CN216624059U - Key assembly and remote controller with same - Google Patents

Abstract

The utility model provides a key assembly and a remote controller with the same. Wherein, the button subassembly includes: the key base comprises a key base body and a plurality of first silica gel keys arranged on the key base body; the operation keys comprise an operation body and a plurality of keycaps, the plurality of keycaps and the plurality of first silica gel keys are arranged in a one-to-one correspondence manner, and each keycap is sleeved on the corresponding first silica gel key; the operation body is provided with a supporting area and a mounting area, the mounting area is arranged around the supporting area, the supporting area is positioned in the middle of the operation body, and the plurality of keycaps are arranged on the mounting area and are arranged around the circumference of the supporting area at intervals; and a concave part is arranged between two adjacent keycaps and/or between the keycap and the support area. The utility model effectively solves the problem that the normal use of the keys is influenced because linkage easily exists among a plurality of keys in the prior art.

Description

Key assembly and remote controller with same

Technical Field

The utility model relates to the technical field of key structures, in particular to a key assembly and a remote controller with the same.

Background

At present, a key assembly formed by combining a Plastic key and a conductive adhesive key is a common key form of an air conditioner remote controller, the common air conditioner remote controller key can be divided into a single key and a connected key according to the structural form, and can be divided into a P + R key and a silica gel key according to the materials and the processing technology, wherein P is a first letter of Plastic English, and R is a first letter of Rubber English; the P + R structure is a key structure formed by combining a plastic key and a conductive adhesive key, wherein the key material is plastic and the conductive adhesive key material is rubber.

However, in the prior art, when a user presses a key, the adjacent keys are linked, which not only affects the hand feeling of the user, but also causes the key to malfunction or fail.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a key assembly and a remote controller with the same, and aims to solve the problem that linkage is easy to exist among a plurality of keys to influence the normal use of the keys in the prior art.

In order to achieve the above object, according to one aspect of the present invention, there is provided a key assembly including: the key base comprises a key base body and a plurality of first silica gel keys arranged on the key base body; the operation keys comprise an operation body and a plurality of keycaps, the plurality of keycaps and the plurality of first silica gel keys are arranged in a one-to-one correspondence manner, and each keycap is sleeved on the corresponding first silica gel key; the operation body is provided with a supporting area and a mounting area, the mounting area is arranged around the supporting area, the supporting area is positioned in the middle of the operation body, and the plurality of keycaps are arranged on the mounting area and are arranged around the circumference of the supporting area at intervals; and a concave part is arranged between two adjacent keycaps and/or between the keycap and the support area.

Further, the support region protrudes with respect to the mounting region toward a side away from the keycap.

Further, concaveThe part is a groove, the groove depth H of the groove₁Satisfies the following conditions: h is not less than 1.5mm₁Less than or equal to 2.0 mm; and/or the groove width c of the groove satisfies: c is more than or equal to 0.8mm and less than or equal to 1.2 mm.

Further, the recess comprises a first sub-recess, and the first sub-recess is arranged between two adjacent keycaps; wherein, the number of the first sub-concave parts is one; alternatively, the first sub-recess may be plural, and the plural first sub-recesses may be provided at intervals around the circumferential direction of the support region.

Further, the cross section of the operation body is a circular surface, and the first sub-recess extends in a radial direction of the circular surface.

Further, in the adjacent group of keycaps, the first sub-concave part between the two keycaps is the same as the distance between each keycap.

Further, the concave part also comprises a second sub-concave part, the second sub-concave part is arranged between the keycap and the support area, the second sub-concave part is an annular groove, and the annular groove is arranged around the support area; or, the second sub-concave part comprises a plurality of sections of arc-shaped grooves, the plurality of sections of arc-shaped grooves are arranged in one-to-one correspondence with the plurality of keycaps, and the plurality of sections of arc-shaped grooves are arranged at intervals along the circumferential direction of the supporting area.

Further, the first sub-recess communicates with the second sub-recess.

