A high-stroke ultra-thin push-button switch

Abstract

The present invention discloses a high-stroke ultra-thin key switch, which includes a base, a keycap, and a guide core assembly disposed between the keycap and the base. The guide core assembly includes an outer guide core and an inner guide core. The outer guide core includes a pressing bump and an outer clamping edge protruding outward from the edge of the pressing bump, and a small perforation is formed on the pressing bump; the inner guide core includes a pressing protrusion penetrating upward through the small perforation from below, and an inner clamping edge protruding outward from the edge of the pressing protrusion and clamped below the pressing bump; when pressing the keycap downward, the inner guide core is driven to move downward until the upper end surface of the pressing protrusion of the inner guide core is flush with the upper end surface of the pressing bump of the outer guide core, so as to obtain a front-section pressing stroke generated by the inner guide core. Continuing to press, the outer guide core and the inner guide core are driven to move downward together to obtain a rear-section pressing stroke generated by the outer guide core and the inner guide core, so as to obtain a high total pressing stroke. While meeting the requirement of the thin thickness of the product, the present invention improves the total pressing stroke, thereby greatly improving the pressing feel and making the product develop towards thinness.

Description

Technical Field

[0001] The present invention relates to a key switch, and more particularly to a high-stroke ultra-thin key switch. Background Art

[0002] A key switch is a switch widely used on a keyboard. The main structure of this switch includes a base, an upper cover, a static contact piece, a moving contact piece and a guide core. The upper cover and the base enclose to form a receiving cavity. The static contact piece, the moving contact piece and the guide core are arranged in the receiving cavity, and one end of the guide core protrudes outside the receiving cavity. By pressing to control the guide core, the guide core moves up and down, and then acts on the moving contact piece through the guide core, so that the moving contact piece contacts and connects with or separates from the static contact piece, thereby realizing the on and off functions of the key switch.

[0003] Although the above-mentioned existing key switch structure can provide the user with the effect of disconnecting or connecting the static contact piece and the moving contact piece. However, it is found in actual use that there are still many deficiencies in its own structure and use performance, resulting in the existing key switch not achieving the best use effect and working efficiency in actual application.

[0004] All along, the pressing feel and the product thickness of the key switch have not been able to meet the needs of users. For a key switch with a better pressing feel, the overall thickness of the product must be very thick, while for a product with a relatively thin thickness, its pressing feel is greatly restricted. The traditional method of improving the pressing feel is to directly increase the height of the same guide core to obtain a high pressing stroke, thereby improving the pressing feel. However, by directly increasing the height of the guide core, the overall height of the key switch (base) will inevitably be increased. Therefore, it is difficult to meet the requirements of both the pressing feel and the product thickness at the same time.

[0005] At the same time, for the existing illuminated key switch, it is necessary to additionally provide a light guide structure inside the key switch to guide light for the light-emitting element to improve the light-emitting effect. By using the method of additionally providing a light guide structure, it will inevitably occupy the internal space of the key switch, thereby increasing the overall size of the product. At the same time, due to the design of the internal structure of the key switch, it has a blocking effect on light, and the light cannot be well diffused to the middle and outside of the key switch, or there is a phenomenon that only the edge emits light while the middle does not emit light, resulting in a poor overall light-emitting effect of the key switch. Summary of the Invention

[0006] In view of the above deficiencies, the purpose of the present invention is to provide a high-stroke ultra-thin key switch, which can meet the requirement of a thin product thickness while increasing the total pressing stroke, thereby greatly improving the pressing feel, making the product develop towards thinness, and having a good light-emitting effect at the same time.

