Connector

Abstract

A connector comprises a plug assembly and a socket assembly which are in pluggable connection, the plug assembly comprises a main body part, the main body part is provided with a first cavity and a second cavity which extend along a first direction, and the second cavity is closer to the socket assembly than the first cavity; the plug terminal comprises an insertion section and a connection section, the connection section is accommodated in the first cavity, and the insertion section is accommodated in the second cavity; and the limiting mechanism is arranged in the first cavity, and the limiting mechanism is at least used for limiting the movement of the connecting section in the radial direction of the first cavity. By adopting the technical scheme, the plug terminal can be prevented from being unexpectedly pulled out of the plug assembly or unexpectedly rotating, and the structural stability of the connector is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a connector. Background Art

[0002] Energy storage devices are usually connected to other devices through connectors, so that they can supply power to other devices or be charged by other devices. Common connectors include plug assemblies and socket assemblies. The plug assembly is used to connect cables, and the socket assembly is used to connect power-consuming devices or other cables.

[0003] In applications where high current is transmitted, connectors usually need to be used with heavy cables. Such heavy cables can easily cause the plug terminals installed in the connector housing to be pulled out or rotated, which can cause misalignment and rotation between the plug assembly and the socket assembly during or after connection, affecting the performance of the connector.

[0004] For example, after a heavy cable is crimped, the cable may pull the plug terminal. When the plug terminal is not fixed stably in the plug assembly, the plug terminal is likely to be pulled out of the plug assembly by the cable, damaging the connector.

[0005] For another example, after the plug assembly is docked with the socket assembly, since the plug assembly carries a long wire (or cable), during the wiring or winding process, the wire may be twisted and cause the plug assembly to rotate. Since the plug terminal in the plug assembly and the socket terminal in the socket assembly are tightly matched, the rotation of the plug assembly may also cause the socket terminal to rotate. Since the socket terminal is threadedly connected to the copper busbar (or other power-end busbar) of the electrical equipment, the rotation of the socket terminal will cause the connection between the copper busbar and the electrical connection to fail, affecting the electrical connection effect. Utility Model Content

[0006] The technical problem solved by the utility model is to provide a connector with a stable internal structure.

[0007] To solve the above technical problems, an embodiment of the utility model provides a connector, comprising a plug assembly and a socket assembly that can be plugged and connected, characterized in that the plug assembly comprises: a main body, the main body having a first cavity and a second cavity extending along a first direction, wherein the second cavity is closer to the socket assembly than the first cavity; a plug terminal, comprising an insertion section and a connecting section, the connecting section is accommodated in the first cavity, and the insertion section is accommodated in the second cavity; a limiting mechanism, arranged in the first cavity, the limiting mechanism is at least used to limit the movement of the connecting section along the radial direction of the first cavity.

[0008] Optionally, the limiting mechanism includes: a supporting structure, which is sleeved on the connecting section, and the supporting structure fills at least a part of the gap between the connecting section and the wall of the first cavity.

[0009] Optionally, the support structure includes: an annular portion, which is arranged close to the outer circumference of the connecting section; and a plurality of wing portions, which are arranged at intervals along the circumference of the annular portion on the outer surface of the annular portion and extend to the wall of the first cavity.

[0010] Optionally, the support structure includes a first part and a second part, and the first part and the second part are used to be spliced ​​together along the radial direction of the first cavity to jointly enclose a space for accommodating the connecting section.

[0011] Optionally, an extension direction of the joint seam between the first part and the second part is parallel to the first direction.

[0012] Optionally, a joint surface between the first part and the second part has a multiple-torque structure.

[0013] Optionally, the supporting structure also includes a first connecting structure, and the first part and the second part are detachably connected through the first connecting structure, and the first connecting structure includes: a snap portion, which is arranged at one of the first part and the second part and extends toward the other one; and a receiving portion, which is arranged at the other one of the first part and the second part, and the receiving portion is used to cooperate with the snap portion to connect the first part and the second part.

[0014] Optionally, the limiting mechanism further includes: a stop portion, used to limit the movement of the connecting section along the first direction.

[0015] Optionally, the stop portion includes a first protrusion extending outward from the connecting section, and along the first direction, the main body includes a first section and a second section that are detachably connected, the first section is used to form the first cavity, the second section is used to form the second cavity, and the first protrusion is clamped between the second section and the supporting structure along the first direction.

[0016] Optionally, the second section includes a stopper located between the first protrusion and the wall of the first cavity, and an end of the support structure along the first direction is adjacent to the stopper and the first protrusion.

[0017] Optionally, the support structure has a first end and a second end relative to each other along the first direction, the second end is closer to the second cavity than the first end, the main body is provided with a second protrusion extending from the wall of the first cavity toward the plug terminal, and the first end is abutted against the second protrusion.

[0018] Optionally, the socket assembly includes: a body having a third cavity extending along a second direction; a socket terminal accommodated in the third cavity, wherein both ends of the third cavity along the second direction respectively expose at least a portion of the socket terminal, and the socket terminal is used to be electrically connected to the plug terminal.

[0019] Optionally, there is a space between the insertion section and the second cavity for inserting the socket terminal.

[0020] Optionally, the socket terminal includes: a first electrical connection part, used to be electrically connected to the plug terminal; a second electrical connection part, electrically connected to the first electrical connection part, the second electrical connection part is farther away from the plug assembly than the first electrical connection part, at least a portion of the second electrical connection part extends out of the second cavity to connect an electrical device, and the outer contour of the second electrical connection part fits with the inner wall of the third cavity.

[0021] Optionally, the connector further includes an anti-rotation mechanism, including: a limiting portion, arranged on the second electrical connection portion; a mating portion, arranged on the inner wall of the third cavity, and the mating portion is used to cooperate with the limiting portion to limit the rotation of the socket terminal in the third cavity.

[0022] Optionally, the connector also includes: a pin portion, the second electrical connection portion is provided with a first hole, the wall of the third cavity is provided with a second hole corresponding to the first hole, and the pin portion is used to pass through the second hole and at least partially insert into the first hole to limit the rotation of the socket terminal in the third cavity.

[0023] Optionally, the connector further includes: a conductor gland connected to an end of the main body away from the socket assembly, the conductor gland being used for allowing a first conductor to pass through and sealing the first cavity, the conductor gland being provided with a first sealing sleeve and a second sealing sleeve having different diameters, wherein at least the second sealing sleeve is detachably arranged on the conductor gland.

[0024] Compared with the prior art, the technical solution of the embodiment of the utility model has the following beneficial effects:

[0025] Compared with the prior art, the present application sets a limiting mechanism in the first cavity of the plug assembly to firmly clamp the plug terminal in the first cavity, thereby reducing the assembly gap between the plug terminal and the inner wall of the first cavity and increasing the contact area between the plug terminal and the inner wall of the first cavity to avoid the plug terminal from shaking in the first cavity and enhance the structural stability inside the plug assembly.

[0026] Furthermore, the support structure includes a first part and a second part, and the assembly of the support structure can be completed by connecting the first part and the second part, which can simplify the assembly procedure and make the operation easier.

[0027] Furthermore, the first end of the support structure abuts against the second protrusion, and the second end abuts against the first protrusion. When the first section and the second section of the main body are connected, the stopper, the support structure and the second protrusion are closely abutted in sequence, so that the support structure can be stably clamped in the first cavity. At the same time, the second section of the main body, the first protrusion and the second end of the support structure are also closely abutted in sequence, so that the plug terminal can also be reliably clamped in the first cavity along the axial direction (for example, the first direction), thereby improving the overall structural stability of the plug assembly.

