220V low-voltage electric vacuum load switch

Abstract

The utility model belongs to the technical field of switches, and particularly relates to a 220V low-voltage electric vacuum load switch. The utility model provides a 220V low-voltage electric vacuum load switch, and the electric vacuum load switch provides an equipment basis for realizing remote control and remote automatic control functions. The device comprises a box body, a standard vacuum tube provided with a fixed electric conductor and a movable contact rod is arranged in the box body, the movable contact rod of the standard vacuum tube is connected with a connecting flexible lead, and the output end of the connecting flexible lead and the input end of the fixed electric conductor are both arranged outside the box body. A telescopic rod of the electric push-pull device is connected with an insulating pull rod through a connecting piece, and the insulating pull rod is fixedly connected with the movable contact rod.

Description

Technical Field

[0001] The utility model belongs to the technical field of switches, and in particular relates to a 220V low-voltage electric vacuum load switch. Background Art

[0002] Currently, urban distribution networks are developing towards intelligent and automated systems. The core goal of intelligent distribution networks is to achieve efficient, reliable, and automated operation of the power system. To achieve this goal, each node device in the grid must possess automated control capabilities to enable unified dispatch and management through remote monitoring and operation. However, currently, 220V low-voltage load switches are all manually operated. This manual control method is not only inefficient but also fails to meet the requirements of intelligent distribution networks, hindering the development of intelligent power grids as a whole.

[0003] On the other hand, in practical applications, 220V low-voltage power supply lines primarily use three-phase integrated knife-type load switches to simultaneously turn the power on and off. However, most residential users rely on single-phase power supply. This conflict between supply and demand further exposes the inflexibility of existing equipment. This not only increases operational complexity for users but can also lead to energy waste and inefficiency. Therefore, developing a low-voltage load switch that can meet the needs of remote automated control while adapting to single-phase power supply requirements is key to solving this problem. Summary of the Invention

[0004] The utility model aims at solving the above problems and provides a 220V low-voltage electric vacuum load switch. The electric vacuum load switch provides an equipment basis for realizing remote control and remote automatic control functions.

[0005] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical solution, which includes a box body, in which a standard vacuum tube having a fixed conductor and a movable contact rod is arranged, the movable contact rod of the standard vacuum tube is connected to a connecting soft wire, the output end of the connecting soft wire and the input end of the fixed conductor are both arranged outside the box body, and is characterized in that an electric push-pull device is arranged in the box body, the telescopic rod of the electric push-pull device is connected to an insulating pull rod via a connecting piece, and the insulating pull rod is fixedly connected to the movable contact rod.

[0006] As a preferred solution of the present utility model, an insulating isolation plate is provided in the box body, one side of the insulating isolation plate is a non-electric operation compartment, and the other side is a charged compartment; the electric push-pull device is arranged in the non-electric operation compartment, and the connecting piece passes through the insulating isolation plate and is connected to the insulating pull rod in the charged compartment.

[0007] As another preferred solution of the present invention, a marking rod is provided in the box body, with one end hinged and fixed, the middle part hinged to the connecting piece, and the other end extending out of the box body, and a guide groove corresponding to the marking rod is provided on the box body.

[0008] Furthermore, the middle portion of the marking rod and the connecting piece are connected to each other through a connecting shaft and a connecting hole; the inner diameter of the connecting hole is larger than the outer diameter of the connecting shaft.

[0009] Furthermore, a spring seat is provided on both sides of the middle of the guide groove in the box body, and a thrust spring is provided on each of the two spring seats. The two thrust springs are respectively connected to the two sides of the marking rod.

[0010] As a third preferred solution of the present utility model, the electric push-pull device is connected to a solar power source.

[0011] As a fourth preferred solution of the present invention, a network camera corresponding to the marking pole is provided outside the box.

[0012] As a fifth preferred solution of the present utility model, the electric push-pull device is connected to the box body via a hinged bracket; a position adjustment component is further provided between the hinged bracket and the box body.

