WO2018188574A1 - 一种电磁炉的旋钮结构 - Google Patents

一种电磁炉的旋钮结构 Download PDF

Info

Publication number
WO2018188574A1
WO2018188574A1 PCT/CN2018/082449 CN2018082449W WO2018188574A1 WO 2018188574 A1 WO2018188574 A1 WO 2018188574A1 CN 2018082449 W CN2018082449 W CN 2018082449W WO 2018188574 A1 WO2018188574 A1 WO 2018188574A1
Authority
WO
WIPO (PCT)
Prior art keywords
induction cooker
display
cooker according
knob
knob structure
Prior art date
Application number
PCT/CN2018/082449
Other languages
English (en)
French (fr)
Inventor
杨华
Original Assignee
上海纯米电子科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 上海纯米电子科技有限公司 filed Critical 上海纯米电子科技有限公司
Priority to KR2020197000025U priority Critical patent/KR200492810Y1/ko
Priority to US16/348,027 priority patent/US10753619B2/en
Priority to JP2019600114U priority patent/JP3223502U/ja
Publication of WO2018188574A1 publication Critical patent/WO2018188574A1/zh

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress
    • D06F34/30—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress characterised by mechanical features, e.g. buttons or rotary dials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/14—Spillage trays or grooves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/12—Arrangement or mounting of control or safety devices
    • F24C3/122—Arrangement or mounting of control or safety devices on stoves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/12—Arrangement or mounting of control or safety devices
    • F24C3/124—Control panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • 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
    • H01H19/025—Light-emitting indicators
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H25/00—Switches with compound movement of handle or other operating part
    • H01H25/06—Operating part movable both angularly and rectilinearly, the rectilinear movement being along the axis of angular movement
    • H01H25/065—Operating part movable both angularly and rectilinearly, the rectilinear movement being along the axis of angular movement using separate operating parts, e.g. a push button surrounded by a rotating knob
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/12—Cooking devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/002—Stoves
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/08—Turn knobs
    • H01H2003/085—Retractable turn knobs, e.g. flush mounted
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/036—Light emitting elements
    • H01H2219/037—Light emitting elements using organic materials, e.g. organic LED
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/012—Household appliance

