric energy meter to solve the above problems. UTILITY MODEL CONTENTS
[0012] The utility model discloses a purpose at providing a kind of automatic verification device of electric energy meter, with the advantage of automatically determining electric energy meter type in the process of clamping electric energy meter, the problem mentioned in background art is solved.
[0013] To achieve the above object, the specific technical scheme of the utility model of a kind of automatic verification device of electric energy meter is as follows:
[0014] An automatic verification device of electric energy meter, comprising a verification table, a plurality of verification areas are provided on the verification table, a clamp assembly is provided on the verification area, the clamp assembly clamps the electric energy meter, each verification area is provided with a corresponding wiring plug group, the wiring plug group is provided with three-phase verification state and single-phase verification state, the wiring plug group can rotate relative to the verification table, so that the wiring plug group switches between three-phase verification state and single-phase verification state according to the type of electric energy meter.
[0015] Further, the wiring plug group includes three-phase wiring plug and single-phase wiring plug, when the wiring plug group is in three-phase verification state, the three-phase wiring plug can be plugged into the wiring socket of three-phase electric energy meter, and when the wiring plug group is in single-phase verification state, the single-phase wiring plug can be plugged into the wiring socket of single-phase electric energy meter.
[0016] Further, the wiring plug group further includes a connecting plate, the connecting plate is connected with the three-phase wiring plug and the single-phase wiring plug, a first rotating shaft is fixedly connected to the connecting plate, and the end of the first rotating shaft away from the connecting plate is driven to rotate by a motor.
[0017] Further, the verification area includes a verification plate, the verification plate is used for placing the electric energy meter, and the verification plate can slide relative to the verification table, so that after the state switching of the wiring plug group is completed, the verification plate drives the electric energy meter to slide to the wiring plug group until the wiring plug group is plugged into the wiring socket of the electric energy meter, so that the verification of the electric energy meter is started.
[0018] Further, the verification plate is fixedly connected with the output end of the electric push rod, so that the sliding distance of the verification plate is controlled by the electric push rod.
[0019] Further, a baffle is fixedly connected to the verification plate, and the baffle can contact the top end of the electric energy meter.
[0020] Further, the clamp assembly is arranged on the verification plate, and the clamp assembly clamps the electric energy meter on the verification plate.
[0021] Further, the clamp assembly includes a first clamp and a second clamp, the first clamp and the second clamp slide towards each other or away from each other, and when the first clamp and the second clamp slide towards each other, the electric energy meter on the verification plate is centered and clamped.
[0022] Further, the first clamp and the second clamp are provided with pressure sensors, when the first clamp and the second clamp clamp the electric energy meter on the test board and the pressure values of the pressure sensors on the first clamp and the second clamp are the same, the first clamp and the second clamp stop sliding, and the distance between the first clamp and the second clamp is obtained to determine the type of the electric energy meter.
[0023] Further, the first clamp is fixedly connected with a first rack, the second clamp is fixedly connected with a second rack, a gear is engaged between the first rack and the second rack, and a second rotating shaft is fixedly connected to the gear and is driven to rotate by a motor.
[0024] The utility model has the advantages that when the electric energy meter is clamped, the width of the electric energy meter is obtained to determine the type of the electric energy meter, then the wiring plug set is switched to the state suitable for the type of the electric energy meter, manual wiring and manual identification are not needed, no additional hardware support is needed, and the cost is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 It is a whole structure schematic view of the utility model testing device.
[0026] Figure 2 It is a structure schematic view of the utility model testing area.
[0027] Figure 3 It is a structure schematic view of the utility model wiring plug set.
[0028] Figure 4 It is a structure schematic view of the utility model clamp assembly.
[0029] Marking in the drawing: 1, test table; 2, test area; 21, test board; 22, baffle; 23, first clamp; 24, second clamp; 25, electric push rod; 26, first rack; 27, second rack; 28, gear; 29, second rotating shaft; 3, wiring plug set; 31, three-phase wiring plug; 32, single-phase wiring plug; 33, connecting plate; 34, first rotating shaft; 35, partition. DETAILED DESCRIPTION
[0030] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.
[0031] Those skilled in the art will understand that the combination of features of different embodiments means that they are within the scope of the application and form different embodiments, although some embodiments herein include certain features rather than others included in other embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.
[0032] The application will be described below with reference to the accompanying drawings Figure 1 to the accompanying drawings Figure 4 An automatic verification device for an electric energy meter is described.
