Pressure-resistant plugging device

Abstract

The utility model provides a pressure-resistant plugging device, and relates to the technical field of integrated circuit equipment manufacturing. The utility model relates to a pressure-resistant plugging device. The pressure-resistant plugging device comprises a first plugging structure and a second plugging structure matched with the first plugging structure, the first plugging structure comprises a first shell and a first connector arranged in the first shell, the first connector is provided with an insertion part extending in the preset direction, and a gap is formed between the first connector and the first shell in the radial direction of the preset direction; the first connector is limited in the first shell in the preset direction; the second plugging structure comprises a second shell and a second connector arranged in the second shell, the second connector is provided with an accommodating part used for accommodating the insertion part, and a gap is formed between the second connector and the second shell in the radial direction of the preset direction; and the second connector is limited in the second shell in the preset direction.

Description

Technical Field

[0001] This specification relates to the technical field of integrated circuit equipment manufacturing, specifically to a voltage-resistant connector. Background Technology

[0002] Connectors are used to connect two active devices to transmit current or signals. They offer advantages such as pluggability, modular design, and diverse options, making them widely applicable in electronic equipment and circuits, facilitating equipment maintenance, replacement, upgrades, and expansion. The electrical performance of connectors includes contact resistance, insulation resistance, and withstand voltage. Selecting a connector with appropriate performance based on environmental requirements ensures the stability and safety of the electrical connection. In some scenarios, connectors may be required to have a withstand voltage in the kV range. Utility Model Content

[0003] This specification provides one or more embodiments of a pressure-resistant connector device, comprising: a first connector structure and a second connector structure matching the first connector structure; the first connector structure includes a first housing and a first connector disposed inside the first housing, the first connector having an insertion portion extending in a predetermined direction, the first connector and the first housing having a gap in the radial direction of the predetermined direction, and the upper limit of the first connector in the predetermined direction being located within the first housing; the second connector structure includes a second housing and a second connector disposed inside the second housing, the second connector having a receiving portion for accommodating the insertion portion, the second connector and the second housing having a gap in the radial direction of the predetermined direction, and the upper limit of the second connector in the predetermined direction being located within the second housing.

[0004] In some embodiments, the first housing includes a first fastener and a first cover detachably connected to the first fastener, the first connector being axially limited between the first fastener and the first cover; the second housing includes a second fastener and a second cover detachably connected to the second fastener, the second connector being axially limited between the second fastener and the second cover.

[0005] In some embodiments, the first fastener includes a first region and a second region surrounding the first region, the first region being fixedly connected to the first cover; the second fastener includes a third region and a fourth region surrounding the third region, the third region being fixedly connected to the second cover; the second region is fixedly connected to the fourth region.

[0006] In some embodiments, a first radial limiting structure is provided between the first connector and the first housing, the first radial limiting structure creating a gap between the outer periphery of the first connector and the inner wall of the first housing; the first radial limiting structure includes a first groove and a first boss that match each other, one of the first connector and the first housing having the first groove that is formed in its axial direction, and the other of the first connector and the first housing having the first boss that extends in its axial direction; a second radial limiting structure is provided between the second connector and the second housing, the second radial limiting structure creating a gap between the outer periphery of the second connector and the inner wall of the second housing; the second radial limiting structure includes a second groove and a second boss that match each other, one of the second connector and the second housing having the second groove that is formed in its axial direction, and the other of the second connector and the second housing having the second boss that extends in its axial direction.

[0007] In some embodiments, the insertion portion of the first connector is interference-fitted with the receiving portion of the second connector, and the receiving portion is provided with one or more mating grooves along its axial direction.

[0008] In some embodiments, the receiving portion includes an outer annular structure and an inner annular structure located inside the outer annular structure; the outer annular structure has a gap with the second housing; the inner annular structure is used to receive the insertion portion and to have an interference fit with the insertion portion, and the inner annular structure has one or more of the mating grooves along its axial direction.

[0009] In some embodiments, the receiving portion of the second connector is provided with an elastic element and a slider that can move along the axial direction of the receiving portion, the two ends of the elastic element abutting against the inner wall of the receiving portion and the slider, respectively; the insertion portion of the first connector abuts against the slider.

[0010] In some embodiments, the first connector and / or the second connector have a wire receiving space for accommodating wires; the first connector and / or the second connector have a wire fixing member that penetrates the first connector and / or the second connector in a radial direction and extends into the interior of the wire receiving space; the inner wall of the wire receiving space also has a clearance area facing the wire fixing member.

[0011] In some embodiments, the first connector and / or the second connector have a wire receiving structure that provides a wire receiving space for accommodating wires; the wire receiving structure also has a soldering area.

