Direct current socket

Abstract

The embodiment of the utility model provides a direct current socket. The direct current socket comprises: a housing; the positive wiring assembly is coupled to the shell and comprises a terminal section and a plug bush section which are separated from each other; the arc extinguishing assembly is coupled at the conductive connection part of the terminal section and the plug bush section and is suitable for generating a magnetic field at least covering the conductive connection part; and the moving contact assembly is coupled on the shell and is suitable for being driven by a ground pole pin of a plug inserted into the direct current socket to rotate relative to the shell, so that the conductive connection between the terminal section and the plug bush section is switched on after the positive pole pin of the plug is inserted into the plug bush section. Therefore, the burning time of the arc can be shortened, and the stability and the reliability of circuit connection can be ensured.

Description

Technical Field

[0001] The exemplary embodiments of the present disclosure generally relate to the field of household appliances, and particularly to a DC socket. Background Art

[0002] A DC socket is an electrical socket used to connect a DC power supply. Since direct current does not have a periodic change, that is, direct current does not have a zero-crossing point, during the process of plugging and unplugging the plug, the arc combustion time between the plug and the socket is long, thus damaging the socket and the devices connected thereto.

[0003] Therefore, how to avoid the generation of an arc between the DC socket and the plug and ensure that the arc can be quickly and effectively extinguished when an arc is generated has become a technical problem to be solved urgently in the current technical field of DC sockets. Summary of the Utility Model

[0004] The purpose of the present disclosure is to provide a DC socket to at least partially solve the above problems and / or other potential problems existing in traditional DC sockets.

[0005] In a first aspect of the present disclosure, a DC socket is provided. The DC socket includes: a housing; a positive terminal wiring assembly coupled to the housing and including a terminal section and a socket section separated from each other; an arc extinguishing assembly coupled to the conductive connection between the terminal section and the socket section and adapted to generate a magnetic field at least covering the conductive connection; and a moving contact assembly coupled to the housing and adapted to be driven by the ground pin of the plug of the DC socket to rotate relative to the housing to establish a conductive connection between the terminal section and the socket section after the positive pin of the plug is inserted into the socket section.

[0006] In an embodiment according to the present disclosure, by providing the terminal section and the socket section of the positive terminal wiring assembly separated from each other, precise control of the conduction and disconnection of the circuit can be achieved. When an arc is generated during the on-off of the circuit, the arc extinguishing assembly generates a uniform magnetic field that can quickly act on the arc, causing it to extinguish in a short time, greatly reducing the damage of the arc to the socket and the connected devices, extending the service life of the socket, and improving the safety of use.

[0007] Meanwhile, the moving contact assembly can be driven by the ground pin of the plug to rotate relative to the housing, ensuring that the conductive connection between the terminal section and the socket section is established only after the positive pin of the plug is coupled to the socket section, ensuring the action timing of the circuit connection, and further ensuring the stability and reliability of the circuit connection. Other benefits will be described in conjunction with the corresponding embodiments below.

[0008] In some embodiments, the DC socket further includes: a reset member disposed between the housing and the moving contact assembly to provide a force for disconnecting the conductive connection between the terminal section and the socket section.

[0009] In some embodiments, the moving contact assembly includes: a conducting member including a pair of moving contacts, and the pair of moving contacts are adapted to be respectively coupled to the terminal segment and the socket segment.

[0010] In some embodiments, the moving contact assembly further includes: an insulating member disposed to be connected to the conducting member, and including: a pair of first rotating portions respectively coupled to the housing; and an abutting portion adapted to be abutted by the grounding pin to drive the moving contact assembly to rotate about a rotation axis connecting the pair of first rotating portions against the force of the reset member.

[0011] In some embodiments, the arc extinguishing assembly includes: a fixing member coupled to the housing; a permanent magnet coupled to the middle of the fixing member and located between the terminal segment and the socket segment; and a pair of magnetic conductors arranged along the extending direction of the fixing member and respectively coupled to both ends of the permanent magnet, so that the magnetic field between the pair of magnetic conductors at least covers the conductive connection portion of the terminal segment and the socket segment.

