Direct current arc extinguishing socket

Abstract

The direct current arc extinguishing socket comprises a position switch, a main spring, an arc extinguishing assembly and at least one group of on-off assemblies. According to the direct current arc extinguishing socket of the utility model, the conductive member of the first on-off assembly is in contact with the second electrode plug pin under the driving of the plug pin so as to conduct the arc extinguishing assembly and the second electrode plug pin, and is separated from the second electrode plug pin under the driving of the main spring so as to disconnect the arc extinguishing assembly and the second electrode plug pin; the conductive part is contacted with the second electrode plug pin before the second electrode plug bush assembly and then is separated from the second electrode plug pin after the second electrode plug bush assembly, and the arc extinguishing assembly is controlled to start arc extinguishing through disconnection of the position switch; therefore, when the second electrode plug pin is in contact with the conductive part and is not in contact with the second electrode plug bush assembly and when the second electrode plug pin is not separated from the conductive part and is separated from the second electrode plug bush assembly, arc extinguishing is carried out, the safety of the socket is improved, and the service life of the socket is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical appliances, specifically to a DC arc-extinguishing socket. Background Technology

[0002] With economic development and social progress, people are placing increasingly higher demands on energy, making the search for new energy sources an urgent issue facing humanity. New energy sources, such as solar power, are gradually entering home and office settings. Since solar cells generate direct current (DC), the gradual promotion of DC plugs and sockets is imperative.

[0003] DC plugs and sockets are the main ways to connect DC electrical equipment to DC power. With the rapid development of DC power supply systems, the application of DC sockets and plugs is becoming increasingly widespread. However, DC plugs and sockets are prone to generating electric arcs during disconnection. Because DC power does not have a self-ignition zero-crossing point like AC power, once a DC arc is generated, it is difficult to extinguish automatically. Furthermore, the temperature of the arc can reach several thousand degrees Celsius, easily causing material erosion. This directly affects the service life of the DC socket and may even cause a fire, resulting in personal injury and property damage. Utility Model Content

[0004] The purpose of this utility model is to overcome at least one defect of the prior art and provide a DC arc extinguishing socket.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A DC arc-extinguishing socket includes a socket for inserting a plug pin and a corresponding socket assembly. The plug pin includes at least one electrode pin, which includes a first electrode pin and a second electrode pin. The socket includes an electrode socket, which includes a first electrode socket corresponding to the first electrode pin and a second electrode socket corresponding to the second electrode pin. The socket assembly includes an electrode socket assembly, which includes a first electrode socket assembly corresponding to the first electrode socket and a second electrode socket assembly corresponding to the second electrode socket. It also includes a position switch, a main spring, an arc-extinguishing assembly, and at least one set of switching components. Each set of switching components includes a conductive element corresponding to a single electrode socket and electrically connected to the arc-extinguishing assembly. One set of switching components is a first switching component, and the conductive element of the first switching component is corresponding to a second electrode socket. During the insertion of the plug into the socket, the switching component can be driven to the on position, so that the conductive element can contact the corresponding electrode pin. During the removal of the plug from the socket, the main spring is used to drive the switching component to the off position, so that the conductive element separates from the corresponding electrode pin.

[0007] During the process of inserting the plug into the socket, the second electrode pin of the plug first contacts the conductive part of the first switching component and the first electrode pin of the plug is connected to the first electrode sleeve component, and then the second electrode pin contacts the second electrode sleeve component; during the process of pulling the plug out of the socket, the second electrode pin first separates from the second electrode sleeve component, and then the second electrode pin separates from the conductive part of the first switching component and the first electrode pin is disconnected from the first electrode sleeve component.

[0008] The position switch is configured to close when or after the second electrode pin contacts the conductive element of the first on / off assembly and before it contacts the second electrode sleeve assembly, and to open when or before the second electrode pin separates from the conductive element of the first on / off assembly and after it separates from the second electrode sleeve assembly.

[0009] The arc extinguishing component is configured to stop arc extinguishing in response to the closing of the position switch and to start arc extinguishing in response to the opening of the position switch.

[0010] Optionally, the first electrode socket assembly extends toward the first electrode socket and is provided with a contact piece for contacting the first electrode pin, and the distance from the first electrode socket assembly to the first electrode socket is less than the distance from the second electrode socket assembly to the second electrode socket.

[0011] Optionally, it also includes a set of switching components, which is a second switching component. The conductive part of the second switching component is correspondingly arranged with the first electrode socket and is electrically connected to the first electrode socket component through the arc extinguishing component.

[0012] During the process of inserting the plug into the socket, the second electrode pin of the plug first contacts the conductive element of the first switching component, and the first electrode pin of the plug first contacts the conductive element of the second switching component to conduct the connection between the first electrode pin and the first electrode sleeve assembly. Then, the second electrode pin contacts the second electrode sleeve assembly, and the first electrode pin contacts the first electrode sleeve assembly. During the process of pulling the plug out of the socket, the second electrode pin first separates from the second electrode sleeve assembly, and the first electrode pin first separates from the first electrode sleeve assembly. Then, the second electrode pin separates from the conductive element of the first switching component, and the first electrode pin separates from the conductive element of the second switching component to disconnect the connection between the first electrode pin and the first electrode sleeve assembly.

[0013] Optionally, the distance from the first electrode socket assembly to the first electrode socket is equal to the distance from the second electrode socket assembly to the second electrode socket; the conductive element of the second switching assembly is located between the first electrode socket assembly and the first electrode socket; the conductive element of the first switching assembly is located between the second electrode socket assembly and the second electrode socket, and the distance from the conductive element of the first switching assembly to the second electrode socket is equal to the distance from the second switching assembly to the first electrode socket.

[0014] Optionally, it also includes a first protective door, which is slidably disposed, and when in the first position, the first protective door at least covers a portion of the socket and the corresponding socket assembly;

[0015] When the plug is inserted, it can drive the first protection door to move from the first position to the second position, so that the first protection door drives the switching component to the conducting position;

[0016] The main spring is connected to the first protective door, and the main spring is used to drive the first protective door to reset from the second position to the first position, thereby driving the first protective door to the open / closed position.

[0017] Optionally, each set of switching components further includes a slider and a secondary spring. The first protective door drives the conductive element through the slider. The slider is slidably mounted on the first protective door, and the conductive element is mounted on the slider and moves synchronously with the slider. The secondary spring is located between the slider and the first protective door and is used to provide pressure for the contact between the conductive element and the corresponding electrode pin.

