Overturn-preventing refrigerator

Abstract

The utility model relates to an anti-overturning refrigerator which comprises a door body, a refrigerator body and a balance weight module, the door body is connected with the refrigerator body, and the balance weight module is arranged in the refrigerator body and connected with the inner wall of the refrigerator body; the connecting line of the gravity center of the door body and the gravity center of the counterweight module is perpendicular to the opening direction of the door body. According to the refrigerator, the problem that the refrigerator easily topples forwards along the front side of the refrigerator body is solved, and the stability of the refrigerator is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of refrigerators, in particular to an anti-overturning refrigerator. BACKGROUND

[0002] For a refrigerator, the shelf on the refrigeration door is an important storage space. If the shelf on the door is too full, and the drawer inside the refrigeration chamber is opened at the same time, it may be risky for the refrigerator to overturn due to the center of gravity being too far forward. In view of this situation, in the related art, a connecting device is often used to fix the refrigerator to a wall to achieve the purpose of anti-overturning. If the refrigerator itself is relatively heavy and there are many items stored in the refrigerator, the connecting device is likely to fail due to breakage. Therefore, the method of fixing the refrigerator to the wall through the connecting device has a relatively high strength requirement for the connecting piece. Even if the connecting piece is high enough in strength, it may still be possible to damage the wall due to excessive pulling force.

[0003] At present, there is no effective solution to the problem of low stability of the refrigerator in the related art. CONTENT OF THE UTILITY MODEL

[0004] The embodiments of the present application provide an anti-overturning refrigerator to at least solve the problem of low stability of the refrigerator in the related art.

[0005] In a first aspect, the embodiments of the present application provide an anti-overturning refrigerator, which includes a door body, a cabinet and a counterweight module. The door body is connected to the cabinet, and the counterweight module is arranged inside the cabinet and connected to the inner wall of the cabinet. The line connecting the center of gravity of the door body and the center of gravity of the counterweight module is perpendicular to the opening direction of the door body.

[0006] In some embodiments, the counterweight module generates a first moment of force on the refrigerator that is greater than or equal to the sum of a second moment of force and a third moment of force. The second moment of force is the product of the moment of force generated by the door body on the refrigerator and a load coefficient, and the third moment of force is the moment of force generated by the cabinet on the refrigerator.

[0007] In some embodiments, the second moment of force of the door body is ∑M Q ;

[0008] ∑M Q = m Q gy Q

[0009] wherein m Q is the weight of the door body, y Q is the distance between the push-out position of the door body and the overturning line of the refrigerator, and g is the acceleration of gravity.

[0010] In some embodiments, a third moment generated by the cabinet on the center of gravity of the refrigerator is ∑M W ;

[0011] ∑M W = mg M y M

[0012] wherein m M is the weight of the cabinet, y M is the distance between the center of gravity of the cabinet and the overturning line of the refrigerator, and g is the acceleration of gravity.

[0013] In some embodiments, the weight of the counterweight module is m0;

[0014]

[0015] wherein M W is the force generated by the cabinet on the center of gravity of the refrigerator, K is the load coefficient, ∑M Q is the moment generated by the door body on the refrigerator, and y0 is the distance between the center of gravity of the counterweight module and the overturning line of the refrigerator.

[0016] In some embodiments, the cabinet comprises a cavity provided with a compressor, and the counterweight module is located in the cavity.

[0017] In some embodiments, the counterweight module comprises at least two counterweight units, and the counterweight units are symmetrically arranged with the center of gravity of the refrigerator as the center.

[0018] In some embodiments, the counterweight module comprises a first counterweight unit and a second counterweight unit, the mass of the first counterweight unit is the same as that of the second counterweight unit, and the line connecting the first counterweight unit and the second counterweight unit is perpendicular to the opening direction of the door body.

