Infrared touch keyboard

Abstract

The invention discloses an infrared touch keyboard in the technical field of hardware manufacturing, the infrared touch keyboard comprises a key board and a plurality of keys, the key board is provided with a plurality of mounting grooves, and the keys are mounted in the mounting grooves. The trigger assembly is arranged on the side, opposite to the installation end faces of the keys, of the key board, the multiple trigger light paths of the trigger assembly form the infrared light net, the infrared light net covers the distribution range of the multiple keys, and the infrared light net is provided with the multiple trigger light paths on the bottom end faces of the corresponding keys. The multiple trigger light paths are triggered through the keys at the corresponding positions, the multiple trigger light paths jointly judge the trigger actions of the corresponding keys, when one or more trigger light paths in the corresponding keys are damaged, the trigger actions of the keys can be judged through the other corresponding trigger light paths, and when the trigger light path parts in the trigger assembly cannot work normally, the trigger light paths in the trigger assembly can not work normally. And the trigger signal can still be generated at the corresponding key, so that the normal use of the keyboard is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of hardware manufacturing, in particular to an infrared touch keyboard. Background Art

[0002] A keyboard is a device used to input commands and data for operating equipment. It also refers to a set of function keys arranged systematically to operate a machine or device. Keyboards are a primary tool used in office systems, allowing users to enter both text and data. Users input programs, commands, and data into the computer through keystrokes, making them a crucial tool for computer control. Optical switch keyboards are a recent innovation. They build upon traditional mechanical switch technology with the addition of new optical sensing technology. By replacing the traditional contact paddle with an optical sensor, they address some of the issues inherent in traditional contact-based mechanical switches. This "optical switch" technology utilizes infrared optical sensing, eliminating contact points and wear during conduction. Furthermore, the optical mechanical signal is an optical pulse, resulting in a clean, noise-free output waveform, completely eliminating contact jitter and enabling ultra-fast response times of less than 1ms.

[0003] The infrared LED lights corresponding to the keys in the current optical axis keyboard are damaged, and the key trigger signals cannot be detected, causing the corresponding keys to fail to work, resulting in some keys on the keyboard being unable to input, affecting the overall use of the keyboard and resulting in poor performance. Summary of the Invention

[0004] The purpose of the present invention is to provide an infrared touch keyboard to solve the problem that the infrared LED lamp corresponding to the key in the optical axis keyboard proposed above is damaged and the key trigger signal cannot be detected, resulting in the corresponding key failure.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] In the first aspect, the present invention provides an infrared touch keyboard, comprising a keypad and multiple keys, wherein the keypad is provided with several installation slots, the keys are installed in the installation slots, a trigger component is provided on the side of the keypad opposite to the keys, the trigger component emits multiple infrared lights and receives multiple infrared lights and forms multiple trigger light paths, multiple groups of the trigger light paths form an infrared light network, the distribution range of the infrared light network covers the distribution range of multiple keys, the infrared light network has multiple trigger light paths on the corresponding keys, and the trigger light paths are used to detect the trigger action of the keys.

[0007] As a further solution of the present invention: the button includes a freely retractable trigger shaft;

[0008] When in use, the corresponding button on the keypad is pressed to trigger the bottom end of the trigger shaft freely passes through the infrared light network, and the trigger shaft is used to block the trigger corresponding to the multiple trigger light paths, so that the trigger light paths detect the triggering action of the button.

[0009] As a further solution of the present invention: the cross-section of the bottom end of the trigger shaft is circular or rectangular.

[0010] As a further solution of the present invention: the trigger component includes a first touch circuit board and a first receiving circuit board, multiple infrared emitting ends are connected to the first touch circuit board, and multiple infrared receiving ends are connected to the first receiving circuit board. The first touch circuit board is fixedly installed on one side of the key board relative to the key, and the first receiving circuit board is fixedly installed on the other side of the key board relative to the key. The infrared emitting end of the first touch circuit board emits multiple infrared lights, and the infrared receiving end of the first receiving circuit board receives multiple infrared lights and forms multiple trigger light paths in the first direction or the second direction. The multiple trigger light paths in the first direction or the second direction form an infrared light network.

