CN110197966B

CN110197966B - A plug

Info

Publication number: CN110197966B
Application number: CN201910589818.4A
Authority: CN
Inventors: 王翔
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2024-12-20
Anticipated expiration: 2039-07-02
Also published as: CN110197966A

Abstract

The present invention provides a plug, belonging to the technical field of electrical components. It solves the problems of poor contact and poor conductivity of the plug in the prior art. The plug comprises a shell and a plug pin, wherein a clamping member with a plane is arranged in the shell, and the inner end of the plug pin is a mounting portion with a plane. A clamping structure is also arranged in the shell to press the plane of the clamping member onto the plane of the mounting portion. The present invention twists or bends the plug pin to form a mounting portion perpendicular to the connecting portion, and the clamping action of the clamping member and the mounting portion, which are separately arranged from the clamping structure, enables the wire to fully contact the plug pin and form a direct connection, and the connection stability and conductivity are good.

Description

Plug

Technical Field

The invention belongs to the technical field of electric components and relates to a plug.

Background

The power plug commonly used in the day generally refers to a male connector with a rod shape or a copper plate shape, and the male connector comprises a shell and a pin, one end of the pin extends out of the shell, the other end of the pin is arranged in the shell, and a wire extends into the shell to be directly or indirectly connected with the pin. Regarding the connection of the wire and the pin, the conventional connection method disclosed in the prior art is generally divided into (1) winding the copper wire of the wire around the screw and then connecting the screw with the pin, and (2) directly welding the copper wire of the wire with the pin. The connection mode is inconvenient to connect and disassemble, and is easy to contact poorly, so that the conductivity is affected.

Aiming at the situation of the existing plug, the applicant of Chinese patent (patent number ZL200820045981.1, application date is 2008, 04 and 6) discloses a plug which comprises a plug shell and at least two conductive inserting sheets, wherein two conductive connecting columns are arranged in the plug shell, one ends of the conductive connecting columns are fixedly connected with the conductive inserting sheets through fasteners, and the other ends of the conductive connecting columns are fixedly connected with electric wires through the fasteners. The disclosed technical proposal is that the conductive connecting post is added, although the lead can be inserted into the conductive post for connection. However, the electric wire is blind-plugged in the conductive connecting column, whether the connection of the wire is in place or not is difficult to determine after the screw rotates, the electric wire and the conductive column are laterally clamped through the screw, the contact surface of the wire and the conductive connecting column is small and unstable, the conductive performance is affected, and the electric connection can be indirectly formed only by the conductive connecting column between the electric wire and the conductive inserting sheet, so that the conductive performance is affected.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a plug, and the technical problem to be solved by the invention is to improve the conductivity of the plug.

The plug comprises a shell and a pin, and is characterized in that a clamping piece with a plane is arranged in the shell, the inner end of the pin is a mounting part with a plane, and a clamping structure for pressing the plane of the clamping piece on the plane of the mounting part is also arranged in the shell.

When the lead wire is connected with the pins in the shell, a plurality of strands of copper wires on the lead wire are horizontally unfolded and horizontally laid on the plane of the installation part, the clamping piece is pressed above the copper wires in a side pressing mode, and the clamping piece is pressed on the installation part through the clamping structure. Because the installation part is the plane that has to be connected with the wire, a plurality of strands of copper wires can fully expand and with installation part contact, have increased the area of contact of wire and participate in, reduce the electric resistance to improve the conductive properties of wire and participate in. The clamping piece and the clamping structure are two separated structures, the clamping piece is pressed on the mounting part through the clamping structure, and the clamping piece can be kept motionless in the mounting process, so that a plurality of strands of copper wires arranged between the clamping piece and the mounting part can keep the preset position unchanged, and the mounting part of the plurality of strands of copper wires and the pins is further ensured to be fully contacted, so that the conductivity is improved.

In one of the above plugs, the mounting portion has a slightly protruding protrusion on a plane or/and a plane of the clip. When guaranteeing that the copper wire can fully contact with the installation department, through add the protruding arch of slightly outstanding on the plane, improve clamping piece and installation department to the clamping force of copper wire, improve wire and the stability of participating in the connection to guarantee the conductive property of participating in.

