Field detection device for relay of electric energy meter

Abstract

The utility model relates to the technical field of relay testing, in particular to an on-site detection device for an electric energy meter relay, which comprises a relay detection circuit and a bearing frame for arranging the relay detection circuit, and the bottom of the bearing frame is provided with a ground supporting structure used for being supported on the ground. An electric energy meter limiting seat is arranged above the ground supporting structure on the bearing frame, the electric energy meter limiting seat is provided with a limiting structure used for limiting and supporting the electric energy meter, and after the electric energy meter is detached from the electric meter box, the limiting structure of the electric energy meter limiting seat is used for limiting and supporting the electric energy meter. The bearing frame is directly supported on the ground through the ground supporting structure, and the electric energy meter is supported on the bearing frame in a limiting manner, so that a worker does not need to support the electric energy meter and the detection device for wiring when performing field detection, the influence of ground conditions can be avoided, and the convenience of wiring operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of relay testing, in particular to an on-site detection device for an electric energy meter relay. Background Art

[0002] The built-in relay of the energy meter is a component that is connected in series to the live wire circuit and can directly switch on and off the user's electricity. Relay failure accounts for a large proportion of the reasons for the failure of the energy meter during on-site operation. When judging the relay failure on-site, it is necessary to conduct a switch-on test on the relay. The on-site inspection of the energy meter relay is that the operator uses the corresponding inspection equipment to inspect the relay at the installation site of the energy meter to check whether the energy meter can control the relay on and off normally and whether the individual relay can switch on and off normally.

[0003] The detection device has a corresponding relay detection circuit, wherein the detection device for detecting whether the electric energy meter can normally control the on and off of the relay is to connect its detection circuit to the electric energy meter in communication, and the electric energy meter has an interface that is connected to the corresponding detection circuit through a connecting line. The detection circuit sends commands to the electric energy meter to control the closing and opening of the relay, and can detect whether the electric energy meter can normally control the on and off of the relay. The detection device for detecting whether a single relay can normally be turned on and off is to disconnect the electrical connection between the relay and other components of the electric energy meter, and then use a detection circuit composed of a driving chip and a driving circuit to control the on and off of the relay separately. The detection circuit has a relay connector, and the relay connector is used to connect the corresponding contact part of the relay coil through a connecting line to control the relay to perform the opening and closing action, and can detect whether a single relay is normally turned on and off.

[0004] On-site detection equipment is generally a handheld device. When using the detection equipment for detection, since wiring needs to be performed between the detection equipment and the electric energy meter, based on safety requirements, the electric energy meter needs to be removed for detection, and wiring operations cannot be performed directly in the meter box. After the electric energy meter is removed, it is connected to the detection equipment and power supply. When wiring, the worker puts the electric energy meter on the ground for wiring operations. For some outdoor meter boxes, sometimes there will be a small amount of mud and water on the ground. In this way, the electric energy meter cannot be placed on the ground, and the worker needs to hold the electric energy meter with his body for wiring, which is inconvenient to operate. Utility Model Content

[0005] The utility model aims to provide an on-site detection device for an electric energy meter relay, so as to solve the problem that when the detection equipment is currently used to detect the electric energy meter relay, it is limited by ground conditions and workers need to hold the electric energy meter for wiring, which is inconvenient to operate.

[0006] The technical solution of the on-site detection device for electric energy meter relay of the utility model is:

[0007] A field detection device for an electric energy meter relay comprises a relay detection circuit and a support frame for arranging the relay detection circuit. A ground support structure for supporting the electric energy meter on the bottom of the support frame is provided. An electric energy meter limit seat is provided on the support frame above the ground support structure. The electric energy meter limit seat is provided with a limit structure for limiting support of the electric energy meter.

[0008] Furthermore, the limiting structure includes a supporting surface for supporting the electric energy meter and a connecting hole provided on the supporting surface for fixed connection with the electric energy meter.

[0009] Furthermore, the supporting surface is an inclined surface.

[0010] Furthermore, the relay detection circuit includes a processor and a communication connector arranged on the electric energy meter limit seat, and the communication connector is used to connect to the communication interface of the electric energy meter through a connecting line so that the electric energy meter receives the command of the processor and controls the relay to perform opening and closing actions.

