Refrigerator

Abstract

The utility model relates to the technical field of household appliances, in particular to a refrigerator. A refrigerator comprises a refrigerator body and a drawer door used for opening and closing the refrigerator body. The refrigerator further comprises a signal element, an electromagnet and a permanent magnet, the signal element is installed on the drawer door or the refrigerator body and used for providing a door opening signal, one of the electromagnet and the permanent magnet is arranged on the side face, facing the drawer door, of the refrigerator body, the other is arranged on the drawer door, the electromagnet is provided with a first end, and the permanent magnet is provided with a second end. The first end is matched with the second end; wherein the electromagnet is in signal connection with the signal element and can be electrified and change the magnetic pole of the first end in response to a door opening signal provided by the signal element, so that the magnetic pole of the first end is opposite to the magnetic pole of the second end. By arranging the signal element, the electromagnet and the permanent magnet, the drawer door is closed more tightly or the drawer door is assisted to be opened according to the principle that opposite poles of the magnet attract each other or like poles of the magnet repel each other.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and in particular to a refrigerator. Background Technology

[0002] In modern life, refrigerators are essential household appliances, and their convenience and functionality are receiving increasing attention. Traditional refrigerator door opening methods typically rely on manual force from the user; however, this can be inconvenient in practice. When the temperature inside the refrigerator drops, causing a pressure difference between the inside and outside, the suction between the door and the refrigerator body increases, often requiring considerable force to open manually. This can be strenuous for children, the elderly, or those with limited strength.

[0003] To improve the ease of opening refrigerator doors, some door-assist devices have emerged on the market. For example, some use a motor combined with a push rod, where the motor drives the push rod to push and assist in opening the door. However, this type of device is relatively bulky and requires more installation space; additionally, the motor requires a longer response and action time, resulting in slower door opening. Utility Model Content

[0004] Therefore, it is necessary to provide a refrigerator that can save installation space and has a fast door opening response.

[0005] To solve the above-mentioned technical problems, this application provides the following technical solution:

[0006] A refrigerator includes a cabinet and drawer doors, the drawer doors being used to open and close the cabinet;

[0007] The refrigerator also includes a signal element, an electromagnet, and a permanent magnet. The signal element is installed on the cabinet or the drawer door to provide an opening signal. One of the electromagnet and the permanent magnet is disposed on the side of the cabinet facing the drawer door, and the other is disposed on the drawer door. The electromagnet has a first end, and the permanent magnet has a second end, and the first end and the second end cooperate with each other.

[0008] The electromagnet is signal-connected to the signal element, and in response to an opening signal provided by the signal element, the electromagnet can be energized and its magnetic poles at the first end can be changed so that the magnetic poles at the first end are opposite to those at the second end.

[0009] Understandably, by incorporating signal elements, electromagnets, and permanent magnets, the electromagnets change their magnetic poles in response to the electrical signals from the signal elements. This utilizes the principle of attraction between opposite magnetic poles or repulsion between like poles to make the drawer door close more tightly or to assist in opening the drawer. This design eliminates the need for motor push rods and other devices, resulting in a smaller overall structure and effectively saving installation space. Furthermore, the movement of the electromagnet can be almost synchronous with the opening action, leading to faster opening response and better performance.

[0010] In one embodiment, the drawer door is connected to the cabinet via a slide rail, and the electromagnet or the permanent magnet disposed on the cabinet is positioned close to the slide rail.

[0011] Understandably, placing the electromagnet or permanent magnet close to the slide rail reduces the torque experienced by the drawer door when it opens, making the opening process smoother.

[0012] In one embodiment, the electromagnet is disposed on the housing, and the permanent magnet is disposed on the drawer door;

[0013] The box contains a pre-embedded box, and the box has an installation hole on the side facing the drawer door. The electromagnet is installed on the pre-embedded box through the installation hole.

[0014] In one embodiment, the refrigerator further includes a mounting box, which is mounted on a pre-embedded box through the mounting hole, and the electromagnet is mounted on the mounting box.

[0015] In one embodiment, the mounting box and the pre-embedded box are detachably connected.

[0016] In one embodiment, the mounting box is provided with a first buckle, and the pre-embedded box is provided with a snap-fit ​​hole, and the first buckle and the snap-fit ​​hole are engaged in a snap-fit ​​relationship.

[0017] In one embodiment, the electromagnet is detachably mounted to the mounting box.

[0018] In one embodiment, the mounting box is provided with a receiving hole, and a second buckle is provided on the wall of the receiving hole;

[0019] The electromagnet is installed and housed within the receiving hole and is connected to the second snap fastener.

[0020] In one embodiment, the embedded box is provided with a support rib, and the electromagnet abuts against the support rib.

[0021] In one embodiment, a recessed groove is provided around the mounting hole, and a baffle is provided on the mounting box. The baffle is received in the recessed groove and abuts against and limits the bottom of the recessed groove.

