CN103500888B - A kind of wire binding post - Google Patents

Abstract

The invention relates to a wire terminal, which comprises a base body made of aluminum, one end of the base body is provided with a detachable connection part for wire connection, and the other end of the base body is provided with a detachable connection part for electrical components. Disassemble the connecting piece, the contact surface between the connecting piece and the electrical component is provided with a tin-plated layer and a protective layer in sequence from the inside to the outside. Both the tinned layer and the tinned layer are provided with connection holes that match the socket; the advantages of the present invention are that the protective layer is fixed on the connector through the tinned layer, which reduces the contact between aluminum and electrical copper connecting terminals and improves safety. The performance ensures the normal use of the equipment, and the connecting part and the connecting piece are detachably arranged on the substrate, which improves the service life of the substrate and reduces the production cost.

Description

A wire terminal

technical field

The invention relates to a connecting terminal for wires.

Background technique

Terminal block is an accessory product for electrical connection. The existing terminal block is processed through aluminum. The terminal block of the existing electrical equipment is made of copper material. It is necessary to set a copper protective layer on the aluminum terminal, and the existing copper protective layer is fixed by sticking, winding, etc., which is easy to damage the connection part of the terminal and affect the equipment. , when the connecting portion of the terminal is damaged, the entire terminal is scrapped, which reduces the service life and increases the production cost.

Contents of the invention

The technical problem to be solved by the present invention is that the connecting terminal is easy to affect the electrical equipment when it is connected, the service life is short, and the production cost is high, thereby providing a connecting terminal for wires.

In order to solve the above-mentioned technical problems, the present invention is achieved through the following technical solutions: a terminal for wires, including a base made of aluminum, one end of the base is provided with a detachable connection part for wire connection, the The other end of the base body is provided with a detachable connector for connecting the electrical components, the contact surface of the connector and the electrical components is provided with a tin-plated layer and a protective layer in sequence from the inside to the outside, and the front part of the connector is provided with Jacks matched with electrical components, each protective layer and tin-plated layer are provided with connecting holes matched with the jacks.

Preferably, the longitudinal section of the protective layer is U-shaped, the protective layer is a copper sheet, the thickness of the copper sheet is 5-15 mm, the copper sheet has good serviceability, good stability, good corrosion resistance, and the U-shaped The processing is convenient and the connection is reliable. When the thickness of the copper sheet is less than 5mm, it is not conducive to the fixing of the protective layer and its rupture. When the thickness of the copper sheet is greater than 15mm, it is not conducive to the connection of the connector to the electrical component, and the use effect is poor.

Preferably, the thickness of the connector is 30-50 mm, and the thickness of the tin-plated layer is 4-6 mm, which facilitates the fixed connection of the protective layer, ensures that the protective layer does not break, improves the safety performance, and has a good use effect.

Preferably, the insertion hole is arranged in the middle of the connector, and the insertion hole is a round hole or a rectangular hole, which is easy to process, reliable in connection and good in use effect.

Preferably, the socket is arranged on the front side of the connector, and the socket is a circular arc groove, which is easy to install, improves installation efficiency, reduces workload, and has good reliability.

Preferably, an anti-slip block is provided on the inner wall of the socket, and the anti-slip block is a helical tooth, and the helical tooth increases the friction between the slot and the electrical component, ensures the reliability of the connection, and has a good use effect.

Preferably, the cross-section of the base body is an inverted Z shape, and the connecting portion and the connecting piece are arranged parallel to each other on the two horizontal portions of the base body. The inverted Z shape has a simple structure and is convenient for fixing and installing the connecting portion and the connecting piece. The overall connection effect is good.

Preferably, the two horizontal parts of the base are provided with slots, the connecting part is provided with a first buckle matching with the slot, and the connecting part is provided with a second plug matching with the slot. buckle, the front end of the first buckle is movably connected with a first buckle that fixes the first buckle in the slot, and the front end of the second buckle is movably connected with a buckle that fixes the second buckle in the slot. The second buckle, the two horizontal parts of the base body are provided with the first buckle fixing and the second buckle fixing grooves, and the first buckle and the second buckle are respectively controlled by the first buckle and the second buckle. The second buckle is disassembled on the base body, has simple structure, reliable connection, good use effect, and effectively improves the service life of the base body.

