CN204464498U - A compact terminal - Google Patents

Abstract

The utility model relates to a kind of compact binding post, is arranged at lamp interior, for the connection of light fixture and outer lead.It comprises a terminal shell.Terminal shell comprises three connecting grooves be arranged in order.Mutually insulated between each connecting groove, and its opening is all in the same side of terminal shell.In three connecting grooves, the opening being positioned at middle connecting groove extends a preset length to the direction away from terminal shell.A binding post and the pressure-ray film for fixed outer wire is respectively arranged with in each connecting groove.Thus, in connecting groove, three wiring positions are formed.Compact binding post of the present utility model can not only meet the safe spacing requirement between each current-carrying part of I class lamp interior, and can meet the spatial limitation of lamp interior binding post mounting structure.

Description

A compact terminal

technical field

The utility model relates to a connection terminal, in particular to a compact connection terminal used for lamps.

Background technique

At present, compact terminal blocks are generally used in Class II lamps, but the middle connection position of compact terminal blocks needs to be suspended in the air to meet the safety distance between the current-carrying parts of Class II lamps stipulated in the national standard GB7000.1. Require. However, the interior space of lamps is often relatively limited. Suspending the middle connection position of the compact terminal leads to the inability to fully utilize the internal space of the lamp, making the structure of the lamp relatively bloated and high in cost, and the existing compact terminal cannot meet the requirements of Class I lamps. wiring requirements.

Utility model content

The purpose of this utility model is to provide an ingeniously structured compact terminal, which can not only meet the safety distance requirements between current-carrying parts inside the I-type lamp, but also adapt to the space limitation of the internal terminal installation structure of the lamp.

A compact terminal set inside the luminaire for connection between the luminaire and external wires. It includes a terminal housing. The terminal housing includes three wiring slots arranged in sequence. The wiring grooves are insulated from each other, and their openings are all on the same side of the terminal housing. Among the three wiring slots, the opening of the middle wiring slot extends a predetermined length away from the terminal housing. Each wiring slot is respectively provided with a terminal and a wire crimping sheet for fixing external wires. Thus, three connection positions are formed in the connection groove.

Further, the terminal includes a fixed frame and a positioning post extending from the bottom of the fixed frame in a direction away from the fixed frame. The shape of the outer peripheral side of the fixed frame matches the shape of the inner peripheral side of the wiring groove.

Further, the bottom of each junction slot is provided with a strip-shaped slot for the positioning post of the junction post to protrude.

Further, the side of the fixing frame of the binding post away from the positioning post is formed by two partitions separated by a preset gap.

Further, the wire pressing piece includes a first connecting piece protruding into the gap between the two partitions of the fixing frame and a second connecting piece pressing the external wire together with the inner peripheral bottom surface of the fixing frame. The second connecting piece first extends downward from the end of the first connecting piece away from the opening of the wiring slot, and then extends obliquely downward toward the bottom surface close to the inner periphery of the fixing frame.

Further, the upper part of the terminal housing is provided with three screw holes corresponding to the three wiring slots. Each terminal post and the first connecting piece of each wire-pressing piece are provided with through holes corresponding to the screw holes; each terminal post and each wire-pressing piece are fixed to the wiring groove by screws passing through the screw holes and the through holes.

Further, the end of the screw abuts against a side of the second connecting piece of the wire pressing piece that is close to the first connecting piece.

Further, the three wiring slots are integrally formed with the terminal housing.

The compact wiring terminal of the utility model extends the insulating rubber part of the middle wiring position of the wiring terminal, so that the compact wiring terminal can meet the safety distance requirements of the I-type lamps; Therefore, the spatial structure of the terminal can be fully utilized, so as to better meet the space restriction requirements inside the lamp; the screw and the crimping piece are abutted to ensure the stable connection between the crimping piece and the external wire and the external wire and the wiring groove. Therefore, the safety of the terminal is improved; in addition, the compact terminal of the utility model has a compact structure and is easy to assemble and disassemble. This compact terminal block can be used to connect luminaires to external conductors.

