A wired structure for a power switch

Abstract

This utility model provides a wire-fixing structure for a power switch, belonging to the field of power switch technology. It includes a switch body with a wire groove on its side and a bolt threaded to the top. It also includes a wire-fixing mechanism, comprising a lower plate fixed to the bottom of the inner wall of the wire groove, electrically connected to the switch body, and a limiting block fixed to the top of the lower plate for positioning the wire. By setting an upper pressure seat and a recessed portion, when fixing the wire, the bent wire is inserted into the wire groove and limited by the limiting block. Rotating the bolt causes the upper pressure seat to move downwards and press against the wire, thus fixing the wire. Simultaneously, after installation, the upper pressure seat increases the contact area between the bolt and the wire, and the limiting block limits the bending of the wire. The dual cooperation of the upper pressure seat and the limiting block greatly improves the stability of the wire fixation.

Description

Technical Field

[0001] This utility model relates to the field of power switch technology, and in particular to a wire-fixed structure for power switches. Background Technology

[0002] A power switch is a switch used to control the on / off state of a circuit. Wires are connected to the power switch and the device respectively. By turning the power switch on or off, the device is controlled to start or stop. When connecting the wires to the power switch, insert the wires into the wire slot of the power switch, and then tighten the bolts so that the bolts firmly press against the wires, thus completing the connection between the wires and the power switch.

[0003] A search revealed that Chinese patent CN219575959U discloses a pre-fixed wire switch accessory, relating to switch accessory technology. The accessory includes a housing and bolts. The housing has several inlet holes and threaded holes communicating with these holes. The bolts are threaded into these threaded holes. A limiting member is installed within each inlet hole to control its opening and closing. When a wire is present in the inlet hole and moves in the opposite direction, the limiting member prevents the wire from detaching from the inlet hole. This design allows for the insertion of a bent wire into the inlet hole without obstructing its entry, but the limiting member prevents the bent wire from easily detaching after insertion.

[0004] The aforementioned patent uses a bolt tightening method to hold the bent wire in place. However, the end of the bolt is usually small, resulting in a small contact area between the bolt and the wire, and the stability of the wire fixation needs to be improved. Therefore, this application provides a wire fixing structure for a power switch to meet the requirements. Summary of the Invention

[0005] This utility model provides a wire fixing structure for power switches to solve the problem that the fixing stability of wires needs to be improved.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A wire-fixing structure for a power switch includes a switch body, a wire groove formed on the side of the switch body, and a bolt threadedly connected to the top of the switch body. It also includes:

[0008] The wire fixing mechanism includes a lower plate fixed to the bottom of the inner wall of the wire groove, the lower plate being electrically connected to the switch body, a limit block fixed to the top of the lower plate for positioning the wire, and an upper pressure seat movably connected to the bottom of the bolt, which can move up and down along the inner wall of the wire groove. A recess is provided at the bottom of the upper pressure seat corresponding to the position of the limit block.

[0009] When securing the wire, insert the bent wire into the wire groove and limit it with the limiting block, then rotate the bolt to move the upper pressure seat down and press it onto the wire.

[0010] Preferably, guide strips are fixed on opposite sides of the inner wall of the wire groove, and the guide strips have a second inclined surface on their side, which is used to guide the wire when it is inserted into the wire groove.

[0011] Preferably, the top of the limiting block is provided with an inclined surface, which is used to guide the bent wire through the limiting block.

[0012] Preferably, the side of the limiting block has a curved surface that fits into the bend of the wire.

[0013] Preferably, the bottom of the upper pressure seat is bent with a bend, and a spring piece is fixed at the bend. After the bolt is tightened and the upper pressure seat moves down to press on the wire, the spring piece deforms. When the bolt is loosened, the upper pressure seat moves up under the elastic force of the spring piece.

[0014] Preferably, the bottom of the spring sheet has a bent portion.

[0015] Preferably, the curved portion is arc-shaped, and when the upper pressure seat moves down, it causes the arc-shaped curved portion to contact the top of the upper plate.

