CN110262293B

CN110262293B - Control method of household appliance, household appliance and readable storage medium

Info

Publication number: CN110262293B
Application number: CN201910500741.9A
Authority: CN
Inventors: 周坚毅; 张磊磊; 韦宝登; 洪明花
Original assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Priority date: 2019-06-11
Filing date: 2019-06-11
Publication date: 2020-12-22
Anticipated expiration: 2039-06-11
Also published as: CN110262293A

Abstract

The invention discloses a control method of a household appliance, the household appliance and a readable storage medium. The household appliance comprises a cavity, a drawer connected with the cavity and a motor driving the drawer to move back and forth relative to the cavity. The moving stroke of the drawer comprises a first stroke, a second stroke and a third stroke. The first stroke is a starting section of a closing stroke of the drawer or an ending section of an opening stroke of the drawer. The second stroke is the closing stroke or the middle section of the opening stroke, and the third stroke is the ending section of the closing stroke or the starting section of the opening stroke. The control method comprises the following steps: controlling a motor to drive the drawer to move at a first stroke by a first torque; controlling the motor to drive the drawer to move at a second stroke with a second torque; controlling the motor to drive the drawer to move in a third stroke at a third torque; wherein the third torque is greater than the second torque and the first torque. The control method of the household appliance can ensure that the drawer can be opened and closed smoothly and can improve the safety of the household appliance in use.

Description

Control method of household appliance, household appliance and readable storage medium

Technical Field

The invention relates to the technical field of household appliances, in particular to a control method of a household appliance, the household appliance and a readable storage medium.

Background

In the drawer type household appliances in the related art, in order to ensure the speed of the whole automatic opening and closing process to be stable, the torque used by the motor is the same in the whole opening stroke or closing stroke. The drawer type household appliance locks the door body and the cavity body through the matching of the clamping hook and the clamping plate. In order to prevent accidental events such as pinching fingers of a user, the household appliance is provided with an obstacle recognition device, and when the fact that the resistance for opening or closing is larger than a set limit value is recognized, the household appliance is stopped. This limit is not large for safety reasons. However, in the opening and closing process, when the resistance brought by the hook and the clamping plate is not less than the limit value, the door body cannot be opened or closed.

Disclosure of Invention

The invention provides a control method of a household appliance, the household appliance and a readable storage medium.

The household appliance comprises a cavity, a drawer connected with the cavity and a motor driving the drawer to move back and forth relative to the cavity, wherein the moving stroke of the drawer comprises a first stroke, a second stroke and a third stroke, the first stroke is a starting section of a closing stroke of the drawer or an ending section of an opening stroke of the drawer, the second stroke is a middle section of the closing stroke or the opening stroke, the third stroke is an ending section of the closing stroke or a starting section of the opening stroke,

the control method comprises the following steps:

controlling the motor to drive the drawer to move at the first stroke with a first torque;

controlling the motor to drive the drawer to move at the second stroke with a second torque;

controlling the motor to drive the drawer to move in the third stroke at a third torque;

wherein the third torque is greater than the second torque and the first torque.

According to the control method of the household appliance, in the opening and closing process of the drawer, the motor is controlled to drive the drawer to move with different torques, and meanwhile, in the ending section of the closing stroke and the starting section of the opening stroke, the motor is controlled to drive the drawer with larger torque. Therefore, the drawer can be ensured to have enough force to overcome resistance in the switching process of the opening and closing state, so that the opening and closing are smooth; and the occurrence of accidents such as clamping fingers of a user in the switching process can be prevented, and the use safety of the household appliance is improved.

In certain embodiments, the second torque is greater than the first torque.

In some embodiments, the drawer is provided with a door body, and the control method comprises the following steps:

acquiring the distance between the cavity and the door body;

determining whether the drawer is in the first stroke, the second stroke, or the third stroke based on the distance.

In some embodiments, determining whether the drawer is in the first stroke, the second stroke, or the third stroke based on the distance comprises:

determining that the drawer is in the first stroke if the distance is not less than a first distance;

determining that the drawer is in the second stroke if the distance is less than the first distance and not less than a second distance;

determining that the drawer is in the third stroke if the distance is less than the second distance;

wherein the first distance is greater than the second distance.

