Hall element magnetic axis keyboard key switch

Abstract

The utility model discloses a Hall element magnetic shaft keyboard key switch, which comprises a base, an upper cover, a pressing device, an electronic assembly with a Hall element and a magnet, the base is provided with an accommodating cavity, the electronic assembly with the Hall element is fixedly arranged in the accommodating cavity, the magnet is arranged on one side of the pressing device, and the pressing device is arranged on the upper cover. The pressing device is buckled on the base from top to bottom and extends into the containing cavity, the Hall element in the containing cavity is located below the magnet, the pressing device drives the magnet to move up and down in the containing cavity, and the upper cover is buckled on the base and presses and fixes the pressing device. According to the utility model, the opening and closing of the key switch are realized through a non-contact conduction mode of the magnet arranged in the pressing device and the Hall element in the base, and the magnet and the Hall element are arranged in the key switch, so that the closer-distance induction of the magnet and the Hall element can be ensured, the induction is more accurate, and the induction failure caused by an overlarge distance is prevented; meanwhile, the service life of the mechanical switch is prolonged.

Description

Technical Field:

[0001] The utility model relates to the technical field of keyboard keys, and particularly relates to a magnetic axis keyboard key switch with a Hall element built in the keyboard key switch. Background Art:

[0002] Regarding the keyboard, it is an important input device connected to a computer or other electronic devices to facilitate the control of the computer or electronic devices.

[0003] In existing keyboards, such as mechanical keyboards, mechanical keyboards often control the closing through an internal Switch (set switch shaft), and realize the on and off functions through the conduction or disconnection of contacts. Due to the relatively frequent keyboard strikes and sometimes excessive human force, this type of mechanical keyboard is prone to key fatigue damage, and the service life is generally relatively low.

[0004] In order to extend the service life of mechanical keyboards, in the prior art, the opening and closing of the keyboard switch are realized through the interaction between a magnet and Hall induction. In this technology, the magnet is installed in the product, while the Hall element is installed on an external circuit board. The magnet and the Hall element realize the opening and closing of the keyboard switch through the magnetic field induction effect. However, since the Hall element is installed on the external circuit board of the keyboard switch, the two are not in close proximity induction, and the induction contact effect is poor, affecting its use effect.

[0005] In view of this, the inventor of the present invention aims at the deficiencies of the prior art and proposes a Hall magnetic axis keyboard key switch with more accurate induction to overcome the above-mentioned technical problems. Content of the Utility Model:

[0006] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a Hall element magnetic axis keyboard key switch with more accurate induction and an extended service life.

[0007] To solve the above technical problems, the utility model adopts the following technical solution: A Hall element magnetic axis keyboard key switch, which includes a base, the base is provided with a receiving cavity; an electronic assembly with a Hall element, the electronic assembly with the Hall element is installed and fixed in the receiving cavity; a magnet; a pressing device, the magnet is installed on one side of the pressing device, the pressing device is snap-fitted onto the base from top to bottom and extends into the receiving cavity, the Hall element in the receiving cavity is located below the magnet, and the pressing device can drive the magnet to move up and down in the receiving cavity; an upper cover, the upper cover is snapped onto the base and presses and fixes the pressing device.

[0008] Furthermore, in the above technical solution, on the inner side wall of one of the walls of the receiving cavity, an intermediate protrusion, a left protrusion and a right protrusion located on both sides of the intermediate protrusion are sequentially provided, and the electronic assembly with the Hall element is installed and fixed on the protrusions.

[0009] Furthermore, in the above technical solution, one through hole, two through holes for positioning and fixing the electronic assembly are respectively provided on the left convex block and the right convex block, or at least one through hole for positioning and fixing the electronic assembly is provided on each convex block.

[0010] Furthermore, in the above technical solution, upright holding walls for fixing the pressing device are respectively provided upwardly adjacent to two opposite walls of the accommodating cavity having convex block walls. The upright holding walls are provided with a plurality of sliding rib strips facilitating the assembly of the pressing device, and the plurality of sliding rib strips are respectively located at the middle position and the two side edges of the upright holding walls.

