Connecting assembly and high-voltage connector

Abstract

The connecting assembly comprises a socket, a plug and a sealing ring, the socket is provided with an annular groove, the annular groove comprises an avoiding groove, a guide groove and a plugging groove which are communicated in sequence, the outer ring side wall of the guide groove is provided with a transition slope surface, the plug comprises an annular plugging part, and the annular plugging part is provided with a sealing ring. The sealing ring is connected to the outer wall of the annular inserting part in a sleeving manner; a receding gap is formed between the sealing ring and the outer ring side wall of the receding groove. In the plugging process of the plug and the socket, the annular plugging part drives the sealing ring to be inserted into the avoiding groove, and the avoiding gap is formed between the sealing ring and the outer ring side wall of the avoiding groove, so that the insertion resistance is obviously reduced by the avoiding gap, and the blocking is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of connectors, and in particular relates to a connection component and a high-voltage connector. Background Art

[0002] Traditional high-voltage connector sockets and plugs often use a circular structure. Due to the high height of the sockets, the plastic material of the plugs and sockets is easily deformed, affecting the plug-in and unplug feel. Furthermore, the circular structure is difficult to precisely control the dimensions during processing. Currently, square-shaped plugs and sockets offer significant advantages in processing and dimensional control. However, the square structure has significant drawbacks: when the plugs and sockets deform and become concave, they can pull during plugging and unplugging, causing jamming or even blocking, thus failing to meet performance requirements. Summary of the Invention

[0003] The utility model aims to solve the technical problem in the prior art that plugs and sockets are prone to jamming during the plugging and unplugging process, and provides a connection assembly and a high-voltage connector.

[0004] In view of the above technical problems, an embodiment of the present invention provides a connection assembly, including a socket, a plug and a sealing ring, wherein the socket is provided with an annular groove, and the annular groove includes an avoidance groove, a guide groove and a plug groove connected in sequence;

[0005] A transition slope is provided on the outer ring side wall of the guide groove; in the direction from the avoidance groove toward the plug-in groove, the cross-sectional area of the avoidance groove is larger than the cross-sectional area of the plug-in groove, and the cross-sectional area of the guide groove gradually decreases as the slope of the transition slope increases;

[0006] The plug includes an annular plug-in portion, and the sealing ring is sleeved on the outer wall of the annular plug-in portion; when the annular plug-in portion drives the sealing ring to be inserted into the avoidance groove, an avoidance gap is formed between the sealing ring and the outer ring side wall of the avoidance groove; under the guidance of the transition slope, the annular plug-in portion drives the sealing ring to pass through the guide groove and be inserted into the plug-in groove, and the sealing ring abuts between the annular plug-in portion and the outer ring side wall of the plug-in groove.

[0007] Optionally, a positioning step is provided on the annular plug-in portion; the connecting assembly further comprises a cover body, the cover body is provided with an annular positioning groove, the annular plug-in portion is inserted into the annular positioning groove, and a clamping space for clamping the sealing ring is formed between the cover body and the positioning step.

[0008] Optionally, the annular plug-in portion includes a first connecting section, a clearance section, and a second connecting section connected in sequence; the positioning step and the sealing ring are both provided on the first connecting section; and an escape slope is provided on the outer side wall of the clearance section;

[0009] After the sealing ring enters the plug-in groove, the avoidance section and the second connecting section are both plugged into the avoidance groove; in the direction from the avoidance groove toward the plug-in groove, the cross-sectional area of the second connecting section is larger than the cross-sectional area of the annular plug-in portion, and the distance between the avoidance slope and the outer ring side wall of the avoidance groove gradually increases.

[0010] Optionally, the plug further comprises an annular sleeve portion, wherein the annular plug portion is arranged inside the annular sleeve portion to form an annular plug-in space between the annular sleeve portion and the annular plug portion;

[0011] The socket includes a base and an annular shell arranged around the base, the annular groove is surrounded by the outer wall of the base and the inner wall of the annular shell; the transition slope is arranged on the inner wall of the annular shell;

[0012] When the annular plug-in portion is plugged into the plug-in groove, the annular shell is plugged into the annular plug-in space.

