CN221708575U - Magnetic control switch - Google Patents

Abstract

A magnetically controlled switch, used in the field of switch technology, comprises a base, a first closed shell, a first copper sheet, a second copper sheet, the first soft iron, and a magnetic device; the first closed shell is a shell-like structure with an opening on one side, the open side of the first closed shell is sealed and connected to the base, and encloses a sealed space with the base; the first copper sheet and the second copper sheet are both arranged on the base, and the first ends of the first copper sheet and the second copper sheet are both located in the sealed space, the first end of the second copper sheet is suspended below the first end of the first copper sheet, and the first end of the second copper sheet is provided with a first magnet; the magnetic device is located above the first copper sheet, and the magnetic device includes a second magnet, which can generate a magnetic force that attracts or repels the first magnet.

Description

Magnetic switch

Technical Field

The utility model belongs to the technical field of switches, and in particular relates to a magnetically controlled switch.

Background Art

In high voltage and high current application scenarios, electric sparks will be generated at the moment the switch is closed. In special application scenarios, such as gas stations and mines, the generation of electric sparks can easily cause large-scale explosions, causing serious safety accidents. In the prior art, in order to avoid direct contact between electric sparks and air when the switch is closed, an explosion-proof shell is installed on the outside of the ordinary switch to reduce the incidence of accidents. However, the explosion-proof shell has the disadvantages of high installation cost and high installation and protection requirements.

Utility Model Content

In view of this, the utility model discloses a magnetically controlled switch, and the specific scheme is as follows:

A magnetically controlled switch comprises a base, a first closed shell, a first copper sheet, a second copper sheet, a first magnet and a second magnet;

The first closed shell is a shell-like structure with an opening on one side, and the opening side of the first closed shell is sealed and connected to the base, and encloses a sealed space with the base;

The first copper sheet and the second copper sheet are both arranged on the base, and the first ends of the first copper sheet and the second copper sheet are both located in the sealed space, the first end of the second copper sheet is suspended below the first end of the first copper sheet, and the first end of the second copper sheet is provided with a first magnet;

The second magnet rotates by itself to be in a first magnetic position or a second magnetic position with opposite magnetic properties. When the second magnet is in the first magnetic position, the second magnet attracts the first magnet, so that the first copper sheet and the second copper sheet are in contact and conductive. When the second magnet is in the second magnetic position, the second magnet repels the first magnet, so that the first copper sheet and the second copper sheet are separated, and the separation gap between the first copper sheet and the second copper sheet is maintained by repulsion.

As a supplement to the technical solution of the utility model, it also includes a first metal contact and a second metal contact. The first metal contact is arranged on the lower end surface of the first end of the first copper sheet, the second metal contact is arranged on the upper end surface of the first end of the second copper sheet, and the first magnet is arranged on the lower end surface of the first end of the second copper sheet.

As a supplement to the technical solution of the utility model, a magnetic device is also included, which includes a magnet support, a circular opening is provided on the magnet support, and the second magnet is a cylindrical structure, and the second magnet is arranged in the circular opening of the magnet support.

As a supplement to the technical solution of the utility model, the second magnet is a radially magnetized magnet.

As a supplement to the technical solution of the utility model, the magnetic device also includes a knob, which is arranged at one end of the second magnet in the length direction. The knob is made of insulating material, and the second magnet is rotated in the circular opening in the magnet support by rotating the knob.

As a supplement to the technical solution of the utility model, the magnet support is a non-magnetic conductive body, and an opening is provided on a side of the magnet support close to the first closed shell.

As a supplement to the technical solution of the utility model, a groove is provided on the side surface of the base away from the first closed shell, and an exhaust hole connected to the sealed space is provided on the side surface of the groove close to the first closed shell, and the groove is filled with sealant.

As a supplement to the technical solution of the utility model, the second ends of the first copper sheet and the second copper sheet are both located in the groove of the base.

As a supplement to the technical solution of the utility model, it also includes a shell, the first closed shell and the base are both arranged in the shell, and the magnetic device is arranged on the outer side wall of the shell.

