CN204538480U - A kind of low-pressure metering box with wiring board - Google Patents

Abstract

The utility model discloses a kind of low-pressure metering box with wiring board, comprise insulation box and insulation box base plate, described insulation box at least comprises a master switch room, an electric energy meter room and a subscriber switch room, master switch indoor location has master switch, electric energy meter indoor are at least provided with 1 electric energy meter, each electric energy meter correspondence has a subscriber switch at subscriber switch indoor location, it is characterized in that: in described insulation box base plate, be provided with wiring board, wiring board is provided with some circuits, termination, two ends, every route road is respectively equipped with the integrated clamped nipple with wiring board, described clamped nipple is all exposed is positioned at insulation box on the insulation box backplate surface.The utility model patent arranges wiring board by adopting the conductive copper sheet combined together with insulation box, saves a large amount of shearings, the work of conducting wire and time, reduces the manufacturing cost of low-pressure metering box, improve production efficiency.

Description

A low-voltage metering box with a circuit board

technical field

The utility model relates to a low-voltage metering box, in particular to a low-voltage metering box with a circuit board.

Background technique

In the past ten years, with the rapid development of the national electric power industry, the quality requirements for various basic products in the electric power industry have become higher and higher. Since the power industry has started to implement unified bidding and procurement for various materials in recent years, higher requirements have been put forward for the standardization and versatility of various basic products in the power industry. The low-voltage metering box is an independent closed box used to protect the electric energy meter and terminal related electrical equipment, commonly known as the meter box. The production of low-voltage metering boxes is divided into two categories: metal and non-metal according to the material. In the past ten years, with the increasing demand for the transformation of urban and rural power grids, the quality of low-voltage metering boxes has gradually developed from being varied and shoddy to having basic classifications and imperfect regional technical specifications.

At present, low-voltage metering boxes all over the country are installed by hand when installing meters, switches, wires, terminals, and copper bars. Cut the wires one by one, and then arrange the wires in the prepared low-voltage metering box. Compress all components with screws, which has the following disadvantages:

(1) A large number of technicians are required to cut, install and weld the wires;

(2) All screw connections are prone to safety hazards. When the screws are loose, it is easy to cause short circuit, power failure and safety accidents;

(3) The quality of the wires used for connection is different, and there are certain potential safety hazards;

(4) The PVC insulation material used in the wire softens and deforms at about 80°C, and emits strong harmful gases. When it reaches the melting point and burns, the harmful gases are more dense, which is a potential source of air pollution;

(5) It is difficult to make a standardized low-pressure metering box.

Contents of the invention

In order to solve the above-mentioned problems in the prior art, the utility model provides a low-voltage metering box with a circuit board that replaces the wires and is integrated with the bottom plate of the low-voltage metering box, which can be produced in a standardized manner and has higher safety.

The technical scheme of the utility model is: a low-voltage metering box with a circuit board, including an insulating box body and an insulating box bottom plate, and the insulating box body includes at least one main switch room, an electric energy meter room and a user switch room , a main switch is installed in the main switch room, at least one electric energy meter is installed in the electric energy meter room, and each electric energy meter is correspondingly installed with a user switch in the user switch room, which is characterized in that: the bottom plate of the insulating box is provided with a circuit board , There are several lines on the circuit board, the lines are used to realize the non-wire connection between the main switch and the electric energy meter, the electric energy meter and the user switch, and the two ends of each line are respectively equipped with terminal joints integrally formed with the circuit board, The terminal joints are all exposed on the surface of the bottom plate of the insulating box and are located in the insulating box.

The circuit board is a conductive copper strip circuit board. The conductive copper strip circuit board is formed by stamping or die-casting a copper plate. The conductive copper strip circuit board is provided with a number of lines composed of conductive copper strips, including wires for connecting the bus. The live line incoming line of the switch and the electric energy meter, the neutral incoming line for connecting the neutral line and the electric energy meter, the live line outgoing line for connecting the electric energy meter and the user switch, and the neutral outgoing line for connecting the electric energy meter and the user switch Lines, conductive copper sheet row circuit board replaces the original wire connection, which reduces the cost of wire manufacturing, and because it is a circuit board and embedded in the bottom plate of the insulating box, its position will not change arbitrarily, which greatly reduces the risk of wires due to random changes. Short circuit and unsafe accidents caused by position or crossover.

