CN213181683U - Wiring terminal for terminal box - Google Patents

Abstract

The utility model relates to a connecting terminal for terminal box, which comprises a connecting terminal seat, wherein the connecting terminal seat is internally provided with a through hole extending along the length direction of the connecting terminal seat, and the top wall of the connecting terminal seat is provided with a mounting hole for mounting a screw therein and communicating with the through hole; the method is characterized in that: the two opposite inner side walls of the through hole are convexly provided with positioning parts which can be contacted with the inserted copper bar, and a limiting groove for inserting the copper bar is formed between the positioning parts and the bottom wall of the through hole. The copper bar is limited between the bottom walls of the positioning portion and the through hole, the structural design of the copper bar is more reasonable, the copper bar is positioned, the possibility of moving the copper bar is reduced, the firmness of positioning the copper bar is increased, and the possibility of poor contact between the copper bar and a subsequent lead is reduced.

Description

Wiring terminal for terminal box

Technical Field

The utility model belongs to the ammeter field, concretely relates to a binding post for on ammeter knob box.

Background

At present, a wiring terminal is arranged in a terminal box used on an electric energy meter, a screw is arranged on the wiring terminal, the installation of a wire is completed by screwing the screw, the wire is firstly inserted into the wiring terminal and is arranged on a conductive copper piece, and then the screw is rotated to be downward immediately, so that the compression installation of the wire is completed.

Like chinese utility model patent "an end button box", its patent number is CN201320341059.8 (the grant bulletin number is CN203275477U) and discloses an end button box, including box body, the binding post of setting in the box body, be formed with a plurality of installation chambeies on the box body, all be provided with a binding post in each installation intracavity, correspond each binding post at the front end of box body and seted up the wire jack, the upper end of box body sets up porosely, binding post overall structure is the penetrating rectangle in both ends, and the up end is provided with a plurality of mounting screw holes, and the mounting screw hole corresponds the hole setting of box body upper end, the screw sets up the up at the up end of box body, and the screw rod part of screw passes through mounting screw hole with binding post in the box body and links together, through rotatory screw, can drive binding post whole rising, the wire alright through conductive copper spare with binding post's lower terminal surface compression connection.

Binding post in the above-mentioned patent can realize compressing tightly to the wire, but, when binding post's both ends were buckled when folding together, two screw mounting holes were difficult for aligning, and easy dislocation to when subsequent mutual-inductor's copper bar cartridge, the copper bar rocks or removes easily, thereby leads to the copper bar to appear with the condition of subsequent wire contact failure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the current situation of above-mentioned prior art, a binding post for terminal box that copper bar location is firm is provided.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a terminal block for terminal box includes

The wiring terminal seat is internally provided with a through hole extending along the length direction of the wiring terminal seat, and the top wall of the wiring terminal seat is provided with a mounting hole for mounting a screw therein and communicating with the through hole;

the method is characterized in that: the two opposite inner side walls of the through hole are convexly provided with positioning parts which can be contacted with the inserted copper bar, and a limiting groove for inserting the copper bar is formed between the positioning parts and the bottom wall of the through hole.

Preferably, at least two positioning portions are arranged on two inner side walls of the through hole at intervals along the axial direction of the through hole, and the bottoms of the positioning portions are both located on the same horizontal plane.

In order to realize the electric connection and fixation between the subsequent conductive piece and the copper bar, a space C for the conductive piece to insert is formed between the screw and the copper bar under the state that the screw is inserted into the corresponding mounting hole and the copper bar is inserted into the limiting groove. Therefore, the rotating screw can compress the conductive piece on the copper bar, so that the fixation and the electric connection of the copper bar and the conductive piece are realized.

Specifically, the height h between the positioning part and the bottom wall of the through hole is 2.1 mm-2.2 mm, and the width w between the two inner side walls of the limiting groove is 8.1 mm-8.2 mm.

The structure form of the connection terminal base has a plurality of, but preferably, the connection terminal base includes the bottom plate, the relative both sides of bottom plate all upwards extend and are formed with the extension board, two the last border of extension board is buckled in opposite directions and is extended and be formed with first folded plate and second folded plate respectively, first folded plate and second folded plate arrange from top to bottom, and correspond and seted up the mounting hole.

In order to increase the contact between the flange and the second mounting hole after the screw is mounted so as to increase the clamping force, the mounting hole of the first folded plate is a first mounting hole, the second folded plate is positioned above the first folded plate, the mounting hole on the second folded plate is a second mounting hole, the periphery of the first mounting hole is provided with a flange which extends upwards and penetrates out of the second mounting hole, and the first mounting hole is communicated with the through hole.