Beneficial effects: The utility model can isolate air and water by placing a copper sheet capable of achieving circuit conduction in the first closed shell, and the exhaust hole can evacuate or fill the sealed space with inert gas. Since the first metal contact and the second metal contact are not in contact with the outside air in the first closed space, the generation of electric sparks is reduced when the first metal contact and the second metal contact are in contact, thereby achieving the purpose of explosion-proof. In addition, due to the setting of the sealed space, it can be used underwater to achieve the waterproof function of the switch.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the structure of the switch of the utility model in the closed state.

FIG. 2 is a schematic diagram of the structure of the switch of the utility model in the disconnected state.

FIG. 3 is a schematic diagram of the structure of the magnetic device of the present utility model.

In the figure: 1. base, 2. first closed shell, 3. first copper sheet, 4. second copper sheet, 5. first magnet, 6. magnetic device, 7. first metal contact, 8. second metal contact, 9. magnet support, 10. second magnet, 11. circular opening, 12. groove, 13. sealant, 14. exhaust hole, 15. shell.

DETAILED DESCRIPTION

In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

As shown in FIGS. 1 to 3 , the utility model discloses a magnetically controlled switch, which includes a base 1 , a first closed shell 2 , a first copper sheet 3 , a second copper sheet 4 , a first magnet 5 , and a second magnet 10 .

The base 1 is made of insulating material, such as rubber, plastic, etc. The first closed shell 2 is disposed on the base 1. The first closed shell 2 is a shell-like structure with an opening on one side. The opening side of the first closed shell 2 is sealed and connected to the base 1, and encloses a sealed space with the base 1.

The first copper sheet 3 and the second copper sheet 4 are both arranged on the base 1, and the first ends of the first copper sheet 3 and the second copper sheet 4 are both located in the sealed space, and the second ends of the first copper sheet 3 and the second copper sheet 4 are used to connect with the live wire and the neutral wire respectively, and when the first ends of the first copper sheet 3 and the second copper sheet 4 located in the first closed shell 2 are in contact, the circuit is turned on. A first magnet 5 is arranged on the first end of the second copper sheet 4, and the first end of the second copper sheet 4 is suspended below the first end of the first copper sheet 3 when no external force is applied.

The second magnet 10 is located above the first copper sheet 3 and can continuously generate a magnetic force of attraction or repulsion on the first magnet 5. The second magnet 10 is in the first magnetic position or the second magnetic position with opposite magnetic properties by its own rotation. When the second magnet 10 is in the first magnetic position, the second magnet 10 attracts the first magnet 5, so that the first magnet 5 drives the second copper sheet 4 to move toward the first copper sheet 3, so that the first copper sheet and the second copper sheet are biased and contacted; when the second magnet 10 is in the second magnetic position, the second magnet 10 repels the first magnet 5, so that the first copper sheet and the second copper sheet are separated, and the separation gap between the first copper sheet and the second copper sheet is maintained by repulsion. Through the magnetic force between the second magnet 10 and the first magnet 5, the first copper sheet 3 and the second copper sheet 4 are quickly contacted and separated. Specifically, the first magnetic position of the second magnet 10 is that the lower end magnetic pole of the second magnet 10 is opposite to the upper end magnetic property of the first magnet 5, and the first magnetic position of the second magnet 10 is that the lower end magnetic pole of the second magnet 10 is the same as the upper end magnetic property of the first magnet 5.

When the first copper sheet 3 and the first end of the second copper sheet 4 need to contact each other to realize circuit conduction, the magnetic pole of the lower end of the second magnet 10 is opposite to the magnetic pole of the upper end of the first magnet 5. For example, when the magnetic pole of the upper end of the first magnet 5 is the N pole, the lower end of the second magnet 10 is the S pole, so that the second magnet 10 generates suction force on the first magnet 5, so that the first magnet 5 drives the second copper sheet 4 toward the first ferromagnetic metal due to the action of magnetic force, so that the second copper sheet 4 is elastically deformed, the first end of the first copper sheet 4 is fitted with the first end of the first copper sheet 3, and the first copper sheet 3 and the second copper sheet 4 are in contact to realize electrical conduction.