[0012] In some embodiments, each of the pair of magnetic conductors includes: a terminal magnetic conducting portion arranged such that the magnetic field between the terminal magnetic conducting portions of the pair of magnetic conductors covers the conductive connection portion of the terminal segment; and a socket magnetic conducting portion arranged such that the magnetic field between the socket magnetic conducting portions of the pair of magnetic conductors covers the conductive connection portion of the socket segment.

[0013] In some embodiments, the conducting member is coupled to the insulating member by injection molding, welding or riveting.

[0014] In some embodiments, the DC socket further includes: a negative terminal wiring assembly coupled to the housing, adapted to form an electrical loop with the positive terminal wiring assembly via the negative terminal wiring assembly when the plug is inserted into the DC socket.

[0015] In some embodiments, the DC socket further includes: a grounding terminal wiring assembly coupled to the housing and arranged to be aligned with the abutting portion on the grounding pin, so that the grounding pin drives the moving contact assembly to rotate during the process of inserting into the grounding terminal wiring assembly.

[0016] It should be understood that the content described in this part is not intended to define the key features or important features of the embodiments of the present disclosure, nor to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In combination with the drawings and with reference to the following detailed description, the above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent. In the drawings, the same or similar reference numerals denote the same or similar elements, where:

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

[0019] Figure 2 Shows a schematic structural diagram of a moving contact assembly in a cut-off position according to some embodiments of the present disclosure;

[0020] Figure 3 Shows a schematic structural diagram of a moving contact assembly in a conducting position according to some embodiments of the present disclosure;

[0021] Figure 4 Shows a schematic structural diagram of a moving contact assembly according to some embodiments of the present disclosure;

[0022] Figure 5 and Figure 6 Shows a schematic structural diagram of an arc extinguishing assembly according to some embodiments of the present disclosure;

[0023] Figure 7 Shows a schematic structural diagram of a moving contact assembly in a cut-off position when a DC socket has no plug inserted according to some embodiments of the present disclosure;

[0024] Figure 8 Shows a schematic structural diagram of a moving contact assembly in a cut-off position after a plug is inserted into a DC socket according to some embodiments of the present disclosure; and

[0025] Figure 9 Shows a schematic structural diagram of a moving contact assembly in a conducting position after a plug is inserted into a DC socket according to some embodiments of the present disclosure. Detailed implementation manners

[0026] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not used to limit the protection scope of the present disclosure.

[0027] In the description of the embodiments of the present disclosure, the term "including" and its like should be understood as an open inclusion, that is, "including but not limited to". The term "based on" should be understood as "at least partially based on". The term "one embodiment" or "the embodiment" should be understood as "at least one embodiment". The term "some embodiments" should be understood as "at least some embodiments". There may also be other explicit and implicit definitions below. The terms "first", "second", etc. may refer to different or the same objects. There may also be other explicit and implicit definitions below.

[0028] As briefly mentioned before, there is a problem of arcing between the plug and the socket. In terms of arc extinguishing, there are obvious differences between DC and AC. Due to the zero-crossing characteristic of the AC current, when the switching-off operation is performed, the arc usually extinguishes at the zero-crossing point of the current. For example, in the case of AC 250VAC, 6A, the longest arc burning time is about half a cycle, that is, 10ms.

[0029] However, the DC current has no zero-crossing point, which leads to a significant extension of the arc burning time. For example, under the conditions of DC 250VDC, 5A, the arc burning time can reach 26.8ms.

[0030] If the problem of arc extinguishing between the DC socket and the plug cannot be effectively solved, during each switching-off operation, the long-burning arc will severely wear the contacts between the socket and the plug, and at the same time, the plastic around the contacts will be severely ablated due to high temperature. For example, in some DC-powered electronic devices, due to the failure of the arc to extinguish in time, the contacts in the socket that come into contact with the plug will age rapidly, and the service life of the device will be reduced. Another example is in the power system, a long arc may cause serious safety accidents such as fires.