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

[0008] A high-stroke ultra-thin key switch, comprising a base, a keycap, and a guide core assembly disposed between the keycap and the base, characterized in that the guide core assembly includes an outer guide core and an inner guide core. The outer guide core includes a pressing bump and an outer clamping edge protruding outward from the edge of the pressing bump, and a small through-hole is formed in the pressing bump; the inner guide core includes a pressing protrusion passing upward through the small through-hole and an inner clamping edge protruding outward from the edge of the pressing protrusion and clamped below the pressing bump; when pressing the keycap downward, the inner guide core is driven to move downward until the upper end surface of the pressing protrusion of the inner guide core is flush with the upper end surface of the pressing bump of the outer guide core, obtaining a front pressing stroke generated by the inner guide core. Continuing to press, the outer guide core and the inner guide core are driven to move downward together, obtaining a rear pressing stroke generated by the outer guide core and the inner guide core, so as to obtain a high total pressing stroke.

[0009] As a further improvement of the present invention, a lid is buckled on the base and around the outer guide core, and a large through-hole for the pressing bump to pass through is formed in the lid.

[0010] As a further improvement of the present invention, the outer clamping edge of the outer guide core includes a left outer clamping edge disposed on the left side of the pressing bump and a right outer clamping edge disposed on the right side of the pressing bump; the inner clamping edge includes a left inner clamping edge disposed on the left side of the pressing protrusion and a right inner clamping edge disposed on the right side of the pressing protrusion.

[0011] As a further improvement of the present invention, a conduction assembly is disposed on the base and on the side of the guide core assembly, and a conduction control block is disposed upward on an outer end of the left inner clamping edge.

[0012] As a further improvement of the present invention, the conduction control block is a pressing block located on the inner side of the conduction assembly. The outer side of the pressing block has an upper inclined surface, so that a pressing convex point is provided at the lower end of the pressing block; a first side slot for the pressing block to pass through is formed in an outer side of the pressing bump of the outer guide core, and the first side slot provides a space for the up and down movement of the pressing block.

[0013] As a further improvement of the present invention, the conduction assembly includes a static piece disposed on the base and a moving piece structure disposed on the base and on the outer side of the static piece. The moving piece structure includes a moving piece inserted on the base and on the outer side of the static piece, a plastic convex point disposed on the inner side of the moving piece and on the outer side of the pressing block, and a plastic body disposed on the base and connected to the outer side of the moving piece. The outer side of the upper end of the plastic convex point has a protruding portion corresponding to the pressing convex point of the pressing block, and the outer side of the lower end of the plastic convex point has a lower inclined surface corresponding to the upper inclined surface of the pressing block.

[0014] As a further improvement of the present invention, the conduction component includes a transmitting tube and a receiving tube respectively arranged on the base, the transmitting tube is located on one side of the conduction control block, and the receiving tube is located on the other side of the conduction control block.

[0015] As a further improvement of the present invention, a torsion spring is arranged on the base and located on the outer side of the guide core assembly; a spring block is arranged upward on an outer end portion of the right inner clamping edge of the inner guide core and located on the torsion spring, the outer side of the lower end of the spring block has a spring groove for the torsion spring arm of the torsion spring to be embedded, and the outer side of the upper end of the spring block has an inclined surface of the spring block; a second side slot for the spring block to pass through is provided on the other outer side edge of the pressing protrusion of the outer guide core, and the second side slot provides a clearance space for the up and down movement of the spring block.

[0016] As a further improvement of the present invention, an inner guide core guide groove is recessed upward on the lower end surface of the pressing protrusion of the inner guide core, and a guide shaft is protruded downward in the middle of the inner guide core guide groove; a guide column is protruded upward on the base and directly below the pressing protrusion, and a base guide groove for inserting the guide shaft is recessed downward in the direction of the central axis of the guide column; a reset spring is provided outside the guide shaft and the guide column, and the upper end of the reset spring is embedded in the inner guide core guide groove, and the lower end is arranged around the outer periphery of the guide column, and the reset spring provides elastic restoring force for the upward reset movement of the guide core assembly.

[0017] As a further improvement of the present invention, the base is arranged on a PCB board, a sinker hole is opened on the PCB board, and the middle part of the lower end of the base is embedded in the sinker hole.