Definitions

  • the invention belongs to the field of configuration of a control device for a furnace or a stove heated by electric energy, and in particular relates to a knob structure of an induction cooker.
  • Induction cooker also known as induction cooker, uses an alternating current to generate an alternating magnetic field whose direction is constantly changing through the coil. A vortex current will appear inside the conductor in the alternating magnetic field, and the Joule heating effect of the eddy current causes the conductor to heat up. Achieve heating.
  • the induction cooker usually includes the following components, a panel for carrying the cookware, a high-voltage main substrate constituting the main current loop, a low-voltage main substrate for computer control functions, a display working state, and an LED operation circuit for transmitting operation instructions, and alternating high-frequency
  • the current is converted into a coil disk of a variable magnetic field, an IGBT that controls a large current through a low current signal, a bridge rectifier that converts an alternating current power source into a direct current power source, and a control unit that adjusts the power level of the induction cooker.
  • the power of the induction cooker is generally adjusted by the power control component.
  • the control methods of the induction cookers sold on the market mostly adopt button type, which are divided into two types: touch buttons and mechanical buttons.
  • the touch button products often have a vegetable soup or water and other substances in the operation part, so that the operation signal cannot be accepted by the main control chip, and the mechanical buttons are often used in the long-term use process by the PET elastic drum set on the panel.
  • the button is broken or broken due to mechanical fatigue and oil corrosion.
  • the button operation is changed to the knob operation mode of the built-in rotary encoder, and the through hole for the knob switch is required to be opened on the casing of the induction cooker.
  • the inner wall of the through hole and the outer wall of the knob switch are required. There is a gap. If the soup or oil in the cooking process flows into the casing along the circumferential gap of the knob switch, it may easily cause a short circuit or other failure inside the casing.
  • Induction cookers as representative kitchen appliances, have begun to gradually use OLED devices as product function display units, reflecting the high-tech level of products.
  • OLED devices As product function display units, reflecting the high-tech level of products.
  • the industry basically adopts a transparent cover on the OLED screen, and sprays or pastes the non-transparent paint or film on the non-display area of the cover and the OLED screen. The material is occluded by the non-appearance area inside the screen to enhance the appearance of the product.
  • the processing precision is high and the cost is high.
  • the present invention has been made to solve the problems of the prior art, and an object thereof is to provide an induction cooker.
  • a knob structure of an induction cooker includes at least one knob switch assembly disposed in the casing and a printed circuit board disposed in the casing, and the knob switch assembly is connected to the printed circuit board through a through hole formed in the casing;
  • a circulation rib protruding from the casing is arranged around the through hole
  • the knob switch assembly is equipped with a display screen
  • a protection component is disposed outside the display screen
  • the knob switch assembly includes a sleeve button, a rotary encoder, a display bracket, and a control assembly.
  • the sleeve button, the rotary encoder and the display bracket are assembled along the axis from the outside to the inside.
  • the sleeve button is provided with a limiting structure for preventing the sleeve button and the rotary encoder from rotating relative to the circumferential direction, and the limiting structure comprises a plurality of buckles disposed at one end of the sleeve button near the printed circuit board and disposed on the sleeve A plurality of ribs on the inner wall of the button.
  • the sleeve button is provided with a flange on an inner wall remote from one end of the printed circuit board.
  • the rotary encoder comprises a fixed inner frame and a rotating outer frame having a hollow structure, and the fixed inner frame and the rotating outer frame are coaxially sleeved, and one end of the fixed inner frame is fixed to an outward side of the printed circuit board.
  • the outer wall of the rotating outer frame is provided with at least one outer buckle and at least one outer slot
  • the inner wall of the fixed inner frame is provided with at least one inner buckle and one limit slot.
  • One end of the display bracket is inserted into the fixed inner frame, and one end surface away from the printed circuit board is provided with a mounting groove, and the outer wall is provided with at least one limiting rib and at least one limiting buckle.
  • a plurality of snap holes are formed on the outer side of the slot wall of the mounting slot, and a bottom hole is formed at the bottom end of the mounting slot, and a pair of ribs are symmetrically disposed on the inner wall thereof, and a bottom rib is formed on a lower side of the inner wall; a left mounting slot is formed on each side of the mounting slot, The right mounting slot forms a fixing hole in the left mounting slot and the right mounting slot.
  • the control component includes a switch button disposed on an outward side of the printed circuit board, a flange piece disposed on an end face of the display stand toward an end surface of the printed circuit board and parallel to the end face, and disposed adjacent to the display stand At least one elastic member and at least one supporting rib at one end of the printed circuit board; the two ends of the elastic member are respectively connected to the display frame bracket, and the supporting ribs are fixed on the elastic member and supported on the surface of the printed circuit board.
  • the control assembly includes a buckle, a door lock disposed in the induction cooker, a return spring, and an annular rib formed on an inner wall of the display bracket.
  • the door lock includes a mounting plate and a lock body connected to the mounting plate, and the lock body is provided with a lock
  • the buckle is fastened to the outer side wall of the display bracket and passes through the through hole of the printed circuit board to cooperate with the lock.
  • One end of the return spring is fixed on the surface of the mounting board, and the other end is fixed to the display bracket. On the inner side wall and stuck through the ring ribs.
  • the control component further includes a signal unit including a signal transmitting unit, a signal receiving unit, and a signal shielding unit, and the signal shielding unit shields the signal receiving unit and the signal when the return spring is in an extended state A signal between the transmitting units to input a control signal for adjusting the household appliance by rotating the knob switch assembly.
  • the signal unit includes a combination of a photoelectric switch and a light shielding sheet, a combination of a reed switch and a magnet, and a combination of a Hall element and a magnet.
  • the photoelectric switch or the light shielding film is disposed on a side of the printed circuit board facing the rotary encoder, and the light shielding film or the photoelectric switch is disposed on the sleeve button.
  • the outer surface of the guiding rib is a concave curved surface, and the inner diameter from the inside to the outside is gradually reduced.
  • the end of the flow guiding rib is provided with a flange located in the upper half circle or the full circle, and the flange protrudes from the outer surface of the end of the flow guiding rib.
  • the height of the flange is ⁇ 1 mm.
  • the display screen is an OLED screen.
  • a screen display area is formed in the display screen.
  • the protection component comprises a screen shield, and a heat welding column is formed on the back of the screen shield.
  • the outer side wall of the screen shield is provided with a plurality of buckles that are in one-to-one correspondence with the buckle holes; the screen shield is fixed to the display by heat welding.
  • On the screen bracket a translucent shield display area is formed at the corresponding display screen.
  • the front end of the screen shield forms a smooth surface, and the rear end forms a partially frosted partial light surface.
  • the protection assembly also includes a light blocking sheet.
  • the light blocking sheet is disposed between the screen shield and the display screen, and is directly attached or indirectly fixed to the display screen.
  • the light blocking sheet corresponding to the screen display area forms a light shielding area of the opening of the opening structure, and one or more limiting holes corresponding to the heat welding column are disposed around the transparent area of the shielding cover.
  • the invention sets the knob switch assembly to a telescopic structure and sets a signal unit in the knob switch assembly.
  • the knob switch assembly When used, the knob switch assembly is automatically popped up when the button is used, and the user can adjust the power of the induction cooker through the knob switch assembly. And the heating time, and after pressing the knob switch assembly, the internal parts of the appliance will be retracted, prolonging the service life and facilitating the user's cleaning.
  • the invention integrates the three kinds of signal receiving devices and signal feedback devices of the display screen, the rotary encoder and the control component in the knob switch assembly, thereby effectively saving the space occupied by the operation display interface occupying the induction cooker, and the product can be further miniaturized and the cost is lower. .
  • the invention adopts a guide rib around the knob switch assembly of the casing, so that when the soup overflows from the casing accidentally or downwardly along the casing, the flow to the knob switch assembly is guided by the flow guiding rib.
  • the flow flows in the direction of the outer peripheral surface of the guide rib to prevent the broth from flowing to the inside of the casing.
  • the invention realizes the fixing of the display screen through the mounting groove on the display bracket, realizes the protection of the display screen through the screen shield and the light blocking sheet, and ensures the display effect of the OLED screen;
  • the display area of the protection component is slightly larger than the display screen by the protection component The display area is guaranteed to be clear; the protection assembly and the display bracket are fixed by the heat welding column and the snap hole to ensure the stability of the protection component.
  • Figure 1 is a cross-sectional view of the present invention
  • Figure 2 is a schematic exploded view of the present invention
  • Figure 3 is a schematic view of the overall structure of the present invention.
  • Figure 4 is a schematic enlarged view of the portion I of Figure 1;
  • Figure 5 is a front elevational view of the deprotection assembly of the present invention.
  • Figure 6 is a schematic structural view of a screen shield in the present invention.
  • Figure 7 is a schematic structural view of a light blocking sheet of the present invention.
  • FIG. 8 is a schematic structural view of a knob switch assembly of the present invention with the control assembly removed;
  • Figure 9 is a schematic structural view of a display stand in the present invention.
  • Figure 10 is an exploded perspective view showing the display screen of the first embodiment of the present invention.
  • Figure 11 is an exploded view showing the assembly of the knob switch assembly and the printed circuit board in the first embodiment of the present invention
  • FIG. 12 is a schematic exploded view of a knob switch assembly according to Embodiment 2 of the present invention.
  • FIG. 13 is a top plan view of a display bracket according to Embodiment 2 of the present invention.
  • FIG. 14 is a schematic perspective structural view of a door lock of a knob switch assembly in a buckled state according to a second embodiment of the present invention.
  • FIG. 15 is a schematic perspective structural view of a door lock of a knob switch assembly in an open state according to Embodiment 2 of the present invention.
  • FIG. 16 is a schematic perspective structural view of a knob switch assembly in a retracted state according to Embodiment 2 of the present invention.
  • FIG. 17 is a cross-sectional structural view showing a knob switch assembly in a retracted state according to Embodiment 2 of the present invention.
  • FIG. 18 is a schematic perspective structural view of a knob switch assembly in an extended state according to Embodiment 2 of the present invention.
  • FIG. 19 is a cross-sectional structural view showing a knob switch assembly in an extended state according to Embodiment 2 of the present invention.
  • FIG. 20 is a schematic exploded view of a knob switch assembly in a display screen according to Embodiment 2 of the present invention.
  • FIG. 21 is a main control block diagram of an MCU of a knob switch assembly according to Embodiment 2 of the present invention.
  • FIG. 22 is a circuit diagram of a photoelectric switch of a knob switch assembly according to Embodiment 2 of the present invention.
  • FIG. 23 is a circuit diagram of a rotary encoder and a photoelectric switch of a rotary switch assembly according to Embodiment 2 of the present invention.
  • FIG. 24 is a waveform diagram of a rotary encoder and a photoelectric switch of a knob switch assembly in a clockwise rotation according to a second embodiment of the present invention
  • 25 is a waveform diagram of a rotary encoder and a photoelectric switch of a knob switch assembly in a counterclockwise rotation according to a second embodiment of the present invention
  • Fig. 26 is a diagram showing the fire indicating driving circuit of the LED lamp of the induction cooker in the second embodiment of the invention.
  • an induction cooker includes a casing 1, a coil plate 2 and a panel 3.
  • the casing 1 is provided with at least one knob switch assembly 4, and the casing 1 is provided with a printed circuit board 5 thereon.
  • a through hole 11 is formed in the upper opening, and the knob switch assembly 4 is connected to the printed circuit board 5 through the through hole 11 , and a guide rib 6 protruding from the casing 1 is disposed around the through hole 11;
  • the knob switch assembly 4 is equipped with a display screen 7; a protective component 8 is arranged outside the display screen 7.
  • the printed circuit board 5 is a printed circuit board PCB integrated with a microcontroller MCU.
  • the knob switch assembly 4 has a cylindrical or approximately cylindrical structure as a whole.
  • the outer surface of the guide rib 6 is a concave curved surface, and the inner diameter from the inside to the outside is gradually reduced, and the guide rib 6 is centered on the center of the through hole 11 or approximately the through hole 11
  • the center of the circle is the axis.
  • the transitional curved surface between the guide rib 6 and the casing 1 can improve the aesthetics of the kitchen appliance and at the same time facilitate the daily cleaning and cleaning of the user.
  • the arrowed line in FIG. 3 indicates the flow direction of the soup.
  • the soup juice that the pot has accidentally overflowed flows down or around the casing 1
  • the flow to the vicinity of the knob switch assembly 4 is guided.
  • the flow rib 6 is guided to flow in the direction of the outer peripheral surface of the guide rib 6 to prevent the broth from flowing to the inside of the casing 1.
  • the end of the guiding rib 6 is provided with a flange 61 located in the upper half circle or the full circle, and the flange 61 protrudes from the outer surface of the end of the guiding rib 6, so that the soup overflowing the pot flows downward, further The broth is prevented from flowing to the inside of the casing 1.
  • the height of the flange 61 is ⁇ 1 mm, which can not only affect the water retaining effect, but also affect the operation of the knob switch.
  • the display screen 7 is an OLED screen.
  • a screen display area 71 is formed in the display screen 7.
  • the protection component 8 includes a screen shield 81, and a heat-welding post 811 is formed on the back of the screen shield 81.
  • the outer side wall of the screen shield 81 is provided with a plurality of buckles 812 that are in one-to-one correspondence with the buckle holes 434;
  • the cover 81 is fixed to the display holder 43 by heat welding, and a translucent shield display area 813 is formed corresponding to the screen display area 71.
  • the buckle 812 has an arc-shaped strip shape, and the buckle position 812 is adapted to the shape of the cross section of the buckle hole 434.
  • the protection assembly 8 further includes a light blocking sheet 82.
  • the light blocking plate 82 is disposed between the screen shield 81 and the display screen 7, and is directly attached or indirectly fixed to the display screen 7.
  • the light blocking plate 82 corresponds to the screen display area 71 to form a shutter transparent area 821 of an opening structure, and the size of the opening area is L2xH2.
  • One or more limiting holes 822 corresponding to the heat welding columns 811 are disposed around the light shielding region 821 of the shield.
  • the shroud display area 813 and the shroud light transmissive area 821 are slightly larger in size than the screen display area 71.
  • the screen cover 81 covers the surface of the display screen 7 for the display screen 7 to avoid damage caused by external force, and the light blocking plate 82 is disposed between the screen cover 81 and the display screen 7 for auxiliary shading, and the light blocking plate 82 In the case where there is a deviation in the installation of the screen cover 81 and the display screen 7, it is ensured that the display screen 7 does not leak light, and the display effect is ensured.
  • the screen shield 81 is configured to be translucent plastic material, but is not limited to translucent ABS, PC, PMMA, PA, PP, etc.; the display area of the screen display area 71 is L1xH1, and the screen shield 81 is away from the display screen.
