CN104749548B - A dual-purpose fast wiring test meter stand for three-phase electric energy meters - Google Patents

Abstract

The invention relates to a quick wiring device for testing an electric energy meter, in particular to a dual-purpose quick wiring test meter frame for a three-phase electric energy meter, which comprises a test panel, a current wiring crimping handle, a current wiring terminal module and a voltage pulse auxiliary terminal module, wherein the current wiring crimping handle, the current wiring terminal module and the voltage pulse auxiliary terminal module are positioned on the test panel, and the rapid wiring device is characterized in that: the electric energy meter testing device is characterized in that the electric energy meter is connected to the electric current wiring terminal module through the electric current wiring crimping handle, the voltage pulse auxiliary terminal module comprises a voltage wiring terminal and a pulse auxiliary signal terminal, the voltage wiring terminal and the pulse auxiliary signal terminal are mounted on the voltage pulse auxiliary signal mounting block, and the voltage wiring terminal and the pulse auxiliary signal terminal are crimped on a testing terminal corresponding to the electric energy meter through the signal terminal crimping handle and the voltage pulse auxiliary signal terminal moving module. The three-phase electric energy meter rapid wiring frame has the advantages of simple structure, stable and reliable performance, simplicity and convenience in operation, saving wiring and disconnecting time, improving the use efficiency of equipment, effectively improving the working efficiency, and being widely applied to a three-phase electric energy meter calibrating device.

Description

A dual-purpose fast wiring test meter stand for three-phase electric energy meters

technical field

The invention relates to a quick wiring device for electric energy meter testing, in particular to a dual-purpose quick wiring test stand for three-phase electric energy meters, which can be adapted to the fast wiring of two types of electric energy meters of three-phase direct type and transformer type. When the meter is calibrated, it is convenient to quickly connect or separate the meter calibration table and the electric energy meter. Using this part can effectively improve work efficiency.

Background technique

After the watt-hour meter is assembled, wiring inspection is required to test whether the watt-hour meter is qualified. In the current three-phase verification device, different test devices are used for verification for two kinds of three-phase electric energy meters of direct type and transformer type in order to simplify the wiring, and each device is equipped with a meter connection frame. The device equipped with the direct meter connecting frame cannot test and connect the transformer type electric energy meter, and the device equipped with the transformer type meter connecting frame cannot perform test wiring on the direct type electric energy meter. The use efficiency of the equipment is very low, and two sets of verification devices must be configured. Urgently need a kind of simple in structure, easy to use, can adapt to three-phase direct-type and transformer-type two types of electric energy meters fast wiring rack.

Contents of the invention

In order to overcome the above-mentioned defects, the purpose of the present invention is to provide a simple structure, safe and reliable, can quickly adjust the voltage and current connection position to connect the meter frame, and quickly adjust the position of the terminal to meet the test wiring requirements of the three-phase two wiring specifications of the electric energy meter The three-phase electric energy meter dual-purpose quick wiring test meter stand.

In order to achieve the above object, the technical solution adopted by the present invention is: a dual-purpose quick wiring test stand for a three-phase electric energy meter, including a test panel, and a current connection crimping handle, a current connection terminal module and a voltage pulse on the test panel The auxiliary terminal module is characterized in that: the current connection crimping handle crimps the electric energy meter to the current connection terminal module, the voltage pulse auxiliary terminal module includes a voltage connection terminal and a pulse auxiliary signal terminal, the voltage connection terminal and The pulse auxiliary signal terminal is installed on the voltage pulse auxiliary signal installation block, and the voltage connection terminal and the pulse auxiliary signal terminal are crimped on the corresponding test terminals of the energy meter through the signal terminal crimping handle and the voltage pulse auxiliary signal terminal moving module.

The voltage pulse auxiliary signal terminal moving module includes a rotatable crossbar provided with a signal terminal crimping handle, a first connecting rod part fixedly connected to the crossbar, and an inclined second connecting rod part connected to the front end of the first connecting rod part. The second link part and the voltage pulse auxiliary signal installation block connected to the rear end of the second link part.

The rotation of the crossbar is synchronized with the rotation of the signal terminal crimping handle, the rotation of the first link part is synchronized with the rotation of the crossbar, and the rotation mode of the first link part is that the hole is located at the front end of the first link part or rear end.

The voltage pulse auxiliary terminal module is also provided with a positioning block of the electric energy meter, and the positioning block of the electric energy meter is a slot with a set length.

The voltage connection terminal is a plug-in structure. When testing the direct type electric energy meter, insert the voltage connection terminal into the direct type voltage connection position, and when testing the transformer type electric energy meter, insert the voltage connection terminal into the transformer type voltage connection position.

The current terminal module is provided with 6 current terminals that can be moved left and right. The direct type electric energy meter uses a direct positioning block to move the current terminal to the direct type electric energy meter wiring position, and the transformer type electric energy meter adopts a transformer positioning block. Move the current terminal to the wiring position of the transformer type electric energy meter.

