High-voltage cable connecting device without angular limitation

Abstract

The utility model belongs to the technical field of high-voltage electric connectors, and discloses a high-voltage cable connecting device without angular limitation. Comprising a socket and a plug, the end face of the socket is concavely arranged to form a circular-truncated-cone-shaped cavity, an opening is formed in the end face of the socket, a cylindrical pin and an annular pin are arranged on the bottom face of the cavity in the extending direction of the cavity, the annular pin and the cylindrical pin are coaxially arranged, the cylindrical pin is located in the center of the bottom face of the cavity, and the plug is matched with the cavity in shape. Along the extension direction of the plug, the central position of the front end face of the plug is concavely arranged to form a plug bush, the front end face of the plug is provided with an annular slot, the annular slot and the plug bush are coaxially arranged, the heads of the cylindrical pins and the heads of the annular pins are provided with chamfer structures, the cylindrical pins can be inserted into the plug bush, and the annular pins can be inserted into the annular slot. When the high-voltage cable connecting device without angular limitation is installed, the angle does not need to be accurately calibrated, the butt joint efficiency of the plug and the socket is improved, and the labor intensity is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to high -voltage connector technical field especially relates to a high -voltage cable connecting device without angular direction restriction. BACKGROUND

[0002] High -voltage cable socket is a kind of high -voltage cable, realize high voltage, high current transmission electrical element, high -voltage cable socket includes plug and socket, and traditional high -voltage cable socket usually has four pins in the interior of socket, and there are four pin corresponding insertion hole on the plug, in order to avoid high -voltage spark risk, socket insulating layer is made relatively deep, leading to the plug and socket plug-in time, need guarantee the plug and socket concentricity, and the insertion hole of plug and the pin spacing of socket, angular direction is consistent to be inserted, make the plug and socket plug-in efficiency lower.

[0003] The related art provides a kind of high-voltage electrical connector, by being arranged in the inner wall of socket shell along the axial direction direction positioning key, and being set in the outer wall of plug shell along the axial direction direction opening and positioning key groove matched with positioning piece, it is convenient to position the angular direction of plug and socket, but, since high-voltage cable is generally heavy, when high-voltage cable is connected using the mode of positioning key and positioning key groove, it is time-consuming to align, greatly increase the operation difficulty and labor intensity of construction personnel.

[0004] Therefore, a high-voltage cable connecting device without angular direction restriction is needed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of high -voltage cable connecting device without angular direction restriction. Angle alignment restriction of traditional cable connecting device can be broken, angle needs not to be accurately calibrated when installing, reduce the connection time of plug and socket, guarantee the accurate butt joint of pin and slot, improve the butt joint efficiency of plug and socket, reduce labor intensity.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] High -voltage cable connecting device without angular direction restriction, comprising:

[0008] Socket, the end surface of the socket is recessed to form a cavity in the shape of a circular truncated cone, and an opening is formed on the end surface of the socket, along the extension direction of the cavity, the bottom surface of the cavity is provided with a cylindrical pin and an annular pin, the annular pin is coaxially arranged with the cylindrical pin, and the cylindrical pin is located at the center position of the bottom surface of the cavity;

[0009] Plug, the plug is matched with the shape of the cavity, along the extension direction of the plug, the center position of the front end surface of the plug is recessed to form a sleeve, the front end surface of the plug is provided with an annular slot, and the annular slot is coaxially arranged with the sleeve;

[0010] The head of the cylindrical pin is provided with a first chamfer structure, the head of the ring pin is provided with a second chamfer structure, the cylindrical pin can be inserted into the insertion sleeve, and the ring pin can be inserted into the ring slot.

[0011] Preferably, a contact copper sheet is arranged in the ring slot, and the ring pin can abut against the contact copper sheet.

[0012] Preferably, the outer surface of the contact copper sheet is coated with conductive paste.

[0013] Preferably, the socket comprises a socket body and a first mating plate, the end face of the socket body is provided with the opening, the first mating plate is connected to the end face of the socket body provided with the opening, and a sealing groove is formed in the first mating plate. The plug comprises a plug body and a second mating plate, the second mating plate is connected to the rear end face of the plug body, and the high-voltage cable connection device without angle limitation further comprises:

[0014] A sealing element is arranged in the sealing groove, and the end face of the second mating plate abuts against the sealing element when the cylindrical pin is inserted into the insertion sleeve.