[0011] Furthermore, the relay detection circuit includes a processor, a drive chip, and a relay connector arranged on the electric energy meter limit seat. The processor is communicatively connected to the drive chip, and the relay connector is used to connect the contact part of the relay through a connecting line so that the drive chip receives the command of the processor and controls the relay to perform opening and closing actions.

[0012] Furthermore, the relay detection circuit includes an electric energy meter power connector arranged on the electric energy meter limit seat, and the electric energy meter power connector is used to connect to the power interface of the electric energy meter through a connecting line.

[0013] Furthermore, the relay detection circuit includes a processor and a drive chip. The processor has an interface for communicating with the drive chip and an interface for communicating with the electric energy meter. The drive chip has an interface for conductively connecting with the relay of the electric energy meter to control the opening and closing actions of the relay.

[0014] Furthermore, the carrier frame includes a mounting frame and a supporting frame that are separately arranged, the electric energy meter limit seat is arranged on the supporting frame, the relay detection circuit includes a processor and a driving chip, the processor is communicatively connected to the driving chip, the driving chip has an interface for conductively connecting to the relay of the electric energy meter to control the opening and closing actions of the relay, the driving chip is arranged on the supporting frame, and the processor is arranged on the mounting frame.

[0015] Furthermore, both the mounting frame and the supporting frame are provided with a wiring cavity for laying out the wires.

[0016] Furthermore, the relay detection circuit includes a barcode scanner for reading barcode information on the electric energy meter to obtain the electric energy meter number. The barcode scanner is arranged on the mounting frame and is communicatively connected with the processor.

[0017] Beneficial effect: The utility model is improved on the basis of the on-site detection device of the electric energy meter relay in the prior art. The relay detection circuit is arranged through the support frame. At the same time, the ground support structure at the bottom of the support frame and the electric energy meter limit seat arranged on the top are utilized. After the electric energy meter is removed from the meter box, the electric energy meter can be limitedly supported by the limit structure of the electric energy meter limit seat. The support frame is directly supported on the ground through the ground support structure, and the electric energy meter limit support is on the support frame. In this way, when workers conduct on-site detection, they do not need to hold the electric energy meter and the detection device for wiring, which can avoid being affected by ground conditions and is conducive to the convenience of wiring operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the support frame and the components installed on the support frame of the electric energy meter relay field detection device according to an embodiment of the utility model;

[0019] Figure 2 A schematic diagram of the installation frame of the electric energy meter relay field detection device and the installation of components thereon according to an embodiment of the utility model;

[0020] Figure 3 The present invention is a schematic diagram showing the connection of components of a relay detection circuit of an electric energy meter relay field detection device according to an embodiment of the present invention.

[0021] In the figure: 100, electric energy meter; 101, relay; 102, terminal; 103, communication interface; 104, power interface; 105, barcode area; 1, support bracket; 2, electric energy meter limiter; 3, support base; 4, support foot; 5, mounting base; 6, mounting column; 7, terminal mounting base; 8, barcode scanner support; 9, locking top screw; 10, fixing screw; 11, power inlet; 12, power adapter; 13, isolation power supply; 14, switch; 15, transformer; 16, rectifier bridge; 17, first filter capacitor; 18, second filter capacitor; 19, voltage regulator; 20, driver chip; 21, relay connector; 22, input interface; 23, processor; 24, barcode scanner; 25, electric energy meter power connector; 26, communication connector. DETAILED DESCRIPTION

[0022] The utility model discloses an on-site detection device for an electric energy meter relay, in which a relay detection circuit is arranged through a carrier frame, and at the same time, by utilizing a ground support structure at the bottom of the carrier frame and an electric energy meter limit seat arranged on the top, after the electric energy meter is removed from the electric meter box, the electric energy meter can be limit-supported by utilizing the limit structure of the electric energy meter limit seat, and the carrier frame is directly supported on the ground through the ground support structure, and the electric energy meter limit support is on the carrier frame, so that when workers conduct on-site detection, they do not need to hold the electric energy meter and the detection device for wiring, which can avoid being affected by ground conditions and is conducive to the convenience of wiring operation.