Furthermore, the keycap comprises a first plate section, a second plate section, a third plate section and a fourth plate section which are connected end to end, the first plate section and the third plate section are arranged oppositely, and the second plate section and the fourth plate section are arranged oppositely; along the radial of operation body, first plate section is located between second sub-concave part and the third plate section, and first plate section is the arc, and the center pin of arc and the coaxial setting of the center pin of second sub-concave part.

Further, the thickness t of the operating body satisfies: t is more than or equal to 2.2mm and less than or equal to 2.8 mm; and/or the outer diameter D of the operating body satisfies: d is more than or equal to 32mm and less than or equal to 37 mm.

Further, the height H of the operation key₂Satisfies the following conditions: h is not less than 6mm₂≤8mm。

Furthermore, the key seat and the operation keys are integrally injection-molded.

According to another aspect of the present invention, a remote controller is provided, which includes a circuit board and a key assembly, wherein a plurality of first silicone keys of the key assembly are disposed corresponding to a plurality of contacts on the circuit board; wherein, the button subassembly is above-mentioned button subassembly.

By applying the technical scheme, the operation body is provided with the supporting area and the mounting area, the mounting area is arranged around the supporting area, the supporting area is positioned in the middle of the operation body, the plurality of keycaps are arranged on the mounting area and are arranged around the circumferential direction of the supporting area at intervals, and the concave parts are arranged between two adjacent keycaps and/or between the keycap and the supporting area, so that the thickness of the mounting area between the two adjacent keycaps is reduced; and/or, reduced the thickness that lies in the part between key cap and the support area on the operation body, reduced the linkage nature between a plurality of first silica gel buttons to there is the linkage easily among a plurality of buttons and influence the problem of button normal use among the solution prior art, the probability of taking place the linkage between a plurality of first silica gel buttons on the reduction key subassembly.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

fig. 1 is a schematic perspective view of an operation key according to a second embodiment of the key assembly of the present invention; and

fig. 2 shows a front view of the operating button in fig. 1;

fig. 3 shows a side view of the operating button in fig. 1;

fig. 4 is a schematic perspective view of a key base of the key assembly in fig. 1;

fig. 5 is a perspective view of the key base of fig. 4 at another angle;

fig. 6 shows an exploded view of a first embodiment of the remote control according to the utility model;

FIG. 7 shows a front view of the circuit board of the remote control of FIG. 6;

fig. 8 is a schematic perspective view of a second embodiment of a key assembly according to the present invention.

Wherein the figures include the following reference numerals:

10. a circuit board; 11. a contact; 20. a key base; 21. a key base body; 22. a first silica gel key; 23. a second silica gel key; 24. a support portion; 30. operating a key; 31. operating the body; 311. a support region; 312. an installation area; 32. a keycap; 321. a first plate section; 322. a second plate section; 323. a third plate section; 324. a fourth plate segment; 40. a recess; 41. a first sub-recess; 42. a second sub-recess; 60. a decorative ring; 61. and clamping the concave part.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present invention, unless stated to the contrary, use of the directional terms "upper and lower" are generally directed to the orientation shown in the drawings, or to the vertical, or gravitational direction; likewise, for ease of understanding and description, "left and right" are generally to the left and right as shown in the drawings; "inner and outer" refer to the inner and outer relative to the profile of the respective member itself, but the above directional terms are not intended to limit the present invention.

In order to solve the problem that linkage easily exists among a plurality of keys in the prior art and influences the normal use of the keys, the application provides a key assembly and a remote controller with the same.

Example one

As shown in fig. 1 to 5, the key assembly includes a key base 20 and operation keys 30. The key base 20 includes a key base body 21 and a plurality of first silicone keys 22 disposed on the key base body 21. The operation key 30 includes an operation body 31 and a plurality of key caps 32, the plurality of key caps 32 are disposed corresponding to the plurality of first silica gel keys 22 one by one, and each key cap 32 is sleeved on the corresponding first silica gel key 22. The operation body 31 has a support region 311 and a mounting region 312, the mounting region 312 is disposed around the support region 311, the support region 311 is located at the middle of the operation body 31, and the plurality of key caps 32 are disposed on the mounting region 312 and are disposed at intervals around the circumference of the support region 311. Wherein, the concave part 40 is arranged between two adjacent keycaps 32 and between the keycap 32 and the support area 311.

