CN111816244B - Key module and electronic device using same - Google Patents
Key module and electronic device using same Download PDFInfo
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- CN111816244B CN111816244B CN202010699358.3A CN202010699358A CN111816244B CN 111816244 B CN111816244 B CN 111816244B CN 202010699358 A CN202010699358 A CN 202010699358A CN 111816244 B CN111816244 B CN 111816244B
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- frame
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- elastic part
- electronic device
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- 239000000463 material Substances 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000001746 injection moulding Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G12—INSTRUMENT DETAILS
- G12B—CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
- G12B9/00—Housing or supporting of instruments or other apparatus
- G12B9/02—Casings; Housings; Cabinets
-
- G—PHYSICS
- G12—INSTRUMENT DETAILS
- G12B—CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
- G12B9/00—Housing or supporting of instruments or other apparatus
- G12B9/02—Casings; Housings; Cabinets
- G12B9/04—Details, e.g. cover
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Abstract
The key module comprises a plurality of keys, a frame and a plurality of connecting parts. The frame is connected with the keys. Each connecting part is connected with the corresponding key and the frame. The frame comprises an upper surface and a plurality of elastic parts, and each elastic part is vertically staggered with the upper surface. Since the elastic portion has elasticity, a vibration frequency does not easily cause friction or collision of the frame with the connected housing along a plane, thereby reducing noise.
Description
Technical Field
The present disclosure relates to a key module and an electronic device using the same, and more particularly, to a key module having an elastic portion and an electronic device using the same.
Background
The electronic device generally includes a key module and a housing, and the key module is disposed in the housing. The key module and the housing are generally in plane contact, when a speaker of the electronic device plays sound, the audio frequency of the sound is transmitted to the key module and the housing, and the contact plane is easy to rub or collide, thereby causing noise. Therefore, it is an endeavor of those skilled in the art to provide a new key module to reduce noise.
Disclosure of Invention
The present invention provides a key module and an electronic device using the same, which are not easy to cause friction or collision between a frame and a connected housing along a plane, thereby reducing noise.
In order to achieve the above object, the present invention provides a key module. The key module comprises a plurality of keys, a frame and a plurality of connecting parts. The frame is connected with the keys. Each connecting part is connected with the corresponding key and the frame. The frame comprises an upper surface and a plurality of elastic parts, and each elastic part is vertically staggered with the upper surface.
Another embodiment of the invention provides an electronic device. The electronic device comprises a shell and a key module. The key module comprises a plurality of keys, a frame and a plurality of connecting parts. The frame is connected with the keys. Each connecting part is connected with the corresponding key and the frame. The frame comprises an upper surface and a plurality of elastic parts, and each elastic part is vertically staggered with the upper surface. The elastic parts are abutted with the shell.
The invention has the beneficial effects that: the key module and the electronic device using the same are not easy to cause the friction or collision between the frame and the connected shell along the plane, thereby reducing the noise.
The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.
Drawings
Fig. 1A is a schematic diagram of an electronic device according to an embodiment of the invention.
Fig. 1B and 1C are partial cross-sectional views of the electronic device of fig. 1A along a direction 1B-1B'.
Fig. 1D is a schematic diagram of the key module of fig. 1A.
FIG. 1E is a front view of the key module of FIG. 1D looking in the-X axis.
FIGS. 2A-2B are partial schematic views of a frame according to various embodiments of the invention.
Fig. 2C is a partial schematic view of a frame according to another embodiment of the invention.
Fig. 3A and 3B are partial cross-sectional views of an electronic device according to another embodiment of the invention.
Fig. 3C is a schematic diagram of the key module of fig. 3A.
Fig. 4A-4B are partial schematic views of a frame according to various embodiments of the invention.
Fig. 4C is a partial schematic view of a frame according to another embodiment of the invention.
Fig. 5 is a partial cross-sectional view of a frame according to another embodiment of the present invention.
