CN108957070A - A kind of plug type connection box of electric energy meter box and electric energy metering device - Google Patents

Abstract

The present invention relates to connection box of electric energy meter box fields, in particular to a kind of plug type connection box of electric energy meter box and electric energy metering device.Plug type connection box of electric energy meter box includes interconnecting piece, the end of incoming cables being in electrical contact with interconnecting piece, leading-out terminal；End of incoming cables includes the first insulation shell, is set to intracorporal first electroconductive elastic sheet of the first insulation shell, and first electroconductive elastic sheet one end and interconnecting piece are in electrical contact, and the other end of the first electroconductive elastic sheet and the first insulation shell enclose and be set as entrance hole.Electric wire is connect by plug type connection box of electric energy meter box by way of plugging route with end of incoming cables, is replaced the connection type in the prior art tightening and unclamping screw connection electric wire and connect with end of incoming cables, the time is saved, convenient for operation.First insulation shell is made up of insulating materials, electric wire insertion entrance hole, safer during plug electric wire.End of incoming cables provided in this embodiment has the first insulation shell, avoids the risk of hot line job.

Description

A pluggable electric energy meter junction box and electric energy metering device

technical field

The invention relates to the field of electrical energy meter junction boxes, in particular to a pluggable electrical energy meter junction box and an electrical energy metering device.

Background technique

The junction box has the function of protecting personal safety and connecting wires. When the electric energy meter is newly installed or replaced, it is first necessary to loosen the screws one by one, then connect the wires, and finally re-tighten the screws to make the wires connected firmly; There are many junction boxes with as many as 40 or 50 screws. It takes a long time to install or replace, and the hands of the on-site operators are prone to fatigue, and the entire construction is time-consuming and laborious.

Contents of the invention

The purpose of the present invention is to provide a pluggable electrical energy meter junction box and an electrical energy metering device, aiming at improving the problem that the existing junction box is time-consuming and difficult to operate during the wiring process.

The invention provides a technical solution:

A pluggable watt-hour meter junction box, the pluggable watt-hour meter junction box includes a connecting part, an incoming line end and an outgoing line end that are in electrical contact with the connecting part; For the first conductive elastic piece in the insulating housing, one end of the first conductive elastic piece is in electrical contact with the connecting portion, and the other end of the first conductive elastic piece is surrounded by the first insulating housing to form a wire inlet hole.

In other embodiments of the present invention, the above-mentioned wire-entry end further includes a conductive sheet, the conductive sheet is disposed inside the first insulating housing, and opposite ends of the conductive sheet are in contact with the first conductive elastic sheet.

In other embodiments of the present invention, the above-mentioned outlet end includes a second insulating shell, a second conductive elastic piece disposed in the second insulating shell, one end of the second conductive elastic piece is in electrical contact with the connection portion, and the other end of the second conductive elastic piece It is surrounded by the second insulating shell to form an outlet hole.

In other embodiments of the present invention, the first insulating shell and/or the second insulating shell are detachably connected to the connection part.

In other embodiments of the present invention, the above-mentioned first insulating housing includes a housing and a wire clamping plate, the housing is provided with a through hole, and the wire clamping plate can extend into the through hole and abut against the first conductive elastic piece.

In other embodiments of the present invention, the above-mentioned first insulative housing includes a housing, and a clamping plate rotatably connected to the housing. The housing is provided with a through hole, and the clamping plate can extend into the through hole and abut against the first conductive elastic piece.

In other embodiments of the present invention, the diameter of the above-mentioned wire inlet hole is 4-5mm.

In other embodiments of the present invention, the above-mentioned junction box of the pluggable electric energy meter includes a plurality of incoming wire terminals and a plurality of incoming wire terminals.

In other embodiments of the present invention, the above-mentioned pluggable electric energy meter junction box also includes an insulating base and an insulating box cover, the connecting part, the incoming line terminal and the outgoing line end are all installed on the base, and the insulating box cover is detachably connected to the insulating base. .

The present invention also provides a technical solution:

An electric energy metering device comprises the above-mentioned pluggable electric energy meter junction box.

The beneficial effects of the pluggable electric energy meter junction box and the electric energy metering device provided by the embodiment of the present invention are:

The wire inlet hole is used to connect wires, the first conductive shrapnel and the first insulating shell are used to adjust the size of the wire inlet hole, and the wire can be connected to the wire inlet end after being inserted into the wire inlet hole; The electric wire is connected with the incoming wire end by means of a circuit, which replaces the connection method of tightening and loosening screws to connect the electric wire and the incoming wire end in the prior art, which saves time and is easy to operate.