[0013] Optionally, a slide rail is provided on the outer wall of the annular shell; a slide groove is provided on the inner side wall of the annular sleeve portion, and the plug is connected to and removed from the socket through the sliding connection between the slide rail and the slide groove.

[0014] Optionally, the socket further comprises at least one first power terminal mounted on the base, and the plug further comprises at least one second power terminal mounted in the annular plug portion, wherein the second power terminal and the first power terminal are arranged in a one-to-one correspondence;

[0015] When the annular plug-in portion is plugged into the plug-in slot, the first power terminal is electrically connected to the second power terminal.

[0016] Optionally, the plug further includes a cable and a conductor portion connected between the cable and the second power terminal.

[0017] Optionally, the socket further includes a copper busbar connected to the first power terminal.

[0018] Optionally, the connecting assembly further comprises a locking portion, which comprises a handle rotatably connected to the annular plug-in portion and a buckle mounted on the annular shell, and the handle is provided with a sliding groove that cooperates with the buckle.

[0019] The utility model also provides a high-voltage connector, comprising the above-mentioned connecting assembly.

[0020] In the present invention, the connection assembly includes a socket, a plug and a sealing ring. The socket is provided with an annular groove, and the annular groove includes an avoidance groove, a guide groove and a plug-in groove that are connected in sequence;

[0021] A transition slope is provided on the outer ring side wall of the guide groove; in the direction from the avoidance groove toward the plug-in groove, the cross-sectional area of the avoidance groove is larger than the cross-sectional area of the plug-in groove, and the cross-sectional area of the guide groove gradually decreases as the slope of the transition slope increases;

[0022] The plug includes an annular plug-in portion, and the sealing ring is sleeved on the outer wall of the annular plug-in portion; when the annular plug-in portion drives the sealing ring to be inserted into the avoidance groove, an avoidance gap is formed between the sealing ring and the outer ring side wall of the avoidance groove; under the guidance of the transition slope, the annular plug-in portion drives the sealing ring to pass through the guide groove and be inserted into the plug-in groove, and the sealing ring abuts between the annular plug-in portion and the outer ring side wall of the plug-in groove.

[0023] In the present invention, the annular groove of the socket is sequentially provided with a connected avoidance groove, a guide groove, and a plug-in groove, and a transition slope is provided on the outer ring side wall of the guide groove. In the initial stage of insertion, the annular plug-in portion drives the sealing ring to insert into the avoidance groove, and a clearance gap is formed between the sealing ring and the outer ring side wall of the avoidance groove. The clearance gap significantly reduces the resistance to insertion, allowing the annular plug-in portion and the sealing ring to slide easily into the avoidance groove, avoiding jamming or blocking. As the insertion continues, the annular plug-in portion drives the sealing ring through the avoidance groove and into the guide groove, and the sealing ring first contacts the transition slope on the guide groove. During the contact and extrusion process between the sealing ring and the transition slope, the sealing ring is compressed and evenly stressed, and is smoothly and stably inserted into the plug-in groove under the guidance of the transition slope. In this way, the sealing ring abuts between the annular plug-in portion and the outer ring side wall of the plug-in groove, which can achieve dual functions: sealing and enhancing the connection stability between the socket and the plug. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0025] Figure 1 This is a structural diagram of a connection assembly provided by an embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram of the plug and socket provided in an embodiment of the present invention in a plugged-in state;

[0027] Figure 3 yes Figure 2 A magnified structural diagram of the middle part of the structure;

[0028] Figure 4 This is a schematic diagram of a plug and a socket provided in an embodiment of the present utility model in a disconnected state;

[0029] Figure 5 This is a structural cross-sectional view of a plug and a socket in a plugged-in state provided by an embodiment of the present utility model;

[0030] Figure 6 This is a structural diagram of a plug and a socket in a plugged-in state provided by another embodiment of the present invention.

