Refrigerator and control method thereof

By setting up an ultrasonic generator and receiver on the refrigerator door, combined with a controller and a regulator, an automated door height leveling is achieved, solving the problem of inefficiency in the existing technology, and improving the appearance and maintenance efficiency of the refrigerator.

CN119594640APending Publication Date: 2025-03-11GREE ELECTRIC APPLIANCE INC OF ZHUHAI
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Patent Information

Application Number
CN202411893424.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-03-11

AI Technical Summary

Technical Problem

In the prior art, the refrigerator door height leveling efficiency is low, resulting in poor appearance and increased maintenance processes.

Method used

The box door height is measured by the first ultrasonic generator and the first receiver using ultrasonic measurement technology, and the box door height is automatically adjusted by the controller and regulator until the standard value is met.

Benefits of technology

It greatly improves the efficiency of box door height leveling, reduces the steps of manual measurement and debugging, and improves the appearance and integrity of the refrigerator.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a refrigerator and a control method thereof, and the refrigerator comprises a refrigerator door; the first ultrasonic generator is arranged on the box door, and the first ultrasonic generator emits ultrasonic waves to the preset surface; the first receiver is arranged on the box door, and the first receiver is used for receiving the ultrasonic waves reflected by the preset surface; the controller is electrically connected with the first ultrasonic generator, the controller is in information connection with the first receiver, and the controller is used for obtaining first measurement time T1 when the first receiver receives the ultrasonic waves after the first ultrasonic generator transmits the ultrasonic waves and judging whether the first measurement time T1 is located in a first preset interval or not; the regulator is connected with the box door and used for regulating the height of the box door, and the regulator is electrically connected with the controller; the controller controls the regulator when the first measurement time T1 is not in the first preset interval. According to the refrigerator and the control method thereof, the problem that in the prior art, the height leveling efficiency of the refrigerator door of the refrigerator is low is effectively solved.
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Description

Technical Field

[0001] The present invention relates to the technical field of refrigerators, and in particular to a refrigerator and a control method thereof. Background Art

[0002] During the production or transportation process, the refrigerator door may not be aligned with the height of the refrigerator body, resulting in a poor appearance of the refrigerator, increasing the factory maintenance process and user complaint rate of the refrigerator.

[0003] In the prior art, the height of the door and the box body is leveled by external tools, the assembly error between the door and the box body is determined by measuring tools, the assembly position of the door is adjusted by maintenance tools, and then measured by measuring tools. This height leveling method is time-consuming and laborious and has low efficiency.

[0004] In summary, the efficiency of height leveling of refrigerator doors in the prior art is low. Summary of the invention

[0005] A refrigerator and a control method thereof are provided in an embodiment of the present invention to solve the problem of low efficiency in height leveling of refrigerator doors in the prior art.

[0006] To achieve the above object, the present invention provides a refrigerator, comprising: a door;

[0007] A first ultrasonic generator is arranged on the box door, and the first ultrasonic generator emits ultrasonic waves toward a preset surface; a first receiver is arranged on the box door, and the first receiver is used to receive ultrasonic waves reflected from a preset surface; a controller is electrically connected to the first ultrasonic generator, and the controller is informationally connected to the first receiver, and the controller is used to obtain a first measurement time T1 when the first receiver receives the ultrasonic wave after the first ultrasonic generator emits the ultrasonic wave, and to determine whether the first measurement time T1 is within a first preset interval; an adjuster is connected to the box door and is used to adjust the height of the box door, and the adjuster is electrically connected to the controller; the controller controls the adjuster when the first measurement time T1 is not within the first preset interval.

[0008] Furthermore, the refrigerator is a multi-door refrigerator, the doors include a first door close to the ground, the preset surface corresponding to the first door is the ground, and the first ultrasonic generator on the first door emits ultrasonic waves toward the ground.

