Direct current socket

Abstract

The embodiment of the invention provides a direct current socket. The direct current socket comprises a shell; the positive electrode wiring assembly comprises a terminal section and a plug bush section which are separated from each other; the moving contact assembly can rotate relative to the shell so as to be switched between a conduction position connected with the terminal section and the plug bush section and a cut-off position separated from the terminal section and the plug bush section; the switch assembly comprises an actuating piece, a locking piece and a transmission piece; when the plug is inserted into the direct-current socket, the actuating piece is limited by a ground pole pin of the plug, the resetting piece is compressed, the moving contact assembly is locked to the conduction position by the locking piece, and when the plug is pulled out of the direct-current socket, the actuating piece can rotate relative to the shell under the condition that limitation of the actuating piece by the ground pole pin is relieved, and the moving contact assembly is locked to the conduction position by the resetting piece. The locking piece can rotate to the position for unlocking the moving contact assembly, the reset piece drives the moving contact assembly to the cut-off position, and the moving contact assembly is separated from the terminal section and the plug bush section before the positive pole pin of the plug is separated from the plug bush section.

Description

TECHNICAL FIELD

[0001] Embodiments of the present disclosure generally relate to the technical field of electrical equipment, and more particularly, to a direct current socket. BACKGROUND

[0002] A direct current socket (DC socket) is an electrical socket for connecting a direct current power supply. Since the direct current does not have a periodic change, that is, the direct current has no zero-crossing point, the arc burning time between the plug and the socket is long during the process of plugging and unplugging the plug, thereby damaging the plug and the socket.

[0003] Therefore, how to avoid the generation of arc between the plug and the socket is a technical problem that needs to be solved for the current DC socket. SUMMARY

[0004] The purpose of the present disclosure is to provide a DC socket to at least partially solve the above problems.

[0005] In one aspect of the present disclosure, a DC socket is provided, which includes a housing; a positive terminal assembly arranged on the housing and including a terminal segment and a sleeve segment separated from each other; a movable contact assembly arranged on the housing and capable of rotating relative to the housing to switch between a conducting position connected with the terminal segment and the sleeve segment and an off position separated from the terminal segment and the sleeve segment; a switch assembly arranged on the housing and including an actuating piece, a locking piece, and a transmission piece connected between the actuating piece and the locking piece; and a reset piece arranged between the housing and the movable contact assembly, wherein in the case that a plug is inserted into the DC socket, the actuating piece is limited by a ground pin of the plug, the reset piece is compressed, and the movable contact assembly is locked to the conducting position by the locking piece, wherein during the process that the plug is unplugged from the DC socket, the actuating piece can rotate relative to the housing without being limited by the ground pin, the locking piece can rotate to a position that unlocks the movable contact assembly under the driving of the actuating piece, the reset piece drives the movable contact assembly to the off position, and the movable contact assembly is separated from the terminal segment and the sleeve segment before the positive pin of the plug is separated from the sleeve segment.

[0006] According to embodiments of this disclosure, when the moving contact assembly is in the conductive position, it is locked by the locking member and cannot rotate. Therefore, until the locking member rotates to the position where the moving contact assembly is unlocked, the moving contact assembly remains locked in the conductive position, and the terminal segment and the socket segment are connected to each other through the conductive member. During the unplugging process, as soon as the actuator is released from its limit by the ground pin, the locking member can rotate to the position where the moving contact assembly is unlocked under the action of the actuator. The reset member can release energy and quickly drive the moving contact assembly to rotate rapidly away from the positive terminal assembly, thereby quickly extinguishing the arc between the moving contact assembly and the positive terminal assembly. Furthermore, since the arc between the moving contact assembly and the positive terminal assembly can be quickly extinguished, and the moving contact assembly separates from the positive terminal assembly before the positive pin separates from the socket segment, it is possible to further prevent the generation of an arc between the plug and the DC socket.

[0007] In some embodiments, during the insertion of the plug into the DC socket, the moving contact assembly contacts the terminal segment and the socket segment after the positive pin of the plug contacts the socket segment.

[0008] In some embodiments, the moving contact assembly includes a conductor having a pair of moving contacts, one of which engages with the terminal segment, and the other of which engages with the socket segment.