[0031] The reference numerals in the specification are as follows:

[0032] 1-socket, 11-annular groove, 111-avoidance groove, 112-guide groove, 113-plugging groove, 12-transition slope, 13-base, 14-annular shell, 141-slide rail, 15-first power terminal, 16-copper busbar, 2-plug, 21-annular plug-in part, 211-first connecting section, 212-avoidance section, 213-second connecting section, 22-avoidance slope, 23-annular sleeve part, 231-slide groove, 24-annular plug-in space, 25-second power terminal, 26-cable, 3-sealing ring, 4-cover, 5-handle, 6-clip, 7-slide groove. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] In the description of the present invention, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0035] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0036] like Figures 1 to 3 As shown, an embodiment of the present invention provides a connection assembly, including a socket 1, a plug 2 and a sealing ring 3. The socket 1 is provided with an annular groove 11, and the annular groove 11 includes an avoidance groove 111, a guide groove 112 and a plugging groove 113 connected in sequence; a transition slope 12 is provided on the outer ring side wall of the guide groove 112; from the avoidance groove 111 toward the plugging groove 113, the cross-sectional area of the avoidance groove 111 is larger than the cross-sectional area of the plugging groove 113, and the cross-sectional area of the guide groove 112 gradually increases with the slope of the transition slope 12. Gradually decreases; the plug 2 includes an annular plug-in portion 21, and the sealing ring 3 is sleeved on the outer wall of the annular plug-in portion 21; when the annular plug-in portion 21 drives the sealing ring 3 to be inserted into the avoidance groove 111, an avoidance gap is formed between the sealing ring 3 and the outer ring side wall of the avoidance groove 111; under the guidance of the transition slope 12, the annular plug-in portion 21 drives the sealing ring 3 to pass through the guide groove 112 and be plugged into the plug-in groove 113, and then the sealing ring 3 abuts between the annular plug-in portion 21 and the outer ring side wall of the plug-in groove 113.

[0037] Among them, the annular groove 11 of the socket 1 is composed of a groove, a guide groove 112 and a plug groove 113 connected in sequence, and the transition slope 12 is provided on the outer ring side wall of the guide groove 112 of the annular groove 11; the sealing ring 3 is mounted on the outer wall of the annular plug portion 21 of the plug 2. When the annular plug portion 21 of the plug 2 is inserted into the annular groove 11 of the socket 1 together with the sealing ring 3, since the cross-sectional area of the avoidance groove 111 is larger than the cross-sectional area of the plug groove 113, in the direction of the avoidance groove 111 toward the plug groove 113, the annular plug portion 21 and the sealing ring are connected. When the annular plug-in portion 21 and the sealing ring 3 are in contact with the outer ring side wall of the annular groove 11 of the socket 1, a clear space can be formed, that is, an avoidance gap is formed between the annular plug-in portion 21 and the sealing ring 3 and the outer ring side wall of the annular groove 11 at the position of the avoidance groove 111; in the initial stage of inserting the annular plug-in portion 21 and the sealing ring 3 into the annular groove 11, the presence of the avoidance gap reduces the insertion resistance, effectively changes the stress distribution, reduces deformation, and makes it easier for the annular plug-in portion 21 and the sealing ring 3 to slide into the avoidance groove 111, thereby avoiding the occurrence of jamming or stuck phenomena.