[0018] Optionally, the conductive element is a conductive sheet, which includes a conductive sheet connecting part electrically connected to the arc extinguishing assembly, a conductive sheet fixing part fixedly disposed on the slider, and a conductive sheet contact part for contacting the corresponding electrode pin.

[0019] Optionally, the conductive element is a conductive needle, which includes a conductive needle connecting part electrically connected to the arc extinguishing component, a conductive needle fixing part fixedly mounted on the slider, and a conductive needle contact part for contacting the corresponding electrode pin.

[0020] Optionally, the pin further includes a ground pin, the socket includes a ground socket corresponding to the ground pin, and the sleeve assembly further includes a ground sleeve assembly corresponding to the ground socket;

[0021] The first protective door is provided with a driving ramp that extends into the ground electrode socket. When the ground electrode pin is inserted into the ground electrode socket, the driving ramp pushes the first protective door, causing the first protective door to move from a first position to a second position.

[0022] Optionally, it also includes a push rod assembly corresponding to the on / off component. Each push rod assembly includes a push rod and a return spring connected to the push rod. The push rod can move between a third position and a fourth position. When the electrode pin is inserted into the corresponding electrode socket, it can drive the push rod to move from the third position to the fourth position. The return spring is used to drive the push rod to return from the fourth position to the third position, so that the push rod locks the corresponding on / off component in the off position.

[0023] Optionally, one of the push rod assemblies is a second push rod assembly corresponding to the position switch. The push rod of the second push rod assembly is provided with an actuating part for triggering the position switch. When the push rod of the second push rod assembly is in the fourth position, the actuating part drives the position switch to switch from the open state to the closed state.

[0024] Optionally, the push rod includes a push rod connecting part, a push rod mating part, and a rotatably mounted push rod rotating part. The push rod connecting part is connected to a return spring. The push rod mating part is provided with a push rod inclined surface and a locking part. The push rod inclined surface extends into the corresponding electrode socket. When the electrode pin is inserted into the corresponding electrode socket, the push rod is pushed by the push rod inclined surface, causing the push rod to move from the third position to the fourth position. When the locking part is in the third position, it abuts against the movement path of the on / off assembly from the off position to the on position.

[0025] Optionally, the push rod connecting part and the push rod mating part are located on both sides of the push rod rotating part.

[0026] Optionally, it also includes a pressure plate and an isolation bracket. The isolation bracket and the switching assembly are respectively placed on the pressure plate. The bottom of the isolation bracket is provided with a chamber corresponding to the push rod assembly. The push rod assembly is placed on the pressure plate and located in the chamber. The socket assembly and the arc extinguishing assembly are respectively located below the pressure plate. The position switch is located above the arc extinguishing assembly and to the side of the pressure plate.

[0027] Optionally, it also includes a driving component, which works in conjunction with the position switch. When the electrode pin is inserted into the corresponding electrode socket, it can drive the push rod, causing the driving component to drive the position switch from an open state to a closed state.

[0028] Optionally, the arc extinguishing component includes a PCE board or a PCB board; the position switch is a micro switch.

[0029] The DC arc-extinguishing socket of this utility model has a first on / off component whose conductive element contacts the second electrode pin under the drive of the pin to connect the arc-extinguishing component and the second electrode pin. Under the drive of the main spring, it separates from the second electrode pin to disconnect the arc-extinguishing component and the second electrode pin. During the plug insertion and removal process, the conductive element contacts the second electrode pin before the second electrode socket assembly and then separates from the second electrode pin. The arc-extinguishing component is activated by the position switch. Thus, arc extinguishing is performed when the second electrode pin is in contact with the conductive element but not in contact with the second electrode socket assembly, and when the second electrode pin is not separated from the conductive element but is separated from the second electrode socket assembly, thereby improving the safety and service life of the socket.

[0030] In addition, the push rod assembly controls whether the on / off component can contact the electrode pin to conduct electricity, so as to ensure that the pin is inserted deep enough to be energized and improve the safety of the socket. Attached Figure Description

[0031] Figure 1 This is a cross-sectional view of the DC arc-extinguishing socket in one direction when the position switch of Embodiment 1 of this utility model is not triggered;

[0032] Figure 2 This is a cross-sectional view of the DC arc-extinguishing socket in another direction when the position switch of Embodiment 1 of this utility model is not triggered;

[0033] Figure 3 This is a cross-sectional view of the DC arc-extinguishing socket in one direction when the position switch is triggered according to Embodiment 1 of this utility model;

[0034] Figure 4 This is a cross-sectional view of the DC arc-extinguishing socket in another direction when the position switch of Embodiment 1 of this utility model is triggered;

[0035] Figure 5 This is an assembly diagram of the internal structure of the DC arc extinguishing socket according to an embodiment of this utility model;

[0036] Figure 6 This is an exploded view of the internal structure of the DC arc extinguishing socket according to an embodiment of this utility model;

[0037] Figure 7 This is a utility model Figure 5 A structural diagram with the protective door and isolation bracket removed;

[0038] Figure 8 This is an exploded view of the DC arc-extinguishing socket of Embodiment 2 of this utility model;

[0039] Figure 9 This is a schematic diagram of the DC arc-extinguishing socket of Embodiment 2 of this utility model without the front panel and cover plate;

[0040] Figure 10 This is a schematic diagram of the structure of the first protective door, the switching component, and the plug in Embodiment 2 of this utility model;

[0041] Figure 11 This is a schematic diagram of the internal structure of the DC arc-extinguishing socket according to Embodiment 2 of this utility model;

[0042] Figure 12 This is a schematic diagram of the internal structure of the DC arc-extinguishing socket according to Embodiment 3 of this utility model;

[0043] Figure 13 This is a schematic diagram of the internal structure of the DC arc-extinguishing socket in Embodiment 4 of this utility model;

[0044] Figure 14 This is an exploded view of the first protective door and the switching component in Embodiment 1 of this utility model;

[0045] Figure 15This is an assembly drawing of the first protective door and the switching component according to Embodiment 1 of this utility model;

[0046] Figure 16 This is a schematic diagram of the structure of the first protective door in Embodiment 1 of this utility model;

[0047] Figure 17 This is a schematic diagram of the slider structure of Embodiment 1 or Embodiment 2 of this utility model;

[0048] Figure 18 This is a schematic diagram of the structure of the conductive sheet of this utility model;

[0049] Figure 19 This is an exploded view of the first protective door and the switching component in Embodiment 2 of this utility model;

[0050] Figure 20 This is an assembly diagram of the first protective door and the switching component in Embodiment 2 of this utility model;

[0051] Figure 21 This is an exploded view of the first protective door and the switching component in Embodiment 3 of this utility model;

[0052] Figure 22 This is an assembly drawing of the first protective door and the switching component in Embodiment 3 of this utility model;

[0053] Figure 23 This is an exploded view of the first protective door and the switching component in Embodiment 4 of this utility model;

[0054] Figure 24 This is an assembly diagram of the first protective door and the switching component in Embodiment 4 of this utility model.

