A connector structure for ring network cabinet

Abstract

The present invention provides a connector structure for a ring network cabinet, comprising: a female connector having a cable therein; a male connector having a contact pin therein, the contact pin having a needle head, the needle head including a plurality of needle head arc pieces, and the two arc surfaces of each needle head arc piece having a plurality of conductive filaments to increase the contact area with the cable. The present invention effectively increases the contact area between the female connector and the male connector by adding a plurality of needle head arc pieces to the contact pin and arranging a plurality of conductive filaments on the two arc surfaces of each needle head arc piece. This design not only improves the conductive performance between the contact pin and the cable, but also significantly enhances the pull-out resistance between the cable and the needle head.

Description

Technical Field

[0001] The invention relates to the field of connectors, and in particular to a connector structure used for a ring network cabinet. Background Art

[0002] In the existing ring main unit connector structure, some technical difficulties are often encountered when performing connection operations. Specifically, when the contact pin is inserted into the cable for connection, due to the relatively small contact area between the two, this will lead to a series of problems. First, because the small contact area cannot ensure sufficient electrical contact, it affects the stable transmission of current. Secondly, poor pull-out resistance is also a significant problem. The small contact area makes the connection point easier to loosen when pulled by external force, and may even cause connection failure. These problems not only affect the stability and reliability of the equipment, but may also bring safety hazards. Therefore, when designing and manufacturing ring main unit connectors, special attention should be paid to these issues and corresponding improvement measures should be taken.

[0003] The information disclosed in the background technology section of the present invention is only intended to deepen the understanding of the general background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to those skilled in the art. Summary of the invention

[0004] Based on this, it is necessary to provide a connector structure for ring network cabinets to address the problems existing in the current connector structure for ring network cabinets, which increases the contact area between the female connector and the male connector, thereby improving the conductivity between the contact pin and the cable, and significantly enhances the pull-out resistance between the cable and the needle.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A connector structure for a ring network cabinet comprises: a female end connector having a cable therein; a male end connector having a contact pin therein, wherein the contact pin has a needle head, and the needle head comprises a plurality of needle head arc pieces, and the two arc surfaces of each needle head arc piece have a plurality of conductive filaments to increase the contact area with the cable.

[0007] Furthermore, the needle arc piece has a first state and a second state; in the first state, the front end of the needle arc piece is recessed inwardly along the radial direction; in the second state, the front end of the needle arc piece is recessed outwardly along the radial direction, and the needle arc piece is in a twisted state.

[0008] Furthermore, the female end connector has a top connection block; the contact needle further includes: a contact section, which is fixedly connected to the inside of the male end connector, the contact section has a mounting platform, and the front end of the needle can be rotatably mounted on the mounting platform; a rotating cylinder, which can be rotatably mounted to the rear end of the contact section and is sleeved on the periphery of the mounting platform and contacts with the outer surface of the front end of the needle, and the outer peripheral surface of the rear end of the rotating cylinder is provided with a spirally arranged control groove, and the control groove is connected to the rear end surface of the rotating cylinder 205, and the top connection block can be inserted into the control groove so that the rotating cylinder rotates around its own axis, thereby driving the front end of the needle to rotate around its own axis.

[0009] Furthermore, the outer peripheral surface of the front end of the rotating drum is provided with a rotating drum annular groove, the rear end of the contact segment has an extension portion extending in the radial direction, the outer edge of the rear end surface of the extension portion has a sliding flange extending backward, and the sliding flange is inclined radially inward along the direction from front to rear and can be inserted into the rotating drum annular groove so that the rotating drum can rotate relative to the contact segment around the axis of the contact segment.

[0010] Furthermore, the contact needle further comprises: a flexible sleeve, two ends of which are respectively fixed to the rear end surface of the extension portion and the front end surface of the rotating cylinder, and the flexible sleeve can be twisted.

[0011] Furthermore, the mounting platform has a plurality of mounting holes, which are connected to the outer circumferential surface of the mounting platform; the needle further includes: a rotating member, which can be rotatably mounted in the mounting hole, and a portion of the outer circumferential surface of the rotating member can protrude outward from the mounting hole in a radial direction to contact the inner surface of the rotating cylinder.

