CN113048711A - Automatic door opening control method and automatic door opening device for household electrical appliance - Google Patents

Abstract

The invention provides an automatic door opening control method, which comprises the following steps: acquiring state information of an automatic door opening device; judging whether the state information of the automatic door opener is effective or not; if the state information of the automatic door opening device is valid, an automatic door opening signal is obtained; and analyzing the automatic door opening signal to configure an automatic door opening device push rod to open the household appliance door body. The invention also provides an automatic door opening device applying the automatic door opening control method. According to the invention, the automatic door opening device automatically opens the household appliance door body by acquiring the automatic door opening signal and based on the automatic door opening signal, so that the problem that a large amount of heat is generated when the door body is passively and frequently opened is solved.

Description

Automatic door opening control method and automatic door opening device for household electrical appliance

Technical Field

The invention relates to the technical field of household appliances, in particular to an automatic door opening control method and an automatic door opening device for household appliances.

Background

With the improvement of living standard, intelligent household appliances are increasingly popular and accepted in the market. At present, a user tends to a refrigerator with a large volume, but the suction force of a refrigerator door seal with the large volume is also large, and the force required by the user to open the refrigerator door body is reduced through an automatic door opening device in the existing automatic door opening, so that the passive automatic door opening is realized. The automatic door opening device in the form usually has the problem that the heat is concentrated due to repeated opening and closing of the door body, so that the service life of the automatic door opening device is influenced.

In addition, when a child repeatedly opens and closes the door of the refrigerator concentratedly, the automatic door opener cannot recognize and handle the operation, resulting in a temperature rise of the automatic door opener and even an abnormal temperature rise.

Therefore, the automatic door opening method and device need to be improved, the control method and the structural design of the automatic door opening device are optimized, and a novel automatic door opening control method and an automatic door opening device for household appliances are designed to solve the problems.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide an automatic door opening control method for a household appliance, which comprises the following steps: acquiring state information of an automatic door opening device; judging whether the state information of the automatic door opener is effective or not; if the state information of the automatic door opening device is valid, an automatic door opening signal is obtained; and analyzing the automatic door opening signal to configure an automatic door opening device push rod to open the household appliance door body.

Preferably, if the status information of the automatic door opener is invalid, a prompt message is sent.

Preferably, the method for controlling the automatic door opening of the household appliance further comprises the steps of obtaining the interval duration of the current automatic door opening signal and the last automatic door opening signal, and when the interval duration is smaller than a first threshold, not triggering the automatic door opening device to start; and when the interval duration is not less than the first threshold, triggering the automatic door opening device to start.

Preferably, the first threshold is set according to the category of the acquired automatic door opening signal.

Preferably, the method for controlling the automatic door opening of the household appliance further comprises the steps of obtaining the continuous starting times of the automatic door opening device, and when the continuous starting times are larger than a second threshold value and the automatic door opening device is triggered again to start, controlling the push rod to move towards the household appliance door body after a set time; when the continuous starting times are not more than the second threshold value, the push rod is controlled to move towards the household appliance door body when the automatic door opening device is triggered again to start.

Preferably, the automatic door opening signal is a voice signal and/or a knocking signal.

Preferably, when the automatic door opening signal is a voice signal and a knocking signal, a voice signal is acquired; analyzing the voice signal to judge the validity of the voice signal; if the voice signal is effective, collecting a knocking signal of the target door body; and analyzing the knocking signal of the target door body to configure an automatic door opening device push rod to open the household appliance door body.

Preferably, when the automatic door opening device opens the household appliance door body based on the automatic door opening signal, pressure information of the push rod is acquired to judge whether the automatic door opening device is in normal operation.

The second object of the present invention is to provide an automatic door opening device, which includes a main control board configured to execute a computer program of the automatic door opening control method for a household appliance, wherein the main control board obtains an automatic door opening signal and causes the automatic door opening device to open a household appliance door body based on the automatic door opening signal.

Preferably, the automatic door opener comprises an electromagnetic induction module; the main control board obtains an automatic door opening signal, the automatic door opening signal triggers the electromagnetic induction module to be started, and the household appliance door body is opened through the output top shaft under the electromagnetic induction effect.

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the automatic door opening control method provided by the invention, the automatic door opening of the household appliance door body is realized by acquiring the automatic door opening instruction, and the passive frequent door opening automatic door opening device is prevented from generating a large amount of heat.

(2) In a preferred scheme, the main control board obtains the interval duration of two automatic door opening signals, and the interval duration is compared with a first threshold value, so that the situation that the automatic door opening device cannot dissipate heat and the temperature continuously rises due to repeated opening and closing of the refrigerator door body is prevented.

(3) In a preferred scheme, the main control board obtains the continuous starting times of the automatic door opening device, and the automatic door opening device is compared with a second threshold value to prevent the automatic door opening device from being too late to dissipate heat and continuously increasing the temperature due to repeated opening and closing of the refrigerator door body.

(4) In a preferred scheme, the main control board opens the appointed door body of the double-door refrigerator through the combined use of voice instructions and knocking instructions, and meanwhile, the automatic door opening signal can be prevented from being triggered by children by mistake.