[0018] As a further improvement of the present invention, it also includes a balance frame arranged between the base and the keycap and surrounding the cover and the guide core assembly, the balance frame includes a balance rod A whose lower end is connected to the base and whose upper end is connected to the keycap, and a balance rod B whose lower end is connected to the base and whose upper end is connected to the keycap, the balance rod A and the balance rod B are both closed frame structures, and the balance rod A and the balance rod B are cross-arranged in the middle; an insertion shaft is respectively arranged on the two opposite outer sides of the balance rod A, and a socket for inserting the insertion shaft is respectively arranged on the two opposite inner sides of the balance rod B.

[0019] As a further improvement of the present invention, an embedding groove is provided on the balancing frame, an LED lamp embedded in the embedding groove of the balancing frame is arranged on the PCB board, and the balancing frame is made of a transparent or translucent material.

[0020] As a further improvement of the present invention, a plurality of light-transmitting holes are provided on the cover, and the core guide assembly is made of a transparent or translucent material.

[0021] The beneficial effects of the present invention are:

[0022] (1) The guide core component is composed of an outer guide core and an inner guide core. When pressing down the guide core component, two-stage strokes can be obtained. The first-stage pressing stroke is generated by acting on the inner guide core alone, and the second-stage pressing stroke is generated by acting on both the outer guide core and the inner guide core simultaneously. Under the same product thickness requirement, a higher total stroke can be obtained. That is, under the same pressing stroke requirement, the product height is reduced, the overall thickness becomes thinner, the pressing feel is greatly improved, and at the same time, the product develops towards thinness;

[0023] (2) By embedding the middle part of the lower end of the base into the counterbore of the PCB board to form a counterbore structure, the product height is further reduced, making the product thickness thinner;

[0024] (3) A transparent or semi-transparent balance bracket is used to guide light for the LED lamp, eliminating the need for an additional light guide structure, saving internal space, and allowing the light to diverge to the surrounding area, achieving both a good lighting effect and saving internal space of the product.

[0025] The above is an overview of the technical solution of the invention. The following further describes the present invention in conjunction with the drawings and specific embodiments. Brief Description of the Drawings

[0026] Figure 1 is an exploded view of the present invention;

[0027] Figure 2 is a structural schematic diagram of the present invention;

[0028] Figure 3 is another structural schematic diagram of the present invention;

[0029] Figure 4 is a schematic diagram of the overall external structure of the present invention;

[0030] Figure 5 is a sectional view of the present invention;

[0031] Figure 6 is a structural schematic diagram of the outer guide core of the present invention;

[0032] Figure 7 is a structural schematic diagram of the inner guide core of the present invention;

[0033] Figure 8 is an assembly schematic diagram of the LED lamp of the present invention. Detailed Description of the Preferred Embodiments

[0034] To further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose, the following details the specific embodiments of the present invention in conjunction with the drawings and preferred embodiments.

[0035] Please refer to Figures 1 to 8, an embodiment of the present invention provides a high-stroke ultra-thin key switch, which includes a PCB board 1, a base 2 disposed on the PCB board 1, a keycap 3 disposed above the base 2, a guide core assembly 4 movably disposed up and down between the keycap 3 and the base 2, a conduction assembly 5 disposed on the base 2 and on the side of the guide core assembly 4, and an elastic member 6 disposed on the base 2 and below the guide core assembly 4. In this embodiment, the lower end surface of the base 2 is connected to the PCB board 1 through a plurality of fixing feet. The guide core assembly 4 includes an outer guide core 41 and an inner guide core 42. A lid 7 is buckled on the base 2 and around the outer guide core 41, and a large through-hole 71 is opened on the lid 7; as Figure 6 shown, the outer guide core 41 includes a pressing convex block 411 passing through the large through-hole 70 from bottom to top, and an outer clamping edge 412 protruding outward from the lower edge of the pressing convex block 411 and clamped to the lower end of the lid 7. A small through-hole 4111 is opened on the pressing convex block 411; as Figure 7 shown, the inner guide core 42 includes a pressing protrusion 421 passing through the small through-hole 4111 from bottom to top, and an inner clamping edge 422 protruding outward from the lower edge of the pressing protrusion 421 and clamped to the lower end of the pressing convex block 421. In this embodiment, a clamping hole for the inner clamping edge 422 of the inner guide core 42 to be inserted is provided in the pressing convex block 411 of the outer guide core. When pressing the keycap 3 downward, the inner guide core 42 is driven to move downward until the upper end surface of the pressing protrusion 421 is flush with the upper end surface of the pressing convex block 411 of the outer guide core 41, obtaining a front pressing stroke generated by the inner guide core 42. Continuing to press, the outer guide core 41 and the inner guide core 42 are driven to move downward together, obtaining a rear pressing stroke generated by the outer guide core 41 and the inner guide core 42, so as to obtain a high total pressing stroke.