[0031] To solve or at least partially solve the above problems or other potential problems of the traditional DC socket, the embodiments of the present disclosure provide a DC socket solution. According to the solution of the embodiments of the present disclosure, the DC socket includes a housing, a positive terminal wiring assembly, an arc extinguishing assembly, and a moving contact assembly, realizing efficient and stable circuit connection and disconnection functions.

[0032] Specifically, the positive terminal wiring assembly is coupled to the housing, and the positive terminal wiring assembly includes a terminal section and a socket section that are separated from each other. Further, the arc extinguishing assembly is coupled to the conductive connection between the terminal section and the socket section and is adapted to generate a magnetic field that at least covers the conductive connection. Further, the moving contact assembly is coupled to the housing and is adapted to be driven by the ground pin of the plug of the DC socket to rotate relative to the housing to connect the conductive connection between the terminal section and the socket section after the positive pin of the plug is inserted into the socket section.

[0033] In this way, the arc extinguishing effect can be improved through the arc extinguishing assembly, reducing the damage of the arc to the socket, ensuring the service life and safety of the socket. At the same time, the moving contact assembly can be driven by the ground pin of the plug to rotate relative to the housing, ensuring that the conductive connection is connected after the positive pin of the plug is inserted into the socket section. By precisely controlling the conduction timing of the circuit, the stability and reliability of the electrical connection are improved. Therefore, this DC socket can ensure safe and stable power transmission.

[0034] The following will be combined with Figures 1 to 9To describe an example structure of the DC socket 100. In the following, the concept of the present disclosure will be mainly described in the case of the DC socket 100 with a power socket. It should be understood that the same applies to the case of sockets for other DC devices, and will not be separately described hereinafter. In daily life, sockets such as the DC socket 100 are essential electronic devices for us.

[0035] Specifically, the DC socket 100 includes a housing 110, a positive terminal wiring assembly 120, an arc extinguishing assembly 130, and a moving contact assembly 140.

[0036] Furthermore, the housing 110 can be used as an external support and protection structure for the DC socket 100.

[0037] Furthermore, the positive terminal wiring assembly 120 is coupled to the housing 110 and includes a terminal section 121 and a socket section 122 that are separated from each other. These two parts are separated when the plug is not fully inserted into the DC socket 100, waiting for subsequent connection operations.

[0038] Furthermore, the arc extinguishing assembly 130 includes a fixing member 1301, a permanent magnet 1302, and a pair of magnetic conductors 1303. Specifically, the fixing member 1301 is coupled to the housing 110 to provide a stable installation for the permanent magnet 1302 and the pair of magnetic conductors 1303. Further, the permanent magnet 1302 is arranged in the middle of the fixing member 1301 and is located between the terminal section 121 and the socket section 122. A pair of magnetic conductors 1303 are respectively coupled to both ends of the permanent magnet 1302 along the extending direction A of the fixing member 1301. The magnetic field generated between the pair of magnetic conductors 1303 by the permanent magnet 1302 can cover the conductive connection between the terminal section 121 and the socket section 122. This magnetic field can help quickly extinguish the arc during the on-off process of the current, ensuring the safe use of the DC socket 100. For example, the fixing member 1301 may include an H-shaped housing.

[0039] Furthermore, the moving contact assembly 140 is coupled to the housing 110. The moving contact assembly 140 can be driven by the ground pin 102 of the plug inserted into the DC socket 100 to rotate relative to the housing 110. After the positive pin 101 of the plug is inserted into the socket section 122, the moving contact assembly 140 will connect the conductive connection between the terminal section 121 and the socket section 122.