[0009] Further, the door includes a second door located above the first door, the preset surface corresponding to the second door is the top surface of the first door, and the first ultrasonic generator of the second door emits ultrasonic waves toward the top surface of the first door;

[0010] The first receiver of the second door is arranged adjacent to the first ultrasonic generator, and the first receiver of the second door is used to receive the ultrasonic wave reflected by the top surface of the first door.

[0011] Furthermore, the number of the first door is at least one, the number of the second door is multiple, and the second door is arranged corresponding to the first door.

[0012] Furthermore, the refrigerator is a cross-door refrigerator, the number of the first doors is two and corresponds to the freezer compartment, the number of the second doors is two and corresponds to the refrigerator compartment; the second doors are arranged in a one-to-one correspondence with the first doors.

[0013] Further, the box door comprises two boxes arranged at intervals in the horizontal direction, one of the boxes is provided with a second ultrasonic generator, and the other box door is provided with a second receiver, the second ultrasonic generator is electrically connected to the controller, and the second receiver is informationally connected to the controller;

[0014] The second ultrasonic wave is used to transmit the ultrasonic wave to the second receiver, and the controller is used to obtain the second measurement time T2 when the second receiver receives the ultrasonic wave after the second ultrasonic generator generates the ultrasonic wave, and determine whether the second measurement time T2 is within the second preset interval; the controller controls any one of the regulators on the two doors according to the determination result.

[0015] According to another aspect of the present invention, a refrigerator control method is provided, which is used to control the above refrigerator, comprising the following steps:

[0016] Obtaining a first measurement time T1;

[0017] Determine whether the first measurement time T1 is within a first preset interval;

[0018] The regulator is controlled according to the judgment result.

[0019] Furthermore, the step of controlling the regulator according to the judgment structure includes the following steps:

[0020] If the first measurement time T1 is not within the first preset interval and is higher than the upper limit of the first preset interval, the control regulator lowers the corresponding door;

[0021] If the first measurement time T1 is not within the first preset interval and is lower than the lower limit of the first preset interval, the regulator is controlled to raise the corresponding door;

[0022] If the first measurement time T1 is within the first preset interval, the control of the regulator is canceled.

[0023] Furthermore, the door in the refrigerator includes two doors spaced apart in the horizontal direction, one of the doors is provided with a second ultrasonic generator, the other door is provided with a second receiver, the second ultrasonic generator is electrically connected to the controller, and the second receiver is informationally connected to the controller; the second ultrasonic wave is used to transmit the ultrasonic wave to the second receiver, the controller is used to obtain a second measurement time T2 when the second receiver receives the ultrasonic wave after the second ultrasonic generator generates the ultrasonic wave, and judge whether the second measurement time T2 is within a second preset interval; the controller controls any one of the regulators on the two doors according to the judgment result;

[0024] The control method further comprises the following steps:

[0025] Obtaining a second measurement time T2;

[0026] Determining whether the second measurement time T2 is within a second preset interval;

[0027] If not, the regulator is controlled.

[0028] According to another aspect of the present invention, there is provided a control device for use in a refrigerator, the device comprising:

[0029] A parameter acquisition module, used to acquire a first measurement time T1;

[0030] The control module is used to control the regulator according to whether the first measurement time T1 is within a first preset interval.

[0031] According to another aspect of the present invention, a computer-readable storage medium is provided, on which a computer program is stored, and when the program is executed by a processor, the control method as described above is implemented.

