An ultrathin optical axis keyboard switch

Abstract

The utility model discloses a kind of ultrathin light axle keyboard switches, including circuit board, setting on the transmitting element of circuit board, setting on the receiving element of circuit board and with transmitting element matching, setting on the balance bracket assembly of circuit board, light shield piece formed on balance bracket assembly, balance bracket assembly includes first balance bracket rotatably set on circuit board, second balance bracket rotatably set on first balance bracket, and upper cover setting on first balance bracket and second balance bracket, light shield piece setting on any one component in first balance bracket, second balance bracket, upper cover.The utility model realizes the accurate transmission of signal, avoids the problem of wear and tear between moving and static film, guarantees the service life of keyboard switch, and transmitting element and receiving element can be assembled on circuit board first, light shield plate is integrally formed on balance bracket, to effectively improve production assembly speed, cooperate the structure of balance bracket to make keyboard switch light and thin, satisfy the use demand of different people.

Description

Technical Field

[0001] This utility model relates to the field of key switch technology, and in particular to an ultra-thin optical axis keyboard switch. Background Technology

[0002] A keyboard is a device used to input instructions and data to operate equipment. It also refers to a set of function keys arranged by a system to operate a machine or device. The keyboard is the most commonly used and primary input device, allowing users to input English letters, numbers, punctuation marks, etc., into a computer, thereby issuing commands and inputting data.

[0003] With the continuous advancement of technology, existing laptops are becoming increasingly thinner and lighter, and their keyboards are also becoming thinner and lighter. However, most ultra-thin keyboards on the market currently use a mechanical conduction mechanism. When pressed, the moving and stationary contacts make contact to achieve conduction. After prolonged use, this conduction method results in high wear on the moving and stationary contacts, which can easily lead to inaccurate conduction and cause the keyboard switches to malfunction. Utility Model Content

[0004] To address the aforementioned shortcomings, the purpose of this utility model is to provide an ultra-thin optical axis keyboard switch. This switch utilizes a light-shielding plate on a balance frame to block the light-conducting element's circuitry on the circuit board, thereby transmitting the pressed signal and achieving precise signal transmission. This avoids wear between the moving and stationary components, ensuring the keyboard switch's lifespan. Furthermore, the light-conducting element can be pre-assembled on the circuit board, with the light-shielding plate integrally formed on the balance frame, effectively improving production and assembly speed. The balance frame structure further contributes to the overall thinness and lightness of the keyboard switch, meeting the needs of different users.

[0005] The technical solution adopted by this utility model to achieve the above objectives is as follows:

[0006] An ultra-thin optical axis keyboard switch includes a circuit board, a transmitting element disposed on the circuit board, a receiving element disposed on the circuit board and matched with the transmitting element, a balance frame assembly disposed on the circuit board, and a light-shielding member formed on the balance frame assembly. The balance frame assembly includes a first balance frame rotatably disposed on the circuit board, a second balance frame rotatably disposed on the first balance frame, and a top cover disposed on the first balance frame and the second balance frame. The light-shielding member is disposed on any one of the first balance frame, the second balance frame, and the top cover.

[0007] As a further improvement of this utility model, the light-shielding member includes a connecting piece connected to the balance frame assembly, and a light-shielding sheet disposed on the side of the connecting piece and bent downward, the light-shielding sheet moving up and down between the transmitting element and the receiving element.

[0008] As a further improvement of this utility model, a hollow relief groove is formed in the middle of the upper cover, and the light-shielding member is disposed on the inner side wall of the relief groove.

[0009] As a further improvement of this utility model, the light-shielding plate is vertically movable between the transmitting element and the receiving element.

[0010] As a further improvement of this utility model, the light-shielding member is disposed on the inner side wall of the first balance frame, and the light-shielding plate moves up and down between the transmitting element and the receiving element.

[0011] As a further improvement of this utility model, the connecting piece extends obliquely towards the center along the tilting direction of the first balance frame, and the light-shielding piece is disposed on the outer side wall of the connecting piece.

[0012] As a further improvement of this utility model, the connecting piece extends obliquely towards the center along the tilting direction of the second balance frame, and the light-shielding piece is disposed on the outer side wall of the connecting piece.

[0013] As a further improvement of this utility model, it also includes a keycap disposed on the upper cover and a base for fixing the first balance frame and the second balance frame.

