CN214312988U - Key structure - Google Patents

Abstract

The utility model discloses a button structure, button structure includes: one side of the bottom shell is provided with an installation port for communicating the inner space and the outer space of the shell; the fixing part is arranged in the inner space of the shell and close to the mounting opening; the component module comprises an FPC (flexible printed circuit) soft board and at least two keys, wherein the FPC soft board is arranged on one side of the fixing part, which faces the mounting opening; pressing the splenium, pressing the splenium including key cap and conflict piece, conflict piece quantity and the same setting of button quantity, conflict piece first end is located the button and is deviated from FPC soft board one end, key cap quantity and the same setting of button quantity, key cap one side sets up in the installing port, conflict piece second end sets up in key cap towards button one side, a plurality of first ends of conflict piece and second end correspond respectively and contradict the button and deviate from FPC soft board one end and key cap and deviate from installing port one end. The utility model discloses technical scheme reduces when pressing the button with adjacent button linkage, in order to improve the use quality.

Description

Key structure

Technical Field

The utility model relates to a household electrical appliances technical field, in particular to button structure.

Background

The key is one of the necessary parts of electronic products with voice playing function, and most of electronic products provided with keys are concentrated on a plurality of keys in one area.

SUMMERY OF THE UTILITY MODEL

The main object of the present invention is to provide a key structure, which is linked with adjacent keys to improve the quality of use when the keys are pressed.

In order to achieve the above object, the utility model provides a key structure, key structure includes:

the bottom shell is provided with a mounting port which is communicated with the inner space and the outer space of the shell on one side;

the fixing part is arranged in the inner space of the shell and close to the mounting opening;

the component module comprises an FPC (flexible printed circuit) soft board and at least two keys, wherein the FPC soft board is arranged on one side of the fixing part, which faces the mounting opening;

pressing the splenium, including key cap, contact block and bent plate according to the splenium, the same setting of contact block quantity and button quantity, the first end of contact block is located the button and is deviated from FPC soft board one end, key cap quantity sets up with button quantity is the same, key cap one side sets up in the installing port, the contact block second end sets up in key cap towards button one side, the bent plate is elastic material spare, the bent plate sets up between first end of contact block and second end, the contact block sets up along the crooked pitch arc direction interval of bent plate, and is a plurality of the first end of contact block and second end correspond respectively that the conflict button deviates from FPC soft board one end and key cap and deviates from installing port one end.

Optionally, the key cap includes key cap body and spacing, key cap body is provided with the recess towards the contact piece one side, the contact piece second end sets up in the recess, spacing sets up in the recess edge, each the spacing of contact piece offsets with the casing inner space in installing port department inner wall.

Optionally, the shape and size of the second end of the contact block are matched with those of the groove, and the depth of the groove body from the groove bottom to the groove top of the groove is greater than the protruding height of the second end of the contact block on the bent plate.

Optionally, the plurality of keycaps are arranged in the mounting opening in a first arc-shaped arrangement, and the first arc-shaped radius is the same as the arc-shaped radius of the mounting opening on the bottom shell;

the crooked pitch arc direction of bent plate is that the second is circular-arc, the circular-arc radius of second circular-arc radius is the same with the circular-arc radius of installing port on the drain pan sets up, the bent plate sets up with the spacing laminating of key cap.

Optionally, the first end of the contact block is a circular truncated cone, and the surface of the circular truncated cone at the first end of the contact block is abutted against one end of the key, which is far away from the FPC soft board.

Optionally, the component module further comprises a steel plate, the number of the steel plates is the same as that of the keys, the steel plate is arranged in an orthographic projection area of the keys on one side of the FPC soft board, the area of the steel plate is larger than that of the orthographic projection area, and the steel plate is fixedly connected with the FPC soft board.

Optionally, the fixing part includes with steel sheet fixed connection's fixed block and with the fixed block coplane setting fixed protruding, every including a plurality of fixed protruding on the fixed block, it is a plurality of fixed protruding sets up in fixed block towards installing port one side.

