Elastic arc extinguishing assembly and direct current arc extinguishing socket

Abstract

The elastic arc extinguishing assembly comprises an on-off assembly and a first protection door, and the on-off assembly comprises a sliding block and a secondary spring; the sliding block is slidably arranged on the first protection door, and the conductive piece is arranged on the sliding block; the secondary spring is arranged between the sliding block and the first protection door. The direct current arc extinguishing socket comprises an arc extinguishing assembly and an elastic arc extinguishing assembly. According to the elastic arc extinguishing assembly, the slide block can slide synchronously along with the first protection door, and does not slide along with the first protection door when the electrode bolt interferes with the conductive member. According to the direct current arc extinguishing socket, the first protection door can drive the conductive part to conduct the arc extinguishing assembly and the electrode plug pin under the driving of the plug pin, the first protection door can drive the conductive part to disconnect the arc extinguishing assembly and the electrode plug pin under the driving of the main spring, and the electrode plug pin is in contact with the conductive part before the electrode plug bush assembly. And after the electrode plug bush assembly is separated from the conductive piece, the arc extinguishing assembly performs arc extinguishing before the electrode plug pin is in contact with the electrode plug bush assembly and after the electrode plug pin is separated from the electrode plug bush assembly.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical appliances, specifically to an elastic arc-extinguishing component and 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 invention is to overcome at least one defect of the prior art and to provide an elastic arc extinguishing component and a DC arc extinguishing socket.

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

[0006] The resilient arc-extinguishing assembly includes:

[0007] A switching assembly, the switching assembly comprising a slider and a secondary spring;

[0008] The first protective door is driven by a slider to drive a conductive component. The slider is slidably mounted on the first protective door, and the conductive component is mounted on the slider and moves synchronously with the slider.

[0009] The secondary spring is disposed between the slider and the first protective door to provide pressure for the contact between the conductive element and the corresponding electrode pin.

[0010] Optionally, the first protective door includes a protective door body, the protective door body having a protruding mounting protrusion corresponding to the slider; the slider has a receiving groove, the receiving groove having two opposing sliding sidewalls, the mounting protrusion extending into the receiving groove and slidably disposed between the two sliding sidewalls; the secondary spring is placed in the receiving groove, and one end of the secondary spring abuts against the slider, and the other end abuts against the mounting protrusion.

[0011] Optionally, the sliding sidewall is provided with a sliding groove, and the mounting protrusion is provided with a sliding protrusion that slides in cooperation with the sliding groove.

[0012] Optionally, the mounting protrusion is provided with limiting grooves on both sides that cooperate with the sliding sidewall, and the sliding sidewall is limited within the limiting grooves.

[0013] 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 electrode pin.

[0014] Optionally, the conductive sheet fixing part is a U-shaped structure attached to the outside of the slider, and the two sides of the conductive sheet fixing part extend along the moving direction of the slider; the conductive sheet contact part is the outer side of the bottom edge of the conductive sheet fixing part; one end of the conductive sheet connecting part is connected to one side of the conductive sheet fixing part, and the other end of the conductive sheet connecting part is inclined towards the other side of the conductive sheet fixing part.

[0015] Optionally, the outer side of the slider is provided with a recessed groove that cooperates with the conductive sheet fixing part. The conductive sheet fixing part is installed in the recessed groove and is snapped and fixed with the slider. The conductive sheet fixing part is provided with a fixing hole, and the recessed groove is provided with a fixing boss corresponding to the fixing hole.

[0016] Optionally, the conductive element is a conductive needle, which includes a conductive needle connecting part electrically connected to the arc extinguishing assembly, a conductive needle fixing part fixedly mounted on the slider, and a conductive needle contact part for contacting the electrode pin.

[0017] Optionally, the conductive needle connecting part, the conductive needle fixing part, and the conductive needle contact part are connected in sequence along the moving direction of the slider, the conductive needle fixing part penetrates at least through the slider, and the slider is provided with a third through hole that cooperates with the conductive needle fixing part.