Description of drawings

FIG. 1 is an exploded perspective view of a compact terminal of an embodiment.

FIG. 2 is a perspective view of a terminal housing in an embodiment.

FIG. 3 is a perspective view of a terminal in an embodiment.

Fig. 4 is a perspective view of a wire crimping piece in an embodiment.

Fig. 5 is a schematic diagram of installing the compact terminal in Fig. 1 on the lamp chassis.

Detailed ways

The compact connection terminal of the present utility model will be further described in detail below in conjunction with specific embodiments and accompanying drawings.

As shown in Figures 1 to 4, Figure 1 is an exploded perspective view of a compact terminal in an embodiment; Figure 2 is a perspective view of a terminal housing in an embodiment; Figure 3 is a perspective view of a terminal in an embodiment; 4. A three-dimensional view of the wire crimping sheet in the embodiment.

For the convenience of description, the "up" and "down" referred to below are consistent with the up and down directions in Figure 1 itself, and the plane where the terminal housing is located is the horizontal plane, but it does not limit the structure of the utility model.

The compact connecting terminal of the utility model is arranged inside the lamp, and is used to realize the connection between the lamp and the external wire, and the compact connecting terminal of the utility model is suitable for the lamp whose working voltage is lower than 250V. The compact terminal of this embodiment includes a terminal housing 1 , three terminal posts 2 and three crimping pieces 3 . The terminal housing 1 is made of insulating and fireproof material. As shown in FIG. 2 , the terminal housing is roughly prism-shaped, and three wiring slots 11 arranged in sequence are formed inside, wherein each wiring slot 11 is integrally formed with the terminal housing 1 . The connection grooves 11 are insulated from each other, and each connection groove 11 has an opening, and the openings are all arranged on the same side of the terminal housing 1 . Among the above three wiring slots 11 , the opening of the middle wiring slot 11 extends a predetermined length away from the terminal housing 1 . A terminal post 2 and a wire pressing piece 3 are arranged inside each connection groove 11 to form a connection position for connecting with and fixing the external wires. The compact connection terminal of the utility model is used in a type I lamp, and the three connection positions are sequentially used to connect live wires, ground wires and neutral wires.

Existing compact terminal blocks are usually used in Class II lamps. Since Class II lamps do not require grounding wires, the middle connection position needs to be suspended, which will result in the inability to fully utilize the space structure of the terminal block. If it is used for Class I Class I lamps and Class I lamps need grounding wires, which cannot meet the safety distance requirements of Class I lamps. The insulating material of the intermediate wiring position of the compact terminal of the utility model is extended, so that the compact terminal can meet the safety distance requirements of Class I lamps; in addition, since the intermediate terminal does not need to be suspended, it can fully Using the space structure of the terminal block, it can better meet the space restriction requirements inside the lamp

As shown in FIG. 3 , the terminal post 2 includes a fixed frame 21 and a positioning post 22 extending from the bottom of the fixed frame 21 in a direction away from the fixed frame 21 . The fixing frame 21 is substantially a circular frame, and its outer peripheral side is shaped to match the inner peripheral side of the wiring groove 11 . The upper part of the fixing frame 21 , that is, the side away from the positioning column 22 is formed by two partitions 23 separated by a predetermined gap. The two partitions 23 respectively extend from the upper ends of the left and right side surfaces of the fixing frame 21 in directions opposite to each other.

An elongated slot 13 is respectively provided at the bottom of each wiring groove 11 of the terminal housing 1 . When assembling the compact terminal, the fixing frame 21 of the terminal 2 can be inserted into the terminal groove 11, and the positioning column 22 of the terminal 2 can pass through the slot 13, thereby pushing the terminal 2 into the terminal groove 11 middle. Preferably, the size of the slot and the positioning post can be designed so that the two form an interference fit, so that the terminal post can be more firmly fixed in the terminal slot.