Optionally, the steel sheet is provided with fixed passage with the FPC soft board, fixed passage runs through FPC soft board and steel sheet, fixed passage has many, fixed protruding passing the fixed passage of FPC soft board and steel sheet is with fixed steel sheet and FPC soft board.

Optionally, the drain pan includes drain pan body and drain pan limiting plate, the drain pan limiting plate extends to the mounting port middle part parallel from the drain pan body department of mounting port both sides, the inner wall of drain pan body in mounting port department with the drain pan limiting plate forms the fixed mounting position jointly, the fixed part sets up in the fixed mounting position.

Optionally, the fixing portion further includes a fixing body, one side of the fixing block, which is away from the fixing protrusion, is disposed in the fixing body, the fixing blocks are arranged along an extending direction of the fixing body, the fixing body is provided with a first connecting hole penetrating through the fixing body, and the first connecting hole is disposed on one side of the fixing body, which faces the bottom case body;

the bottom shell further comprises a support, the support is arranged in the fixed mounting position, the support is provided with a second connecting hole, and the first connecting hole is matched with the second connecting hole in position, so that the fixing block is connected with the support.

In the technical scheme of the utility model, through setting up the installing port on the drain pan, the mounting sets up in the casing bottom installing port orthographic projection department, and set up FPC soft board towards installing port one side at the mounting, a plurality of button intervals set up on FPC soft board, the button deviates from FPC soft board one end and sets up the first end of the touch block one-to-one respectively, the second end of the touch block sets up in installing port department respectively, thus realize that can press different keys in the casing through pressing different touch blocks outside the casing; meanwhile, the bent plate is arranged between the first end and the second end of the touch block, the plurality of keycaps are respectively arranged on the second end of the touch block, and the touch block is separated from the adjacent touch block through the bent plate, so that the separation between the two adjacent keycaps is driven, and the mutual extrusion between the two adjacent keycaps due to compaction is avoided; secondly because the bent plate has soft characteristic for elastic material spare, and the key cap is compact to the button between, and the movement distance is few when pressing the button to drive adjacent button motion when avoiding pressing the button and cause the mistake and touch, improved the experience of using.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is an assembly structure diagram of a key structure of the present invention at a viewing angle;

fig. 2 is an assembly structure diagram of another view angle of the key structure of the present invention;

FIG. 3 is a schematic view of a bottom case structure of the key structure of the present invention;

FIG. 4 is a schematic view of a key assembly structure of the key structure of the present invention;

FIG. 5 is a schematic view of the AA area slicing structure of FIG. 4;

fig. 6 is a schematic view of the button explosion structure of the button structure of the present invention;

FIG. 7 is a schematic view of the key cap structure of the key structure of the present invention;

fig. 8 is a schematic view of the structure of the button-structure bending plate and the abutting block of the present invention.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, "and/or" in the whole text includes three schemes, taking a and/or B as an example, including a technical scheme, and a technical scheme that a and B meet simultaneously; in addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model mainly provides a key structure, mainly used audio amplifier, key structure includes drain pan, fixed part, components and parts module and presses the splenium, through set up the installing port on the drain pan, the mounting sets up installing port orthographic projection department in the shell bottom, and set up the FPC soft board towards installing port one side at the mounting, a plurality of button intervals set up on the FPC soft board, the button deviates from FPC soft board one end and sets up the first end of touch block one-to-one respectively, the second end of touch block sets up respectively in installing port department, thereby realize that can press different keys in the casing through pressing different touch blocks outside the casing; meanwhile, the bent plate is arranged between the first end and the second end of the touch block, the plurality of keycaps are respectively arranged on the second end of the touch block, and the touch block is separated from the adjacent touch block through the bent plate, so that the separation between the two adjacent keycaps is driven, and the mutual extrusion between the two adjacent keycaps due to compaction is avoided; secondly because the bent plate has soft characteristic for elastic material spare, and the key cap is compact to the button between, and the movement distance is few when pressing the button to drive adjacent button motion when avoiding pressing the button and cause the mistake and touch, improved the experience of using.

