CN104715954A - Rotary knob type operation device of household electric appliance and household electric appliance - Google Patents
Rotary knob type operation device of household electric appliance and household electric appliance Download PDFInfo
- Publication number
- CN104715954A CN104715954A CN201310690292.1A CN201310690292A CN104715954A CN 104715954 A CN104715954 A CN 104715954A CN 201310690292 A CN201310690292 A CN 201310690292A CN 104715954 A CN104715954 A CN 104715954A
- Authority
- CN
- China
- Prior art keywords
- operating means
- protrusions
- track
- knob operating
- rotating shaft
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/10—Movable parts; Contacts mounted thereon
- H01H19/14—Operating parts, e.g. turn knob
Abstract
The invention relates to a rotary knob type operation device of a household electric appliance and the household electric appliance. The rotary knob type operation device comprises a rotating shaft, a rotating piece, a fixed piece, a track and a protruding piece. The track is arranged on one of the rotating piece and the fixed piece and comprises at least one slope. The protruding piece is arranged on the other one of the rotating piece and the fixed piece. The protruding piece elastically abuts against the track in the direction parallel to the extending direction of the rotating shaft. When the rotating shaft drives the rotating piece to rotate, the protruding piece relatively moves on the track. The rotating shaft can resist gradually-increasing resistance generated when the protruding piece goes up the slopes to rotate. The rotary knob type operation device of a different technical concept is more compact in structure, and a user can obtain the hand feeling that the rotating resistance gradually increases when operating the rotary knob type operation device.
Description
[technical field]
The present invention relates to a kind of household electrical appliance, refer in particular to a kind of knob operating means of household electrical appliance and there are the household electrical appliance of this knob operating means.
[background technology]
For the household electrical appliance that some knobs control, user is in the process rotating knob, and can obtain the feel that a kind of rotational resistance increases gradually, user one looses one's grip, and knob just there will be automatic convolution to a certain degree.Prior art utilizes cam principle to realize this function, and such as Chinese invention patent application CN102420068A just belongs to so a kind of structure.The radial direction of rotor has latch openings, and latch openings has inclined-plane, and when the rotor is turning, being arranged at rotor latch on one side can relatively move along inclined-plane, thus gives user the feel that a kind of rotational resistance increases.All the time, prior art is all the structure adopting this gauche form, namely latch is arranged on one side of rotor, the structure of such operating means can not be compacter, and, this structure makes knob smooth and easy not in the rotation process resisting the resistance increased gradually, affects the feel of user, also operating means easy to wear.
[summary of the invention]
Main purpose of the present invention is, provides the knob operating means of the different household electrical appliance of a kind of technical conceive and has the household electrical appliance of this knob operating means.
The present invention solves above-mentioned technical problem by the following technical programs: a kind of knob operating means of household electrical appliance, comprises rotating shaft, rotating part, static element, track and protrusions; Described track be arranged at described rotating part and described static element one of them, and described track has at least one slope; Described protrusions is arranged at described rotating part and described static element wherein another, and described protrusions flexibly abuts described track along the bearing of trend being parallel to described rotating shaft; When described rotating shaft drives described rotating part to rotate, described protrusions is relatively moved on the track; Described rotating shaft can resist described protrusions along producing the resistance that increases gradually in the upward slope process of described slope and rotating." track " of the present invention can be the track of channel-shaped, also can be the track of plane, can be more protruding track.When protrusions elasticity abuts track, can there is deformation in protrusions self, and " described protrusions is along described slope upward slope process " is interpreted as protrusions moving along slope towards the direction making the deformation of protrusions increase gradually.The invention provides the knob operating means that a kind of technical conceive is different, protrusions flexibly abuts track along the bearing of trend being parallel to rotating shaft, make the more compact structure of knob operating means of the present invention, volume is less, operate more stable, allow user when using knob operating means of the present invention, the feel that a kind of rotational resistance increases gradually can be obtained, this feel can coordinate some functions of household electrical appliance, reminding user is about to or has realized the adjustment of certain function, especially user can be avoided once suddenly firmly excessive and cause the mechanical failure of operating means.