Fig. 6 is a partial cross-sectional view of a frame according to another embodiment of the present invention.
Detailed Description
The structural and operational principles of the present invention are described in detail below with reference to the accompanying drawings:
referring to fig. 1A to 1E, fig. 1A is a schematic diagram of an electronic device 100 according to an embodiment of the invention, fig. 1B and 1C are partial sectional views of the electronic device 100 of fig. 1A along a direction 1B-1B', fig. 1D is a schematic diagram of a key module 110 of fig. 1A, and fig. 1E is a front view of the key module 110 of fig. 1D viewed from a direction-X.
As shown in fig. 1A, the electronic device 100 is, for example, a device having a speaker (not shown), such as a telephone, a network communication device, or a speaker device. The electronic device 100 includes at least one key module 110, a housing 120, a circuit board 130 and a key elastic layer 140. The key module 110 is disposed in the housing 120.
As shown in fig. 1B and 1D, the key module 110 includes a plurality of keys 111, a frame 112 and a plurality of connecting portions 113. Each connection portion 113 connects the corresponding key 111 and the frame 112. The frame 112 includes an upper surface 112s1 and a plurality of elastic portions 1121, each elastic portion 1121 is vertically displaced from the upper surface 112s1, for example, at least a part of each elastic portion 1121 is displaced from the upper surface 112s1 along a normal direction N1 of the upper surface 112s1 (or is spaced apart from each other by a distance). Thus, when the key module 110 is assembled with the housing 120, the elastic portion 1121 can be pressed against the housing 120. Since the elastic portion 1121 has elasticity (or flexibility), when the audio of the sound played by the speaker is transmitted to the elastic portion 1121, the audio of the sound does not easily cause friction or collision of the frame 112 and the housing 120 along the XY plane, and thus noise can be reduced.
Although not shown, at least one circuit switch is disposed on the circuit board 130. As shown in fig. 1B, the key elastic layer 140 is disposed between the circuit board 130 and the key module 110. When the key 111 is pressed, the key 111 pushes the key elastic layer 140, so that the key elastic layer 140 is deformed to trigger a corresponding circuit switch of the circuit board 130. The key elastic layer 140 is deformed to store elastic potential energy, so that when the key 111 is released, the key elastic layer 140 releases the elastic potential energy to drive the key 111 to return to the initial position. The key elastic layer 140 is made of rubber, for example.
The illustrated Z-direction is, for example, a normal direction N1 substantially parallel to the upper surface 112s1, and the XY-plane is substantially perpendicular to the Z-direction. The direction of the force applied when the finger presses the key is downward (-Z direction), and the direction of the reaction force applied when the finger presses the key is upward (+ Z direction).
As shown in fig. 1C, the housing 120 has a lower surface 120s. When the key module 110 is assembled with the housing 120, the lower surface 120s of the housing 120 is opposite to the upper surface 112s1 of the frame 112 with a gap h1 therebetween, and the gap h1 can reduce the contact area between the frame body 1122 and the housing 120 and reduce noise. In one embodiment, the lower surface 120s and the upper surface 112s1 are, for example, planar and substantially parallel, such that a substantially equal spacing h1 is maintained between the lower surface 120s and the upper surface 112s1.
As shown in fig. 1C, the frame 112 abuts only the elastic portion 1121 on the lower surface 120s of the housing 120. For example, any elastic portion 1121 of the frame 112 is in point contact or line contact with the lower surface 120s of the housing 120, so that the contact area is substantially equal to or less than 0.05 square centimeter (cm 2), but the embodiment of the invention is not limited thereto. Compared with a planar contact, the point contact or line contact can reduce the friction or collision caused by audio frequency, thereby reducing the noise. As shown in fig. 1C, the elastic portion 1121 has a contact surface 1121s, and the contact surface 1121s may be a plane, a curved surface or a combination thereof, and regardless of the geometry of the contact surface 1121s, the contact surface 1121s of each elastic portion 1121 of the embodiment of the invention is in point contact or line contact with the lower surface 120s.