  • One side of the 7 is set to a smooth surface effect, and the screen shield 81 is disposed on the side of the display screen 7 as a partial matte partial smoothing effect, and the size of the shield transparent area 821 in the smooth surface structure area is L2xH2.
  • the light blocking sheet 82 is dark, but not limited to black, dark gray, and dark brown PET sheets.
  • the backing of the light blocking sheet 82 is pasted with the screen shield 81 or the display frame 43.
  • One or more limiting holes 822 are disposed on the light blocking plate 82.
  • a corresponding heat welding column 811 is disposed on the screen shield 81, and the light blocking plate 82 is embedded in the matching hole 822 through the heat sealing column 811.
  • the sleeve is disposed between the screen shield 81 and the display screen 7.
  • the screen cover 81 can also be fixed by tape or glue or can be fastened to the display frame bracket 43.
  • the function of the screen cover 81 is to cover the surface of the display screen 7 to prevent the display screen 7 from being affected by external force or impact. malfunction.
  • the screen shield 81 can also be fixed to the display frame bracket 43 by the interference fit between the heat-welding post 811 and the fixing hole of the mounting groove 431, and the screen shield 81 can be prevented from falling off from the display frame bracket 43.
  • a seamless, bolt-free, solderless connection is achieved that improves assembly efficiency and aesthetics after assembly.
  • the light blocking sheet 82 is set as a dark PET material, and the color difference between the display panel 7 and the circumferential plastic part is reduced after the component is installed, and the partially frosted translucent screen shield 6 is mounted on the surface of the OLED screen 4 after being displayed.
  • the outline of the display screen 7 is substantially invisible to the appearance surface, and the area of the display screen 7 is visually enlarged to the contour of the screen shield 81, and the size of the display screen 7 is larger and more overall. Improve product quality and technology.
  • the light blocking plate 82 can block the light of the display screen 7 from being diffused from the position outside the display area to avoid the visual experience of the image product.
  • the size setting of the partial smooth area of the screen shield 81 is slightly larger than the screen display area 71 of the display screen 7 to ensure that even if the screen shield 81 and the display screen 7 are slightly offset, the display screen 7 can be guaranteed to be in the display area under the energized state. It is completely in the transparent position of the smooth surface to ensure clear display.
  • the knob switch assembly 4 includes a sleeve button 41, a rotary encoder 42, a display holder 43, and a control assembly 44.
  • the sleeve button 41, the rotary encoder 42 and the display screen bracket 43 are sleeved coaxially or approximately coaxially from the outside to the inside.
  • the sleeve button 41 is provided with a limiting structure for preventing the sleeve button 41 and the rotary encoder 42 from rotating relative to the circumferential direction, and the limiting structure includes a plurality of positioning structures disposed at one end of the sleeve button 41 adjacent to the printed circuit board 5.
  • the buckle 411 and the plurality of ribs 412 disposed on the inner wall of the sleeve button 41.
  • the sleeve button 41 is provided with a flange on an inner wall remote from one end of the printed circuit board 5 to prevent the display frame holder 43 from coming off.
  • the rotary encoder 42 includes a fixed inner frame 421 and a rotating outer frame 422 having a hollow structure.
  • the fixed inner frame 421 and the rotating outer frame 422 are coaxially sleeved, and one end of the fixed inner frame 421 is fixed to the printed circuit board 5 toward On the outer side, the rotating outer frame 422 is free to rotate about the axis of rotation of the rotary encoder 42.
  • the rotary encoder 42 is provided with a limiting structure for preventing relative circumferential rotation between the rotary encoder 42 and the sleeve button 41 and the display frame bracket 43.
  • the limiting structure includes at least an outer wall disposed on the outer wall of the rotating outer frame 422.
  • the plurality of buckles 411 are inserted in one-to-one correspondence with the outer buckles 4221 for transmitting the rotation motion of the sleeve button 41 to the rotating outer frame 422.
  • the ribs 412 are inserted one-to-one with the outer slots 4222 to prevent circumferential rotation between the ferrule 41 and the rotary encoder 42.
  • one end of the display bracket 43 is inserted into the fixed inner frame 421 , and a mounting slot 431 is disposed on an end surface of the end of the printed circuit board 5 , and at least one limiting rib is disposed on the outer wall. 432 and at least one limit buckle 433, a plurality of snap holes 434 are formed on the outer side of the groove wall of the mounting groove 431.
  • the display frame 43 is made of a dark plastic material such as black, dark gray, dark brown or the like.
  • the mounting slot 431 is used to install the display screen 7, so that the user can conveniently know the current working state of the home appliance when operating the knob component, and does not need to use the line of sight to obtain information in two areas.
  • a bottom hole 4311 is formed at a bottom end of the mounting groove 431, and a symmetric rib 4312 is formed on the left and right sides of the inner wall, and a bottom rib 4313 is formed on the lower side of the inner wall; a left mounting groove 4314 and a right mounting groove 4315 are formed on the two sides of the mounting groove 431, respectively.
  • the lower end is provided with a lower mounting groove 4316, and the left mounting groove 4314, the right mounting groove 4315, and the lower mounting groove 4316 are each formed with a fixing hole 4317.
  • the limiting rib 432 is matched with the limiting slot 4212 in one-to-one correspondence; the limiting buckle 433 and the inner buckle 4211 are matched in one-to-one correspondence, and are used for limiting the display bracket 43 to rotate along the axis to fix the display bracket 43 to the circumferential direction. Fixed angle position.
  • the display stand 43 is provided with one end of the display screen 7 provided with at least one for the heat welding column to pass through the through hole.
  • the control unit 44 includes a switch button 441a disposed on a side of the printed circuit board 5 facing outward, and is disposed on an end surface of the display holder 43 facing the end of the printed circuit board 5 and the end surface.
  • the elastic member 442a is U-shaped, and the two ends are respectively connected to the display screen
  • the support rib 443a is fixed to the elastic member 442a and supported on the surface of the printed circuit board 5.
  • the elastic member 442a is a spring or an elastic plastic rib.
  • the elastic deformation of the elastic member 442a absorbs the displacement amount when the user presses the display holder 43, and the elastic member 442a rebounds to restore the display holder 43 to the initial position when the user releases the hand to ensure that the display screen 7 does not follow the sleeve button 41. Turning, the display effect can be maintained at the best position of the user's vision, and the user experience is better.
  • the flange piece 66 is driven to operate the induction cooker by touching the switch button 441a.
  • the control assembly 44 includes a buckle 441b, a door lock 442b disposed in the induction cooker, a return spring 443b, and an annular rib 444b formed on the inner wall of the display bracket 43.
  • a through hole 51 is formed in the middle of 5.
  • the door lock 442b includes a mounting plate 442b1 and a lock body 442b2 connected to the mounting plate 442b1.
  • the lock body 442b2 is provided with a "Y" type lock 442b3.
  • the buckle 441b has a "T” shape and is fixed to the display frame bracket 43.
  • the inner side wall of the 43 is caught by the annular rib 444b.
  • the buckle 441b is disposed at one end of the display bracket 43 near the door lock 442b to fasten or disengage the buckle 441b and the door lock 442b by pressing the knob switch assembly 4, correspondingly, the knob switch assembly 4 is retracted or extended. And when the knob switch assembly 4 is in the extended state, the knob switch assembly 4 is rotated to input a control signal for adjusting the home appliance.
  • the action of extending and retracting the knob switch assembly in this embodiment is as follows: the normal state of the induction cooker is the retracted state of the knob switch assembly, as shown in FIGS. 16 and 17, at this time, the "Y" lock of the door lock 442b.
  • the buckle 442b3 is engaged with the "T" type buckle 441b connected to the display bracket 43, in this state, the user presses the knob switch assembly, and the "Y" type lock 442b3 of the door lock 442b becomes open, as shown in the figure. 18 and FIG. 19, at this time, the "T" type buckle 441b is no longer buckled, and the display bracket 43 is ejected outward by the return spring 443b, thereby driving the entire knob switch assembly to be ejected outward.
  • the sleeve button 41 is higher than the outer surface of the household appliance, and the user can control the operation of the induction cooker by rotating the sleeve button 41 to drive the rotary encoder 42.
  • the user pushes the knob switch assembly to move inward, and when the "T" type buckle 441b that moves to the end of the display holder 43 touches the "Y" type lock 442b3 of the door lock 442b, the "Y" type lock The 442b3 is again in the engaged state, at which time the "T" type buckle 441b and the "Y” type lock 442b3 are fastened again, and the knob switch assembly is retracted again.
  • the control unit 44 in this embodiment further includes a signal unit for receiving a signal of the signal transmitting unit when the knob switch assembly is extended under pressing, and adjusting the induction cooker by turning the knob switch assembly.
  • the signal unit includes a signal transmitting unit, a signal receiving unit, and a signal shielding unit, and when the rotating component is in an extended state, the signal shielding unit shields a signal between the signal receiving unit and the signal transmitting unit to A control signal for adjusting the home appliance is input by rotating the rotating assembly.
  • the signal unit includes a combination of a photoelectric switch 445b and a light shielding sheet 446b, a combination of a reed switch and a magnet, and a combination of a Hall element and a magnet.
  • the photoelectric switch 445b or the light shielding sheet 446b is provided on one side of the printed circuit board 5 facing the rotary encoder 42, and the light shielding sheet 446b or the photoelectric switch 445b is disposed on the sleeve button 41.
  • the photoelectric switch 445b and the light shielding sheet 446b serves as an example.
  • the signal transmitting end serves as a signal transmitting unit
  • the signal receiving end serves as a signal receiving unit
  • the light shielding sheet 446b serves as a signal shielding unit.
  • the photoelectric switch 445b or the light shielding sheet 446b is disposed on the first board surface 35 of the printed circuit board 34
  • the light shielding sheet 446b or the photoelectric switch is disposed on the knob switch assembly 4 in the embodiment. Or on a household appliance.
  • the characteristic of the photoelectric switch 445b is that the level of the signal transmitting end is switched between a low level and a high level in a state where there is no light shielding between the signal transmitting end and the signal receiving end.
  • the photoelectric switch 445b is away from the visor 446b, and continues to be shielded between the signal receiving end and the signal transmitting end of the photoelectric switch 445b as shown in FIG.
  • the state of the induction cooker is set to In the standby state, if the knob switch assembly 4 is turned at this time, the household appliance will not receive the signal; when the rotary encoder 32 is in the extended state, continue to be combined with the shutter 446b inserted into the notch position of the photoelectric switch 445b, as shown in FIG. In the state, the state of the household appliance is set to the working state. At this time, the knob switch assembly is rotated, and the induction cooker can perform related operations such as adjusting power or adjusting time according to the rotational position of the rotary encoder 42.
  • the OLED screen is a dot matrix type, and different information can be displayed by the MCU outputting different driving signals, which is more flexible than the conventional digital tube display scheme.
  • the screen of the OLED display screen 7 occupies a smaller area, thereby saving space.
  • the MCU of the printed circuit board 5 integrated with the microcontroller MCU is respectively connected to the photoelectric switch 445b, the rotary encoder 42, the OLED display 7 and the LED lamp signal, and the rotary switch assembly 4 passes through the casing 1
  • the door lock 442b is engaged or disengaged from the lock 442b3, correspondingly, the rotary switch assembly 4 is retracted or extended, and in the extended state, the rotary switch assembly 4 is rotated to adjust the induction cooker. Power and time.
  • the operating method of the induction cooker of the present invention is as follows: wherein the rotary encoder 42 is described by taking the Shengwei electronic hollow incremental type EC350202 as an example.
  • the knob 41 If the knob 41 is turned clockwise, the power of the MCU driving IGBT module controls the coil disk to gradually increase until the maximum power set by the coil disk, and the number of LED lights is gradually increased (or the brightness is gradually increased) until all points Bright (the number of LED lights in this embodiment is set to 9). If the sleeve button 41 is rotated counterclockwise, the power of the MCU driving the IGBT control coil disk is gradually reduced until the coil disk is not turned on, and the number of LED lamps is gradually reduced (or the brightness is gradually weakened) until only one LED is lit.
  • the knob 41 If the knob 41 is turned clockwise, the time displayed by the MCU driving the OLED display is adjusted in the increasing direction, and the heating time of the default setting is extended; if it is rotated counterclockwise
  • the button 41 the MCU drives the OLED display to display the time in the decreasing direction, and shortens the heating time of the default setting; t>t2, if the MCU does not detect the pulse output by the rotary encoder 42, determine the induction cooker In the standby state, in this state, the LED light flashes, prompting the user that the induction cooker is in the standby state.
  • the built-in timer of the MCU restarts counting t1, when t ⁇ t1 (30s ⁇ t1 ⁇ 90s), the MCU drives the LED.
  • the MCU determines whether the knob switch is in a retracted state or an extended state by detecting whether there is an obstruction at the slot of the photoelectric switch 445b. As shown in FIG. 22, the MCU passes the OUT end of the photoelectric switch 445b of the slot type. The level state determines whether the knob switch is extended or retracted, that is, when there is an obstruction at the slot, the light is isolated, and the OUT terminal outputs a high level. When the obstruction moves out of the slot, the light can pass, OUT The terminal outputs a low level. The MCU determines whether the knob switch is rotated clockwise or counterclockwise by the rotary encoder 42. As shown in FIGS.
  • the MCU passes the A of the rotary encoder 42.
  • the waveform changes of the point and the point B to determine whether it is clockwise or counterclockwise, thereby adjusting the size of the firepower or the length of time, indicating the firepower with an LED light, and displaying the firepower on the OLED display 8 in a flame shape. Display the time in numbers.
  • the driving circuit of the LED fire indicating is shown in Fig. 26.
  • each LED lamp is driven by an NPN transistor.
  • the MCU assigns an IO driver to each LED lamp. When the IO output is high, the LED light is on. When the IO output is low, the LED light is off, so the number of LED lights and LED points can be flexibly controlled. Bright brightness.
  • the invention sets the knob switch assembly to a telescopic structure and sets a signal unit in the knob switch assembly.
  • the knob switch assembly When used, the knob switch assembly is automatically popped up when the button is used, and the user can adjust the power of the induction cooker through the knob switch assembly. And the heating time, and after pressing the knob switch assembly, the internal parts of the appliance will be retracted, prolonging the service life and facilitating the user's cleaning.
  • the invention integrates the three kinds of signal receiving devices and signal feedback devices of the display screen, the rotary encoder and the control component in the knob switch assembly, thereby effectively saving the space occupied by the operation display interface occupying the induction cooker, and the product can be further miniaturized and the cost is lower. .
  • the invention adopts a guide rib around the knob switch assembly of the casing, so that when the soup overflows from the casing accidentally or downwardly along the casing, the flow to the knob switch assembly is guided by the flow guiding rib.
  • the flow flows in the direction of the outer peripheral surface of the guide rib to prevent the broth from flowing to the inside of the casing.
  • the invention realizes the fixing of the display screen through the mounting groove on the display bracket, realizes the protection of the display screen through the screen shield and the light blocking sheet, and ensures the display effect of the OLED screen;
  • the display area of the protection component is slightly larger than the display screen by the protection component The display area is guaranteed to be clear; the protection assembly and the display bracket are fixed by the heat welding column and the snap hole to ensure the stability of the protection component.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Textile Engineering (AREA)
  • Induction Heating Cooking Devices (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Cookers (AREA)
  • Push-Button Switches (AREA)