[0019] In some embodiments, the geometric center of the cavity coincides with the center of gravity of the refrigerator, the first counterweight unit is located on a first side of the cavity, and the center of gravity of the first counterweight unit is located at the midpoint of the length of the first side of the cavity and the midpoint of the height of the cavity; the second counterweight unit is located on a second side of the cavity, and the center of gravity of the second counterweight unit is located at the midpoint of the length of the first side of the cavity and the midpoint of the height of the cavity, the first side and the second side being opposite sides in the cavity.

[0020] In some embodiments, the counterweight module is in contact with the bottom surface of the cabinet.

[0021] Compared with the related art, the anti-overturning refrigerator provided by the embodiment of the present application changes the overall gravity center position of the anti-overturning refrigerator by adding the counterweight module in the refrigerator, and by setting the counterweight module connected with the inner wall of the cabinet, the line connecting the gravity center of the door body and the gravity center of the counterweight module is perpendicular to the opening direction of the door body, the overturning moment in the open state of the door body and the moment generated by the counterweight module relative to the refrigerator are arranged along a single axis, the anti-overturning angle of the anti-overturning refrigerator in the fully open state of the door body is increased, and the anti-overturning capability of the counterweight module is improved.

[0022] The details of one or more embodiments of the present application are presented in the following drawings and description to make other features, objects and advantages of the present application more apparent. BRIEF DESCRIPTION OF DRAWINGS

[0023] The drawings described herein are intended to provide further understanding of the present application, and constitute a part of the present application. The illustrative embodiments of the present application and their description serve to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0024] Figure 1 It is a structural block diagram of an anti-overturning refrigerator in one embodiment;

[0025] Figure 2 It is a structural block diagram of a cavity in one embodiment;

[0026] Figure 3 It is a structural block diagram of a cavity in another embodiment;

[0027] Figure 4 It is a coordinate diagram based on an anti-overturning refrigerator in one embodiment;

[0028] Figure 5 It is a structural block diagram of an anti-overturning refrigerator in another embodiment.

[0029] Reference signs: 1000, refrigerator; 100, door body; 200, cabinet; 20, cavity; 1, compressor; 300, counterweight module; 2, first counterweight unit; 3, second counterweight unit. DETAILED DESCRIPTION

[0030] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be described and explained below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application and not to limit the present application. Based on the embodiments provided by the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of the present application. In addition, it should be understood that although the efforts made in this development process can be complex and lengthy, some design, manufacture or production changes made on the basis of the technical content disclosed in the present application are only routine technical means for those of ordinary skill in the art related to the content disclosed in the present application, and should not be understood as insufficient disclosure of the content disclosed in the present application.

[0031] In the present application, the term "embodiment" means that the specific features, structures or properties described in conjunction with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment to other embodiments. Those of ordinary skill in the art explicitly and implicitly understand that the embodiments described in the present application can be combined with other embodiments without conflict.

[0032] Unless otherwise defined, the technical terms or scientific terms involved in the present application should be understood as the usual meaning by those of ordinary skill in the art to which the present application belongs. The terms "one", "a", "an", "the", and the like similar words involved in the present application do not represent quantity limitation, but can represent singular or plural. The terms "include", "contain", "have" and any variations thereof involved in the present application are intended to cover non-exclusive inclusion; for example, a process, method, system, product or device including a series of steps or modules (units) is not limited to the listed steps or units, but can also include steps or units not listed, or can also include other steps or units inherent to these processes, methods, products or devices. The terms "connected", "connected", "coupled" and the like similar words involved in the present application are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The term "multiple" in the present application means greater than or equal to two. The term "and / or" describes the association between the associated objects, which means that there can be three relationships, for example, "A and / or B" can represent three cases: A exists alone, A and B exist together, and B exists alone. The terms "first", "second", "third" and the like in the present application are only to distinguish similar objects, and do not represent a specific order for the objects.

