Pulling assistance device, control method, refrigerator and computer-readable storage medium

Abstract

The present invention discloses a drawing assistance device, a control method, a refrigerator and a computer-readable storage medium, comprising: a first magnetic force assembly, with a magnet part arranged at the rear side of the drawer and a magnetic force device part arranged on the inner wall of the inner liner box facing the opening; a distance sensing device for detecting the distance that the drawer is drawn out of the inner liner box; and a controller capable of controlling the two parts of the first magnetic force assembly to attract each other, repel each other or cut off power according to the distance information detected by the distance sensing device. By arranging a magnetic force device on the drawer or the fruit and vegetable box, the present invention can generate a repulsive force or an attractive force between the magnetic force device of the first magnetic force assembly and the magnet by controlling the energization of the magnetic force device, so as to provide an outward thrust force to the drawer, reducing the force used by the user to draw the refrigerator outwards; or provide an inward suction force to the drawer, reducing the force used by the user to push the refrigerator back inwards. Magnetic force devices are also arranged on the left and right sides to ensure the stable position of the drawer box.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigerators, and particularly to a pulling assistance device, a control method, a refrigerator and a computer-readable storage medium. Background Art

[0002] At present, the fruit and vegetable box or drawer of a refrigerator often uses the rib strips formed by thermoforming the inner liner as the drawer guide rail. However, during the pulling process, it may cause left and right shaking, and without limitation, it may also cause dropping. In addition, for a relatively large fruit and vegetable box or drawer with a large load, when the user pulls it, the resistance is often large and it is not easy to pull. Summary of the Invention

[0003] In order to solve the technical problem of large pulling resistance when the drawer has a large load in the above-mentioned prior art, the present invention provides a pulling assistance device, a control method, a refrigerator and a computer-readable storage medium.

[0004] The technical solution adopted by the present invention is as follows:

[0005] The present invention provides a pulling assistance device, comprising:

[0006] A first magnetic force assembly, the magnet part is arranged at the rear side of the drawer, and the magnetic force device part is arranged on the inner wall of the inner liner box facing the opening;

[0007] A distance sensing device, used to detect the distance that the drawer is pulled out of the inner liner box;

[0008] A controller, which can control the two parts of the first magnetic force assembly to attract, repel or cut off power according to the distance information detected by the distance sensing device.

[0009] The present invention further includes a pressure sensing device for detecting the weight of the drawer.

[0010] The magnetic force assembly includes a first magnetic force assembly, a second magnetic force assembly and a third magnetic force assembly. The magnet part of the second magnetic force assembly is arranged on the left side of the drawer, and the magnetic force device part is arranged on the left inner wall of the inner liner box; the magnet part of the third magnetic force assembly is arranged on the right side of the drawer, and the magnetic force device part is arranged on the right inner wall of the inner liner box. After being powered on, the two parts of the second magnetic force assembly and the third magnetic force assembly repel each other.

[0011] The present invention further provides a pulling assistance control method, using the above-mentioned pulling assistance device, comprising the steps of:

[0012] Detect the pulling distance of the drawer; judge whether the pulling distance of the drawer is greater than 0. If so, turn on the magnetic force assembly and execute the next step; if not, the magnetic force assembly does not start;

[0013] When the extraction distance of the drawer gradually increases, control the two parts of the first magnetic component to repel each other; when the extraction distance of the drawer gradually decreases, control the two parts of the first magnetic component to attract each other.

[0014] When the extraction distance of the drawer is greater than the preset distance L, control the first magnetic component to cut off the power supply.

[0015] When the weight detected by the pressure sensing device is 0, control the first magnetic component to cut off the power supply.

[0016] In a specific embodiment, first detect whether the refrigerator door is opened. If so, detect the gravity of the drawer, preset the magnetic repulsion force and magnetic attraction force of the first magnetic component according to the magnitude of the gravity, and then perform the step of detecting the extraction distance of the drawer; if not, return to the step of detecting the refrigerator door.

[0017] When detecting the gravity of the drawer, preset the magnetic repulsion forces of the second and third magnetic components according to the magnitude of the gravity at the same time.