[0032] The refrigerator of the present invention measures the height of the door through the first ultrasonic generator and the first receiver. The ultrasonic wave emitted by the first ultrasonic generator reaches the preset surface and then reflects and is received by the first receiver. The time from the emission to the reception of the ultrasonic wave is the first measurement time T1, and the ultrasonic wave speed emitted by the first ultrasonic generator is a known parameter. The distance between the door and the preset surface, that is, the height value of the door, can be directly obtained by formula calculation, and then it is judged whether the height value of the door meets the standard value. When the controller judges that the first measurement time T1 is not in the first preset interval, it means that the door is not within the preset standard height and needs to be adjusted by the regulator. The controller sends a specific adjustment signal to the regulator to adjust the height of the corresponding door until the height of the door meets the standard, so that the door and the door body are leveled. The refrigerator of the present invention is provided with the first ultrasonic generator, the first receiver, the regulator, the controller, and the specific judgment execution method of the controller, so that when the door is leveled in height, it only needs the controller to execute the instruction program, control the first ultrasonic generator to work, obtain the information of the first receiver, and then control the regulator to complete it, without the need for manual repeated measurement and debugging, which greatly improves the leveling efficiency and saves time and effort. The refrigerator of the present invention effectively improves the maintenance efficiency of the refrigerator before and after delivery, improves the aesthetics and integrity of the refrigerator appearance, and greatly improves the user experience. The door structure of the present invention is not limited by position, and the doors at different positions can be provided with the first ultrasonic generator and the first receiver, and the height of the upper, middle, and lower doors can be adjusted, thereby ensuring the overall appearance of the refrigerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic structural diagram of a refrigerator door according to an embodiment of the present invention;

[0034] Figure 2 yes Figure 1 A schematic diagram of the partial structure of the box door;

[0035] Figure 3 is a front view schematic diagram of a refrigerator according to an embodiment of the present invention;

[0036] Figure 4 is a cross-sectional schematic diagram of a refrigerator door according to an embodiment of the present invention;

[0037] Figure 5 yes Figure 4 A schematic diagram of the partial structure of the box door;

[0038] Figure 6 Schematic diagram of the internal structure of a refrigerator door according to an embodiment of the present invention;

[0039] Figure 7 is a flow chart of a method for controlling a refrigerator according to an embodiment of the present invention;

[0040] Figure 8 It is a specific flow chart of the refrigerator control method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0041] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0042] See also Figures 1 to 6 As shown, according to an embodiment of the present invention, a refrigerator is provided, the refrigerator comprising a door 10, a first ultrasonic generator A1, a first receiver B1, a controller and an adjuster 20, the first ultrasonic generator A1 is arranged on the door 10, and the first ultrasonic generator A1 emits ultrasonic waves toward a preset surface; the first receiver B1 is arranged on the door 10, and the first receiver B1 is used to receive ultrasonic waves reflected from the preset surface; the controller is electrically connected to the first ultrasonic generator A1, and the controller is informationally connected to the first receiver B1, and the controller is used to obtain a first measurement time T1 when the first receiver B1 receives the ultrasonic wave after the first ultrasonic generator A1 emits the ultrasonic wave, and judge whether the first measurement time T1 is within a first preset interval; the adjuster 20 is connected to the door 10 and used to adjust the height of the door 10, and the adjuster 20 is electrically connected to the controller; the controller controls the adjuster 20 when the first measurement time T1 is not within the first preset interval.

[0043] The refrigerator of the present invention measures the height of the door through the first ultrasonic generator and the first receiver. The ultrasonic wave emitted by the first ultrasonic generator reaches the preset surface and then reflects and is received by the first receiver. The time from the emission to the reception of the ultrasonic wave is the first measurement time T1, and the ultrasonic wave speed emitted by the first ultrasonic generator is a known parameter. The distance between the door and the preset surface, that is, the height value of the door, can be directly obtained by formula calculation, and then it is judged whether the height value of the door meets the standard value. When the controller judges that the first measurement time T1 is not in the first preset interval, it means that the door is not within the preset standard height and needs to be adjusted by the regulator. The controller sends a specific adjustment signal to the regulator to adjust the height of the corresponding door until the height of the door meets the standard, so that the door and the door body are leveled. The refrigerator of the present invention is provided with the first ultrasonic generator, the first receiver, the regulator, the controller, and the specific judgment execution method of the controller, so that when the door is leveled in height, it only needs the controller to execute the instruction program, control the first ultrasonic generator to work, obtain the information of the first receiver, and then control the regulator to complete it, without the need for manual repeated measurement and debugging, which greatly improves the leveling efficiency and saves time and effort. The refrigerator of the present invention effectively improves the maintenance efficiency of the refrigerator before and after delivery, improves the aesthetics and integrity of the refrigerator appearance, and greatly improves the user experience. The door structure of the present invention is not limited by position, and the doors at different positions can be provided with the first ultrasonic generator and the first receiver, and the height of the upper, middle, and lower doors can be adjusted, thereby ensuring the overall appearance of the refrigerator.

