CN1322523C - Magnetic control switch device - Google Patents

Abstract

The invention relates to the technical field of switch control devices, in particular to a magnetic control switch device controlled by magnetic force. The technical scheme is as follows: the circuit board is mainly composed of a circuit board, a contact block and a contact which are made of mutually attractive materials, and a bottom plate for bearing the contact block. The bottom plate is provided with a groove for placing the contact pressing block; the circuit board covers on the bottom plate; the circuit board is distributed with circuits, and the connecting contacts of the circuits are positioned right above the grooves. When the circuit is used, the contact is moved to the position above the contact block, and the contact block moves upwards under the action of the magnetic force and is pressed against the two connecting contacts to communicate the circuit; when the contact is moved to other positions and is far away from the upper part of the touch block, the magnetic force disappears, the touch block falls under the action of self gravity and the tension of the plastic film, and the circuit is disconnected. The invention has simple structure and convenient use, and can be hidden and arranged in the product because the magnetic force is utilized to touch the circuit switch.

Description

Magnetic control switch device

Technical field:

The invention relates to the technical field of switch control devices, in particular to a magnetic control switch device controlled by magnetic force.

Background technique:

The control switch device is widely used in people's daily life. The usual control switch device is connected to the circuit by mechanical contact pressure, and the deformation of the contact pressure point in the control switch device is changed by artificial external force, so that it connects the connection contacts in the circuit. . Since this kind of switch needs to be artificially applied with external force, it is often limited in use. For example, see Figure 1, which is a touch control switch device that can be applied to various types of circuits. Touch and press the protective film 02. When in use, press the protective film 02 with your hands to make the two elastic pieces 01 contact each other, thereby connecting the circuit. After the release, the elastic piece 01 returns to its original shape under its own elastic force, and the circuit is disconnected. When using this control switch device, if there is no other object on the protective film 02, the user can easily press the elastic pieces 01 together. However, in actual use, a certain object is often placed above the switch, and the user must press down on the object to touch the shrapnel 01 of the switch device during use. Poor contact often occurs when using this control switch like this or the phenomenon that control switch can't be connected. On the other hand, in order to solve such problems, many people are now designing new control switch devices, most of which utilize the characteristics of magnetic tools. For example, a "sealed magnetic switch" is disclosed in Chinese patent specification ZL96229613.9, which utilizes the change of the attractive force on both sides of the permanent magnet to switch between the on and off modes of the switch. Another example is that the Chinese patent specification No. 88205007.9 discloses a "button-type magnetic switch". This product cancels the current structure of the commonly used switch device using a spring. It uses the principle of a permanent magnet to realize the electromagnetic switch in the circuit. The chips can be in contact with each contact point respectively, and finally realize the switch or switch of the circuit. But all there is certain deficiency in above-mentioned these products, its person needs to be provided with touch-press type button or button on switchgear, and it does not completely change the defective of existing product.

Invention content:

The object of the present invention is to overcome the disadvantages of the above-mentioned products, and provide a magnetically controlled switch device that can be controlled by magnetic force through objects.

The present invention is achieved through the following technical solutions: it includes a circuit board, a contact block made of mutually attractable iron or magnetic material, a contact, and a bottom plate for carrying the contact block, wherein the circuit board is located above the bottom plate; and The connection contacts of the circuit on the circuit board are located above the contact pressure block, wherein the bottom plate is provided with a groove for placing the contact pressure block; the circuit board is covered on the bottom plate; and the connection contacts of the circuit on the circuit board are located in the groove Directly above; the connection contacts in the line described above are a pair of contacts that are superimposed on each other but not in contact.

The invention utilizes the penetrating characteristic of magnetic force to control the circuit switch. When in use, move the contact to the top of the contact block, and the contact block moves upward under the action of this magnetic force, and presses against the two connecting contacts to connect the circuit; when the contact is moved to another position, the magnetic force disappears , the contact pressure block falls under its own gravity, and the circuit is disconnected. The invention has simple structure and is convenient to use, and because it uses magnetic force to touch the line switch, it can be concealedly installed inside the product.

