CN212484198U

CN212484198U - Control knob of household appliance

Info

Publication number: CN212484198U
Application number: CN202021538328.6U
Authority: CN
Inventors: 高利敏; 郭海明; 周杰; 付会梅; 王素文
Original assignee: Whirlpool China Co Ltd
Current assignee: Whirlpool China Co Ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-02-05
Anticipated expiration: 2030-07-28

Abstract

The utility model discloses a control knob of household appliances, which relates to the field of household appliances and comprises a control panel, wherein the control panel is fixedly connected with a knob with a hollow inner part, the control panel is provided with a plurality of program control circuits which are all connected with an MCU in the control panel, and a display screen is fixedly connected inside the knob, the utility model has simple structure, and compared with the prior art that the knob is rotated and pressed by a sensor through improving the structure of the knob and the inner circuit, the utility model can omit the sensor in the circuit, not only can realize the function of selecting the knob and starting the program of the household appliances, but also can avoid the influence of the high failure rate of the sensor on the normal use of the circuit, and simultaneously, the utility model can lead the circuit to be in a complete closing state after the household appliances are operated, the power consumption of the circuit is reduced to a certain extent.

Description

Control knob of household appliance

Technical Field

The utility model relates to a domestic appliance field specifically is a domestic appliance's control knob.

Background

General domestic appliance sets for more button or knob in the course of the work for user operation is complicated, and the user embodies the effect poor, the utility model relates to a domestic appliance's control structure starts through a knob control domestic appliance key, controls washing machine user program's selection through the rotation of knob and pressing, makes washing machine interface succinct, makes washing machine's operation succinct more, fashion, promotes user experience.

Chinese patent documents CN207541587U and 2018, 6 and 26, each disclose a control structure of a home controller, which includes a main body of a home appliance and a control panel, wherein a knob is disposed on the control panel, and an operation element is disposed above the top of the knob to control a working instruction of the main body of the home appliance; a vibration feedback system is arranged between the knob and the operating element so as to sense the force and time of the operating element of a user and force the operating element to make corresponding vibration and feed back to the user; the operating element comprises a display screen; the vibration feedback system is sequentially provided with a sensing layer, a vibration element and a pressure sensor.

The utility model has the advantages that the sensor is arranged in the lower part of the display screen, the sensor detects the degree of pressure and the time, and whether the user operates the device is judged by processing the degree of pressure and the time, so that the hardware circuit structure and the cost are not optimal; the utility model discloses an use the sensor to carry out the start and detect, whole control structure is in standby state constantly, and the stand-by power consumption does not reach the optimum, and the sensor failure rate is high, in case the sensor became invalid, the user will be unable to close domestic appliance through other modes.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a domestic appliance's control knob, through the inner structure to domestic appliance control knob and the improvement that corresponds the circuit, changed the using-way of current domestic appliance knob to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a domestic appliance's control knob, includes control panel, the inside hollow knob of fixedly connected with on the control panel, the last many program control circuit that is equipped with of control panel, many program control circuit all links to each other with MCU among the control panel, the inside fixedly connected with display screen of knob, the display screen links to each other with program control circuit, the knob outer pot head is established and is connected with through rotatory select program control circuit, through pressing the resilience regulating part that comes the starting circuit procedure, the knob is close to the first piece and the second that switches on of one end fixedly connected with of control panel, fixedly connected with is used for controlling the first piece that switches on and the linkage converting part of two circuit intercommunications of power, relay K1 and power on the control panel, the second switches on and links to each other with program control circuit.

As a further aspect of the present invention: one end of the rebound adjusting piece, which is close to the control panel, is fixedly connected with a pressing piece which is used for driving the first conduction piece and the second conduction piece to be connected into the program control circuit.

As a further aspect of the present invention: the display screen is an LED screen or an LCD screen, and the display screen is circular or rectangular.

As a further aspect of the present invention: one end of the second conduction piece is grounded through a resistor, and the other end of the second conduction piece is connected with an MCU port of the control panel.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses novel structure selects the procedure or the function that domestic appliance corresponds through rotatory and pressing the knob, realizes operation interface's demonstration through the display screen, simplifies the user and to domestic appliance's control, promotes user experience.

