CN104237840A - Integrated junction device for single-phase kilowatt-hour meter inspection and electric strength test - Google Patents

Abstract

The invention relates to an integrated wiring device for single-phase electric energy meter inspection and withstand voltage test, which includes a test installation panel, a crimping mechanism installed on the front of the test installation panel from top to bottom to control the position of the electric energy meter, The electrical energy meter terminal junction box, the electrical energy test wiring module, and the withstand voltage test wiring module are slidably connected on the panel; the withstand voltage test wiring module has test wiring terminals and contact points, and the contact points protrude from the front of the test installation panel, and The module is arranged in the test installation panel above the electric energy test wiring module. The device can be used for power detection and voltage detection, and the power detection and voltage detection do not affect each other during the test.

Description

An integrated wiring device for single-phase electric energy meter inspection and withstand voltage test

technical field

The invention relates to the field of electric equipment, in particular to an integrated wiring device for single-phase electric energy meter inspection and withstand voltage test.

Background technique

The energy error accuracy test and AC withstand voltage safety test of the electric energy meter are very important in the verification work of the electric energy meter. The former is related to the measurement accuracy of the electric energy meter, and the latter is related to the safe use of the electric energy meter.

At present, the domestic withstand voltage test part and the electric energy verification part adopt the relay isolation method, which is switched according to the need during the test, but due to the small distance between the disconnected contacts of the relay used for isolation, the safe creepage during the withstand voltage test cannot be fully achieved. Due to the high test voltage, the relay is often broken down during the 4kV withstand voltage test, and the electric energy verification part of the electric energy meter is damaged, so that the test equipment cannot work normally. An isolation device for the withstand voltage and electric energy test is urgently needed to ensure the withstand voltage test It will not damage the electric energy verification part of the electric energy meter.

At the same time, when the existing device detects the electric energy meter, often due to operation errors or equipment reasons, the connection point of the electric energy meter of the fixed device is poorly connected, which affects the expected goal.

Therefore, how to design an isolating device for withstand voltage and electric energy testing, to ensure that the electric energy verification part of the electric energy meter will not be damaged during the withstand voltage test, and to ensure that the fixing device and the contacts of the electric energy meter are stable, is a problem for those skilled in the art. The problem.

Contents of the invention

The technical problem mainly solved by the invention is to provide a safe and reliable integrated wiring device for inspection and withstand voltage test when testing the electric energy meter. The device has the advantages of ensuring small wiring resistance, large safety distance during withstand voltage test, and safety and reliability.

The present invention adopts following technical scheme:

An integrated wiring device for single-phase electric energy meter inspection and withstand voltage test, including a test installation panel, the front of the test installation panel is sequentially installed with:

The crimping mechanism to control the position of the electric energy meter;

Energy meter terminal junction box slide-connected on the test mounting panel;

Power test wiring module;

The withstand voltage test wiring module; the withstand voltage test wiring module has a test wiring terminal and a contact point, and the contact point protrudes from the front of the test installation panel, and the module is arranged in the test installation panel above the electric energy test wiring module.

Preferably, the electrical energy test wiring module includes an electrical energy installation bracket, an electrical energy terminal and a guide post; the electrical energy installation bracket is installed on the test installation panel through fasteners.

Preferably, the electric energy meter terminal junction box includes a junction box installation bracket, a junction box terminal and a guide slider; the electric energy meter terminal junction box is installed on the test installation panel through the guide slider.

Preferably, the electric energy meter terminal junction box is also provided with a connecting hole adapted to the guide column.

Preferably, the electric energy meter terminal junction box has a first contact surface and a second contact surface, the first contact surface is located inside the electric energy meter terminal junction box, and the first contact surface is adapted to the contact point.

Preferably, the second contact surface is located on the bottom surface of the electric energy meter terminal junction box, and the second contact surface is adapted to the electric energy connection terminal.

Preferably, the test connection terminal is installed on the reverse side of the test panel.

Preferably, the crimping mechanism includes an electric cylinder installed on the opposite side of the test installation panel and a sliding bottom plate installed on the test installation panel. The screw rod of the electric cylinder is connected with the sliding bottom plate through a connecting block to drive the sliding bottom plate to move up and down.

Preferably, the guide column is provided with a spring.

