Environment-friendly ring main unit isolation switch module

Abstract

The utility model discloses an environment-friendly ring main unit isolating switch module, which particularly relates to the field of isolating switches and comprises two mounting plates, an upper contact seat is arranged between the two mounting plates, a lower contact seat is arranged below the upper contact seat, an isolating main shaft is arranged between the upper contact seat and the lower contact seat, and an electrifying plate is arranged on one side of the isolating main shaft and one side of the lower contact seat. A plurality of moving contacts are arranged on the isolation main shaft, upper contacts and lower contacts corresponding to the moving contacts are arranged on the opposite sides of the upper contact seat and the lower contact seat, the lower ends of the plurality of moving contacts are rotatably connected with the lower contacts, and the upper ends of the moving contacts are movably connected with the upper contacts. According to the utility model, the isolation static contact and the installation frame can be rapidly disassembled and assembled, the efficiency of disassembling and assembling the isolation static contact is improved, the installation frame can be installed at the position of the limiting groove in the electrified plate at different positions, the position of the isolation static contact is changed, and the application range of the isolation static contact is enlarged.

Description

Technical Field

[0001] The utility model relates to the technical field of isolating switches, and more specifically, to an environmentally friendly ring network cabinet isolating switch module. Background Art

[0002] The environmentally friendly ring main unit (RMU) disconnect switch module is a device used in power systems, primarily for medium-voltage distribution networks. A RMU is a type of switchgear used in distribution networks, distributing and protecting power. The disconnect switch module is a crucial component of the RMU, providing a clear disconnect point during maintenance or replacement of electrical equipment, ensuring operator safety. The disconnect switch can be operated manually or electrically. When in the "off" position, it completely de-energizes the circuit, allowing maintenance work to proceed safely.

[0003] Existing isolating switches are usually composed of contacts and a power-carrying plate. The contacts include a moving contact, an upper contact and an isolating static contact. The isolating static contact is installed on the power-carrying plate. The operation of the moving contact is controlled by an operating mechanism. It is connected to the upper contact to cut off the power and connected to the isolating static contact to energize.

[0004] However, in actual use, since the isolating static contact is installed on the energized plate by bolts, when the isolating switch is used frequently, the isolating static contact is easily worn, thereby reducing the service life of the isolating static contact. As a result, when replacing the isolating static contact, the bolts need to be disassembled and assembled multiple times, which is time-consuming. In addition, the bolts are easily affected by the environment, leading to oxidation, which increases the difficulty of replacing the isolating static contact and affects the normal operation of the isolating switch. Utility Model Content

[0005] The utility model provides an environmentally friendly ring network cabinet isolating switch module, which aims to solve the problem that the existing isolating static contact is installed on the power supply plate by bolts. When the isolating switch is used frequently, it is easy to cause the isolating static contact to wear, thereby reducing the service life of the isolating static contact.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: an environmentally friendly ring network cabinet isolating switch module, comprising two mounting plates, an upper contact seat is provided between the two mounting plates, a lower contact seat is provided below the upper contact seat, an isolation main shaft is provided between the upper contact seat and the lower contact seat, and a power-on plate is provided on one side of the isolation main shaft and the lower contact seat; a plurality of moving contacts are provided on the isolation main shaft, and upper contacts and lower contacts corresponding to the moving contacts are provided on opposite sides of the upper contact seat and the lower contact seat, the lower ends of the plurality of moving contacts are rotatably connected to the lower contacts, and the upper ends of the moving contacts are movably connected to the upper contacts; an isolation static contact corresponding to the moving contact is provided on the power-on plate, a mounting frame is provided between the isolation static contact and the power-on plate, a connecting piece is provided between the isolation static contact and the mounting frame, a fixing piece is provided between the mounting frame and the power-on plate, the connecting piece is used to disassemble and assemble the isolation static contact, and the fixing piece is used to disassemble and assemble the mounting frame.

