A plug

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, and 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 vertically arranged with 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 with the plug pin and form a direct connection, and the connection stability and conductivity are good.

Description

Technical Field

[0001] The invention belongs to the technical field of electric components and relates to a plug. Background Art

[0002] The power plug used in daily life usually refers to a male connector in the shape of a rod or copper plate, including a shell and a pin. One end of the pin extends out of the shell, and the other end is set in the shell. The wire extends into the shell and is directly or indirectly connected to the pin. Regarding the connection between the wire and the pin, the conventional connection methods disclosed are generally divided into: (1) winding the copper wire of the wire on a screw, and then connecting the screw to the pin; (2) directly welding the copper wire of the wire to the pin. The above connection methods are not only inconvenient to connect and disassemble, but also prone to poor contact, affecting the conductive performance.

[0003] In view of the above situation of the existing plug, the applicant of the Chinese patent [patent number ZL200820045981.1, application date April 6, 2008] disclosed a "plug", including a plug housing and at least two conductive plugs, two conductive connecting posts are arranged in the plug housing, one end of the conductive connecting post is fixedly connected to the conductive plug by a fastener, and the other end is fixedly connected to the wire by a fastener. The disclosed technical solution allows the wire to be directly inserted into the conductive post for connection by adding a conductive connecting post. However, the wire is blindly inserted into the conductive connecting post, and it is difficult to determine whether the wire is connected in place after the screw is rotated; the wire and the conductive post are laterally clamped by the screw, the contact surface between the wire and the conductive connecting post is small and the contact is unstable, which affects the conductive performance; the conductive connecting post is required between the wire and the conductive plug to indirectly form an electrical connection, which affects the conductive performance. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems in the prior art and to propose a plug. The technical problem to be solved by the present invention is to improve the conductive performance of the plug.

[0005] The objective of the present invention can be achieved through the following technical solutions: A plug, comprising a shell and a plug pin, characterized in that a clamping member with a plane is arranged in the shell, the inner end of the plug pin is a mounting portion with a plane, and a clamping structure is also arranged in the shell to press the plane of the clamping member onto the plane of the mounting portion.

[0006] When the wire is connected to the pin located in the shell, several strands of copper wire on the wire are horizontally spread out and laid flat on the plane of the mounting portion, and then the side of the clamping member with the plane is pressed above the copper wire, and the clamping member is pressed onto the mounting portion through the clamping structure. Because the mounting portion is a plane connected to the wire, several strands of copper wire can be fully spread out and contact with the mounting portion, which increases the contact area between the wire and the pin, reduces resistance, and thus improves the conductive performance of the wire and the pin. The clamping member and the clamping structure are two separate structures, and the clamping member is pressed onto the mounting portion through the clamping structure. The clamping member can remain stationary during the installation process, so the several strands of copper wire arranged between the clamping member and the mounting portion can maintain the preset position unchanged, further ensuring that the several strands of copper wire are in full contact with the mounting portion of the pin, thereby improving the conductive performance.

[0007] In the above-mentioned plug, the plane of the mounting portion and / or the plane of the clamping member has a slightly protruding protrusion. While ensuring that the copper wire can fully contact the mounting portion, by adding a slightly protruding protrusion on the plane, the clamping force of the clamping member and the mounting portion on the copper wire is improved, and the stability of the connection between the wire and the pin is improved, thereby ensuring the conductive performance of the pin.

[0008] In the above-mentioned plug, the protrusion is in the shape of a strip, and the strip-shaped protrusion has a clamping effect on a plurality of copper wires, further improving the stability of the connection between the wire and the plug pin.

[0009] In the above-mentioned plug, the housing has a limit stop shoulder for limiting the rotation of the clamping member. The limit stop shoulder is provided, and when the clamping member is pressed onto the mounting portion, the clamping member does not rotate without manual operation, thereby preventing the copper wire preset between the clamping member and the mounting portion from rotating, thereby ensuring that the copper wire is fully in contact with the mounting portion and improving the conductive performance.

[0010] In the above-mentioned plug, the clamping member is a square clamping piece, and the limit stop shoulders are at least located on two sides of the clamping piece.

[0011] In the above-mentioned plug, the clamping structure includes a screw and a threaded hole formed on the mounting portion, the clamping member is provided with a through hole, and the clamping member is connected to the mounting portion by means of screws. After the copper wire of the conductor is laid flat on the mounting portion, the clamping member is fixed to the mounting portion by means of screws.