The beneficial effect of the present invention is that: withstand voltage test and electric energy test can be carried out, and high test voltage breakdown relay will not occur during the test process, which will damage the electric energy verification part of the electric energy meter; at the same time, the contact between the device and the electric energy meter is stable, Effectively guarantee work progress.

Description of drawings:

Fig. 1 is the front structural representation of the present invention;

Fig. 2 is the reverse structure schematic diagram of the present invention;

Fig. 3 is the structural representation of the electric energy meter terminal junction box among the present invention;

Fig. 4 is the bottom surface structural representation of electric energy meter terminal junction box among the present invention;

Fig. 5 is the structural representation of electric energy test wiring module in the present invention;

Fig. 6 is the front assembly diagram of the withstand voltage test wiring module in the present invention;

Fig. 7 is the assembly diagram of the reverse side of the withstand voltage test wiring module in the present invention;

Fig. 8 is a schematic diagram of the connection between the electric energy meter terminal junction box and the electric energy test wiring module when carrying out withstand voltage test in the present invention;

Fig. 9 is a schematic diagram of connection between the electric energy meter terminal junction box and the withstand voltage test wiring module when carrying out the withstand voltage test in the present invention;

Fig. 10 is a schematic diagram of the connection between the electric energy meter terminal junction box and the electric energy test wiring module when performing electric energy testing in the present invention;

Fig. 11 is a schematic diagram of the connection between the electric energy meter terminal junction box and the withstand voltage test wiring module when the electric energy test is performed in the present invention;

Fig. 12 is a state diagram when the present invention carries out withstand voltage test;

Fig. 13 is a state diagram when the present invention carries out electric energy test;

Among them: 1. Test installation panel, 2. Crimping mechanism, 2-1. Electric cylinder, 2-2. Connection block, 2-3. Sliding bottom plate, 3. Electric energy meter terminal junction box, 3-1. Junction box installation Bracket, 3-2, junction box terminal block, 3-3, first contact surface, 3-4, second contact surface, 3-5 guide slider, 4, electric energy test wiring module, 4-1, electric energy installation bracket , 4-2, power terminal, 4-3, guide column, 5, withstand voltage test wiring module, 5-1, test terminal, 5-2, contact point, 6, single-phase electric energy meter.

Detailed ways:

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiment 1: a kind of single-phase watt-hour meter inspection, integrated wiring device for withstand voltage test, its structure as shown in Figure 1-7, comprises test installation panel 1, and the front of this test installation panel is successively installed with :

The crimping mechanism 2 that controls the position of the electric energy meter 6;

Electric energy meter terminal junction box 3 slidingly connected on the test installation panel 1;

Electric energy test wiring module 4;

A withstand voltage test wiring module 5; the withstand voltage test wiring module 5 has a test terminal 5-1 and a contact point 5-2, and the contact point 5-2 protrudes from the front of the test installation panel 1, and the withstand voltage test wiring module 5 is arranged in the test installation panel 1 above the electrical energy test wiring module 4 .

The electric energy test wiring module 4 includes an electric energy installation bracket 4-1, an electric energy connection terminal 4-2 and a guide column 4-3, and the guide column 4-3 is covered with a spring, which can better support the electric energy meter terminal junction box 3; The electric energy installation bracket 4-1 is installed on the test installation panel 1 by screws.

Described electric energy meter terminal junction box 3 comprises junction box mounting bracket 3-1, junction box terminal block 3-2 and guide slider 3-5; Electric energy meter terminal junction box 3 is installed on the test installation panel by guide slider 3-5 1 on. Correspondingly, the test installation panel 1 is provided with a guide chute compatible with the guide slider 3-5.

The electric energy meter terminal junction box 3 is also provided with a connecting hole adapted to the guide column 4-3.

The electric energy meter terminal junction box 3 has a first contact surface 3-3 and a second contact surface 3-4, the first contact surface 3-3 is located inside the electric energy meter terminal junction box 3, and the first contact surface 3-3 Compatible with contact point 5-2.

The second contact surface 3-4 is located on the bottom surface of the electric energy meter terminal junction box 3, and the second contact surface 3-4 is adapted to the electric energy connection terminal 4-2.

The test connection terminal 5 - 1 is installed on the reverse side of the test panel 1 .