[0007] In a preferred embodiment, the connecting member includes two vertical plates, a groove is provided on the mounting frame, the two vertical plates are respectively arranged on the inner sides of the groove, the isolating static contact is located inside the groove, and vertical grooves corresponding to the vertical plates are provided on both sides, and multiple blocking blocks are slidingly provided on the opposite sides of the two vertical plates, the blocking blocks and the vertical plates are provided with a first spring, and blocking slots corresponding to the blocking blocks are provided on both sides of the two vertical slots, and the isolating static contact moves up and down to control the blocking blocks to be engaged or separated with the blocking slots.

[0008] In a preferred embodiment, the fixing member includes a limit plate, which is arranged on the side of the installation frame, and a limit groove corresponding to the limit plate is provided on the power-on plate. The limit plate is clamped with the limit groove, and a convex plate is slidingly provided on the limit plate, and a second spring is provided between the convex plate and the limit plate.

[0009] In a preferred embodiment, the top end of the limiting plate is located above the limiting groove, and the bottom end of the protruding plate is located below the limiting groove.

[0010] In a preferred embodiment, a push plate is provided below the limiting plate, a push rod is connected to the bottom of the push plate, the push rod is slidably connected to the power-carrying plate, and a third spring is provided between the push rod and the power-carrying plate.

[0011] In a preferred embodiment, spring plates are symmetrically provided on the inner side of the installation frame, and a fourth spring is provided between the spring plates and the installation frame.

[0012] The beneficial effects of the present invention are:

[0013] 1. The utility model provides a connecting piece to clamp the vertical groove on the isolating static contact with the vertical plate on the mounting frame, and clamp the clamping block with the clamping slot, so that the clamping block forms resistance between the isolating static contact and the mounting frame, which can improve the stability between the isolating static contact and the mounting frame. Conversely, the isolating static contact is pulled upward to remove the isolating static contact from the mounting frame, which can realize rapid disassembly and installation of the isolating static contact and improve efficiency.

[0014] 2. The utility model tilts the installation frame by setting a fixing piece, pushes the limit plate and the convex plate at the bottom into the limit groove at the same time, and the top end of the limit plate and the bottom end of the convex plate are larger than the limit groove, so that the limit plate and the power board can be snapped together, and the installation frame can be quickly installed. According to the size and position of the moving contact, the installation frame can be installed in the limit grooves at different positions of the power board, thereby increasing the scope of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 This is a schematic diagram of the structure of the movable contact, upper contact and lower contact of the utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the power-carrying plate and the isolating static contact of the utility model.

[0018] Figure 4 This is a schematic diagram of the limit plate and push plate structure of the utility model.

[0019] Figure 5 This is a schematic diagram of the mounting frame and the isolating static contact structure of the utility model.

[0020] Figure 6 This is a schematic diagram of the vertical plate and the card block structure of the utility model.

[0021] Figure 7 This is a schematic diagram of the structure of the limiting plate and the convex plate of the utility model.

[0022] The accompanying drawings are marked as follows: 1. Mounting plate; 2. Upper contact seat; 3. Lower contact seat; 4. Isolating main shaft; 5. Power-on plate; 6. Isolating static contact; 7. Mounting frame; 8. Connecting piece; 81. Vertical plate; 82. Vertical groove; 83. Block; 84. First spring; 85. Slot; 9. Fixing piece; 91. Limiting plate; 92. Protruding plate; 93. Second spring; 94. Push plate; 95. Push rod; 96. Third spring; 10. Moving contact; 11. Upper contact; 12. Lower contact; 13. Spring piece; 14. Fourth spring. DETAILED DESCRIPTION