[0014] The beneficial effects of this utility model are as follows:

[0015] The keyboard switch is configured to include a circuit board, a transmitting element disposed on the circuit board, a receiving element disposed on the circuit board and matched with the transmitting element, a balance frame assembly disposed on the circuit board, and a light shield formed on the balance frame assembly. The balance frame assembly includes a first balance frame rotatably disposed on the circuit board, a second balance frame rotatably disposed on the first balance frame, and a top cover disposed on the first balance frame and the second balance frame. The light shield is disposed on any one of the first balance frame, the second balance frame, and the top cover.

[0016] By setting a light-shielding element on the balance frame assembly, and with the symmetrical arrangement of the emitting and receiving elements, the light emitted by the emitting element when the keyboard switch is not in use is received by the receiving element. When the keyboard switch is pressed externally, the upper cover is forced to move the light-shielding element downwards, thus blocking the light emitted from the emitting element. This light blocking triggers signal transmission, achieving accurate signal transmission and avoiding wear between the moving and stationary parts, ensuring the lifespan of the keyboard switch. The emitting and receiving elements can be pre-installed on the circuit board; during final assembly, simply attaching the balance frame assembly to the circuit board completes the assembly, effectively improving production speed and efficiency. By setting the light-shielding element on any one of the first balance frame, second balance frame, or upper cover, the position of the light-shielding element can be adjusted according to the internal structure of the keyboard switch, further saving space. The positions of the emitting and receiving elements on the circuit board can be adjusted accordingly, and the structure of the balance frame assembly makes the overall keyboard switch thinner and lighter, meeting the needs of different users.

[0017] The above is an overview of the utility model's technical solution. The following description, in conjunction with the accompanying drawings and specific embodiments, will further illustrate the utility model. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0019] Figure 2 This is a schematic diagram of the keycap removal structure in Example 1;

[0020] Figure 3 This is an exploded view of the keycaps removed in Example 1;

[0021] Figure 4 This is a schematic diagram of the upper cover structure in Embodiment 1;

[0022] Figure 5 This is a schematic diagram of the keycap removal structure in Example 2;

[0023] Figure 6 This is an exploded view of the keycap removal process in Example 2;

[0024] Figure 7 This is a schematic diagram of the structure of the first balancing frame in Embodiment 2;

[0025] Figure 8 This is a schematic diagram of the keycap removal structure in Example 3;

[0026] Figure 9 This is an exploded view of the keycap removal process in Example 3;

[0027] Figure 10This is a schematic diagram of the second balancing frame in Embodiment 3;

[0028] In the diagram: 1. Circuit board; 2. Transmitting element; 3. Receiving element; 4. Balance frame assembly; 41. First balance frame; 42. Second balance frame; 43. Top cover; 431. Relief groove; 5. Light shield; 51. Connecting piece; 52. Light shield; 6. Keycap; 7. Base; 8. Fixing plate. Detailed Implementation

[0029] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the specific implementation methods of this utility model will be described in detail below with reference to the accompanying drawings and preferred embodiments.

[0030] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Example 1

[0034] Please refer to Figures 1 to 4This utility model provides an ultra-thin optical axis keyboard switch, including a circuit board 1, a transmitting element 2 disposed on the circuit board 1, a receiving element 3 disposed on the circuit board 1 and matched with the transmitting element 2, a balance frame assembly 4 disposed on the circuit board 1, and a light-shielding member 5 formed on the balance frame assembly 4. The balance frame assembly 4 includes a first balance frame 41 rotatably disposed on the circuit board 1, a second balance frame 42 rotatably disposed on the first balance frame 41, and an upper cover 43 disposed on the first balance frame 41 and the second balance frame 42. The light-shielding member 5 is disposed on any one of the first balance frame 41, the second balance frame 42, and the upper cover 43.

[0035] By setting a light-shielding element 5 on the balance frame assembly 4, and symmetrically arranging the emitting element 2 and receiving element 3, the light emitted by the emitting element 2 when the keyboard switch is not in use is received by the receiving element 3. When the keyboard switch is pressed externally, the upper cover 43 is forced to move the light-shielding element 5 downward, thereby blocking the light emitted from the emitting element 2. The light is blocked, thus triggering signal transmission and achieving accurate signal transmission. This avoids the wear problem between the moving and stationary parts in traditional settings, ensuring the service life of the keyboard switch. The emitting element 2 and receiving element 3 can be pre-installed on the circuit board 1. During final assembly, simply fasten the balance frame assembly 4 onto the circuit board 1 to complete the assembly, thereby effectively improving production assembly speed and efficiency. By placing the light-shielding element 5 on any one of the first balance frame 41, the second balance frame 42, and the top cover 43, the position of the light-shielding sheet 52 can be adjusted according to the internal structure of the keyboard switch, thereby saving space inside the keyboard switch. The positions of the transmitting element 2 and the receiving element 3 on the circuit board 1 can be adjusted accordingly. Combined with the structure of the balance frame assembly 4, the overall keyboard switch becomes thinner and lighter, meeting the usage needs of different users.