[0012] Furthermore, the rotating member is formed in a tapered shape, and the diameter of the front end thereof is larger than the diameter of the rear end thereof.

[0013] Furthermore, the female end connector comprises: a female end housing, a front end surface of which is provided with a plurality of top connection rings extending forward, and an outer peripheral surface of the top connection ring is provided with the top connection block.

[0014] Furthermore, the male end connector includes: a male end first shell; a male end second shell, which is fixed in the male end first shell; a fixing assembly, which can be rotatably mounted on the rear end of the male end first shell and can be threadedly connected to the front end of the female end shell.

[0015] Furthermore, the rear end of the male end first housing has a male end ring groove, and the front end of the fixing component has a rotating ring, and the rotating ring is inserted into the male end ring groove.

[0016] The beneficial effects of the present invention are:

[0017] The present invention effectively increases the contact area between the female end connector and the male end connector by adding multiple needle arc pieces to the contact pin and arranging multiple conductive filaments on the two arc surfaces of each needle arc piece. This design not only improves the conductivity between the contact pin and the cable, but also significantly enhances the pull-out resistance between the cable and the needle. Through this innovative design, the present invention ensures the stability and reliability of the connector structure in practical applications, thereby improving the performance and life of the entire ring main unit system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a connector structure for a ring main unit of the present invention;

[0019] Figure 2 for Figure 1 3D exploded view of

[0020] Figure 3 It is a cross-sectional view of a connector structure for a ring main unit of the present invention;

[0021] Figure 4 for Figure 2 A partial enlarged view of the middle A;

[0022] Figure 5 for Figure 3 A partial enlarged view of point B in the middle;

[0023] Figure 6 is a schematic diagram of the structure of the contact pin;

[0024] Figure 7 for Figure 6 3D exploded view of

[0025] Figure 8 is a partial cross-sectional view of a contact pin;

[0026] Fig. 9 It is a structural schematic diagram of the contact section;

[0027] Fig.10 It is a schematic diagram of the structure of the drum;

[0028] Fig.11 Schematic diagram of the twisting state of the needle arc piece;

[0029] Fig.12 is a schematic diagram of the first state of the needle arc piece;

[0030] Fig.13 Schematic diagram of the second state of the needle arc piece.

[0031] in:

[0032] 101, male end connector; 102, female end connector; 1011, male end first housing; 10111, male end first housing first mounting portion; 10112, male end first housing second mounting portion; 1012, male end ring groove; 10121, boss; 1013, fixing assembly; 10132, male end internal thread; 1014, rotating ring; 10141, groove; 1015, male end second housing; 10151, mounting plate; 1016, first limiting space; 1021, cable fixing assembly; 1022, locking end; 1023, female end housing ; 1024, female end external thread; 1025, top connection ring; 1026, top connection block; 1027, connecting part; 200, contact needle; 201, needle head; 2011, needle head arc piece; 2012, rotating member; 2013, conductive filament; 202, contact section; 2021, sliding flange; 2022, extension part; 2023, second limiting space; 2024, mounting table; 203, mounting hole; 204, flexible sleeve; 205, rotating drum; 2051, rotating drum ring groove; 2052, control groove; 300, cable; 301, connecting line. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0034] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0035] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] Combine the following Figures 1 to 13 The connector structure for a ring main unit of the present invention is described.

[0037] For the convenience of describing the positional relationship, one side of the male end connector 101 is defined as the front side, and one side of the female end connector 102 is defined as the rear side.

[0038] like Figure 1 , Figure 2 , Figure 3 , Figure 7 and Fig.12 As shown, an embodiment of the present invention provides a connector structure for a ring main unit, including: a female end connector 102 and a male end connector 101 .

[0039] like Figure 1 and Figure 3 As shown, the female end connector 102 has a cable 300 inside, and the cable 300 includes a plurality of connecting wires 301 inside.