[0012] In some embodiments, the first housing and / or the second housing have one or more annular pressure-resistant cavities along their outer edges.

[0013] The beneficial effects that the embodiments of this specification may bring include, but are not limited to: (1) reducing the contact surface and increasing the creepage distance by the gap between the first connector and the first housing, and the gap between the second connector and the second housing, making it less prone to electrical breakdown and achieving a kV-level withstand voltage strength; (2) fixing the connector and the housing by axial limiting; (3) preventing the connector and the housing from shifting by radial limiting structure, thereby ensuring the existence of the gap between the connector and the housing; (4) fixing the first connector and the second connector and high voltage conduction by interference fit; (5) limiting the deformation of the inner ring structure by the outer ring structure of the second connector, thereby ensuring that a gap is still maintained between the second connector and the second housing after interference fit; (6) making the axial distance between the first connector and the second connector adjustable by setting elastic elements and sliders; (7) providing two fixing methods for wires and connectors: static friction fixing and welding fixing; (8) further improving the withstand voltage effect of the entire withstand voltage plug-in device by arranging the withstand voltage cavity. It should be noted that different embodiments may produce different beneficial effects. In different embodiments, the beneficial effects may be any one or a combination of the above, or any other possible beneficial effects. Attached Figure Description

[0014] This specification will be further described by way of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. The same numbers in the drawings denote the same structures or steps.

[0015] Figure 1 This is a schematic diagram of the engagement of a pressure-resistant connector according to some embodiments of this specification.

[0016] Figure 2 This is a schematic diagram of the second connector of a pressure-resistant connector device according to some embodiments of this specification.

[0017] Figure 3 This is a schematic diagram of the first connector of a pressure-resistant connector device according to some embodiments of this specification.

[0018] Figure 4 This is a schematic diagram of the second housing of a pressure-resistant connector according to some embodiments of this specification.

[0019] Figure 5 This is a schematic diagram of the first housing of a pressure-resistant connector according to some embodiments of this specification.

[0020] Figure 6This is a schematic diagram of the second connector structure of the pressure-resistant connector device according to some embodiments of this specification.

[0021] Figure 7 This is a schematic diagram of the first connector structure of the pressure-resistant connector device according to some embodiments of this specification.

[0022] Figure 8 This is a schematic diagram of the second connector structure of the pressure-resistant connector device according to other embodiments of this specification.

[0023] Figure 9 This is a schematic diagram of the first connector structure of the pressure-resistant connector device according to other embodiments of this specification.

[0024] Figure 10 This is a schematic diagram of the elastic element and slider of the pressure-resistant connector according to some embodiments of this specification.

[0025] Figure 11 This is a schematic diagram of the welding area of ​​the second connector of the pressure-resistant connector device according to some embodiments of this specification.

[0026] Figure 12 This is a schematic diagram of the soldering area of ​​the first connector of the pressure-resistant connector device shown in some embodiments of this specification.

[0027] Figure 13 This is a schematic diagram of the pressure-resistant cavity of the second fixing member of the pressure-resistant connector according to some embodiments of this specification.

[0028] Figure 14 This is a schematic diagram of the pressure-resistant cavity of the first fixing member of the pressure-resistant connector according to some embodiments of this specification.

[0029] The diagram shows the following markings: 1 First connector structure; 11 First housing; 12 First connector; 121 First cylindrical structure; 13 Insertion part; 14 First fixing member; 15 First cover; 2 Second connector structure; 21 Second housing; 22 Second connector; 221 Second cylindrical structure; 23 Receiving part; 231 Mating groove; 24 Second fixing member; 25 Second cover; 31 First area; 32 Second area; 33 Third area; 34 Fourth area; 41 Elastic member; 42 Slider; 43 Slider limiting structure; 5 Wire fixing member; 61 Wire receiving structure; 62 Welding area; 7 Pressure-resistant cavity; 81 First radial limiting structure; 82 Second radial limiting structure; 9 Clearance area. Detailed Implementation

[0030] To more clearly illustrate the technical solutions of the embodiments in this specification, the embodiments will be described in detail below with reference to the accompanying drawings. Obviously, the content described below are some examples or embodiments of this specification. For those skilled in the art, without creative effort, the technical solutions or means disclosed in this specification can be applied to other scenarios based on this technical content.

[0031] It should be understood that the terms "system," "device," "equipment," "part" and / or "component," "unit" and / or "module" used in this specification are a method of distinguishing different components, elements, parts, sections, or assemblies at different levels. However, if other words can achieve the same purpose, they may be replaced by other expressions.

