Mixing connector plug and socket capable of preventing mistaken touch

Abstract

A mixed connector plug and socket capable of preventing mistaken touch are characterized in that a plurality of conductive rings of the plug are respectively sleeved on different outer supporting surfaces, a high-frequency insertion piece and the plurality of conductive rings are arranged at intervals along the axial direction, and the convex parts of a high-frequency contact piece and a plurality of low-frequency contact pieces of the socket are also sequentially distributed along the axial direction; therefore, the high-frequency connector and the low-frequency connector can respectively realize contact transmission at different axial positions, so that the radial size of the mixed connector is effectively reduced; the outer diameter of the conducting ring farthest away from the high-frequency insertion piece is larger than the outer diameter of the conducting ring adjacent to the high-frequency insertion piece, the diameter of the inner supporting faces of the multiple low-frequency contact pieces is matched with the outer circumferential faces of the multiple conducting rings, a multi-layer cylindrical stepped structure is formed on the plug and the socket, all layers can make direct contact in the inserting process, and therefore the plug and the socket are not prone to being damaged. The low-frequency contact piece does not need to slide over the conducting rings of other levels, so that wrong contact between non-corresponding levels is avoided, meanwhile, friction loss in the sliding plugging process is reduced, and the service life of the product is prolonged.

Description

Technical Field

[0001] The present invention relates to the field of mixed connectors, and in particular to a mixed connector plug and socket capable of preventing accidental touching. Background Art

[0002] The multi-way mixed connector mixes high-frequency connectors and low-frequency connectors in a circular body, generally with multiple pins and sockets arranged on a plane. Through the plug-in connection of the plug and the socket, the setting of the device peripheral ports can be reduced, the connection of the device can be reduced, and the connection of high-frequency and low-frequency multi-way signals can be achieved with one plug-in connection. In order to ensure that the corresponding holes are connected one by one, it is necessary to set a guide key position, that is, when the plug and the socket are connected, the key position must be visually aligned first, which makes it very inconvenient for the plug and the socket to find the key position, align the hole position, and plug in. In addition, in order to accommodate high-frequency and low-frequency connectors on the plug-in surface at the same time, the radial size of the existing mixed connector is large, which is not convenient for disassembly and assembly and plug-in connection under conditions of limited space and lighting such as underground or pipeline. Summary of the invention

[0003] The object of the present invention is to provide a mixed connector plug and socket capable of preventing accidental touch, thereby reducing the radial size of the mixed connector and effectively avoiding accidental touch during insertion.

[0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a mixed connector plug capable of preventing accidental touch, comprising an insulating shell, a center contact piece is installed in the axial through hole of the insulating shell, and a conductive ring is sleeved on the outer wall of the insulating shell, the conductive rings are arranged at intervals in the axial direction, the outer diameter of the conductive ring farthest from the front end of the connector is larger than the outer diameter of the conductive ring adjacent to the front end of the connector, and a first connecting portion is provided at one end of the conductive ring, and the first connecting portion is used to realize the electrical connection between the conductive ring and the connector wire.

[0005] Preferably, the diameter of the outer peripheral surface of the conductive ring increases gradually in a direction away from the plug-in end.

[0006] Preferably, the first connecting portion is a plug welding piece arranged at one end of the conductive ring, and the plug welding piece extends to a side of the insulating housing away from the plug end.

[0007] Preferably, the outer wall of the insulating shell is provided with an outer supporting surface corresponding to the conductive ring, and the outer supporting surface is provided with a ring groove for installing the conductive ring.

[0008] Preferably, a slot matching the plug welding wire piece is provided on the outer supporting surface of the insulating shell, one end of the slot is connected to the annular groove, and the other end axially penetrates the insulating shell, so that the plug welding wire piece can extend along the slot into the axial through hole of the insulating shell away from the plug-in end.

[0009] Preferably, the conductive ring is a rolled clamp-ring structure, and the plug welding wire sheet is integrally formed and connected to the conductive ring.

[0010] Preferably, the plug welding wire sheets are evenly spaced and distributed along the circumference of the insulating shell.

