X-shaped magnetic induction type scissor key and mechanical keyboard

Abstract

The invention discloses an X-shaped magnetic induction type scissor foot key and a mechanical keyboard, the key is of an integral module type structure or a single module type structure, mature X-shaped scissor feet are utilized in the two structures, the X-shaped scissor feet are ingeniously combined with a unipolar magnetic induction chip, and the anti-interference performance is good. The magnetic induction type scissor foot key of the overall modular structure is well compatible with an existing scissor foot layout structure, meanwhile, the keyboard key is changed into a magnetic induction mode, and the service life of the key is greatly prolonged. The magnetic induction type scissor foot key of the single module type structure is flexible and convenient, and a keyboard formed by the key is long in service life and diverse in form. According to the invention, the keycap is pressed to move, the magnet passes through the magnetic pole horizontal induction critical surface of the unipolar magnetic induction chip, the magnetic pole of the magnet is reversed, the high level output by the unipolar magnetic induction chip is changed into the low level, the corresponding digital logic is changed into 0 from 1, and the natural switch attribute is realized.

Description

Technical Field

[0001] The invention relates to the field of keyboards, and in particular to an X-shaped magnetic induction scissor-foot key and a mechanical keyboard. Background Art

[0002] The existing magnetic axis keyboard adopts conventional track-type pressing, the keys take up a large space, the life is short when the pressing distance is small, the key cap is pressed with uneven force, the balance is poor, and the feel is not good.

[0003] 1. Ultra-thin magnetic axis buttons use conventional track-type pressing, the buttons take up a lot of space and are inconvenient to install.

[0004] 2. Ultra-thin magnetic axis keys use conventional track-type pressing, the key balance is poor, and the key life is short.

[0005] 3. Ultra-thin magnetic axis keys use conventional track-type pressing, the keys have poor balance and feel.

[0006] The technical solution with authorization announcement number CN219512994U and utility model patent name "A thin magnetic induction key structure" has a key structure including a keycap, a telescopic spring, a scissor-foot bracket, a base and a circuit board arranged from top to bottom, the scissor-foot bracket including an inner bracket and an outer bracket hingedly connected to each other, the telescopic spring is arranged on the base and against the keycap, magnets and a fixed shaft are arranged at both ends of the inner bracket, a Hall IC matching the magnet is arranged on the circuit board, a torsion spring is sleeved on the fixed shaft, the short torsion arm of the torsion spring is in contact with the side wall of the inner bracket, the long torsion arm of the torsion spring is snap-fitted with a spring arranged on the inner bracket, and a boss matching the long torque arm is arranged at the lower end of the keycap.

[0007] In the above technical solution, the magnet is facing the sensing surface of the Hall chip, and the magnet is always facing the sensing surface of the Hall chip when it moves. The working principle is: using the linear Hall to set the reference voltage value as the voltage threshold to set the on and off of the switch. It is greatly affected by external interference and the distance structure of the Hall and the magnet. The consistency of the conduction point is not good, the user experience is poor, and the cost of using AD is also high.

[0008] There is also a magnetic axis mechanical keyboard, in which the magnet faces the Hall chip, and then halfway through the movement, the polarity direction of the small magnet is reversed through a mechanical device to obtain a switch signal. The structure of this technical solution is too complicated and the cost is high, and the key life is short. It is not suitable for keyboards that are used more than tens of millions of times. Summary of the invention

[0009] The purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art and to provide an X-shaped magnetic induction scissor foot button.

[0010] Another object of the present invention is to provide a mechanical keyboard.

[0011] The purpose of the present invention is achieved through the following technical solutions:

[0012] An X-shaped magnetic induction scissor foot key, which is an integral modular structure, includes a scissor foot structure, an integral fixing plate, a key cap, and a reset spring; wherein the bottom of the scissor foot structure is connected to the integral fixing plate, the top of the scissor foot structure is connected to the key cap, and the reset spring is located between the integral fixing plate and the key cap, and is used to support and reset the scissor foot structure;

[0013] A magnet is fixed in the hollow part of the keycap, a first through hole and a second through hole are respectively opened on the PCB board and the integral fixing plate directly below the magnet, and a unipolar magnetic induction chip is arranged next to the first through hole;

[0014] The keycap with magnet is placed offset from the unipolar magnetic induction chip on the PCB board. The magnet is located on the side of the unipolar magnetic induction chip. When the keycap is pressed and moved, the magnet passes through the horizontal sensing critical surface of the unipolar magnetic induction chip. The magnetic pole of the magnet is reversed, and the high level output by the unipolar magnetic induction chip becomes a low level, and the corresponding digital logic changes from 1 to 0.