[0023] Embodiment of the on-site detection device for electric energy meter relay of the utility model:

[0024] like Figure 1 , Figure 2 As shown, the on-site detection device for the electric energy meter relay includes a relay detection circuit and a carrier frame for the relay detection circuit, the carrier frame includes a support frame body and a mounting frame body that are separately arranged, the relay detection circuit includes a part arranged on the support frame body and a part arranged on the mounting frame body, when the relay 101 of the electric energy meter 100 is detected, the support frame body and the mounting frame body are used in combination, and the electric energy meter 100 is connected to the relay detection circuit, and the components of the relay detection circuit are arranged on the two frames respectively, which is convenient to carry separately. The bottom of the support frame body and the mounting frame body can be supported on the ground, and the support frame body is provided with an electric energy meter limit seat 2, and the electric energy meter limit seat 2 is provided with a limit structure for limiting the electric energy meter 100, so that the electric energy meter 100 can be placed on the electric energy meter limit seat 2 after being removed from the electric meter box, so as to facilitate the wiring operation between the electric energy meter 100 and the relay detection circuit and the wiring operation between the electric energy meter 100, the relay detection circuit and the power supply.

[0025] The support frame includes a support support 1, an electric energy meter limit seat 2, a support base 3 and a support leg 4. The support support 1 is fixed on the upper side of the support base 3, the support leg 4 is fixed on the lower side of the support base 3, and the electric energy meter limit seat 2 is fixed on the top of the support support 1. The support leg 4 is used to support on the ground, and the four corners of the support base 3 are provided with support legs 4 so that the support base 3 has a certain height from the ground. A cantilever arm is provided at the top of the support support 1, and the electric energy meter limit seat 2 is fixed on the cantilever arm. The electric energy meter limit seat 2 is arranged at an angle. The limiting structure of the electric energy meter limit seat 2 includes an inclined upward surface of the electric energy meter limit seat 2, which constitutes a supporting surface for supporting the electric energy meter 100. The supporting surface is provided with a connecting hole for fixed connection with the electric energy meter 100. The electric energy meter 100 has a connecting ear with a hole on the connecting ear. The electric energy meter 100 can be fixed by using the hole on the connecting ear of the electric energy meter 100 and the connecting hole on the electric energy meter limit seat 2 in combination with the fixing screw 10 to form a limiting support for the electric energy meter 100. The structure is simple and the connection is convenient. Moreover, the inclined supporting surface is used to facilitate wiring operations.

[0026] The mounting frame includes a mounting base 5, a mounting column 6, a terminal mounting seat 7 and a barcode scanner support 8. The mounting column 6 is fixed to the upper side of the mounting base 5, and the lower side of the mounting column 6 is supported on the ground. The barcode scanner support 8 is fixed to the middle part of the mounting column 6 in the up and down direction. A diagonal brace is also provided between the barcode scanner support 8 and the mounting column 6, and the terminal mounting seat 7 is fixed to the top of the mounting column 6. The mounting column 6 is a telescopic sleeve structure, including a fixed sleeve and a movable sleeve. The fixed sleeve has a part extending into the movable sleeve. The lower end of the fixed sleeve is fixed to the mounting base 5, and the movable sleeve is fixed to the terminal mounting seat 7 and the barcode scanner support 8. The height of the barcode scanner support 8 can be adjusted. After adjustment, the movable sleeve and the fixed sleeve can be fixed by a locking top screw 9 threaded on the movable sleeve, which is convenient to use.

[0027] The legs 4 of the support frame and the lower side of the mounting base 5 of the mounting frame constitute a ground support structure. The support support 1 of the support frame, the electric energy meter limit seat 2, and the support base 3 are all cavity structures and are interconnected. The mounting base 5 of the mounting frame, the mounting column 6, the terminal mounting seat 7, and the barcode scanner support 8 are all cavity structures and are interconnected. The corresponding cavities can be used to form a wiring cavity for laying wires. The wiring cavity is used to lay the wires of the relay detection circuit, which is beneficial to wire protection and regular wiring. The components and wires of the relay detection circuit are arranged on the support frame and the mounting frame respectively, and the lines on the two frames are connected through corresponding interfaces and wires.

