TW201707028A - Method of magnetic levitation press-button - Google Patents

Abstract

The present invention provides a method of magnetic levitation press-button includes steps of: step A: an electromagnetic coil circuit of a printed circuit board generating the same polarity with a magnetic element of a keycap; step B: a magnetic sensor on the printed circuit board detecting that the magnetic element of the keycap moves downward, an abutment of the keycap abuts a pivoting components to generate a sense of "click"; step C: the magnetic sensor transmitting a triggering signal to a microprocessor of the printed circuit board, the microprocessor controlling the electromagnetic coil circuit to stop generating polarity after receiving the triggering signal; step D: pressing the keycap to make the magnetic element of the keycap close to the printed circuit board; step E: the magnetic sensor transmitting an actuating signal to the microprocessor; and step F: the microprocessor controlling the electromagnetic coil circuit to generate the same polarity with the magnetic element of the keycap.

Description

Maglev button method

The invention relates to a button method, in particular to a maglev button method which uses the principle of maglev.

Generally, the definition of a keyboard is a set of buttons for operating a machine, and is a group of buttons arranged in a systematic manner. The most traditional buttons are mechanical buttons, which are designed on a circuit board. A plurality of dual-in-line package (DIP) switches are arranged, each DIP switch corresponds to a button, and the magnitude of the stress required for pressing is adjusted by adjusting the stress of the spring. Since the keyboard uses a DIP switch composed of a plurality of metal reeds and springs, the noise is large during use, and the key stroke is long, which is not suitable for high-speed input. On the other hand, it uses plural DIP switches make the thickness of the keyboard difficult to reduce, occupying a considerable amount of space in electronic devices, and are not suitable for deployment on portable electronic products, such as ultra-thin notebooks and smart phones. on. Therefore, a thin-film keyboard has been developed for the thin design of portable electronic products, which has low cost, simple structure, easy mass production, low noise during use, and short button stroke, compared with the conventional mechanical type. The keyboard is more suitable for high-speed input, and the elastic conductive rubber is used as a medium for the upper and lower electrodes of the button to be activated to trigger the function of the button, and the button can be bounced back to the initial position by the characteristics of the rubber material after the button is pressed. Pressed again.

However, the rubber has a problem of deterioration, which is easily damaged after repeated bending and pressing, and loses the elastic force; on the other hand, the keyboard cannot reduce the height of the button when it is not in use, and the storage of the keyboard and the design of the portable electronic product are Therefore, the Chinese patent certificate No. CN 103065844 B proposes a magnetic type push button and a keyboard thereof which do not have the problem of repeated extrusion and are prone to deterioration and loss of elasticity, and are preferable. The service life.

However, the magnetic floating keyboard of the prior art does not have a paragraph sense when pressed (ie, resists Nie feels a change with the stroke position. It is more difficult to press, and it is difficult for the user to judge whether the press is a valid press. It is easy to cause the result of no input or repeated input, resulting in inconvenience in use and poor user experience. On the other hand, the magnetic floating keyboard of the prior art is difficult to reduce the height of the button when it is not in use, and it is difficult to achieve the purpose of convenient storage and convenient carrying.

Therefore, a magnetic floating button method which has a paragraph feeling when pressed and can adjust the height of the button in a non-use state and can be easily accommodated and carried is proposed, which is a technical problem that various circles are currently trying to solve.

In view of the above-mentioned shortcomings of the prior art, the main purpose of the present invention is to provide a magnetic floating button method which has a paragraph sense when pressed and can reduce the height of the button when it is not in use, so as to facilitate storage and convenient carrying.