[0018] The present invention also provides a refrigerator, which is characterized by including the above-mentioned pulling assistance device, and using the above-mentioned pulling assistance control method to facilitate the pulling of the drawer.

[0019] The present invention also provides a computer-readable storage medium for storing a computer program, and when the computer program runs, it executes the above-mentioned pulling assistance control method.

[0020] Compared with the prior art, the present invention provides a magnetic force device on the drawer or the fruit and vegetable box. By controlling the magnetic force device of the first magnetic component to generate a repulsive force or an attractive force between the energized magnetic body, an outward thrust can be provided to the drawer to reduce the force used by the user to pull the refrigerator outwards; or an inward suction force can be provided to the drawer to reduce the force used by the user to push the refrigerator back inwards. Magnetic force devices are also provided on the left and right sides to ensure the stable position of the drawer box. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a structural schematic diagram in the embodiment of the present invention;

[0023] Figure 2 It is a control schematic diagram in the embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clear and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] The principle and structure of the present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0026] In the refrigerator, the fruit and vegetable box or drawer often uses the inner liner to be thermoformed into rib strips as the drawer guide rail. However, during the pulling process, it may cause left and right shaking, and without limit, it may also cause dropping. In addition, for larger fruit and vegetable boxes or drawers, when loaded with more items, the resistance is often greater when the user pulls, and it is not easy to pull. In view of this, the present invention proposes a pulling assistance device, which can provide a certain amount of assistance when the drawer is pulled, reduce the resistance during pulling, and make it easy to pull the drawer with more stored items, improving the user experience.

[0027] The present invention proposes a pulling assistance device, which specifically includes: a first magnetic force component, a distance sensing device and a controller. The first magnetic force component is divided into two parts. One part is a magnet C, which is directly installed on the rear side of the drawer, and the other part is an energizable magnetic force device c, which is installed on the inner wall of the inner liner box opposite to the rear side of the drawer. When the magnetic force device is energized, a repulsive force or an attractive force can be generated between it and the magnet, and after acting on the drawer, an outward pushing force or an inward retracting force is formed. The distance sensing device is arranged on the inner liner box and is used to detect the distance that the drawer is pulled out of the inner liner box, that is, the distance between the rear side of the drawer and the inner wall of the inner liner box. After the drawer is completely pushed in, the distance decreases until it is 0, and after being pulled out, the distance gradually increases. The controller can control the two parts of the first magnetic force component to attract or repel according to the distance information detected by the distance sensing device. For example, when the distance is greater than zero and gradually increasing, control the magnetic force device of the first magnetic force component to generate a repulsive force with the magnet when energized, providing an outward thrust to the drawer and reducing the force used by the user to pull the refrigerator outward; when the distance is greater than zero and gradually decreasing, control the magnetic force device of the first magnetic force component to generate an attractive force with the magnet when energized (adjust the current direction), providing an inward suction force to the drawer and reducing the force used by the user to push the refrigerator inward.

[0028] In a specific embodiment, the present invention further includes a pressure sensing device for detecting the gravity of the drawer. When the drawer is completely pulled out, the weight detected by the pressure sensing device is 0. At this time, the magnetic force component and the distance sensing device are directly turned off. After the pressure sensing device detects the pressure again, then restart and control the energization and de-energization and current direction of the magnetic force component according to the original control logic.

[0029] In a specific embodiment, the present invention further includes: a second magnetic force assembly and a third magnetic force assembly, which are respectively located on the left and right sides of the drawer. A part of the second magnetic force assembly is a magnet a, which is directly installed on the side of the left side of the drawer, and another part is a magnetic force device a, which is installed on the inner wall of the left side of the inner tank. A part of the third magnetic force assembly is a magnet b, which is directly installed on the side of the right side of the drawer, and another part is a magnetic force device b, which is installed on the inner wall of the right side of the inner tank. The two parts of the second magnetic force assembly and the third magnetic force assembly repel each other after being energized, that is, a thrust towards the center is generated on both sides of the drawer, making the drawer smooth when pulled and pushed, and not easily misaligned. After the first magnetic force assembly is energized, it controls the second magnetic force assembly and the third magnetic force assembly to be energized as well, further reducing the difficulty of pulling and pushing the drawer, providing a pulling and pushing assistance, and improving the user experience.