[0011] As a further solution of the present invention: the trigger component also includes a second touch circuit board and a second receiving circuit board, multiple infrared emitting ends are connected to the second touch circuit board, and multiple infrared receiving ends are connected to the second receiving circuit board. The second touch circuit board is fixedly installed on the short side of the key board opposite to the key, and the second receiving circuit board is fixedly installed on the short side of the key board opposite to the key. The infrared emitting end of the second touch circuit board emits multiple infrared lights, and the infrared receiving end of the second receiving circuit board receives multiple infrared lights and forms multiple trigger optical paths in the second direction. The multiple trigger optical paths in the first direction and the multiple trigger optical paths in the second direction are coupled to form an infrared optical network.

[0012] As a further solution of the present invention: the infrared transmitting end is an infrared LED lamp, and the infrared receiving end is an infrared receiving head.

[0013] As a further solution of the present invention: the multiple trigger light paths in the first direction and the multiple trigger light paths in the second direction are vertically staggered, and the vertical spacing between the multiple trigger light paths in the first direction and the multiple trigger light paths in the second direction is 0.5 mm-2 mm.

[0014] As a further solution of the present invention: the multiple infrared lights emitted by the infrared emitting end are distributed at angles of 30°-65°.

[0015] As a further solution of the present invention: the multiple infrared emitting ends on the first touch circuit board and the multiple infrared receiving ends on the first receiving circuit board are equidistantly arranged and the spacing between them is equal, and the multiple infrared emitting ends on the second touch circuit board and the multiple infrared receiving ends on the second receiving circuit board are equidistantly arranged and the spacing between them is equal.

[0016] As a further solution of the present invention: the key panel also includes a mounting plate, the cross-section of the mounting plate is concave, the edge of the key panel is connected to the mounting plate, and the vertical end of the mounting plate is installed with the first touch circuit board, the first receiving circuit board, the second touch circuit board and the second receiving circuit board.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the present invention, a trigger component is provided on the side of the installation end surface of the keypad opposite to the key, and multiple trigger optical paths of the trigger component form an infrared light network. The infrared light network covers the distribution range of multiple keys, and the infrared light network has multiple trigger optical paths on the bottom end surface of the corresponding keys. The multiple trigger optical paths are triggered by the corresponding keys, and the multiple trigger optical paths jointly judge the triggering action of the corresponding keys. If one or more of the trigger optical paths of the corresponding keys is damaged, the triggering action of the keys can be judged by other corresponding trigger optical paths. When the trigger optical path part in the trigger component cannot work normally, the trigger signal can still be generated for the corresponding key, thereby ensuring the normal use of the keyboard and significantly improving the stability and durability of the keyboard.

[0019] 2. In the present invention, multiple groups of infrared rays emitted by multiple infrared emitting ends on the first touch circuit board are received by multiple infrared receiving ends on the first receiving circuit board, forming multiple trigger light paths. The multiple trigger light paths form an infrared light network that intersects in the first direction or the second direction. The infrared light network has multiple trigger light paths at the bottom of the corresponding key, making the entire trigger component compact in structure, occupying a small space, and reducing the overall thickness of the keyboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the keypad structure from above of the present invention;

[0021] Figure 2 This is a schematic diagram of the front view of the keypad of the present invention;

[0022] Figure 3 It is a schematic side view of the keypad structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the first touch circuit board of the present invention emitting infrared light in a first direction;

[0024] Figure 5 This is a schematic diagram of the first touch circuit board of the present invention emitting infrared light in the second direction;

[0025] Figure 6 This is a schematic diagram of the structure of the second touch circuit board emitting infrared light of the present invention;

[0026] Figure 7It is a schematic diagram of the connection structure of the mounting plate of the present invention.

[0027] In the figure: 1. keypad; 11. mounting plate; 2. key; 21. trigger shaft; 3. trigger assembly; 31. first touch circuit board; 32. first receiving circuit board; 33. second touch circuit board; 34. second receiving circuit board. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Example:

[0030] See also Figure 1-Figure 7 In an embodiment of the present invention, an infrared touch keyboard includes a keypad 1 and multiple keys 2. The keypad 1 is provided with multiple mounting slots, and the keys 2 are mounted in the mounting slots. A trigger component 3 is provided on the side of the keypad 1 opposite to the keys 2. The trigger component 3 emits multiple infrared lights and receives multiple infrared lights to form multiple trigger optical paths. The multiple groups of trigger optical paths form an infrared optical network. The distribution range of the infrared optical network covers the distribution range of the multiple keys 2. The infrared optical network has multiple trigger optical paths at the corresponding keys 2, and the trigger optical paths are used to detect the triggering action of the keys 2.

