Pluggable mechanical keyboard switch

Abstract

Disclosed in the present invention is a pluggable mechanical keyboard switch, comprising: a base, a cover, a guide core, a restoring spring and a connection member, which are detachably mounted on a PCB, wherein the guide core extends towards one side of the connection member to form a driving portion, and the connection member is driven by the driving portion; the connection member is a conductive elastic body and comprises a fixing piece, which is embedded on a side edge of the base or the cover, a connecting action arm and a movable contact piece; the movable contact piece comprises a first movable connection arm, which obliquely extends downwards away from one end of the fixing piece, and a second movable connection arm, which obliquely extends downwards away from one end of the fixing piece; and a first static connection contact and a second static connection contact corresponding to the first movable connection arm and the second movable connection arm are provided on the PCB. The present invention has a good contact stability, convenient and quick mounting of a connection structure, a good elastic restoring force, accurate connection and disconnection actions, and can be freely plugged and pulled and is easy to replace, thereby meeting the use requirements of different people.

Description

A pluggable mechanical keyboard switch Technical Field

[0001] The present invention relates to the technical field of key switches, and in particular to a pluggable mechanical keyboard switch. Background Art

[0002] A mechanical keyboard is a more complex keyboard than a membrane keyboard. Mechanical switches are used under the keycaps. Mechanical keyboards are more expensive than membrane keyboards and have the characteristics of better feel, crisp sound, and long mechanical life. However, mechanical switches have poor performance in terms of water and dust resistance, so failures are inevitable.

[0003] The mechanical switches of existing mechanical keyboards are directly soldered to the PCB board, which has obvious drawbacks: once the mechanical switch becomes defective or damaged, it is difficult and costly to replace. End users generally cannot replace it themselves. Even if they can replace it, it is time-consuming and there are soldering hazards. In addition, this existing technology also prevents end users from choosing different types of mechanical switches for different keys on the keyboard according to their own preferences.

[0004] In addition, the conduction structure of the existing mechanical switch needs to be fixed on a structure such as a housing or a conductor core. Its structure is relatively delicate and requires high precision for fixation. It is technically difficult and consumes a lot of manpower and material resources, making it unsuitable for current rapid production needs.

[0005] Summary of the Invention

[0006] In view of the above-mentioned shortcomings, the purpose of the present invention is to provide a pluggable mechanical keyboard switch, which has good contact stability, convenient and quick installation of the conduction structure and good elastic recovery force, accurate conduction and disconnection actions, and can be freely plugged in and out and easily replaced to meet the usage needs of different people.

[0007] The technical solution adopted by the present invention to achieve the above-mentioned object is:

[0008] A pluggable mechanical keyboard switch comprises a base detachably mounted on a PCB, a cover snapped onto the base, a guide core disposed in the middle of the base and extending upwardly through the cover, a return spring sleeved between the guide core and the middle of the base, and a conducting member driven by the guide core and triggered to be turned on and off, wherein the guide core extends a driving portion toward one side of the conducting member, and the conducting member is driven by the driving portion. The conducting member is a conductive elastic body and comprises a fixing plate embedded in a side edge of the base or the cover, a connecting action arm integrally formed with the fixing plate, and a movable contact piece integrally formed at an end of the connecting action arm away from the fixing plate; the movable contact piece comprises a first movable conducting arm integrally formed on the connecting action arm and extending obliquely downwardly toward an end away from the fixing plate, and a second movable conducting arm integrally formed on the connecting action arm and extending obliquely downwardly toward an end away from the fixing plate; and a first static conducting contact and a second static conducting contact corresponding one-to-one to the first movable conducting arm and the second movable conducting arm are provided on the PCB.

[0009] As a further improvement of the present invention, the first movable conducting arm is bent in a direction less than 90 degrees away from the first static conducting contact at a position where it contacts the first static conducting contact to form a first movable conducting contact, and the second movable conducting arm is bent in a direction less than 90 degrees away from the first static conducting contact at a position where it contacts the second static conducting contact to form a second movable conducting contact.

[0010] As a further improvement of the present invention, the tail ends of the first movable conducting arm and the tail ends of the second movable conducting arm are connected to each other.

