Pluggable mechanical keyboard switch

Abstract

The invention discloses a pluggable mechanical keyboard switch, which comprises a base, a cover, a guide core, a reset spring and a conducting piece which are detachably arranged on a PCB (Printed Circuit Board), a driving part extends from one side of the guide core towards the conducting piece, the conducting piece is driven by the driving part, the conducting piece is a conductive elastic body, and the reset spring is arranged on the conductive elastic body. Comprising a fixed piece embedded in the 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 conduction arm which obliquely extends downwards towards one end far away from the fixed piece and a second movable conduction arm which obliquely extends downwards towards one end far away from the fixed piece, and a first static conduction contact and a second static conduction contact which correspond to the first movable conduction arm and the second movable conduction arm are arranged on the PCB. The electric connector is good in contact stability, convenient and rapid in conduction structure installation, good in elastic restoring force, accurate in conduction and disconnection action, capable of being freely inserted and pulled and easy to replace so as to meet the use requirements of different people.

Description

Technical Field

[0001] The 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. The cost of a mechanical keyboard is relatively higher than that of a membrane keyboard. It has the characteristics of better feel, crisp sound, and long mechanical life. However, mechanical switches have poor performance in terms of waterproofing and dustproofing, so failures are inevitable.

[0003] The mechanical switches of existing mechanical keyboards are directly soldered on the PCB board, which has obvious defects: once the mechanical switch is defective or damaged, it is difficult to replace the mechanical switch and the maintenance cost is high. End users generally cannot replace it by themselves. Even if they can replace it, it wastes a lot of time and there are hidden dangers of soldering. In addition, this existing technology also prevents end users from choosing different types of mechanical switches for different keys of 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. The structure is relatively delicate and requires high precision for fixation. The technology is difficult and consumes a lot of manpower and material resources, which is not suitable for current rapid production needs. Summary of the invention

[0005] In view of the above-mentioned deficiencies, the object 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.

[0006] The technical solution adopted by the present invention to achieve the above-mentioned purpose is:

[0007] A pluggable mechanical keyboard switch comprises a base detachably mounted on a PCB, 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.

[0008] 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.

[0009] 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.

[0010] 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 contact with the first static conducting contact and the second static conducting contact respectively 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 disconnect from the first static conducting contact and the second static conducting contact respectively to complete electrical signal input.

[0011] 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 conductor 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 conductor 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.

[0012] 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 moving conduction contact and the second moving conduction contact to pass through and respectively contact and conduct with the first static conduction contact and the second static conduction contact.

[0013] As a further improvement of the present invention, at least one pluggable fixing column is provided on the lower end surface of the base.

[0014] As a further improvement of the present invention, a first limiting ridge is provided on the inner wall of the base 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.

[0015] 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.

[0016] As a further improvement of the present invention, the upper end surface of the driving portion 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.

[0017] The beneficial effects of the present invention are as follows: by setting the conducting piece 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 conducting piece is elastically reset, so that the first movable conducting arm and the second movable conducting arm are connected to the PCB board; when released, the conducting piece is pulled up by the driving part in the conducting core, and the first movable conducting arm and the second movable conducting arm are disconnected from the PCB board; during the whole process, the contact stability is good, the conducting and disconnecting actions are accurate, and the linkage action of the conducting core and the conducting piece enables the mechanical keyboard switch to avoid the situation in which the conducting structure used in the conventional keyboard directly extends into the PCB board, thereby achieving easy plugging and unplugging and easy replacement, thereby meeting the needs of different people.

[0018] 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is an overall schematic diagram of the present invention;

[0020] Figure 2 is a cross-sectional view of the present invention;

[0021] Figure 3 An exploded view of the present invention;

[0022] Figure 4 is a schematic diagram of the structure of the conductive part;

[0023] Figure 5 is a top view of the base;

[0024] In the figure: 1. base; 11. conduction 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. conduction member; 51. fixing plate; 52. connecting action arm; 53. moving contact plate; 531. first moving conduction arm; 532. second moving conduction arm; 5311. first moving conduction contact; 5322. second moving conduction contact; 6. PCB board; 61. first static conduction contact; 62. second static conduction contact. DETAILED DESCRIPTION

[0025] In order to further explain 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 in conjunction with the accompanying drawings and preferred embodiments.

[0026] 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 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 a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Please refer to Figures 1 to 5 The 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 arranged 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 elastic body, including a fixing plate 51 embedded in the side of the base 1 or the cover 2 , and a connecting action arm 52 integrally formed with the fixing plate 51, and a moving contact piece 53 integrally formed at the end of the connecting action arm 52 away from the fixing plate 51; the moving contact piece 53 includes a first moving conduction arm 531 integrally formed on the connecting action arm 52 and extending obliquely downward toward the end away from the fixing plate 51, and a second moving conduction arm 532 integrally formed on the connecting action arm 52 and extending obliquely downward toward the end away from the fixing plate 51, and the PCB board 6 is provided with a first static conduction contact 61 and a second static conduction contact 62 corresponding to the first moving conduction arm 531 and the second moving conduction arm 532.

[0030] 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 the input of electrical signals; 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 the input of electrical signals. During the whole process, the mechanical keyboard switch has good contact stability, accurate conduction and disconnection actions, and the linkage effect of the guide core 3 and the conduction member 5 enables the mechanical keyboard switch to avoid the situation in which the conduction 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.