The foregoing description is only an overview of the technical solutions of the present invention, and some embodiments are described in detail below in order to make the technical solutions of the present invention more clearly understood and to implement the technical solutions according to the content of the description. Specific embodiments of the present invention are given in detail by the following examples.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a schematic structural view of a first housing of an automatic door opener for home appliances according to the present invention;

FIG. 2 is a schematic view of the internal structure of an automatic door opener for home appliances of the present invention;

FIG. 3 is a schematic view of a base structure according to the present invention;

FIG. 4 is a schematic structural diagram of an electromagnetic induction module according to the present invention;

FIG. 5 is a partial structural view of a base with a conical coil spring according to the present invention;

FIG. 6 is a schematic view of the overall structure of a refrigerator according to the present invention;

FIG. 7 is a schematic flow chart of an automatic door opening control method according to the present invention;

FIG. 8 is a schematic flow chart illustrating an automatic door opening control method including a duration of a continuous start interval of an automatic door opening signal according to the present invention;

FIG. 9 is a schematic flow chart of an automatic door opening control method including obtaining the number of consecutive starts of the automatic door opening device according to the present invention;

fig. 10 is a flowchart illustrating an automatic door opening control method when the automatic door opening signal is a voice signal and a tapping signal according to the present invention.

In the figure:

200. a refrigerator;

100. automatic door opener of household electrical appliances: 11. first casing, 111, through-hole, 12, base, 121, fixing base, 122, open slot, 123, first recess, 124, second recess, 125, first district of placing, 126, the district is placed to the second, 127, fretwork portion, 13, main control board, 14, elastic component, 15, bolster, 16, output apical axis, 17, electromagnetic induction module, 18, conflict portion, 19, second casing, 191, mount pad, 192, rubber pad, 193, first extension, 194, the second extension, 195, the mounting groove.

Detailed Description

The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, which will enable those skilled in the art to practice the present invention with reference to the accompanying specification. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are used based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

Example one

As shown in fig. 1 to 9, an automatic door opening control method for an electric appliance, in one embodiment, the electric appliance is a refrigerator. The method comprises the following steps:

as shown in figure 7 of the drawings,

s101: state information of the automatic door opening device 100 is acquired, and particularly, a main control board of the refrigerator 200 acquires the state information of the automatic door opening device 100 through a sensor provided on the automatic door opening device. In one embodiment, the initial pressure of the push rod of the automatic door opener is obtained by a pressure sensor arranged on the push rod. Further, the sensor may be a position sensor or other sensor. The automatic door opener comprises an electromagnetic induction module.

S102: judging whether the state information of the automatic door opener is effective or not; specifically, the main control board of the refrigerator 200 determines whether the automatic door opener can be normally used through a signal sent by a sensor disposed on the automatic door opener. When the sensor is a pressure sensor, if the initial pressure is 0 or the initial pressure is small, the initial pressure is not enough to enable the household appliance door body to be separated from the magnetic seal (the initial pressure is generally within 10N), the effectiveness of the automatic door opening device is judged; if the pressure value of the sensor on the push rod is detected to be larger, the automatic door opening device is judged to be out of work and needs to be maintained when the household appliance door body is separated from the magnetic seal.

S103: if the status information of the automatic door opener 100 is valid, an automatic door opening signal is acquired. Specifically, if the automatic door opening device 100 can be used normally, the automatic door opening signal given by the user is acquired. The user may provide an automatic door opening signal in the form of input information, or may provide an automatic door opening signal to the main control board 13 in the form of voice, tapping, or the like. In one embodiment, the automatic door opening signal is one or more of a voice signal, a tapping signal or a touch signal. When the refrigerator is a single-door refrigerator, the automatic door opening signal is any one of a voice signal, a knocking signal or a touch signal. When the refrigerator is a double-door or multi-door refrigerator, the automatic door opening signal is a plurality of combinations of a voice signal, a knocking signal or a touch signal. In one embodiment, when the refrigerator is a double-door refrigerator, a user gives voice information, and the voice information is collected by a voice collecting module on the refrigerator and is transmitted to a voice recognition module; the voice recognition module recognizes voice information and transmits a voice recognition result to the main control board, the main control board collects a knocking signal of a user through a sensor on the refrigerator, and an automatic door opening signal which is expected to be opened by the user and corresponds to a refrigerator door body is formed at the moment.

S104: and analyzing the automatic door opening signal to configure an automatic door opening device push rod to open the household appliance door body. The main control board 13 analyzes which signals belong to the signals for automatically opening the door according to the acquired signals for automatically opening the door, and configures a push rod of the automatic door opening device to execute the action of automatically opening the door according to the analyzed signals. In one embodiment, the electromagnetic induction module 17 is triggered to start according to the automatic door opening signal, so that the automatic door opening device opens the household appliance door body. Specifically, the main control board 13 is triggered according to the automatic door opening signal to supply power to the solenoid, an electromagnetic field is generated after the solenoid is electrified, the magnetic force of the electromagnetic field pushes the output top shaft 16 to move towards the household appliance door body, and the output top shaft 16 drives the push rod to move towards the household appliance door body.

In one embodiment, in S102, if the state information of the automatic door opener 100 is invalid, a prompt message is sent to prompt the user to open the household appliance door body through an external force; specifically, if the automatic door opener 100 is in an abnormal state, that is, the automatic door opener 100 is damaged and cannot normally operate, that is, the automatic door opener 100 cannot operate, the main control board prompts the user of the situation through voice, text display and other forms, and the user can timely maintain the automatic door opener. At this time, the door body of the home appliance can be opened by an external force, for example, manually.

