DC outlet

Description

1 / 21 “DC SOCKET” CROSS REFERENCE

[0001] This application claims priority over the Patent Application Chinese Patent No. 202411104634.1, filed August 12, 2024, entitled “DC SOCKET”, the entirety of which is incorporated herein by reference. FIELD

[0002] The embodiments of the present invention relate, in general, to the technical field of electrical equipment and, more particularly, to a DC socket. BACKGROUND

[0003] A DC outlet (DC socket) is an electrical outlet for connecting a DC power source. Because direct current (DC) does not change periodically, i.e., DC does not have a zero-crossing point, during the process of connecting and disconnecting a plug, an electric arc between the plug and the outlet burns for a long time, damaging both the plug and the outlet.

[0004] Therefore, how to prevent the generation of an electric arc between the plug and the socket is a technical problem that the current DC socket needs to solve. SUMMARY

[0005] In one aspect of the present invention, a DC socket is provided. The DC socket includes: a housing; a positive wiring assembly disposed in the housing and including a terminal member and a fitting sleeve segment separated from each other; a movable contact assembly disposed in the housing and rotating relative to the housing to switch between an on position and an off position, the movable contact assembly being connected to the terminal segment and the fitting sleeve segment in the on position, the movable contact assembly being separated from the terminal segment and the fitting sleeve segment. Petition 870260050328, dated 05 / 26 / 2026, page 5 / 55 2 / 21 of a snap-fit ​​sleeve in the off position; a set of switches arranged in the housing and including an actuating member, a locking member, and a transmission member connected between the actuating member and the locking member; and a reset member arranged between the housing and the moving contact assembly. When a plug is inserted into the DC socket, the actuating member is actuated and limited by a grounding pin of the plug, the reset member is compressed, and the moving contact assembly is locked in the on position by the locking member.During the process of unplugging the DC outlet, the actuating member is adapted to rotate relative to the housing when released from the grounding pin limitation, the locking member is adapted to rotate to a position to release the moving contact assembly under the actuation of the actuating member, the resetting member drives the moving contact assembly to the off position, and the moving contact assembly is separated from the terminal segment and the snap-fit ​​sleeve segment before a positive plug pin is disengaged from the snap-fit ​​sleeve segment, so that an electrical connection between the terminal segment and the snap-fit ​​sleeve segment is severed.

[0006] In some embodiments, during the process of inserting the plug into the DC socket, the moving contact assembly comes into contact with the terminal segment and the fitting sleeve segment after the positive pin of the plug comes into contact with the fitting sleeve segment, so that the terminal segment is electrically connected to the fitting sleeve segment.

[0007] In some embodiments, the movable contact assembly includes a conductive member provided with a pair of movable contact points, one movable contact point of the pair of movable contact points is coupled to the terminal segment, and the other movable contact point Petition 870260050328, dated 05 / 26 / 2026, page 6 / 55 3 / 21 vel of the pair of mobile contact points is coupled to the snap-fit ​​sleeve segment.

[0008] In some embodiments, the moving contact assembly further includes an insulating member connected to the conductive member, the insulating member includes a mating surface and a pair of first rotating portions, and the pair of first rotating portions is rotatably connected to the housing, and during the process of inserting the grounding pin into the DC socket and pressing on the mating surface, the grounding pin drives the moving contact assembly to the on position, and the reset member is gradually compressed.

[0009] In some embodiments, the actuating member includes a first body portion, a salient portion, a first elastic member, a limiting shaft, and a pair of second rotating portions; the salient portion is disposed on one side of the first body portion facing the locking member; the first elastic member is disposed between the housing and one side of the first body portion facing away from the locking member; one end of the first body portion is connected to the transmission member by means of the limiting shaft; and the pair of second rotating portions is disposed at the other end of the first body portion and is rotatably connected to the housing; and when the grounding pin is inserted into the DC socket and actuates the salient portion, the first body portion is adapted to rotate relative to the housing and gradually compress the first elastic portion, and the first body portion is adapted to actuate the transmission portion to move.

[0010] In some embodiments, the contact surface is spaced from the protruding portion, and the contact surface is closer to the reset member than the protruding portion, and the grounding pin presses against the contact surface after actuating the portion. Petition 870260050328, dated 05 / 26 / 2026, page 7 / 55 4 / 21 salient.

[0011] In some embodiments, the transmission member includes a second body portion and a pair of movable portions, a first end of the second body portion is connected to the first body portion through the limiting shaft, the pair of movable portions is disposed at a second end of the second body portion, the locking member includes a third body portion, an end of the third body portion attaches to the second body portion and includes a pair of receiving holes, and each of the pairs of movable portions is disposed in a corresponding receiving hole, and during the process of rotation of the first body portion and gradual compression of the first elastic member, the insulating member prevents the rotation of the locking member, and each of the pairs of movable portions is adapted to move within the corresponding receiving hole.

