Button switch with adjustable elastic force

Abstract

The utility model discloses a key switch with adjustable elastic force, which comprises a button, an upper shell, a bottom shell, a first magnetic piece, a push rod and a second magnetic piece, and is characterized in that the first magnetic piece is connected with the button and drives the button to rebound and reset through a spring; the push rod is movably installed in the upper shell to form a toggling structure, the second magnetic piece is assembled with the push rod and is separated from the first magnetic piece by a certain distance, and a rebounding structure for the button is formed by superposing magnetic force between the first magnetic piece and the second magnetic piece and elastic force of the spring. The distance between the second magnetic piece and the first magnetic piece is changed by shifting the push rod, so that the magnetic force between the first magnetic piece and the second magnetic piece is adjusted, and the magnetic force between the two magnetic pieces is adjustable. And the elastic force of the switch is formed by the elastic force of the spring and the magnetic force between the two magnetic pieces, so that the elastic force of the switch is adjustable, more diversity is achieved, the playability is higher, and the use requirements of more people can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to key switch product technical field, especially a kind of key switch of adjustable elasticity mainly applied to product such as keyboard. BACKGROUND

[0002] Key switch is a common switch form, such as keyboard magnetic shaft switch is one of them. The magnetic shaft switch on the market generally includes upper cover, bottom shell, button, spring, magnet, etc., press button, spring compression, trigger the Hall switch element on the circuit board through magnet, to realize the trigger operation of key;Release button, spring rebound, make key reset rebound, and provide the feeling of hand when pressing key, the elasticity of the whole switch is determined by spring. The problem of this structure form is that, since the spring force is certain, the rebound force of key is also fixed, so as to not facilitate to change the use feeling of key, it is difficult to meet the needs of different users. Although there are key switches that can change the feeling of key on the market, such as a magnetic force scissors holder key switch disclosed in Chinese utility model patent CN214099459U, which forms a pressing force shear magnetic force mode by setting the installation of two magnetic blocks as the magnetic pole center axis between the two magnetic blocks being perpendicular to the action direction of keyway, and the paragraph feeling of pressure force mutation can be fed back to the pressing finger. However, the scheme cannot realize adjustable magnetic force, so it cannot adapt to users with different feelings. At the same time, the magnetic force of the two magnetic blocks in the vertical direction is geometrically multiplied with the movement of the button, and the pressing feeling is uncomfortable. Moreover, the existing key switch structure is complex, involves many parts, and has high cost. SUMMARY

[0003] The utility model provides a kind of key switch of adjustable elasticity with simpler structure, more reasonable design, fewer parts, lower cost and more changeable pressing feeling in view of the defects of prior art.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: a kind of key switch of adjustable elasticity, including button, upper shell and bottom shell, upper shell and bottom shell are assembled and fixed, button is installed in bottom shell and from upper shell part is stretched;Button is connected with a first magnetic member, and the first magnetic member is moved downward to realize switch trigger action by pressing button;Spring is arranged between button and bottom shell, and button is reset by spring driving;Further including push rod and second magnetic member, push rod is movably installed in upper shell to form a movable structure;Second magnetic member is assembled and fixed with push rod, first magnetic member and second magnetic member are spaced apart by a distance, and the rebound structure of button is formed by the magnetic force between first magnetic member and second magnetic member and the spring force of spring, the distance between second magnetic member and first magnetic member is changed by pulling push rod, to realize the magnetic force between first magnetic member and second magnetic member, so as to realize the elasticity adjustable of switch.

[0005] Further, the main body portion of the push rod is provided with a mounting hole, and the second magnetic member is mounted in the mounting hole.

[0006] Alternatively, the main body portion of the push rod is provided with a mounting post, and the second magnetic member is sleeved on the mounting post. The second magnetic member can also be formed integrally with the push rod through in-mold forming.

[0007] Further, a side table at the upper edge of the upper shell is provided with a push hole, and the head of the push rod extends out of the push hole to form a pushable structure, and the main body portion of the push rod and the second magnetic member extend into the space formed by the upper shell and the bottom shell to make the second magnetic member opposite to the first magnetic member.

[0008] Further, the bottom of the button is provided with a sleeve, the first magnetic member is mounted in the sleeve and extends downward by a certain length; the bottom shell is provided with a plug-in cylinder at a position opposite to the sleeve, and the plug-in cylinder protrudes upward from the bottom surface of the bottom shell, and when the button is pressed, the first magnetic member together with the sleeve is inserted into the plug-in cylinder to trigger the switching action.

[0009] As a preferred, a spring is sleeved outside the sleeve and the plug-in cylinder and abuts against the button and the bottom shell respectively.