As shown in FIG. 4 , the wire pressing piece 3 includes a first connecting piece 31 that can extend into the gap between the two partitions 23 of the fixing frame 21 and a second connecting piece 32 for pressing and fixing the external wires. Wherein, the second connecting piece 32 first extends downward from the end of the first connecting piece 31 away from the opening of the wiring slot 11 , and then extends obliquely downward toward the inner peripheral bottom surface of the fixing frame 21 .

Three screw holes 12 corresponding to the three wiring grooves 11 are provided on the upper part of the terminal housing 1 . The first connection piece 31 of each terminal post 2 and each wire crimping piece 3 is also respectively provided with through holes 24 , 33 corresponding to the above-mentioned screw holes 12 . When assembling the compact terminal of the utility model, insert the first connecting piece 31 of the crimping piece 3 into the gap between the two partitions 23 on the upper part of the terminal 2, and then push the crimping piece 3 and the terminal 2 into the terminal shell together In the wiring slot 11 of the body 1, finally use the screw 4 to pass through the screw holes 12 and the through holes 24, 33 of each terminal post 2 and the wire pressing piece 3, so that the end of the screw 4 and the second connecting piece 32 are close to the first One side of a connecting piece 31 abuts against each other. Wherein, the terminal post is made of copper, and the crimping piece is made of stainless steel. As a result, a connection point connected to an external wire is formed in each connection groove 11 . When an external wire is connected, the external wire extends into the connection position formed by the crimping piece 3 and the fixed frame 21, and then adjusts the screw 4 so that it abuts the crimping piece 3, so that the crimping piece 3 and the fixing frame 21 Co-clamps the outer conductors. Make the screw 4 abut against the crimping piece 3, and ensure the stable connection between the crimping piece 3 and the external wire and the external wire and the wiring slot by adjusting the screw 4, thereby improving the stability and safety of the terminal. Therefore, the compact terminal of the utility model has a compact structure and is easy to assemble and disassemble.

Although the description of the utility model is performed in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes based on the above contents. Accordingly, all such alternatives, modifications and changes are intended to be included within the spirit and scope of the appended claims.

Claims (8)

1. A compact wiring terminal, which is arranged inside a lamp and is used for connecting the lamp to an external wire, is characterized in that it includes a terminal housing; the terminal housing includes three wiring grooves arranged in sequence; each of the The wiring grooves are insulated from each other, and their openings are all on the same side of the terminal housing; among the three wiring grooves, the opening of the middle wiring groove extends a preset length away from the terminal housing; A terminal post and a wire crimping piece for fixing external wires are respectively arranged in each of the connection slots. 2. The compact terminal according to claim 1, wherein the terminal comprises a fixed frame and a positioning column extending from the bottom of the fixed frame in a direction away from the fixed frame; The shape of the outer peripheral side of the fixing frame matches the shape of the inner peripheral side of the wiring groove. 3 . The compact terminal according to claim 2 , characterized in that, the bottom of each terminal groove is provided with an elongated slot for the positioning column of the terminal to protrude. 4 . 4 . The compact terminal according to claim 2 , wherein the side of the fixing frame of the terminal away from the positioning column is formed by two partitions separated by a preset gap. 5. The compact terminal according to claim 4, wherein the crimping piece includes a first connecting piece extending into the gap between the two partitions of the fixing frame and the inner part of the fixing frame. The peripheral bottom surface jointly presses the second connecting piece of the external wire; the second connecting piece first extends downward from the end of the first connecting piece away from the opening of the wiring groove, and then extends obliquely downward to the bottom surface close to the inner circumference of the fixed frame . 6. The compact terminal according to claim 5, characterized in that, the upper part of the terminal housing is provided with three screw holes corresponding to the three wiring slots; The first connecting piece of the piece is provided with a through hole corresponding to the screw hole; the terminal posts and the wire pressing pieces are fixed to the wiring groove by screws passing through the screw hole and the through hole. 7 . The compact terminal according to claim 6 , wherein the end of the screw abuts against a side of the second connecting piece of the wire crimping piece that is close to the first connecting piece. 7 . 8. The compact terminal according to any one of claims 1 to 7, characterized in that, the three terminal slots are integrally formed with the terminal housing.