[0012] In some embodiments, the transmission member further includes a second elastic member, one end of the second elastic member being disposed at the second end of the second body portion and the other end of the second elastic member being disposed at the locking member, and during the process of rotation and gradual compression of the first elastic member by the first body portion, the second body portion is adapted to move under the actuation of the first body portion and gradually compress the second elastic member.

[0013] In some embodiments, the third portion of the body includes a first lateral surface facing the actuating member. When the moving contact assembly is in the off position, the insulating member contacts the first lateral surface to block rotation of the locking member, and during the process of inserting the grounding pin into the DC socket and Petition 870260050328, dated 05 / 26 / 2026, page 8 / 55 5 / 21 pressure on the coupling surface, the insulating member is adapted to rotate to a position offset from the first lateral surface.

[0014] In some embodiments, the third portion of the body further includes a second lateral surface facing the actuating member and a connecting surface located between the first lateral surface and the second lateral surface, and the first lateral surface is closer to the actuating member than the second lateral surface, and when the insulating member rotates to the position offset from the first lateral surface, the second elastic member actuates the third portion of the body towards the actuating member until the connecting surface contacts the insulating member, so that the locking member locks the moving contact assembly in the on position.

[0015] It should be understood that the content described in this section is not intended to limit the main features or important characteristics of the embodiments of the present invention, nor to limit the scope of the present invention. Other features of the present invention will be readily understood from the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other features, advantages and aspects of the embodiments of the present invention will become more apparent with reference to the following detailed description, together with the accompanying drawings. In the drawings, the same reference numbers or similar reference numbers refer to the same or similar elements, where:

[0017] FIG. 1 shows a schematic structural diagram of a DC socket according to some embodiments of the present invention;

[0018] FIG. 2 shows a schematic structural diagram of a Petition 870260050328, dated 05 / 26 / 2026, page 9 / 55 6 / 21 moving contact assembly and a reset member according to some embodiments of the present invention;

[0019] FIG. 3 shows a schematic structural diagram of a set of switches according to some embodiments of the present invention;

[0020] FIG. 4 shows a cross-sectional view of the switch assembly shown in FIG. 3;

[0021] FIGS. 5 to 10 show schematic diagrams of a switching process of a set of moving contacts from the off position to the on position, according to some embodiments of the present invention; and

[0022] FIGS. 11 to 13 show schematic diagrams of a switching process of a set of moving contacts to the off position, according to some embodiments of the present invention.

[0023] Description of reference numbers:

[0024] 100 DC socket; 200 plug, 201 grounding pin, 202 positive pin;

[0025] 1 accommodation;

[0026] 2 positive wiring assembly, 21 terminal segment, 22 snap-fit ​​sleeve segment;

[0027] 3 set of movable contacts, 31 insulating member, 311 contact surface, 312 first rotating portion, 32 conductive member, 33 movable contact point;

[0028] 4 switch set, 41 actuating member, 411 first body portion, 412 protruding portion, 413 first elastic member, 414 limiting shaft, 415 second rotating portion, 42 transmission member, 421 second body portion, 422 movable portion, 423 second elastic member, 43 locking member, 431 third body portion, 4311 receiving hole, 4312 first surface Petition 870260050328, dated 05 / 26 / 2026, page 10 / 55 7 / 21 lateral, 4313 second lateral surface, 4314 connection surface, 432 third rotating portion;

[0029] 5 reset member; 6 negative wiring assembly; grounding wiring assembly. DETAILED DESCRIPTION

[0030] The embodiments of the present invention will be described in more detail below, with reference to the accompanying drawings. Although embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various ways and should not be limited by the embodiments set forth herein. Instead, these embodiments are provided to make the present invention more elucidative and complete, and can fully convey the scope of the present invention to those skilled in the art.

[0031] As used herein, the term including and its variations mean open inclusive, i.e., including but not limited to. Unless specifically indicated, the term or means and / or. The term based on means based at least in part on. The terms an example of concretization and a concretization mean at least one example of concretization. The term another concretization means at least one additional concretization. The terms first, second and similar may refer to different or identical objectives.

[0032] As described above, since the DC outlet does not have a zero-crossing point, during the process of connecting and disconnecting a plug, an electric arc between the plug and the outlet burns for a long time, damaging both the plug and the outlet. Based on this, the embodiments of the present invention provide a DC outlet 100 to, at least partially, solve the above problems. The principles of the present invention will be described below. Petition 870260050328, dated 05 / 26 / 2026, page 11 / 55 8 / 21 with reference to Figures 1 to 13.

