Arc extinguishing chamber conducting rod connecting device and arc extinguishing device

Abstract

The invention relates to an arc extinguishing chamber conducting rod connecting device and an arc extinguishing device. The arc extinguish chamber conducting rod connecting device is used for being connected with a moving end conducting rod of an arc extinguish chamber and comprises a guide mechanism, a sliding mechanism and an insulating rod. And the guide mechanism is made of a conductive material. The sliding mechanism is made of conductive materials, the sliding mechanism is in sliding connection and electric connection with the guide mechanism, and the sliding mechanism slides along the guide mechanism. One end part of the insulating rod is connected with one end part of the moving end conducting rod; the insulating rod and the moving end conducting rod are connected with the sliding mechanism so as to be driven by the sliding mechanism to move along the guide mechanism. The moving end conducting rod, the sliding mechanism and the guiding mechanism are electrically connected, current can be led out through the guiding mechanism, the guiding mechanism and the sliding mechanism are in sliding connection, circuit conduction can be achieved without arranging structures such as nuts and flexible wires, the size and weight of the connecting device connected with the arc extinguish chamber conducting rod can be effectively reduced, and the connecting device is convenient to use. And the installation space required by the arc extinguishing device is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of electrical connectors, and in particular to an arc extinguishing chamber conductive rod connecting device and an arc extinguishing device. Background Art

[0002] With the development of high-voltage electricity technology, arc extinguishing chamber technology has emerged. The arc extinguishing chamber is set with a fixed static end and a movable dynamic end. The dynamic end is moved to control the contact and separation of the static end and the dynamic end. When the dynamic end and the static end are in contact, the dynamic end and the static end are energized. When the dynamic end and the static end are separated, the dynamic end and the static end are deenergized. At the moment of power failure, the arc generated by the high voltage between the dynamic end and the static end can be quickly eliminated due to the environment in the arc extinguishing chamber, achieving the effect of safe power failure.

[0003] In the related art, the moving end of the arc extinguishing chamber is usually provided with an insulating rod, and the insulating rod and the moving end of the arc extinguishing chamber are connected by a conductive clamp. The connection method of the conductive clamp is: the moving end and the insulating rod are connected by a conductive clamp, and a soft wire for leading out the current is provided on the side of the conductive clamp, and the soft wire is fixed to the conductive clamp by a nut, and a current path of static end-moving end-conductive clamp-soft wire is formed when power is turned on.

[0004] The above method requires the flexible wire to be fixed to the conductive clip by a nut. In the case of high voltage and high rated current, the contact area between the flexible wire and the conductive clip needs to be increased to prevent the resistance between the flexible wire and the conductive clip from being too large, causing heating, etc., to ensure the safety of electricity use. Therefore, the size of the nut needs to be increased to ensure that the contact area between the flexible wire and the conductive clip reaches the specified size, and the volume of the conductive clip also needs to be increased accordingly to ensure that the nut can fix the flexible wire on the conductive clip. Therefore, the volume and weight of the conductive clip and the nut will be greatly increased, so that the arc extinguishing device requires a larger installation space, and the installation and use are subject to certain restrictions. Summary of the invention

[0005] Based on this, it is necessary to provide an arc extinguishing chamber conductive rod connecting device and an arc extinguishing device to address the problem that the conductive clip and nut are large in size and weight.

[0006] On the one hand, the present application provides an arc extinguishing chamber conductive rod connecting device, which is used to connect with the movable end conductive rod of the arc extinguishing chamber, and includes a guide mechanism, a sliding mechanism and an insulating rod. The guide mechanism is made of a conductive material. The sliding mechanism is made of a conductive material, the sliding mechanism is slidably connected and electrically connected to the guide mechanism, and the sliding mechanism slides along the guide mechanism. One end of the insulating rod is connected to one end of the movable end conductive rod; the insulating rod and the movable end conductive rod are both connected to the sliding mechanism to move along the guide mechanism driven by the sliding mechanism.