In certain embodiments, the control method comprises:

acquiring the movement distance of the drawer relative to the cavity;

determining whether the drawer is in the first stroke, the second stroke, or the third stroke according to the movement distance.

In certain embodiments, the control method comprises:

receiving an opening signal and controlling the motor to rotate along a first direction according to the opening signal so as to open the drawer;

receiving a closing signal and controlling the motor to rotate along a second direction according to the closing signal so as to close the drawer, wherein the first direction is opposite to the second direction.

The household appliance comprises a processor, a cavity, a drawer connected with the cavity and a motor driving the drawer to move back and forth relative to the cavity, wherein the moving stroke of the drawer comprises a first stroke, a second stroke and a third stroke, the first stroke is a starting section of a closing stroke of the drawer or an ending section of an opening stroke of the drawer, the second stroke is a middle section of the closing stroke or the opening stroke, the third stroke is an ending section of the closing stroke or a starting section of the opening stroke, the processor is connected with the motor and used for controlling the motor to drive the drawer to move on the first stroke with a first torque, controlling the motor to drive the drawer to move on the second stroke with a second torque and controlling the motor to drive the drawer to move on the third stroke with a third torque, wherein the third torque is greater than the second torque and the first torque.

According to the household appliance, in the opening and closing process of the drawer, the motor is controlled to drive the drawer to move with different torques, and meanwhile, in the ending section of the closing stroke and the starting section of the opening stroke, the motor is controlled to drive the drawer with larger torque. Therefore, the drawer can be ensured to have enough force to overcome resistance in the switching process of the opening and closing state, so that the opening and closing are smooth; and the occurrence of accidents such as clamping fingers of a user in the switching process can be prevented, and the use safety of the household appliance is improved.

In certain embodiments, the second torque is greater than the first torque.

In some embodiments, the household appliance includes a distance sensor connected to the processor, the drawer is provided with a door body, at least one of the cavity and the door body is provided with the distance sensor, the distance sensor is configured to detect a distance between the cavity and the door body, and the processor is configured to obtain the distance and determine whether the drawer is in the first stroke, the second stroke, or the third stroke according to the distance.

In certain embodiments, the processor is configured to determine that the drawer is in the first stroke if the distance is not less than a first distance, and to determine that the drawer is in the second stroke if the distance is less than the first distance and not less than a second distance, and to determine that the drawer is in the third stroke if the distance is less than the second distance, wherein the first distance is greater than the second distance.

In some embodiments, the processor is configured to obtain a movement distance of the drawer relative to the cavity, and to determine whether the drawer is in the first stroke, the second stroke, or the third stroke based on the movement distance.

In some embodiments, the processor is configured to receive an open signal and control the motor to rotate in a first direction to open the drawer according to the open signal, and configured to receive a close signal and control the motor to rotate in a second direction to close the drawer according to the close signal, the first direction being opposite to the second direction.

A computer-readable storage medium of an embodiment of the present invention has a computer program stored thereon, which when executed by a processor, implements the steps of the control method of any of the above-described embodiments.

According to the computer-readable storage medium of the embodiment of the invention, the motor is controlled to drive the drawer to move with different torques in the opening and closing process of the drawer, and the motor is controlled to drive the drawer with a larger torque in the ending section of the closing stroke and the starting section of the opening stroke. Therefore, the drawer can be ensured to have enough force to overcome resistance in the switching process of the opening and closing state, so that the opening and closing are smooth; and the occurrence of accidents such as clamping fingers of a user in the switching process can be prevented, and the use safety of the household appliance is improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a home appliance according to an embodiment of the present invention;

fig. 2 is another structural schematic diagram of the home appliance according to the embodiment of the present invention;

fig. 3 is a further structural schematic diagram of the home appliance according to the embodiment of the present invention;

fig. 4 is a partial structural schematic view of a home appliance according to an embodiment of the present invention;

fig. 5 is another partial structural schematic view of the household appliance according to the embodiment of the present invention;

fig. 6 is an exploded structural schematic view of a home appliance according to an embodiment of the present invention;

fig. 7 is a flowchart illustrating a control method of a home appliance according to an embodiment of the present invention;

fig. 8 is another flowchart illustrating a control method of a home appliance according to an embodiment of the present invention;

fig. 9 is still another flowchart of a control method of a home appliance according to an embodiment of the present invention;

fig. 10 is another flowchart illustrating a control method of a home appliance according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