[0028] Furthermore, an anti-rotation mechanism is provided between the socket terminal and the inner wall of the third cavity, which can limit or even prevent the socket terminal from rotating in the third cavity, so as to avoid affecting the electrical connection effect between the socket terminal and the electrical equipment or the power-end busbar. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of a connector according to an embodiment of the utility model;

[0030] Figure 2 yes Figure 1 A schematic diagram of the connector from another perspective;

[0031] Figure 3 yes Figure 2 A cross-sectional view of the middle connector along the AA direction;

[0032] Figure 4 yes Figure 2 A cross-sectional view of the middle plug assembly along the AA direction;

[0033] Figure 5 yes Figure 1 Exploded view of the plug assembly;

[0034] Figure 6 yes Figure 1 A schematic diagram of the support structure and the plug terminal in the illustrated embodiment;

[0035] Figure 7 yes Figure 2 A cross-sectional view of the middle socket assembly along the AA direction;

[0036] Figure 8 yes Figure 1 Exploded view of the socket assembly;

[0037] Fig. 9 This is a typical application scenario of the utility model embodiment Figure 3 A partial magnified view of region B of the structure shown;

[0038] Fig.10 This is another typical application scenario of the utility model embodiment. Figure 3 A close-up of region B of the structure shown. DETAILED DESCRIPTION

[0039] As mentioned in the background technology, energy storage devices are usually connected to other devices through connectors, so that they can supply power to other devices or be charged by other devices. Common connectors include plug components and socket components. The plug components are used to connect cables, and the socket components are connected to power-consuming devices or other cables.

[0040] In applications where high current is transmitted, connectors usually need to be used with heavy cables. Such heavy cables can easily cause the plug terminals installed in the connector housing to be pulled out or rotated, which can cause misalignment and rotation between the plug assembly and the socket assembly during or after connection, affecting the performance of the connector.

[0041] For example, after a heavy cable is crimped, the cable may pull the plug terminal. When the plug terminal is not fixed stably in the plug assembly, the plug is likely to be pulled out of the plug assembly by the cable, damaging the connector.

[0042] For another example, after the plug assembly is docked with the socket assembly, since the plug assembly carries a long wire (or cable), during the wiring or winding process, the wire may be twisted and cause the plug assembly to rotate. Since the plug terminal in the plug assembly and the socket terminal in the socket assembly are tightly matched, the rotation of the plug assembly may also cause the socket terminal to rotate. Since the socket terminal is threadedly connected to the copper busbar (or other power-end busbar) of the electrical equipment, the rotation of the socket terminal will cause the connection between the copper busbar and the electrical connection to fail, affecting the electrical connection effect.

[0043] To solve the above technical problems, the disclosed solution provides a connector, comprising a plug assembly and a socket assembly that can be plugged and unplugged, the plug assembly comprising: a main body, the main body having a first cavity and a second cavity extending along a first direction, wherein the second cavity is closer to the socket assembly than the first cavity; a plug terminal, comprising an insertion section and a connecting section, the connecting section is accommodated in the first cavity, and the insertion section is accommodated in the second cavity; a limiting mechanism, arranged in the first cavity, the limiting mechanism is at least used to limit the movement of the connecting section along the radial direction of the first cavity.

[0044] Therefore, by setting a limiting mechanism in the first cavity of the plug assembly, the plug terminal is firmly clamped in the first cavity, thereby reducing the assembly gap between the plug terminal and the inner wall of the first cavity, and increasing the contact area between the plug terminal and the inner wall of the first cavity to avoid the plug terminal from shaking in the first cavity, thereby enhancing the structural stability inside the plug assembly.

[0045] In order to make the above-mentioned objects, features and beneficial effects of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0046] Figure 1 It is a schematic diagram of a connector 100 according to an embodiment of the present utility model.

[0047] like Figure 1 As shown, the connector 100 may include a plug assembly 1 and a socket assembly 2 .

[0048] In some embodiments, the plug assembly 1 is used to connect a first conductor 6 led out from a power transmission end (eg, a power source), and the first conductor 6 may be, for example, a cable.

[0049] Further, combined with Figure 2 The socket assembly 2 is used to connect an electrical device (also called a power end, such as a power end busbar or copper bar) to supply power to the electrical device. By plugging the plug assembly 1 and the socket assembly 2, the power transmission end can be indirectly electrically connected to the power end.

[0050] Combination Figures 3 to 5 The plug assembly 1 includes a main body 11 having a first cavity 111 and a second cavity 112 extending along a first direction D1, wherein the second cavity 112 is closer to the socket assembly 2 than the first cavity 111.

[0051] In some embodiments, the first cavity 111 and the second cavity 112 are in communication.

[0052] Further, the first direction D1 may be, for example, the direction from the plug assembly 1 to the socket assembly 2 in the plugged state. In some embodiments, the plug assembly 1 and the socket assembly 2 are respectively substantially in the shape of long columns, and the first direction D1 may be, for example, the axial direction of the two.

[0053] Furthermore, the plug assembly 1 further comprises a plug terminal 12 , and two ends of the plug terminal 12 along the first direction D1 are electrically connected to the first conductor 6 and the socket assembly 2 respectively.

[0054] Further, the plug terminal 12 may include an insertion section 121 and a connection section 122, wherein the connection section 122 is accommodated in the first cavity 111, and the insertion section 121 is accommodated in the second cavity 112. Further, the insertion section 121 and the connection section 122 are electrically connected. Further, the insertion section 121 is used to be inserted into the socket assembly 2 to achieve electrical connection with the socket terminal 22. The connection section 122 is used to be electrically connected to the first conductor 6.

[0055] Furthermore, an anti-contact cap 8 is provided at one end of the insertion section 121 close to the socket terminal 22 to avoid the risk of leakage or electric shock caused by accidental touch.

[0056] In some embodiments, on a plane perpendicular to the first direction D1 , a projected area of ​​the insertion segment 121 may be smaller than a projected area of ​​the connection segment 122 .

[0057] Furthermore, the plug assembly 1 further includes a limiting mechanism 13, which is disposed in the first cavity 111, and the limiting mechanism 13 is at least used to limit the movement of the connecting section 122 along the radial direction of the first cavity 111 (for example, in a plane perpendicular to D1). Thus, the plug terminal 12 can be prevented from shaking in the socket assembly 2, which would affect the electrical connection effect.

[0058] In a specific implementation, combined with Figure 6 The limiting mechanism 13 includes: a supporting structure 14, which is sleeved on the connecting section 122, and the supporting structure 14 fills at least a part of the gap between the connecting section 122 and the wall of the first cavity 111.

[0059] Further reference Figures 3 to 6 The support structure 14 includes: an annular portion 141 and a plurality of wings 142. The annular portion 141 is arranged close to the outer circumference of the connecting section 122; each of the plurality of wings 142 is arranged at intervals along the circumference of the annular portion 141 on the outer surface of the annular portion 141 and extends to the wall of the first cavity 111.