Abstract

一种电磁炉的旋钮结构，包括设置于机壳(1)的至少一个旋钮开关组件(4)和设置于机壳(1)内的印制电路板(5)，旋钮开关组件(4)穿过机壳(1)上开设的通孔(11)与印制电路板(5)连接，通孔(11)周围设有一圈凸出于机壳(1)的导流筋(6)；旋钮开关组件(4)上装配有显示屏(7)；显示屏(7)外设有保护组件(8)；旋钮开关组件(4)包括套钮(41)、旋转编码器(42)、显示屏支架(43)和控制组件(44)。该旋钮结构采用伸缩结构，并具有信号接受和反馈装置，且在旋钮开关组件(4)四周设置防水结构，延长了使用寿命，方便用户清洁，节省了操作显示界面占据电磁炉的空间，成本更低。

Description

一种电磁炉的旋钮结构 技术领域
本发明属于用电能加热的炉或灶的控制装置的配置领域，具体涉及一种电磁炉的旋钮结构。
背景技术
电磁炉又称为电磁灶，其利用交变电流通过线圈产生方向不断改变的交变磁场，处于交变磁场中的导体的内部将会出现涡旋电流，涡旋电流的焦耳热效应使导体升温，从而实现加热。
电磁炉通常包括以下元器件，用于承载锅具的面板、构成主电流回路的高压主基板、用于电脑控制功能的低压主基板、显示工作状态和传递操作指令LED线路板、将高频交变电流转换成交变磁场的线圈盘、通过低电流信号控制大电流的通断的IGBT、将交流电源转换为直流电源的桥式整流块、调节电磁炉的功率大小的操控组件等。
鉴于电磁炉的上述原理，并且具备加热速度快、节能环保、容易清洁、精确温控等诸多优点而备受大众喜爱。
电磁炉使用过程中，一般是通过功率操控组件来调节电磁炉的功率大小。目前，市面上所售电磁炉操控方式大都采用按键式，分为触摸按键和机械按键两种。其中触摸按键产品在使用过程中经常因为操作部位粘有菜汤或水等物质，导致操作信号无法被主控芯片接受操作失灵；而机械按键则经常因面板上设置的PET弹性鼓包在长期使用过程中因机械疲劳以及油污腐蚀造成按键破裂或失效。
而如果把按键操作更改为内置旋转编码器的旋钮操作方式，但由此又带来了新的问题：因为旋钮的突兀，使用户在清洁的时候会因为凸出的旋钮结构而更加麻烦，且操作显示界面大，提高了成本。
同时，将按键操作更改为内置旋转编码器的旋钮操作方式，电磁炉的机壳上需开设用于旋钮开关穿过的通孔，为了实现旋转操作，通孔的内壁和旋钮开关的外壁之间需存在有间隙，如果电磁炉在烹饪过程中的汤汁或油沿旋钮开关的周圈间隙流入机壳内，容易引起机壳内部发生短路或其他故障。
随着科技的进步，智能厨电逐步走入人们的日常生活中，并且由于智能厨电操作简单、预置内容丰富、烹调智能化、外观简洁美观、烹调时间和烹调状 态能够有效获取而备受亲赖。电磁炉作为代表性的厨电产品很多都开始逐步使用OLED器件作为产品功能显示单元，体现产品高科技水平。为了实现OLED屏幕与产品外观的一致性以及对OLED屏幕本身的保护，行业内基本采用在OLED屏幕上设置一片透明挡罩，在挡罩与OLED屏幕非显示区域采用喷涂或粘贴非透明涂料或膜材的方式把屏幕内部非外观区域进行遮挡，提升产品外观档次。但无论是局部喷涂还是局部粘贴的工艺方案都对加工工艺精度要求较高，且成本也居高不下。
发明内容
本发明为解决现有技术存在的问题而提出，其目的是提供一种电磁炉。
本发明的技术方案是：
一种电磁炉的旋钮结构，包括设置于机壳的至少一个旋钮开关组件和设置于机壳内的印制电路板，旋钮开关组件穿过机壳上开设的通孔与印制电路板连接；
所述通孔周围设有一圈凸出于机壳的导流筋；
所述旋钮开关组件上装配有显示屏；
所述显示屏外设有保护组件；
所述旋钮开关组件包括套钮、旋转编码器、显示屏支架和控制组件。
所述套钮、旋转编码器和显示屏支架从外至内依次沿轴线装配。
所述套钮上设有用于防止套钮和旋转编码器相对周向转动的限位结构，所述限位结构包括设置于套钮靠近印制电路板的一端设置的多个插扣和设置于套钮内壁的多个凸筋。
所述套钮在远离印制电路板一端的内壁设有凸缘。
所述旋转编码器包括具有中空结构的固定内架和转动外架，固定内架和转动外架同轴线套接，固定内架的一端固定于印制电路板朝外的一侧。
所述转动外架外壁设置有至少一个外扣位和至少一个外插槽，固定内架内壁上设置有至少一个内扣位和一个限位槽。
所述显示屏支架一端插接于固定内架内，其远离印制电路板的一端端面设有安装槽，其外壁上设有至少一个限位筋和至少一个限位卡扣。
所述安装槽的槽壁外侧形成多个卡扣孔，安装槽底端形成线孔，其内壁对称设置一组卡筋，其内壁下侧形成底筋；安装槽两侧分别形成左安装槽、右安 装槽，所述左安装槽、右安装槽中均形成固定孔。
所述控制组件包括设置于印制电路板朝外的一面的开关按键，设置于显示屏支架朝向印制电路板的一端端面上且与该端面平行的凸缘片，以及设置于显示屏支架靠近印制电路板的一端的至少一个弹性元件和至少一个支撑筋；弹性元件两端分别连接于显示屏支架上，支撑筋固定于弹性元件上，并支撑在印制电路板的表面。
所述控制组件包括卡扣、设于电磁炉内的门锁、复位弹簧以及形成于显示屏支架内壁上的环形筋，门锁包括安装板和连接到安装板上的锁体，锁体内设有锁扣，卡扣固定于显示屏支架的外侧壁上，并穿过印制电路板的通孔，与锁扣配合，复位弹簧的一端固定于安装板的板面上，另一端固定于显示屏支架的内侧壁上，并通过环形筋卡住。
所述控制组件还包括信号单元，所述信号单元包括信号发射单元、信号接收单元和信号屏蔽单元，且当所述复位弹簧呈伸展状态时，所述信号屏蔽单元屏蔽所述信号接收单元和信号发射单元之间的信号，以通过转动所述旋钮开关组件输入调节所述家用电器的控制信号。
所述信号单元包括光电开关和遮光片的组合、磁簧开关和磁铁的组合以及霍尔元件与磁铁的组合。
所述光电开关或遮光片设于印制电路板的朝向旋转编码器的一侧面上，遮光片或光电开关设置于套钮上。
所述导流筋的外表面为凹弧面，且从里向外的内径逐渐缩小。
所述导流筋的末端设有位于上半圈或整圈的凸缘，凸缘凸出于导流筋末端的外表面。
所述凸缘的高度≥1mm。
所述显示屏为OLED屏幕。
所述显示屏中形成屏幕显示区。
所述保护组件包括屏幕护罩，屏幕护罩背部形成热焊柱，屏幕护罩外侧壁上设有多个与卡扣孔一一对应卡接的扣位；屏幕护罩通过热焊固定于显示屏支架上，其对应显示屏处形成半透明护罩显示区域。
所述屏幕护罩的前端形成光面，后端形成局部磨砂局部光面。
所述保护组件还包括挡光片。
所述挡光片设置于屏幕护罩与显示屏之间，其直接贴合或间接固定在显示屏上。
所述挡光片对应屏幕显示区形成开孔结构的挡罩透光区，挡罩透光区四周设置一个或多个与热焊柱对应的限位孔。
本发明的有益效果是：
本发明通过将旋钮开关组件设置成可以伸缩的结构，并在旋钮开关组件内设置信号单元，使用时只需按一下旋钮开关组件就会自动弹出，用户可以通过旋钮开关组件来调节电磁炉的功率大小及加热时间，且使用完毕之后再按一下旋钮开关组件会收回电器内部，延长了使用寿命，且方便用户清洁。
本发明通过在旋钮开关组件中集成显示屏、旋转编码器以及控制组件三种信号接受装置和信号反馈装置，有效地节省了操作显示界面占据电磁炉的空间，可以使产品更小型化，成本更低。
本发明通过在机壳的旋钮开关组件的四周设置导流筋，使锅具不小心溢出的汤汁沿机壳往下或往四周流动的时候，流到旋钮开关组件附近会被导流筋导流而朝导流筋外周面的方向流动，以防止汤汁流到机壳的内部。
本发明通过显示屏支架上的安装槽实现对显示屏的固定，通过屏幕护罩和挡光片实现对显示屏的保护，且保证OLED屏幕的显示效果；通过保护组件显示区域略大于显示屏的显示区保证显示清晰；通过热焊柱和卡扣孔实现保护组件与显示屏支架的固定，保证保护组件的稳固性。
附图说明
图1是本发明的剖视图；
图2是本发明的分解结构示意图；
图3是本发明的整体结构示意图；
图4是图1中I部分的放大结构示意图；
图5是本发明去保护组件的主视图；
图6是本发明中屏幕护罩的结构示意图；
图7是本发明中挡光片的结构示意图；
图8是本发明中除去控制组件的旋钮开关组件的结构示意图；
图9是本发明中显示屏支架的结构示意图；
图10是本发明实施例一中显示屏的装配分解图；
图11是本发明实施例一中旋钮开关组件和印制电路板的装配分解图；
图12为本发明实施例二中的旋钮开关组件的爆炸示意图；
图13为本发明实施例二中显示屏支架的俯视图；
图14为本发明实施例二中的旋钮开关组件的门锁在扣合状态下的立体结构示意图；
图15为本发明实施例二中的旋钮开关组件的门锁在打开状态下的立体结构示意图；
图16为本发明实施例二中的旋钮开关组件在缩回状态下的立体结构示意图；
图17为本发明实施例二中的旋钮开关组件在缩回状态下的剖视结构示意图；
图18为本发明实施例二中的旋钮开关组件在伸出状态下的立体结构示意图；
图19为本发明实施例二中的旋钮开关组件在伸出状态下的剖视结构示意图；
图20为本发明实施例二中的旋钮开关组件在设置显示屏的爆炸示意图；
图21为本发明实施例二中的旋钮开关组件的MCU的主控制方框图；
图22为本发明实施例二中的旋钮开关组件的光电开关的电路图；
图23为本发明实施例二中的旋钮开关组件的旋转编码器和光电开关转动时的电路图；
图24为本发明实施例二中的旋钮开关组件的旋转编码器和光电开关顺时针转动时的波形图；
图25为本发明实施例二中的旋钮开关组件的旋转编码器和光电开关逆时针转动时的波形图；
图26为发明实施例二中的电磁炉的LED灯的火力指示驱动电路。