Optionally, described rotating part has the first plane perpendicular to described rotating shaft bearing of trend, and described track is suitable for being arranged at described first plane; Or described static element has the second plane perpendicular to described rotating shaft bearing of trend, described track is suitable for being arranged at described second plane.These are different from the design of the track that the sidewall of roughly disc-like rotor of the prior art abuts as elasticity.
Optionally, described track is provided with the location structure of process before the described protrusions of confession is gone up a slope along described slope, described protrusions is suitable for being positioned described location structure.
Optionally, disappear in described protrusions when acting on the external force in described rotating shaft along in the upward slope process of described slope, then described rotating shaft convolution is until described protrusions is positioned described location structure.
Optionally, when described protrusions is gone up a slope to described protrusions generation largest deformation along described slope, described rotating shaft can only be rotated towards the direction of contrary by backstop.
Optionally, when described protrusions is through described location structure, described knob operating means performs a function.
Optionally, described function is for opening described household electrical appliance, closing described household electrical appliance or opening virgin lock.
In order to allow protrusions not easily de-orbit motion, knob operating means operation more stable, optionally, described track comprises annular guide channel.So-called annular guide channel only can not be interpreted as the guide groove that head and the tail that a circle is closed are through.Annular guide channel can carry out specific design according to the rotational travel of knob operating means, if discontented 360 ° of the rotational travel of knob operating means, then annular guide channel is nonocclusive one section of circular arc.
Optionally, described location structure is the pit be arranged on described annular guide channel.Like this, when providing good location merit function, the structure of knob operating means is simplified, more convenient processing and manufacturing.
Optionally, described protrusions comprises head and elastic component.
Optionally, as described in head and as described in track through polishing, to make the rotation of rotating shaft more smooth and easy, improve the operating handle of user, meanwhile, reduce the wearing and tearing between protrusions and track.
In order to further facilitate the machine-shaping of part, optionally, described head comprises spheroid, hemisphere or segment, and/or the vertical section of the part contacted with described head of described track is straight line or circular arc.
Optionally, described head comprises ball.Thus, between head and track, friction is rolling friction but not sliding friction, and force of rolling friction is far smaller than force of sliding friction, axis of rotation gets up can be more smooth and easy, better operating handle is brought to user, wearing and tearing between further minimizing protrusions and track, extend the useful life of knob operating means.
Crooked in order to ensure that protrusions does not occur, head does not de-orbit all the time, elastic component can stably stretch, optionally, described protrusions also comprises housing, described housing has opening, and described head has card convex, and described elastic component supports described head and makes it have proal trend until described card convex is fastened in the edge of institute's shell nozzle.
In order to allow more compact structure, reduce the volume of knob operating means, optionally, described rotating part comprises rotating disk, and/or described static element comprises base, and described base has the spatial accommodation holding described rotating part.
Based on main purpose of the present invention, at this, the present invention also provides a kind of household electrical appliance, and it comprises knob operating means as above.The household electrical appliance that described household electrical appliance can be such as washing machines, refrigerator, gas-cooker, electromagnetic stove, coffee machine, dishwasher, disinfection cabinet etc. can adopt knob-operated to control.
Optionally, described household electrical appliance are kitchen range.
Optionally, described kitchen range are electromagnetic stove.Electromagnetic stove of the present invention provides a kind of operating handle of uniqueness to user, improves the culinary art impression of user.
[accompanying drawing explanation]
Fig. 1 is the explosive view of the knob operating means of the household electrical appliance that the present invention one implements;
Stereogram after the assembling that Fig. 2 is the knob operating means shown in Fig. 1;
Fig. 3 is the stereogram of the rotating part of one embodiment of the invention;
Fig. 4 is the stereogram of the static element of one embodiment of the invention;
Fig. 5 is the cutaway view of the knob operating means of one embodiment of the invention;
Fig. 6 is the enlarged drawing of a-quadrant in Fig. 5;
Fig. 7 is the partial enlarged drawing of the knob operating control device of another embodiment of the present invention;
Fig. 8 is the partial enlarged drawing of the knob operating control device of another embodiment of the present invention.