As shown in fig. 1E, when the elastic portion 1121 is in a free state, the elastic portion 1121 protrudes by a protruding length L1 with respect to the upper surface 112s1. When the key module 110 is assembled with the housing 120, the elastic portion 1121 is deformed by an amount less than the protruding length L1, so that the lower surface 120s of the housing 120 has a gap h1 from the upper surface 112s1 of the frame 112. In the embodiment, the protrusion length L1 is, for example, 0.1 to 0.6 mm, and the interval h1 is, for example, 0.1 to 0.3 mm. In addition, the deformed elastic portion 1121 normally (frequently) provides a pressing force to the housing 120, so that the key module 110 is stably contacted with the housing 120.
As shown in fig. 1B to 1C, in the present embodiment, each elastic portion 1121 protrudes from the upper surface 112s1. The frame 112 further includes a frame body 1122 and at least one first through hole 112r, the frame body 1122 has the upper surface 112s1, and the first through hole 112r penetrates through a sidewall of the frame body 1122 and extends to the upper surface 112s1. Each elastic portion 1121 includes a connection end 1121a and a free end 1121b, wherein the connection end 1121a is connected to the inner side surface 112s2 of the first through hole 112r, and the free end 1121b of each elastic portion 1121 is vertically offset from the upper surface 112s1. In the present embodiment, each of the connection ends 1121a has a relative position between its free end 1121b and the frame body 1122 that can be slightly varied.
In one embodiment, the frame body 1122 and the elastic portion 1121 can be integrally formed by, for example, an injection molding process. However, in another embodiment, the frame body 1122 and the elastic portion 1121 may be combined together after being manufactured separately. In addition, the first through hole 112r and the frame body 1122 can be integrally formed by an injection molding process, for example, but the first through hole 112r can also be formed in the frame body 1122 after the frame body 1122 is completed. For example, the frame 112 and/or the housing 120 are made of plastic material. The materials of the frame 112 and the housing 120 may be the same or different. Even if the frame body 112 and the housing 120 are made of materials with similar hardness, the noise can be reduced by the design of the elastic portion 1121.
In addition, the number of the elastic portions 1121 and/or the arrangement position of the frame body 1122 are not limited in the embodiments of the present invention as long as they can be stably coupled to the housing 120.
Fig. 2A-2B are partial schematic views of a frame 112' according to various embodiments of the invention. The frame 112 of the electronic device 100 can be replaced by a frame 112'. The frame 112 'includes a plurality of elastic portions 1121, a frame body 1122 and at least one first through hole 112r'. The frame 112' has the same or similar technical features as the frame 112, except that the shape of the first through hole 112r ' of the frame 112' is different from the shape of the first through hole 112r of the frame 112. The inner surface of the first through hole 112r or 112r' may include a curved surface, a flat surface, or a combination thereof, wherein the curved surface is a portion of a spherical surface, a portion of a cylindrical surface, a portion of an elliptic spherical surface, a portion of an elliptic cylindrical surface, or various curved surface geometries.
Fig. 2C is a partial schematic view of a frame 112 ″ according to another embodiment of the invention. The frame 112 of the electronic device 100 may be replaced by a frame 112 ". The frame 112 ″ includes a plurality of elastic portions 1121 and a frame body 1122". The frame 112 "has the same or similar technical features as the frame 112, except that the frame 112" may omit the first through hole 112r. In this example, the connection end 1121a of the elastic portion 1121 is connected to the upper surface 112s1.
Referring to fig. 3A to 3C, fig. 3A and 3B are partial cross-sectional views of an electronic device 200 according to another embodiment of the invention, and fig. 3C is a schematic diagram of the key module 210 of fig. 3A. The electronic device 200 is, for example, a device having a speaker (not shown), such as a telephone, a network communication device, or a speaker device. The electronic device 200 includes at least one key module 210 and a housing 120. The key module 210 is disposed in the housing 120.