Drawings

FIG. 1 is an exploded view of a control button of a household appliance panel;

FIG. 2 is a schematic circuit diagram of a control button of a panel of a household appliance;

in the figure: the device comprises a clamping ring 1, a display screen 2, a knob 3, a rebound adjusting piece 4, a control panel 5, a linkage converting piece 6, a first conducting piece 7, a second conducting piece 8 and a pressing piece 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, in an embodiment of the present invention, a control knob for a household appliance includes a control panel, the control panel is fixedly connected with a knob 3 with a hollow inner part, the knob 3 can be fixed on the control panel in a sealing way through a clamping ring 1 or can be directly fixed on the control panel, the control panel is provided with a plurality of program control circuits which respectively control different running modes of the household appliance correspondingly, a user can rotate the knob to select the program control circuits according to actual use requirements, the program control circuits are connected with the MCU in the control panel, the interior of the knob is fixedly connected with the display screen which is connected with the program control circuits, through the communication effect among the control panel, the program control circuit and the display screen, a user can control the starting program of the household appliance and the display interface corresponding to the display screen through operating the knob.

The utility model discloses a control panel, including knob 3, rebound regulating part 4, program control circuit, the program control circuit that switches on through the rotation selection of rebound regulating part, the program control circuit that switches on through pressing to start, the one end fixedly connected with that the knob is close to control panel first switches on a 7 and second switches on a 8, can switch on a 7 and second through pressing the rebound regulating part and switch on in the program control circuit with first switch on a 7 and second.

The control panel is fixedly connected with a linkage conversion piece 6 for controlling the communication of a first conduction piece 7 and a power supply and the communication of a relay K1 and the power supply, the first conduction piece 7 and the relay K1 are connected in parallel in a program control circuit, and when the linkage conversion piece 6 conducts the first conduction piece 7 and the power supply, the relay K1 is disconnected from the power supply; when the linkage converting piece 9 connects the relay K1 to the power supply, the first connecting piece 7 is disconnected from the power supply.

The one end fixedly connected with that the regulating part that kick-backs is close to control panel is used for driving the first pressing piece 9 that switches on a piece, the second switches on a piece access program control circuit, when the user pressed the regulating part that kick-backs, drives the pressing piece and switches on a piece with first and the second and inserts in the program control circuit, 8 one end that the second switches on a piece is through resistance ground connection, and the other end links to each other with control panel's MCU port, the display screen is LED screen or LCD screen, the shape of display screen is circular or rectangle, domestic appliance detects and controls through the MCU among the control panel.

One end of the linkage conversion piece 6 is connected with a power supply, the other end of the linkage conversion piece 6 can be connected with a contact end of the first conduction piece 7 or the relay K1, a user presses the rebound adjusting piece 4 to drive the linkage conversion piece to communicate the first conduction piece with the power supply, at the moment, the power supply module obtains input voltage, the control panel and the relay K1 start to supply power, when the first conduction piece 7 is completely pressed, the linkage conversion piece 6 is driven by the pressing piece 9 to communicate the relay with the power supply, the control panel sends out a relay K1 suction signal to control the relay to suck, the whole power supply part supplies power through the relay K1, meanwhile, the control panel detects that the second conduction piece 8 is connected with the program control circuit, the MCU controls the display screen 2 to display a starting interface, after the user releases the rebound adjusting piece 4, the first conduction piece 7 and the second conduction piece 8 are disconnected from the program control circuit, and the linkage conversion piece 6 keeps in a relay contact connection state, the communication between the relay K1 and the program control circuit is not affected.

The principle that the relay is controlled to be closed through the MCU in the electric appliance control unit is as follows: before pressing the regulation piece 4 that kick-backs, relay K1 is the disconnection, press the regulation piece 4 that kick-backs after, first switch-on piece 7 switches on the back, the power is electrified, the MCU port is electrified, continue to press the regulation piece 4 that kick-backs, linkage converting element 6 makes relay and power be linked together under the drive of pressing the piece 9, control relay K1's coil end, relay K1 actuation, after first switch-on piece 7 breaks off, because power electrolytic capacitor discharges, MCU still has enough time to control relay K1 actuation, therefore relay K1 actuation all the time, the power continues to be electrified for the power through K1, until MCU port control relay K1 disconnection.

