Plug, socket and high-voltage-resistant multi-core connector

Abstract

The utility model relates to a plug, a socket and a high-voltage-resistant multi-core connector. The high-voltage-resistant multi-core connector comprises the plug and the socket which are in plug-in fit. The plug comprises a fixing plate, at least two conductive insertion cores, a plug cylinder, a high-voltage cable and a wire positioning plate. The conductive insertion core is installed on the fixing plate, and the wire positioning plate is connected outside the high-voltage cable in a sleeving manner. The plug cylinder has a first end and a second end along the length direction, the fixing plate is mounted to the first end, and the wire positioning plate is located at the second end and hermetically connected to the plug cylinder; a sealed cavity is defined by the wire positioning plate, the plug cylinder and the fixing plate, the cavity is filled with an insulating material, and the high-voltage cable partially extends into the cavity and is electrically connected with the conductive insertion core. A positioning part is arranged on the outer surface, close to the second end, of the plug cylinder. According to the utility model, the plug ensures high voltage resistance through the plug cylinder and the insulating material in the cavity, realizes the function of preventing wrong insertion through the positioning part, improves the safety and prolongs the service life of the high-voltage-resistant multi-core connector.

Description

Technical Field

[0001] This utility model relates to the field of multi-core connector equipment technology, specifically a plug, socket, and high-voltage resistant multi-core connector. Background Technology

[0002] Electrical connectors consist of a fixed-end connector, the female contact (socket), and a free-end connector, the male contact (plug). The socket is fixed to the electrical component by its square (or round) disc (some are soldered), while the plug is typically used to connect a cable. The plug and socket are connected via a connecting nut. Electrical connectors consist of three basic units: the housing, the insulator, and the contacts. In multi-core connectors, each pin must be correctly connected to its corresponding socket. Currently, multi-core connectors frequently experience incorrect pin and socket connections, easily leading to connector damage. For high-voltage connectors with withstand voltages of tens or even hundreds of kilovolts, incorrect connection can damage the pins, affecting the safety of the high-voltage connector. Furthermore, high-voltage connectors have extremely high insulation requirements; currently, most high-voltage connectors on the market are non-standard, custom-made models, expensive, and the cost of replacing damaged connectors is extremely high.

[0003] Therefore, there is a need to provide a plug, socket, and high-voltage resistant multi-core connector to at least partially solve the above problems. Utility Model Content

[0004] The utility model description section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This utility model description section is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0005] To at least partially solve the problems mentioned in the background art, the first aspect of this utility model provides a plug for mating with a socket of a high-voltage multi-core connector, comprising a fixing plate, at least two conductive cores, a plug sleeve, a high-voltage cable and a wire positioning plate, wherein the conductive cores are mounted to the fixing plate and the wire positioning plate is sleeved and connected to the outside of the high-voltage cable;

[0006] The plug cylinder has a first end and a second end opposite to the first end along its length. The fixing plate is installed to the first end, and the wire positioning plate is sealed to the plug cylinder and located at the second end. A sealed cavity is formed between the wire positioning plate, the plug cylinder, and the fixing plate. The cavity is filled with insulating material, and the high-voltage cable partially extends into the cavity and is electrically connected to the conductive ferrule.

[0007] The plug sleeve has a positioning part on its outer surface near the second end, which is used to connect to the socket to limit the angle of insertion and mating of the plug and the socket.

[0008] Optionally, the positioning part is configured as a positioning protrusion or a positioning groove.

[0009] Optionally, the fixing plate is detachably and sealingly connected to the plug cylinder, the plug cylinder having a positioning notch at its first end to prevent the fixing plate from rotating relative to the plug cylinder; and / or

[0010] The conductive insert is detachably and sealed to the fixing plate.

[0011] Optionally, the insulating material is an insulating liquid, and the inner wall of the cavity is partially formed with an annular groove; and / or

[0012] The plug tube has a connection slot near the first end, the connection slot extends along the length direction, and the inner sidewall of the connection slot forms the cavity.

[0013] Optionally, the plug further includes a grounding sleeve and a locking cap. The grounding sleeve is fitted over the high-voltage cable and is electrically connected to the high-voltage cable. The locking cap is plugged into the second end of the plug cylinder and is fitted over the grounding sleeve to press the grounding sleeve between the locking cap and the end face of the plug cylinder.