In one embodiment, in S104, when the push rod opens the household appliance door body, the method includes controlling the push rod to move toward the household appliance door body until the household appliance door body is opened to an angle. The push rod is controlled to move towards the direction of the household appliance door body until the household appliance door body is opened to an angle (an included angle formed by the initial state of the household appliance door body and the current state of the household appliance door body) so as to provide a space for a user to take and/or place articles. Specifically, in an embodiment, when the automatic door opening device includes the electromagnetic induction module 17, the main control board controls the output top shaft 16 to move toward the household appliance door body so as to open the household appliance door body. In order to facilitate the user to take and/or hold articles, the output top shaft 16 has a preset stroke when moving towards the household appliance door body, and the preset stroke determines the maximum angle at which the push rod pushes the refrigerator door body to rotate. Preferably, the opening angle of the household appliance door body is between 90 and 180 degrees, and the preset stroke of the push rod is calculated through the angle.

In one embodiment, as shown in FIG. 8, S104 is replaced with S204-S206. The automatic door opening control method for the household appliance also comprises the steps of,

s204, acquiring the interval duration of the automatic door opening signal of the time and the automatic door opening signal of the last time, namely acquiring the interval duration of the automatic door opening signal of the time and the automatic door opening signal of the last time through a sensor or a timer.

And S205, comparing the acquired interval duration with the first threshold, namely, the interval duration is less than or not less than the first threshold.

S206, when the interval duration is less than a first threshold value, the automatic door opening device is not triggered to start, namely the push rod is not configured to move towards the household appliance door body; when the interval duration is not less than the first threshold value, the automatic door opening device is triggered to start, namely the push rod is configured to move towards the household appliance door body. Specifically, when the interval duration is less than a first threshold, controlling the electromagnetic induction module not to trigger the electromagnetic induction module to start; and when the interval duration is not less than the first threshold, controlling the electromagnetic induction module to trigger the electromagnetic induction module to start. The first threshold is set by a user in a self-defined mode, and in another embodiment, the first threshold is a first threshold calculated by the main control board according to energy consumption and the like. When the interval duration is less than the first threshold value, an automatic door opening instruction is frequently sent to the refrigerator in a short time, and at the moment, the main control panel obtains an automatic door opening signal but does not configure a push rod to move towards the direction of the household appliance door body. When the interval duration is not less than the first threshold value, the refrigerator door opening requirement of normal requirement is met, and the main control panel is provided with the push rod to move towards the household appliance door body. By the mode, the situation that the door is opened and closed continuously in a centralized manner in an undesirable manner is avoided, and the electromagnetic induction module is controlled not to be overheated.

And the first threshold value is set according to the category of the acquired automatic door opening signal. Specifically, in one embodiment, the main control board acquires information such as user voice, height and the like through the sensor, confirms the user type, and sets a first threshold value for a child if the target user is found to be the child through processing the acquired user information. If the target user is found to be an adult by processing the acquired user information, a first threshold value for the adult is set. The first threshold for a child is different from the first threshold for an adult, and in one embodiment, the first threshold for a child is greater than the first threshold for an adult, i.e., the automatic door opener allows an adult to continuously open and close a refrigerator door in a shorter period of time; prevent children from frequently opening the household appliance door body due to playing.

It should be understood that the first threshold for children and the first threshold for adults are only one example, and the first threshold may be set according to actual needs to meet actual needs of users. In addition, to cope with bursty conditions.

In one embodiment, as shown in FIG. 9, S104 is replaced with S304-S306. The automatic door opening control method for the household appliance also comprises the steps of,

s304: and acquiring the continuous starting times of the automatic door opening device. In one embodiment, after the automatic door opening signal is obtained, the number of times that the automatic door opening device has been continuously started in a time period can be obtained through a sensor or a counter. The period of time may be defined by the main control board, such as 1 minute, 2 minutes, etc. The time period can be set by a user in a customized way. Generally, the period of time refers to a time period that is short.

S305: and comparing the number of continuous starting with the size of the second threshold value, namely, the number of continuous starting is greater than or not greater than the second threshold value.

S306: when the continuous starting times are larger than a second threshold value, the electromagnetic induction module is triggered again to start, the output top shaft is controlled to move towards the household appliance door body after a set time length, and prompt information is sent out; when the continuous starting times are not more than the second threshold value, the electromagnetic induction module 17 is triggered again to start, and the output jacking shaft is controlled to move towards the direction of the household appliance door body. The second threshold is set by a user or provided by the main control board, and the electromagnetic induction module is allowed to be started continuously. In an embodiment, when the second threshold is twice, and the electromagnetic induction module 17 is continuously started twice, the user sends out the automatic door opening signal again, and the main control board controls the electromagnetic induction module 17 to delay 5 minutes to push the output top shaft 16 to move towards the refrigerator door. The set time length can be set by a user in a self-defined mode or provided by the main control board.

