CN215812963U - Integrated terminal base of single-phase electric energy meter - Google Patents

Abstract

The utility model discloses an integrated terminal seat of a single-phase electric energy meter, which comprises an upper terminal row, a lower terminal row and a fire wire terminal assembly, wherein the fire wire terminal assembly comprises a plurality of fire wire terminals, and each fire wire terminal is provided with a wire inserting hole seat and a connecting sheet; the live wire terminal assembly further comprises a residual current transformer, an arc monitoring coupler and a manganin shunt, and the connecting sheet is electrically connected with the residual current transformer, the arc monitoring coupler and the manganin shunt; the lower terminal row is of an insulating shell structure and is provided with an assembly blind groove, a wire inserting hole is formed in the outer side of the assembly blind groove, a fire wire terminal in the fire wire terminal assembly is fixedly inserted into the wire inserting hole at the position of the assembly blind groove, and the upper terminal row is integrally pressed in the assembly blind groove and limits the position of the fire wire terminal in the lower terminal row. The utility model has the advantages of simple process, stability, firmness, safe use, low production cost, high assembly efficiency and good assembly stability.

Description

Integrated terminal base of single-phase electric energy meter

Technical Field

The utility model relates to an ammeter shell in the intelligent ammeter technology, in particular to a single-phase electric energy meter integrated terminal base with better sealing performance.

Background

The electric meter is an electric energy meter for short, is an instrument for measuring electric energy, is also called an electric meter, a fire meter, an electric energy meter, a kilowatt hour meter and sometimes also refers to an instrument for measuring various electric quantities, and is widely applied to daily life of people.

Generally, a terminal block is generally provided in a smart meter in the prior art to facilitate quick connection of the meter, and a traditional connection method is to connect a live wire to a fixed contact pin of the terminal block for the meter, and adjust the positions of a sliding contact pin and the fixed contact pin by sliding the sliding contact pin to adapt to bottom jacks of different meters. And current terminal seat for ammeter adopts integral type inserts design more, but current terminal seat design is too simple, and the waterproof level of structure is low, is difficult to satisfy IP54 or higher waterproof level, oozes water easily. And the fastener is easy to loosen under long-term work, and the reliability is not high. The situation that the insert falls off is easily generated in the using process, power supply faults are caused, and the risk of electric shock exists in the subsequent using process.

SUMMERY OF THE UTILITY MODEL

The utility model provides an integrated terminal base of a single-phase electric energy meter, which can be used for overcoming the defects in the technical background.

The technical problem solved by the utility model is realized by adopting the following technical scheme:

the integrated single-phase electric energy meter comprises a terminal base, a terminal base and a terminal assembly, wherein the terminal base comprises an upper terminal strip, a lower terminal strip and a fire wire terminal assembly; the hot wire terminal assembly comprises a plurality of hot wire terminals arranged in parallel, each hot wire terminal comprises a wire inserting hole seat with a pressing unit, a connecting sheet is formed at the tail end of each hot wire terminal, the hot wire terminal assembly further comprises a residual current transformer and an arc monitoring coupler, a manganin shunt is arranged beside the side of the residual current transformer and the side of the arc monitoring coupler, and the connecting sheet is electrically connected with the residual current transformer, the arc monitoring coupler and the manganin shunt; the lower terminal row is of an insulating shell structure and is provided with an assembly blind groove, plug holes matched with the number of the fire wire terminals are formed in the outer side of the assembly blind groove, the fire wire terminals in the fire wire terminal assembly are inserted into the plug holes at the assembly blind groove positions and are fixed in position through a fixing support, and the upper terminal row is integrally pressed in the assembly blind groove and limits the positions of the fire wire terminals in the lower terminal row.

As a further limitation, the fixing support is further provided with a connecting unit for detachably connecting the integrated terminal base and the meter casing, and the connecting unit is one or a combination of a fastener, a plug connector and a threaded connector.

As a further limitation, the upper surface of the fire wire terminal is a plane, and a tooth-shaped rough texture is formed on the plane; the lower surface of the upper terminal row is a plane matched with the upper surface of the fire wire terminal, and can be attached to the upper surface of the fire wire terminal after being pressed into the assembly blind groove.

By way of further limitation, a mica paper lining is attached to the lower surface of the upper terminal block.