[0033] Figure 1 shows a schematic structural diagram of a DC 100 socket according to some embodiments of the present invention. Figure 2 shows a schematic structural diagram of a moving contact assembly 3 and a reset member 5 according to some embodiments of the present invention. As shown in Figures 1 to 2, the DC 100 socket described herein generally includes a housing 1, a positive wiring assembly 2, a moving contact assembly 3, a switch assembly 4, a reset member 5, a negative wiring assembly 6, and a grounding wiring assembly 7. The positive wiring assembly 2, the negative wiring assembly 6, and the grounding wiring assembly 7 are arranged, respectively, in the housing 1. The plug 200 can be inserted into or removed from the DC 100 socket.Positive pin 202 can be connected to positive wiring assembly 2, the negative pin (not shown) can be connected to negative wiring assembly 6, and ground pin 201 can be connected to ground wiring assembly 7. Apparently, when positive pin 202 makes contact with or is disconnected from positive wiring assembly 2, the negative pin should make contact with or be disconnected from negative wiring assembly 6.

[0034] Continuing with reference to FIGS. 1 and 2, the movable contact assembly 3 is disposed in the housing 1, and the movable contact assembly 3 is rotatable relative to the housing 1, towards or away from the positive wiring assembly 2, so as to switch between an off position and a on position.

[0035] Figure 3 shows a schematic structural diagram of a switch assembly 4, according to some embodiments of the present invention. Figure 4 shows a cross-sectional view of the switch assembly 4 shown in Figure 3. The Petition 870260050328, dated 05 / 26 / 2026, page 12 / 55 9 / 21 Figures 5 to 10 show schematic diagrams of a switching process of the movable contact assembly 3 from the off position to the on position, according to some embodiments of the present invention. As shown in Figures 5 and 6, the positive wiring assembly 2 includes a terminal segment 21 and a snap-fit ​​sleeve segment 22, and the terminal segment 21 and the snap-fit ​​sleeve segment 22 are separated from each other.

[0036] With continued reference to FIGS. 2, 5 and 6, the movable contact assembly 3 is in the off position. When the movable contact assembly 3 is in the off position, it is separated from the terminal segment 21 and the snap-fit ​​sleeve segment 22, respectively, so that the terminal segment 21 and the snap-fit ​​sleeve segment 22 are not driven by each other. With continued reference to FIGS. 2, 9 and 10, the movable contact assembly 3 is in the connected position. When the movable contact assembly 3 is in the on position, the movable contact assembly 3 is connected to the terminal segment 21 and the snap-fit ​​sleeve segment 22, respectively, so that the terminal segment 21 and the snap-fit ​​sleeve segment 22 can be driven together through the movable contact assembly 3. More specifically, the terminal segment 21 and the snap-fit ​​sleeve segment 22 are driven together through the conductive member 32.

[0037] As shown in FIGS. 1, 3 and 4, the switch assembly 4 is arranged in the housing 1. The switch assembly 4 includes an actuating member 41, a locking member 43 and a transmission member 42. The transmission member 42 is connected between the actuating member 41 and the locking member 43. With continued reference to FIGS. 1 to 2, the reset member 5 is arranged between the housing 1 and the moving contact assembly 3, and the reset member 5 can be deformed under an applied force. Petition 870260050328, dated 05 / 26 / 2026, page 13 / 55 10 / 21 each at the same time.

[0038] FIGS. 11 to 13 show schematic diagrams of a switching process of the movable contact assembly 3 to the off position, according to some embodiments of the present invention. Referring to FIGS. 9 and 10, when the plug 200 is inserted into the DC socket 100, the activation member 41 is actuated and limited by the grounding pin 201, the reset member 5 is compressed and the movable contact assembly 3 is locked in the activation position by the locking member 43. Continuing with reference to FIGS. 11 to 13, during the process of removing plug 200 from DC socket 100, the activation member 41 can rotate relative to the housing 1 when released from the limitation by the grounding pin 201, the locking member 43 can rotate to a position that releases the moving contact assembly 3 under the actuation of the activation member 41, and the reset member 5 actuates the moving contact assembly 3 to the off position. Continuing with FIG.12, the movable contact assembly 3 can be separated from the terminal segment 21 and the snap-fit ​​sleeve segment 22 before the positive pin 202 of plug 200 is disengaged from the snap-fit ​​sleeve segment 22, so that the electrical connection between the terminal segment 21 and the snap-fit ​​sleeve segment 22 is cut.