The first insulating shell is made of insulating material, and the electric wire is inserted into the wire inlet hole, so that the process of plugging and unplugging the electric wire is safer. Tightening and loosening conductive screws in the prior art is easy to touch by mistake during live operation, and there is a safety risk of ginseng. The wire inlet end provided by this embodiment has a first insulating shell, which avoids the risk of live operation.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and thus It should be regarded as a limitation on the scope, and those skilled in the art can also obtain other related drawings based on these drawings without creative work.

Fig. 1 shows a schematic structural view of a pluggable electric energy meter junction box provided by an embodiment of the present invention;

Fig. 2 shows a schematic structural view of the incoming line end provided by the embodiment of the present invention;

Fig. 3 shows a schematic structural diagram of a first insulating case provided by an embodiment of the present invention;

Fig. 4 shows a schematic structural diagram of a wire crimping plate provided by an embodiment of the present invention.

Icons: 100-pluggable electric energy meter junction box; 101-insulation base; 110-connection part; Pressed piece; 122-first conductive shrapnel; 123-wire inlet hole; 124-conductive sheet; 130-outlet terminal.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "inner", "outer" and so on is based on the orientation or positional relationship shown in the drawings, or the usual orientation of the inventive product during use. The orientation or positional relationship, or the orientation or positional relationship commonly understood by those skilled in the art, is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, in order to Specific orientation configurations and operations, therefore, are not to be construed as limitations on the invention.

In addition, the terms "first", "second", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should also be noted that, unless otherwise specified and limited, the terms "setting", "installation", "connection" and "connection" should be understood in a broad sense, for example, it may be fixed The connection can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

Example

Fig. 1 shows a schematic structural diagram of a pluggable electric energy meter junction box 100 provided by an embodiment of the present invention. Referring to FIG. 1 , this embodiment provides a pluggable electric energy meter junction box 100 .

In detail, in this embodiment, the pluggable electric energy meter junction box 100 includes a connecting portion 110, an incoming wire end 120, and an outgoing wire end 130, and the incoming wire end 120 and the outgoing wire end 130 are respectively arranged on opposite sides of the connecting portion 110. , both the wire-in terminal 120 and the wire-out terminal 130 are in electrical contact with the connecting portion 110 .

FIG. 2 shows a schematic structural diagram of the wire inlet terminal 120 provided by the embodiment of the present invention, please refer to FIG. 2 .

The incoming terminal 120 includes a first insulating shell 121 and a first conductive elastic piece 122 disposed in the first insulating shell 121. One end of the first conductive elastic piece 122 is in electrical contact with the connecting portion 110, and the other end of the first conductive elastic piece 122 is in contact with the connecting portion 110. The first insulating shell 121 is surrounded by a wire entry hole 123 .

The wire inlet hole 123 is used to connect wires, the first conductive elastic piece 122 and the first insulating shell 121 are used to adjust the size of the wire inlet hole 123, and the wire can be connected to the wire inlet terminal 120 by inserting the wire inlet hole 123; pluggable electric energy The meter junction box 100 connects the wires to the wire inlet 120 by plugging and unplugging the wires, replacing the connection method of tightening and loosening screws to connect the wires to the wire inlet 120 in the prior art, which saves time and is easy to operate.

In addition, the first insulating shell 121 is made of insulating material, and the wires are inserted into the wire inlet holes 123 , so that the process of plugging and unplugging the wires is safer. In the prior art, screwing and loosening conductive screws is easy to accidentally touch the metal screws exposed on the surface of the junction box during live operation, posing personal safety risks. The wire inlet terminal 120 provided in this embodiment has a first insulating shell 121, which avoids the risk of live operation.

Please refer to FIG. 2 again. In this embodiment, the wire inlet 120 further includes a conductive piece 124, which is arranged inside the first insulating shell 121, and the opposite ends of the conductive piece 124 are connected to the first conductive elastic piece 122. Abut.

The opposite ends of the conductive sheet 124 all abut against the first conductive elastic sheet 122, and the connecting part 110 is provided with a conductive rod (not shown in the figure), and the conductive rod extends between the conductive sheet 124 and the first conductive elastic sheet 122, so that the conductive rod The electrical conductivity with the first conductive elastic piece 122 is better.

In addition, the electric wire is inserted into the wire inlet hole 123 to make electrical contact with the first conductive elastic piece 122 , and the wire is inserted into the wire inlet hole 123 to make electrical contact with the conductive piece 124 and the first conductive elastic piece 122 at the same time; so that the electrical conductivity of the wire inlet terminal 120 is better.

FIG. 3 shows a schematic structural diagram of the first insulating casing 121 provided by an embodiment of the present invention, please refer to FIG. 3 .