[0036] In this embodiment, as Figure 6 shown, the outer clamping edge 412 of the outer guide core 41 includes a left outer clamping edge 4121 disposed on the left side of the pressing convex block 411 and a right outer clamping edge 4122 disposed on the right side of the pressing convex block 411; as Figure 6 shown, the inner clamping edge 422 includes a left inner clamping edge 4221 disposed on the left side of the pressing protrusion 411 and a right inner clamping edge 4222 disposed on the right side of the pressing protrusion 411.

[0037] In this embodiment, a conduction control block 423 is upwardly provided on an outer end of the left inner clamping edge 4221. When the conduction control block 423 has different structures, conduction assemblies 5 with different structures can be adopted to achieve the conduction function. Two different specific implementation manners are described in detail in this embodiment.

[0038] One of the specific implementation manners is, as Figure 7As shown, the conduction control block 423 is a pressing block 423' located on the inner side of the conduction component 5. The outer side of the pressing block 423' has an upper inclined surface 4231, so that there is a pressing bump 4232 at the lower end of the pressing block 423'; as Figure 6 As shown, a first side slot 4112 for the pressing block 423' to pass through is provided on an outer side of the pressing bump 411 of the outer guide core 41. The first side slot 4112 provides a space for the up and down movement of the pressing block 423'.

[0039] As Figure 1 And Figure 2 As shown, the conduction component 5 includes a static piece 51 arranged on the base, and a moving piece structure 52 arranged on the base 2 and located on the outer side of the static piece 51. Among them, the moving piece structure 52 includes a moving piece 521 inserted on the base 2 and located on the outer side of the static piece 51, a plastic bump 522 arranged on the inner side of the moving piece 521 and located on the outer side of the pressing block 423', and a plastic body 523 arranged on the base 2 and connected to the outer side of the moving piece 521. The outer side of the upper end of the plastic bump 522 has a protruding portion 5221 corresponding to the pressing bump 4232 of the pressing block 423', and the outer side of the lower end of the plastic bump 5221 has a lower inclined surface 52211 corresponding to the upper inclined surface 4231 of the pressing block 423'.

[0040] Another specific implementation manner is that the conduction component 5 includes a transmitting tube and a receiving tube respectively arranged on the base 2. The transmitting tube is located on one side of the conduction control block 423, and the receiving tube is located on the other side of the conduction control block 423. When the guide core component 4 is not pressed, the conduction control block 423 is between the transmitting tube and the receiving tube, blocking the light emitted by the transmitting tube, and the receiving tube cannot receive the light, so the key switch is in the off state; when the guide core component 4 is pressed downward, the conduction control block 423 moves downward away from between the transmitting tube and the receiving tube, then the receiving tube receives the light emitted by the transmitting tube, and the key switch is in the on state.

[0041] In this embodiment, in order to improve the user experience, a sound - generating structure is added to the key switch. As Figure 1 And Figure 2 As shown, a torsion spring 8 is arranged on the base 2 and on the outer side of the guide core component 4; an elastic block 424 is arranged upward at an outer end of the right inner clamping edge 4222 of the inner guide core 42 and is located on the torsion spring 8. The outer side of the lower end of the elastic block 424 has an elastic groove 4241 for the torsion spring arm of the torsion spring 8 to be embedded, and the outer side of the upper end of the elastic block 424 has an elastic block inclined surface 4242; a second side slot 4113 for the elastic block 424 to pass through is provided on the other outer side of the pressing bump 411 of the outer guide core 41. The second side slot 4113 provides a space for the up and down movement of the elastic block 424.