[0009] In some embodiments, the moving contact assembly further includes an insulating member connected to the conductive member. The insulating member includes a mating bevel and a pair of first rotating portions rotatably connected to the housing. The mating bevel and the pair of moving contacts are disposed on both sides of the pair of first rotating portions. During the process of the ground pin being inserted into the DC socket and pressing the mating bevel, the ground pin drives the moving contact assembly toward the conductive position, and the reset member is gradually compressed.

[0010] In some embodiments, the actuator includes a first main body, a protrusion, a first elastic member, a limiting shaft, and a pair of second rotating parts. The protrusion is disposed on the side of the first main body facing the locking member. The first elastic member is disposed between the side of the first main body away from the locking member and the housing. One end of the first main body is connected to the transmission member via the limiting shaft, and the pair of second rotating parts are disposed at the other end of the first main body and rotatably connected to the housing. When the ground pin is inserted into the DC socket and the protrusion is driven, the first main body can rotate relative to the housing and gradually compress the first elastic member, and the first main body can drive the transmission member to move.

[0011] In some embodiments, the mating bevel is spaced apart from the protrusion, and the mating bevel is closer to the reset member than the protrusion, wherein the ground pin presses the mating bevel after driving the protrusion.

[0012] In some embodiments, the transmission member includes a second main body and a pair of movable parts. A first end of the second main body is connected to the first main body via the limiting shaft. The pair of movable parts are disposed on a second end of the second main body. The locking member includes a third main body. One end of the third main body clamps the second main body and includes a pair of receiving holes. Each of the pair of movable parts is disposed in a corresponding receiving hole. During the rotation of the first main body and the gradual compression of the first elastic member, the insulating member blocks the rotation of the locking member, and each of the pair of movable parts is able to move within a corresponding receiving hole.

[0013] In some embodiments, the transmission member further includes a second elastic member, one end of which is disposed on the second end of the second main body, and the other end of which is disposed on the locking member. During the process of the first main body rotating and gradually compressing the first elastic member, the second main body can move under the drive of the first main body and gradually compress the second elastic member.

[0014] In some embodiments, the third body portion includes a first side facing the actuator, wherein when the moving contact assembly is in the cut-off position, the insulating member contacts the first side to prevent the locking member from rotating, wherein during the process of the ground pin being inserted into the DC socket and the mating ramp being pressed, the insulating member can rotate to a position offset from the first side.

[0015] In some embodiments, the third body portion further includes a second side facing the actuator and a connecting surface located between the first side and the second side, wherein the first side is closer to the actuator than the second side, wherein when the insulator rotates to a position offset from the first side, the second elastic member drives the third body portion toward the actuator until the connecting surface contacts the insulator, so that the locking member locks the moving contact assembly to the conducting position.

[0016] It should be understood that the content described in this section is not intended to limit the key or essential features of the embodiments of this disclosure, nor is it intended to restrict the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0017] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein:

[0018] Figure 1 A schematic diagram of the structure of a DC socket according to some embodiments of the present disclosure is shown;

[0019] Figure 2 A schematic diagram of the moving contact assembly and reset member according to some embodiments of the present disclosure is shown;

[0020] Figure 3 A schematic diagram of the structure of a switching assembly according to some embodiments of the present disclosure is shown;

[0021] Figure 4 It shows Figure 3 A cross-sectional view of the switch assembly shown;

[0022] Figures 5 to 10 A schematic diagram illustrating the process of a moving contact assembly switching from a cut-off position to a conduction position according to some embodiments of the present disclosure is shown;

[0023] Figures 11 to 13 A schematic diagram illustrating the process of switching a moving contact assembly to the cut-off position according to some embodiments of the present disclosure is shown.

[0024] Explanation of reference numerals in the attached figures:

[0025] 100 is a DC socket; 200 is a plug; 201 is the ground pin; 202 is the positive pin.