其中：
1机壳         2线圈盘
3面板         4旋钮开关组件
5印制电路板      6导流筋
7显示屏        8保护组件
11通孔        41套钮
42旋转编码器      43显示屏支架
44控制组件      411插扣
412凸筋        421固定内架
422转动外架      4211内扣位
4212限位槽       4221外扣位
4222外插槽       431安装槽
432限位筋       433限位卡扣
434卡扣孔       4311线孔
4312卡筋        4313底筋
4314左安装槽      4315右安装槽
4316下安装槽      4317固定孔
441a开关按键      442a弹性元件
443a支撑筋       444a凸缘片
441b卡扣       442b门锁
443b复位弹簧     444b环形筋
442b1安装板      442b2锁体
442b3锁扣       445b光电开关
446b遮光片        61凸缘
71屏幕显示区      81屏幕护罩
811热焊柱       812扣位
813护罩显示区域     82挡光片
821挡罩透光区     822限位孔
51通孔。
具体实施方式
以下，参照附图和实施例对本发明进行详细说明：
如图1～3所示，一种电磁炉，包括机壳1、线圈盘2和面板3，机壳1设有至少一个旋钮开关组件4，机壳1内设有印制电路板5，其上上开设有通孔11，旋钮开关组件4穿过通孔11与印制电路板5连接，所述通孔11周围设有一圈凸出于机壳1的导流筋6；所述旋钮开关组件4上装配有显示屏7；所述显示屏7外 设有保护组件8。所述印制电路板5为集成有微控制器MCU的印制电路板PCB。所述旋钮开关组件4整体呈圆柱或近似圆柱结构。
如图3、4所示，所述导流筋6的外表面为凹弧面，且从里向外的内径逐渐缩小，导流筋6以通孔11的圆心为轴心或近似通孔11圆心为轴心。导流筋6和机壳1之间的过渡弧形面能够提高厨电美观程度，同时，方便使用者日常的清洁清理。
具体结合图3，图3中的箭头线表示汤汁的流动方向，当锅具不小心溢出的汤汁沿机壳1往下或往四周流动的时候，流到旋钮开关组件4附近会被导流筋6导流而朝导流筋6外周面的方向流动，以防止汤汁流到机壳1的内部。
所述导流筋6的末端设有位于上半圈或整圈的凸缘61，凸缘61凸出于导流筋6末端的外表面，使溢出锅具的汤汁向下流动，更进一步避免了汤汁流到机壳1的内部。凸缘61的高度≥1mm，既能起到进一步挡水的效果，且不影响对旋钮开关的操作。
如图3、5～7所示，所述显示屏7为OLED屏幕。
所述显示屏7中形成屏幕显示区71。
所述保护组件8包括屏幕护罩81，屏幕护罩81背部形成热焊柱811，屏幕护罩81外侧壁上设有多个与卡扣孔434一一对应卡接的扣位812；屏幕护罩81通过热焊固定于显示屏支架43上，其对应屏幕显示区71处形成半透明护罩显示区域813。扣位812呈弧形的长条状，扣位812与卡扣孔434的截面的形状适配。
所述保护组件8还包括挡光片82。
所述挡光片82设置于屏幕护罩81与显示屏7之间，其直接贴合或间接固定在显示屏7上。
所述挡光片82对应屏幕显示区71形成开孔结构的挡罩透光区821，开孔区域尺寸为L2ⅹH2。挡罩透光区821四周设置一个或多个与热焊柱811对应的限位孔822。
所述护罩显示区域813和挡罩透光区821的尺寸略大于屏幕显示区71。
屏幕护罩81覆盖于显示屏7表面，用于显示屏7避免外力碰触造成屏幕损坏，挡光片82设置在屏幕护罩81与显示屏7之间，用于辅助遮光，挡光片 82能够在屏幕护罩81、显示屏7安装存在偏差的情况下，保证显示屏7不出现漏光现象，保证其显示效果。
所述屏幕护罩81设置为半透明的塑料材质可以但不限于半透明ABS、PC、PMMA、PA、PP等；所述屏幕显示区71的显示区域尺寸为L1ⅹH1，屏幕护罩81远离显示屏7的一面设置为光面效果，屏幕护罩81正对显示屏7的一面设置为局部磨砂局部光面效果，所述光面结构区域中挡罩透光区821尺寸为L2ⅹH2。
所述挡光片82为深色可以但不限于黑色、深灰色、深棕色的PET片，挡光片82背部设置背胶与屏幕护罩81或显示屏支架43粘贴。
所述挡光片82上设置一个或多个限位孔822，与之对应在屏幕护罩81设置相应的热焊柱811，挡光片82通过热焊柱811与限位孔822的配合嵌套设置在屏幕护罩81与显示屏7之间。
屏幕护罩81也可以采用胶带或胶水固定或者是设置卡扣扣合在显示屏支架43上，屏幕护罩81的功能是包覆在显示屏7表面，以防止显示屏7受外力或冲击引起故障。
屏幕护罩81还可通过热焊柱811与安装槽431的固定孔之间的过盈紧配合实现与显示屏支架43的固定，能够避免屏幕护罩81从显示屏支架43中脱落，同时，实现一种无缝无螺栓无焊接的连接方式，提高了装配效率以及装配后的美观程度。
其中，L1+5mm≥L2≥L1+0.5mm，H1+5mm≥H2≥L2+0.5mm。
所述挡光片82设置为深色PET材质，在组件安装完成后降低显示屏7与周圈塑料件的色差，在OLED屏幕4表面安装局部磨砂处理的半透明屏幕挡罩6后，在显示屏7不通电显示的状态下，外观面基本看不到显示屏7的轮廓，视觉上显示屏7的区域会有一种扩大至屏幕护罩81轮廓的效果，感觉显示屏7尺寸更大更整体，提升产品档次和科技感。
在通电状态，挡光片82能挡住显示屏7光线从显示区域以外的位置漫反射出来，避免影像产品视觉体验。
屏幕护罩81局部光面区域的尺寸设置稍微比显示屏7的屏幕显示区71大有效保证即使屏幕护罩81和显示屏7安装有少许偏差也能保证显示屏7在通 电状态下显示区域内完全在光面透光位置，保证显示效果清晰。
如图8所示，所述旋钮开关组件4包括套钮41、旋转编码器42、显示屏支架43和控制组件44。所述套钮41、旋转编码器42和显示屏支架43从外至内依次同轴线或近似同轴线套设。
所述套钮41上设有用于防止套钮41和旋转编码器42相对周向转动的限位结构，所述限位结构包括设置于套钮41靠近印制电路板5的一端设置的多个插扣411和设置于套钮41内壁的多个凸筋412。
所述套钮41在远离印制电路板5一端的内壁设有凸缘，以防止显示屏支架43脱离出来。
所述旋转编码器42包括具有中空结构的固定内架421和转动外架422，固定内架421和转动外架422同轴线套接，固定内架421的一端固定于印制电路板5朝外的一侧，转动外架422可以以旋转编码器42的轴线为旋转中心自由旋转。
所述旋转编码器42上设有用于防止旋转编码器42和套钮41、显示屏支架43之间相对周向转动的限位结构，所述限位结构包括设置于转动外架422外壁的至少一个外扣位4221和至少一个外插槽4222，以及设置于固定内架421内壁上的至少一个内扣位4211和一个限位槽4212。
多个插扣411与外扣位4221一一对应插接，用于将套钮41的旋转动作传递给转动外架422。凸筋412与外插槽4222一一对应插接，可以防止套钮41与旋转编码器42之间的周向转动。
如图8、9所示，所述显示屏支架43一端插接于固定内架421内，其远离印制电路板5的一端端面设有安装槽431，其外壁上设有至少一个限位筋432和至少一个限位卡扣433，安装槽431的槽壁外侧形成多个卡扣孔434，所述显示屏支架43为深色塑料材质，如黑色、深灰色、深棕色等。
所述安装槽431用于安装显示屏7，使用户可以在操作旋钮组件时即可很方便地获知家用电器当前的工作状态，无需用视线分两个区域去获取信息。
所述安装槽431底端形成线孔4311，其内壁左右两侧形成对称的卡筋4312，其内壁下侧形成底筋4313；安装槽431两侧分别形成左安装槽4314、右安装槽4315，下端设置下安装槽4316，所述左安装槽4314、右安装槽4315和 下安装槽4316中均形成固定孔4317。
限位筋432与限位槽4212一一对应配合；限位卡扣433和内扣位4211一一对应配合，用于限制显示屏支架43沿轴线转动，以将显示屏支架43固定为圆周方向固定角度的位置。
显示屏支架43设置显示屏7的一端设有至少一个用于热焊柱穿过通孔。
实施例一
如图10、11所示，所述控制组件44包括设置于印制电路板5朝外的一面的开关按键441a，设置于显示屏支架43朝向印制电路板5的一端的端面上与该端面平行的凸缘片444a,以及设置于显示屏支架43靠近印制电路板5的一端的至少一个弹性元件442a和至少一个支撑筋443a；弹性元件442a呈U形，且两端分别连接于显示屏支架43上，支撑筋443a固定于弹性元件442a上，并支撑在印制电路板5的表面。
弹性元件442a为弹簧或弹性塑料筋位。通过弹性元件442a的弹性变形吸收用户按压显示屏支架43时的位移量，当用户松手后弹性元件442a回弹将显示屏支架43复原到初始位置，以确保显示屏7不会跟随套钮41一起转动，显示效果可以一直保持在用户视觉最佳的位置，用户体验感更好。
通过按压显示屏支架43，带动凸缘片66触动开关按键441a操作电磁炉。
实施例二
如图12～20所示，所述控制组件44包括卡扣441b、设于电磁炉内的门锁442b、复位弹簧443b以及形成于显示屏支架43内壁上的环形筋444b，此技术方案中电路板5中间形成通孔51。