[0014] A second aspect of this utility model also provides a socket for mating with the plug of a high-voltage multi-core connector, comprising a socket housing, at least two socket terminals, a conductive socket hole, and a mounting sleeve, wherein the socket terminals and the conductive socket hole are mounted to the mounting sleeve and are electrically connected, and the mounting sleeve is sleeved inside the socket housing;

[0015] The socket housing has a first connecting end and a second connecting end opposite to the first connecting end along its length direction. The mounting cylinder is installed on the first connecting end and forms a mounting cavity for connecting the plug.

[0016] The socket housing has a mating part near the second connection end for connecting to the plug, thereby defining the angle of insertion between the plug and the socket.

[0017] Optionally, the mating part is configured as a limiting groove provided on the inner surface of the socket housing; or

[0018] The mating part is constructed as a limiting notch provided at the second connecting end.

[0019] Optionally, the inner wall of the socket housing has a stepped portion that protrudes inward near the first connecting end. The mounting cylinder is inserted into the socket housing and abuts against the stepped portion. The mounting cylinder and the stepped portion are sealed together. A second connecting slot is formed between the outer surface of the mounting cylinder, the inner surface of the socket housing, and the stepped portion.

[0020] Optionally, the socket further includes a clamping nut located at the first connecting end, the clamping nut being threaded to the socket housing to cause the mounting sleeve to abut against the stepped portion; and / or

[0021] The stepped portion is provided with a snap-fit ​​groove, and the mounting cylinder is provided with a limiting key that matches the snap-fit ​​groove. When the mounting cylinder is installed into the socket housing, the limiting key engages with the snap-fit ​​groove to prevent the mounting cylinder from rotating relative to the socket housing.

[0022] The third aspect of this utility model provides a high-voltage resistant multi-core connector, the high-voltage resistant multi-core connector including the plug according to the first aspect of this utility model, wherein the outer surface of the plug tube of the plug is provided with a positioning part;

[0023] And the socket according to the second aspect of the present invention, wherein the socket housing is provided with a mating part;

[0024] When the plug is inserted into the socket housing, the positioning part and the mating part engage to limit the angle of insertion between the plug and the socket housing.

[0025] Compared with the prior art, the beneficial effects of this utility model are:

[0026] This utility model discloses a high-voltage resistant multi-core connector, comprising a plug and a socket. The plug ensures high voltage resistance through its insert and insulating material within the cavity. The plug has a positioning part, and the socket has a mating part. When the plug and socket are connected, the engaging connection of the positioning part and the mating part limits the plug and socket to a specific angle, preventing incorrect insertion. This ensures that each core accurately engages with its corresponding conductive hole, improving the safety and service life of the high-voltage resistant multi-core connector. Attached Figure Description

[0027] Figure 1 This is a cross-sectional structural schematic diagram of a plug according to a preferred embodiment of the present invention;

[0028] Figure 2 This is a cross-sectional view of a socket according to a preferred embodiment of the present invention;

[0029] Figure 3This is a perspective sectional view of a high-voltage resistant multi-core connector according to a preferred embodiment of the present invention, showing the plug and socket of the present invention; and

[0030] Figure 4 for Figure 3 A cross-sectional view of a medium-voltage multi-core connector.

[0031] In the picture:

[0032] 10. High-voltage multi-core connector; 100. Plug; 101. First end; 102. Second end; 110. Fixing plate; 120. Conductive ferrule; 130. Plug sleeve; 131. Cavity; 132. Positioning protrusion; 133. Positioning notch; 134. Annular groove; 135. First connecting slot; 135a. Inner side wall; 135b. Outer side wall; 140. High-voltage cable; 150. Wire positioning plate; 160. First locking cap; 171. Grounding sleeve; 172. Compression sleeve; 173. Second locking cap; 200. Socket; 2 01. First connecting end; 202. Second connecting end; 210. Socket housing; 211. First stepped portion; 211a. Snap-fit ​​groove; 212. Limiting groove; 213. Second connecting slot; 214. Annular protrusion; 220. Mounting cylinder; 221. Mounting cavity; 222. Second stepped portion; 223. Limiting key; 224. Sealing groove; 231. Socket terminal; 232. Conductive socket hole; 240. Compression nut; 310. Socket flange; 320. First compression flange; 330. Second compression flange; 340. Locking element. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figures 1 to 4 This is a specific embodiment of a high-voltage resistant multi-core connector 10 according to the present invention. The high-voltage resistant multi-core connector 10 includes a plug 100 and a socket 200 of the present invention. The plug 100 and the socket 200 are inserted and mated together. (Reference) Figure 1 , Figure 3 and Figure 4 Along its length, the two ends of the plug 100 are connected to the high-voltage cable 140 and the socket 200, respectively; (Reference) Figures 2 to 4Along its length, one end of the socket 200 is connected to the plug 100, and the other end of the socket 200 is a socket terminal 231 for connecting to the electrical equipment to be installed.