Explanation about Reference numeral:
1-knob operating means; 10-rotating shaft; 20-lid; 30-rotating part; 40-static element; 50-circuit board; 300-track; 301-first plane; 310-slope; 320-location structure; 401-spatial accommodation; 402-second plane; 410-head; 411-card convex; 413-end; 414-connecting portion; 415-ball; 420-elastic component; 430-housing; 431-opening; 440-holder.
[embodiment]
For making there is further understanding to object of the present invention, structure, feature and function thereof, embodiment is hereby coordinated to be described in detail as follows.
The invention provides a kind of knob operating means, can be used on household electrical appliance that such as washing machine, refrigerator, gas-cooker, electromagnetic stove, coffee machine, dishwasher, disinfection cabinet etc. can adopt knob-operated to control, below the knob operating means for electromagnetic stove is shown, but the present invention is not as limit.Please refer to Fig. 1 to Fig. 4, Fig. 1 is the explosive view of the knob operating means of the household electrical appliance that the present invention one implements; Stereogram after the assembling that Fig. 2 is the knob operating means shown in Fig. 1; Fig. 3 is the stereogram of the rotating part of one embodiment of the invention; Fig. 4 is the stereogram of the static element of one embodiment of the invention.The knob operating means 1 of the household electrical appliance of the present embodiment comprises rotating shaft 10, lid 20, rotating part 30, static element 40 and circuit board 50.Wherein, rotating shaft 10 is arranged with the knob (not shown) for user's rotation process.Rotating part 30 is rotating disks, and it is connected with rotating shaft 10, can rotate under the drive of rotating shaft 10.Static element 40 is one can coordinate with lid 20 base assembled, and it has spatial accommodation 401, can hold rotating part 30, and the knob operating means of the present embodiment assembles as shown in Figure 2, compact conformation.Circuit board 50 is arranged under static element 40, circuit board 50 is furnished with the circuit that operation controls.
Please refer to Fig. 3 to Fig. 6, wherein, Fig. 5 is the cutaway view of the knob operating means of one embodiment of the invention; Fig. 6 is the enlarged drawing of a-quadrant in Fig. 5.Rotating part 30 has in the first plane 301, first plane 301 perpendicular to rotating shaft 10 bearing of trend and is provided with track 300, and track 300 has at least one slope 310.Static element 40 is provided with protrusions 400.After knob operating means 1 assembles, protrusions 40 flexibly abuts track 300 along the bearing of trend being parallel to rotating shaft 10; When rotating shaft 10 drives rotating part 30 to rotate, protrusions 400 is relatively moved on track 300; Rotating shaft 10 can resist protrusions 400 along producing the resistance that increases gradually in the upward slope process of slope 310 and rotating.The knob operating means 1 of the present embodiment, after rotating shaft 10 is by rotation to certain position, protrusions 400 starts to go up a slope along slope 310, and continue to rotate towards former direction of rotation, user starts the feel having a kind of rotational resistance to increase gradually.In order to the operating handle of adding users further, track 300 is provided with location structure 320, protrusions 400 go up a slope along slope 310 before through location structure 320, and protrusions 400 is suitable for being positioned location structure 320.Protrusions 400 is along in the upward slope process of slope 310, and the external force acted in rotating shaft 10 disappears, and rotating shaft 10 convolution is until protrusions 400 is positioned location structure 320.As shown in Figure 3, the track 300 of the present embodiment comprises an annular guide channel, and location structure 320 is for being arranged at the pit on guide groove.When protrusions 400 is through location structure 320, knob operating means 1 performs a function, and this function can for opening household electrical appliance, closing household electrical appliance or open Tong Suo etc., and those skilled in the art can design corresponding function according to real needs.