[0033] The present embodiment provides a toppling-prevention refrigerator, Figure 1 is a structural diagram of the toppling-prevention refrigerator in the present embodiment, asFigure 1 As shown, the refrigerator 1000 includes a door body 100, a cabinet 200, and a counterweight module 300; the door body 100 is connected with the cabinet 200, and the counterweight module 300 is arranged inside the cabinet 200 and connected with the inner wall of the cabinet 200; wherein the connecting line of the center of gravity of the door body 100 and the center of gravity of the counterweight module 300 is perpendicular to the opening direction of the door body 100.

[0034] The door body 100 is used for sealing and heat insulation of the refrigerator 1000 when closed, and the refrigerator 1000 can be provided as a single door structure, an upper and lower independent double door structure, a left and right symmetrical split door structure, a multi-door combination structure, etc., and the number and type of the door body 100 are not limited herein.

[0035] The door body 100 can be connected with the cabinet 200 through mechanical architecture, for example, through one or more hinge assemblies, slide rail assemblies, and other mechanical structures; or the door body 100 is connected with the cabinet 200 by means of a motor and other opening and closing mechanisms. Further, the door body 100 can include a base frame and a sealing strip, and a flexible sealing strip distributed circumferentially along the door frame is used to establish an airtight connection between the door body 100 and the cabinet when the door body 100 is closed.

[0036] The cabinet 200 is used for storing articles and maintaining the refrigeration environment system of the refrigerator 1000. Optionally, the cabinet 200 includes a plurality of storage cavities, and the plurality of storage cavities respectively provide a plurality of different storage spaces. In order to improve the stability of the refrigerator 1000, the cabinet 200 can further include a bottom support seat for absorbing vibration interference caused by uneven ground.

[0037] The counterweight module 300 can be composed of one or more high-density materials such as cast iron and tungsten alloy. Optionally, the counterweight module 300 can include one or more counterweight blocks. The counterweight module 300 can be rigidly combined with the inner wall of the cabinet 200 by welding, bolts, buckles, etc. The counterweight module 300 can also be partially or entirely embedded in the inner wall of the cabinet 200. Optionally, the cabinet 200 is connected with the door body 100 in a first direction, and the inner wall of the cabinet 200 is connected with the counterweight module 300 in a second direction, so that the center of gravity of the counterweight module 300 and the center of gravity of the door body 100 are in the same plane while ensuring that the connecting line of the center of gravity of the door body 100 and the center of gravity of the counterweight module 300 is perpendicular to the opening direction of the door body 100.

[0038] In this embodiment, the overall center of gravity of the refrigerator 1000 is changed by adding the counterweight module 300 inside the refrigerator 1000, and the anti-toppling angle of the refrigerator 1000 in the fully open state of the door body 100 is increased; by setting the counterweight module 300 connected with the inner wall of the cabinet 200, the line connecting the center of gravity of the door body 100 and the center of gravity of the counterweight module 300 is perpendicular to the opening direction of the door body 100, so that the overturning moment of the door body 100 in the open state and the moment generated by the counterweight module 300 relative to the refrigerator 1000 are arranged along a single axis, and the two moments are horizontally aligned to avoid generating additional rotational inertia, thereby improving the anti-overturning effect of the counterweight module 300.

[0039] In some embodiments, the first moment generated by the counterweight module 300 on the refrigerator 1000 is greater than or equal to the sum of the second moment and the third moment, wherein the second moment is the product of the moment generated by the door body 100 on the refrigerator 1000 and the load coefficient, and the third moment is the moment generated by the cabinet 200 on the refrigerator 1000.

[0040] The first moment is an anti-toppling moment. The second moment and the third moment are toppling moments. The directions of the second moment and the third moment can be the same or different. The rotational effect generated by the first moment is greater than the rotational effect generated by the combined action of the second moment and the third moment.