[0028] Combination Figure 1 , Figure 2 and Figure 3The relay detection circuit includes a power supply inlet 11, a power adapter 12, a barcode scanner 24, a processor 23 and a drive circuit, and the drive circuit includes an isolated power supply 13, a switch 14, a transformer 15, a rectifier bridge 16, a first filter capacitor 17, a second filter capacitor 18, a voltage stabilizer 19, a drive chip 20, a relay connector 21, and an input interface 22. The power supply inlet 11, the power adapter 12 and the drive circuit are arranged on the support frame, the power supply inlet 11 is arranged on the front side of the bottom of the support support 1, the switch 14 is arranged on the upper side of the bottom of the support support 1, the input interface 22 is arranged on the left side of the bottom of the support support 1, the power adapter 12, the isolated power supply 13, the transformer 15, the rectifier bridge 16, the first filter capacitor 17, the second filter capacitor 18, the voltage stabilizer 19, and the drive chip 20 are arranged in the internal cavity of the support support 1, and the relay connector 21 is arranged on the electric energy meter limit seat 2 for connecting the terminal 102 of the relay 101 of the electric energy meter 100 through a connecting line. The barcode scanner 24 and the processor 23 are arranged on the mounting frame, the barcode scanner 24 is mounted on the barcode scanner support 8, the processor 23 is an embedded intelligent terminal, and the processor 23 is mounted on the terminal mounting seat 7. The mounting frame is provided with a power supply interface (not shown in the figure), and the supporting support 1 of the supporting frame is also provided with a connection port corresponding to the power supply interface on the mounting frame to connect the power adapter 12 with the barcode scanner 24 and the processor 23 through a connecting line to supply power to the barcode scanner 24 and the processor 23. The relay detection circuit also includes a communication connector 26 and an electric energy meter power connector 25 arranged on the electric energy meter limit seat 2. The communication connector 26 is a connector, one end of which is connected to the corresponding interface of the processor 23 through a connecting line, and the other end is connected to the communication interface 103 of the electric energy meter 100 through a connecting line so that the electric energy meter 100 receives the command of the processor 23 and controls the relay 101 to perform the opening and closing action. The power connector 25 of the electric energy meter is connected to the power adapter 12 through the internal wiring of the support bracket 1, and is used to connect to the power interface 104 of the electric energy meter 100 through a connecting line to supply power to the electric energy meter 100.

[0029] The power inlet 11 is used to connect to the 220V mains electricity. The power inlet 11 is conductively connected to the power adapter 12. The energy meter 100, the barcode scanner 24, the processor 23 and the drive circuit are all conductively connected to the power adapter 12 to supply power to the energy meter 100, the barcode scanner 24, the processor 23 and the drive circuit. The drive circuit is a conventional circuit, and its principle is not repeated here. The switch 14 can realize the conduction and disconnection between the drive chip 20 and the power supply. The input interface 22 is conductively connected to the driver chip 20, and can be connected to the I / O port of the processor 23 through a connecting line to realize the communication connection between the processor 23 and the driver chip 20. The driver chip 20 has an interface conductively connected to the relay connector 21 through a connecting line. The relay connector 21 is conductively connected to the driver chip 20, and is connected to the terminal 102 of the relay 101 through a connecting line. The terminal 102 can adopt an RY3 terminal. The terminal has a fixing hole for the connecting wire to extend into and is fixedly connected by tightening the wire with a screw or directly clamping the terminal with a clip at the end of the connecting wire to achieve conductive connection. The terminal 102 constitutes the contact part of the relay 101. After receiving the command of the processor 23, the driver chip 20 can control the relay 101 to perform opening and closing actions. The processor 23 and the drive circuit can be used to detect the relay 101 of the electric energy meter 100 separately, which can eliminate the misjudgment caused by factors unrelated to the relay 101.

[0030] The barcode scanner 24 is a barcode scanner. The barcode scanner 24 is used to read the barcode information of the barcode area 105 on the electric energy meter 100 to obtain the meter number of the electric energy meter 100. The barcode scanner 24 is connected to the processor 23 for communication. The barcode scanner 24 and the processor 23 are respectively provided with RS232 interfaces for communication connection. The interface for connecting the communication connector 26 on the processor 23 is an RS485 interface. Correspondingly, the communication interface 103 of the electric energy meter 100 is an RS485 terminal structure. The embedded industrial intelligent terminal is connected to the RS232 interface of the barcode scanner through the RS232 interface. The barcode scanner obtains the meter number of the electric energy meter 100 by reading the barcode area 105 of the electric energy meter 100. After correctly reading the meter number, the embedded industrial intelligent terminal software sends a closing and opening command to the electric energy meter 100 to detect whether the relay 101 is qualified.