The control method of the embodiment of the present invention is applied to the drawer type home appliance 100. The drawer type home appliance 100 includes, but is not limited to, a drawer type dishwasher, a drawer type sterilizing cabinet, a drawer type refrigerator, a drawer type microwave oven, a drawer type oven, and the like home appliances 100. Referring to fig. 1-3, a household appliance 100 includes a housing 102, a drawer 104 connected to the housing 102, and a motor 106 for driving the drawer 104 to move back and forth relative to the housing 102. The drawer 104 is provided with a door 108. The door 108 is provided with a handle 110 and a window 112. The pull handle 110 may be used to open or close the drawer 104. The viewing window 112 may be used to view conditions within the cavity 102. Referring to fig. 4 and 5, the household appliance 100 further includes a hook 114 and a card board 116. The hook 114 is arranged on one of the door 108 and the cavity 102, and the clamping plate 116 is arranged on the other of the door 108 and the cavity 102. The hook 114 and the clip 116 are engaged to lock the door 108 and the cavity 102.

It is understood that in one example, the latch 114 is disposed on the door 108 and the catch 116 is disposed on the cavity 102. In another example, the hook 114 is disposed in the cavity 102 and the catch plate 116 is disposed in the door 108. The hook 114 has a ramp 118 that mates with the catch plate 116. The catch plate 116 is disposed obliquely with respect to the vertical, having a ramp 120. The hook 114 may slide along the ramp 120 of the card 116 and may easily rest on the card 116, while the hook 114 may rest on the card 116 by the ramp 118.

In the illustrated embodiment, the hook 114 is disposed on the door 108, and the catch 116 is disposed on the cavity 102. The household appliance 100 includes an interlock bracket 124 disposed in the cavity 102, and the catch plate 116 is disposed in the interlock bracket 124. When the drawer 104 is closed, as the drawer 104 moves, the hook 114 on the door 108 gradually approaches the hook 116 and engages with the ramp 120, and the hook 114 needs to slide over the ramp 120 against the hook 116 to close the drawer 104. When the drawer 104 is opened, the drawer 104 can be opened only by increasing the force due to the snap connection between the snap hooks 114 and the snap plates 116.

Further, the household appliance 100 comprises a plurality of micro switches 126 provided at the interlock bracket 124. When the hook 114 is engaged with the card board 116, the hook 114 activates the micro switches 126. The contact positions of the plurality of micro switches 126 with the hooks 114 are in different orientations.

It is understood that a plurality of micro-switches 126 are used to monitor whether the door 108 and the chamber 102 are tightly closed. In the example of fig. 4 and 5, the plurality of microswitches 126 includes a first microswitch 128 and a second microswitch 130. When the drawer 104 is closed, the hook 114 is engaged with the catch plate 116 along with the movement of the drawer 104, and at this time, the hook 114 activates the first micro switch 128 and the second micro switch 130 to change the states of the two micro switches 126, so as to determine whether the door 108 and the cavity 102 are tightly closed according to the states of the first micro switch 128 and the second micro switch 130. The contact position of the first microswitch 128 and the hook 114 is located at the right side of the hook 114, and the contact position of the second microswitch 130 and the hook 114 is located at the lower side of the hook 114. This contact from different orientations makes it more reliable to determine whether the door 108 is secured to the chamber 102.

Referring to fig. 1 and 6, in the present invention, the household appliance 100 includes a connecting assembly 132. The connection assembly 132 includes a slide bracket 134, a slide 136, and a guide plate 138. The slide rail bracket 134 is disposed in the cavity 102, and the guide plate 138 is connected to the drawer 104. The slide rail 136 includes a first rail 140 mounted to the slide rail bracket 134 and a second rail 142 mounted to the guide plate 138. The chamber 102 and the guide plate 138 are movably connected to each other by a slide rail 136.