[0040] During the process of plugging or unplugging the plug into or from the DC socket 100, the moving contact assembly 140 is driven by the ground pin 102 of the plug. Specifically, the moving contact assembly 140 switches between the conducting position where the terminal section 121 and the socket section 122 are connected and the cutting-off position where the terminal section 121 and the socket section 122 are separated. Moreover, the movement of the moving contact assembly 140 has preset timing requirements. After the positive pin 101 of the plug contacts the socket section 122, the terminal section 121 and the socket section 122 will contact; and before the positive pin 101 of the plug disengages from the socket section 122, the terminal section 121 and the socket section 122 have already separated.

[0041] Exemplarily, in practical applications, when the user plugs the plug into the DC socket 100, first the positive pin 101 contacts the socket section 122, and then the ground pin 102 pushes the moving contact assembly 140 to rotate to the conducting position to achieve circuit conduction. When unplugging the plug, the moving contact assembly 140 rotates to the cutting-off position under the action of the reset member 170 (which will be described in detail below), and then the positive pin 101 disengages from the socket section 122 to ensure safe disconnection of the circuit.

[0042] Therefore, by setting the action timing during the process of plugging or unplugging the plug, the DC socket 100 can effectively ensure the safety and reliability of the DC socket 100 during use and reduce the potential hazards brought by the arc.

[0043] As Figure 1 shown, in some embodiments, the DC socket 100 further includes a ground wiring assembly 150 and a negative wiring assembly 160.

[0044] Specifically, the negative wiring assembly 160 is coupled to the housing 110. When the plug is inserted into the DC socket 100, the positive pin 101 of the plug is coupled to the positive wiring assembly 120, and the negative pin of the plug is coupled to the negative wiring assembly 160. With the cooperation of the negative wiring assembly 160 and the positive wiring assembly 120, a complete electrical circuit can be formed.

[0045] Exemplarily, when the plug is inserted into the DC socket 100, the current flows out from the positive wiring assembly 120, passes through the external device, and then returns through the negative wiring assembly 160, thereby realizing the transmission of electrical energy and the normal operation of the device.

[0046] Continuing the description of the ground connection assembly 150. The ground connection assembly 150 is coupled to the housing 110, and the ground connection assembly 150 is arranged to align with the abutting portion 1412 on the ground pin 102 so that the ground pin 102 drives the moving contact assembly 140 to rotate during the insertion of the ground pin 102 into the ground connection assembly 150. Specifically, when the plug is inserted into the DC socket 100, the ground pin 102 can abut against the abutting portion 1412 via the ground connection assembly 150. During this process, the force exerted by the ground pin 102 is sufficient to overcome the force of the reset member 170, thereby driving the moving contact assembly 140 to rotate about the rotation axis connecting a pair of first rotation portions 1411.

[0047] Exemplarily, in practical applications, the ground pin 102 of the plug accurately contacts the ground connection assembly 150, and transmits the force to the abutting portion 1412 through the ground connection assembly 150. This force can be transmitted accurately and effectively, thereby ensuring that the moving contact assembly 140 can rotate along a preset path to achieve circuit conduction.

[0048] The ground connection assembly 150 in the embodiments of the present disclosure can ensure that the force transmission between the ground pin 102 and the abutting portion 1412 is not interfered. Even in frequent plugging and unplugging operations or complex working environments, reliable connection and force transmission effects can be maintained all the time. Further, the ground pin 102 can provide a stable driving force for the movement of the moving contact assembly 140, thereby ensuring the normal operation of the DC socket 100 and the safety of the circuit.

[0049] Therefore, the ground connection assembly 150 can ensure the effective interaction between the ground pin 102 of the plug and the moving contact assembly 140, and ensure the normal operation of the DC socket 100.

[0050] In some embodiments, the DC socket 100 of the present disclosure further includes a reset member 170. The reset member 170 is disposed between the housing 110 and the moving contact assembly 140. For example, in some embodiments, the reset member 170 may include a spring.

[0051] Specifically, the reset member 170 can provide a force to disconnect the conductive connection between the terminal section 121 and the socket section 122. In the normal state, the reset member 170 is in a state of storing energy. It can be understood that the normal state refers to the state where the DC socket 100 has no plug inserted.