[0032] Unless otherwise specified, the technical terms used to describe components, elements, etc. in this specification are not singular but may include plural. Generally speaking, terms such as "comprising" or "including" only indicate that explicitly identified steps, elements, or components are included, and these steps, elements, and components do not constitute an exclusive list, as the described method or apparatus may also include other steps or components.

[0033] In the description of this specification, it should be understood that the directional descriptions, such as up, down, front, back, left, and right, indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. These descriptions are for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In the description of this specification, unless otherwise expressly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of the above terms in this specification in conjunction with the specific content of the technical solution.

[0034] Connectors are used to connect two active devices to transmit current or signals. In some embodiments, a connector may include a first connector and a second connector (e.g., a plug and a socket, or male and female terminals, male and female plugs). In some embodiments, the first connector may connect to one end of a circuit or device, and the second connector may accept the first connector, thus establishing an electrical connection between the two. Connectors offer advantages such as pluggability, modular design, and diverse options, enabling their widespread application in electronic devices and circuits, facilitating device maintenance, replacement, upgrades, and expansion.

[0035] In some embodiments, the electrical performance of the connector includes contact resistance, insulation resistance, and withstand voltage. Selecting a connector with appropriate performance based on environmental requirements can ensure the stability and safety of the electrical connection. In some scenarios, the connector may be required to have a withstand voltage in the kV range. For example, in electron beam detection equipment, a high voltage is required to stabilize the relative electric field of the electron beam, resulting in more accurate detection results. Therefore, it is necessary to design a withstand voltage connector to ensure that the high voltage is connected to the vacuum chamber of the electron beam detection equipment to prevent partial discharge and high voltage breakdown in a vacuum environment.

[0036] Based on this, one or more embodiments of this specification provide a pressure-resistant connector device, wherein gaps are formed between the first connector and the first housing, and between the second connector and the second housing, and the device has a pressure resistance of kV level.

[0037] Figure 1 This is a schematic diagram illustrating the engagement of a pressure-resistant connector according to some embodiments of this specification. See also... Figure 1 As shown, in some embodiments, the pressure-resistant connector may include: a first connector structure 1 and a second connector structure 2 that matches the first connector structure 1, thereby achieving high voltage conduction through the cooperation of the first connector structure 1 and the second connector structure 2.

[0038] In one or more embodiments of this specification, see Figure 3 , Figure 5 , Figure 7 As shown, the first connector structure 1 includes a first housing 11 and a first connector 12 disposed inside the first housing 11. The first connector 12 is used to connect one end of a circuit or device. In some embodiments, the first connector 12 includes an insertion portion 13 extending along a preset direction. In some embodiments, the first connector 12 may include a first cylindrical structure 121 and a rod-shaped insertion portion 13 connected to the first cylindrical structure 121. In some embodiments, one end of the first cylindrical structure 121 is open to accommodate the wiring harness of the circuit or device, and the other end of the first cylindrical structure 121 is closed and connected to the rod-shaped insertion portion 13. In some embodiments, the axis of the first cylindrical structure 121 and the axis of the rod-shaped insertion portion 13 may be located on the same first axis. In some embodiments, the preset direction is also located on the first axis.

[0039] In some embodiments, the first connector 12 may be made of beryllium copper or Kovar alloy. In some embodiments, both beryllium copper and Kovar alloy are low-magnetic materials, which can avoid the influence of the material's own residual magnetism on the electron beam. In some embodiments, the outer surface of the first connector 12 is rounded to avoid sharp parts, thus preventing tip discharge when high voltage is applied externally. In some embodiments, the first housing 11 may be made of a material with a dielectric constant ≥2, such as plastic, ceramic, glass, rubber, or a composite thereof. In some embodiments, the outer corners of the first housing 11 are rounded to prevent the high voltage inside the first connector 12 from breaking down other surrounding metal parts and causing high-voltage discharge.

[0040] In some embodiments, the first connector 12 and the first housing 11 are in a preset direction (e.g., Figure 7 The radial direction (e.g., the left and right directions in the middle) Figure 7 In some embodiments, the outer peripheral surface (i.e., the outer wall in the radial direction) of the first cylindrical structure 121 of the first connector 12 and the inner wall of the first housing 11 have a gap in the radial direction. In some embodiments, the outer peripheral surface (i.e., the outer wall in the radial direction) of the insertion portion 13 of the first connector 12 and the inner wall of the first housing 11 have a gap in the radial direction. In some embodiments, the gap fit between the first connector 12 and the first housing 11 in the radial direction can reduce the contact area between metal (e.g., the first connector 12) and non-metal (e.g., the first housing 11), improve the creepage distance, and make it less prone to electrical breakdown. In some embodiments, the gap may range from 0.1 to 0.5 mm.

