CN208255291U - A junction box body and a pluggable electric energy meter junction box - Google Patents

Abstract

The utility model relates to an electric energy meter terminal box field particularly, relates to a terminal box body and pluggable electric energy meter terminal box. The terminal box body includes: the wire inlet clamping groove and the wire outlet clamping groove are formed in two opposite sides of the base; the periphery of the cover plate is convexly provided with a first flange, and two opposite sides of the cover plate are convexly provided with positioning plates connected with the first flange; the two positioning plates are arranged on two opposite sides of the base, and the base extends into the first flange and is detachably connected with the cover plate; the bottom plate, the protruding second flange that is equipped with all around of bottom plate, the second flange can stretch into the base and with the inner wall butt of base. The wire can be conveniently connected through the wire outlet clamping groove and the wire inlet clamping groove of the base, the cover plate and the base can be positioned by the positioning plate of the cover plate, and the second flange of the bottom plate is beneficial to sealing the bottom plate and the base; the junction box body is convenient to detach and install the cover plate in the connection process of the circuit, time is saved, and extra manpower is not needed to support the cover plate and the base.

Description

A junction box body and a pluggable electric energy meter junction box

technical field

The utility model relates to the field of electric energy meter junction boxes, in particular to a junction box body and a pluggable electric energy meter junction box.

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 wire connection firm; the disassembly process of the entire junction box is complicated. time consuming.

Utility model content

The purpose of the utility model is to provide a junction box body and a pluggable electric energy meter junction box, which aims to improve the problem of time-consuming procedures in the wiring process of the existing junction box body.

The utility model provides a technical solution:

A junction box body, the junction box body includes:

The base, the opposite sides of the base are provided with incoming line card slots and outgoing line card slots;

The cover plate is provided with a first flange protruding around the cover plate, and positioning plates connected with the first flange are protruded on both sides of the cover plate; two positioning plates are arranged on opposite sides of the base, and the base extends into the first flange. A flange is detachably connected to the cover plate;

The base plate is provided with a second flange protruding around the base plate. The second flange can extend into the base and abut against the inner wall of the base.

In other embodiments of the present utility model, the above-mentioned bottom plate is also provided with ribs, and the opposite ends of the ribs are connected to the second flanges, and the ribs, the second flanges, and the bottom plate are surrounded by a mutually independent first accommodating space, and the second accommodation space; the first accommodation space and the second accommodation space correspond to the incoming line card slot and the outgoing line card slot respectively.

In other embodiments of the present utility model, the above-mentioned base is provided with a plurality of reinforcing ribs, and the plurality of reinforcing ribs are arranged at intervals in the first accommodation space and the second accommodation space.

In other embodiments of the present utility model, the above-mentioned base is provided with a plurality of incoming line slots, and the widths of the multiple incoming line slots are not completely the same; the base is provided with outgoing line slots corresponding to the plurality of incoming line slots.

In other embodiments of the present utility model, the above-mentioned base is provided with a connection hole, and the bottom plate is provided with a positioning groove, and the positioning groove corresponds to the connection hole.

The utility model also provides a technical solution:

A pluggable watt-hour meter junction box, the pluggable watt-hour meter junction box includes the above-mentioned junction box body, a connecting part, an incoming line end and an outgoing line end in electrical contact with the connecting part; the connecting part is arranged on a base, and The wire end is installed in the incoming line card slot, and the outgoing line end is installed in the outgoing line card slot.

In other embodiments of the present utility model, the above-mentioned incoming wire end includes a first insulating shell, a first conductive elastic piece disposed in the first insulating shell, one end of the first conductive elastic piece is in electrical contact with the connection part, and the first conductive elastic piece The other end is surrounded by the first insulating shell to form a wire inlet hole.

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

In other embodiments of the present utility model, the above-mentioned outlet terminal includes a second insulating shell, 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 connection part, and the other end of the second conductive elastic piece One end is surrounded by the second insulating shell to form an outlet hole.

In other embodiments of the present utility model, the above-mentioned first insulating 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.

The beneficial effects of the junction box body and the pluggable electric energy meter junction box provided by the embodiment of the utility model are:

The outgoing line card slot and the incoming line card slot of the base are conducive to the access of wires, the positioning plate of the cover plate can position the cover plate and the base, and the second flange of the bottom plate is conducive to the sealing of the bottom plate and the base; the junction box body is in the The disassembly and installation of the cover plate are very convenient during the line connection process, which saves time and does not require additional manpower to hold the cover plate against the base.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following drawings will be briefly introduced in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention. Therefore, it should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained according to these drawings without creative work.

Fig. 1 shows a schematic structural diagram 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 base provided by the embodiment of the present invention.

