CN110275568B - Knob assembly and electronic device - Google Patents
Knob assembly and electronic device Download PDFInfo
- Publication number
- CN110275568B CN110275568B CN201810241733.2A CN201810241733A CN110275568B CN 110275568 B CN110275568 B CN 110275568B CN 201810241733 A CN201810241733 A CN 201810241733A CN 110275568 B CN110275568 B CN 110275568B
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- rubber head
- transmission shaft
- knob
- knob assembly
- recess
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- 230000005540 biological transmission Effects 0.000 claims abstract description 75
- 239000000463 material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 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
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
- G05G1/08—Controlling members for hand actuation by rotary movement, e.g. hand wheels
- G05G1/10—Details, e.g. of discs, knobs, wheels or handles
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Adjustable Resistors (AREA)
- Mechanical Control Devices (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
The invention discloses a knob assembly and an electronic device. The knob assembly comprises a knob, a first transmission shaft, a second transmission shaft, a first rubber head, a second rubber head, a bearing, a sliding track, a spring and an encoder. The knob is exposed from the housing. The first rubber head and the knob are respectively positioned at two ends of the first transmission shaft. The bearing sleeve is arranged on the first transmission shaft and is positioned between the knob and the first rubber head. The slide rail is fixed to the housing, has opposed upper and lower portions, and the bearings are slidably positioned in the upper and lower portions. One end of the spring is fixed on the shell and is positioned below the first transmission shaft. The second rubber head and the encoder are respectively positioned at two ends of the second transmission shaft, and the second rubber head is positioned above the first rubber head and approximately overlapped with the first rubber head. The function of preventing error touch can be achieved by using the elastic structure and the sliding track in the knob component.
Description
Technical Field
The invention relates to a knob assembly and an electronic device with the same.
Background
In the conventional electronic devices, in order to facilitate adjustment and control and operation handfeel, many electronic devices have a knob design on the edge of the housing, which functions as volume adjustment or menu control. However, the knob design of the electronic device may have a problem of erroneous touch, such as the knob being rubbed or carelessly touched when being placed in a pocket, which may cause a sudden volume change, or cause a wrong function setting such as a wrong menu opening, a wrong closing or opening procedure.
Disclosure of Invention
In view of the above, some embodiments of the present invention disclose an electronic device with an improved knob assembly, which utilizes an elastic structure and a sliding track in the knob assembly to prevent an encoder from being driven by an external force generated by rotating the knob before the knob is pressed down, thereby preventing a false touch.
One aspect of the present invention is a knob assembly mounted to a housing.
According to an embodiment of the present invention, a knob assembly includes a knob, a first transmission shaft, a second transmission shaft, a first rubber head, a second rubber head, a bearing, a sliding track, a spring, and an encoder. The knob is exposed from the housing. The first rubber head and the knob are respectively positioned at two ends of the first transmission shaft. The bearing sleeve is arranged on the first transmission shaft and is positioned between the knob and the first rubber head. The slide rail is fixed to the housing, has opposed upper and lower portions, and the bearings are slidably positioned in the upper and lower portions. One end of the spring is fixed on the shell and is positioned below the first transmission shaft. The second rubber head and the encoder are respectively positioned at two ends of the second transmission shaft, and the second rubber head is positioned above the first rubber head and approximately overlapped with the first rubber head.
In one embodiment, the knob assembly further includes a spring sleeve, the spring sleeve is sleeved on the first transmission shaft, located between the bearing and the first rubber head, and fixed to the other end of the spring.
In one embodiment, the bearing has an upper protrusion and a lower protrusion opposite to each other, the upper portion and the lower portion of the sliding track each have a groove, and the two grooves respectively receive the upper protrusion and the lower protrusion.
In one embodiment, the top surface of the upper protrusion is arc-shaped, and the upper groove has two opposite wall surfaces and a groove bottom adjoining the two wall surfaces, and the groove bottom is arc-shaped.
In one embodiment, one of the two wall surfaces of the upper recess is substantially perpendicular to the axis of the first drive shaft and the other is inclined with respect to the axis of the first drive shaft.
In one embodiment, the width of the upper groove near the groove bottom is greater than the width of the upper groove near the first transmission shaft.
In one embodiment, the upper recess has two opposing walls that abut the upper protrusion.
In one embodiment, the lower recess has two opposing walls that abut the lower projection.
In one embodiment, the top surface of the lower protrusion is arc-shaped, and the lower groove has two opposite wall surfaces and a groove bottom adjoining the two wall surfaces, and the groove bottom is arc-shaped.