[0041] The second moment is the additional toppling force generated when the door body 100 storage rack carries articles. The angle of opening of the door body 100 is different, and the distance between the center of gravity of the door body 100 and the overall center of gravity of the refrigerator 1000 is different. In the case where the weight of the door body 100 remains unchanged, the greater the angle of opening of the door body 100, the longer the distance between the center of gravity of the door body 100 and the overall center of gravity of the refrigerator 1000, and the second moment increases with the increase of the distance between the center of gravity of the door body 100 and the center of gravity of the refrigerator 1000; conversely, the same reasoning applies, which is not described here. In the case where the refrigerator 1000 has a single door body 100, the opening of the door body 100 generates only a single direction second moment; in the case where the refrigerator 1000 has multiple door bodies 100, when multiple door bodies 100 are opened simultaneously, the moments generated by each door may form a spatial vector superposition.

[0042] When there are multiple pull-out storage spaces in the cabinet 200, the third moment generated by the cabinet 200 relative to the refrigerator 1000 is different according to the opening state of the storage space. For example, the third moment corresponding to the cabinet 200 in the fully loaded and fully open state of the top storage area is greater than the third moment corresponding to the cabinet 200 in the fully loaded and fully open state of the bottom storage area.

[0043] Optionally, the second moment is the product of the moment and the load coefficient generated by the door body 100 to the refrigerator 1000 when all the door bodies 100 of the refrigerator 1000 are opened. Obtain multiple moments generated by the cabinet 200 relative to the gravity center position of the refrigerator 1000 in different states, and select the maximum moment in the multiple moments as the third moment. It can be understood that the first moment and the second moment can be obtained in advance by test or calculation. By adjusting the weight and position of the counterweight module 300, the first moment is greater than the sum of the second moment and the third moment.

[0044] In the embodiment, by setting a counterweight module 300 with a certain weight inside the refrigerator 1000, the first moment generated by the counterweight module 300 to the refrigerator 1000 is greater than or equal to the sum of the second moment and the third moment, so as to prevent the refrigerator 1000 from being unstable when affected by the dumping moment (the second moment and the third moment).

[0045] In some embodiments, the second moment of the door body 100 is ∑M Q ;

[0046] ∑M Q = m Q gy Q

[0047] Wherein, m Q is the weight of the door body 100, y Q is the distance between the push-out position of the door body 100 and the overturning line of the refrigerator 1000, and g is the acceleration of gravity.

[0048] Wherein, the overturning line, also known as the overturning line or the overturning edge; the overturning line of the refrigerator 1000 refers to the farthest edge of the bottom surface of the refrigerator 1000 in contact with the ground during the dumping process of the refrigerator 1000, and the refrigerator 1000 rotates along the overturning line. Exemplarily, when the door body 100 is in a closed state, a three-dimensional coordinate system is established: the midpoint of the bottom surface of the contact surface between the cabinet 200 and the door body 100 is taken as the origin O, the vertical direction is taken as the Z axis, the opening direction of the door body 100 is taken as the positive direction of the Y axis, and the left-right symmetry direction of the contact surface between the cabinet 200 and the door body 100 is taken as the X axis. Wherein, the X axis is the direction along which the refrigerator 1000 overturns. Q y Q is the distance between the y coordinate of the door body 100 in the pushed-out state and the origin O. Wherein, the maximum second moment ∑M Q of the door body 100 can be calculated according to the distance y W .

[0049] In some embodiments, the third moment of the cabinet 200 to the gravity center of the refrigerator 1000 is ∑M W ;

[0050] ∑MW = m M gy M

[0051] wherein m M is the weight of the cabinet 200, y M is the distance between the center of gravity of the cabinet 200 and the overturning line of the refrigerator 1000, and g is the acceleration of gravity. The weight of the cabinet 200 refers to the weight of the refrigerator 1000 with the door body 100 and the counterweight module 300 removed. Exemplarily, a three-dimensional coordinate system is established as in the above embodiment: the bottom surface midpoint of the contact surface between the cabinet 200 and the door body 100 is taken as the origin O, the vertical direction is taken as the Z axis, the opening direction of the door body 100 is taken as the positive direction of the Y axis, and the left-right symmetry direction of the contact surface between the cabinet 200 and the door body 100 is taken as the X axis. y M is the distance between the y coordinate of the center of gravity of the cabinet 200 and the origin O.