[0018] The elastic arc-extinguishing component of this invention, through the secondary spring set between the slider and the first protective door, makes the movement of the slider more flexible. The slider can slide synchronously with the first protective door, or it can not slide with the first protective door when the electrode pin interferes with the conductive component, so as to ensure the contact pressure between the conductive component and the electrode pin, and the conduction between the conductive component and the electrode pin is more stable and reliable.

[0019] A DC arc-extinguishing socket includes a socket for inserting a plug pin and a socket assembly corresponding to the socket. The plug pin includes at least two electrode pins, the socket includes electrode sockets corresponding to the electrode pins, and the socket assembly includes electrode socket assemblies corresponding to the electrode sockets. The socket also includes an arc-extinguishing assembly and any of the resilient arc-extinguishing assemblies described above. The socket further includes a main spring connected to a first protective door of the resilient arc-extinguishing assembly. The first protective door is slidably disposed and, in a first position, at least partially blocks the space between the socket and the corresponding socket assembly. The on / off component of the resilient arc-extinguishing assembly includes a conductive element corresponding to a single electrode socket. The conductive element is electrically connected to the arc-extinguishing assembly, and the conductive element is located between the electrode socket and the corresponding electrode socket assembly in the insertion / removal direction of the electrode pin.

[0020] 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 can drive the switching component to the conducting position, so that the conductive element contacts the corresponding electrode pin, and the arc extinguishing component is connected to at least one electrode pin of the plug through the conductive element; the main spring is used to drive the first protection door to reset from the second position to the first position, so that the first protection door drives the switching component to the disconnected position, so that the conductive element separates from the corresponding electrode pin.

[0021] Optionally, two sets of switching components are provided, with the conductive parts of the two sets of switching components corresponding one-to-one with the two electrode sockets, so that the arc extinguishing component can be connected to the two electrode pins of the plug through the conductive parts of the two sets of switching components respectively.

[0022] Optionally, the pin further includes a ground pin, and the socket includes a ground socket corresponding to the ground pin. The first protective door is provided with a driving slope, which extends into the ground socket. When the ground pin is inserted into the ground socket, the driving slope pushes the first protective door, causing the first protective door to move from a first position to a second position.

[0023] 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.

[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] The DC arc-extinguishing socket of this utility model has a first protective door that, driven by a pin, can cause a conductive element to contact the electrode pin to conduct arc-extinguishing components and electrode pin. Under the drive of a main spring, the first protective door can cause the conductive element to separate from the electrode pin to disconnect the arc-extinguishing components and electrode pin. During the plug insertion and removal process, the electrode pin contacts the conductive element before the electrode sleeve assembly and separates from the conductive element after the electrode sleeve assembly. This allows the arc-extinguishing component to extinguish the arc before the electrode pin contacts the electrode sleeve assembly and after the electrode pin separates from the electrode sleeve assembly, thereby improving the safety and service life of the socket. Attached Figure Description

[0026] Figure 1 This is an exploded view of a DC arc-extinguishing socket according to an embodiment of this utility model;

[0027] Figure 2 This is a schematic diagram of the DC arc extinguishing socket without the panel and cover plate according to an embodiment of the present invention;

[0028] Figure 3 This is a structural schematic diagram of the first protective door, the switching component, and the plug in Embodiment 1 of this utility model;

[0029] Figure 4 This is an exploded view of the first protective door and the switching component in Embodiment 1 of this utility model;

[0030] Figure 5 This is an assembly drawing of the first protective door and the switching component according to Embodiment 1 of this utility model;

[0031] Figure 6 This is a schematic diagram of the structure of the first protective door in Embodiment 1 of this utility model;

[0032] Figure 7 This is a schematic diagram of the slider structure of Embodiment 1 or Embodiment 2 of this utility model;

[0033] Figure 8 This is a schematic diagram of the structure of the conductive sheet of this utility model;

[0034] Figure 9 This is an assembly diagram of the first protective door and the switching component in Embodiment 2 of this utility model;