Further, in this embodiment, the first insulating housing 121 includes a housing 1211 and a wire pressing plate 1212, the wire pressing plate 1212 is rotatably connected to the housing 1211, the housing 1211 has a through hole (not marked in the figure), and the wire pressing plate 1212 can extend into the through hole and abut against the first conductive elastic piece 122 .

In detail, the wire pressing plate 1212 can extend into the housing 1211 through the above-mentioned through hole, the wire pressing plate 1212 abuts against the first conductive elastic piece 122, the wire pressing plate 1212 is rotatably connected with the housing 1211, and the wire pressing plate 1212 is pressed down to press The shrapnel is beneficial for the electric wire to extend into the wire inlet hole 123 . Further, when the texture of the wire is relatively soft, directly insert the wire into the wire inlet hole 123, the wire may not be able to squeeze the first conductive elastic piece 122 into the wire inlet hole 123, and press the wire pressing plate 1212 to squeeze the first conductive elastic piece 122. The elastic piece 122 extends the electric wire into the wire inlet hole 123 , loosens the wire pressing plate 1212 , and the elastic action of the first conductive elastic piece 122 fixes the wire and the wire inlet hole 123 .

FIG. 4 shows a schematic structural diagram of the wire crimping plate 1212 provided by the embodiment of the present invention, please refer to FIG. 4 .

In this embodiment, the wire pressing plate 1212 is integrated with the housing 1211. The housing 1211 is provided with two through holes. hole and abuts against the first conductive elastic sheet 122 .

It should be noted that, in other embodiments of the present invention, the housing 1211 may only be provided with one through hole, and the wire pressing plate 1212 may only be provided with one pressing piece 1213, and the pressing plate 1212 is connected to the first pressing piece 1213 through one pressing piece 1213. The conductive elastic piece 122 abuts against it.

It can be understood that, in other embodiments of the present invention, the first insulating housing 121 may also only include the shell 1211 , and the wire crimping plate 1212 may not be provided.

Please refer to FIG. 2 again. In this embodiment, the wire inlet hole 123 is square, and the distance between the diagonal lines of the wire inlet hole 123 is 4.5mm.

Since the diagonal distance of the wire inlet 123 is 4.5mm, only one wire with a cross-sectional area of 2.5mm ² -4mm ² can be inserted into one wire inlet 123 . Because of the setting of the cross-sectional size of the wire inlet 123, two wires cannot be inserted into one wire inlet 123 at the same time. The prior art adopts fastening screws to connect wires, and multiple wires can be inserted at the same time. Compared with the prior art, the pluggable electric energy meter junction box 100 provided by this embodiment avoids unauthorized wiring in the terminal power utilization link, etc. The hidden danger of electricity theft.

In other embodiments of the present invention, the wire inlet hole 123 can also be set in other shapes according to the first insulating shell 121 , such as circular, elliptical or other irregular shapes. Correspondingly, the wire inlet hole 123 can also be set to other sizes, preferably, the diameter of the circular wire inlet hole 123 is 4-5 mm. Alternatively, the farthest distance between the inner walls in the cross-section of the wire inlet 123 is 4-5mm, so that the wire inlet 123 can only accommodate one wire and cannot accommodate two wires.

In this embodiment, the structure of the outgoing line end 130 is the same as that of the incoming line end 120 , and the outgoing line end 130 and the incoming line end 120 are arranged symmetrically. In other embodiments of the present invention, the structure of the wire outlet 130 and the wire inlet 120 may also be different.

The outlet terminal 130 includes a second insulating shell and a second conductive elastic piece arranged in the second insulating shell. One end of the second conductive elastic piece is in electrical contact with the connecting portion 110, and the other end of the second conductive elastic piece is surrounded by the second insulating shell. into the outlet hole.

In this embodiment, both the outgoing line end 130 and the incoming line end 120 are detachably connected to the connecting part 110. repair. In other embodiments of the present invention, the wire outlet 130 and the wire inlet 120 may also be fixedly connected to the connecting portion 110 .

In this embodiment, the pluggable electric energy meter junction box 100 includes a plurality of input terminals 120 and a plurality of output terminals 130 . A plurality of incoming wire ends 120 and a plurality of incoming wire ends 120 are all connected to the connection part 110 , and a plurality of incoming wire ends 120 are set independently.

In detail, the pluggable watt-hour meter junction box 100 includes four sets of voltage inlet terminals 120 and outlet terminals 130 for connecting the three-phase voltage A phase, B phase, C phase and N phase respectively, and the voltage input terminals 120 and The voltage outlet terminals 130 are insulated from each other.