[0052] In some embodiments, the weight of the counterweight module 300 is m0;

[0053]

[0054] wherein M W is the force generated by the cabinet 200 on the center of gravity of the refrigerator 1000, K is the load coefficient, and ∑M Q is the moment generated by the door body 100 on the refrigerator 1000, and y0 is the distance between the center of gravity of the counterweight module 300 and the overturning line of the refrigerator 1000. By setting the load coefficient, a certain safety margin can be provided for the anti-overturning capability of the counterweight module 300. Alternatively, the value of the load coefficient is negatively correlated with the volume of the refrigerator 1000; and / or, the value of the load coefficient is negatively correlated with the self-weight of the refrigerator 1000. The load coefficient can be set and modified according to requirements.

[0055] In some embodiments, Figure 2 a structural diagram of a cavity is provided, as Figure 2 shown, the cabinet 200 includes a cavity 20 in which the compressor 1 is arranged, and the counterweight module 300 is located in the cavity 20. The compressor 1 is used to compress the refrigerant gas into high-temperature and high-pressure gas; the pressure and temperature of the refrigerant are increased through the compression process, so that the refrigerant can release heat to achieve the refrigeration effect. Alternatively, the cavity 20 can also be provided with components such as condensers, evaporators and other components in the refrigeration system.

[0056] Optionally, the compressor 1 may generate vibration and noise when operating, in order to improve the user experience, the compressor 1 can be installed at the bottom of the cabinet 200. As a non-limiting example, the compressor 1 can be installed on the base of the cabinet 200 with a damping device. The counterweight module 300 is arranged in the cavity 20 where the compressor 1 is located, so that the counterweight module 300 is as close to the bottom of the cabinet 200 as possible, increasing the first moment of the counterweight module and improving the anti-overturning capability.

[0057] Optionally, the compressor 1 is one of the components that is prone to failure in the refrigeration system. By arranging the cavity 20 as an openable chamber, the counterweight module 300 can be easily checked, replaced, and other operations can be facilitated by arranging the counterweight module 300 in the cavity 20.

[0058] In this embodiment, by arranging the counterweight module 300 in the cavity 20 containing the compressor 1, the anti-overturning capability of the refrigerator 1000 is improved while the overall modification of the refrigerator 1000 is small.

[0059] In some embodiments, the counterweight module 300 includes at least two counterweight units; the counterweight units are symmetrically arranged around the center of gravity of the refrigerator 1000. Among them, the counterweight module 300 is composed of multiple counterweight units arranged at different positions in the cavity 20. The weight and shape of different counterweight units can be the same or different. In this embodiment, by distributing multiple counterweight units, the volume required for installing the counterweight module 300 can be reduced, and the installation of the counterweight module 300 reduces the degree of space occupation of other components in the refrigerator 1000.

[0060] Optionally, the counterweight module 300 includes a first counterweight unit 2 and a second counterweight unit 3, the mass of the first counterweight unit 2 and the second counterweight unit 3 is the same, and the line between the first counterweight unit 2 and the second counterweight unit 3 is perpendicular to the opening direction of the door body 100. As a non-limiting example, in the case of moving the door body 100 forward and backward, the first counterweight unit 2 and the second counterweight unit 3 are symmetrically arranged on the left and right sides of the overall center of gravity of the refrigerator 1000. Among them, the longer the distance between the first counterweight unit 2 and the second counterweight unit 3 and the center of gravity, the longer the force arm, and the smaller the weight of the first counterweight unit 2 and the second counterweight unit 3. Optionally, the first counterweight unit 2 and the second counterweight unit 3 are arranged at the outermost two sides of the cavity 20.

