A waterproof and dustproof mechanical keyboard switch

Abstract

The present invention discloses a waterproof and dustproof mechanical keyboard switch, comprising a base, and a cover covering the base, the base and the cover are combined to form a receiving cavity, an upper opening is provided on the cover and located at the upper end of the receiving cavity, and the invention is characterized in that it also comprises a guide core movably arranged in the receiving cavity and at the upper end of the upper opening, a conducting component arranged on the base, and a flexible component arranged on the base and located at the side of the guide core, wherein the lower end of the guide core is connected to the upper end of the base by a spring; the conducting component comprises a static sheet and a dynamic sheet, the flexible component comprises a flexible sheet, the lower end of the side of the guide core has a boss, the dynamic sheet is located at the outer side of the flexible sheet, and the boss moves up and down with the guide core on the inner side of the plane where the flexible sheet is located. The present invention has a reasonable structural design, adopts a new keyboard switch conduction and disconnection mode, has precise and sensitive structural action, high performance stability, and has waterproof and dustproof effects and a long service life.

Description

Technical Field

[0001] The invention relates to a keyboard switch, in particular to a waterproof and dustproof mechanical keyboard switch. Background Art

[0002] A mechanical keyboard switch is a switch on a mechanical keyboard that is used to control the closure of keys. Many operations of electronic devices require the use of a keyboard switch as a means of input. The performance of the keyboard switch determines the experience of the input device.

[0003] Due to the limitations of the internal structure design, traditional keyboard switches have disadvantages such as inaccurate conduction and disconnection processes and insensitive pressing. At the same time, since there is no dustproof and waterproof structure, the product performance of the keyboard switch decreases after a long period of use, and the service life is greatly shortened. Summary of the invention

[0004] In view of the above-mentioned deficiencies, the purpose of the present invention is to provide a waterproof and dustproof mechanical keyboard switch with a reasonable structural design. It adopts a new keyboard switch conduction and disconnection method. The structure has precise and sensitive action and high performance stability. It also has waterproof and dustproof effects and a long service life.

[0005] The technical solution adopted by the present invention to achieve the above-mentioned purpose is:

[0006] A waterproof and dustproof mechanical keyboard switch, comprising a base and a cover covering the base, the base and the cover are combined to form a receiving cavity, an upper opening is provided on the cover and located at the upper end of the receiving cavity, and the switch also comprises a guide core movably arranged in the receiving cavity and at the upper end of the upper opening, a conducting component arranged on the base, and a flexible component arranged on the base and located at the side of the guide core, wherein the lower end of the guide core is connected to the upper end of the base through a spring; the conducting component comprises a static sheet and a dynamic sheet, and the flexible component comprises a A flexible sheet, wherein the lower end of the guide core side has a boss, the movable sheet is located on the outer side of the flexible sheet, and the boss moves up and down along the inner side of the plane where the flexible sheet is located following the guide core; when the guide core is in an unpressed state, the boss of the guide core squeezes the flexible sheet to cause deformation, exerts a force on the movable sheet, causes the contact point of the movable sheet to move away from the contact point of the static sheet, and the keyboard switch is disconnected; when the guide core is pressed downward, the force exerted by the boss of the guide core on the flexible sheet gradually moves downward, causes the deformation produced by the flexible sheet to no longer act on the movable sheet, the contact point of the movable sheet contacts the contact point of the static sheet, and the keyboard switch is turned on.

[0007] As a further improvement of the present invention, a flexible convex hull is provided on the inner side of the flexible sheet.

[0008] As a further improvement of the present invention, a guide core slot is provided at the center position of the upper end of the base, a guide column is protruding upward at the center position of the guide core slot, and a guide hole is provided downward at the center of the guide column; an annular groove is provided at the lower end of the guide core, an insertion column is protruding downward at the center position of the annular groove, the insertion column is inserted into the guide hole, and the upper end of the spring is sleeved on the outside of the insertion column, and the lower end is sleeved on the outside of the guide column.

[0009] As a further improvement of the present invention, a conductive component slot for inserting a conductive component is provided on the base and located on the side of the guide core slot. The conductive component slot is separated from the guide core slot by a partition, and a connecting opening is provided on the partition, and the flexible sheet is arranged on the connecting opening.