For the above main purpose and other purposes, the magnetic floating button method provided by the present invention comprises the following steps: Step A: An electromagnet coil circuit of a printed circuit board generates the same polarity as a magnetic element of a keycap, so that The key cap is raised to a first position, one of the keycaps abuts against a pivoting member, and the pivoting member is magnetically attracted to the magnetic component; and step B: when a user presses the key downward When the cap is in a second position, a magnetic sensor on the printed circuit board senses that the magnetic component of the keycap moves downward, and the abutting member disengages the pivoting member from the magnetic component to generate a stepwise feeling; step C: the magnetic sensor transmits a trigger signal to a microprocessor of the printed circuit board, and after receiving the trigger signal, the microprocessor controls the electromagnet coil circuit to stop generating polarity; step D When the user presses the keycap down to a third position, the magnetic component of the keycap approaches the printed circuit board; Step E: when the magnetic sensor senses the magnetic component of the keycap When you stop moving, the magnetic sexy Transmitting an unambiguous signal to the microprocessor; and step F: the microprocessor of the printed circuit board controls the electromagnet coil circuit to generate the same polarity as the magnetic element of the keycap, causing the keycap to rise to the First position.

Preferably, in step A, the magnetic element can be an element covered by a magnetic coating or a thin magnet.

Preferably, in step A, the magnetic element may comprise a magnetic region and a non-magnetic region.

Preferably, in step B, the pivoting member is adsorbed by the magnetic element of the keycap.

Preferably, in step B, the pivoting member is movable in a circumferential manner to disengage the magnetic member of the keycap.

Preferably, in step B, the pivoting member can be made of metal.

Preferably, in step C, the microprocessor controls the polarity and magnetic magnitude of the electromagnet coil circuit.

Preferably, the step G includes: in the standby state, the microprocessor can adjust the polarity of the electromagnet coil circuit such that the polarity of the electromagnet coil circuit is different from the polarity of the magnetic element of the key cap, thereby The keycap is attracted to the electromagnet coil circuit of the printed circuit board.

Preferably, the step H is further included: the microprocessor can close the electromagnet coil circuit to cause the keycap to exhibit a natural drop.

The invention embeds a magnetic component in the key cap, and provides an electromagnet coil circuit, a microprocessor and a magnetic sensor on the printed circuit board. When the magnet of the electromagnet coil circuit on the printed circuit board is the same as the magnetic component in the key cap When the key cap is raised, the key cap is lowered, and then the magnetic force value is detected by the magnetic sensor provided on the printed circuit board to complete the trigger. The magnetic floating button method provided by the present invention makes the magnetic floating button method of the present invention easy to be used in a non-use state to reduce the height of the button, so as to be conveniently stored and conveniently carried; and further, the magnetic member can be magnetically attracted and disengaged from the magnetic member. The state changes to cause the damping to change with the pressing stroke position of the keycap, that is, the moment of the change from the magnetic to the disengaged state causes the damping to drop, to generate the sense of the paragraph, and let the user know that the pressing is a valid pressing, and It makes the pressing more labor-saving, so the creation achieves labor-saving operation, convenient carrying and better use experience.

11‧‧‧Printed circuit board

111‧‧‧Electromagnetic coil circuit

112‧‧‧Microprocessor

12‧‧‧Magnetic sensor

16‧‧‧ pivotal parts

18‧‧‧Key Cap

181‧‧‧Abutment

183‧‧‧ Magnetic components

A~F‧‧ steps

1 is a flow chart of a magnetic floating button method of the present invention; FIG. 2 is a schematic view showing a first position of a keycap of the magnetic floating button method of the present invention; FIG. 3 is a schematic view showing a second position of a keycap of the magnetic floating button method of the present invention; A schematic view of the third position of the keycap of the magnetic floating button method of the present invention.

The embodiments of the present invention are described by way of specific examples, and those skilled in the art can readily appreciate the other advantages and advantages of the present invention. The invention may be embodied or applied in various other specific embodiments, and various modifications and changes may be made without departing from the spirit and scope of the invention.