Please refer to Fig. 4 to Fig. 6, protrusions 400 comprises head 410 and elastic component 420.Elastic component 420 is Compress Spring, in order to ensure head 410 not easily deflection and de-orbit 300, protrusions 400 further comprises housing 430, housing 430 has opening 431, head 410 has card convex 411, elastic component 420 supports head 410 and makes it have proal trend, and as shown in Figure 6, head 410 has the trend that moves upward until card convex 411 is fastened in the edge of the opening 431 of housing 430 under the supporting of elastic component 420.Card convex 411 can be along the circumferential spaced projection of head 410, also can be continuous print flange.When protrusions 400 flexibly abuts track 300, because being there is deformation by compressing in elastic component 420, therefore, " protrusions 400 is gone up a slope along slope 310 " refers to that protrusions 400 is moved along slope 310 towards the direction making the deformation of elastic component 420 increase gradually.When in the process that protrusions 400 is gone up a slope along slope 310, the deformation of elastic component 420 comes larger, the elastic-restoring force of elastic component 420 is also increasing, thus the pressure making protrusions 400 act on slope 310 is also increasing, frictional force between protrusions 400 and slope 310 is also more and more large, therefore, the resistance that rotating part 30 rotates is increasing, thus gives the feel that a kind of rotational resistance of user increases gradually.And the feel that this rotational resistance increases gradually can bring unique impression to user, also may be used for reminding user, such as, when user rotates knob to when there is this feel, knob operating means is then corresponding opens functions of child lock.And track 300 as shown in Figure 3 has two slopes 310, each slope 310 correspondence arranges a location structure 320, and when protrusions 400 is through one of them location structure 320, knob operating means 1 performs the function starting household electrical appliance; When protrusions 400 is through wherein another location structure 320, knob operating means 1 performs the function of cutting out household electrical appliance.And, when protrusions 400 to go up a slope along slope 310 there is largest deformation to elastic component 420 time, rotating shaft 10 can only be rotated towards the direction of contrary by backstop, and there is the feel that rotational resistance increases gradually before, pass on a kind of information to user, operating means is about to be transferred to extreme position, prevents user suddenly firmly excessive once, rotate excessively, mechanical failure is caused to knob operating means.Further improve as the present embodiment, head 410 and track 300, through polishing, make head 410 move on track 300 more smooth, and knob operating means operates just more smooth and easy, improve the operating handle of user, also reduce the wearing and tearing between protrusions and track simultaneously.
In another embodiment of the present invention, protrusions 400 is arranged on rotating part 30, and track 300 is arranged on static element 40, particularly, the second plane 402(that static element 40 has perpendicular to the bearing of trend of rotating shaft 10 is shown in Fig. 4), track 300 is arranged in the second plane 402.
Please refer to Fig. 7, Fig. 7 is the partial enlarged drawing of the knob operating control device of another embodiment of the present invention.Element function corresponding to the label that the present embodiment is identical with previous embodiment is identical or similar, does not repeat them here.The difference of the present embodiment and previous embodiment is, head 410 and track 300 are point cantact, and in the embodiment shown in Fig. 6, head 410 is with track 300 for face contacts, and this is very high to the requirement on machining accuracy of track 300 and head 410.Particularly, the head 410 of the present embodiment comprises end 413 and connecting portion 414, and end 413 is a hemisphere, connecting portion 414 be one cylindrical.The vertical section of the part contacted with head 410 of track 300 is circular arc, and the radius of this circular arc is greater than the radius of end 413.In this enforcement, only have the end 413 of protrusions 400 to contact with track 300, and end 413 is tangent with track 300, both are point cantact.The present embodiment has further benefit, reduces the requirement of the machining accuracy of head 410 and track 300.
In another embodiment of the present invention, the vertical section of track 300 can also be " ︹ ", and the vertical section of the part contacted with head 410 of track 300 is straight line.
Please refer to Fig. 8, Fig. 8 is the partial enlarged drawing of the knob operating control device of another embodiment of the present invention.Element function corresponding to label identical with previous embodiment in the present embodiment is identical or similar, does not repeat them here.The difference of the present embodiment and previous embodiment is, head 410 comprises ball 415.Ball 415 not easily de-orbits 300 under the effect of holder 440.Like this, when rotating shaft rotates with rotating part, ball 415 relatively rolls on track 300, and the force of rolling friction between the protrusions 400 of the present embodiment and track 300 is much smaller than the protrusions 400 shown in Fig. 7 and the force of sliding friction between track 300.Therefore, compare other embodiments, the knob operating means of the present embodiment operates more smooth and easy, and the wearing and tearing between protrusions and track are less.