[0016] Preferably, the inner wall of the recess is provided with a guide surface.

[0017] Compared with the prior art, this utility model has at least the following beneficial effects:

[0018] In the above solution, by setting an upper pressure seat and a recessed part, when fixing the wire, the bent wire is inserted into the wire groove and limited by the limiting block. Then, the bolt is rotated to make the upper pressure seat move down and press on the wire, thereby realizing the installation and fixing of the wire. At the same time, after installation and fixing, the upper pressure seat is used to increase the contact area between the bolt and the wire, and the limiting block is used to limit the bent wire. Through the dual cooperation of the upper pressure seat and the limiting block, the fixing stability of the wire is greatly improved.

[0019] By setting a limiting block, an inclined surface, and a curved surface, during the initial positioning of the wire, the bent part of the wire is inserted into the wire groove and guided by the inclined surface on the limiting block. The bent part of the wire is then hung on the curved surface on the side of the limiting block. The curved surface increases the connection stability between the limiting block and the bent part of the wire. At the same time, the bent part of the wire is guided by the inclined surface during the initial positioning of the wire, which facilitates the initial positioning of the wire by the limiting block.

[0020] By incorporating a spring clip and a curved section, when fixing the wire, tightening the bolt causes the upper pressure seat to move downwards and press against the wire. The spring clip follows the upper pressure seat downwards. When the curved section of the spring clip contacts the lower plate, the spring clip deforms, thus preventing it from interfering with the wire's fixation. Simultaneously, the curved section of the spring clip contacts the lower plate, improving the smoothness of its sliding on the lower plate during deformation, making the deformation more stable and smooth. When disassembling the wire, loosening the bolt prevents it from pressing against the upper pressure seat. After loosening the bolt, the bolt easily separates from the upper pressure seat. At this point, thanks to the spring clip design, after the bolt separates from the upper pressure seat, the upper pressure seat moves upwards under the elastic force of the spring clip. This upward movement exposes the position of the limiting block on the lower plate, providing operational space for subsequent wire re-fixing, thus facilitating subsequent wire re-fixing. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a three-dimensional structural diagram of the limiting block of this utility model;

[0023] Figure 3 This is a cross-sectional view of the bolt section of this utility model;

[0024] Figure 4 This is a three-dimensional structural diagram of the upper pressure seat of this utility model;

[0025] Figure 5 This is a cross-sectional view of the recessed portion of this utility model;

[0026] Figure 6 This is a three-dimensional structural diagram of the spring clip of this utility model;

[0027] Figure 7 This is a three-dimensional structural diagram of the guiding surface of this utility model.

[0028] In the diagram: 1. Switch body; 2. Bolt; 3. Wire groove; 4. Wire fixing mechanism; 5. Lower plate; 6. Limit block; 7. Inclined surface one; 8. Curved surface; 9. Upper pressure seat; 10. Recessed part; 11. Guide surface; 12. Bending part; 13. Spring piece; 14. Bending part; 15. Guide bar; 16. Inclined surface two.

[0029] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0030] The following is a detailed description of a wire-fixed structure for a power switch provided by this utility model, in conjunction with the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0031] like Figures 1-7 As shown, an embodiment of this utility model provides a wire fixing structure for a power switch, including a switch body 1, a wire groove 3 formed on the side of the switch body 1, and a bolt 2 threadedly connected to the top of the switch body 1, and further including:

[0032] The wire fixing mechanism 4 includes a lower plate 5 fixed to the bottom of the inner wall of the wire groove 3. The lower plate 5 is electrically connected to the switch body 1. A limit block 6 is fixed to the top of the lower plate 5. The limit block 6 is used for positioning the wire. The bottom of the bolt 2 is movably connected to an upper pressure seat 9 that can move up and down along the inner wall of the wire groove 3. A recess 10 is provided at the bottom of the upper pressure seat 9 corresponding to the position of the limit block 6.

