Key structure and keyboard

Abstract

This utility model discloses a key structure and a keyboard, relating to the field of keyboard technology. The key structure includes a base, a core, and a magnetic sensing module. The core moves axially within the base. The magnetic sensing module includes a magnetic element and a magnetic sensing unit. The magnetic sensing unit is located on the base, and the magnetic element is located on the core. The magnetic poles of the magnetic element are distributed parallel to the axial direction of the core, and the magnetic sensing unit is located below the magnetic element. The technical solution provided by this utility model can improve the sensitivity of magnetic axis keys.

Description

Technical Field

[0001] This utility model relates to the field of keyboard technology, and in particular to a key structure and a keyboard. Background Technology

[0002] Magnetic axis buttons, a new type of button technology, utilize a magnet and Hall effect sensor inside the button to detect the button's state by observing changes in the magnetic field, thus triggering a signal. Because there are no physical contacts, magnetic axis buttons eliminate mechanical wear during triggering, significantly extending their lifespan. Magnetic axis buttons offer fast response times, detecting button movement and generating corresponding signals in a very short time, providing users with a smoother operating experience. Furthermore, magnetic axis buttons support adjustable trigger and reset travel, allowing users to personalize the button's trigger sensitivity according to their usage habits and needs.

[0003] Despite the numerous advantages mentioned above, magnetic axis buttons still present some challenges in practical applications, particularly regarding trigger sensitivity. Currently available magnetic axis buttons have room for improvement in trigger sensitivity. On some magnetic axis buttons, the Hall sensor's stability in recognizing changes in the magnetic field is poor during rapid, continuous clicking, impacting the user experience. Furthermore, the sensitivity adjustment range of magnetic axis buttons is relatively limited, failing to meet the extreme sensitivity requirements of some professional users. Utility Model Content

[0004] The main purpose of this invention is to propose a key structure and keyboard that aims to improve the sensitivity of magnetic axis keys.

[0005] To achieve the above objectives, the button structure proposed in this utility model includes:

[0006] Base;

[0007] The shaft core moves axially within the base;

[0008] A magnetic sensing module includes a magnetic component and a magnetic sensing unit. The magnetic sensing unit is disposed on the base, the magnetic component is disposed on the shaft core, and the magnetic pole distribution direction of the magnetic component is parallel to the axial direction of the shaft core. The magnetic sensing unit is located below the magnetic component.

[0009] In one embodiment, the magnetic element is disposed on the side of the shaft core and is disposed opposite to the magnetic sensing unit.

[0010] In one embodiment, the outer surface of the shaft core has a protrusion facing the magnetic sensing unit, and a first cavity is provided inside the protrusion, with the magnetic element disposed in the first cavity.

[0011] In one embodiment, the boss is integrally formed with the magnetic component.

[0012] In one embodiment, the magnetic sensing module includes wiring pins extending to the bottom of the base, and a circuit board having the wiring pins. The magnetic sensing unit is disposed between the circuit board and the base and is connected to the circuit board.

[0013] In one embodiment, the wiring pins include a first pin and a second pin. The first pin has two parts. One of the first pins and the second pin are electrically connected to the positive and negative terminals of the circuit board, respectively. The other first pin is electrically connected to the magnetic induction unit.

[0014] In one embodiment, the wiring pins are formed by repeated bending to create a pressure-resistant structure.

[0015] In one embodiment, the button structure further includes a pin socket, which is disposed on the base and connected to the circuit board, and the wiring pin is embedded in the pin socket.

[0016] In one embodiment, the pin socket has a clearance opening corresponding to the magnetic induction unit.

[0017] This utility model also proposes a keyboard, comprising:

[0018] Button structure;

[0019] The main circuit board is electrically connected to the button structure, and the main circuit board is provided with at least three terminals.

[0020] In the technical solution of this utility model, the magnetic poles of the magnetic component are distributed along the axial direction of the shaft core. Therefore, when the shaft core moves downward, the magnetic field strength sensed by the magnetic sensing unit will increase significantly, so that the magnetic sensing unit can more accurately and obviously sense the change in magnetic field strength, thereby improving the sensitivity of the button structure being triggered. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 A schematic diagram of a keyboard embodiment provided by this utility model;

[0023] Figure 2 A cross-sectional view of an embodiment of the button structure provided by this utility model;

[0024] Figure 3 for Figure 2 Exploded view of the embodiment shown;

[0025] Figure 4 for Figure 2 A schematic diagram of the structure of the central base.