Below be only the preferred embodiments of the present invention, some technical characteristic increased, deletes, revises or replaced the embodiment that can also obtain other.As, elastic component 420 besides compression springs, can also be metal clips or high elastic rubber post etc.; Track 300, except being concave surface, can also be plane or annular boss; Rotating shaft 10 directly can not be connected with rotating part, but rotates by pressing down rear drive rotating part.
Based on main purpose of the present invention, the present invention separately provides a kind of household electrical appliance, and it comprises above-mentioned knob operating means.Household electrical appliance of the present invention can be the household electrical appliance as washing machine, refrigerator, gas-cooker, electromagnetic stove, coffee machine, dishwasher, disinfection cabinet etc. adopt knob-operated to control.In one embodiment of the invention, household electrical appliance are a kind of kitchen range, specifically a kind of electromagnetic stove.
The present invention is described by above-mentioned related embodiment, but above-described embodiment is only enforcement example of the present invention.Must it is noted that the embodiment disclosed limit the scope of the invention.On the contrary, change done without departing from the spirit and scope of the present invention and retouching, all belong to scope of patent protection of the present invention.
Claims (18)
1. the knob operating means (1) of household electrical appliance, comprises rotating shaft (10), rotating part (30), static element (40), track (300) and protrusions (400), it is characterized in that,
Described track (300) be arranged at described rotating part (30) and described static element (40) one of them, and described track (300) has at least one slope (310);
Described protrusions (400) is arranged at described rotating part (30) and described static element (40) wherein another, and described protrusions (400) flexibly abuts described track (300) along the bearing of trend being parallel to described rotating shaft (10);
When described rotating shaft (10) drives described rotating part (30) to rotate, described protrusions (400) is relatively in the upper motion of described track (300);
Described rotating shaft (10) can resist described protrusions (400) along producing the resistance that increases gradually in described slope (310) upward slope process and rotating.
2. knob operating means (1) as claimed in claim 1, it is characterized in that, described rotating part (30) has the first plane (301) perpendicular to described rotating shaft (10) bearing of trend, and described track (300) is suitable for being arranged at described first plane (301); Or described static element (40) has the second plane (402) perpendicular to described rotating shaft (10) bearing of trend, described track (300) is suitable for being arranged at described second plane (402).
3. knob operating means (1) as claimed in claim 1, it is characterized in that, described track (300) is provided with the location structure (320) of process before the described protrusions of confession (400) is gone up a slope along described slope (310), described protrusions (400) is suitable for being positioned described location structure (320).
4. knob operating means (1) as claimed in claim 3, it is characterized in that, disappear along in described slope (310) upward slope process in described protrusions (400) when acting on the external force in described rotating shaft (10), then described rotating shaft (10) convolution is until described protrusions (400) is positioned described location structure (320).
5. knob operating means (1) as claimed in claim 1, it is characterized in that, when described protrusions (400) is gone up a slope to described protrusions (400) generation largest deformation along described slope (310), described rotating shaft (10) can only be rotated towards the direction of contrary by backstop.
6. knob operating means (1) as claimed in claim 3, is characterized in that, when described protrusions (400) is when described location structure (320), described knob operating means (1) performs a function.
7. knob operating means (1) as claimed in claim 6, is characterized in that, described function is for opening described household electrical appliance, closing described household electrical appliance or opening virgin lock.
8. the knob operating means (1) according to any one of claim 1-7, is characterized in that, described track (300) comprises annular guide channel.
9. knob operating means (1) as claimed in claim 8, it is characterized in that, described location structure (320) is for being arranged at a pit on described annular guide channel.
10. the knob operating means (1) according to any one of claim 1-7, is characterized in that, described protrusions (400) comprises head (410) and elastic component (420).
11. knob operating means (1) as claimed in claim 10, is characterized in that, as described in head (410) with as described in track (300) through polishing.
12. knob operating means (1) as claimed in claim 10, it is characterized in that, described head (410) comprises spheroid, hemisphere or segment, and/or the vertical section of the part contacted with described head (410) of described track (300) is straight line or circular arc.
13. knob operating means (1) as claimed in claim 12, it is characterized in that, described head (410) comprises ball (415).