The pluggable watt-hour meter junction box 100 includes three sets of current inlet terminals 120 and current outlet terminals 130 for connecting the three-phase current A phase, B phase, and C phase respectively, and each group of current inlet terminals 120 and current outlet terminals Ends 130 communicate with each other.

In this embodiment, the pluggable electricity meter junction box 100 further includes an insulating base 101 and an insulating box cover. The connection part 110 , the wire-in terminal 120 and the wire-out terminal 130 are all installed on the base insulation 101 , and the insulation box cover is detachably connected to the insulation base 101 .

The insulating base 101 fixes the pluggable watt-hour meter junction box 100 at an installation position such as a wall, and the insulating box cover prevents the connection part 110, the incoming line terminal 120 and the outgoing line terminal 130 from accumulating dust.

The main advantages of the pluggable electric energy meter junction box 100 provided by the embodiment of the present invention are:

The wire inlet hole 123 is used to connect wires, the first conductive elastic piece 122 and the first insulating shell 121 are used to adjust the size of the wire inlet hole 123, and the wire can be connected to the wire inlet terminal 120 by inserting the wire inlet hole 123; pluggable electric energy The meter junction box 100 connects the electric wires to the incoming wire end 120 by means of a plug-in connection, replacing the connection method of tightening and loosening screws to connect the electric wires to the incoming wire end 120 in the prior art, which saves time and is easy to operate.

In addition, the first insulating shell 121 is made of insulating material, and the wires are inserted into the wire inlet holes 123 , so that the process of plugging and unplugging the wires is safer. In the prior art, tightening and loosening the conductive screws is easy to accidentally touch during live operation, and there is a risk of personal safety. The wire inlet 120 provided in this embodiment has a first insulating shell 121, which avoids the risk of live operation.

The present invention also provides an electric energy metering device, which includes the above-mentioned pluggable electric energy meter junction box 100 . Electric energy metering device is a meter used to measure and record power generation, power supply (mutual supply), plant power consumption, line loss power and user power consumption.

Further, the electric energy metering device also includes an electric energy meter and a measuring transformer, both of which are connected to the pluggable electric energy meter junction box 100 .

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A pluggable watt-hour meter junction box, characterized in that, the pluggable watt-hour meter junction box includes a connecting portion, an incoming wire end and an outgoing wire end in electrical contact with the connecting portion; the incoming wire The end includes a first insulating shell, a first conductive elastic piece arranged in the first insulating shell, one end of the first conductive elastic piece is in electrical contact with the connecting part, and the other end of the first conductive elastic piece is in contact with the The first insulating shell is surrounded by a wire inlet hole. 2. The pluggable watt-hour meter junction box according to claim 1, wherein the wire inlet terminal further comprises a conductive sheet, the conductive sheet is arranged inside the first insulating housing, and the Both opposite ends of the conductive piece abut against the first conductive elastic piece. 3. The pluggable watt-hour meter junction box according to claim 1, wherein the outlet terminal comprises a second insulating shell, a second conductive shrapnel arranged in the second insulating shell, the One end of the second conductive elastic piece is in electrical contact with the connecting portion, and the other end of the second conductive elastic piece is surrounded by the second insulating shell to form a wire outlet hole. 4. The pluggable electric energy meter junction box according to claim 3, characterized in that, the first insulating shell and/or the second insulating shell are detachably connected to the connecting portion. 5. The pluggable electric energy meter junction box according to claim 1, characterized in that, the first insulating housing comprises a housing and a crimping plate rotatably connected to the housing, and the housing is provided with a through hole , the clamping plate can extend into the through hole and abut against the first conductive elastic piece. 6. The pluggable electric energy meter junction box according to claim 1, characterized in that, the first insulating housing includes a shell and a pressure plate, the shell is provided with a through hole, and the pressure plate can extend into the through hole and abut against the first conductive elastic piece. 7. The pluggable electric energy meter junction box according to claim 1, wherein the diameter of the wire inlet hole is 4mm-5mm. 8. The pluggable electric energy meter junction box according to claim 1, characterized in that, the pluggable electric energy meter junction box comprises a plurality of said incoming wire terminals and a plurality of said outgoing wire ends. 9. The pluggable watt-hour meter junction box according to claim 1, characterized in that, the pluggable watt-hour meter junction box also includes an insulating base, an insulating box cover, the connecting part, the incoming line The end and the outlet end are installed on the base, and the insulating box cover is detachably connected to the insulating base. 10. An electric energy metering device, characterized in that the electric energy metering device comprises the pluggable electric energy meter junction box according to any one of claims 1-9.