[0030] The present invention also proposes a method for controlling the pulling and pushing assistance, which specifically includes the steps:

[0031] Detect whether the refrigerator door is opened. If so, detect the gravity of the drawer, preset the magnetic repulsion force and magnetic attraction force of the first magnetic force assembly, and the magnetic repulsion force of the second and third magnetic force assemblies, and perform the next step; if not, return to the step of detecting the refrigerator door;

[0032] Real-time detect the pulling-out distance of the drawer; determine whether the pulling-out distance of the drawer is greater than 0. If so, turn on the magnetic force device of the magnetic force assembly, and then control according to the drawer distance; if not, the magnetic force device of the magnetic force assembly does not start;

[0033] Controlling according to the drawer distance specifically means: when the drawer distance increases, control the first magnetic force assembly so that its two parts reach the preset magnetic repulsion force, and the repulsive force generated by the first magnetic force assembly can be controlled to increase as the distance increases; when the pulling-out distance of the drawer decreases, control the two parts of the first magnetic force assembly to generate magnetic attraction force.

[0034] Further, when the pulling-out distance of the drawer is greater than the preset distance L, control the first magnetic force assembly to be powered off. When the pulling-out distance of the drawer is less than or equal to the preset distance L and greater than 0, control the first magnetic force assembly to remain powered on to ensure the assistance effect. Because the distance of the suction force and repulsive force of the magnetic force assembly is limited, the acting force weakens or disappears after being greater than the preset distance L, so the power consumption is saved.

[0035] Preset the magnetic repulsion force, magnetic attraction force of the first magnetic component, and the magnetic repulsion forces of the second and third magnetic components according to gravity. Specifically: the greater the gravity, the greater the set magnetic repulsion force, magnetic attraction force of the first magnetic component, and the magnetic repulsion forces of the second and third magnetic components; the smaller the gravity, the smaller the set magnetic repulsion force, magnetic attraction force of the first magnetic component, and the magnetic repulsion forces of the second and third magnetic components. This makes the magnetic force correspond to the weight, further improving the user experience. The specific set values can be adjusted according to actual needs.

[0036] Figure 2 It is a simplified diagram of the control path. After the cabinet door is opened, the user performs a pulling operation. At this time, the pressure sensing device will judge the weight of the fruit and vegetable box (i.e., the drawer). The three magnetic force devices start to set the magnetic repulsion force. At the same time, the distance sensing device senses whether the distance H is greater than 0. If so, it means the user has pulled the fruit and vegetable box, and the magnetic force device is turned on. If not, it means the user has not pulled the fruit and vegetable box, and the magnetic force device does not start.

[0037] After the magnetic force device is started, the magnetic force device c generates a magnetic repulsion force to assist in pulling, and the magnetic force devices a and b generate magnetic repulsion forces to fix and limit the fruit and vegetable box.

[0038] When the distance sensing device senses that the distance H is greater than or equal to the preset distance L, control the magnetic force device c to cut off the power. After pushing in the fruit and vegetable box, that is, when the distance sensing device senses that the distance H returns to be greater than zero and less than the preset distance L, control the magnetic force device c to turn on and generate a magnetic attraction force to assist until the distance sensing device senses that the distance H is 0, indicating that the fruit and vegetable box is reset, that is, completely pushed into the inner cabinet, and the magnetic force devices a, b, and c are powered off.

[0039] In a specific embodiment, when the weight detected by the pressure sensing device is 0, directly control the magnetic force devices of all magnetic components to cut off the power.

[0040] The present invention also proposes a refrigerator, including the above-mentioned pulling assistance device, and using the above-mentioned pulling assistance control method to make the drawer easy to pull.