[0039] It can be understood that, during the process of removing plug 200 from DC socket 100, before the positive pin 202 is disengaged from the snap-fit ​​sleeve segment 22, the movable contact assembly 3 was separated from the positive wiring assembly 2, allowing plug 200 to be removed when DC socket 100 is not energized, thus preventing arc generation between plug 200 and DC socket 100.

[0040] However, it was observed that even when plug 200 is removed while DC socket 100 is not energized, there is still Petition 870260050328, dated 05 / 26 / 2026, p. 14 / 55 11 / 21 The risk of arc generation between plug 200 and DC socket 100. This is due to the DC socket 100 not having a zero-crossing point, resulting in a long arc burning time. Although the moving contact assembly 3 was separated from the positive wiring assembly 2 before the positive pin 202 was disengaged from the snap-fit ​​sleeve segment 22, there is still a risk of arc generation between plug 200 and DC socket 100 if the arc burning time between the moving contact assembly 3 and the positive wiring assembly 2 is long and the arc is not yet extinguished when the positive pin 202 is disengaged from the snap-fit ​​sleeve segment 22.

[0041] According to embodiments of the present invention, when the movable contact assembly 3 is in the activation position, the movable contact assembly 3 is locked by the locking member 43 and cannot rotate, so that, before the locking member 43 rotates to the release position of the movable contact assembly 3, the movable contact assembly 3 is always locked in the activation position by the locking member 43, and the terminal segment 21 and the interlocking sleeve segment 22 are driven together through the driving member 32.During the process of removing plug 200, when actuating member 41 is released from limitation by grounding pin 201, locking member 43 can rotate to the release position of moving contact assembly 3 under the actuation of actuating member 41, and resetting member 5 can release power and quickly actuate moving contact assembly 3 to rotate away from positive wiring assembly 2, rapidly extinguishing the arc between moving contact assembly 3 and positive wiring assembly. 2. Furthermore, as the arc between moving contact assembly 3 and positive wiring assembly 2 can be rapidly extinguished, moving contact assembly 3 is separated from positive wiring assembly 2 before positive pin 202 of plug 200 is disengaged. Petition 870260050328, dated 05 / 26 / 2026, page 15 / 55 12 / 21 of the 22-piece sleeve segment, the arc between the 200 plug and the 100 DC socket can be further prevented.

[0042] Furthermore, since the arc between the moving contact assembly and the positive wiring assembly 2 can be quickly extinguished, a contact point of the moving contact assembly 3 and a contact point of the positive wiring assembly 2 can be prevented from suffering severe wear, and the plastic around the contact points can also be prevented from suffering severe ablation.Furthermore, during the switching process of the movable contact assembly 3 to the off position, the rotation of the movable contact assembly 3 is related to the release position of the grounding pin 201, and not to the speed at which the plug 200 is removed. Therefore, even if the plug 200 is removed slowly, the movable contact assembly 3 can rotate quickly away from the positive wiring assembly 2, thus avoiding the problem of prolonged electric arcing between the movable contact assembly 3 and the positive wiring assembly 2 due to the slow rotation of the movable contact assembly 3 away from the positive wiring assembly 2, caused by the slow removal of the plug 200.

[0043] Referring to FIGS. 5 and 6, in some embodiments, during the process of inserting plug 200 into DC socket 100, the movable contact assembly 3 does not come into contact with terminal segment 21 and the snap-fit ​​sleeve segment 22 when the positive pin 202 comes into contact with the snap-fit ​​sleeve segment 22. It can be understood that, during the process of inserting plug 200 into DC socket 100, the movable contact assembly 3 comes into contact with terminal segment 21 and the snap-fit ​​sleeve segment 22 after the positive pin 202 comes into contact with the snap-fit ​​sleeve segment 22, so that terminal segment 21 is electrically connected to the snap-fit ​​sleeve segment 22. Therefore, plug 200 can be inserted into DC socket 100 as long as DC socket 100 is not plugged in. Petition 870260050328, dated 05 / 26 / 2026, page 16 / 55 13 / 21 energized, thus preventing the generation of an electric arc between plug 200 and DC socket 100.

[0044] Returning to FIG. 2, in some embodiments, a pair of movable contact points 33 is arranged on the conductive member 32. One movable contact point 33 of the pair of movable contact points 33 is coupled to the terminal segment 21, and the other movable contact point 33 of the pair of movable contact points 33 is coupled to the snap-fit ​​sleeve segment 22. Therefore, assuming that the travel of the movable contact assembly 3 is not altered, the electrical clearance of the DC socket 100 is significantly increased, so that the arc between the movable contact assembly 3 and the positive wiring assembly 2 can be quickly extinguished, thus preventing arc generation between the plug 200 and the DC socket 100.

