Magnetic shaft key switch with annular light guide

Abstract

The utility model relates to the keyboard key switch structure field, especially in a kind of magnetic shaft key switch with annular light guide, including shell, is formed with axial passage;Key, along the axial passage of shell sliding arrangement, and the end of the key protrudes the shell setting;Connecting block, with the linkage setting of another end of the key, and the connecting block is provided with magnetic component in;Annular light guide piece, insert in the shell, and the both ends of the annular light guide piece are respectively set on the surface of the shell;The key is driven to the connecting block and magnetic component and approaches towards external inductor, and the inductor generates induction signal and exports.The utility model solves the problem that the existing magnetic shaft key switch can only realize unilateral light guide, and light guide performance is weak.

Description

Technical Field

[0001] This utility model relates to the field of keyboard key switch structures, and in particular to a magnetic shaft key switch with an annular light guide. Background Technology

[0002] A magnetic switch is a keyboard switch based on the Hall effect principle. In recent years, it has emerged as an innovative switch technology in the mechanical keyboard field, particularly in high-end custom and e-sports applications. Its working principle involves the keycap moving downwards, causing the switch core and its underlying magnet to approach a Hall effect sensor on the PCB board. Changes in the distance between the magnet and the sensor cause changes in the magnetic field strength around the sensor. The Hall effect sensor accurately detects this magnetic field change and converts it into a continuous, analog electrical signal. The keyboard's main control chip reads this signal and can accurately calculate the real-time pressure distance of the key.

[0003] Existing magnetic axis push-button switches are usually equipped with a single-sided light guide post, which concentrates the light on one side of the push-button switch, resulting in poor light guiding effect.

[0004] Therefore, this utility model patent proposes a magnetic shaft push button switch with a ring-shaped light guide.

[0005] Utility Model Patent Content The utility model patent provides a magnetic shaft push button switch with a ring-shaped light guide, which mainly solves the problem that existing magnetic shaft push button switches can only achieve single-sided light guidance and have weak light guiding performance.

[0006] This utility model patent proposes a magnetic shaft push-button switch with a ring-shaped light guide, comprising: The shell has an axial channel. The button is slidably disposed along the axial channel of the housing, and the end of the button protrudes from the housing; A connecting block is configured in conjunction with the other end of the button, and a magnetic component is provided inside the connecting block; A ring-shaped light guide is inserted into the housing, and both ends of the ring-shaped light guide are respectively disposed on the surface of the housing; Pressing down the button causes the connecting block and magnetic component to move closer to the external sensor, which then generates and outputs a sensing signal.

[0007] Preferably, the housing has the following features: A slot is provided through the housing and is located on the outer edge of the axial channel; the annular light guide is inserted into the slot along the length of the axial channel; one end of the annular light guide receives light from an external light source and forms an annular light at the other end, which is located on the outer edge of the button.

[0008] Preferably, a limiting member is formed on the outer side wall of the other end of the annular light guide, and the limiting member is in a contracted posture along the engagement direction between the annular light guide and the slot; when the limiting member abuts against the lower bottom surface of the outer edge of the slot, the annular light guide and the slot are engaged and fixed.

[0009] Preferably, the annular light guide is made of a light-transmitting material.

[0010] Preferably, the housing comprises: The cap includes a first cover surface and a first limiting tube disposed perpendicular to the first cover surface; both ends of the first limiting tube protrude from the first cover surface, and the first limiting tube constitutes part of the axial channel. The base includes a second cover that is detachably connected to the bottom surface of the first cover, and a second limiting tube that protrudes from the other end of the second cover; the first limiting tube is sleeved on the outer edge of the second limiting tube, and the second limiting tube constitutes the remaining axial channel.

[0011] Preferably, the lower end of the first cover protrudes to form a limiting post, and the upper end of the second cover is recessed to form a limiting groove that is mutually circumvented by the limiting post. The outer wall of the second limiting tube has a protruding positioning rib, and the outer side of the first limiting tube has a positioning hole that is mutually ventilated with the positioning rib.

[0012] Preferably, a third limiting tube is protruding from the center of the second limiting tube, and the third limiting tube is located on the moving path of the connecting block; It also includes an elastic element sleeved outside the connecting block and the third limiting tube, and the elastic element is tightly disposed between the end of the connecting block that abuts the button and the bottom surface of the second limiting tube.

[0013] Preferably, the end of the button facing the connecting block is hollow and is sleeved on the outside of the connecting block; The inner bottom surface of the hollow structure has a protrusion that is inserted into the connecting block, and the protrusion abuts against the magnetic component.

[0014] Preferably, the outer edge of the hollow structure is formed with a limiting rib; The end of the axial channel for the button to protrude has a folded edge, and the outer edge of the limiting rib is larger than the inner diameter of the folded edge.

