Plugs, sockets and electrical connectors

Abstract

The present invention discloses a plug, a socket and an electrical connector. The plug comprises a first substrate, wherein a groove is formed at one end of the first substrate toward the other end opposite thereto, the cross-sectional area of ​​the end face of the opening end of the groove is larger than the cross-sectional area of ​​the bottom of the groove, and a plurality of pins are arranged in the groove, wherein one end of the pin is fixed to the inner bottom face of the groove, and the other end extends away from the opening end of the groove; the socket comprises a second substrate and a protrusion, wherein one end of the protrusion is fixed to the end face of the second substrate as a whole, and the other end extends away from the second substrate, and a socket is arranged on the protrusion, and the length direction of the socket is consistent with the extension direction of the protrusion, the protrusion is used for plugging into the groove, and the socket is used for plugging into the pin; the electrical connector comprises a plug and a socket, the protrusion is used for plugging into the groove, and the pin is used for being inserted into the socket and electrically connected to the contact in the socket, so that the connection between the plug and the socket is tight, the waterproof performance is good and the service life is long.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic devices, and in particular to a plug, a socket and an electrical connector. Background Art

[0002] Electrical connectors generally include plugs and sockets, which are usually suitable for a variety of applications. The most widely used is the connection between two electronic devices. Among the electrical connectors currently used, the most commonly used is the circular connector, that is, the plug-in form is a straight-tube type. The tightness of the connection between the plug and the socket depends on the tightness of the dimensions at both ends of the connector. However, this traditional plug-in form has poor connection tightness and poor waterproof performance. After multiple times, due to the wear of the connector itself, the connection will be loose, resulting in unstable connection and affecting the performance of the equipment. Summary of the invention

[0003] The object of the present invention is to provide a plug, a socket and an electrical connector to solve the problems existing in the above-mentioned prior art, so that the connection between the plug and the socket is tight, the waterproof performance is good and the service life is long.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a plug, comprising a first base, wherein a groove is formed at one end of the first base toward the other end opposite thereto, the cross-sectional area of ​​the end surface of the open end of the groove is larger than the cross-sectional area of ​​the bottom of the groove, and a plurality of pins are arranged in the groove, wherein one end of the pin is fixed to the bottom surface of the groove, and the other end extends away from the open end of the groove.

[0006] Preferably, it also includes a shell, and the first substrate is a cube, the outer peripheral curved surface of the first substrate is transitionally processed, the shell is sleeved on the outer periphery of the first substrate, one side of the shell is open, and the opening direction of the shell is consistent with the opening direction of the groove, the inner wall opposite to the open end of the shell is fixed as a whole with the side wall of the first substrate, and the end face of the first substrate away from the bottom of the groove is flush with the open end of the shell.

[0007] Preferably, a longitudinal section of the groove is an isosceles trapezoid, and the groove penetrates the first substrate in a thickness direction of the first substrate.

[0008] Preferably, the length of the pin is not greater than the height of the groove.

[0009] The present invention provides a socket, comprising a second base and a protrusion, wherein one end of the protrusion is fixed to the end surface of the second base as a whole, and the other end extends in a direction away from the second base, and a socket is provided on the protrusion, and the length direction of the socket is consistent with the extension direction of the protrusion, the protrusion is used to be plugged into the groove in the plug in any one of the above technical solutions, and the socket is used to be plugged into the pin in the plug in any one of the above technical solutions.

[0010] Preferably, the second substrate is a cube, and the outer peripheral curved surface of the second substrate is subjected to transition treatment.

[0011] Preferably, the longitudinal section of the protrusion is an isosceles trapezoid, and the bottom surface where the long base of the isosceles trapezoid is located is fixed with the end surface of the second substrate to form a connecting surface, and the edges on the connecting surface parallel to the base of the isosceles trapezoid extend to both ends of the long base of the isosceles trapezoid.

[0012] The present invention also provides an electrical connector, comprising a plug according to any one of the above technical solutions and a socket according to any one of the above technical solutions, wherein the protrusion is used to be plugged into the groove, and the pin is used to be inserted into the jack and electrically connected to the contacts in the jack, the end of the plug away from the groove is used to connect a cable, and the end of the socket away from the protrusion is used to connect electrical components.

[0013] Preferably, the protrusion is interference-connected with the groove, and the thickness of the protrusion is greater than the thickness of the groove, and the thickness of the protrusion is less than the distance between two opposite inner walls of the shell in the thickness direction of the protrusion.