It is to be understood that the structure, the proportions, the size and the like of the present invention are intended to be used in conjunction with the disclosure of the specification, and are not intended to limit the scope of the invention. The conditions are not technically meaningful, and any modification of the structure, change of the proportional relationship or adjustment of the size should be disclosed in the present invention without affecting the effects and achievable effects of the present invention. The technical content can be covered.

Please refer to FIG. 1 and FIG. 2 first. FIG. 1 is a flow chart of the magnetic floating button method of the present invention, and FIG. 2 is a schematic view showing the first position of the key cap of the magnetic floating button method of the present invention. As shown in the figure, the magnetic floating button method provided by the present invention comprises the following steps: Step A: An electromagnet coil circuit 111 of a printed circuit board 11 generates the same polarity as a magnetic element 183 of a keycap 18, so that the key The cap 18 is raised to a first position, one of the key caps 18 abuts against a pivoting member 16, and the pivoting member 16 is magnetically attracted to the magnetic member 183; Step B: when a user presses the button down When the cap 18 is in a second position, as shown in FIG. 3, one of the magnetic sensors 12 on the printed circuit board 11 senses the magnetic element 183 of the keycap 18 moving downward, and the abutting portion 181 causes the pivoting member 16 to move downward. Disengaged from the magnetic component 183 to create a sense of paragraph; Step C: The magnetic sensor 12 transmits a trigger signal to the microprocessor 112 of the printed circuit board 11, and after receiving the trigger signal, the microprocessor 112 controls the electromagnet The coil circuit 111 stops generating polarity; step D: when the user presses the keycap 18 to a third position, as shown in FIG. 4, the magnetic member 183 of the key cap 18 approaches the printed circuit board 11; Step E: When The magnetic sensor 12 senses that the magnetic element 183 of the keycap 18 stops moving, magnetically sexy The detector 12 transmits the coincidence signal to the microprocessor 112; and the step F: the microprocessor 112 of the printed circuit board 11 controls the electromagnet coil circuit 111 to generate the same polarity as the magnetic element 183 of the keycap 18, causing the keycap 18 to rise. To the first position.

In an embodiment of the invention, in step A, the magnetic element 183 can be an element covered by a magnetic coating or a thin magnet.

In the embodiment of the present invention, in step A, the magnetic element 183 may include a magnetic region and a non-magnetic region (not shown), and the position of the magnetic region may correspond to the electromagnet coil circuit 111 of the printed circuit board 11. .

In the embodiment of the present invention, in step B, the pivoting member 16 can be attracted by the magnetic member 183 of the keycap 18. When the user presses the keycap 18 downward, the pivoting member 16 will be disengaged from the magnetic member 183 of the keycap 18, and the disengagement force generated at this time can make the user feel the sense of the paragraph, thereby knowing that the action of pressing the keycap 18 has been completed. .

In this embodiment, in step B, as shown in FIGS. 2 to 4, the pivoting member 16 is movable in a circumferential manner to disengage the magnetic member 183 of the keycap 18. The pivot member 16 can be a free member that circulates circumferentially.

In this embodiment, in step B, the pivoting member 16 may be made of a metal material to facilitate the adsorption of the magnetic member 183 of the keycap 18.

In this embodiment, in step C, the microprocessor 112 can control the polarity and magnetic magnitude of the electromagnet coil circuit 111.

In this embodiment, step G is further included: in the standby state, the microprocessor 112 adjusts the polarity of the electromagnet coil circuit 111 such that the polarity of the electromagnet coil circuit 111 is different from the polarity of the magnetic element of the key cap 18, thereby The keycap 18 is attracted to the electromagnet coil circuit 111 of the printed circuit board 11. At this time, the keycap 18 can be adsorbed at the lowest height, which is convenient for the user to carry and carry.

In this embodiment, step H is repeated to include the microprocessor 112 turning off the electromagnet coil circuit 111 to cause the keycap 18 to assume a natural drop. The keycap 18 is in a state of natural decline, and is also convenient for the user to store and carry.

