A new on-off mechanism

Abstract

This utility model discloses a novel switching mechanism, belonging to the field of switches. It includes a fixed insulating plate with a first copper busbar mounted on it, one end of which is connected to an input wire. Above the first copper busbar is a movable insulating plate that can be raised and lowered. Below the movable insulating plate is a second copper busbar, one end of which is connected to an output wire that moves with the second copper busbar. The fixed insulating plate has two guide posts, respectively positioned on either side of the first copper busbar. The movable insulating plate has two guide holes, allowing it to slide and guide the two guide posts. An air-filled insulating fixing plate is fixedly connected to the top of the two guide posts. The air-filled insulating fixing plate and the movable insulating plate are connected by a bladder-type air spring, which can drive the movable insulating plate to rise and fall. This structure reduces the risk of arcing at the contact surface by minimizing overlapping contact areas, thus improving safety.

Description

Technical Field

[0001] This utility model relates to the field of switches, specifically to a novel on / off mechanism. Background Technology

[0002] Current high-current switching mechanisms often employ a combination of moving and stationary plates. Both moving and stationary plates are made of copper plates or copper busbars. Specifically, two stationary plates are often set on a fixed insulating plate, with a distance between them. One stationary plate is connected to a power source via a wire, and the other stationary plate is connected to the equipment that needs power via a wire. The wire connection points are located on the side furthest from the two stationary plates. The connection between the two stationary plates is achieved by using a moving plate that overlaps the two stationary plates simultaneously.

[0003] However, since the moving plate needs to overlap with two stationary plates, two overlapping contact surfaces are formed. Due to the large current passing through, arcing often occurs on the two overlapping contact surfaces, which poses a safety hazard in actual working scenarios. The above-mentioned unstable factors have been troubling operators.

[0004] To address the aforementioned problems, this utility model designs and manufactures a novel on / off mechanism to overcome the aforementioned deficiencies. Summary of the Invention

[0005] To address the problems existing in the prior art, this utility model provides a novel on / off mechanism that can reduce the risk of sparking at the contact surface and improve safety by reducing the overlap of the contact surface.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a novel on / off mechanism, comprising a fixed insulating plate, wherein a first copper busbar is mounted on the fixed insulating plate, and one end of the first copper busbar is connected to an incoming wire;

[0007] A movable insulating plate that can be raised and lowered is provided above the first copper busbar, and a second copper busbar is provided at the bottom of the movable insulating plate. One end of the second copper busbar is connected to an outgoing wire, which can move with the second copper busbar.

[0008] The fixed insulating plate is provided with two guide posts, which are respectively located on both sides of the first copper busbar. The movable insulating plate is provided with two guide holes, which allow the movable insulating plate to slide and engage with the two guide posts through the guide holes.

[0009] An airbag insulating fixing plate is fixedly connected to the top of the two guide columns. The airbag insulating fixing plate and the movable insulating plate are connected by a bladder-type air spring, which can drive the movable insulating plate to rise and fall.

[0010] Preferably, a compression spring is provided on the guide post between the movable insulating plate and the fixed insulating plate.

[0011] Preferably, one end of the first copper busbar is provided with a first connection hole, and the lead wire is connected to the first connection hole;

[0012] The second copper busbar has a second connection hole at one end, and the lead wire is connected to the second connection hole.

[0013] Preferably, a fixing insulating plate extends from the end of the first copper busbar with the first connecting hole;

[0014] A movable insulating plate extends from the end of the second copper busbar, which has a second connection hole.

[0015] Preferably, a first contact recess is provided above the other end of the first copper busbar, and the first contact recess is located directly above the fixed insulating plate; a second contact recess is provided below the other end of the second copper busbar, and the second contact recess is located directly below the movable insulating plate.

[0016] The first contact recess is located directly below the second contact recess.

[0017] Preferably, the bottom of the movable insulating plate is provided with a lower positioning groove, and the second copper busbar is installed in the lower positioning groove;

[0018] A lower PTFE plate is provided between the second copper busbar and the lower positioning groove.

[0019] Preferably, an upper positioning groove is provided above the fixed insulating plate, and the first copper busbar is installed in the upper positioning groove.

[0020] Preferably, the airbag insulating fixing plate has a pre-reserved air hole groove, which can communicate with the air vent of the airbag spring.