[0014] Preferably, after the protrusion is inserted into the groove, the plug and the socket form a cube, and each side wall of the plug and the corresponding side wall of the socket are respectively on the same plane.

[0015] Compared with the prior art, the present invention has achieved the following technical effects:

[0016] The plug provided by the present invention comprises a first substrate, wherein a groove is formed at one end of the first substrate toward the other end opposite thereto, and the groove can protect the plug pin and the socket inside thereof, thereby improving the waterproof performance, and the cross-sectional area of ​​the end surface of the opening end of the groove is larger than the cross-sectional area of ​​the groove bottom, thereby increasing the contact area between the plug and the socket, thereby increasing the friction force and improving the tightness of the connection, and a plurality of plug pins are arranged in the groove, wherein one end of the plug pin is fixed to the inner bottom surface of the groove, and the other end extends away from the opening end of the groove, and the plug pin is a common plug pin in the existing electrical connector, and can cooperate with the socket on the socket to form a contact body, so as to realize the circuit connection, and facilitate the subsequent cooperation between the plug and the socket;

[0017] The socket provided by the present invention comprises a second base and a protrusion, the second base and the protrusion are integrally formed to improve the strength of the overall structure, one end of the protrusion is fixed to the end surface of the second base as a whole, and the other end extends in a direction away from the second base, and can cooperate with the above-mentioned groove and be embedded in the groove, so that the pin and the socket are protected in the protrusion and the groove, and the waterproof performance is improved. The protrusion is provided with a socket, which is a common socket in the existing electrical connector, and its internal structure and working principle are the same as those of the socket in the existing electrical connector. The length direction of the socket is consistent with the extension direction of the protrusion, the protrusion is used to be plugged into the groove, and the socket is used to be plugged into the pin, so that when the protrusion is embedded in the groove, the pin can be inserted into the socket and electrically connected to the contact in the socket, thereby ensuring the electrical connection between the plug and the socket;

[0018] The electrical connector provided by the present invention includes a plug and a socket, the protrusion is used to be plugged into the groove, and the pin is used to be inserted into the jack and electrically connected to the contact in the jack, one pin corresponds to one jack, so that after the protrusion is inserted into the groove, the pin is inserted into the jack, and the connection part between the pin and the jack is protected inside the groove by the cooperation of the protrusion and the groove, thereby preventing water from entering the jack and affecting the service life, and the cooperation of the protrusion and the groove increases the contact area between the plug and the socket, increases the friction force, and ensures the tightness of the connection between the plug and the socket, the end of the plug away from the groove is used to connect the cable, and the end of the socket away from the protrusion is used to connect the electrical component, thereby completing the electrical connection between the cable and the electrical component. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 is a cross-sectional view of the electrical connector provided in the third embodiment;

[0021] Figure 2 is a cross-sectional view of the plug provided in the first embodiment;

[0022] Figure 3 is a cross-sectional view of the socket provided in the second embodiment;

[0023] In the figure: 1-plug, 11-shell, 12-first base, 13-groove, 2-socket, 21-second base, 22-protrusion, 3-pin, 4-hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] The object of the present invention is to provide a plug, a socket and an electrical connector to solve the technical problems that the existing plug and socket have poor tightness and waterproof performance and short service life.

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Embodiment 1

[0028] like Figure 2 As shown, this embodiment provides a plug, including a first substrate 12, and a groove 13 is opened at one end of the first substrate 12 toward the other end opposite thereto. The groove 13 can protect the pin 3 and the socket 4 on its inner side, thereby improving the waterproof performance. The cross-sectional area of ​​the end surface of the open end of the groove 13 is larger than the cross-sectional area of ​​the groove bottom of the groove 13, thereby increasing the contact area between the plug 1 and the socket 4, thereby increasing the friction force and improving the tightness of the connection. A plurality of pins 3 are arranged in the groove 13, one end of the pin 3 is fixed to the inner bottom surface of the groove 13, and the other end extends away from the open end of the groove 13. The pin 3 is a common pin in the existing electrical connector, which can cooperate with the socket 4 on the socket 2 to form a contact body to realize circuit connection, and facilitate the subsequent connection of the plug 1 with the socket 2, so that the pin 3 and the socket 4 can cooperate.