By applying the technical scheme of the embodiment, the operation body 31 has a support region 311 and a mounting region 312, the mounting region 312 is arranged around the support region 311, the support region 311 is located in the middle of the operation body 31, the plurality of keycaps 32 are arranged on the mounting region 312 and are arranged around the support region 311 at intervals in the circumferential direction, and a concave portion is arranged between two adjacent keycaps 32 and/or between the keycap 32 and the support region 311, so that the thickness of the mounting region 312 between two adjacent keycaps 32 is reduced; and/or, the thickness of the part, which is positioned between the keycap 32 and the support area 311, of the operation body 31 is reduced, and the linkage property among the first silica gel keys 22 is reduced, so that the problem that the normal use of the keys is influenced due to the linkage among the keys in the prior art is solved, and the probability of linkage among the first silica gel keys on the key assembly is reduced.

It should be noted that the position of the concave portion 40 is not limited to this, and can be adjusted according to the working condition and the use requirement. In other embodiments not shown in the drawings, the recess is only provided between two adjacent key caps. Specifically, the thickness of the installation area between two adjacent keycaps is reduced due to the arrangement of the concave portion, linkage between the first silica gel keys is reduced, the problem that linkage is easy to exist between the keys in the prior art, so that normal use of the keys is affected is solved, and the probability of linkage between the first silica gel keys on the key assembly is reduced.

In other embodiments not shown in the drawings, the recess is provided only between the keycap and the support region. Specifically, the concave part is arranged to reduce the thickness of the part, located between the keycap and the support area, of the operation body, linkage between the first silica gel keys is reduced, the problem that linkage is prone to occurring among the keys in the prior art and normal use of the keys is affected is solved, and the probability of linkage occurring among the first silica gel keys on the key assembly is reduced.

In the present embodiment, the support region 311 protrudes toward a side away from the key cap 32 with respect to the mounting region 312. Thus, the arrangement enables the operation body 31 to be in a 'convex-concave type' disc-shaped structure, so that on one hand, the touch feeling of a user is improved; on the other hand, it is ensured that the user can press the first silicone key 22 through the mounting region 312 of the operation body 31, and the operation sensitivity and reliability of the key assembly are improved.

As shown in fig. 1, 2 and 4, the key base 20 further includes a supporting portion 24, and the supporting portion 24 is disposed on the key base body 21 and corresponds to the supporting area 311. Thus, the above arrangement of the supporting portion 24 can avoid the remote controller from being out of order due to the pressing interference between the first silicone keys 22.

Optionally, the recess 40 is a groove having a groove depth H₁Satisfies the following conditions: h is not less than 1.5mm₁Less than or equal to 2.0 mm; and/or the groove width c of the groove satisfies: c is more than or equal to 0.8mm and less than or equal to 1.2 mm. Thus, the structure of the recess 40 is simplified, and the processing cost of the recess 40 is reduced. Meanwhile, on the premise that the key assembly can avoid linkage between the first silica gel keys 22, the structural strength of the operation key 30 is improved by the arrangement, and the service life of the key assembly is prolonged.

In the present embodiment, the groove depth H of the groove₁Is 1.7mm, and the groove width c of the groove is 1.0mm, so that the groove can be processed more easily and conveniently, and the processing difficulty is reduced.

Note that the groove depth H of the groove₁The value of (2) is not limited to the above value, and can be adjusted according to the working condition and the use requirement. Optionally, the groove depth H of the groove₁Is 1.5mm, or 1.55mm, or 1.60mm, or 1.75mm, or 1.80mm, or 1.85mm, or 1.90mm, or 1.95mm, or 2.00 mm.

It should be noted that the value of the groove width c of the groove is not limited to this, and can be adjusted according to the working condition and the use requirement. Optionally, the groove width c of the groove is 0.8mm, or 0.85mm, or 0.90mm, or 0.95mm, or 1.05mm, or 1.10mm, or 1.15mm, or 1.20 mm.