[0031] Specifically, in the present invention, a trigger component 3 is provided on the side of the installation end surface of the key board 1 relative to the key 2, and multiple trigger optical paths of the trigger component 3 form an infrared light network. The infrared light network covers the distribution range of multiple keys 2, and the infrared light network has multiple trigger optical paths on the bottom end surface of the corresponding key 2. The multiple trigger optical paths are triggered by the corresponding key 2, and the multiple trigger optical paths are allowed to jointly judge the triggering action of the corresponding key 2. If one or more of the trigger optical paths of the corresponding key 2 is damaged, the triggering action of the key 2 can be judged by other corresponding trigger optical paths. When the trigger optical path part in the trigger component 3 cannot work normally, a trigger signal can still be generated at the corresponding key 2, thereby ensuring the normal use of the keyboard, significantly improving the stability and durability of the keyboard, and in a complex electromagnetic environment, the keyboard can still maintain excellent performance, ensuring that each key 2 operation can be accurately identified.

[0032] Furthermore, the multiple trigger optical paths on the trigger component 3 are grouped, and the multiple groups of trigger optical paths are judged into several levels. When button 2 triggers the first-level trigger optical path, the trigger action of button 2 is judged. When the trigger component 3 fails, causing the first-level trigger optical path to fail, the trigger action of button 2 will be judged based on the second-level trigger optical path. The levels of the trigger optical path groups in the trigger component 3 decrease successively and are used to judge the trigger action of button 2. A multi-level redundant design of the trigger optical path group is performed, which further reduces the problem of button 2 failure caused by the unusable part of the trigger optical path in the trigger component 3, and at the same time reduces the repeated processing of the trigger signal generated by the trigger optical path, and has a good use effect.

[0033] Furthermore, the keypad 1 is made of metal materials, including copper, iron, aluminum, and their alloys. This metal material offers excellent electrical conductivity and heat dissipation, ensuring the keyboard maintains stability and reliability during long-term use. The metal keypad 1 also effectively shields external electromagnetic interference, further enhancing the keyboard's ability to resist interference in complex electromagnetic environments. Furthermore, the metal keypad's durability allows the keyboard to withstand significant external impact, extending its lifespan.

[0034] Preferably, Figure 1-Figure 3 As shown, the button 2 includes a freely retractable trigger shaft 21;

[0035] When in use, press the corresponding button 2 on the trigger button panel 1, and the bottom end of the trigger shaft 21 freely passes through the infrared light network. The trigger shaft 21 is used to block the corresponding multiple trigger light paths so that the trigger light path detects the trigger action of the button 2.

[0036] Specifically, the shape of the bottom end of the trigger shaft 21 matches the layout of the infrared light network, ensuring that when the button 2 is pressed, the trigger shaft 21 can accurately block the corresponding trigger light path, thereby triggering the generation of the signal. In addition, the free extension and retraction characteristics of the trigger shaft 21 make the trigger action of the button 2 more sensitive, and the user's feel when pressing the button is more comfortable, which improves the response speed of the keyboard and further enhances the stability and durability of the keyboard.

[0037] Furthermore, the trigger shaft 21 is made of engineering plastic, which has good elasticity and wear resistance, ensuring that it is not easily damaged during long-term use.

[0038] Preferably (not shown), the cross-section of the bottom end of the trigger shaft 21 is circular or rectangular.

[0039] Specifically, the bottom cross-section of the trigger shaft 21 is circular or rectangular, which can provide a larger downward triggering area, thereby triggering multiple triggering light paths at the same time, facilitating the triggering identification of the corresponding button 2.

[0040] Preferably, Figure 2-Figure 5 As shown, the trigger component 3 includes a first touch circuit board 31 and a first receiving circuit board 32. The first touch circuit board 31 is connected to multiple infrared emitting ends, and the first receiving circuit board 32 is connected to multiple infrared receiving ends. The first touch circuit board 31 is fixedly installed on one side of the key board 1 relative to the key 2, and the first receiving circuit board 32 is fixedly installed on the other side of the key board 1 relative to the key 2. The infrared emitting end of the first touch circuit board 31 emits multiple infrared lights, and the infrared receiving end of the first receiving circuit board 32 receives multiple infrared lights and forms multiple trigger light paths in the first direction or the second direction. The multiple trigger light paths in the first direction or the second direction form an infrared light network.