In one embodiment, the automatic door opening signal is a voice signal and/or a tap signal. Namely, the main control board can acquire the voice information and/or the knocking instruction of the user through the sensor to be used as an automatic door opening signal to trigger the electromagnetic induction module 17 to work. When the automatic door opening signal is a voice signal, voice information is collected through the voice collection module and transmitted to the voice recognition module; the voice recognition module recognizes voice information and transmits a voice recognition result to the main control board; and the main control board judges whether the command is a door opening command or not according to the voice recognition result, if so, the main control board executes the command, and if not, the main control board executes a normal conversation program. When the automatic door opening signal is a knocking signal, the knocking force and the knocking frequency on the refrigerator door body are collected through a sensor on the refrigerator door body; judging whether the knocking force is in a set force range or not and whether the knocking frequency is in a set frequency range or not; and if so, controlling the refrigerator door body to open. The knocking force and the knocking frequency can be set by a user in a self-defined way or provided by a main control board correspondingly.

As shown in fig. 10, in an embodiment, when the refrigerator is a double-door refrigerator, the electromagnetic induction module may be triggered to start by a voice signal and a tap instruction.

S401, acquiring a voice signal, namely acquiring the voice signal given by a user through a voice acquisition module on the refrigerator or the automatic door opening device by the main control board.

S402: the voice signal is analyzed to determine the validity of the voice signal. Specifically, voice information is collected through a voice collection module on the refrigerator and transmitted to a voice recognition module on the main control board; the voice recognition module recognizes the voice information and transmits a voice recognition result to the main control board so as to judge the validity of the door opening instruction.

S403: and if the voice signal is effective, acquiring a knocking signal of the target door body. Specifically, if the voice signal is a valid door opening instruction (a voice instruction issued by non-children playing, etc.), the main control board collects a knocking signal of the user.

S404: and analyzing the knocking signal of the target door body to configure an automatic door opening device push rod to open the household appliance door body. Specifically, the main control board analyzes the knocking signal and configures a target electromagnetic induction module on a target door body corresponding to the knocking signal to start; and controlling the output top shaft of the target electromagnetic induction module to move towards the target door body of the refrigerator. In this embodiment, the target door body of the multi-door refrigerator is opened by the combination of two commands. In addition, the situation that the child mistakenly triggers the refrigerator to open the door through a single automatic door opening signal can be avoided.

In one embodiment, when the refrigerator is a multi-door refrigerator, the automatic door opening devices are respectively disposed at the upper end and/or the lower end of the refrigerator body to perform corresponding processes.

And when the automatic door opening device is controlled to open the household appliance door body based on the automatic door opening signal, pressure information of the push rod is acquired so as to judge whether the automatic door opening device is in normal operation. In an embodiment, when the output top shaft 16 includes a pressure sensor (the pressure sensor is disposed at the end of the output top shaft 16, that is, at the end close to the household appliance door body), after the electromagnetic induction module is triggered to start by acquiring the automatic door opening signal, the pressure sensor can sense the door opening force of the output top shaft 16, so as to know the door opening force of the automatic door opening device, and when the door opening force is greater than 65N, the device is prompted to fail, and needs to be detected and maintained. And when the door opening force is less than or equal to 65N, the automatic door opening device normally operates. In a preferred embodiment, the opening force is preferably 50N to ensure that the automatic door opener will not damage the equipment when a hard object is in front of the door during the activation process. The magnitude of the door opening force can be realized by controlling the magnitude of the current.

Example two

As shown in fig. 1 to 6, an automatic door opening apparatus 100 for home appliances is used to automatically open a door of a home appliance, such as a refrigerator, a washing machine, a microwave oven, etc. In one embodiment, the appliance is embodied as a refrigerator. An automatic door opener comprises a main control board 13, wherein the main control board 13 is configured to execute a computer program of the automatic door opening control method of household appliances, and the main control board 13 obtains an automatic door opening signal and enables the automatic door opener to open a household appliance door body based on the automatic door opening signal.

As shown in fig. 2, the automatic door opening device 100 for home appliances includes an electromagnetic induction module 17, and the electromagnetic induction module 17 is fixed on the home appliance box; in one embodiment, the electromagnetic induction module 17 is partially embedded in the household appliance box body, so that the volume occupied by the automatic door opener is reduced, and the electromagnetic induction module is not influenced to trigger the columnar push rod to move towards the refrigerator door body. The electromagnetic induction module 17 includes a solenoid, an output top shaft 16, and the solenoid is slidably connected to the output top shaft 16 so that the output top shaft 16 can slide in the solenoid. The output top shaft 16 does not contact the household appliance door body in an initial state (under the condition that the household appliance door body is closed), namely, has a certain distance with the household appliance door body; or against the appliance door body but not so much as to cause the appliance door body to break away from the magnetic seal. In one embodiment, the output top shaft 16 is a core; in another embodiment, the output top shaft 16 is composed of an iron core and a push rod, the solenoid drives the iron core to move after being electrified, and the iron core drives the push rod connected with the iron core to move towards the direction of the household appliance door body. The automatic door opening device also comprises a main control board 13, wherein the main control board 13 is arranged close to the electromagnetic induction module 17, so that the automatic door opening device is convenient to expand on any household appliance; the main control board 13 triggers the electromagnetic induction module 17 to start after acquiring an automatic door opening signal, so that the solenoid is powered on, and the output top shaft 16 in the solenoid moves towards the household appliance door body to separate from magnetic sealing to eject out the household appliance door body according to the electromagnetic effect. In one embodiment, the output top shaft 16 continues to move until the household appliance door body is opened to an angle to provide a space for a user to take and/or place articles, that is, an angle formed by a plane where the household appliance door body is located at present and a plane where the household appliance door body is located in an initial state is convenient for the user to take and/or place articles.