[0041] In some embodiments, the first connector 12 is in a preset direction (e.g. Figure 7 The upper limit (in the left-right direction) is located within the first housing 11. In some embodiments, the first cylindrical structure 121 of the first connector 12 is confined within the first housing 11. In some embodiments, the interior of the first housing 11 has a first accommodating space for accommodating the first cylindrical structure 121 of the first connector 12, and the insertion portion 13 of the first connector 12 penetrates the inner wall of the first housing 11 and protrudes outside the first housing 11. In some embodiments, the first accommodating space inside the first housing 11 has two opposing first limiting surfaces in a predetermined direction, and the two ends of the first cylindrical structure 121 respectively abut against the two first limiting surfaces to achieve its limitation in the predetermined direction. In some embodiments, one of the two first limiting surfaces has a hole for the insertion portion 13 to pass through, and the other of the two first limiting surfaces has a hole for the wire harness of the circuit and device to pass through.

[0042] In some embodiments, the first housing 11 includes a first fastener 14 and a first cover 15 detachably connected to the first fastener 14, with the first connector 12 axially positioned between the first fastener 14 and the first cover 15. In some embodiments, the first fastener 14 and the first cover 15 together form a first accommodating space. In some embodiments, the first accommodating space may be provided by both the first fastener 14 and the first cover 15 (e.g., both have slots), or it may be provided by one of the first fastener 14 and the first cover 15 (e.g., one has a slot and the other has a plane).

[0043] In some embodiments, the first fastener 14 provides a first limiting surface, and the first cover 15 provides another first limiting surface. In some embodiments, there are gaps between the outer peripheral surface of the first cylindrical structure 121 of the first connector 12 and the inner wall of the first fastener 14, and between the inner wall of the first cover 15. In some embodiments, there is a gap between the outer peripheral surface of the insertion portion 13 of the first connector 12 and the inner wall of the first fastener 14.

[0044] In some embodiments, the first fastener 14 includes a first region 31 and a second region 32 surrounding the first region 31, the first region 31 being fixedly connected to the first cover 15.

[0045] In some embodiments, the first fastener 14 may be a flange. In some embodiments, the first fastener 14 may also be fixedly connected to other external structures.

[0046] In one or more embodiments of this specification, see Figure 2 , Figure 4 , Figure 6 As shown, the second connector structure 2 includes a second housing 21 and a second connector 22 disposed inside the second housing 21. The second connector 22 is used to connect one end of another circuit or device and receives the first connector 12. In some embodiments, the second connector 22 has a receiving portion 23 for accommodating the insertion portion 13. High voltage conduction is achieved by inserting the insertion portion 13 into the receiving portion 23 and making direct or indirect contact with the receiving portion 23.

[0047] In some embodiments, the second connector 22 may include a second cylindrical structure 221 and a cylindrical receiving portion 23 connected to the second cylindrical structure 221. In some embodiments, one end of the second cylindrical structure 221 is open to accommodate the wiring harness of the other circuit or device, and the other end of the second cylindrical structure 221 is closed and connected to the cylindrical receiving portion 23. In some embodiments, the axis of the second cylindrical structure 221 and the axis of the cylindrical receiving portion 23 may be located on the same second axis. In some embodiments, a preset direction is also located on the second axis, and when the first connector structure 1 and the second connector structure 2 are engaged, the first axis may coincide with the second axis.

[0048] In some embodiments, the material of the second connector 22 may be beryllium copper or Kovar alloy. In some embodiments, both beryllium copper and Kovar alloy are low-magnetic materials, which can avoid the influence of the material's own residual magnetism on the electron beam. In some embodiments, the outer surface of the second connector 22 is rounded to avoid sharp parts, so as to prevent tip discharge when high voltage is applied externally. In some embodiments, the material of the second housing 21 may be a material with a dielectric constant ≥2, such as plastic, ceramic, glass, rubber, or a composite thereof. In some embodiments, the outer corners of the second housing 21 are rounded to prevent the high voltage inside the second connector 22 from breaking down other surrounding metal parts and causing high-voltage discharge.