In one embodiment, one of the two wall surfaces of the lower recess is substantially perpendicular to the axis of the first drive shaft, and the other is inclined with respect to the axis of the first drive shaft.
In one embodiment, the width of the lower groove near the groove bottom is greater than the width of the lower groove near the first transmission shaft.
In one embodiment, the first rubber head and the second rubber head have a gap therebetween.
In one embodiment, the material of the first rubber head and the material of the second rubber head are rubber.
Another aspect of the present invention is an electronic device.
According to an embodiment of the present invention, an electronic device includes a housing and a knob assembly mounted on the housing. The knob assembly comprises a knob, a first transmission shaft, a second transmission shaft, a first rubber head, a second rubber head, a bearing, a sliding track, a spring and an encoder. The knob is exposed from the housing. The first rubber head and the knob are respectively positioned at two ends of the first transmission shaft. The bearing sleeve is arranged on the first transmission shaft and is positioned between the knob and the first rubber head. The slide rail is fixed to the housing, has opposed upper and lower portions, and the bearings are slidably positioned in the upper and lower portions. One end of the spring is fixed on the shell and is positioned below the first transmission shaft. The second rubber head and the encoder are respectively positioned at two ends of the second transmission shaft, and the second rubber head is positioned above the first rubber head and approximately overlapped with the first rubber head.
In one embodiment, the electronic device further includes a display panel and a circuit board. The display panel is located in the opening of the shell, and the circuit board is located in the shell and electrically connected with the display panel and the encoder.
In the above embodiment of the present invention, when the knob is not applied with a force perpendicular to the axial direction of the first transmission shaft, the first transmission shaft may be kept horizontal by the elastic force of the spring, so that a gap is provided between the first rubber head and the second rubber head. Under this state, when the knob receives the external force of rotating the knob, the second rubber head on the second transmission shaft can not be driven by the first rubber head, so that the second transmission shaft can not drive the encoder, and the function of adjusting the electronic device by mistakenly touching the knob can be prevented. When the knob is applied with a force perpendicular to the axial direction of the first transmission shaft, the first transmission shaft is inclined to enable the first rubber head to contact the second rubber head. Under the state, when the knob is subjected to external force for rotating the knob, the second rubber head rotates through the friction of the first transmission shaft, and then the function of the electronic device is adjusted.
Drawings
Fig. 1 is a perspective view of an electronic device according to an embodiment of the invention.
FIG. 2 is a cross-sectional view of the knob assembly of the electronic device of FIG. 1 taken along line 2-2, with the knob in a state where no force is applied in a direction perpendicular to the axis of the shaft of the first drive.
FIG. 3 is a cross-sectional view of the knob assembly of the electronic device of FIG. 1 taken along line 3-3.
Fig. 4 is a state in which the knob of fig. 2 is applied with a force perpendicular to the axial direction of the shaft of the first transmission.
Detailed Description
In the following description, numerous implementation details are set forth in order to provide a thorough understanding of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the invention. That is, in some embodiments of the invention, such implementation details are not necessary. In addition, for the sake of simplicity, some conventional structures and elements are shown in the drawings in a simple schematic manner.
Fig. 1 is a perspective view of an electronic device 200 according to an embodiment of the invention. Fig. 2 is a cross-sectional view of the knob assembly 100 of the electronic device 200 of fig. 1 along the line 2-2, and the knob 110 is in a state of not being applied with a force in a direction perpendicular to the axis Ax of the first transmission shaft 120 a. Referring to fig. 1 and fig. 2, the electronic device 200 includes a knob assembly 100, a housing 210, a display panel 220 and a circuit board 230. The display panel 220 is located in the opening of the housing 210, the circuit board 230 is located in the housing 210, and the circuit board 230 is electrically connected to the display panel 220 and the encoder 170. The knob assembly 100 includes a knob 110, a first transmission shaft 120a, a second transmission shaft 120b, a first rubber head 130a, a second rubber head 130b, a bearing 140, a sliding rail 150, a spring 160, and an encoder 170. The knob 110 is exposed from the housing 210. The first rubber head 130a and the knob 110 are respectively located at two ends of the first transmission shaft 120 a. The bearing 140 is sleeved on the first transmission shaft 120a and located between the knob 110 and the first rubber head 130 a. The slide rail 150 is secured to the housing 210, has opposing upper and lower portions 152, 154, and the bearing 140 is slidably positioned in the upper and lower portions 152, 154. One end of the spring 160 is fixed to the housing 210 and is located below the first transmission shaft 120 a. The second rubber head 130b and the encoder 170 are respectively located at two ends of the second transmission shaft 120b, and the second rubber head 130b is located above the first rubber head 130a and approximately overlapped with the first rubber head 130 a.