Description of drawings:

Below in conjunction with accompanying drawing, the present invention will be further described:

Fig. 1 is a schematic structural diagram of an existing switch;

Fig. 2 is a schematic structural view of Embodiment 1 of the present invention;

3 to 8 are schematic structural views of six implementations of Embodiment 1;

Fig. 9 is a schematic structural diagram of Embodiment 2 of the present invention;

Fig. 10 is a schematic structural diagram of Embodiment 3 of the present invention;

Fig. 11 is a state diagram when the present invention is closed;

Fig. 12 is a schematic structural diagram of an application mode of the present invention.

Detailed ways:

The invention mainly includes: a circuit board 1 , a pressure contact block 2 and a contact 4 made of mutually attractable materials, and a bottom plate 3 for carrying the pressure contact block 2 . The bottom plate 3 is provided with a groove 31 for placing the pressing block 2. The depth of the groove 31 should be greater than the thickness of the pressing block 2, so that the pressing block 2 will not press against the connecting contact 111 under normal conditions. The circuit board 1 is covered on the base plate 3 ; the circuit board 1 is distributed with the circuit 11 , and the connection contact 111 of the circuit 11 is located directly above the groove 31 . The circuit board 1 is usually a printed circuit board, which can greatly reduce the volume of the product because of its thin thickness. The base plate 3 is made of insulating material, and the bottom of the base plate 3 is a layer of plastic film 32 , on which the contact pressure block 2 is fixed. In this way, when the device is turned upside down, the tension of the plastic film 32 is used to ensure that the contact block 2 will not fall under the action of gravity, and the circuit 11 is connected.

The materials used for the pressure block 2 and the contact 4 are magnets or materials such as iron and cobalt that can be attracted by magnets, but in the production process, it should be ensured that the magnetic force of mutual attraction between the pressure block 2 and the contact 4 can be generated . For example, if the pressing block 2 adopts materials with magnetism such as magnets, then the contact 4 can adopt materials such as magnets or iron that can be attracted by magnets; Head 4 can only adopt magnet.

See accompanying drawing 2, which is a schematic structural diagram of Embodiment 1 of the present invention, and the connection contacts 111 are a pair of elastic sheets which are superimposed but not in contact with each other. When in use, move the contact 4 to the top of the pressing block 2, because the magnetic force of mutual attraction can be generated between the pressing block 2 and the contact 4, so the pressing block 2 will move upward under the action of this magnetic force and resist Press it onto the connection contact 111, so that the elastic pieces are closely stacked together, as shown in Figure 11. At this point line 11 is switched on. When the contact 4 is moved to another position away from the top of the contact block 2, the magnetic force disappears, and the contact block 2 falls under the action of its own gravity and the tension of the plastic film 32, and the shrapnel at the connecting contact 111 is under the action of its own elastic force The original shape is restored, and the line 11 is disconnected.

The six manufacturing methods of the pressing block 2 and the contact 4 will be described in detail below through this embodiment. In the production process, it should be ensured that the magnetic force of mutual attraction can be generated between the pressing block 2 and the contact 4. When the pressing block 2 and the contact 4 both use magnets, it should be ensured that the opposite ends of the two have opposite magnetic poles, such as When the magnetic pole of one end of the contact block 2 facing the contact 4 is S pole, then the end of the contact 4 facing the contact block 2 should be an N pole, and vice versa, see accompanying drawings 3 and 4; when the contact block 2 adopts Magnet, and when contact 4 adopts iron (Fe), then there is no requirement to the magnetic pole pointing of contact pressure block 2, S pole or N pole point to contact 4 all can, see accompanying drawing 5,6; When contact pressure block 2 adopts Iron (Fe), and when contact 4 adopts magnet, then there is no requirement to the magnetic pole pointing of contact 4, N pole or S pole point to contact pressure block 2 and all can, see accompanying drawing 7,8.