[0015] An X-shaped magnetic induction scissor foot key, which is a single-body modular structure, includes a scissor foot structure, a single-body key base with a bayonet, a key cap, a reset spring, and a single-body key fixing plate; wherein the bottom of the scissor foot structure is connected to the single-body key base with a bayonet, the top of the scissor foot structure is connected to the key cap, and the reset spring is located between the single-body key base and the key cap, and is used to support and reset the scissor foot structure;

[0016] A magnet is fixed in the hollow part of the keycap, and a third through hole and a fourth through hole are respectively opened on the PCB board and the single-body key fixing board directly below the magnet; a unipolar magnetic induction chip is arranged next to the third through hole; and a buckle of the single-body key base is fixed to the fourth through hole;

[0017] The keycap with magnet is placed offset from the unipolar magnetic induction chip on the PCB board. The magnet is located on the side of the unipolar magnetic induction chip. When the keycap is pressed and moved, the magnet passes through the horizontal sensing critical surface of the unipolar magnetic induction chip. The magnetic pole of the magnet is reversed, and the high level output by the unipolar magnetic induction chip becomes a low level, and the corresponding digital logic changes from 1 to 0.

[0018] An X-shaped magnetic induction scissor foot key is a single-body modular structure, comprising a scissor foot structure, a single-body key base with a bayonet, a key cap, a reset spring, and a PCB board; wherein the bottom of the scissor foot structure is connected to the single-body key base with a bayonet, the top of the scissor foot structure is connected to the key cap, the reset spring is located between the single-body key base and the key cap, and is used to support and reset the scissor foot structure; the buckle of the single-body key base is fixed to the square groove of the PCB board;

[0019] A magnet is fixed in the hollow part of the key cap, and a fifth through hole is opened on the PCB board directly below the magnet; a unipolar magnetic induction chip is arranged next to the fifth through hole; and a buckle of the single-body key base is fixed to the fifth through hole;

[0020] The keycap with magnet is placed offset from the unipolar magnetic induction chip on the PCB board. The magnet is located on the side of the unipolar magnetic induction chip. When the keycap is pressed and moved, the magnet passes through the horizontal sensing critical surface of the unipolar magnetic induction chip. The magnetic pole of the magnet is reversed, and the high level output by the unipolar magnetic induction chip becomes a low level, and the corresponding digital logic changes from 1 to 0.

[0021] The unipolar magnetic induction chip is a common unipolar magnetic induction chip, or a single data line unipolar magnetic induction chip, or a data line unipolar magnetic induction chip with LED function;

[0022] A single data line unipolar magnetic induction chip or a data line unipolar magnetic induction chip with an LED function is connected in series with unipolar magnetic induction chips of other buttons via a single bus data line;

[0023] The single bus data line transmits key information and color brightness information at the same time. The indicator lights in the magnetic axis mechanical keyboard are also controlled by the Hall serial input data line DIA and the Hall serial output data line DOA. The indicator lights include NUM, CAPS, and SCR.

[0024] An X-shaped magnetic induction scissor-foot button with an integral modular structure or a single modular structure: when the button is a special-shaped button, there are more than two corresponding fixed positions on the integral fixed plate; when the button is a regular button, there is one corresponding fixed position on the integral fixed plate.

[0025] An X-shaped magnetic induction scissor-foot button adopts an integral modular structure or a single modular structure: the scissor-foot structural component is an X-shaped bracket, and the unipolar magnetic induction chip is a patch-type unipolar magnetic induction chip.

[0026] An X-shaped magnetic induction scissor-foot key with an integral modular structure or a single modular structure: the magnet is integrally formed with the keycap, and the NS polarity of the magnet at the bottom of the keycap is in the vertical direction.

[0027] Another object of the present invention is achieved by the following technical solutions:

[0028] A mechanical keyboard adopts a plurality of the above-mentioned X-shaped magnetic induction scissor-foot keys.

[0029] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0030] 1. The X-shaped scissor-foot key is a mature key structure, which is widely used in notebook keyboards or similar ultra-thin independent keyboards. The present invention improves it with a spring structure and cooperates with a unipolar magnetic induction chip to greatly save hundreds of components. The structure is simple and reliable, which greatly reduces the cost of mechanical keyboards and has good anti-interference performance.