In one embodiment, as shown in fig. 1, 3 and 4, the automatic door opening device 100 for home appliances includes a base 12, and the base 12 is fixed on or in a cabinet of a refrigerator 200. The base 12 may be disposed on the top of the refrigerator cabinet or on the bottom of the refrigerator cabinet. In one embodiment, when the household appliance is a single-door refrigerator, the base 12 is arranged on one side of a refrigerator body away from a hinge of a refrigerator door body; in one embodiment, when the appliance is a double-door refrigerator, the base 12 is disposed on a side of the refrigerator body away from each of the hinges of the refrigerator door. The base 12 is provided with a plurality of installation parts, and the base 12 is installed in the refrigerator body through the installation parts. The base 12 further includes a second housing 19, the second housing 19 is a housing extending along a direction, and the electromagnetic induction module 17 is disposed in the second housing 19, that is, the second housing 19 wraps the periphery of the electromagnetic induction module 17. The second housing 19 further includes at least one first extension 193, the first extension 193 extends along the moving direction of the output top shaft 16, and the base 12 is integrally formed or assembled with the second housing 19. In one embodiment, when there are two first extending portions 193, the two first extending portions 193 are respectively disposed on two sides of the second housing 19, that is, the two first extending portions 193 are respectively disposed on two sides of the electromagnetic induction module 17.

In one embodiment, the base 12 further comprises at least two mounting seats 191 respectively disposed at two ends of the automatic door opener body to provide support for the automatic door opener body. In one embodiment, the automatic door opener body is an electromagnetic induction module 17, the mounting seats 191 are respectively arranged at two ends of the electromagnetic induction module 17, and the electromagnetic induction module 17 is fixed on the mounting seats 191 through additional structures distributed on the electromagnetic induction module 17. In one embodiment, the additional structure is a securing ear. The mount 191 is disposed along the moving direction of the output top shaft 16. As shown in fig. 4, the first extension 193 further includes at least one mounting groove 195, and the mounting groove 195 is mounted on the mounting seat 191 to fix the third housing 19 to the second housing 12. In one embodiment, the refrigerator further comprises at least one shock-absorbing member fixed to the mounting seat 191 through the mounting groove 195 to reduce noise for the start of the automatic door opening device of the refrigerator. In one embodiment, when the shock absorbing member is a rubber pad 192, the rubber pad 192 is a double-layer rubber pad, and the rubber pad 192 is sleeved on the mounting seat 191 through a mounting groove 195. When the rubber pad is circular, the mounting groove 195 is also approximately circular. Preferably, the mounting seat 191 is provided along the moving direction of the output top shaft 16, and in this case, a shock-absorbing rubber pad may be provided on the mounting seat 191 to reduce the vibration of the output top shaft 16 during the movement.

As shown in fig. 3, the surface of the base 12 on which the automatic door opener of the home appliance is placed includes a hollow 127. Hollow portion 127 is located the bottom of electromagnetic induction module, is located the below of electromagnetic induction module promptly, and hollow portion 127 extends along the extending direction of base 12 and is used for providing the heat dissipation region for the automatic door opener of household electrical appliances, hollow portion 127 is used for the heat conduction that the automatic door opener of household electrical appliances produced extremely the household electrical appliances box, the household electrical appliances box has great surface area, carries out the heat exchange in order to realize the heat dissipation of the automatic door opener of household electrical appliances with the surrounding environment. In one embodiment, the heating source in the automatic door opening device of the household appliance is a motor, an electromagnetic induction module and the like.

In one embodiment, the size of the hollow portion 127 is smaller than the size of the electromagnetic induction module 17, so that the electromagnetic induction module 17 is partially placed on the hollow portion 127. In one embodiment, the size of the hollow portion 127 is smaller than that of the electromagnetic induction module 17, that is, a partial area of the electromagnetic induction module 17 cannot directly dissipate heat through the hollow portion 127; however, the electromagnetic induction module 17 can be directly placed on the hollow portion 127 without any mounting/fixing/supporting structure.

In an embodiment, the body of the automatic door opener for a home appliance is the electromagnetic induction module 17, when the size of the hollow portion 127 is greater than or equal to the size of the electromagnetic induction module, the base 12 further includes at least two mounting seats 191, and the electromagnetic induction module 17 is fixed on the base 12 through the mounting seats 191.

In an embodiment, as shown in fig. 2 and 3, the second casing 19 further includes a second extending portion 194, the second extending portion 194 extends along the hollow portion 127 to enable the second casing 19 to be sleeved in the hollow portion 127, and a length of the second extending portion 194 may be equal to a thickness of the hollow portion. In an embodiment, the length of the second extending portion is greater than the thickness of the hollow portion 127, so that a larger gap is formed between the second casing 19 and the refrigerator body for heat dissipation. In an embodiment, the second extending portions 194 extend along a plane perpendicular to the base 12, when there are only two second extending portions, the second extending portions 194 are disposed oppositely, and the second shell 19 is sleeved in the hollow portion 127 through the second extending portions 194 to provide a support for the second shell 19. In addition, due to the existence of the second extending portion 194, a larger gap is formed between the electromagnetic induction module 17 in the second housing 19 and the box body, and the gap is larger than the gap directly placed on the base, so that the electromagnetic induction module 17 has a larger heat exchange space for dissipating heat through the gap.