[0033] The multifunctional verification device supports single-phase and three-phase electric energy meter verification. The existing multifunctional verification device mainly identifies single-phase or three-phase in the following ways:
[0034] (1) Automatic identification by wiring mode. The device automatically judges the type of the electric energy meter by detecting the number and wiring mode of the wiring plug of the electric energy meter, but manual wiring is required, and if the wiring is incorrect, it may lead to incorrect identification.
[0035] (2) Identification by manual setting. Before verification, the operator manually selects the type of the electric energy meter in the software interface of the verification device, but it is only suitable for smart electric energy meters supporting communication.
[0036] (3) Identification by electric energy meter communication protocol. The device can read the model and type of the electric energy meter through the communication interface, but it relies on manual operation and may introduce human errors.
[0037] (4) Identification by voltage and current detection. The device judges the type of the electric energy meter by detecting the voltage and current input of the electric energy meter, but it relies on manual operation, requires manual wiring, and if the wiring is incorrect, it may lead to incorrect identification.
[0038] (5) Identification by electric energy meter nameplate information. The device is equipped with image recognition function, which automatically identifies the type of the electric energy meter by scanning the nameplate information of the electric energy meter, but it needs additional hardware support (such as camera) and has high cost.
[0039] The existing single-phase meter electric energy meter is small in size, usually designed in compact type, and the common size is about 110mm x 80mm x 70mm.
[0040] The existing three-phase electric energy meter is large in size, as it needs to accommodate more circuits and wiring plugs, and the common size is about 150mm x 110mm x 70mm.
[0041] Therefore, the automatic verification device of the electric energy meter comprises a verification table 1, a plurality of verification areas 2 are arranged on the verification table 1, a clamp assembly is arranged on the verification area 2, the clamp assembly clamps the electric energy meter, the width of the electric energy meter is obtained, the type of the electric energy meter is determined according to the width of the electric energy meter, each verification area 2 is provided with a corresponding wiring plug group 3, the wiring plug group 3 is provided with a three-phase verification state and a single-phase verification state, the wiring plug group 3 can rotate relative to the verification table 1, so that the wiring plug group 3 is switched between the three-phase verification state and the single-phase verification state according to the type of the electric energy meter.
[0042] Regarding the discrimination of the type of the electric energy meter, preferably, the controller of the automatic verification device is inputted with the size data of a plurality of electric energy meters, so that the data is uploaded to the controller after the width of the electric energy meter is obtained, the controller determines the type of the electric energy meter according to the width, and determines the length and height of the electric energy meter, and in other embodiments of the utility model, a width limit value can also be arranged, the width limit value can be any value between 90mm-100mm, when the obtained width value of the electric energy meter is greater than the width limit value, the electric energy meter is a three-phase electric energy meter, and when the obtained width value of the electric energy meter is less than the width limit value, the electric energy meter is a single-phase electric energy meter.
[0043] When the type of the electric energy meter is determined to be a three-phase electric energy meter, the wiring plug group 3 enters the three-phase verification state, and when the type of the electric energy meter is determined to be a single-phase electric energy meter, the wiring plug group 3 enters the single-phase verification state.
[0044] Regarding the number of the verification areas 2, three verification areas 2 are displayed in the accompanying drawings of the utility model, but it should be noted that the number of the verification areas 2 can be multiple, which is not limited herein. Figure 1
[0045] The wiring plug group 3 comprises a three-phase wiring plug 31 and a single-phase wiring plug 32, when the wiring plug group 3 is in the three-phase verification state, the three-phase wiring plug 31 rotates to the top of the verification table 1, and the single-phase wiring plug 32 rotates to the inside of the verification table 1, so that the three-phase wiring plug 31 can be plugged into the wiring insertion port of the three-phase electric energy meter, when the wiring plug group 3 is in the single-phase verification state, the single-phase wiring plug 32 rotates to the top of the verification table 1, and the three-phase wiring plug 31 rotates to the inside of the verification table 1, so that the single-phase wiring plug 32 can be plugged into the wiring insertion port of the single-phase electric energy meter.
[0046] Preferably, a partition plate 35 is arranged between the three-phase wiring plug 31 and the single-phase wiring plug 32, that is, the three-phase wiring plug 31 and the single-phase wiring plug 32 are separated by the partition plate 35.
[0047] After the wiring plug group 3 is plugged into the wiring insertion port of the electric energy meter, the automatic verification program is started, the electric energy meter data is collected, the error is calculated and whether it is qualified is judged, and then the verification report is generated to record the verification result.