[0049] In some embodiments, the second connector 22 and the second housing 21 are in a preset direction (e.g., Figure 6 The radial direction (e.g., the left and right directions in the middle) Figure 6 In some embodiments, the outer peripheral surface (i.e., the outer wall in the radial direction) of the second cylindrical structure 221 of the second connector 22 and the inner wall of the second housing 21 have a gap in the radial direction. In some embodiments, the outer peripheral surface (i.e., the outer wall in the radial direction) of the receiving portion 23 of the second connector 22 and the inner wall of the second housing 21 have a gap in the radial direction. In some embodiments, the gap fit between the second connector 22 and the second housing 21 in the radial direction can reduce the contact area between metal (e.g., the second connector 22) and non-metal (e.g., the second housing 21), improve the creepage distance, and make it less prone to electrical breakdown. In some embodiments, the gap may range from 0.1 to 0.5 mm.

[0050] In some embodiments, the second connector 22 is in a preset direction (e.g. Figure 6The upper limit (in the left-right direction) is located within the second housing 21. In some embodiments, the second cylindrical structure 221 of the second connector 22 is confined within the second housing 21. In some embodiments, the interior of the second housing 21 has a second accommodating space for accommodating the second cylindrical structure 221 of the second connector 22, and the accommodating portion 23 of the second connector 22 penetrates through the inner wall of the second housing 21 and protrudes outside the second housing 21. In some embodiments, the second accommodating space inside the second housing 21 has two opposing second limiting surfaces in a predetermined direction, and the two ends of the second cylindrical structure 221 respectively abut against the two second limiting surfaces to achieve its limiting in the predetermined direction. In some embodiments, one of the two second limiting surfaces has a hole for the accommodating portion 23 to pass through, and the other of the two second limiting surfaces has a hole for the wire harness of the other circuit and device to pass through.

[0051] In some embodiments, the second housing 21 includes a second fastener 24 and a second cover 25 detachably connected to the second fastener 24, and the second connector 22 is axially positioned between the second fastener 24 and the second cover 25. In some embodiments, the second fastener 24 and the second cover 25 together form a second accommodating space. In some embodiments, the second accommodating space may be provided jointly by the second fastener 24 and the second cover 25 (e.g., both have slots), or it may be provided by one of the second fastener 24 and the second cover 25 (e.g., one has a slot and the other has a plane).

[0052] In some embodiments, the second fastener 24 provides a second limiting surface, and the second cover 25 provides another second limiting surface. In some embodiments, there are gaps between the outer peripheral surface of the second cylindrical structure 221 of the second connector 22 and the inner wall of the second fastener 24, and between the inner wall of the second cover 25. In some embodiments, there is a gap between the outer peripheral surface of the receiving portion 23 of the second connector 22 and the inner wall of the second fastener 24.

[0053] In some embodiments, the second fastener 24 includes a third region 33 and a fourth region 34 surrounding the third region 33, the third region 33 being fixedly connected to the second cover 25.

[0054] In some embodiments, the second region 32 of the first fastener 14 is fixedly connected to the fourth region 34 of the second fastener 24 so as to achieve overall fixation and retention of the first connector structure 1 and the second connector structure 2 after the insertion part 13 of the first connector 12 is inserted into the receiving part 23 of the second connector 22.

[0055] In some embodiments, the second fastener 24 may be a flange. In some embodiments, the second fastener 24 may also be fixedly connected to other external structures.

[0056] In one or more embodiments of this specification, see Figure 9 As shown, a first radial limiting structure 81 is provided between the first connector 12 and the first housing 11. During assembly, the first radial limiting structure 81 makes it easier to achieve a gap between the outer periphery of the first connector 12 and the inner wall of the first housing 11. In some embodiments, the first radial limiting structure 81 includes a first groove and a first boss that match each other. One of the first connector 12 and the first housing 11 has a first groove that is formed along its axial direction, and the other of the first connector 12 and the first housing 11 has a first boss that extends along its axial direction. In some embodiments, the first boss may be an annular boss, and correspondingly, the first groove may be an annular groove. In other embodiments, the first boss may be a plurality of blocks arranged in a ring array, and correspondingly, the first groove may be a plurality of grooves arranged in a ring array that match the shape of the blocks.

[0057] In some embodiments, the first radial limiting structure 81 may be located on either the first cylindrical structure 121 of the first connector 12 or on one of the two first limiting surfaces. In other embodiments, a first radial limiting structure 81 may also be provided between each end of the first cylindrical structure 121 and the two first limiting surfaces.

[0058] In some embodiments, the first groove and the first boss of the first radial limiting structure 81 are engaged to make the axis of the first connector 12 coincide with the axis of the first housing 11, so that any point on the outer periphery of the first connector 12 is equal or approximately equal to any point on the inner wall of the first housing 11, so as to avoid contact between a certain point on the outer periphery of the first connector 12 and the inner wall of the first housing 11 due to the displacement of the first connector 12 relative to the first housing 11 in the radial direction (e.g., displacement generated during operation or assembly error).