[0011] A mixed connector socket capable of preventing accidental touch, comprising an insulating sleeve and an insulating support body installed inside the insulating sleeve, the insulating support body comprising a cylindrical portion and a core shaft portion along the axial direction, the inner cavity of the cylindrical portion is provided with at least two sections of inner support surfaces, at least two first contact pieces are provided on the cylindrical portion, the contact portions of the first contact pieces extend into the inner cavity of the cylindrical portion and the contact portions are spaced apart along the axial direction, so as to achieve contact and conduction with the matching contact piece, a second connecting portion is provided at one end of the first contact piece, and the second connecting portion is used to achieve electrical connection between the first contact piece and the connector wire; The core shaft portion is provided with an axial through hole which penetrates the inner cavity of the cylindrical portion, and a second contact piece which can contact with a contact piece of the adapter connector is installed in the axial through hole of the core shaft portion.

[0012] Preferably, the first contact piece is a strip-shaped contact spring arranged on the outer wall of the cylindrical portion, the first contact piece is provided with a protrusion, the outer wall of the cylindrical portion is provided with a radial through hole penetrating to the inner cavity, and the protrusion extends into the inner cavity of the cylindrical portion through the radial through hole.

[0013] Preferably, the protrusion is an arc-shaped protrusion or a spherical protrusion.

[0014] Preferably, a slot for mounting the contact spring is provided on the cylindrical portion, the width of the slot matches the width of the contact spring, and the radial through hole is located on the bottom surface of the slot.

[0015] Preferably, the second connecting portion is a socket welding wire sheet, which is integrally formed and connected with the tail end of the contact spring sheet and extends to a side of the insulating sleeve away from the plug-in end.

[0016] Preferably, the cylindrical portion is a segmented stepped cylinder, the inner cavity of the cylindrical portion is provided with at least two inner cylindrical surfaces, the outer wall of the cylindrical portion has an outer cylindrical surface corresponding to the inner cylindrical surface, and the axial position of the outer cylindrical surface corresponds to the inner cylindrical surface.

[0017] Preferably, the first contact members are evenly spaced and distributed along the circumference of the insulating support body.

[0018] Preferably, the cylindrical portion and the core shaft portion are integrally formed, and the outer diameter of the cylindrical portion is greater than the outer diameter of the core shaft portion.

[0019] Preferably, sealing rings are installed on the inner wall and outer wall of the cylindrical part away from one end of the core shaft part respectively. The sealing ring on the outer wall is used to seal the gap between the cylindrical part and the insulating sleeve, and the sealing ring on the inner wall is used to seal the gap between the cylindrical part and the plug.

[0020] According to the above technical solution, the beneficial effects of the present invention are: 1. The multiple conductive rings of the plug are respectively sleeved on different outer supporting surfaces, and the center contact piece and the multiple conductive rings are arranged at intervals in the axial direction; the raised portions of the multiple first contact pieces of the socket are respectively extended to the inner sides of the multiple sections of the inner supporting surfaces, and the core shaft portion on which the second contact piece is installed is located on one side of the cylindrical portion where the first contact piece is located in the axial direction, that is, the raised portions of the second contact piece and the multiple first contact pieces are also distributed in sequence in the axial direction; therefore, both the plug and the socket change the structure of the existing mixed connector that accommodates high-frequency and low-frequency connectors on the same mating surface at the same time, so that the high-frequency and low-frequency connectors can respectively realize contact transmission at different axial positions, thereby effectively reducing the radial size of the mixed connector.

[0021] 2. Since the outer diameter of the conductive ring farthest from the center contact is larger than the outer diameter of the conductive ring adjacent to the center contact, and the diameters of the inner supporting surfaces corresponding to the protrusions of the multiple first contact pieces also match the outer circumferential surfaces of the multiple conductive rings, a cylindrical stepped structure is formed on both the plug and the socket. When plugged in, each level can be directly contacted without the need for the protrusion of the first contact piece to slide over the conductive rings of other levels, thereby avoiding accidental contact between non-corresponding levels, reducing friction losses during sliding plug-in, and improving product life.