[0045] Returning to FIG. 2, in some embodiments, the movable contact assembly 3 may further include an insulating member 31, and the conductive member 32 may be disposed over the insulating member 31. The insulating member 31 may include a contact surface 311 and a pair of first rotating portions 312. The pair of first rotating portions 312 is rotatably connected to the housing 1, so that the movable contact assembly 3 may rotate relative to the housing 1 toward or away from the positive wiring assembly 2. The contact surface 311 and the pair of movable contact points 33 may be disposed on either side or on the same side of the pair of first rotating portions 312, so that when the contact surface 311 is pressed down by the grounding pin 201, the pair of movable contact points 33 may rotate upward toward the positive wiring assembly 2.

[0046] In some embodiments, the coupling surface 311 can be a contact plane. In other embodiments, the coupling surface 311 can be a curved coupling surface. Petition 870260050328, dated 05 / 26 / 2026, page 17 / 55 14 / 21 ment, which is not limited to that.

[0047] Continuing with reference to FIGS. 7 to 10, in this embodiment, during the process of inserting the grounding pin 201 into the DC socket 100 and pressing the coupling surface 311, the grounding pin 201 drives the movable contact assembly 3 to the activation position, and the reset member 5 is gradually compressed.

[0048] Back to the FIGS. 3 and 4, in some embodiments, the actuating member 41 may include a first body portion 411, a protruding portion 412, a first elastic member 413, a limiting shaft 414, and a pair of second rotating portions 415. The protruding portion 412 may be disposed on one side of the first body portion 411 facing the locking member 43 to interact with the grounding pin 201. The first elastic member 413 is disposed between the housing 1 and one side of the first body portion 411 facing the opposite side to the locking member 43. One end of the first body portion 411 is connected to the transmitting member 42 via the limiting shaft 414, and the pair of second rotating portions 415 is disposed at the other end of the first body portion 411 and is rotatably connected to the housing 1.

[0049] With continuous reference to FIGS. 5 and 7, in this embodiment, when the grounding pin 201 is inserted into the DC socket 100 and actuates the protruding portion 412, the first portion of the body 411 can rotate relative to the housing 1 and gradually compress the first elastic member 413, and the first portion of the body 411 can actuate the transmission member 42 to move.

[0050] Continuing with reference to FIGS. 5 and 7, in some embodiments, when the movable contact assembly 3 is in the off position, the mating surface 311 is spaced from the protruding portion 412, and the mating surface 311 is closer Petition 870260050328, dated 05 / 26 / 2026, p. 18 / 55 15 / 21 of the reset member 5 than the protruding portion 412. Thus, on the one hand, the grounding pin 201 can press the mating surface 311 only after actuating the protruding portion 412. On the other hand, with reference to FIGS. 9 and 11, during the rotation process of the moving contact assembly 3 relative to the housing 1, under the actuation of the reset member 5, the insulating member 31 and the protruding portion 412 are prevented from interfering with each other.

[0051] Referring again to FIGS. 3 and 4, in some embodiments, the transmission member 42 may include a second body portion 421 and a pair of movable portions 422. One end of the second body portion 421 is connected to the first body portion 411 by means of the limiting shaft 414, and the pair of movable portions 422 is disposed at a second end of the second body portion 421. One movable portion 422 of the pair of movable portions 422 may be disposed on one side of the second body portion 421, and the other movable portion 422 of the pair of movable portions 422 may be disposed on an opposite side of the second body portion 421. Correspondingly, the locking member 43 may include a third body portion 431 and a pair of rotating third portions 432. One end of the third body portion 431 attaches to the second body portion 421 and includes holes of Receiving hole 4311. Each of the pairs of movable portions 422 is arranged in a corresponding receiving hole 4311.The pair of rotating third portions 432 can be rotatably connected to housing 1 to allow the locking member 43 to rotate relative to housing 1.

[0052] Referring to FIGS. 5 and 7, in this embodiment, during the process of gradual rotation and compression of the first portion of the body 411 of the first elastic member 413, since the insulating member 31 prevents the rotation of the locking member 43 and the latter cannot rotate, the actuating member 41 and the transmission member 42 Petition 870260050328, dated 05 / 26 / 2026, p. 19 / 55 16 / 21 need to move, so that each of the pairs of movable portions 422 is movable within the corresponding receiving orifice 4311, thus preventing the mechanism from becoming stuck. Furthermore, referring to FIG. 5, the movable portion 422 is located in the left portion of the receiving orifice 4311. Referring to FIG. 7, the movable portion 422 moves to the right portion of the receiving orifice 4311.