[0026] Explanation of icon numbers:

[0027] 100. Base; 11. Mounting hole; 12. Guide groove;

[0028] 200. Housing; 21. Receiving cavity; 22. Elastic reset element;

[0029] 300. Shaft core; 31. Shaft column; 32. Shaft housing; 321. Guide protrusion; 322. Second cavity; 33. Pressing part; 34. Boss; 341. First cavity;

[0030] 400. Magnetic induction module; 41. Circuit board; 411. Magnetic induction unit; 412. Wiring pin; 413. First pin; 414. Second pin; 42. Magnetic component;

[0031] 500. Pin socket; 51. Clearance opening;

[0032] 600. Main circuit board.

[0033] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0035] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0036] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0037] This utility model proposes a button structure.

[0038] Please see Figures 1 to 4 In one embodiment of this utility model, the button structure includes:

[0039] Base 100;

[0040] The shaft core 300 moves axially within the base 100;

[0041] The magnetic sensing module 400 includes a magnetic element 42 and a magnetic sensing unit 411. The magnetic sensing unit 411 is disposed on the base 100, the magnetic element 42 is disposed on the shaft core 300, and the magnetic pole distribution direction of the magnetic element 42 is parallel to the axial direction of the shaft core 300. The magnetic sensing unit 411 is located below the magnetic element 42.

[0042] In the technical solution of this utility model, the magnetic poles of the magnetic component 42 are distributed along the axial direction of the core 300. Therefore, when the core 300 moves downward, the magnetic field strength sensed by the magnetic sensing unit 411 will increase significantly, so that the magnetic sensing unit 411 can more accurately and obviously sense the change in magnetic field strength, thereby improving the sensitivity of the button structure being triggered.

[0043] In one embodiment, the magnetic element 42 is disposed on the side of the shaft core 300 and opposite to the magnetic sensing unit 411. This helps the distance and relative position between the magnetic element 42 and the magnetic sensing unit 411 to change significantly and regularly as the shaft core 300 moves, thereby making the change in the magnetic field strength and direction of the magnetic sensing unit 411 more obvious. This effectively improves the sensing sensitivity of the magnetic sensing unit 411 to the displacement of the shaft core 300, allowing every minute movement of the button to be accurately sensed and converted into a corresponding signal, achieving more precise button operation control. The fact that both the magnetic element 42 and the magnetic sensing unit 411 are located on the side of the shaft core 300 provides more possibilities for the arrangement of other components within the limited space between the shaft core 300 and the base 100. Without significantly increasing the axial dimension of the button structure, the lateral space of the shaft core 300 is rationally utilized, making the layout of the entire button structure more compact and flexible. In other embodiments, the magnetic element 42 may be disposed inside the shaft core 300, and the magnetic sensing unit 411 may be disposed on the lower or side side of the shaft core 300.

[0044] In one embodiment, a boss 34 protrudes from the outer surface of the shaft core 300 toward the magnetic sensing unit 411, and a first cavity 341 is provided inside the boss 34. The magnetic element 42 is disposed in the first cavity 341. The boss 34 allows the magnetic element 42 to be positioned close to the top of the magnetic sensing unit 411, making the change in magnetic field strength detected by the magnetic sensing unit 411 more obvious, which helps to enhance the sensitivity of the button structure. Furthermore, the shaft core 300 includes a shaft column 31, a shaft housing 32, and a pressing part 33. The shaft column 31 is located at the lower end of the shaft housing 32, and the pressing part 33 is located at the upper end of the shaft housing 32. A boss 34 is located on the side of the shaft housing 32 near the magnetic module 400. A second cavity 322 is provided at the lower end of the shaft housing 32. The first cavity 341 and the second cavity 322 are arranged in parallel in the transverse direction. The shaft column 31 extends downward from the second cavity 322. That is, the boss 34 is positioned to provide ample space for the second cavity 322 to allow the shaft column 31 to extend. Furthermore, guide protrusions 321 are provided on opposite sides of the shaft housing 32. The base 100 is provided with guide grooves 12 corresponding to the guide protrusions 321. The guide protrusions 321 are slidably connected in the height direction within the guide grooves 12. This design restricts the horizontal sway of the shaft core 300 when it moves vertically, preventing the magnetic component 42 from moving axially around the shaft core 300 during vertical movement. In other words, it fixes the position of the magnetic component 42 relative to the magnetic sensing unit 411, effectively reducing displacement fluctuations between the magnetic component 42 and the magnetic sensing unit 411, thus improving signal transmission accuracy. In other embodiments, the shaft housing 32 may not have a boss 34.