[0022] 3. The structure in which the outer circumferential surface of the conductive ring contacts the raised portion of the first contact piece enables multiple conductive rings to contact each other with multiple first contact pieces when the plug is plugged in at any circumferential angle relative to the socket. Therefore, the plug and the socket do not require any form of guidance and key alignment to achieve blind plugging and 360-degree rotation; the plug welding wire sheet and the socket welding wire sheet extend to the inner cavity at the end of the plug and the socket respectively, so that wire welding can be directly performed at the end of the plug and the socket, realizing visualization and maintainability of wire welding; therefore, the present invention makes the wire welding operation and plug-in use of the mixed connector more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional diagram of the plug; Figure 2 is a schematic diagram of the plug; Figure 3 is a cross-sectional view of an insulating housing; Figure 4 is a schematic diagram of a conductive ring; Figure 5 is a schematic diagram of a socket; Figure 6 is a schematic diagram of an insulating support; Figure 7 is a cross-sectional view of an insulating support; Figure 8 It is a schematic diagram of the arc-shaped protrusion contacting the spring piece; Fig. 9 Schematic diagram of the spherical protrusion contacting the spring.

[0024] Markings in the figure: 1. insulating shell, 2. center contact piece, 3. conductive ring, 4. plug welding wire piece, 5. ring groove, 6. clamping seam, 7. insulating sleeve, 8. insulating support body, 9. cylindrical part, 10. core shaft part, 11. first contact piece, 12. raised part, 13. radial through hole, 14. socket welding wire piece, 15. second contact piece, 16. clamping groove, 17. sealing ring. DETAILED DESCRIPTION

[0025] With reference to the accompanying drawings, the specific implementation is as follows: A mixed connector capable of preventing accidental touching comprises a plug and a socket. Figure 1-2 As shown, the plug includes an insulating housing 1, and a center contact 2 is interference-fitted in the axial through hole of the insulating housing 1. The mixed connector is usually a high-frequency connector and a low-frequency connector. The center contact 2 in this embodiment is a high-frequency contact. Conductive rings 3 are sleeved on the outer wall of the insulating housing 1. The conductive rings 3 are arranged at intervals along the axial direction and the number is not limited. The outer diameter of the conductive ring 3 farthest from the front end of the connector is larger than the outer diameter of the conductive ring 3 adjacent to the front end of the connector. A first connecting portion is provided at one end of the conductive ring 3, and the first connecting portion is used to realize the electrical connection between the conductive ring 3 and the connector wire.

[0026] In this embodiment, four conductive rings 3 are provided, and the outer wall of the insulating housing 1 is provided with an outer support surface corresponding to the conductive ring 3. The four conductive rings 3 are respectively sleeved on four sections of the outer support surface, and the central contact piece 2 and the four conductive rings 3 are arranged at intervals along the axial direction. Figure 1-2 As shown, in this embodiment, the diameters of the outer circumferences of the four conductive rings 3 increase successively in the direction away from the center contact piece 2, forming four cylindrical step structures. When plugged in, the four levels can directly contact each other, avoiding accidental contact between non-corresponding levels and reducing friction losses during the sliding plug-in process.

[0027] like Figure 3 As shown, the four outer support surfaces of the insulating housing 1 are respectively provided with ring grooves 5 for mounting the conductive rings 3. Figure 4As shown, the conductive ring 3 is a rolled clamping ring structure, and the conductive ring 3 can be clamped in the ring groove 5. The first connecting part is a plug welding piece 4 arranged at one end of the conductive ring 3, and the plug welding piece 4 extends to the side of the insulating housing 1 away from the plug-in end. A clamping seam 6 matching the plug welding piece 4 is also provided on the outer supporting surface, and one end of the clamping seam 6 is connected to the ring groove 5, and the other end axially penetrates the insulating housing 1. The plug welding piece 4 extends into the axial through hole of the insulating housing 1 away from the plug-in end along the clamping seam 6, so that the conductive ring 3 can be installed on the outside of the insulating housing 1, and the plug welding piece 4 can extend into the inside of the insulating housing 1 and extend to the welding wire end.

[0028] The above structure allows the center contact 2 and the four conductive rings 3 to be arranged at intervals along the axial direction, thus avoiding the situation where multiple parts are arranged separately on the same radial plane, and can reduce the radial size of the plug. Figure 2 , 4 As shown, four plug welding wire sheets 4 are evenly spaced along the circumference of the insulating shell 1, and the plug welding wire sheets 4 are integrally formed with the conductive ring 3. They are directly extended axially from the tail end of the conductive ring 3 with the same material until they extend into the inner cavity of the insulating shell 1 in a sheet-like structure, and the required shape of the plug welding wire sheet 4 is formed at the end according to the requirements of the welding wire. The inner cavity of the insulating shell 1, that is, the end of the plug, is open, so the wire can be directly welded at the end of the plug, realizing the visualization and maintainability of the wire welding.