[0023] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0024] Refer to the instruction manual Figures 1 to 7An environmentally friendly ring network cabinet isolation switch module includes two mounting plates 1, an upper contact seat 2 is provided between the two mounting plates 1, a lower contact seat 3 is provided below the upper contact seat 2, an isolation main shaft 4 is provided between the upper contact seat 2 and the lower contact seat 3, and a power supply plate 5 is provided on one side of the isolation main shaft 4 and the lower contact seat 3; a plurality of moving contacts 10 are provided on the isolation main shaft 4, and an upper contact 11 and a lower contact 1 corresponding to the moving contact 10 are provided on the opposite side of the upper contact seat 2 and the lower contact seat 3. 2. The lower ends of the multiple moving contacts 10 are rotatably connected to the lower contact 12, and the upper ends of the moving contacts 10 are movably connected to the upper contact 11; the energized plate 5 is provided with an isolating static contact 6 corresponding to the moving contact 10, a mounting frame 7 is provided between the isolating static contact 6 and the energized plate 5, a connecting member 8 is provided between the isolating static contact 6 and the mounting frame 7, and a fixing member 9 is provided between the mounting frame 7 and the energized plate 5. The connecting member 8 is used for disassembling and assembling the isolating static contact 6, and the fixing member 9 is used for disassembling and assembling the mounting frame 7.

[0025] In the above embodiment, the moving contact 10 is connected to the upper contact 11 to achieve a power-off effect, and the moving contact 10 is connected to the isolating static contact 6 to achieve a power-on effect, isolating the power supply to ensure the safety of maintenance personnel and equipment.

[0026] It should be noted that rotating the isolation main shaft 4 drives the moving contact 10 to rotate, the bottom end of the moving contact 10 rotates along the lower contact 12, the top end of the moving contact 10 separates from the upper contact 11, and contacts the isolation static contact 6 on the power-on plate 5 to realize the power-on operation.

[0027] Since friction is generated between the isolating static contact 6 and the moving contact 10, the power-on effect will be affected after long-term use. The isolating static contact 6 is installed inside the mounting frame 7 through the connecting piece 8, and the mounting frame 7 is then installed on the power-on board 5 through the fixing piece 9. Therefore, not only the isolating static contact 6 can be replaced, but also the position of the isolating static contact 6 can be replaced by changing the position of the mounting frame 7. Therefore, the position of the isolating static contact 6 can be adjusted according to the position of the moving contact 10, thereby increasing the practicality of the isolating static contact 6.

[0028] Further, refer to the instructions attached Figure 5 and Figure 6 The connecting member 8 includes two vertical plates 81, and a groove is provided on the mounting frame 7. The two vertical plates 81 are respectively arranged on the inner side of the groove. The isolating static contact 6 is located inside the groove, and vertical grooves 82 corresponding to the vertical plates 81 are provided on both sides. A plurality of blocks 83 are slidingly provided on the opposite side of the two vertical plates 81. The blocks 83 and the vertical plates 81 are provided with a first spring 84. A card slot 85 corresponding to the card block 83 is provided on both sides of the two vertical slots 82. The isolating static contact 6 moves up and down to control the card block 83 to be engaged or separated with the card slot 85.

[0029] It should be noted that the isolating static contact 6 is placed in the groove on the surface of the mounting frame 7 so that the vertical plate 81 is engaged with the vertical groove 82. When the vertical groove 82 moves along the vertical plate 81, a thrust is formed on the blocking block 83. Since the cross section of the blocking block 83 is T-shaped, the blocking block 83 can be pushed back to the inside of the vertical plate 81, compressing the first spring 84. When the blocking block 83 is parallel to the blocking groove 85, the elasticity of the first spring 84 pushes the blocking block 83 out and engages with the blocking groove 85, so that the blocking block 83 forms a resistance between the isolating static contact 6 and the mounting frame 7, which can further improve the stability between the isolating static contact 6 and the mounting frame 7. Conversely, the isolating static contact 6 is pulled upward to retract the blocking block 83, and the isolating static contact 6 can be removed from the mounting frame 7, thereby realizing the replacement of the isolating static contact 6.