Specifically, the guide plate 138 is attached to one side of the door body 108. The connecting assembly 132 can support and slide the drawer 104, so that the drawer 104 can be firmly installed and smoothly and stably moved. One of the first rail 140 and the second rail 142 is a fixed rail, and the other is a movable rail. The first rail 140 and the second rail 142 slide in cooperation to allow the drawer 104 to move smoothly.

Further, the motor 106 is connected to the guide plate 138 via a gear (not shown) and a rack (not shown) that are coupled together. The output shaft of the motor 106 is connected to a gear, and the rack is fixedly mounted on the guide plate 138 via a fixing block 144. The motor 106 drives the gear to rotate, the gear rotates to drive the rack matched with the gear to move, the rack is fixed on the guide plate 138, the guide plate 138 is driven to move by the rack moving, the drawer 104 is driven to move by the guide plate 138 moving, and the drawer 104 is automatically opened and closed. The opening or closing of the drawer 104 can be achieved by controlling the forward or reverse rotation of the motor 106, thereby making the opening and closing control of the drawer 104 simple and convenient. In other embodiments, the motor 106 may be driven by other means, such as belts, chains, etc.

In the embodiment shown in fig. 6, the household appliance 100 comprises three connection assemblies 132. The guide plates 138 are located on the left and right sides of the drawer 104 and below the drawer 104. Correspondingly, the left and right side plates 146 and the bottom plate 148 of the cavity 102 are provided with the slide rail brackets 134. The first rail 140 of the slide rail 136 is a fixed rail fixed to the slide rail bracket 134, and the second rail 142 is a movable rail fixed to the guide plate 138. The guide plate 138 may be a hinge guide plate 138.

Referring to fig. 2 and 7, the moving stroke S of the drawer 104 includes a first stroke S1, a second stroke S2, and a third stroke S3. The first stroke S1 is an initial stage of the closing stroke of the drawer 104 or an end stage of the opening stroke of the drawer 104. The second stroke S2 is an intermediate portion of the closing stroke or the opening stroke. The third stroke S3 is the end segment of the closing stroke or the start segment of the opening stroke. The control method comprises the following steps:

step S10: determining whether the drawer 104 is in the first stroke S1, the second stroke S2, or the third stroke S3;

step S20: controlling the motor 106 to drive the drawer 104 to move at the first stroke S1 with the first torque;

step S30: controlling the motor 106 to drive the drawer 104 to move at the second stroke S2 with the second torque;

step S40: controlling the motor 106 to drive the drawer 104 to move at the third stroke S3 with the third torque;

In the control method of the household appliance 100 according to the embodiment of the present invention, the motor 106 is controlled to drive the drawer 104 to move with different torques during the opening and closing of the drawer 104, and the motor 106 is controlled to drive the drawer 104 with a larger torque during the ending period of the closing stroke and the starting period of the opening stroke. Therefore, the drawer 104 can be ensured to have enough force to overcome resistance in the switching process of the switch state, so as to be smoothly opened and closed; and can prevent the occurrence of accidents such as pinching fingers of a user in the switching process, thereby improving the safety of the household appliance 100 in use.

It can be understood that, since the household appliance 100 locks the door 108 and the cavity 102 through the cooperation of the hook 114 and the hook 116, during the switching of the open/close state of the drawer 104, a sufficient force is required to make the hook 114 overcome the resistance of the hook 116 to smoothly open the drawer 104 or close the drawer 104. Therefore, in the present invention, the moving stroke S of the drawer 104 is divided into the first stroke S1, the second stroke S2 and the third stroke S3, and the motor 106 is controlled to drive the drawer 104 to move with different torques for different strokes. The third torque is greater than the second torque and the first torque, and the first torque may be equal to the second torque or less than the second torque. The movement stroke S of the drawer 104 refers to a stroke required to move the drawer 104 from the closed state to the fully open state, and a stroke required to move the drawer 104 from the fully open state to the closed state.