[0015] Preferably, the first mating plate is a first ring plate, the second mating plate is a second ring plate, and the sealing element is a planar sealing ring.

[0016] Preferably, one of the first mating plate and the second mating plate is provided with a clamping element, and the other is provided with a clamping groove, the clamping element is arranged in the clamping groove when the cylindrical pin is inserted into the insertion sleeve, and the clamping element is clamped in the clamping groove by rotating the first mating plate or the second mating plate.

[0017] Preferably, the clamping element comprises a first clamping column and a second clamping column connected to each other, the first clamping column is fixedly connected to the first mating plate, the diameter of the first clamping column is smaller than the diameter of the second clamping column, the clamping groove is arranged in the second mating plate, the clamping groove comprises a first arc-shaped groove and a second arc-shaped groove, the groove width of the first arc-shaped groove is the same as the diameter of the second clamping column, and the groove width of the second arc-shaped groove is the same as the diameter of the first clamping column.

[0018] The first clamping column and the second clamping column can pass through the first arc-shaped groove, the first clamping column can be limitingly connected to the second arc-shaped groove, and the second clamping column can abut against the end face of the second mating plate away from the first mating plate.

[0019] Preferably, a fillet is formed between the inner wall surface of the cavity and the end face of the socket provided with the opening.

[0020] As preferred, the high-voltage cable connection device without angular orientation limitation further comprises:

[0021] a first flange, which is sleeved on the outer wall surface of the plug;

[0022] a second flange, which is sleeved on the outer wall surface of the socket;

[0023] when the cylindrical pin is inserted into the socket and the annular pin is inserted into the annular slot, the first flange is connected with the second flange to compress the plug and the socket.

[0024] As preferred, the annular pin is provided in plurality, and the plurality of annular pins are coaxially arranged; the annular slot is provided in plurality, and the plurality of annular slots are coaxially arranged, and the annular pin can be inserted into the corresponding annular slot.

[0025] The utility model discloses beneficial effects:

[0026] The utility model provides a high -voltage cable connection device without angular orientation limitation, including socket and plug, the end surface concave of socket forms the cavity of circular truncated cone, and forms the opening at the end surface of socket, along the extension direction of cavity, the bottom surface of cavity is equipped with cylindrical pin and annular pin, and annular pin and cylindrical pin are coaxially arranged, and cylindrical pin is located the center position of the bottom surface of cavity, and the shape of plug and cavity is matched, along the extension direction of plug, the center position of plug front end surface concave forms the socket, and the annular slot is seted up to the plug front end surface, and annular slot and socket are coaxially arranged, and the head of cylindrical pin is equipped with first chamfer structure, and the head of annular pin is equipped with second chamfer structure, and cylindrical pin can insert the socket, and annular pin can insert the annular slot.

[0027] The combination of the cavity of circular truncated cone and the matching plug breaks the angle alignment limitation of the traditional cable connection device, and the angle does not need to be accurately calibrated during installation, the connection time of the plug and the socket is reduced, and the coaxial design of the cylindrical pin and the annular pin, the socket and the annular slot, and the setting of the first chamfer structure and the second chamfer structure ensure the accurate butt joint of the pin and the slot, improve the butt joint efficiency of the plug and the socket, and reduce the labor intensity. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is the schematic diagram of the high -voltage cable connection device without angular orientation limitation of the utility model embodiment;

[0029] Figure 2 It is Figure 1 the sectional view of A-A direction in;

[0030] Figure 3is a first schematic view of the socket of the high-voltage cable connecting device without angle direction restriction according to the embodiment of the utility model;

[0031] Figure 4 is a schematic view of the plug of the high-voltage cable connecting device without angle direction restriction according to the embodiment of the utility model;

[0032] Figure 5 is Figure 2 the partial close-up view at B in figure;

[0033] Figure 6 is a second schematic view of the socket of the high-voltage cable connecting device without angle direction restriction according to the embodiment of the utility model.

[0034] In the figure:

[0035] 1, socket; 11, socket body; 111, cavity; 112, opening; 12, first butt plate; 13, clamping piece; 131, first clamping column; 132, second clamping column;

[0036] 2, plug; 21, plug body; 22, second butt plate; 221, first arc-shaped slot; 222, second arc-shaped slot;

[0037] 3, cylindrical pin; 4, annular pin;

[0038] 5, plug sleeve; 6, annular insertion slot;

[0039] 7, contact copper sheet;

[0040] 8, first flange plate;

[0041] 9, second flange plate. DETAILED DESCRIPTION

[0042] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar parts or the parts with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as the limitation of the utility model.