The specific structure of the key 32 structure will be mainly described below.

Referring to fig. 1 to 8, in the embodiment of the present invention, the key 32 structure is mainly applied to function control of a sound box, and the key 32 structure includes:

the structure comprises a bottom shell 1, wherein one side of the bottom shell 1 is provided with an installation opening 11 for communicating the inner space and the outer space of the shell;

the fixing part 2 is arranged in the inner space of the shell and close to the mounting opening 11;

the component module comprises an FPC (flexible printed circuit) soft board 31 and at least two keys 32, wherein the FPC soft board 31 is arranged on one side, facing the mounting port 11, of the fixing part 2, and the keys 32 are arranged on one side, facing the mounting port 11, of the FPC board at intervals;

pressing portion, including key cap 41, touch-sensitive material 42 and bent plate 43 according to the splenium, touch-sensitive material 42 quantity sets up with button 32 quantity is the same, touch-sensitive material first end 421 locates button 32 and deviates from FPC soft board 31 one end, key cap 41 quantity sets up with button 32 quantity is the same, key cap 41 one side sets up in installing port 11, touch-sensitive material second end 422 sets up in key cap 41 towards button 32 one side, bent plate 43 is elastic material spare, bent plate 43 sets up between touch-sensitive material first end 421 and the second end, touch-sensitive material 42 sets up along the crooked pitch arc direction interval of bent plate 43, and is a plurality of touch-sensitive material first end 421 and second end correspond respectively and contradict button 32 and deviate from FPC soft board 31 one end and key cap 11 one end is deviated from to keycap installing port 41.

In this embodiment, the stereo set includes drain pan 1, is equipped with power cord, function key and control switch on the drain pan 1, and the power cord is used for connecting the power, and control switch is used for controlling the stereo set switch-on and switch-off, and the function key is used for controlling the function of stereo set. In order to press the key 32 inside the housing, the bottom housing 1 has a mounting opening 11 formed at one side thereof, and the mounting opening 11 is used for mounting the key cap 41 from inside the housing to outside the housing, so that the outside of the housing is connected to the outside of the housing through the key cap 41. Meanwhile, in order to fix the component module at the mounting port 11, the fixing portion 2 is disposed in the inner space of the housing toward the mounting port 11, the fixing portion 2 is detachably connected to the housing, and the fixing portion 2 is preferably disposed toward the mounting port 11 in one side of the length direction, so that the fixing portion 2 has a larger mounting area toward the mounting port 11.

In order to match the shape of the casing and improve the experience when the key 32 is pressed, the type of the circuit board adopts the FPC soft board 31, and the FPC soft board 31 is bent towards one side of the mounting opening 11 according to the shape of the fixing part 2 by utilizing the soft changeability characteristic and the bending characteristic of the FPC soft board 31 and then is arranged on one side of the fixing part 2 towards the mounting opening 11. The key 32 is used as a main implementation component for controlling the sound function, one end of the key 32, which is provided with a wiring pin, is arranged on one side of the FPC soft board 31, which faces the mounting port 11, and the key 32 is fixedly connected with the FPC soft board 31; in order to control more functions of the audio, the number of the keys 32 is two or more, and the specific number is not limited, and the plurality of keys 32 are arranged at intervals along the length direction of the FPC flexible printed circuit 31, so that the plurality of keys 32 have sufficient intervals.