When the drawer 104 is closed and the drawer 104 moves to the third stroke, the torque of the motor 106 is large. Since the power of the motor 106 is constant, the rotation speed of the motor 106 is inversely proportional to the torque, and at this time, the rotation speed of the motor 106 is small. Therefore, the moving speed of the drawer 104 is relatively low, and if the fingers of the user accidentally fall between the door 108 and the cavity 102, the fingers can be drawn out for the user with enough reaction time, so that the fingers are prevented from being pinched.

During the process of switching the drawer 104 from the closed state to the fully open state, the motor 106 drives the drawer 104 to move in the third stroke S3 with the third torque to start the opening stroke of the drawer 104, so that the hook 114 is disengaged from the hook plate 116. When the drawer 104 moves to the second stroke S2, the motor 106 is switched to the second torque to drive the drawer 104 to move so as to continuously open the drawer 104. When the drawer 104 moves to the first stroke S1, the motor 106 switches to the first torque to drive the drawer 104 to move to fully open the drawer 104.

During the switching of the drawer 104 from the fully open state to the closed state, the motor 106 drives the drawer 104 to move at a first stroke S1 with a first torque to initiate a closing stroke of the drawer 104. When the drawer 104 moves to the second stroke S2, the motor 106 is switched to the second torque to drive the drawer 104 to move so as to ensure that the drawer 104 can be normally closed. When the drawer 104 moves to the third stroke S3, the motor 106 is switched to the third torque to drive the drawer 104 to move, so that the hook 114 is engaged with the hook plate 116, and the door 108 and the cavity 102 are locked.

In one example, the third torque is greater than the second torque, the second torque is greater than the first torque, and the first torque is greater than zero. When the drawer 104 moves in the third stroke S3, the torque of the motor 106 is sufficient to provide enough force to overcome the resistance force so that the hook 114 can slide past the card 116 or the hook 114 can be disengaged from the card 116. When the drawer 104 moves in the second stroke S2, the torque of the motor 106 is reduced, and if a child stands in front of the household appliance 100 or other obstacles, the child may be prevented from being pushed over, and the collision force with the obstacles may be reduced. When the drawer 104 moves in the first stroke S1, the torque of the motor 106 is reduced again, so that inertia when the drawer 104 stops moving or shaking caused by the drawer 104 starting to move can be reduced, thereby preventing the articles in the drawer 104 from shaking.

In addition, in step S10, it may be determined whether drawer 104 is in the first stroke, and if drawer 104 is not in the first stroke, it may be determined whether drawer 104 is in the second stroke, and if drawer 104 is not in the second stroke, it may be determined that drawer 104 is in the third stroke. Or, it may be determined whether the drawer 104 is in the second stroke first, and if the drawer 104 is not in the second stroke, it is determined whether the drawer 104 is in the first stroke, and if the drawer 104 is not in the first stroke, it is determined that the drawer 104 is in the third stroke. Alternatively, it may be determined whether the drawer 104 is in the third stroke, and if the drawer 104 is not in the third stroke, it may be determined whether the drawer 104 is in the second stroke, and if the drawer 104 is not in the second stroke, it may be determined that the drawer is in the first stroke 104, and so on.

Referring to fig. 8, in some embodiments, the drawer 104 is provided with the door 108, and the step S10 includes:

step S12: obtaining the distance between the cavity 102 and the door 108;

step S14: it is determined whether the drawer 104 is in the first stroke S1, the second stroke S2, or the third stroke S3 according to the distance.

It is understood that referring to fig. 2, the cavity 102 has a first side 150, and the door 108 has a second side 152. The first face 150 may be a surface within the cavity 102 opposite the drawer 104. The distance between the cavity 102 and the door 108 refers to the distance between the first surface 150 of the cavity 102 and the second surface 152 of the door 108. With the drawer 104 in the closed position, the distance between the cavity 102 and the door 108 is the internal length L of the cavity 102. The internal length L of the cavity 102 is the distance between the first face 150 to the card 116. It is understood that in other embodiments, the first surface 150 may also be a surface of a front side plate of the cavity 102, and the invention is not limited thereto.