[0053] Referring again to FIGS. 3 and 4, in some embodiments, the transmission member 42 may further include a second elastic member 423. One end of the second elastic member 423 may be disposed at the second end of the second body portion 421. The other end of the second elastic member 423 may be disposed at the third body portion 431 of the locking member 43.

[0054] Continuing with reference to FIGS. 4, 5 and 7, in this embodiment, during the process of gradual rotation and compression of the first elastic member 413 by the first body portion 411, the second body portion 421 can move under the drive of the first body portion 411, and, as the third body portion 431 is blocked by the insulating member 31 and cannot rotate, the second body portion 421 gradually compresses the second elastic member 423. It can be understood that the compressed second elastic member 423 can store energy, referring to FIGS. 7 and 9, when the insulating member 31 rotates to a position displaced from the third body portion 431, the second elastic member 423 can release energy and drive the third body portion 431 to rotate towards the driving member 41.

[0055] Furthermore, referring to FIG. 7, the movable portion 422 is located on the right side of the receiving hole 4311. Referring to FIGS. 9 and 11, the movable portion 422 is located on the right side of Petition 870260050328, dated 05 / 26 / 2026, page 20 / 55 17 / 21 left side of the receiving hole 4311. That is, when the moving contact assembly 3 is in the on position, as the moving portion 422 is located on the left side of the receiving hole 4311, the drive member 41 can rotate relative to the housing 1 under the drive of the first elastic member 413 when the drive member 41 is released from the limitation by the grounding pin 201, so that the locking member 43 can rotate under the drive of the drive member 41 and the transmission member 42.

[0056] Referring to FIG. 3, in some embodiments, the third portion of the body 431 may include a first lateral surface 4312, a second lateral surface 4313, and a connecting surface 4314. The first lateral surface 4312 may face the actuating member 41, the second lateral surface 4313 may face the actuating member 41, and the first lateral surface 4312 may be closer to the actuating member 41 than the second lateral surface 4313. The connecting surface 4314 may be located between the first lateral surface 4312 and the second lateral surface 4313.

[0057] Referring to FIGS. 5 and 7, when the movable contact assembly 3 is in the off position, the insulating member 31 contacts the first lateral surface 4312 to block the rotation of the locking member 43. Referring to FIGS. 7 and 9, during the process of inserting the grounding pin 201 into the DC socket 100 and pressing on the coupling surface 311, the insulating member 31 can rotate to the position offset from the first lateral surface 4312. When the insulating member 31 rotates to the position offset from the first lateral surface 4312, the second elastic member 423 can actuate the third body portion 431 towards the actuating member 41 until the connecting surface 4314 contacts the insulating member 31, and the insulating member 31 is locked. Petition 870260050328, dated 05 / 26 / 2026, page 21 / 55 18 / 21 by the locking member 43 and cannot rotate, so that the locking member 43 locks the movable contact assembly 3 in the on position.

[0058] The process of switching the set of moving contacts from the off position to the on position will be described below, with reference to FIGS. 5 to 10.

[0059] With reference to FIGS. 5 and 6, plug 200 is being inserted, grounding pin 201 does not actuate the protruding portion 412 and grounding pin 201 does not press against the contact surface 311. The movable contact assembly 3 is in the off position under the action of the reset member 5. At the same time, the positive pin 202 is in contact with the snap-fit ​​sleeve segment 22 and the negative pin is in contact with the negative wiring component 6.

[0060] Continuing with reference to FIGS. 7 and 8, plug 200 continues to be inserted, grounding pin 201 actuates the protruding portion 412, the first body portion 411 rotates relative to housing 1 and the first elastic member 413 is gradually compressed. At the same time, the first portion of the body 411 can drive the transmission member 42 to move, and since the locking member 43 is blocked by the insulating member 31 and cannot rotate, the movable portion 422 moves from a position on the left portion of the receiving hole 4311 to a position on the right portion of the receiving hole 4311. The second portion of the body 421 gradually compresses the second elastic member 423. Since the grounding pin 201 does not press against the mating surface 311, the movable contact assembly 3 is still in the off position and the reset member 5 is not compressed.

