A low-magnetic-shaft key structure and a magnetic-shaft keyboard

Abstract

The utility model relates to key switch technical field discloses a kind of short magnetic shaft key structure, the short magnetic shaft key structure provided by the utility model, including base, one side is provided with PCB board, and magnetic sensing element is arranged on PCB board;Upper cover, pivot core is movably arranged, and elastic member is arranged between pivot core and base, and magnetic piece is arranged on pivot core, and magnetic piece is oppositely arranged with magnetic sensing element;Guide structure, it is arranged at the outside of elastic member, and guide structure extends to pivot core inside;And switch assembly, it is between base and pivot core, and with PCB board electric connection, pivot core is pressed down and rebound, and switch assembly controls the switching of the working state and non-working state of magnetic sensing element;The magnetic shaft keyboard provided by the utility model includes the short magnetic shaft key structure described above.The utility model plays the technical effect of reducing the energy consumption of short magnetic shaft key, reducing its temperature, and being conducive to prolonging the service life of short magnetic shaft key.

Description

Technical Field

[0001] This utility model belongs to the field of key switch technology, specifically relating to a low-profile magnetic axis key structure and a magnetic axis keyboard. Background Technology

[0002] As one of the computer input devices, the keyboard is a core component of human-computer interaction. The performance of its key structure directly affects the user's input experience and the overall performance of the device. With the popularization of mechanical keyboards, magnetic axis keys have gradually replaced traditional mechanical switches due to their advantages of no physical contact wear, rapid triggering, and long lifespan.

[0003] A magnetic axis button consists of a base and a core, with an elastic element between them. The core resets after being pressed via this element. A magnetic element is located on the core, while the base houses a magnetic sensing element for sensing the core. The magnetic axis button operates based on the magnetic coupling effect. The interaction between the magnetic element and the magnetic sensing element triggers and resets the button. When the button is pressed, the displacement of the core and magnetic element changes the magnetic flux of the coil within the magnetic sensing element, generating an electrical signal to trigger the input command. When the button is released, the core and magnetic element reset via the elastic element.

[0004] Based on the difference in key travel and magnetic component height, magnetic axis keys can be divided into high-axis keys and low-axis keys. Among them, the internal structure of low-axis keys is highly compressed, and the size of the magnetic component is reduced. In order to reach the trigger threshold, low-axis keys usually need to increase the coil drive current of the magnetic sensing element. When the magnetic sensing element is constantly energized, low-axis keys consume more energy and are prone to overheating. Difficulty in keyboard heat dissipation may lead to damage to low-axis keys. Utility Model Content

[0005] To address the shortcomings of the prior art, this utility model provides a low-profile magnetic axis key structure and a magnetic axis keyboard. The guide component guides the movement of the axis core. During the pressing and resetting of the axis core, the switch component switches the working and non-working states of the magnetic sensing element. When the axis core is pressed, the magnetic sensing element switches to the working state and is energized. Compared with the magnetic sensing element being constantly energized, this helps to save energy consumption, reduce temperature, and extend the service life of the low-profile magnetic axis key.

[0006] The technical effects to be achieved by this utility model are realized through the following technical aspects: Firstly, this utility model provides a low-profile magnetic axis button structure, including... The base has a PCB board on one side, and a magnetic sensing element is installed on the PCB board; The top cover has a movable shaft core, and an elastic element for resetting after being pressed is provided between the shaft core and the base. A magnetic element is provided on the shaft core, and the magnetic element is arranged opposite to the magnetic sensing element. A guide structure, disposed on the outside of the elastic member, extending into the shaft core, the guide structure serving to guide and restrict the displacement of the shaft core; and A switch assembly is disposed between the base and the shaft core and is electrically connected to the PCB board. When the shaft core is pressed down and springs back, the switch assembly controls the switching between the working state and the non-working state of the magnetic sensing element.