[0044] It should be noted that the regulator 20 is mounted on the hinge structure, and the specific structural form of the regulator is not specifically limited, and the door can be raised or lowered by a driving mechanism such as a motor. The information connection between the first receiver and the controller includes a wired connection and a wireless connection, the purpose of which is to enable the first receiver to send a feedback signal to the controller so that the controller records and obtains the first measurement time T1. The controller analyzes the time required from the emission to the reception of the ultrasonic wave, and calculates the distance between the generator and the preset surface in combination with the preset ultrasonic wave speed, and compares this distance with the standard height to determine whether the height of the door meets the standard height. Due to the formula relationship between speed, time and distance, it is sufficient to compare the relationship between the first measurement time and the first preset area, and does not require too much calculation.

[0045] Preferably, see Figure 3 The refrigerator is a multi-door refrigerator, the door 10 includes a first door 11 close to the ground, the preset surface corresponding to the first door 11 is the ground, and the first ultrasonic generator A1 on the first door 11 emits ultrasonic waves toward the ground.

[0046] The first door is the lower door of a multi-door refrigerator. When leveling the height of the first door, the preset surface is set to the ground. During normal use, the ground is basically flat, so the first door is measured and leveled with the ground as the preset surface. The height accuracy is higher, and the height of the first door located at the bottom can meet the standard height, which increases neatness and aesthetics.

[0047] Preferably, see Figure 3 , the door 10 includes a second door 12 located above the first door 11, the preset surface corresponding to the second door 12 is the top surface of the first door 11, and the first ultrasonic generator A1 of the second door 12 emits ultrasonic waves toward the top surface of the first door 11;

[0048] The first receiver B1 of the second door 12 is disposed adjacent to the first ultrasonic generator A1 , and the first receiver B1 of the second door 12 is used for receiving ultrasonic waves reflected by the top surface of the first door 11 .

[0049] After the first door below is leveled, the top surface of the first door can be used as a reference surface for the plane, so the preset surface corresponding to the second door is selected as the top surface of the first door. Moreover, the distance between the top surface of the first door and the second door is very close, which can greatly reduce the measurement error and improve the height leveling accuracy of the second door.

[0050] It should be noted that the first ultrasonic generator and the first receiver are both installed at the bottom of the door, so that ultrasonic waves can be emitted downward, taking into account both the first door below and the second door above. The first ultrasonic generator and the first receiver are generally arranged adjacent to each other.

[0051] There is at least one first door 11 , and there are multiple second doors 12 . The second doors 12 are arranged corresponding to the first doors 11 .

[0052] According to different types of refrigerators, the first door can be one or more, and the first door is leveled by the ground so as to keep it flush with the height of the box body. There are at least two second doors, which conforms to the basic type of multi-door refrigerators. Both the first door and the second door can achieve height leveling, which greatly improves the appearance of the refrigerator.

[0053] Combination Figure 3 As shown, in this embodiment, the refrigerator is a cross-door refrigerator, the number of the first doors 11 is two and corresponds to the freezer compartment, the number of the second doors 12 is two and corresponds to the refrigerator compartment; the second doors 12 are arranged in a one-to-one correspondence with the first doors 11.

[0054] The cross-door refrigerator has many doors and four doors. However, in the door structure of the present invention, each door can be leveled to a standard height through the above-mentioned coordination and control method, so that the cross-door refrigerator, which has the most complex leveling structure, can also be quickly leveled through the controller, which greatly saves time, automatically adjusts the doors, and improves efficiency.