[0052] For example, when the plug is pulled out of the socket, the force stored in the reset member 170 will quickly act on the moving contact assembly 140 to ensure that the conductive connection between the terminal section 121 and the socket section 122 is quickly and effectively disconnected.

[0053] Therefore, the reset member 170 provides additional protection for the safe operation of the DC socket 100, enhancing its reliability and stability.

[0054] As Figures 2 to 4 shown, in some embodiments, the moving contact assembly 140 includes a conducting member 142. The conducting member 142 has a pair of moving contacts 1421. Through the rotation of the moving contact assembly 140, the pair of moving contacts 1421 can respectively contact the static contacts 123 on the terminal section 121 and the socket section 122, thereby conducting the terminal section 121 and the socket section 122. It should be noted that the conducting member 142 is a conductive member, and the electrical connection between the terminal section 121 and the socket section 122 can be achieved through this conductive member.

[0055] Exemplarily, during the process of inserting the plug into the DC socket 100, the pair of moving contacts 1421 will accurately contact the static contacts of the terminal section 121 and the socket section 122 along with the movement of the moving contact assembly 140, thereby realizing the conductive connection between the terminal section 121 and the socket section 122. When the plug is pulled out, the moving contacts 1421 will separate from the static contacts of the terminal section 121 and the socket section 122, cutting off the conductive connection.

[0056] It can be understood that the coupling accuracy between the pair of moving contacts 1421 and the static contacts 123 on the terminal section 121 and the socket section 122 directly affects the stability and reliability of the conductive connection of the DC socket 100. Therefore, the pair of moving contacts 1421 and the two static contacts 123 need to have good electrical conductivity and wear resistance to ensure stable performance during frequent plugging and unplugging operations.

[0057] In some embodiments, the moving contact assembly 140 further includes an insulating member 141. The insulating member 141 is arranged to be connected to the conducting member 142.

[0058] Specifically, the insulating member 141 includes a pair of first rotating portions 1411 and an abutting portion 1412. The pair of first rotating portions 1411 are respectively arranged on both sides of the insulating member 141 body and are used to be respectively coupled to the housing 110, providing support and a rotation fulcrum for the rotation of the moving contact assembly 140.

[0059] Furthermore, the abutting portion 1412 is used to be abutted by the ground pin 102. When the plug is inserted into the DC socket 100, the ground pin 102 will abut against the abutting portion 1412, thereby generating a force sufficient to overcome the reset member 170. For example, the abutting portion 1412 can include a planar structure or a curved surface structure, and the embodiments of the present disclosure do not make specific limitations thereto.

[0060] Exemplarily, in actual operation, when the plug is gradually inserted into the socket, the ground pin 102 contacts the abutting portion 1412 and applies pressure. This pressure can overcome the force provided by the reset member 170 that disconnects the conductive connection between the terminal section 121 and the socket section 122, driving the moving contact assembly 140 to rotate about the axis of the rotation axis of a pair of first rotating portions 1411, thereby realizing the electrical connection between the pair of moving contacts 1421 of the conducting member 142 and the static contacts of the terminal section 121 and the socket section 122, and completing the circuit conduction.

[0061] During the process of pulling out the plug, as the abutting force of the ground pin 102 on the abutting portion 1412 decreases until it disappears, the force of the reset member 170 regains the dominance, driving the moving contact assembly 140 to rotate and realizing the disconnection of the conductive connection.

[0062] Thus, it can be ensured that the moving contact assembly 140 can accurately and stably realize the conduction and disconnection of the circuit when the plug is inserted and pulled out.

[0063] In some embodiments, the conducting member 142 of the moving contact assembly 140 and the insulating member 141 can be coupled by injection molding, welding or riveting.