Preferably, the first buckle is movably connected to the first buckle through a first spring, and the second buckle is movably connected to the second buckle through a second spring. The cross section of the first buckle Both the cross-section of the buckle and the second buckle are triangular, the connection between the first spring and the second spring is reliable, the reset effect is good, and the installation and disassembly are convenient.

Preferably, the cross-section of the connecting portion is circular, and the connecting portion is provided with a first groove for passing through the wire cable layer and a first through hole for passing through the wire insulating layer, and the first groove It is a U-shaped groove, and the round shape is convenient to process. The cable layer of the wire is inserted in the first groove, and the insulating layer of the wire is fixed in the first through hole, which ensures the reliability of the wire connection and avoids the connection between the wire and the connecting part. Fracture occurs, good practical performance, good safety performance.

To sum up, the advantages of the present invention are: the protective layer is fixed on the connector through the tin-plated layer, which reduces the contact between the aluminum and the electrical copper connection terminal, improves the safety performance, and ensures the normal use of the equipment. The connecting piece is detachably arranged on the substrate, which increases the service life of the substrate and reduces production costs.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing:

FIG. 1 is a schematic structural view of Embodiment 1 of the present invention;

Fig. 2 is the sectional view of A-A among Fig. 1;

Fig. 3 is a schematic structural diagram of Embodiment 2 of the present invention.

detailed description

Embodiment one:

As shown in Fig. 1 and Fig. 2, a wire terminal includes a base body 1 made of aluminum, one end of the base body 1 is provided with a detachable connection part 2 for wire connection, the other end of the base body 1 One end is provided with a detachable connector 3 for connecting electrical components, and the contact surface between the connector 3 and the electrical components is provided with a tin-plated layer 5 and a protective layer 4 sequentially from the inside to the outside, and the front part of the connector 3 Jacks 33 that cooperate with electrical components are provided, and connection holes 41 that cooperate with jacks 33 are opened on the protective layer 4 and tin-plated layer 5 of each layer. The longitudinal section of the protective layer 4 is U-shaped, so The protective layer 4 is a copper sheet, the thickness of the copper sheet is 5-15mm, the copper sheet has good serviceability, good stability, good corrosion resistance, U-shaped processing is convenient, and the connection is reliable. When the thickness of the copper sheet is less than 5mm , it is not conducive to the fixing of the protective layer 4 and its rupture. When the thickness of the copper sheet is greater than 15mm, it is not conducive to the connection of the connector 3 on the electrical component, and the use effect is poor. The thickness of the connector 3 is 30-50mm. The thickness of the tin-plated layer 5 is 4-6mm, which is convenient for the fixed connection of the protective layer 4, ensures that the protective layer 4 does not break, improves the safety performance, and has good use effect. The jack 33 is arranged in the middle of the connector 3, so that The insertion hole 33 is a round hole or a rectangular hole, which is convenient for processing, reliable in connection, and good in use effect. The cross section of the base body 1 is an inverted Z shape, and the connecting part 2 and the connecting piece 3 are arranged on the side of the base body 1 in parallel with each other. The two horizontal parts can also be other shapes that are convenient for processing. The inverted Z-shaped structure is simple, which is convenient for the fixed installation of the connecting part 2 and the connecting part 3. The overall connection effect is good. The two horizontal parts of the base 1 are both A slot 12 is provided, a first buckle 21 matching with the slot 12 is provided on the connecting part 2, a second buckle 31 matching with the slot 12 is provided on the connecting part 3, the first The front end of the buckle 21 is movably connected with a first buckle 22 that fixes the first buckle 21 in the slot 12, and the front end of the second buckle 31 is movably connected with a hook that fixes the second buckle 31 in the slot 12. The second buckle 32 inside, the two horizontal parts of the base 1 are provided with the first buckle 22 fixed and the second buckle 32 fixed groove 14, through the first buckle 22 and the second buckle 32 respectively control the first buckle 21 and the second buckle 31 to be disassembled on the base 1. The structure is simple, the connection is reliable, the use effect is good, and the service life of the base 1 is effectively improved. The first buckle 22 passes through the first The spring 7 is movably connected to the first buckle 21, and the second buckle 32 is movably connected to the second buckle 31 by the second spring 6. The cross section of the first buckle 22 and the second buckle 32 The cross-sections of the springs are all triangular, and other connection methods that are convenient for flexible connection can also be used. The first spring 7 and the second spring 6 are connected reliably, have good reset effect, and are easy to install and disassemble. The cross-section of the connecting part 2 is circular. The connecting part 2 is provided with a first groove 23 for the penetration of the wire and cable layer and a first through hole 24 for the penetration of the wire insulation layer. The first groove 23 is a U-shaped groove, which is convenient for circular processing. Pass the cable layer of the wire through the first groove 23, the insulating layer of the wire is fixed in the first through hole 24, which ensures the reliability of the wire connection, avoids the breakage of the wire and the connecting part 2, and has good practical performance and good safety performance.