[0026] 1 represents the shell;

[0027] 2 is the positive terminal assembly, 21 is the terminal section, and 22 is the socket section;

[0028] 3 is the moving contact assembly, 31 is the insulating component, 311 is the mating inclined surface, 312 is the first rotating part, 32 is the conductive component, and 33 is the moving contact;

[0029] 4 is a switch assembly, 41 is an actuator, 411 is a first main body, 412 is a protrusion, 413 is a first elastic element, 414 is a limiting shaft, 415 is a second rotating part, 42 is a transmission element, 421 is a second main body, 422 is a moving part, 423 is a second elastic element, 43 is a locking element, 431 is a third main body, 4311 is a receiving hole, 4312 is a first side surface, 4313 is a second side surface, 4314 is a connecting surface, and 432 is a third rotating part.

[0030] 5 is the reset component; 6 is the negative terminal wiring assembly; 7 is the ground terminal wiring assembly. Detailed Implementation

[0031] Preferred embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.

[0032] The term "comprising" and its variations as used herein signify open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "at least partially based on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc., may refer to different or the same objects.

[0033] As described above, because DC sockets lack a zero-crossing point, the arc between the plug and socket burns for a long time during insertion and removal, thus damaging both the plug and socket. Based on this, embodiments of this disclosure provide a DC socket 100 to at least partially solve the above-mentioned problems. In the following, [further details will be provided]. Figures 1 to 13 The principles of this disclosure are described.

[0034] Figure 1 A schematic diagram of the structure of a DC socket 100 according to some embodiments of the present disclosure is shown. Figure 2 A schematic diagram of the moving contact assembly 3 and the reset member 5 according to some embodiments of the present disclosure is shown. Figures 1 to 2 As shown, the DC socket 100 described herein generally includes a housing 1, a positive terminal assembly 2, a moving contact assembly 3, a switch assembly 4, a reset member 5, a negative terminal assembly 6, and a ground terminal assembly 7. The positive terminal assembly 2, the negative terminal assembly 6, and the ground terminal assembly 7 are respectively disposed on the housing 1. A plug 200 can be inserted into or removed from the DC socket 100, wherein the positive terminal pin 202 can mate with the positive terminal assembly 2, the negative terminal pin (not shown) can mate with the negative terminal assembly 6, and the ground terminal pin 201 can mate with the ground terminal assembly 7.

[0035] Continue to refer to Figures 1 to 2 The moving contact assembly 3 is disposed on the housing 1, and the moving contact assembly 3 can rotate relative to the housing 1 toward or away from the positive terminal wiring assembly 2 to switch between the cut-off position and the conduction position.

[0036] Figure 3 A schematic diagram of the structure of a switch assembly 4 according to some embodiments of the present disclosure is shown. Figure 4It shows Figure 3 The cross-sectional view of switch assembly 4 shown. Figures 5 to 10 A schematic diagram illustrating the process of the moving contact assembly 3 switching from a cut-off position to a conducting position according to some embodiments of the present disclosure is shown. Figures 5 to 6 As shown, the positive terminal wiring assembly 2 includes a terminal section 21 and a socket section 22, which are separated from each other.

[0037] Continue to refer to Figure 2 , Figures 5 to 6 The moving contact assembly 3 is in the cut-off position. When the moving contact assembly 3 is in the cut-off position, it is separated from both the terminal section 21 and the socket section 22, therefore there is no electrical continuity between the terminal section 21 and the socket section 22. (Continue to refer to...) Figure 2 , Figures 9 to 10 The moving contact assembly 3 is in the conductive position. When the moving contact assembly 3 is in the conductive position, it is connected to both the terminal segment 21 and the socket segment 22, thus enabling communication between the terminal segment 21 and the socket segment 22. More specifically, the terminal segment 21 and the socket segment 22 are connected to each other via the conductive element 32.

[0038] like Figure 1 , Figure 3 as well as Figure 4 As shown, the switch assembly 4 is mounted on the housing 1. The switch assembly 4 includes an actuator 41, a locking member 43, and a transmission member 42. The transmission member 42 is connected between the actuator 41 and the locking member 43. (Continue referring to...) Figures 1 to 2 The reset member 5 is disposed between the housing 1 and the moving contact assembly 3, and the reset member 5 is capable of deformation under stress.