[0013] The beneficial effects of the utility model are as follows: 1. The utility model uses an electric push-pull device to control the separation and closing of a standard vacuum tube. The electric push-pull device can use a 24V DC power supply, that is, a rechargeable lithium battery, which is charged with a solar photovoltaic power supply and has the advantages of long life and maintenance-free. The power battery can be installed in the box and is not affected by power outages in the controlled circuit.

[0014] 2. The pulling force of the electric push-pull device of the utility model is greater than the self-closing force provided by the standard vacuum tube for the moving contact, which pulls open the moving contact rod and puts the vacuum load switch in the open state.

[0015] 3. The electric push-pull device used in the present invention can be purchased from the market and has a self-locking function. It relies on its own gear set to prevent reverse operation between the push-pull rod and the movable push-pull rod.

[0016] 4. The thrust of the electric push-pull device of the utility model pushes the vacuum tube to move the contact rod. At this time, the thrust of the electric push-pull rod and the self-closing force provided by the vacuum tube are in the same direction, so that the moving contact rod merges with the fixed conductor, putting the vacuum load switch in the closed state.

[0017] 5. The utility model uses an electric push-pull device to control the opening or closing of the switch. In conjunction with a network camera, it can realize remote viewing of the operating status or maintenance and repair process of the switch, and can record the entire process.

[0018] 6. Due to the structural characteristics of the utility model, single-phase load switch operation can be realized, thereby meeting the user's power control needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the present utility model.

[0020] Figure 2 yes Figure 1 AA cross-sectional view.

[0021] Figure 3 This is a schematic diagram of the position of the marking rod in the open state.

[0022] Figure 4 This is a schematic diagram of the position of the marking rod in the closed state.

[0023] Figures 2-4 In the figure, F is the thrust direction of the thrust spring.

[0024] In the accompanying drawings, 1 is a standard vacuum tube, 2 is a box body, 3 is a connecting soft wire, 4 is a conductive output terminal, 5 is an insulating isolation plate, 6 is a marking rod, 7 is a connecting piece, 8 is an electric push-pull device, 9 is a motor control line, 10 is a position adjustment component, 11 is an articulated bracket, 12 is an articulated support, 13 is an insulating pull rod, 14 is a moving contact rod, 15 is a fixed conductor, 16 is an input terminal, 17 is a thrust spring, 18 is a spring seat, 19 is a connecting hole, 20 is a connecting shaft, and 21 is a guide groove. DETAILED DESCRIPTION

[0025] The utility model includes a box body 2, in which a standard vacuum tube 1 having a fixed conductor 15 and a movable contact rod 14 is arranged. The movable contact rod 14 of the standard vacuum tube 1 is connected to a connecting soft wire 3. The output end of the connecting soft wire 3 and the input end 16 of the fixed conductor 15 are both arranged outside the box body 2. An electric push-pull device 8 is arranged in the box body 2. The telescopic rod of the electric push-pull device 8 is connected to an insulating pull rod 13 through a connecting piece 7. The insulating pull rod 13 is fixedly connected to the movable contact rod 14.

[0026] An insulating isolation plate 5 is provided in the box body 2, one side of the insulating isolation plate 5 is a non-electric operation compartment, and the other side is a charged compartment; the electric push-pull device 8 is provided in the non-electric operation compartment, and the connecting piece 7 passes through the insulating isolation plate 5 and is connected to the insulating pull rod 13 in the charged compartment.

[0027] The box body 2 is provided with a marking rod 6 with one end hinged and fixed, the middle part hinged to the connecting piece 7, and the other end extending out of the box body 2. The box body 2 is provided with a guide groove 21 corresponding to the marking rod 6.

[0028] The middle portion of the marking rod 6 and the connecting piece 7 are connected to each other via a connecting shaft 20 and a connecting hole 19 ; the inner diameter of the connecting hole 19 is larger than the outer diameter of the connecting shaft 20 .