[0055] Socket 100; First electrode socket 110; Second electrode socket 120; Ground electrode socket 130; Sleeve assembly 200; First electrode sleeve assembly 210; Contact piece 211; Second electrode sleeve assembly 220; Ground electrode sleeve assembly 230; First protective door 300; Protective door body 310; Drive slope 311; First fixing post 312; Sliding groove 313; Mounting protrusion 320; Sliding protrusion 321; Limiting groove 322; First through hole 32 3; Second perforation 324; Extension 330; Pushing inclined surface 331; Main spring 300a; Arc extinguishing assembly 400; Jumper wire 410; On / off assembly 500; First on / off assembly 500a; Second on / off assembly 500b; Conductive sheet 510; Conductive sheet connecting part 511; Conductive sheet fixing part 512; Conductive sheet contact part 513; Fixing hole 514; Conductive needle 520; Conductive needle connecting part 521; Conductive needle fixing part 522; Conductive needle contact part 52 3; slider 530; receiving groove 531; sliding sidewall 532; slide groove 533; recessed groove 534; fixed boss 535; mounting post 536; third through hole 537; locking port 538; secondary spring 540; base 600; mounting cavity 601; side flange 602; pressure plate 610; second fixed post 611; sliding rib 612; push rod shaft 613; second connecting post 614; cover plate 620; panel 630; isolation bracket 640; second protection Door 700; mating bevel 701; plug 800; first electrode pin 810; second electrode pin 820; ground pin 830; push rod assembly 900; first push rod assembly 900a; second push rod assembly 900b; push rod 910; return spring 920; push rod connecting part 911; push rod mating part 912; push rod rotating part 913; push rod bevel 914; locking part 915; first connecting post 916; contact part 917; position switch S1. Detailed Implementation

[0056] The specific embodiments of the DC arc-extinguishing socket of this utility model are further described below with reference to the accompanying drawings. The DC arc-extinguishing socket of this utility model is not limited to the descriptions in the following embodiments.

[0057] like Figure 8 and Figure 9 As shown, a DC arc-extinguishing socket is used to mate with a plug 800, and typically includes a base 600, a socket body, a pressure plate 610, a cover plate 620, and a panel 630. For example, the base 600 has a mounting cavity 601 with an opening on one side. A side flange 602 extends outward from the opening of the mounting cavity 601 of the base 600. The socket body is installed within the mounting cavity 601 of the base 600, and the pressure plate 610 is inserted into the mounting cavity 601, confining the socket body within it. The cover plate 620 closes the opening of the mounting cavity 601, and the panel 630 covers the side flange 602 and the cover plate 620 of the base 600.

[0058] The DC arc extinguishing socket also includes a socket 100 for inserting a pin of the plug 800. The socket 100 is arranged sequentially through the panel 630, the cover plate 620 and the pressure plate 610. The plug 800 includes at least an electrode pin, which includes a first electrode pin 810 and a second electrode pin 820. The socket 100 includes an electrode socket, which includes a first electrode socket 110 corresponding to the first electrode pin 810 and a second electrode socket 120 corresponding to the second electrode pin 820.

[0059] The socket body includes a socket assembly 200 corresponding to the socket 100. The socket assembly 200 includes an electrode socket assembly, which includes a first electrode socket assembly 210 corresponding to the first electrode socket 110 and a second electrode socket assembly 220 corresponding to the second electrode socket 120. It should be noted that the first electrode socket assembly 210 and the second electrode socket assembly 220 typically each include an electrically connected socket and a terminal block. When the pin of the plug 800 is inserted into the socket 100, it is ultimately inserted into the socket. The terminals of the first electrode socket assembly 210 and the second electrode socket assembly 220 are electrically connected to a DC power supply, forming a power supply circuit for powering the plug 800.

[0060] like Figures 1-6 As shown, the DC arc-extinguishing socket of this embodiment further includes a position switch S1, a main spring 300a, an arc-extinguishing component 400, and at least one set of switching components 500. Each set of switching components 500 includes a conductive element corresponding to a single electrode socket and electrically connected to the arc-extinguishing component 400. One set of switching components 500 is a first switching component 500a, and the conductive element of the first switching component 500a is correspondingly disposed to the second electrode socket 120. During the process of the plug 800 being inserted into the socket 100, the switching component 500 can be driven to the on position, so that the conductive element can contact the corresponding electrode pin. During the process of the plug 800 being pulled out of the socket 100, the main spring 300a is used to drive the switching component 500 to the off position, so that the conductive element is separated from the corresponding electrode pin.

[0061] During the process of plug 800 being inserted into socket 100, firstly, the second electrode pin 820 of plug 800 contacts the conductive element of the first switching component 500a and the first electrode pin 810 of plug 800 is connected to the first electrode sleeve assembly 210, and then the second electrode pin 820 contacts the second electrode sleeve assembly 220; during the process of plug 800 being pulled out of socket 100, firstly, the second electrode pin 820 separates from the second electrode sleeve assembly 220, and then the second electrode pin 820 separates from the conductive element of the first switching component 500a and the first electrode pin 810 is disconnected from the first electrode sleeve assembly 210.

[0062] The position switch S1 is configured to close when or after the second electrode pin 820 contacts the conductive element of the first on / off component 500a and before it contacts the second electrode sleeve assembly 220, and to open when or before the second electrode pin 820 separates from the conductive element of the first on / off component 500a and after it separates from the second electrode sleeve assembly 220; the arc extinguishing component is configured to stop arc extinguishing in response to the closing of the position switch S1 and to start arc extinguishing in response to the opening of the position switch S1.