[0035] Figure 10 This is a schematic diagram of the structure of the first protective door in Embodiment 2 of this utility model;

[0036] Figure 11 This is an assembly drawing of the first protective door and the switching component in Embodiment 3 of this utility model;

[0037] Figure 12 This is a schematic diagram of the structure of the first protective door in Embodiment 3 of this utility model;

[0038] Figure 13 This is an assembly drawing of the first protective door and the switching component in Embodiment 4 of this utility model;

[0039] Figure 14 This is a schematic diagram of the structure of the first protective door in Embodiment 4 of this utility model;

[0040] Figure 15 This is an exploded view of the internal structure of the DC arc-extinguishing socket according to Embodiment 2 of this utility model;

[0041] Figure 16 This is a utility model Figure 15 Assembly drawing with protective doors and isolation brackets removed.

[0042] Socket 100; Positive socket 110; Negative socket 120; Ground socket 130; Socket assembly 200; Positive socket assembly 210; Negative socket assembly 220; Ground socket assembly 230; First protective door 300; Protective door body 310; Drive ramp 311; First fixing post 312; Sliding groove 313; Mounting protrusion 320; Sliding protrusion 321; Limiting groove 322; First through hole 323; Second through hole 324; Extension 330; Push ramp 331; Main spring 300a; Arc extinguishing assembly 400; Jumper wire 410; On / off assembly 500; 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 5 23; slider 530; receiving groove 531; sliding sidewall 532; sliding groove 533; sinker 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 protective door 700; mating slope 701; plug 800; positive pin 810; negative pin 820; ground pin 830; push rod assembly 900; push rod 910; return spring 920; push rod connecting part 911; push rod mating part 912; push rod rotating part 913; push rod slope 914; locking part 915; first connecting post 916. Detailed Implementation

[0043] The following embodiments, in conjunction with the accompanying drawings, further illustrate the specific implementation of the resilient arc-extinguishing component and DC arc-extinguishing socket of this utility model. The resilient arc-extinguishing component and DC arc-extinguishing socket of this utility model are not limited to the descriptions in the following embodiments.

[0044] like Figures 1-3 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.

[0045] The DC arc extinguishing socket also includes a socket 100 for inserting a plug 800. The socket 100 is arranged to pass through the panel 630, the cover plate 620 and the pressure plate 610 in sequence. The plug 800 includes a pin, which includes at least a positive pin 810 and a negative pin 820. The positive pin 810 and the negative pin 820 are collectively referred to as electrode pins. The socket 100 includes a positive socket 110 corresponding to the positive pin 810 and a negative socket 120 corresponding to the negative pin 820. The positive socket 110 and the negative socket 120 are collectively referred to as electrode sockets.

[0046] The socket body includes a socket assembly 200 corresponding to the socket 100. The socket assembly 200 includes a positive socket assembly 210 corresponding to the positive socket 110 and a negative socket assembly 220 corresponding to the negative socket 120. The positive socket assembly 210 and the negative socket assembly 220 are collectively referred to as electrode socket assemblies. It should be noted that the positive socket assembly 210 and the negative socket assembly 220 are existing technologies, and each typically includes an electrically connected socket and a terminal block. When the pin of the plug 800 is inserted into the socket 100, it can be inserted into the socket. The terminals of the positive socket assembly 210 and the negative socket assembly 220 are electrically connected to a DC power supply, forming a power supply circuit for powering the plug 800.

[0047] Specifically, the DC arc-extinguishing socket of this embodiment further includes an arc-extinguishing component 400 and an elastic arc-extinguishing component. The elastic arc-extinguishing component includes a switching component 500 and a first protective door 300. The DC arc-extinguishing socket of this embodiment also includes a main spring 300a connected to the first protective door 300. The first protective door 300 is slidably disposed, and when 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. The switching component 500 includes a conductive element corresponding to a single electrode socket. The conductive element is electrically connected to the arc-extinguishing component 400, and the conductive element is located between the electrode socket and the corresponding electrode socket assembly in the insertion and removal direction of the electrode pin. That is, during the process of inserting the electrode pin into the electrode socket, it first contacts the conductive element and then contacts the electrode socket assembly. During the process of pulling the electrode pin out of the electrode socket, it first separates from the electrode socket assembly and then separates from the conductive element.