[0045] In one embodiment, the boss 34 and the magnetic component 42 are integrally formed. Specifically, during the production of the shaft core 300, the boss 34 and the magnetic component 42 are integrally formed. This eliminates the need for subsequent steps of installing the magnetic component 42 onto the boss 34, simplifying the production process, reducing the time and labor costs associated with assembly, and thus improving overall production efficiency. Since the boss 34 and the magnetic component 42 are integrally formed, there are no issues such as poor contact, loosening, or detachment that may occur with bonding, welding, or other connection methods. This reduces the risk of malfunctions at the connection point and improves the stability and reliability of the button during long-term use. During the production process, through precise mold positioning and insert forming technology, the position of the magnetic component 42 on the boss 34 can be precisely controlled, ensuring a more accurate relative positional relationship between the magnetic component 42 and the magnetic sensing unit 411. This, in turn, improves the accuracy of the magnetic sensing unit 411 in detecting changes in the magnetic field, resulting in more precise button operation feedback. In other embodiments, the boss 34 may be provided with an insertion port and a vent hole that communicate with the first cavity 341. The insertion port and the vent hole are arranged opposite to each other. The insertion port is located on the lower side of the boss 34, and the vent hole is located on the upper side of the boss 34, so that the magnetic component 42 can be directly inserted into the first cavity 341 through the insertion port. The vent hole is provided to avoid air residue after the magnetic component 42 is assembled with the first cavity 341, so as to avoid affecting the stability of the assembly.

[0046] In one embodiment, the magnetic sensing module 400 includes wiring pins 412 extending towards the bottom of the base 100, and a circuit board 41 with the wiring pins 412. A magnetic sensing unit 411 is disposed between the circuit board 41 and the base 100 and connected to the circuit board 41. The magnetic sensing unit 411 is enclosed by the circuit board 41 and the base 100, providing a certain degree of protection and making it less susceptible to damage from external impacts, wear, etc., during use, thus improving the structural strength and durability of the product. In other embodiments, the magnetic sensing unit 411 may be located on the upper side of the circuit board 41.

[0047] In one embodiment, the wiring pin 412 includes a first pin 413 and a second pin 414. Two first pins 413 are provided; one first pin 413 and the second pin 414 are electrically connected to the positive and negative terminals of the circuit board 41, respectively, and the other first pin 413 is electrically connected to the magnetic induction unit 411. The wiring pin 412 electrically connected to the positive and negative terminals of the circuit board 41 is responsible for supplying power to the components on the circuit board 41 and the magnetic induction module 400. The wiring pin 412 electrically connected to the magnetic induction unit 411 is used to transmit the induction signal from the magnetic induction unit 411. In other embodiments, there may be only one first pin 413 and one second pin 414, one for electrically connecting to the magnetic induction unit 411 and the other for transmitting the induction signal.

[0048] In one embodiment, the wiring pin 412 is formed by repeated bending to create a pressure-resistant structure. When the button structure is impacted, the pressure-resistant structure formed by the bending of the wiring pin 412 undergoes a certain degree of elastic deformation to elastically resist the pressure transmitted to the wiring pin 412, preventing the wiring pin 412 from twisting and deforming under the impact force, and extending the service life and durability of the button structure. In other embodiments, the pressure-resistant structure may not be provided.