[0061] In this embodiment, the first counterweight unit 2 and the second counterweight unit 3 with the same mass are symmetrically arranged based on the center of gravity of the refrigerator 1000, so that the arrangement of the counterweight units does not change the center of gravity of the door body 100 and the cabinet 200.

[0062] In some embodiments, Figure 3 Another structural diagram of the cavity is provided, such as Figure 3As shown, the geometric center of the cavity 20 coincides with the center of gravity of the refrigerator 1000, the first counterweight unit 2 is located at the first side of the cavity 20, and the center of gravity of the first counterweight unit 2 is at the midpoint of the length of the first side of the cavity 20 and the midpoint of the height of the cavity 20; the second counterweight unit 3 is located at the second side of the cavity 20, and the center of gravity of the second counterweight unit 3 is at the midpoint of the length of the first side of the cavity 20 and the midpoint of the height of the cavity 20. The first side and the second side are opposite sides in the cavity 20.

[0063] In the embodiment, by setting the center of gravity of the first counterweight unit 2 at the midpoint of the length of the first side of the cavity 20 and the midpoint of the height of the cavity 20, and setting the center of gravity of the second counterweight unit 3 at the midpoint of the length of the first side of the cavity 20 and the midpoint of the height of the cavity 20, the weight of the cavity 20 is evenly distributed, and the original compressor 1 in the cavity 20 is prevented from being affected by the counterweight units and being tilted.

[0064] In the embodiment, by setting the center of gravity of the first counterweight unit 2 at the midpoint of the length of the first side of the cavity 20 and the midpoint of the height of the cavity 20, and setting the center of gravity of the second counterweight unit 3 at the midpoint of the length of the first side of the cavity 20 and the midpoint of the height of the cavity 20, the weight of the cavity 20 is evenly distributed, and the original compressor 1 in the cavity 20 is prevented from being affected by the counterweight units and being tilted.

[0065] In some embodiments, the counterweight module 300 is in contact with the bottom surface of the cabinet 200. Optionally, the counterweight module 300 is connected to the bottom surface of the inner wall of the cabinet 200 by welding, bolting, buckling, or the like, so as to lower the center of gravity of the refrigerator 1000 and improve the resistance of the refrigerator 1000 to tilting and overturning.

[0066] The embodiments of the present application are described and explained below by preferred embodiments. In one embodiment, when the refrigerator is empty, the center of gravity of the cavity 20 of the freezer compartment and the cavity 20 of the refrigerator compartment is close to the rear half of the refrigerator 1000. When the drawer or the door body 100 of the refrigerator is placed with a large amount of heavy objects, the refrigerator is prone to overturning when the door body is opened. When the refrigerator 1000 overturns, it generally tilts forward along the front side of the cabinet 200. At this time, the overturning moment of the refrigerator 1000 is Q greater than the stable moment of the cabinet 200 of the refrigerator 1000 W , so that the refrigerator 1000 tilts forward. Set the overturning moment of the refrigerator 1000 as a negative value, and set the stable moment of the cabinet 200 of the refrigerator 1000 as a positive value. Q Set the overturning moment of the refrigerator 1000 as a negative value, and set the stable moment of the cabinet 200 of the refrigerator 1000 as a positive value. W If the overturning moment of the refrigerator 1000 is set as a positive value, the overall moment of the refrigerator 1000 is calculated asQ +∑M W , ∑M>0, then the refrigerator 1000 does not tip over. In order to prevent errors in calculation or installation, a load coefficient K is set to ensure a certain safety margin, K is 1.02-1.04, and the value is taken according to different volumes and weights of the refrigerator 1000, the larger the volume, the higher the weight, and the smaller the value of K. Finally, ∑M=K*∑M Q +∑M W , if ∑M>0 can be ensured in any case, the refrigerator 1000 is always in a stable state.