[0041] The keypad 1 is in a rectangular shape as a whole, the long side of the keypad 1 extends in a first direction, and the short side of the keypad 1 extends in a second direction.

[0042] Specifically, multiple groups of infrared rays emitted by multiple infrared emitting ends on the first touch circuit board 31 are received by multiple infrared receiving ends on the first receiving circuit board 32, forming multiple trigger light paths, forming multiple trigger light paths in the first direction or the second direction, and multiple trigger light paths form an intersecting infrared light network in the first direction or the second direction. The infrared light network has multiple trigger light paths at the bottom of the corresponding key 2, so that the entire trigger component 3 has a compact structure, occupies a small space, and can reduce the overall thickness of the keyboard.

[0043] Furthermore, the multiple trigger optical paths formed by the first touch circuit board 31 and the first receiving circuit board 32 are grouped, and the multiple groups of trigger optical paths are judged into several levels. When the trigger shaft 21 triggers the first level trigger optical path, the trigger action of the trigger shaft 21 is judged. When a fault occurs in the infrared transmitting end of the first touch circuit board 31 or the infrared receiving end of the first receiving circuit board 32, resulting in the failure of the first level trigger optical path, the trigger action of the trigger shaft 21 will be judged according to the second level trigger optical path. The levels of the trigger optical path groups decrease in sequence and are used to judge the trigger action of the trigger shaft 21. A multi-level redundant design of the trigger optical path group is performed to ensure the overall stable operation of the keyboard and reduce the repeated processing of the trigger signal generated by the trigger optical path.

[0044] Preferably, Figure 3 and Figure 6As shown, the trigger component 3 also includes a second touch circuit board 33 and a second receiving circuit board 34. Multiple infrared emitting ends are connected to the second touch circuit board 33, and multiple infrared receiving ends are connected to the second receiving circuit board 34. The second touch circuit board 33 is fixedly installed on the short side of the key board 1 on the side opposite to the key 2, and the second receiving circuit board 34 is fixedly installed on the short side of the key board 1 on the other side opposite to the key 2. The infrared emitting end of the second touch circuit board 33 emits multiple infrared lights, and the infrared receiving end of the second receiving circuit board 34 receives multiple infrared lights and forms multiple trigger optical paths in the second direction. The multiple trigger optical paths in the first direction and the multiple trigger optical paths in the second direction are coupled to form an infrared optical network.

[0045] Specifically, after multiple trigger light paths form an infrared light network in the first direction, multiple trigger light paths in the second direction are formed on the short side of the key panel 1 through the second touch circuit board 33 and the second receiving circuit board 34, and the multiple trigger light paths in the second direction are coupled with the multiple trigger light paths in the first direction to form a denser mesh-crossed infrared light network, so that more trigger light paths are formed at the bottom of the corresponding key 2, so that the corresponding key 2 can form a more precise trigger action recognition. At the same time, the denser mesh-crossed infrared light network has denser trigger light paths at the edge of the key panel 1, which can make the trigger action recognition of the key 2 installed on the edge of the key panel 1 more sensitive and accurate, thereby ensuring the accurate and fast recognition of the global key 2 of the keyboard.

[0046] Furthermore, multiple trigger optical paths in the first direction and multiple trigger optical paths in the second direction are coupled to form multiple trigger optical paths in the infrared optical network and grouped, and multiple groups of trigger optical paths are judged to several levels. When the trigger shaft 21 triggers the trigger optical path of the first level, the trigger action of the trigger shaft 21 is judged. When a fault occurs in the infrared transmitting end of the first touch circuit board 31, the infrared transmitting end of the second touch circuit board 33, the infrared receiving end of the first receiving circuit board 32 or the infrared receiving end of the second receiving circuit board 34, resulting in the failure of the first level trigger optical path, the trigger action of the trigger shaft 21 will be judged according to the second level trigger optical path. The levels of the trigger optical path groups decrease in sequence and are used to judge the trigger action of the trigger shaft 21. A multi-level redundant design of the trigger optical path group is performed to ensure the overall stable operation of the keyboard and reduce the repeated processing of the trigger signal generated by the trigger optical path.

[0047] Preferably, Figure 4 and Figure 5 As shown in the figure, the infrared transmitting end is an infrared LED light, and the infrared receiving end is an infrared receiving head.