[0031] The detection device can improve detection efficiency and accuracy, and has the advantages of small size, light weight, and easy to carry. It can be easily carried to the site for detection, providing a strong guarantee for the normal operation of the power system.

[0032] In other implementations, the limiting structure may also be a placement groove provided on the electric energy meter limiting seat, and the electric energy meter is placed in the placement groove for limiting.

[0033] In other implementations, the supporting surface may also be a horizontal surface.

[0034] In other implementations, the communication connector, relay connector, and electric energy meter power connector may also be disposed on the support bracket, and their arrangement positions may be connected to the electric energy meter via connecting wires.

[0035] In other embodiments, the support frame may also be an integral frame, in which case the support bracket and the mounting column are fixed on the same base, and the base is provided with legs to support it on the ground.

[0036] In other implementations, the barcode scanner and the mounting frame may not be provided, and the processor may be mounted on the supporting frame. In this case, the detection device may only be used to detect the relay alone.

[0037] In other implementations, the driving circuit and the supporting frame may not be provided, and the power supply may be directly connected to the power supply circuit of the scanner and the processor. In this case, the detection device may only be used to detect whether the electric energy meter can normally control the on and off of the relay.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments without creative work, or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An on-site detection device for an electric energy meter relay, comprising a relay detection circuit, characterized in that: It also includes a support frame for laying out the relay detection circuit, a ground support structure for supporting the ground is provided at the bottom of the support frame, an electric energy meter limit seat is provided on the support frame above the ground support structure, and the electric energy meter limit seat is provided with a limit structure for limiting support of the electric energy meter.

2. The on-site detection device for electric energy meter relay according to claim 1 is characterized in that: The limiting structure comprises a supporting surface for supporting the electric energy meter and a connecting hole arranged on the supporting surface for fixed connection with the electric energy meter.

3. The on-site detection device for electric energy meter relay according to claim 2 is characterized in that: The supporting surface is an inclined surface.

4. The on-site detection device for electric energy meter relay according to claim 1, 2 or 3, characterized in that: The relay detection circuit includes a processor and a communication connector arranged on the electric energy meter limit seat, and the communication connector is used to connect the communication interface of the electric energy meter through a connecting line so that the electric energy meter receives the command of the processor and controls the relay to perform opening and closing actions.

5. The on-site detection device for electric energy meter relay according to claim 1, 2 or 3, characterized in that: The relay detection circuit includes a processor, a drive chip and a relay connector arranged on the electric energy meter limit seat. The processor is communicatively connected to the drive chip. The relay connector is used to connect the contact part of the relay through a connecting line so that the drive chip receives the command of the processor and controls the relay to perform opening and closing actions.

6. The on-site detection device for electric energy meter relay according to claim 1, 2 or 3, characterized in that: The relay detection circuit comprises an electric energy meter power supply connector arranged on the electric energy meter limit seat, and the electric energy meter power supply connector is used to connect to the power supply interface of the electric energy meter through a connecting line.

7. The on-site detection device for electric energy meter relay according to claim 1, 2 or 3, characterized in that: The relay detection circuit includes a processor and a drive chip. The processor has an interface for communicating with the drive chip and an interface for communicating with the electric energy meter. The drive chip has an interface for conductively connecting with the relay of the electric energy meter to control the opening and closing actions of the relay.

8. The on-site detection device for electric energy meter relay according to claim 1, 2 or 3, characterized in that: The carrier frame includes a mounting frame and a supporting frame which are separately arranged. The electric energy meter limit seat is arranged on the supporting frame. The relay detection circuit includes a processor and a driving chip. The processor is communicatively connected with the driving chip. The driving chip has an interface for conductively connecting with the relay of the electric energy meter to control the opening and closing actions of the relay. The driving chip is arranged on the supporting frame, and the processor is arranged on the mounting frame.

9. The on-site detection device for electric energy meter relay according to claim 8 is characterized in that: Both the mounting frame and the supporting frame are provided with a wiring cavity for laying out wires.

10. The on-site detection device for electric energy meter relay according to claim 8, characterized in that: The relay detection circuit includes a barcode scanner for reading barcode information on the electric energy meter to obtain the meter number of the electric energy meter. The barcode scanner is arranged on the mounting frame and is communicatively connected with the processor.

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