[0049] In one embodiment, the button structure further includes a pin socket 500, which is disposed on the base 100 and connected to the circuit board 41. Wiring pins 412 are embedded in the pin socket 500. The pin socket 500 encloses the wiring pins 412 to enhance their resistance to pressure and deformation, thereby extending the service life and durability of the button structure. In other embodiments, the pin socket 500 may not be provided.

[0050] In one embodiment, the pin holder 500 has a clearance opening 51 corresponding to the magnetic sensing unit 411, and the magnetic sensing unit 411 is disposed within the clearance opening 51. That is, when the magnetic sensing unit 411 is installed on the base 100, the magnetic sensing unit 411 is protected by the pin holder 500 along its axial direction. Simultaneously, the pin holder 500 can be designed more compactly on the base 100 without affecting the installation position of the magnetic sensing unit 411, making the overall button structure layout more reasonable and compact, saving space, and helping to reduce the size of the button. In other embodiments, the pin holder 500 may not have a clearance opening 51.

[0051] In one embodiment, the button structure further includes a housing 200, which is fastened above the base 100 and connected to the base 100 to form a receiving cavity 21. A shaft core 300 passes through the housing 200 and is disposed within the receiving cavity 21. An elastic reset member 22 is disposed within the receiving cavity 21, abutting against the shaft core 300. The shaft core 300 has a first position and a second position in the height direction. In the first position, the shaft core 300 is away from the bottom of the base 100; in the second position, the shaft core 300 is close to the bottom of the base 100. The elastic reset member 22 has a tendency to reset the shaft core 300 to the first position. The elastic reset member 22 includes a spring, which is sleeved on the shaft post 31, with one end abutting against the bottom of the base 100 and the other end abutting against the shaft housing 32. Furthermore, the base 100 is provided with a mounting hole 11, the shaft core 300 is slidably disposed in the mounting hole 11, and the spring is sleeved on the outside of the mounting hole 11 so as to uniformly apply an upward elastic force to the shaft core 300, so that the shaft core 300 can be smoothly reset to the first position.

[0052] This utility model also proposes a keyboard, which includes a main circuit board 600 and a key structure. The specific structure of the key structure is as described in the above embodiments. Since this keyboard adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here. The main circuit board 600 is electrically connected to the key structure, and the main circuit board 600 is provided with at least three terminals to adapt to key structures with three or two terminal pins 412.

[0053] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A button structure, characterized in that, include: Base; The shaft core moves axially within the base; A magnetic sensing module includes a magnetic component and a magnetic sensing unit. The magnetic sensing unit is disposed on the base, the magnetic component is disposed on the shaft core, and the magnetic pole distribution direction of the magnetic component is parallel to the axial direction of the shaft core. The magnetic sensing unit is located below the magnetic component. The magnetic sensing module includes wiring pins extending to the bottom of the base, and a circuit board with the wiring pins. The magnetic sensing unit is located between the circuit board and the base and is connected to the circuit board.

2. The button structure as described in claim 1, characterized in that, The magnetic component is located on the side of the shaft core and is positioned opposite to the magnetic sensing unit.

3. The button structure as described in claim 2, characterized in that, The outer surface of the shaft core has a protrusion facing the magnetic sensing unit, and a first cavity is provided inside the protrusion, with the magnetic component disposed in the first cavity.

4. The button structure as described in claim 3, characterized in that, The boss is integrally formed with the magnetic component.

5. The button structure as described in claim 1, characterized in that, The wiring pins include a first pin and a second pin. The first pin has two parts. One of the first pins and the second pin are electrically connected to the positive and negative terminals of the circuit board, respectively. The other first pin is electrically connected to the magnetic induction unit.

6. The button structure as described in claim 1, characterized in that, The wiring pins are formed by repeated bending to create a pressure-resistant structure.

7. The button structure as described in claim 1, characterized in that, The button structure also includes a pin socket, which is disposed on the base and connected to the circuit board, and the wiring pins are embedded in the pin socket.

8. The button structure as described in claim 7, characterized in that, The pin socket has a clearance opening corresponding to the magnetic induction unit.

9. A keyboard, characterized in that, include: The button structure as described in any one of claims 1 to 8; The main circuit board is electrically connected to the button structure, and the main circuit board is provided with at least three terminals.

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