[0043] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, can be fixedly connected, can be detachably connected, can be mechanically connected, can be electrically connected, can be directly connected, can be indirectly connected through intermediate medium, can be the communication inside two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0044] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0046] This embodiment provides a high-voltage cable connection device without angular restrictions, such as... Figures 1-4 As shown, the high-voltage cable connection device without angular restriction includes a socket 1 and a plug 2. The end face of the socket 1 is recessed to form a frustum-shaped cavity 111, and an opening 112 is formed on the end face of the socket 1. Along the extension direction of the cavity 111, the bottom surface of the cavity 111 is provided with a cylindrical pin 3 and an annular pin 4. The annular pin 4 is coaxially arranged with the cylindrical pin 3, and the cylindrical pin 3 is located at the center of the bottom surface of the cavity 111. The plug 2 matches the shape of the cavity 111. Along the extension direction of the plug 2, the center of the front end face of the plug 2 is recessed to form a sleeve 5. The front end face of the plug 2 is provided with an annular slot 6, which is coaxially arranged with the sleeve 5. The head of the cylindrical pin 3 is provided with a first chamfer structure, and the head of the annular pin 4 is provided with a second chamfer structure. The cylindrical pin 3 can be inserted into the sleeve 5, and the annular pin 4 can be inserted into the annular slot 6.

[0047] The combination of the frustum-shaped cavity 111 and the matching plug 2 breaks the angle alignment limitation of traditional cable connection devices. Precise angle calibration is not required during installation, reducing the connection time between plug 2 and socket 1. Furthermore, the coaxial design of cylindrical pin 3 and ring pin 4, and socket 5 and ring slot 6, along with the first and second chamfer structures, ensures precise docking between pins and slots, improving the docking efficiency of plug 2 and socket 1 and reducing labor intensity.

[0048] It is worth mentioning that the chamfer structure is equivalent to a guide slope, which can automatically correct the installation deviation through the guiding effect of the chamfer structure when the cylindrical pin 3 is inserted into the socket 5 and the annular pin 4 is inserted into the annular slot 6. Without accurate alignment, the cylindrical pin 3 can be smoothly inserted into the socket 5, and the annular pin 4 can be smoothly inserted into the annular slot 6, which helps to reduce the difficulty of plugging the plug 2 and the socket 1 and improves the assembly efficiency. At the same time, the head of the cylindrical pin 3 and the head of the annular pin 4 provided with the chamfer structure can avoid scratching the inner wall of the socket 5 or the inner wall of the annular slot 6 when they are inserted into the socket 5 and the annular slot 6, respectively.

[0049] Specifically, in the present embodiment, the socket 1 is made of alumina ceramic material. The alumina ceramic material has extremely low electrical conductivity, high dielectric strength, excellent electrical insulation performance, and can withstand extremely high voltage without breakdown. In other embodiments, the socket 1 is made of barium titanate-based ceramic material, spinel ceramic material or magnesium oxide-based ceramic material. This is not limited.

[0050] Specifically, in the present embodiment, the plug 2 is made of epoxy resin material. The epoxy resin material has excellent high-voltage resistance and can withstand high voltage of several thousand volts to several ten thousand volts. The epoxy resin has excellent high-temperature resistance and good mechanical strength. In other embodiments, the plug 2 is made of polytetrafluoroethylene material or alumina ceramic and the like. This is not limited.

[0051] Optionally, as shown in Figures 2-4 The annular pin 4 is provided with a plurality of annular pins 4 coaxially arranged; the annular slot 6 is provided with a plurality of annular slots 6 coaxially arranged, and the annular pin 4 can be inserted into the corresponding annular slot 6. The plurality of annular pins 4 and the plurality of annular slots 6 can improve the power supply reserve and can be shunted to reduce the pressure and improve the upper limit of the load.

[0052] Specifically, in the present embodiment, the annular pin 4 is provided with three annular pins 4, and correspondingly, the annular slot 6 is provided with three annular slots 6. In other embodiments, the annular pin 4 is provided with two annular pins 4, and correspondingly, the annular slot 6 is provided with two annular slots 6, or the annular pin 4 is provided with four annular pins 4, and correspondingly, the annular slot 6 is provided with four annular slots 6, and the like. This is not limited.