[0011] Furthermore, in the above technical solution, the pressing device includes a button and an elastic spring. The button is provided with a pressing portion, a fitting portion, and a middle shaft. The pressing portion is located above the fitting portion, the middle shaft is located below the fitting portion, the pressing portion passes through the upper cover and is exposed outside, the fitting portion is engaged in the upper cover, and the elastic spring is sleeved on the middle shaft and extends into the accommodating cavity.

[0012] Furthermore, in the above technical solution, upright holding wall engaging portions are respectively protruded downwardly from both sides of the fitting portion and are engaged with the left guiding portion and the right guiding portion. A sliding open guiding groove facilitating convenient installation is provided outside each guiding portion. The sliding rib strips at the two side edges are clamped outside the guiding portions. The magnet is assembled in the left guiding portion, and a receiving chamber for accommodating the magnet is provided on the bottom surface of the left guiding portion.

[0013] Furthermore, in the above technical solution, in addition to the Hall element, the electronic assembly further includes a built-in circuit board and at least three connection terminals connecting the built-in circuit board and an external circuit board. The built-in circuit board has jacks connected by at least three connection terminals, and the position of each jack corresponds to the convex block through hole provided in the accommodating cavity. The Hall element is located at one end of the built-in circuit board and is close to the magnet.

[0014] Furthermore, in the above technical solution, the base and the upper cover respectively have joint surfaces. The joint surface of the base is provided with at least one positioning post, and the corresponding joint surface of the upper cover is provided with a positioning hole for the positioning post, and the positioning post is inserted into the positioning hole.

[0015] Furthermore, in the above technical solution, insertion slots are provided side by side in the accommodating cavity. The periphery of the upper cover has four inclined surfaces, and a second opening is provided on one inclined surface opposite to the insertion slot. The insertion slot is located directly below the second opening.

[0016] Furthermore, in the above technical solution, a locking block is further included. The locking block includes a cap head inserted into the second opening and fastened, and a body vertically extending from the cap head and narrower than the cap head and extending into the insertion slot. Elastic arms are respectively folded and extended from the bottom ends of both side surfaces of the body toward the second opening, and an interference portion with the wall surface of the insertion slot is opened outwardly at the top end of each elastic arm.

[0017] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art: By arranging a magnet and an electronic assembly with a Hall element inside the product at the same time, and making the magnet located below the Hall element, it can ensure a closer induction between the magnet and the Hall element, the induction is more accurate, and the induction failure caused by too large a distance can be prevented; The opening and closing of the key switch are realized through the non-contact conduction method of the close induction between the magnet and the Hall element, which prolongs the service life of the mechanical switch. Description of the drawings:

[0018] Figure 1 is the three-dimensional exploded view of the utility model;

[0019] Figure 2 is the three-dimensional view of a single base of the utility model;

[0020] Figure 3 is Figure 2 top plan view;

[0021] Figure 4 is the three-dimensional view of a single upper cover of the utility model;

[0022] Figure 5 is the three-dimensional view of a key of the utility model;

[0023] Figure 6 is the three-dimensional view when the electronic assembly and the pressing device of the utility model are combined on the base;

[0024] Figure 7 is the three-dimensional exploded view of the electronic assembly of the utility model;

[0025] Figure 8 is Figure 6 three-dimensional view after assembling the upper cover;

[0026] Figure 9 is the three-dimensional view after the complete assembly of the utility model; and

[0027] Figure 10 is Figure 9 three-dimensional view from another angle.