When the knob 110 is not applied with a force perpendicular to the axis Ax of the first transmission shaft 120a (e.g., a force in the direction D2), the first transmission shaft 120a can be kept horizontal by the elastic force of the spring 160, so that a gap D is formed between the first rubber head 130a on the first transmission shaft 120 and the second rubber head 130b on the second transmission shaft 120 b. In this state, when the knob 110 is subjected to an external force for rotating the knob 110 (for example, in the direction D1), the second rubber head 130b on the second transmission shaft 120b is not driven by the first rubber head 130a, so the first transmission shaft 120a only idles and does not drive the second transmission shaft 120b connected to the encoder 170 to rotate. In this way, the encoder 170 is not driven by the second transmission shaft 120b, and the user can be prevented from touching the knob 110 by mistake to adjust the function of the electronic device 200. The functions of the electronic device 200, such as volume adjustment, menu turning on or off, and program turning on or off, are not intended to limit the present invention.
In the present embodiment, the knob assembly 100 further includes a spring sleeve 162, and the spring sleeve 162 is sleeved on the first transmission shaft 120a and located between the bearing 140 and the first rubber head 120 a. Further, a spring sleeve 162 is fixed to one end of the spring 160.
In the present embodiment, the bearing 140 has an upper projection 142a and a lower projection 142b facing each other, the upper portion 152 and the lower portion 154 of the slide rail 150 each have a groove 153 and a groove 155, and the grooves 153 and 155 receive the upper projection 142a and the lower projection 142b, respectively. The top surface 143a of the upper protrusion 142a is curved. Recess 153 of upper portion 152 has opposing walls 153a and 153b and has a trough bottom 153e adjacent walls 153a and 153 b. The groove bottom 153e is arc-shaped. The wall 153b of the recess 153 of the upper part 152 is substantially perpendicular to the axis Ax of the first drive shaft 120a and the wall 153a is inclined with respect to the axis Ax of the first drive shaft 120a such that the width of the recess 153 of the upper part 152 near the groove base 153e is greater than the width of the recess 153 of the upper part 152 near the first drive shaft 120 a. The top surface 143b of the lower protrusion 142b is curved. Recess 155 of lower portion 154 has opposing walls 155a and 155b and a groove bottom 155e adjacent walls 155a and 155 b. The groove bottom 155e is arc-shaped. The wall 155a of the recess 155 of the lower portion 154 is substantially perpendicular to the axis Ax of the first drive shaft 120a and the wall 155b is inclined relative to the axis Ax of the first drive shaft 120a such that the width of the recess 155 of the lower portion 154 adjacent the slot bottom 155e is greater than the width of the recess 155 of the lower portion 154 adjacent the first drive shaft 120 a. By the above design of the upper portion 152 recess 153, the upper protrusion 142a of the bearing 140, the lower portion 154 recess 155 and the lower protrusion 142b of the bearing 140, when the knob 110 is applied with a force (e.g., a downward force) perpendicular to the axis Ax of the first transmission shaft 120a, the bearing 140 and the first transmission shaft 120a can be allowed to tilt slightly, so that the first rubber head 130a contacts the second rubber head 130 b.
When the knob 110 is forced in a direction other than the vertical axis Ax, one side of the upper protrusion 142a of the bearing 140 can abut against the wall 153b, and one side of the lower protrusion 142b of the bearing 140 can abut against the wall 155a, so that the bearing 140 cannot easily slide, and the first transmission shaft 120a is kept horizontal.
In the present embodiment, the material of the first rubber head 130a and the material of the second rubber head 130b may be rubber, but not limited thereto. In addition, the material of the spring sleeve 162 may be rubber, but is not limited thereto.