The pulse auxiliary signal terminals include multifunctional signal terminals, active signal terminals, reactive signal terminals, RS485 communication terminals, alarm and trip signal terminals.

Analyze the requirements of State Grid's "QGDW 1356-2013 Three-phase Smart Energy Meter Type Specification" for the appearance and size of smart energy meters. The wiring dimensions of the two specifications of the direct type and the transformer type electric energy meters are exactly the same except for the left and right spacing of the current terminals and the position of the voltage connection. It is only necessary that the connecting terminals at these two places can be adjusted quickly to meet the wiring requirements.

Quick adjustment method of current terminal: The current test signal adopts the crimping connection method from the bottom of the electric energy meter, and a set of six current terminal modules that can move freely left and right is designed, and then it is aimed at electric energy meters of two specifications: direct type and transformer type. Two current terminal positioning modules are designed, which are divided into direct positioning block and transformer positioning block. When testing the direct type electric energy meter, use the direct type positioning block to quickly adjust the limit of the current terminal; when testing the transformer type electric energy meter, use the transformer type positioning block to quickly adjust the limit of the current terminal;

Quick adjustment method of voltage terminal: The voltage and pulse auxiliary signal terminals are connected by crimping from the front of the energy meter. The wiring position of the direct type energy meter and the transformer type energy meter pulse auxiliary signal are exactly the same, and the wiring position does not need to be adjusted, only the voltage needs to be adjusted The wiring location is fine. On the voltage pulse auxiliary terminal module, two voltage terminal installation positions are set for the two types of electric energy meters. The voltage terminal adopts the plug-in method. Insert the voltage terminal into the voltage connection position of the transformer when installing the electric energy meter.

The beneficial effect of the present invention is that the three-phase watt-hour meter quick-wiring table frame based on the present invention has simple structure, stable and reliable performance, simple and convenient operation, saves the connection and disconnection time, improves the use efficiency of the equipment, and can effectively improve the work efficiency. The invention can be widely applied to the verification device of the three-phase electric energy meter.

Description of drawings

Fig. 1-2 is the assembly diagram of the dual-purpose quick wiring meter frame of the three-phase electric energy meter of the present invention;

Fig. 3-4 is the current connection terminal diagram of the three-phase electric energy meter dual-purpose quick wiring meter stand of the present invention;

Fig. 5-7 is the quick wiring terminal diagram of the voltage pulse auxiliary signal of the three-phase electric energy meter dual-purpose quick wiring meter stand of the present invention;

Figures 8-10 are test terminal diagrams of the three-phase electric energy meter dual-purpose quick wiring meter stand of the present invention;

Figures 11-12 are diagrams showing the usage of the three-phase electric energy meter dual-purpose quick wiring meter frame of the present invention;

13 is a schematic diagram of the working state of the voltage pulse auxiliary signal terminal moving module of the present invention;

Fig. 14 is a schematic diagram of the non-working state of the voltage pulse auxiliary signal terminal moving module of the present invention.

detailed description

As shown in Figure 1-2, the three-phase electric energy meter dual-purpose quick wiring meter rack consists of a test panel 1, a current wiring crimping handle 2, a current wiring terminal module 3 and a voltage pulse auxiliary terminal module 4.

As shown in Fig. 3-4, the current terminal module 3 is provided with six current terminals 3-1 which can be moved left and right for adjustment on the current terminal module 3 for current connection. Corresponding to the two structural types, the electric energy meter adopts the positioning block 3-2 for fast card position adjustment, the direct type electric energy meter uses the direct type positioning block to move the current terminal 3-1 to the wiring position of the direct type electric energy meter, and the transformer type electric energy meter adopts The transformer positioning block moves the current terminal 3-1 to the wiring position of the transformer type electric energy meter. After the position is adjusted in place, the electric energy meter is crimped to the current terminal through the current wiring crimping handle 2 for wiring.

Figure 5-7 is a structural diagram of the voltage pulse auxiliary terminal module 4, which includes a power meter positioning block 4-1, a voltage pulse auxiliary signal installation block 4-2, a voltage connection terminal 4-4, and a pulse auxiliary signal terminal 4-5 and signal terminal crimping handle 4-3, voltage pulse auxiliary signal terminal moving module. The voltage connection terminal 4-4 and the pulse auxiliary signal terminal 4-5 are installed on the voltage pulse auxiliary signal installation block 4-2, and can be moved up and down through the operation of the signal terminal crimping handle 4-3, and the crimping handle 4 is operated when wiring is required -3 Rotate clockwise, crimp the voltage terminal 4-4 and pulse auxiliary signal terminal 4-5 on the corresponding test terminal of the electric energy meter, and only need to rotate the crimping handle 4-3 counterclockwise when removing the wires.