[0007] In some embodiments, the guide mechanism includes a guide cylinder, the guide cylinder is slidably sleeved on the outer periphery of the sliding mechanism, and the sliding mechanism can slide along the length direction of the guide cylinder.

[0008] Furthermore, the guide cylinder includes a sliding part and a connecting part; wherein, the sliding part is a cylindrical structure, a guide hole arranged along the length direction of the sliding part is opened in the middle of the sliding part, and the sliding mechanism is arranged inside the guide hole and in sliding contact with the inner wall of the guide hole; the connecting part is a disc structure with a hole opened in the middle, the connecting part is located at one end of the sliding part, the inner side wall of the connecting part is connected to the outer side wall of the sliding part, and the connecting part and the sliding part are integrally formed.

[0009] In some embodiments, the sliding mechanism includes a slider, and the slider is slidably connected to the guide mechanism; the insulating rod and the movable end conductive rod are both connected to the slider.

[0010] Furthermore, a through hole is opened in the middle of the slider, the insulating rod and the movable end conductive rod are both inserted into the through hole, and the connection position between the insulating rod and the movable end conductive rod is located in the through hole, and the outer side wall of the insulating rod and the outer side wall of the movable end conductive rod are both connected to the inner wall of the through hole.

[0011] In some of the embodiments, in the sliding direction of the sliding mechanism, the length of the guide mechanism is less than or equal to the length of the sliding mechanism.

[0012] On the other hand, the present application also provides an arc extinguishing device, including the above-mentioned arc extinguishing chamber conductive rod connecting device, and also including a static end electrode, a dynamic end electrode, a control mechanism and an arc extinguishing chamber. Among them, the static end electrode includes a static end conductive rod and a static end contact, and the static end conductive rod is electrically connected to the static end contact. The dynamic end electrode includes a dynamic end contact and the dynamic end conductive rod, and the other end of the dynamic end conductive rod is electrically connected to the dynamic end contact, and the dynamic end contact can move with the dynamic end conductive rod to adjust the contact and separation between the dynamic end contact and the static end contact. The control mechanism is connected to the sliding mechanism or the insulating rod, and the control mechanism is used to drive the sliding mechanism to move. The arc extinguishing chamber is provided with a cavity inside, and the static end contact and the dynamic end contact are arranged in the cavity; the static end conductive rod is connected to the side wall of the arc extinguishing chamber, and the dynamic end conductive rod is slidably connected to the side wall of the arc extinguishing chamber.

[0013] In one embodiment, the static end contact and the dynamic end contact are hollow structures.

[0014] In one embodiment, the static end electrode also includes a first electrode sheet, which is laid on a side of the static end contact close to the moving end contact; the moving end electrode also includes a second electrode sheet, which is laid on a side of the moving end contact close to the static end contact and moves with the moving end contact; the first electrode sheet is in contact with the second electrode sheet.

[0015] In one embodiment, the control mechanism includes a circuit breaker operating mechanism, and the circuit breaker operating mechanism is connected to the insulating rod and is used to drive the insulating rod to move.

[0016] In the above-mentioned arc extinguishing chamber conductive rod connecting device and arc extinguishing device, the insulating rod is connected to the end of the movable end conductive rod, and is respectively connected and fixed to the sliding mechanism, so that the insulating rod and the movable end conductive rod are stably connected; by setting a guiding mechanism, the sliding mechanism can drive the movable end conductive rod and the insulating rod to slide along the guiding mechanism, so as to control the circuit on and off between the movable end and the static end; and the guiding mechanism and the sliding mechanism are both made of conductive materials, connected to the sliding mechanism through the movable end conductive rod, and electrically connected to the guiding mechanism, so that the current can be drawn through the guiding mechanism, and the guiding mechanism and the sliding mechanism are slidingly connected, so that the circuit can be conducted without setting structures such as nuts and soft wires, which can effectively reduce the volume and weight of the connecting device connected to the arc extinguishing chamber conductive rod, thereby reducing the installation space required for the arc extinguishing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural cross-sectional view of an arc extinguishing device in accordance with an embodiment of an arc extinguishing chamber conductive rod connecting device and an arc extinguishing device of the present application.