[0033] During wire fixing, the bent wire is inserted into the wire groove 3 and then limited by the limiting block 6. The bolt 2 is rotated to make the upper pressure seat 9 move down and press on the wire. The lower plate 5 is fixed at the bottom of the wire groove 3 to provide stable support for the limiting block 6. The limiting block 6 can initially position the bent wire to prevent the wire from shifting before fixing. The bolt 2 moves up and down through the threaded connection, which in turn drives the upper pressure seat 9 to move along the inner wall of the wire groove 3. The upper pressure seat 9 increases the contact area between the bolt 2 and the wire, avoiding damage to the wire caused by single-point pressure from the bolt 2. The recessed part 10 can accommodate the limiting block 6 to ensure that the upper pressure seat 9 can fully cover the contact area between the wire and the limiting block 6 when it moves down. The upper pressure seat 9 and the lower plate 5 work together to firmly fix the wire, achieving a dual guarantee of initial positioning and strong fixing, preventing the wire from loosening and affecting the conductivity stability of the switch body 1.

[0034] like Figures 1-3 As shown in this embodiment, guide strips 15 are fixed on opposite sides of the inner wall of the wire groove 3. The side of the guide strip 15 is provided with a second inclined surface 16. The second inclined surface 16 is used to guide the wire when it is inserted into the wire groove 3. The guide strip 15 is fixed to the inner wall of the wire groove 3, and the second inclined surface 16 on its side forms a flared guide structure. When the wire is inserted into the wire groove 3, it is not necessary to precisely align the opening of the wire groove 3. The second inclined surface 16 will automatically guide the wire to slide towards the center of the wire groove 3, avoiding collision and jamming between the edge of the wire and the inner wall of the wire groove 3 or the spring piece 13, and reducing the insertion resistance.

[0035] like Figure 4As shown in this embodiment, the top of the limiting block 6 is provided with a slope 7. The slope 7 is used to guide the bent wire through the limiting block 6. The slope 7 at the top of the limiting block 6 provides a smooth contact path for the bent wire. After the wire is inserted into the wire groove 3, its bend can smoothly slide across the limiting block 6 along the slope 7, avoiding rigid collision between the bend and the top of the limiting block 6, which would cause the wire to deform.

[0036] like Figure 6 As shown in this embodiment, the side of the limiting block 6 is provided with a curved surface 8, which fits with the bend of the wire. The shape of the curved surface 8 is adapted to the bend of the wire, which can increase the contact area between the two. Compared with planar contact, it can improve the tightness of the fit between the bend of the wire and the limiting block 6, and enhance the stability of the initial positioning.

[0037] like Figure 4 , Figure 6 and Figure 7 As shown in this embodiment, the bottom of the upper pressure seat 9 is bent with a bending part 12, and a spring piece 13 is fixed at the bending part 12. After tightening the bolt 2, the upper pressure seat 9 moves down and presses against the wire, and the spring piece 13 deforms. When the bolt 2 is loosened, the upper pressure seat 9 moves up under the elastic force of the spring piece 13. The bending part 12 provides a mounting carrier for the spring piece 13, ensuring a stable connection between the spring piece 13 and the upper pressure seat 9. When the bolt 2 is tightened, the upper pressure seat 9 moves down, causing the spring piece 13 to contact the lower plate 5, and the spring piece 13 is squeezed. The pressure causes deformation, and the deformation process does not interfere with the fixing pressure of the upper pressure seat 9 on the wire. After loosening the bolt 2, the downward pressure of the bolt 2 on the upper pressure seat 9 disappears, the deformed spring 13 releases its elastic force, and pushes the upper pressure seat 9 to move upward automatically, so that the upper pressure seat 9 is separated from the wire. There is no need to manually pry the upper pressure seat 9, which simplifies the wire disassembly operation. At the same time, after the upper pressure seat 9 moves upward, the limiting block 6 can be exposed, providing sufficient operating space for subsequent reinsertion of the wire and re-fixing, improving the convenience of repeated wire fixing.