The terminal joints are electrically connected with the main switch, electric energy meter, user switch and wires by using high-sensitivity connectors, and the connectors are used for connection without using any screws and nuts, so that the connection parts are not easy to loosen and fall off , Long-term power on will not cause short circuit, power failure and other faults.

Both the insulating box and the bottom plate of the insulating box are made of insulating composite materials such as SMC.

The beneficial effects of the utility model are: the utility model adopts the designed conductive copper strip circuit board to replace the wire, and embeds it in the bottom plate of the insulating box, so that the insulating box and the circuit board are integrated, and only the wires to be installed are exposed. The way of terminal joints makes the current single low-voltage metering box evolve into a multi-functional box with conductive copper strip circuit boards, thus saving a lot of labor and time for cutting and installing wires, and reducing the cost of low-voltage metering boxes. The manufacturing cost is lower, the production efficiency is improved, and the short circuit and unsafe accidents caused by the random change of the position or crossing of the wires are greatly reduced, and the occurrence of electric safety accidents is extremely effectively prevented and the anti-theft is greatly improved. performance.

Description of drawings

Figure 1 is a schematic diagram of the structure of the single-phase four-epitope in the embodiment of the present invention;

Figure 2 is a schematic structural view of the conductive copper strip circuit board in the embodiment of the present invention.

In the figure, 1-insulated box, 2-bottom plate of insulating box, 3-main switch, 4-electric energy meter, 5-user switch, 6-terminal connector, 7-conductive copper strip circuit board, 801-fire wire incoming line Line, 802-neutral line incoming line, 803-live line outgoing line, 804-neutral line outgoing line.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

As shown in Figures 1 and 2, a low-voltage metering box with a circuit board includes an insulating box 1 and an insulating box bottom plate 2. The insulating box includes at least a main switch room, an electric energy meter room and a user In the switch room, the main switch 3 is installed in the main switch room, at least one power meter 4 is installed in the power meter room, and each power meter 4 corresponds to a user switch 5 installed in the user switch room, and the bottom plate 2 of the insulating box is embedded There is a conductive copper sheet row circuit board 7, and several lines are arranged on the conductive copper sheet row circuit board 7, including the live wire incoming line 801 for connecting the main switch and the electric energy meter, and the zero line incoming line for connecting the zero line and the electric energy meter. Wire line 802, live wire outgoing line 803 for connecting the electric energy meter and the user switch, and zero line outgoing line 804 for connecting the electric energy meter and the user switch. Live wire incoming line 801, a general neutral incoming line 802, four live outgoing lines 803 and four neutral outgoing lines 804, wherein one live incoming line is divided into two branches which can be connected to an electric energy meter respectively, and the other two The live wire incoming lines are respectively connected to a watt-hour meter, and a total neutral line incoming line is divided into four branches, each branch is respectively connected to a watt-hour meter, correspondingly, a main switch 3, 4 is installed in the insulating box 1 There are four electric energy meters 4 and four user switches 5, and one electric energy meter corresponds to one user switch.

The two ends of each line are respectively provided with terminal joints 6 integrally formed with the conductive copper strip circuit board 7. The terminal joints 6 are all exposed on the surface of the bottom plate of the insulating box and are located in the insulating box. Among them, the live wire incoming line 801 One end terminal connector is used to connect the live wire and the main switch, and is located in the main switch room; the other end terminal connector of the live wire incoming line 801 is used to connect with the electric energy meter, and is located in the electric energy meter room; one end terminal joint of the neutral line incoming line 802 is used for connecting with zero Line connection, located in the main switch room, the terminal joints of the four branches of the neutral line incoming line 802 are respectively used to connect with the electric energy meter, located in the electric energy meter room; one end terminal joint of the live line outgoing line 803 is used to connect with the electric energy meter, located in the electric energy meter Indoors, the terminal connector at the other end of the live wire outgoing line 803 is used to connect with the user switch, and is located in the user switch room; the terminal connector at one end of the neutral line outgoing line 804 is used to connect with the electric energy meter, and is located in the electric energy meter room, and the other end terminal of the neutral line outgoing line 804 The connector is used to connect with the user switch and is located in the user switch compartment.