[0048] When the plug 800 is inserted into the DC arc-extinguishing socket, at least one pin of the plug 800 engages with the first protective door 300, driving the first protective door 300 to move from a first position to a second position. This allows the first protective door 300 to drive the switching component 500 to the on position, making the conductive element contact the corresponding electrode pin. This enables the arc-extinguishing component 400 to conduct through the conductive element to at least one electrode pin of the plug 800. The main spring 300a drives the first protective door 300 to reset from the second position to the first position, thereby driving the switching component 500 to the off position, separating the conductive element from the corresponding electrode pin.

[0049] like Figure 4 and Figure 5 The illustrated embodiment one or as shown Figure 9 and Figure 10 The illustrated embodiment two or as shown Figure 11 and Figure 12 The embodiment shown in Example 3 or as shown in Example 4 Figure 13 and Figure 14In the fourth embodiment shown, the switching component 500 further 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. In this embodiment, the elastic arc-extinguishing component, through 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 interference occurs between the electrode pin and the conductive element, thus ensuring the contact pressure between the conductive element and the electrode pin, and making the conduction between the conductive element and the electrode pin more stable and reliable. Of course, as a deterioration embodiment, the secondary spring 540 may not be provided.

[0050] It should be noted that the arc-extinguishing assembly 400 includes a PCE board or a PCB board. The arc-extinguishing assembly 400 is electrically connected to the first electrode socket assembly 210 and the second electrode socket assembly 220 to obtain power. The arc-extinguishing assembly 400 is equipped with a DC arc-extinguishing circuit, which can be an existing DC arc-extinguishing circuit used to extinguish the arc during the insertion and removal of the plug 800. For example, the DC arc-extinguishing circuit releases the electrical energy at the conductive part of the switching assembly 500, thereby eliminating the potential difference between the positive and negative electrodes, and thus achieving the arc-extinguishing effect. The arc-extinguishing principle of the arc-extinguishing assembly 400 is existing technology and will not be described in detail here.

[0051] In this embodiment of the DC arc-extinguishing socket, the first protective door 300, driven by the pin, can cause the conductive element to contact the electrode pin to conduct arc-extinguishing component 400 and electrode pin. Driven by the main spring 300a, the first protective door 300 can cause the conductive element to separate from the electrode pin to disconnect arc-extinguishing component 400 and electrode pin. During the insertion and removal of the plug 800, the electrode pin contacts the conductive element before the electrode sleeve assembly and separates from the conductive element after the electrode sleeve assembly. This allows the arc-extinguishing component 400 to extinguish the arc before the electrode pin contacts the electrode sleeve assembly and after the electrode pin separates from the electrode sleeve assembly, thereby improving the safety and service life of the socket.

[0052] Specifically, 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 preferably has a U-shaped structure and 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.

[0053] 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.

[0054] 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.

[0055] like Figures 4-8 As shown in Embodiment 1, the DC arc-extinguishing socket of this embodiment is provided with two sets of switching components 500. The conductive parts of the two sets of switching components 500 are arranged one-to-one with the two electrode sockets, so that the arc-extinguishing component 400 can be connected to the two electrode pins of the plug 800 through the conductive parts of the two sets of switching components 500 respectively. That is, the conductive parts of one set of switching components 500 are arranged corresponding to the positive socket 110 to connect the arc-extinguishing component 400 and the positive pin 810, and the conductive parts of the other set of switching components 500 are arranged corresponding to the negative socket 120 to connect the arc-extinguishing component 400 and the negative pin 820.