[0022] Compared to existing technologies, this refrigerator incorporates signal elements, electromagnets, and permanent magnets. The electromagnets change their magnetic poles in response to electrical signals from the signal elements, thus utilizing the principle of attraction between opposite magnetic poles or repulsion between like poles to achieve a tighter drawer door closure or assist in opening the drawer. This design eliminates the need for motor push rods and other devices, resulting in a smaller overall structure and effectively saving installation space. Furthermore, the movement of the electromagnets is essentially synchronized with the door opening action, leading to faster response and better performance. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the refrigerator structure provided in this application.

[0025] Figure 2 This is a schematic diagram of the permanent magnet installation location provided in this application.

[0026] Figure 3 A schematic diagram of the embedded box structure provided for this application.

[0027] Figure 4 A schematic diagram of the structure of the electromagnet provided in this application, which is installed in a pre-embedded box via a mounting box.

[0028] Figure 5 For this application Figure 4 The front view.

[0029] Figure 6 For this application Figure 5 Sectional view of AA.

[0030] Figure 7 This is a schematic diagram of the structure of the electromagnet provided in this application mounted in the mounting box.

[0031] The component labels are as follows:

[0032] 100. Refrigerator; 10. Cabinet; 11. Slide rail; 12. Embedded box; 121. Snap-fit ​​hole; 122. Support rib; 123. Outlet hole; 13. Mounting hole; 131. Recessed groove; 20. Drawer door; 30. Signal element; 40. Electromagnet; 41. First end; 50. Permanent magnet; 51. Second end; 60. Mounting box; 61. First snap-fit; 62. Receiving hole; 63. Second snap-fit; 64. Baffle. Detailed Implementation

[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0034] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0038] Please see Figure 1This application provides a refrigerator 100 for preserving items. The refrigerator 100 includes a cabinet 10 and drawer doors 20. The drawer doors 20 are installed on the cabinet 10 and are used to open and close the cabinet 10 to facilitate the retrieval or storage of items.

[0039] Please refer to Figures 1 to 7 The refrigerator 100 also includes a signal element 30, an electromagnet 40, and a permanent magnet 50. The signal element 30 is installed on the cabinet 10 or the drawer door 20 to provide an opening signal. One of the electromagnet 40 and the permanent magnet 50 is disposed on the side of the cabinet 10 facing the drawer door 20, and the other is disposed on the drawer door 20. The electromagnet 40 has a first end 41, and the permanent magnet 50 has a second end 51, and the first end 41 and the second end 51 cooperate with each other. The electromagnet 40 is signal-connected to the signal element 30, and in response to the opening signal provided by the signal element 30, the electromagnet 40 can be energized and the magnetic pole of the first end 41 can be changed so that the magnetic pole of the first end 41 is opposite to the magnetic pole of the second end 51.

[0040] It should be noted that related technologies typically utilize mechanical structures such as push rods to assist in opening the drawer. A motor responds to the drawer opening action, then activates and drives the push rod to push the drawer door open. This application, however, uses an electromagnet 40 and a permanent magnet 50. An opening signal controls the electromagnet 40 to change its magnetic poles, thus utilizing the principle of magnetic repulsion to assist in opening the drawer door 20. This method eliminates the need for a motor and push rod, resulting in a smaller overall structure, less space required, and a faster response time. Furthermore, the electromagnet 40 directly responds to the opening signal provided by the signal element 30, essentially matching the opening action, thus providing better assistance in opening the drawer.

[0041] Please continue to refer to this. Figure 1 The cabinet 10 is equipped with a slide rail 11, and the drawer door 20 is connected to the cabinet 10 via the slide rail 11. An electromagnet 40 or a permanent magnet 50, mounted on the cabinet 10, is positioned close to the slide rail 11. This ensures that when the door is opened, the point of application of magnetic force is closer to the sliding support point of the drawer door 20. This reduces the torque experienced by the drawer door 20 when opening, allowing the electromagnet 40 to more effectively push the drawer door 20 to slide smoothly along the slide rail 11, reducing resistance and jamming during opening, and improving the smoothness and stability of opening.

[0042] In one embodiment, the signal element 30 is configured as a displacement sensor or a Hall element. When the displacement sensor or Hall element senses that the drawer door 20 has been pulled open, the electromagnet 40 is energized, causing the electromagnet 40 and the permanent magnet 50 to repel each other, thereby achieving assisted door opening.

[0043] like Figure 2 and Figure 3As shown, the electromagnet 40 is mounted on the housing 10, and the permanent magnet 50 is mounted on the drawer door 20. A pre-embedded box 12 is provided inside the housing 10, and a mounting hole 13 is provided on the side of the housing 10 facing the drawer door 20. The electromagnet 40 is mounted on the pre-embedded box 12 through the mounting hole 13. In this way, the pre-embedded box 12 provides a stable mounting position for the electromagnet 40, preventing interference and collisions from other components inside the housing 10. The positions of the electromagnet 40 and the permanent magnet 50 can also be interchanged, i.e., the electromagnet 40 is mounted on the drawer door 20, and the permanent magnet 50 is mounted on the housing 10.

[0044] Furthermore, the embedded box 12 is provided with a support rib 122, and the electromagnet 40 abuts against the support rib 122. The support rib 122 can improve the structural strength of the embedded box 12 and support the electromagnet 40 under stress, preventing the electromagnet 40 from retracting into the mounting hole 13 after being stressed, thereby improving the working stability of the electromagnet 40.