[0039] Figures 11 to 13 A schematic diagram illustrating the process of switching the moving contact assembly 3 to the cut-off position according to some embodiments of the present disclosure is shown. (Refer to...) Figures 9 to 10 When plug 200 is inserted into DC socket 100, actuator 41 is limited by ground pin 201, reset member 5 is compressed, and moving contact assembly 3 is locked to the conducting position by locking member 43. (Continue to refer to...) Figures 11 to 13 During the process of plug 200 being unplugged from DC socket 100, actuator 41 can rotate relative to housing 1 after being released from the ground pin 201 limit. Locking member 43 can rotate to the position of unlocking moving contact assembly 3 under the action of actuator 41. Reset member 5 drives moving contact assembly 3 to the cut-off position. Continue to refer to Figure 12 The moving contact assembly 3 can be separated from the terminal section 21 and the socket section 22 before the positive pin 202 of the plug 200 is separated from the socket section 22.

[0040] It is understandable that during the process of plug 200 being pulled out of DC socket 100, before the positive pin 202 separates from the socket section 22, the moving contact assembly 3 has already separated from the positive wiring assembly 2. Therefore, plug 200 can be pulled out when DC socket 100 is not energized, thereby avoiding the generation of an electric arc between plug 200 and DC socket 100.

[0041] However, the inventors noted that even when the plug 200 is unplugged when the DC socket 100 is not energized, there is still a risk of arcing between the plug 200 and the DC socket 100. This is because the DC socket 100 has no zero-crossing point, resulting in a long arcing time. Even if the moving contact assembly 3 has separated from the positive wiring assembly 2 before the positive pin 202 separates from the socket section 22, if the arcing time between the moving contact assembly 3 and the positive wiring assembly 2 is long, and the arc is still not extinguished when the positive pin 202 separates from the socket section 22, then there is still a risk of arcing between the plug 200 and the DC socket 100.

[0042] According to the embodiments of this disclosure, when the moving contact assembly 3 is in the conducting position, the moving contact assembly 3 is locked by the locking member 43 and cannot rotate. Therefore, before the locking member 43 rotates to the position to release the locking of the moving contact assembly 3, the moving contact assembly 3 is always locked in the conducting position by the locking member 43, and the terminal segment 21 and the socket segment 22 are connected to each other through the conducting member 32. During the process of unplugging the plug 200, when the actuator 41 is just released from the limit by the ground pin 201, the locking member 43 can rotate to the position to release the locking of the moving contact assembly 3 under the drive of the actuator 41. The reset member 5 can release energy and quickly drive the moving contact assembly 3 to rotate quickly away from the positive terminal assembly 2, thereby quickly extinguishing the arc between the moving contact assembly 3 and the positive terminal assembly 2. Furthermore, since the arc between the moving contact assembly 3 and the positive terminal assembly 2 can be extinguished quickly, and the moving contact assembly 3 separates from the positive terminal assembly 2 before the positive terminal pin 202 of the plug 200 separates from the socket section 22, the generation of an arc between the plug 200 and the DC socket 100 can be further avoided.

[0043] Furthermore, since the arc between the moving contact assembly 3 and the positive terminal assembly 2 can be quickly extinguished, the contacts of the moving contact assembly 3 and the positive terminal assembly 2 are protected from severe wear, and the plastic around the contacts is also protected from severe burning. Additionally, during the switching process from the moving contact assembly 3 to the cut-off position, whether the moving contact assembly 3 rotates depends on whether the ground pin 201 is in the released position, and is independent of the speed at which the plug 200 is pulled out. Therefore, even if the plug 200 is slowly pulled out, the moving contact assembly 3 can quickly rotate away from the positive terminal assembly 2, thus avoiding the problem of a long arcing time between the moving contact assembly 3 and the positive terminal assembly 2.

[0044] refer to Figures 5 to 6 In some embodiments, during the insertion of the plug 200 into the DC socket 100, when the positive pin 202 contacts the socket section 22, the moving contact assembly 3 does not contact the terminal section 21 and the socket section 22. It can be understood that during the insertion of the plug 200 into the DC socket 100, the moving contact assembly 3 contacts the terminal section 21 and the socket section 22 after the positive pin 202 contacts the socket section 22. Therefore, the plug 200 can be inserted into the DC socket 100 when it is not energized, thereby preventing arcing between the plug 200 and the DC socket 100.