[0015] Preferably, a fixing member is formed on the end face of the base away from the rubber cover.

[0016] As can be seen from the above, the following beneficial effects can be obtained by applying the technical solution provided by this utility model patent: First, the magnetic axis key switch proposed in this utility model achieves a ring-shaped light guide effect that surrounds the key by setting a ring light guide component, thereby enhancing the visual experience and ensuring uniform light effect of a single control key when assembling it into a keyboard. Secondly, the magnetic shaft push button switch proposed in this utility model is assembled in two ways: upper and lower assembly. After the housing is assembled, it is fixed by inserting a ring light guide, which eliminates the need for fasteners, greatly reducing the assembly difficulty and time, while also reducing the cost of the magnetic shaft push button switch and ensuring its lightweight design. Third, the magnetic shaft push button switch proposed in this utility model uses an elastic element design to allow the button to self-reset when the external force is removed after it moves downward under external force, and also drives the connecting block and magnetic components to self-reset, thus ensuring the accuracy of the magnetic shaft push button switch. Fourth, the magnetic shaft push button switch proposed in this utility model has an insertion structure between the button and the connecting block, which further improves the tightness of the connection between the button and the connecting block, ensuring that the downward pressing of the button drives the connecting block and magnetic components downward, and that the reset of the elastic component drives the reset of the connecting block, magnetic components and button. Attached Figure Description

[0017] 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 these drawings without creative effort.

[0018] Figure 1 This is an exploded view of the magnetic shaft push-button switch in an embodiment of this utility model; Figure 2 This is an assembly diagram of the magnetic shaft push button switch in an embodiment of this utility model; Figure 3 This is a structural diagram of the rubber cap of the shell in an embodiment of this utility model; Figure 4 This is a schematic diagram of the base structure in an embodiment of the present utility model; Figure 5 This is a cross-sectional view of the magnetic shaft push-button switch in an embodiment of this utility model. Detailed Implementation

[0019] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] Existing magnetic axis push-button switches can only guide light on one side, resulting in weak light guiding performance.

[0021] like Figures 1-5 As shown, in order to solve the above problems, this embodiment proposes a magnetic shaft push button switch with annular light guide, including a housing 10, a button 20, a connecting block 30, and an annular light guide 40; an axial channel is formed on the housing 10 for the button 20 to slide, and the end of the button 20 protrudes from the housing 10; the other end of the button 20 is linked with the connecting block 30, and a magnetic element 50 is provided in the connecting block 30; the annular light guide 40 is inserted into the housing 10, and the two ends of the annular light guide 40 are respectively provided on the surface of the housing 10; when the button 20 is pressed down, it causes the connecting block 30 and the magnetic element 50 to move closer to an external sensor, and the sensor generates a sensing signal and outputs it.

[0022] Preferably, in this embodiment, the axial channel is a channel that is in the same height direction as the housing 10 and located at the center of the housing 10. It is not limited to this embodiment; both the axial channel and the button 20 adopt a cylindrical structure to facilitate the sliding of the button 20 along the axial channel.

[0023] Preferably, in this embodiment, the external sensor is disposed on the PCB board, which also forms a light source. The annular light guide 40 diffuses the light generated by the light source on the PCB board along its own direction and finally forms an annular light outside the button 20.

[0024] In this embodiment, the assembly process of the magnetic shaft push button switch is as follows: the magnetic component 50 is installed into the connecting block 30, the connecting block 30 is installed into the button 20 and built into the housing 10, and finally the annular light guide 40 is inserted and fixed. Therefore, the annular light guide 40 can receive light from an external light source and form an annular light on the end face of the button 20.

[0025] More specifically, a slot 11 is formed through the housing 10, and the slot 11 is located at the outer edge of the axial channel; the annular light guide 40 is inserted into the slot 11 along the length of the axial channel.

[0026] Preferably, in this embodiment, the annular light guide 40 is inserted into the housing 10, and a stepped shrinking ring is formed on the end face of the button 20 protruding from the housing 10, which ensures the overall airtightness of the annular light guide 40.

[0027] Preferably, in this embodiment, the annular light guide 40 is integrally formed from a light-transmitting material.

[0028] In this embodiment, the assembly difficulty of the annular light guide 40 can be further reduced by the slot 11 on the housing 10, while the light receiving direction and light emission direction and range of the annular light guide 40 are defined to ensure the illumination performance of the magnetic shaft button switch.

[0029] More specifically, a limiting member 41 is formed on the outer side wall of the other end of the annular light guide 40, and the limiting member 41 is in a contracted posture along the engagement direction of the annular light guide 40 and the slot 11; when the limiting member 41 abuts against the lower end face of the outer edge of the slot 11, the annular light guide 40 and the slot 11 are engaged and fixed.