[0028] Description of reference numerals:

[0029] 100 Hall element magnetic axis keyboard key switch 1 base

[0030] 11 receiving cavity 111 middle convex block

[0031] 112 left convex block 113 right convex block

[0032] 12 through hole 13 upright holding wall

[0033] 131 sliding rib 14 fastening groove

[0034] 15 Guide shaft hole, 16 and 23 Joint surfaces

[0035] 17 Positioning post, 18 Insertion slot

[0036] 2 Upper cover, 21 First opening

[0037] 22 Hook, 24 Positioning hole

[0038] 25 Second opening, 3 Pressing device

[0039] 31 Button, 32 Pressing part

[0040] 33 Fitting part, 331 Left guiding part

[0041] 332 Right guiding part, 333 Open guiding slot

[0042] 334 Receiving chamber, 34 Intermediate shaft

[0043] 35 Elastic spring, 4 Electronic assembly

[0044] 41 Built-in circuit board, 42 Hall element

[0045] 43 Connection terminal, 431 Clamping part

[0046] 432 Connection part, 433 Insertion part

[0047] 5 Magnet, 6 Lock block

[0048] 61 Cap head, 62 Body

[0049] 63 Elastic arm, 631 Interference part Specific implementation method:

[0050] The present utility model will be further described below in conjunction with specific embodiments and the attached drawings.

[0051] Please refer to the detailed attached drawings, as Figures 1 to 10 shown, a specific preferred embodiment of a Hall element magnetic shaft keyboard key switch 100 provided by the present utility model includes a base 1, an upper cover 2, a pressing device 3, an electronic assembly 4 having a Hall element 42, and a magnet 5. The electronic assembly 4 having the Hall element 42 is installed in the base 1, the magnet 5 is assembled on one side of the pressing device 3 and is clamped and fixed on the base 1, and the upper cover 2 is buckled on the base 1 and buckles the pressing device 3. The magnet 5 is close to the lower side of the Hall element 42.

[0052] The base 1 is provided with an electronic assembly 4 having a Hall element 42 and a receiving cavity 11 for mounting the pressing device 3. On the inner side wall of one of the walls of the receiving cavity 11, there are successively provided an intermediate bump 111, a left bump 112 and a right bump 113 on both sides of the intermediate bump 111. The electronic assembly 4 having the Hall element 42 is fixedly mounted on the bumps. According to the technical solution of the present invention, on the left bump 112 and the right bump 113, there are respectively provided one through hole 12 and two through holes 12 for positioning and fixing the electronic assembly 4. Another implementation manner is that on each bump, there is provided at least one through hole 12 for positioning and fixing the electronic assembly 4. On the two opposite walls of the receiving cavity adjacent to the wall surface provided with the bumps, there are respectively provided upright holding walls 13 for fixing the pressing device 3. The upright holding walls 13 are provided with a plurality of sliding rib strips 131 for facilitating the assembly of the pressing device 3. The plurality of sliding rib strips 131 are respectively located at the middle position and the two side edges of the upright holding wall 13. On both sides of each upright holding wall 13, there are respectively provided fastening grooves 14 for fixing the upper cover 2.

[0053] The magnet 5 is provided on one side of the pressing device 3. The pressing device 3 includes a key 31 and an elastic spring 35. The key 31 is provided with a pressing portion 32, a fitting portion 33 and an intermediate shaft 34. The pressing portion 32 is located above the fitting portion 33, and the intermediate shaft 34 is located below the fitting portion 33. The pressing portion 32 passes through the upper cover 2 and is exposed outside. The fitting portion 33 is engaged in the upper cover 2. The elastic spring 35 is sleeved on the intermediate shaft 34 and extends into the receiving cavity 11. The other end of the elastic spring 35 abuts against the guide shaft hole 15 in the receiving cavity 11. On both sides of the fitting portion 33, there are downwardly extending and protruding upright holding walls 13 engaged with a left guiding portion 331 and a right guiding portion 332. On the outer side of each guiding portion, there is provided a sliding open groove 333 for facilitating the installation with the intermediate sliding rib strip 131. The key 31 is smoothly installed and fixed on the upright holding wall 13 through the sliding open groove 333 by the intermediate sliding rib strip 131, and the sliding rib strips 131 at the two side edges of the upright holding wall 13 are clamped on the outer side of the guiding portion. The magnet 5 is assembled in the left guiding portion 331. The left guiding portion 331 is provided with a receiving chamber 334 for accommodating the magnet 5 from the bottom surface. The Hall element 42 is located below the magnet 5.