[0035] To facilitate understanding of the technical solution of this utility model, firstly, in conjunction with... Figure 1 and Figure 2 The structures of the plug 100 and socket 200 in this embodiment will be described separately.

[0036] See Figure 1 The plug 100 includes a fixing plate 110, at least two conductive plugs 120, a plug sleeve 130, a high-voltage cable 140, and a wire positioning plate 150. The conductive plugs 120 are installed on the fixing plate 110, and the wire positioning plate 150 is sleeved and connected to the outside of the high-voltage cable 140.

[0037] Specifically, the plug sleeve 130 has a first end 101 and a second end 102 opposite to the first end 101 along its own length. A fixing plate 110 is mounted to the first end 101, and a wire positioning plate 150 is sealed to the plug sleeve 130 and located at the second end 102. A sealed cavity 131 is formed between the wire positioning plate 150, the plug sleeve 130, and the fixing plate 110. A portion of the high-voltage cable 140 extends from the second end 102 into the cavity 131 and is electrically connected to the conductive ferrule 120. It is understood that the plug sleeve 130 is made of insulating material, and the cavity 131 is filled with insulating material to improve the voltage resistance of the plug 100.

[0038] In this embodiment, the plug sleeve 130 is provided with a positioning part on the outer surface near the second end 102. When the plug 100 is connected to the socket 200, the positioning part is connected to the socket 200 and limits the angle of the plug 100 and the socket 200 to be inserted and mated. As a result, the conductive core 120 of the plug 100 and the conductive socket 232 of the socket 200 (see the following description) can be prevented from being inserted incorrectly.

[0039] It is understandable that a structure matching the positioning part can be provided on the socket 200 accordingly.

[0040] refer to Figure 2 In this embodiment, the socket 200 includes a socket housing 210, at least two socket terminals 231, conductive socket holes 232, and a mounting sleeve 220. The socket terminals 231 and conductive socket holes 232 are mounted to the mounting sleeve 220 and are electrically connected. The mounting sleeve 220 is fitted inside the socket housing 210.

[0041] Specifically, the socket housing 210 has a first connecting end 201 and a second connecting end 202 that is opposite to the first connecting end 201 along its length. A mounting sleeve 220 is mounted on the first connecting end 201, and the mounting sleeve 220 forms a mounting cavity 221. When the plug 100 and the socket 200 are plugged in, the first end 101 of the plug 100 extends from the second connecting end 202 of the socket 200 into the socket housing 210 and connects with the mounting sleeve 220. The mounting cavity 221 of the conductive core 120 of the plug 100 is used to accommodate a portion of the plug 100, and the conductive core 120 is plugged in with the conductive socket 232 within the mounting cavity 221.

[0042] like Figure 2 As shown, the socket housing 210 has a mating part near the second connection end 202, which matches the positioning part provided on the outer surface of the plug 100.

[0043] In this embodiment, both the plug 100 and the socket 200 are generally cylindrical in shape. For example, the positioning portion can be configured as a positioning protrusion 132 or a positioning groove. See [link to documentation]. Figure 1 In this embodiment, the positioning part is constructed as a positioning protrusion 132 provided on the outer surface of the plug sleeve 130. Correspondingly, the mating part is constructed as a limiting groove 212 provided on the inner surface of the socket housing 210, and the mating part is constructed at the second connecting end 202 so that the mating part and the positioning part can be observed during user operation. See also Figure 2 The limiting groove 212 is located on the end face near the second connecting end 202. When the plug tube 130 is inserted into the socket housing 210 from the second connecting end 202, the limiting groove 212 is aligned with the positioning protrusion 132. When the positioning protrusion 132 is inserted into the limiting groove 212, the plug tube 130 and the socket housing 210 are engaged and cannot rotate relative to each other.