[0048] Specifically, the infrared LED lamp and the infrared receiving head both have the characteristics of high sensitivity and low power consumption, which can ensure the stability and reliability of the infrared optical network. The infrared LED lamp, as the transmitting end, can continuously and stably emit infrared light, while the infrared receiving head, as the receiving end, can accurately capture these infrared light signals, thereby achieving precise triggering of button 2.

[0049] Preferably (not shown), the multiple trigger light paths in the first direction and the multiple trigger light paths in the second direction are vertically staggered, and the vertical spacing between the multiple trigger light paths in the first direction and the multiple trigger light paths in the second direction is 0.5 mm-2 mm.

[0050] Specifically, the vertically staggered distribution of multiple trigger optical paths in the first direction and multiple trigger optical paths in the second direction effectively prevents interference between trigger optical paths in different directions, ensuring that each trigger optical path can operate independently and accurately. This vertically staggered layout also increases optical path redundancy and the number of trigger optical path groups. Even if one optical path is blocked or damaged, the others can still function normally, ensuring stable transmission of the trigger signal for button 2. Furthermore, the vertical spacing of 0.5 mm to 2 mm ensures the independence of the optical paths while avoiding trigger insensitivity caused by excessive spacing.

[0051] Preferably (not shown), the multiple infrared lights emitted by the infrared emitting end are distributed at angles of 30°-65°.

[0052] Specifically, the infrared light distribution angles of 30°-65° emitted by the infrared transmitter ensure that the infrared light covers a larger area, improving the sensitivity of triggering button 2. At the same time, the appropriate distribution angles can also reduce infrared light waste and lower energy consumption. Furthermore, by adjusting the infrared light distribution angle, buttons 2 of different shapes and sizes can be precisely triggered, improving the product's applicability and flexibility.

[0053] Preferably, Figure 4-Figure 6 As shown, the multiple infrared emitting terminals on the first touch circuit board 31 and the multiple infrared receiving terminals on the first receiving circuit board 32 are equidistantly arranged and have equal spacing.

[0054] Specifically, the equidistant arrangement of the multiple infrared transmitters on the first touch circuit board 31 and the multiple infrared receivers on the first receiving circuit board 32 ensures consistent signal transmission distances between each infrared transmitter and its corresponding infrared receiver, further improving the stability and accuracy of signal transmission. This equidistant arrangement also optimizes the uniformity of the trigger area of button 2, ensuring a consistent triggering experience regardless of the user's position on button 2. Furthermore, this equidistant layout simplifies circuit design, reduces production costs, and improves production efficiency.

[0055] Preferably, Figure 4-Figure 6 As shown, the multiple infrared transmitting ends on the second touch circuit board 33 and the multiple infrared receiving ends on the second receiving circuit board 34 are equidistantly arranged and have equal spacing.

[0056] Specifically, the equidistant arrangement of the multiple infrared transmitters on the second touch circuit board 33 and the multiple infrared receivers on the second receiving circuit board 34 ensures consistent signal transmission distances between each infrared transmitter and its corresponding infrared receiver, further improving the stability and accuracy of signal transmission. This equidistant arrangement also optimizes the uniformity of the trigger area of button 2, ensuring a consistent triggering experience regardless of the user's position on button 2. Furthermore, the equidistant layout simplifies circuit design, reduces production costs, and improves production efficiency.

[0057] Preferably, Figure 7 As shown, the key panel 1 also includes a mounting plate 11, the cross-section of the mounting plate 11 is concave, the edge of the key panel 1 is connected to the mounting plate 11, and the vertical end of the mounting plate 11 is installed with a first touch circuit board 31, a first receiving circuit board 32, a second touch circuit board 33 and a second receiving circuit board 34.

[0058] Specifically, the mounting plate 11 is a PVC board, and the vertical end of the mounting plate 11 is used to install the first touch circuit board 31, the first receiving circuit board 32, the second touch circuit board 33 and the second receiving circuit board 34, providing a stable installation foundation for the first touch circuit board 31, the first receiving circuit board 32, the second touch circuit board 33 and the second receiving circuit board 34, and effectively protecting these circuit boards from interference and damage from the external environment. By connecting the mounting plate 11 by the edge, the overall structure of the key panel 1 is more stable, and the durability and reliability of the keyboard are enhanced. In addition, the vertical end of the mounting plate 11 serves as the installation position of the circuit board, which makes the circuit board layout compact and saves space. It also facilitates the connection and management of the circuits, further improving the performance and efficiency of the keyboard.

