Floating type mechanical key device

Abstract

The utility model discloses a floating type mechanical key device, which enables a key to be self-adaptive to installation tolerance so as to ensure the attractiveness and subsequent convenient use of the key. The device comprises a box body; the PCB comprises a substrate, a plurality of components and mechanical keys, at least one mechanical key is fixedly arranged on the first surface of the substrate, and the plurality of components are arranged on the first surface of the substrate; the panel is provided with a positioning hole corresponding to the convex end of the mechanical key; the connecting assemblies are used for connecting the box body and the PCB, and each connecting assembly comprises a fastening nut, a connecting stud, a linear spring and an adjusting nut; at least three sets of fastening nuts which are not located on the same straight line are fixedly arranged on the surface area, used for installing the PCB, of the box body, penetrating guide holes are formed in the positions, corresponding to the fastening nuts, of the base plate, the inner ends of the corresponding connecting studs are fixedly connected with the fastening nuts in a threaded mode, the connecting studs are sleeved with linear springs, and the inner ends of the linear springs are tightly attached to the exposed surfaces of the fastening nuts.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical key structures, in particular to a floating mechanical key device. Background Art

[0002] In the prior art, buttons are generally divided into touch buttons and mechanical buttons. Mechanical buttons have physical feedback, and users can feel the input feedback through key pressure, sound, etc.

[0003] In the prior art, mechanical keys are assembled in positioning holes on a panel and are welded to a PCB. This structure requires the PCB to be directly fixed to the panel. However, during actual assembly, since the panel is detachable, if the PCB is fixed to the panel for assembly, it is very easy to break or damage the circuits connecting the PCB and the internal connection of the device when the panel is disassembled. Therefore, the PCB is generally connected to the box, so that after the PCB and the box are installed in place, the panel cover is installed on the upper surface of the PCB. During the assembly process, the height of the key protrusion is very likely to be recessed in the panel hole or to be too high due to height tolerance, thereby affecting the key operation or the aesthetics of the device.

[0004] To this end, it is urgent to develop a mechanical button device that can match the processing tolerance and installation error, so as to ensure that the protrusion height required by the design is achieved after the button is installed in place. Summary of the Invention

[0005] In view of the above problems, the present invention provides a floating mechanical key device, which enables the key to adapt to the installation tolerance, thereby ensuring the beauty of the key and the subsequent convenient use.

[0006] A floating mechanical key device, characterized in that it comprises:

[0007] Box;

[0008] A PCB board comprising a substrate, a plurality of components, and a mechanical key, wherein at least one mechanical key is fixedly provided on a first surface of the substrate, and a plurality of components are arranged on the first surface of the substrate;

[0009] A panel, wherein a positioning hole is provided at an outer convex end of the panel corresponding to the mechanical button;

[0010] and several connecting assemblies, each of which is used to connect the box and the PCB board, and each of which includes a fastening nut, a connecting stud, a linear spring, and an adjusting nut;

[0011] The surface area of ​​the box for mounting the PCB board is fixed with at least three groups of fastening nuts that are not in the same straight line. The base plate is provided with a through guide hole at the position corresponding to the fastening nut. The inner end of the corresponding connecting stud is threadedly fixed to the fastening nut. The connecting stud is sleeved with a linear spring. The inner end of the linear spring is tightly attached to the exposed surface of the fastening nut. The outer end of the connecting stud passes through the through guide hole and then convexes upward, and is threadedly sleeved with an adjusting nut. The outer end of the linear spring is top-mounted on the second surface of the base plate. The adjusting nut is used to adjust the spacing distance between the base plate of the PCB board and the box under the elastic force of the linear spring. The outer protruding end of the mechanical button is arranged corresponding to the position of the positioning hole.

[0012] It is further characterized by:

[0013] The base plate is a rectangular structure, and at least three corner positions of the base plate are respectively provided with through guide holes. The diameters of the through guide holes are arranged with clearance matching the diameters of the connecting studs. The through guide holes facilitate the passage of the connecting studs without causing radial shaking, thereby ensuring that the position of the PCB board is stable and reliable after assembly.