The crimping mechanism 2 includes an electric cylinder 2-1 installed on the opposite side of the test installation panel 1 and a sliding base plate 2-3 installed on the test installation panel 1. The screw rod of the electric cylinder 2-1 is connected to the The sliding bottom plates 2-3 are connected to drive the sliding bottom plates 2-3 to move up and down.

As shown in Fig. 8 and Fig. 9, during the withstand voltage test, the electric energy meter terminal junction box 3 is completely disconnected from the electric energy test junction module 4, and the electric energy meter terminal junction box 3 is connected to the withstand voltage test junction module 5.

As shown in Figure 12, when the device is used in the withstand voltage test, the single-phase electric energy meter 6 is first connected to the sliding bottom plate 2-3 through fasteners, and then the electric cylinder 2-1 is moved downward to crimp the single-phase electric energy Table 6, make the test terminal of the single-phase watt-hour meter 6 contact and connect with the junction box terminal 3-2 of the watt-hour meter terminal junction box 3, and control the crimping stroke at the same time so that the watt-hour meter terminal junction box 3 stops at the withstand voltage test position, so that The first contact surface 3-3 of the electric energy meter terminal junction box 3 is connected to the contact point 5-2 of the withstand voltage test wiring module 5, and the test line is connected to the test connection terminal 5-1, and the withstand voltage performance test can be performed at this time .

When conducting the withstand voltage test, the distance between the bottom surface of the electric energy meter terminal junction box 3 and the top surface of the electric energy test wiring module is more than 8mm, so that the electric energy test part and the withstand voltage test part can be completely isolated.

As shown in Fig. 10 and Fig. 11, during the electric energy test, the electric energy meter terminal junction box 3 is completely disconnected from the withstand voltage test junction module 5, and the electric energy meter terminal junction box 3 is connected to the electric energy test junction module 4.

As shown in Figure 13: after the withstand voltage test is over, the electric cylinder 2-1 is controlled to continue to crimp the single-phase electric energy meter 6 downward, so that the junction box terminal 3-2 of the electric energy meter terminal junction box 3 passes through the second contact surface 3- 4. Connect to the power terminal 4-2 of the power test wiring module 4, and then connect the test line to the power test wiring module 4 to test the power performance.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and characteristics disclosed herein.

Claims (9)

1. An integrated wiring device for single-phase watt-hour meter inspection and withstand voltage test, which is characterized in that it includes a test installation panel, and the front of the test installation panel is sequentially installed with: The crimping mechanism to control the position of the electric energy meter; Energy meter terminal junction box slide-connected on the test mounting panel; Power test wiring module; The withstand voltage test wiring module; the withstand voltage test wiring module has a test wiring terminal and a contact point, and the contact point protrudes from the front of the test installation panel, and the module is arranged in the test installation panel above the electric energy test wiring module. 2 . The integrated wiring device according to claim 1 , wherein the electrical energy test wiring module comprises an electrical energy installation bracket, an electrical energy terminal and a guide column; the electrical energy installation bracket is mounted on the test installation panel through fasteners. 3. The integrated wiring device according to claim 2, characterized in that: the electric energy meter terminal junction box includes a junction box mounting bracket, a junction box terminal and a guide slider; the electric energy meter terminal junction box is installed through the guide slider On the test installation panel. 4 . The integrated wiring device according to claim 3 , wherein the electric energy meter terminal junction box is further provided with a connection hole matching the guide column. 5. The integrated wiring device according to claim 3, characterized in that: the electric energy meter terminal junction box has a first contact surface and a second contact surface, the first contact surface is located inside the electric energy meter terminal junction box, and The first contact surface is adapted to the contact point. 6. The integrated wiring device according to claim 5, wherein the second contact surface is located on the bottom surface of the electric energy meter terminal junction box, and the second contact surface is adapted to the electric energy connection terminal. 7. The integrated wiring device according to any one of claims 3-6, wherein the test wiring terminal is installed on the reverse side of the test panel. 8. The integrated wiring device according to claim 7, characterized in that: the crimping mechanism includes an electric cylinder installed on the opposite side of the test installation panel and a sliding bottom plate installed on the test installation panel, and the screw rod of the electric cylinder passes through A connecting block is connected with the sliding bottom plate to drive the sliding bottom plate to move up and down. 9. The integrated wiring device according to claim 7, characterized in that: the guide column is provided with a spring.