[0044] In this embodiment, the mating part is concealed within the socket housing 210. The mating part can also be configured as a limiting notch located at the second connection end 202, matching the positioning protrusion 132. Alternatively, the positioning part can be a positioning groove, with a corresponding mating part provided on the inner surface of the socket housing 210.

[0045] In this embodiment, the fixing plate 110 is sealed to the first end 101 of the plug cylinder 130, and the fixing plate 110 and the plug cylinder 130 are detachable. When the plug 100 is partially damaged, it can be repaired and replaced locally instead of replacing the entire plug. In this embodiment, the plug cylinder 130 is generally cylindrical. To prevent the fixing plate 110 from rotating relative to the plug cylinder 130, a positioning notch 133 is provided at the first end 101 of the plug cylinder 130.

[0046] refer to Figure 1The fixing plate 110 is engaged with the positioning notch 133 of the plug sleeve 130. The plug 100 also includes a first locking cap 160, which is fitted over the fixing plate 110. The conductive insert 120 extends outward through a through hole in the first locking cap 160. The first locking cap 160 is threadedly connected to the first end 101 of the plug sleeve 130, thereby locking the fixing plate 110 and the plug sleeve 130 at the positioning notch 133, ensuring that the relative positions of the conductive insert 120 and the positioning protrusion 132 are determined.

[0047] In this embodiment, the insulating material filling the cavity 131 is insulating adhesive, which ensures insulation performance and facilitates maintenance. An annular groove 134 is formed on the inner wall of the plug sleeve 130, which improves the insulation performance of the plug 100. Figure 1 In the plug cylinder 130, multiple annular grooves 134 are spaced apart along the axial direction on the inner wall, which can effectively increase the creepage distance and increase the stress of the insulating glue inside the sealed cavity 131, thereby improving the insulation performance of the high voltage multi-core connector 10.

[0048] Preferably, the conductive ferrule 120 is detachably and sealed to the fixing plate 110. For example, a mounting hole can be provided on the fixing plate 110, the conductive ferrule 120 is inserted into the mounting hole, and a sealant is applied between the conductive ferrule 120 and the mounting hole to achieve a sealing effect. The detachable design facilitates the replacement of the conductive ferrule 120.

[0049] Figure 1 In the illustrated embodiment, the plug 100 further includes a grounding sleeve 171 and a second locking cap 173. The grounding sleeve 171 is fitted over the high-voltage cable 140 and is electrically connected to the high-voltage cable 140. The second locking cap 173 is plugged into the second end 102 of the plug sleeve 130, and is fitted over the grounding sleeve 171 to press the grounding sleeve 171 between the locking cap and the end face of the plug sleeve 130. A clamping sleeve 172 is also provided between the grounding sleeve 171 and the second locking cap 173 to ensure a reliable electrical connection between the grounding sleeve 171 and the high-voltage cable 140.

[0050] See Figure 2 The inner wall of the socket housing 210 protrudes inward near the first connecting end 201 to form a first stepped portion 211. The mounting sleeve 220 is inserted into the socket housing 210. See also Figure 1 , Figure 2 and Figure 3 The outer surface of the mounting cylinder 220 is provided with a second step 222. The mounting cylinder 220 is inserted into the socket housing 210 from the first connecting end 201, and the second step 222 abuts against the first step 211.

[0051] The mounting cylinder 220 and the socket housing 210 are sealed together. Specifically, a sealing groove 224 is provided on the outer surface of the mounting cylinder 220, and a sealing ring is provided between the sealing groove 224 and the inner wall of the socket housing 210. Figure 2 Along the length of the socket housing 210, the outer surface of the mounting cylinder 220 is provided with multiple annular sealing grooves 224.