In order to press button 32 in the casing from drain pan 1 outward, button 32 is equipped with conflict piece 42 towards installing port 11 one side, conflict piece first end 421 is connected with button 32, conflict piece second end 422 sets up in installing port 11, when pressing button 32, can be through pressing conflict piece 42 in installing port 11, the button 32 that conflict piece 42 corresponds contradicts, thereby realize pressing button 32 in the casing from the shell body, in order to press all buttons 32, conflict piece 42's quantity has a plurality ofly, a plurality ofly support button 42 one-to-one and set up button 32 on FPC soft board 31, in order to guarantee that every button 32 can all press. Secondly, in order to distinguish the functions corresponding to the respective contact blocks 42, the second end 422 of each contact block is provided with a key cap 41, one side of the key cap 41, which is far away from the contact block 42, is provided with a raised mark corresponding to the key 32 corresponding to the contact block 42, so as to be convenient for reading and identifying, the number of the key caps 41 is the same as that of the contact blocks 42, and it is ensured that each contact block 42 has the key cap 41. Simultaneously, in order to separate between keycap 41 and keycap 41, avoid two adjacent keycaps 41 to extrude, cause the keycap 41 not hard up or the linkage appears when pressing, set up the crooked board of elastic material spare between the first end of conflict piece 42 and second end, keep apart between the conflict piece 42, have better fixed to the first end 421 of conflict piece simultaneously, avoided the offset of first end.

In this embodiment, by forming the mounting opening 11 on the bottom case 1, the fixing member is disposed at the orthographic projection of the mounting opening 11 in the bottom case, the FPC flexible board 31 is disposed on one side of the fixing member facing the mounting opening 11, the plurality of keys 32 are disposed on the FPC flexible board 31 at intervals, the first ends of the abutting blocks 42 are disposed at the ends of the keys 32 away from the FPC flexible board 31 in a one-to-one correspondence manner, and the second ends of the abutting blocks 42 are disposed at the mounting opening 11, respectively, so that different abutting blocks 42 can be pressed to different keys 32 in the case by pressing the case outside; meanwhile, the bent plate 43 is arranged between the first end 421 and the second end of the touch block, the plurality of keycaps 41 are respectively arranged on the second ends of the touch block 42, and the touch block 42 has a gap with the adjacent touch block 42 through the bent plate 43, so that the gap between the two adjacent keycaps 41 is driven, and mutual extrusion caused by the fact that the two adjacent keycaps 41 are compacted is avoided; secondly, because the bent plate 43 is an elastic material member and has a soft characteristic, and the keycap 41 to the key 32 are compact, the moving distance is small when the key 32 is pressed, thereby avoiding the error touch caused by the movement of the adjacent key 32 when the key 32 is pressed, and improving the use experience.

Further, referring to fig. 4 and fig. 7, in another embodiment of the structure of the key 32 of the present application, the key cap 41 includes a key cap body 411 and a position-limiting strip 412, a groove 413 is disposed on one side of the key cap body 411 facing the contact block 42, the second end 422 of the contact block is disposed in the groove 413, the position-limiting strip 412 is disposed at an edge of the groove 413, and the position-limiting strip 412 of each contact block 42 abuts against an inner wall of the inner space of the housing at the mounting opening 11. The size of the shape of the second end 422 of the contact block is matched with that of the groove 413, and the depth of the groove body from the groove bottom to the groove top of the groove 413 is larger than the protruding height of the second end 422 of the contact block on the bent plate 43.

In order to reliably connect the contact element with the key cap body 411, the key cap body 411 is provided with a groove 413 towards one side of the key 32, the size and the shape of the groove 413 are matched with the contact block 42, the depth of the groove 413 from the bottom to the top of the groove 413 is preferably greater than the protrusion distance of the contact block 42 from the bent plate 43 towards one side of the mounting opening 11, and after the second end 422 of the contact block is inserted into the groove 413, the connection strength between the contact block 42 and the key cap body 411 is increased. Secondly, in order to locate keycap 41 card in installing port 11, avoid keycap 41 to fall out of bottom case 1 along with rocking, set up spacing 412 in keycap body 411 recess 413 edge both sides, the size of a dimension button 32 cap of this spacing 412 sets up in installing port 11 back apart from the distance of installing port 11 both sides and sets for, spacing 412 is accomplished and is set up behind keycap body 411, spacing 412 can block installing port 11, thereby restrict keycap 41 from the casing in the motion outside the casing, avoided the casing to drop under the effect that receives self weight.