According to Figure 13-14, the specific movement principle is as follows: In the non-working state, the signal terminal crimping handle 4-3 is placed directly above the cross bar, and the voltage pulse assists the first link part 6 and the second link of the signal terminal moving module The front end of part 7 protrudes from the cross bar (hereinafter, the right side of Fig. 13 and 14 is the front end, and the left side is the rear end), the cross bar is fixedly connected with the rear end of the first link part, and the cross bar is connected with the first side support part 9, the second side support part 10 is adjacent to the first side support part 9, and the second side part is connected to the second link part. At this time, the second link part and the hole in the first link part are clamped The connecting part 8 is connected, and the second connecting rod part is inclined downward, and the front end of the second connecting rod part is connected with the front end of the first connecting rod part; in the working state, the signal terminal crimping handle 4-3 is rotated downward to drive The cross bar rotates 180 degrees, and the cross bar drives the first link part to rotate 180 degrees. During the rotation, the position where the first link part connects to the second link part changes from the front end of the first link part to the first link part The rear end of the second link part and the second side part are pushed back, and the first side support part and the second side support part are separated, so that the voltage pulse auxiliary signal mounting block connected with the rear end of the second link part Move backward, crimp the voltage terminal 4-4 and the pulse auxiliary signal terminal 4-5 to the corresponding test terminal of the electric energy meter.

In order to meet the test wiring requirements of the two types of electric energy meters, as shown in Figure 8-10, the voltage terminal 4-4 can be quickly inserted and removed manually to adjust the position. Type voltage connection position 4-4-1, which meets the voltage connection requirements of the direct type electric energy meter; when the transformer type electric energy meter is installed, the voltage connection terminal 4-4 is installed at the position 4-4-2 of the transformer type voltage connection position, which meets the mutual inductance The voltage wiring requirements of the instrument type electric energy meter.

The embodiments of the present invention described above are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims (6)

1. A three-phase watt-hour meter dual-purpose fast wiring test meter frame, including a test panel, and a current connection crimping handle, a current connection terminal module and a voltage pulse auxiliary terminal module positioned on the test panel, characterized in that: The current connection crimping handle crimps the electric energy meter to the current connection terminal module. The voltage pulse auxiliary terminal module includes a voltage connection terminal and a pulse auxiliary signal terminal. The voltage connection terminal and the pulse auxiliary signal terminal are installed on the voltage pulse auxiliary signal installation. block, through the signal terminal crimping handle and voltage pulse auxiliary signal terminal moving module, the voltage terminal and pulse auxiliary signal terminal are crimped on the corresponding test terminals of the electric energy meter; in the non-working state, the signal terminal crimping handle is placed on the cross bar Directly above, the front ends of the first link part and the second link part of the voltage pulse auxiliary signal terminal mobile module protrude from the crossbar, the crossbar is fixedly connected with the rear end of the first link part, and the crossbar is supported by the first side The second side support part is adjacent to the first side support part, and the second side part is connected to the second link part. At this time, the second link part and the hole in the first link part pass through the engaging part connection, the second link part is inclined downward, and the front end of the second link part is connected to the front end of the first link part; in the working state, the signal terminal crimping handle is rotated downward to drive the cross bar to rotate 180 degrees, The cross bar drives the first link part to rotate 180 degrees. During the rotation, the position where the first link part is connected to the second link part changes from the front end of the first link part to the rear end of the first link part, so that the second link part The second link part and the second side part are pushed back, the first side support part and the second side support part are separated, so that the voltage pulse auxiliary signal installation block connected to the rear end of the second link part moves backward, and the voltage wiring The terminal and the pulse auxiliary signal terminal are crimped on the corresponding test terminal of the electric energy meter. 2. A dual-purpose fast wiring test stand for a three-phase electric energy meter according to claim 1, characterized in that: the rotation of the cross bar is synchronized with the rotation of the signal terminal crimping handle, and the rotation of the first connecting rod part The rotation is synchronous with the rotation of the cross bar, and the rotation mode of the first connecting rod part is that the hole is located at the front end or the rear end of the first connecting rod part. 3. A dual-purpose fast wiring test stand for a three-phase electric energy meter according to claim 2, characterized in that: the voltage pulse auxiliary terminal module is also provided with an electric energy meter positioning block, and the electric energy meter positioning block is set The length of the card slot. 4. A dual-purpose fast wiring test stand for a three-phase watt-hour meter according to claim 1, characterized in that: the voltage terminal is a plug-in structure, and the voltage terminal is inserted when testing the direct watt-hour meter. The direct voltage connection position, when testing the transformer type electric energy meter, insert the voltage terminal into the transformer type voltage connection position. 5. A dual-purpose fast wiring test stand for a three-phase electric energy meter according to claim 1, characterized in that: the current terminal module is provided with 6 current terminals that can be moved left and right, and the direct electric energy meter The direct positioning block is used to move the current terminal to the wiring position of the direct type electric energy meter, and the transformer type electric energy meter uses the transformer positioning block to move the current terminal to the wiring position of the transformer type electric energy meter. 6. A three-phase electric energy meter dual-purpose fast wiring test stand according to claim 1, characterized in that: said pulse auxiliary signal terminals include multifunctional signal terminals, active signal terminals, reactive signal terminals, RS485 Communication terminals, alarm and trip signal terminals.