[0052] See Figure 1 The plug sleeve 130 also has a first connecting slot 135 near the first end 101. The first connecting slot 135 extends along its length. The first connecting slot 135 is not in communication with the cavity 131. The inner wall 135a of the first connecting slot 135 forms a part of the cavity 131, and the outer wall 135b of the first connecting slot 135 is flush with the outer surface of the plug sleeve 130. See also Figure 2 A second connecting slot 213 is formed between the outer surface of the mounting cylinder 220, the inner surface of the socket housing 210, and the stepped portion. The second connecting slot 213 is located inside the socket housing 210 and extends along the length direction.

[0053] See Figure 3 and Figure 4 When the plug 100 and the socket 200 are plugged in, the wall of the mounting cylinder 220 is inserted into the first connecting slot 135, and the outer wall 135b of the first connecting slot 135 is inserted into the second connecting slot 213, so as to achieve a reliable connection between the plug 100 and the socket 200, and at the same time effectively increase the creepage distance.

[0054] See Figure 2 In this embodiment, the socket 200 also includes a clamping nut 240. The clamping nut 240 is located at the first connecting end 201 and is threaded to the socket housing 210, so that the mounting sleeve 220 can abut against the first stepped portion 211.

[0055] Furthermore, to prevent the mounting sleeve 220 from rotating relative to the socket housing 210, such as Figures 2 to 4 As shown, a snap-fit ​​groove 211a is provided in the first step portion 211, such as Figure 1 , Figure 3 and Figure 4 As shown, a limiting key 223 matching the snap-fit ​​groove 211a is provided on the outer surface of the mounting cylinder 220. When the mounting cylinder 220 is installed into the socket housing 210, the limiting key 223 engages with the snap-fit ​​groove 211a to prevent the mounting cylinder 220 from rotating relative to the socket housing 210, ensuring that the relative position of the socket terminal 231 and the limiting groove 212 is determined.

[0056] See Figure 3 and Figure 4In one embodiment of the high-voltage resistant multi-core connector 10 of this utility model, after the plug tube 130 and the socket housing 210 are plugged in and fitted, the two are connected together through the socket flange 310, the first clamping flange 320, the second clamping flange 330 and the locking member 340.

[0057] See Figure 2 The outer surface of the socket housing 210 has an annular protrusion 214, the size of which is larger than the size of the socket flange 310. The socket flange 310 is fitted over the socket housing 210 and is used to seal and fix it to the electrical equipment to be installed. The electrical equipment to be installed may be, for example, the tank housing of a radiation source, the enclosure of a high-voltage power supply box, etc.

[0058] In other embodiments of this utility model not shown, corresponding matching markings can be affixed or engraved on the outer surfaces of the plug tube 130 and the socket housing 210 respectively. That is, the positioning part and the mating part can also be constructed as matching markings. For example, when the plug tube 130 and the socket housing 210 are plugged in, the markings provided on their respective surfaces are aligned.

[0059] The first clamping flange 320 and the locking member 340 can clamp the socket housing 210 and the socket flange 310. Specifically, the first clamping flange 320 is sleeved on the outside of the socket housing 210, and the first clamping flange 320 forms a groove that matches the annular protrusion 214. The first clamping flange 320 and the socket flange 310 are located on both sides of the annular protrusion 214, respectively, and are connected and locked by the locking member 340. The annular protrusion 214 is received in the groove and abuts against the inner wall of the groove. In this embodiment, the locking member 340 is a bolt.

[0060] The second clamping flange 330 is sleeved on the outside of the connection position between the socket housing 210 and the plug sleeve 130. One end of the second clamping flange 330 is locked to the first clamping flange 320 by a locking member 340. In addition, the other end of the second clamping flange 330 is provided with an internal thread for threaded connection with the second locking cap 173. The outer wall of the second locking cap 173 is correspondingly designed with an external thread.

[0061] After the plug sleeve 130 and the socket housing 210 are plugged in and engaged, they are installed and fixed to the electrical equipment to be installed through the socket flange 310, the first clamping flange 320, the second clamping flange 330 and the locking member 340.

[0062] It is understood that in other embodiments of this utility model, the socket flange 310 may also be formed as an integral component with the socket housing 210.

[0063] Preferably, sealant can be applied to the gaps where the high-voltage multi-core connector 10 is connected and to the gaps where the high-voltage multi-core connector 10 is connected to the electrical equipment to be installed, so that the high-voltage multi-core connector 10 can be used in applications with high sealing requirements, such as preventing leakage of insulating oil inside the tank when used on an oil tank housing.