[0055] In order to further perform calibration, the box door 10 includes two box doors 10 spaced apart in the horizontal direction, one of the box doors 10 is provided with a second ultrasonic generator A2, and the other box door 10 is provided with a second receiver B2, the second ultrasonic generator A2 is electrically connected to the controller, and the second receiver B2 is informationally connected to the controller;

[0056] The second ultrasonic wave is used to transmit the ultrasonic wave to the second receiver B2, and the controller is used to obtain the second measurement time T2 when the second receiver B2 receives the ultrasonic wave after the second ultrasonic wave generator A2 generates the ultrasonic wave, and judge whether the second measurement time T2 is in the second preset interval; the controller controls any of the regulators 20 on the two doors 10 according to the judgment result. The second ultrasonic wave generator and the second receiver are symmetrically arranged along the central axis of the refrigerator, and the second ultrasonic wave generator and the second receiver are generally arranged at the bottom of the door, which is convenient for wiring and does not affect the propagation of the ultrasonic wave. In this embodiment, the second ultrasonic wave generator and the second receiver are respectively arranged at the two handle positions of the second door.

[0057] The first ultrasonic generator generally emits ultrasonic waves in the vertical direction, so the height of the box door can be adjusted in the vertical direction, but since the first preset interval is a range value, there is still a certain height difference between the two box doors set at intervals in the horizontal direction. In order to further make the height more uniform and the flatness of the box door more accurate, the second ultrasonic generator and the second receiver are used for measurement. The second preset interval set represents the height difference between the two boxes set at intervals in the horizontal direction, and the height difference cannot exceed a certain interval value. If one of the boxes exceeds the other box door by a certain height, the height difference between the relative second ultrasonic generator and the second receiver becomes larger, thereby making the straight-line distance between the relative second ultrasonic generator and the second receiver longer, then the second measurement time T2 will become larger, so the height difference between the two boxes set at intervals in the horizontal direction is judged by the configuration of the second ultrasonic generator and the second receiver. If the second measurement time T2 is not in the second preset interval, the regulators in the two boxes are controlled to lift the boxes, such as comparing the size of the first measurement time T1 of the two boxes, and according to the comparison result, the box door with a larger value of the first measurement time T1 is lowered or the box door with a smaller value of the first measurement time T1 is raised. If the second measurement time T2 is within the second preset interval, it means that the two doors spaced apart in the horizontal direction can also maintain precise height consistency in the horizontal direction, thereby improving the overall appearance of the refrigerator.

[0058] See also Figure 7 As shown, according to an embodiment of the present invention, a refrigerator control method is provided, which is used to control the refrigerator of the above embodiment, comprising the following steps:

[0059] Step S10: Obtaining a first measurement time T1;

[0060] Step S20: determining whether the first measurement time T1 is within a first preset interval;

[0061] Step S30: Control the regulator 20 according to the determination result.

[0062] In the control method of the refrigerator of the present invention, when it is determined that the first measurement time T1 is not within the first preset interval, it means that the door is not within the preset standard height, and it needs to be adjusted by the regulator, and a specific adjustment signal is sent to the regulator to adjust the height of the corresponding door until the height of the door meets the standard, so that the door and the door body are leveled. The control method of the refrigerator of the present invention can automatically level the door without manual repeated measurement and debugging, greatly improving the leveling efficiency, saving time and effort. The aesthetics and integrity of the appearance of the refrigerator are improved, and the user experience is greatly improved.

[0063] Combination Figure 8 As shown, the step of controlling the regulator 20 according to the judgment structure includes the following steps:

[0064] If the first measurement time T1 is not within the first preset interval and is higher than the upper limit of the first preset interval, the control regulator 20 lowers the corresponding door 10;

[0065] If the first measurement time T1 is not within the first preset interval and is lower than the lower limit of the first preset interval, the control regulator 20 raises the corresponding door 10;

[0066] If the first measurement time T1 is within the first preset interval, the control of the regulator is canceled.