FIG. 3 is a cross-sectional view of the knob assembly 100 of the electronic device 200 of FIG. 1 taken along line 3-3. Referring to fig. 1 and 3, the upper portion 152 and the lower portion 154 of the sliding rail 150 each have a groove 153 and a groove 155. The recess 153 of the upper portion 152 has opposing wall surfaces 153c and 153d, the wall surfaces 153c and 153d of the recess 153 of the upper portion 152 being substantially perpendicular to the axis Ax of the first drive shaft 120 a. The recess 155 of the lower portion 154 has opposing wall surfaces 155c and 155d, and the wall surfaces 155c and 155d of the recess 155 of the lower portion 154 are substantially perpendicular to the axis Ax of the first drive shaft 120 a. With such a design, when the knob 110 receives a horizontal force (e.g., a left-right direction), the wall 153c or 153d can contact the upper protrusion 142a to serve as a limit stop, and the wall 155c or 155d can contact the lower protrusion 142b to serve as a limit stop
Fig. 4 shows the knob 110 of fig. 2 in a state where a force is applied in a direction D2 perpendicular to the axis Ax of the first transmission shaft 120 a. Referring to fig. 1 and 4, since the first rubber head 130a is located at one end of the first transmission shaft 120a, the second rubber head 130b is located at one end of the second transmission shaft 120b, and the second rubber head 130b is located above the first rubber head 130a and substantially overlaps the first rubber head 130a, when the knob 110 receives a force perpendicular to the axis Ax direction D2 of the first transmission shaft 120a, the first transmission shaft 120a pulls the spring sleeve 162 to stretch the spring 160 to generate a deformation. At this time, the upper and lower protrusions 142a and 142b of the bearing 140 may slide in the grooves 153 and 155 of the slide rail 150, respectively, such that one side of the upper protrusion 142a of the bearing 140 abuts the wall surface 153a and one side of the lower protrusion 142b of the bearing 140 abuts the wall surface 155 b. In this state, the first rubber head 130a moves in the direction D3 and contacts the second rubber head 130 b. Then, when the knob 110 is rotated by the force applied in the direction D1 of fig. 3, the first rubber head 130a and the second rubber head 130b are in friction connection transmission, the first transmission shaft 120a can drive the second transmission shaft 120b, so that the second transmission shaft 120b also rotates along the direction D1, and further the second transmission shaft 120b drives the encoder 170 to rotate, and then the encoder 170 transmits the signal to the circuit board 230, thereby adjusting the function of the electronic device 200. In this embodiment, the knob 110 of the knob assembly 100 in fig. 3 may be a volume knob of MP3, and the required volume can be adjusted only by the force of the direction D2 before the knob 110 is rotated in the direction D1, so that the volume can be prevented from being suddenly turned by mistake.
After the function of the electronic device 200 is adjusted, the knob 110 may be released to remove the force perpendicular to the axis Ax direction D2 of the first transmission shaft 120a, and due to the elastic force of the spring 160, the spring 160 that is originally stretched may return to the original position, and drive the first transmission shaft 120a to return to the state shown in fig. 2, so that the gap D shown in fig. 2 is formed between the first rubber head 130a and the second rubber head 130 b. In this state, the encoder 160 is not driven to transmit signals to the circuit board 230, and the original function of the electronic device 200 can be maintained. For example, when the knob 110 of the knob assembly 100 is the knob of the MP3, the volume will be maintained at the size set when the knob 110 of the MP3 is pressed after the knob 110 of the MP3 is no longer pressed.
The knob assembly 100 of the electronic device 200 of the present invention can be embodied in various forms, such as a volume knob of MP3, a screen brightness of a tablet device, a menu of any electronic device, etc., and the design of the knob assembly 100 can be adopted to achieve the effect of preventing accidental touch.
Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention.
Claims (11)
1. A knob assembly mounted to a housing, said knob assembly comprising:
a knob exposed from the housing;
a first drive shaft;
the first rubber head and the knob are respectively positioned at two ends of the first transmission shaft;
the bearing is sleeved on the first transmission shaft and positioned between the knob and the first rubber head, and the bearing is provided with an upper lug and a lower lug which are opposite;
the sliding rail is fixed on the shell and provided with an upper part and a lower part which are opposite, the bearing can be slidably positioned in the upper part and the lower part, the upper part and the lower part of the sliding rail are respectively provided with a groove, the two grooves are used for accommodating the upper lug and the lower lug respectively, the top surface of the upper lug is arc-shaped, the groove in the upper part is provided with two opposite wall surfaces and a groove bottom adjacent to the two wall surfaces, the groove bottom is arc-shaped, one of the two wall surfaces is vertical to the axis of the first transmission shaft, and the other wall surface is inclined relative to the axis of the first transmission shaft;
a spring, one end of which is fixed on the shell and is positioned below the first transmission shaft;
an encoder;
a second drive shaft; and
the second rubber head, with the encoder is located respectively the both ends of second transmission shaft, the second rubber head is located the top of first rubber head and with first rubber head overlaps, first rubber head with the clearance has between the second rubber head.
2. The knob assembly according to claim 1, further comprising:
and the spring sleeve is sleeved on the first transmission shaft, is positioned between the bearing and the first rubber head and is fixed at the other end of the spring.
3. The knob assembly according to claim 1, wherein the width of said recess of said upper portion adjacent said slot bottom is greater than the width of said recess of said upper portion adjacent said first drive shaft.