In the above-mentioned plug, the protrusion is in a strip shape. The strip-shaped bulges have clamping effect on a plurality of copper wires, so that the stability of connection between the lead and the pins is further improved.

In the above-mentioned plug, the housing has a limiting shoulder for limiting rotation of the clamping member. The limiting stop shoulder is arranged, when the clamping piece is pressed on the mounting part, manual operation is not needed, the clamping piece cannot rotate, copper wires preset between the clamping piece and the mounting part are prevented from rotating, and therefore the copper wires are guaranteed to be fully contacted with the mounting part, and the conductivity is improved.

In the above-mentioned plug, the clamping piece is a square clamping piece, and the limiting stop shoulders are at least located at two sides of the clamping piece.

In the above-mentioned plug, the clamping structure includes a screw and a threaded hole formed in the mounting portion, a through hole is formed in the clamping member, and the clamping member is connected to the mounting portion by the screw. After the copper wires of the lead wires are tiled on the mounting part, the clamping piece is fixed on the mounting part through the screw.

In the above-mentioned plug, the holder is square grip tab, have two restriction holder pivoted spacing fender shoulders on the casing, spacing fender shoulders set up in the both sides of grip tab relatively, have outstanding boss on two spacing fender shoulders respectively, the tight structure of foretell clamp be the boss.

In the above-mentioned plug, the pins include a mounting portion and a connecting portion, both of which are sheet-shaped, and the mounting portion and the connecting portion are vertically disposed. The plug has compact structure inside the shell and directional pins. According to the invention, the mounting part and the connecting part of the pin are vertically arranged, so that the normal mounting direction of the connecting part is ensured, and the mounting part can present a mounting surface arranged on the water surface, thereby enabling the copper wires of the lead to be laid and unfolded on the mounting part, and improving the convenience of clamping and mounting between the clamping piece and the mounting part.

In the above-mentioned plug, the connecting portion and the mounting portion are twisted or bent from the same material. The connecting part and the mounting part of the pin are twisted or bent into vertical arrangement through the same material, and other structures are not needed, so that the pin is simple in structure and convenient to mount, and the same material is better in conductivity.

In the above-mentioned plug, the connecting portion is provided with a latch near a lateral direction of the mounting portion and/or a lateral direction of the mounting portion, or one end of the mounting portion away from the connecting portion is provided with a mounting foot bent reversely to a plane.

Compared with the prior art, the plug has the following advantages:

1. In the prior known technology, the copper wire is wound on the screw and then electrically connected with the pin through the screw or part of the copper wire, or is connected through welding, namely, the pin is indirectly conducted or partially conducted when the electricity is conducted to the copper wire, so that the resistance is larger, and the conductivity is influenced. According to the application, the copper wires are clamped and connected by the mounting part with the plane and the clamping piece with the plane, so that when a plurality of strands of copper wires of the lead are connected with the mounting part, the copper wires can be spread and unfolded to be in direct and full contact with the mounting part of the pin under the action of the clamping piece, and the conductive performance of the connection of the lead and the pin is greatly improved.

2. In order to meet the characteristic, the connection between the pins and the wires is usually limited to a screw or welding connection mode, and the pins are only prevented from falling off although the pins are also connected by adding an electric connection column. The invention forms the connecting part which keeps the same direction of the original pin and the installation part which forms an included angle with the connecting part after twisting or bending the pin by an angle, thus not only keeping the original compact installation structure, but also having larger contact area with the copper wire of the lead wire on the premise of not adding other structures on the installation part which is provided with a plane after twisting or bending, thereby not only simplifying the structure, but also further improving the conductivity and the connection stability of the plug.