The linkage converting part 6 comprises a pin 1, a pin 2 and a pin 3, the pin 2 is connected with the power starting end, one end of the first conducting part 7, which is far away from the pin 3, is connected with the power tail end, one end of the first conducting part, which is close to the pin 3, can be connected with the pin 3 of the linkage converting part, so that the first conducting part is connected with the power, one end of the relay, which is far away from the pin 1, is connected with the power tail end, and the pin 2 of the linkage converting part can be connected with the pin 1, so that the relay is connected with the power.

After the display screen shows the start interface, the user can rotate the rebound adjusting part 4, select many program control circuits as required, the display screen shows the program interface that corresponds simultaneously, press the rebound adjusting part 4 once more and switch on 8 access program control circuits with the second again, control panel detects that 8 access circuits once more switch on of second, control domestic appliance main part starts the operation this moment, after the operation, MCU control relay K1 breaks off, make whole control panel all be in non-electrified state.

When the user presses the rebound adjusting piece 4 again, the pressing piece 9 pushes the linkage converting piece 6 to reset, the state that the feet 2 and 3 are communicated is recovered, the first conducting piece is connected with the power supply, at the moment, the first conducting piece 7 is connected with the power supply through the linkage converting piece 6, when the user continues to press the rebound adjusting piece 4 again, the feet 2 and 1 of the linkage converting piece are connected, the linkage converting piece is adjusted to be connected with the relay K1, and therefore the operation steps of the household appliance are repeated.

If the user is when operating domestic appliance, press the resilience regulating part 4 of knob outer end for a long time, control panel detects that the second switches on the piece and is put through for a long time after, and control panel automatic selection intelligence program starts domestic appliance operation.

The utility model discloses novel structure, the operation is stable, the utility model discloses when using, when the resilience regulating part 4 of 3 outer ends of knob rotated or pressed the operation, control panel detected corresponding signal and transmitted to MCU, and MCU is through the operation that detects the resilience regulating part, and the operation of the program interface that the demonstration of the re-control display screen 2 corresponds is controlled the household electrical appliance body simultaneously.

The utility model discloses a to the structure of knob and the improvement of internal circuit, compare in prior art and detect the rotatory mode of pressing with pressing down of knob through the sensor, the utility model discloses can save the sensor in the circuit, not only can realize the knob and select and start the function of domestic appliance procedure, can avoid the high fault rate of sensor to the influence of circuit normal use moreover, simultaneously the utility model discloses after the domestic appliance operation is accomplished, can make the circuit be in the complete closed state, reduced the power consumption of circuit to a certain extent.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A control knob of a household appliance is characterized by comprising a control panel (5), wherein a knob (3) with a hollow inner part is fixedly connected to the control panel, a plurality of program control circuits are arranged on the control panel and are all connected with an MCU in the control panel, a display screen (2) is fixedly connected to the inner part of the knob and is connected with the program control circuits, a rebound adjusting piece (4) which selects the program control circuits through rotation and starts the circuit programs through pressing is sleeved at the outer end of the knob (3), a first conducting piece (7) and a second conducting piece (8) are fixedly connected to one end, close to the control panel, of the knob, a linkage converting piece (6) which is used for controlling the first conducting piece (7) to be communicated with a power supply and a relay K1 to be communicated with the two circuits of the power supply is fixedly connected to the control panel, the second conducting piece is connected with the program control circuit.

2. The control knob of a household appliance according to claim 1, wherein a pressing member (9) for driving the first and second conducting members to access the program control circuit is fixedly connected to one end of the rebound adjusting member adjacent to the control panel.

3. The control knob of a home appliance according to claim 1, wherein the display screen is an LED screen or an LCD screen, and the display screen is circular or rectangular in shape.

4. The control knob of a household appliance according to claim 1, characterized in that one end of the second conducting member (8) is grounded through a resistor, and the other end is connected with the MCU port of the control panel.