[0010] Further, the push rod, the upper shell and the bottom shell are in a positionable elastic contact assembly structure through the cooperation of the elastic boss and the positioning bead with the positioning groove, for example, the top end of the main body portion of the push rod and the bottom surface of the elastic boss are respectively provided with an upper positioning bead and a lower positioning bead, and the upper shell and the bottom shell are respectively provided with a positioning groove at positions corresponding to the upper positioning bead and the lower positioning bead to realize the positioning after the push rod is pushed.

[0011] As a preferred, the side of the second magnetic member opposite to the first magnetic member has different polarities to form an attractive structure, and when the push rod is pushed, the second magnetic member moves relative to the first magnetic member to change the distance between them to realize the adjustment of the attractive force between the first magnetic member and the second magnetic member.

[0012] Alternatively, the side of the second magnetic member opposite to the first magnetic member has the same polarity to form a repulsive structure, and when the push rod is pushed, the second magnetic member moves relative to the first magnetic member to change the distance between them to realize the adjustment of the repulsive force between the first magnetic member and the second magnetic member.

[0013] Further, the upper shell is provided with a guide groove at a position aligned with the push hole inside the upper shell, and the main body portion of the push rod is embedded in the guide groove to form a slidable structure.

[0014] The utility model discloses a push rod is set up in the upper shell, and the second magnetic piece is assembled and fixed with the push rod, so that the push rod can be pushed, and the distance between the second magnetic piece and the first magnetic piece can be changed when the push rod is pushed, thereby adjusting the magnetic force between the two magnetic pieces. The elastic force of the switch is formed by the elastic force of the spring and the magnetic force between the two magnetic pieces, and the elastic force of the switch is more diverse through the way of resultant force, has higher playability and can satisfy the use demand of more people. Meanwhile, the structure of the whole product is simpler, the parts are fewer and the cost is lower. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the three-dimensional appearance drawing of the utility model;

[0016] Figure 2 It is the cross section structure schematic drawing of the first kind of implementation of the utility model;

[0017] Figure 3 It is the exploded structure schematic drawing of the first kind of implementation of the utility model;

[0018] Figure 4 It is the cooperation schematic drawing of the push rod and the second magnet of the first kind of implementation of the utility model;

[0019] Figure 5 It is the push rod schematic drawing of the first kind of implementation;

[0020] Figure 6 It is the structure schematic drawing of the upper shell of the utility model;

[0021] Figure 7 It is the structure schematic drawing of the bottom shell of the utility model;

[0022] Figure 8 It is the whole structure schematic drawing of the second kind of implementation of the utility model;

[0023] Figure 9 It is the whole structure schematic drawing of the third kind of implementation of the utility model;

[0024] Figure 10 It is the push rod schematic drawing of the fourth kind of implementation of the utility model.

[0025] In the drawing, 1 is button, 11 is sleeve, 2 is upper shell, 21 is side platform, 22 is dial hole, 23 is guide slot, 24 is positioning recess, 3 is bottom shell, 31 is plug-in barrel, 32 is positioning recess, 4 is spring, 5 is first magnetic piece, 6 is push rod, 61 is rod head, 62 is mounting hole, 63 is baffle, 64 is baffle arm, 65 is positioning rib, 66 is elastic boss, 67 is lower positioning bead, 68 is upper positioning bead, 7 is second magnetic piece. PREFERRED EMBODIMENT

[0026] Embodiment 1, refer toFigures 1-7 The adjustable elastic button switch comprises a button 1, an upper shell 2 and a bottom shell 3, the upper shell 2 and the bottom shell 3 are fixedly assembled, the button 1 is arranged in the bottom shell 3 and protrudes from the upper shell 2 for pressing; the button 1 is connected with a first magnetic part 5, the first magnetic part 5 is moved downward by pressing the button 1 to cooperate with a Hall element on a circuit board to realize switch triggering action; a spring is arranged between the button 1 and the bottom shell 3, the first elastic force provided by the spring drives the button 1 to rebound and reset; the adjustable elastic button switch further comprises a push rod 6 and a second magnetic part 7, the push rod 6 is movably arranged in the upper shell 2 to form a movable structure, the movable structure can be set to 2-4 gears, for example, 3 gears; the second magnetic part 7 is fixedly assembled with the push rod 6, the first magnetic part 5 and the second magnetic part 7 are spaced apart at a distance and at a certain angle, and are not on the same vertical line, the magnetic force (attractive force or repulsive force) between the first magnetic part 5 and the second magnetic part 7 and the elastic force of the spring are superimposed to form a rebound structure for the button 1, the distance between the first magnetic part 5 and the second magnetic part 7 is changed by moving the push rod 6, and the magnetic force between the first magnetic part 5 and the second magnetic part 7 can be changed, the farther the distance, the smaller the magnetic force; the closer the distance, the greater the magnetic force. The button 1 is driven by the magnetic force between the first magnetic part 5 and the second magnetic part 7 to provide a second elastic force, and the elastic force of the switch is combined by the first elastic force and the second elastic force.