[0031] 2. The magnetic induction scissor-foot keys of the overall modular structure of the present invention are well compatible with the existing scissor-foot layout structure, and at the same time, the keyboard keys are changed into magnetic induction mode, which greatly prolongs the life of the keys. The magnetic induction scissor-foot keys of the single modular structure of the present invention are flexible and convenient, and the keyboard composed of them not only has a long life, but also has various forms.

[0032] 3. When the keycap of the present invention is pressed, the magnet passes through the horizontal sensing critical surface of the unipolar magnetic induction chip, the magnetic pole of the magnet is reversed, the high level output by the unipolar magnetic induction chip becomes a low level, and the corresponding digital logic changes from 1 to 0, which has a natural switch property. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is an exploded view of an X-shaped magnetic induction scissor-foot button without an LED as an integral module.

[0034] Figure 2 This is a schematic diagram of the assembly structure of a single integral modular X-shaped magnetic induction scissor foot button without LED.

[0035] Figure 3 It is a schematic diagram of the partial structure of a conventional X-shaped magnetic induction scissor foot button.

[0036] Figure 4 It is a schematic diagram of the partial structure of the special-shaped X-shaped magnetic induction scissor foot button.

[0037] Figure 5 It is a partial structural diagram of the PCB board of the overall modular X-shaped magnetic induction scissor foot button without LED.

[0038] Figure 6 Schematic diagram of a magnet not passing through the horizontal sensing critical surface of the magnetic pole of a unipolar magnetic sensing chip.

[0039] Figure 7 Schematic diagram of a magnet passing through the horizontal sensing critical surface of the magnetic pole of a unipolar magnetic sensing chip.

[0040] Figure 8 This is an exploded view of a single integral modular X-shaped magnetic induction scissor foot button without LED.

[0041] Fig. 9 It is a partial structural diagram of the PCB board of the overall modular X-shaped magnetic induction scissor foot button with LED.

[0042] Fig.10 This is an exploded view of a single-body modular X-shaped magnetic induction scissor-foot button with LED.

[0043] Fig.11 This is an exploded view of a single modular X-shaped magnetic induction scissor foot button with LED.

[0044] Fig.12 It is a partial structural diagram of the PCB board of a single modular X-shaped magnetic induction scissor foot button with LED.

[0045] Fig.13 The figure is a partial structural diagram of the PCB board of a single-body modular X-shaped magnetic induction scissor-foot button without LED.

[0046] Fig.14 This is an exploded view of another single-body modular X-shaped magnetic induction scissor-foot button with LED.

[0047] Fig.15 This is an exploded view of another single-unit modular X-shaped magnetic induction scissor-foot button with LED.

[0048] Fig.16 It is a partial structural diagram of the PCB board of another single-body modular X-shaped magnetic induction scissor-foot button with LED.

[0049] Fig.17 It is a partial structural diagram of the PCB board of another single-body modular X-shaped magnetic induction scissor-foot button without LED.

[0050] The meanings of the reference numerals are as follows:

[0051] 1-scissor foot structure, 2-integral fixing plate, 3-key cap, 4-reset spring, 5-magnet, 6-PCB board, 7-first through hole, 8-second through hole, 9-unipolar magnetic induction chip, 10-key decoration plate, 11-LED, 12-magnetic pole horizontal induction critical surface; 13-monomeric keypad fixing plate, 14-third through hole, 15-fourth through hole; 16-fifth through hole; 17-monomeric keypad base with bayonet. DETAILED DESCRIPTION

[0052] The present invention is further described in detail below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0053] Example 1

[0054] like Figures 1 to 8 , an X-shaped magnetic induction scissor foot key, which is an integral modular structure, includes a scissor foot structure 1, an integral fixing plate 2, a key cap 3, and a reset spring 4; wherein the bottom of the scissor foot structure 1 is connected to the integral fixing plate 2, and the top of the scissor foot structure 1 is connected to the key cap 3, and the reset spring 4 is located between the integral fixing plate 2 and the key cap 3, and is used to support and reset the scissor foot structure 1;

[0055] A magnet 5 is fixed in the hollow part of the key cap 3, a first through hole 7 and a second through hole 8 are respectively formed on the PCB board 6 and the integral fixing board 2 directly below the magnet 5, and a unipolar magnetic induction chip 9 is arranged next to the first through hole 7;

[0056] like Figure 6 and Figure 7 The keycap 3 with the magnet 5 is placed offset from the unipolar magnetic induction chip 9 on the PCB board 6. The magnet 5 is located on the side of the unipolar magnetic induction chip 9. When the keycap 3 is pressed to move, the magnet 5 passes through the magnetic pole horizontal induction critical surface 12 of the unipolar magnetic induction chip 9. The magnetic pole of the magnet 5 is reversed, and the high level output by the unipolar magnetic induction chip 9 becomes a low level. The corresponding digital logic changes from 1 to 0, which has a natural switch property.