[0010] As a further improvement of the present invention, the static piece is inserted into the conductive component slot and is located on a side edge close to the conductive core slot, and the dynamic piece is inserted into the conductive component slot and is located on the side edge of the static piece, so that the static contact on the static piece and the dynamic contact on the dynamic piece are arranged opposite to each other.

[0011] As a further improvement of the present invention, it also includes a waterproof and dustproof cover covering the conductive component slot, the waterproof and dustproof cover includes a cover body, the lower end of the cover body has an outer containing groove, and the side of the cover body is provided with a card plate, and a side opening arranged opposite to the connecting opening is opened on the card plate; the flexible component also includes a flexible body, the flexible sheet is arranged on the side of the flexible body, the lower end of the flexible body has an inner containing groove, the flexible body is inserted into the outer containing groove, and the outer wall of the flexible body is in contact with the inner wall of the outer containing groove, so that the flexible sheet is arranged opposite to the side opening.

[0012] As a further improvement of the present invention, a card platform is arranged on the upper end of the card plate, and a card block is arranged on the upper end of the flexible sheet, and the card block is arranged on the upper end of the card platform.

[0013] As a further improvement of the present invention, a colloid is closely arranged on the inner wall around the conductive component slot, and a colloid opening is arranged on the side of the colloid and opposite to the connecting opening, and the cover body of the waterproof and dustproof cover is covered on the colloid.

[0014] As a further improvement of the present invention, the guide core side has a bent portion, and the boss is arranged on the bent portion; the two ends of the connecting opening of the partition are bent toward the inner side of the guide component slot to form a clearance portion for the bent portion and the boss to slide up and down.

[0015] As a further improvement of the present invention, the thickness of the flexible sheet is smaller than the thickness of the partition, the movable sheet has a bent portion, and the bent portion of the movable sheet is embedded in the opening of the encapsulated body.

[0016] The beneficial effects of the present invention are as follows: through the coordinated design of the guide core with a boss and the additional flexible component, the deformation generated by the flexible sheet pushes or does not push the moving sheet, so that the moving contact on the moving sheet is separated from or contacts the static contact on the static sheet, thereby realizing the disconnection and conduction functions of the keyboard switch, and the structural action is precise, sensitive, and the performance stability is high; through the design of the waterproof and dustproof cover, in conjunction with the setting of the encapsulated body, a sealed whole is formed between the base, the waterproof and dustproof cover and the flexible component, which plays a role of sealing, waterproofing and dustproofing, and improving the quality and service life of the keyboard switch.

[0017] 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

[0018] Figure 1 This is a schematic diagram of the assembly of the first embodiment;

[0019] Figure 2 This is a schematic diagram of the external structure of the first embodiment;

[0020] Figure 3 It is a partial cross-sectional view of the first embodiment in a non-pressed state;

[0021] Figure 4 This is a schematic diagram of a portion of the structure of Embodiment 1 in a non-pressed state;

[0022] Figure 5 It is a partial structural diagram of the second embodiment;

[0023] Figure 6 This is a schematic diagram of the assembly of the second embodiment;

[0024] Figure 7 This is a schematic diagram of the structure of the waterproof and dustproof cover of the second embodiment;

[0025] Figure 8 This is a schematic diagram of the structure of the flexible component of Example 2;

[0026] Fig. 9 This is a schematic diagram of the structure of the waterproof and dustproof cover combined with the flexible component in the second embodiment;

[0027] Fig.10 This is a schematic diagram of the structure of the base of Example 2;

[0028] Fig.11 It is a schematic diagram of a part of the structure of the first embodiment in a half-pressed state;

[0029] Fig.12 It is a partial cross-sectional view of the first embodiment in a half-pressed state;

[0030] Fig.13 It is a partial cross-sectional view of the first embodiment in a fully pressed state;

[0031] Fig.14 This is a schematic diagram of the structure of the waterproof and dustproof cover combined with the flexible component in Example 3;

[0032] Fig.15 It is a cross-sectional view of the waterproof and dustproof cover combined with the flexible component when the third embodiment is in a pressed state;

[0033] Fig.16 It is a cross-sectional view of the waterproof and dustproof cover combined with the flexible component when the third embodiment is in an unpressed state. DETAILED DESCRIPTION

[0034] 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.