[0021] Preferably, an upper PTFE plate is provided between the bladder-type air spring and the movable insulating plate, and a shielding copper plate is provided between the upper PTFE plate and the bladder-type air spring.

[0022] Preferably, both the first and second copper busbars are made of 20mm thick T2 copper plates.

[0023] The advantages of this utility model are:

[0024] 1. In this utility model, the first and second copper busbars are directly connected for power supply, which is equivalent to omitting the traditional intermediate connecting plate, reducing one contact surface, avoiding the risk of arcing, and improving safety.

[0025] 2. The movable insulating plate of this utility model uses a bladder-type air spring as a power source, which is highly malleable and superior to the traditional cylinder hard-top structure. Moreover, it occupies less space than the cylinder drive method, reducing the requirements for environmental space. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a novel on / off mechanism;

[0027] Figure 2 This is a front view of a novel on / off mechanism;

[0028] Figure 3 A side view of a novel on / off mechanism;

[0029] Figure 4 A top view of a novel on / off mechanism;

[0030] Figure 5 This is a partial schematic diagram of part I of the present invention;

[0031] Figure 6 This is a partial schematic diagram of part II of the present invention.

[0032] In the diagram: 1. Fixed insulating plate; 2. First copper busbar; 3. Movable insulating plate; 4. Second copper busbar; 5. Guide post; 6. Airbag insulating fixing plate; 7. Airbag spring; 8. Compression spring; 9. Air hole groove; 10. Lower PTFE plate; 11. Shielding copper plate; 12. Upper PTFE plate; 21. First connecting hole; 22. First contact recessed surface; 41. Second connecting hole; 42. Second contact recessed surface. Detailed Implementation

[0033] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0034] like Figures 1 to 4 As shown, a novel switching mechanism includes a fixed insulating plate 1, on which a first copper busbar 2 is mounted. One end of the first copper busbar 2 is connected to an inlet wire, which can be connected to a power source.

[0035] Above the first copper busbar 2 is a movable insulating plate 3 that can be raised and lowered. At the bottom of the movable insulating plate 3 is a second copper busbar 4. One end of the second copper busbar 4 is connected to an outgoing wire. The outgoing wire can be connected to equipment that needs power. The outgoing wire needs to have a certain length of movable margin so that it can move with the second copper busbar 4.

[0036] Both the first copper busbar 2 and the second copper busbar 4 use 20mm thick T2 copper plates, which can handle a large current of 3200A. They also use high-strength insulation boards, so they can be fully adapted to high-voltage conditions even when the equipment's operating voltage is around 1000V.

[0037] The fixed insulating plate 1 of this utility model is provided with two guide posts 5, which are respectively arranged on both sides of the first copper busbar 2. The movable insulating plate 3 is provided with two guide holes, which allow the movable insulating plate 3 to slide and cooperate with the two guide posts 5 through the guide holes.

[0038] An airbag insulating fixing plate 6 is fixedly connected to the top of the two guide columns 5. The airbag insulating fixing plate 6 and the movable insulating plate 3 are connected by a bladder-type air spring 7. The bladder-type air spring 7 can drive the movable insulating plate 3 to rise and fall, thereby realizing the direct connection and power supply of the first copper busbar 2 and the second copper busbar 4. This is equivalent to omitting the traditional intermediate connecting plate, reducing a contact surface, avoiding the risk of fire, and improving safety.

[0039] In addition, the movable insulating plate 3 of this utility model uses a bladder-type air spring 7 as a power source, which is highly malleable and superior to the traditional cylinder hard-top structure. Moreover, it occupies less space than the cylinder drive method, reducing the requirements for environmental space.

[0040] The present invention has a compression spring 8 on the guide post 5 between the movable insulating plate 3 and the fixed insulating plate 1, so that the first copper busbar 2 and the second copper busbar 4 can be quickly separated when they need to be disconnected.

[0041] The first copper busbar 2 of this invention has a first connecting hole 21 at one end, through which an incoming wire is connected; the second copper busbar 4 has a second connecting hole 41 at one end, through which an outgoing wire is connected. A fixed insulating plate 1 extends from the end of the first copper busbar 2 with the first connecting hole 21, and a movable insulating plate 3 extends from the end of the second copper busbar 4 with the second connecting hole 41. This design prevents the incoming and outgoing wires from being placed between the first copper busbar 2 and the second copper busbar 4, thus avoiding interference with contact between them.