4. The knob assembly according to claim 1, wherein said recess of said upper portion has two other opposing walls abutting said upper projection.
5. The knob assembly according to claim 1, wherein said recess of said lower portion has two other opposing walls abutting said lower protrusion.
6. The knob assembly according to claim 1, wherein said lower projection has a top surface that is arcuate, said lower recess having opposing walls and a recess bottom adjacent said walls, said recess bottom being arcuate.
7. The knob assembly according to claim 6, wherein one of the two wall surfaces is perpendicular to the axis of the first transmission shaft and the other wall surface is inclined with respect to the axis of the first transmission shaft.
8. The knob assembly according to claim 6, wherein the width of said recess of said lower portion adjacent said slot bottom is greater than the width of said recess of said lower portion adjacent said first drive shaft.
9. The knob assembly according to claim 1, wherein the first rubber head and the second rubber head are made of rubber.
10. An electronic device, comprising:
a housing;
a knob assembly mounted to the housing, the knob assembly comprising:
a knob located outside the housing;
a first drive shaft;
the first rubber head and the knob are respectively positioned at two ends of the first transmission shaft;
the bearing is sleeved on the first transmission shaft and positioned between the knob and the first rubber head, and the bearing is provided with an upper lug and a lower lug which are opposite;
the sliding rail is fixed on the shell and provided with an upper part and a lower part which are opposite, the bearing can be slidably positioned in the upper part and the lower part, the upper part and the lower part of the sliding rail are respectively provided with a groove, the two grooves are used for accommodating the upper lug and the lower lug respectively, the top surface of the upper lug is arc-shaped, the groove in the upper part is provided with two opposite wall surfaces and a groove bottom adjacent to the two wall surfaces, the groove bottom is arc-shaped, one of the two wall surfaces is vertical to the axis of the first transmission shaft, and the other wall surface is inclined relative to the axis of the first transmission shaft;
a spring, one end of which is fixed on the shell and is positioned below the first transmission shaft;
an encoder;
a second drive shaft; and
the second rubber head, with the encoder is located respectively the both ends of second transmission shaft, just the second rubber head is located the top of first rubber head and with first rubber head overlaps, first rubber head with have the clearance between the second rubber head.
11. The electronic device of claim 10, further comprising:
a display panel located in the opening of the housing; and
and the circuit board is positioned in the shell and is electrically connected with the display panel and the encoder.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW107108718 | 2018-03-14 | ||
| TW107108718A TWI658353B (en) | 2018-03-14 | 2018-03-14 | Knob assembly and electronic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110275568A CN110275568A (en) | 2019-09-24 |
| CN110275568B true CN110275568B (en) | 2021-03-19 |
Family
ID=67347904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810241733.2A Active CN110275568B (en) | 2018-03-14 | 2018-03-22 | Knob assembly and electronic device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110275568B (en) |
| TW (1) | TWI658353B (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201489386U (en) * | 2009-08-25 | 2010-05-26 | 美的集团有限公司 | Telescopic knob assembly for household appliance |
| TWI444688B (en) * | 2011-05-11 | 2014-07-11 | Delta Electronics Inc | Transmission assembly |
| CN203117832U (en) * | 2013-03-18 | 2013-08-07 | 厦门歌乐电子企业有限公司 | Rotary knob, vehicle-mounted electronic device and vehicle |
| CN203414876U (en) * | 2013-07-01 | 2014-01-29 | 江阴匡时建材有限公司 | Control knob with locking function |
| WO2015194003A1 (en) * | 2014-06-19 | 2015-12-23 | 洋佑 菊永 | Knob with erroneous operation prevention function |
| CN204178141U (en) * | 2014-10-10 | 2015-02-25 | 洪瑜浩 | There is the wrist-watch of ball screw table hat |
| CN104916478B (en) * | 2015-07-09 | 2017-07-28 | 广东美的厨房电器制造有限公司 | Mechanical knob component and household electrical appliance |
| CN204868617U (en) * | 2015-07-24 | 2015-12-16 | 傅映林 | Mechanically fastening device |
| CN106598131B (en) * | 2016-12-27 | 2018-05-22 | 歌尔科技有限公司 | A kind of anti-error triggering adjusting knob mechanism and a kind of audio player |
-
2018
- 2018-03-14 TW TW107108718A patent/TWI658353B/en active
- 2018-03-22 CN CN201810241733.2A patent/CN110275568B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| TWI658353B (en) | 2019-05-01 |
| CN110275568A (en) | 2019-09-24 |
| TW201939195A (en) | 2019-10-01 |
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