[0030] Further, refer to the instructions attached Figure 4 and Figure 7 The fixing member 9 includes a limit plate 91, which is arranged on the side of the installation frame 7. A limit groove corresponding to the limit plate 91 is provided on the power-on plate 5. The limit plate 91 is engaged with the limit groove. A convex plate 92 is slidingly provided on the limit plate 91, and a second spring 93 is provided between the convex plate 92 and the limit plate 91.

[0031] In the above embodiment, a plurality of limiting grooves can be provided, and the number and position of the isolating static contacts 6 on the energized plate 5 can be changed according to the number of the moving contacts 10 or the position of the moving contacts 10 .

[0032] Furthermore, the top end of the limiting plate 91 is located above the limiting groove, and the bottom end of the protruding plate 92 is located below the limiting groove.

[0033] In the above embodiment, the second spring 93 is used to push the protruding plate 92 out of the limiting plate 91 to its maximum extent, and the top of the limiting plate 91 and the bottom of the protruding plate 92 are both larger than the size of the limiting slot.

[0034] It should be noted that when installing the mounting frame 7, the mounting frame 7 is tilted at a certain angle so that the top of the limit plate 91 on the mounting frame 7 enters the limit groove, and then the limit plate 91 and the convex plate 92 at the bottom are pushed into the limit groove at the same time. Since the cross section of the convex plate 92 is inclined, when the convex plate 92 contacts the limit groove, the convex plate 92 is retracted into the inside of the limit plate 91 under pressure, causing the second spring 93 to be compressed. When the limit plate 91 completely enters the limit groove, the convex plate 92 is pushed out by the elasticity of the second spring 93. With the top of the limit plate 91 and the bottom of the convex plate 92 being larger than the limit groove, the limit plate 91 can be snapped into the power-on plate 5, and the mounting frame 7 can be quickly installed.

[0035] Furthermore, a push plate 94 is provided below the limiting plate 91 , and a push rod 95 is connected to the bottom of the push plate 94 . The push rod 95 is slidably connected to the power-carrying plate 5 , and a third spring 96 is provided between the push rod 95 and the power-carrying plate 5 .

[0036] It should be noted that when disassembling the mounting frame 7, the push rod 95 is pushed to drive the push plate 94 to move, so that the third spring 96 is compressed, and the protruding plate 92 is pushed back to the inside of the limit plate 91, thereby releasing the connection between the bottom of the limit plate 91 and the power plate 5, and then the mounting frame 7 is pulled to tilt, and the limit plate 91 is moved out of the limit groove, so that the mounting frame 7 can be quickly disassembled.

[0037] There are two limit rods connected to the bottom of the push plate 94. The two limit rods are respectively located on both sides of the push rod 95 and are slidably connected to the power plate 5. When the push plate 94 is pushed to move, the limit rods can limit the push plate 94 and make it move vertically.

[0038] Further, refer to the instructions attached Figure 3 A spring piece 13 is symmetrically provided on the inner side of the installation frame 7 , and a fourth spring 14 is provided between the spring piece 13 and the installation frame 7 .

[0039] It should be noted that when the moving contact 10 is connected to the isolating static contact 6 and is located inside the mounting frame 7, the spring piece 13 on the inside of the mounting frame 7 contacts the moving contact 10 under the elastic force of the fourth spring 14 and forms a certain pressure, which can fix the moving contact 10 inside the mounting frame 7, thereby increasing the stability of the moving contact 10.

[0040] Working principle: First, the isolating main shaft 4 is rotated to separate the moving contact 10 from the upper contact 11, and then moved to the inside of the mounting frame 7 on the energized plate 5, and connected to the isolating static contact 6 to realize the energized operation.

[0041] When the moving contact 10 is connected to the isolating static contact 6 , the elastic piece 13 on the inner side of the mounting frame 7 cooperates with the fourth spring 14 to fix the moving contact 10 inside the mounting frame 7 , thereby increasing the stability of the moving contact 10 .