[0063] It should be noted that the arc-extinguishing assembly 400 is equipped with a DC arc-extinguishing circuit. This DC arc-extinguishing circuit can be an existing one, used to extinguish the arc during the insertion and removal of the plug 800. For example, the DC arc-extinguishing circuit releases electrical energy at the conductive element of the first switching component 500a, thereby eliminating the potential difference between the positive and negative terminals, thus achieving the arc-extinguishing effect. The arc-extinguishing principle of the arc-extinguishing assembly 400 is existing technology and will not be elaborated further here.

[0064] In this embodiment of the DC arc-extinguishing socket, the conductive element of the first switching component 500a contacts the second electrode pin 820 under the drive of the pin to connect the arc-extinguishing component 400 and the second electrode pin 820. Under the drive of the main spring 300a, it separates from the second electrode pin 820 to disconnect the arc-extinguishing component 400 and the second electrode pin 820. During the insertion and removal of the plug 800, the conductive element contacts the second electrode pin 820 before the second electrode sleeve assembly 220 and then separates from the second electrode pin 820. The arc-extinguishing component 400 is activated by the position switch S1 being turned off. Thus, arc extinguishing is performed when the second electrode pin 820 is in contact with the conductive element but not in contact with the second electrode sleeve assembly 220, and when the second electrode pin 820 is not separated from the conductive element but is separated from the second electrode sleeve assembly 220, thereby improving the safety and service life of the socket.

[0065] In this embodiment, the first electrode socket assembly 210 is a positive electrode socket assembly, and the second electrode socket assembly 220 is a negative electrode socket assembly. Of course, in other embodiments, the first electrode socket assembly 210 may be a negative electrode socket assembly, and the second electrode socket assembly 220 may be a positive electrode socket assembly.

[0066] Furthermore, the DC arc-extinguishing socket in this embodiment also includes a driving component. The driving component works in conjunction with the position switch S1. When the electrode pin is inserted into the corresponding electrode socket, it drives the push rod 910, causing the driving component to switch the position switch S1 from an open state to a closed state. The position switch S1 is indirectly driven to open and close by the electrode pin, and the arc-extinguishing assembly 400 can be controlled to extinguish the arc by monitoring the position of the electrode pin.

[0067] Preferably, the arc-extinguishing component 400 includes a PCE board or a PCB board. The arc-extinguishing component 400 is electrically connected to the first electrode socket component 210 and the second electrode socket component 220 to obtain power. The sockets of the first electrode socket component 210 and the second electrode socket component 220 are respectively provided with tongues, which are inserted into the PCE board or the PCB board. The position switch S1 is a micro switch and can be electrically connected to the PCE board or the PCB board by plugging. As another embodiment, the position switch S1 can also be a contact structure, including a cooperating moving contact and a stationary contact. The moving contact is driven to contact the stationary contact by a driving member, so that the position switch S1 is switched to the closed state. When the driving member is separated from the moving contact, the moving contact is separated from the stationary contact under its own elasticity or the action of an elastic element, so that the position switch S1 is switched to the open state.

[0068] like Figure 6-7 The illustrated embodiment one or as shown Figure 8 The illustrated embodiment two or as shown Figure 12 The embodiment shown in Example 3 or as shown in Example 4 Figure 13 In the fourth embodiment shown, the DC arc-extinguishing socket further includes a push rod assembly 900 corresponding to the switching component 500. Each push rod assembly 900 includes a push rod 910 and a return spring 920 connected to the push rod 910. The push rod 910 can move between a third position and a fourth position. When the electrode pin is inserted into the corresponding electrode socket, it can drive the push rod 910 from the third position to the fourth position. The return spring 920 is used to drive the push rod 910 back from the fourth position to the third position, so that the push rod 910 locks the corresponding switching component 500 in the off position. The push rod assembly 900 controls whether the switching component 500 can contact the electrode pin to conduct electricity, so as to ensure that the pin is inserted deep enough to be energized, thereby improving the safety of the socket.

[0069] Furthermore, the DC arc extinguishing socket is provided with two sets of push rod assemblies 900. One set of push rod assemblies 900 is a first push rod assembly 900a corresponding to the first on / off assembly 500a, and the other set of push rod assemblies 900 is a second push rod assembly 900b corresponding to the second on / off assembly 500b and the position switch S1. In this embodiment, the driving component for driving the position switch S1 is the push rod 910 of the second push rod assembly 900b. The push rod 910 of the second push rod assembly 900b is provided with an actuating part 917 for triggering the position switch S1. When the push rod 910 of the second push rod assembly 900b is in the fourth position, the actuating part 917 drives the position switch S1 to switch from the open state to the closed state.

[0070] Specifically, the push rod 910 includes a push rod connecting part 911, a push rod mating part 912, and a rotatably disposed push rod rotating part 913. The push rod connecting part 911 is connected to the return spring 920. The push rod mating part 912 is provided with a push rod inclined surface 914 and a locking part 915. The push rod inclined surface 914 extends into the corresponding electrode insertion hole. When the electrode pin is inserted into the corresponding electrode insertion hole, the push rod 910 is pushed by the push rod inclined surface 914, causing the push rod 910 to move from the third position to the fourth position. When the locking part 915 is in the third position, it abuts against the movement path of the on / off assembly 500 from the off position to the on position. Preferably, the push rod connecting part 911 and the push rod mating part 912 are located on both sides of the push rod rotating part 913.

[0071] For example, the push rod 910 is rotatably mounted on the pressure plate 610, and the pressure plate 610 has a protruding push rod shaft 613. The push rod rotating part 913 is provided with a rotating hole that rotatably cooperates with the push rod shaft 613, and the push rod 910 is rotatably sleeved on the push rod shaft 613 through the rotating hole.

[0072] For example, the end of the push rod connecting part 911 has a protruding first connecting post 916, and the pressure plate 610 has a second connecting post 614 opposite to the first connecting post 916; the return spring 920 is a compression spring, with one end sleeved on the first connecting post 916 and the other end sleeved on the second connecting post 614. Of course, the return spring 920 can also be a tension spring, torsion spring, or leaf spring, etc.

[0073] like Figure 5-6 The illustrated embodiment one or as shown Figure 8-11 The illustrated embodiment two or as shown Figure 12 The embodiment shown in Example 3 or as shown in Example 4 Figure 13 In the fourth embodiment shown, the DC arc-extinguishing socket further includes a first protective door 300, which is slidably disposed. In the first position, the first protective door 300 at least partially blocks the space between the socket 100 and the corresponding socket assembly 200. When the plug 800 is inserted, it can drive the first protective door 300 to move from the first position to the second position, thereby driving the on / off assembly 500 to the on position. The main spring 300a is connected to the first protective door 300, and the main spring 300a is used to drive the first protective door 300 to reset from the second position to the first position, thereby driving the on / off assembly 500 to the off position.

