Optical keyboard switch

Abstract

An optical keyboard switch disclosed by the present application comprises a key body, a guide rod, an emitter and a receiver, the key body comprises a top and a bottom, a through hole is formed in the connecting line direction of the top and the bottom in a penetrating manner, the guide rod is movably arranged in the through hole in a penetrating manner along the direction of the through hole, and the guide rod comprises more than two penetrating parts, the axial direction of the penetrating portions is perpendicular to the axial direction of the through hole, the emitter is arranged on the bottom and located on one side of the through hole, the receiver and the emitter are correspondingly arranged on the other side of the through hole, and the receiver is connected with the receiver through the penetrating portions. Therefore, the same optical keyboard switch can correspondingly form different electric signals on different key travels, so that the purpose that the same optical keyboard switch executes various types of control can be achieved according to the force applied to the guide rod by a user.

Description

Technical Field

[0001] The present application relates to the technical field of switches, and in particular to an optical keyboard switch. Background Art

[0002] Optical keyboard switches mainly receive light beams to generate corresponding electrical signals.

[0003] The existing structure of a single optical keyboard switch receiving a light beam includes a transmitter, a guide rod and a receiver. The transmitter and the receiver are arranged on both sides of the guide rod opposite to each other. The guide rod is penetrated to form a through hole. The transmitter emits a light beam. When the user presses the optical keyboard switch, the guide rod will move from a preset position toward the bottom. At this time, an elastic element connected to the guide rod accumulates a rebound force due to compression, and the light beam will pass through the through hole until it reaches the receiver. When the receiver receives the light beam, it forms an electrical signal and transmits the electrical signal to a processor; and when the user releases the optical keyboard switch, the guide rod will rebound to the preset position due to the spring force. At this time, the receiver stops forming the electrical signal because the light beam is shielded by the guide rod.

[0004] However, the existing single optical keyboard switch can only form a single electrical signal when the receiver receives the light beam. Thus, only a single control can be provided in the single optical keyboard switch.

[0005] Therefore, the prior art is indeed in need of further providing more improved solutions. Utility Model Content

[0006] In view of the above-mentioned deficiencies in the prior art, the main purpose of the present application is to provide an optical keyboard switch. Through the design of the guide rod, the optical keyboard switch can generate different electrical signals corresponding to different key strokes, thereby achieving the purpose of using the same optical keyboard switch to perform multiple controls.

[0007] In order to achieve the above-mentioned purpose, the main technical means adopted by the present application is to make the optical keyboard switch include:

[0008] A key body, comprising a top and a bottom, wherein a through hole is formed through the connection direction of the top and the bottom;

[0009] A guide rod, which is movably arranged in the through hole along the direction of the through hole, and the guide rod includes more than two through parts, and the axial directions of the two or more through parts are perpendicular to the axial direction of the through hole;

[0010] a transmitter, which is disposed at the bottom of the key body and located at one side of the through hole; and

[0011] A receiver is arranged at the bottom of the key body and is arranged at the other side of the through hole corresponding to the transmitter.

[0012] Preferably, the two or more through-holes include a first through-hole and a second through-hole, wherein the first through-hole is disposed at an end of the guide rod away from the top, and the second through-hole is disposed between the first through-hole and the top.

[0013] Preferably, the diameter of the first through hole is smaller than or larger than the diameter of the second through hole.

[0014] Preferably, the shape of the first through hole is different from the shape of the second through hole.

[0015] Preferably, the guide rod further comprises:

[0016] A first side wall, which is arranged parallel to the axial direction of the through hole; and

[0017] a second side wall, disposed opposite to the first side wall;

[0018] Wherein, the two or more penetration portions penetrate the first side wall and the second side wall.

[0019] Preferably, the transmitter is spaced apart from the first side wall by a spacing distance and is disposed at the bottom away from the second side wall, and the receiver is spaced apart from the second side wall by the spacing distance and is disposed at the bottom away from the first side wall.

[0020] Preferably, the emitter is a visible light emitter or an invisible light emitter.

[0021] Preferably, the receiver is a visible light receiver or an invisible light receiver.