3. In the conventional technology, the copper wire is wound on the screw, and when the screw rotates, the copper wire rotates along with the screw, the copper wire is easy to scatter, the contact of the copper wire and the pins is less, the connection stability of the copper wire and the pins cannot be ensured, and the conductivity is poor. In the application, the clamping piece and the clamping structure are arranged separately, and when the clamping structure presses the clamping piece on the mounting part, the clamping piece cannot be started along with the clamping structure, so that the copper wire between the mounting part and the clamping piece can be kept in a preset position to be fully contacted with the mounting part. According to the application, the mounting part and the clamping piece are limited to rotate in the horizontal direction by the additionally arranged limiting stop shoulder, and meanwhile, the copper wire is prevented from extending out of the mounting part of the pin, so that the copper wire is ensured to be fully contacted with the pin, and the conductivity is further improved.

4. The applicant adds a slightly protruding bulge on the mounting part or/and the clamping piece to further prevent the wire from being separated from the pin, and ensure that the mounting part of the copper wire and the pin can be fully and stably contacted

Drawings

Fig. 1 is a schematic perspective view of a socket according to the present invention.

Fig. 2 is a schematic view of the internal structure of the socket of fig. 1 according to the present invention.

Fig. 3 is a schematic view of the pin installation in the housing according to the present invention.

Fig. 4 is a schematic perspective view of a pin according to the present invention.

Fig. 5 is a schematic view of another structure of the pin of the present invention.

Fig. 6 is a schematic perspective view of a clamping member according to the present invention.

Fig. 7 is a schematic diagram of a pin after installation in a sixth embodiment of the present invention.

Fig. 8 is a schematic diagram of a pin structure in a sixth embodiment of the present invention.

Fig. 9 is a schematic structural view of a ninth embodiment of the present invention.

In the figure, 1, a shell, 11, a limiting stop shoulder, 12, a boss, 13, a lead-out port, 14, an installation position, 2, a pin, 2a, a latch, 21, an installation part, 21a, a threaded hole, 21b, a plane, 21c, an installation pin, 22, a connecting part, 23, a torsion part, 3, a clamping piece, 3a, a plane, 31, a bulge, 32, a through hole, 4, a screw, 5 and a wire.

Detailed Description

The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

Embodiment one:

As shown in fig. 1 to 3, the plug of the present invention comprises a housing 1 and a pin 2, wherein the outer end of the pin 2 is a connection part 22 for connecting with a socket, the inner end of the pin 2 is a mounting part 21 arranged in the housing 1 for connecting with a wire 5, and a clamping member 3 and a clamping structure for pressing the clamping member 3 on the mounting part 21 are also arranged in the housing 1.

As shown in fig. 4, the pin 2 comprises a mounting part 21 and a connecting part 22 which are both sheet-shaped, the connecting part 22 and the mounting part 21 are formed by twisting the same plate material by one angle, as a preferable scheme of the embodiment, the mounting part 21 is arranged vertically to the connecting part 22, a plane 21b for horizontally leaning a plurality of strands of copper wires of the wire 5 is formed on the mounting part 21, and a threaded hole 21a penetrating the plane 21b is formed on the mounting part 21. For convenience of torsion, a torsion portion 23 having a smaller plate width than the connection portion 22 and the mounting portion 21 is provided between the mounting portion 21 and the connection portion 22.

As shown in fig. 6, the clamping member 3 in this embodiment is a sheet-shaped square clamping piece, a through hole 32 is formed in the middle of the clamping piece, the aperture of the through hole 32 is larger than that of the threaded hole 21a, and one side of the clamping piece is a plane 3a for clamping the copper wire of the wire 5.

The housing 1 is provided with a mounting position 14 for mounting the mounting part 21 of the pin 2, a leading-out opening 13 for leading the connecting part 22 of the pin 2 to extend out of the housing 1, and a limiting stop shoulder 11 for limiting the rotation of the clamping piece 3. The width of the outlet 13 is smaller than the width of the mounting portion 21 of the pin 2. After the two pins 2 are mounted on the housing 1, the plane 21b of the mounting part 21 of the pins 2 is horizontally arranged on the mounting position 14, the limiting stop shoulder 11 can limit the rotation of the mounting part 21, the connecting part 22 of the pins 2 extends vertically, the connecting parts 22 of the two pins 2 are arranged in parallel, and the torsion part 23 or the mounting part 21 is positioned on one side of the connecting part 22 to directly prevent the pins 2 from falling out of the outlet 13.