[0053] Optionally, as shown in Figures 1-4As shown, the socket 1 includes a socket body 11 and a first mating plate 12, an end surface of the socket body 11 is provided with an opening 112, the first mating plate 12 is connected to the end surface of the socket body 11 provided with the opening 112, and a sealing groove is formed in the first mating plate 12. The plug 2 includes a plug body 21 and a second mating plate 22, the second mating plate 22 is connected to the rear end surface of the plug body 21, the high-voltage cable connection device without angular restriction further includes a sealing element, the sealing element is accommodated in the sealing groove, and when the cylindrical pin 3 is inserted into the plug sleeve 5, the end surface of the second mating plate 22 abuts against the sealing element. When the cylindrical pin 3 is inserted into the plug sleeve 5, the electrical circuit between the plug 2 and the socket 1 is realized, at this time, the end surface of the second mating plate 22 of the plug 2 abuts against the sealing element in the sealing groove, a sealing effect is formed on the abutting surface of the first mating plate 12 and the second mating plate 22, external water vapor or dust is effectively prevented from entering the cavity 111 from the abutting surface of the first mating plate 12 and the second mating plate 22, thereby avoiding poor contact or short circuit between the plug 2 and the socket 1, and the safety and stability of the high-voltage cable connection device without angular restriction are ensured.

[0054] Specifically, in the present embodiment, the first mating plate 12 is a first annular plate, the second mating plate 22 is a second annular plate, and the sealing element is a planar sealing ring. The planar sealing ring is arranged to form a surface sealing between the second annular plate and the planar sealing ring, the surface sealing is achieved by full lamination of the contact surface, the area of the surface sealing is increased, and the sealing effect of the first mating plate 12 and the second mating plate 22 is further ensured. In other embodiments, the sealing element is an O-shaped sealing ring, etc. This is not limited herein.

[0055] Specifically, as shown, Figures 1-4 one of the first mating plate 12 and the second mating plate 22 is provided with a clamping element 13, and the other is provided with a clamping groove, when the cylindrical pin 3 is inserted into the plug sleeve 5, the clamping element 13 is accommodated in the clamping groove, and the first mating plate 12 or the second mating plate 22 is rotated, and the clamping element 13 is clamped in the clamping groove. After the cylindrical pin 3 is inserted into the plug sleeve 5, the abutting surface of the planar sealing ring and the second mating plate 22 is in lamination and sealing, at this time, the clamping element 13 passes through the clamping groove and is accommodated in the clamping groove, the first mating plate 12 or the second mating plate 22 is rotated, and in the rotation process, the clamping element 13 rotates with the first mating plate 12 or the second mating plate 22 and is clamped in the clamping groove, mechanical locking of the two mating plates is realized, displacement between the two mating plates in the axial direction of the cavity 111 is limited, compression deformation of the planar sealing ring is ensured, the sealing effect of the first mating plate 12 and the second mating plate 22 is ensured, and the stability of the connection between the plug 2 and the socket 1 is ensured.

[0056] Further specifically, the clamping piece 13 comprises a first clamping column 131 and a second clamping column 132 connected with each other, the first clamping column 131 is fixedly connected with the first connecting plate 12, and the diameter of the first clamping column 131 is smaller than that of the second clamping column 132, the clamping groove is arranged on the second connecting plate 22, the clamping groove comprises a first arc-shaped groove 221 and a second arc-shaped groove 222, the groove width of the first arc-shaped groove 221 is the same as the diameter of the second clamping column 132, the groove width of the second arc-shaped groove 222 is the same as the diameter of the first clamping column 131, the first clamping column 131 and the second clamping column 132 can pass through the first arc-shaped groove 221, the first clamping column 131 can be limitingly connected in the second arc-shaped groove 222, and the second clamping column 132 can abut against the end face of the second connecting plate 22 away from the first connecting plate 12.

[0057] When the clamping and locking plug 2 and the socket 1, the first clamping column 131 and the second clamping column 132 of the clamping piece 13 pass through the first arc-shaped groove 221 together, when the clamping piece 13 passes through the first arc-shaped groove 221, the second connecting plate 22 is rotated, so that the first clamping column 131 enters the second arc-shaped groove 222, the groove width of the second arc-shaped groove 222 is only matched with the first clamping column 131, and the second clamping column 132 cannot enter because the diameter is greater than the groove width of the second arc-shaped groove 222, axial limiting is formed, at the same time, the second clamping column 132 abuts against the end face of the second connecting plate 22 away from the first connecting plate 12, the displacement of the first connecting plate 12 and the second connecting plate 22 along the axial direction of the cavity 111 is limited, and then the clamping connection of the two connecting plates is realized.