[0035] Embodiment 1:

[0036] Please refer to Figures 1 to 4 ,and Figures 11 to 13 The present embodiment provides a waterproof and dustproof mechanical keyboard switch, comprising a base 1 and a cover 2 covering the base 1, wherein the base 1 and the cover 2 are combined to form a receiving cavity, and an upper opening 21 is provided on the cover 2 and located at the upper end of the receiving cavity. The keyboard switch of the present embodiment further comprises a guide core 3 movably arranged in the receiving cavity and at the upper end of the upper opening 21, a conducting component 4 arranged on the base 1, and a flexible component 5 arranged on the base 1 and located at the side of the guide core 3, wherein the lower end of the guide core 3 is connected to the upper end of the base 1 by a spring 6; the conducting component 4 comprises a static sheet 41 and a dynamic sheet 42, and the flexible component 5 comprises a flexible sheet 51, the lower end of the side of the guide core 3 has a boss 31, the movable sheet 42 is located on the outer side of the flexible sheet 51, and the boss 31 moves up and down along the inner side of the plane where the flexible sheet 51 is located following the guide core 3; when the guide core 3 is in an unpressed state, the boss 31 of the guide core 3 squeezes the flexible sheet 51 to cause deformation, and exerts a force on the movable sheet 42, so that the contact point of the movable sheet 42 is away from the contact point of the static sheet 41, and the keyboard switch is disconnected; when the guide core 3 is pressed downward, the force of the boss 31 of the guide core 3 on the flexible sheet 51 gradually moves downward, so that the deformation generated by the flexible sheet 51 no longer acts on the movable sheet 42, the contact point of the movable sheet 42 contacts the contact point of the static sheet 41, and the keyboard switch is turned on.

[0037] like Figure 3As shown, a guide core slot 11 is provided at the center position of the upper end of the base 1, a guide column 12 is protruding upward at the center position of the guide core slot 11, and a guide hole 13 is provided downward at the center of the guide column 12; an annular groove 32 is provided at the lower end of the guide core 3, an insertion column 33 is protruding downward at the center position of the annular groove 32, the insertion column 33 is inserted into the guide hole 13, and the upper end of the spring 6 is sleeved on the outside of the insertion column 33, and the lower end is sleeved on the outside of the guide column 12.

[0038] like Figure 4 As shown, a conducting component slot 14 for inserting the conducting component 4 is provided on the base 1 and located at the side of the core guide slot 11. The conducting component slot 14 is separated from the core guide slot 11 by a partition 15, and a connecting opening is provided on the partition 15. The flexible sheet 51 is arranged on the connecting opening. At the same time, the static sheet 41 is inserted into the conducting component slot 14 and located on a side close to the core guide slot 11, and the moving sheet 42 is inserted into the conducting component slot 14 and located on the side of the static sheet 41, so that the static contact 411 on the static sheet 41 and the moving contact 421 on the moving sheet 42 are arranged opposite to each other.

[0039] The working principle of this embodiment is:

[0040] like Figure 3 and Figure 4 As shown, when the guide core 3 is not pressed, the boss 31 on the guide core 3 squeezes the flexible sheet 51, causing the flexible sheet 51 to produce a deformation section 53, and the deformation section 53 pushes the movable sheet 42 of the conductive component 4, causing the movable contact 421 on the movable sheet 42 to separate from the static contact 411 on the static sheet 41, thereby disconnecting the movable sheet 42 from the static sheet 41, thereby realizing the disconnection function of the keyboard switch.

[0041] like Fig.11 and Fig.12 As shown, when the guide core 3 is pressed down a certain distance under the action of external force, the boss 31 on the guide core 3 moves downward with the guide core 3, and the extrusion position of the boss 31 on the flexible sheet 51 moves downward, so that the deformation segment 53' generated by the flexible component 5 moves downward. At this time, the original deformation segment 53 of the flexible sheet 51 is restored to its original position by the elastic force of the movable sheet 42. Therefore, since the deformation segment 53' generated by the flexible component 5 moves downward, the deformation segment 53' no longer pushes the movable sheet 42 of the conductive component 4, and the movable contact 421 on the movable sheet 42 contacts the static contact 411 on the static sheet 41, thereby realizing the conductive function of the keyboard switch.