[0030] Preferably, in this embodiment, the limiting member 41 is specifically a right-angled rectangle, and the right-angled end is disposed facing the light-emitting surface of the annular light guide 40. In this embodiment, during the engagement of the annular light guide 40 with the slot 11, it enters the plane of the limiting member 41 along the inclined surface of the limiting member 41 and engages with the vertical surface of the limiting member 41, fixing the setting height of the annular light guide 40 in the slot 11.

[0031] Preferably, in this embodiment, the other end of the annular light guide 40 has two arc-shaped parts, and the limiting part 41 is symmetrically arranged on the outer wall of the two arc-shaped parts.

[0032] In this embodiment, the annular light guide 40 is fixed to the slot 11 by the setting of the limiting member 41, avoiding the use of fasteners, which simplifies the assembly steps of the annular light guide 40 and reduces the assembly time, while avoiding too many parts affecting the overall weight of the magnetic shaft button switch.

[0033] More specifically, the housing 10 includes a detachably connected rubber cap 12 and a base 13; a first cover surface 121 is formed on the rubber cap 12, and a second cover surface 131 is formed on the base 13 and is detachably connected to the lower end surface of the first cover surface 121; the rubber cap 12 also includes a first limiting tube 122 disposed perpendicular to the first cover surface 121, and both ends of the first limiting tube 122 protrude from the first cover surface 121 and form a partial axial channel; the base 13 includes a second limiting tube 132 disposed through the second cover surface 131 and protruding from the other end surface of the second cover surface 131; the first limiting tube 122 is sleeved on the outer edge of the second limiting tube 132, and the second limiting tube 132 forms the remaining axial channel.

[0034] Preferably, in this embodiment, the base 13 further includes a bottom surface that is parallel to the second cover surface 131, and the second limiting tube 132 is disposed between the second cover surface 131 and the bottom surface. In the assembled relationship, the bottom end of the first limiting tube 122 abuts against the bottom surface.

[0035] Preferably, in this embodiment, the first limiting tube 122 is located at the outer edge of the slot 11.

[0036] Preferably, in this embodiment, the lower end face of the first cover 121 protrudes to form a limiting post 123, and the upper end face of the second cover 131 is recessed to form a limiting groove 133 that is mutually circumvented by the limiting post 123; the outer protrusion of the second limiting tube 132 forms a positioning rib 134, and the side wall of the first limiting tube 122 forms a positioning hole 124 that is mutually circumvented by the positioning rib 134. Not limited to this, there are four limiting posts 123 and four limiting grooves 133, respectively located at the inner corners of the square first cover 121 and second cover 131; there are two positioning ribs 134 and two positioning holes 124, respectively symmetrically arranged on the second limiting tube 132 and the first limiting tube 122.

[0037] In this embodiment, the housing 10 is assembled by setting the limiting post 123 and the limiting groove 133, as well as the positioning rib 134 and the positioning hole 124, which makes the assembly convenient and firm and ensures the structural integrity of the magnetic shaft push button switch.

[0038] More specifically, the bottom of the second limiting tube 132 also protrudes to form a third limiting tube 135, and the third limiting tube 135 is located on the moving path of the connecting block 30; it also includes an elastic member 60 sleeved on the connecting block 30 and the third limiting tube 135, and the elastic member 60 is tightly disposed between the end of the connecting block 30 that abuts against the button 20 and the bottom surface of the second limiting tube 132.

[0039] Preferably, in this embodiment, the open ends of the third limiting tube 135 and the second limiting tube 132 are both located on the plane of the second cover surface 131, and the third limiting tube 135 is disposed at the center of the second limiting tube 132.

[0040] Preferably, in this embodiment, the connecting block 30 is arranged in an inverted cap shape, the magnetic element 50 is built into the connecting block 30, and the button 20 is fixed to the connecting block 30 by being inserted into the channel of the connecting block 30 through the protrusion 21 at the bottom center of the button 20; the corresponding elastic element 60 is a spring, the outer contour of which is smaller than the edge of the connecting block 30, but larger than the other outer diameter of the connecting block 30 and the outer diameter of the third limiting tube 135.

[0041] In this embodiment, when button 20 is pressed down, it causes connecting block 30 to move toward the bottom surface of base 13, that is, to compress elastic element 60. At this time, elastic element 60 will generate a spring force that pushes connecting block 30 in the opposite direction. When the external force is removed, the spring force pushes connecting block 30, its internal magnetic element 50, and connected button 20 to reset.

[0042] More specifically, the end of the button 20 facing the connecting block 30 is a hollow structure, which is sleeved on the outside of the connecting block 30; a limiting rib 22 is also formed on the outer wall of the hollow structure; the end of the button 20 that protrudes on the axial channel is formed with a folded edge, and the outer edge of the limiting rib 22 is larger than the inner diameter of the folded edge.