[0038] When the annular plug-in portion 21 drives the sealing ring 3 through the avoidance groove 111 and into the guide groove 112, the sealing ring 3 will first contact the transition slope 12 on the guide groove 112. Because the cross-sectional area of the guide groove 112 gradually decreases with the slope of the transition slope 12, the sealing ring 3 can be gradually compressed during the transition from the guide groove 112 to the insertion groove 113. The sealing ring 3 is evenly stressed and smoothly and stably inserted into the insertion groove 113 under the guidance of the transition slope 12. At this time, the sealing ring 3 abuts between the annular plug-in portion 21 and the outer ring sidewall of the insertion groove 113, not only achieving the sealing function, but also further enhancing the connection stability between the socket 1 and the plug 2. When the sealing ring 3 is over-compressed, it can produce elastic deformation, thereby absorbing some of the impact energy and protecting the socket 1 and the plug 2 from damage. Once the external force disappears, the sealing ring 3 can quickly return to its original shape, continuing to maintain a good sealing effect and connection stability.

[0039] When the plug 2 and the socket 1 need to be unplugged, the specific principle and process of the annular plug portion 21 and the sealing ring 3 being disengaged from the annular groove 11 of the socket 1 are similar to the aforementioned insertion process and will not be repeated here.

[0040] In the present invention, since the annular groove 11 of the socket 1 is sequentially provided with a connected avoidance groove 111, a guide groove 112 and a plug-in groove 113, and a transition slope 12 is provided on the outer ring side wall of the guide groove 112, in the initial stage of insertion, the annular plug-in portion 21 drives the sealing ring 3 to be inserted into the avoidance groove 111, and an avoidance gap is formed between the sealing ring 3 and the outer ring side wall of the avoidance groove 111. The avoidance gap significantly reduces the insertion resistance, so that the annular plug-in portion 21 and the sealing ring 3 can easily slide into the avoidance groove 111, avoiding jamming or stuck phenomena. As the insertion continues, the annular plug-in portion 21 drives the sealing ring 3 to cross the avoidance groove 111 and enter the guide groove 112. The sealing ring 3 first contacts the transition slope 12 on the guide groove 112. During the contact and extrusion process between the sealing ring 3 and the transition slope 12, the sealing ring 3 is compressed and evenly stressed, and is smoothly and stably inserted into the plug-in groove 113 under the guidance of the transition slope 12. In this way, the sealing ring 3 abuts between the annular plug-in portion 21 and the outer ring side wall of the plug-in groove 113, which can achieve dual functions, and also seal and enhance the connection stability between the socket 1 and the plug 2.

[0041] In one embodiment, if Figure 1 and Figure 4As shown, the annular plug-in portion 21 is provided with a positioning step (not shown); the connecting assembly further includes a cover body 4, which is provided with an annular positioning groove (not shown). The annular plug-in portion 21 is inserted into the annular positioning groove, and a snap-in space (not shown) is formed between the cover body 4 and the positioning step for snapping the sealing ring 3. It is understood that when the annular plug-in portion 21 is connected to the cover body 4, the positioning step of the annular plug-in portion 21 is inserted into the annular positioning groove of the cover body 4, and the snap-in space formed between the cover body 4 and the positioning step is used to install the sealing ring 3, thereby firmly installing the sealing ring 3 between the cover body 4 and the annular plug-in portion 21.

[0042] In one embodiment, if Figure 1 and Figure 3 As shown, the annular plug-in portion 21 includes a first connecting section 211, a clearance section 212 and a second connecting section 213 connected in sequence; the positioning step and the sealing ring 3 are both arranged on the first connecting section 211; an avoidance slope 22 is provided on the outer wall of the avoidance section 212; after the sealing ring 3 enters the plug-in groove 113, the avoidance section 212 and the second connecting section 213 are both plugged into the avoidance groove 111; in the direction from the avoidance groove 111 toward the plug-in groove 113, the cross-sectional area of the second connecting section 213 is larger than the cross-sectional area of the annular plug-in portion 21, and the distance between the avoidance slope 22 and the outer ring side wall of the avoidance groove 111 gradually increases. Understandably, the annular plug-in portion 21 is provided with a first connecting section 211, a clearance section 212 and a second connecting section 213 connected in sequence, the positioning step and the sealing ring 3 are provided on the first connecting section 211, and the clearance slope 22 is provided on the clearance section 212; when the annular plug-in portion 21 drives the sealing ring 3 to insert into the clearance groove 111, the distance between the clearance slope 22 and the outer ring side wall of the clearance groove 111 gradually increases, so that the gap between the second connecting section 213 and the clearance section 212 of the annular plug-in portion 21 and the outer ring side wall of the clearance groove 111 of the plug 2 gradually increases, that is, the clearance gap between the sealing ring 3 and the outer ring side wall of the clearance groove 111 can be further increased, and the insertion resistance can be further reduced, thereby avoiding jamming and stuck phenomena.

