Power supply recovery preset switch

Abstract

The utility model discloses a power supply recovery preset switch, and relates to the field of electrical protection and safety design. Comprising an electrified coil, a contact column, a guide rail, a sliding block switch and a reset spring. And the electrified coil and the contact column are fixed on one side of the shell through fixing sheets. The guide rail is trapezoidal, and a trapezoidal thin plate is fixed at the upper end of the guide rail. The slide block switch is of a trapezoidal structure, one side is fixed with the reset spring, the other side is fixed with a small iron sheet and a contact, the center is provided with a coaxial cylinder, the upper end is connected with the switch, and the lower end is connected with a trapezoidal body. The two ends of the reset spring are fixed to the other side of the sliding block switch and the other side of the shell respectively. The utility model has the advantage that a user or equipment can select whether to recover the power supply of a certain electrical circuit or not when the power is returned after the power is cut off. Potential safety hazards possibly caused by sudden starting of equipment after power recovery are avoided.

Description

Technical Field

[0001] This utility model relates to the field of electrical protection and safety design, specifically a power restoration preset switch. Background Technology

[0002] In power systems, especially in industrial control and distribution equipment, power restoration after a power outage is a common occurrence. In such cases, the automatic restoration of power to some high-power devices without warning could lead to overload or damage. For example, in industrial and commercial applications, such as large factories or data centers, it is crucial to ensure that all equipment does not immediately restart after power restoration. In home power systems, high-power appliances such as air conditioners and water heaters need to be prevented from starting suddenly after power is restored to avoid waste or damage. In medical settings, such as hospitals, it is essential to ensure that certain critical equipment (such as life support systems) does not start suddenly after power restoration, or to verify operation before starting to reduce operational errors. Therefore, it is necessary to design a power restoration preset switch to address these technical issues. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of the aforementioned technologies, the purpose of this utility model is to provide a power restoration preset switch to solve the problems of equipment safety and control after power restoration.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A power restoration preset switch includes an energized coil, contact posts, a guide rail, a slider switch, and a reset spring. The energized coil and contact posts are both fixed to one side of the housing by a fixing plate. The guide rail is a trapezoidal guide rail with a trapezoidal thin plate fixed to its upper end. The slider switch has a trapezoidal structure, with one side fixed to the reset spring and the other side fixed with a small iron piece and a contact. There is a coaxial cylinder in the center, with the upper end connected to the switch and the lower end connected to the trapezoidal body. The two ends of the reset spring are respectively fixed to the slider switch and the other side of the housing.

[0007] Furthermore, the slider switch has a trapezoidal structure, with one side fixed to a return spring and the other side fixed to a small iron piece and a contact point. A coaxial cylinder is located in the center, with the upper end connected to the switch and the lower end connected to the trapezoidal body. The slider switch can move laterally in the guide rail, with the coaxial cylinder moving laterally in the groove. Its advantage lies in that the slider switch not only can move laterally but also has a torsional function.

[0008] Furthermore, both the bottom of the energized coil and the contact post are connected to fixing plates and are fixed to one side of the housing by bolts. The other side of the contact post has a contact point aligned with the contact point on the slider switch, and the top of the energized coil is aligned with the small iron piece on the slider switch. The advantage is that when the slider switch moves laterally to the end of the slot, the small iron piece and the contact point respectively contact the energized coil and the contact post.

[0009] Furthermore, the guide rail is a trapezoidal guide rail, with a trapezoidal thin plate fixed to its upper end. Its advantage lies in restricting the longitudinal movement of the slider switch, while also limiting the slider switch after it has been twisted.

[0010] Furthermore, spring retaining plates are connected to both ends of the reset spring and are fixed to the other side of the slider switch and the housing respectively by bolts. The advantage of this is that the slider switch can automatically reset when no force is applied.

[0011] Furthermore, the trapezoidal thin plate has a small square opening at its upper end. Its advantage is that the slider switch can pass through horizontally, but is blocked by the trapezoidal thin plate when twisted.

[0012] Compared with existing technologies, the advantages of this invention are: during power restoration, the connection or disconnection of the line can be controlled according to the user's pre-set state, avoiding misoperation and equipment damage. It not only improves flexibility during the restoration process but also ensures safety after power restoration. Attached Figure Description

[0013] Figure 1 This is a half-sectional view of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the external structure of this utility model;

[0015] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the slider switch in this utility model;

[0017] Figure 5 This is a cross-sectional view of the energized coil in this utility model;

[0018] Figure 6 This is a cross-sectional view of the slider switch in this utility model;

[0019] In the diagram: 1. Guide rail; 2. Slider switch; 3. Slot; 4. Spring retaining plate; 5. Return spring; 6. Trapezoidal plate; 7. Contact post; 8. Fixing plate; 9. Energizing coil; 201. Switch; 202. Coaxial cylinder; 203. Trapezoidal body; 204. Small iron piece; 205. Contact. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] like Figure 1-6 As shown, a power restoration preset switch includes an energized coil 9, contact post 7, guide rail 1, slider switch 2, reset spring 5, and an external cuboid housing. The energized coil 9 and contact post 7 are both fixed to one side of the housing by fixing piece 8. The guide rail 1 is a trapezoidal guide rail with a trapezoidal thin plate 6 fixed at its upper end. The slider switch 2 has a trapezoidal structure, with one side fixed to the reset spring 5 and a small iron piece 204 and contact 205 fixed on the other side. There is a coaxial cylinder 202 in the center, with the upper end connected to the switch 201 and the lower end connected to the trapezoidal body 203. The two ends of the reset spring 5 are fixed to the slider switch 2 and the other side of the housing, respectively.