The clamping structure in this embodiment includes a screw 4 and a screw hole 21a provided in the mounting portion 21. When the lead 5 is connected with the pin 2, a plurality of strands of copper wires on the lead 5 are spread and spread on the plane 21b of the mounting part 21, the plurality of strands of copper wires can fully contact with the mounting part 21 along the plane 21b of the mounting part 21, the plane 3a of the clamping piece is flatly pressed on the plurality of copper wires, the through holes 32 are aligned with the threaded holes 21a, and the screws 4 pass through the through holes 32 from above the clamping piece and are connected with the threaded holes 21a, so that the clamping piece is pressed on the mounting part 21. In this embodiment, two limiting stop shoulders 11 are preferably arranged, the limiting stop shoulders 11 are respectively located at two opposite lateral directions of the clamping piece 3, the limiting stop shoulders 11 play a role in positioning the mounting portion 21 in the mounting process, copper wires can be prevented from being scattered out of the mounting portion 21, rotation of the clamping piece 3 is limited, and therefore copper wires of the conducting wires 5 are guaranteed to be fully contacted according to preset requirements, and conductivity is improved.

Embodiment two:

As shown in fig. 5, the structure and principle of the present embodiment are basically the same as those of the first embodiment, except that the mounting portion 21 of the pin 2 has a protrusion 31 slightly protruding from the plane 21b, and as a further optimization, the protrusion 31 is in a strip shape, and the extending direction of the protrusion 31 is perpendicular to the extending direction of the copper wire. While ensuring that the copper wire can fully contact with the plane 21b of the mounting part 21, the clamping force of the clamping piece 3 and the mounting part 21 on the copper wire is improved by additionally arranging the slightly protruding bulge 31 on the plane 21b, and the connection stability of the lead 5 and the pin 2 is improved, so that the conductivity of the pin 2 is ensured.

Embodiment III:

As shown in fig. 6, the structure and principle of the present embodiment are basically the same as those of the first embodiment, except that the clamping member 3 has a protrusion 31 slightly protruding from the plane 3a, and as a further optimization, the protrusion 31 is in a strip shape, and the protrusions 31 are distributed in the circumferential direction of the through hole 32. While ensuring that the copper wire can fully contact with the plane 21b of the mounting part 21, the slightly protruding protrusion 31 is additionally arranged on the plane 3a of the clamping piece 3, so that the clamping force of the clamping piece 3 and the mounting part 21 on the copper wire is improved, the connection stability of the lead 5 and the pin 2 is improved, and the conductive performance of the pin 2 is ensured.

Embodiment four:

As shown in fig. 5 and 6, the present embodiment is basically the same as the first embodiment, the second embodiment or the third embodiment in structure and principle, except that the mounting portion 21 of the pin 2 and the holder 3 have protrusions 31 protruding slightly from a plane, and the protrusions 31 are in a bar shape. As a further optimization, the mounting portion 21 has two protrusions 31, and the extending direction of the protrusions 31 is perpendicular to the extending direction of the copper wires. Two bulges 31 on the mounting part 21 are positioned on two sides of the bulges 31 on the clamping piece 3, so that three reinforced clamping is formed on the copper wire.

Fifth embodiment:

as shown in fig. 2, 3, 4 and 5, the structure and principle of the present embodiment are basically the same as those of the first embodiment, except that the end of the mounting portion 21 away from the connecting portion 22 has a mounting leg 21c bent reversely toward the plane 21b of the mounting portion 21, and the mounting leg 21c is connected to the housing 1, so as to further improve the connection stability of the pin 2.

Example six:

As shown in fig. 7 and 8, the structure and principle of the present embodiment are basically the same as those of the first embodiment, except that the mounting portion 21 and the connecting portion 22 of the pin 2 are directly bent, preferably, the connecting portion 22 is perpendicular to the plane 21b of the mounting portion 21, and the latch 2a is disposed on the side of the connecting portion 22 near the mounting portion 21, and the latch 2a is used for forming a clamping connection with the plastic housing 1, so as to further improve the connection stability of the pin 2.