[0064] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plug for mating with a receptacle of a high pressure resistant multi- core connector, characterized in that The plug comprises a fixed plate, at least two conductive pins, a plug barrel, a high-voltage cable and a wire positioning plate, the conductive pins are mounted to the fixed plate, and the wire positioning plate is sleeved and connected outside the high-voltage cable; The plug barrel has a first end and a second end opposite to the first end in the length direction, the fixed plate is mounted to the first end, and the wire positioning plate is sealingly connected to the plug barrel and located at the second end; a sealed cavity is formed between the wire positioning plate, the plug barrel and the fixed plate, the cavity is filled with an insulating material, and the high-voltage cable partially extends into the cavity and is electrically connected with the conductive pins; The plug barrel is provided with a positioning portion on the outer surface close to the second end, which is used for being connected to the socket to define the angle of the plug-in cooperation of the plug and the socket.

2. The plug of claim 1, wherein: The positioning portion is configured as a positioning protrusion or a positioning groove.

3. A plug according to claim 1, wherein: The fixed plate is sealingly and detachably connected to the plug barrel, the plug barrel is provided with a positioning notch at the first end for preventing the fixed plate from rotating relative to the plug barrel; and / or The conductive pins are sealingly and detachably connected to the fixed plate.

4. The plug of claim 1, wherein: The insulating material is an insulating liquid, and the inner wall of the cavity is partially formed with an annular groove; and / or The plug barrel is provided with a connecting slot at a position close to the first end, the connecting slot extends in the length direction, and the inner side wall of the connecting slot forms the cavity.

5. The plug of claim 1, wherein: The plug further comprises a grounding sleeve and a locking cap, the grounding sleeve is sleeved outside the high-voltage cable and is electrically connected with the high-voltage cable; The locking cap is plug-in connected to the second end of the plug barrel, and the locking cap is sleeved outside the grounding sleeve to press the grounding sleeve between the locking cap and the end face of the plug barrel.

6. A socket for mating with a plug of a high pressure resistant multi- core connector, characterized in that: The socket comprises a socket shell, at least two socket terminals, a conductive socket and a mounting barrel, the socket terminals and the conductive socket are mounted to the mounting barrel, and the socket terminals and the conductive socket are electrically connected, and the mounting barrel is sleeved in the socket shell; The socket shell has a first connecting end and a second connecting end opposite to the first connecting end in the length direction, the mounting barrel is mounted at the first connecting end, and the mounting barrel is formed with a mounting cavity for connecting the plug; The socket shell is provided with a matching portion at a position close to the second connecting end, which is used for being connected to the plug to define the angle of the plug-in cooperation of the plug and the socket.

7. The socket of claim 6, wherein: The matching portion is configured as a limiting groove provided on the inner surface of the socket shell; or The matching portion is configured as a limiting notch provided at the second connecting end.

8. The socket of claim 6, wherein: The inner wall of the socket shell is inwardly protruded to form a step portion at a position close to the first connecting end, the mounting barrel is plug-in connected to the socket shell and abuts against the step portion, the mounting barrel and the step portion are sealingly matched, and a second connecting slot is formed between the outer surface of the mounting barrel, the inner surface of the socket shell and the step portion.

9. The socket of claim 8, wherein: The socket further comprises a compression nut located at the first connecting end, the compression nut being threadedly connected to the socket housing to make the mounting cylinder abut against the step portion; and / or The step portion is provided with a clamping groove, and the mounting cylinder is provided with a limiting key matched with the clamping groove, the limiting key being clamped with the clamping groove to prevent the mounting cylinder from rotating relative to the socket housing when the mounting cylinder is mounted to the socket housing.

10. A high pressure resistant multi-core connector characterized by comprising: The high-pressure-resistant multi-core connector comprises: the plug according to any one of claims 1 to 5, an outer surface of a plug cylinder of the plug being provided with a positioning portion; and the socket according to any one of claims 6 to 9, a socket housing of the socket being provided with a matching portion; When the plug cylinder is connected to the socket housing in a plug-in manner, the positioning portion and the matching portion are clamped and connected to limit an angle of plug-in matching of the plug cylinder and the socket housing.

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