[0060] Specifically, the inner wall of the annular portion 141 (for example, the wall facing the connecting section 122) is closely fitted with the outer surface of the connecting section 122, and the outer peripheral surface of the support structure 14 is closely fitted with the inner wall of the first cavity 111. The outer peripheral surface of the support structure 14 can be, for example, a surface formed by the end surfaces of the ends of the plurality of wings 142 away from the annular portion 141. Thus, along the radial direction of the first cavity 111, there is no assembly gap between the inner wall of the first cavity 111, the support structure 14 and the connecting section 122, which can effectively prevent the plug terminal 12 from shaking in the radial direction of the first cavity 111, thereby affecting the stability of the structure.

[0061] In some embodiments, the annular portion 141 of the support structure 14 may extend in a trumpet shape along the first direction D1 in a direction away from the second cavity 112 .

[0062] Specifically, the annular portion 141 may further include a first fitting section 1411, a transition section 1412, and a second fitting section 1413. The second fitting section 1413 is closer to the second cavity 112 than the first fitting section 1411. The transition section 1412 is connected between the first fitting section 1411 and the second fitting section 1413. In other words, along the first direction D1, the first fitting section 1411, the transition section 1412, and the second fitting section 1413 are connected end to end in sequence.

[0063] Further, the outer circumference of the first fitting section 1411 fits with the inner wall of the first cavity 111. In other words, the first fitting section 1411 abuts against the inner wall of the first cavity 111 along the radial direction. In some embodiments, there may be a non-zero gap between the outer circumference of 1411 and the connecting section 122.

[0064] Furthermore, the inner wall of the second fitting section 1413 fits with the outer peripheral surface of the connecting section 122 .

[0065] In other words, the diameter of the area enclosed by the first fitting section 1411 is greater than the diameter of the area enclosed by the second fitting section 1413. Therefore, the design of the bell mouth makes the insertion of the first conductor 6 smoother.

[0066] Furthermore, the transition section 1412 extends obliquely from the first fitting section 1411 along the first direction D1 and along a direction away from the inner wall of the first cavity toward the second fitting section 1413 .

[0067] Further, the wing portion may be disposed between 1412 and the inner wall of the first cavity 111 , and / or disposed between 1413 and the inner wall of the first cavity 111 to fill the gap between 122 and the inner wall of the first cavity 111 .

[0068] Furthermore, along the first direction D1, the support structure 14 has a first end 146 and a second end 147. The second end 147 is closer to the second cavity 112 than the first end 146.

[0069] Furthermore, the first end 146 and the second end 147 are respectively provided with a first opening 148 and a second opening 149 along the axis of the first cavity 111 , and the two openings communicate with the hollow portion inside the support structure 14 . The connecting section 122 can be inserted into the second fitting section 1413 from the second opening 149 .

[0070] In some embodiments, the first conductor 6 needs to pass through the first opening 148 to be electrically connected to the connecting section 122. Therefore, in actual use, on a plane perpendicular to the first direction D1, the area of ​​the first opening 148 may be larger than the area of ​​the second opening 149 to allow first conductors 6 of different sizes to be inserted.

[0071] Furthermore, the first opening 148 is formed by the first fitting section 1411 , and the second opening 149 is formed by the second fitting section 1413 .

[0072] In some embodiments, on a plane perpendicular to the first direction D1, the area enclosed by the projection of the connecting section 122 may be slightly larger than the cross-sectional area of ​​the second opening 149. Thus, when the connecting section 122 is inserted into the second opening 149, the second fitting section 1413 may be slightly deformed to generate a contraction force toward the outer peripheral surface of the connecting section 122, so that the connecting section 122 is more firmly clamped by the second fitting section 1413.

[0073] Furthermore, on a plane perpendicular to the first direction D1, the cross-sectional area of ​​the first cavity 111 may be slightly smaller than the area enclosed by the projection of the first fitting section 1411. Thus, in the assembled state, there will be a certain amount of compression between the inner wall of the first cavity 111 and the outer peripheral surface of the first fitting section 1411, thereby enhancing the abutment effect between the two.

[0074] Furthermore, in the assembled state, the supporting force exerted by the inner wall of the first cavity 111 on the outer circumference of the first fitting section 1411 can be transmitted to the outer circumference of the connecting section 122 along the first fitting section 1411, the transition section 1412 and the second fitting section 1413. In this scenario, even if the outer circumference of the annular portion 141 is not provided with the wing portion 142, but there is a non-zero gap between the outer circumference of the annular portion 141 and the inner wall of the first cavity 111, the connecting section 122 can be stably clamped in the space surrounded by the inner wall of the second fitting section 1413.

[0075] Furthermore, the length of the first fitting section 1411 can be appropriately extended to increase the contact area between the outer circumference of the first fitting section 1411 and the inner wall of the first cavity 111. The longer the matching length between the support structure 14 and the first section 113, the more stably the support structure 14 can be accommodated in the first cavity 111.

[0076] Similarly, the length of the second fitting section 1413 can also be appropriately extended to increase the contact area between the inner wall of the second fitting section 1413 and the outer peripheral surface of the connecting section 122. The longer the matching length between the support structure 14 and the connecting section 122, the more stably the connecting section 122 can be clamped in the space enclosed by the inner wall of the second fitting section 1413, thereby preventing the plug terminal 12 from shaking in the plug assembly 1.

[0077] In a specific implementation, combined with Figure 5 and Figure 6The support structure 14 includes a first portion 143 and a second portion 144, which are used to be assembled along the radial direction of the first cavity 111 to jointly enclose a space for accommodating the connecting section 122. Therefore, the support structure 14 can be sleeved on the connecting section 122 by only assembling the first portion 143 and the second portion 144, making the assembly of the plug assembly 1 easier.

[0078] Furthermore, the extending direction of the joint seam between the first portion 143 and the second portion 144 is parallel to the first direction D1. In other words, the joint seam extends from the first opening 148 to the second opening 149 along the first direction D1.

[0079] In a typical application scenario, one of the first part 143 and the second part 144 can be firstly fitted to the outer circumference of the connecting section 122, and then the first part 143 and the second part 144 can be spliced ​​together. In other words, during assembly, the first part 143 and the second part 144 only need to be snapped together and spliced ​​to the outer circumference of the connecting section 122 from opposite sides of the connecting section 122 in the radial direction, and the assembly can be completed, which is easy to operate.

[0080] Furthermore, the joint surface 145 of the first portion 143 and the second portion 144 has a multiple-torque structure.

[0081] In some embodiments, on a plane perpendicular to the first direction D1, the edge of the projection of the multiple meandering structure may be, for example, a Z-shaped structure. Figure 6 The design of the multiple zigzag structure enables the first portion 143 and the second portion 144 to abut against each other in the radial direction in the spliced ​​state, so as to limit the relative movement of the first portion 143 and the second portion 144 in the radial direction of the first cavity 111 .

[0082] In a variation, on a plane perpendicular to the first direction D1, the projection of the multiple zigzag structure formed by the joint surface 145 of the first part 143 and the second part 144 may be in the shape of a "J", that is, the contact surface of one of the first part 143 and the second part 144 forms a protrusion (not shown in the figure) toward the other, and the other of the first part 143 and the second part 144 is provided with a groove (not shown in the figure) for receiving the protrusion. In the spliced ​​state, the cooperation of the protrusion and the groove can limit the relative movement of the first part 143 and the second part 144 along the radial direction of the first cavity 111.

[0083] In a variation, the support structure 14 further includes a first connection structure, and the first part 143 and the second part 144 are detachably connected via the first connection structure.