[0074] Furthermore, each set of switching components 500 also includes a slider 530 and a secondary spring 540. The first protective door 300 drives the conductive element through the slider 530. The slider 530 is slidably disposed on the first protective door 300, and the conductive element is disposed on the slider 530 and moves synchronously with the slider 530. The secondary spring 540 is disposed between the slider 530 and the first protective door 300 to provide pressure for the contact between the conductive element and the corresponding electrode pin. The secondary spring 540 disposed between the slider 530 and the first protective door 300 makes the movement of the slider 530 more flexible. The slider 530 can slide synchronously with the first protective door 300, or it can not slide with the first protective door 300 when the electrode pin interferes with the conductive element, so as to ensure the contact pressure between the conductive element and the electrode pin, and the conduction between the conductive element and the electrode pin is more stable and reliable. Of course, as a degraded embodiment, the secondary spring 540 may not be provided.

[0075] like Figure 16 and Figure 17 As shown, the first protective door 300 includes a protective door body 310, which has a protruding mounting protrusion 320 corresponding to the slider 530. The slider 530 is preferably U-shaped and has a receiving groove 531 with two opposing sliding sidewalls 532. The mounting protrusion 320 extends into the receiving groove 531 and is slidably disposed between the two sliding sidewalls 532. The secondary spring 540 is placed within the receiving groove 531, with one end abutting against the slider 530 and the other end abutting against the mounting protrusion 320. The slider 530, the secondary spring 540, and the first protective door 300 are compactly arranged, simplifying the structure of the slider 530 and the first protective door 300 while making them more stable and reliable. The secondary spring 540 is preferably a compression spring, but it can also be a tension spring, torsion spring, or leaf spring, etc.

[0076] Optionally, the sliding sidewall 532 is provided with a sliding groove 533, and the mounting protrusion 320 is provided with a sliding protrusion 321 that slides in cooperation with the sliding groove 533. The sliding groove 533 and the sliding protrusion 321 cooperate to guide and limit the sliding of the slider 530, so that the sliding of the slider 530 is stable and reliable.

[0077] Optionally, the mounting protrusion 320 is provided with limiting grooves 322 on both sides to cooperate with the sliding sidewall 532, and the sliding sidewall 532 is limited within the limiting grooves 322. The cooperation between the sliding sidewall 532 and the limiting grooves 322 guides and limits the sliding of the slider 530, making the sliding of the slider 530 stable and reliable.

[0078] In addition, the slider 530 is provided with a locking port 538 that engages with the locking part 915 of the push rod assembly 900.

[0079] In the DC arc-extinguishing socket of Embodiment 1, such as Figure 14-15 As shown, the conductive component in this embodiment is a conductive sheet 510. The conductive sheet 510 includes a conductive sheet connecting portion 511 electrically connected to the arc-extinguishing assembly 400, a conductive sheet fixing portion 512 fixedly disposed on the slider 530, and a conductive sheet contact portion 513 for contacting the corresponding electrode pin. The arc-extinguishing assembly 400 is electrically connected to the conductive sheet connecting portion 511 via a jumper wire 410. One end of the jumper wire 410 is inserted into or soldered to the arc-extinguishing assembly 400, and the other end is soldered to the conductive sheet connecting portion 511.

[0080] Preferably, the conductive sheet fixing part 512 is a U-shaped structure attached to the outside of the slider 530, and the two sides of the conductive sheet fixing part 512 extend along the moving direction of the slider 530; the conductive sheet contact part 513 is the outer side of the bottom edge of the conductive sheet fixing part 512; one end of the conductive sheet connecting part 511 is connected to one side of the conductive sheet fixing part 512, and the other end of the conductive sheet connecting part 511 is inclined towards the other side of the conductive sheet fixing part 512. The conductive sheet 510 is compactly disposed on the outside of the slider 530, and the slider 530 serves to support the conductive sheet 510 and also to isolate the conductive sheet 510 from the secondary spring 540.

[0081] Optionally, the outer side of the slider 530 is provided with a recess 534 that mates with the conductive sheet fixing part 512. The conductive sheet fixing part 512 is installed in the recess 534 and is snapped and fixed to the slider 530. The conductive sheet fixing part 512 is provided with a fixing hole 514, and the recess 534 is provided with a fixing boss 535 corresponding to the fixing hole 514. The installation structure between the slider 530 and the conductive sheet 510 is simple and convenient to install, and the conductive sheet 510 can be firmly installed on the slider 530.

[0082] In this embodiment, the slider 530 has a mounting post 536 in the receiving groove 531, and the secondary spring 540 is sleeved on the mounting post 536; the mounting protrusion 320 has a first through hole 323 that cooperates with the mounting post 536.

[0083] In the DC arc-extinguishing socket of Embodiment 1, such as Figure 2 and Figure 4As shown, in this embodiment, the conductive structure between the first electrode sleeve assembly 210 and the first electrode pin 810 is provided. The sleeve of the first electrode sleeve assembly 210 extends towards the first electrode socket 110 and is provided with a contact piece 211 for contacting the first electrode pin 810. The distance from the first electrode sleeve assembly 210 to the first electrode socket 110 is less than the distance from the second electrode sleeve assembly 220 to the second electrode socket 120. This embodiment does not require two sets of switching components 500, but only provides a first switching component 500a. By extending the sleeve of the first electrode sleeve assembly 210, the electrode pin first contacts the first electrode sleeve assembly 210 and then contacts the second electrode sleeve assembly 220 when inserted, and first disengages from the second electrode sleeve assembly 220 and then disengages from the first electrode sleeve assembly 210 when pulled out. The structure is simple and easy to implement.

[0084] like Figure 8-10 The DC arc-extinguishing socket of Embodiment 2 shown is mainly different from Embodiment 1 in that the conduction structure between the first electrode socket assembly 210 and the first electrode pin 810 is different. This embodiment is provided with two sets of switching components 500, one set of switching components 500 is the first switching component 500a, and the other set of switching components 500 is the second switching component 500b. The conductive part of the second switching component 500b is correspondingly arranged with the first electrode socket 110, and is electrically connected to the first electrode socket assembly 210 through the arc-extinguishing component 400.