[0043] In one embodiment, if Figures 1 to 4As shown, the plug 2 also includes an annular sleeve portion 23, and the annular plug-in portion 21 is arranged in the annular sleeve portion 23 to form an annular plug-in space 24 between the annular sleeve portion 23 and the annular plug-in portion 21; the socket 1 includes a base 13 and an annular shell cover 14 arranged around the base 13, and the annular groove 11 is surrounded by the outer wall of the base 13 and the inner wall of the annular shell cover 14; the transition slope 12 is arranged on the inner wall of the annular shell cover 14; when the annular plug-in portion 21 is inserted into the plug-in groove 113, the annular shell cover 14 is inserted into the annular plug-in space 24. It can be understood that the inner wall of the annular shell 14 of the socket 1 and the outer wall of the base 13 form the annular groove 11, and an annular sleeve portion 23 is provided on the periphery of the annular plug-in portion 21 of the plug 2, and an annular plug-in space 24 is formed between the annular sleeve portion 23 and the annular plug-in portion 21. When the annular plug-in portion 21 is plugged into the plug-in groove 113, the annular shell 14 is plugged into the annular plug-in space 24, that is, the annular shell 14 fits between the inner wall of the annular sleeve portion 23 and the outer wall of the annular plug-in portion 21, thereby enhancing the tight connection between the socket 1 and the plug 2.

[0044] In one embodiment, if Figure 4 As shown, a slide rail 141 is provided on the outer wall of the annular housing 14, and a slide groove 231 is provided on the inner wall of the annular sleeve 23. The plug 2 is connected to and inserted into the socket 1 through the sliding connection between the slide rail 141 and the slide groove 231. It can be understood that the slide rail 141 is provided on the outer wall of the annular housing 14, and the slide groove 231 is provided on the inner wall of the annular sleeve 23. The shape and size of the slide groove 231 match the slide rail 141. When the plug 2 is plugged into the socket 1, the slide groove 231 on the inner wall of the annular sleeve 23 slides along the slide rail 141 on the outer wall of the annular housing 14, thereby allowing the plug 2 and the socket 1 to achieve a tight and smooth docking during relative movement. The process of plug 2 and socket 1 being pulled out of the socket is the opposite of the plugging process. The coordinated arrangement of the slide rail 141 and the slide groove 231 makes the plug 2 and socket 1 plugging and unplugging processes easier and faster.

[0045] In one embodiment, if Figure 1 、 Figure 4 、 Figure 5 and Figure 6As shown, the socket 1 further includes at least one first power terminal 15 mounted on the base 13, and the plug 2 further includes at least one second power terminal 25 mounted within the annular plug portion 21. The second power terminal 25 and the first power terminal 15 are arranged in a one-to-one correspondence; when the annular plug portion 21 is inserted into the insertion slot 113, the first power terminal 15 is electrically connected to the second power terminal 25. It is understandable that when the annular plug portion 21 is inserted into the insertion slot 113, the first power terminal 15 on the base 13 is inserted into the annular plug portion 21 of the plug 2 and electrically connected to the second power terminal 25 through surface contact, which helps provide a stable current transmission path.

[0046] In one embodiment, if Figure 1 and Figure 4 As shown, the plug 2 further includes a cable 26 and a conductor portion (not shown) connected between the cable 26 and the second power terminal 25. It is understood that the cable 26 and the second power terminal 25 of the plug 2 are connected via the conductor portion. The conductor portion is the primary medium for transmitting current from the cable 26 to the second power terminal 25 and can carry current without overheating.