[0084] Furthermore, the first connection structure includes a buckle portion (not shown in the figure) and a receiving portion (not shown in the figure). The buckle portion can be provided at one of the first part 143 and the second part 144 and extend toward the other one; the receiving portion is provided at the other one of the first part 143 and the second part 144, and the receiving portion is used to cooperate with the buckle portion to connect the first part 143 and the second part 144. Thus, the relative displacement between the first part 143 and the second part 144 can be reliably limited by the clamping cooperation between the buckle portion and the receiving portion.

[0085] In a specific implementation, continue to refer to Figures 3 to 5 The limiting mechanism 13 further includes a stopper 15 for limiting the movement of the connecting section 122 along the first direction D1. Thus, the socket terminal 22 can be prevented from being ejected or pulled out of the plug assembly 1 along the first direction D1 or the opposite direction of the first direction D1, thereby damaging the connector 100.

[0086] Furthermore, the stop portion 15 includes a first protrusion 151 extending outward from the connecting section 122. Along the first direction D1, the main body 11 includes a first section 113 and a second section 114 that are detachably connected, the first section 113 is used to form the first cavity 111, the second section 114 is used to form the second cavity 112, and the first protrusion 151 is clamped between the second section 114 and the supporting structure 14 along the first direction D1.

[0087] In some embodiments, a connection surface of the first segment 113 and the second segment 114 may be perpendicular to the first direction D1 .

[0088] Furthermore, along the first direction D1, the first segment 113 may include a third end 1131 and a fourth end 1132, wherein the fourth end 1132 is closer to the second segment 114 than the third end 1131. The second segment 114 may include a fifth end 1141 and a sixth end 1142, wherein the fifth end 1141 is closer to the first segment 113 than the sixth end 1142.

[0089] Furthermore, the fourth end 1132 of the first section 113 and the fifth end 1141 of the second section 114 are detachably connected.

[0090] In some embodiments, at least a portion of the inner wall of the first section 113 near the fourth end 1132 is provided with an internal thread, and at least a portion of the second section 114 near the fifth end 1141 can extend into the first cavity 111 and is provided with an external thread that matches the internal thread provided on the first section 113. Thus, the first section 113 and the second section 114 can be detachably connected through the cooperation of the internal thread and the external thread.

[0091] In some embodiments, when the first section 113 and the second section 114 are in a connected state, the first cavity 111 and the second cavity 112 partially overlap. For ease of description, in this embodiment, the portion containing the insertion section 121 when the first section 113 and the second section 114 are in a connected state is recorded as the second cavity 112.

[0092] Furthermore, the first protrusion 151 may extend from the outer circumference of the first section 113 toward the inner wall of the first cavity 111. When the connecting section 122 is inserted into the space in the support structure 14 from the second opening 149, the second end 147 of the support structure 14 can abut against the first protrusion 151.

[0093] Further, the first cavity 111 may include a first area Z1 and a second area Z2, and the second area Z2 may be, for example, an area between the fifth end 1141 of the second section 114 and an end of the insertion section 121 close to the first section 113. The inner wall of the second area Z2 may be closely fitted to the outer peripheral surface of the insertion section 121. Thus, the inner wall of the second area Z2 may also be used to clamp the plug terminal 12 in the radial direction to prevent the plug terminal 12 from shaking.

[0094] In some embodiments, the portion where the connecting section 122 fits against the inner wall of the second zone Z2 may be provided with an anti-rotation mechanism 3 .

[0095] Furthermore, the anti-rotation mechanism 3 may, for example, include an anti-rotation surface provided on the outer periphery of the connecting section 122 , and a flat pressure surface structure provided on the inner wall of the second area Z2 and adapted to the anti-rotation surface.

[0096] For example, on a plane perpendicular to the first direction D1, the cross section of the connecting section 122 may be substantially circular, and may be provided with straight line segments on two radially opposite sides, the straight line segments forming an anti-rotation surface. The anti-rotation surface may be obtained by cutting the originally cylindrical connecting section 122, or may be prepared by integral molding.

[0097] Similarly, on a plane perpendicular to the first direction D1, the cross-section of the second area Z2 is also roughly circular, and has straight line segments on two radially opposite sides, which form a pressure plane structure that matches the anti-rotation surface to limit the rotation of the plug terminal 12 in the second cavity 112.

[0098] Further, the inner wall shape of the second area Z2 is adapted to the outer contour of the corresponding part of the connecting section 122, and forms a step structure 117. In the assembled state, the first protrusion 151 can abut against the step structure 117 in the first direction D1. Thus, along the first direction D1, the first protrusion 151 can be clamped between the support structure 14 and the second section 114. More specifically, the first protrusion 151 can be clamped between the first end 146 and the step structure 117.

[0099] In some embodiments, the length of the second region Z2 extending along the first direction D1 can be appropriately increased to increase the area of ​​the fitting portion between the inner wall of the second region Z2 and the connecting section 122, thereby further enhancing the stability of the internal structure of the plug assembly 1.

[0100] Furthermore, the second section 114 includes a stopper 115 located between the first protrusion 151 and the wall of the first cavity 111 , and an end of the support structure 14 along the first direction D1 is adjacent to the stopper 115 and the first protrusion 151 .

[0101] Specifically, the fifth end 1141 of the second segment 114 is suitable for forming the stopper 115 .

[0102] In some embodiments, the end surface of the stopper 115 in the opposite direction to the first direction D1 is flush with the end surface of the first protrusion 151. Thus, in the assembled state, the second end 147 of the support structure 14 can be abutted against the stopper 115.

[0103] Further, refer to Figure 3 The main body 11 is provided with a second protrusion 116 extending from the wall of the first cavity 111 toward the plug terminal 12 , and the first end 146 of the support structure 14 abuts against the second protrusion 116 along the opposite direction of the first direction D1 .

[0104] Furthermore, in the first direction D1, the support structure 14 is clamped between the stopper 115 and the second protrusion 116, and is gradually clamped as the first section 113 and the second section 114 are screwed together, so that the support structure 14 is more stably accommodated in the first cavity 111. At the same time, the second end 147 of the support structure 14 also supports the first protrusion 151 on the step structure 117 along the first direction D1, so that the plug terminal 12 is also more stably accommodated in the plug assembly 1.

[0105] Further, refer to Figures 3 to 5The third end 1131 of the first section 113 is provided with a third opening 1133 connected to the first cavity 111, and the sixth end 1142 of the second section 114 is provided with a fourth opening 1143 connected to the second cavity 112. The first conductor is inserted into the first cavity 111 from the third opening 1133, and further extends into the connecting section 122 through the first receiving hole 124 to complete the electrical connection with the plug terminal 12. The socket terminal 22 extends into the first cavity 111 from the fourth opening 1143 to be electrically connected to the insertion section 121 accommodated in the second cavity 112.

[0106] Furthermore, the plug terminal 12 is provided with a first receiving hole 124 (eg, Figure 5 ) to receive a first conductor 6, such as a cable.

[0107] In some embodiments, the first conductor 6 may include a conductive core (not shown in the figure) and an insulating shell (not shown in the figure) covering the outer periphery of the conductive core.

[0108] In a typical application scenario, when the first conductor 6 is electrically connected to the plug terminal 12, the insulating shell of the first conductor 6 can be stripped off to expose the conductive core for electrical connection with the plug terminal 12. Further, the conductive core is inserted into the first receiving hole 124 to complete the electrical connection between the first conductor 6 and the female terminal.