The key module 210 includes a plurality of keys 111, a frame 212, and a plurality of connecting portions 113. Each connection portion 113 connects the corresponding key 111 and the frame 212. Each elastic portion 2121 is vertically displaced from the upper surface 212s1. Thus, when the key module 210 is assembled with the housing 120, the elastic portion 2121 can be pressed against the housing 120. Since the elastic portion 2121 has elasticity (or flexibility), when the audio frequency of the sound played by the speaker is transmitted to the elastic portion 2121, the elastic portion 2121 deforms substantially along the normal direction N1, so that the audio frequency of the sound does not easily cause the friction or collision between the lower surface 120s and the upper surface 212s1, thereby reducing the noise.
In the present embodiment, the elastic portion 2121 extends along a curve, for example, an arc, and the arc provides elasticity or flexibility for the elastic portion 2121.
The frame 212 includes a frame body 2122, a plurality of elastic portions 2121 and at least one first through hole 212r. The frame body 2122 has an upper surface 212s1. The first through hole 212r penetrates a sidewall of the frame body 2122. Each elastic portion 2121 includes two connecting ends 2121a connected to the inner surface 212s2 of the first through hole 212r. The first through hole 212r is isolated from the upper surface 212s1 by the elastic portion 2121.
In one embodiment, the frame body 2122 and the resilient portion 2121 can be integrally formed by injection molding, for example. However, in another embodiment, the frame body 2122 and the elastic portion 2121 can be fabricated separately and then combined together. In addition, the frame body 2122 and/or the elastic portion 2121 are made of plastic material, for example.
Fig. 4A-4B are partial schematic views of a frame 212' according to various embodiments of the invention. The frame 212 of the electronic device 200 can be replaced by a frame 212'. The frame 212 'includes a plurality of elastic portions 2121, a frame body 2122 and at least one first through hole 212r'. The frame 212' has the same or similar technical features as the frame 212 except that the shape of the first through hole 212r ' of the frame 212' is different from the shape of the first through hole 212r of the frame 212. The inner surface of the first through hole 212r or 212r' may include a curved surface, a flat surface, or a combination thereof, wherein the curved surface is a portion of a spherical surface, a portion of a cylindrical surface, a portion of an ellipsoidal cylindrical surface, or other various curved surface geometries.
Fig. 4C is a partial schematic view of a frame 212 ″ according to another embodiment of the invention. The frame 212 of the electronic device 200 can be replaced by a frame 212 ″. The frame 212 "includes a plurality of elastic portions 2121 and a frame body 2122". The frame 212 "has the same or similar technical features as the frame 212, except that the frame 212" may omit the first through hole 212r. In this example, both connection ends 2121a of the elastic portion 2121 are connected to the upper surface 212s1 of the frame body 2122 ″.
Fig. 5 is a partial cross-sectional view of a frame 312 according to another embodiment of the invention. In the aforementioned electronic device 100, the frame 112 may be replaced by the frame 312 of fig. 5, and the housing 120 interfacing with the frame 112 may be replaced by the housing 320 of fig. 5. The frame 312 includes a frame body 3122, a plurality of elastic portions 1121, and a plurality of first through holes 312r. The frame 312 of the embodiment of the present invention has the same or similar technical features as the frame 112 of the previous embodiment, except that the elastic portion 1121 is connected to the bottom surface 312b of the first through hole 312r and does not protrude beyond the upper surface 312s1 of the frame body 3122 (e.g., the elastic portion 1121 is inwardly disposed relative to the upper surface 312s 1).