[0027] An installation hole 62 is arranged in the main body part of the push rod 6, and the second magnetic part 7 is arranged in the installation hole 62. When the rod head 61 is moved, the second magnetic part 7 moves together with the push rod 6 to move away from or close to the first magnetic part 5, for example, the first gear is closest to the first magnetic part 5, the second gear is next, and the third gear is farthest.

[0028] In addition, an installation column can be arranged in the main body part of the push rod 6, and the second magnetic part 7 is sleeved on the installation column. The second magnetic part 7 and the push rod 6 can also be formed as a whole assembly by in-mold forming.

[0029] A dial hole 22 is arranged on the side table 21 at the upper edge position of the upper shell 2, the rod head 61 of the push rod 6 protrudes from the dial hole 22 so as to be able to be moved by hand, and the main body part of the push rod 6 and the second magnetic part 7 protrude into the space formed by the upper shell 2 and the bottom shell 3 so that the second magnetic part 7 is opposite to the first magnetic part 5.

[0030] A guide groove 23 is arranged inside the upper shell 2 at a position aligned with the dial hole 22, the size (length or width) of the guide groove 23 is greater than the size of the main body part of the push rod 6, so that the main body part of the push rod 6 can slide left and right or forward and backward after being embedded in the guide groove 23. A positioning rib 65 (or a groove) can also be arranged in the guide groove 23 to cooperate with the push rod to realize limiting.

[0031] A sleeve 11 is provided at the bottom of the button 1, and the first magnetic member 5 is installed in the sleeve 11 and extends downward; a plug-in sleeve 31 is provided in the bottom shell 3 opposite the sleeve 11, and the plug-in sleeve 31 protrudes upward from the bottom surface of the bottom shell 3. When the button 1 is pressed, the first magnetic member 5 together with the sleeve 11 is inserted into the plug-in sleeve 31 to trigger the switching action.

[0032] The spring 4 is sleeved outside the sleeve 11 and the plug-in sleeve 31 and abuts against the button 1 and the bottom shell 3, respectively.

[0033] The lower part of the push rod 6 is provided with an elastic boss 66 in elastic contact with the bottom shell 3, and an upper positioning bead 68 and a lower positioning bead 67 are respectively arranged at the top end of the main body part of the push rod 6 and the bottom surface of the elastic boss 66. The upper shell 2 and the bottom shell 3 are respectively provided with positioning grooves 24 and 32 at positions corresponding to the upper positioning bead 68 and the lower positioning bead 67, so as to realize positioning after the push rod 6 is actuated (the positioning groove 24 in the upper shell 2 is arranged in the guide groove 23). Of course, the positions of the elastic boss 66, the positioning beads, and the positioning grooves can be flexibly arranged at different positions, such as the positioning beads being arranged in the upper shell 2 or the bottom shell 3 and the positioning grooves being arranged on the push rod 6, and the actual effect is the same.

[0034] The first magnetic member 5 and the second magnetic member 7 are both magnets, and the magnets can be in the shapes of cylinders, blocks, pies, or other shapes.

[0035] In addition, the second magnetic member 7 and the first magnetic member 5 can be arranged to have different polarities on opposite sides to form a structure of mutual attraction (opposite polarities attract each other), and when the push rod 6 is actuated, the second magnetic member 7 moves relative to the first magnetic member 5 to change the distance between them and adjust the attractive force between the first magnetic member 5 and the second magnetic member 7. In this way, a part of the elastic force of the spring 4 can be offset, thereby reducing the force required to press the switch. Such a switch is more suitable for use in the field of typing and other relatively gentle pressing actions, and is particularly suitable for users who want to press with less force, such as women.

[0036] Alternatively, the second magnetic member 7 and the first magnetic member 5 can be arranged to have the same polarity on opposite sides to form a structure of mutual repulsion (like poles repel each other), and when the push rod 6 is actuated, the second magnetic member 7 moves relative to the first magnetic member 5 to change the distance between them and adjust the repulsive force between the first magnetic member 5 and the second magnetic member 7. The repulsive force is superimposed with the elastic force of the spring 4, which can increase the force required to press the switch. Such a switch is more suitable for use in the field of e-sports and other relatively intense pressing actions.