[0040] like Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, the male end connector 101 has a plurality of contact pins 200 inside, and the contact pin 200 has a needle head 201 , and the needle head 201 includes a plurality of needle head arc pieces 2011 , and the two arc surfaces of each needle head arc piece 2011 have a plurality of conductive filaments 2013 to increase the contact area with the cable 300 .

[0041] The embodiment of the present invention effectively increases the contact area between the female end connector 102 and the male end connector 101 by adding multiple needle arc pieces 2011 to the contact needle 200 and arranging multiple conductive filaments 2013 on the two arc surfaces of each needle arc piece 2011. This design not only improves the conductivity between the contact needle 200 and the cable 300, but also significantly enhances the pull-out resistance between the cable 300 and the needle 201. Through this innovative design, the present invention ensures the stability and reliability of the connector structure in practical applications, thereby improving the performance and life of the entire ring main unit system.

[0042] In an exemplary embodiment, the needle arc piece 2011 has a first state and a second state.

[0043] In the first state, the front end of the needle arc piece 2011 is recessed inwardly along the radial direction (see Fig.12 ).

[0044] In the second state, the front end of the needle arc piece 2011 is recessed outward along the radial direction (see Fig.13 ), and the needle arc piece 2011 is in a twisted state (see Fig.11 ).

[0045] like Figure 2 , Figure 3 and Figure 5 As shown, the male end connector 101 includes: a male end first housing 1011 , a male end second housing 1015 and a fixing assembly 1013 .

[0046] like Figure 3 and Figure 5 As shown, the male end first shell 1011 includes a hollow male end first shell first mounting portion 10111 and a male end first shell second mounting portion 10112, the male end first shell first mounting portion 10111 and the male end first shell second mounting portion 10112 are formed as a whole, and the inner diameter of the male end first shell first mounting portion 10111 is smaller than the inner diameter of the male end first shell second mounting portion 10112.

[0047] The first mounting portion 10111 of the male end first housing is used to mount the male end second housing 1015, and the second mounting portion 10112 of the male end first housing is used to mount the fixing assembly 1013 (see Figure 3 ).

[0048] like Figure 3 and Figure 5 As shown, the rear end of the second mounting portion 10112 of the male end first housing has a male end annular groove 1012, and one end of the fixing assembly 1013 is rotatably mounted in the male end annular groove 1012, so that the fixing assembly 1013 can rotate around the axis of the male end annular groove 1012 (i.e., the axis of the male end first housing 1011). Specifically, as Figure 5 As shown, the inner surface of the male end ring groove 1012 has a boss 10121 protruding inward, and the boss 10121 cooperates with the groove 10141 described below to limit the movement of the fixing assembly 1013 in the front-to-back direction.

[0049] like Figure 3As shown, the male second housing 1015 is coaxially arranged and fixedly connected with the male first housing 1011. The front end of the male second housing 1015 is fixedly connected to the inner surface of the first mounting portion 10111 of the male first housing, and the rear end of the male second housing 1015 passes through the second mounting portion 10112 of the male first housing.

[0050] like Figure 3 As shown, a mounting plate 10151 is provided in the middle of the male second housing 1015, and the mounting plate 10151 is used to mount a plurality of contact pins 200. Specifically, the mounting plate 10151 has a plurality of first through holes, and the contact pins 200 are mounted on the first through holes.

[0051] The front end of the fixing assembly 1013 has a rotating ring 1014, which is fixedly connected to the fixing assembly 1013 and rotates synchronously. The rotating ring 1014 is inserted into the male end ring groove 1012 and has a groove 10141 corresponding to the boss 10121. The boss 10121 is inserted into the groove 10141 to limit the movement of the fixing assembly 1013 in the front-to-back direction (i.e., axial direction). The rear end of the fixing assembly 1013 has a male end internal thread 10132. The rear end of the fixing assembly 1013 and the rear end of the male end second housing 1015 form a first limiting space 1016 (for matching, see Figure 3 ), the first limiting space 1016 is used to plug the front end of the female end shell 1023 described below and the connecting part 1027 of the cable fixing assembly 1021.