[0067] By further comparing the first measurement time T1 with the upper limit or lower limit of the first preset interval, the height position of the box door is judged and it is determined whether to raise or lower the corresponding box door. If the first measurement time T1 is not located in the first preset interval and is higher than the upper limit of the first preset interval, it means that the corresponding box door is higher than the standard height, so it is necessary to control the regulator to lower the corresponding box door. If the first measurement time T1 is not located in the first preset interval and is lower than the lower limit of the first preset interval, it means that the corresponding box door is lower than the standard height, so it is necessary to control the regulator 20 to raise the corresponding box door 10. Through the above-mentioned step control, the height judgment of the box door is more accurate, and the process of raising and lowering the box door is also more efficient.

[0068] The door 10 in the refrigerator includes two doors 10 spaced apart in the horizontal direction, one of the doors 10 is provided with a second ultrasonic generator A2, and the other door 10 is provided with a second receiver B2, the second ultrasonic generator A2 is electrically connected to the controller, and the second receiver B2 is informationally connected to the controller; the second ultrasonic wave is used to transmit the ultrasonic wave to the second receiver B2, and the controller is used to obtain a second measurement time T2 when the second receiver B2 receives the ultrasonic wave after the second ultrasonic generator A2 generates the ultrasonic wave, and judge whether the second measurement time T2 is within a second preset interval; the controller controls any of the regulators 20 on the two doors 10 according to the judgment result;

[0069] The control method further comprises the following steps:

[0070] Obtaining a second measurement time T2;

[0071] Determining whether the second measurement time T2 is within a second preset interval;

[0072] If not, the regulator 20 is controlled.

[0073] The second preset interval is set to represent the height difference between two horizontally spaced doors, and the height difference cannot exceed a certain interval value. If one of the doors exceeds the other door by a certain height, the height difference between the relative second ultrasonic generator and the second receiver becomes larger, thereby making the straight-line distance between the relative second ultrasonic generator and the second receiver longer, then the second measurement time T2 will become larger, so the height difference between the two doors spaced horizontally is determined by the configuration of the second ultrasonic generator and the second receiver. If the second measurement time T2 is not located in the second preset interval, the regulators in the two doors are controlled to lift the doors, such as comparing the first measurement time T1 of the two doors, and according to the comparison result, the door with a larger value of the first measurement time T1 is lowered or the door with a smaller value of the first measurement time T1 is raised. If the second measurement time T2 is located in the second preset interval, it means that the two doors spaced horizontally can also maintain precise height consistency in the horizontal direction, thereby improving the overall appearance of the refrigerator.

[0074] According to an embodiment of the present invention, a control device is provided, which is applied to a refrigerator, and the device comprises:

[0075] A parameter acquisition module, used to acquire a first measurement time T1;

[0076] The control module is used to control the regulator 20 according to whether the first measurement time T1 is within a first preset interval.

[0077] According to an embodiment of the present invention, there is provided a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the control method as described above is implemented.

[0078] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0079] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0080] Of course, the above are preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the basic principles of the present invention, and these improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. A refrigerator, characterized in that: include: Box door (10); A first ultrasonic generator (A1) is arranged on the box door (10), and the first ultrasonic generator (A1) emits ultrasonic waves toward a preset surface; A first receiver (B1) is arranged on the door (10), and the first receiver (B1) is used to receive ultrasonic waves reflected from a preset surface; a controller, the controller being electrically connected to the first ultrasonic generator (A1), the controller being informationally connected to the first receiver (B1), the controller being used to obtain a first measurement time T1 when the first receiver (B1) receives the ultrasonic wave after the first ultrasonic generator (A1) emits the ultrasonic wave, and to determine whether the first measurement time T1 is within a first preset interval; An adjuster (20), the adjuster (20) being connected to the box door (10) and used for adjusting the height of the box door (10), the adjuster (20) being electrically connected to the controller; the controller controlling the adjuster (20) when the first measurement time T1 is not within a first preset interval.