[0007] In some implementations, the guide structure includes a guide post disposed on one side of the elastic element, a guide groove is formed on the shaft core, the guide post extends into the guide groove and slides within the guide groove.

[0008] In some implementations, the guide post includes a reinforcing part connected to the base, and the shaft has a positioning opening for avoiding the reinforcing part.

[0009] In some implementations, the shaft core includes a fixing part with a receiving groove, the magnetic element is disposed in the receiving groove, and the elastic element is sleeved on the outside of the fixing part.

[0010] In some implementations, the base includes a limiting part, which is disposed opposite to the fixing part and forms a clearance space between the limiting part and the fixing part for the movement of the fixing part, and the elastic member passes through the inner side of the limiting part.

[0011] In some implementations, the switch assembly includes: a first spring contact disposed on the base and electrically connected to the PCB board; a second spring contact disposed on the base and abutting against the first spring contact to conduct electricity, the second spring contact being electrically connected to the PCB board; and a push block disposed on the shaft core, the shaft core driving the push block to move, the push block separating the abutting first spring contact and the second spring contact, or the push block moving away to make the first spring contact and the second spring contact abut and conduct electricity, the push block switching the conduction state of the first spring contact and the second spring contact.

[0012] In some implementations, a connector is provided on the PCB board, and the first spring and the second spring penetrate the PCB board and respectively contact the connector.

[0013] In some implementations, the base includes multiple support portions disposed on one side of the elastic member, and slots are provided on the support portions. The first spring piece and the second spring piece are respectively inserted into the corresponding slots for engagement.

[0014] In some implementations, a sound-emitting platform is provided on the base, the shaft core is pressed down, and the magnetic component strikes the sound-emitting platform.

[0015] Secondly, this utility model provides a magnetic axis keyboard, including the low-profile magnetic axis key structure described above.

[0016] In summary, this utility model has at least the following advantages: The low-profile magnetic axis key structure and magnetic axis keyboard provided by this utility model, when the axis core is pressed, the axis core moves relative to the upper cover and compresses the elastic element. The axis core controls the magnetic sensing element to switch to the working state through the switch assembly, that is, the switch assembly transmits a signal to the PCB board, and the magnetic sensing element is in the energized state. When the axis core is released, the elastic element drives the axis core to spring back and reset. The axis core controls the magnetic sensing element to switch to the non-working state through the switch assembly. During the movement of the axis core, the switch assembly realizes the back-and-forth switching of the working state and non-working state of the magnetic sensing element.

[0017] The magnetic sensing element only switches to the working state after the shaft core is pressed. The magnetic sensing element does not need to be in a energized state all the time, which helps to reduce power consumption and heat generation. This reduces the phenomenon of high temperature sensing failure in the low magnetic shaft button structure. At the same time, the guide structure guides and restricts the displacement of the shaft core. The precise movement of the shaft core can ensure the consistency of signal conversion. The magnetic sensing element switches the state accurately and the input is stable, thereby reducing the power consumption of the magnetic sensing element. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the base and top cover of a specific embodiment of the present utility model.

[0019] Figure 2 This is an exploded view of the base and top cover of a specific embodiment of the present utility model.

[0020] Figure 3 This is a side view of a low magnetic shaft button structure according to a specific embodiment of the present invention.

[0021] Figure 4 This is an exploded view of the shaft and base according to a specific embodiment of the present utility model.

[0022] Figure 5 This is an exploded view of a short magnetic shaft button structure according to a specific embodiment of the present invention.

[0023] Figure 6 This is a cross-sectional view of a short magnetic shaft button structure according to a specific embodiment of the present invention.

[0024] Figure 7 This is a cross-sectional view of the switch assembly according to a specific embodiment of the present invention.