[0042] like Fig.13 As shown, after the guide core 3 is pressed to the bottom under the action of external force, when there is no external force, due to the elastic restoring force of the spring 6, the guide core 3 returns to the initial position, that is, the keyboard switch is disconnected, as shown in FIG. Figure 3 As shown, a working cycle is completed.

[0043] Embodiment 2:

[0044] Please refer to Figures 5 to 10 The main difference between this embodiment and the first embodiment is that:

[0045] The keyboard switch of this embodiment further includes a waterproof and dustproof cover 7 covering the conductive component slot 14. Figure 7 As shown, the waterproof and dustproof cover 7 includes a cover body 71, the lower end of the cover body 71 has an outer accommodating groove 711, and a clamping plate 712 is provided on the side of the cover body 71, and a side opening 7121 arranged opposite to the communication opening is opened on the clamping plate 712; Figure 8 As shown, the flexible component 5' also includes a flexible body 52, the flexible sheet 51 is arranged on the side of the flexible body 52, and the lower end of the flexible body 52 has an inner groove 521. The flexible body 52 is inserted into the outer accommodating groove 711, and the outer wall of the flexible body 52 is in contact with the inner wall of the outer accommodating groove 711, so that the flexible sheet 51 is arranged opposite to the side opening 7121, as shown in FIG. Fig. 9 shown.

[0046] At the same time, if Figure 7 and Figure 8 As shown, a clamping platform 7122 is disposed on the upper end of the clamping plate 712 , and a clamping block 512 is disposed on the upper end of the clamping platform 7122 . The flexible sheet 51 has a clamping block 512 on the upper end. The clamping block 512 is clamped on the upper end of the clamping platform 7122 .

[0047] like Fig.10 As shown, a colloid body 8 is closely disposed on the inner wall around the conductive component slot 14 , and a colloid body opening is disposed on the side of the colloid body 8 and opposite to the communication opening, and the cover body 71 of the waterproof and dustproof cover 7 covers the colloid body 8 .

[0048] like Fig.11 As shown, the guide core 3 has a curved portion 34 on its side, and the boss 31 is disposed on the curved portion 34; both ends of the connecting opening of the partition 15 are bent toward the inner side of the guide component slot 14 to form a clearance portion for the curved portion 34 and the boss 31 to slide up and down.

[0049] Meanwhile, in this embodiment, the thickness of the flexible sheet 51 is smaller than the thickness of the partition 15 , and the movable sheet 42 has a bent portion 422 , and the bent portion 422 of the movable sheet 42 is embedded in the opening of the encapsulated body.

[0050] Embodiment three:

[0051] Please refer to Figure 1 , Figures 14 to 16 The main difference between this embodiment and the first or second embodiment is that a flexible convex bump 511 is provided on the inner side of the flexible sheet 51 .

[0052] In this embodiment, due to the presence of the flexible convex hull 511 on the flexible sheet 51, when the flexible sheet 51 is squeezed by the boss 31 of the guide core, the flexible convex hull 511 is squeezed and deformed, such as Fig.16 As shown, the flexible convex bump 511 bulges in the opposite direction and pushes the moving contact 421 on the moving piece 42 to separate from the static contact 411 on the static piece 41, so that the moving piece 42 is disconnected from the static piece 41, and the disconnection function of the keyboard switch is realized. When the boss 31 on the guide core 3 moves downward with the guide core 3, the extrusion position of the boss 31 on the flexible piece 51 moves downward, and the elastic force of the moving piece 42 restores the flexible convex bump 511 to its original position. Therefore, the flexible convex bump 511 no longer pushes the moving piece 42 of the conductive component 4, and the moving contact 421 on the moving piece 42 contacts the static contact 411 on the static piece 41, and the conductive function of the keyboard switch is realized.

[0053] The focus of the present invention is mainly that, through the coordinated design of the guide core with a boss and the additional flexible component, the deformation generated by the flexible sheet pushes or does not push the moving sheet, so that the moving contact on the moving sheet is separated from or contacts the static contact on the static sheet, thereby realizing the disconnection and conduction functions of the keyboard switch, and the structural action is precise, sensitive, and the performance stability is high; through the design of the waterproof and dustproof cover, coordinated with the setting of the encapsulated body, a sealed whole is formed between the base, the waterproof and dustproof cover and the flexible component, which plays a role of sealing, waterproofing and dustproofing, and improving the quality and service life of the keyboard switch.