[0085] During the process of plug 800 being inserted into socket 100, the second electrode pin 820 of plug 800 first contacts the conductive element of the first switching component 500a, and the first electrode pin 810 of plug 800 contacts the conductive element of the second switching component 500b to conduct the first electrode pin 810 and the first electrode sleeve assembly 210. Then the second electrode pin 820 contacts the second electrode sleeve assembly 220, and the first electrode pin 810 contacts the first electrode sleeve assembly 210. During the process of plug 800 being pulled out of socket 100, the second electrode pin 820 separates from the second electrode sleeve assembly 220, and the first electrode pin 810 separates from the first electrode sleeve assembly 210. Then the second electrode pin 820 separates from the conductive element of the first switching component 500a, and the first electrode pin 810 separates from the conductive element of the second switching component 500b to disconnect the first electrode pin 810 and the first electrode sleeve assembly 210. The DC arc-extinguishing socket structure in this embodiment is more symmetrical and regular.

[0086] Specifically, the distance from the first electrode socket assembly 210 to the first electrode socket 110 is equal to the distance from the second electrode socket assembly 220 to the second electrode socket 120; the conductive element of the second switching assembly 500b is located between the first electrode socket assembly 210 and the first electrode socket 110; the conductive element of the first switching assembly 500a is located between the second electrode socket assembly 220 and the second electrode socket 120, and the distance from the conductive element of the first switching assembly 500a to the second electrode socket 120 is equal to the distance from the second switching assembly 500b to the first electrode socket 110.

[0087] As shown in the figure Figure 12 The DC arc-extinguishing socket shown in Embodiment 3 differs from Embodiment 2 mainly in the structure of the switching component 500, primarily in the structure of the conductive parts. Figure 21 and Figure 22 As shown, the conductive component in this embodiment is a conductive needle 520. The conductive needle 520 includes a conductive needle connecting part 521 electrically connected to the arc extinguishing component 400, a conductive needle fixing part 522 fixedly disposed on the slider 530, and a conductive needle contact part 523 for contacting the electrode pin.

[0088] In this embodiment, the arc extinguishing component 400 is electrically connected to the conductive needle connection part 521 via a jumper wire 410. One end of the jumper wire 410 is inserted into or soldered to the arc extinguishing component 400, and the other end is soldered to the conductive needle connection part 521. The conductive needle connection part 521 is preferably a flat structure with at least one plane to facilitate soldering.

[0089] Preferably, the conductive needle connecting part 521, the conductive needle fixing part 522, and the conductive needle contact part 523 are sequentially connected along the moving direction of the slider 530. The conductive needle fixing part 522 at least penetrates the slider 530, and the slider 530 is provided with a third through hole 537 that mates with the conductive needle fixing part 522. The conductive needle fixing part 522 also penetrates the mounting protrusion 320 of the first protective door 300, and the mounting protrusion 320 is provided with a second through hole 324 that mates with the conductive needle fixing part 522. In this embodiment, the secondary spring 540 is sleeved on the conductive needle fixing part 522. The conductive needle 520 is disposed through the slider 530 so that the conductive needle 520 can also play a guiding and supporting role for the secondary spring 540.

[0090] like Figure 13 , Figure 23 and Figure 24 The DC arc extinguishing socket of Embodiment 4 shown is different from Embodiment 1 mainly in the structure of the switching component 500, and mainly in the structure of the conductive component. The conductive component in this embodiment is the conductive pin 520, which is the same as that in Embodiment 3, and will not be described again here.

[0091] like Figure 10 As shown, the plug 800 also includes a ground pin 830, and the ground pin 830, the first electrode pin 810, and the second electrode pin 820 are generally arranged in a triangular pattern. Correspondingly, the socket 100 of the DC arc-extinguishing socket also includes a ground socket 130, and the ground socket 130, the first electrode socket 110, and the second electrode socket 120 are arranged in a triangular pattern. The socket assembly 200 also includes a ground socket assembly 230 corresponding to the ground socket 130. In some embodiments, the distance from the ground socket assembly 230 to the ground socket 130 is less than the distance from the electrode socket assembly to the corresponding electrode socket.

[0092] like Figure 8 and Figure 16 As shown, the protective door body 310 is provided with a driving ramp 311, which extends into the ground electrode socket 130. When the ground electrode pin 830 is inserted into the ground electrode socket 130, it pushes the first protective door 300 through the driving ramp 311, causing the first protective door 300 to move from a first position to a second position. First, the ground electrode pin 830 pushes the first protective door 300 to the second position, causing the secondary spring 540 to compress and store energy. Then, the electrode pin pushes the push rod assembly 900 to release the lock on the switching assembly 500, thereby releasing the energy of the secondary spring 540 to drive the switching assembly 500 to the conductive position, that is, the conductive part of the switching assembly 500 contacts the electrode pin. The first protective door 300 is driven by the ground electrode pin 830, which can drive the switching assembly 500 to move synchronously towards the electrode socket, so that the switching assembly 500 can be set more reasonably.

[0093] Of course, as another embodiment, the socket and plug 800 can also be two-pole, that is, the ground electrode pin 830 is not provided, and the first protection door 300 is driven by the first electrode pin 810 or the second electrode pin 820.

[0094] like Figure 8 As shown, the first protective door 300 is slidably mounted on the pressure plate 610 and located between the pressure plate 610 and the cover plate 620. The pressure plate 610 is provided with a sliding rib 612, and the bottom of the protective door body 310 is provided with a sliding groove 313 that slides with the sliding rib 612. The main spring 300a is preferably a compression spring, with one end fixed and the other end connected to the first protective door 300. The side wall of the protective door body 310 is provided with a first fixing post 312 for fixing the main spring 300a, and the pressure plate 610 is provided with a second fixing post 611 opposite to the first fixing post 312. One end of the main spring 300a is sleeved on the first fixing post 312, and the other end is sleeved on the second fixing post 611. Of course, the main spring 300a can also be a tension spring, a torsion spring, or a leaf spring, etc.

[0095] like Figure 5or Figure 11 or Figure 12 or Figure 13 As shown, the DC arc extinguishing socket may also be provided with an isolation bracket 640. The isolation bracket 640 is located between the pressure plate 610 and the cover plate 620. The first electrode socket 110 and the second electrode socket 120 are respectively provided through the isolation bracket 640. The isolation bracket 640 plays a role in electrically isolating the positive and negative poles of the socket, thereby improving the electrical safety of the socket.