When it is necessary to separate the first ends of the first copper sheet 3 and the second copper sheet 4 to achieve a power-off effect, the lower magnetic pole of the second magnet 10 is made the same as the upper magnetic pole of the first magnet 5, so that the second magnet 10 generates a repulsive magnetic force on the first magnet 5, so that the first end of the first copper sheet 3 is separated from the first end of the second copper sheet 4, and a gap is generated between the first copper sheet and the second copper sheet.

The utility model arranges the first copper sheet 3 and the second copper sheet 4 that can realize circuit conduction in a sealed space through the above technical solution, which can isolate the air, so that the electric spark generated when the first copper sheet 3 and the second copper sheet 4 are in contact with each other does not contact the outside air, thereby achieving the purpose of explosion-proof, and can be applied to gas stations, mines and other fields. In addition, through the arrangement of the first magnet 5 and the magnetic device 6, the first copper sheet 3 and the second copper sheet 4 can be quickly contacted and separated when the power is on and off, reducing the generation of electric sparks and improving the safety of use.

In summary, the utility model achieves the purpose of maximizing the reduction of electric sparks by increasing the speed of contact and separation between the first copper sheet 3 and the second copper sheet 4 and isolating the air. In addition, another application scenario of the utility model is an underwater switch. Since the sealed space is a closed space, it can isolate both air and water. Therefore, the switch can also be used underwater to effectively prevent short circuit problems.

As a preferred technical solution of the utility model, it also includes a first metal contact 7 and a second metal contact 8, wherein the first metal contact 7 is arranged on the lower end surface of the first end of the first copper sheet 3, the second metal contact 8 is arranged on the upper end surface of the first end of the second copper sheet 4, and the first magnet 5 is arranged on the lower end surface of the first end of the second copper sheet 4. At this time, when the second copper sheet 4 moves toward the first copper sheet 3, the first metal contact 7 and the second metal contact 8 are in contact, and the circuit is turned on. Preferably, the first metal contact 7 and the second metal contact 8 are both made of conductive metal. Preferably, the metal contact material is silver.

As a preferred technical solution of the utility model, it also includes a magnetic device 6, a magnet support 9, and the second magnet 10 is arranged on the magnet support 9, and can freely rotate on the magnet support 9 to change its magnetic pole close to the first magnet 5. A circular opening 11 is provided on the magnet support 9, and the second magnet 10 is placed in the circular opening 11 on the magnet support 9, and the second magnet 10 can rotate in the circular opening 11 of the magnet support 9.

Preferably, the magnet support 9 is made of a non-magnetic material. To ensure that the magnetic force of the second magnet 10 in the magnet support 9 can work well, an opening is provided on one side of the magnet support 9 close to the first closed shell 2, so that the magnetism of the second magnet 10 can work well on the first magnet 5 through the opening on the first closed shell 2. Preferably, the magnet support 9 is made of plastic.

As a supplement to the above technical solution, the second magnet 10 is a cylindrical structure, the second magnet 10 is a radially magnetized magnet, and the outer wall of the second magnet 10 is in contact with the inner wall of the circular opening 11 of the magnet support 9, so that the second magnet 10 can rotate in the circular opening 11 of the magnet support 9 and adjust the orientation of the N pole and S pole of the second magnet 10.

In summary, by adjusting the directions of the N pole and the S pole of the second magnet 10 , the purpose of generating the attraction force and the repulsion force on the first magnet 5 can be achieved.

As a supplement to the above embodiment, the magnetic device 6 also includes a knob, which is arranged at one end of the second magnet 10 in the length direction. The knob is made of insulating material, and the second magnet 10 is rotated in the circular opening 11 in the magnet support 9 by rotating the knob.

As a preferred technical solution of the utility model, a groove 12 is provided on the side surface of the base 1 away from the first closed shell 2, and an exhaust hole 14 connected to the sealed space is provided on the side surface of the groove 12 close to the first closed shell 2. The sealed space can be evacuated through the exhaust hole 14, or an inert gas can be introduced into the sealed space, and then the groove 12 of the base 1 is filled with a sealant 13 to block the exhaust hole 14. The exhaust hole 14 can greatly reduce the generation of electric sparks in the sealed space.