[0014] The equivalent diameter of the linear spring is larger than the diameter of the through guide hole, thereby ensuring a stable arrangement of the linear spring;

[0015] The base plate is provided with a linear spring positioning ring groove at the bottom position corresponding to the through guide hole, and the linear spring positioning ring groove is used to fix the outer end position of the linear spring, so that the linear spring will not cause wear to the bottom of the base plate during the expansion and contraction process;

[0016] The components include a lamp group, and the panel is provided with a light-transmitting hole corresponding to the position of each lamp in the lamp group, and the light-transmitting hole ensures that the light is reliably exposed.

[0017] With the structure of the present invention, due to the presence of the linear spring, the height tolerance of the assembly between the key and the panel can be eliminated by the extension and compression of the linear spring. The height installation position of the PCB board is limited by the height position of the adjusting nut, and the PCB board is mounted at the height position set by the adjusting nut via the linear spring, so that the key can be accurately assembled into the positioning hole on the panel. After being pressed, the elastic modulus of the linear spring is greater than the elastic modulus of the deformation of the mechanical structure in the mechanical key, and the user can receive timely feedback. The utility model solves the assembly problem of the mechanical key by connecting the PCB board and the box without changing the mechanical key structure. In actual use, linear springs with different elastic moduli can be selected according to different models of mechanical keys, thereby making adjustment flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the side view structure of the utility model;

[0019] Figure 2 This is a partial schematic diagram of the three-dimensional assembly of the present invention after removing the panel;

[0020] Figure 3 This is an assembly cross-sectional view of the fastening nut, connecting stud, linear spring, adjusting nut and base plate of the utility model;

[0021] The names corresponding to the serial numbers in the figure are as follows:

[0022] Box body 10, PCB board 20, base plate 21, through guide hole 211, linear spring positioning ring groove 212, lamp group 22, mechanical button 23, protruding end 231, combined component 24, panel 30, connecting assembly 40, fastening nut 41, connecting stud 42, linear spring 43, adjusting nut 44. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0024] In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0025] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal communication between two components. A person skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0027] A floating mechanical key device, see Figure 1-Figure 2 , which includes a box body 10, a PCB board 20, a panel 30, and a plurality of connection components 40;

[0028] The PCB board 20 includes a substrate 21, several components, and a mechanical button 23. A mechanical button 23 is fixed on the upper surface of the substrate 21. Several components are arranged on the upper surface of the substrate 21, including a light group 22 and a combination component 24.

[0029] The panel 30 is provided with a positioning hole (not shown in the figure, belonging to the existing mature technology) at the protruding end corresponding to the mechanical button 23, and a light-transmitting hole (not shown in the figure, belonging to the existing mature technology) is provided at the position of each lamp of the lamp group 22. The light-transmitting hole ensures that the light is reliably exposed;

[0030] The connecting assembly 40 is used to connect the box 10 and the PCB board 20. Each connecting assembly 40 includes a fastening nut 41, a connecting stud 42, a linear spring 43, and an adjusting nut 44. The fastening nut 41 is a hexagonal nut.

[0031] The surface area of ​​the box body 10 for mounting the PCB board 20 is fixed with at least three groups of fastening nuts 41 that are not in the same straight line. A through guide hole 211 is provided at the position of the base plate 21 corresponding to the fastening nut 41. The lower end of the corresponding connecting stud 42 is threadedly fixed to the fastening nut 41. The connecting stud 42 is sleeved with a linear spring 43. The lower end of the linear spring 43 is tightly attached to the upper surface of the fastening nut 41. The upper end of the connecting stud 42 passes through the through guide hole 211 and then convexly extends upward and is threadedly sleeved with an adjusting nut 44. The outer end of the linear spring 43 is top-mounted on the lower surface of the base plate 21. The adjusting nut 44 is used to adjust the spacing distance between the base plate 21 of the PCB board 20 and the box body 10 under the elastic force of the linear spring 43. The outer protruding end 231 of the mechanical button 23 is arranged corresponding to the position of the positioning hole.