[0064] Specifically, the injection molding process can tightly combine the conducting member 142 and the insulating member 141 to form a solid whole. For example, during the injection molding process, the molten insulating material (such as plastic) can fully connect the conducting member 142 to ensure a firm and seamless connection between the two. The injection molding coupling method can effectively prevent the relative displacement or loosening of the conducting member 142 and the insulating member 141 during use, thus ensuring the normal operation and stability of the moving contact assembly 140, and can realize the batch production of the moving contact assembly 140. Therefore, through the injection molding method, the tight coupling between the conducting member 142 and the insulating member 141 can be realized, improving the reliable operation of the DC socket 100.

[0065] Nearby or alternatively, the conducting member 142 of the moving contact assembly 140 and the insulating member 141 can also be coupled by screwing, referring to Figure 4 . For example, bolts can be used to connect the conducting member 142 and the insulating member 141. In the embodiments of the present disclosure, the connection method between the conducting member 142 and the insulating member 141 is not specifically limited.

[0066] Nearby or alternatively, the conducting member 142 of the moving contact assembly 140 and the insulating member 141 can also be coupled by welding or riveting, and the embodiments of the present disclosure do not specifically limit this.

[0067] Such as Figure 5 and Figure 6As shown, in some embodiments, the magnetic poles of the permanent magnet 1302 in the arc extinguishing assembly 130 are arranged in a preset direction.

[0068] During the frequent plugging and unplugging of the plug, whenever an arc is generated at the conductive connection between the terminal section 121 and the socket section 122, this magnetic pole arrangement can respond quickly, play an arc extinguishing role, and reduce the risk of damage to the internal components of the socket and the connected devices.

[0069] It can be understood that permanent magnet arc blowing is a method used to extinguish arcs in electrical equipment. Permanent magnet arc blowing utilizes the magnetic field generated by the permanent magnet 1302 to affect the movement and development of the arc, thereby achieving rapid arc extinguishing.

[0070] Specifically, the magnetic field generated by the permanent magnet 1302 has a specific direction and intensity. When an arc is generated when the circuit is disconnected, the charged particles in the arc will be affected by the Lorentz force in the magnetic field. Due to the presence of the magnetic field, the charged particles will be pushed and change their movement direction, thereby stretching the arc.

[0071] Exemplarily, in a DC circuit, after the arc is stretched, the length of the arc increases, resulting in an increase in arc resistance, a decrease in current, and thus a reduction in the energy of the arc. At the same time, the magnetic field can also prompt the arc to move quickly, causing it to leave the contact area and reducing the burning and damage to the contacts.

[0072] For another example, the magnetic field generated by the permanent magnet 1302 through coupling a pair of magnetic conductors 1303 can make the arc more dispersed in space, reduce the temperature and density of the arc, and accelerate the cooling and extinguishing speed of the arc.

[0073] In some embodiments, when an arc is generated due to the on-off of the current at the conductive connection between the terminal section 121 and the socket section 122, due to the directional distribution of the magnetic force lines between a pair of magnetic conductors, the arc will move in a direction perpendicular to the magnetic force lines and away from the permanent magnet 1302, thereby accelerating the arc extinguishing speed. Thus, the consistency and stability of the arc extinguishing effect can be ensured. Whether it is in the terminal section 121 or the socket section 122, the arc can be effectively controlled and eliminated under the action of the magnetic force.

[0074] Therefore, the arc extinguishing assembly 130 can ensure reliable arc extinguishing of the DC socket 100, thereby improving the overall performance and safety of the DC socket 100.

[0075] In some embodiments, in the arc extinguishing assembly 130, each of the pair of magnetic conductors 1303 includes a terminal magnetic conduction portion 1304 and a socket magnetic conduction portion 1305. The magnetic field formed between the terminal magnetic conduction portions 1304 of the pair of magnetic conductors 1303 can at least cover the conductive connection portion of the terminal segment 121. The magnetic field between the socket magnetic conduction portions 1305 of the pair of magnetic conductors 1303 can at least cover the conductive connection portion of the socket segment 122.