As shown in fig. 1 and 2, the recess 40 includes a first sub-recess 41, and the first sub-recess 41 is disposed between two adjacent keycaps 32. Wherein, there is one first sub-recess 41; alternatively, the first sub-recess 41 is plural, and the plural first sub-recesses 41 are provided at intervals around the circumferential direction of the support region 311. In this way, the first sub-concave portion 41 is disposed between two adjacent keycaps 32 to avoid the linkage between two adjacent first silicone keys 22. Meanwhile, the number of the first sub-concave parts 41 is more flexibly selected by the arrangement, so that different use requirements and working conditions are met, and the processing flexibility of workers is improved.

In the present embodiment, there are four first silicone keys 22, four keycaps 32, and a first sub-recess 41 is disposed between every two adjacent keycaps 32.

Optionally, one or more first sub-recesses 41 are disposed between two adjacent keycaps 32.

Optionally, there are four first silicone keys 22 and four keycaps 32, and two, or three, or four, or more first sub-recesses 41 are disposed between every two adjacent keycaps 32.

In the present embodiment, the cross section of the operation body 31 is a circular surface, and the first sub recess 41 extends in a radial direction of the circular surface. Thus, the processing for arranging the first sub-concave part 41 is easier and simpler, and the processing difficulty is reduced.

In the present embodiment, the first sub-recess 41 is a straight groove extending in the radial direction of the circular surface.

Note that the cross section of the operation body 31 is perpendicular to the height direction of the operation body 31.

In the present embodiment, in the adjacent group of the key caps 32, the first sub-concave portion 41 located between the two key caps 32 is the same as the distance between the respective key caps 32.

As shown in fig. 1 and 2, the recess 40 further includes a second sub-recess 42, the second sub-recess 42 being disposed between the key cap 32 and the support region 311, the second sub-recess 42 being an annular groove disposed around the support region 311; alternatively, the second sub-recessed portion 42 includes a plurality of segments of arc-shaped grooves, which are provided in one-to-one correspondence with the plurality of key caps 32, and which are provided at intervals along the circumferential direction of the support region 311. In this way, the second sub-concave portion 42 is disposed between the key cap 32 and the supporting region 311 to partition the supporting region 311, and when the user touches and presses the supporting region 311, no dome signal (the effective key positions are all corresponding to the first silicone key 22) is transmitted to the circuit board 10, thereby realizing false triggering prevention. Meanwhile, the number and the structure of the second sub-concave parts 42 are more flexible due to the arrangement, so that different use requirements and working conditions are met, and the processing flexibility of workers is improved.

Specifically, when the user presses the middle region (the support region 311) of the operation key 30, the transmission of force slightly dislocates and separates the pressed position of the first silicone key 22, so as to ensure the key function to be effective and avoid the phenomena of key linkage, false triggering signals and the like.

In the present embodiment, the second sub-recess 42 is an annular groove, and the support region 311 is located in the annular groove. Thus, the provision of the annular groove reduces the thickness of the region between the support region 311 and the mounting region 312, thereby preventing false triggering of the key assembly.

In the present embodiment, the first sub recess 41 communicates with the second sub recess 42. Thus, the above arrangement makes the processing of the first sub-recess 41 and the second sub-recess 42 easier and simpler, and reduces the processing cost of the key assembly.

In the present embodiment, the groove widths of the first sub-concave portion 41 and the second sub-concave portion 42 are the same, so that the processing of the two portions is easier and simpler, and the processing difficulty and the processing cost of the two portions are reduced.

As shown in fig. 1 and 2, the key cap 32 includes a first plate section 321, a second plate section 322, a third plate section 323, and a fourth plate section 324 connected end to end, the first plate section 321 is disposed opposite to the third plate section 323, and the second plate section 322 is disposed opposite to the fourth plate section 324. In the radial direction of the operation body 31, the first plate segment 321 is located between the second sub-recess 42 and the third plate segment 323, the first plate segment 321 is an arc-shaped plate, and the central axis of the arc-shaped plate is coaxial with the central axis of the second sub-recess 42. Thus, the distance between the first plate section 321 and the second sub-concave portion 42 is consistent everywhere, and the false triggering prevention effect of the key assembly is further improved.