[0109] In some implementations, the conductive core of the first conductor 6 can be crimped into the first receiving hole 124 to enhance the stability of the connection and prevent the first conductor 6 from coming out in the opposite direction of the first direction D1.

[0110] In a variation, the conductive core of the first conductor 6 may also be glued into the first receiving hole 124 by conductive glue.

[0111] In a variation, the connection section 122 can be further extended along the first direction D1 to increase the depth of the first receiving hole 124 that can be used to insert the first conductor 6. Thus, the stability of the connection between the first conductor 6 and the first receiving hole 124 can be enhanced by increasing the contact surface, which is also conducive to improving the electrical connection effect.

[0112] Furthermore, the fourth opening 1143 is used to expose at least a portion of the plug terminal 12. The exposed portion of the plug terminal 12 may be, for example, the insertion section 121, so that the insertion section 121 is used to achieve electrical connection between the plug assembly 1 and the socket assembly 2.

[0113] Figure 7 yes Figure 2 A cross-sectional view of the middle socket assembly 2 along the AA perspective, Figure 8 yes Figure 1Exploded view of the socket assembly 2.

[0114] Combination Figure 3 , Figure 7 and Figure 8 The socket assembly 2 may include: a body 21, having a third cavity 211 extending along the second direction D2; a socket terminal 22, accommodated in the third cavity 211, and the two ends of the third cavity 211 along the second direction D2 respectively expose at least a portion of the socket terminal 22, and the socket terminal 22 is used to be electrically connected to the plug terminal 12.

[0115] Specifically, when the plug assembly 1 and the socket assembly 2 are in a connected state, the second direction D2 is parallel to the first direction D1 , and the positive direction of the second direction D2 is consistent with the first direction D1 .

[0116] In some embodiments, the second direction D2 may be, for example, an extending direction of the socket terminal 22 .

[0117] Furthermore, the body 21 has a third cavity 211 extending along the second direction D2, and the socket terminal 22 is accommodated in the third cavity 211. Furthermore, the body 21 can be made of insulating material to avoid accidents such as leakage.

[0118] Furthermore, along the second direction D2 , two opposite fifth openings 213 and sixth openings 214 are formed at two ends of the body 21 . The fifth opening 213 is closer to the plug terminal 12 than the sixth opening 214 .

[0119] Further, combined with Figure 3 and Figure 4 There is a space between the insertion section 121 and the second cavity 112 for inserting the socket terminal 22. When the plug assembly 1 and the socket assembly 2 are plugged together, the socket terminal 22 can be inserted into the gap between the second cavity 112 and the insertion section 121 from the fourth opening 1143.

[0120] Further, refer to Figure 7 and Figure 8 The socket terminal 22 includes a first electrical connection portion 221 and a second electrical connection portion 222, wherein the first electrical connection portion 221 is closer to the plug assembly 1 than the second electrical connection portion 222. The first electrical connection portion 221 is used to electrically connect to the plug terminal 12. That is, the first electrical connection portion 221 can be inserted into the gap between the second cavity 112 and the insertion section 121 from the fourth opening 1143.

[0121] Furthermore, there is a non-zero gap between the first electrical connection portion 221 and the inner wall of the third cavity 211 to allow at least a portion of the main body portion 11 (for example, the second section 114) to be inserted from the fifth opening 213, so as to increase the contact area and mating length of the connection and enhance the stability of the connection between the plug assembly 1 and the socket assembly 2.

[0122] Furthermore, the first electrical connection portion 221 is provided with a second receiving hole 225 extending along the first direction D1, the second receiving hole 225 is open toward the fifth opening 213, and is used to receive at least a portion of the plug terminal 12 to achieve electrical connection with the plug terminal 12. More specifically, the insertion section 121 of the plug terminal 12 can be inserted into the second receiving hole 225 to achieve electrical connection between the insertion section 121 and the first electrical connection portion 221.

[0123] Furthermore, in the plugged state, the outer peripheral surface of the insertion section 121 can be tightly fitted with the inner wall of the second receiving hole 225 to enhance the electrical connection effect and the stability of the connection.

[0124] In some embodiments, an annular groove 226 may be provided in the second receiving hole 225, which is suitable for installing an elastic contact (not shown in the figure), and the elastic contact may be made of an elastic material. The elastic contact may be, for example, a crown spring contact, a leaf spring contact, a wire spring contact, etc. When the plug terminal 12 is inserted into the second receiving hole 225, the elastic contact is squeezed and deformed, thereby generating pressure on the surface of the plug terminal 12, which can make the plug-in connection between the plug terminal 12 and the second receiving hole 225 more stable. At the same time, due to the elasticity of the elastic contact itself, the plug-in and pull-out between the plug terminal 12 and the second receiving hole 225 can be made softer, avoiding damage to the contact part during the plug-in and pull-out process.

[0125] Further reference Figure 3 , Figure 4 , Figure 7 and Figure 8 The second receiving hole 225 accommodates a central pin 228, and the central pin 228 is detachably connected to the bottom wall 2251 of the second receiving hole 225. The plug terminal 12 is provided with a third receiving hole 123 adapted to the central pin 228 to receive the central pin 228.

[0126] Specifically, the extension direction of the central pin 228 may be parallel to the second direction D2.

[0127] Furthermore, a mounting hole 2252 may be provided on the bottom wall 2251 of the second receiving hole 225 for mounting the central pin 228 .

[0128] Further, the axis of the central pin 228 may coincide with the axis of the second receiving hole 225 .

[0129] In some embodiments, the central pin 228 can be inserted into the mounting hole 2252 along the first direction D1. Furthermore, the central pin 228 and the mounting hole 2252 can be detachably connected by threading.

[0130] In a variation, the bottom wall 2251 may also be provided with a protruding pin (not shown in the figure) extending toward the central pin 228, and a corresponding matching hole (not shown in the figure) may be opened on the central pin 228, and the protruding pin and the matching hole may also be detachable by means of a threaded connection.

[0131] Furthermore, an anti-contact cap 8 may also be provided at one end of the central pin 228 close to the plug assembly 1 to prevent the operator from accidentally touching the pin and causing an electric shock.

[0132] Furthermore, a third receiving hole 123 extending along the first direction D1 is formed on the plug terminal 12 , and the third receiving hole 123 is open toward the socket terminal 22 to receive the central pin 228 .

[0133] Furthermore, in the connected state, the outer peripheral surface of the central pin 228 and the inner wall of the third receiving hole 123 are closely fitted to enhance the electrical connection effect.

[0134] From the above, the functions of the central pin 228 may include: first, increasing the contact area between the plug terminal 12 and the socket terminal 22, making the connection between the plug terminal 12 and the socket terminal 22 more stable; second, when the plug assembly 1 and the socket assembly 2 are docked, the plug terminal 12 and the socket terminal 22 are better aligned to avoid the angle between the plug assembly 1 and the socket assembly 2 during insertion, resulting in plug failure; third, it can effectively prevent the operator from getting an electric shock. For example, it can prevent the operator from accidentally inserting his finger into the second receiving hole 225, causing the risk of electric shock.

[0135] refer to Figure 8 In some embodiments, the connector 100 also includes an anti-rotation mechanism 3, which further includes: a limiting portion 31, which is arranged on the second electrical connection portion 222; a matching portion 32, which is arranged on the inner wall of the third cavity 211, and the matching portion 32 is used to cooperate with the limiting portion 31 to limit the rotation of the socket terminal 22 in the third cavity 211.