[0076] Exemplarily, when the current is switched on and off at the conductive connection portion of the terminal segment 121, the magnetic field generated between the terminal magnetic conduction portions 1304 of the pair of magnetic conductors 1303 can effectively constrain and control the possible generated arc, quickly extinguish it, and ensure the stability and safety of the conductive connection of the terminal segment 121.

[0077] Again, when the current is switched on and off at the conductive connection portion of the socket segment 122, the magnetic field generated between the socket magnetic conduction portions 1305 of the pair of magnetic conductors 1303 can effectively constrain and control the possible generated arc, quickly extinguish it, and ensure the stability and safety of the conductive connection of the socket segment 122.

[0078] Therefore, through this magnetic field coverage partition, efficient arc extinguishing can be carried out targeted at different conductive connection portions of the DC socket 100, thereby improving the working reliability and safety of the DC socket 100.

[0079] The arc extinguishing assembly 130 according to the embodiments of the present disclosure can be applied to various DC sockets 100 to at least partially solve the above problems. It should be understood that the arc extinguishing assembly 130 according to the embodiments of the present disclosure can also be applied to other electrical components, and the embodiments of the present disclosure do not limit this.

[0080] As Figures 7 to 9 shown, the concept of the present disclosure will be described below by taking the moving contact assembly 140 that can be switched between a cut-off position and a conduction position as an example. It should be understood that the examples of the cut-off position and the conduction position are only exemplary and are not intended to limit the protection scope of the present disclosure.

[0081] Below will be combined with Figures 7 to 9 to describe the process of the moving contact assembly 140 switching from the cut-off position to the conduction position:

[0082] Refer to Figure 7 , when the plug is not inserted into the DC socket 100, the moving contact assembly 140 is in the cut-off position under the action of the reset member 170, that is, the pair of moving contacts 1421 of the conducting member 142 are separated from the static contacts 123 of the terminal segment 121 and the socket segment 122.

[0083] Refer to Figure 8, when the plug is inserted into the DC socket 100, before the ground pin 102 contacts the abutting portion 1412, the moving contact assembly 140 is still in the cut-off position under the action of the reset member 170. At the same time, the positive pin 101 has contacted the socket section 122, and the negative pin has contacted the negative wiring assembly 160.

[0084] Continue to refer to Figure 9 , when the plug continues to be inserted into the DC socket 100, the ground pin 102 presses the abutting portion 1412, the moving contact assembly 140 rotates towards the conducting position, and the reset member 170 is further compressed. If the moving contact assembly 140 is rotated until the moving contact 1421 of the conducting member 142 contacts the static contacts 123 of the terminal section 121 and the socket section 122, at this time the conducting member 142 conducts the terminal section 121 and the socket section 122.

[0085] The following will describe the process of the moving contact assembly 140 switching from the conducting position to the cut-off position in conjunction with Figures 7 to 9 :

[0086] Refer to Figure 9 , when the plug is not pulled out of the DC socket 100, the ground pin 102 continuously abuts on the abutting portion 1412, the reset member 170 is in a compressed state, and the moving contact assembly 140 is located in the conducting position.

[0087] When the plug starts to be pulled out, under the action of the elastic force of the reset member 170, the moving contact assembly 140 gradually returns to its original position. The moving contact assembly 140 is in the conducting position, and the reset member 170 is still compressed.

[0088] Refer to Figure 8 , when the plug continues to be pulled out, the reset member 170 releases energy and drives the moving contact assembly 140 to the cut-off position, that is, the moving contact 1421 of the conducting member 142 does not contact the static contacts 123 of the terminal section 121 and the socket section 122. When the moving contact assembly 140 is in the cut-off position, the positive pin 101 is not separated from the socket section 122, and the negative pin is not separated from the negative wiring assembly 160. In other words, before the positive pin 101 of the plug is separated from the socket section 122, the moving contact assembly 140 has already been in the cut-off position.