As a further limitation, a reinforcing pad is formed on the upper terminal row at a position corresponding to a position between the two fire wire terminals, and the reinforcing pad is integrally formed with the upper terminal row.

By way of further limitation, the compression unit is a screw that has been subjected to a treatment that exhibits galvanization.

As a further limitation, the upper terminal row and the lower terminal row are embedded with a sealing structure at the outer edge gap of the pressing position.

Has the advantages that: the integrated terminal block of the single-phase electric energy meter can effectively meet the overall strength and assembly requirements of products while not influencing the basic structure of standard requirements, can effectively enhance the safety of the products, and improves the assembly efficiency.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.

Fig. 2 is a detail view of the construction of the fire wire terminal assembly of fig. 1.

Wherein: 1. a live terminal assembly; 2. fixing a bracket; 3. an upper terminal row; 4. fixing the eye-splice; 5. a lower terminal row; 6. a wire insertion hole; 7. a reinforcing filler block; 8. a compression screw; 9. an insulating rubber seal; 11. an arc monitoring coupler; 12. a manganese-copper shunt; 13. a residual current transformer; 14. connecting sheets; 15. a compression screw hole; 16. a wire plugging hole seat; 17. and a fire wire terminal.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further explained below by combining the specific drawings.

Referring to fig. 1 and 2, in this embodiment, the integrated terminal block is specially used for a single-phase electric energy meter, and the overall structure of the integrated terminal block is as shown in fig. 1, and the integrated terminal block includes an upper terminal row 3, a lower terminal row 4, a fire wire terminal assembly 1 and a fixing bracket 2, where the fixing bracket 2 is used to fix the positions of the lower terminal row 4 and the fire wire terminal assembly 1, and a plugging interface is further disposed on the upper portion of the fixing bracket 2, so that the integrated terminal block is connected and assembled at the connection position of the single-phase electric energy meter through the plugging interface on the upper portion of the fixing bracket 2.

The live wire terminal assembly 1 is assembled at the lower part of the fixed bracket 2, the structure of which is shown in fig. 2, in the embodiment, the live wire terminal assembly 1 comprises four live wires 17 arranged side by side, the four live wires 17 are identical in structure and each comprise a plug wire hole seat 16 and a connecting part connected with the plug wire hole seat 16, a live wire is inserted into the plug wire hole seat 16 and is pressed and fixed by installing a compression screw 8 as a compression unit at the position of a compression screw hole 15, a connecting piece 14 is respectively connected with the rear ends of the connecting parts connected with the plug wire hole seats 16, the connecting piece 14 is provided with an extending end at the rear part, the live wire terminal assembly 1 is provided with an arc monitoring coupler 11 and a residual current transformer 13 which are arranged in sequence in the mode shown in fig. 2 at the position corresponding to the extending section of the connecting piece 14, the arc monitoring coupler 11 and the residual current transformer 13 are arranged relatively fixed, and a manganin shunt 12 is arranged beside the arc monitoring coupler 11 and the residual current transformer 13.

The connecting sheets 14 at the rear parts of the four live wire terminals 17 are electrically connected with the residual current transformer 13, the arc monitoring coupler 11 and the manganin shunt 12.

In the present exemplary embodiment, four hot wire terminals 17 are inserted into lower terminal row 5 at the location of plug-hole seats 16, while lower terminal row 5 is provided with four plug-hole openings 6 matching lower terminal row 5. The lower terminal row 5 has a box-shaped blind slot with an open upper portion, which corresponds to the size of the four plug wire holes 6, and the four plug wire holes 6 correspond to the four plug wire terminals 17 after the four plug wire terminals 17 are fitted into the box-shaped blind slot of the live wire terminal assembly 1, and the corresponding areas of the residual current transformer 13, the arc monitoring coupler 11 and the manganin shunt 12 are fixed in position by the fixing bracket 2.