14. knob operating means (1) as claimed in claim 10, it is characterized in that, described protrusions (400) also comprises housing (430), described housing (430) has opening (431), described head (410) has card convex (411), and described elastic component (420) supports described head (410) and makes it have proal trend until described card convex (411) is fastened in the edge of described housing (430) opening (431).
15. knob operating means (1) according to any one of claim 1-7, it is characterized in that, described rotating part (30) comprises rotating disk, and/or described static element (40) comprises base, and described base has the spatial accommodation (401) holding described rotating part (30).
16. 1 kinds of household electrical appliance, is characterized in that, comprise knob operating means (1) as in any one of the preceding claims.
17. household electrical appliance as claimed in claim 16, it is characterized in that, described household electrical appliance are kitchen range.
18. household electrical appliance as claimed in claim 17, it is characterized in that, described kitchen range are electromagnetic stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310690292.1A CN104715954B (en) | 2013-12-16 | 2013-12-16 | The knob operating device and household electrical appliance of household electrical appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310690292.1A CN104715954B (en) | 2013-12-16 | 2013-12-16 | The knob operating device and household electrical appliance of household electrical appliance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104715954A true CN104715954A (en) | 2015-06-17 |
| CN104715954B CN104715954B (en) | 2019-01-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310690292.1A Active CN104715954B (en) | 2013-12-16 | 2013-12-16 | The knob operating device and household electrical appliance of household electrical appliance |
Country Status (1)
| Country | Link |
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| CN (1) | CN104715954B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043010A (en) * | 2015-08-21 | 2015-11-11 | 合肥华凌股份有限公司 | Temperature controller assembly and refrigerator |
| EP3850273A4 (en) * | 2018-11-13 | 2021-11-17 | Samsung Electronics Co., Ltd. | Knob and cooking appliance having the same |
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| US4855541A (en) * | 1986-10-08 | 1989-08-08 | Omron Tateisi Electronics Co. | Electronic component having improved rotary switch detent spring construction and improved terminal seal structure |
| CN1754240A (en) * | 2003-02-24 | 2006-03-29 | E.G.O.电气设备制造股份有限公司 | Rotary switch comprising a switching shaft for an electrical appliance |
| CN101752132A (en) * | 2008-12-09 | 2010-06-23 | 台达电子工业股份有限公司 | Control panel of electric equipment and rotary type control button thereof |
| CN102834886A (en) * | 2010-03-02 | 2012-12-19 | Pas德国有限责任公司 | Panel for a domestic appliance having a rotary switch, and domestic appliance |
| CN102867673A (en) * | 2012-09-17 | 2013-01-09 | 宁波嘉林电子有限公司 | Multi-functional-position rotary switch |
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2013
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4855541A (en) * | 1986-10-08 | 1989-08-08 | Omron Tateisi Electronics Co. | Electronic component having improved rotary switch detent spring construction and improved terminal seal structure |
| CN1754240A (en) * | 2003-02-24 | 2006-03-29 | E.G.O.电气设备制造股份有限公司 | Rotary switch comprising a switching shaft for an electrical appliance |
| CN101752132A (en) * | 2008-12-09 | 2010-06-23 | 台达电子工业股份有限公司 | Control panel of electric equipment and rotary type control button thereof |
| CN102834886A (en) * | 2010-03-02 | 2012-12-19 | Pas德国有限责任公司 | Panel for a domestic appliance having a rotary switch, and domestic appliance |
| CN102867673A (en) * | 2012-09-17 | 2013-01-09 | 宁波嘉林电子有限公司 | Multi-functional-position rotary switch |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043010A (en) * | 2015-08-21 | 2015-11-11 | 合肥华凌股份有限公司 | Temperature controller assembly and refrigerator |
| EP3850273A4 (en) * | 2018-11-13 | 2021-11-17 | Samsung Electronics Co., Ltd. | Knob and cooking appliance having the same |
| US11365887B2 (en) | 2018-11-13 | 2022-06-21 | Samsung Electronics Co., Ltd. | Knob and cooking appliance having the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104715954B (en) | 2019-01-25 |
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