[0025] Marked in the image: 1. Base; 11. Limiting part; 12. Support part; 121. Slot; 13. Outer groove; 14. Clearance space; 15. Sound-emitting platform; 2. PCB board; 21. Connector; 3. Magnetic sensing element; 4. Top cover; 41. Hook part; 5. Shaft core; 51. Elastic element; 52. Magnetic element; 53. Positioning port; 54. Fixing part; 541. Receiving groove; 6. Guide structure; 61. Guide post; 611. Reinforcing part; 62. Guide groove; 7. Switch assembly; 71. First spring; 72. Second spring; 73. Push block; 8. Middle plate. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are some, but not all, of the embodiments of this utility model.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] Example 1: Please see Figures 1-3 The present invention discloses a low-profile magnetic shaft button structure, comprising a base 1, a PCB board 2 on one side of the base 1, specifically, a positioning post at the bottom of the base 1, the positioning post passing through the PCB board 2, and the PCB board 2 being connected to the bottom of the base 1. A magnetic sensing element 3 is disposed on the PCB board 2, specifically, the magnetic sensing element 3 may be a Hall element, which is soldered onto the PCB board 2.

[0029] The base 1 has a top cover 4, and a spindle 5 is movably mounted on the top cover 4. The top of the spindle 5 is a cross-shaped axle, which can be used to connect keycaps or other components. An elastic element 51 for resetting after being pressed is provided between the spindle 5 and the base 1. Specifically, the elastic element 51 is preferably, but not limited to, a spring. When the spindle 5 is pressed, the elastic element 51 is compressed and deformed. When the spindle 5 is released, the elastic element 51 drives the spindle 5 to reset.

[0030] A guide structure 6 is provided on the outer side of the elastic element 51, extending into the shaft core 5. The guide structure 6 is used to guide and restrict the displacement of the shaft core 5. The extension and contraction of the elastic element 51 will generate a lateral force, which may cause the shaft core 5 to deviate during movement. The shaft core 5 is prone to shaking during operation, which will affect the accuracy of the action. The guide structure 6 can restrict the direction of movement of the shaft core 5, which helps to improve the stability of the movement of the shaft core 5 and ensure the consistency of signal conversion.

[0031] A magnetic element 52 is provided on the shaft core 5, and the magnetic element 52 is arranged opposite to the magnetic sensing element 3. The magnetic element 52 can be a magnet. The magnetic element 52 is located at the center of the shaft core 5 and is coaxially arranged with the magnetic sensing element 3. The magnetic element 52 moves closer to or further away from the magnetic sensing element 3 as the shaft core 5 moves, which can realize the triggering or resetting of the low magnetic shaft button structure.

[0032] A switch assembly 7 is provided between the shaft core 5 and the base 1. The switch assembly 7 is electrically connected to the PCB board 2. During the pressing and springback reset process of the shaft core 5, the switch assembly 7 controls the magnetic sensing element 3 to switch between working and non-working states. The magnetic sensing element 3 is energized when it is working and de-energized or in a low-energy sleep state when it is not working.

[0033] In the free state, the shaft core 5 is not pressed, and the magnetic sensing element 3 is in a non-working state. When the shaft core 5 is pressed, the switch assembly 7 sends a signal to the PCB board 2, thereby controlling the magnetic sensing element 3 to be energized, and the magnetic sensing element 3 switches to the working state. When the shaft core 5 is released, the elastic element 51 drives the shaft core 5 to reset, and the shaft core 5 returns to the free state, and the magnetic sensing element 3 is de-energized. The magnetic sensing element 3 can switch between working and non-working states. Compared with the traditional magnetic sensing element 3 being continuously energized, this helps to reduce energy consumption and heat generation, and the low-profile magnetic shaft button structure provides stable input.

[0034] Example 2: The difference between this embodiment and Embodiment 1 is that this embodiment further optimizes the structure of the guide structure 6 of this utility model. Please refer to [link / reference]. Figures 4-6 .

[0035] Please see Figure 4 The guide structure 6 in this embodiment includes guide posts 61, which are disposed on one side of the elastic member 51. Specifically, there may be two guide posts 61, which are disposed on both sides of the elastic member 51 to improve the stability of the movement of the shaft core 5. It is understood that this is not a specific limitation on the number of guide posts 61, and those skilled in the art can adjust it according to actual needs.

