A rotary switch device and a switch door

Abstract

The present application provides a rotary switch device and a switch door, comprising: a permanent magnet, a first magnetizer and a second magnetizer; the first magnetizer has a first end and a second end opposite to each other; the permanent magnet contacts the first end of the first magnetizer, a magnetic through hole is provided in the first magnetizer, and the second magnetizer contacts the second end of the first magnetizer, and the magnetic pole direction of the permanent magnet can be changed by rotating the permanent magnet, and the magnitude of the magnetic force between the first magnetizer and the second magnetizer can be controlled; the rotary switch device of the present application can change the magnetic pole direction of the permanent magnet by rotating the permanent magnet, so that the rotary switch device can be easily opened and tightly closed when closed; the beneficial effect of the switch door is that, compared with the prior art, by adopting the rotary switch device, the switch door can be easily opened and kept tightly closed when closed.

Description

Technical Field

[0001] The present application belongs to the field of switch technology, and more specifically, relates to a rotary switch device and a switch door. Background Art

[0002] Various types of doors can be seen everywhere in life, such as refrigerator doors, microwave oven doors, etc. In order to achieve that the door can be tightly closed when closed, in the prior art, a pair of magnets with opposite magnetic properties are often added to the door frame and door panel of the door, and the door can be tightly closed by the magnetic attraction of the pair of magnets.

[0003] However, when the magnetism of the pair of magnets is strong, it is difficult to open the door by applying a small force. When the magnetism of the pair of magnets is weak, the door cannot be tightly closed, which brings inconvenience to people when using the door. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a rotary switch device and a switch door to solve the technical problem in the prior art that the switch door cannot be easily opened and tightly closed at the same time during use.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide a rotary switch device, comprising: a permanent magnet, a first magnetic conductor and a second magnetic conductor;

[0006] The first magnet has a first end and a second end opposite to each other; the permanent magnet contacts the first end of the first magnet, a magnetic through hole is provided in the first magnet, and the second magnet contacts the second end of the first magnet. By rotating the permanent magnet, the magnetic pole direction of the permanent magnet can be changed, and the magnetic force between the first magnet and the second magnet can be controlled.

[0007] Preferably, the permanent magnet is one of magnetite or aluminum-nickel-cobalt alloy.

[0008] Preferably, the permanent magnet and the first magnetic conductor are located on the same symmetry center.

[0009] Preferably, the first magnetic conductor has a connecting plate and a pair of side plates, the connecting plate is in contact with the permanent magnet, the first ends of the pair of side plates are respectively connected to the two ends of the connecting plate, the second ends of the pair of side plates are respectively in contact with the second magnetic conductor, and the magnetic through hole is located between the pair of side plates.

[0010] Preferably, the first magnetic conductor has a support plate, the support plate is located between a pair of side plates, a first end of the support plate is connected to the connecting plate, and a second end of the support plate is in contact with the second magnetic conductor.

[0011] Preferably, the rotary switch device includes a power mechanism, the output end of which is connected to the permanent magnet, so that the power mechanism can drive the permanent magnet to rotate and change the magnetic pole direction of the permanent magnet, thereby controlling the magnitude of the magnetic force between the first magnetic conductor and the second magnetic conductor.

[0012] Preferably, the power mechanism comprises a motor, and an output end of the motor is connected to a side of the permanent magnet facing away from the first magnetic conductor.

[0013] Preferably, the power mechanism comprises a cylinder and a rack, the output end of the cylinder is connected to the rack, and the rack and the permanent magnet are meshed with each other.

[0014] The present application also provides a switch door, which includes the rotary switch device as described above.

[0015] Preferably, the switch door comprises a door frame and a door panel, the door panel is installed in the door frame and hingedly connected to the door frame; the permanent magnet and the first magnetic conductor are installed on the door panel, and the first magnetic conductor is installed on the door frame.