At least one of the chamber 102 and the door 108 may be provided with a distance sensor (not shown) for detecting a distance between the chamber 102 and the door 108. The distance sensor may be a photosensor. The photosensor includes a transmitter, a receiver, and a detection circuit. The transmitter may be a light emitting diode and the receiver may be a light sensitive diode. For example, the transmitter and the receiver are both disposed on the second face 152 of the door 108. The emitter emits light to the first surface 150, and the light is reflected back through the first surface 150 and received by the receiver. The detection circuit can detect the time length from the light emitting time to the light receiving time, and then calculate the distance between the cavity 102 and the door 108 according to the time length. The distance sensor may also be an ultrasonic sensor or the like that can be used to detect a distance.

Referring to fig. 9, step S14 includes:

step S141: judging whether the distance is smaller than a first distance D1;

step S143: in the case that the distance is less than the first distance D1, determining whether the distance is less than a second distance D2;

step S145: in the case where the distance is not less than the first distance D1, determining that the drawer 104 is in the first stroke S1;

step S147: in the event that the distance is less than the first distance D1 and not less than the second distance D2, determining that the drawer 104 is at the second stroke S2;

step S149: in the case where the distance is less than the second distance D2, determining that the drawer 104 is in the third stroke S3;

wherein the first distance D1 is greater than the second distance D2.

It will be appreciated that in the illustrated embodiment, the first distance D1 is the internal length L of the cavity 102 + the third stroke S3+ the second stroke S2, and the second distance D2 is the internal length L of the cavity 102 + the third stroke S3.

Referring to fig. 10, in some embodiments, step S10 includes:

step S16: obtaining the movement distance of the drawer 104 relative to the cavity 102;

step S18: it is determined whether the drawer 104 is at the first stroke S1, the second stroke S2, or the third stroke S3 according to the moving distance.

It will be appreciated that referring to fig. 2 and 6, an end 154 of the drawer 104 is always located within the cavity 102. The distance of movement of the drawer 104 relative to the cavity 102 refers to the distance of movement of the end face 154 of the drawer 104 relative to the first face 150 of the cavity 102. The moving distance may also be detected and obtained by a distance sensor, and the specific embodiment may refer to the above embodiment, which is not described herein again.

In some embodiments, a control method comprises: receiving an opening signal and controlling the motor 106 to rotate in a first direction according to the opening signal to open the drawer 104; receives the closing signal and controls the motor 106 to rotate in the second direction to close the drawer 104 according to the closing signal. The first direction is opposite to the second direction.

It is understood that the home appliance 100 is provided with an on button (not shown) and an off button (not shown). The on button is used to generate an on signal and the off button is used to generate an off signal. The user controls the motor 106 to rotate in a first direction to open the drawer 104 or controls the motor 106 to rotate in a second direction to close the drawer 104 by operating the open button and the close button. The first direction may be a forward direction of the motor 106 and the second direction may be a reverse direction of the motor 106. The on button and the off button may be physical buttons or virtual buttons.

Referring to fig. 1-3, a household appliance 100 according to an embodiment of the present invention includes a processor 156, a chamber 102, a drawer 104 connected to the chamber 102, and a motor 106 for driving the drawer 104 to move back and forth relative to the chamber 102. The moving stroke S of the drawer 104 includes a first stroke S1, a second stroke S2, and a third stroke S3. The first stroke S1 is an initial stage of the closing stroke of the drawer 104 or an end stage of the opening stroke of the drawer 104. The second stroke S2 is an intermediate portion of the closing stroke or the opening stroke. The third stroke S3 is the end segment of the closing stroke or the start segment of the opening stroke. The processor 156 is connected to the motor 106 and is configured to control the motor 106 to drive the drawer 104 to move at the first stroke S1 with the first torque, to control the motor 106 to drive the drawer 104 to move at the second stroke S2 with the second torque, and to control the motor 106 to drive the drawer 104 to move at the third stroke S3 with the third torque. Wherein the third torque is greater than the second torque and the first torque.