[0052] like Figure 3 As shown, the female end connector 102 includes a female end housing 1023 , a cable fixing assembly 1021 and a locking end 1022 .

[0053] The front end of the female housing 1023 has a female external thread 1024, which can be matched with the male internal thread 10132 at the rear end of the fixing assembly 1013, so that the fixing assembly 1013 can be threadedly connected with the front end of the female housing 1023, so that the fixing assembly 1013 can be screwed to the female housing 1023. The cable 300 is arranged inside the female housing 1023.

[0054] The cable fixing assembly 1021 is installed at the front end of the female housing 1023. The cable fixing assembly 1021 has a plurality of second through holes. The second through holes penetrate the cable fixing assembly 1021 in the front-to-back direction. The connecting wire 301 inside the cable 300 passes through the second through holes of the cable fixing assembly 1021 and is fixed on the second through holes of the cable fixing assembly 1021. The cable fixing assembly 1021 has an annular connecting portion 1027. The connecting portion 1027 is inserted into the first limiting space 1016. The outer surface of the connecting portion 1027 is fixedly connected to the inner surface of the front end of the female housing 1023 to fix the cable fixing assembly 1021 on the female housing 1023.

[0055] In order to further ensure the stability and safety of the cable 300, the edge of the second through hole of the cable fixing component 1021 can also be provided with anti-slip texture or protrusions, which can enhance the friction between the connecting wire 301 and the second through hole, and prevent loosening or falling off due to accidental pulling. At the same time, this design also facilitates the user to plug and unplug the cable, improving the convenience of use.

[0056] In addition, considering the environmental factors such as vibration and shock that may be encountered in actual applications, the material selection of the cable fixing assembly 1021 and the female end housing 1023 is also very important. They are usually made of high-strength and high-toughness engineering plastics or metal materials to ensure stable performance and reliability in harsh working environments.

[0057] like Figure 2 and Figure 4 As shown, the locking end 1022 is fixed to the front end of the cable fixing assembly 1021, and the front end surface of the locking end 1022 has a top connection ring 1025 extending forward, and the outer peripheral surface of the top connection ring 1025 has a top connection block 1026. The connecting wire 301 inside the cable 300 passes through the locking end 1022 and is roughly flush with the front end surface of the locking end 1022.

[0058] The top connecting ring 1025 is used to guide the needle head 201 of the contact needle 200 described below to be inserted into the connecting wire 301 of the cable 300 to ensure the accuracy and reliability of the connection.

[0059] The top contact block 1026 is used to be inserted into the control groove 2052 at the rear end of the rotating drum 205 described below, so that the rotating drum 205 can rotate around its own axis during the insertion process.

[0060] like Figures 6 to 8 As shown, the contact needle 200 comprises: a contact section 202 , a needle head 201 , a flexible sleeve 204 and a rotating cylinder 205 , wherein the contact section 202 is located in front of the needle head 201 .

[0061] like Figure 8 and Fig. 9As shown, the contact segment 202 is cylindrical, and the rear end of the contact segment 202 has an extension portion 2022 extending outwardly along the radial direction, and the outer edge of the rear end surface of the extension portion 2022 has an annular sliding flange 2021 extending backward.

[0062] The rear end face of the extension portion 2022 has a mounting platform 2024 extending backwards, and the mounting platform 2024 is located on the inner side of the sliding flange 2021 in the radial direction. The extension portion 2022 is installed in the first through hole of the mounting plate 10151 to fix the contact pin 200 on the male end second shell 1015.

[0063] The sliding flange 2021 is inclined radially inwardly from front to back and its thickness gradually decreases. The rear end of the sliding flange 2021 can be inserted into the drum annular groove 2051 described below, so that the drum 205 can rotate relative to the contact section 202 around the axis of the contact section 202. Correspondingly, the drum annular groove 2051 is formed as an inclined groove opening forward.