[0096] Preferably, the isolation bracket 640 and the switching component 500 are respectively placed on the pressure plate 610. The bottom of the isolation bracket 640 has a chamber corresponding to the push rod assembly 900. The push rod assembly 900 is placed on the pressure plate 610 and located within the chamber. The socket assembly 200 and the arc-extinguishing assembly 400 are respectively located below the pressure plate 610. The position switch S1 is located above the arc-extinguishing assembly 400 and to the side of the pressure plate 610. The DC arc-extinguishing socket has a compact internal structure and a reasonable layout.

[0097] like Figure 5 or Figure 11 or Figure 12 or Figure 13 As shown, the DC arc-extinguishing socket in this embodiment also includes a second protective door 700. The second protective door 700 is slidably disposed on the isolation bracket 640 and is used to block the space between the first electrode socket 110 on the isolation bracket 640 and the first electrode socket 110 on the cover plate 620. The protective door body 310 extends to provide an extension portion 330 located between the isolation bracket 640 and the cover plate 620. The extension portion 330 is preferably a T-shaped structure composed of a transverse portion and a longitudinal portion, wherein the longitudinal portion connects the transverse portion and the protective door body 310, and the length direction of the longitudinal portion is arranged along the moving direction of the first protective door 300. One end of the transverse portion is used to block the space between the second electrode socket 120 on the isolation bracket 640 and the second electrode socket 120 on the cover plate 620. The other end of the transverse portion is provided with a pushing inclined surface 331. The second protective door 700 is provided with a mating inclined surface 701 that cooperates with the pushing inclined surface 331.

[0098] In the operation of the DC arc-extinguishing socket in this embodiment, during the insertion of the plug 800 into the socket socket 100, the first protective door 300 moves to a second position due to the interference between the driving inclined surface 311 and the ground electrode pin 830 of the plug 800, so as to make way for the ground electrode socket 130 on the pressure plate 610 and the second electrode socket 120 on the isolation bracket 640, allowing the ground electrode pin 830 and the second electrode pin 820 to be inserted into place; at the same time, the second protective door 700 moves due to the interference with the first electrode pin 810 of the plug 800, so as to make way for the first electrode socket 110 on the isolation bracket 640, allowing the first electrode pin 810 to be inserted into place.

[0099] During the process of the plug 800 being pulled out of the socket 100, when the interference between the first protective door 300 and the ground pin 830 is eliminated, the first protective door 300 is reset to the first position under the action of the main spring 300a; at the same time, the interference between the second protective door 700 and the first electrode pin 810 of the plug 800 is eliminated, so that the first protective door 300 pushes the inclined surface 331 to act on the mating inclined surface 701 to push the second protective door 700 to reset, that is, the second protective door 700 blocks the first electrode socket 110 on the isolation bracket 640 and the first electrode socket 110 on the cover plate 620.

[0100] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used during use. They are only for ease of description and do not indicate that the device or component referred to must have a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating relative importance.

[0101] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A DC arc-extinguishing socket, comprising a socket (100) for inserting a pin of a plug (800) and a socket assembly (200) corresponding to the socket (100), wherein the pin includes at least an electrode pin, the electrode pin including a first electrode pin (810) and a second electrode pin (820), the socket (100) includes an electrode socket, the electrode socket including a first electrode socket (110) corresponding to the first electrode pin (810) and a second electrode socket (120) corresponding to the second electrode pin (820), the socket assembly (200) includes an electrode socket assembly, the electrode socket assembly including a first electrode socket assembly (210) corresponding to the first electrode socket (110) and a second electrode socket assembly (220) corresponding to the second electrode socket (120); characterized in that: The socket further includes a position switch (S1), a main spring (300a), an arc-extinguishing assembly (400), and at least one set of switching assemblies (500). Each set of switching assemblies (500) includes a conductive element corresponding to a single electrode socket and electrically connected to the arc-extinguishing assembly (400). One set of switching assemblies (500) is a first switching assembly (500a), and the conductive element of the first switching assembly (500a) is corresponding to the second electrode socket (120). During the process of inserting the plug (800) into the socket (100), the switching assembly (500) can be driven to the on position, so that the conductive element can contact the corresponding electrode pin. During the process of pulling the plug (800) out of the socket (100), the main spring (300a) is used to drive the switching assembly (500) to the off position, so that the conductive element is separated from the corresponding electrode pin. During the process of inserting the plug (800) into the socket (100), firstly, the second electrode pin (820) of the plug (800) contacts the conductive part of the first switching component (500a) and the first electrode pin (810) of the plug (800) is connected to the first electrode sleeve assembly (210), and then the second electrode pin (820) contacts the second electrode sleeve assembly (220); during the process of pulling the plug (800) out of the socket (100), firstly, the second electrode pin (820) separates from the second electrode sleeve assembly (220), and then the second electrode pin (820) separates from the conductive part of the first switching component (500a) and the first electrode pin (810) disconnects from the first electrode sleeve assembly (210); The position switch (S1) is configured to close when or after the second electrode pin (820) contacts the conductive element of the first on / off assembly (500a) and before it contacts the second electrode socket assembly (220), and to open when or before the second electrode pin (820) separates from the conductive element of the first on / off assembly (500a) and after it separates from the second electrode socket assembly (220). The arc extinguishing component is configured to stop arc extinguishing in response to the closing of the position switch (S1) and to start arc extinguishing in response to the opening of the position switch (S1).

2. The DC arc-extinguishing socket according to claim 1, characterized in that: The first electrode socket assembly (210) extends toward the first electrode socket (110) and is provided with a contact piece (211) for contacting the first electrode pin (810). The distance from the first electrode socket assembly (210) to the first electrode socket (110) is less than the distance from the second electrode socket assembly (220) to the second electrode socket (120).