[0016] The beneficial effect of the rotary switch device provided in the present application is that, compared with the prior art, the rotary switch device can change the magnetic pole direction of the permanent magnet by rotating the permanent magnet, and control the magnitude of the magnetic force between the first magnetic conductor and the second magnetic conductor, so that the rotary switch device can be easily opened and tightly closed when closed; the beneficial effect of the switch door is that, compared with the prior art, by adopting the rotary switch device, the switch door can be easily opened and can remain tightly closed when closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 A front view of the rotary switch device provided in an embodiment of the present application when in an open state;

[0019] Figure 2 for Figure 1 A left side view of the rotary switch device in the open state;

[0020] Figure 3 for Figure 1 A top view of the rotary switch device in the open state;

[0021] Figure 4 for Figure 1 A front view of the rotary switch device in the closed state;

[0022] Figure 5 for Figure 1 A left side view of the rotary switch device in the closed state;

[0023] Figure 6 for Figure 1 A top view of the rotary switch device in the closed state;

[0024] Figure 7 A front view of a rotary switch device provided by another embodiment of the present application in an open state;

[0025] Figure 8 This is a schematic diagram of the structure of the switch door in the closed state provided in an embodiment of the present application. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0028] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0029] In addition, 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 the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] Please also read Figures 1 to 6The rotary switch device 100 provided in the embodiment of the present application is now described. The rotary switch device 100 comprises: a permanent magnet 10 , a first magnetic conductor 20 and a second magnetic conductor 30 .

[0031] Specifically, the first magnet 20 has a first end 201 and a second end 202 facing each other; the permanent magnet 10 is in contact with the first end 201 of the first magnet 20, a magnetic through hole 21 is provided in the first magnet 20, and the second magnet 30 is in contact with the second end 202 of the first magnet 20. By rotating the permanent magnet 10, the magnetic pole direction of the permanent magnet 10 can be changed, and the magnetic force between the first magnet 20 and the second magnet 30 can be controlled.

[0032] It should be noted that when the N pole and S pole positions of the permanent magnet 10 are Figures 1 to 3 As shown, the rotary switch device 100 is in the open state, the axial direction of the permanent magnet 10 is parallel to the axial direction of the magnetic through hole 21, and the magnetic lines of force are emitted from the N pole of the permanent magnet 10. Since the medium in the magnetic through hole 21 is usually air, and the magnetic permeability of air is less than the magnetic permeability of the first magnet 20, the magnetic lines of force will pass through the end of the first magnet 20 close to the permanent magnet 10, and finally the magnetic lines of force return to the S pole of the permanent magnet 10, thereby forming a complete circuit. At this time, the magnetic lines of force do not pass through the second magnet 30, so there is no magnetic force between the first magnet 20 and the second magnet 30, and the first magnet 20 and the second magnet 30 can be easily separated, so that the rotary switch device 100 can be easily opened.

[0033] The permanent magnet 10 is rotated to the position where the N pole and the S pole of the permanent magnet 10 are as follows: Figures 4 to 6 As shown, the rotary switch device 100 is in a closed state, the axial direction of the permanent magnet 10 is perpendicular to the axial direction of the magnetic through hole 21, and the magnetic lines of force are emitted from the N pole of the permanent magnet 10. The magnetic lines of force will move along the first magnet 20 toward the direction close to the second magnet 30 and enter one side of the second magnet 30, and finally the magnetic lines of force will return to the S pole of the permanent magnet 10 from the other side of the second magnet 30 to form a complete loop. At this time, the magnetic lines of force pass through the first magnet 20 and the second magnet 30 at the same time, so there is a magnetic force between the first magnet 20 and the second magnet 30, and then the first magnet 20 and the second magnet 30 are difficult to separate, so that the rotary switch device 100 remains tightly closed.

[0034] It is worth noting that the magnetic through hole 21 can be a through hole directly formed on the first magnetic conductor 20, or a through hole formed by a groove on the first magnetic conductor 20 and the second magnetic conductor 30, so as to allow the magnetic through hole 21 to contain a medium with a magnetic permeability less than that of the first magnetic conductor 20.