The terminal joint 6 is electrically connected with the main switch 3, the electric energy meter 4, the user switch 5 and the wires by using highly sensitive connectors, and the connectors are used to connect without using any screws and nuts, so that the connecting parts It is not easy to loosen and fall off, and it will not cause short circuit, power failure and other faults even if it is powered on for a long time.

The main switch is an incoming line switch or a control switch.

Both the insulating box body 1 and the insulating box bottom plate 2 are made of insulating composite materials such as SMC.

The low-voltage metering box with a circuit board includes single-phase and three-phase series low-voltage metering boxes, and at least one single-phase or three-phase electric meter box is installed.

The utility model patent has the following advantages by adopting the conductive copper strip circuit board integrated with the insulating box body:

1. The integration of the conductive copper strip circuit board and the box body not only reduces the cost of wire manufacturing, but more importantly, its position is fixed and will not change arbitrarily, which greatly reduces the short circuit caused by the random change of wire position or crossing Unsafe accidents; at the same time, the cost of producing low-voltage metering boxes is reduced.

2. The production efficiency is greatly improved. For example, for the four-table box in this embodiment, in the past, one worker could only assemble 20 sets in eight hours per shift. The new box body with circuit boards produced by the utility model patent can only be assembled by one worker. A class can assemble about 200 units, and the efficiency has been increased by more than ten times;

3. The cost of materials is greatly reduced, and there is no need to go through processes such as wire processing and cutting;

4. Because the main switch, electric energy meter, user switch, wires, etc. are connected to the terminal connectors using connectors instead of screws, so the integration degree and quality of the product are greatly improved, and the problems caused by loose screws and falling off are eliminated. safety accidents;

5. Since the circuit board replaces the wire and is buried in the box, illegal activities such as electricity theft are effectively prevented, and the line loss rate is greatly reduced.

6. Due to the standardization of the conductive copper wire row circuit board, the assembly of the low-voltage metering box can be standardized, avoiding the confusion of assembly in the past.

The utility model is described through embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, the features and embodiments may be modified to adapt a particular situation and material to the teachings of the invention without departing from the spirit and scope of the invention. Therefore, the utility model is not limited by the specific embodiments disclosed here, and all embodiments falling within the scope of the claims of this application belong to the protection scope of the utility model.

Claims (4)

1. A low-voltage metering box with a circuit board, comprising an insulating box and an insulating box bottom plate, the insulating box at least includes a main switch room, an electric energy meter room and a user switch room, and the main switch room is equipped with The main switch, at least one electric energy meter is installed in the electric energy meter room, and each electric energy meter corresponds to a user switch installed in the user switch room. A number of lines, the lines are used to realize the wire-free connection between the main switch and the electric energy meter, between the electric energy meter and the user switch, and the two ends of each line are respectively provided with terminal joints integrally formed with the circuit board, and the terminal joints are exposed On the surface of the bottom plate of the insulating box and located in the insulating box. 2. The low-voltage metering box with circuit board according to claim 1, characterized in that: said circuit board is a conductive copper sheet row circuit board, and the conductive copper sheet row circuit board is provided with a circuit board made of several conductive copper sheets. line. 3. The low-voltage metering box with a circuit board according to claim 1, characterized in that: between the terminal joint and the main switch, the electric energy meter, the user switch and the wires, the electrical performance is realized by using a highly sensitive connector. connect. 4. The low-voltage metering box with a circuit board according to claim 1, characterized in that: the insulating box body and the bottom plate of the insulating box body are both made of SMC insulating composite materials.