[0047] In one embodiment, if Figure 1 and Figure 4 As shown, the socket 1 further includes a copper busbar 16 connected to the first power terminal 15. It can be understood that the copper busbar 16 plays a role in transmitting current between the socket 1 and the plug 2.

[0048] In one embodiment, if Figure 1 and Figure 4 As shown, the connection assembly also includes a locking portion, which includes a handle 5 rotatably connected to the annular plug-in portion 21 and a buckle 6 mounted on the annular housing 14. The handle 5 is provided with a sliding groove 7 that cooperates with the buckle 6. It is understood that the handle 5 can be rotated on the annular plug-in portion 21, and the buckle 6 is engaged in the sliding groove 7. When the handle 5 is rotated to the extreme position, the buckle 6 is engaged at the end of the sliding groove 7, so that the handle 5 is in a locked state. In this way, when the plug 2 and the socket 1 are in the plugged state, the locking portion can lock the plug 2 and the socket 1, ensuring that there is no relative movement between the plug 2 and the socket 1, thereby increasing the security of the connection. When the handle 5 is in the unlocked state, the buckle 6 can be disengaged from the sliding groove 7, allowing the user to remove the plug 2 from the socket 1.

[0049] The present invention also provides a high-voltage connector, including the above-mentioned connection assembly. In the connection assembly of the above-mentioned embodiment of the present invention, the connection assembly includes a socket 1, a plug 2 and a sealing ring 3. The socket 1 is provided with an annular groove 11, and the annular groove 11 includes an avoidance groove 111, a guide groove 112 and a plug-in groove 113 connected in sequence; a transition slope 12 is provided on the outer ring side wall of the guide groove 112; in the direction from the avoidance groove 111 to the plug-in groove 113, the cross-sectional area of the avoidance groove 111 is larger than the cross-sectional area of the plug-in groove 113, and the cross-sectional area of the guide groove 112 is inclined with the slope of the transition slope 12 and gradually decreases; the plug 2 includes an annular plug-in portion 21, and the sealing ring 3 is sleeved on the outer wall of the annular plug-in portion 21; when the annular plug-in portion 21 drives the sealing ring 3 to be inserted into the avoidance groove 111, an avoidance gap is formed between the sealing ring 3 and the outer ring side wall of the avoidance groove 111; under the guidance of the transition slope 12, the annular plug-in portion 21 drives the sealing ring 3 to pass through the guide groove 112 and be plugged into the plug-in groove 113, and then the sealing ring 3 abuts between the annular plug-in portion 21 and the outer ring side wall of the plug-in groove 113.

[0050] In the high-voltage connector of the above-mentioned embodiment of the present invention, since the annular groove 11 of the socket 1 is sequentially provided with a connected avoidance groove 111, a guide groove 112 and a plug-in groove 113, and a transition slope 12 is provided on the outer ring side wall of the guide groove 112, in the initial stage of insertion, the annular plug-in portion 21 drives the sealing ring 3 to be inserted into the avoidance groove 111, and an avoidance gap is formed between the sealing ring 3 and the outer ring side wall of the avoidance groove 111. The avoidance gap significantly reduces the insertion resistance, so that the annular plug-in portion 21 and the sealing ring 3 can easily slide into the avoidance groove 111, avoiding jamming or stuck phenomena. As the insertion continues, the annular plug-in portion 21 drives the sealing ring 3 to cross the avoidance groove 111 and enter the guide groove 112. The sealing ring 3 first contacts the transition slope 12 on the guide groove 112. During the contact and extrusion process between the sealing ring 3 and the transition slope 12, the sealing ring 3 is compressed and evenly stressed, and is smoothly and stably inserted into the plug-in groove 113 under the guidance of the transition slope 12. In this way, the sealing ring 3 abuts between the annular plug-in portion 21 and the outer ring side wall of the plug-in groove 113, and can also achieve dual functions, sealing and enhancing the connection stability between the socket 1 and the plug 2.