[0136] In some embodiments, the second electrical connection portion 222 may include a third section 223 and a fourth section 224, and the third section 223 and the fourth section 224 are electrically connected. The third section 223 fits tightly with the third cavity 211 so that the socket terminal 22 can be stably accommodated in the third cavity 211. Further, the fourth section 224 can extend out of the body 21 for coupling with the power terminal.

[0137] Further, the limiting portion 31 may be, for example, an anti-rotation surface provided on the outer peripheral surface of the third section 223, and the anti-rotation surface is parallel to the extension direction (i.e., the second direction D2) of the socket terminal 22. The matching portion 32 may be a matching surface provided on the inner wall of the third cavity 211 and adapted to the anti-rotation surface.

[0138] For example, on a plane perpendicular to the second direction D2, the cross section of the third section 223 may be substantially circular, and straight line sections may be formed on two radially opposite sides, and the straight line sections may form an anti-rotation surface. The anti-rotation surface may be obtained by cutting the originally cylindrical third section 223, or may be prepared by integral molding.

[0139] Similarly, on a plane perpendicular to the second direction D2, the cross section of the fifth opening 213 is also roughly circular, and has straight line segments formed on two radially opposite sides, the straight line segments forming the mating surface. In the assembled state, the anti-rotation surface and the mating surface fit together to limit the socket terminal 22 from rotating in the third cavity 211.

[0140] In some embodiments, the outer circumference of the third section 223 may be provided with two parallel anti-rotation surfaces, and the inner wall of the third cavity 211 may be provided with two mating surfaces adapted to the two anti-rotation surfaces, thereby further limiting the rotation of the socket terminal 22 in the third cavity 211.

[0141] In a variation, the limiting portion 31 may be, for example, a convex rib (not shown in the figure) extending from the inner wall of the third cavity 211 toward the third section 223, and a groove (not shown in the figure) for receiving the convex rib is provided on the third section 223, and both the convex rib and the groove may extend along the second direction D2. When the socket terminal 22 is inserted into the third cavity 211 along the second direction D2, the convex rib can be inserted into the groove. The convex rib and the groove cooperate to limit the rotation of the socket terminal 22 in the third cavity 211.

[0142] Furthermore, the connector 100 also includes: a pin portion 4, the second electrical connection portion 222 is provided with a first hole 2221, the wall of the third cavity 211 is provided with a second hole 2111 corresponding to the first hole 2221, and the pin portion 4 is used to pass through the second hole 2111 and at least partially insert into the first hole 2221 to limit the rotation of the socket terminal 22 in the third cavity 211.

[0143] In some embodiments, the first hole 2221 penetrates the second electrical connection portion 222, and the second holes 2111 are respectively provided on the radially opposite walls of the third cavity 211, and the pin portion 4 can pass through the first hole 2221 and the second hole 2111 to radially pass through the entire socket assembly 2. Thus, the socket terminal 22 is stably fixed in the third cavity 211. The pin portion 4 can limit the rotation of the socket terminal 22 in the third cavity 211, and can also play a role in stopping the socket terminal 22 from accidentally slipping out of the third cavity 211 along the second direction D2 and the opposite direction.

[0144] In a variation, the first hole 2221 may also be a blind hole, for example, and the second hole 2111 may be connected to the first hole 2221. The pin portion 4 may be inserted into the first hole 2221 through the second hole 2111, and at least a portion of the pin portion 4 may be retained in the second hole 2111. This may also lock the relative position of the body 21 and the second electrical connection portion 222.

[0145] Furthermore, a planar structure parallel to the plane where the second hole 2111 is located may also be provided on the outer wall of the third cavity 211 , so that the pin portion 4 can be more easily aligned with the second hole 2111 , thereby facilitating the insertion of the pin portion 4 .

[0146] In some embodiments, the body 21 is provided with a third protrusion 212 extending from the wall of the third cavity 211 toward the socket terminal 22. The end surface of the third protrusion 212 facing the second electrical connection portion 222 is closely fitted with the outer peripheral surface of the third section 223.

[0147] Furthermore, on a plane perpendicular to the first direction D2, the cross-sectional area of ​​the first electrical connection portion 221 may be greater than the cross-sectional area of ​​the second electrical connection portion 222. Thus, at least a portion of the first electrical connection portion 221 can abut against the end surface of the third protrusion 212 in the opposite direction to the second direction D2, so as to prevent the socket terminal 22 from coming out of the body 21 in the first direction D2.

[0148] Combination Figures 3 to 5 , Figure 7 and Figure 8 The connector 100 further includes a locking structure 7 for locking the plug assembly 1 and the socket assembly 2 after being plugged in.

[0149] In some embodiments, the locking structure 7 includes at least one locking ball 71, and at least one locking hole 72 adapted to the shape of the locking ball 71 is opened on the wall of the third cavity 211. At least one locking ball 71 corresponds to at least one locking hole 72, and the locking ball 71 can pass through the corresponding locking hole 72.

[0150] Further, refer to Figure 4At least one locking groove 73 is provided on the outer circumference of the second section 114 of the plug assembly 1, and at least one locking ball 71 corresponds to at least one locking groove 73. In the locked state, at least a portion of the locking ball 71 can be accommodated in the corresponding locking groove 73, and another portion of the locking ball 71 is accommodated in the locking hole 72. Thus, the locking ball 71 can limit the relative displacement of the plug assembly 1 and the socket assembly 2 in the first direction D1 (or the second direction D2) to achieve a locking effect.

[0151] In some embodiments, the one-to-one corresponding locking groove 73, locking ball 71 and locking hole 72 can be recorded as a locking assembly, and the number of the locking assemblies can be multiple. The multiple locking assemblies are arranged around the outer circumference of the second section 114 at intervals. In the embodiment of the present disclosure, the number of the locking assemblies is eight. In this way, it can be ensured that the plug assembly 1 and the socket assembly 2 are locked better.

[0152] Furthermore, the locking structure 7 further includes a locking ring 74 and a locking spring 75, and the locking ring 74 and the locking spring 75 are both sleeved on the body 21. Furthermore, the locking spring 75 is closer to the third section 223 of the socket terminal 22 than the locking ring 74, and the locking ring 74 can move in the first direction D1 on the outer circumferential surface of the body 21 to compress the locking spring 75, and move in the opposite direction of the first direction D1 to release the locking spring 75.

[0153] Furthermore, at least one unlocking groove 76 is formed on the inner wall of the locking ring 74 for receiving at least a portion of the locking ball 71. There is a one-to-one correspondence between at least one locking ball 71 and at least one unlocking groove 76. In the unlocked (or unlocked) state, at least a portion of the locking ball 71 is accommodated in the corresponding unlocking groove 76, and another portion of the locking ball 71 is accommodated in the corresponding locking hole 72. In this state, the locking spring 75 is in a compressed state.

[0154] refer to Figure 3 In the unlocked state, the locking groove 73, the locking hole 72 and the unlocking groove 76 are connected in sequence and surround a chamber, and the locking ball 71 is accommodated in the chamber and can move back and forth between the locking groove 73 and the unlocking groove 76 to lock or unlock the plug assembly 1 and the socket assembly 2.