[0011] As a further improvement of the present invention, the first movable conducting arm and the second movable conducting arm are deformed and pressed against the top of the driving part and are lifted up by the driving part, so that the first movable conducting arm and the second movable conducting arm generate a downward elastic force. When the guide core is pressed downward, under the action of the elastic force, the first movable conducting arm and the second movable conducting arm follow the driving part downward and respectively contact the first static conducting contact and the second static conducting contact to realize electrical signal input; when the guide core is reset under the action of the reset spring, the first movable conducting arm and the second movable conducting arm are lifted up by the driving part, and the first movable conducting arm and the second movable conducting arm follow the driving part downward and respectively disconnect from the first static conducting contact and the second static conducting contact to complete electrical signal transmission.

[0012] As a further improvement of the present invention, the first movable conducting arm and the second movable conducting arm are fixedly connected to the driving part. When the conductive core is pressed downward, the first movable conducting arm and the second movable conducting arm follow the driving part downward and contact the first static conducting contact and the second static conducting contact respectively, thereby realizing electrical signal input; when the conductive core is reset under the action of the reset spring, the first movable conducting arm and the second movable conducting arm are lifted by the driving part, and the first movable conducting arm and the second movable conducting arm follow the driving part and disconnect from the first static conducting contact and the second static conducting contact respectively, thereby completing electrical signal input.

[0013] As a further improvement of the present invention, the base is provided with a conduction clearance hole above the first static conduction contact and the second static conduction contact of the PCB board, allowing the first movable conduction contact and the second movable conduction contact to pass through and respectively contact and conduct with the first static conduction contact and the second static conduction contact.

[0014] As a further improvement of the present invention, at least one pluggable fixing column is provided on the lower end surface of the base.

[0015] As a further improvement of the present invention, the base is provided with a first limiting ridge on the inner wall on one side of the fixing plate, and a first embedding groove for the fixing plate to be embedded is provided between the first limiting ridge and the inner wall of the base.

[0016] As a further improvement of the present invention, a second limiting ridge is provided on the inner wall of the upper cover on one side of the fixing plate, and a second embedding groove for the fixing plate to be embedded is provided between the second limiting ridge and the inner wall of the upper cover.

[0017] As a further improvement of the present invention, the upper end surface of the driving portion and the side edge of the guide core are inclined at an angle less than 90 degrees, and the connecting action arm is pressed against the upper side of the inclined surface by deformation.

[0018] The beneficial effects of the present invention are as follows: by setting the conductive member as a conductive elastomer, the fixing piece thereof is embedded in the base or the cover, so that the installation is convenient and quick and the elastic restoring force is good; when pressed, the conductive member elastically resets, thereby making the first movable conductive arm and the second movable conductive arm conductive with the PCB board; when released, the conductive member is pulled up by the driving part in the guide core, and the first movable conductive arm and the second movable conductive arm are disconnected from the PCB board; during the whole process, the contact stability is good, the conduction and disconnection actions are accurate, and the linkage effect of the guide core and the conductive member enables the mechanical keyboard switch to avoid the situation in which the conduction structure in a conventional keyboard directly extends into the PCB board, thereby achieving easy plugging and unplugging and easy replacement, thereby meeting the needs of different people.

[0019] The above is an overview of the technical solution of the invention. The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0020] BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is an overall schematic diagram of the present invention;

[0022] FIG2 is a cross-sectional view of the present invention;

[0023] FIG3 is an exploded view of the present invention;

[0024] FIG4 is a schematic structural diagram of a conductive member;

[0025] FIG5 is a top view of the base;

[0026] In the figure: 1. Base; 11. Conductive clearance hole; 12. First limiting ridge; 13. First embedding groove; 14. Pluggable fixing column; 15. Positioning column; 2. Cover; 3. Guide core; 31. Driving part; 311. Inclined surface; 4. Reset spring; 5. Conductive part; 51. Fixing plate; 52. Connecting action arm; 53. Moving contact piece; 531. First moving conducting arm; 532. Second moving conducting arm; 5311. First moving conducting contact; 5322. Second moving conducting contact; 6. PCB board; 61. First static conducting contact; 62. Second static conducting contact.

[0027] DETAILED DESCRIPTION

[0028] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings and preferred embodiments.