Fig. 3 shows a schematic structural view of the cover plate provided by the embodiment of the present invention;

Fig. 4 shows the schematic structural view of the bottom plate provided by the embodiment of the present invention;

Fig. 5 shows a schematic structural view of the incoming line terminal provided by the embodiment of the present invention;

Fig. 6 shows a schematic structural diagram of the first insulating housing provided by the embodiment of the present invention.

Icons: 100-pluggable electric energy meter junction box; 101-base; 102-incoming line card slot; 103-outgoing line card slot; 110-connection part; - shell; 1212 - pressure plate; 1213 - pressing piece; 122 - first conductive shrapnel; 123 - inlet hole; 124 - conductive sheet; 130 - outlet end; 142-positioning plate; 143-positioning hole; 150-bottom plate; 151-second flange; 152-rib; 153-first accommodation space; 154-second accommodation space;

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, 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.

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

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 terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", " The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is usually placed when the utility model product is used, or the orientation or positional relationship that is commonly understood by those skilled in the art The relationship is only for the convenience of describing the utility model and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the utility model.

In addition, the terms "first", "second", "third", 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 utility model, 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 can be A fixed 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 utility model 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 .

The pluggable electric energy meter junction box 100 includes a connection part 110, an incoming wire end 120, an outgoing wire end 130, and a junction box body (not shown in the figure). On both sides of the , the incoming wire end 120 and the outgoing wire end 130 are in electrical contact with the connecting portion 110 . The connection part 110, the wire-in terminal 120, and the wire-out terminal 130 are all arranged on the wire box body.

The box body of the wire box includes a base 101, a cover plate 140, and a bottom plate 150, and the opposite sides of the base 101 are provided with an incoming line slot 102 and an outgoing line slot 103; Installed in the incoming line card slot 102 and the outgoing line card slot 103 respectively.

Fig. 2 shows a schematic structural diagram of the base 101 provided by the embodiment of the present invention. See Figure 2.

In this embodiment, the base 101, the cover plate 140, and the bottom plate 150 are all made of insulating materials.

In this embodiment, the base 101 is provided with six incoming wire slots 102 and six outgoing wire slots 103. The six incoming wire slots 102 have two sizes, and are respectively used to accommodate one incoming wire connected to one electric wire. terminal 120, and three incoming wire terminals 120 for accommodating and connecting with three electric wires;

FIG. 3 shows a schematic structural diagram of the cover plate 140 provided by the embodiment of the present invention. See Figure 3.

In this embodiment, a first flange 141 protrudes around the cover plate 140, and two positioning plates 142 are respectively connected to opposite ends of the cover plate 140; the first flange 141 protrudes around the cover plate 140 and is aligned with the positioning The plate 142 is connected; the height of the positioning plate 142 is higher than that of the first flange 141 , and the cover plate 140 is provided with a positioning hole 143 .

The cover plate 140 is fastened with the insulating base 101, and the insulating base 101 extends into the first flange 141 protruding from the periphery of the cover plate 140, and the positioning plate 142 positions the two ends of the junction box cover plate 140 with the insulating base 101, and the cover plate 140 is connected to the insulating base 101 by screws passing through the positioning holes 143 .

The cover plate 140 is clamped by the first flange 141, and the positioning plate 142 positions the junction box cover plate 140 and the junction box body. The junction box cover 140 can be connected and fixed by supporting the junction box cover 140 with additional force.

FIG. 4 shows a schematic structural diagram of the bottom plate 150 provided by the embodiment of the present invention; please refer to FIG. 4 .

In this embodiment, a second flange 151 protrudes around the bottom plate 150 , and the second flange 151 can extend into the base 101 and abut against the inner wall of the base 101 .

Further, in this embodiment, the bottom plate 150 is also provided with a raised rib 152, the raised rib 152 is arranged in the middle of the bottom plate 150, the opposite ends of the raised rib 152 are connected with the second flange 151, the raised rib 152, the second raised rib The edge 151 and the bottom plate 150 define a first accommodation space 153 and a second accommodation space 154 which are independent of each other; the first accommodation space 153 and the second accommodation space 154 correspond to the wire inlet end 120 and the wire outlet end 130 of the junction box respectively. In other words, the first accommodating space 153 is used for accommodating the incoming wire end 120 , and the second accommodating space 154 is used for accommodating the outgoing wire end 130 .

The edge of the bottom plate 150 is provided with a positioning groove 155 , and the bottom plate 150 is positioned on the wall or the installation platform through the positioning groove 155 .

The first accommodating space 153 and the second accommodating space 154 are independent of each other, respectively accommodating the incoming wire end 120 and the outgoing wire end 130, so that one side of the incoming wire end 120 and the outgoing wire end 130 is isolated from the outside world, and dust or rainwater erosion is avoided as much as possible; The first accommodating space 153 and the second accommodating space 154 isolate the side near the installation surface of the incoming wire end 120 and the outgoing wire end 130 to avoid short circuit caused by the incoming wire end 120 and the outgoing wire end 130 .