Optionally, the thickness t of the operating body 31 satisfies: t is more than or equal to 2.2mm and less than or equal to 2.8 mm; and/or the outer diameter D of the operating body 31 satisfies: d is more than or equal to 32mm and less than or equal to 37 mm. Like this, above-mentioned setting makes the structure of operation body 31 simpler, and easy processing, realization have reduced button subassembly's processing cost.

In this embodiment, the thickness t of the operation body 31 is 2.50mm, so that the operation body 31 can be processed more easily and conveniently, and the processing difficulty is reduced.

It should be noted that the thickness t of the operation body 31 is not limited to this, and can be adjusted according to the working condition and the use requirement. Optionally, the thickness t of the operating body 31 is 2.2mm, or 2.4mm, or 2.6mm, or 2.8 mm.

In this embodiment, the outer diameter D of the operation body 31 is 35.70mm, so that the operation body 31 can be processed more easily and conveniently, and the processing difficulty is reduced.

It should be noted that, the outer diameter D of the operation body 31 is not limited to this, and can be adjusted according to the working condition and the use requirement. Optionally, the outer diameter D of the operating body 31 is 32.5mm, or 34mm, or 35mm, or 36mm, or 36.5mm, or 37 mm.

Alternatively, the height H of the operation keys 30₂Satisfies the following conditions: h is not less than 6mm₂Less than or equal to 8 mm. Thus, the arrangement makes the structure of the operation key 30 simpler, and reduces the processing cost and the processing difficulty of the operation key 30.

In the present embodiment, the height H of the operation key 30₂Is 7.2 mm.

The height H of the operation key 30₂The value is not limited to the above value and can be adjusted according to the working condition and the use requirement. Alternatively, the height H of the operation keys 30₂Is 6.5mm, or 6.8mm, or 7.0mm, or 7.5mm, or 7.8mm, or 8.0 mm.

Optionally, the height H of the key cap 32 satisfies: h is more than or equal to 3.5mm and less than or equal to 4.5 mm. Thus, the arrangement makes the structure of the key cap 32 simpler, and reduces the processing cost and the processing difficulty of the operation key 30.

In this embodiment, the height H of the key cap 32 is 4.2 mm.

It should be noted that, the height H of the key cap 32 is not limited thereto, and can be adjusted according to the working condition and the use requirement. Optionally, the height H of the key cap 32 is 3.8mm, or 4.0mm, or 4.5 mm.

Optionally, the operation keys 30 may be painted or metalized, which not only has a price advantage, but also increases the aesthetic feeling of the user's vision in appearance, and improves the operation feeling of the user.

In the present embodiment, the first silicone key 22 is a conductive silicone key. In the process that the user pressed the key assembly, the automatic resilience of the first silica gel keys 22 was realized through the above arrangement, so that the force transmission among a plurality of first silica gel keys 22 was reduced, the resilience of the first silica gel keys 22 was improved, and the key linkage phenomenon was avoided.

As shown in fig. 4 and 5, the key base 20 further includes a second silicone key 23 disposed on the key base body 21, the first silicone key 22 is disposed corresponding to the function selection area of the circuit board 10, and the second silicone key 23 is disposed corresponding to the number selection area of the circuit board 10. Like this, above-mentioned setting makes the button subassembly have multiple mode of operation to satisfy user's different user demands, and then promoted user's use experience.

In the present embodiment, the second silicone rubber key 23 is a conductive silicone rubber key.

As shown in fig. 6 and 7, the present application further provides a remote controller, which includes a circuit board 10 and a key assembly, where a plurality of first silicone keys of the key assembly are disposed corresponding to a plurality of contacts 11 on the circuit board 10. Wherein, the button subassembly is above-mentioned button subassembly.