[0022] The slider switch 2 has a trapezoidal structure. One side is fixed to the return spring 5, and the other side is fixed with a small iron piece 204 and a contact 205. A coaxial cylinder 202 is located at the center, with the upper end connected to the switch 201 and the lower end connected to the trapezoidal body 203. The slider switch 2 can move laterally in the guide rail 1, with the coaxial cylinder 202 moving laterally in the groove 3. This allows the slider switch 2 to simultaneously perform lateral movement and torsional functions. Furthermore, due to the action of the coaxial cylinder 202, the trapezoidal body 203 connected to the lower end of the slider switch 2 rotates as the switch 201 rotates.

[0023] Both the energized coil 9 and the contact post 7 have fixing plates 8 at their bottom ends, which are fixed to one side of the housing by bolts. The other side of the contact post 7 has a contact, which is aligned with the contact 205 on the slider switch 2. The top of the energized coil 9 is aligned with the small iron piece 204 on the slider switch 2. When the slider switch 2 moves laterally to the end of the slot 3, the small iron piece 204 and the contact 205 contact the energized coil 9 and the contact post 7 respectively, the circuit is connected, and the energized coil generates magnetic force.

[0024] Guide rail 1 is a trapezoidal guide rail, with a trapezoidal thin plate 6 fixed at its upper end. This restricts the longitudinal movement of the slider switch and also hinders the twisting of the slider switch 2.

[0025] The return spring 5 is connected to spring fixing plates 4 at both ends and is fixed to the slider switch 2 and the other side of the housing by bolts. This allows the slider switch 2 to automatically reset when no force is applied.

[0026] The trapezoidal thin plate 6 has a small square opening at the top. This allows the slider switch 2 to pass through horizontally, but it is blocked by the trapezoidal thin plate 6 when twisted.

[0027] Working principle:

[0028] When power needs to be restored after a power outage, the circuit is in an open state. Pushing switch 201 to the end of slot 3 causes contact 205 on slider switch 2 to engage with contact post 7, connecting the circuit. Simultaneously, current flows through the energized coil 9, generating a magnetic force that attracts the small iron piece 204. After power is cut off, the current in the energized coil 9 disappears, and the magnetic force also disappears. Slider switch 2 returns to the starting point of slot 3 under the action of the return spring 5, disconnecting the circuit.

[0029] When power needs to be restored after a power outage, the circuit is energized. Pushing switch 201 to the end of slot 3 and turning it 90 degrees clockwise or counterclockwise causes contact 205 on slider switch 2 to engage with contact post 7, connecting the circuit. Simultaneously, current flows through the energized coil 9, generating a magnetic force that attracts the small iron piece 204. After power is cut off, the current in the energized coil 9 disappears, and the magnetic force also disappears. However, because the trapezoidal plate 6 fixed on the guide rail 2 obstructs the lower trapezoidal body 203 of slider switch 2, slider switch 2 remains at the end of slot 3 until power is restored.

[0030] It should be noted that in this document, the terms "upper," "lower," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

Claims

1. A power restoration preset switch, comprising an energized coil (9), a contact post (7), a guide rail (1), a slider switch (2), and a reset spring (5), characterized in that: The energized coil (9) and the contact post (7) are both fixed to one side of the housing by the fixing piece (8). The guide rail (1) is a trapezoidal guide rail with a trapezoidal thin plate (6) fixed at its upper end. The slider switch (2) is a trapezoidal structure with one side fixed to the reset spring (5) and the other side fixed with a small iron piece (204) and a contact (205). There is a coaxial cylinder (202) in the center, with the upper end connected to the switch (201) and the lower end connected to the trapezoidal body (203). The two ends of the reset spring (5) are respectively fixed to the slider switch (2) and the other side of the housing.

2. The power restoration preset switch according to claim 1, characterized in that: The slider switch (2) can move laterally in the guide rail (1), wherein the coaxial cylinder (202) moves laterally in the groove (3).

3. A power restoration preset switch according to claim 1, characterized in that: The bottom ends of the energized coil (9) and the contact post (7) are both connected to a fixing plate (8) and fixed to one side of the housing by bolts. The other side of the contact post (7) has a contact and is aligned with the contact (205) on the slider switch (2). The top end of the energized coil (9) is aligned with the small iron piece (204) on the slider switch (2).

4. A power restoration preset switch according to claim 1, characterized in that: The reset spring (5) is connected to spring fixing plates (4) at both ends and is fixed to the slider switch (2) and the other side of the housing by bolts.

5. A power restoration preset switch according to claim 1, characterized in that: The trapezoidal thin plate (6) has a small square opening at the top.

Images