[0036] Regarding the specific structural configuration of the light-shielding component 5, as follows: Figures 2 to 4As shown, the light-shielding component 5 includes a connecting piece 51 connected to the balance frame assembly 4, and a light-shielding sheet 52 disposed on the side of the connecting piece 51 and bent downwards. The light-shielding sheet 52 moves vertically between the transmitting element 2 and the receiving element 3. The connecting piece 51 connects the balance frame assembly 4 and the light-shielding sheet 52 and adjusts the position of the light-shielding sheet 52. The light-shielding sheet 52 can be disposed on either side of the connecting piece 51 according to other structures within the keyboard switch, so as to make room for other structures within the keyboard switch while effectively ensuring that the light-shielding sheet 52 can move vertically between the transmitting element 2 and the receiving element 3, making more rational use of space in the keyboard switch and effectively achieving a thinner and lighter design. The downward-bent structure of the light-shielding sheet 52 makes it easier to block the light path between the transmitting element 2 and the receiving element 3, thereby achieving the purpose of signal output and effectively ensuring the accuracy of the keyboard switch.

[0037] Regarding the specific structural configuration of the transmitting element 2 and the receiving element 3, the transmitting element 2 and the receiving element 3 are conventional components in the art, and their structure and operating principle are existing technologies, so they will not be described in detail in this embodiment.

[0038] Regarding the specific structural configuration of the light-shielding component 5, as follows: Figures 2 to 4 As shown, a hollow clearance groove 431 is formed in the middle of the upper cover 43. The light-shielding member 5 is disposed on the inner wall of the clearance groove 431. The clearance groove 431 formed in the upper cover 43 makes way for other structures inside the keyboard switch, thereby making more reasonable and efficient use of the structural space inside the keyboard switch, further realizing the thinness of the keyboard switch and meeting the usage needs of different people. By disposing of the light-shielding member 5 on the inner wall of the clearance groove 431, the space of the keyboard switch is saved. At the same time, its placement on the inner wall is limited and protected by the side of the upper cover 43, which facilitates the up and down movement of the light-shielding piece 52 and ensures the accuracy of the keyboard switch.

[0039] Preferred, such as Figures 2 to 4 As shown, the light-shielding plate 52 is vertically movable between the transmitting element 2 and the receiving element 3, thereby allowing the light-shielding plate 52 to move more precisely up and down between the transmitting element 2 and the receiving element 3, blocking the light path, thereby achieving accurate signal output and ensuring the accuracy of this keyboard switch.

[0040] Preferred, such as Figures 2 to 4 As shown, the light-shielding component 5 is integrally formed with the upper cover 43, thereby effectively ensuring the stability of the position of the light-shielding component 5 and ensuring the normal operation of the keyboard switch.

[0041] For other structures within this keyboard switch, such as Figures 2 to 3As shown, this keyboard switch also includes a keycap 6 disposed on the upper cover 43, a base 7 for fixing the first balance frame 41 and the second balance frame 42, and a fixing plate 8 that passes through the circuit board 1 and fixes the base 7. The keycap 6 is disposed on the upper cover 43 to facilitate pressing and make the pressing force more even. The circuit board 1 is clamped and fixed between the base 7 and the fixing plate 8, thereby effectively preventing the problem that the transmitting element 2 and receiving element 3 on the circuit board 1 cannot be accurately blocked by the light shield 52 due to the movement of the circuit board 1 during use. Furthermore, the base 7 fixes the first balance frame 41 and the second balance frame 42, thereby effectively fixing the light shield 5 on the balance frame assembly 4, preventing the light shield 5 from shifting during pressing and causing the light path to be inaccurately blocked, and further improving the accuracy of this keyboard switch.

[0042] Example 2

[0043] In the first embodiment, the structure of the keyboard switch was described. This embodiment mainly focuses on the differences from other embodiments; identical structures will not be repeated in this embodiment.

[0044] In this second embodiment, as Figures 5 to 7 As shown, the light-shielding member 5 is disposed on the inner side wall of the first balance frame 41, and the light-shielding plate 52 moves up and down between the transmitting element 2 and the receiving element 3. By disposing of the light-shielding member 5 on the inner side wall of the first balance frame 41, it is protected by the limiting effect of the first balance frame 41, thus ensuring the normal operation of the light-shielding member 5.