Embodiment two:

A wire terminal as described in Embodiment 1, this embodiment has the following differences: As shown in Figure 3: the jack 33 is arranged on the front side of the connector 3, the jack 33 is an arc-shaped groove, the groove is easy to install, improves the installation efficiency, reduces the workload, and has good reliability. The teeth and helical teeth increase the friction between the slot 12 and the electrical components, ensuring the reliability of the connection, and the use effect is good.

The first buckle 21 is fixed on the base body 1 through the first buckle 22 and its corresponding fixing groove 14, and the second buckle 31 is raised to fix the second buckle 32 and its corresponding fixing groove 14 on the base body 1. A layer of tin-plated layer 5 is soldered on the connector 3, and then the protective layer 4 is welded on the connector 3 by brazing. Before use, the wire cable is passed through the first groove 23 of the connector 2 and the wire The insulating layer is fixed in the first through hole 24, and the connecting piece 3 is fixed on the electrical component through the socket 33 provided on the connecting piece 3. When the connecting piece 3 or the connecting part 2 is damaged, only the corresponding one needs to be replaced. The connecting piece 3 or the connecting part 2 is enough.

The protective layer is fixed on the connecting piece through the tin plating layer, which reduces the contact between aluminum and electrical copper connecting terminals, improves the safety performance, and ensures the normal use of the equipment. The connecting part and the connecting piece are detachably arranged on the base , improve the service life of the substrate, and reduce production costs.

Claims (6)

1. A wire terminal, comprising a base (1) made of aluminum, characterized in that: one end of the base (1) is provided with a detachable connection portion (2) for wire connection, the base The other end of (1) is provided with a detachable connector (3) for connecting electrical components, and the contact surface between the connector (3) and the electrical components is sequentially provided with a tin-plated layer (5), protection Layer (4), the front part of the connector (3) is provided with jacks (33) that are matched with electrical components, and each layer of the protective layer (4) and tin-plated layer (5) is provided with a The connecting hole (41) matched with the hole (33), the cross-section of the base (1) is an inverted Z shape, and the connecting part (2) and the connecting piece (3) are arranged parallel to each other on both sides of the base (1). On two horizontal parts, the two horizontal parts of the base (1) are provided with slots (12), and the connecting part (2) is provided with a first buckle (21) matching with the slots (12). ), the connector (3) is provided with a second buckle (31) cooperating with the slot (12), and the front end of the first buckle (21) is movably connected with the first buckle (21) The first buckle (22) fixed in the slot (12), the front end of the second buckle (31) is movably connected with the second buckle (31) that fixes the second buckle (31) in the slot 32), the two horizontal parts of the base (1) are provided with the fixing slots (14) for fixing the first buckle (22) and the second buckle (32), and the protective layer (4) The longitudinal section is U-shaped, the protective layer (4) is a copper sheet, the thickness of the copper sheet is 5-15mm, the thickness of the connector (3) is 30-50mm, and the tin-plated layer (5) The thickness is 4 ~ 6mm. 2. A wire terminal according to claim 1, characterized in that: the jack (33) is arranged in the middle of the connector (3), and the jack (33) is a round hole or a rectangular hole . 3. A wire terminal according to claim 1, characterized in that: the jack (33) is arranged on the front side of the connector (3), and the jack (33) is round Curved grooves. 4. A wire terminal according to claim 3, characterized in that: an anti-slip block (331) is provided on the inner wall of the insertion hole (33), and the anti-slip block (331) is helical teeth. 5. A wire terminal according to claim 1, characterized in that: the first buckle (22) is movably connected to the first buckle (21) through a first spring (7), and the The second buckle (32) is movably connected on the second buckle (31) by the second spring (8), and the cross section of the first buckle (22) and the cross section of the second buckle (32) are both is a triangle. 6. A wire terminal according to claim 1, characterized in that: the cross-section of the connecting part (2) is circular, and the connecting part (2) is equipped with The first groove (23) and the first through hole (24) through which the wire insulation layer passes, the first groove (23) is a U-shaped groove.