[0059] In one or more embodiments of this specification, see Figure 8 As shown, a second radial limiting structure 82 is provided between the second connector 22 and the second housing 21. During assembly, the second radial limiting structure 82 makes it easier to achieve a gap between the outer periphery of the second connector 22 and the inner wall of the second housing 21. In some embodiments, the second radial limiting structure 82 includes a mutually matching second groove and a second boss. One of the second connector 22 and the second housing 21 has a second groove opening in its axial direction, and the other of the second connector 22 and the second housing 21 has a second boss extending in its axial direction. In some embodiments, the second boss may be an annular boss, and correspondingly, the second groove may be an annular groove. In other embodiments, the second boss may be a plurality of blocks arranged in a ring array, and correspondingly, the second groove may be a plurality of grooves arranged in a ring array that match the shape of the blocks.

[0060] In some embodiments, the second radial limiting structure 82 may be located on either the second cylindrical structure 221 of the second connector 22 or on one of the two second limiting surfaces. In other embodiments, a second radial limiting structure 82 may be provided between each end of the second cylindrical structure 221 and the two second limiting surfaces.

[0061] In some embodiments, the second groove and the second boss of the second radial limiting structure 82 are engaged to make the axis of the second connector 22 coincide with the axis of the second housing 21, so that any point on the outer periphery of the second connector 22 is equal or approximately equal to any point on the inner wall of the second housing 21, so as to avoid contact between a certain point on the outer periphery of the second connector 22 and the inner wall of the second housing 21 due to the displacement of the second connector 22 relative to the second housing 21 in the radial direction (e.g., displacement generated during operation or assembly error).

[0062] In one or more embodiments of this specification, the insertion portion 13 of the first connector 12 and the receiving portion 23 of the second connector 22 are interference-fitted. In some embodiments, see [link to relevant documentation]. Figure 2 As shown, the receiving part 23 has one or more mating grooves 231 along its axial direction, and an arc-shaped plate structure is formed between each two adjacent mating grooves 231. When the insertion part 13 of the first connector 12 is inserted into the receiving part 23 of the second connector 22, the arc-shaped plate structure is allowed to undergo a certain deformation to achieve the above-mentioned interference fit.

[0063] In one or more embodiments of this specification, the receiving portion 23 includes an outer annular structure and an inner annular structure located inside the outer annular structure, wherein there is a gap between the outer annular structure and the second housing 21. In some embodiments, the inner annular structure is used to receive the insertion portion 13 and to have an interference fit with the insertion portion 13. The inner annular structure has one or more mating grooves 231 along its axial direction, and an arc-shaped plate structure is formed between every two adjacent mating grooves 231. When the insertion portion 13 of the first connector 12 is inserted into the receiving portion 23 of the inner annular structure of the second connector 22, the arc-shaped plate structure is allowed to undergo a certain deformation to achieve the interference fit described above. In some embodiments, the outer annular structure is used to limit the deformation of the arc-shaped plate structure to prevent the arc-shaped plate structure from contacting the second housing 21 after deformation, thereby maintaining the gap between the outer annular structure of the second connector 22 and the second housing 21.

[0064] In other embodiments of this specification, see Figure 10As shown, the receiving portion 23 of the second connector 22 is provided with an elastic element 41 and a slider 42 that can move along the axial direction of the receiving portion 23. The two ends of the elastic element 41 abut against the inner wall of the receiving portion 23 and the slider 42, respectively, so that the slider 42 can slide inside the receiving portion 23. In some embodiments, the elastic element 41 can be a spring. In some embodiments, the elastic element 41 and the slider 42 have the same material as the receiving portion 23 of the second connector 22, such as the aforementioned beryllium copper or Kovar alloy.

[0065] In some embodiments, the insertion portion 13 of the first connector 12 abuts against the slider 42, and the elastic member 41 provides a force to the slider 42 toward the insertion portion 13 to ensure tight contact between the insertion portion 13 and the slider 42. In this embodiment, by adjusting the position of the slider 42, the end of the insertion portion 13 can be adjusted to have a longer stroke within the accommodating range of the receiving portion 23, allowing the user to adjust the spacing between the first connector structure 1 and the second connector structure 2 according to environmental requirements and ensuring good connection performance. In a further embodiment of this embodiment, the insertion portion 13 of the first connector 12 may also contact the inner wall of the receiving portion 23 of the second connector 22.