As shown in fig. 1, the automatic door opening device 100 further includes a first housing 11 fastened to the base 12. The first shell 11 may be provided with a gradient to form a wedge-shaped first shell. An installation space is formed between the base 12 and the first housing 11, and the electromagnetic induction module 17 is fixed in the installation space. The first housing 11 is further provided with a plurality of positioning holes for positioning and installation. A through hole 111 for the output top shaft 16 to move towards the refrigerator door body is formed in the first casing 11, and the size of the through hole 111 is similar to that of one end of the output top shaft close to the refrigerator door body, so that the output top shaft 16 can move freely. In one embodiment, the through hole 111 is disposed on the first housing 11, and in another embodiment, the base 12 and the first housing 11 together form the through hole 111.

The main control board 13 is arranged close to the electromagnetic induction module 17, so that the expansion of any household appliance is facilitated. As shown in fig. 2 and 3, in one embodiment, the main control board 13 is mounted on the base 12, and the base 12 is formed into an integral structure corresponding to the main control board 13 according to the shape or size of the main control board. The base 12 includes a first placing area 125 and a second placing area 126, the first placing area 125 is used for placing the electromagnetic induction module 17, the second placing area 126 is used for placing the main control board 13, and the area where the first placing area 125 is located on the adjacent side of the area where the second placing area 126 is located. In an embodiment, the main control board 13 and the automatic door opener 100 are arranged in the horizontal direction in the base, so that the space in the vertical direction (the standing direction of the household appliance) of the household appliance is saved, the household appliance is suitable for various application scenarios after the automatic door opener is installed, and the requirement of the household appliance on the installation environment is reduced. In addition, the main control board and the automatic door opening device are integrated on the base 13, so that the mounting structure for the automatic door opening device is convenient to expand on any refrigerator, and the original circuit of the refrigerator is minimally changed.

In an embodiment, when the base 12 includes the first placing area 125 and the second placing area 126, the first placing area 125 and the second placing area 126 can be disposed in front and back along a horizontal direction, that is, the whole area where the first placing area 125 is located and the area where the second placing area 126 is located are a straight line extending in front and back, so that a plurality of bases 12 arranged side by side in left and right directions can be conveniently installed on the household appliance box. In another embodiment, the main control board 13 and the electromagnetic induction module 17 may be distributed up and down (i.e. the direction in which the household appliance stands after being installed) in the space formed by the base 12 and the first housing 11, so as to save the space of the household appliance box in the horizontal direction.

In one embodiment, when the automatic door opening device 100 includes more than one electromagnetic induction module 17, different electromagnetic induction modules 17 may be connected to the main control board 13.

The output top shaft 16 further comprises an abutting portion 18, and the abutting portion 18 is an extending part arranged at the front end (the end close to the refrigerator door body) of the output top shaft 16 or an extending part arranged on one side face of the output top shaft 16. When the abutting portion 18 is an extension member provided at the front end of the output top shaft 16, the extension member is a boss, and the boss is rectangular, square, circular, or the like. When the interference part 18 is an extension part arranged on one side surface of the output top shaft 16, the length of the extension part is longer than that of the main body of the output top shaft 16, so that the refrigerator door body can be opened through the extension part in the refrigerator door opening process. In order to prevent the output top shaft 16 from damaging the refrigerator door 202, the front end of the interference portion 18 is preferably provided in an arc shape. In one embodiment, the interference portion 18 is a rubber cap. When the front end (the end close to the refrigerator door body) of the output top shaft 16 is provided with the collision part 18, the size of the through hole 111 formed on the first casing 11 for the output top shaft 16 to move towards the refrigerator door body is similar to that of the collision part 18, so that the collision part 18 can move freely in the through hole 111.

In one embodiment, as shown in fig. 2, an elastic member 15 is disposed between the output top shaft 16 and the base 12. The end, far away from the refrigerator door body, of the output top shaft 16 further comprises an elastic member 15, and the elastic member 15 is sleeved on the periphery of the output top shaft 16, so that the elastic member 15 drives the output top shaft 16 to restore to an initial position after the solenoid is powered off. The power-off time of the solenoid can be controlled by receiving an automatic door closing instruction, arranging a touch key on the refrigerator or arranging a timer on the refrigerator, and the main control board 13 is powered off after the refrigerator is opened for a period of time.

In one embodiment, as shown in fig. 2, the automatic door opening device 100 of the household appliance further includes a buffer 14, and the buffer 14 may be a compression spring, an anti-collision sponge, a buffer air cushion, or the like. The buffer piece 14 is located at one side far away from the household appliance door body, and the buffer piece 14 and one end, far away from the refrigerator door body, of the output top shaft 16 are arranged just opposite to each other so as to buffer impact force generated when the output top shaft rebounds. After the solenoid is powered off, the elastic member 15 drives the output top shaft 16 to rebound, and when the output top shaft 16 collides with the buffer 14, the buffer 14 smoothes the motion of the output top shaft 16.