[0054] 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 waterproof and dustproof mechanical keyboard switch, comprising a base and a cover covering the base, wherein the base and the cover are combined to form a receiving cavity, and an upper opening is provided on the cover at the upper end of the receiving cavity, wherein: It also includes a guide core that is movably arranged in the accommodating cavity and at the upper end of the upper opening, a conductive component arranged on the base, and a flexible component arranged on the base and located on the side of the guide core, wherein the lower end of the guide core is connected to the upper end of the base by a spring; the conductive component includes a static sheet and a dynamic sheet, and the flexible component includes a flexible sheet, and the lower end of the side of the guide core has a boss, and the dynamic sheet is located on the outer side of the flexible sheet, and the boss moves up and down along the inner side of the plane where the flexible sheet is located with the guide core; when the guide core is in an unpressed state, the boss of the guide core squeezes the flexible sheet to produce deformation, and exerts a force on the dynamic sheet, so that the contact point of the dynamic sheet is away from the contact point of the static sheet, and the keyboard switch is disconnected; when the guide core is pressed downward The force of the boss of the guide core on the flexible sheet gradually moves downward, so that the deformation of the flexible sheet no longer acts on the moving sheet, the contact of the moving sheet contacts the contact of the static sheet, and the keyboard switch is turned on. It also includes a waterproof and dustproof cover covering the slot of the conductive component, the waterproof and dustproof cover includes a cover body, the lower end of the cover body has an external accommodating groove, and the side of the cover body is provided with a card plate, and a side opening arranged opposite to the connecting opening is opened on the card plate; the flexible component also includes a flexible body, the flexible sheet is arranged on the side of the flexible body, the lower end of the flexible body has an internal accommodating groove, the flexible body is inserted into the external accommodating groove, and the outer wall of the flexible body is in contact with the inner wall of the external accommodating groove, so that the flexible sheet is arranged opposite to the side opening.

2. The waterproof and dustproof mechanical keyboard switch according to claim 1, characterized in that: A flexible convex hull is provided on the inner side of the flexible sheet.

3. The waterproof and dustproof mechanical keyboard switch according to claim 1 or 2, characterized in that: A guide core slot is provided at the center position of the upper end of the base, a guide column is protruding upward from the center position of the guide core slot, and a guide hole is provided downward at the center of the guide column; an annular groove is provided at the lower end of the guide core, an insertion column is protruding downward from the center position of the annular groove, the insertion column is inserted into the guide hole, and the upper end of the spring is sleeved on the outside of the insertion column, and the lower end is sleeved on the outside of the guide column.

4. The waterproof and dustproof mechanical keyboard switch according to claim 3, characterized in that: A conducting component slot for inserting a conducting component is provided on the base and located at the side of the conducting core slot. The conducting component slot is separated from the conducting core slot by a partition, and a connecting opening is provided on the partition. The flexible sheet is arranged on the connecting opening.

5. The waterproof and dustproof mechanical keyboard switch according to claim 4, characterized in that: The static piece is inserted into the conducting component slot and is located on a side close to the guide core slot, and the dynamic piece is inserted into the conducting component slot and is located on the side of the static piece, so that the static contact on the static piece and the dynamic contact on the dynamic piece are arranged oppositely.

6. The waterproof and dustproof mechanical keyboard switch according to claim 1, characterized in that: A card platform is arranged on the upper end of the card plate, and a card block is arranged on the upper end of the flexible sheet. The card block is arranged on the upper end of the card platform.

7. The waterproof and dustproof mechanical keyboard switch according to claim 6, characterized in that: A colloid is closely arranged on the inner wall around the conductive component slot, and a colloid opening is arranged on the side of the colloid and opposite to the connecting opening. The cover body of the waterproof and dustproof cover is covered on the colloid.

8. The waterproof and dustproof mechanical keyboard switch according to claim 4, characterized in that: The guide core has a curved portion on its side, and the boss is disposed on the curved portion; both ends of the connecting opening of the partition are bent toward the inner side of the guide component slot to form a clearance portion for the curved portion and the boss to slide up and down.

9. The waterproof and dustproof mechanical keyboard switch according to claim 8, characterized in that: The thickness of the flexible sheet is smaller than that of the partition plate. The movable sheet is provided with a bending portion, and the bending portion of the movable sheet is embedded in the opening of the encapsulated body.

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