[0035] Compared with the prior art, the rotary switch device 100 provided in the present application can change the magnetic pole direction of the permanent magnet 10 by rotating the permanent magnet 10, and control the magnetic force between the first magnetic conductor 20 and the second magnetic conductor 30, so that the rotary switch device 100 can be easily opened and tightly closed when closed.

[0036] In another embodiment of the present application, the permanent magnet 10 is one of magnetite or aluminum-nickel-cobalt alloy. It is understandable that magnetite and aluminum-nickel-cobalt alloy are magnets that can maintain their magnetism for a long time, and the magnetic poles of magnetite and aluminum-nickel-cobalt alloy do not change, are less affected by environmental factors, are easy to process and produce, and are conducive to reducing production costs.

[0037] In another embodiment of the present application, please refer to Figures 1 to 6 , the permanent magnet 10 and the first magnetizer 20 are located at the same symmetry center. When the permanent magnet 10 and the first magnetizer 20 are located at the same symmetry center, whether opening or closing the rotary switch device 100, it is only necessary to rotate the permanent magnet 10 around the symmetry center by 90°. The rotation direction of the permanent magnet 10 can be 90° clockwise or 90° counterclockwise, in order to ensure that the magnetic field lines of the permanent magnet 10 can be fully introduced into the first magnetizer 20, so that the first magnetizer 20 can fully play a magnetic conductive role.

[0038] In another embodiment of the present application, please refer to Figure 1 as well as Figure 4 The first magnetizer 20 has a connecting plate 22 and a pair of side plates 23. The connecting plate 22 contacts the permanent magnet 10. The first ends of the pair of side plates 23 are respectively connected to the two ends of the connecting plate 22. The second ends of the pair of side plates 23 are respectively in contact with the second magnetizer 30. The magnetic through hole 21 is located between the pair of side plates 23. It can be understood that the magnetic field lines of the permanent magnet 10 are conveniently introduced into the first magnetizer 20 by the close contact between the connecting plate 22 and the permanent magnet 10. The side plate 23 can introduce the magnetic field lines introduced into the first magnetizer 20 into the second magnetizer 30 by contacting the second magnetizer 30. The magnetic field lines are guided back to the permanent magnet 10 after passing through the second magnetizer 30, so that when the rotary switch device 100 is in the closed state, the magnetic field lines of the permanent magnet 10 can pass through the second magnetizer 30 and form a complete loop.

[0039] In another embodiment of the present application, please refer to Figure 1 as well as Figure 4The first magnet 20 has a support plate 24, which is located between a pair of side plates 23, a first end of the support plate 24 is connected to the connecting plate 22, and a second end of the support plate 24 is in contact with the second magnet 30. It can be understood that the support plate 24 can enhance the overall strength of the first magnet 20, thereby preventing the first magnet 20 from breaking during the long-term switching process of the rotary switch device 100. At the same time, when the rotary switch device 100 is in the closed state, the contact area between the first magnet 20 and the second magnet 30 can be increased, thereby increasing the magnetic force between the first magnet 20 and the second magnet 30, so that the rotary switch device 100 is closed more tightly.

[0040] In another embodiment of the present application, please refer to Figure 7 The rotary switch device 100 includes a power mechanism 40, the output end of which is connected to the permanent magnet 10, so that the power mechanism 40 can drive the permanent magnet 10 to rotate and change the magnetic pole direction of the permanent magnet 10, and control the magnitude of the magnetic force between the first magnetizer 20 and the second magnetizer 30. It can be understood that by driving the permanent magnet 10 to rotate through the power mechanism 40, the opening and closing of the rotary switch device 100 is facilitated, saving time and effort.

[0041] In another embodiment of the present application, the power mechanism 40 includes a motor, and the output end of the motor is connected to the side of the permanent magnet 10 away from the first magnetizer 20. It can be understood that the permanent magnet 10 is driven by the motor, the structure is simple, and the power output is direct. Preferably, the motor is a servo motor, which can convert the voltage signal into torque and speed to drive and control the permanent magnet 10, and can improve the accuracy of the rotation speed and the rotation angle. Of course, the motor can also be a motor such as a synchronous motor, which is intended to accurately control the rotation angle of the permanent magnet 10.