[0045] Return to reference Figure 2 In some embodiments, the conductive member 32 is provided with a pair of moving contacts 33. One of the moving contacts 33 mates with the terminal segment 21, and the other moving contact 33 mates with the socket segment 22. Thus, without changing the travel of the moving contact assembly 3, the electrical clearance of the DC socket 100 is multiplied, thereby quickly extinguishing the arc between the moving contact assembly 3 and the positive terminal assembly 2, and thus preventing arcing between the plug 200 and the DC socket 100.

[0046] Return to reference Figure 2 In some embodiments, the moving contact assembly 3 may further include an insulating member 31, and a conductive member 32 may be disposed on the insulating member 31. The insulating member 31 may include a mating bevel 311 and a pair of first rotating portions 312. The pair of first rotating portions 312 may be rotatably connected to the housing 1, so that the moving contact assembly 3 can rotate relative to the housing 1 toward or away from the positive terminal assembly 2. The mating bevel 311 and the pair of moving contacts 33 may be disposed on both sides of the pair of first rotating portions 312, so that when the mating bevel 311 is pressed downward by the ground pin 201, the pair of moving contacts 33 can rotate upward toward the positive terminal assembly 2.

[0047] Continue to refer to Figures 7 to 10In this embodiment, as the ground pin 201 is inserted into the DC socket 100 and the mating ramp 311 is pressed, the ground pin 201 drives the moving contact assembly 3 to the conduction position, and the reset member 5 is gradually compressed.

[0048] Return to reference Figures 3 to 4 In some embodiments, the actuator 41 may include a first body portion 411, a protrusion 412, a first elastic member 413, a limiting shaft 414, and a pair of second rotating portions 415. The protrusion 412 may be disposed on the side of the first body portion 411 facing the locking member 43 for interacting with the ground pin 201. The first elastic member 413 is disposed between the side of the first body portion 411 facing away from the locking member 43 and the housing 1. One end of the first body portion 411 is connected to the transmission member 42 via the limiting shaft 414, and the pair of second rotating portions 415 are disposed at the other end of the first body portion 411 and rotatably connected to the housing 1.

[0049] Continue to refer to Figure 5 and Figure 7 In this embodiment, when the ground pin 201 is inserted into the DC socket 100 and the protrusion 412 is driven, the first main body 411 can rotate relative to the housing 1 and gradually compress the first elastic member 413, and the first main body 411 can drive the transmission member 42 to move.

[0050] Continue to refer to Figure 5 and Figure 7 In some embodiments, when the moving contact assembly 3 is in the cut-off position, the mating ramp 311 is spaced apart from the protrusion 412, and the mating ramp 311 is closer to the reset member 5 than the protrusion 412. Therefore, on the one hand, the ground pin 201 can only press the mating ramp 311 after driving the protrusion 412. On the other hand, referring to... Figure 9 and Figure 11 During the rotation of the moving contact assembly 3 relative to the housing 1 under the drive of the reset member 5, interference between the insulating member 31 and the protrusion 412 is avoided.

[0051] Return to reference Figures 3 to 4In some embodiments, the transmission member 42 may include a second main body portion 421 and a pair of moving portions 422. A first end of the second main body portion 421 is connected to a first main body portion 411 via a limiting shaft 414, and the pair of moving portions 422 are disposed on a second end of the second main body portion 421. One of the moving portions 422 may be disposed on one side of the second main body portion 421, and the other moving portion 422 may be disposed on the opposite side of the second main body portion 421. Correspondingly, the locking member 43 may include a third main body portion 431 and a pair of third rotating portions 432. One end of the third main body portion 431 clamps the second main body portion 421 and includes a receiving hole 4311. Each of the pair of moving portions 422 is disposed within a corresponding receiving hole 4311. The pair of third rotating portions 432 may be rotatably connected to the housing 1 so that the locking member 43 can rotate relative to the housing 1.