[0022] Through the above structure, when the guide rod is in the first key stroke, the transmitter emits a light beam through the first penetration portion to the receiver, and the receiver forms a first electrical signal corresponding to the light beam; and when the guide rod is in the second key stroke, the transmitter emits the light beam through the second penetration portion to the receiver, and the receiver forms a second electrical signal corresponding to the light beam; wherein the luminous flux of the light beam is greater than or less than the luminous flux of the light beam. In this way, on a single optical keyboard switch, different key strokes can be generated according to the length of pressure applied to the guide rod by the user, thereby achieving multiple controls on the same optical keyboard switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0024] Figure 1 It is an exploded view of the optical keyboard switch of the present application.

[0025] Figure 2 It is a three-dimensional diagram of the optical keyboard switch of the present application.

[0026] Figure 3 It is a three-dimensional diagram of the key body of the present application.

[0027] Figure 4 It is a stereoscopic diagram of the optical keyboard switch of the present application from another perspective.

[0028] Figure 5 It is a top view of the optical keyboard switch of the present application. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] For the sake of clarity, the position where the user presses the optical keyboard switch 10 of the present application is defined as the top of the optical keyboard switch 10 , and the position where the guide rod is exposed from the key body is defined as the bottom of the optical keyboard switch 10 .

[0031] A preferred embodiment of the optical keyboard switch 10 of the present application is as follows: Figure 1 As shown, the optical keyboard switch 10 comprises a key body 11, a guide rod 12, a transmitter 13 and a receiver 14. Specifically, the transmitter 13 and the receiver 14 can be interchangeably arranged. The key body 11 comprises a top T and a bottom B. A through hole 110 is formed through the center of the top T of the key body 11 in the direction of the line connecting the bottom B of the key body 11. The guide rod 12 is movably arranged in the through hole 110 along the direction of the through hole 110. Moreover, the guide rod 12 comprises more than two through portions 120. The axial directions of the more than two through portions 120 are perpendicular to the axial direction of the through hole 110. The transmitter 13 is arranged at the bottom B of the key body 11 and is located at one side of the through hole 110. The receiver 14 is arranged at the bottom B of the key body 11 and is arranged at the other side of the through hole 110 corresponding to the transmitter 13.

[0032] For details, please refer to Figure 2 , Figure 3 , Figure 4and Figure 5 The guide rod 12 also includes a first side wall 121 and a second side wall 122. The first side wall 121 and the second side wall 122 are arranged opposite to each other and the first side wall 121 and the second side wall 122 are respectively arranged parallel to the axial direction of the through hole 110. The more than two through portions 120 penetrate the first side wall 121 and the second side wall 122.

[0033] In this embodiment, please refer to Figure 4 The more than two through-holes 120 include a first through-hole 1201 and a second through-hole 1202 . The first through-hole 1201 is disposed at the end of the guide rod 12 and away from the top T, and the second through-hole 1202 is disposed between the first through-hole 1201 and the top T.

[0034] When the guide rod 12 has not yet moved toward the bottom B, the edge of the first through hole 1201 maintains a distance from the line connecting the transmitter 13 and the receiver 14, thereby preventing the light beam (not shown) emitted by the transmitter 13 from being transmitted to the receiver 14 through the first through hole 1201 or the second through hole 1202.

[0035] In this embodiment, the aperture of the first through hole 1201 is smaller than or larger than the aperture of the second through hole 1202. The aperture of the first through hole 1201 is different from the aperture of the second through hole 1202, so that the luminous flux of the light beam passing through the first through hole 1201 is different from the luminous flux of the light beam passing through the second through hole 1202. In detail, when the transmitter 13 emits a first light beam, the first light beam passes through the first through hole 1201 to the receiver 14, and the receiver 14 forms a first electrical signal corresponding to the luminous flux of the first light beam received by the first through hole 1201, and when the transmitter 13 forms a second electrical signal corresponding to the luminous flux received by the second through hole 1202, the first electrical signal is greater than or less than the second electrical signal.