See FIG. 9 , which is a schematic structural diagram of Embodiment 2 of the present invention. The connection contacts 111 are a pair of contacts that are adjacent to each other but not in contact. In this embodiment, the connection contact 111 of the line 11 is connected through the contact pressure block 2, so it should use a conductive material or a piece of conductive metal material should be fixed on the end surface adjacent to the contact 111. When in use, the contact 4 is moved to the top of the pressing block 2 , and the pressing block 2 moves upward under the action of the magnetic force, and presses against the two connection contacts 111 to connect the circuit 11 . When the contact 4 is moved to other positions away from the top of the contact block 2, the magnetic force disappears, and the contact block 2 falls under its own gravity and the tension of the plastic film 32, and the circuit 11 is disconnected.

See accompanying drawing 10, which is a schematic structural diagram of Embodiment 3 of the present invention, which is a control switch device with two control functions designed in combination with the characteristics of the above two control switch devices and the prior art. Here will be described on the basis of Embodiment 1 (of course, this embodiment can also be used in the structure of Embodiment 2, so it will not be repeated one by one because of its similar structure): This embodiment is based on Embodiment 1. A line connection contact 112 is arranged opposite to the connection contact 111 , that is, it protrudes upwards in a direction opposite to the pressure contact block 2 . When in use, the connecting contact 112 can be directly pressed down by hand to make the two shrapnels contact each other, thereby connecting the line 11; after the pressure is released, the shrapnel returns to its original shape under the action of its own elastic force, and the line is disconnected. Or use the contact 4 to trigger the pressure contact block 2 to connect or disconnect the line 11 . This embodiment combines the technical characteristics of manual and magnetic force, which further ensures the stability of the control switch device.

The present invention can be applied in various products, such as lighting equipment, electronic books and other products. Because of its simple structure, it is convenient to use. And because it uses magnetic force to touch the circuit switch, it can be installed concealed inside the product.

See accompanying drawing 12, which is a schematic diagram of an application mode of the present invention, wherein a number of magnetic switches are distributed on the switch control board, but in these magnetic switches, the contact pressure block 2 of some switches is S pole upward, while the other part is N pole up. The S pole of the contact 41 is downward, and the N pole of the contact 42 is downward. Selecting different contacts in this way can open different magnetic switches, for example, the contact 41 can only open the magnetic switch with the N pole upwards of the pressure block 2; and the contact 42 can only open the magnetic switch with the S pole upwards of the pressure block 2 . Certainly, also can set up the magnetic switch that contact 41,42 all can open on the switch control board, namely increase some magnetic switches that touch pressure block 2 and adopt iron to get final product.

Claims (3)

1. The magnetic control switch device is characterized in that it includes a circuit board (1), a contact block (2) made of mutually attractable iron or magnetic material, a contact (4) and a contact block (2) for carrying the contact block (2). ) base plate (3), wherein the circuit board (1) is located above the base plate (3); The base plate (3) is provided with a groove (31) for placing the contact pressure block (2); the circuit board (1) covers the base plate (3); and the connection of the circuit (11) on the circuit board (1) The contact point (111) is located directly above the groove (31); the connecting contact point (111) in the circuit (11) is a pair of mutually superimposed but non-contacting contacts. 2. The magnetic control switch device according to claim 1, characterized in that: another connection contact (112) is distributed opposite to the above connection contact (111), and the two connection contacts (111, 112) are both It protrudes upwards in the direction opposite to the pressing block (2). 3. The magnetic control switch device according to claim 1, characterized in that: the bottom plate (3) is made of insulating material, and the bottom of the bottom plate (3) is a layer of plastic film (32), and the contact pressure block (2) is fixed on On this plastic film (32).

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