[0064] Although in Figure 8 and Fig. 9 In the implementation scheme, the sliding flange 2021 is arranged at an angle, but the sliding flange 2021 can also be formed into other shapes. Here, the shape of the sliding flange 2021 can be flexibly adjusted according to actual needs. Whether it is a straight line, a curve or other complex shapes, as long as it can ensure effective cooperation with the drum ring groove 2051 and meet the expected rotation and stability performance, it can be used as an alternative solution.

[0065] Since the sliding flange 2021 is inclined radially inwardly from the front to the rear and is annular, the sliding flange 2021 can enclose a second limiting space 2023 (see Figure 8 ), the second limiting space 2023 is used to install a part of the rotating drum 205 and the flexible sleeve 204.

[0066] like Fig. 9 As shown, the mounting platform 2024 has a plurality of mounting holes 203, and the mounting holes 203 are connected to the outer peripheral surface of the mounting platform 2024. The mounting platform 2024, the sliding flange 2021 and the extension portion 2022 are formed as one body.

[0067] like Figure 8As shown, the flexible sleeve 204 is annular and is installed in the second limiting space 2023. The front end of the flexible sleeve 204 is fixed to the rear end face of the extension portion 2022, and the rear end of the flexible sleeve 204 is fixed to the front end face of the rotating drum 205. The rotating drum 205 is connected to the extension portion 2022 through the flexible sleeve 204, and the flexible sleeve 204 can be twisted so that the rotating drum 205 can rotate relative to the contact section 202. In addition, if there is no flexible sleeve 204, the rotating drum 205 is only connected to the contact section 202 through the rotating drum annular groove 2051 and the sliding flange 2021. Factors such as shaking will cause the rotating drum 205 to easily rotate relative to the contact section 202. The existence of the flexible sleeve 204 can avoid this situation.

[0068] like Figure 8 As shown, the drum 205 is sleeved on the periphery of the mounting platform 2024, and the outer peripheral surface of the front end of the drum 205 is provided with a drum annular groove 2051 (see Figure 8 and Fig.10 ), the sliding flange 2021 is inserted into the drum annular groove 2051 so that the drum 205 can rotate relative to the contact segment 202 around the axis of the contact segment 202.

[0069] like Figure 8 and Fig.10 As shown, the outer peripheral surface of the rear end of the rotating drum 205 is provided with a control groove 2052 corresponding to the top connection block 1026 of the female end connector 102.

[0070] The control groove 2052 is spirally arranged on the outer circumference of the rear end of the drum 205 so that the top contact block 1026 of the female end connector 102 can push the drum 205 to rotate around the axis of the drum 205 .

[0071] The control groove 2052 is connected to the rear end surface of the rotating drum 205, so that the top block 1026 of the female end connector 102 can be smoothly inserted into the control groove 2052, making the entire rotation control process smoother and more reliable. Specifically, when the top block 1026 slides along the control groove 2052, it can apply a backward force to the control groove 2052, and this force can drive the rotating drum 205 to rotate around the axis of the rotating drum 205.

[0072] like Fig.11 and Fig.12 As shown, the needle 201 includes a rotating member 2012 , three needle arc pieces 2011 and a plurality of conductive filaments 2013 .

[0073] The rotating member 2012 can be rotatably mounted in the mounting hole 203 of the mounting table 2024, the rotating member 2012 can rotate relative to the mounting hole 203 around the axis of the mounting hole 203, and a portion of the outer circumferential surface of the rotating member 2012 can protrude outward from the mounting hole 203 in the radial direction to contact the inner surface of the rotating drum 205. Specifically, the protruding portion of the rotating member 2012 can be in close contact with the inner surface of the rotating drum 205 to transmit the torque of the rotating drum 205 to the rotating member 2012.

[0074] The rotating component 2012 is usually made of metal materials with high strength and wear resistance, such as stainless steel or alloy steel, so as to effectively withstand high loads and frequent rotation operations.