As shown in fig. 6, the remote controller includes a housing and a decoration ring 60, the decoration ring 60 is disposed between the housing and the key assembly, and is used for filling and decorating a gap between the housing and the key assembly, so as to prevent impurities such as dust from entering the accommodating cavity through the gap; on the other hand, the appearance of the remote controller is more beautiful and tidy.

As shown in fig. 6, the bezel 60 has a latching recess 61, and the bezel 60 is latched to the housing through the latching recess 61 to assemble the bezel 60 and the housing.

The application also provides a method for preventing key linkage, which is suitable for the key assembly and comprises the following steps:

acquiring the number of the first silica gel keys pressed on the key assembly according to the number of the contacts pressed on the circuit board;

when the number of the pressed first silica gel keys is larger than or equal to two, obtaining pressing parameters of the first silica gel keys so as to judge whether to trigger corresponding functions according to the pressing parameters; wherein the compression parameters comprise a compression time and/or a compression force.

Specifically, the number of the pressed first silica gel keys can be judged by obtaining the number of the pressed contacts, and when a plurality of first silica gel keys are pressed simultaneously, whether the key assembly triggers a corresponding function can be judged by obtaining pressing parameters of the first silica gel keys. Therefore, on the circuit board, the logic program setting is carried out on the contact which is easy to generate the linkage signal, whether the signal is real or not is automatically identified, the invalid signal is filtered, and the valid signal is transmitted.

In this embodiment, the method for determining whether to trigger the corresponding function according to the pressing parameter includes:

when the pressing time is less than 3s or more than 5s, the function corresponding to the pressed first silica gel key is not triggered;

and when the pressing time is more than or equal to 3s and less than or equal to 5s, triggering a function corresponding to the pressed first silica gel key.

Specifically, when two or more than two first silica gel keys are pressed down simultaneously to trigger the electric signal, the control module of the remote controller performs logic identification according to the pressed time duration. If two first silica gel keys are required to be pressed down simultaneously to trigger correct functions, effective signals can be transmitted when the pressing time is 3-5 s. If two first silica gel keys are mistakenly pressed simultaneously, when the pressing time is less than 3s or more than 5s, the control module of the remote controller automatically identifies the operation as invalid operation, filters signals and does not trigger the function.

In this embodiment, the method for determining whether to trigger the corresponding function according to the pressing parameter includes:

when the pressing force is smaller than a preset pressure value, the function corresponding to the pressed first silica gel key is not triggered;

and when the pressing force is greater than or equal to the preset pressure value, triggering a function corresponding to the pressed first silica gel key.

Specifically, when two or more than two first silica gel keys press the trigger electric signal at the same time, the control module of the remote controller performs logic identification according to the pressing force. If two first silica gel keys are required to be pressed down simultaneously to trigger correct functions, effective signals can be transmitted when the pressing force is larger than or equal to a preset pressure value. If two first silica gel keys are pressed down at the same time by mistake, when the pressing force is smaller than the preset pressure value, the remote controller control module automatically identifies the operation as invalid operation, filters signals and does not trigger the function.

Example two

The key assembly in the second embodiment is different from that in the first embodiment in that: the key bed 20 and the operation keys 30 are connected differently.

As shown in fig. 8, key base 20 and operation keys 30 are integrally injection-molded. Specifically, adopt integral type rubber button structure, through the compliance that rubber itself has and the structural adjustment of rubber button bottom, and then reduce the power transmission between a plurality of first silica gel buttons, avoid taking place button linkage problem.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

the operation body is provided with a supporting area and a mounting area, the mounting area is arranged around the supporting area, the supporting area is located in the middle of the operation body, the keycaps are arranged on the mounting area and are arranged around the supporting area at intervals in the circumferential direction, and a concave part is arranged between every two adjacent keycaps and/or between the keycap and the supporting area, so that the thickness of the mounting area between every two adjacent keycaps is reduced; and/or, reduced the thickness that lies in the part between key cap and the support area on the operation body, reduced the linkage nature between a plurality of first silica gel buttons to there is the linkage easily among a plurality of buttons and influence the problem of button normal use among the solution prior art, the probability of taking place the linkage between a plurality of first silica gel buttons on the reduction key subassembly.