[0036] For example, the aperture of the first through hole 1201 is smaller than the aperture of the second through hole 1202 when the radius of the aperture of the first through hole 1201 is 0.1 mm and the radius of the aperture of the second through hole 1202 is 0.2 mm, and vice versa.

[0037] In this embodiment, the shape of the first through hole 1201 is the same as the shape of the second through hole 1202. For example, the shape of the first through hole 1201 is circular, and the shape of the second through hole 1202 is circular.

[0038] In this embodiment, the shape of the first through hole 1201 is different from the shape of the second through hole 1202. For example, the shape of the first through hole 1201 is triangular, and the shape of the second through hole 1202 is circular.

[0039] In this embodiment, the transmitter 13 is disposed at the bottom B of the key body 11 at a distance from the first side wall 121 and away from the second side wall 122 , while the receiver 14 is disposed at the bottom B of the key body 11 at a distance from the second side wall 122 and away from the first side wall 121 .

[0040] In this embodiment, the transmitter 13 is a visible light transmitter or an invisible light transmitter. Specifically, the visible light transmitter is an LED transmitter or a laser transmitter. The invisible light transmitter is an infrared transmitter, a radar transmitter, a microwave transmitter, an ultraviolet transmitter or an X-ray transmitter, etc. The receiver 14 is a visible light receiver or an invisible light receiver. The receiver 14 is configured to receive the light beam emitted by the transmitter 13, that is, when the transmitter 13 is the visible light transmitter, the receiver 14 is the visible light receiver, and when the transmitter 13 is the invisible light transmitter, the receiver 14 is the invisible light receiver.

[0041] In the above embodiment, the emitter 13 emits light beams with the same power during the movement of the guide rod.

[0042] To summarize, by the user pressing the guide rod 12 with different forces, when the guide rod 12 is in the first key stroke, the transmitter 13 transmits a light beam to the receiver 14 through one of the two or more through parts, and forms a corresponding first electrical signal. When the guide rod 12 is in the second key stroke, the transmitter 13 transmits a light beam to the receiver 14 through another through part of the two or more through parts, and forms a corresponding second electrical signal. In this way, on a single optical keyboard switch, different key strokes can be generated according to the length of pressure applied to the guide rod 12 by the user, thereby achieving multiple controls using the same optical keyboard switch.

[0043] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0044] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present application and the claims, all of which belong to the scope of protection of the present application.

Claims

1. An optical keyboard switch, characterized in that: Include: A key body, comprising a top and a bottom, wherein a line connecting the top and the bottom penetrates to form a through hole; A guide rod, which is movably arranged in the through hole along the direction of the through hole, and the guide rod includes more than two through parts, and the axial directions of the two or more through parts are perpendicular to the axial direction of the through hole; a transmitter, which is disposed at the bottom of the key body and located at one side of the through hole; and A receiver is arranged at the bottom of the key body and is arranged at the other side of the through hole corresponding to the transmitter.

2. The optical keyboard switch according to claim 1, wherein: The two or more through-holes include a first through-hole and a second through-hole. The first through-hole is disposed at the end of the guide rod away from the top, and the second through-hole is disposed between the first through-hole and the top.

3. The optical keyboard switch according to claim 2, wherein: The diameter of the first through hole is smaller than or larger than the diameter of the second through hole.

4. The optical keyboard switch according to claim 2, wherein: The shape of the first through hole is different from the shape of the second through hole.

5. The optical keyboard switch according to claim 1, wherein: The guide rod also includes: A first side wall, which is arranged parallel to the axial direction of the through hole; and a second side wall, disposed opposite to the first side wall; Wherein, the two or more penetration portions penetrate the first side wall and the second side wall.

6. The optical keyboard switch according to claim 5, wherein: The transmitter is spaced apart from the first side wall by a spacing distance and is disposed at the bottom away from the second side wall, while the receiver is spaced apart from the second side wall by the spacing distance and is disposed at the bottom away from the first side wall.

7. The optical keyboard switch according to any one of claims 1 to 6, characterized in that: The emitter is a visible light emitter or an invisible light emitter.

8. The optical keyboard switch according to claim 7, wherein: The receiver is a visible light receiver or an invisible light receiver.

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