In this embodiment, the bottom plate 150 also includes two reinforcing ribs 156, both of which are fixedly connected to the bottom plate 150, and the extension direction of the two reinforcing ribs 156 is the same as that of the convex rib 152. It is disposed in the first accommodation space 153 ; another reinforcing rib 156 is disposed in the second accommodation space 154 .

It can be understood that, in other embodiments of the present invention, the bottom plate 150 can also be provided with one or more reinforcing ribs 156 .

Based on the above, the bottom plate 150 is positioned on the wall or the installation platform through the positioning groove 155 . In this embodiment, the connecting part 110 is arranged on the insulating base 101, and the base 101 is provided with a positioning hole (not marked in the figure), and the connecting part 110 is connected to the base plate 150 by screws, and the screw passes through the connecting part 110 away from the side of the base plate 150 Extend through the positioning hole into the positioning groove 155, and then connect with the wall or the installation platform, and fix the connecting part 110 and the bottom plate 150 on the wall or the installation platform.

In this embodiment, the bottom plate 150 protrudes into the insulating base 101 and engages with the insulating base 101 , and the second flange 151 fits the inner wall of the insulating base 101 to increase the sealing between the insulating base 101 and the bottom plate 150 .

The main advantages of the junction box body provided by the embodiment of the present invention are:

The outgoing wire slot 103 and the incoming wire slot 102 of the base 101 facilitate the access of electric wires, the positioning plate 142 of the cover plate 140 can position the cover plate 140 and the base 101, and the second flange 151 of the bottom plate 150 is beneficial to the bottom plate 150. Sealing with the base 101; the disassembly and installation of the cover plate 140 of the junction box body during the line connection process is very convenient, saving time, and does not require additional manpower to hold the cover plate 140 against the base 101.

FIG. 5 shows a schematic view of the structure of the incoming wire terminal 120 provided by the embodiment of the present invention, and FIG. 6 shows a schematic view of the structure of the first insulating shell 121 provided by the embodiment of the present invention. Please refer to FIGS. 5 and 6 .

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. 5 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.

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 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 .

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 utility model, the housing 1211 may only be provided with one through hole, and the wire pressing plate 1212 may only be provided with one lower pressing piece 1213, and the wire pressing plate 1212 is connected to the second pressing piece 1213 through one lower pressing piece 1213. A conductive shrapnel 122 abuts against it.

It can be understood that, in other embodiments of the present invention, the first insulating shell 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 structures 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.

The main advantages of the pluggable electric energy meter junction box 100 provided by the embodiment of the utility model 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.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (10)

1. A junction box body, characterized in that, the junction box body comprises: The base, the opposite sides of the base are provided with an incoming line card slot and an outgoing line card slot; A cover plate, a first flange protrudes around the cover plate, and a positioning plate connected to the first flange is protruded on both sides of the cover plate; two positioning plates are arranged on the On opposite sides of the base, the base protrudes into the first flange and is detachably connected to the cover plate; The bottom plate is provided with a second flange protruding around the bottom plate, and the second flange can extend into the base and abut against the inner wall of the base. 2. The junction box body according to claim 1, wherein the bottom plate is also provided with ribs, and the opposite ends of the ribs are connected to the second flange, and the ribs, The second flange and the bottom plate enclose a first accommodation space and a second accommodation space that are independent of each other; Corresponding to the outlet card slot. 3. The junction box body according to claim 2, wherein the base is provided with a plurality of reinforcing ribs, and the plurality of reinforcing ribs are arranged at intervals in the first accommodation space and the second accommodation space Inside. 4. The junction box body according to claim 1, wherein the base is provided with a plurality of the incoming line slots, and the widths of the multiple incoming line slots are not completely the same; the base is provided with Outlet line card slots that correspond one-to-one to the plurality of incoming line card slots. 5 . The junction box body according to claim 1 , wherein the base is provided with a connection hole, and the bottom plate is provided with a positioning groove, and the positioning groove corresponds to the connection hole. 6. A pluggable watt-hour meter junction box, characterized in that, the pluggable watt-hour meter junction box comprises a junction box body and a connecting portion according to any one of claims 1-5, and the The connection part is electrically contacted with the incoming wire end and the outgoing wire end; the connecting part is arranged on the base, the incoming wire end is installed in the incoming wire slot, and the outgoing wire end is installed in the outgoing wire slot. 7. The pluggable watt-hour meter junction box according to claim 6, characterized in that, the incoming line terminal comprises a first insulating shell and a first conductive shrapnel disposed in the first insulating shell, so that 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 shell to form a wire inlet hole. 8. The pluggable electric energy meter junction box according to claim 7, characterized in that, the incoming line 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. 9. The pluggable electric energy meter junction box according to claim 6, characterized in that, the outlet end 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. 10. The pluggable electric energy meter junction box according to claim 7, 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.