It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (13)

1. A key assembly, comprising:

the key base (20) comprises a key base body (21) and a plurality of first silica gel keys (22) arranged on the key base body (21);

the operation key (30) comprises an operation body (31) and a plurality of keycaps (32), the plurality of keycaps (32) and the plurality of first silica gel keys (22) are arranged in a one-to-one correspondence manner, and each keycap (32) is sleeved on the corresponding first silica gel key (22); the operating body (31) is provided with a supporting region (311) and a mounting region (312), the mounting region (312) is arranged around the supporting region (311), the supporting region (311) is positioned in the middle of the operating body (31), and a plurality of keycaps (32) are arranged on the mounting region (312) and are arranged around the circumference of the supporting region (311) at intervals;

wherein a recess (40) is arranged between two adjacent keycaps (32) and/or between a keycap (32) and the support region (311).

2. A key assembly according to claim 1, wherein the support region (311) projects towards a side remote from the key cap (32) relative to the mounting region (312).

3. The key assembly according to claim 1, wherein the recess (40) is a groove having a groove depth H₁Satisfies the following conditions: h is not less than 1.5mm₁Less than or equal to 2.0 mm; and/or the groove width c of the groove satisfies: c is more than or equal to 0.8mm and less than or equal to 1.2 mm.

4. The key assembly according to claim 1, wherein the recess (40) comprises a first sub-recess (41), the first sub-recess (41) being disposed between two adjacent key caps (32); wherein the number of the first sub-recesses (41) is one; alternatively, the first sub-recess (41) is provided in plurality, and the plurality of first sub-recesses (41) are provided at intervals around the circumferential direction of the support region (311).

5. The key assembly according to claim 4, wherein the operating body (31) has a circular surface in cross section, and the first sub-recess (41) extends in a radial direction of the circular surface.

6. A key assembly according to claim 4, wherein in an adjacent group of said key caps (32), the distance between said first sub-recess (41) between two of said key caps (32) and each of said key caps (32) is the same.

7. The key assembly according to claim 4, wherein the recess (40) further comprises a second sub-recess (42), the second sub-recess (42) being disposed between the key cap (32) and the support region (311), the second sub-recess (42) being an annular groove disposed around the support region (311); or the second sub-concave part (42) comprises a plurality of sections of arc-shaped grooves, the arc-shaped grooves are arranged in one-to-one correspondence with the keycaps (32), and the arc-shaped grooves are arranged at intervals along the circumferential direction of the support region (311).

8. The key assembly according to claim 7, wherein the first sub-recess (41) communicates with the second sub-recess (42).

9. The key assembly of claim 7, wherein the key cap (32) comprises a first plate segment (321), a second plate segment (322), a third plate segment (323), and a fourth plate segment (324) connected end to end, the first plate segment (321) being disposed opposite the third plate segment (323), the second plate segment (322) being disposed opposite the fourth plate segment (324); along the radial direction of the operation body (31), the first plate section (321) is located between the second sub-concave part (42) and the third plate section (323), the first plate section (321) is an arc-shaped plate, and the central axis of the arc-shaped plate and the central axis of the second sub-concave part (42) are coaxially arranged.

10. A key assembly according to claim 1, wherein the thickness t of the operating body (31) satisfies: t is more than or equal to 2.2mm and less than or equal to 2.8 mm; and/or the outer diameter D of the operating body (31) satisfies: d is more than or equal to 32mm and less than or equal to 37 mm.

11. A key assembly according to claim 1, characterized in that the height H of the operating key (30)₂Satisfies the following conditions: h is not less than 6mm₂≤8mm。

12. A key assembly according to claim 1, wherein the key base (20) and the operation keys (30) are integrally injection-molded.

13. A remote controller is characterized by comprising a circuit board (10) and a key assembly, wherein a plurality of first silica gel keys of the key assembly are arranged corresponding to a plurality of contacts (11) on the circuit board (10); wherein the key assembly is the key assembly of any one of claims 1-12.

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