2. The refrigerator according to claim 1, characterized in that: The refrigerator is a multi-door refrigerator, the cabinet doors (10) include a first cabinet door (11) close to the ground, the preset surface corresponding to the first cabinet door (11) is the ground, and the first ultrasonic generator (A1) on the first cabinet door (11) emits ultrasonic waves toward the ground.

3. The refrigerator according to claim 2, characterized in that: The door (10) comprises a second door (12) located above the first door (11); the preset surface corresponding to the second door (12) is the top surface of the first door (11); and the first ultrasonic generator (A1) of the second door (12) emits ultrasonic waves toward the top surface of the first door (11); The first receiver (B1) of the second door (12) is arranged adjacent to the first ultrasonic generator (A1), and the first receiver (B1) of the second door (12) is used to receive ultrasonic waves reflected by the top surface of the first door (11).

4. The refrigerator according to claim 3, characterized in that: The number of the first door (11) is at least one, the number of the second door (12) is plural, and the second door (12) is arranged corresponding to the first door (11).

5. The refrigerator according to claim 3, characterized in that: The refrigerator is a cross-door refrigerator, the first doors (11) are two and correspond to the freezing chamber, and the second doors (12) are two and correspond to the refrigerating chamber; The second door (12) is arranged in one-to-one correspondence with the first door (11).

6. The refrigerator according to claim 1, characterized in that: The box door (10) comprises two box doors (10) arranged at intervals in the horizontal direction, one of the box doors (10) is provided with a second ultrasonic generator (A2), and the other box door (10) is provided with a second receiver (B2), the second ultrasonic generator (A2) is electrically connected to the controller, and the second receiver (B2) is informationally connected to the controller; The second ultrasonic wave is used to transmit the ultrasonic wave to the second receiver (B2); the controller is used to obtain a second measurement time T2 at which the second receiver (B2) receives the ultrasonic wave after the second ultrasonic wave generator (A2) generates the ultrasonic wave, and to determine whether the second measurement time T2 is within a second preset interval; and the controller controls any one of the regulators (20) on the two door panels (10) according to the determination result.

7. A refrigerator control method, used to control the refrigerator according to any one of claims 1 to 6, characterized in that: The following steps are involved: Obtaining a first measurement time T1; Determine whether the first measurement time T1 is within a first preset interval; The regulator (20) is controlled according to the judgment result.

8. The control method according to claim 7, characterized in that: The step of controlling the regulator (20) according to the judgment structure comprises the following steps: If the first measurement time T1 is not within the first preset interval and is higher than the upper limit of the first preset interval, the control regulator (20) lowers the corresponding box door (10); If the first measurement time T1 is not within the first preset interval and is lower than the lower limit of the first preset interval, the control regulator (20) raises the corresponding box door (10); If the first measurement time T1 is within the first preset interval, the control of the regulator is canceled.

9. The control method according to claim 7, characterized in that: The door (10) in the refrigerator comprises two doors (10) arranged at intervals in the horizontal direction, one of the doors (10) is provided with a second ultrasonic generator (A2), and the other door (10) is provided with a second receiver (B2), the second ultrasonic generator (A2) is electrically connected to the controller, and the second receiver (B2) is informationally connected to the controller; the second ultrasonic wave is used to transmit the ultrasonic wave to the second receiver (B2), the controller is used to obtain a second measurement time T2 when the second receiver (B2) receives the ultrasonic wave after the second ultrasonic generator (A2) generates the ultrasonic wave, and judge whether the second measurement time T2 is within a second preset interval; the controller controls any one of the regulators (20) on the two doors (10) according to the judgment result; The control method further comprises the following steps: Obtaining a second measurement time T2; Determining whether the second measurement time T2 is within a second preset interval; If not, the regulator (20) is controlled.

10. A control device, applied to a refrigerator, characterized in that: The device comprises: A parameter acquisition module, used to acquire a first measurement time T1; The control module is used to control the regulator (20) according to whether the first measurement time T1 is within a first preset interval.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the control method according to any one of claims 7 to 9 is implemented.