[0029] A spring seat 18 is provided on both sides of the middle of the guide groove 21 in the box body 2, and a thrust spring 17 is provided on each of the two spring seats 18. The two thrust springs 17 are respectively connected to the two sides of the marking rod 6.

[0030] The electric push-pull device 8 is connected to a solar power source.

[0031] A network camera corresponding to the marking pole 6 is arranged outside the box 2 .

[0032] The electric push-pull device 8 is connected to the box body 2 via a hinged bracket 11 ; a position adjustment component 10 is also provided between the hinged bracket 11 and the box body 2 .

[0033] The electric push-pull device 8 can be connected to a control box (not shown) via a motor control line 9 , and the control equipment in the control box 2 and the communication module, remote viewing module, intelligent control module, etc. connected to the electric push-pull device 8 are connected to a control center.

[0034] Example: 1. Opening and Closing. The upper end of the fixed conductor 15 of the standard vacuum tube 1 extends out of the housing 2 and serves as a one-way access terminal. The lower end of the fixed conductor 15 serves as a contact point with the fixed conductor 15 within the standard vacuum tube 1. The upper end of the movable contact rod 14 corresponds to the lower end of the fixed conductor 15. The lower end of the movable contact rod 14 is located outside the standard vacuum tube 1 and connected to a flexible wire. When the movable contact rod 14 moves upward, the circuit is closed, and when it moves downward, the circuit is opened.

[0035] 2. The movable contact rod 14 is connected to the soft wire, and the soft wire is connected to the output end to form an output circuit.

[0036] 3. The up and down movement of the movable contact rod 14 is completed by the up and down movement of the electric push-pull device 8.

[0037] 4. The electric push-pull mechanism 8 has an independent solar photovoltaic 24V DC power supply, which is a long-life maintenance-free rechargeable lithium battery. The power battery can be installed in the control box and is not affected by power outages in the controlled circuit.

[0038] 5. In order to ensure that the movable contact rod 14 is stable during the up and down movement, a connecting piece 7 is installed at the lower end to ensure that the contact accurately moves the distance and is in close contact during the up and down movement. Although the movement trajectory of the middle of the marking rod 6 and the connecting piece 7 is an arc, due to the small movement stroke, the structural gap between the connecting hole 19 and the connecting shaft 20 of the utility model can meet the movement requirements of the connecting piece 7. In this embodiment, the connecting hole 19 is provided on the marking rod 6, and the connecting shaft 20 is provided on the connecting piece 7. The connecting hole 19 and the connecting shaft 20 can also be provided opposite to this embodiment.

[0039] 6. The movement range of the switch identification rod is limited by the guide groove 21 of the box body 2, which can reduce the distance of the electric push-pull device 8 during the pushing and pulling process, meeting the distance requirements of the standard vacuum tube 1.

[0040] 7. The push or pull force of the electric push-pull device 8 is greater than the self-closing force of the standard vacuum tube 1, and electric push and pull control can be achieved.

[0041] 8. The present invention is equipped with a thrust spring 17. Two thrust springs 17 are provided, symmetrically arranged on both sides of the marking rod 6. Together with the gap between the connecting hole 19 and the connecting shaft 20, the thrust springs 17 can increase the moving stroke of the marking rod 6 and fix the marking rod 6 in the open or closed position.

[0042] 9. When opening, the pulling force of the electric push-pull mechanism 8 is greater than the self-closing force of the standard vacuum tube 1, and the movable contact rod 14 is pulled to the locked position for opening. When closing, the pushing force of the micro push-pull mechanism is in the same direction as the self-closing force of the standard vacuum tube 1, pushing the movable contact rod 14 to the closed position.

[0043] 10. The insulating pull rod 13 isolates the charged body from the non-charged body, so that the micro-electric push-pull rod is in the non-charged area, ensuring its safe and reliable operation process.