[0018] Figure 2 This is a structural cross-sectional view of an arc extinguishing chamber of an embodiment of an arc extinguishing chamber conductive rod connecting device and an arc extinguishing device of the present application.

[0019] Among them, 100, guide mechanism; 110, guide cylinder; 111, sliding part; 112, connecting part; 200, sliding mechanism; 210, slider; 300, insulating rod; 400, moving end electrode; 410, moving end conductive rod; 420, moving end contact; 430, second electrode sheet; 500, static end electrode; 510, static end conductive rod; 520, static end contact; 530, first electrode sheet; 600, arc extinguishing chamber. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0021] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0022] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0023] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0024] In this application, unless otherwise clearly specified and limited, if there is a description that a first feature is "on" or "below" a second feature, etc., it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

[0025] See also Figure 1 , Figure 1 The schematic diagram of the structure of the conductive rod connecting device of the arc extinguishing chamber 600 and the arc extinguishing device in an embodiment of the present application is shown. On the one hand, the present application provides a conductive rod connecting device of the arc extinguishing chamber 600, which is used to connect with the movable end conductive rod 410 of the arc extinguishing chamber 600; the conductive rod connecting device of the arc extinguishing chamber 600 includes a guide mechanism 100, a sliding mechanism 200 and an insulating rod 300. Among them, the material of the guide mechanism 100 is a conductive material. The material of the sliding mechanism 200 is a conductive material, the sliding mechanism 200 is slidably connected and electrically connected to the guide mechanism 100, and the sliding mechanism 200 slides along the guide mechanism 100. One end of the insulating rod 300 is connected to one end of the movable end conductive rod 410; the insulating rod 300 and the movable end conductive rod 410 are both connected to the sliding mechanism 200 to move along the guide mechanism 100 under the drive of the sliding mechanism 200.

[0026] It should be noted that the end of the insulating rod 300 is connected to the end of the movable conductive rod 410, and the insulating rod 300 and the movable conductive rod 410 are fixedly connected to the sliding mechanism 200, so that the connection between the insulating rod 300 and the movable conductive rod 410 is more stable. The sliding mechanism 200 is slidably connected to the guide mechanism 100, and the sliding mechanism 200 can slide back and forth on the guide mechanism 100 along a certain direction. When the sliding mechanism 200 slides, it can drive the insulating rod 300 and the movable conductive rod 410 to move along the sliding direction of the sliding mechanism 200, thereby driving the movable end of the arc extinguishing chamber 600 to move, so as to control the contact and separation between the movable end and the static end of the arc extinguishing chamber 600, thereby realizing power on and off. The sliding mechanism 200 is in direct contact with the moving end conductive rod 410, and the sliding mechanism 200 is electrically connected to the guide mechanism 100. When the moving end of the arc extinguishing chamber 600 is in contact with the static end, the current forms a current path through the static end of the arc extinguishing chamber 600, the moving end conductive rod 410, the sliding mechanism 200 and the guide mechanism 100, thereby achieving current conduction.

[0027] When the circuit needs to be connected, the sliding mechanism 200 is controlled to move upward, and the sliding mechanism 200 drives the insulating rod 300 and the moving end conductive rod 410 to move upward until the moving end of the arc extinguishing chamber 600 contacts the static end of the arc extinguishing chamber 600. At this time, the circuit is connected, and the current is led out through the guide mechanism 100. When the circuit needs to be disconnected, the sliding mechanism 200 is moved downward to make the moving end of the arc extinguishing chamber 600 away from the static end of the arc extinguishing chamber 600, so that the circuit is disconnected. When the moving end of the arc extinguishing chamber 600 is separated from the static end, the arc generated by the high voltage can be quickly removed due to the internal conditions of the arc extinguishing chamber 600, which will not be described in detail here. Through the above-mentioned structure and operation method, the current can be directly led out by forming a current path through the sliding mechanism 200, the guide mechanism 100 and the moving end conductive rod 410. Compared with the original conductive clip connection method, there is no need to set up soft wires, nuts and other structures. The circuit can be connected only through a surface contact sliding connection method. There is no need to reserve installation space for structures such as nuts. The volume and weight of the connecting device connected to the moving end conductive rod 410 of the arc extinguishing chamber 600 can be effectively reduced to save space and facilitate installation and use.