[0051] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included in the scope of protection of the present invention.

Claims

1. A connection assembly, characterized in that: It includes a socket, a plug and a sealing ring. The socket is provided with an annular groove, and the annular groove includes an avoidance groove, a guide groove and a plug-in groove connected in sequence; A transition slope is provided on the outer ring side wall of the guide groove; in the direction from the avoidance groove toward the plug-in groove, the cross-sectional area of the avoidance groove is larger than the cross-sectional area of the plug-in groove, and the cross-sectional area of the guide groove gradually decreases as the slope of the transition slope increases; The plug includes an annular plug-in portion, and the sealing ring is sleeved on the outer wall of the annular plug-in portion; when the annular plug-in portion drives the sealing ring to be inserted into the avoidance groove, an avoidance gap is formed between the sealing ring and the outer ring side wall of the avoidance groove; under the guidance of the transition slope, the annular plug-in portion drives the sealing ring to pass through the guide groove and be inserted into the plug-in groove, and the sealing ring abuts between the annular plug-in portion and the outer ring side wall of the plug-in groove.

2. The connection assembly according to claim 1, characterized in that A positioning step is provided on the annular plug-in portion; the connecting assembly also includes a cover body, which is provided with an annular positioning groove, the annular plug-in portion is inserted into the annular positioning groove, and a clamping space for clamping the sealing ring is formed between the cover body and the positioning step.

3. The connection assembly according to claim 2, characterized in that The annular plug-in portion includes a first connecting section, a clearance section, and a second connecting section connected in sequence; the positioning step and the sealing ring are both provided on the first connecting section; and a clearance slope is provided on the outer side wall of the clearance section. After the sealing ring enters the plug-in groove, the avoidance section and the second connecting section are both plugged into the avoidance groove; in the direction from the avoidance groove toward the plug-in groove, the cross-sectional area of the second connecting section is larger than the cross-sectional area of the annular plug-in portion, and the distance between the avoidance slope and the outer ring side wall of the avoidance groove gradually increases.

4. The connection assembly according to claim 1, wherein: The plug further includes an annular sleeve portion, wherein the annular plug portion is arranged inside the annular sleeve portion to form an annular plug-in space between the annular sleeve portion and the annular plug portion; The socket includes a base and an annular shell arranged around the base, the annular groove is surrounded by the outer wall of the base and the inner wall of the annular shell; the transition slope is arranged on the inner wall of the annular shell; When the annular plug-in portion is plugged into the plug-in groove, the annular shell is plugged into the annular plug-in space.

5. The connection assembly according to claim 4, characterized in that A slide rail is provided on the outer wall of the annular shell; a slide groove is provided on the inner side wall of the annular sleeve portion, and the plug is connected to and removed from the socket through the sliding connection between the slide rail and the slide groove.

6. The connection assembly according to claim 4, characterized in that The socket further comprises at least one first power terminal mounted on the base, and the plug further comprises at least one second power terminal mounted in the annular plug portion, wherein the second power terminal and the first power terminal are arranged in a one-to-one correspondence; When the annular plug-in portion is plugged into the plug-in slot, the first power terminal is electrically connected to the second power terminal.

7. The connection assembly according to claim 6, characterized in that The plug further includes a cable and a conductor portion connected between the cable and the second power terminal.

8. The connection assembly according to claim 6, characterized in that The socket further includes a copper busbar connected to the first power terminal.

9. The connection assembly according to claim 6, characterized in that The connecting assembly further comprises a locking portion, which comprises a handle rotatably connected to the annular plug-in portion and a buckle mounted on the annular shell, and the handle is provided with a sliding groove that cooperates with the buckle.

10. A high voltage connector, characterized in that: The invention comprises the connection assembly according to any one of claims 1 to 9.

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