[0067] There is no force acting on the back of the refrigerator 1000, and it is impossible to tip over backward. In related technologies, the refrigerator 1000 is generally symmetrically designed as an example, and the possibility of tipping over to the left and right of the refrigerator 1000 is also almost non-existent, so the overturning line of the refrigerator 1000 is and only the front side line of the cabinet 200. On this premise, in the closed door state, the gravity of the cabinet 200 part itself and the gravity of the objects stored in the refrigerator 1000 are all behind the overturning line, relative to ∑M W , ∑M Q corresponding to the gravity of the door body 100, it is almost 0, and it is impossible to appear tipping over problem, tipping over can only occur in the working condition of storing more heavy objects and opening the door body 100, so the overturning line is the front side of the cabinet 200.

[0068] Figure 4 A coordinate diagram based on the anti-overturning refrigerator is provided, as shown in Figure 4 , the midpoint of the overturning line is defined as the origin, and in the coordinate system as shown in the figure, the door body 100 (the refrigeration door and the door body 100 of the cross refrigerator 1000, etc.) rotating around the hinge can be basically regarded as a symmetrical object up and down and left and right, and the center of gravity is approximately the centroid position. The overturning distance of the door body 100 is equal to one-half of the width of the door body 100, as shown in Figure 4 , the overturning distance of the freezer door of the French refrigerator 1000 is the maximum push-out distance of the freezer door. According to the distance and gravity, the M Q of the corresponding object can be calculated Q = G*y Q = mgy Q , wherein the projection position of the door body 100 on the xOy plane is considered, and the distance y Q is the y coordinate of the center of gravity of the door body 100 in the above coordinate system. Since y is negative, the calculated overturning moment M Q is naturally negative, and the sum of M Q on all overturning sides can be calculated ∑M Q .

[0069] In several possible dangerous working conditions, the cabinet 200 is basically not placed with objects, so ∑M W is only related to the cabinet 200 itself of the refrigerator 1000, and ∑MW = M W = mgy M , m is the net weight of the refrigerator 1000 minus the weight of the door 100, y M is the y coordinate of the center of gravity of the refrigerator 1000 in the above coordinate system, and the calculated ∑M W is the anti-overturning moment of the refrigerator 1000 itself. The ∑M at this time is calculated as K*∑M Q +∑M W If ∑M≥0, the refrigerator 1000 will not have stability problems in normal use; if ∑M<0, the refrigerator 1000 has an overturning risk, and at this time, in the case of not changing most of the structure of the refrigerator 1000, in the case of a constant overturning moment, ∑M W is selected to be increased, while the weight and center of gravity of the refrigerator 1000 at this time are fixed, the anti-overturning moment of the refrigerator 1000 itself is constant, and the anti-overturning capacity of the refrigerator 1000 can be improved by increasing the counterweight module 300.

[0070] The center of gravity coordinates of the counterweight unit are set as (x0, y0, z0), and the anti-overturning moment of the counterweight module 300 is M W =m0gy0, under the consideration of not increasing too much self-weight of the refrigerator 1000, y0 should be as large as possible, therefore, the installation position is placed at the outermost two sides of the presser compartment position, the force arm is long, the increased weight is small, and the two are symmetrically distributed, the volume of a single counterweight is small, does not occupy the space of other parts, and has less changes to the overall refrigerator 1000. Figure 5 Another structural diagram of an anti-overturning refrigerator is provided. The required increased mass m0 of the counterweight unit is:

[0071]

[0072] Considering the installation convenience and strength, the counterweight module 300 is designed to be a symmetrical shape (such as a cylindrical shape), thereby reducing the possibility of installation errors. Alternatively, the counterweight module 300 includes two counterweight units with the same mass and shape, in the XOY plane, the two counterweights are respectively installed at the maximum and minimum x positions, in the XOZ and YOZ planes, the counterweights are installed in the middle of the presser compartment (for the purpose of installation convenience and less changes, the counterweights can also be installed at other positions). The presser compartment is regarded as a cuboid cavity 20, which is represented as follows:

[0073]

[0074] The center of gravity coordinates of a single counterweight unit are as follows:

[0075]

[0076] The coordinates of a single counterweight unit are approximately and

[0077] The mass m0 of the single weight unit is as follows:

[0078]

[0079] At the designated position and The installation mass is The overturning problem of the refrigerator 1000 can be avoided. Alternatively, the installation position of the weight module 300 can also be determined according to the specific design of the refrigerator 1000, and any convenient installation position can be freely selected. After the installation position is determined, the weight is determined according to the above method to ensure that the refrigerator 1000 does not overturn.

[0080] Those skilled in the art should understand that the technical features of the above-described embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not contradict, they should be considered as within the scope of the present disclosure.

[0081] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A tip-over resistant refrigerator characterized by, The refrigerator comprises a door body, a cabinet and a counterweight module, the door body is connected with the cabinet, the counterweight module is arranged inside the cabinet and connected with the inner wall of the cabinet; wherein the connecting line of the center of gravity of the door body and the center of gravity of the counterweight module is perpendicular to the opening direction of the door body.

2. The tip-over preventing refrigerator according to claim 1, characterized in that, The counterweight module generates a first moment of force on the refrigerator, which is greater than or equal to the sum of a second moment of force and a third moment of force, wherein the second moment of force is the product of the moment of force generated by the door body on the refrigerator and a load coefficient, and the third moment of force is the moment of force generated by the cabinet on the refrigerator.

3. The tip-over resistant refrigerator of claim 2, wherein, The second moment of the door body is ∑M Q ; wherein m Q is the weight of the door, y Q is the distance between the push-out position of the door and the overturning line of the refrigerator, and g is the acceleration of gravity.

4. The tip-over preventing refrigerator according to claim 2, wherein The third moment generated by the box to the center of gravity of the refrigerator is ∑M W ; ∑M W = m M gy M where m M is the weight of the cabinet, y M is the distance between the center of gravity of the cabinet and the overturning line of the refrigerator, and g is the acceleration of gravity.

5. The tip-over resistant refrigerator according to any one of claims 1 to 4, characterized in that, The weight of the counterweight module is m0. wherein M W is the force generated by the box on the center of gravity of the refrigerator, K is the load coefficient, ∑M Q is the moment generated by the door body on the refrigerator, y0 is the distance between the center of gravity of the counterweight module and the overturning line of the refrigerator.

6. The tip-over preventing refrigerator according to claim 1, wherein The cabinet comprises a cavity provided with a compressor, and the counterweight module is located in the cavity.

7. The tip-over preventing refrigerator according to claim 1 or 6, wherein The counterweight module comprises at least two counterweight units, which are symmetrically arranged around the center of gravity of the refrigerator.

8. The tip-over preventing refrigerator according to claim 7, characterized in that, The counterweight module comprises a first counterweight unit and a second counterweight unit, the mass of the first counterweight unit is the same as that of the second counterweight unit, and the connecting line between the first counterweight unit and the second counterweight unit is perpendicular to the opening direction of the door body.

9. The tip-over resistant refrigerator of claim 8, wherein, The geometric center of the cavity coincides with the center of gravity of the refrigerator, the first counterweight unit is located on the first side of the cavity, and the center of gravity of the first counterweight unit is located at the midpoint of the length of the first side of the cavity and the midpoint of the height of the cavity; the second counterweight unit is located on the second side of the cavity, and the center of gravity of the second counterweight unit is located at the midpoint of the length of the first side of the cavity and the midpoint of the height of the cavity, the first side and the second side are opposite sides in the cavity.

10. The tip-over resistant refrigerator of claim 1, wherein, The counterweight module is in contact with the bottom surface of the cabinet.

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