[0028] Preferably, the guide mechanism 100 includes a guide cylinder 110 , which is slidably mounted on the outer periphery of the sliding mechanism 200 , and the sliding mechanism 200 can slide along the length direction of the guide cylinder 110 .

[0029] In some embodiments, the guide cylinder 110 is coaxially arranged with the movable end conductive rod 410, and the sliding mechanism 200 slides along the axis of the guide cylinder 110, driving the movable end conductive rod 410 to move along its own axis direction, thereby improving the sliding continuity of the sliding mechanism 200. The guide cylinder 110 is sleeved on the outer periphery of the sliding mechanism 200, which can ensure that the sliding mechanism 200 is not easily offset or misaligned.

[0030] Furthermore, the guide cylinder 110 includes a sliding portion 111 and a connecting portion 112; wherein the sliding portion 111 is a cylindrical structure, a guide hole arranged along the length direction of the sliding portion 111 is opened in the middle of the sliding portion 111, and the sliding mechanism 200 is arranged inside the guide hole and in sliding contact with the inner wall of the guide hole; the connecting portion 112 is a disc structure with a hole opened in the middle, the connecting portion 112 is located at one end of the sliding portion 111, the inner wall of the connecting portion 112 is connected to the outer wall of the sliding portion 111, and the connecting portion 112 and the sliding portion 111 are integrally formed.

[0031] In some embodiments, the diameter of the guide hole is slightly larger than the diameter of the sliding mechanism 200, so that the sliding mechanism 200 can be closely attached to the inner wall of the guide hole, ensuring that the sliding mechanism 200 does not deviate when the sliding mechanism 200 slides in the guide hole along the length direction of the guide hole, and the sliding mechanism 200 and the guide mechanism 100 are electrically connected through the contact between the sliding mechanism 200 and the inner wall of the guide hole. The connecting portion 112 is located at the upper end of the sliding portion 111, and the connecting portion 112 is integrally formed with the sliding portion 111 to ensure the connection strength between the sliding portion 111 and the connecting portion 112. The connecting portion 112 forms a structure similar to a hat brim at the upper end of the sliding portion 111. The connecting portion 112 is used to be installed and fixed with an external fixed structure, so as to facilitate fixing the guide cylinder 110 to the lower end position of the movable end conductive rod 410 to limit the sliding range of the sliding mechanism 200.

[0032] Preferably, the sliding mechanism 200 includes a slider 210 , and the slider 210 is slidably connected to the guide mechanism 100 ; the insulating rod 300 and the movable end conductive rod 410 are both connected to the slider 210 .

[0033] The slider 210 is made of conductive material to achieve the conductive function. In some embodiments, the slider 210 determines the shape according to the shape of the guide mechanism 100, and determines the surface area in contact with the guide mechanism 100 and its own volume according to the rated current during operation, which is convenient for processing and manufacturing. The slider 210 can drive the insulating rod 300 and the movable end conductive rod 410 to slide along the guide mechanism 100.

[0034] Furthermore, a through hole is opened in the middle of the slider 210, and the insulating rod 300 and the movable end conductive rod 410 are both inserted into the through hole, and the connection position between the insulating rod 300 and the movable end conductive rod 410 is located in the through hole, and the outer wall of the insulating rod 300 and the outer wall of the movable end conductive rod 410 are both connected to the inner wall of the through hole.

[0035] In some embodiments, the slider 210 is sleeved on the outer periphery of the insulating rod 300 and the movable conductive rod 410, and the connection between the insulating rod 300 and the movable conductive rod 410 is located in the through hole, so that the insulating rod 300 and the movable conductive rod 410 can be more firmly connected through the slider 210. The outer wall of the movable conductive rod 410 contacts the inner wall of the through hole, so that the electrical connection between the movable conductive rod 410 and the slider 210 is achieved. In addition, the contact area between the movable conductive rod 410 and the inner wall of the through hole can be adjusted according to the size of the rated current.