[0075] In an exemplary embodiment, Fig.11 As shown, the rotating member 2012 is formed into a cone, and the diameter of the front end of the rotating member 2012 is larger than the diameter of the rear end of the rotating member 2012, so as to prevent the rotating member 2012 from moving in the front-back direction, and ensure that the rotating member 2012 will not accidentally disengage from the mounting hole 203. Of course, in addition to the cone, the rotating member 2012 can also be other shapes, such as a cylindrical shape, and an annular clamping platform is provided on the outer peripheral surface of the rotating member 2012, and correspondingly, a slide groove is provided on the inner surface of the mounting hole 203, and the clamping platform can be rotatably inserted in the slide groove to prevent the rotating member 2012 from disengaging from the mounting hole 203.

[0076] The front end of the needle arc piece 2011 is connected to the rotating member 2012 to ensure smooth mechanical and electrical connection between the two. The needle arc piece 2011 has two arc surfaces, on which a plurality of conductive filaments 2013 are fixed, and the conductive filaments 2013 are directly electrically connected to the mounting platform 2024 of the contact section 202. Fig.12 and Fig.13 The rotating member 2012 is only provided with three needle arc pieces 2011, but the number of the needle arc pieces 2011 can be adjusted according to the situation, for example, it can be set to any number between 3 and 6.

[0077] The needle arc piece 2011 and the conductive filament 2013 can be inserted into the corresponding connecting wire 301 of the cable 300 under the guidance of the top connecting ring 1025 .

[0078] The operation of the connector structure for a ring main unit of the present invention will be described below with reference to the accompanying drawings.

[0079] In the initial state (ie, the first state), the needle arc piece 2011 is in the mounting hole 203 of the mounting platform 2024 as shown in FIG. Fig.12The front end of the needle arc piece 2011 is recessed inwardly along the radial direction, thereby enabling the contact needle 200 to be better inserted into the connecting wire 301 of the cable 300 .

[0080] When the male end connector 101 and the female end connector 102 need to be connected, the male end connector 101 is first moved close to the female end connector 102 .

[0081] When the male connector 101 contacts the female connector 102, the fixing assembly 1013 is rotated so that the male internal thread 10132 of the fixing assembly 1013 cooperates with the female external thread 1024 of the female housing 1023, so as to screw the fixing assembly 1013 of the male connector 101 and the female housing 1023 of the female connector 102 together. In the process of rotating the fixing assembly 1013, due to the cooperation between the rotating ring 1014 and the male ring groove 1012, the male first housing 1011 and the male second housing 1015 will not rotate around the axis of the fixing assembly 1013 with the fixing assembly 1013, so as to prevent the needle 201 from rotating around the axis of the fixing assembly 1013 with the fixing assembly 1013, thereby ensuring that the needle is always aligned with the connecting line 301 of the cable 300 and accurately inserted.

[0082] During the process of rotating the fixing assembly 1013, the male connector 101 is still close to the female connector 102, so that the needle arc piece 2011 and the conductive filament 2013 of the needle 201 begin to be inserted into the connecting wire 301 inside the cable 300, so that the conductive filament 2013 contacts the connecting wire 301, thereby electrically connecting the conductive filament 2013 to the connecting wire 301.

[0083] As the needle 201 is gradually inserted, the top block 1026 will enter the control groove 2052 at the rear end of the drum 205. Since the control groove 2052 is spirally arranged, the drum 205 rotates relative to the contact section 202 around the axis of the drum 205 (i.e., the axis of the contact section 202).

[0084] During the rotation of the drum 205 relative to the contact section 202, the inner surface of the drum 205 drives the three rotating members 2012 to rotate around the axis of the drum 205 through friction until the front end of the needle arc piece 2011 is recessed outward along the radial direction (see FIG. Fig.13 ), in addition, since the rear end of the needle arc piece 2011 is a free end, the needle arc piece 2011 is in a twisted state (see Fig.11). At this time, the needle arc piece 2011 is in the second state. The front end of the needle arc piece 2011 is recessed outward along the radial direction, and the needle arc piece 2011 exists in a twisted form, which can enhance the connection performance of the female end connector 102 and the male end connector 101. During the rotation of the rotating drum 205 relative to the contact section 202 around the axis of the rotating drum 205, the flexible sleeve 204 will be twisted to avoid interfering with the rotation of the rotating drum 205.