[0048] The specific number of the wire connectors in the single-phase wire connector 32 is four; since the three-phase electric energy meter is divided into three-phase three-wire electric energy meter and three-phase four-wire electric energy meter, the specific number of the wire connectors in the three-phase wire connector 31 is 6 or 8.
[0049] The testing device further comprises a connecting plate 33 connected with the wire connector group 3, the connecting plate 33 is fixedly connected with a first rotating shaft 34, one end of the first rotating shaft 34 away from the connecting plate 33 is driven to rotate by a motor, after the type of the electric energy meter is determined, the controller controls whether the motor connected with the first rotating shaft 34 is started, if the determination result of the type of the electric energy meter does not correspond to the state of the wire connector group 3, the motor connected with the first rotating shaft 34 is started, the output end of the motor connected with the first rotating shaft 34 drives the connecting plate 33 and the wire connector group 3 to rotate 180 degrees, so as to complete the state conversion of the wire connector group 3.
[0050] The testing area 2 comprises a testing plate 21 for placing the electric energy meter, the testing plate 21 is slidable relative to the testing table 1, so that after the state conversion of the wire connector group 3 is completed, the testing plate 21 drives the electric energy meter to slide towards the wire connector group 3 until the wire connector group 3 is plugged with the wire connector of the electric energy meter, so as to start the testing of the electric energy meter.
[0051] When the type of the electric energy meter is determined, the length and the height of the electric energy meter are determined by the controller, after the length of the electric energy meter is determined, the controller calculates the sliding distance required by the electric energy meter, then the testing plate 21 drives the electric energy meter to slide, so that the wire connector of the electric energy meter of different length can be plugged with the wire connector group 3, which ensures the plugging quality.
[0052] The testing plate 21 is fixedly connected with a baffle 22, the baffle 22 can contact with the top end of the electric energy meter, when the electric energy meter is placed, the top end of the electric energy meter contacts with the baffle 22, so that the baffle 22 is used as the reference; the sliding distance required by the electric energy meter is the distance between the baffle 22 and the wire connector group 3 minus the length of the electric energy meter.
[0053] The testing plate 21 is fixedly connected with the output end of an electric push rod 25, so that the sliding distance of the testing plate 21 is controlled by the electric push rod 25, after the controller calculates the sliding distance required by the electric energy meter, the controller controls the sliding distance of the push rod to be the sliding distance required by the electric energy meter.
[0054] The clamp assembly is arranged on the test board 21, and the clamp assembly comprises a first clamp 23 and a second clamp 24, the first clamp 23 and the second clamp 24 slide towards or away from each other, when the first clamp 23 and the second clamp 24 slide towards each other, the electric energy meter on the test board 21 is centered and clamped, through the centering of the first clamp 23 and the second clamp 24 on the electric energy meter, the electric energy meter is located at the center of the test area 2, so that the wiring socket of the electric energy meter is located on the same straight line as the wiring plug set 3; through the clamping of the first clamp 23 and the second clamp 24, the electric energy meter is fixed and the width of the electric energy meter is obtained.
[0055] The first clamp 23 and the second clamp 24 are both provided with pressure sensors, when the first clamp 23 and the second clamp 24 clamp the electric energy meter on the test board 21 and the pressure values of the pressure sensors on the first clamp 23 and the second clamp 24 are the same, the first clamp 23 and the second clamp 24 stop sliding, and the distance between the first clamp 23 and the second clamp 24 is obtained to determine the type of the electric energy meter.
[0056] Through the setting that the first clamp 23 and the second clamp 24 stop sliding when the pressure values of the pressure sensors on the first clamp 23 and the second clamp 24 are the same, the electric energy meter is prevented from being damaged by the first clamp 23 and the second clamp 24, and the width of the electric energy meter is accurately obtained, and when centering, only one pressure sensor is pressed to obtain a pressure value when one clamp pushes the electric energy meter, when the centering and clamping of the electric energy meter are completed, the pressure values of the pressure sensors on the first clamp 23 and the second clamp 24 are the same, so the first clamp 23 and the second clamp 24 stop sliding.
[0057] Regarding the distance between the first clamp 23 and the second clamp 24, a distance sensor can be arranged on the first clamp 23 and the second clamp 24, the first clamp 23 is an output end, and the second clamp 24 is a receiving end, when the pressure values of the pressure sensors are the same, the distance value of the distance sensor at this time is obtained, and the distance value is the width value of the electric energy meter, in other embodiments of the utility model, the first clamp 23 can be a receiving end, and the second clamp 24 can be an output end.