[0056] In this embodiment, the conductive element 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 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] like Figure 9 and Figure 10 The difference between Embodiment 2 and Embodiment 1 is that the DC arc-extinguishing socket in this embodiment is that only one set of switching components 500 is provided. The conductive piece 510 of the switching component 500 is correspondingly arranged with the positive terminal 110 to conduct arc-extinguishing component 400 and positive terminal pin 810; or, the conductive piece 510 of the switching component 500 is correspondingly arranged with the negative terminal 120 to conduct arc-extinguishing component 400 and negative terminal pin 820.

[0061] like Figure 11 and Figure 12 The third embodiment shown is different from the first embodiment in that the conductive component structure is different. The conductive component in this embodiment is a conductive needle 520. The conductive needle 520 includes a conductive needle connecting part 521 that is electrically connected to the arc extinguishing component 400, a conductive needle fixing part 522 that is fixedly disposed on the slider 530, and a conductive needle contact part 523 for contacting the electrode pin.

[0062] 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.

[0063] 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.

[0064] like Figure 13 and Figure 14 The difference between Embodiment 4 and Embodiment 3 is that the DC arc-extinguishing socket in this embodiment is that only one set of switching components 500 is provided. The conductive pin 520 of the switching component 500 is correspondingly set with the positive terminal 110 to conduct arc-extinguishing component 400 and positive terminal pin 810; or, the conductive pin 520 of the switching component 500 is correspondingly set with the negative terminal 120 to conduct arc-extinguishing component 400 and negative terminal pin 820.

[0065] like Figure 1 and Figure 3 As shown, in some embodiments, the plug 800 further includes a ground pin 830, and the ground pin 830, positive pin 810 and negative pin 820 are generally arranged in a triangle; correspondingly, the socket 100 of the DC arc extinguishing socket further includes a ground socket 130, and the ground socket 130, positive socket 110 and negative socket 120 are arranged in a triangle; the socket assembly 200 further includes a ground socket assembly 230 corresponding to the ground socket 130.

[0066] like Figure 3 and Figure 6As 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. The first protective door 300 is driven by the ground electrode pin 830, which can drive the switching component 500 to move synchronously towards the electrode socket, so that the switching component 500 can be set more reasonably. 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 protective door 300 is driven by the positive electrode pin 810 or the negative electrode pin 820.

[0067] like Figure 1 , Figure 2 and Figure 6 As shown, in this embodiment, the first protective door 300 is slidably disposed 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.

[0068] like Figure 1 and Figure 2 As shown, in some embodiments, the DC arc-extinguishing socket may also be provided with an isolation bracket 640, which is located between the pressure plate 610 and the cover plate 620. The positive terminal 110 and the negative terminal 120 are respectively provided through the isolation bracket 640. The isolation bracket 640 plays a role in electrically isolating the positive and negative terminals of the socket, thereby improving the electrical safety of the socket.

[0069] like Figure 1 , Figure 2 and Figure 6As shown, in this embodiment, the DC arc-extinguishing socket further 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 positive terminal 110 on the isolation bracket 640 and the positive terminal 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 set along the moving direction of the first protective door 300. One end of the transverse portion is used to block the negative terminal 120 on the isolation bracket 640 and the negative terminal 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.

[0070] In the operation process 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 the second position due to the interference between the driving inclined surface 311 and the ground pin 830 of the plug 800, so as to make way for the ground pin 130 on the pressure plate 610 and the negative pin 120 on the isolation bracket 640, allowing the ground pin 830 and the negative pin 820 to be inserted into place; at the same time, the second protective door 700 moves due to the interference with the positive pin 810 of the plug 800, so as to make way for the positive pin 110 on the isolation bracket 640, allowing the positive pin 810 to be inserted into place.

[0071] 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 positive 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 positive pin 110 on the isolation bracket 640 and the positive pin 110 on the cover plate 620.

[0072] like Figure 1 , Figure 15 and Figure 16As shown, the DC arc-extinguishing socket of this embodiment also 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.