Embodiment seven:

the present embodiment is basically the same in structure and principle as the sixth embodiment, except that the mounting portion 21 is laterally provided with the latch 2a.

Example eight:

The present embodiment is basically the same in structure and principle as the sixth embodiment, except that the connecting portion 22 is provided with the latch 2a in both the lateral direction near the mounting portion 21 and the lateral direction of the mounting portion 21.

Example nine:

As shown in fig. 9, the structure and principle of the present embodiment are basically the same as those of the first embodiment, except that the clamping member 3 is a square clamping piece, and a limiting shoulder 11 for limiting the rotation of the clamping member 3 is disposed at the mounting position 14 of the housing 1, the two limiting shoulders 11 are respectively located at two opposite sides of the clamping piece, protruding bosses 12 are respectively disposed on the two limiting shoulders 11, and the clamping structure is the bosses 12. After the copper wire of the lead wire 5 is laid on the flat surface 21b of the mounting portion 21, the holding piece is pushed in from the space between the boss 12 and the mounting portion 21 in the axial direction of the copper wire, and is held by the boss 12 against the mounting portion 21.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although terms such as a case are used more herein, the possibility of using other terms is not excluded. These terms are only used to more conveniently describe and explain the nature of the invention and should be construed in a manner consistent with their spirit and scope.

Claims

1. A plug, comprising a shell (1) and a plug pin (2), wherein a clamping member (3) having a plane is arranged in the shell (1), the plug pin (2) comprises a mounting portion (21) and a connecting portion (22) both of which are in the form of a sheet, the inner end of the plug pin (2) is a mounting portion (21) having a plane, and the shell (1) is also provided with a clamping structure for pressing the plane of the clamping member (3) against the plane of the mounting portion (21), characterized in that the shell (1) has two limit stop shoulders (11) capable of limiting the rotation of the mounting portion (21) and the clamping member (3), and the limit stop shoulders (11) are arranged on both sides of the clamping member (3) relatively; when the clamping member (3) is arranged on the mounting portion (21), the height of the limit stop shoulders (11) on both sides of the clamping member (3) is The mounting portion (21) of the pin (2) and the clamp (3) are both provided with a protrusion (31) slightly protruding from the plane, and the protrusion (31) is in the shape of a strip, and the two protrusions (31) on the mounting portion (21) are located on both sides of the protrusion (31) on the clamp (3), and the direction in which the protrusion (31) extends is perpendicular to the direction in which the wire extends; the housing (1) is provided with a mounting position (14) for mounting the mounting portion (21) of the pin (2); the end of the mounting portion (21) away from the connecting portion (22) is provided with a mounting foot (21c) bent and extended in the opposite direction of the plane (21b) of the mounting portion (21), and the mounting foot (21c) is inserted into the mounting hole of the mounting position (14) to form a connection with the housing (1).

2. The plug according to claim 1 is characterized in that the clamping member (3) is a square clamping piece, and the limit stop shoulder (11) is located at least on two sides of the clamping piece.

3. The plug according to claim 1 is characterized in that the clamping structure includes a screw (4) and a threaded hole (21a) opened on the mounting portion (21), and a through hole (32) is opened on the clamping member (3), and the clamping member (3) is connected to the mounting portion (21) by the screw (4).

4. The plug according to claim 1 is characterized in that the clamping member (3) is a square clamping piece, the two limit shoulders (11) are respectively provided with protruding bosses (12), and the above-mentioned clamping structure is the bosses (12).

5. The plug according to claim 1, characterized in that the mounting portion (21) and the connecting portion (22) are arranged vertically.

6. The plug according to claim 5, characterized in that the connecting portion (22) and the mounting portion (21) are formed by twisting or bending the same material.

7. The plug according to claim 6, characterized in that a latching tooth (2a) is provided on a side of the connecting portion (22) close to the mounting portion (21) and/or on a side of the mounting portion (21).