Preferably, the second ends of the first copper sheet 3 and the second copper sheet 4 are both located in the groove 12 of the base 1, and the live wire and the neutral wire are respectively connected to the second ends of the first copper sheet 3 and the second copper sheet 4. Then, the first copper sheet 3, the second copper sheet 4 and the connection positions of the live wire and the neutral wire are sealed in the groove 12 using a sealant 13. In underwater application scenarios, since the second ends of the copper sheets located in the groove 12 and the areas around the live wire and the neutral wire are filled with the sealant 13, insulation and sealing functions are achieved, further improving the waterproof function.

As a preferred technical solution of the utility model, it also includes a shell 15, the first closed shell 2 and the base 1 are both arranged in the shell 15, and the magnetic device 6 is arranged on the outer wall of the shell 15. Through the arrangement of the shell 15, various structures of the switch are assembled on the shell.

The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims (9)

1. The magnetic control switch is characterized by comprising a base (1), a first closed shell (2), a first copper sheet (3), a second copper sheet (4), a first magnet (5) and a second magnet (10);

the first closed shell (2) is of a shell-shaped structure with an opening at one side, and the opening side of the first closed shell (2) is in sealing connection with the base (1) and forms a sealing space with the base (1);

The first copper sheet (3) and the second copper sheet (4) are arranged on the base (1), the first ends of the first copper sheet (3) and the second copper sheet (4) are positioned in the sealed space, the first end of the second copper sheet (4) is suspended below the first end of the first copper sheet (3), and the first end of the second copper sheet (4) is provided with a first magnet (5);

The second magnet (10) rotates by itself to be in a first magnetic position or a second magnetic position with opposite magnetism, when the second magnet (10) is in the first magnetic position, the second magnet (10) attracts the first magnet (5) to enable the first copper sheet (3) to be in contact conduction with the second copper sheet (4); when the second magnet (10) is in a second magnetic position, the second magnet (10) repels the first magnet (5) so as to separate the first copper sheet from the second copper sheet, and a separation gap between the first copper sheet and the second copper sheet is maintained through repulsive force.

2. The magnetically controlled switch according to claim 1, further comprising a first metal contact (7) and a second metal contact (8), wherein the first metal contact (7) is disposed on a lower end face of the first end of the first copper sheet (3), the second metal contact (8) is disposed on an upper end face of the first end of the second copper sheet (4), and the first magnet (5) is disposed on a lower end face of the first end of the second copper sheet (4).

3. The magnetically controlled switch according to claim 1, further comprising a magnetic device (6), wherein the magnetic device (6) comprises a magnet support (9), a circular opening (11) is provided in the magnet support (9), the second magnet (10) is of a cylindrical structure, and the second magnet (10) is disposed in the circular opening (11) of the magnet support (9).

4. A magnetically controlled switch according to claim 3, characterized in that the second magnet (10) is a radially magnetized magnet.

5. The magnetically controlled switch according to claim 4, wherein the magnetic device (6) further comprises a knob, the knob is arranged at one end of the second magnet (10) in the length direction, the knob is made of an insulating material, and the second magnet (10) is rotated in the circular opening (11) in the magnet support (9) by rotating the knob.

6. The magnetically controlled switch according to claim 5, characterized in that the magnet holder (9) is a non-conductive body, and that an opening is provided in the side of the magnet holder (9) close to the first closed housing (2).

7. The magnetic control switch according to claim 1, wherein a groove (12) is formed in the side surface of the base (1) far away from the first closed shell (2), an exhaust hole (14) communicated with the sealing space is formed in the side surface of the groove (12) close to the first closed shell (2), and sealing glue (13) is filled in the groove (12).

8. The magnetically controlled switch according to claim 7, wherein the second ends of the first copper sheet (3) and the second copper sheet (4) are both located in the recess (12) of the base (1).

9. A magnetic control switch according to claim 3, further comprising a housing (15), wherein the first closed housing (2) and the base (1) are both arranged in the housing (15), and the magnetic device (6) is arranged on an outer side wall of the housing (15).