[0038] like Figure 4 , Figure 6 and Figure 7 As shown in this embodiment, the bottom of the spring piece 13 is bent with a bending portion 14. The bending portion 14 can change the contact shape between the spring piece 13 and the lower plate 5, so that when the spring piece 13 moves down, it can make smooth contact with the lower plate 5 through the bending portion 14, and avoid the sharp end of the spring piece 13 scratching the surface of the lower plate 5.

[0039] like Figure 4 , Figure 6 and Figure 7As shown, in this embodiment, the curved part 14 is arc-shaped. When the upper pressure seat 9 moves down, it causes the arc-shaped curved part 14 to contact the top of the upper plate. The surface of the arc-shaped curved part 14 is smooth. When the upper pressure seat 9 moves down, the arc-shaped surface contacts the top of the lower plate 5, which can greatly reduce the frictional resistance, so that the spring piece 13 can move down smoothly with the upper pressure seat 9 and deform evenly, avoiding the spring piece 13 from getting stuck or the surface of the lower plate 5 from excessive wear due to excessive friction.

[0040] like Figure 5 As shown in this embodiment, the inner wall of the recess 10 is provided with a guide surface 11. The guide surface 11 has an inclined structure. If there is a slight deviation during the downward movement of the upper pressure seat 9, the guide surface 11 can guide the limiting block 6 to smoothly enter the recess 10, avoiding rigid collision between the upper pressure seat 9 and the limiting block 6, which would cause deformation or damage to both. At the same time, the guide surface 11 can ensure that the recess 10 accurately accommodates the limiting block 6, so that the bottom of the upper pressure seat 9 can fully fit the surface of the wire, avoiding the upper pressure seat 9 from being unable to press on the wire locally due to the obstruction of the limiting block 6, ensuring that the wire is fixed evenly and firmly, and preventing the wire from becoming loose locally, which would affect the conductivity.

[0041] Working principle: First, the wire is inserted and initially positioned. The inclined surface 16 on the guide strip 15 fixed to the inner wall of the wire groove 3 can guide the wire to be smoothly inserted into the wire groove 3, avoiding contact between the wire and the spring piece 13 when inserted. The wire needs to be bent before insertion. After insertion into the wire groove 3, the bent part is aligned with the limiting block 6 at the top of the lower plate 5. The inclined surface 7 at the top of the limiting block 6 can guide the bent part of the wire to smoothly pass through the limiting block 6, so that the bent part fits with the curved surface 8 on the side of the limiting block 6. The matching design of the curved surface 8 and the bent part of the wire can increase the contact area between the two and prevent the wire from shifting before subsequent fixing, thus completing the initial positioning of the wire.

[0042] Next, the wire fixing operation is started. When the bolt 2 is turned, the bolt 2 rotates and moves downward. The bolt 2 drives the upper pressure seat 9 to move down along the inner wall of the wire groove 3. The bottom of the upper pressure seat 9 has a recess 10 corresponding to the position of the limiting block 6. The guide surface 11 on the inner wall of the recess 10 can prevent the upper pressure seat 9 from colliding with the limiting block 6 when it moves down, ensuring that the upper pressure seat 9 presses accurately on the wire. When the upper pressure seat 9 contacts the wire and continues to move down, the recess 10 can accommodate the limiting block 6, so that the upper pressure seat 9 can fully cover the contact area between the wire and the limiting block 6. The pressure of the upper pressure seat 9 firmly fixes the wire between the lower plate 5 and the upper pressure seat 9. The upper pressure seat 9 increases the contact area between the bolt 2 and the wire, avoiding damage to the wire by applying pressure to a single point with the bolt 2. The limiting block 6 forms a limit on the wire from below. The two work together to achieve stable fixing of the wire and prevent the wire from loosening.