[0057] The unipolar magnetic induction chip 9 is a data line unipolar magnetic induction chip with LED function; the overall LED packaging process is adopted, so its appearance is like an LED; the LED 11 is no longer separately arranged on the PCB board 6.

[0058] The single bus data line transmits key information and color brightness information at the same time. The indicator lights in the magnetic axis mechanical keyboard are also controlled by the Hall serial input data line DIA and the Hall serial output data line DOA. The indicator lights include NUM, CAPS, and SCR.

[0059] like Figure 3 When the key is a conventional key, the corresponding fixing position on the integral fixing plate 2 is one, and one key cap 3 corresponds to one scissor foot structure 1 and one return spring 4. Figure 4When the key is a special-shaped key, there are three corresponding fixing positions on the integral fixing plate 2. One keycap 3 corresponds to three scissor foot structures 1 and a reset spring 4. The middle scissor foot structure 1 has a reset spring 4 and a magnet, a unipolar magnetic induction chip 9, and an LED 11. The scissor foot structures 1 on both sides only play a supporting and balancing role. The integral fixing plate 2 is an integral fixing plate of a keyboard. There are as many fixing positions on the fixing plate as there are keys. Special keys will have more fixing positions corresponding to them for balance. Multiple keys are sleeved on the key decorative plate 10.

[0060] The scissor foot structure 1 is an X-shaped bracket, and the unipolar magnetic induction chip 9 is a patch-type unipolar magnetic induction chip 9. Each scissor foot key has an X-shaped bracket, and whether it is an integral module or a single module, there are four fixed structural points that are relatively fixed and movable with the bottom of the X-shaped bracket, and the top of the X-shaped bracket is connected and fixed with the four corners of the key cap 3.

[0061] The magnet 5 is integrally formed with the key cap 3 , and the NS polarity of the magnet 5 at the bottom of the key cap 3 is in the vertical direction.

[0062] A mechanical keyboard adopts a plurality of the above-mentioned X-shaped magnetic induction scissor-foot keys.

[0063] Example 2

[0064] like Fig. 9 Compared with the embodiment 1, the difference between the embodiment 2 is that a separate LED 11 is provided on the PCB board 6, and the unipolar magnetic induction chip 9 and the LED 11 are respectively arranged opposite to the first through hole 7 on the PCB board 6. Other identical parts will not be described in detail.

[0065] The unipolar magnetic induction chip 9 is a single data line unipolar magnetic induction chip, and the single data line unipolar magnetic induction chip is connected in series with the unipolar magnetic induction chips 9 of other buttons through a single bus data line;

[0066] The single bus data line transmits key information and color brightness information at the same time. The indicator lights in the magnetic axis mechanical keyboard are also controlled by the Hall serial input data line DIA and the Hall serial output data line DOA. The indicator lights include NUM, CAPS, and SCR.

[0067] Example 3

[0068] like Figures 10 to 12, an X-shaped magnetic induction scissor foot key, which is a single modular structure, includes a scissor foot structure 1, a single key base 17 with a bayonet, a key cap 3, a reset spring 4, and a single key fixing plate 13; wherein the bottom of the scissor foot structure 1 is connected to the single key base 17 with a bayonet, the top of the scissor foot structure 1 is connected to the key cap 3, and the reset spring 4 is located between the single key base and the key cap 3, and is used to support and reset the scissor foot structure 1;

[0069] A magnet 5 is fixed in the hollow part of the key cap 3, and a third through hole 14 and a fourth through hole 15 are respectively formed on the PCB board 6 and the single-body key fixing board 13 directly below the magnet 5; a unipolar magnetic induction chip 9 is arranged next to the third through hole 14; and a buckle of the single-body key base is fixed to the fourth through hole 15;

[0070] The keycap 3 with the magnet 5 is placed offset from the unipolar magnetic induction chip 9 on the PCB board 6. The magnet 5 is located on the side of the unipolar magnetic induction chip 9. When the keycap 3 is pressed to move, the magnet 5 passes through the magnetic pole horizontal induction critical surface 12 of the unipolar magnetic induction chip 9, the magnetic pole of the magnet 5 is reversed, and the high level output by the unipolar magnetic induction chip 9 becomes a low level, and the corresponding digital logic changes from 1 to 0.