Preferably, an outer peripheral wall of the flange partially abuts against an inner peripheral wall of the second mounting hole.

In order to increase the connection between the second folded plate and the extension plate, the second folded plate is provided with an insertion plate extending downwards on the side edge of the connection terminal base in the length direction, and the extension plate is provided with an insertion hole which is in insertion fit with the insertion plate at the position corresponding to the insertion plate.

Specifically, the number of the insertion plates is two, and the insertion plates are arranged at intervals along the length direction of the wiring terminal base.

In order to prevent the second folded plate from being separated upwards from the extending plate, the lower end of the inserting plate is in an inverted T shape, the inserting hole is matched with the corresponding inserting plate, and the lower end of the inserting hole is also in an inverted T shape.

Preferably, the cross section of the connection terminal seat is square.

Compared with the prior art, the utility model has the advantages of: the existence of this a location portion for on binding post's the perforating hole inside wall of end button box can contact with the copper bar after follow-up copper bar inserts for the copper bar is spacing between the diapire of location portion and perforating hole, and its structural design is reasonable more, fixes a position the copper bar, reduces the possibility that the copper bar removed, has increased the fastness of copper bar location promptly, and then has reduced the possibility that contact failure appears in copper bar and follow-up wire.

Drawings

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

FIG. 2 is a cross-sectional view of FIG. 1;

fig. 3 is a schematic structural view of the connection terminal of fig. 1;

FIG. 4 is a schematic view of the structure of FIG. 3 at another angle;

FIG. 5 is a cross-sectional view of FIG. 3;

fig. 6 is a cross-sectional view at another angle of fig. 3.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 6, a terminal for a terminal box according to an embodiment of the present invention includes a terminal block 1 and a screw 3.

As shown in fig. 1, 3 and 4, the connection terminal base 1 includes a bottom plate 11, two opposite left and right edges of the bottom plate 11 extend upward to form extension plates 12, an upper edge of one of the extension plates 12 bends rightward to extend to form a first folding plate 13, an upper edge of the other extension plate bends leftward to extend to form a second folding plate 14, that is, the upper edges of the two extension plates 12 bend in opposite directions to extend to form the first folding plate 13 and the second folding plate 14, respectively, the second folding plate 14 is located above the first folding plate 13 and is correspondingly provided with a mounting hole for inserting the screw 3, and then the mounting hole is opened on a top wall of the connection terminal base 1. As shown in fig. 5 and 6, the first mounting holes 131 are the mounting holes of the first flap 13, the second mounting holes 141 are the mounting holes of the second flap 14, and the first mounting holes 131 and the second mounting holes 141 are arranged in groups, and two groups are arranged at intervals in the front-rear direction along the length direction of the terminal block, as shown in fig. 1.

As shown in fig. 5 and 6, the periphery of the first mounting hole 131 has a flange 1311 extending upward and penetrating the second mounting hole 141, the flange 1311 penetrates the second mounting hole 141, and the outer peripheral wall of the flange 1311 partially abuts against the inner peripheral wall of the second mounting hole 141. A through hole 1a is formed by the surrounding among the base plate 11, the extension plate 12, the first flap 13, and the second flap 14, and the cross section of the terminal block 1 is square, so that the cross section of the through hole 1a is square. The through hole 1a extends along the longitudinal direction of the terminal block 1, and as shown in fig. 2, 5, and 6, the first mounting hole 131 communicates with the through hole 1 a.

As shown in fig. 1 to 6, positioning portions 122 capable of contacting with the inserted copper bar 2 are convexly disposed on the left and right inner side walls of the through hole 1a, a limiting groove a for inserting the copper bar 2 therein is formed between the positioning portions 122 and the bottom wall of the through hole 1a, two positioning portions 122 are disposed on the left and right inner side walls, the two positioning portions 122 are arranged at intervals along the axial direction of the through hole 1a, and the bottoms of the positioning portions 122 are substantially located on the same horizontal plane, so that the copper bar 2 is positioned in the state that the copper bar 2 is inserted into the limiting groove a. As shown in fig. 5, the height h between the positioning portion 122 and the bottom wall of the through hole 1a is 2.1mm to 2.2mm, and as shown in fig. 6, the width w between the two inner side walls of the stopper groove a is 8.1mm to 8.2 mm. When the screw 3 is installed in the corresponding first installation hole 131 and the copper bar 2 is inserted into the limiting groove a, a space C for inserting the conductive piece is formed between the screw 3 and the copper bar 2, when the subsequent conductive piece is inserted into the space C, the screw 3 is rotated, the conductive piece is pressed on the copper bar 2 by the screw 3, so that the conductive piece and the copper bar 2 are positioned, and in addition, the other end of the copper bar 2 is usually connected with a mutual inductor in the electric energy meter.