As shown in fig. 5, the housing 320 (shown in dotted lines) abutting against the frame 312 includes a housing body 321 and a plurality of abutting portions 322. The housing body 321 has a lower surface 321s, and the abutting portion 322 is connected to the housing body 321 and protrudes from the lower surface 321 s. When the key module 310 is assembled with the housing 320, the abutting portions 322 are located in the corresponding first through holes 312r and abut against the corresponding elastic portions 1121.
As shown in fig. 5, the elastic portion 1121 includes a connection end 1121a and a free end 1121b, the connection end 1121a is connected to the bottom surface 312b of the first through hole 312r and protrudes relative to the bottom surface 312b of the first through hole 312r, and the free end 1121b does not protrude beyond the upper surface 312s1 of the frame body 3122.
As shown in fig. 5, when the frame 312 is abutted against the housing 320, the elastic portion 1121 may be pressed against the end surface of the corresponding abutting portion 322 of the housing 320. Since the elastic portion 1121 has elasticity (or flexibility), when the audio frequency of the sound played by the speaker is transmitted to the elastic portion 1121, the elastic portion 1121 is deformed substantially along the normal direction N1, so that the audio frequency of the sound does not easily cause the friction or impact between the lower surface 321s and the upper surface 312s1, thereby reducing the noise.
Fig. 6 is a partial cross-sectional view of a frame 412 according to another embodiment of the invention. In the aforementioned electronic device 200, the frame 212 may be replaced by the frame 412 of fig. 6, and the housing 120 interfacing with the frame 212 may be replaced by the housing 320 of fig. 6. The frame 412 includes a frame body 3122, a plurality of elastic portions 2121, a plurality of first through holes 212r, and a plurality of second through holes 412r. The second through hole 412r penetrates the sidewall of the frame body 3122. The frame 412 of the embodiment of the present invention has the same or similar technical features as the frame 312 of the previous embodiment, except that the second through hole 412r extends downward from the upper surface 312s1, the first through hole 212r is located below the second through hole 412r, and the elastic portion 2121 crosses over the first through hole 212r.
The elastic portion 2121 may be connected to the inner side surface of the first through hole 212r and/or the bottom surface 412b of the second through hole 412r. In this embodiment, as shown in fig. 6, the elastic portion 2121 includes two connecting ends 2121a connected to two portions of the inner surface of the first through hole 212r and two portions of the bottom surface 412b of the second through hole 412r.
As shown in fig. 6, when the frame 412 is abutted against the housing 320, the elastic portion 2121 can press against the end surface of the corresponding abutting portion 322 of the housing 320. Since the elastic portion 2121 has elasticity (or flexibility), when the audio frequency of the sound played by the speaker is transmitted to the elastic portion 2121, the elastic portion 2121 deforms substantially along the normal direction N1, so that the audio frequency of the sound does not easily cause the lower surface 321s to rub or impact the upper surface 312s1, thereby reducing the noise.
The present invention is capable of other embodiments, and various changes and modifications can be made by one skilled in the art without departing from the spirit and scope of the invention.
Claims (11)
1. A key module, comprising:
a plurality of keys;
a frame connected to the keys; and
a plurality of connecting parts, each connecting part connects the corresponding key and the frame,
wherein, the frame comprises an upper surface and a plurality of elastic parts, and each elastic part is staggered with the upper surface up and down;
the frame further comprises a frame body, the frame body is provided with the upper surface, each elastic part comprises a connecting end and a free end, the connecting end is fixed on the frame body, the free end transversely extends along a single direction, the frame body and each elastic part are of an integrated structure, and when the key module is assembled with a shell of an electronic device, the elastic parts are abutted to the shell of the electronic device;
the frame body comprises a side wall which surrounds the keys in a closed manner, the elastic part is a part of the side wall extending, and the elastic part and the side wall are made of the same material.
2. The key module of claim 1, wherein each of the resilient portions protrudes relative to the top surface.
3. The key module of claim 1, wherein the frame further has a plurality of first through holes, each of the first through holes extends to the upper surface, the connecting end of each of the elastic portions is connected to an inner side of the corresponding first through hole, and the free end of each of the elastic portions is vertically staggered from the upper surface.