[0052] refer to Figure 5 and Figure 7 In this embodiment, during the rotation of the first main body 411 and the gradual compression of the first elastic member 413, the locking member 43 cannot rotate because the insulating member 31 blocks its rotation. However, the actuator 41 and the transmission member 42 need to move, so the paired moving parts 422 can each move within their respective receiving holes 4311, thereby preventing the mechanism from jamming. Further, refer to... Figure 5 The movable part 422 is located on the left side of the receiving hole 4311. (See reference) Figure 7 The moving part 422 moves to the right side of the receiving hole 4311.

[0053] Return to reference Figures 3 to 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 on the second end of the second main body portion 421. The other end of the second elastic member 423 may be disposed on the third main body portion 431 of the locking member 43.

[0054] Continue to refer to Figure 4 , Figure 5 as well as Figure 7 In this embodiment, as the first main body 411 rotates and gradually compresses the first elastic member 413, the second main body 421 can move under the drive of the first main body 411. Since the third main body 431 is blocked by the insulating member 31 and cannot rotate, the second main body 421 gradually compresses the second elastic member 423. It can be understood that the compressed second elastic member 423 can store energy. (Refer to...) Figure 7 and Figure 9 When the insulating member 31 rotates to a position that is offset from the third main body 431, the second elastic member 423 can release energy and drive the third main body 431 to rotate toward the actuator 41.

[0055] Further, refer to Figure 7 The movable part 422 is located on the right side of the receiving hole 4311. (See reference) Figure 9 and Figure 11 The moving part 422 is located on the left side of the receiving hole 4311. That is, when the moving contact assembly 3 is in the conducting position, since the moving part 422 is located on the left side of the receiving hole 4311, when the actuator 41 is released from the ground pin 201 limit, the actuator 41 can rotate relative to the housing 1 under the drive of the first elastic member 413, so that the locking member 43 can rotate under the drive of the actuator 41 and the transmission member 42.

[0056] refer to Figure 3 In some embodiments, the third main body 431 may include a first side surface 4312, a second side surface 4313, and a connecting surface 4314. The first side surface 4312 may face the actuator 41, the second side surface 4313 may face the actuator 41, and the first side surface 4312 is closer to the actuator 41 than the second side surface 4313. The connecting surface 4314 may be located between the first side surface 4312 and the second side surface 4313.

[0057] refer to Figure 5 and Figure 7 When the moving contact assembly 3 is in the cut-off position, the insulating member 31 contacts the first side 4312 to prevent the locking member 43 from rotating. (Reference) Figure 7 and Figure 9 During the process of inserting the ground pin 201 into the DC socket 100 and pressing the mating inclined surface 311, the insulating member 31 can rotate to a position offset from the first side surface 4312. When the insulating member 31 is rotated to the position offset from the first side surface 4312, the second elastic member 423 can drive the third main body 431 toward the actuator 41 until the connecting surface 4314 contacts the insulating member 31. The insulating member 31 is locked by the locking member 43 and cannot rotate, so that the locking member 43 locks the moving contact assembly 3 to the conducting position.

[0058] The following will combine Figures 5 to 10 To describe the process of the moving contact assembly 3 switching from the cut-off position to the conduction position:

[0059] refer to Figures 5 to 6 When the plug 200 is inserted, the ground pin 201 does not drive the protrusion 412, and the ground pin 201 does not press against the mating bevel 311. The moving contact assembly 3 is in the cut-off position under the action of the reset member 5. At the same time, the positive pin 202 has contacted the socket section 22, and the negative pin has contacted the negative wiring assembly 6.

[0060] Continue to refer to Figures 7 to 8As the plug 200 is inserted, the ground pin 201 drives the protrusion 412, causing the first main body 411 to rotate relative to the housing 1, and the first elastic member 413 to be gradually compressed. Simultaneously, the first main body 411 drives the transmission member 42 to move. Since the locking member 43 is blocked by the insulating member 31 and cannot rotate, the moving part 422 moves from the left side of the receiving hole 4311 to the right side. The second main body 421 gradually compresses the second elastic member 423. Because the ground pin 201 does not press against the mating inclined surface 311, the moving contact assembly 3 remains in the cut-off position, and the reset member 5 is not compressed.