[0041] The refrigerator specifically includes: a drawer, an inner cabinet, and a cabinet door, and also includes the common components existing in the refrigerator, which are not the focus of the present invention and will not be elaborated one by one.

[0042] The drawer is installed on the inner cabinet. After opening the cabinet door, the drawer can be pulled out from the inner cabinet. The drawer can specifically be a fruit and vegetable box.

[0043] As Figure 1 shown, the magnets of each magnetic component (magnets A, B, and C in the figure) are arranged horizontally in a strip shape, and the corresponding magnetic force devices are also arranged horizontally in a strip shape on the inner cabinet.

[0044] The present invention also provides a computer-readable storage medium for storing a computer program, which, when running, executes the above-mentioned drawing assistance control method.

[0045] It should be noted that the terms used above 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, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0046] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0047] In the description of the present application, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom" are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present application; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0048] For ease of description, spatial relative terms, such as "above", "over", "on the upper surface", "upper", etc., may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, the device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both orientations of "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations for the spatial relative descriptions used herein will be made accordingly.

[0049] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of differentiating the corresponding components. Without additional statements, the above terms have no special meanings, and thus should not be construed as limiting the scope of protection of this application.

[0050] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A pull-assisting device, characterized in that, Comprising: A first magnetic force assembly, with the magnet part arranged at the rear side of the drawer and the magnetic force device part arranged on the inner wall of the inner container box; A distance sensing device for detecting the distance that the drawer is pulled out of the inner container box; A controller that can control the two parts of the first magnetic force assembly to attract, repel or cut off power according to the distance information detected by the distance sensing device; It further comprises a second magnetic force assembly and a third magnetic force assembly. The magnet part of the second magnetic force assembly is arranged on the left side of the drawer, and the magnetic force device part is arranged on the inner wall of the left side of the inner container box; the magnet part of the third magnetic force assembly is arranged on the right side of the drawer, and the magnetic force device part is arranged on the inner wall of the right side of the inner container box. After the first magnetic force assembly is powered on, it controls the second magnetic force assembly and the third magnetic force assembly to be powered on as well. After being powered on, the two parts of the second magnetic force assembly and the third magnetic force assembly repel each other.

2. The draw assist device according to claim 1, characterized in that, It further comprises a pressure sensing device for detecting the weight of the drawer.

3. A pull-assist control method, characterized in that, Using the drawer pulling assistance device according to any one of claims 1 to 2, comprising the steps: Detecting the pulling out distance of the drawer; judging whether the pulling out distance of the drawer is greater than 0. If so, turn on the magnetic force assembly and perform the next step; if not, the magnetic force assembly does not start; When the pulling out distance of the drawer gradually increases, control the two parts of the first magnetic force assembly to repel each other; when the pulling out distance of the drawer gradually decreases, control the two parts of the first magnetic force assembly to attract each other.

4. The draw assistance control method according to claim 3, characterized in that When the pulling out distance of the drawer is greater than the preset distance L, control the first magnetic force assembly to cut off power.

5. The pull-assist control method according to claim 3, wherein, When the weight detected by the pressure sensing device is 0, control the first magnetic force assembly to cut off power.

6. The pull-assist control method according to claim 3, wherein Detecting whether the refrigerator door is opened. If so, detecting the gravity of the drawer, presetting the magnetic repulsion force and magnetic attraction force of the first magnetic force assembly according to the magnitude of the gravity, and then performing the step of detecting the pulling out distance of the drawer; if not, returning to the step of detecting the refrigerator door.

7. The pull - assist control method according to claim 6, wherein, When detecting the gravity of the drawer, presetting the magnetic repulsion forces of the second and third magnetic force assemblies according to the magnitude of the gravity at the same time.

8. A refrigerator, characterized in that, Comprising the drawer pulling assistance device according to any one of claims 1 to 2, and using the drawer pulling assistance control method according to any one of claims 3 to 7 to facilitate the pulling of the drawer.

9. A computer-readable storage medium for storing a computer program, characterized in that, When the computer program runs, it executes the drawer pulling assistance control method according to any one of claims 3 to 7.

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