[0036] A guide groove 62 is provided on the shaft core 5, and the guide groove 62 is correspondingly arranged with the guide post 61. The height of the guide post 61 is higher than the height of the base 1 so that it extends into the guide groove 62. In some specific embodiments, when the shaft core 5 is in a free state, the end of the guide post 61 is still in the guide groove 62. When the shaft core 5 is pressed, the end of the guide post 61 penetrates into the guide groove 62 and slides within the guide groove 62. The guide post 61 and the guide groove 62 cooperate to not only guide the displacement of the shaft core 5, but also prevent the shaft core 5 from detaching from the top cover 4. At the same time, the guide structure 6 can meet the 3.2mm stroke requirement of the low magnetic shaft, which is suitable for thinner magnetic shaft button structures.

[0037] Please see Figure 4 and Figure 5 In a preferred embodiment, the guide post 61 includes a reinforcing part 611, which is connected to the base 1, thereby improving the structural strength of the guide post 61. The shaft core 5 is provided with a positioning port 53 for avoiding the reinforcing part 611. The positioning port 53 is connected to the guide groove 62. When the shaft core 5 is pressed to the maximum stroke, the reinforcing part 611 passes through the positioning port 53.

[0038] Please see Figure 6 In a preferred embodiment, the shaft core 5 includes a fixing part 54, on which a receiving groove 541 is provided. A magnetic element 52 is disposed in the receiving groove 541. Specifically, the fixing part 54 may be a convex ring, and the elastic element 51 is sleeved on the outside of the fixing part 54. The guide groove 62 is located on the outside of the fixing part 54 and may be an arc-shaped groove with the same center as the fixing part 54. The guide post 61 is adapted to the guide groove 62, which helps to further reduce the shaking of the shaft core 5 and improve the movement accuracy of the shaft core 5.

[0039] The base 1 includes a limiting part 11, which may be a convex ring. The limiting part 11 is disposed opposite to the fixing part 54, and a clearance space 14 for the movement of the fixing part 54 is formed between the limiting part 11 and the fixing part 54. The elastic member 51 is sleeved on the outside of the limiting part 11. The limiting part 11 and the fixing part 54 respectively support the two ends of the elastic member 51, which can optimize the magnetic circuit and make the low magnetic shaft button structure compact while shortening the overall height of the upper cover 4 and the base 1.

[0040] Furthermore, a sound-emitting platform 15 is provided at the center of the limiting part 11. The sound-emitting platform 15 is a boss. When the shaft core 5 is pressed down, the magnetic component 52 strikes the sound-emitting platform 15, producing a HiFi sound. When lubricating oil is applied to improve the feel, excess oil flows into the limiting part 11, reducing the amount of lubricating oil residue on the surface of the sound-emitting platform 15. This effectively solves the problem of oil sticking to the bottom of the magnetic component 52 and the surface of the sound-emitting platform 15 when the shaft core 5 is pressed all the way down, causing a muffled and unclear sound. In addition, when the shaft core 5 is pressed all the way down, the bottom of the magnetic component 52 does not slip in contact with the surface of the sound-emitting platform 15, which helps to reduce the shaking of the shaft core 5.

[0041] Example 3: The difference between this embodiment and the above embodiments is that this embodiment further optimizes the structure of the switch assembly 7 of this utility model. Please refer to [link to relevant documentation]. Figure 5 and Figure 7 .

[0042] Please see Figure 5 In this embodiment, the base 1 includes multiple support portions 12, which are disposed on one side of the elastic member 51, and slots 121 are provided on the support portions 12. The switch assembly 7 includes a first spring 71 and a second spring 72, which are respectively inserted into the corresponding slots 121 to achieve snap-fit ​​fixation.