[0071] The unipolar magnetic induction chip 9 is a common unipolar magnetic induction chip 9, or a single data line unipolar magnetic induction chip;

[0072] A single data line unipolar magnetic induction chip and the unipolar magnetic induction chips 9 of other buttons are connected in series via a single bus data line;

[0073] The single bus data line transmits key information and color brightness information at the same time. The indicator lights in the magnetic axis mechanical keyboard are also controlled by the Hall serial input data line DIA and the Hall serial output data line DOA. The indicator lights include NUM, CAPS, and SCR.

[0074] When the key is a special-shaped key, the number of corresponding fixing positions on the integral fixing plate 2 is more than two; when the key is a regular key, the number of corresponding fixing positions on the integral fixing plate 2 is one.

[0075] The scissor leg structure 1 is an X-shaped bracket, and the unipolar magnetic induction chip 9 is a patch-type unipolar magnetic induction chip 9 .

[0076] The magnet 5 is integrally formed with the key cap 3 , and the NS polarity of the magnet 5 at the bottom of the key cap 3 is in the vertical direction.

[0077] The key operation principle is the same as that in Embodiment 1 and will not be described in detail.

[0078] Example 4

[0079] like Fig.13Compared with Example 3, Example 4 differs mainly in that no separate LED 11 is provided on the PCB board 6, and only a unipolar magnetic induction chip 9 is provided; other identical parts will not be described in detail.

[0080] Example 5

[0081] like Figures 14 to 16 , an X-shaped magnetic induction scissor foot key, which is a single-body modular structure, includes a scissor foot structure 1, a single-body key base 17 with a bayonet, a key cap 3, a reset spring 4, and a PCB board 6; wherein the bottom of the scissor foot structure 1 is connected to the single-body key base 17 with a bayonet, and the top of the scissor foot structure 1 is connected to the key cap 3, and the reset spring 4 is located between the single-body key base and the key cap 3, and is used to support and reset the scissor foot structure 1; the buckle of the single-body key base is fixed to the square groove of the PCB board 6;

[0082] A magnet 5 is fixed in the hollow part of the key cap 3, and a fifth through hole 16 is opened on the PCB board 6 directly below the magnet 5; a unipolar magnetic induction chip 9 is arranged next to the fifth through hole 16;

[0083] The keycap 3 with the magnet 5 is placed offset from the unipolar magnetic induction chip 9 on the PCB board 6. The magnet 5 is located on the side of the unipolar magnetic induction chip 9. When the keycap 3 is pressed to move, the magnet 5 passes through the magnetic pole horizontal induction critical surface 12 of the unipolar magnetic induction chip 9, the magnetic pole of the magnet 5 is reversed, and the high level output by the unipolar magnetic induction chip 9 becomes a low level, and the corresponding digital logic changes from 1 to 0.

[0084] The unipolar magnetic induction chip 9 is a common unipolar magnetic induction chip 9, or a single data line unipolar magnetic induction chip, or a data line unipolar magnetic induction chip with LED function;

[0085] A single data line unipolar magnetic induction chip or a data line unipolar magnetic induction chip with LED function is connected in series with the unipolar magnetic induction chips 9 of other buttons via a single bus data line;

[0086] The single bus data line transmits key information and color brightness information at the same time. The indicator lights in the magnetic axis mechanical keyboard are also controlled by the Hall serial input data line DIA and the Hall serial output data line DOA. The indicator lights include NUM, CAPS, and SCR.

[0087] Compared with the third and fourth embodiments, the PCB board 6 of the fifth embodiment is an aluminum substrate, the single-body key fixing plate 13 (ie, a special plug-in shaft plate) is eliminated, and the PCB board 6 can also be a PCB board of ordinary material. Other identical parts are not described in detail.

[0088] The key operation principle is the same as that in Embodiment 1 and will not be described in detail.

[0089] Example 6

[0090] like Fig.17 Compared with the fifth embodiment, the sixth embodiment does not have a separate LED 11 disposed on the PCB board 6, but only a unipolar magnetic induction chip 9 is disposed; other identical parts will not be described in detail.