4. The key module of claim 1, wherein when each of the elastic portions is in a free state, each of the elastic portions protrudes a protruding length with respect to the upper surface; when the key module is assembled with the shell, the deformation amount of each elastic part is smaller than the protruding length.
5. A key module, comprising:
a plurality of keys;
a frame connected to the keys; and
a plurality of connecting parts, each connecting part connects the corresponding key and the frame,
wherein, the frame comprises an upper surface and a plurality of elastic parts, and each elastic part is staggered with the upper surface up and down;
the frame further comprises a frame body, the frame is further provided with a plurality of first through holes and a plurality of second through holes, each second through hole extends downwards from the upper surface, each first through hole is positioned below the corresponding second through hole, each elastic part spans the corresponding first through hole, each elastic part comprises two connecting ends, each elastic part extends along a curve, and when the key module is assembled with a shell of an electronic device, the elastic parts are abutted against the shell of the electronic device;
the frame body comprises a side wall which surrounds the keys in a closed manner, the elastic part is a part of the side wall extending, and the elastic part and the side wall are made of the same material.
6. A key module, comprising:
a plurality of keys;
a frame connected to the keys; and
a plurality of connecting parts, each connecting part connects the corresponding key and the frame,
the frame comprises an upper surface and a plurality of elastic parts, and each elastic part and the upper surface are staggered up and down;
the frame further comprises a frame body, the frame body is provided with the upper surface, the frame further comprises a plurality of first through holes, each elastic part comprises two connecting ends, the two connecting ends are connected to the inner side surfaces of the corresponding first through holes, the frame body and each elastic part are of an integrated structure, each elastic part extends along a curve, and when the key module is assembled with a shell of an electronic device, the elastic parts are abutted to the shell of the electronic device;
the frame body comprises a side wall, the side wall surrounds the keys in a closed mode, the elastic part is a part of the side wall in an extending mode, and the elastic part and the side wall are made of the same material.
7. A key module, comprising:
a plurality of keys;
a frame connected to the keys; and
a plurality of connecting parts, each connecting part connects the corresponding key and the frame,
wherein, the frame comprises an upper surface and a plurality of elastic parts, and each elastic part is staggered with the upper surface up and down;
the frame further comprises a frame body, the frame body is provided with the upper surface, each elastic part comprises two connecting ends, the two connecting ends are connected to the upper surface, the frame body and each elastic part are of an integrally formed structure, each elastic part extends along a curve, and when the key module is assembled with a shell of an electronic device, the elastic parts are abutted to the shell of the electronic device;
the frame body comprises a side wall, the side wall surrounds the keys in a closed mode, the elastic part is a part of the side wall in an extending mode, and the elastic part and the side wall are made of the same material.
8. An electronic device, comprising:
a housing; and
the key module according to any one of claims 1 to 7, wherein the elastic parts are abutted against the housing.
9. The electronic device of claim 8, wherein the housing is in point contact or line contact with each of the elastic portions.
10. The electronic device of claim 8, wherein the housing has a lower surface opposite the upper surface with a space therebetween.
11. The electronic device according to claim 8, wherein the housing includes a housing body and a plurality of abutting portions, the housing has a lower surface, each abutting portion protrudes from the lower surface, and an end surface of each abutting portion abuts against the corresponding elastic portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010699358.3A CN111816244B (en) | 2020-07-20 | 2020-07-20 | Key module and electronic device using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010699358.3A CN111816244B (en) | 2020-07-20 | 2020-07-20 | Key module and electronic device using same |
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| CN111816244A CN111816244A (en) | 2020-10-23 |
| CN111816244B true CN111816244B (en) | 2022-10-11 |
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| Publication number | Publication date |
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| CN111816244A (en) | 2020-10-23 |
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