[0029] like Figure 5-7 As shown, the socket includes an insulating sleeve 7 and an insulating support body 8 installed inside the insulating sleeve 7. The insulating support body 8 includes a cylindrical portion 9 and a core shaft portion 10 along the axial direction. The cylindrical portion 9 has an inner cavity for accommodating the plug-in end of the plug when the head seat is inserted. Four first contact pieces 11 are installed on the outer side of the cylindrical portion 9. The contact portions of the first contact pieces 11 extend into the inner cavity of the cylindrical portion 9 and are distributed at intervals along the axial direction, so as to achieve contact and conduction with the matching contact piece. A second connecting portion is provided at one end of the first contact piece 11, and the second connecting portion is used to achieve electrical connection between the first contact piece 11 and the connector wire.

[0030] The inner cavity of the cylindrical portion 9 has four coaxial inner cylindrical surfaces, which respectively match the outer circumferences of the four conductive rings 3, that is, the cylindrical portion 9 is a segmented stepped cylinder. The first contact member 11 is a strip-shaped contact spring arranged on the outer wall of the cylindrical portion 6, and the contact portion of the contact spring has a protrusion 12, such as Figure 6-7As shown, the cylindrical portion 9 has four sections of outer cylindrical surfaces, and the axial positions of the four sections of the outer cylindrical surfaces correspond to the multiple sections of the inner cylindrical surfaces respectively. A radial through hole 13 penetrating to the inner cavity is provided on the outer wall of the cylindrical portion 9, and the protrusion 12 extends into the inner cavity of the cylindrical portion 9 through the radial through hole 13, that is, the four protrusions 12 extend to the inner side of the four sections of the inner cylindrical surfaces respectively, and the protrusions 15 of the four first contact members 14 are distributed at intervals along the axial direction, and can contact with the outer circumferential surfaces of the four conductive rings 3 respectively.

[0031] like Figure 8 As shown, the raised portion 12 is an arc-shaped raised portion. Fig. 9 As shown, the protrusion 12 is a spherical protrusion, and the first contact member 11 can be any form of elastic contact body that meets the use requirements. When the contact spring is installed to the outer wall of the cylindrical portion 9, that is, the protrusion 12 extends into the radial through hole 13, a clamping ring can be set on the outer side of the cylindrical portion 9 to limit the contact spring from separating from the cylindrical portion 9. A more convenient method is to match the size of the protrusion 12 with the radial through hole 13 so that a certain radial thrust needs to be applied to the contact spring during installation to make the protrusion 12 snap into the radial through hole 13, and when the head seat is inserted and the protrusion 12 contacts the conductive ring 3, the clamping force of the radial through hole 13 on the protrusion 12 can prevent the protrusion 12 from being pushed by the conductive ring 3 and escaping from the radial through hole 13, so that the contact spring can be installed in the cylindrical portion 9 without the need for redundant parts such as a clamping ring.

[0032] The four outer cylindrical surfaces of the cylindrical portion 9 are provided with slots 16 for installing the contact springs, corresponding to the radial through holes 13. Figure 6 As shown, the lengths of the four slots 16 are different. The lengths of the slots 16 are designed according to the contact springs installed therein. When the length of the contact springs is shorter, the length of the slots 16 is shortened accordingly. The width of the slots 16 matches the width of the contact springs, so that the contact springs can be installed in the slots 16 by interference fitting. Thus, the cooperation between the protrusions 12 and the radial through holes 13 and the cooperation between the contact springs and the slots 16 ensures that the contact springs will not be separated during the insertion of the head seat.

[0033] like Figure 5-7 As shown, the cylindrical portion 9 and the core shaft portion 10 are integrally formed, the core shaft portion 10 is provided with an axial through hole that penetrates the inner cavity of the cylindrical portion 9, and a second contact 15 that can contact the center contact 2 is installed in the axial through hole of the core shaft portion 10. The above structure allows the second contact 15 and the protrusions 12 of the four first contacts 11 to be distributed in sequence along the axial direction, thus avoiding the situation where multiple parts are arranged separately on the same radial plane, and can reduce the radial size of the socket.