[0054] In addition to the Hall element 42, the electronic assembly 4 further includes a built-in circuit board 41 and at least three connection terminals 43 connecting the built-in circuit board 41 and an external circuit board (not shown). The built-in circuit board 41 has jacks 411 connected to at least three connection terminals 43. The position of each jack 411 corresponds to the bump through hole 12 provided in the receiving cavity 11. The Hall element 42 is located at one end of the built-in circuit board and is close to the magnet 5.

[0055] Each connection terminal 43 includes a clamping portion 431, a connection portion 432 having a fish-eye hole at one end of the clamping portion 431, and a plugging portion 433 at the other end. The connection portion 432 is connected in the jack 411, and the plugging portion 433 is connected and plugged on an external circuit board, and the connection terminal 43 realizes the current connection of the built-in circuit board 41.

[0056] The upper cover 2 is buckled on the base 1 and presses and fixes the pressing device 3. The upper cover 2 is provided with a first opening 21 through which the pressing portion 32 passes. A pair of hooks 22 are provided on the side surface of the upper cover 2 opposite to the upright holding wall 13, and the hooks 22 are hooked in the buckling groove 14. In order to facilitate the positioning when the base 1 and the upper cover 2 are buckled, the base 1 and the upper cover 2 respectively have joint surfaces 16, 23. The joint surface 16 of the base is provided with at least one positioning post 17, and the corresponding joint surface 23 of the upper cover is provided with a positioning hole 24 opposite to the positioning post 17, and the positioning post 17 is inserted into the positioning hole 24.

[0057] The accommodating cavity 11 is provided with insertion grooves 18 in parallel. The periphery of the upper cover 2 has four inclined surfaces, and a second opening 25 is provided on one inclined surface opposite to the insertion groove 18, and the insertion groove 18 is located directly below the second opening 25.

[0058] To further make the upper cover 2 and the base 1 tightly buckled and not loose, the present invention further includes a locking block 6. The locking block 6 is inserted into the insertion groove 18 through the second opening 25, and includes a cap head 61 that is tightly buckled in the second opening 25 and a body 62 that extends vertically from the cap head 61 and is narrower than the cap head 61 and extends into the insertion groove 18. Elastic arms 63 are respectively folded and extended from the bottom ends of the two side surfaces of the body 62 toward the second opening 25, and an interference portion 631 with the wall surface of the insertion groove 18 is opened outward at the top end of each elastic arm 63. In this way, after the base 1 and the upper cover 2 are buckled, under the action of the locking block 6, the base 1 and the upper cover 2 are buckled together more tightly and will not become disengaged.

[0059] In this embodiment, the push-button switch 100 is finally installed on an external circuit board (not shown) and is connected and powered through the connection terminal 43. When the operator clicks the pressing portion 32 of the push button 31 with a hand, the push button 31 drives the magnet 5 provided in the push button to move into the receiving cavity 11 in the base 1. The electronic assembly 4 having the Hall element 42 is fixedly installed on the bump of the receiving cavity 11 and the Hall element 42 is located below the magnet. In this way, the magnet 5 approaches the Hall element 42 below, and the Hall element 42 senses the magnet 5 to turn on and open the switch, thereby realizing the input function. When the operator presses the push button 31 again, the push button 31 drives the magnet 5 to move upward under the push of the elastic spring 35. At this time, the magnet 5 moves away from the Hall element 42 so that it cannot detect the closing and opening of the induction switch. The present invention realizes the opening and closing of the push-button switch through the non-contact conduction method between the magnet 5 provided in the push button 31 and the Hall element 42 in the base 1. Since both the magnet 5 and the Hall element 42 are provided in the push-button switch 100, it can ensure that the magnet 5 and the Hall element 42 are sensed at a closer distance, the sensing is more accurate, and the induction failure caused by too large a distance is prevented. At the same time, the service life of the mechanical switch is extended.

[0060] Certainly, the above are only specific embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made according to the structure, features, and principles described in the scope of the patent application of the present invention should be included within the scope of the patent application of the present invention.