[0066] In some embodiments, see Figure 10 As shown, the second housing 21 is provided with a slider limiting structure 43 for limiting the position of the slider 42. In some embodiments, the slider limiting structure 43 is located at the opening of the second accommodating space of the second housing 21, and the slider limiting structure 43 protrudes inward in the radial direction from the opening of the second accommodating space so that the slider 42 can abut against the slider limiting structure 43, thereby preventing the slider 42 from leaving the second accommodating space. In some embodiments, the receiving portion 23 of the second connector 22 abuts against the slider limiting structure 43, the slider limiting structure 43 is annular, and the inner diameter of the slider limiting structure 43 is smaller than the inner diameter of the receiving portion 23 of the second connector 22, so as to simultaneously limit the position of the receiving portion 23 and the position of the slider 42.

[0067] In other embodiments, a second slider limiting structure is provided at the opening of the receiving portion 23 of the second connector 22. The second slider limiting structure is used to limit the position of the slider 42 and prevent the slider 42 from disengaging from the receiving portion 23.

[0068] In one or more embodiments of this specification, the first connector 12 and / or the second connector 22 have wire receiving spaces for accommodating wires (e.g., external high-voltage lines). In some embodiments, see [link to relevant documentation]. Figure 2 , Figure 3 As shown, the wire accommodating space is provided by a first cylindrical structure 121 and / or a second cylindrical structure 221. See also, in some embodiments... Figure 8 , Figure 9As shown, the first connector 12 and / or the second connector 22 include a wire fixing member 5, which penetrates radially through the first cylindrical structure 121 of the first connector 12 and / or the second cylindrical structure 221 of the second connector 22 and extends into the interior of the wire receiving space. In some embodiments, the wire fixing member 5 provides a radial or substantially radial force to the wire harness to bring the wire harness into contact with the inner wall of the wire receiving space, thereby enabling current transmission between them and allowing them to be fixed based on static friction.

[0069] In some embodiments, the inner wall of the wire receiving space is further provided with a clearance area 9 facing the wire fastener 5. The clearance area 9 provides space for the wire to deform after being subjected to the force of the wire fastener 5, making it less likely for the wire to come out of the wire receiving space.

[0070] In one or more embodiments of this specification, see Figure 11 , Figure 12 As shown, the first connector 12 and / or the second connector 22 include a wire receiving structure 61. The wire receiving structure 61 provides a wire receiving space for accommodating wires. The wire receiving structure 61 also has a welding area 62 for welding and fixing the wire harness to the wire receiving structure 61. In some embodiments, the wire receiving structure 61 has a cylindrical structure, and the interior of the cylindrical structure forms the wire receiving space. In some embodiments, the welding area 62 can be a welding groove formed on the cylindrical structure, which communicates with the wire receiving space. In some embodiments, the welding groove can accommodate solder and increase the contact area between the cylindrical structure and the solder.

[0071] In some embodiments, the wire is soldered to the wire housing structure 61 in the soldering area 62 by vacuum soldering, and the solder joint is ground flat and smooth to avoid discharge in a vacuum environment.

[0072] In one or more embodiments of this specification, see Figure 13 , Figure 14 As shown, the first housing 11 and / or the second housing 21 have one or more annular pressure-resistant cavities 7 along their outer edges. In some embodiments, the pressure-resistant cavities 7 are annular. In some embodiments, the plurality of annular pressure-resistant cavities 7 are along the axial direction of the housing (e.g., Figure 13 , Figure 14 Arranged sequentially in the left and right directions. The creepage distance of the entire device is increased by one or more pressure-resistant chambers 7, further improving the pressure resistance of the entire pressure-resistant plug-in device.

[0073] In some embodiments, the first fixing member 14 may include a first region 31, a second region 32 surrounding the first region 31, and a fifth region surrounding the second region 32, wherein the pressure-resistant cavity 7 may be formed in the fifth region. In some embodiments, the second fixing member 24 may include a third region 33, a fourth region 34 surrounding the third region 33, and a sixth region surrounding the fourth region 34, wherein the pressure-resistant cavity 7 may be formed in the sixth region.

[0074] In summary, in one or more embodiments of this specification, gaps are formed along the radial directions of the first connector 12 and the first housing 11, and between the second connector 22 and the second housing 21, to reduce the contact area between the connector and the housing, increase the creepage distance, and make it less prone to electrical breakdown, thereby achieving a kV-level withstand voltage strength. In some embodiments, the gap between the connector and the housing is easily achieved by providing the first radial limiting structure 81 and the second radial limiting structure 82. In some embodiments, various mating schemes for the first connector 12 and the second connector 22, as well as various fixing schemes for the connector and the wire harness, are provided to adapt to installation requirements. In some embodiments, the creepage distance is further increased by providing a withstand voltage cavity 7 on the housing, further enhancing the withstand voltage effect of the entire withstand voltage connector device.