[0073] In this embodiment, the operation of the DC arc-extinguishing socket first pushes the first protection door 300 to the second position through the ground electrode pin 830, causing the secondary spring 540 to be compressed and stored. 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 conducting position, that is, the conductive part of the switching assembly 500 contacts the electrode pin.

[0074] Specifically, the push rod 910 includes a push rod connecting part 911, a push rod mating part 912, and a rotatably mounted 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 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. The slider 530 of the on / off assembly 500 is provided with a locking port 538 that locks into the locking part 915. 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.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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. An elastic arc extinguishing assembly, characterized in that, The utility model relates to a circuit breaker, and particularly relates to a circuit breaker with a movable contact. The circuit breaker comprises a switching assembly (500) and a first protective door (300). The switching assembly (500) comprises a slider (530) and a secondary spring (540). The first protective door (300) is driven by the slider (530) to drive a conductive piece.

2. The elastic arc-quenching assembly of claim 1, wherein: The slider (530) is slidingly arranged on the first protective door (300), and the conductive piece is arranged on the slider (530) and moves synchronously with the slider (530).

3. The elastic arc quenching assembly of claim 2, wherein: The secondary spring (540) is arranged between the slider (530) and the first protective door (300) to provide pressure for the contact between the conductive piece and a corresponding electrode pin (810; 820).

4. The elastic arc quenching assembly of claim 2, wherein: The first protective door (300) comprises a protective door body (310) which is provided with a mounting protrusion (320) corresponding to the slider (530).

5. The elastic arc extinguishing assembly according to any one of claims 1-4, characterized in that: The slider (530) is provided with a receiving groove (531) having two opposite sliding side walls (532).

6. The elastic arc quenching assembly of claim 5, wherein: The mounting protrusion (320) extends into the receiving groove (531) and is slidingly arranged between the two sliding side walls (532).

7. The elastic arc quenching assembly of claim 5, wherein: The secondary spring (540) is arranged in the receiving groove (531), and one end of the secondary spring (540) abuts against the slider (530) and the other end abuts against the mounting protrusion (320). The sliding side wall (532) is provided with a sliding groove (533), and the mounting protrusion (320) is provided with a sliding protrusion (321) slidingly matched with the sliding groove (533). The mounting protrusion (320) is provided with a limiting groove (322) on each side which is matched with the sliding side wall (532), and the sliding side wall (532) is limited in the limiting groove (322). The conductive piece is a conductive sheet (510) which comprises a conductive sheet connecting part (511) electrically connected with an arc extinguishing assembly (400), a conductive sheet fixing part (512) fixedly arranged on the slider (530), and a conductive sheet contact part (513) for contacting with the electrode pin (810; 820). The conductive sheet fixing part (512) is a U-shaped structure attached to the outside of the slider (530), and the two side edges of the conductive sheet fixing part (512) are arranged in the moving direction of the slider (530). The conductive sheet contact part (513) is the outside of the bottom edge of the conductive sheet fixing part (512). One end of the conductive sheet connecting part (511) is connected with one side edge of the conductive sheet fixing part (512), and the other end of the conductive sheet connecting part (511) is arranged obliquely towards the other side edge of the conductive sheet fixing part (512). The outside of the slider (530) is provided with a sink groove (534) matched with the conductive sheet fixing part (512). The conductive sheet fixing part (512) is arranged in the sink groove (534) and is fixedly connected with the slider (530). The conductive sheet fixing part (512) is provided with a fixing hole (514), and the sink groove (534) is provided with a fixing protrusion (535) corresponding to the fixing hole (514).

8. The elastic arc extinguishing assembly according to any one of claims 1-4, characterized in that: The conductive piece is a conductive pin (520), which comprises a conductive pin connecting part (521) electrically connected with the arc extinguishing assembly (400), a conductive pin fixing part (522) fixedly arranged on the sliding block (530), and a conductive pin contact part (523) for contacting the electrode plug (810; 820).