[0085] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0086] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A connector structure for a ring main unit, characterized in that: include: A female connector (102) having a cable (300) therein; A male end connector (101) having a contact pin (200) therein, the contact pin (200) having a needle head (201), the needle head (201) comprising a plurality of needle head arc pieces (2011), and two arc surfaces of each needle head arc piece (2011) having a plurality of conductive filaments (2013) to increase a contact area with the cable (300); The needle arc piece (2011) has a first state and a second state; In the first state, the front end of the needle arc piece (2011) is recessed inwards along the radial direction; In the second state, the front end of the needle arc piece (2011) is recessed outwards along the radial direction, and the needle arc piece (2011) is in a twisted state; The female end connector (102) has a top connection block (1026); The contact pin (200) further comprises: A contact section (202) fixedly connected to the interior of the male end connector (101), the contact section (202) having a mounting platform (2024), and a front end of the needle (201) being rotatably mounted on the mounting platform (2024); A rotating drum (205) is rotatably mounted to the rear end of the contact section (202) and is sleeved on the periphery of the mounting platform (2024), and is in contact with the outer surface of the front end of the needle (201). The outer peripheral surface of the rear end of the rotating drum (205) is provided with a spirally arranged control groove (2052), and the control groove (2052) is connected to the rear end surface of the rotating drum 205. The top contact block (1026) can be inserted into the control groove (2052), so that the rotating drum (205) rotates around its own axis, thereby driving the front end of the needle (201) to rotate around its own axis.

2. The connector structure for a ring main unit according to claim 1, characterized in that: The outer peripheral surface of the front end of the rotating drum (205) is provided with a rotating drum annular groove (2051), the rear end of the contact section (202) has an extension portion (2022) extending in a radial direction, the outer edge of the rear end surface of the extension portion (2022) has a sliding flange (2021) extending backward, and the sliding flange (2021) is inclined radially inward along the direction from front to rear and can be inserted into the rotating drum annular groove (2051), so that the rotating drum (205) can rotate relative to the contact section (202) around the axis of the contact section (202).

3. The connector structure for a ring main unit according to claim 2, characterized in that: The contact pin (200) further comprises: The two ends of the flexible sleeve (204) are respectively fixed to the rear end surface of the extension portion (2022) and the front end surface of the rotating cylinder (205), and the flexible sleeve (204) is capable of twisting.

4. The connector structure for a ring main unit according to claim 1, characterized in that: The mounting platform (2024) has a plurality of mounting holes (203), and the mounting holes (203) are connected to the outer peripheral surface of the mounting platform (2024); The needle (201) further comprises: A rotating member (2012) is rotatably mounted in the mounting hole (203), and a portion of the outer peripheral surface of the rotating member (2012) is capable of protruding outward from the mounting hole (203) in a radial direction to contact the inner surface of the rotating drum (205).

5. The connector structure for a ring main unit according to claim 4, characterized in that: The rotating member (2012) is formed in a tapered shape, and the diameter of the front end thereof is larger than the diameter of the rear end thereof.

6. The connector structure for a ring main unit according to claim 1, characterized in that: The female end connector (102) comprises: The front end surface of the female end housing (1023) is provided with a plurality of top connection rings (1025) extending forward, and the outer peripheral surface of the top connection ring (1025) is provided with the top connection block (1026).

7. The connector structure for a ring main unit according to claim 6, characterized in that: The male end connector (101) comprises: Male end first housing (1011); A male end second housing (1015) fixed inside the male end first housing (1011); A fixing assembly (1013) which can be rotatably mounted on the rear end of the male end first housing (1011) and can be threadedly connected to the front end of the female end housing (1023).

8. The connector structure for a ring main unit according to claim 7, characterized in that: The rear end of the male end first housing (1011) is provided with a male end annular groove (1012), and the front end of the fixing assembly (1013) is provided with a rotating ring (1014), and the rotating ring (1014) is inserted into the male end annular groove (1012).

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