[0044] 11. The adjusting screw of the position adjustment assembly 10 extends out of the box body 2 and is used to fix the hinged bracket 11 of the electric push-pull device 8. After being fixed, a fixed gap is left, which can be used to manually operate the moving contact rod 14 of the adjustment switch to form an opening or closing switch. This manual operation is only used as a backup plan in the event that the electric push-pull device 8 fails. In this embodiment, the position adjustment assembly 10 is a sleeve structure, with a nut fixed in one sleeve and a screw fixed in the other sleeve. The screw and the nut cooperate, and the screw is rotated to separate or engage with each other, thereby adjusting the overall length of the assembly. This is an existing technology that can be purchased.

[0045] 12. The marking rod 6 has the function of displaying the open or closed state of the switch. The position and state of the open or closed switch can be observed outside the box 2.

[0046] 13. A network camera can be installed on the outside of the box 2 to remotely monitor the operating status or maintenance of the switch, the maintenance process, and record the entire process.

[0047] It can be understood that the above specific description of the present invention is only used to illustrate the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Ordinary technicians in this field should understand that the present invention can still be modified or replaced by equivalents to achieve the same technical effects; as long as the use requirements are met, they are within the scope of protection of the present invention.

Claims

1. A 220V low-voltage electric vacuum load switch, comprising a housing (2), wherein a standard vacuum tube (1) having a fixed conductor (15) and a movable contact rod (14) is arranged in the housing (2), the movable contact rod (14) of the standard vacuum tube (1) being connected to a connecting soft wire (3), the output end of the connecting soft wire (3) and the input end (16) of the fixed conductor (15) being arranged outside the housing (2), characterized in that: An electric push-pull device (8) is provided in the box body (2), and the telescopic rod of the electric push-pull device (8) is connected to an insulating pull rod (13) through a connecting piece (7), and the insulating pull rod (13) is fixedly connected to the movable contact rod (14).

2. A 220V low-voltage electric vacuum load switch according to claim 1, characterized in that: An insulating isolation plate (5) is provided in the box body (2), one side of the insulating isolation plate (5) is a non-electrical operation compartment, and the other side is a live compartment; the electric push-pull device (8) is provided in the non-electrical operation compartment, and the connecting piece (7) passes through the insulating isolation plate (5) and is connected to the insulating pull rod (13) in the live compartment.

3. A 220V low-voltage electric vacuum load switch according to claim 2, characterized in that: The box body (2) is provided with a marking rod (6) with one end hinged and fixed, the middle portion hinged to the connecting piece (7), and the other end extending out of the box body (2). The box body (2) is provided with a guide groove (21) corresponding to the marking rod (6).

4. A 220V low-voltage electric vacuum load switch according to claim 3, characterized in that: The middle portion of the marking rod (6) and the connecting piece (7) are connected to each other via a connecting shaft (20) and a connecting hole (19); the inner diameter of the connecting hole (19) is larger than the outer diameter of the connecting shaft (20).

5. A 220V low-voltage electric vacuum load switch according to claim 4, characterized in that: A spring seat (18) is provided on both sides of the middle of the guide groove (21) in the box body (2), and a thrust spring (17) is provided on each of the two spring seats (18). The two thrust springs (17) are respectively connected to both sides of the marking rod (6).

6. A 220V low-voltage electric vacuum load switch according to claim 1, characterized in that: The electric push-pull device (8) is connected to a solar power source.

7. A 220V low-voltage electric vacuum load switch according to claim 1, characterized in that: A network camera corresponding to the marking pole (6) is provided outside the box (2).

8. The 220V low-voltage electric vacuum load switch according to claim 1, characterized in that: The electric push-pull device (8) is connected to the box body (2) via a hinged bracket (11); a position adjustment component (10) is also provided between the hinged bracket (11) and the box body (2).

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