[0036] Preferably, in the sliding direction of the sliding mechanism 200 , the length of the guide mechanism 100 is less than or equal to the length of the sliding mechanism 200 .

[0037] In some embodiments, when the slider 210 moves up to the movable end of the arc extinguishing chamber 600 and contacts the static end, the upper end surface of the sliding mechanism 200 is flush with the upper end surface of the guide mechanism 100. Since the length of the guide mechanism 100 is less than or equal to the length of the sliding mechanism 200, when the sliding mechanism 200 moves down to separate the movable end of the arc extinguishing chamber 600 from the static end, the lower end position of the outer wall of the sliding mechanism 200 does not contact the guide mechanism 100, that is, the contact area between the sliding mechanism 200 and the guide mechanism 100 decreases as the sliding mechanism 200 moves down, thereby increasing the resistance between the sliding mechanism 200 and the guide mechanism 100 to improve the arc extinguishing effect of the movable end and the static end of the arc extinguishing chamber 600. When the sliding mechanism 200 moves up to make the movable end of the arc extinguishing chamber 600 contact the static end, the contact area between the sliding mechanism 200 and the guide mechanism 100 reaches the maximum, that is, the contact area designed according to the rated current, which does not affect the normal connection of the circuit. This method is simple to design and operate, and when the circuit is disconnected, it can increase the resistance of the moving end of the arc extinguishing chamber 600 to improve the arc extinguishing effect.

[0038] On the basis of the above structure, limiting members may be provided at the upper and lower end surfaces of the sliding mechanism 200 or the guiding mechanism 100 to prevent the sliding mechanism 200 from being separated from the guiding mechanism 100 .

[0039] On the other hand, see Figure 2 The present application also provides an arc extinguishing device, including the above-mentioned arc extinguishing chamber 600 conductive rod connecting device, and also including a static end electrode 500, a dynamic end electrode 400, a control mechanism and an arc extinguishing chamber 600. Among them, the static end electrode 500 includes a static end conductive rod 510 and a static end contact 520, and the static end conductive rod 510 and the static end contact 520 are electrically connected. The dynamic end electrode 400 includes a dynamic end contact 420 and a dynamic end conductive rod 410, and the other end of the dynamic end conductive rod 410 is electrically connected to the dynamic end contact 420, and the dynamic end contact 420 can move with the dynamic end conductive rod 410 to adjust the contact and separation between the dynamic end contact 420 and the static end contact 520. The control mechanism (not shown in the figure) is connected to the sliding mechanism 200 or the insulating rod 300, and the control mechanism is used to drive the sliding mechanism 200 to move. The arc extinguishing chamber 600 (not shown) has a cavity inside, and the static end contact 520 and the moving end contact 420 are arranged in the cavity; the static end conductive rod 510 is connected to the side wall of the arc extinguishing chamber 600, and the moving end conductive rod 410 is slidably connected to the side wall of the arc extinguishing chamber 600.

[0040] In some embodiments, the arc extinguishing chamber 600 is a vacuum arc extinguishing chamber, and the moving end electrode 400 and the static end electrode 500 extend from both ends of the arc extinguishing chamber 600 to the middle of the arc extinguishing chamber 600 and are connected. The static end contact 520 is fixed at the upper end of the arc extinguishing chamber 600 through the static end conductive rod 510; the moving end contact 420 is slidably connected to the lower end of the arc extinguishing chamber 600 through the moving end conductive rod 410. The diameter of the moving end contact 420 is larger than the diameter of the moving end conductive rod 410, so that the moving end contact 420 moves in the arc extinguishing chamber 600. The operating mechanism can be controlled electrically or manually to pull the insulating rod 300 to drive the sliding mechanism 200 and the moving end electrode 400 to move up and down.

[0041] By reducing the volume and weight of the arc extinguishing chamber 600 conductive rod connecting device, the installation space required for the arc extinguishing device can be reduced, and the arc extinguishing device is easier to operate when being installed.