[0059] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An infrared touch keyboard, comprising a keypad (1) and a plurality of keys (2), wherein the keypad (1) is provided with a plurality of mounting slots, and the keys (2) are mounted in the mounting slots, characterized in that: A trigger component (3) is provided on the side of the keypad (1) opposite to the key (2). The trigger component (3) emits multiple infrared lights and receives multiple infrared lights to form multiple trigger light paths. Multiple groups of the trigger light paths form an infrared light network. The distribution range of the infrared light network covers the distribution range of multiple keys (2). The infrared light network has multiple trigger light paths at the corresponding keys (2). The trigger light paths are used to detect the triggering action of the key (2).

2. The infrared touch keyboard according to claim 1, characterized in that: The button (2) includes a freely retractable trigger shaft (21); When in use, the corresponding key (2) on the keypad (1) is pressed to trigger the trigger, and the bottom end of the trigger shaft (21) freely passes through the infrared light network. The trigger shaft (21) is used to block the triggering of the corresponding multiple trigger light paths, so that the trigger light paths detect the triggering action of the key (2).

3. The infrared touch keyboard according to claim 2, characterized in that: The cross section of the bottom end of the trigger shaft (21) is circular or rectangular.

4. The infrared touch keyboard according to claim 3, characterized in that: The trigger component (3) comprises a first touch circuit board (31) and a first receiving circuit board (32), wherein the first touch circuit board (31) is connected to a plurality of infrared emitting ends, and the first receiving circuit board (32) is connected to a plurality of infrared receiving ends. The first touch circuit board (31) is fixedly mounted on one side of the keypad (1) relative to the keypad (2), and the first receiving circuit board (32) is fixedly mounted on the other side of the keypad (1) relative to the keypad (2). The infrared emitting end of the first touch circuit board (31) emits a plurality of infrared lights, and the infrared receiving end of the first receiving circuit board (32) receives the plurality of infrared lights and forms a plurality of trigger light paths in a first direction or a second direction. The plurality of trigger light paths in the first direction or the second direction form an infrared light network.

5. The infrared touch keyboard according to claim 4, characterized in that: The trigger component (3) further comprises a second touch circuit board (33) and a second receiving circuit board (34), wherein the second touch circuit board (33) is connected to a plurality of infrared emitting ends, and the second receiving circuit board (34) is connected to a plurality of infrared receiving ends, the second touch circuit board (33) is fixedly mounted on the short side of the key board (1) on one side relative to the key (2), and the second receiving circuit board (34) is fixedly mounted on the short side of the key board (1) on the other side relative to the key (2), the infrared emitting end of the second touch circuit board (33) emits a plurality of infrared lights, and the infrared receiving end of the second receiving circuit board (34) receives the plurality of infrared lights and forms a plurality of trigger light paths in a second direction, and the plurality of trigger light paths in the first direction and the plurality of trigger light paths in the second direction are coupled to form an infrared light network.

6. The infrared touch keyboard according to claim 5, characterized in that: The infrared transmitting end is an infrared LED lamp, and the infrared receiving end is an infrared receiving head.

7. The infrared touch keyboard according to claim 6, characterized in that: The multiple triggering light paths in the first direction and the multiple triggering light paths in the second direction are vertically staggered, and the vertical spacing between the multiple triggering light paths in the first direction and the multiple triggering light paths in the second direction is 0.5 mm-2 mm.

8. The infrared touch keyboard according to claim 7, characterized in that: The infrared light distribution angles emitted by the infrared emitting end are 30°-65°.

9. The infrared touch keyboard according to claim 5, characterized in that: The plurality of infrared emitting terminals on the first touch circuit board (31) and the plurality of infrared receiving terminals on the first receiving circuit board (32) are equidistantly arranged and have equal spacings, and the plurality of infrared emitting terminals on the second touch circuit board (33) and the plurality of infrared receiving terminals on the second receiving circuit board (34) are equidistantly arranged and have equal spacings.

10. An infrared touch keyboard according to claim 9, characterized in that: The keypad (1) further comprises a mounting plate (11), the cross section of the mounting plate (11) being concave, the edge of the keypad (1) being connected to the mounting plate (11), and the vertical end of the mounting plate (11) being mounted with a first touch circuit board (31), a first receiving circuit board (32), a second touch circuit board (33) and a second receiving circuit board (34).

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