[0155] In a typical application scenario, when the plug assembly 1 and the socket assembly 2 are plugged in, the second section 114 of the main body 11 is inserted into the gap between the first electrical connection portion 221 and the inner wall of the third cavity 211 along the first direction D1. When the locking groove 73 and the corresponding locking hole 72 are aligned, the locking ring 74 can move in the opposite direction of the first direction D1 under the action of the external thrust or the thrust generated by the rebound of the locking spring 75. At the same time, the locking ball 71 can be gradually pushed toward the locking groove 73 along the radial direction of the third cavity 211, and finally accommodated in the locking hole 72 and the locking groove 73 at the same time. At this time, the non-unlocking groove 76 on the inner wall of the locking ring 74 partially closes the opening of the locking hole 72 toward the locking ring 74, and firmly presses the locking ball 71 toward the locking groove 73 along the radial direction. Therefore, under the joint action of the locking hole 72, the locking ball 71 and the locking groove 73, the relative displacement of the plug assembly 1 and the socket assembly 2 along the first direction D1 is limited, that is, the plug assembly 1 and the socket assembly 2 are locked.

[0156] When unlocking, the locking ring 74 is pushed back in the first direction D1 until the unlocking groove 76 is aligned with the locking hole 72. At the same time, the plug assembly 1 is pulled out so that the second section 114 of the main body 11 is pulled out of the gap between the first electrical connection portion 221 and the inner wall of the third cavity 211. As the second section 114 is pulled out in a direction away from the second receiving hole 225, the non-locking groove 73 of the outer circumferential surface of the second section 114 pushes the locking ball 71 back to the unlocking groove 76. At this time, the locking spring 75 is in a compressed state.

[0157] In some embodiments, a stop ring 77 may be sleeved on the outer circumferential surface of the body 21. Along the first direction D1, the stop ring 77 is disposed on the side of the locking ring 74 away from the second electrical connection portion 222. In the locked state, the locking spring 75 can make the locking ring 74 abut against the stop ring 77 to maintain the locked state and prevent the locking ring 74 from falling back and causing accidental unlocking.

[0158] In some embodiments, a positioning ring 78 is further provided on the socket assembly 2 . The positioning ring 78 is sleeved on the first electrical connection portion 221 and can move on the first electrical connection portion 221 along the first direction D1 and the opposite direction thereof.

[0159] In some embodiments, reference Figure 7A positioning spring 79 may also be provided between the positioning ring 78 and the third protrusion 212. In the non-plugged state, the positioning spring 79 is in a natural state and can hold the positioning ring 78 close to the locking ball 71. At this time, the end of the positioning ring 78 that is away from the positioning spring 79 is in contact or virtual contact with the locking ball 71. Thus, in the non-plugged state, the gap between the first electrical connection portion 221 and the inner wall of the third cavity 211 can be closed by the positioning ring 78, specifically, the section of the gap between 72 and 212 along the second direction D2 can be closed to prevent the locking ball 71 from accidentally detaching from 72 and falling into the section and being difficult to remove.

[0160] Furthermore, when the plug assembly 1 and the socket assembly 2 are plugged in, the second section 114 of the plug assembly 1 can push the positioning ring 78 in the first direction D1 (or the second direction D2), so that the positioning spring 79 is gradually compressed. When the plug assembly 1 and the socket assembly 2 are unlocked, the positioning spring 79 generates a certain rebound force to help push out the second section 114 of the plug assembly 1, which can make the plug assembly 1 easier to pull out.

[0161] Continue to refer Figure 3 , Figure 7 and Figure 8 The fourth section 224 of the second electrical connection portion 222 can extend from the sixth opening 214 to be coupled to the power terminal.

[0162] In some embodiments, the power-consuming end may be, for example, a conductive copper busbar 9 , on which a coupling socket 91 may be provided, and the fourth section 224 may pass through the coupling socket 91 to achieve electrical connection with the conductive copper busbar 9 .

[0163] Specifically, the inner wall of the coupling jack 91 can be closely fitted with the outer peripheral surface of the fourth section 224 to enhance the electrical connection effect. Further, a high-conductivity gasket 92 can be additionally provided between the conductive copper busbar 9 and the third section 223. Further, on a plane perpendicular to the second direction D2, the area enclosed by the outer contour of the projection of the high-conductivity gasket 92 can be larger than the projection area of ​​the third section 223. Thus, by adding the high-conductivity gasket 92, the electrical contact area between the copper busbar and the socket terminal 22 can be increased, thereby improving the electrical connection effect.

[0164] In a typical application scenario, an external thread may be provided on the outer peripheral surface of the fourth section 224. After the fourth section 224 passes through the coupling jack 91, it may be fastened by means of an external nut 93. Furthermore, a flat washer 94 may be provided between the nut 93 and the conductive copper bar 9 to increase the force bearing area and reduce the local pressure. Furthermore, a spring washer 95 may be provided between the flat washer 94 and the nut 93 to prevent the nut 93 from loosening.

[0165] Fig. 9It is a partial schematic diagram of the connection between the conductor gland 5 and the first conductor 6 when the embodiment of the utility model is applied to large cable power supply; Fig.10 It is a partial schematic diagram of the connection between the conductor gland 5 and the first conductor 6 when the embodiment of the utility model is applicable to small cable power supply.

[0166] Combination Fig. 9 and Fig.10 In some embodiments, the connector 100 further includes: a conductor gland 5 connected to an end of the main body 11 away from the socket assembly 2, the conductor gland 5 being used for allowing a first conductor 6 to pass through and sealing the first cavity 111, the conductor gland 5 being provided with a first sealing sleeve 51 and a second sealing sleeve 52 having different diameters, wherein at least the second sealing sleeve 52 is detachably provided on the conductor gland 5.

[0167] Specifically, the conductor gland 5 can be, for example, a gland structure, and is connected to an end of the main body 11 away from the socket assembly 2. More specifically, the conductor gland 5 is connected to the third end 1131 of the first section 113.

[0168] In some embodiments, the conductor gland 5 and the main body 11 can be detachably connected by threaded connection.

[0169] Furthermore, the first conductor 6 can be inserted into the first cavity 111 through the conductor gland 5 .

[0170] Furthermore, a first sealing sleeve 51 and a second sealing sleeve 52 with different diameters are arranged in the conductor gland 5. The first sealing sleeve 51 and the second sealing sleeve 52 can both be made of elastic materials.

[0171] Furthermore, the outer diameter of the first sealing sleeve 51 is larger than the outer diameter of the second sealing sleeve 52, and the inner diameter of the first sealing sleeve 51 is equal to or slightly smaller than the outer diameter of the second sealing sleeve 52. Therefore, when the first sealing sleeve 51 is sleeved on the outer periphery of the second sealing sleeve 52, the inner wall of the first sealing sleeve 51 and the outer peripheral surface of the second sealing sleeve 52 are tightly combined and squeezed against each other, so that the connection between the first sealing sleeve 51 and the second sealing sleeve 52 is more stable.

[0172] In some embodiments, the outer peripheral surface of the first sealing sleeve 51 is tightly fitted to the inner wall of the conductor gland 5 or bonded with glue.

[0173] In a typical application scenario, when the plug assembly 1 is connected to a first conductor 6 of a larger size, a first sealing sleeve 51 is provided in the conductor gland 5. Fig. 9As shown. The size can be characterized, for example, by the cross-sectional diameter. The larger the size, the larger the cross-sectional diameter, and the thicker the corresponding cable (or wire). The first sealing sleeve 51 can fill the gap between the first conductor 6 and the conductor gland 5 to seal the first cavity 111. At the same time, when the first sealing sleeve 51 is squeezed by the first conductor 6, it will produce elastic deformation, resulting in increased friction between the first conductor 6, which is beneficial to improve the stability of the connection between the first conductor 6 and the conductor gland 5, and prevent the first conductor 6 from slipping out of the conductor gland 5 in the opposite direction of the first direction D1.