[0029] Specifically, it also includes a shell 11, a first substrate 12 is a cube, and the outer peripheral curved surface of the first substrate 12 is transitionally processed. The shell 11 is sleeved on the outer periphery of the first substrate 12 to protect its internal insulators, contacts and other components from being damaged. One side of the shell 11 is open, and the opening direction of the shell 11 is consistent with the opening direction of the groove 13, which is convenient for connection with the socket 2. The inner wall opposite to the open end of the shell 11 is fixed as a whole with the side wall of the first substrate 12 to ensure the stable connection between the shell 11 and the first substrate 12, and the end face of the first substrate 12 away from the bottom of the groove 13 is flush with the open end of the shell 11.

[0030] The longitudinal section of the groove 13 is an isosceles trapezoid, and the groove 13 penetrates the first substrate 12 in the thickness direction of the first substrate 12, which is convenient for the installation of the plug 1 and the socket 2. Since the hole 4 must correspond to the pin 3, in order to facilitate the processing of the hole 4, the size of the protrusion 22 is slightly larger, so a certain gap is left in the shell 11 of the plug 1 to facilitate the insertion of the protrusion 22.

[0031] The length of the pin 3 is not greater than the height of the groove 13 , which can prevent the pin 3 from being exposed outside the housing 11 , thereby affecting the safety of the pin 3 , causing the pin 3 to be easily worn and affecting the electrical connection between the pin 3 and the socket 4 .

[0032] Embodiment 2

[0033] like Figure 3 As shown, this embodiment provides a socket, including a second base 21 and a protrusion 22. The second base 21 and the protrusion 22 are integrally formed to improve the strength of the overall structure. One end of the protrusion 22 is fixed to the end surface of the second base 21 as a whole, and the other end extends in a direction away from the second base 21, and can cooperate with the groove 13 and be embedded in the groove 13, so that the pin 3 and the socket 4 are protected in the protrusion 22 and the groove 13, and the waterproof performance is improved. The protrusion 22 is provided with a socket 4, which is a common socket in the existing electrical connector. Its internal structure and working principle are the same as those of the socket in the existing electrical connector. The length direction of the socket 4 is consistent with the extension direction of the protrusion 22. The protrusion 22 is used to be plugged into the groove 13, and the socket 4 is used to be plugged into the pin 3. Therefore, when the protrusion 22 is embedded in the groove 13, the pin 3 can be inserted into the socket 4 and electrically connected to the contact in the socket 4, thereby ensuring the electrical connection between the plug 1 and the socket 2.

[0034] Specifically, the second substrate 21 is a cube, and the outer peripheral curved surface of the second substrate 21 is transitionally processed. More preferably, an annular flange is provided on the outer periphery of the second substrate and the convex connection surface, which can further improve the waterproof performance.

[0035] The longitudinal section of the protrusion 22 is an isosceles trapezoid, that is, the protrusion 22 is wedge-shaped, and the bottom surface where the long base of the isosceles trapezoid is located is fixed with the end surface of the second base 21 to form a connecting surface, and the edges on the connecting surface parallel to the base of the isosceles trapezoid extend to both ends of the long base of the isosceles trapezoid, so that the outer wall of the protrusion 22 does not directly contact the outside world, but is wrapped by the shell 11 and the inner wall of the groove 13. While improving the tightness of the connection between the socket 2 and the plug 1, it also enhances the waterproof performance of the electrical connector and extends the service life. In addition, the front end of the protrusion 22 is low, the amount of air entering the bottom is small, and the air resistance generated at the bottom is small. Therefore, it is not easy for air to enter, and the connection is firm. The wedge-shaped contact area is large, the static friction is large, and the connection is firm. The shape of the groove 13 corresponds to the shape of the protrusion 22, which can enable the protrusion 22 to be embedded in the groove 13.

[0036] Embodiment 3

[0037] like Figure 1As shown, the present embodiment also provides an electrical connector, including the plug 1 in the first embodiment and the socket 2 in the second embodiment, the protrusion 22 is used to be plugged into the groove 13, and the pin 3 is used to be inserted into the jack 4 and electrically connected to the contact in the jack 4, one pin 3 corresponds to one jack 4, so that after the protrusion 22 is inserted into the groove 13, the pin 3 is inserted into the jack 4, and the connection part between the pin 3 and the jack 4 is protected inside the groove 13 by the cooperation between the protrusion 22 and the groove 13, so as to prevent water from entering the jack 4 and affecting the service life, and the cooperation between the protrusion 22 and the groove 13 increases the contact area between the plug 1 and the socket 2, increases the friction force, and ensures the tightness of the connection between the plug 1 and the socket 2, the end of the plug 1 away from the groove 13 is used to connect the cable, and the end of the socket 2 away from the protrusion 22 is used to connect the electrical components, so as to complete the electrical connection between the cable and the electrical components.