In one embodiment, as shown in fig. 3, the base 12 further includes a fixing seat 121, and the fixing seat 121 fixes the buffer 14 on the base 12 from different sides of the buffer 14. The fixing seat 121 is integrally formed or assembled with the base 12. The assembly forming comprises screw connection, clamping connection, bonding and the like. In one embodiment, when the base 12 includes a first placement area 125 and a second placement area 126, the fixing seat 121 is located in the first placement area 125. The fixing seat 121 includes an opening groove 122 for the buffer member 14 to be inserted into, and the shape of the opening groove 122 is almost the same as the shape and size of the buffer member 14, so that the buffer member 14 is stably and lowly disposed in the opening groove 122. When the buffer 14 is a compression spring, the open slot 122 is a nearly arched open slot 122. Two sides of the fixing seat 121 are recessed inwards to form a first groove 123 and a second groove 124, and different sides of the buffer 14 are abutted against the first groove 123 and the second groove 124 respectively. In order to ensure that the buffer member 14 cannot be easily ejected from the fixing seat 121, in an embodiment, when the buffer member 14 is a compression spring, the compression spring is preferably a conical coil spring, that is, the diameter of the compression spring decreases progressively along the moving direction of the output top shaft, that is, the diameter of the buffer member 14 decreases progressively along the direction toward the household appliance door body.

In one embodiment, the output top shaft 16 includes a pressure sensor (not shown), and the pressure sensor may be disposed at one end of the output top shaft 16, that is, the end close to the household appliance door body. In one embodiment, a current pressure of the pressure sensor is obtained. If the pressure is 0, the output top shaft does not contact the household appliance door body, and the automatic door opening device is effective. In another embodiment, in the initial state, the output top shaft 16 contacts the household appliance door body but the contact force is small, so that the household appliance door body cannot be separated from the magnetic seal, and the initial pressure is not 0 but is small, and the value is between about 0N and 10N. The automatic door opening device 100 is still active at this time. At this time, the obtained initial pressure value may be used to verify whether the initial position of the output jack shaft is proper, and if the initial pressure applied to the output jack shaft 16 is greater than a value, it is prompted that the position of the output jack shaft needs to be adjusted. The numerical value specifically refers to the force with which the household appliance door body is separated from the magnetic seal.

The main control board 13 provides a current with a specific value for the solenoid, and the household appliance door body is ejected out by the output top shaft 16 in the solenoid according to the electromagnetic effect. A thrust of a certain strength is generated in view of the current of a certain value. In one embodiment, when the output top shaft 16 includes a pressure sensor (not shown), after the electromagnetic induction module is triggered to start by acquiring the automatic door opening signal, the pressure sensor can sense the door opening force of the output top shaft 16 so as to know the magnitude of the door opening force of the automatic door opener, and when the door opening force is greater than 65N, the magnitude of the current is prompted to change; or the automatic door opening device is prompted to be out of order and needs to be detected and maintained. And when the door opening force is less than or equal to 65N, the automatic door opening device normally operates. In a preferred embodiment, the opening force is preferably 50N to ensure that the automatic door opener will not damage the equipment when a hard object is in front of the door during the activation process. The magnitude of the door opening force can be realized by controlling the magnitude of the current.

In one embodiment, a position sensor and a pressure sensor are included. A position sensor is arranged on the base 12, and a blocking piece matched with the position sensor is arranged on the output top shaft 16; the one end of output apical axis 16 is close to the end of the household electrical appliances door body promptly and still includes pressure sensor, pressure sensor is used for instructing the initial pressure that the output apical axis received, and when initial pressure surpassed a numerical value after, the suggestion user in time maintains or adjusts the initial position of output apical axis. The numerical value specifically refers to the force that the household appliance door body cannot be separated from the magnetic seal. The position sensor is used for indicating whether the blocking piece of the output top shaft reaches a specified position. The indicating position is used for indicating whether the household appliance door body is opened or not, namely the household appliance door body is opened by the output top shaft 16 when the output top shaft 16 reaches the indicating position.

EXAMPLE III

As shown in fig. 1 to 6, in an embodiment of a refrigerator 200, the refrigerator 200 includes a cabinet for forming a closed space in the refrigerator, a door disposed at a front side of the refrigerator, and a magnetic gasket for keeping the door in a closed state. The upper end of the refrigerator body is the top of the refrigerator, and the refrigerator body is provided with a door body which is arranged on the front side of the refrigerator body and is opened or closed, namely a refrigerator door body. The box body comprises the automatic household appliance door opening device, and the automatic household appliance door opening device is used for opening and closing the door body on the box body.

One end of the output top shaft 16 of the automatic household door opening device 100 corresponds to a door body on one side of the refrigerator. When the refrigerator is a single-door refrigerator, one end of the output top shaft 16 of the automatic door opener 100 is used for abutting against and opening a door body sucked on the refrigerator body, namely, the tail end of the output top shaft 16 corresponds to the door body of the refrigerator to open the door body under the action of electromagnetic induction. When the refrigerator is a double-door refrigerator, the automatic door opening device comprises two output top shafts 16, one end of each output top shaft 16 is used for abutting against and opening a door body sucked on the refrigerator body, namely, the tail ends of the output top shafts 16 respectively correspond to the door bodies on two sides of the refrigerator so as to open the door bodies on two sides of the refrigerator respectively under the action of electromagnetic induction.