[0174] In another typical application scenario, such as Fig.10 As shown, when the plug assembly 1 is connected to a first conductor 6 of smaller size, a second sealing sleeve 52 can be added inside the first sealing sleeve 51 to close the gap between the first sealing sleeve 51 and the first conductor 6 of smaller diameter and seal the first cavity 111 .

[0175] As described above, the selection or combined use of the first sealing sleeve 51 and the second sealing sleeve 52 can make the size range of the first conductor 6 that the connector 100 can connect to a larger size, thereby improving the compatibility of the connector 100. Furthermore, the first sealing sleeve 51 and the second sealing sleeve 52 can improve the sealing effect of the first cavity 111 and improve the waterproof performance of the connector 100.

[0176] Further, combined with Figures 1 to 10 The connector 100 further includes a plurality of sealing rings 10 , which are used to improve the sealing performance of the chamber surrounded by the walls of the main body 11 , the body 21 and the conductor gland 5 , so as to improve the waterproof performance of the connector 100 .

[0177] Specifically, in some embodiments, the multiple sealing rings 10 can be respectively arranged at at least one of the following positions: between the conductor gland 5 and the first section 113 of the main body 11, between the first section 113 and the second section 114 of the main body 11, between the outer peripheral surface of the second section 114 and the inner wall of the third cavity 211, and between the second electrical connection portion 222 and the third protrusion 212.

[0178] In some embodiments, reference Figure 8 The outer periphery of the body 21 is also provided with a mounting portion 215, which is suitable for connecting with the housing of the power-using end (not shown in the figure). Furthermore, the portion of the mounting portion 215 suitable for contacting with the housing of the power-using end is provided with a sealing ring 10 to seal the gap between the mounting portion 215 and the housing of the power-using end, thereby further improving the waterproof performance of the connector 100.

[0179] In some embodiments, reference Figure 1The plug assembly 1 and the socket assembly 2 may also be respectively provided with a coding ring 101 of the same model, and the same model may be, for example, the same visual features such as color and logo of the two coding rings 101. Thus, the corresponding plug assembly 1 and socket assembly 2 can be determined by pairing the coding rings 101 to avoid mis-insertion.

[0180] The "multiple" in the embodiments of the present application refers to two or more. The first, second, third, etc. descriptions in the embodiments of the present application are only used for illustration and distinction of the described objects, and have no order, nor do they represent a special limitation on the number of devices in the embodiments of the present application, and cannot constitute any limitation on the embodiments of the present application.

[0181] Although the utility model is disclosed as above, the utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the scope defined by the claims.

Claims

1. A connector, comprising a plug assembly and a socket assembly that can be plugged and unplugged, characterized in that: The plug assembly comprises: a main body portion, the main body portion having a first cavity and a second cavity extending along a first direction, wherein the second cavity is closer to the socket assembly than the first cavity; A plug terminal, comprising an insertion section and a connection section, wherein the connection section is accommodated in the first cavity and the insertion section is accommodated in the second cavity; A limiting mechanism is arranged in the first cavity, and the limiting mechanism is at least used to limit the movement of the connecting section along the radial direction of the first cavity.

2. The connector according to claim 1, characterized in that: The limiting mechanism comprises: a supporting structure sleeved on the connecting section, wherein the supporting structure fills at least a part of a gap between the connecting section and the wall of the first cavity.

3. The connector according to claim 2, characterized in that: The support structure comprises: An annular portion, disposed close to the outer circumference of the connecting section; A plurality of wing portions are arranged at intervals on the outer surface of the annular portion along the circumference of the annular portion and extend to the wall of the first cavity.

4. The connector according to claim 2, characterized in that: The support structure includes a first part and a second part, and the first part and the second part are used to be spliced ​​together along the radial direction of the first cavity to jointly enclose a space for accommodating the connecting section.

5. The connector according to claim 4, characterized in that: An extending direction of the joint seam between the first part and the second part is parallel to the first direction.

6. The connector according to claim 4, characterized in that: The joint surface between the first part and the second part presents a multi-zigzag structure.

7. The connector according to claim 4, characterized in that: The supporting structure further includes a first connecting structure, the first part and the second part are detachably connected via the first connecting structure, and the first connecting structure includes: A buckle portion is disposed on one of the first part and the second part and extends toward the other one; a receiving portion is disposed on the other one of the first part and the second part, and the receiving portion is used to cooperate with the buckle portion to connect the first part and the second part.

8. The connector according to claim 2, characterized in that: The limiting mechanism further includes: a stop portion, used to limit the movement of the connecting section along the first direction.

9. The connector according to claim 8, characterized in that: The stop portion includes a first protrusion extending outward from the connecting section. Along the first direction, the main body includes a first section and a second section that are detachably connected. The first section is used to form the first cavity, and the second section is used to form the second cavity. The first protrusion is clamped between the second section and the supporting structure along the first direction.

10. The connector according to claim 9, characterized in that: The second section includes a stopper located between the first protrusion and a wall of the first cavity, and an end of the support structure along the first direction is adjacent to the stopper and the first protrusion.

11. The connector according to claim 2, characterized in that: The support structure has a first end and a second end opposite to each other along the first direction, the second end is closer to the second cavity than the first end, the main body is provided with a second protrusion extending from the wall of the first cavity toward the plug terminal, and the first end abuts against the second protrusion.

12. The connector according to claim 1, characterized in that The socket assembly comprises: a body having a third cavity extending along a second direction; The socket terminal is accommodated in the third cavity, and two ends of the third cavity along the second direction respectively expose at least a portion of the socket terminal, and the socket terminal is used to be electrically connected to the plug terminal.

13. The connector according to claim 12, characterized in that: There is a space between the insertion section and the second cavity for the socket terminal to be inserted.

14. The connector according to claim 12, characterized in that: The socket terminal comprises: A first electrical connection portion, used for electrically connecting to the plug terminal; The second electrical connection part is electrically connected to the first electrical connection part. The second electrical connection part is farther away from the plug assembly than the first electrical connection part. At least a portion of the second electrical connection part extends out of the second cavity to connect an electrical device. The outer contour of the second electrical connection part fits with the inner wall of the third cavity.

15. The connector according to claim 14, characterized in that: It also includes an anti-rotation mechanism, including: A limiting portion, arranged on the second electrical connection portion; The matching portion is arranged on the inner wall of the third cavity, and is used to match with the limiting portion to limit the socket terminal from rotating in the third cavity.

16. The connector according to claim 14, characterized in that Also includes: The pin portion is provided with a first hole in the second electrical connection portion, and the wall of the third cavity is provided with a second hole corresponding to the first hole, and the pin portion is used to pass through the second hole and at least partially insert into the first hole to limit the socket terminal from rotating in the third cavity.

17. The connector according to claim 1, characterized in that Also includes: A conductor gland is connected to an end of the main body away from the socket assembly, and is used for allowing a first conductor to pass through and sealing the first cavity. The conductor gland is provided with a first sealing sleeve and a second sealing sleeve with different diameters, wherein at least the second sealing sleeve is detachably arranged on the conductor gland.

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