[0012] In the above-mentioned plug, the clamping member is a square clamping plate, and the shell has two limit shoulders for limiting the rotation of the clamping member. The limit shoulders are relatively arranged on both sides of the clamping plate, and the two limit shoulders have protruding bosses respectively. The above-mentioned clamping structure is the bosses.

[0013] In the above-mentioned plug, the pin includes a mounting portion and a connecting portion both in the form of a sheet, and the mounting portion and the connecting portion are arranged vertically. The internal structure of the plug shell is compact, and the arrangement of the pin is directional. The present invention arranges the mounting portion and the connecting portion of the pin vertically, and at the same time ensures the normal installation direction of the connecting portion, so that the mounting portion can present an installation surface arranged on the water surface, so that the copper wire of the conductor can be laid out flatly and arranged on the mounting portion, and at the same time, the convenience of clamping and installing the clamping member and the mounting portion is improved.

[0014] In the above-mentioned plug, the connection part and the mounting part are twisted or bent from the same material. The connection part and the mounting part of the pin are twisted or bent from the same material to be vertically arranged without other structures, which not only has a simple structure and is easy to install, but also has better conductivity of the same material.

[0015] In the above-mentioned plug, the side of the connecting portion close to the mounting portion and / or the side of the mounting portion are provided with latching teeth, or the mounting portion has a mounting foot bent in the opposite direction to the plane at one end away from the connecting portion.

[0016] Compared with the prior art, the plug of the present invention has the following advantages:

[0017] 1. In the prior art, the copper wire is mostly wound around the screw and then electrically connected to the pin through the screw or part of the copper wire, or connected by welding, that is, the electrical conduction from the pin to the copper wire is indirect conduction or part of the copper wire conduction, which has a large resistance and affects the conductive performance. However, the present application connects the copper wire by clamping the mounting portion with a plane and the clamping member with a plane, so when the multiple copper wires of the conductor are connected to the mounting portion, the copper wire can be spread out flat under the action of the clamping member to directly and fully contact the mounting portion of the pin, which greatly improves the conductive performance of the connection between the conductor and the pin.

[0018] 2. The existing plug is a compact structure. To meet this characteristic, the connection between the pin and the wire is usually limited to screw or welding. Although there is also a way to connect by adding an electrical connection column, it only serves to prevent the pin from falling off. The present invention twists or bends the pin at an angle to form a connecting portion that keeps the original pin direction consistent and a mounting portion that forms an angle with the connecting portion. It not only maintains the original compact installation structure; but also the mounting portion with a plane after twisting or bending has a larger contact area with the copper wire of the wire without adding other structures. It not only simplifies the structure, but also further improves the conductivity of the plug and the stability of the connection.

[0019] 3. In conventional technology, the copper wire is wound around the screw. When the screw rotates, the copper wire will rotate with the screw, and the copper wire is easy to spread out. The copper wire has little contact with the pin, the stability of the connection between the copper wire and the pin cannot be guaranteed, and the conductivity is poor. In the present application, the clamping member and the clamping structure are separately arranged. When the clamping structure presses the clamping member on the mounting part, the clamping member will not move with the clamping structure. Therefore, the copper wire between the mounting part and the clamping member can be kept in a preset position and fully contact with the mounting part. The present application can prevent the copper wire from extending out of the mounting part of the pin while limiting the rotation of the mounting part and the clamping member in the horizontal direction by adding a limit stop shoulder, thereby ensuring that the copper wire is in full contact with the pin and further improving the conductivity.

[0020] 4. Spread the copper wire flat between the mounting portion and the clamping piece. The mounting portion and the clamping piece can directly apply clamping force to all the copper wires, so the connection between the wire and the pin is more stable. As a further optimization, the applicant adds a slightly protruding protrusion on the mounting portion and / or the clamping piece to further prevent the wire from being separated from the pin and ensure that the copper wire and the mounting portion of the pin can fully and stably contact each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the socket of the present invention.

[0022] Figure 2 The socket of the present invention Figure 1 Schematic diagram of the internal structure.

[0023] Figure 3 It is a schematic diagram of the structure in which the pins are installed in the housing in the present invention.

[0024] Figure 4 It is a three-dimensional structural schematic diagram of the pins in the present invention.

[0025] Figure 5 It is another structural schematic diagram of the pins in the present invention.

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the clamping member in the present invention.

[0027] Figure 7 It is a schematic diagram of the structure after the pins are installed in the sixth embodiment of the present invention.

[0028] Figure 8 It is a schematic diagram of the structure of the pins in the sixth embodiment of the present invention.