Alternatively, referring to fig. 7 and 8, the plurality of key caps 41 are arranged in the mounting opening 11 in a first arc-shaped array, and the first arc-shaped radius is the same as that of the mounting opening 11 on the bottom shell 1;

the curved arc direction of bent plate 43 is circular-arc of second, circular-arc radius of second is the same with the circular-arc radius of installing port 11 on drain pan 1 and sets up, bent plate 43 sets up with the laminating of spacing 412 of key cap 41.

The circular arcs formed by arranging the plurality of keycaps 41 are arranged behind the bottom shell 1 and have the same distance in a protruding mode, the high two sides in the middle of the keycaps 41 in one arrangement are prevented from being low, and therefore the problem of compactness is affected, the first circular arc radius formed by the plurality of keycaps 41 is preferably arranged in the same mode as the circular radius of the bottom shell 1, and the plurality of keycaps 41 are arranged in the installation opening 11 after being formed into the first circular arcs and have the same height as the excircle of the bottom shell 1 and are compact in structure. Secondly for the curved plate 43 and the first circular arc-shaped arranged keycap 41 joint, avoid the contact block 42 to be arranged behind the curved plate 43 and can not be installed, the curved arc direction of the curved plate 43 is second circular arc, the second circular arc is preferably the same radius as the bottom shell 1, so that the second circular arc-shaped curved plate 43 can be arranged with the first circular arc-shaped arranged keycap 41 joint, thereby the keycap 41 and the key 32 are more compact, the first circular arc-shaped arranged keycap 41 and the second circular arc-shaped curved plate 43 are jointed, the distance between the curved plate 43 and the keycap 41 is the same, and the contact block 42 is not easy to extrude to drive the adjacent key 32 to move to cause misjudgment when the key 32 is capped.

Optionally, in fig. 8, the first end 421 of the contact block is a circular truncated cone, and the surface of the circular truncated cone of the first end 421 of the contact block abuts against one end of the key 32, which is away from the FPC soft board 31. In order to avoid the contact block 42 from contacting other areas of the key 32 when being pressed by the keycap 41, the shape of the first end 421 of the contact block is preferably set to be a circular truncated cone, the size of the end of the contact block 42 which is arranged in a circular truncated cone shape is preferably set to be equal to the size of the pressing part of the key 32, and the contact block is prevented from contacting other areas when being pressed too much, so that the failure is caused; meanwhile, the center of the circular truncated cone is preferably aligned with the central area of the key 32, so that the contact part has larger contact area when being pressed.

Further, referring to fig. 5 and 6, in another embodiment of the structure of the key 32 of the present application, the component module further includes steel plates 33, the number of the steel plates 33 is the same as that of the key 32, the steel plates 33 are disposed in an orthographic projection area of the key 32 on a side of the FPC flexible printed circuit 31 away from the key 32, the area of the steel plates 33 is larger than that of the orthographic projection area, and the steel plates 33 are fixedly connected with the FPC flexible printed circuit 31. The fixing portion 2 comprises a fixing block 21 fixedly connected with the steel plate 33 and fixing protrusions 22 coplanar with the fixing block 21, each fixing block 21 comprises a plurality of fixing protrusions 22, and the fixing protrusions 22 are arranged on one side, facing the mounting opening 11, of the fixing block 21. The steel sheet 33 is provided with fixed passage with FPC soft board 31, fixed passage runs through FPC soft board 31 and steel sheet 33, fixed passage has many, fixed bulge 22 passes FPC soft board 31 and steel sheet 33's fixed passage is with fixed steel sheet 33 and FPC soft board 31.