[0034] Since the cylindrical portion 9 makes contact through the protruding portion 12 protruding from the inner wall, and the core shaft portion 10 makes contact through the second contact piece 15 installed inside, the inner diameter of the cylindrical portion 9 is usually larger than the inner diameter of the core shaft portion 10. In order to save materials, the outer diameter of the cylindrical portion 9 is also designed to be larger than the outer diameter of the core shaft portion 10. It can be seen from the figure that the diameter of the smallest outer cylindrical surface of the cylindrical portion 9 adjacent to the core shaft portion 10 is still larger than the outer diameter of the core shaft portion 10, thereby forming a cylindrical stepped structure. When plugging in, each level can be directly contacted without the protruding portion of the first contact piece sliding over the conductive rings of other levels, thereby avoiding accidental contact between non-corresponding levels, and at the same time reducing friction loss during sliding plug-in, thereby increasing product life.

[0035] like Figure 5 As shown, the second connection part is a socket welding piece 14, which is integrally connected with the tail end of the contact spring piece and extends to the side of the insulating sleeve 7 away from the plug-in end. Usually, the socket welding piece 14 can be formed by directly bending the tail end of the contact spring piece. Since the four first contact members 11 are evenly spaced along the circumference of the insulating support body 8, the four socket welding pieces 14 are evenly spaced along the circumference of the insulating support body 8, and the wires can be directly welded at the end of the socket, realizing visualization and maintainability of wire welding.

[0036] Sealing rings 17 are installed on the inner wall and outer wall of the end of the cylindrical portion 9 away from the core shaft portion 10. The sealing ring 17 on the outer wall is used to seal the gap between the cylindrical portion 9 and the insulating sleeve 7, and the sealing ring 17 on the inner wall is used to seal the gap between the cylindrical portion 9 and the plug.

[0037] When in use, the end of the plug with the center contact 2 installed is first inserted into the inner hole of the socket. When the center contact 2 and the second contact 15 are in contact with each other, the protrusions 12 of the four first contacts 11 will also contact the four conductive rings 3 respectively. Therefore, the plug and the socket do not need any form of guidance and key alignment, and can achieve blind insertion and 360-degree rotation. In addition, by forming a multi-level cylindrical stepped structure on both the plug and the socket, each level can be directly contacted during insertion without the need for the protrusion 12 of the first contact 11 to slide over the conductive rings 3 of other levels, reducing the friction loss during the sliding insertion process, and effectively avoiding the first contact 11 and the conductive ring 3 between non-corresponding levels from accidentally contacting each other during insertion.

Claims

1. A mixed connector plug capable of preventing accidental touching, characterized in that: The invention comprises an insulating shell (1), wherein a center contact piece (2) is installed in an axial through hole of the insulating shell (1), and a conductive ring (3) is sleeved on the outer wall of the insulating shell (1), wherein the conductive rings (3) are arranged at intervals along the axial direction, wherein the outer diameter of the conductive ring (3) farthest from the front end of the connector is larger than the outer diameter of the conductive ring (3) adjacent to the front end of the connector, and wherein a first connecting portion is provided at one end of the conductive ring (3), wherein the first connecting portion is used to realize electrical connection between the conductive ring (3) and the connector wire.

2. A mixed connector plug capable of preventing accidental touch according to claim 1, characterized in that: The diameter of the outer peripheral surface of the conductive ring (3) increases gradually in a direction away from the plug-in end.

3. The mixed-assembly connector capable of preventing accidental touch according to claim 1, characterized in that: The first connection portion is a plug welding piece (4) arranged at one end of the conductive ring (3), and the plug welding piece (4) extends to a side of the insulating housing (1) away from the plug end.

4. A mixed connector capable of preventing accidental touch according to any one of claims 1 to 3, characterized in that: An outer wall of the insulating housing (1) is provided with an outer supporting surface corresponding to the conductive ring (3), and a ring groove (5) for mounting the conductive ring (3) is provided on the outer supporting surface.