That is, the steps S10, S20, S30, and S40 of the above-described control method may be implemented by the processor 156.

In the household appliance 100 according to the embodiment of the present invention, the motor 106 is controlled to drive the drawer 104 to move with different torques during the opening and closing of the drawer 104, and the motor 106 is controlled to drive the drawer 104 with a larger torque during the ending period of the closing stroke and the starting period of the opening stroke. Therefore, the drawer 104 can be ensured to have enough force to overcome resistance in the switching process of the switch state, so as to be smoothly opened and closed; and can prevent the occurrence of accidents such as pinching fingers of a user in the switching process, thereby improving the safety of the household appliance 100 in use.

It is understood that the processor 156 includes a controller, such as an MCU (micro controller Unit). The processor 156 is a control center of the home appliance 100, and connects various parts of the entire home appliance 100 using various interfaces and lines.

It should be noted that the explanation and the advantageous effects of the control method of the household appliance 100 of the above embodiment are also applicable to the household appliance 100 of the embodiment of the present invention, and are not detailed herein to avoid redundancy.

In some embodiments, the second torque is greater than the first torque.

In some embodiments, the household appliance 100 includes a distance sensor coupled to the processor 156. The drawer 104 is provided with a door 108. At least one of the cavity 102 and the door 108 is provided with a distance sensor. The distance sensor is used for detecting the distance between the cavity 102 and the door 108. The processor 156 is for obtaining the distance, and for determining whether the drawer 104 is in the first stroke S1, the second stroke S2, or the third stroke S3 based on the distance.

That is, the steps S12 and S14 of the above-described control method may be implemented by the processor 156.

In certain embodiments, the processor 156 is configured to determine that the drawer 104 is in the first stroke S1 if the distance is not less than the first distance D1, and to determine that the drawer 104 is in the second stroke S2 if the distance is less than the first distance D1 and not less than the second distance D2, and to determine that the drawer 104 is in the third stroke S3 if the distance is less than the second distance D2. Wherein the first distance D1 is greater than the second distance D2.

That is, step S145, step S147, and step S149 of the above-described control method may be implemented by the processor 156.

In some embodiments, the processor 156 is configured to obtain a movement distance of the drawer 104 relative to the cavity 102, and to determine whether the drawer 104 is in the first stroke S1, the second stroke S2, or the third stroke S3 according to the movement distance.

That is, the steps S16 and S18 of the above-described control method may be implemented by the processor 156.

In some embodiments, the processor 156 is configured to receive an open signal and control the motor 106 to rotate in a first direction to open the drawer 104 according to the open signal, and is configured to receive a close signal and control the motor 106 to rotate in a second direction to close the drawer 104 according to the close signal. The first direction is opposite to the second direction.

In some embodiments, the household appliance 100 includes an on button and an off button. The on button is used to generate an on signal and the off button is used to generate an off signal.

Referring to fig. 1 and 3, in the present invention, the household appliance 100 includes a housing 158, and a cavity 102 is disposed in the housing 158. The front side of the casing 158 near the door 108 is provided with a control panel 160. The processor 156 may be integrated into the control panel 160 with an on button and an off button provided on the control panel 160.

Further, the household appliance 100 comprises a microwave assembly 162. A microwave assembly 162 is mounted within the housing 158 and is used to emit microwaves into the cavity 102. Specifically, the home appliance 100 of the present embodiment is a drawer type microwave oven, and the microwave assembly 162 includes a high voltage transformer 164, a magnetron 166, and a waveguide 168. The high voltage transformer 164 is connected to the magnetron 166 and is disposed at the rear of the cavity 102, and the waveguide 168 is disposed at the top of the cavity 102. The high voltage transformer 164 and the magnetron 166 generate microwaves, which are introduced into the cavity 102 through the waveguide 168 at the top of the cavity 102 to perform microwave cooking.

The computer-readable storage medium of an embodiment of the present invention has stored thereon a computer program that, when executed by a processor, implements the steps of the control method of the above-described embodiment.