In order to be fixed in FPC soft board 31 with button 32 and other electronic components, avoid FPC soft board 31 too soft to cause button 32 and components and parts to drop, FPC soft board 31 deviates from button one side and sets up steel sheet 33, steel sheet 33 is located FPC soft board 31 and the relative one side of components and parts orthographic projection, and the area of steel sheet 33 is greater than the components and parts plane of projection of setting on FPC soft board 31, thereby avoid electronic components just to cover and cause and to drop easily at the rigid edge, the quantity of steel sheet 33 is preferred the same with button 32 quantity, set up respectively in the bending at button 32 place.

In order to fix the steel plate 33 and the FPC soft board 31 on the fixing part 2, the fixing part 2 comprises a fixing block 21 and a fixing protrusion 22, the fixing protrusion 22 is arranged on one side, facing the mounting opening 11, of the fixing block 21, the number of the fixing protrusions 22 is preferably twice that of the keys 32, and every two fixing protrusions are arranged at the mounting position of the steel plate 33 corresponding to the fixing block 21 at intervals, so that the fixing of the fixing steel plate 33 and the FPC soft board 31 is more stable; be provided with fixed passage after steel sheet 33 and the laminating of FPC soft board 31, fixed passage quantity is the same with fixed bulge 22 quantity, fixed bulge 22 and fixed passage's position adaptation, size adaptation for steel sheet 33 and FPC soft board 31 can be fixed in on the fixed block 21 through fixed bulge 22, thereby it is fixed through the mounting to have reduced needs, make the structure compacter.

Further, referring to fig. 1 and fig. 3, in this application button 32 structure another embodiment, drain pan 1 includes drain pan body 12 and drain pan limiting plate 13, drain pan limiting plate 13 extends to mounting port 11 middle part parallel from drain pan body 12 of mounting port 11 both sides, drain pan body 12 in the inner wall of mounting port 11 department with drain pan limiting plate 13 forms the fixed mounting position jointly, fixed part 2 sets up in the fixed mounting position. The fixing part 2 further comprises a fixing body 23, one side of the fixing block 21, which is far away from the fixing protrusion 22, is arranged in the fixing body 23, the fixing blocks 21 are arranged along the extending direction of the fixing body 23, the fixing body 23 is provided with a first connecting hole which penetrates through the fixing body, and the first connecting hole is arranged on one side of the fixing body, which faces the bottom shell body 12; the bottom shell 1 further comprises a support 14, the support 14 is arranged in the fixed mounting position, the support 14 is provided with a second connecting hole, and the first connecting hole is matched with the second connecting hole in position, so that the fixing block 21 is connected with the support 14.

In order to be fixed in drain pan 1 with fixed block 21, avoid fixed block 21 unable fixed, drain pan body 12 sets up the limiting plate towards 11 both sides of installing port, and the size and the shape of limiting plate do not do specifically limit, can realize spacing to fixed block 21 can, the fixed mounting position is constituteed to installing port 11 one side to limiting plate and drain pan body 12 orientation, sets up in the fixed mounting position when fixed block 21, and fixed block 21 both ends are contradicted with fixed block 21 to fixed block 21's stability has been improved. Secondly, in order to let fixed block 21 more firm, first connecting hole has been seted up to fixed block 21, and first connecting hole runs through fixed block 21 body, in order to let fixed block 21 installation more stable, first connecting hole quantity is preferred two, and the interval sets up. For with fixed block 21 adaptation, still be equipped with the support 14 of position adaptation on the drain pan body 12, quantity is the same with first connecting hole quantity on the support 14, and establishes the second connecting hole that is used for connecting on the support 14, and the support 14 sets up in the installation position to be convenient for fixed block 21 connects through first connecting hole one second connecting hole, thereby strengthens the fixed connection of fixed block 21.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims (10)