[0045] Preferred, such as Figures 5 to 7 As shown, the connecting piece 51 extends inclined towards the center along the tilt direction of the first balance frame 41, thus better conforming to the structure and operating direction of the first balance frame 41. The light-shielding piece 52 is disposed on the outer wall of the connecting piece 51, thereby making room for other structures in the keyboard switch to achieve space saving and thinning, while also facilitating the integral formation of the light-shielding piece 5 on the first balance frame 41, which is conducive to being driven by the first balance frame 41 for precise operation and to achieving stable positioning.

[0046] Example 3

[0047] In the first embodiment, the structure of the keyboard switch was described. This embodiment mainly focuses on the differences from other embodiments; identical structures will not be repeated in this embodiment.

[0048] In this third embodiment, as Figures 8 to 10As shown, the light-shielding member 5 is disposed on the inner side wall of the second balance frame 42, and the light-shielding plate 52 moves up and down between the transmitting element 2 and the receiving element 3. By disposing of the light-shielding member 5 on the inner side wall of the second balance frame 42, it is protected by the limiting effect of the second balance frame 42, thus ensuring the normal operation of the light-shielding member 5.

[0049] Preferred, such as Figures 8 to 10 As shown, the connecting piece 51 extends inclined towards the center along the tilting direction of the second balance frame 42, thus better conforming to the structure and operating direction of the second balance frame 42. The light-shielding piece 52 is disposed on the outer wall of the connecting piece 51, thereby allowing the light-shielding piece 52 to make way for other structures in this keyboard switch to achieve space saving and thinning, while also facilitating the integral formation of the light-shielding piece 5 on the second balance frame 42, which is conducive to being driven by the second balance frame 42 for precise operation and to achieving its own stable position.

[0050] It should be noted that the ultra-thin magnetic keyboard switch disclosed in this utility model is an improvement on the specific structure, but the specific control method is not the innovation of this utility model. The circuit board, transmitting element, receiving element, keycap, base, fixing plate, and other components involved in this utility model can be general standard parts or components known to those skilled in the art. Their structure, principle, and control method are all known to those skilled in the art through technical manuals or conventional experimental methods.

[0051] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, other structures obtained by using the same or similar technical features as the above embodiments of the present utility model are all within the protection scope of the present utility model.

Claims

1. An ultra-thin optical axis keyboard switch, characterized in that: The device includes a circuit board, a transmitting element disposed on the circuit board, a receiving element disposed on the circuit board and matched with the transmitting element, a balancing frame assembly disposed on the circuit board, and a light-shielding member formed on the balancing frame assembly. The balancing frame assembly includes a first balancing frame rotatably disposed on the circuit board, a second balancing frame rotatably disposed on the first balancing frame, and a top cover disposed on the first balancing frame and the second balancing frame. The light-shielding member is disposed on any one of the first balancing frame, the second balancing frame, and the top cover.

2. The ultra-thin optical axis keyboard switch according to claim 1, characterized in that: The light-shielding component includes a connecting piece connected to the balance frame assembly, and a light-shielding sheet disposed on the side of the connecting piece and bent downwards, the light-shielding sheet moving up and down between the transmitting element and the receiving element.

3. The ultra-thin optical axis keyboard switch according to claim 1, characterized in that: The upper cover has a hollow relief groove in the middle, and the light-shielding member is disposed on the inner side wall of the relief groove.

4. The ultra-thin optical axis keyboard switch according to claim 2, characterized in that: The light-shielding plate is vertically movable between the transmitting element and the receiving element.

5. The ultra-thin optical axis keyboard switch according to claim 2, characterized in that: The light-shielding component is disposed on the inner side wall of the first balancing frame, and the light-shielding plate moves up and down between the transmitting element and the receiving element.

6. The ultra-thin optical axis keyboard switch according to claim 5, characterized in that: The connecting piece extends inclined toward the center along the tilting direction of the first balance frame, and the light-shielding piece is disposed on the outer side wall of the connecting piece.

7. The ultra-thin optical axis keyboard switch according to claim 2, characterized in that: The light-shielding component is disposed on the inner side wall of the second balance frame, and the light-shielding plate moves up and down between the transmitting element and the receiving element.

8. The ultra-thin optical axis keyboard switch according to claim 7, characterized in that: The connecting piece extends inclined toward the center along the tilting direction of the second balance frame, and the light-shielding piece is disposed on the outer side wall of the connecting piece.

9. The ultra-thin optical axis keyboard switch according to claim 1, characterized in that: It also includes a keycap disposed on the upper cover and a base for fixing the first balance frame and the second balance frame.

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