[0091] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. An X-shaped magnetic induction scissor foot button, characterized in that: It is an integral modular structure, including a scissor foot structure, an integral fixing plate, a key cap, and a reset spring; wherein the bottom of the scissor foot structure is connected to the integral fixing plate, the top of the scissor foot structure is connected to the key cap, and the reset spring is located between the integral fixing plate and the key cap, and is used to support and reset the scissor foot structure; A magnet is fixed in the hollow part of the keycap, a first through hole and a second through hole are respectively opened on the PCB board and the integral fixing plate directly below the magnet, and a unipolar magnetic induction chip is arranged next to the first through hole; The keycap with magnet is placed offset from the unipolar magnetic induction chip on the PCB board. The magnet is located on the side of the unipolar magnetic induction chip. When the keycap is pressed and moved, the magnet passes through the horizontal sensing critical surface of the unipolar magnetic induction chip. The magnetic pole of the magnet is reversed, and the high level output by the unipolar magnetic induction chip becomes a low level, and the corresponding digital logic changes from 1 to 0.

2. An X-shaped magnetic induction scissor foot button, characterized in that: It is a single modular structure, including a scissor foot structure, a single-body key base with a bayonet, a key cap, a reset spring, and a single-body key fixing plate; wherein the bottom of the scissor foot structure is connected to the single-body key base with a bayonet, the top of the scissor foot structure is connected to the key cap, and the reset spring is located between the single-body key base and the key cap, and is used to support and reset the scissor foot structure; A magnet is fixed in the hollow part of the keycap, and a third through hole and a fourth through hole are respectively opened on the PCB board and the single-body key fixing board directly below the magnet; a unipolar magnetic induction chip is arranged next to the third through hole; and a buckle of the single-body key base is fixed to the fourth through hole; The keycap with magnet is placed offset from the unipolar magnetic induction chip on the PCB board. The magnet is located on the side of the unipolar magnetic induction chip. When the keycap is pressed and moved, the magnet passes through the horizontal sensing critical surface of the unipolar magnetic induction chip. The magnetic pole of the magnet is reversed, and the high level output by the unipolar magnetic induction chip becomes a low level, and the corresponding digital logic changes from 1 to 0.

3. An X-shaped magnetic induction scissor foot button, characterized in that: It is a single modular structure, including a scissor foot structure, a single-body key base with a bayonet, a key cap, a reset spring, and a PCB board; wherein the bottom of the scissor foot structure is connected to the single-body key base with a bayonet, the top of the scissor foot structure is connected to the key cap, and the reset spring is located between the single-body key base and the key cap, and is used to support and reset the scissor foot structure; A magnet is fixed in the hollow part of the key cap, and a fifth through hole is opened on the PCB board directly below the magnet; a unipolar magnetic induction chip is arranged next to the fifth through hole; and a buckle of the single-body key base is fixed to the fifth through hole; The keycap with magnet is placed offset from the unipolar magnetic induction chip on the PCB board. The magnet is located on the side of the unipolar magnetic induction chip. When the keycap is pressed and moved, the magnet passes through the horizontal sensing critical surface of the unipolar magnetic induction chip. The magnetic pole of the magnet is reversed, and the high level output by the unipolar magnetic induction chip becomes a low level, and the corresponding digital logic changes from 1 to 0.

4. The X-shaped magnetic induction scissor-foot key according to any one of claims 1 to 3, characterized in that: The unipolar magnetic induction chip is a common unipolar magnetic induction chip, or a single data line unipolar magnetic induction chip, or a data line unipolar magnetic induction chip with LED function; A single data line unipolar magnetic induction chip or a data line unipolar magnetic induction chip with an LED function is connected in series with unipolar magnetic induction chips of other buttons via a single bus data line; The single bus data line transmits key information and color brightness information at the same time. The indicator lights in the magnetic axis mechanical keyboard are also controlled by the Hall serial input data line DIA and the Hall serial output data line DOA. The indicator lights include NUM, CAPS, and SCR.

5. The X-shaped magnetic induction scissor-foot key according to any one of claims 1 to 3, characterized in that: When the button is a special-shaped button, there are more than two corresponding fixing positions on the overall fixing plate; when the button is a regular button, there is one corresponding fixing position on the overall fixing plate.

6. The X-shaped magnetic induction scissor-foot key according to any one of claims 1 to 3, characterized in that: The scissor leg structural member is an X-shaped bracket, and the unipolar magnetic induction chip is a patch-type unipolar magnetic induction chip.

7. The X-shaped magnetic induction scissor-foot key according to any one of claims 1 to 3, characterized in that: The magnet is integrally formed with the key cap, and the NS polarity of the magnet at the bottom of the key cap is in the vertical direction.

8. A mechanical keyboard, characterized in that: A plurality of X-shaped magnetic induction scissor foot buttons as described in claims 1 to 3 are used.

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