[0089] Refer to Figure 7 , when the plug is completely separated from the DC socket 100, the moving contact assembly 140 is in the cut-off position under the action of the reset member 170, that is, the pair of moving contacts 1421 of the conducting member 142 are completely separated from the static contacts 123 of the terminal section 121 and the socket section 122.

[0090] The various implementations of the present disclosure have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed implementations. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described implementations. The choice of terms used herein is intended to best explain the principles of the implementations, the practical application, or the improvement of technologies in the market, or to enable other ordinary skill in the art to understand the various implementation manners disclosed herein.

Claims

1. A DC socket, characterized in that: include: Housing (110); A positive electrode wiring assembly (120) coupled to the housing (110) and comprising a terminal section (121) and a socket section (122) separated from each other; An arc extinguishing assembly (130) coupled to a conductive connection between the terminal section (121) and the socket section (122), and adapted to generate a magnetic field covering at least the conductive connection; as well as A moving contact assembly (140) is coupled to the housing (110) and is adapted to be driven by a ground pin (102) of a plug inserted into the DC socket to rotate relative to the housing (110) so as to establish a conductive connection between the terminal section (121) and the socket section (122) after the positive pin (101) of the plug is inserted into the socket section (122).

2. The DC socket according to claim 1, characterized in that: Also includes: A reset member (170) is arranged between the housing (110) and the moving contact assembly (140) to provide a force for disconnecting the conductive connection between the terminal section (121) and the socket section (122).

3. The DC socket according to claim 2, characterized in that: The moving contact assembly (140) comprises: The conducting member (142) comprises a pair of movable contacts (1421), wherein the pair of movable contacts (1421) are suitable for being respectively coupled to the terminal section (121) and the plug sleeve section (122).

4. The DC socket according to claim 3, characterized in that: The moving contact assembly (140) further includes: The insulating member (141) is arranged to be connected to the conductive member (142) and comprises: a pair of first rotating parts (1411), respectively coupled to the housing (110); and The abutment portion (1412) is suitable for being abutted by the ground pole pin (102) to overcome the force of the reset member (170) to drive the moving contact assembly (140) to rotate around the rotation axis connecting the pair of first rotating portions (1411).

5. The DC socket according to claim 1, characterized in that: The arc extinguishing assembly (130) comprises: A fixing member (1301) coupled to the housing (110); a permanent magnet (1302), coupled to the middle of the fixing member (1301) and located between the terminal section (121) and the plug section (122); and A pair of magnetic conductors (1303) are arranged along the extension direction (A) of the fixing member (1301) and are respectively coupled to two ends of the permanent magnet (1302), so that the magnetic field between the pair of magnetic conductors (1303) at least covers the conductive connection between the terminal section (121) and the socket section (122).

6. The DC socket according to claim 5, characterized in that: Each of the pair of magnetic conductors (1303) comprises: A terminal magnetic conductive portion (1304) arranged so that the magnetic field between the terminal magnetic conductive portions (1304) of the pair of magnetic conductive bodies (1303) covers the conductive connection of the terminal segment (121); and The plug-in sleeve magnetic conductive portion (1305) is arranged so that the magnetic field between the plug-in sleeve magnetic conductive portions (1305) of the pair of magnetic conductive bodies (1303) covers the conductive connection of the plug-in sleeve section (122).

7. The DC socket according to claim 4, characterized in that: The conducting member (142) is coupled to the insulating member (141) by injection molding, welding or riveting.

8. The DC socket according to any one of claims 1 to 7, characterized in that: Also includes: A negative electrode connection assembly (160) is coupled to the housing (110) so as to form an electrical circuit with the positive electrode connection assembly (120) via the negative electrode connection assembly (160) when a plug is inserted into the DC socket.

9. The DC socket according to claim 4 or 7, characterized in that: Also includes: A ground connection assembly (150) is coupled to the housing (110) and is arranged to be aligned with the abutment portion (1412) on the ground pin (102) so that the ground pin (102) drives the moving contact assembly (140) to rotate during the process of inserting the ground connection assembly (150).

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