[0058] Optionally, as shown in Figures 1-4 The inner wall surface of the cavity 111 and the end face of the socket 1 provided with the opening 112 form a round corner (not shown in the figure). The setting of the round corner makes the stress at the round corner gradually spread to the surrounding when subjected to external force, thereby reducing the peak value of local stress and reducing the risk of cracking of the socket body 11 due to stress concentration. At the same time, when the plug body 21 and the socket body 11 are assembled, the round corner serves as a guide to facilitate the plug-in cooperation of the plug body 21 and the socket body 11.

[0059] Optionally, the high-voltage cable connection device without angular limitation further comprises a first flange 8 and a second flange 9, the first flange 8 is sleeved on the outer wall surface of the plug 2, the second flange 9 is sleeved on the outer wall surface of the socket 1, when the cylindrical pin 3 is inserted into the socket 5 and the annular pin 4 is inserted into the annular slot 6, the first flange 8 is connected with the second flange 9 to compress the plug 2 and the socket 1. The setting of the two flanges can compress the plug 2 and the socket 1 when the cylindrical pin 3 is inserted into the socket 5 and the annular pin 4 is inserted into the annular slot 6, and the compression effect can eliminate the gap between the plug 2 and the socket 1, which not only improves the sealing performance between the plug 2 and the socket 1 in the high-voltage scene, but also enhances the mechanical stability of the connection between the plug 2 and the socket 1, avoids loosening caused by vibration and other working conditions, and ensures the safety of the high-voltage cable connection device without angular limitation.

[0060] Specifically, when the first flange 8 is connected with the second flange 9, the second flange 9 sleeved on the outer wall surface of the socket 1 abuts against one side of the first butt plate 12 away from the second butt plate 22, and the first flange 8 sleeved on the outer wall surface of the plug 2 abuts against one side of the second butt plate 22 away from the first butt plate 12, by abutting against the two butt plates, the first butt plate 12 and the second butt plate 22 can be moved towards each other, and then the plug 2 and the socket 1 are compressed.

[0061] Optionally, as shown in Figures 1-5 The annular pin 4 is annular, which is matched with the contact copper sheet 7 in the annular slot 6 to form a contact surface along the circumferential direction of the annular pin 4, which helps to increase the contact area of the annular pin 4 and the contact copper sheet 7, reduce the contact resistance, reduce the heating phenomenon in the current transmission process, and avoid connection failure caused by local overheating. When the annular pin 4 is inserted into the annular slot 6 and abuts against the contact copper sheet 7, the elastic deformation of the contact copper sheet 7 will generate a continuous contact pressure, which helps to avoid the shaking of the annular pin 4 in the annular slot 6, thereby avoiding the poor contact of the plug 2 and the socket 1, and maintaining the stable electrical connection of the plug 2 and the socket 1.

[0062] Specifically, the outer surface of the contact copper sheet 7 is coated with conductive paste. There are tiny impurities and uneven micro defects on the outer surface of the contact copper sheet 7, which cause the contact resistance between the ring-shaped pin 4 and the contact copper sheet 7 to increase, and the contact copper sheet 7 is easy to heat and consume electric energy when electrified. The conductive filler in the conductive paste can fill the gaps on the contact surface, form a stable conductive path, reduce resistance loss, and in the process of plugging the plug 2 and the socket 1, the contact part of the contact copper sheet 7 may be rubbed, causing poor contact. The lubricating component of the conductive paste can reduce the friction coefficient and reduce mechanical damage when the plug 2 and the socket 1 are plugged in and unplugged, and at the same time, the copper debris generated by wear can affect the electrical performance. It should be noted that in the present embodiment, the conductive paste is a silver-based conductive paste. In other embodiments, the conductive paste is a copper-based conductive paste, and the like. This is not limited. Specifically, the contact copper sheet 7 is arranged in the sleeve 5.

[0063] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or variations can be made. Here, all the embodiments need not and cannot be exhausted. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claims.