[0042] During the repeated up and down movement of the lead core assembly 4, in order to improve the stability of the overall structure, the lead core assembly 4 moves up and down in the vertical direction, and at the same time provides an upward elastic restoring force to the lead core assembly 4. As Figure 5 shown, in this embodiment, an inner lead core guide groove 4211 is concavely provided upward on the lower end surface of the pressing protrusion 421 of the inner lead core 42, and a guide shaft 4212 is convexly provided downward in the middle of the inner lead core guide groove 4211; on the base 2 and directly below the pressing protrusion 421, a guide post 21 is convexly provided upward, and a base guide groove 22 for inserting the guide shaft 4212 is concavely provided downward in the central axis direction of the guide post 21; the elastic member 6 is a return spring 6' sleeved outside the guide shaft 4212 and the guide post 21, and the upper end of the return spring 6' is embedded in the inner lead core guide groove 4211, and the lower end is surrounded by the guide post 21. The return spring 6' provides an elastic restoring force for the upward reset movement of the lead core assembly 4.

[0043] In order to further shorten the overall height of the key switch and make the product develop towards thinness, as Figure 1 and Figure 5 shown, a counterbore hole 11 is provided on the PCB board 1, and the middle part of the lower end of the base 2 is embedded in the counterbore hole 11, occupying a part of the position of the PCB board 1, so as to shorten the overall height of the key switch.

[0044] In order to further improve the pressing balance of the key switch so that conduction can be achieved regardless of pressing any position on the keycap 3, as Figure 1 and Figure 3 shown, the key switch of this embodiment further includes a balance frame 9 disposed between the base 2 and the keycap 3 and surrounding the lid 7 and the lead core assembly 4. The balance frame 9 includes a balance rod A 91 with the lower end connected to the base 2 and the upper end connected to the keycap 3, and a balance rod B 92 with the lower end connected to the base 2 and the upper end connected to the keycap 3. Both the balance rod A 91 and the balance rod B 92 are of a closed frame structure, and the middle parts of the balance rod A 91 and the balance rod B 92 are cross-set; on the two opposite outer sides of the balance rod A 91, a plug shaft is respectively provided, and on the two opposite inner sides of the balance rod B 92, a socket for inserting the plug shaft is respectively provided.

[0045] In order to make the key switch produce a lighting effect, as Figure 8As shown in the figure, in this embodiment, an embedding groove 93 is formed in the balance bracket 9, and an LED lamp 10 embedded in the embedding groove 93 of the balance bracket 9 is arranged on the PCB board 1. The balance bracket 9 is made of a transparent material or a translucent material. In this embodiment, the balance bracket 9 is used for light guiding, eliminating the need for an additional light guiding structure and saving the internal space of the key switch. At the same time, in order to further improve the light emitting effect, a plurality of light transmission holes 72 are formed in the cover 7, and the light guiding core assembly 4 is made of a transparent or translucent material. In order to improve the limiting effect of the cover 7 on the up and down movement of the light guiding core assembly 4 and the structural stability, the cover 7 of this embodiment is an iron cover.

[0046] The working principle of the present invention is as follows:

[0047] When the keycap 3 is pressed downward, the keycap 3 moves downward, driving the inner light guiding core 42 to move downward, compressing the return spring 6'. Until the upper end surface of the pressing protrusion 421 of the inner light guiding core 42 is flush with the upper end surface of the pressing protrusion 411 of the outer light guiding core 41, continue to press, the keycap 3 drives the pressing protrusion 411 of the outer light guiding core 41 and the pressing protrusion 421 of the inner light guiding core 42 to move downward at the same time. During this process, since the pressing convex point 4232 of the pressing block 423' on the inner light guiding core 42 moves downward, it disengages from the protruding portion 5221 of the plastic convex point 522 on the moving piece structure 52 and slides along the lower inclined surface 52211 of the plastic convex point 5221, making the lower inclined surface 52211 match the upper inclined surface 4231 of the pressing block 423', so that the moving piece 521 rebounds and contacts the static piece 51 to conduct. When the pressing on the keycap 3 is released, under the action of the elastic restoring force of the return spring 6', the inner light guiding core 42 is driven to move upward. When the inner light guiding core 42 moves upward until the inner clamping edge 422 contacts the pressing protrusion 411 of the outer light guiding core 41, the outer light guiding core 41 is driven to move upward at the same time until it returns to the natural state. During this process, the pressing convex point 4232 of the pressing block 423' on the inner light guiding core 42 contacts the protruding portion 5221 of the plastic convex point 522 on the moving piece structure 52 again and pushes the moving piece structure 52 outward, and the moving piece 521 separates from the static piece 51, so that the key switch is disconnected. Of course, an emitting tube and a receiving tube can also be used as the conducting component 5 to realize the conducting and disconnecting functions.

[0048] The above is only a preferred embodiment of the present invention, and does not impose any limitation on the technical scope of the present invention. Therefore, other structures obtained by adopting the same or similar technical features as those of the above embodiments of the present invention are all within the protection scope of the present invention.

Claims

1. A high-stroke ultra-thin key switch, comprising a base, a keycap and a guide core assembly disposed between the keycap and the base, characterized in that The guide core assembly includes an outer guide core and an inner guide core, the outer guide core includes a pressing protrusion and an outer clamping edge protruding outwardly at the edge of the pressing protrusion, and a small through hole is provided on the pressing protrusion; the inner guide core includes a pressing protrusion passing through the small through hole from bottom to top and an inner clamping edge protruding outwardly at the edge of the pressing protrusion and clamped under the pressing protrusion; when the keycap is pressed downward, the inner guide core is driven to move downward until the upper end surface of the pressing protrusion is flush with the upper end surface of the pressing protrusion of the outer guide core, so as to obtain the front section pressing stroke generated by the inner guide core, and continue to press, so as to drive the outer guide core and the inner guide core to move downward together, so as to obtain the rear section pressing stroke generated by the outer guide core and the inner guide core, so as to obtain a high total pressing stroke; an inner guide core guide groove is concavely provided upwardly on the lower end surface of the pressing protrusion of the inner guide core, and a pressure relief groove is formed on the inner guide core. A guide shaft is protruded downwardly from the middle of the inner guide core guide groove; a guide column is protruded upwardly on the base and located directly below the pressing protrusion, and a base guide groove for the guide shaft to be inserted is recessed downwardly in the direction of the central axis of the guide column; a return spring is arranged outside the guide shaft and the guide column, and the upper end of the return spring is embedded in the inner guide core guide groove, and the lower end is arranged around the outer periphery of the guide column, and the return spring provides elastic restoring force for the upward return movement of the guide core assembly; the outer clamping edge of the outer guide core includes a left outer clamping edge arranged on the left side of the pressing protrusion and a right outer clamping edge arranged on the right side of the pressing protrusion; the inner clamping edge includes a left inner clamping edge arranged on the left side of the pressing protrusion and a right inner clamping edge arranged on the right side of the pressing protrusion; a conduction assembly is arranged on the base and located on the side of the guide core assembly, A conduction control block is arranged upward on an outer end portion of the left inner card; the conduction control block is a pressing block located on the inner side of the conduction component, and the outer side of the pressing block has an upper inclined surface, so that a pressing convex point is provided at the lower end of the pressing block; a first side slot for the pressing block to pass through is provided on an outer side of the pressing convex block of the outer guide core, and the first side slot provides a clearance space for the pressing block to move up and down; the conduction component includes a static piece arranged on the base and a movable piece structure arranged on the base and located on the outer side of the static piece, wherein the movable piece structure includes a movable piece inserted on the base and located on the outer side of the static piece, a plastic convex point arranged on the inner side of the movable piece and located on the outer side of the pressing block, and a A plastic body, wherein the outer side of the upper end of the plastic protrusion has a protrusion corresponding to the pressing protrusion of the pressing block, and the outer side of the lower end of the plastic protrusion has a lower inclined surface corresponding to the upper inclined surface of the pressing block; the keycap is pressed downward, the keycap moves downward, drives the inner guide core to move downward, compresses the reset spring, until the inner guide core moves downward to the point where the upper end surface of the pressing protrusion is flush with the upper end surface of the pressing protrusion of the outer guide core, and continues to press, the keycap drives the pressing protrusion of the outer guide core and the pressing protrusion of the inner guide core to move downward at the same time, in this process, due to the downward movement of the pressing protrusion of the pressing block on the inner guide core, it is separated from the protruding part of the plastic protrusion on the moving plate structure, and slides along the lower inclined surface of the plastic protrusion, so that the lower inclined surface matches the upper inclined surface of the pressing block, so that the moving plate rebounds and contacts and conducts with the static plate;When the pressing force on the keycap is released, under the elastic restoring force of the reset spring, the inner guide core is driven to move upward. When the inner guide core moves upward until the inner clamping edge contacts the pressing bump of the outer guide core, the outer guide core is simultaneously driven to move upward until it returns to the natural state. During this process, the pressing convex point of the pressing block on the inner guide core re-contacts the protruding part of the plastic convex point on the moving piece structure and pushes the moving piece structure outward, separating the moving piece from the static piece, thereby disconnecting the key switch.