所述门锁442b包括安装板442b1和连接到安装板442b1上的锁体442b2，锁体442b2内设有“Y”型锁扣442b3，卡扣441b呈“T”型，固定于显示屏支架43的外侧壁上，并穿过印制电路板5的通孔51，与“Y”型锁扣442b3配合，复位弹簧443b的一端固定于安装板442b1的板面上，另一端固定于显示屏支架43的内侧壁上，并通过环形筋444b卡住。
卡扣441b设于显示屏支架43靠近门锁442b的一端，以通过按压旋钮开关组件4使卡扣441b与门锁442b扣合或脱离，对应使旋钮开关组件4呈缩回或伸出状态，并在旋钮开关组件4呈伸出状态时，转动旋钮开关组件4以输入调节 家用电器的控制信号。
本实施例中旋钮开关组件的伸出和缩回的动作如下：电磁炉的正常状态为旋钮开关组件的缩回状态，如图16和图17所示，此时门锁442b的“Y”型锁扣442b3与连接于显示屏支架43上的“T”型的卡扣441b扣合，在此状态下用户按压旋钮开关组件，门锁442b的“Y”型锁扣442b3变成打开状态，如图18和图19所示，此时“T”型的卡扣441b不再被扣住，显示屏支架43在复位弹簧443b的作用下往外弹出，从而带动整个旋钮开关组件往外弹出。此状态下套钮41高出家用电器的外表面，用户可以通过转动套钮41来驱动旋转编码器42动作来对电磁炉进行操作控制。在此状态下，用户推动旋钮开关组件往里运动，当运动到显示屏支架43末端的“T”型的卡扣441b触动门锁442b的“Y”型锁扣442b3，“Y”型锁扣442b3又变成扣合状态，此时“T”型的卡扣441b和“Y”型锁扣442b3再次扣合，旋钮开关组件重新处于缩回状态。
本实施例中控制组件44还包括信号单元，用于当旋钮开关组件在按压下呈伸出状态时，信号接收单元接收信号发射单元的信号，并通过转动旋钮开关组件以调节电磁炉。
所述信号单元包括信号发射单元、信号接收单元和信号屏蔽单元，且当所述旋转组件呈伸出状态时，所述信号屏蔽单元屏蔽所述信号接收单元和信号发射单元之间的信号，以通过转动所述旋转组件输入调节所述家用电器的控制信号。
所述信号单元包括光电开关445b和遮光片446b的组合、磁簧开关和磁铁的组合以及霍尔元件与磁铁的组合。
光电开关445b或遮光片446b设于印制电路板5的朝向旋转编码器42的一侧面上，遮光片446b或光电开关445b设置于套钮41上。
本实施例中仅以光电开关445b和遮光片446b的组合为例进行说明，其中，信号发射端作为信号发射单元，信号接收端作为信号接收单元，遮光片446b作为信号屏蔽单元，具体请参见图16和图18，光电开关445b或遮光片446b设于印制电路板34的第一板面35上，遮光片446b或光电开关设于旋钮开关组件4本实施例中是设于套钮31上或家用电器上。光电开关445b的特性是，信号发射端和信号接收端之间有无遮光屏蔽的状态下，信号发射端的电平会在低电平和 高电平之间转换。当旋转编码器32处于缩回状态时，光电开关445b远离遮光片446b，继续结合图16所示，光电开关445b的信号接收端和信号发射端之间无障碍屏蔽，此状态下电磁炉状态设置为待机状态，如果此时转动旋钮开关组件4，家用电器也不会接受信号；当旋转编码器32处于伸出状态时，继续结合图18所示，遮光片446b插入光电开关445b的缺口位置，此状态下家用电器的状态设置为工作状态，此时转动旋钮开关组件，电磁炉可以根据旋转编码器42的旋转位置来进行相关的操作如调整功率或调整时间。
OLED屏幕为点阵式，可以通过MCU输出不同的驱动信号显示不同的信息，比传统的用数码管显示的方案更加灵活，另外，OLED显示屏7的屏幕占据的面积也更小，因此可节省空间。
如图21所示，集成有微控制器MCU的印制电路板5的MCU分别与光电开关445b、旋转编码器42、OLED显示屏7和LED灯信号连接，旋转开关组件4穿过机壳1的通孔11后在按压下使门锁442b与锁扣442b3扣合或脱离，对应使旋转开关组件4呈缩回或伸出状态，且在伸出状态下通过转动旋转开关组件4以调节电磁炉的功率和时间。
本发明电磁炉的操作方法如下：其中旋转编码器42以昇威电子中空增量型EC350202为例进行说明。
1)电磁炉刚通电时，旋钮开关组件4的旋转编码器42处于缩回状态，光电开关445b的信号接收端和信号发射端之间无障碍屏蔽，此时光电开关输出高电平。光电开关输出的信号经MCU处理，MCU驱动LED灯闪烁，提示用户电磁炉处于待机状态。同时，MCU内置的计时器开始计时t1，当t≥t1时(30s≤t1≤90s)，MCU驱动LED熄灭，以降低电磁炉的待机功耗。在待机状态，此时如果转动套钮41，旋转编码器42随之一起旋转时，MCU不接受信号，MCU驱动IGBT模块将线圈盘置于不开通状态。
2)当用户按下套钮41，以使旋转编码器42处于伸出状态(也就是旋钮开关组件4处于伸出状态)时，光电开关445b的缺口位置被遮光片446b挡住，光电开关445b的信号接收端和信号发射端之间被遮光片446b挡住，此时光电开关445b输出低电平，此时通过转动套钮41使旋转编码器42旋转时，旋转编码器42输出的脉冲信号经MCU处理，MCU驱动LED灯常亮，以提示用户电磁 炉处于工作状态。在电磁炉处于工作状态下，此时可通过转动旋转组件来输入调节电磁炉的控制信号，具体包括：
A.如果是顺时针转动套钮41，MCU驱动IGBT模块控制线圈盘的功率逐渐增大直至线圈盘设定的最大功率，而LED灯点亮的数量逐渐增多(或亮度逐渐增强)直至全部点亮(本实施例中LED灯数量设置为9个)。如果逆时针转动套钮41，MCU驱动IGBT控制线圈盘的功率逐渐减小直至线圈盘不开通功率为零，而LED灯点亮的数量逐渐减少(或亮度逐渐削弱)直至只有一个LED灯亮。
B.当用户按下套钮41使旋转编码器42处于缩回状态(也就是旋钮开关组件4处于缩回状态)时，光电开关445b重新远离遮光片446b，光电开关445b的信号接收端和信号发射端之间无障碍屏蔽，此时光电开关445b输出高电平。与此同时，MCU内置的计时器开始计时t2，当t≤t2(本实施例中10s≤t2≤40s)时，如果MCU检测到有旋转编码器42输出的脉冲，则MCU处理此脉冲信号以对电磁炉的工作设定时间进行调整：t≤t2，如果顺时针转动套钮41，MCU驱动OLED显示屏显示的时间往增加的方向调整，对默认设定的加热时间进行延长；如果逆时针转动套钮41，MCU驱动OLED显示屏显示的时间往减小的方向调整，对默认设定的加热时间进行缩短；t＞t2,如果MCU未检测到有旋转编码器42输出的脉冲时，判定电磁炉为待机状态，此状态下，LED灯闪烁，提示用户电磁炉处于待机状态，在待机状态下，MCU内置的计时器重新开始计时t1，当t≥t1时(30s≤t1≤90s)，MCU驱动LED置于熄灭状态，降低产品待机功耗；在待机状态，此时如果转动套钮41，旋转编码器42随之一起旋转时，MCU不接受信号，MCU驱动IGBT将线圈盘置于不开通状态。
本实施例中，MCU通过检测光电开关445b的开槽处是否有遮挡物来判断旋钮开关是缩回状态还是伸出状态，如图22所示，MCU通过检测槽型的光电开关445b的OUT端的电平状态来判断旋钮开关是伸出状态还是缩回状态，即，当开槽处有遮挡物时，光被隔离，OUT端输出高电平，当遮挡物移出开槽，光线可以通过，OUT端输出低电平。MCU通过旋转编码器42来判断旋钮开关是顺时针转动还是逆时针转动，如图23至图25所示，当旋转编码器42和光电开关445b一起转动时，MCU通过检测旋转编码器42的A点以及B点的波形变化，来判断是顺时针转动还是逆时针转动，从而调节火力大小或时间的大小长短，将 火力大小用LED灯来指示，并在OLED显示屏8上用火苗状显示火力用数字显示时间。LED火力指示的驱动电路如图26所示，为了保证LED灯的亮度，每个LED灯用一个NPN三极管来驱动。MCU为每个LED灯分配一个IO驱动，当IO输出高电平时LED灯点亮，当IO输出低电平时LED灯呈熄灭状态，因此可以很灵活地控制LED灯点亮的个数以及LED点亮的亮度。
以上实施例仅为本发明的示例性实施例，不用于限制本发明，本发明的保护范围由权利要求书限定。本领域技术人员可以在本发明的实质和保护范围内，对本发明做出各种修改或等同替换，这种修改或等同替换也应视为落在本发明的保护范围内。
本发明通过将旋钮开关组件设置成可以伸缩的结构，并在旋钮开关组件内设置信号单元，使用时只需按一下旋钮开关组件就会自动弹出，用户可以通过旋钮开关组件来调节电磁炉的功率大小及加热时间，且使用完毕之后再按一下旋钮开关组件会收回电器内部，延长了使用寿命，且方便用户清洁。
本发明通过在旋钮开关组件中集成显示屏、旋转编码器以及控制组件三种信号接受装置和信号反馈装置，有效地节省了操作显示界面占据电磁炉的空间，可以使产品更小型化，成本更低。
本发明通过在机壳的旋钮开关组件的四周设置导流筋，使锅具不小心溢出的汤汁沿机壳往下或往四周流动的时候，流到旋钮开关组件附近会被导流筋导流而朝导流筋外周面的方向流动，以防止汤汁流到机壳的内部。
本发明通过显示屏支架上的安装槽实现对显示屏的固定，通过屏幕护罩和挡光片实现对显示屏的保护，且保证OLED屏幕的显示效果；通过保护组件显示区域略大于显示屏的显示区保证显示清晰；通过热焊柱和卡扣孔实现保护组件与显示屏支架的固定，保证保护组件的稳固性。