[0042] Preferably, the static end contact 520 and the dynamic end contact 420 are hollow structures.

[0043] In some embodiments, the static contact 520 and the movable contact 420 are configured as hollow structures, which can reduce the weight of the static contact 520 and the movable contact 420 and save the materials used to make the static contact 520 and the movable contact 420. On this basis, cooling materials can be filled inside the static contact 520 and the movable contact 420 to prevent the static contact 520 and the movable contact 420 from being overheated during use.

[0044] Preferably, the static end electrode 500 also includes a first electrode sheet 530, which is laid on the side of the static end contact 520 close to the moving end contact 420; the moving end electrode 400 also includes a second electrode sheet 430, which is laid on the side of the moving end contact 420 close to the static end contact 520 and moves with the moving end contact 420; the first electrode sheet 530 is in contact with the second electrode sheet 430.

[0045] In some embodiments, the static end contact 520 and the dynamic end contact 420 are in contact through the first electrode sheet 530 and the second electrode sheet 430. The first electrode sheet 530 and the second electrode sheet 430 are made of materials that are not easily broken down by high voltage current, thereby improving the safety of the contact surface between the static end contact 520 and the dynamic end contact 420.

[0046] Preferably, the control mechanism includes a circuit breaker operating mechanism, which is connected to the insulating rod 300 and is used to drive the insulating rod 300 to move.

[0047] In some embodiments, the circuit breaker operating mechanism may use a spring operating mechanism or an electromagnetic operating mechanism, which will not be described in detail herein; the circuit breaker operating mechanism is connected to the insulating rod 300, and the circuit breaker operating mechanism is an insulating material. When the static end electrode 500 and the moving end electrode 400 need to be separated, the operator controls the circuit breaker operating mechanism, so that the insulating rod 300 drives the sliding mechanism 200 and the moving end electrode 400 to move downward, so that the static end electrode 500 and the moving end electrode 400 are separated. When the static end electrode 500 and the moving end electrode 400 need to be in contact, the operator controls the circuit breaker operating mechanism, so that the insulating rod 300 drives the sliding mechanism 200 and the moving end electrode 400 to move upward, so that the static end electrode 500 and the moving end electrode 400 are in contact. Controlling the movement of the sliding mechanism 200 through the circuit breaker operating mechanism is simple to operate and has high safety.

[0048] The specific implementation process of the present application is as follows: one end of the insulating rod 300 is connected to one end of the movable conductive rod 410. The slider 210 is sleeved on the outer periphery of the connection between the insulating rod 300 and the movable conductive rod 410, and the guide cylinder 110 is sleeved on the outer periphery of the slider 210, and the guide cylinder 110 is fixedly arranged at the lower end of the movable conductive rod 410.

[0049] When it is necessary to separate the moving electrode 400 and the static electrode 500, the operator controls the circuit breaker operating mechanism to move the slider 210, the insulating rod 300 and the moving electrode 400 downward. At this time, the moving electrode 400 and the static electrode 500 are separated. Since an arc is generated between the high-voltage moving electrode 400 and the static electrode 500, the downward movement of the slider 210 reduces the contact area between the slider 210 and the guide cylinder 110, and the resistance on one side of the moving electrode 400 increases. Under the action of the arc extinguishing chamber 600, the resistance on one side of the moving electrode 400 increases, and a faster arc extinguishing is achieved. When it is necessary to make the moving electrode 400 and the static electrode 500 contact, the operator controls the circuit breaker operating mechanism to achieve the moving electrode 400 and the static electrode 500 contact.

[0050] The beneficial effects that can be achieved by the above implementation process include: the moving end electrode 400 can be moved by setting the guiding mechanism 100 and the sliding mechanism 200 to realize the control of the circuit on and off of the arc extinguishing device, and the sliding mechanism 200 and the guiding mechanism 100 can both conduct electricity to lead the current at the moving end conductive rod 410, without the need to set a nut and a soft wire structure, thereby reducing the volume and weight of the connecting device connected to the moving end conductive rod 410, and at the same time reducing the installation space required for the arc extinguishing device, making the arc extinguishing device lighter and easier to install.