[0038] Specifically, the protrusion 22 and the groove 13 are connected by interference fit, so that after the protrusion 22 is embedded in the groove 13, the protrusion 22 and the groove 13 are tightly connected, thereby ensuring the stability of the connection between the pin 3 and the socket 4, and preventing excessive contact resistance due to a gap between the pin 3 and the socket 4, which affects the electrical performance indicators of the electrical connector. The thickness of the protrusion 22 is greater than the thickness of the groove 13, and is smaller than the gap between the two inner walls of the shell 11 that are consistent with the thickness direction of the protrusion 22, thereby ensuring that when the plug 1 and the socket 2 are mated and connected, the protrusion 22 can be easily inserted into the groove 13.

[0039] After the protrusion 22 is inserted into the groove 13, the plug 1 and the socket 2 form a cube, and each side wall of the plug 1 and the corresponding side wall of the socket 2 are respectively on the same plane, ensuring the integrity and aesthetics of the electrical connector.

[0040] The present specification uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A plug, characterized in that: The first substrate comprises a first base, wherein a groove is formed at one end of the first base toward the other end thereof, wherein the cross-sectional area of ​​the end surface of the opening end of the groove is larger than the cross-sectional area of ​​the groove bottom, and a plurality of pins are arranged in the groove, wherein one end of the pin is fixed to the inner bottom surface of the groove, and the other end extends away from the opening end of the groove; It also includes a shell, and the first substrate is a cube, the outer peripheral curved surface of the first substrate is transitionally processed, the shell is sleeved on the outer periphery of the first substrate, one side of the shell is open, and the opening direction of the shell is consistent with the opening direction of the groove, the inner wall opposite to the open end of the shell is fixed as a whole with the side wall of the first substrate, and the end surface of the first substrate away from the bottom of the groove is flush with the open end of the shell.

2. The plug according to claim 1, characterized in that: The longitudinal section of the groove is an isosceles trapezoid, and the groove penetrates the first substrate in the thickness direction of the first substrate.

3. The plug according to claim 1, characterized in that: The length of the pin is not greater than the height of the groove.

4. A socket, characterized in that: It comprises a second base and a protrusion, one end of the protrusion is fixed to the end surface of the second base as a whole, and the other end extends in a direction away from the second base, and a socket is provided on the protrusion, the length direction of the socket is consistent with the extension direction of the protrusion, the protrusion is used to be plugged into the groove in the plug of any one of claims 1 to 3, and the socket is used to be plugged into the pin in the plug of any one of claims 1 to 3.

5. The socket according to claim 4, characterized in that: The second base body is a cube, and the outer peripheral curved surface of the second base body is subjected to transition treatment.

6. The socket according to claim 5, characterized in that: The longitudinal section of the protrusion is an isosceles trapezoid, and the bottom surface where the long base of the isosceles trapezoid is located is fixed with the end surface of the second substrate to form a connecting surface, and the edges on the connecting surface parallel to the base of the isosceles trapezoid extend to both ends of the long base of the isosceles trapezoid.

7. An electrical connector, characterized in that: It comprises a plug as claimed in any one of claims 1 to 3 and a socket as claimed in any one of claims 4 to 6, wherein the protrusion is used to be plugged into the groove, and the pin is used to be inserted into the socket and electrically connected to the contact in the socket, the end of the plug away from the groove is used to connect to a cable, and the end of the socket away from the protrusion is used to connect to an electrical component.

8. The electrical connector according to claim 7, characterized in that: The protrusion is interference-connected with the groove, and the thickness of the protrusion is greater than the thickness of the groove, and the thickness of the protrusion is less than the distance between two opposite inner walls of the shell in the thickness direction of the protrusion.

9. The electrical connector according to claim 8, characterized in that: After the protrusion is inserted into the groove, the plug and the socket form a cube, and each side wall of the plug and the corresponding side wall of the socket are respectively on the same plane.

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