Claims (23)

  1. 一种电磁炉的旋钮结构，包括设置于机壳(1)的至少一个旋钮开关组件(4)和设置于机壳(1)内的印制电路板(5)，旋钮开关组件(4)穿过机壳(1)上开设的通孔(11)与印制电路板(5)连接，其特征在于：
    所述通孔(11)周围设有一圈凸出于机壳(1)的导流筋(6)；
    所述旋钮开关组件(4)上装配有显示屏(7)；
    所述显示屏(7)外设有保护组件(8)；
    所述旋钮开关组件(4)包括套钮(41)、旋转编码器(42)、显示屏支架(43)和控制组件(44)。
  2. 根据权利要求1所述的一种电磁炉的旋钮结构，其特征在于：所述套钮(41)、旋转编码器(42)和显示屏支架(43)从外至内依次沿轴线装配。
  3. 根据权利要求1所述的一种电磁炉的旋钮结构，其特征在于：所述套钮(41)上设有用于防止套钮(41)和旋转编码器(42)相对周向转动的限位结构，所述限位结构包括设置于套钮(41)靠近印制电路板(5)的一端设置的多个插扣(411)和设置于套钮(41)内壁的多个凸筋(412)。
  4. 根据权利要求1所述的一种电磁炉的旋钮结构，其特征在于：所述套钮(41)在远离印制电路板(5)一端的内壁设有凸缘。
  5. 根据权利要求1所述的一种电磁炉的旋钮结构，其特征在于：所述旋转编码器(42)包括具有中空结构的固定内架(421)和转动外架(422)，固定内架(421)和转动外架(422)同轴线套接，固定内架(421)的一端固定于印制电路板(5)朝外的一侧。
  6. 根据权利要求5所述的一种电磁炉的旋钮结构，其特征在于：所述转动外架(422)外壁设置有至少一个外扣位(4221)和至少一个外插槽(4222)，固定内架(421)内壁上设置有至少一个内扣位(4211)和一个限位槽(4212)。
  7. 根据权利要求1所述的一种电磁炉的旋钮结构，其特征在于：所述显示屏支架(43)一端插接于固定内架(421)内，其远离印制电路板(5)的一端端面设有安装槽(431)，其外壁上设有至少一个限位筋(432)和至少一个限位卡扣(433)。
  8. 根据权利要求7所述的一种电磁炉的旋钮结构，其特征在于：所述安装槽(431)的槽壁外侧形成多个卡扣孔(434)，安装槽(431)底端形成线孔(4311)，其内壁对称设置一组卡筋(4312)，其内壁下侧形成底筋(4313)；安装槽(431) 两侧分别形成左安装槽(4314)、右安装槽(4315)，所述左安装槽(4314)、右安装槽(4315)中均形成固定孔。
  9. 根据权利要求1所述的一种电磁炉的旋钮结构，其特征在于：所述控制组件(44)包括设置于印制电路板(5)朝外的一面的开关按键(441a)，设置于显示屏支架(43)朝向印制电路板(5)的一端端面上且与该端面平行的凸缘片(444a)，以及设置于显示屏支架(43)靠近印制电路板(5)的一端的至少一个弹性元件(442a)和至少一个支撑筋(443a)；弹性元件(442a)两端分别连接于显示屏支架(43)上，支撑筋(443a)固定于弹性元件(442a)上，并支撑在印制电路板(5)的表面。
  10. 根据权利要求1所述的一种电磁炉的旋钮结构，其特征在于：所述控制组件(44)包括卡扣(441b)、设于电磁炉内的门锁(442b)、复位弹簧(443b)以及形成于显示屏支架(43)内壁上的环形筋(444b)，门锁(442b)包括安装板(442b1)和连接到安装板(442b1)上的锁体(442b2)，锁体(442b2)内设有锁扣(442b3)，卡扣(441b)固定于显示屏支架(43)的外侧壁上，并穿过印制电路板(5)的通孔，与锁扣(442b3)配合，复位弹簧(443b)的一端固定于安装板(442b1)的板面上，另一端固定于显示屏支架(43)的内侧壁上，并通过环形筋(444b)卡住。
  11. 根据权利要求10所述的一种电磁炉的旋钮结构，其特征在于：所述控制组件(44)还包括信号单元，所述信号单元包括信号发射单元、信号接收单元和信号屏蔽单元，且当所述复位弹簧(443b)呈伸展状态时，所述信号屏蔽单元屏蔽所述信号接收单元和信号发射单元之间的信号，以通过转动所述旋钮开关组件(4)输入调节所述家用电器的控制信号。
  12. 根据权利要求11所述的一种电磁炉的旋钮结构，其特征在于：所述信号单元包括光电开关(445b)和遮光片(446b)的组合、磁簧开关和磁铁的组合以及霍尔元件与磁铁的组合。
  13. 根据权利要求12所述的一种电磁炉的旋钮结构，其特征在于：所述光电开关(445b)或遮光片(446b)设于印制电路板(5)的朝向旋转编码器(42)的一侧面上，遮光片(446b)或光电开关(445b)设置于套钮(41)上。
  14. 根据权利要求1所述的一种电磁炉的旋钮结构，其特征在于：所述导流筋(6) 的外表面为凹弧面，且从里向外的内径逐渐缩小。
  15. 根据权利要求1所述的一种电磁炉的旋钮结构，其特征在于：所述导流筋(6)的末端设有位于上半圈或整圈的凸缘(61)，凸缘(61)凸出于导流筋(6)末端的外表面。
  16. 根据权利要求15所述的一种电磁炉的旋钮结构，其特征在于：所述凸缘(61)的高度≥1mm。
  17. 根据权利要求1所述的一种电磁炉的旋钮结构，其特征在于：所述显示屏(7)为OLED屏幕。
  18. 根据权利要求1所述的一种电磁炉的旋钮结构，其特征在于：所述显示屏(7)中形成屏幕显示区(71)。
  19. 根据权利要求1所述的一种电磁炉的旋钮结构，其特征在于：所述保护组件(8)包括屏幕护罩(81)，屏幕护罩(81)背部形成热焊柱(811)，屏幕护罩(81)外侧壁上设有多个与卡扣孔(434)一一对应卡接的扣位(812)；屏幕护罩(81)通过热焊固定于显示屏支架(43)上，其对应显示屏(7)处形成半透明护罩显示区域(813)。
  20. 根据权利要求19所述的一种电磁炉的旋钮结构，其特征在于：所述屏幕护罩(81)的前端形成光面，后端形成局部磨砂局部光面。
  21. 根据权利要求19所述的一种电磁炉的旋钮结构，其特征在于：所述保护组件(8)还包括挡光片(82)。
  22. 根据权利要求21所述的一种电磁炉的旋钮结构，其特征在于：所述挡光片(82)设置于屏幕护罩(81)与显示屏(7)之间，其直接贴合或间接固定在显示屏(7)上。
  23. 根据权利要求22所述的一种电磁炉的旋钮结构，其特征在于：所述挡光片(82)对应屏幕显示区(71)形成开孔结构的挡罩透光区(821)，挡罩透光区(821)四周设置一个或多个与热焊柱(811)对应的限位孔(822)。
PCT/CN2018/082449 2017-04-12 2018-04-10 一种电磁炉的旋钮结构 WO2018188574A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR2020197000025U KR200492810Y1 (ko) 2017-04-12 2018-04-10 전자조리기의 노브 구조
US16/348,027 US10753619B2 (en) 2017-04-12 2018-04-10 Knob structure for electromagnetic oven
JP2019600114U JP3223502U (ja) 2017-04-12 2018-04-10 電磁調理器のノブ構造

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201720378812.9U CN206755256U (zh) 2017-04-12 2017-04-12 具有防水结构的电磁炉
CN201720378812.9 2017-04-12

Publications (1)

Publication Number Publication Date
WO2018188574A1 true WO2018188574A1 (zh) 2018-10-18

Family

ID=60613622

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/082449 WO2018188574A1 (zh) 2017-04-12 2018-04-10 一种电磁炉的旋钮结构

Country Status (5)

Country Link
US (1) US10753619B2 (zh)
JP (1) JP3223502U (zh)
KR (1) KR200492810Y1 (zh)
CN (1) CN206755256U (zh)
WO (1) WO2018188574A1 (zh)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109579881A (zh) * 2019-01-08 2019-04-05 东莞市林积为实业投资有限公司 一种便于组装的编码器
CN109659176A (zh) * 2018-12-21 2019-04-19 佛山市云米电器科技有限公司 破壁机导光按钮结构
CN109933123A (zh) * 2018-12-21 2019-06-25 佛山市云米电器科技有限公司 一种破壁机的屏幕旋按控制结构
CN112228923A (zh) * 2020-09-24 2021-01-15 杭州九阳小家电有限公司 一种旋钮控制的烹饪器具
WO2022216243A1 (en) * 2021-04-08 2022-10-13 Ferel Elektronik San. Ve Tic. A. S. Rotary switch with optical sensor for a cooking device
WO2022231530A1 (en) * 2021-04-08 2022-11-03 Ferel Elektronik San. Ve Tic. A. S. Rotary control switch for a cooking appliance