[0029] Fig. 9 It is a structural diagram of embodiment 9 of the present invention.

[0030] In the figure, 1, shell; 11, limit stop shoulder; 12, boss; 13, lead-out port; 14, mounting position; 2, pin; 2a, latch; 21, mounting portion; 21a, threaded hole; 21b, plane; 21c, mounting foot; 22, connecting portion; 23, torsion portion; 3, clamping member; 3a, plane; 31, protrusion; 32, through hole; 4, screw; 5, wire. DETAILED DESCRIPTION

[0031] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0032] Embodiment 1:

[0033] like Figures 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 connecting portion 22 for connecting to a socket, and the inner end of the pin 2 is a mounting portion 21 arranged in the housing 1 for connecting to a wire 5. A clamping member 3 and a clamping structure for pressing the clamping member 3 on the mounting portion 21 are also arranged in the housing 1.

[0034] like Figure 4 As shown, the pin 2 includes a mounting portion 21 and a connecting portion 22, both of which are in the form of a sheet. The connecting portion 22 and the mounting portion 21 are formed by twisting the same plate at an angle. As a preferred solution of this embodiment, the mounting portion 21 and the connecting portion 22 are arranged vertically, and a plane 21b is formed on the mounting portion 21 for a plurality of copper wires of the conductor 5 to be horizontally attached. A threaded hole 21a penetrating the plane 21b is also provided on the mounting portion 21. To facilitate twisting, a twisting portion 23 is provided between the mounting portion 21 and the connecting portion 22, the width of which is smaller than that of the connecting portion 22 and the mounting portion 21.

[0035] like Figure 6 As shown, the clamping member 3 in this embodiment is a sheet-shaped square clamping piece, a through hole 32 is opened in the middle of the clamping piece, the aperture of the through hole 32 is larger than the aperture of the threaded hole 21a, and one side of the clamping piece is a flat surface 3a for clamping the copper wire of the conductor 5.

[0036] The housing 1 is provided with a mounting position 14 for mounting the mounting portion 21 of the pin 2, a connection portion 22 of the pin 2 extending out of the outlet 13 of the housing 1, and a stop shoulder 11 for limiting the rotation of the clamp 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 to the housing 1, the plane 21b of the mounting portion 21 of the pin 2 is horizontally arranged on the mounting position 14, and the stop shoulder 11 can limit the rotation of the mounting portion 21; the connection portion 22 of the pin 2 extends vertically, and the connection portions 22 of the two pins 2 are arranged in parallel; the torsion portion 23 or the mounting portion 21 is located on the side of the connection portion 22 to directly prevent the pin 2 from coming out of the outlet 13.

[0037] The clamping structure in this embodiment includes a screw 4 and a threaded hole 21a provided on the mounting portion 21. When the wire 5 is connected to the pin 2, the copper wires on the wire 5 are spread out and laid flat on the plane 21b of the mounting portion 21. The copper wires can fully contact the mounting portion 21 along the plane 21b of the mounting portion 21. The plane 3a of the clamping piece is pressed flat on the copper wires. The through hole 32 is aligned with the threaded hole 21a. The screw 4 passes through the through hole 32 from above the clamping piece and connects with the threaded hole 21a, pressing the clamping piece onto the mounting portion 21. In this embodiment, two limit stop shoulders 11 are preferably provided. The limit stop shoulders 11 are respectively located at two opposite sides of the clamping member 3. During the installation process, the limit stop shoulders 11 not only play a positioning role for the mounting portion 21, but also can prevent the copper wires from spreading out of the mounting portion 21, and also limit the rotation of the clamping member 3, thereby ensuring that the copper wires of the wire 5 are fully in contact according to the preset requirements, thereby improving the conductivity.

[0038] Embodiment 2:

[0039] like Figure 5 As shown, the structure and principle of this 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 that slightly protrudes from the plane 21b. As a further optimization, the protrusion 31 is in a strip shape, and the direction in which the protrusion 31 extends is perpendicular to the direction in which the copper wire extends. While ensuring that the copper wire can fully contact the plane 21b of the mounting portion 21, by adding a slightly protruding protrusion 31 on the plane 21b, the clamping force of the clamping member 3 and the mounting portion 21 on the copper wire is increased, and the stability of the connection between the wire 5 and the pin 2 is improved, thereby ensuring the conductive performance of the pin 2.