[0031] The specific method of conducting the first movable conducting arm 531 and the second movable conducting arm 532 with the PCB board 6 is as follows: Figures 2 to 4 As shown, the first movable conducting arm 531 is bent at a position where it contacts the first static conducting contact 61 in a direction less than 90 degrees away from the first static conducting contact 61 to form a first movable conducting contact 5311, and the second movable conducting arm 532 is bent at a position where it contacts the second static conducting contact 62 in a direction less than 90 degrees away from the first static conducting contact 61 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 driving part 31. When the guide core 3 is pressed downward, the first movable conducting arm 531 and the second movable conducting arm 532 follow the driving part 31 downward to contact the first static conducting contact 61 and the second static conducting contact 62 respectively, so as to realize the input of electrical signals. 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 driving part 31, and the first movable conducting arm 531 and the second movable conducting arm 532 follow the driving part 31 to disconnect from the first static conducting contact 61 and the second static conducting contact 62 respectively, so as to complete the input of electrical signals. In the whole process, the contact stability of the mechanical keyboard switch is good, the conduction and disconnection actions are accurate, and the linkage action of 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 the conventional keyboard directly extends into the PCB board 6, thereby realizing easy plugging and unplugging, easy replacement, and meeting the needs of different people.

[0032] Regarding the specific connection method of the first movable conducting arm 531 and the second movable conducting arm 532, as shown in FIG. Figures 2 to 4As shown, 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 is conducted alone and cannot work normally after the component is damaged, and further improving the practicality and reliability of the mechanical keyboard switch.

[0033] Regarding the specific manner in which the first movable conducting arm 531 and the second movable conducting arm 532 are electrically connected to the PCB board 6 through the base 1, as shown in FIG. Figure 2 and Figure 5 As shown, the base 1 is provided with a conduction clearance hole 11 above the first static conduction contact 61 and the second static conduction contact 62 of the PCB board 6, which allows the first movable conduction contact 5311 and the second movable conduction contact 5322 to pass through and contact and conduct with the first static conduction contact 61 and the second static conduction contact 62 respectively. During the whole process, the contact stability of the mechanical keyboard switch is good, and the conduction and disconnection actions are accurate. Through the clearance of the conduction clearance hole 11, the mechanical keyboard switch avoids the situation in which the conduction structure used in the conventional keyboard directly extends into the PCB board 6, thereby achieving easy plugging and unplugging and easy replacement to meet the needs of different people.

[0034] Regarding the specific method of fixing the base on the PCB board, Figures 1 to 3 As shown, at least one pluggable fixing column 14 is provided on the lower end surface of the base 1, and the pluggable fixing column 14 is inserted into the PCB board 6, so that the base 1 is stably installed on the PCB board 6. When the mechanical keyboard switch needs to be replaced, only the pluggable fixing column 14 needs to be pulled out. Its pluggable and detachable structure enables the mechanical keyboard switch to avoid the situation where the conventional fixed welding method on the market causes maintenance difficulties. This structure is freely pluggable and easy to replace, meeting the needs of different people. The symmetrically distributed structure makes the base 1 more evenly stressed during installation, more stable after installation, and conducive to the coordination between various accessories.

[0035] Regarding the specific method of installing the fixing plate on the base, Figure 2 and Figure 5 As shown, the base 1 is provided with a first limiting ridge 12 on the inner wall on one side of the fixing plate 51, and a first embedding groove 13 for the fixing plate 51 to be embedded is provided between the first limiting ridge 12 and the inner wall of the base 2. The structure in which the fixing plate 51 is clamped by the first limiting ridge 12 and the inner wall of the base 1 enables the fixing plate 51 to be more stably installed on the base 1, reducing the problem of displacement.

[0036] 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 for the fixing plate 51 to be embedded is provided between the second limiting ridge 12 and the inner wall of the upper cover. 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 and the displacement problem is reduced. 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 restriction is made in the present application.

[0037] In order to enable the driving part 3131 to better lift the connecting action arm 52, as shown in FIG. Figure 2 As shown, the upper end surface of the driving part 31 and the side of the guide core 3 form an inclined surface 311 less than 90 degrees, and the connecting action arm 52 is pressed against the upper side of the inclined surface 311 by deformation. The inclined angle of the inclined surface 311 is the same as the inclined angle of the connecting action arm 52, so that the contact area between the driving part 31 and the connecting action arm 52 is larger, which is more conducive to the driving part 31 acting on the connecting action arm 52, and then lifting the connecting action arm 52 to complete the disconnection between the conductive member 5 and the PCB board 6, so that the disconnection action of the mechanical keyboard switch is accurate, and the disconnection efficiency of the mechanical keyboard is improved.

[0038] In order to make the base 1 more stable when installed on the PCB, Figures 1 to 3 As shown, 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, so that the installation of the base 1 on the PCB board 6 is more stable, which is more conducive to the coordination between the various components and avoids the problem of displacement of the base 1 during use.

[0039] It should be noted that the pluggable mechanical keyboard switch disclosed in the present invention is an improvement on a specific structure, and the specific control method is not the innovation of the present invention. The cover, guide core, return spring and other components involved in the present invention can be general standard parts or components known to those skilled in the art, and their structures, principles and control methods are all known to those skilled in the art through technical manuals or conventional experimental methods.

[0040] The above description is only 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 protection scope 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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