[0075] The basic concepts have been described above. It is obvious that the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, various modifications, improvements, and corrections may be made to this specification by those skilled in the art. Such modifications, improvements, and corrections are taught in this specification and therefore remain within the spirit and scope of the exemplary embodiments described herein.

Claims

1. A pressure-resistant connector, characterized in that, It includes a first connector structure (1) and a second connector structure (2) that matches the first connector structure (1); The first connector structure (1) includes a first housing (11) and a first connector (12) disposed inside the first housing (11). The first connector (12) has an insertion portion (13) extending in a preset direction. The first connector (12) and the first housing (11) have a gap in the radial direction of the preset direction. The upper limit of the first connector (12) in the preset direction is located inside the first housing (11). The second connector structure (2) includes a second housing (21) and a second connector (22) disposed inside the second housing (21). The second connector (22) has a receiving portion (23) for accommodating the insertion portion (13). The second connector (22) and the second housing (21) have a gap in the radial direction of the preset direction. The upper limit of the second connector (22) in the preset direction is located inside the second housing (21).

2. The pressure-resistant connector according to claim 1, characterized in that, The first housing (11) includes a first fastener (14) and a first cover (15) detachably connected to the first fastener (14), and the first connector (12) is axially limited between the first fastener (14) and the first cover (15); The second housing (21) includes a second fastener (24) and a second cover (25) detachably connected to the second fastener (24), wherein the second connector (22) is axially confined between the second fastener (24) and the second cover (25).

3. The pressure-resistant connector according to claim 2, characterized in that, The first fastener (14) includes a first region (31) and a second region (32) surrounding the first region (31), the first region (31) being fixedly connected to the first cover (15); The second fastener (24) includes a third region (33) and a fourth region (34) surrounding the third region (33), the third region (33) being fixedly connected to the second cover (25); The second region (32) is fixedly connected to the fourth region (34).

4. The pressure-resistant connector according to claim 2, characterized in that, The first connector (12) and the first housing (11) have a first radial limiting structure (81), which makes the gap between the outer periphery of the first connector (12) and the inner wall of the first housing (11); The first radial limiting structure (81) includes a first groove and a first boss that match each other, one of the first connector (12) and the first housing (11) has the first groove that is opened in its axial direction, and the other of the first connector (12) and the first housing (11) has the first boss that extends in its axial direction. The second connector (22) and the second housing (21) have a second radial limiting structure (82), which creates the gap between the outer periphery of the second connector (22) and the inner wall of the second housing (21); The second radial limiting structure (82) includes a second groove and a second boss that match each other, one of the second connector (22) and the second housing (21) having the second groove opened in its axial direction, and the other of the second connector (22) and the second housing (21) having the second boss extending in its axial direction.

5. The pressure-resistant connector according to claim 1, characterized in that, The insertion portion (13) of the first connector (12) is press-fitted with the receiving portion (23) of the second connector (22), and the receiving portion (23) is provided with one or more mating grooves (231) along its axial direction.

6. The pressure-resistant connector according to claim 5, characterized in that, The receiving portion (23) includes an outer annular structure and an inner annular structure located inside the outer annular structure; There is a gap between the outer annular structure and the second shell (21); The inner annular structure is used to accommodate the insertion part (13) and to have an interference fit with the insertion part (13). The inner annular structure has one or more of the mating grooves (231) along its axial direction.

7. The pressure-resistant connector according to claim 1, characterized in that, The second connector (22) has an elastic element (41) and a slider (42) that can move along the axial direction of the receiving part (23) inside the receiving part (23). The two ends of the elastic element (41) abut against the inner wall of the receiving part (23) and the slider (42) respectively. The insertion portion (13) of the first connector (12) abuts against the slider (42).

8. The pressure-resistant connector according to claim 1, characterized in that, The first connector (12) and / or the second connector (22) have wire receiving spaces for accommodating wires; The first connector (12) and / or the second connector (22) have a wire fixing member (5) that passes through the first connector (12) and / or the second connector (22) in a radial direction and extends into the interior of the wire receiving space; The inner wall of the wire accommodating space is also provided with a clearance area (9) facing the wire fixing member (5).

9. The pressure-resistant connector according to claim 1, characterized in that, The first connector (12) and / or the second connector (22) have a wire receiving structure (61) that provides a wire receiving space for accommodating wires; The wire housing structure (61) is also provided with a welding area (62).

10. The pressure-resistant connector according to any one of claims 1 to 9, characterized in that, The first housing (11) and / or the second housing (21) have one or more annular pressure-resistant cavities (7) along their outer edges.

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