[0037] As an embodiment 2, refer to Figure 8The front and rear sides of the rod head 61 are provided with positioning ribs 65, and the front and rear side walls of the poking hole 22 are provided with positioning grooves, so that the push rod 6 can be adjusted by being poked left and right. The positioning of the push rod 6 is realized by the positioning ribs 65 being clamped into the positioning grooves, so that the second magnetic member 7 will not change position due to the push rod 6 moving by itself, i.e. positioning is realized.

[0038] As an embodiment 3, refer to Figure 9 The positioning ribs 65 are arranged on the left and right sides of the rod head 61, and the left and right side walls of the poking hole 22 are provided with positioning grooves, so that the push rod 6 can be adjusted by being poked front and back.

[0039] As an embodiment 4, refer to Figure 10 The elastic boss 66 is arranged between the rod head 61 and the main body of the push rod 6, the two upper positioning beads 68 are arranged in a left-right structure on the top surface of the elastic boss 66 on the left and right sides of the rod head 61, and the two lower positioning beads 67 are arranged in a left-right structure on the bottom surface of the main body of the push rod 6.

[0040] Of course, the positions of the upper positioning beads 68, the lower positioning beads 67, the positioning grooves 23 and the positioning grooves 32 can also be arranged at other positions, as long as positioning can be realized.

[0041] The above has made a detailed description of the present application, the above description is only a preferred embodiment of the present application, and cannot limit the scope of the present application, i.e. any equivalent changes and modifications made within the scope of the present application shall still fall within the scope of the present application.

Claims

1. An adjustable spring-loaded push-button switch, comprising a button, an upper shell, and a lower shell, wherein the upper shell and the lower shell are assembled and fixed, the button is installed in the lower shell and extends partially from the upper shell; the button is connected to a first magnetic element, and pressing the button causes the first magnetic element to move downward to trigger the switch action; a spring is provided between the button and the lower shell, and the spring drives the button to rebound and reset, characterized in that: It also includes a push rod and a second magnetic component. The push rod is movably installed in the upper shell to form a toggleable structure. The second magnetic component is assembled and fixed with the push rod. The first magnetic component and the second magnetic component are spaced apart by a distance. The magnetic force between the first magnetic component and the second magnetic component, combined with the elastic force of the spring, forms a rebound structure for the button. By toggling the push rod, the distance between the second magnetic component and the first magnetic component is changed, thereby adjusting the magnetic force between the first magnetic component and the second magnetic component.

2. The adjustable spring force push button switch according to claim 1, characterized in that: A mounting hole is provided in the main body of the push rod, and the second magnetic component is installed in the mounting hole.

3. The adjustable spring force push button switch according to claim 1, characterized in that: The main body of the push rod is provided with a mounting post, and the second magnetic component is sleeved on the mounting post; or the second magnetic component and the push rod are formed into an integral component through in-mold molding.

4. The adjustable spring force push button switch according to claim 2, characterized in that: A dial hole is provided on the side platform at the upper edge of the upper shell. The rod head of the push rod extends out of the dial hole to form a dialable structure. The main body of the push rod and the second magnetic component extend into the space formed by the upper shell and the bottom shell so that the second magnetic component is opposite to the first magnetic component.

5. The adjustable spring force push button switch according to any one of claims 1-4, characterized in that: A sleeve is provided at the bottom of the button, and a first magnetic component is installed in the sleeve and extends downward. A plug-in tube is provided in the bottom shell at the position opposite to the sleeve. The plug-in tube protrudes upward from the bottom surface of the bottom shell. When the button is pressed, the first magnetic component and the sleeve are inserted into the plug-in tube to trigger the switch action.

6. The adjustable spring force push button switch according to claim 5, characterized in that: The spring is sleeved on the outside of the sleeve and the plug sleeve and abuts against the button and the bottom shell respectively.

7. The adjustable spring force push button switch according to claim 2, characterized in that: The push rod is connected to the upper and lower shells through a flexible boss and a positioning ball, forming a positioning groove to form a positionable elastic contact assembly structure.

8. The adjustable spring force push button switch according to claim 2, characterized in that: The second magnetic component has different polarities on the side opposite to the first magnetic component to form a structure that attracts each other. When the push rod is turned, the second magnetic component moves relative to the first magnetic component to change the distance between them, thereby adjusting the attraction between the first and second magnetic components.

9. The adjustable spring force push button switch according to claim 2, characterized in that: The second magnetic component has the same polarity on the side opposite to the first magnetic component to form a mutually repulsive structure. When the push rod is turned, the repulsive force between the first and second magnetic components is adjusted by changing the distance between them through the movement of the second magnetic component relative to the first magnetic component.

10. The adjustable spring force push button switch according to claim 4, characterized in that: A guide groove is provided inside the upper shell at the position aligned with the dial hole, and the main body of the push rod is embedded in the guide groove to form a sliding structure.

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