The upper terminal block 3 is used for fixing the positions of the four fire wire terminals 17 at the upper part of the box-shaped blind groove position of the lower terminal block 5 after the fire wire terminal assembly 1 is installed in the lower terminal block 5. For the convenience of assembly, in the present embodiment, the upper surface of the fire wire terminal 17 is a plane, and a tooth-shaped rough texture is formed on the plane area; the lower surface of the upper terminal row 3 is a plane matched with the upper surface of the fire wire terminal 17, and a layer of mica paper lining is attached to the lower surface of the upper terminal row 3 to serve as a surface-attached insulating structure, so that the upper terminal row 3 can be attached to the upper surface of the fire wire terminal 17 after being pressed into the blind assembly groove. The upper terminal row 3 is pre-fixed through the fixing eye-splice 4 structures corresponding to the two sides of the upper terminal row 3 and the lower terminal row 5 after being pressed in at the assembly blind slot position, then the compression screw 8 is screwed in the position corresponding to the plug wire hole seat 16, and the compression screw 8 is tightly pressed against the inserted live wire, so that the assembly is completed.

In order to improve the physical strength of the upper terminal strip 3, a reinforcing pad 7 integrally formed with the upper terminal strip 3 is further formed at a position between the two fire wire terminals on the upper surface of the upper terminal strip 3 for reinforcement; in order to improve the performance of the integrated terminal block after assembly, the compression screw 5 as the compression unit is a screw subjected to galvanization; and an insulating rubber sealing member 9 is embedded at the outer edge gap position of the pressing position of the upper terminal row 3 and the lower terminal row 5 to be used as a sealing structure.

When the live wire terminal assembly is used, the live wire terminal assembly 1 is assembled on the fixing support 2, then is installed in the lower terminal row 5, then is installed in the upper terminal row 3 after a live wire is assembled in the live wire terminal 17 correspondingly, is fixed through the compression screw 8, and then is installed in an electric meter through the fixing support 2, so that the whole assembly of the live wire can be completed.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should also be understood that various alterations, modifications and/or variations can be made to the present invention by those skilled in the art after reading the technical content of the present invention, and all such equivalents fall within the protective scope defined by the claims of the present application.

Claims (7)

1. The integrated terminal base of the single-phase electric energy meter is characterized by comprising an upper terminal row, a lower terminal row and a fire wire terminal assembly, wherein the fire wire terminal assembly comprises a plurality of fire wire terminals arranged in parallel, each fire wire terminal comprises a wire inserting hole base with a pressing unit, and a connecting sheet is formed at the tail end of each fire wire terminal; the live wire terminal assembly further comprises a residual current transformer and an arc monitoring coupler, a manganin shunt is arranged beside the residual current transformer and the arc monitoring coupler, and the connecting sheet is electrically connected with the residual current transformer, the arc monitoring coupler and the manganin shunt; the lower terminal row is of an insulating shell structure and is provided with an assembly blind groove, plug holes matched with the number of the fire wire terminals are formed in the outer side of the assembly blind groove, the fire wire terminals in the fire wire terminal assembly are inserted into the plug holes at the position of the assembly blind groove and are fixed in position through a fixing support, and the upper terminal row is integrally pressed in the assembly blind groove and limits the position of the fire wire terminals in the lower terminal row.

2. The integrated terminal block of the single-phase electric energy meter as claimed in claim 1, wherein the fixing bracket is further provided with a connecting unit for detachably connecting the integrated terminal block with the meter casing, and the connecting unit is one or a combination of a fastening piece, a plug piece and a threaded connecting piece.

3. The integrated terminal block of the single-phase electric energy meter as claimed in claim 1, wherein the upper surface of the fire wire terminal is a plane, and a tooth-shaped rough texture is formed on the plane; the lower surface of the upper terminal row is a plane matched with the upper surface of the fire wire terminal, and the lower surface of the upper terminal row can be pressed into the assembly blind groove and then attached to the upper surface of the fire wire terminal.

4. The integrated terminal block of the single-phase electric energy meter as claimed in claim 1, wherein a mica paper lining is attached to the lower surface of the upper terminal block.

5. The integrated terminal block of a single-phase electric energy meter according to claim 1, wherein a reinforcing pad is formed integrally with the upper terminal block at a position between the two live terminals in the upper terminal block.

6. The integrated terminal block of the single-phase electric energy meter as claimed in claim 1, wherein the compression unit is a screw that is galvanized.

7. The integrated terminal block of the single-phase electric energy meter as claimed in claim 1, wherein a sealing ring is embedded in an outer edge gap of the press-fit position between the upper terminal block and the lower terminal block as a sealing structure.

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