[0040] Embodiment three:

[0041] like Figure 6 As shown, the structure and principle of this 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 strip-shaped and distributed in the circumference of the through hole 32. While ensuring that the copper wire can fully contact the plane 21b of the mounting portion 21, by adding a slightly protruding protrusion 31 on the plane 3a of the clamping member 3, the clamping force of the clamping member 3 and the mounting portion 21 on the copper wire is improved, and the stability of the connection between the wire 5 and the pin 2 is improved, thereby ensuring the conductive performance of the pin 2.

[0042] Embodiment 4:

[0043] like Figure 5 and Figure 6As shown, the structure and principle of this embodiment are basically the same as those of the first embodiment, the second embodiment, or the third embodiment, except that: the mounting portion 21 of the pin 2 and the clamping member 3 both have a protrusion 31 that slightly protrudes from the plane, and the protrusion 31 is in the shape of a strip. As a further optimization solution, the mounting portion 21 has two protrusions 31, and the direction in which the protrusion 31 extends is perpendicular to the direction in which the copper wire extends. The two protrusions 31 on the mounting portion 21 are located on both sides of the protrusion 31 on the clamping member 3, forming a three-fold reinforced clamping of the copper wire.

[0044] Embodiment five:

[0045] like Figure 2 , 3 As shown in , 4 and 5, the structure and principle of this 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 foot 21c bent in the opposite direction to the plane 21b of the mounting portion 21, and the mounting foot 21c is connected to the shell 1, further improving the stability of the connection of the pin 2.

[0046] Embodiment six:

[0047] like Figure 7 and Figure 8 As shown, the structure and principle of this 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, and preferably, the connecting portion 22 is perpendicular to the plane 21b of the mounting portion 21, and a latch 2a is provided on the side of the connecting portion 22 close to the mounting portion 21, and the latch 2a is used to form a latch connection with the plastic housing 1, thereby further improving the stability of the connection of the pin 2.

[0048] Embodiment seven:

[0049] The structure and principle of this embodiment are basically the same as those of the sixth embodiment, except that a latching tooth 2 a is provided on the side of the mounting portion 21 .

[0050] Embodiment eight:

[0051] The structure and principle of this embodiment are basically the same as those of the sixth embodiment, except that: latch teeth 2 a are provided on the side of the connecting portion 22 close to the mounting portion 21 and on the side of the mounting portion 21 .

[0052] Embodiment nine:

[0053] like Fig. 9As shown, the structure and principle of this embodiment are basically the same as those of the first embodiment, except that: the clamping member 3 is a square clamping piece, and a limit stop shoulder 11 for limiting the rotation of the clamping member 3 is provided at the mounting position 14 of the housing 1, and the two limit stop shoulders 11 are respectively located on the opposite sides of the clamping piece, and the two limit stop shoulders 11 are respectively provided with protruding bosses 12, and the above-mentioned clamping structure is the boss 12. After the copper wire of the conductor 5 is laid on the plane 21b of the mounting portion 21, the clamping piece is pushed into the space between the boss 12 and the mounting portion 21 along the axial direction of the copper wire, and is clamped and pressed on the mounting portion 21 by the boss 12.

[0054] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0055] Although the term "box" is used more frequently in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A plug, comprising a housing (1) and a plug pin (2), wherein a clamping member (3) having a plane is arranged in the housing (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 the mounting portion (21) having a plane, and a clamping structure is further arranged in the housing (1) for pressing the plane of the clamping member (3) against the plane of the mounting portion (21), characterized in that: The housing (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) in a relative manner; when the clamping member (3) is arranged on the mounting portion (21), the limit stop shoulders (11) on both sides of the clamping member (3) are higher than the clamping member (3); the mounting portion (21) of the pin (2) and the clamping member (3) both have protrusions (31) slightly protruding from the plane, and the protrusions (31) are in the shape of strips, and the two limit stop shoulders (11) on the mounting portion (21) are arranged on the mounting portion (21). The protrusions (31) are located on both sides of the protrusion (31) on the clamping member (3), and the direction in which the protrusions (31) extend is perpendicular to the direction in which the wires extend; a mounting position (14) for mounting a mounting portion (21) of a plug pin (2) is provided on the housing (1); the end of the mounting portion (21) away from the connecting portion (22) has a mounting foot (21c) bent and extended in the direction opposite to 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, characterized in that: The clamping piece (3) is a square clamping piece, and the limit stop shoulders (11) are located at least on two sides of the clamping piece.

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

4. The plug according to claim 1, characterized in that: The clamping member (3) is a square clamping piece, and the two limit stop 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: The connecting portion (22) is provided with latch teeth (2a) on the side close to the mounting portion (21) and / or on the side of the mounting portion (21).

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