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100770207B1 (ko) * 2001-07-27 2007-10-25 주식회사 포스코 연마유 필터레이션 설비의 필터교환장치
KR100764215B1 (ko) * 2003-10-14 2007-10-05 주식회사 만도 스티어링 칼럼의 로워 마운팅 브라켓 설치구조
JP4526374B2 (ja) * 2004-03-30 2010-08-18 大日本スクリーン製造株式会社 基板処理装置
KR100704242B1 (ko) * 2005-03-25 2007-04-05 한국전기연구원 일방향　차열구조물 및 이를 적용한 판넬형 가열히터
KR100765993B1 (ko) * 2005-10-18 2007-10-10 주식회사 오디에스 현금자동입출금기의 투영 광학계를 이용한 디스플레이 장치및 그 디스플레이 방법
KR100765561B1 (ko) * 2005-11-02 2007-10-09 엘지전자 주식회사 영상 디스플레이 기기용 스탠드
KR100730893B1 (ko) * 2005-11-30 2007-06-29 (주)삼성판넬플랜트 냉동창고용 도어형성틀 구조
KR100745791B1 (ko) * 2005-12-06 2007-08-02 엘지전자 주식회사 냉장고용 제빙장치
KR100751764B1 (ko) * 2005-12-19 2007-08-24 주식회사 대우일렉트로닉스 진공 청소기용 배기 필터
KR100724390B1 (ko) * 2005-12-29 2007-06-04 엘지전자 주식회사 공기조화기의 실외기
KR100763140B1 (ko) * 2006-02-28 2007-10-02 박철우 파이프의 밀폐를 위한 접속구
KR100756494B1 (ko) * 2006-03-06 2007-09-07 (주)알파텍 신발 살균건조기
KR100756500B1 (ko) * 2006-06-02 2007-09-10 황규복 휴대폰 접촉 단자.
KR100732916B1 (ko) * 2006-06-08 2007-06-28 주식회사 우전그린 도로용 안전발광난간
KR100734323B1 (ko) * 2006-06-28 2007-07-02 삼성전자주식회사 분산 배치된 데이터 입출력 라인들을 가지는 반도체 메모리장치
KR100739301B1 (ko) * 2006-07-11 2007-07-12 삼성에스디아이 주식회사 휴대용 표시장치의 커넥터
KR100768690B1 (ko) * 2006-07-24 2007-10-19 한국에너지기술연구원 슬러지투입장치 및 이를 구비한 열분해유화시스템
KR100756847B1 (ko) * 2006-08-16 2007-09-07 주식회사 포스코 벨트컨베이어의 부상방지롤러
KR100759231B1 (ko) * 2006-09-26 2007-09-17 주식회사 대우일렉트로닉스 진동저감 장치 및 스피커 체결장치
KR100755660B1 (ko) * 2006-11-02 2007-09-04 박승자 표준 발음 학습장치
KR100785664B1 (ko) * 2007-01-16 2007-12-14 이기원 조리음식 온도정보를 이용한 가스누출 경보 차단장치
KR100754779B1 (ko) * 2007-02-21 2007-09-03 주식회사 서원양행 압력조절 점적테이프
KR100749369B1 (ko) * 2007-04-30 2007-08-16 서천판교농업협동조합 표고버섯 티백차 제조방법 및 그 추말장치
KR100768761B1 (ko) * 2007-07-26 2007-10-19 주식회사3차버너 업소용 조리용기 받침대
KR102227929B1 (ko) * 2017-03-09 2021-03-12 포샨 순더 메이디 일렉트리컬 히팅 어플라이언시스 메뉴팩쳐링 코., 리미티드 하우징 조립체 및 조리기구
CN206755256U (zh) * 2017-04-12 2017-12-15 上海纯米电子科技有限公司 具有防水结构的电磁炉
CN209215975U (zh) * 2019-02-02 2019-08-06 迪尔阿扣基金两合公司 包括旋钮装置的电器设备
US11429209B2 (en) * 2019-07-03 2022-08-30 Whirlpool (China) Co., Ltd. Control knob for an appliance having rotational and axial selection interface
US11287289B2 (en) * 2019-07-19 2022-03-29 Jen-Wen SUN Digital encoder with screen
KR20210095488A (ko) * 2020-01-23 2021-08-02 삼성전자주식회사 조리기기
CA200633S (en) * 2020-06-29 2021-12-03 Midea Group Co Ltd Electric induction cooker
CA200972S (en) * 2020-07-16 2021-12-03 Midea Group Co Ltd Electric induction cooker
US20220295648A1 (en) * 2021-03-12 2022-09-15 Apple Inc. Electronic device
KR20230001238A (ko) * 2021-06-28 2023-01-04 엘지전자 주식회사 인터페이스 및 인터페이스가 구비된 의류처리장치
KR20230001242A (ko) * 2021-06-28 2023-01-04 엘지전자 주식회사 의류처리장치
KR20230001241A (ko) * 2021-06-28 2023-01-04 엘지전자 주식회사 의류처리장치
KR20230001237A (ko) * 2021-06-28 2023-01-04 엘지전자 주식회사 인터페이스 및 인터페이스가 구비된 의류처리장치
KR20230001239A (ko) * 2021-06-28 2023-01-04 엘지전자 주식회사 인터페이스 및 인터페이스가 구비된 의류처리장치
KR20230001286A (ko) * 2021-06-28 2023-01-04 엘지전자 주식회사 인터페이스 및 인터페이스가 구비된 의류처리장치
CN115705077A (zh) * 2021-08-17 2023-02-17 台达电子工业股份有限公司 电子装置
WO2023106683A1 (ko) * 2021-12-07 2023-06-15 엘지전자 주식회사 인터페이스 및 인터페이스가 구비된 의류처리장치
US11933502B2 (en) 2022-01-03 2024-03-19 Midea Group Co., Ltd. Cooking appliance with self-closing user control

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009222299A (ja) * 2008-03-17 2009-10-01 Panasonic Corp 加熱装置
JP2011052845A (ja) * 2009-08-31 2011-03-17 Panasonic Corp 加熱調理装置
WO2013098063A1 (en) * 2011-12-29 2013-07-04 Arcelik Anonim Sirketi A household appliance comprising a panel
CN203964262U (zh) * 2014-07-31 2014-11-26 延锋伟世通电子科技（上海）有限公司 空调控制器面板机构
CN204189066U (zh) * 2014-11-08 2015-03-04 佛山市顺德区客浦电器有限公司 一种旋钮装置
CN204880277U (zh) * 2015-07-21 2015-12-16 台湾樱花股份有限公司 瓦斯炉控制界面与面板组合结构
CN204883469U (zh) * 2015-09-10 2015-12-16 惠州市德赛西威汽车电子股份有限公司 一种显示旋钮
CN206755256U (zh) * 2017-04-12 2017-12-15 上海纯米电子科技有限公司 具有防水结构的电磁炉

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980011998U (ko) * 1996-08-20 1998-05-25 김광호 이중 스위치 노브
ITTO20120460A1 (it) * 2012-05-25 2013-11-26 Eltek Spa Dispositivo di controllo per rubinetti di gas
US9006591B2 (en) * 2012-11-13 2015-04-14 Electrolux Home Products, Inc. Appliance control knob support
DE102013008702A1 (de) * 2013-05-18 2014-11-20 Diehl Ako Stiftung & Co. Kg Berührungs- und/oder annäherungsempfindliches Betätigungselement
KR101623795B1 (ko) * 2014-10-07 2016-06-07 엘지전자 주식회사 조리기기
KR102236583B1 (ko) * 2014-12-05 2021-04-06 삼성전자주식회사 전자기기용 조그 다이얼 및 이를 구비한 전자기기
EP3168357B1 (en) * 2015-11-16 2020-01-22 Electrolux Appliances Aktiebolag Laundry treatment appliance
CN205943891U (zh) * 2016-06-30 2017-02-08 中山市豪通电器有限公司 一种旋钮装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009222299A (ja) * 2008-03-17 2009-10-01 Panasonic Corp 加熱装置
JP2011052845A (ja) * 2009-08-31 2011-03-17 Panasonic Corp 加熱調理装置
WO2013098063A1 (en) * 2011-12-29 2013-07-04 Arcelik Anonim Sirketi A household appliance comprising a panel
CN203964262U (zh) * 2014-07-31 2014-11-26 延锋伟世通电子科技（上海）有限公司 空调控制器面板机构
CN204189066U (zh) * 2014-11-08 2015-03-04 佛山市顺德区客浦电器有限公司 一种旋钮装置
CN204880277U (zh) * 2015-07-21 2015-12-16 台湾樱花股份有限公司 瓦斯炉控制界面与面板组合结构
CN204883469U (zh) * 2015-09-10 2015-12-16 惠州市德赛西威汽车电子股份有限公司 一种显示旋钮
CN206755256U (zh) * 2017-04-12 2017-12-15 上海纯米电子科技有限公司 具有防水结构的电磁炉

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109659176A (zh) * 2018-12-21 2019-04-19 佛山市云米电器科技有限公司 破壁机导光按钮结构
CN109933123A (zh) * 2018-12-21 2019-06-25 佛山市云米电器科技有限公司 一种破壁机的屏幕旋按控制结构
CN109579881A (zh) * 2019-01-08 2019-04-05 东莞市林积为实业投资有限公司 一种便于组装的编码器
CN112228923A (zh) * 2020-09-24 2021-01-15 杭州九阳小家电有限公司 一种旋钮控制的烹饪器具
WO2022216243A1 (en) * 2021-04-08 2022-10-13 Ferel Elektronik San. Ve Tic. A. S. Rotary switch with optical sensor for a cooking device
WO2022231530A1 (en) * 2021-04-08 2022-11-03 Ferel Elektronik San. Ve Tic. A. S. Rotary control switch for a cooking appliance

Also Published As

Publication number Publication date
US10753619B2 (en) 2020-08-25
KR200492810Y1 (ko) 2020-12-14
JP3223502U (ja) 2019-10-17
KR20190000990U (ko) 2019-04-26
CN206755256U (zh) 2017-12-15
US20190301744A1 (en) 2019-10-03

Similar Documents

Publication Publication Date Title
WO2018188574A1 (zh) 一种电磁炉的旋钮结构
CN206147526U (zh) 一种智能电水壶
CN201408519Y (zh) 带有触摸感应发光按键的显示器
CN210378401U (zh) 显示膜、家用电器显示屏和家用电器
CN211883441U (zh) 一种平板旋钮装配结构、显示屏组件
CN205618807U (zh) 一种电子淋浴龙头
CN210349243U (zh) 显示膜、家用电器显示屏和家用电器
CN208269218U (zh) 电磁炉
CN208920615U (zh) 一种电热器具的一体显示装置及其控制系统
CN211582581U (zh) 调温旋钮组件及具有其的烹饪器具
CN220308927U (zh) 具有显示功能的烹饪器具
CN217467948U (zh) 显示装置及家用电器
CN211582626U (zh) 烹饪器具
CN212394693U (zh) 料理机主机及料理机
CN211399445U (zh) 一种多功能装饰灯
CN108646806A (zh) 一种温控器及其控制方法
CN111297093A (zh) 一种带背景灯及把手的门或抽屉的面板
WO2019033387A1 (zh) 一种智能控制面板结构
CN211858040U (zh) 显示屏组件和家用电器
CN217978935U (zh) 烹饪器具
CN208799078U (zh) 一种电饭煲控制显示结构
CN213233664U (zh) 感应式水龙头用把手
CN210072331U (zh) 挂钟结构
CN211454569U (zh) 家用电器显示屏和家用电器
CN218763299U (zh) 一种烹饪器具

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18785088

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 20197000025

Country of ref document: KR

Kind code of ref document: U

ENP Entry into the national phase

Ref document number: 2019600114

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18785088

Country of ref document: EP

Kind code of ref document: A1