1. A key structure, comprising:

the bottom shell is provided with a mounting port which is communicated with the inner space and the outer space of the shell on one side;

the fixing part is arranged in the inner space of the shell and close to the mounting opening;

the component module comprises an FPC (flexible printed circuit) soft board and at least two keys, wherein the FPC soft board is arranged on one side of the fixing part, which faces the mounting opening;

pressing the splenium, including key cap, contact block and bent plate according to the splenium, the same setting of contact block quantity and button quantity, the first end of contact block is located the button and is deviated from FPC soft board one end, key cap quantity sets up with button quantity is the same, key cap one side sets up in the installing port, the contact block second end sets up in key cap towards button one side, the bent plate is elastic material spare, the bent plate sets up between first end of contact block and second end, the contact block sets up along the crooked pitch arc direction interval of bent plate, and is a plurality of the first end of contact block and second end correspond respectively that the conflict button deviates from FPC soft board one end and key cap and deviates from installing port one end.

2. The key structure of claim 1, wherein the key cap comprises a key cap body and a position-limiting strip, the key cap body is provided with a groove on a side facing the contact block, the second end of the contact block is disposed in the groove, the position-limiting strip is disposed on an edge of the groove, and the position-limiting strip of each contact block abuts against an inner wall of the inner space of the housing at the mounting opening.

3. The key structure of claim 2 wherein said second end of said contact block is sized and shaped to fit into a recess, said recess having a depth from a bottom of said recess to a top of said recess that is greater than a height of said second end of said contact block protruding above said curved plate.

4. The key structure of claim 2, wherein the plurality of key caps are disposed in the mounting opening in a first circular arc arrangement having a first circular arc radius disposed the same as a circular arc radius of the mounting opening in the bottom housing;

the crooked pitch arc direction of bent plate is that the second is circular-arc, the circular-arc radius of second circular-arc radius is the same with the circular-arc radius of installing port on the drain pan sets up, the bent plate sets up with the spacing laminating of key cap.

5. The key structure of claim 1, wherein the first end of the contact block is disposed in a truncated cone shape, and the surface of the truncated cone shape at the first end of the contact block abuts against the end of the key away from the FPC flexible printed circuit.

6. The key structure of claim 1, wherein the component module further comprises steel plates, the number of the steel plates is the same as that of the keys, the steel plates are arranged in an orthographic projection area of the keys on one side, away from the keys, of the FPC soft board, the area of the steel plates is larger than that of the orthographic projection area, and the steel plates are fixedly connected with the FPC soft board.

7. The key structure of claim 6, wherein said fixing portion comprises a fixing block fixedly connected to said steel plate and fixing protrusions disposed coplanar with said fixing block, each of said fixing blocks comprises a plurality of fixing protrusions, and a plurality of said fixing protrusions are disposed on a side of said fixing block facing said mounting opening.

8. The key structure of claim 7, wherein the steel plate and the FPC flexible printed circuit board are provided with a plurality of fixing passages, the fixing passages penetrate through the FPC flexible printed circuit board and the steel plate, and the fixing protrusions penetrate through the fixing passages of the FPC flexible printed circuit board and the steel plate to fix the steel plate and the FPC flexible printed circuit board.

9. The key structure of claim 8, wherein the bottom casing includes a bottom casing body and bottom casing limiting plates, the bottom casing limiting plates extend from the bottom casing body at two sides of the mounting opening to the middle of the mounting opening in parallel, the inner wall of the bottom casing body at the mounting opening and the bottom casing limiting plates form a fixed mounting position, and the fixed portion is disposed in the fixed mounting position.

10. The key structure of claim 9, wherein the fixing portion further comprises a fixing body, the fixing block is disposed in the fixing body on a side away from the fixing protrusion, the fixing blocks are arranged along an extending direction of the fixing body, the fixing body is provided with a first connecting hole penetrating through the fixing body, and the first connecting hole is disposed on a side of the fixing body facing the bottom case body;

the bottom shell further comprises a support, the support is arranged in the fixed mounting position, the support is provided with a second connecting hole, and the first connecting hole is matched with the second connecting hole in position, so that the fixing block is connected with the support.

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