Claims

1. A Hall element magnetic axis keyboard key switch, characterized in that: Comprising, a base provided with a receiving cavity; an electronic assembly having a Hall element, the electronic assembly having a Hall element being mounted and fixed in the receiving cavity; a magnet; a pressing device, the magnet being mounted on one side of the pressing device, the pressing device being snap-fitted onto the base from top to bottom and extending into the receiving cavity, the Hall element in the receiving cavity being located below the magnet, and the pressing device being capable of driving the magnet to move up and down in the receiving cavity; an upper cover, the upper cover being snap-fitted onto the base and pressing and fixing the pressing device.

2. The Hall element magnetic axis keyboard key switch according to claim 1, characterized in that: On the inner side wall of one of the walls of the receiving cavity, an intermediate bump, a left bump and a right bump located on both sides of the intermediate bump are successively provided, and the electronic assembly having a Hall element is mounted and fixed on the bump.

3. The Hall element magnetic axis keyboard key switch according to claim 2, characterized in that: One through hole, two through holes for positioning and fixing the electronic assembly are respectively provided on the left bump and the right bump, or at least one through hole for positioning and fixing the electronic assembly is provided on each bump.

4. The Hall element magnetic axis keyboard key switch according to claim 3, characterized in that: On two opposite walls of the receiving cavity adjacent to the wall surface having a bump, upright holding walls for fixing the pressing device are respectively provided upward, and the upright holding walls are provided with a plurality of sliding rib strips for facilitating the assembly of the pressing device, and the plurality of sliding rib strips are respectively located at the middle position and the two side edges of the upright holding walls.

5. The Hall element magnetic axis keyboard key switch according to claim 4, wherein: The pressing device includes a button and an elastic spring. The button is provided with a pressing portion, a mating portion and an intermediate shaft. The pressing portion is located above the mating portion, and the intermediate shaft is located below the mating portion. The pressing portion passes through the upper cover and is exposed outside, the mating portion is snap-fitted in the upper cover, and the elastic spring is sleeved on the intermediate shaft and extends into the receiving cavity.

6. The Hall element magnetic axis keyboard key switch according to claim 5, wherein: On both sides of the mating portion, upright holding wall mating joints extending downward are provided on the left guiding portion and the right guiding portion. On the outer side of each guiding portion, a sliding open slot for facilitating installation is provided with an intermediate sliding rib strip. The sliding rib strips at both side edges are clamped on the outer side of the guiding portion. The magnet is assembled in the left guiding portion, and the left guiding portion is provided with a receiving chamber for accommodating the magnet from the bottom surface.

7. The Hall element magnetic axis keyboard key switch according to claim 3, characterized in that: In addition to the Hall element, the electronic assembly further includes a built-in circuit board and at least three connection terminals connecting the built-in circuit board and an external circuit board. The built-in circuit board has jacks connected to at least three connection terminals, and the position of each jack corresponds to the through hole of the bump of the receiving cavity. The Hall element is located at one end of the built-in circuit board and is close to the magnet.

8. The Hall element magnetic axis keyboard key switch according to claim 1, wherein: The base and the upper cover respectively have joint surfaces. The joint surface of the base is provided with at least one positioning post, and the corresponding joint surface of the upper cover is provided with a positioning hole for the positioning post, and the positioning post is inserted into the positioning hole.

9. The Hall element magnetic axis keyboard key switch according to claim 1, wherein: The receiving cavity is provided with insertion slots in parallel. The periphery of the upper cover has four inclined surfaces, and a second opening is provided on one inclined surface opposite to the insertion slot, and the insertion slot is located directly below the second opening.

10. The Hall element magnetic axis keyboard key switch according to claim 9, characterized in that: Further included is a locking block, which includes a cap head inserted into the second opening and fastened, and a body vertically extending from the cap head and narrower than the cap head and extending into the insertion slot. Elastic arms are respectively folded and extended from the bottom ends to the second opening on both side surfaces of the body, and an interference portion with the wall surface of the insertion slot is outwardly opened at the top end of each elastic arm.

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