9. The elastic arc quenching assembly of claim 8, wherein: The conductive pin connecting part (521), the conductive pin fixing part (522) and the conductive pin contact part (523) are sequentially connected along the moving direction of the sliding block (530), the conductive pin fixing part (522) at least penetrates the sliding block (530), and the sliding block (530) is provided with a third through hole (537) matched with the conductive pin fixing part (522).

10. A direct current arclet socket comprising a socket hole (100) for the insertion of a plug pin (800) and a socket assembly (200) corresponding to the socket hole (100), said plug pin comprising at least two electrode pins (810; 820), said socket hole (100) comprising electrode holes (110; 120) corresponding to the electrode pins (810; 820), said socket assembly (200) comprising electrode socket assemblies (210; 220) corresponding to the electrode holes (110; 120); characterized in that: The socket further comprises the arc extinguishing assembly (400) and the elastic arc extinguishing assembly according to any one of claims 1-9, the socket further comprises a main spring (300a) connected with the first protective door (300) of the elastic arc extinguishing assembly, the first protective door (300) is slidingly arranged, and the first protective door (300) at least blocks between the part of the socket (100) and the corresponding socket assembly (200) when being at the first position; the on-off assembly (500) of the elastic arc extinguishing assembly comprises a conductive piece corresponding to the single electrode socket (110; 120), the conductive piece is electrically connected with the arc extinguishing assembly (400), and the conductive piece is located between the electrode socket (110; 120) and the corresponding electrode socket assembly (210; 220) in the plugging direction of the electrode plug (810; 820); When the plug (800) is inserted, the first protective door (300) can be driven to move from the first position to the second position, the first protective door (300) can drive the on-off assembly (500) to the conducting position, the conductive piece contacts the corresponding electrode plug (810; 820), the arc extinguishing assembly (400) is conducted through the conductive piece and the at least one electrode plug (810; 820) of the plug (800); the main spring (300a) is used for driving the first protective door (300) to reset from the second position to the first position, so that the first protective door (300) drives the on-off assembly (500) to the off position, and the conductive piece is separated from the corresponding electrode plug (810; 820).

11. The DC arclet socket of claim 10, wherein: Two groups of on-off assemblies (500) are arranged, the conductive pieces of the two groups of on-off assemblies (500) are one-to-one corresponding to the two electrode sockets (110; 120), so that the arc extinguishing assembly (400) can be conducted through the conductive pieces of the two groups of on-off assemblies (500) and the two electrode plugs (810; 820) of the plug (800) respectively.

12. The DC arclet socket of claim 10, wherein: The plug further comprises a ground plug (830), the socket (100) comprises a ground socket (130) corresponding to the ground plug (830), the first protection door (300) is provided with a driving slope (311) extending into the ground socket (130), and the ground plug (830) pushes the first protection door (300) through the driving slope (311) when inserted into the ground socket (130), so that the first protection door (300) moves from the first position to the second position.

13. The DC arclet socket of claim 10, wherein: The push rod assembly (900) corresponding to the on-off assembly (500) is further provided, each push rod assembly (900) comprises a push rod (910) and a reset spring (920) connected with the push rod (910), the push rod (910) can move between a third position and a fourth position, the electrode plug (810; 820) can drive the push rod (910) to move from the third position to the fourth position when inserted into the corresponding electrode socket (110; 120), and the reset spring (920) is used to drive the push rod (910) to reset 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.

14. The DC arclet socket of claim 13, wherein: The push rod (910) comprises a push rod connecting part (911), a push rod matching part (912) and a rotationally arranged push rod rotating part (913), the push rod connecting part (911) is connected with the reset spring (920), the push rod matching part (912) is provided with a push rod slope (914) and a locking part (915), the push rod slope (914) extends into the corresponding electrode socket (110; 120), the electrode plug (810; 820) pushes the push rod (910) through the push rod slope (914) when inserted into the corresponding electrode socket (110; 120), so that the push rod (910) moves from the third position to the fourth position, and the locking part (915) is located on the movement path of the on-off assembly (500) from the off position to the on position when in the third position.

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