[0032] In a specific implementation, the base plate 21 has a rectangular structure, and three corner positions of the base plate 21 are respectively provided with through guide holes 211. The diameter of the through guide holes 211 is arranged with a clearance fit with the diameter of the connecting studs 42. The through guide holes 211 facilitate the passage of the connecting studs 42 without causing radial shaking, thereby ensuring that the position of the PCB board 20 is stable and reliable after assembly.

[0033] The equivalent diameter of the linear spring 43 is larger than the diameter of the through-guide hole 211 , ensuring a stable arrangement of the linear spring 43 ;

[0034] The base plate 21 is provided with a linear spring positioning ring groove 212 at the bottom position corresponding to the through guide hole 211. The linear spring positioning ring groove 212 is used to fix the upper end position of the linear spring 43, so that the linear spring 43 will not cause wear to the bottom of the base plate during the expansion and contraction process.

[0035] Its working principle is as follows: Due to the presence of the linear spring, the assembly height tolerance between the key and the panel can be eliminated by the extension and compression of the linear spring. The height of the nut is adjusted to limit the height of the PCB board. The linear spring is used to install the PCB board at the height set by the adjustment nut, so that the key can be accurately assembled into the positioning hole on the panel. After being pressed, the elastic modulus of the linear spring is greater than the elastic modulus of the mechanical structure in the mechanical key that causes deformation, and the user can receive timely feedback. It solves the assembly problem of the mechanical key by connecting the PCB board and the box without changing the mechanical key structure. In actual use, linear springs with different elastic moduli can be selected according to different models of mechanical keys, making adjustment flexible.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0037] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A floating mechanical key device, characterized in that: It includes: Box; A PCB board comprising a substrate, a plurality of components, and a mechanical key, wherein at least one mechanical key is fixedly provided on a first surface of the substrate, and a plurality of components are arranged on the first surface of the substrate; A panel, wherein a positioning hole is provided at an outer convex end of the panel corresponding to the mechanical button; and several connecting assemblies, each of which is used to connect the box and the PCB board, and each of which includes a fastening nut, a connecting stud, a linear spring, and an adjusting nut; The surface area of ​​the box for mounting the PCB board is fixed with at least three groups of fastening nuts that are not in the same straight line. The base plate is provided with a through guide hole at the position corresponding to the fastening nut. The inner end of the corresponding connecting stud is threadedly fixed to the fastening nut. The connecting stud is sleeved with a linear spring. The inner end of the linear spring is tightly attached to the exposed surface of the fastening nut. The outer end of the connecting stud passes through the through guide hole and then convexes upward, and is threadedly sleeved with an adjusting nut. The outer end of the linear spring is top-mounted on the second surface of the base plate. The adjusting nut is used to adjust the spacing distance between the base plate of the PCB board and the box under the elastic force of the linear spring. The outer protruding end of the mechanical button is arranged corresponding to the position of the positioning hole.

2. The floating mechanical key device according to claim 1, characterized in that: The base plate is a rectangular structure, and at least three corner positions of the base plate are respectively provided with through guide holes, and the diameters of the through guide holes and the diameters of the connecting studs are arranged with clearance fit.

3. The floating mechanical key device according to claim 2, characterized in that: The equivalent diameter of the linear spring is larger than the diameter of the through guide hole.

4. The floating mechanical key device according to claim 3, characterized in that: The base plate is provided with a linear spring positioning ring groove at a bottom position corresponding to the through guide hole, and the linear spring positioning ring groove is used to fix the outer end position of the linear spring.

5. The floating mechanical key device according to claim 1, characterized in that: The components include a lamp group, and the panel is provided with a light-transmitting hole corresponding to the position of each lamp in the lamp group.

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