[0029] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0030] 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 the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0031] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0032] 1 to 5, an embodiment of the present invention provides a pluggable mechanical keyboard switch, comprising a base 1 detachably mounted on a PCB board 6, a cover 2 buckled on the base 1, a guide core 3 disposed in the middle of the base 1 and penetrating upward through the cover 2, a return spring 4 sleeved between the guide core 3 and the middle of the base 1, and a conducting member 5 driven by the guide core 3 and triggered to be turned on and off, wherein the guide core 3 extends a driving portion 31 toward one side of the conducting member 5, the conducting member 5 is driven by the driving portion 31, and the conducting member 5 is a conductive elastomer, including a fixed portion embedded in the side of the base 1 or the cover 2. The fixed plate 51, a connecting action arm 52 integrally formed with the fixed plate 51, and a movable contact piece 53 integrally formed at the end of the connecting action arm 52 away from the fixed plate 51; the movable contact piece 53 includes a first movable conducting arm 531 integrally formed on the connecting action arm 52 and extending obliquely downward toward the end away from the fixed plate 51, and a second movable conducting arm 532 integrally formed on the connecting action arm 52 and extending obliquely downward toward the end away from the fixed plate 51. The PCB board 6 is provided with a first static conducting contact 61 and a second static conducting contact 62 corresponding one-to-one to the first movable conducting arm 531 and the second movable conducting arm 532.

[0033] The first movable conducting arm 531 and the second movable conducting arm 532 are deformed and pressed against the top of the driving part 31 and are lifted up by the driving part 31, so that the first movable conducting arm 531 and the second movable conducting arm 532 generate a downward elastic force. When the guide core 3 is pressed downward, under the action of the elastic force, the first movable conducting arm 531 and the second movable conducting arm 532 follow the driving part 31 downward and contact the first static conducting contact 61 and the second static conducting contact 62 respectively, thereby realizing electrical signal input; when the guide core 3 is reset under the action of the reset spring 4, the first movable conducting arm 531 and the second movable conducting arm 532 are lifted up by the driving part 31, and the first movable conducting arm 531 and the second movable conducting arm 532 follow the driving part 31 downward and disconnect from the first static conducting contact 61 and the second static conducting contact 62 respectively, thereby completing electrical signal input. During the entire process, the mechanical keyboard switch has good contact stability and accurate conduction and disconnection actions. The linkage between the guide core 3 and the conducting member 5 enables the mechanical keyboard switch to avoid the situation in which the conducting structure used in conventional keyboards directly extends into the PCB board 6, thereby achieving easy plugging and unplugging and easy replacement, meeting the needs of different people.

[0034] As for the specific method of conducting the first movable conducting arm 531 and the second movable conducting arm 532 with the PCB board 6, as shown in Figures 2 to 4, the first movable conducting arm 531 is bent in a direction less than 90 degrees away from the first static conducting contact 61 at the position in contact with the first static conducting contact 61 to form a first movable conducting contact 5311, and the second movable conducting arm 532 is bent in a direction less than 90 degrees away from the first static conducting contact 61 at the position in contact with the second static conducting contact 62 to form a second movable conducting contact 5322. The first movable conducting arm 531 and the second movable conducting arm 532 are fixedly connected to the drive unit 31. When the guide core 3 is pressed downward, the first movable conducting arm 531 and the second movable conducting arm 532 follow the drive unit 31 downward and contact the first static conducting contact 61 and the second static conducting contact 62, respectively, to realize electrical signal input. When the guide core 3 is reset under the action of the reset spring 4, the first movable conducting arm 531 and the second movable conducting arm 532 are lifted by the drive unit 31 and follow the drive unit 31 to disconnect from the first static conducting contact 61 and the second static conducting contact 62, respectively, to complete electrical signal input. Throughout this process, the present mechanical keyboard switch has good contact stability and accurate conduction and disconnection. The linkage between the guide core 3 and the conducting member 5 avoids the situation in conventional keyboards where the conducting structure directly extends into the PCB board 6, thereby achieving easy plug-in and easy replacement, meeting the needs of different users.

[0035] As for the specific connection method of the first movable conducting arm 531 and the second movable conducting arm 532, as shown in Figures 2 to 4, the tail ends of the first movable conducting arm 531 and the tail ends of the second movable conducting arm 532 are connected to each other, so that both ends can be electrically connected and conducted, reducing the problem that a certain component cannot work normally after being damaged due to being conducted alone, and further improving the practicality and reliability of the mechanical keyboard switch.