[0061] Continue to refer to Figures 9 to 10 Continue inserting the plug 200. The ground pin 201 presses against the inclined surface 311, causing the moving contact assembly 3 to rotate to the conducting position, and the reset member 5 to be gradually compressed. If the insulating member 31 of the moving contact assembly 3 rotates to a position offset from the first side 4312 of the locking member 43, the second elastic member 423 can release energy and drive the locking member 43 to rotate toward the actuator 41. When the connecting surface 4314 of the locking member 43 rotates to a position in contact with the insulating member 31, the locking member 43 locks the moving contact assembly 3 to the conducting position, and the actuator 41 is limited by the ground pin 201 and cannot rotate.

[0062] The following will combine Figures 9 to 13 To describe the process of the moving contact assembly 3 switching from the conducting position to the cutting position:

[0063] refer to Figures 9 to 10 With plug 200 not removed, actuator 41 is limited by ground pin 201, first elastic element 413 is compressed, and moving contact assembly 3 is locked to the conducting position by locking element 43. Reset element 5 is also compressed.

[0064] refer to Figure 11 When plug 200 is unplugged, the ground pin 201 gradually separates from the moving contact assembly 3, but the actuator 41 is still limited by the ground pin 201, and the first elastic member 413 is still compressed. Since the locking member 43 does not rotate, the moving contact assembly 3 is still locked to the conducting position by the locking member 43. The reset member 5 is still compressed.

[0065] refer to Figures 12 to 13Continue unplugging the plug 200. The ground pin 201 releases the limiting actuator 41, and the first elastic member 413 releases energy and drives the actuator 41 to rotate relative to the housing 1. The locking member 43, driven by the actuator 41 and the transmission member 42, can rotate to the position of releasing the locking moving contact assembly 3. The reset member 5 releases energy and drives the moving contact assembly 3 to the cut-off position, and the insulating member 31 of the moving contact assembly 3 rotates to the position of contacting the first side 4312. When the moving contact assembly 3 is in the cut-off position, the positive pin 202 is not separated from the socket section 22, and the negative pin is not separated from the negative wiring assembly 6.

[0066] The arc-extinguishing design according to embodiments of this disclosure can be applied to various DC sockets 100 to at least partially solve the above-mentioned problems. It should be understood that the arc-extinguishing design according to embodiments of this disclosure can also be applied to other electrical components, and the embodiments of this disclosure do not limit this application.

[0067] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, and are not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A DC outlet (100), characterized in that, Comprise: a housing (1); a positive pole wiring assembly (2) arranged on the housing (1) and comprising a terminal segment (21) and a bushing segment (22) separated from each other; a movable contact assembly (3) arranged on the housing (1) and capable of rotating relative to the housing (1) to switch between a conducting position connected with the terminal segment (21) and the bushing segment (22) and an off position separated from the terminal segment (21) and the bushing segment (22); a switch assembly (4) arranged on the housing (1) and comprising an actuating piece (41), a locking piece (43) and a transmission piece (42) connected between the actuating piece (41) and the locking piece (43); and a reset piece (5) arranged between the housing (1) and the movable contact assembly (3), wherein in the case that a plug (200) is inserted into the DC socket (100), the actuating piece (41) is limited by a ground pole pin (201) of the plug (200), the reset piece (5) is compressed, and the movable contact assembly (3) is locked to the conducting position by the locking piece (43), wherein in the process that the plug (200) is pulled out of the DC socket (100), the actuating piece (41) can rotate relative to the housing (1) after being released from being limited by the ground pole pin (201), the locking piece (43) can rotate to a position releasing the movable contact assembly (3) under the driving of the actuating piece (41), the reset piece (5) drives the movable contact assembly (3) to the off position, and the movable contact assembly (3) is separated from the terminal segment (21) and the bushing segment (22) before a positive pole pin (202) of the plug (200) is separated from the bushing segment (22).

2. The DC outlet (100) according to claim 1, characterized in that wherein in the process that the plug (200) is inserted into the DC socket (100), the movable contact assembly (3) contacts the terminal segment (21) and the bushing segment (22) after the positive pole pin (202) of the plug (200) contacts the bushing segment (22).