Claims

1. A high-voltage cable connection device without angular restriction, characterized in that, include: A socket (1) has a truncated cavity (111) formed on its end face, and an opening (112) is formed on the end face of the socket (1). Along the extension direction of the cavity (111), the bottom surface of the cavity (111) is provided with a cylindrical pin (3) and an annular pin (4). The annular pin (4) is coaxially arranged with the cylindrical pin (3), and the cylindrical pin (3) is located at the center of the bottom surface of the cavity (111). The plug (2) is matched with the shape of the cavity (111). Along the extension direction of the plug (2), a socket (5) is recessed at the center of the front end face of the plug (2). An annular slot (6) is opened on the front end face of the plug (2). The annular slot (6) and the socket (5) are coaxially arranged. The cylindrical pin (3) has a first chamfered structure at its head, and the annular pin (4) has a second chamfered structure at its head. The cylindrical pin (3) can be inserted into the sleeve (5), and the annular pin (4) can be inserted into the annular slot (6).

2. The high-voltage cable connection device without angular restriction according to claim 1, characterized in that, The annular slot (6) is provided with a contact copper sheet (7), and the annular pin (4) can abut against the contact copper sheet (7).

3. The high-voltage cable connection device without angular restriction according to claim 2, characterized in that, The outer surface of the contact copper sheet (7) is coated with conductive paste.

4. The high-voltage cable connection device without angular restriction according to claim 1, characterized in that, The socket (1) includes a socket body (11) and a first mating plate (12). The socket body (11) has an opening (112) on its end face. The first mating plate (12) is connected to the end face of the socket body (11) with the opening (112). The first mating plate (12) is recessed to form a sealing groove. The plug (2) includes a plug body (21) and a second mating plate (22). The second mating plate (22) is connected to the rear end face of the plug body (21). The high-voltage cable connection device without angular restriction further includes: A sealing element is housed within the sealing groove. When the cylindrical pin (3) is inserted into the sleeve (5), the end face of the second mating plate (22) abuts against the sealing element.

5. The high-voltage cable connection device without angular restriction according to claim 4, characterized in that, The first docking plate (12) is a first annular plate, the second docking plate (22) is a second annular plate, and the sealing element is a planar sealing ring.

6. The high-voltage cable connection device without angular restriction according to claim 4, characterized in that, One of the first docking plate (12) and the second docking plate (22) is provided with a snap-fit ​​member (13), and the other is provided with a snap-fit ​​groove. When the cylindrical pin (3) is inserted into the sleeve (5), the snap-fit ​​member (13) is accommodated in the snap-fit ​​groove. When the first docking plate (12) or the second docking plate (22) is rotated, the snap-fit ​​member (13) snaps into the snap-fit ​​groove.

7. The high-voltage cable connection device without angular restriction according to claim 6, characterized in that, The snap-fit ​​component (13) includes a first snap-fit ​​post (131) and a second snap-fit ​​post (132) connected to each other. The first snap-fit ​​post (131) is fixedly connected to the first mating plate (12), and the diameter of the first snap-fit ​​post (131) is smaller than the diameter of the second snap-fit ​​post (132). The snap-fit ​​groove is opened on the second mating plate (22). The snap-fit ​​groove includes a first arc groove (221) and a second arc groove (222). The width of the first arc groove (221) is the same as the diameter of the second snap-fit ​​post (132), and the width of the second arc groove (222) is the same as the diameter of the first snap-fit ​​post (131). The first snap-fit ​​post (131) and the second snap-fit ​​post (132) can pass through the first arc groove (221), the first snap-fit ​​post (131) can be limited and connected to the second arc groove (222), and the second snap-fit ​​post (132) can abut against the end face of the second mating plate (22) away from the first mating plate (12).

8. The high-voltage cable connection device without angular restriction according to any one of claims 1-7, characterized in that, The inner wall of the cavity (111) and the end face of the socket (1) with the opening (112) form a rounded corner.

9. The high-voltage cable connection device without angular restriction according to any one of claims 1-7, characterized in that, The high-voltage cable connection device without angular restriction also includes: The first flange (8) is fitted onto the outer wall of the plug (2); The second flange (9) is fitted onto the outer wall of the socket (1); When the cylindrical pin (3) is inserted into the socket (5) and the annular pin (4) is inserted into the annular slot (6), the first flange (8) is connected to the second flange (9) to press the plug (2) and the socket (1).

10. The high-voltage cable connection device without angular restriction according to any one of claims 1-7, characterized in that, Multiple ring pins (4) are provided, and multiple ring pins (4) are coaxially arranged; multiple ring slots (6) are provided, and multiple ring slots (6) are coaxially arranged, and the ring pins (4) can be inserted into the corresponding ring slots (6).

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