2. The high-stroke ultra-thin key switch according to claim 1, wherein A lid is buckled on the base and around the outer guide core, and a large through hole for the pressing bump to pass through is formed in the lid.

3. The high-stroke ultra-thin key switch according to claim 1, characterized in that, The conduction component includes a transmitting tube and a receiving tube respectively arranged on the base. The transmitting tube is located on one side of the conduction control block, and the receiving tube is located on the other side of the conduction control block.

4. The high-stroke ultra-thin key switch according to claim 1, characterized in that, A torsion spring is arranged on the base and outside the guide core assembly; an elastic block located on the torsion spring is upwardly arranged at an outer end of the right inner clamping edge of the inner guide core. An elastic groove for the torsion spring arm of the torsion spring to be embedded is provided on the outer side of the lower end of the elastic block, and an elastic block inclined surface is provided on the outer side of the upper end of the elastic block; a second side slot for the elastic block to pass through is formed on the other outer side of the pressing bump of the outer guide core, and the second side slot provides a space for the up and down movement of the elastic block.

5. The high-stroke ultra-thin key switch according to claim 1, characterized in that, The base is arranged on a PCB board, and a counterbore hole is formed in the PCB board. The middle part of the lower end of the base is embedded in the counterbore hole.

6. The high-stroke ultra-thin key switch according to claim 5, characterized in that It further includes a balance frame arranged between the base and the keycap and surrounding the lid and the guide core assembly. The balance frame includes a balance rod A with the lower end connected to the base and the upper end connected to the keycap and a balance rod B with the lower end connected to the base and the upper end connected to the keycap. Both the balance rod A and the balance rod B are of a closed frame structure, and the middle parts of the balance rod A and the balance rod B are cross - arranged; insertion shafts are respectively arranged on the two opposite outer sides of the balance rod A, and insertion holes for the insertion shafts to be inserted are respectively arranged on the two opposite inner sides of the balance rod B.

7. The high-stroke ultra-thin key switch according to claim 6, characterized in that, An embedding groove is formed in the balance frame, and an LED lamp embedded in the embedding groove of the balance frame is arranged on the PCB board, and the balance frame is made of a transparent or semi - transparent material.

8. The high-stroke ultra-thin key switch according to claim 7, characterized in that, A plurality of light - transmitting holes are formed in the lid, and the guide core assembly is made of a transparent or semi - transparent material.

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