[0042] Preferably, a first contact recess 22 is provided above the other end of the first copper busbar 2. The first contact recess 22 is located directly above the fixed insulating plate 1. Preferably, a second contact recess 42 is provided below the other end of the second copper busbar 4. The second contact recess 42 is located directly below the movable insulating plate 3. The first contact recess 22 is located directly below the second contact recess 42, so that the contact area can be adjusted according to the two contact recesses.

[0043] like Figure 5 , Figure 6 As shown, the movable insulating plate 3 of this utility model has a lower positioning groove at its bottom, and the second copper busbar 4 is installed in the lower positioning groove. A lower PTFE plate 10 is provided between the second copper busbar 4 and the lower positioning groove. The fixed insulating plate 1 has an upper positioning groove above it, and the first copper busbar 2 is installed in the upper positioning groove.

[0044] An upper PTFE plate 12 is provided between the bladder-type air spring 7 and the movable insulating plate 3, and a shielding copper plate 11 is provided between the upper PTFE plate 12 and the bladder-type air spring 7.

[0045] The airbag insulating fixing plate 6 of this utility model has a reserved air hole groove 9, which can be connected to the air hole of the airbag spring 7 through the air hole groove 9.

[0046] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A new on-off mechanism characterized in that, Includes a fixed insulating plate (1), on which a first copper busbar (2) is installed, and one end of the first copper busbar (2) is connected to an inlet wire; The first copper busbar (2) is provided with a movable insulating plate (3) that can be raised and lowered. The bottom of the movable insulating plate (3) is provided with a second copper busbar (4). One end of the second copper busbar (4) is connected to an outgoing wire, which can move with the second copper busbar (4). The fixed insulating plate (1) is provided with two guide posts (5), and the two guide posts (5) are respectively set on both sides of the first copper busbar (2). The movable insulating plate (3) is provided with two guide holes, and the movable insulating plate (3) can slide and guide with the two guide posts (5) through the guide holes. An airbag insulating fixing plate (6) is fixedly connected to the top of the two guide columns (5). The airbag insulating fixing plate (6) and the movable insulating plate (3) are connected by a bladder-type air spring (7). The bladder-type air spring (7) can drive the movable insulating plate (3) to rise and fall.

2. A new on-off mechanism according to claim 1, characterized in that, A compression spring (8) is provided on the guide post (5) between the movable insulating plate (3) and the fixed insulating plate (1).

3. A new on-off mechanism according to claim 1, characterized in that, The first copper busbar (2) has a first connecting hole (21) at one end, and the lead wire is connected to the first connecting hole (21); The second copper busbar (4) has a second connection hole (41) at one end, and the lead wire is connected to the second connection hole (41).

4. A new on-off mechanism according to claim 3, characterized in that, A fixed insulating plate (1) extends from the end of the first copper busbar (2) which has a first connecting hole (21); A movable insulating plate (3) extends from the end of the second copper busbar (4) which has a second connection hole (41).

5. A new on-off mechanism according to claim 1, characterized in that, The first copper busbar (2) has a first contact recess (22) above the other end, which is located directly above the fixed insulating plate (1). The second copper busbar (4) has a second contact recess (42) below the other end, which is located directly below the movable insulating plate (3). The first contact recess (22) is located directly below the second contact recess (42).

6. A new on-off mechanism according to claim 1, characterized in that, The bottom of the movable insulating plate (3) is provided with a lower positioning groove, and the second copper busbar (4) is installed in the lower positioning groove; A lower PTFE plate (10) is provided between the second copper busbar (4) and the lower positioning groove.

7. A new on-off mechanism according to claim 1, characterized in that, The fixed insulating plate (1) is provided with an upper positioning groove, and the first copper busbar (2) is installed in the upper positioning groove.

8. A new on-off mechanism according to claim 1, characterized in that, The airbag insulating fixing plate (6) has a reserved air hole groove (9), which can be connected to the air hole of the airbag spring (7).

9. A new on-off mechanism according to claim 1, characterized in that, An upper PTFE plate (12) is provided between the bladder-type air spring (7) and the movable insulating plate (3), and a shielding copper plate (11) is provided between the upper PTFE plate (12) and the bladder-type air spring (7).

10. A novel on / off mechanism according to claim 1, characterized in that, The first copper busbar (2) and the second copper busbar (4) are both made of 20mm thick T2 copper plates.

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