[0043] The first spring 71 and the second spring 72 abut against each other to conduct electricity and are electrically connected to the PCB board 2 respectively. Specifically, a connector 21 is provided on the side of the PCB board 2 away from the base 1. Specifically, the connector 21 can be soldered onto the PCB board 2. The first spring 71 and the second spring 72 pass through the base 1 and the PCB board 2 respectively, and are then inserted into the connector 21 and connected to the connector 21.

[0044] Please see Figure 7 A push block 73 is provided on the shaft core 5. The push block 73 is an insulating block. The shaft core 5 drives the push block 73 to move synchronously. The push block 73 can separate the first spring piece 71 and the second spring piece 72 that are in contact, or the push block 73 can move away so that the first spring piece 71 and the second spring piece 72 are in contact and conduction. The push block 73 switches the conduction state of the first spring piece 71 and the second spring piece 72.

[0045] Specifically, when the switch assembly 7 is a normally open switch, the push block 73 in its free state is located between the first spring 71 and the second spring 72. The first spring 71 and the second spring 72 are not in contact and are conducting, so the switch assembly 7 is in the open state, that is, the magnetic sensing element 3 is de-energized and in a non-working state. When the shaft core 5 is pressed, the push block 73 exits from between the first spring 71 and the second spring 72. The first spring 71 and the second spring 72 come into contact with each other and conduct under their own elasticity. The PCB board 2 receives the signal, and the magnetic sensing element 3 is energized to be in a working state. When the shaft core 5 is released, the push block 73 separates the first spring 71 and the second spring 72 again. The first spring 71 and the second spring 72 are not in contact and are conducting, and the magnetic sensing element 3 returns to the de-energized and non-working state.

[0046] When the switch assembly 7 is a normally closed switch, the first spring 71 and the second spring 72, in their free state, abut against each other and remain closed. The push block 73 is located on one side of the first spring 71 and the second spring 72. Those skilled in the art can, as needed, position the push block 73 at the bottom or top of the first spring 71 and the second spring 72 so that the push block 73 is in a state where the first spring 71 and the second spring 72 are not separated. When the shaft core 5 is pressed, the push block 73 enters between the first spring 71 and the second spring 72, separating the first spring 71 and the second spring 72. At this time, the switch assembly 7 is in an open state. After the switch assembly 7 switches from the closed state to the open state, the PCB board 2 receives a signal, energizing the magnetic sensing element 3 to put it into working state. When the shaft core 5 is released, the push block 73 moves away from the first spring 71 and the second spring 72, and the first spring 71 and the second spring 72 return to the abutting state. The switch assembly 7 switches back from the open state to the closed state, and the magnetic sensing element 3 is de-energized to return to a non-working state.

[0047] Whether the switch assembly 7 is a normally open switch or a normally closed switch, when the shaft core 5 is pressed, the switch assembly 7 will switch between open and closed states, and the magnetic sensing element 3 will enter the working state. When the shaft core 5 is reset, the switch assembly 7 will switch between open and closed states again. At this time, the magnetic sensing element 3 will return from the working state to the non-working state. The non-working state can be a power-off state or a low-power sleep state.

[0048] In some specific embodiments, the first spring 71 and the second spring 72 can both be bent to form contact ends, the contact ends are arc-shaped, and the push block 73 can be rhomboid. The push block 73 contacts the first spring 71 and the second spring 72 at the inclined surface, which is conducive to the push block 73 smoothly separating the first spring 71 and the second spring 72.

[0049] Please see Figure 5 In a preferred embodiment, a middle plate 8 is fitted on the outside of the base 1, and an outer groove 13 is formed on the outer wall of the base 1. The upper cover 4 includes a hook part 41, which passes through the middle plate 8 at the outer groove 13 and can restrict the upper cover 4 from falling out.

[0050] Example 4: This embodiment, based on the above embodiments, provides a magnetic axis keyboard, including the aforementioned low-profile magnetic axis key structure. The magnetic axis keyboard of this invention has low power consumption, reduced heat generation, and is beneficial for extending its service life. At the same time, the low-profile magnetic axis key structure has a compact internal structure, resulting in a thin keyboard that is easy to carry.