In order to connect the second folding plate and the extension plate, as shown in fig. 2, 4 and 5, the second folding plate 14 has an insertion plate 142 extending downward on the left side edge of the terminal block 1 in the length direction, the extension plate 12 is provided with an insertion hole 121 in a position corresponding to the insertion plate 142, the insertion hole 121 is in an inverted T shape, the insertion hole 121 is matched with the corresponding insertion plate 142, and the lower end of the insertion hole 121 is also in the inverted T shape, so that when the insertion plate 142 is installed in the corresponding insertion hole 121, the lower end of the insertion plate 142 is matched with the insertion hole 121, and the insertion plate 142 is prevented from being separated from the corresponding insertion hole 121 upwards, as shown in fig. 2.

The invention of the application mainly lies in the specific structure of each wiring terminal, and it is not the invention of the application as to the circuits and the like involved in realizing the electric connection of the conductive piece and the copper bar of the mutual inductor through the wiring terminal, and the circuits are the same as the circuits in the electric meter in the prior art, and will not be described in detail in the application.

Directional terms such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the present invention, but these terms are used herein for convenience of description only and are determined based on example orientations shown in the drawings. Because the disclosed embodiments may be arranged in different orientations, these directional terms are for illustrative purposes only and should not be construed as limiting, and for example, "upper" and "lower" are not necessarily limited to orientations opposite or consistent with the direction of gravity.

Claims (10)

1. A terminal block for terminal box includes

The terminal block (1), its inside has through hole (1a) extending along its length direction, equip with the mounting hole that can be used for the screw (3) to install among them and communicate with said through hole (1a) on the roof of the terminal block (1);

the method is characterized in that: the two opposite inner side walls of the through hole (1a) are respectively provided with a positioning part (122) which can be contacted with the inserted copper bar (2) in a protruding mode, and a limiting groove (A) for inserting the copper bar (2) is formed between the positioning part (122) and the bottom wall of the through hole (1 a).

2. The connection terminal according to claim 1, wherein: at least two positioning parts (122) which are arranged at intervals along the axial direction of the through hole (1a) are arranged on the two inner side walls of the through hole (1a), and the bottoms of the positioning parts (122) are basically located on the same horizontal plane.

3. The connection terminal according to claim 2, wherein: and a space (C) for inserting a conductive piece is formed between the screw (3) and the copper bar (2) in a state that the screw (3) is inserted into the corresponding mounting hole and the copper bar (2) is inserted into the limiting groove (A).

4. A terminal according to any one of claims 1 to 3, wherein: the wiring terminal base (1) includes bottom plate (11), the relative both sides of bottom plate (11) all upwards extend and are formed with extension board (12), two the last border of extension board (12) is buckled in opposite directions and is extended and be formed with first folded plate (13) and second folded plate (14) respectively, arrange from top to bottom first folded plate (13) and second folded plate (14), and have seted up correspondingly the mounting hole.

5. The connection terminal according to claim 4, wherein: the mounting hole of the first folded plate (13) is a first mounting hole (131), the second folded plate (14) is positioned above the first folded plate (13), the mounting hole on the second folded plate (14) is a second mounting hole (141), a flange (1311) which extends upwards and penetrates out of the second mounting hole (141) is arranged on the periphery of the first mounting hole (131), and the first mounting hole (131) is communicated with the through hole (1 a).

6. The connection terminal according to claim 5, wherein: the outer peripheral wall of the flange (1311) partially abuts against the inner peripheral wall of the second mounting hole (141).

7. The connection terminal according to claim 5, wherein: the second folded plate (14) is provided with an inserting plate (142) extending downwards on the side edge of the length direction of the wiring terminal base (1), and the extending plate (12) is provided with an inserting hole (121) matched with the inserting plate (142) in an inserting way at the position corresponding to the inserting plate (142).

8. The connection terminal according to claim 7, wherein: the two insertion plates (142) are arranged at intervals along the length direction of the wiring terminal base (1).

9. The connection terminal according to claim 7, wherein: the lower end of each insertion plate (142) is in an inverted T shape, and the insertion holes (121) are matched with the corresponding insertion plates (142), so that the lower ends of the insertion holes (121) are also in inverted T shapes.

10. The connection terminal according to claim 1, wherein: the cross section of the wiring terminal seat (1) is square.

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