[0051] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An arc extinguishing chamber conductive rod connecting device, used to connect with the movable end conductive rod of the arc extinguishing chamber, characterized in that: include: A guiding mechanism, made of a conductive material; A sliding mechanism, made of a conductive material, the sliding mechanism is slidably connected and electrically connected to the guide mechanism, and the sliding mechanism slides along the guide mechanism; An insulating rod, one end of which is connected to one end of the movable end conductive rod; the insulating rod and the movable end conductive rod are both connected to the sliding mechanism to move along the guide mechanism under the drive of the sliding mechanism.

2. The arc extinguishing chamber conductive rod connecting device according to claim 1, characterized in that: The guide mechanism comprises a guide cylinder, and the guide cylinder is slidably sleeved on the outer periphery of the sliding mechanism, and the sliding mechanism can slide along the length direction of the guide cylinder.

3. The arc extinguishing chamber conductive rod connecting device according to claim 2, characterized in that: The guide cylinder includes a sliding part and a connecting part; wherein, the sliding part is a cylindrical structure, a guide hole arranged along the length direction of the sliding part is opened in the middle of the sliding part, and the sliding mechanism is arranged inside the guide hole and is in sliding contact with the inner wall of the guide hole; the connecting part is a disc structure with a hole opened in the middle, the connecting part is located at one end of the sliding part, the inner side wall of the connecting part is connected to the outer side wall of the sliding part, and the connecting part and the sliding part are integrally formed.

4. The arc extinguishing chamber conductive rod connecting device according to claim 1, characterized in that: The sliding mechanism comprises a sliding block, and the sliding block is slidably connected to the guiding mechanism; the insulating rod and the movable end conductive rod are both connected to the sliding block.

5. The arc extinguishing chamber conductive rod connecting device according to claim 4, characterized in that: A through hole is opened in the middle of the slider, the insulating rod and the movable end conductive rod are both inserted in the through hole, and the connection position between the insulating rod and the movable end conductive rod is located in the through hole, and the outer side wall of the insulating rod and the outer side wall of the movable end conductive rod are both connected to the inner wall of the through hole.

6. The arc extinguishing chamber conductive rod connecting device according to claim 1, characterized in that: In the sliding direction of the sliding mechanism, the length of the guide mechanism is less than or equal to the length of the sliding mechanism.

7. An arc extinguishing device, characterized in that: The arc extinguishing chamber conductive rod connecting device according to any one of claims 1 to 6 further comprises: The static end electrode comprises a static end conductive rod and a static end contact, wherein the static end conductive rod and the static end contact are electrically connected; A moving end electrode, comprising a moving end contact and the moving end conductive rod, the other end of the moving end conductive rod being electrically connected to the moving end contact, and the moving end contact being able to move with the moving end conductive rod to adjust the contact and separation between the moving end contact and the static end contact; A control mechanism connected to the sliding mechanism or the insulating rod, the control mechanism being used to drive the sliding mechanism to move; The arc extinguishing chamber has a cavity inside, and the static end contact and the dynamic end contact are arranged in the cavity; the static end conductive rod is connected to the side wall of the arc extinguishing chamber, and the dynamic end conductive rod is slidably connected to the side wall of the arc extinguishing chamber.

8. The arc extinguishing device according to claim 7, characterized in that: The static end contact and the movable end contact are hollow structures.

9. The arc extinguishing device according to claim 7, characterized in that: The static end electrode also includes a first electrode sheet, which is laid on a side of the static end contact close to the dynamic end contact; the dynamic end electrode also includes a second electrode sheet, which is laid on a side of the dynamic end contact close to the static end contact and moves with the dynamic end contact; the first electrode sheet is in contact with the second electrode sheet.

10. The arc extinguishing device according to claim 7, characterized in that: The control mechanism comprises a circuit breaker operating mechanism, and the circuit breaker operating mechanism is connected to the insulating rod and is used to drive the insulating rod to move.

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