[0051] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0052] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0053] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0054] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0055] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the spirit and scope of the appended claims.

Claims

1. A low-profile magnetic shaft button structure, characterized in that, include: The base (1) has a PCB board (2) on one side, and a magnetic sensing element (3) is provided on the PCB board (2); The top cover (4) is movably provided with a shaft core (5), and an elastic element (51) for resetting after being pressed is provided between the shaft core (5) and the base (1). A magnetic element (52) is provided on the shaft core (5), and the magnetic element (52) is arranged opposite to the magnetic sensing element (3). A guide structure (6) is disposed on the outside of the elastic member (51), the guide structure (6) extends into the shaft core (5), and the guide structure (6) is used to guide and restrict the displacement of the shaft core (5); as well as A switch assembly (7) is disposed between the base (1) and the shaft core (5) and is electrically connected to the PCB board (2). When the shaft core (5) is pressed down and springs back, the switch assembly (7) controls the switching between the working state and the non-working state of the magnetic sensing element (3).

2. The low-profile magnetic shaft button structure according to claim 1, characterized in that, The guide structure (6) includes a guide post (61), which is located on one side of the elastic member (51). A guide groove (62) is provided on the shaft core (5). The guide post (61) extends into the guide groove (62) and slides within the guide groove (62).

3. The low-profile magnetic shaft button structure according to claim 2, characterized in that, The guide post (61) includes a reinforcing part (611), which is connected to the base (1). The shaft core (5) has a positioning port (53) for avoiding the reinforcing part (611).

4. The low-profile magnetic shaft button structure according to claim 2, characterized in that, The shaft core (5) includes a fixing part (54), a receiving groove (541) is provided on the fixing part (54), the magnetic element (52) is disposed in the receiving groove (541), and the elastic element (51) is sleeved on the outside of the fixing part (54).

5. The low-profile magnetic shaft button structure according to claim 4, characterized in that, The base (1) includes a limiting part (11), which is disposed opposite to the fixing part (54) and forms a clearance space (14) between the limiting part (11) and the fixing part (54) for the movement of the fixing part (54). The elastic member (51) passes through the inner side of the limiting part (11).

6. The low-profile magnetic shaft button structure according to claim 1, characterized in that, The switching assembly (7) includes: The first spring clip (71) is disposed on the base (1) and electrically connected to the PCB board (2); A second spring (72) is disposed on the base (1) and abuts against the first spring (71) to conduct electricity; the second spring (72) is electrically connected to the PCB board (2); and A push block (73) is disposed on the shaft core (5). The shaft core (5) drives the push block (73) to move. The push block (73) separates the first spring piece (71) and the second spring piece (72) that are in contact, or the push block (73) moves away so that the first spring piece (71) and the second spring piece (72) are in contact and connected. The push block (73) switches the connected state of the first spring piece (71) and the second spring piece (72).

7. The low-profile magnetic shaft button structure according to claim 6, characterized in that, A connector (21) is provided on the PCB board (2), and the first spring (71) and the second spring (72) penetrate the PCB board (2) and contact the connector (21) respectively.

8. The low-profile magnetic shaft button structure according to claim 6, characterized in that, The base (1) includes a plurality of support parts (12), which are disposed on one side of the elastic member (51). The support parts (12) are provided with slots (121), and the first spring piece (71) and the second spring piece (72) are respectively inserted into the corresponding slots (121) for engagement.

9. The low-profile magnetic shaft button structure according to claim 1, characterized in that, A sound-emitting platform (15) is provided on the base (1). When the shaft core (5) is pressed down, the magnetic component (52) strikes the sound-emitting platform (15).

10. A magnetic axis keyboard, characterized in that, Includes the low magnetic shaft button structure described in any one of claims 1-9.

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