[0036] As for the specific manner in which the first movable conducting arm 531 and the second movable conducting arm 532 pass through the base 1 to be electrically connected to the PCB board 6, as shown in Figures 2 and 5, the base 1 is provided with a conducting clearance hole 11 above the first static conducting contact 61 and the second static conducting contact 62 of the PCB board 6, which allows the first movable conducting contact 5311 and the second movable conducting contact 5322 to pass through and contact and conduct with the first static conducting contact 61 and the second static conducting contact 62 respectively. During the entire process, the mechanical keyboard switch has good contact stability and accurate conduction and disconnection actions. By giving way to the conducting clearance hole 11, the mechanical keyboard switch avoids the situation in which the conducting structure used in conventional keyboards directly extends into the PCB board 6, thereby achieving easy plugging and unplugging and easy replacement, meeting the needs of different people.

[0037] As for the specific method of fixing the base to the PCB board, as shown in Figures 1 to 3, the lower end surface of the base 1 is provided with at least one pluggable fixing column 14. The pluggable fixing column 14 is inserted into the PCB board 6, thereby stably mounting the base 1 on the PCB board 6. When the mechanical keyboard switch needs to be replaced, it is only necessary to pull out the pluggable fixing column 14. Its pluggable and detachable structure avoids the maintenance difficulties caused by the conventional fixed welding method on the market. This structure is freely pluggable and easy to replace, meeting the needs of different people. The symmetrical distribution structure makes the base 1 more evenly stressed during installation, more stable after installation, and facilitates the coordination between various accessories.

[0038] As shown in Figures 2 and 5 , the base 1 has a first retaining ridge 12 on its inner wall on one side of the retaining plate 51. A first insertion groove 13 is defined between the first retaining ridge 12 and the inner wall of the base 2 for the retaining plate 51 to be inserted into. The structure in which the first retaining ridge 12 and the inner wall of the base 1 clamp the retaining plate 51 provides a more stable installation of the retaining plate 51 on the base 1 and reduces the risk of displacement.

[0039] The fixing plate 51 can also be installed on the upper cover. Specifically, a second limiting ridge 12 is provided on the inner wall of the upper cover on one side of the fixing plate 51. A second embedding groove 13 is provided between the second limiting ridge 12 and the inner wall of the upper cover for the fixing plate 51 to be embedded. The second limiting ridge 12 and the inner wall of the upper cover clamp the fixing plate 51, so that the fixing plate 51 is more stably installed on the upper cover, reducing the problem of displacement. Whether the fixing plate 51 is set on the base 1 or the upper cover can be decided according to actual conditions, so no specific restrictions are made in this application.

[0040] To enable the driver 3131 to better lift the connecting arm 52, as shown in FIG2 , the upper end surface of the driver 31 forms an inclined surface 311 with a less than 90-degree angle with the side of the guide core 3, and the connecting arm 52 deforms to press against the inclined surface 311. The inclined surface 311 has the same inclination angle as the connecting arm 52, thereby increasing the contact area between the driver 31 and the connecting arm 52. This facilitates the driver 31 to act on the connecting arm 52, thereby lifting the connecting arm 52 and completing the disconnection between the conductive member 5 and the PCB board 6. This ensures precise disconnection of the mechanical keyboard switch and improves the disconnection efficiency of the mechanical keyboard.

[0041] In order to make the base 1 more stably installed on the PCB, as shown in Figures 1 to 3, a positioning column 15 is provided in the middle of the lower end of the base 1, which cooperates with the pluggable fixing columns 14 on both sides of the positioning column 15 to fix the base 1 in multiple directions, making the installation of the base 1 on the PCB board 6 more stable, more conducive to the coordination between the various components, and avoiding the problem of displacement of the base 1 during use.

[0042] It should be noted that the pluggable mechanical keyboard switch disclosed in this invention is an improvement to its specific structure, and the specific control method is not the innovation of this invention. The cover, guide core, return spring, and other components involved in this invention can be commonly used standard parts or components known to those skilled in the art. Their structure, principles, and control methods are all known to those skilled in the art through technical manuals or routine experimental methods.

[0043] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, other structures obtained by adopting the same or similar technical features as the above-mentioned embodiments of the present invention are within the scope of protection of the present invention.