3. The DC outlet (100) of claim 1, wherein, The movable contact assembly (3) comprises a conducting piece (32) on which a pair of movable contacts (33) are arranged, one of the pair of movable contacts (33) is matched with the terminal segment (21), and the other of the pair of movable contacts (33) is matched with the bushing segment (22).

4. The DC outlet (100) of claim 3, wherein, The movable contact assembly (3) further comprises an insulating piece (31) connected with the conducting piece (32), the insulating piece (31) comprises a matching inclined surface (311) and a pair of first rotating parts (312) rotatably connected to the housing (1), the matching inclined surface (311) and the pair of movable contacts (33) are arranged on both sides of the pair of first rotating parts (312), Wherein during the process that the ground pin (201) is inserted into the DC socket (100) and presses the matching bevel (311), the ground pin (201) drives the movable contact assembly (3) to the conducting position, and the reset member (5) is gradually compressed.

5. The DC outlet (100) of claim 4, wherein, The actuating member (41) comprises a first body part (411), a protruding part (412), a first elastic member (413), a limiting shaft (414) and a pair of second rotating parts (415), the protruding part (412) is arranged on the side of the first body part (411) facing the locking member (43), the first elastic member (413) is arranged between the side of the first body part (411) away from the locking member (43) and the shell (1), one end of the first body part (411) is connected with the transmission member (42) through the limiting shaft (414), and the other end of the first body part (411) is arranged with the pair of second rotating parts (415) and rotationally connected with the shell (1), Wherein in the case that the ground pin (201) is inserted into the DC socket (100) and drives the protruding part (412), the first body part (411) can rotate relative to the shell (1) and gradually compress the first elastic member (413), and the first body part (411) can drive the transmission member (42) to move.

6. The DC outlet (100) of claim 5, wherein, The matching bevel (311) is spaced apart from the protruding part (412), and the matching bevel (311) is closer to the reset member (5) than the protruding part (412), Wherein the ground pin (201) presses the matching bevel (311) after driving the protruding part (412).

7. The DC outlet (100) of claim 5, wherein, The transmission member (42) comprises a second body part (421) and a pair of moving parts (422), a first end of the second body part (421) is connected with the first body part (411) through the limiting shaft (414), the pair of moving parts (422) are arranged on a second end of the second body part (421), the locking member (43) comprises a third body part (431), one end of the third body part (431) clamps the second body part (421) and comprises a pair of accommodating holes (4311), the pair of moving parts (422) are respectively arranged in the corresponding accommodating holes (4311), Wherein during the process that the first body part (411) rotates and gradually compresses the first elastic member (413), the insulating member (31) blocks the rotation of the locking member (43), and the pair of moving parts (422) can respectively move in the corresponding accommodating holes (4311).

8. The DC outlet (100) of claim 7, wherein, The transmission member (42) further comprises a second elastic member (423), one end of the second elastic member (423) is arranged on the second end of the second body part (421), and the other end of the second elastic member (423) is arranged on the locking member (43), Wherein during the rotation and gradual compression of the first elastic member (413) by the first body part (411), the second body part (421) is capable of moving and gradually compressing the second elastic member (423) under the drive of the first body part (411).

9. The DC outlet (100) of claim 8, wherein, The third body part (431) comprises a first side (4312) facing the actuating member (41), Wherein when the movable contact assembly (3) is in the off position, the insulating member (31) is in contact with the first side (4312) to block the rotation of the locking member (43), Wherein during the insertion of the ground pin (201) into the DC socket (100) and the pressing of the matching inclined surface (311), the insulating member (31) is capable of rotating to a position deviated from the first side (4312).

10. The DC outlet (100) of claim 9, wherein, The third body part (431) further comprises a second side (4313) facing the actuating member (41) and a connecting surface (4314) between the first side (4312) and the second side (4313), and the first side (4312) is closer to the actuating member (41) than the second side (4313), Wherein when the insulating member (31) rotates to a position deviated from the first side (4312), the second elastic member (423) drives the third body part (431) towards the actuating member (41) until the connecting surface (4314) is in contact with the insulating member (31), so that the locking member (43) locks the movable contact assembly (3) to the on position.

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