5. A mixed connector capable of preventing accidental touch according to claim 4, characterized in that: A slot (6) matching the plug welding wire sheet (4) is provided on the outer supporting surface of the insulating housing (1); one end of the slot (6) is connected to the annular groove (5), and the other end axially penetrates the insulating housing (1), so that the plug welding wire sheet (4) can extend along the slot (6) into the axial through hole of the insulating housing (1) away from the plug-in end.

6. The mixed-assembly connector capable of preventing accidental touch according to claim 3, characterized in that: The conductive ring (3) is a rolled clamping ring structure, and the plug welding wire sheet (4) is integrally formed and connected to the conductive ring (3).

7. The mixed-assembly connector capable of preventing accidental touch according to claim 3, characterized in that: The plug welding wire sheets (4) are evenly spaced and distributed along the circumference of the insulating housing (1).

8. A mixed connector socket capable of preventing accidental touch, characterized in that: The insulating support (8) comprises an insulating sleeve (7) and an insulating support body (8) installed inside the insulating sleeve (7), wherein the insulating support body (8) comprises a cylindrical portion (9) and a core shaft portion (10) along the axial direction, the inner cavity of the cylindrical portion (9) is provided with at least two sections of inner support surfaces, and at least two first contact pieces (11) are provided on the cylindrical portion (9), the contact portions of the first contact pieces (11) extend into the inner cavity of the cylindrical portion (9) and the contact portions are spaced apart along the axial direction, thereby achieving contact and conduction with a matching contact piece, and a second connecting portion is provided at one end of the first contact piece (11), and the second connecting portion is used to achieve electrical connection between the first contact piece (11) and a connector wire; The core shaft portion (10) is provided with an axial through hole which penetrates the inner cavity of the cylindrical portion (9), and a second contact piece (15) which can contact with a contact piece of the adapter connector is installed in the axial through hole of the core shaft portion (10).

9. The mixed-assembly connector capable of preventing accidental touch according to claim 8, characterized in that: The first contact piece (11) is a strip-shaped contact spring arranged on the outer wall of the cylindrical portion (9), the first contact piece (11) is provided with a protrusion (12), the outer wall of the cylindrical portion (9) is provided with a radial through hole (13) penetrating to the inner cavity, and the protrusion (12) extends into the inner cavity of the cylindrical portion (9) through the radial through hole (13).

10. The mixed-assembly connector capable of preventing accidental touch according to claim 9, characterized in that: The raised portion (12) is an arc-shaped raised portion or a spherical raised portion.

11. The mixed-assembly connector capable of preventing accidental touch according to claim 9, characterized in that: The cylindrical portion (9) is provided with a slot (16) for mounting a contact spring, the width of the slot (16) matches the width of the contact spring, and the radial through hole (13) is located on the bottom surface of the slot (16).

12. The mixed-assembly connector capable of preventing accidental touch according to claim 9, characterized in that: The second connection portion is a socket welding piece (14), which is integrally formed and connected to the tail end of the contact spring and extends to a side of the insulating sleeve (7) away from the plug-in end.

13. The mixed-assembly connector capable of preventing accidental touch according to claim 8, characterized in that: The cylindrical portion (9) is a segmented stepped cylinder. The inner cavity of the cylindrical portion (9) is provided with at least two inner cylindrical surfaces. The outer wall of the cylindrical portion (9) has an outer cylindrical surface corresponding to the inner cylindrical surface. The axial position of the outer cylindrical surface corresponds to the inner cylindrical surface.

14. The mixed-assembly connector capable of preventing accidental touch according to claim 8, characterized in that: The first contact pieces (11) are evenly spaced and distributed along the circumference of the insulating support body (8).

15. The mixed-assembly connector capable of preventing accidental touch according to claim 8, characterized in that: The cylindrical portion (9) and the core shaft portion (10) are integrally formed, and the outer diameter of the cylindrical portion (9) is greater than the outer diameter of the core shaft portion (10).

16. The mixed-assembly connector capable of preventing accidental touch according to claim 8, characterized in that: Sealing rings (17) are respectively installed on the inner wall surface and the outer wall surface of the cylindrical portion (9) at one end away from the core shaft portion (10); the sealing ring (17) on the outer wall surface is used to seal the gap between the cylindrical portion (9) and the insulating sleeve (7); and the sealing ring (17) on the inner wall surface is used to seal the gap between the cylindrical portion (9) and the plug.

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