In the present invention, a magnetic element 183 is embedded in the keycap 18, and an electromagnet coil circuit 111, a microprocessor 112, and a magnetic sensor 12 are disposed on the printed circuit board 11, and the magnetism of the electromagnet coil circuit 111 on the printed circuit board 11 When the magnetic member 183 is the same as the magnetic member 183 in the keycap 18, the key cap 18 is raised. Otherwise, the key cap 18 is lowered, and then the magnetic force sensor 12 is disposed on the printed circuit board 11 to detect the magnetic force value to complete the trigger. The magnetic floating button method provided by the present invention makes the magnetic floating button method provided by the present invention easy to be used in a non-use state, so that the height of the button is lowered, so as to be conveniently stored and conveniently carried. Further, the magnetic attraction and separation of the magnetic member 183 can be performed by the pivoting member 16 and the magnetic member 183. The state changes to cause the damping to change with the pressing stroke position of the keycap 18, that is, the moment of the change from the magnetic attraction to the disengagement state causes the damping to suddenly drop, thereby generating a sense of passage, letting the user know that the pressing is effective pressing, and It is more labor-saving when pressed, so this creation achieves labor-saving operation, portability and a better experience.

However, the above-described embodiments are merely illustrative of the effects of the present invention, and are not intended to limit the present invention, and those skilled in the art can modify and modify the above embodiments without departing from the spirit and scope of the present invention. . In addition, the number of elements in the above-described embodiments is merely illustrative and is not intended to limit the invention. Therefore, the scope of the invention should be as set forth in the following claims.

A~F‧‧ steps

Claims (9)

A magnetic floating button method comprising the following steps: Step A: an electromagnet coil circuit of a printed circuit board generates the same polarity as a magnetic element of a keycap, causing the keycap to rise to a first position, the key cap One of the abutting portions abuts against a pivoting member, and the pivoting member is magnetically attracted to the magnetic member; and step B: when the user presses the keycap to a second position, the printed circuit board is located The magnetic sensor detects that the magnetic element of the keycap moves downward, the abutting member disengages the pivoting member from the magnetic component to generate a sense of passage; step C: the magnetic sensor transmits a Triggering a signal to a microprocessor of the printed circuit board, after receiving the trigger signal, the microprocessor controls the electromagnet coil circuit to stop generating polarity; Step D: when the user presses the keycap to a In the third position, the magnetic component of the keycap is close to the printed circuit board; Step E: when the magnetic sensor senses that the magnetic component of the keycap stops moving, the magnetic sensor transmits an unanimous signal To the microprocessor; F: The printed circuit board of the microprocessor control circuit of the electromagnetic coil to generate the same magnetic element of the polarity of the key top, so that the keycap raised to the first position. The magnetic floating button method according to claim 1, wherein in the step A, the magnetic component is a component covered by a magnetic coating or a thin magnet. The magnetic floating button method of claim 1, wherein in the step A, the magnetic element comprises a magnetic region and a non-magnetic region. The magnetic floating button method of claim 1, wherein in the step B, the pivoting member is adsorbed by the magnetic element of the keycap. The magnetic floating button method of claim 1, wherein in the step B, the pivoting member is moved in a circumferential manner to disengage the magnetic element of the keycap. The magnetic floating button method according to claim 1, wherein in the step B, the pivoting member is made of a metal material. The magnetic floating button method according to claim 1, wherein in the step C, the microprocessor controls the polarity and magnetic magnitude of the electromagnet coil circuit. The magnetic floating button method according to claim 1, further comprising the step G: in the standby state, the microprocessor adjusts the polarity of the electromagnet coil circuit to make the polarity of the electromagnet coil circuit and the key cap The magnetic elements have different polarities, which in turn causes the keycap to adsorb to the electromagnet coil circuit of the printed circuit board. The method of the maglev button according to claim 8 further includes the step H: the microprocessor turns off the electromagnet coil circuit so that the key cap exhibits a natural drop.