3. The DC arc-extinguishing socket according to claim 1, characterized in that: It also includes a set of switching components (500), which is a second switching component (500b). The conductive part of the second switching component (500b) is correspondingly arranged with the first electrode socket (110) and is electrically connected to the first electrode socket assembly (210) through the arc extinguishing component (400). During the process of inserting the plug (800) into the socket (100), firstly, the second electrode pin (820) of the plug (800) contacts the conductive element of the first switching component (500a), and the first electrode pin (810) of the plug (800) contacts the conductive element of the second switching component (500b) to conduct the connection between the first electrode pin (810) and the first electrode socket assembly (210). Then, the second electrode pin (820) contacts the second electrode socket assembly (220), and the first electrode pin (810) contacts the first electrode socket assembly (210). (210) Contact; during the process of the plug (800) being pulled out of the socket (100), the second electrode pin (820) is first separated from the second electrode socket assembly (220) and the first electrode pin (810) is separated from the first electrode socket assembly (210), then the second electrode pin (820) is separated from the conductive element of the first switching assembly (500a) and the first electrode pin (810) is separated from the conductive element of the second switching assembly (500b) to disconnect the first electrode pin (810) from the first electrode socket assembly (210).

4. The DC arc-extinguishing socket according to claim 3, characterized in that: The distance from the first electrode socket assembly (210) to the first electrode socket (110) is equal to the distance from the second electrode socket assembly (220) to the second electrode socket (120); the conductive element of the second switching assembly (500b) is located between the first electrode socket assembly (210) and the first electrode socket (110); the conductive element of the first switching assembly (500a) is located between the second electrode socket assembly (220) and the second electrode socket (120), and the distance from the conductive element of the first switching assembly (500a) to the second electrode socket (120) is equal to the distance from the second switching assembly (500b) to the first electrode socket (110).

5. The DC arc-extinguishing socket according to any one of claims 1-4, characterized in that: It also includes a first protective door (300), which is slidably disposed, and in the first position, the first protective door (300) at least covers a portion of the socket (100) and the corresponding socket assembly (200); When the plug (800) is inserted, it can drive the first protection door (300) to move from the first position to the second position, so that the first protection door (300) drives the switching component (500) to the conducting position; The main spring (300a) is connected to the first protective door (300). The main spring (300a) is used to drive the first protective door (300) to reset from the second position to the first position, thereby driving the on / off assembly (500) to the off position.

6. The DC arc-extinguishing socket according to claim 5, characterized in that: Each set of on / off components (500) also includes a slider (530) and a secondary spring (540). The first protective door (300) drives the conductive element through the slider (530). The slider (530) is slidably disposed on the first protective door (300). The conductive element is disposed on the slider (530) and moves synchronously with the slider (530). The secondary spring (540) is disposed between the slider (530) and the first protective door (300) to provide pressure for the contact between the conductive element and the corresponding electrode pin.

7. The DC arc-extinguishing socket according to claim 6, characterized in that: The conductive element is a conductive sheet (510), which includes a conductive sheet connecting part (511) electrically connected to the arc extinguishing assembly (400), a conductive sheet fixing part (512) fixedly disposed on the slider (530), and a conductive sheet contact part (513) for contacting the corresponding electrode pin.

8. The DC arc-extinguishing socket according to claim 6, characterized in that: The conductive component is a conductive needle (520), which includes a conductive needle connecting part (521) electrically connected to the arc extinguishing assembly (400), a conductive needle fixing part (522) fixedly disposed on the slider (530), and a conductive needle contact part (523) for contacting the corresponding electrode pin.

9. The DC arc-extinguishing socket according to claim 5, characterized in that: The pin also includes a ground pin (830), the socket (100) includes a ground socket (130) corresponding to the ground pin (830), and the sleeve assembly (200) also includes a ground sleeve assembly (230) corresponding to the ground socket (130). The first protective door (300) is provided with a driving ramp (311), which extends into the ground electrode socket (130). When the ground electrode pin (830) is inserted into the ground electrode socket (130), the first protective door (300) is pushed by the driving ramp (311) to move the first protective door (300) from the first position to the second position.

10. The DC arc-extinguishing socket according to claim 1, characterized in that: It also includes push rod assemblies (900) corresponding to the on / off assembly (500). Each push rod assembly (900) includes a push rod (910) and a return spring (920) connected to the push rod (910). The push rod (910) can move between a third position and a fourth position. When the electrode pin is inserted into the corresponding electrode socket, it can drive the push rod (910) to move from the third position to the fourth position. The return spring (920) is used to drive the push rod (910) to return from the fourth position to the third position, so that the push rod (910) locks the corresponding on / off assembly (500) in the off position.

11. The DC arc-extinguishing socket according to claim 10, characterized in that: One of the push rod assemblies (900) is a second push rod assembly (900b) corresponding to the position switch (S1). The push rod (910) of the second push rod assembly (900b) is provided with an actuating part (917) for triggering the position switch (S1). When the push rod (910) of the second push rod assembly (900b) is in the fourth position, the actuating part (917) drives the position switch (S1) to switch from the open state to the closed state.

12. The DC arc-extinguishing socket according to claim 10, characterized in that: The push rod (910) includes a push rod connecting part (911), a push rod mating part (912), and a rotatably configured push rod rotating part (913). The push rod connecting part (911) is connected to a return spring (920). The push rod mating part (912) is provided with a push rod inclined surface (914) and a locking part (915). The push rod inclined surface (914) extends into the corresponding electrode socket. When the electrode pin is inserted into the corresponding electrode socket, the push rod (910) is pushed by the push rod inclined surface (914), causing the push rod (910) to move from the third position to the fourth position. When the locking part (915) is in the third position, it abuts against the movement path of the on / off assembly (500) from the off position to the on position.

13. The DC arc-extinguishing socket according to claim 10, characterized in that: The push rod connecting part (911) and the push rod mating part (912) are located on both sides of the push rod rotating part (913).

14. The DC arc-extinguishing socket according to claim 10, characterized in that: It also includes a pressure plate (610) and an isolation bracket (640), wherein the isolation bracket (640) and the on / off assembly (500) are respectively placed on the pressure plate (610), the bottom of the isolation bracket (640) is provided with a chamber corresponding to the push rod assembly (900), the push rod assembly (900) is placed on the pressure plate (610) and located in the chamber, the insert assembly (200) and the arc extinguishing assembly (400) are respectively located below the pressure plate (610), and the position switch (S1) is located above the arc extinguishing assembly (400) and to the side of the pressure plate (610).

15. The DC arc-extinguishing socket according to claim 1, characterized in that: It also includes a driving component, which works in conjunction with the position switch (S1). When the electrode pin is inserted into the corresponding electrode socket, it can drive the push rod (910) so that the driving component drives the position switch (S1) to switch from the open state to the closed state.

16. The DC arc-extinguishing socket according to claim 1, characterized in that: The arc extinguishing component (400) includes a PCE board or a PCB board; the position switch (S1) is a micro switch.

Images