[0058] The first clamp 23 is fixedly connected with a first rack 26, the second clamp 24 is fixedly connected with a second rack 27, a gear 28 is engaged between the first rack 26 and the second rack 27, the second rotating shaft 29 is fixedly connected with the gear 28, and the second rotating shaft 29 is driven to rotate by a motor, since the gear 28 is located between the first rack 26 and the second rack 27, that is, the first rack 26 and the second rack 27 are located at the upper and lower ends of the gear 28, so that the first rack 26 and the second rack 27 slide towards or away from each other when the gear 28 rotates, after the electric energy meter is placed on the test board 21, the motor connected with the second rotating shaft 29 is started to drive the first clamp 23 and the second clamp 24 to slide towards each other to clamp the electric energy meter.
[0059] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to exhaust all the embodiments. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.
Claims
1. An automatic verification device of an electric energy meter, characterized by, The utility model provides a kind of electric energy meter testing device, including test table (1), multiple test areas (2) are equipped on the test table (1), clamp assembly is equipped on the test area (2), the clamp assembly is clamped to electric energy meter, each test area (2) is equipped with corresponding wiring plug group (3), wiring plug group (3) is equipped with three-phase test state and single-phase test state, wiring plug group (3) can be rotated relative to test table (1), so that wiring plug group (3) switches between three-phase test state and single-phase test state according to the type of electric energy meter.
2. The automatic calibrating device of the electric energy meter according to claim 1, characterized in that, The wiring plug group (3) is connected with a first rotating shaft (34), and the first rotating shaft (34) is driven to rotate by a motor at an end away from a connecting plate (33).
3. The automatic calibrating device of electric energy meter according to claim 1, characterized in that, The wiring plug group (3) includes three-phase wiring plugs (31) and single-phase wiring plugs (32), when the wiring plug group (3) is in the three-phase test state, the three-phase wiring plugs (31) can be plugged into the wiring sockets of the three-phase electric energy meter, and when the wiring plug group (3) is in the single-phase test state, the single-phase wiring plugs (32) can be plugged into the wiring sockets of the single-phase electric energy meter.
4. The automatic calibrating device of electric energy meter according to claim 3, characterized in that, The wiring plug group (3) further includes a connecting plate (33) connected with the three-phase wiring plugs (31) and the single-phase wiring plugs (32), and a partition plate (35) is fixedly connected to the connecting plate (33) to separate the three-phase wiring plugs (31) and the single-phase wiring plugs (32).
5. The automatic calibrating device of electric energy meter according to claim 1, characterized in that, The test area (2) includes a test plate (21) for placing the electric energy meter, and the test plate (21) can slide relative to the test table (1) to slide the electric energy meter to the wiring plug group (3) after the state of the wiring plug group (3) is switched, until the wiring plug group (3) is plugged into the wiring sockets of the electric energy meter, to start the test of the electric energy meter.
6. The automatic calibrating device of electric energy meter according to claim 5, characterized in that, The test plate (21) is fixedly connected to the output end of the electric push rod (25) to control the sliding distance of the test plate (21) by the electric push rod (25).
7. The automatic calibrating device of electric energy meter according to claim 5, characterized in that, The test plate (21) is fixedly connected with a baffle (22) which can contact the top end of the electric energy meter.
8. The automatic calibrating device of electric energy meter according to claim 1, characterized in that, The clamp assembly is arranged on the test plate (21), and the clamp assembly includes a first clamp (23) and a second clamp (24), the first clamp (23) and the second clamp (24) slide towards or away from each other, and when the first clamp (23) and the second clamp (24) slide towards each other, the electric energy meter on the test plate (21) is centered and clamped.
9. The automatic calibrating device of electric energy meter according to claim 8, characterized in that, The first clamp (23) and the second clamp (24) are each provided with a pressure sensor, and when the first clamp (23) and the second clamp (24) clamp the electric energy meter on the test plate (21) and the pressure values of the pressure sensors on the first clamp (23) and the second clamp (24) are the same, the first clamp (23) and the second clamp (24) stop sliding, and the distance between the first clamp (23) and the second clamp (24) is obtained to determine the type of the electric energy meter.
10. The automatic calibrating device of electric energy meter according to claim 8, characterized in that, The first clamp (23) is fixedly connected with a first rack (26), the second clamp (24) is fixedly connected with a second rack (27), the first rack (26) and the second rack (27) are engaged with a gear (28), the gear (28) is fixedly connected with a second rotating shaft (29), and the second rotating shaft (29) is driven to rotate by a motor.