[0061] Continuing with reference to FIGS. 9 and 10, plug 200 continues to be inserted, grounding pin 201 presses against contact surface 311, movable contact assembly 3 rotates to the position Petition 870260050328, dated 05 / 26 / 2026, page 22 / 55 19 / 21 activation and reset member 5 is gradually compressed. If the insulating member 31 of the moving contact assembly 3 rotates to the offset position from the first side surface 4312 of the locking member 43, the second elastic member 423 can release energy and drive the locking member 43 to rotate towards the actuating member 41. When the connecting surface 4314 of the locking member 43 rotates to the position where it contacts the insulating member 31, the locking member 43 locks the moving contact assembly 3 in the on position, and the actuating member 41 is limited by the grounding pin 201 and cannot rotate.

[0062] The process of switching the set of moving contacts from the on position to the off position will be described below with reference to FIGS. 9 to 13.

[0063] With reference to FIGS. 9 and 10, plug 200 is not pulled out, actuating member 41 is limited by grounding pin 201, the first elastic member 413 is compressed, and the movable contact assembly 3 is locked in the on position by the locking member 43. Resetting member 5 is also compressed.

[0064] Referring to FIG. 11, plug 200 is being pulled out, grounding pin 201 is gradually separated from the movable contact assembly 3, but actuating member 41 is still constrained by grounding pin 201 and the first elastic member 413 is still compressed. As locking member 43 does not rotate, the movable contact assembly 3 is still locked in the activation position by locking member 43. Resetting member 5 is still compressed.

[0065] Referring to FIGS. 12 and 13, plug 200 continues to be pulled out, actuating member 41 is released from the limitation of grounding pin 201, the first elastic member 413 releases energy and drives actuating member 41 to rotate relative to the housing Petition 870260050328, dated 05 / 26 / 2026, page 23 / 55 20 / 21 ment 1. The locking member 43 can rotate to the release position of the moving contact assembly 3 under the actuation of the actuating member 41 and the transmission member 42. The reset member 5 releases power and drives the moving contact assembly 3 to the off position, and the insulating member 31 of the moving contact assembly 3 rotates to the position where it contacts the first lateral surface 4312. When the moving contact assembly 3 is in the off position, the positive pin 202 is not separated from the snap-fit ​​sleeve segment 22, and the negative pin is not separated from the negative wiring assembly 6.

[0066] According to embodiments of the present invention, when the movable contact assembly is in the activation position, the movable contact assembly is locked by the locking member and cannot rotate, so that, before the locking member rotates to the release position of the movable contact assembly, the movable contact assembly is always locked in the activation position by the locking member, and the terminal segment and the interlocking sleeve segment are driven to each other through the driving member.During the plug removal process, when the actuating member is released from the grounding pin's limitation, the locking member is adapted to rotate to the release position of the moving contact assembly under the actuation of the actuating member, and the resetting member can release power and quickly actuate the moving contact assembly to rotate away from the positive wiring assembly, thus rapidly extinguishing an arc between the moving contact assembly and the positive wiring assembly. Furthermore, since the arc between the moving contact assembly and the positive wiring assembly can be quickly extinguished, and the moving contact assembly is separated from the positive wiring assembly before the positive pin is disengaged from the plug sleeve segment, an arc between the plug and the... Petition 870260050328, dated 05 / 26 / 2026, page 24 / 55 A 21 / 21 DC outlet can be further prevented from being generated.

[0067] The arc-extinguishing design according to the embodiments of the present invention can be applied to various DC outlets. 100 to solve, at least partially, the problems described above. It should be understood that the arc-extinguishing design, according to the embodiments of the present invention, can also be applied to other electrical components, which is not limited to the embodiments of the present invention.

[0068] The embodiments of the present invention have been described above, and the above description is illustrative, not exhaustive, and is not limited to the embodiments described. Many modifications and variations will be apparent to those with common knowledge of the art, without departing from the scope and spirit of the embodiments illustrated. The selection of terms used herein is intended to better explain the principles of the embodiments, the practical application or technical improvements in the market, or to enable others with common knowledge of the art to understand the embodiments described herein. Petition 870260050328, dated 05 / 26 / 2026, page 25 / 55

Claims

1 / 5 CLAIMS 1. DC socket, characterized in that it comprises: a housing; a positive wiring assembly disposed in the housing and including a terminal segment and a connecting sleeve segment separated from each other; a movable contact assembly disposed in the housing and rotating relative to the housing to alternate between a connected position and a disconnected position, the movable contact assembly being connected to the terminal segment and the connecting sleeve segment in the connected position, the movable contact assembly being separated from the terminal segment and the connecting sleeve segment in the disconnected position; a switch assembly disposed in the housing and comprising an actuating member, a locking member and a transmission member connected between the actuating member and the locking member; and a reset member disposed between the housing and the movable contact assembly, wherein when a plug is inserted into the DC socket,The actuating member is activated and limited by a grounding pin of the plug, the reset member is compressed and the moving contact assembly is locked in the on position by the locking member, and wherein during a process of removing the plug from the DC socket, the actuating member is adapted to rotate relative to the housing when released from being limited by the grounding pin, the locking member is adapted to rotate to a position to release the moving contact assembly under the actuation of the actuating member, the reset member drives the moving contact assembly to the off position, and the moving contact assembly is separated from the terminal segment and the snap-fit ​​sleeve segment before a positive pin of the plug is disengaged from the snap-fit ​​sleeve segment, so that an electrical connection between the terminal segment and the snap-fit ​​sleeve segment is severed.