Claims

1. A pluggable mechanical keyboard switch, characterized in that: The invention comprises a base detachably mounted on a PCB board, a cover buckled on the base, a guide core arranged in the middle of the base and penetrating upwardly through the cover, a return spring sleeved between the guide core and the middle of the base, and a conducting member driven by the guide core and triggered to be turned on and off, wherein the guide core extends a driving portion toward one side of the conducting member, the conducting member is driven by the driving portion, the conducting member is a conductive elastic body, comprising a fixing plate embedded in the side of the base or the cover, a connecting action arm integrally formed with the fixing plate, and a moving contact piece integrally formed at one end of the connecting action arm away from the fixing plate; the moving contact piece comprises a first moving conducting arm integrally formed on the connecting action arm and extending obliquely downwardly away from one end of the fixing plate, and a second moving conducting arm integrally formed on the connecting action arm and extending obliquely downwardly away from one end of the fixing plate, and a first static conducting contact and a second static conducting contact corresponding to the first moving conducting arm and the second moving conducting arm are arranged on the PCB board.

2. The pluggable mechanical keyboard switch according to claim 1, characterized in that: The first movable conducting arm is bent at a position where it contacts the first static conducting contact in a direction less than 90 degrees away from the first static conducting contact to form a first movable conducting contact, and the second movable conducting arm is bent at a position where it contacts the second static conducting contact in a direction less than 90 degrees away from the first static conducting contact to form a second movable conducting contact.

3. The pluggable mechanical keyboard switch according to claim 1, characterized in that: The tail ends of the first movable conducting arm and the tail ends of the second movable conducting arm are connected to each other.

4. The pluggable mechanical keyboard switch according to claim 2, characterized in that: The first movable conducting arm and the second movable conducting arm are deformed and pressed against the top of the driving part and are lifted up by the driving part, so that the first movable conducting arm and the second movable conducting arm generate a downward elastic force. When the guide core is pressed downward, under the action of the elastic force, the first movable conducting arm and the second movable conducting arm follow the driving part downward and contact with the first static conducting contact and the second static conducting contact respectively, thereby realizing electrical signal input; when the guide core is reset under the action of the reset spring, the first movable conducting arm and the second movable conducting arm are lifted up by the driving part, and the first movable conducting arm and the second movable conducting arm follow the driving part downward and disconnect from the first static conducting contact and the second static conducting contact respectively, thereby completing electrical signal input.

5. The pluggable mechanical keyboard switch according to claim 1, characterized in that: The first movable conducting arm and the second movable conducting arm are fixedly connected to the driving part. When the conductive core is pressed downward, the first movable conducting arm and the second movable conducting arm follow the driving part downward and contact the first static conducting contact and the second static conducting contact respectively to realize electrical signal input. When the conductive core is reset under the action of the reset spring, the first movable conducting arm and the second movable conducting arm are lifted by the driving part, and the first movable conducting arm and the second movable conducting arm follow the driving part and disconnect from the first static conducting contact and the second static conducting contact respectively to complete the electrical signal input.

6. The pluggable mechanical keyboard switch according to claim 2, characterized in that: The base is provided with a conduction clearance hole above the first static conduction contact and the second static conduction contact of the PCB board, allowing the first movable conduction contact and the second movable conduction contact to pass through and contact and conduct with the first static conduction contact and the second static conduction contact respectively.

7. The pluggable mechanical keyboard switch according to claim 1, characterized in that: At least one pluggable fixing column is arranged on the lower end surface of the base.

8. The pluggable mechanical keyboard switch according to claim 1, characterized in that: The base is provided with a first limiting convex ridge on the inner wall on one side of the fixing plate, and a first embedding groove for the fixing plate to be embedded is provided between the first limiting convex ridge and the inner wall of the base.

9. The pluggable mechanical keyboard switch according to claim 1, characterized in that: The upper cover is provided with a second limiting convex ridge on the inner wall on one side of the fixing plate, and a second embedding groove for the fixing plate to be embedded is provided between the second limiting convex ridge and the inner wall of the upper cover.

10. The pluggable mechanical keyboard switch according to claim 1, characterized in that: The upper end surface of the driving part and the side edge of the guide core form an inclined surface with an angle less than 90 degrees, and the connecting action arm is pressed against the upper side of the inclined surface by deformation.

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