The automatic door opening device 100 for home appliances is disposed at the top or bottom of a refrigerator body to abut against the side edge of a door body through an output top shaft 16. When the automatic door opener is arranged at the top end of the refrigerator body, the automatic door opener is convenient to install and maintain; the automatic door opener can also be arranged at the bottom of the refrigerator body, and the use experience of customers can be improved after the automatic door opener is hidden.

As shown in fig. 1 to 6, in one embodiment, the automatic door opening device 100 for home appliances includes an electromagnetic induction module 17, wherein the electromagnetic induction module 17 is fixed on the home appliance box; in one embodiment, the electromagnetic induction module 17 is partially embedded in the household appliance box body, so that the volume occupied by the automatic door opener is reduced, and the electromagnetic induction module is not influenced to trigger the columnar push rod to move towards the refrigerator door body. The electromagnetic induction module 17 includes a solenoid, an output top shaft 16, and the solenoid is slidably connected to the output top shaft 16 so that the output top shaft 16 can slide in the solenoid. The output top shaft 16 is a long cylindrical push rod extending along a direction, and the cylindrical push rod may be a push rod with a uniform radial direction or a push rod with a non-uniform radial direction. In one embodiment, the diameter of the end of the output top shaft 16 close to the household appliance door body is slightly smaller, and the diameter of the end of the output top shaft 16 far away from the household appliance door body is slightly larger. The automatic door opening device further comprises a main control board 13, the main control board 13 triggers the electromagnetic induction module 17 to start after acquiring an automatic door opening signal, so that the solenoid is electrified, the output top shaft 16 in the solenoid moves towards the household appliance door body according to an electromagnetic effect to separate from a magnetic seal to eject the household appliance door body, the output top shaft 16 continues to move until the household appliance door body is opened to an angle, and the angle can be an angle for opening the door body providing a space for a user to take and/or place articles; the angle can also be an angle that the output top shaft just jacks up the household appliance door body. After the automatic door opening device 100 for the household electrical appliance obtains an effective instruction for the main control board 13, the automatic door opening device for the household electrical appliance is controlled to open the door body of the household electrical appliance to a proper angle, the door body is not required to be opened actively by a user in the whole process, and the use experience of the user is improved.

As will be appreciated by one skilled in the art, embodiments of the present description may be provided as a method, system, or computer program product. Accordingly, one or more embodiments of the present description may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, one or more embodiments of the present description may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

While embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of adaptation of the invention, and further modifications can be easily implemented by those skilled in the art, so that the invention is not limited to the specific details and the examples shown herein, without departing from the general concept defined by the claims and the scope of equivalents.

Claims (10)

1. An automatic door opening control method for household appliances is characterized by comprising the following steps:

acquiring state information of an automatic door opening device;

judging whether the state information of the automatic door opener is effective or not;

if the state information of the automatic door opening device is valid, an automatic door opening signal is obtained;

and analyzing the automatic door opening signal to configure an automatic door opening device push rod to open the household appliance door body.

2. The automatic door opening control method of an electric appliance according to claim 1, wherein if the state information of the automatic door opening device is invalid, a prompt message is issued.

3. The automatic door opening control method for the household electrical appliance according to claim 1, wherein the automatic door opening control method for the household electrical appliance further comprises the steps of obtaining the interval duration between the current automatic door opening signal and the last automatic door opening signal, and when the interval duration is smaller than a first threshold, not triggering the automatic door opening device to start; and when the interval duration is not less than the first threshold, triggering the automatic door opening device to start.

4. The automatic door opening control method of an electric appliance according to claim 3, wherein the first threshold is set according to the type of the acquired automatic door opening signal.

5. The automatic door opening control method for household appliances according to claim 1, further comprising the steps of obtaining the number of times of continuous start of the automatic door opening device, and controlling the push rod to move towards the household appliance door body after a set time when the automatic door opening device is triggered again to start when the number of times of continuous start is greater than a second threshold value; when the continuous starting times are not more than the second threshold value, the push rod is controlled to move towards the household appliance door body when the automatic door opening device is triggered again to start.

6. The automatic door opening control method of an electric appliance according to claim 1, wherein the automatic door opening signal is a voice signal and/or a tap signal.

7. The automatic door opening control method of an electric home appliance according to claim 6,

when the automatic door opening signal is a voice signal and a knocking signal,

acquiring a voice signal;

analyzing the voice signal to judge the validity of the voice signal;

if the voice signal is effective, collecting a knocking signal of the target door body;

and analyzing the knocking signal of the target door body to configure an automatic door opening device push rod to open the household appliance door body.

8. The automatic door opening control method of an electric appliance according to claim 1, wherein when the automatic door opening device opens the door body of the electric appliance based on the automatic door opening signal, pressure information of the push rod is obtained to determine whether the automatic door opening device is in a normal operation.

9. An automatic door opening device, comprising a main control board, wherein the main control board is configured to execute the computer program of the automatic door opening control method of the household electrical appliance according to any one of claims 1 to 8, and the main control board obtains an automatic door opening signal and causes the automatic door opening device to open a household electrical appliance door body based on the automatic door opening signal.

10. The automatic door opener according to claim 9, wherein the automatic door opener comprises an electromagnetic induction module; the main control board obtains an automatic door opening signal, the automatic door opening signal triggers the electromagnetic induction module to be started, and the household appliance door body is opened through the output top shaft under the electromagnetic induction effect.

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