[0043] During the fixing process, the spring piece 13 fixed by the bent part 12 at the bottom of the upper pressure seat 9 plays a synchronous role. When the upper pressure seat 9 moves down, the arc-shaped bent part 14 at the bottom of the spring piece 13 contacts the top of the lower plate 5. As the upper pressure seat 9 continues to move down, the bent part 14 is squeezed, causing the spring piece 13 to undergo elastic deformation. During the deformation process, the arc design can reduce the frictional resistance between the spring piece 13 and the lower plate 5, ensuring that the spring piece 13 deforms smoothly and will not interfere with the fixing pressure of the upper pressure seat 9 on the wire.

[0044] When it is necessary to remove the wire, rotate the bolt 2 in the opposite direction to move it upward along the thread. The downward pressure of the bolt 2 on the upper pressure seat 9 gradually disappears. At this time, the deformed spring piece 13 releases its elastic force. Through the reaction force of the arc-shaped bending part 14 on the lower plate 5, it pushes the upper pressure seat 9 upward along the inner wall of the wire groove 3, so that the upper pressure seat 9 is separated from the wire and moves the upper pressure seat 9 above the limiting block 6. After the upper pressure seat 9 moves upward, the limiting block 6 at the top of the lower plate 5 is fully exposed. At this time, the wire can be moved upward to separate the wire from the limiting block 6 and then the wire can be pulled out from the wire groove 3. At the same time, the complete exposure of the limiting block 6 provides sufficient operating space for subsequent reinsertion of the wire and re-fixing of the wire. There is no need to manually pry the upper pressure seat 9, which simplifies the preparation process for re-fixing the wire and improves the convenience of operation.

[0045] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A wire-fixing structure for a power switch, comprising a switch body (1), wherein a wire groove (3) is provided on the side of the switch body (1), and a bolt (2) is threadedly connected to the top of the switch body (1), characterized in that, Also includes: The wire fixing mechanism (4) includes a lower plate (5) fixed to the bottom of the inner wall of the wire groove (3), the lower plate (5) is electrically connected to the switch body (1), a limit block (6) is fixed to the top of the lower plate (5), the limit block (6) is used for positioning the wire, and an upper pressure seat (9) that can move up and down along the inner wall of the wire groove (3) is movably connected to the bottom of the bolt (2). A recess (10) is provided at the bottom of the upper pressure seat (9) corresponding to the position of the limit block (6). When securing the wire, insert the bent wire into the wire groove (3) and limit it through the limiting block (6), then rotate the bolt (2) to make the upper pressure seat (9) move down and press on the wire.

2. The wiring structure for a power switch according to claim 1, characterized in that, Guide strips (15) are fixed on opposite sides of the inner wall of the wire groove (3). The guide strips (15) have a second inclined surface (16) on their side. The second inclined surface (16) is used to guide the wire when it is inserted into the wire groove (3).

3. The wiring structure for a power switch according to claim 1, characterized in that, The top of the limiting block (6) is provided with a slope (7), which is used to guide the bent wire through the limiting block (6).

4. The wiring structure for a power switch according to claim 1, characterized in that, The side of the limiting block (6) is provided with a curved surface (8), which fits against the bend of the wire.

5. The wiring structure for a power switch according to claim 1, characterized in that, The bottom of the upper pressure seat (9) is bent with a bent part (12), and a spring piece (13) is fixed at the bent part (12). After the upper pressure seat (9) is moved down and pressed on the wire by tightening the bolt (2), the spring piece (13) deforms. When the bolt (2) is loosened, the upper pressure seat (9) moves up under the elastic force of the spring piece (13).

6. The wiring structure for a power switch according to claim 5, characterized in that, The bottom of the spring piece (13) is bent with a curved part (14).

7. The wiring structure for a power switch according to claim 6, characterized in that, The curved part (14) is arc-shaped, and when the upper pressure seat (9) moves down, it causes the arc-shaped curved part (14) to contact the top of the upper plate.

8. The wiring structure for a power switch according to claim 1, characterized in that, The inner wall of the recess (10) is provided with a guide surface (11).

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