[0042] In another embodiment of the present application, the power mechanism 40 includes a cylinder and a rack, the output end of the cylinder is connected to the rack, and the rack is meshed with the permanent magnet 10. It can be understood that when the rotary switch device 100 is used in a specific power-free environment, such as in the processing scene of flammable and explosive items, the combined structure of the cylinder and the rack can be used to drive the permanent magnet 10 to rotate, the cylinder drives the rack to move back and forth by telescoping, and the rack drives the permanent magnet 10 to rotate by meshing with the permanent magnet 10, thereby improving the safety performance of use.

[0043] See also Figure 8 The present application also provides a switch door 200, which includes the rotary switch device 100 as described above.

[0044] It can be understood that the switch door 200 includes all the basic features and beneficial effects of the rotary switch device 100. Therefore, compared with the prior art, the switch door 200 using the rotary switch device 100 can be easily opened by rotating the switch device 100, and the switch door 200 can be kept tightly closed when closed.

[0045] In another embodiment of the present application, please refer to Figure 8 The switch door 200 includes a door frame 210 and a door panel 220. The door panel 220 is installed in the door frame 210 and connected to the door frame 210 by hinges. The permanent magnet 10 and the first magnet conductor 20 are installed on the door panel 220, and the first magnet conductor 20 is installed on the door frame 210. It can be understood that a handle or a button or other structure can be provided on the door panel 220, so that the permanent magnet 10 can be rotated. When the switch device is turned on, the door panel 220 can be easily opened. When the switch device is turned off, the door frame 210 and the door panel 220 can be tightly closed.

[0046] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A rotary switch device, characterized in that: include: A permanent magnet, a first magnetic conductor and a second magnetic conductor; the permanent magnet is one of magnetite and aluminum-nickel-cobalt alloy; the permanent magnet and the first magnetic conductor are located on the same symmetry center; The first magnet has a first end and a second end opposite to each other; the permanent magnet contacts the first end of the first magnet, a magnetic through hole is provided in the first magnet, and the second magnet contacts the second end of the first magnet. By rotating the permanent magnet, the magnetic pole direction of the permanent magnet can be changed, and the magnetic force between the first magnet and the second magnet can be controlled.

2. The rotary switch device according to claim 1, characterized in that: The first magnetic conductor has a connecting plate and a pair of side plates, the connecting plate is in contact with the permanent magnet, the first ends of the pair of side plates are respectively connected to the two ends of the connecting plate, the second ends of the pair of side plates are respectively in contact with the second magnetic conductor, and the magnetic through hole is located between the pair of side plates.

3. The rotary switch device according to claim 2, characterized in that: The first magnetic conductor has a support plate, and the support plate is located between a pair of side plates. A first end of the support plate is connected to the connecting plate, and a second end of the support plate is in contact with the second magnetic conductor.

4. The rotary switch device according to any one of claims 1 to 3, characterized in that: The rotary switch device includes a power mechanism, the output end of which is connected to the permanent magnet, so that the power mechanism can drive the permanent magnet to rotate and change the magnetic pole direction of the permanent magnet, thereby controlling the magnitude of the magnetic force between the first magnetic conductor and the second magnetic conductor.

5. The rotary switch device according to claim 4, characterized in that: The power mechanism comprises a motor, and an output end of the motor is connected to a side of the permanent magnet facing away from the first magnetic conductor.

6. The rotary switch device according to claim 4, characterized in that: The power mechanism comprises a cylinder and a rack, the output end of the cylinder is connected to the rack, and the rack and the permanent magnet are meshed with each other.

7. A door opening and closing device, characterized in that: Comprising a rotary switch device as claimed in any one of claims 1 to 6.

8. The door opening and closing device according to claim 7, characterized in that: The switch door comprises a door frame and a door panel, wherein the door panel is installed in the door frame and hingedly connected to the door frame; the permanent magnet and the first magnetic conductor are installed on the door panel, and the first magnetic conductor is installed on the door frame.

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