The computer readable storage medium of the embodiment of the present invention controls the motor 106 to drive the drawer 104 to move with different torques during the opening and closing of the drawer 104, and controls the motor 106 to drive the drawer 104 with a larger torque during the end of the closing stroke and the start of the opening stroke. Therefore, the drawer 104 can be ensured to have enough force to overcome resistance in the switching process of the switch state, so as to be smoothly opened and closed; and can prevent the occurrence of accidents such as pinching fingers of a user in the switching process, thereby improving the safety of the household appliance 100 in use.

It will be appreciated that the computer program comprises computer program code. The computer program code may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable storage medium may include: any entity or device capable of carrying computer program code, recording medium, U-disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), software distribution medium, and the like.

It should be noted that the explanation and advantageous effects of the control method of the home appliance 100 of the above embodiment are also applicable to the computer-readable storage medium of the embodiment of the present invention, and are not detailed herein to avoid redundancy.

In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.

The logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processing module-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions.

It should be understood that portions of embodiments of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.

In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A control method of a household appliance is characterized in that the household appliance comprises a cavity, a drawer connected with the cavity and a motor driving the drawer to move back and forth relative to the cavity, the moving stroke of the drawer comprises a first stroke, a second stroke and a third stroke, the first stroke is a starting section of a closing stroke of the drawer or an ending section of an opening stroke of the drawer, the second stroke is a middle section of the closing stroke or the opening stroke, the third stroke is the ending section of the closing stroke or the starting section of the opening stroke,

the control method comprises the following steps:

2. The control method according to claim 1, characterized in that the second torque is larger than the first torque.

3. The control method according to claim 1, wherein a door body is mounted to the drawer, the control method comprising:

acquiring the distance between the cavity and the door body;

4. The control method of claim 3, wherein determining whether the drawer is in the first stroke, the second stroke, or the third stroke based on the distance comprises:

wherein the first distance is greater than the second distance.

5. The control method according to claim 1, characterized by comprising:

acquiring the movement distance of the drawer relative to the cavity;

6. The control method according to claim 1, characterized by comprising:

7. A household appliance is characterized by comprising a processor, a cavity, a drawer connected with the cavity and a motor driving the drawer to move back and forth relative to the cavity, wherein the moving stroke of the drawer comprises a first stroke, a second stroke and a third stroke, the first stroke is a starting section of a closing stroke of the drawer or an ending section of an opening stroke of the drawer, the second stroke is a middle section of the closing stroke or the opening stroke, the third stroke is an ending section of the closing stroke or a starting section of the opening stroke, the processor is connected with the motor and is used for controlling the motor to drive the drawer to move on the first stroke with a first torque, controlling the motor to drive the drawer to move on the second stroke with a second torque and controlling the motor to drive the drawer to move on the third stroke with a third torque, wherein the third torque is greater than the second torque and the first torque.

8. The household appliance according to claim 7, wherein the second torque is greater than the first torque.

9. The household appliance according to claim 7, wherein the household appliance comprises a distance sensor connected with the processor, the drawer is provided with a door body, at least one of the cavity and the door body is provided with the distance sensor, the distance sensor is used for detecting the distance between the cavity and the door body, and the processor is used for acquiring the distance and determining whether the drawer is in the first stroke, the second stroke or the third stroke according to the distance.

10. The household appliance of claim 9, wherein the processor is configured to determine that the drawer is in the first stroke if the distance is not less than a first distance, and to determine that the drawer is in the second stroke if the distance is less than the first distance and not less than a second distance, and to determine that the drawer is in the third stroke if the distance is less than the second distance, wherein the first distance is greater than the second distance.

11. The household appliance of claim 7, wherein the processor is configured to obtain a movement distance of the drawer relative to the cavity, and to determine whether the drawer is in the first stroke, the second stroke, or the third stroke according to the movement distance.

12. The household appliance of claim 7, wherein the processor is configured to receive an on signal and control the motor to rotate in a first direction to open the drawer according to the on signal, and configured to receive an off signal and control the motor to rotate in a second direction to close the drawer according to the off signal, the first direction being opposite to the second direction.

13. A computer-readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, carries out the steps of the control method according to any one of claims 1 to 6.