[0042] When the isolating static contact 6 needs to be disassembled, the isolating static contact 6 can be replaced by pulling the isolating static contact 6 to separate the block 83 from the slot 85, and then the protruding plate 92 is retracted to the inside of the limit plate 91 by pushing the push plate 94, and the mounting frame 7 is removed from the power-carrying plate 5. Not only can the isolating static contact 6 be replaced separately, but the mounting frame 7 can also be installed in the limit slots on the power-carrying plate 5 at different positions to change the position of the isolating static contact 6.

[0043] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. An environmentally friendly ring main unit isolation switch module, characterized by: It comprises two mounting plates (1), an upper contact seat (2) is provided between the two mounting plates (1), a lower contact seat (3) is provided below the upper contact seat (2), an isolation main shaft (4) is provided between the upper contact seat (2) and the lower contact seat (3), and a power supply plate (5) is provided on one side of the isolation main shaft (4) and the lower contact seat (3); The isolation main shaft (4) is provided with a plurality of moving contacts (10), and an upper contact (11) and a lower contact (12) corresponding to the moving contacts (10) are provided on opposite sides of the upper contact seat (2) and the lower contact seat (3), the lower ends of the plurality of moving contacts (10) are rotatably connected to the lower contacts (12), and the upper ends of the moving contacts (10) are movably connected to the upper contacts (11); An isolating static contact (6) corresponding to the moving contact (10) is provided on the energizing plate (5); a mounting frame (7) is provided between the isolating static contact (6) and the energizing plate (5); a connecting piece (8) is provided between the isolating static contact (6) and the mounting frame (7); a fixing piece (9) is provided between the mounting frame (7) and the energizing plate (5); the connecting piece (8) is used for disassembling the isolating static contact (6); and the fixing piece (9) is used for disassembling the mounting frame (7).

2. The environmentally friendly ring main unit isolating switch module according to claim 1, characterized in that: The connecting member (8) includes two vertical plates (81), the mounting frame (7) is provided with a groove, the two vertical plates (81) are respectively arranged on the inner side of the groove, the isolating static contact (6) is located inside the groove, and vertical grooves (82) corresponding to the vertical plates (81) are provided on both sides. A plurality of clamping blocks (83) are slidably provided on opposite sides of the two vertical plates (81), the clamping blocks (83) and the vertical plates (81) are provided with first springs (84), and clamping grooves (85) corresponding to the clamping blocks (83) are provided on both sides of the two vertical grooves (82). The isolating static contact (6) moves up and down to control the clamping blocks (83) and the clamping grooves (85) to be connected or separated.

3. The environmentally friendly ring main unit isolating switch module according to claim 2, characterized in that: The fixing member (9) includes a limiting plate (91), the limiting plate (91) is arranged on the side of the installation frame (7), the power plate (5) is provided with a limiting groove corresponding to the limiting plate (91), the limiting plate (91) is engaged with the limiting groove, a convex plate (92) is slidably provided on the limiting plate (91), and a second spring (93) is provided between the convex plate (92) and the limiting plate (91).

4. The environmentally friendly ring main unit isolating switch module according to claim 3, characterized in that: The top end of the limiting plate (91) is located above the limiting slot, and the bottom end of the convex plate (92) is located below the limiting slot.

5. The environmentally friendly ring main unit isolating switch module according to claim 4, characterized in that: A push plate (94) is provided below the limit plate (91), and a push rod (95) is connected to the bottom of the push plate (94). The push rod (95) is slidably connected to the power-carrying plate (5), and a third spring (96) is provided between the push rod (95) and the power-carrying plate (5).

6. The environmentally friendly ring main unit isolating switch module according to claim 5, characterized in that: A spring piece (13) is symmetrically provided on the inner side of the installation frame (7), and a fourth spring (14) is provided between the spring piece (13) and the installation frame (7).

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