[0043] Preferably, in this embodiment, the limiting rib 22 is provided to limit the height of the button 20 rebounding under the action of the elastic force of the elastic member 60, so as to ensure that the button 20 and the connecting block 30 remain in contact.

[0044] Preferably, in this embodiment, the limiting ribs 22 are symmetrically arranged on the outer walls of both sides of the hollow structure of the button 20.

[0045] In this embodiment, the specific structure of the button 20 ensures that it remains in contact with the connecting block 30, thereby ensuring the sensitivity of the magnetic shaft button switch and its normal operation.

[0046] More specifically, a fixing member is formed on the bottom surface of the base 13 away from the end face of the rubber cover 12.

[0047] Preferably, there are two fasteners 136, which are spaced apart along the central axis of the base 13.

[0048] In this embodiment, the fixing member 136 is provided to ensure the installation and fixation of the magnetic shaft button switch on the button 20 mold.

[0049] In summary, this embodiment proposes a magnetic axis push button switch with annular light guide. By setting an annular light guide, the outer edge of the magnetic axis push button switch can form an annular light ring through the setting of the light source, which further improves the light guiding performance of the magnetic axis push button switch.

[0050] The embodiments described above do not constitute a limitation on the scope of protection of this technical solution. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the above embodiments should be included within the scope of protection of this technical solution.

Claims

1. A magnetic shaft push-button switch with an annular light guide, characterized in that, include: The shell has an axial channel. The button is slidably disposed along the axial channel of the housing, and the end of the button protrudes from the housing; A connecting block is configured in conjunction with the other end of the button, and a magnetic component is provided inside the connecting block; A ring-shaped light guide is inserted into the housing, and both ends of the ring-shaped light guide are respectively disposed on the surface of the housing; Pressing down the button causes the connecting block and magnetic component to move closer to the external sensor, which then generates and outputs a sensing signal.

2. A magnetic shaft push-button switch with an annular light guide according to claim 1, characterized in that, The shell has the following formed on it: A slot is provided through the housing and is located at the outer edge of the axial channel; the annular light guide is inserted into the slot along the length of the axial channel; One end of the annular light guide receives light from an external light source, and the other end forms an annular light ring positioned on the outer edge of the button.

3. A magnetic shaft push-button switch with an annular light guide according to claim 2, characterized in that: A limiting member is formed on the outer side wall of the other end of the annular light guide, and the limiting member is in a contracted posture along the engagement direction between the annular light guide and the slot; when the limiting member abuts against the lower end face of the outer edge of the slot, the annular light guide and the slot are engaged and fixed.

4. A magnetic shaft push-button switch with an annular light guide according to claim 3, characterized in that: The annular light guide is made of a light-transmitting material.

5. A magnetic shaft push-button switch with an annular light guide according to any one of claims 1 to 4, characterized in that, The housing includes: The cap includes a first cover surface and a first limiting tube disposed perpendicular to the first cover surface; both ends of the first limiting tube protrude from the first cover surface, and the first limiting tube constitutes part of the axial channel. The base includes a second cover that is detachably connected to the bottom surface of the first cover, and a second limiting tube that extends through the second cover and protrudes from the other end of the second cover; the first limiting tube is sleeved on the outer edge of the second limiting tube, and the second limiting tube constitutes the remainder of the axial channel.

6. A magnetic shaft push-button switch with an annular light guide according to claim 5, characterized in that: The lower end of the first cover protrudes to form a limiting post, and the upper end of the second cover is recessed to form a limiting groove that is mutually circumvented by the limiting post. The outer wall of the second limiting tube has a protruding positioning rib, and the side wall of the first limiting tube has a positioning hole that is mutually ventilated with the positioning rib.

7. A magnetic shaft push-button switch with an annular light guide according to claim 6, characterized in that: The bottom of the second limiting tube also protrudes to form a third limiting tube, and the third limiting tube is located on the moving path of the connecting block; It also includes an elastic element sleeved outside the connecting block and the third limiting tube, and the elastic element is tightly disposed between the end of the connecting block that abuts the button and the bottom surface of the second limiting tube.

8. A magnetic shaft push-button switch with an annular light guide according to claim 7, characterized in that: The end of the button facing the connecting block is hollow and is sleeved on the outside of the connecting block; The inner bottom surface of the hollow structure has a protrusion that is inserted into the connecting block, and the protrusion abuts against the magnetic component.

9. A magnetic shaft push-button switch with an annular light guide according to claim 8, characterized in that: The outer wall of the hollow structure is formed with limiting ribs; The end of the axial channel for the button to protrude is formed with a folded edge, and the outer edge of the limiting rib is larger than the inner diameter of the folded edge.

10. A magnetic shaft push-button switch with an annular light guide according to claim 9, characterized in that: A fixing element is formed on the end face of the base away from the rubber cover.

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