2. DC socket, according to claim 1, characterized in that during a process of inserting the plug into the DC socket, the moving contact assembly comes into contact with the terminal segment and the fitting sleeve segment after the positive pin of the plug comes into contact with the fitting sleeve segment, so that the terminal segment is electrically connected to the fitting sleeve segment.

3. DC socket, according to claim 1, characterized in that the movable contact assembly comprises a conductive member provided with a pair of movable contact points, one movable contact point of the pair of movable contact points is coupled to the terminal segment, and the other movable contact point of the pair of movable contact points is coupled to the fitting sleeve segment.

4. DC socket, according to claim 3, characterized in that the moving contact assembly further comprises an insulating member connected to the conductive member, the insulating member comprising a coupling surface and a pair of first rotating portions, and the pair of first rotating portions is rotatably connected to the housing, and wherein during the process of inserting the grounding pin into the DC socket and pressing the coupling surface, the grounding pin drives the moving contact assembly to the on position, and the reset member is gradually compressed.

5. DC socket, according to claim 4, characterized in that the actuating member comprises a first body portion, a protruding portion, a first elastic member, a limiting shaft and a pair of second rotating portions, the protruding portion being disposed on one side of the first body portion facing the locking member, the first elastic member being disposed between the housing and one side of the first body portion facing away from the locking member, one end of the first body portion being connected to the transmission member via the limiting shaft, and the pair of second rotating portions being disposed at the other end of the first body portion and being rotatably connected to the housing, and wherein when the grounding pin is inserted into the DC socket and actuates the protruding portion, the first body portion is adapted to rotate relative to the housing and gradually compress the first elastic portion,And the first portion of the body is adapted to power the transmission portion in order to move.

6. DC socket, according to claim 5, characterized in that the coupling surface is spaced from the protruding portion, and the coupling surface is closer to the reset member than the protruding portion, and wherein the grounding pin presses the coupling surface after actuating the protruding portion.

7. CC socket, according to claim 5, characterized in that the transmission member comprises a second body portion and a pair of movable portions, a first end of the second body portion is connected to the first body portion through the limiting shaft, the pair of movable portions is disposed at a second end of the second portion. Petition 870250070140, dated 06 / 08 / 2025, page 1.31 / 82 4 / 5 of the body, the locking member comprises a third body portion, one end of the third body portion attaches to the second body portion and comprises a pair of receiving holes, and each of the pairs of movable portions is disposed in a corresponding receiving hole, and wherein during a process of rotation of the first body portion and gradual compression of the first elastic member, the insulating member blocks the rotation of the locking member, and each of the pairs of movable portions is adapted to move within the corresponding receiving hole.

8. A DC socket, according to claim 7, characterized in that the transmission member further comprises a second elastic member, one end of the second elastic member is disposed at the second end of the second body portion, and the other end of the second elastic member is disposed at the locking member, and in that during the process of rotation and gradual compression of the first elastic member by the first body portion, the second body portion is adapted to move under the drive of the first body portion and gradually compress the second elastic member.

9. DC socket, according to claim 8, characterized in that the third portion of the body comprises a first lateral surface facing the actuating member, wherein when the moving contact assembly is in the off position, the insulating member comes into contact with the first lateral surface to block the rotation of the locking member, and wherein during the process of inserting the grounding pin into the DC socket and pressing on the coupling surface, the insulating member is adapted to rotate to a position offset from the first lateral surface.

10. DC socket, according to claim 9, characterized in that the third portion of the body further comprises a second lateral surface facing the actuating member and a connecting surface located between the first lateral surface and the second lateral surface, and the first lateral surface is closer to the actuating member than the second lateral surface, and wherein when the insulating member rotates to the position displaced from the first lateral surface, the second elastic member actuates the third portion of the body towards the actuating member until the connecting surface contacts the insulating member, so that the locking member locks the moving contact assembly in the on position. Petition 870250070140, dated 06 / 08 / 2025, p. 33 / 82

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