[0045] Optionally, the support rib 122 may be in the shape of a cross, a sun, or the like.

[0046] In one embodiment, the pre-embedded box 12 is also provided with a wire outlet hole 123, through which the electromagnet 40 is connected to an external circuit.

[0047] like Figures 4 to 7 As shown, the refrigerator 100 also includes a mounting box 60, which is mounted on the pre-embedded box 12 through mounting holes 13, and the electromagnet 40 is mounted on the mounting box 60. Thus, during installation, only the mounting box 60 with the electromagnet 40 needs to be installed on the pre-embedded box 12, making installation more convenient.

[0048] Preferably, the mounting box 60 and the embedded box 12 are detachably connected. This facilitates the overall disassembly and assembly of the electromagnet 40 for maintenance. Here, the detachable connection between the mounting box 60 and the embedded box 12 can be a threaded connection, a snap-fit ​​connection, or the like.

[0049] In this embodiment, as Figure 6 As shown, the mounting box 60 and the embedded box 12 are connected by a snap-fit. Specifically, the mounting box 60 is provided with a first snap-fit ​​61, and the embedded box 12 is provided with a snap-fit ​​hole 121. The first snap-fit ​​61 and the snap-fit ​​hole 121 are engaged. Here, the positions of the first snap-fit ​​61 and the snap-fit ​​hole 121 can also be interchanged, which will not be elaborated here.

[0050] like Figure 7As shown, the mounting box 60 is provided with a receiving hole 62, and a second latch 63 is provided on the wall of the receiving hole 62; the electromagnet 40 is installed and received in the receiving hole 62 and is engaged with the second latch 63. This ensures the electromagnet 40 is securely installed in the mounting box 60, preventing it from loosening or falling off due to vibration or other external forces during operation. At the same time, this latching method also facilitates the installation and removal of the electromagnet 40, improving assembly efficiency.

[0051] For further information, please continue to refer to [link / reference]. Figure 6 The mounting box 60 is provided with a baffle 64, and a recess 131 is provided around the mounting hole 13. The baffle 64 is received in the recess 131 and abuts against the bottom of the recess 131 for limitation. In this way, combined with the first buckle 61, dual positioning of the mounting box 60 can be achieved, improving its stability.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A refrigerator, comprising a cabinet (10) and drawer doors (20), the drawer doors (20) being used to open and close the cabinet (10); Its features are, The refrigerator also includes a signal element (30), an electromagnet (40), and a permanent magnet (50). The signal element (30) is installed on the cabinet (10) or the drawer door (20) to provide an opening signal. One of the electromagnet (40) and the permanent magnet (50) is disposed on the side of the cabinet (10) facing the drawer door (20), and the other is disposed on the drawer door (20). The electromagnet (40) has a first end (41), and the permanent magnet (50) has a second end (51), and the first end (41) and the second end (51) cooperate with each other. The electromagnet (40) is signal-connected to the signal element (30), and in response to the door opening signal provided by the signal element (30), the electromagnet (40) can be energized and the magnetic pole of the first end (41) can be changed so that the magnetic pole of the first end (41) is opposite to the magnetic pole of the second end (51).

2. The refrigerator according to claim 1, characterized in that, The drawer door (20) is connected to the box body (10) via a slide rail (11), and the electromagnet (40) or the permanent magnet (50) on the box body (10) is positioned close to the slide rail (11).

3. The refrigerator according to claim 1, characterized in that, The electromagnet (40) is disposed on the housing (10), and the permanent magnet (50) is disposed on the drawer door (20); The box (10) is provided with a pre-embedded box (12), and the box (10) has an installation hole (13) on the side facing the drawer door (20). The electromagnet (40) is installed on the pre-embedded box (12) through the installation hole (13).

4. The refrigerator according to claim 3, characterized in that, The refrigerator also includes an installation box (60), which is installed on the pre-embedded box (12) through the installation hole (13), and the electromagnet (40) is installed on the installation box (60).

5. The refrigerator according to claim 4, characterized in that, The mounting box (60) and the embedded box (12) are detachably connected.

6. The refrigerator according to claim 5, characterized in that, The mounting box (60) is provided with a first buckle (61), and the pre-embedded box (12) is provided with a snap-fit ​​hole (121). The first buckle (61) and the snap-fit ​​hole (121) are engaged in a snap-fit ​​relationship.

7. The refrigerator according to claim 4, characterized in that, The electromagnet (40) is detachably mounted in the mounting box (60).

8. The refrigerator according to claim 7, characterized in that, The mounting box (60) is provided with a receiving hole (62), and a second buckle (63) is provided on the hole wall of the receiving hole (62); The electromagnet (40) is installed and housed in the receiving hole (62) and is engaged with the second buckle (63).

9. The refrigerator according to claim 7, characterized in that, The pre-embedded box (12) is provided with a support rib (122), and the electromagnet (40) abuts against the support rib (122).

10. The refrigerator according to claim 4 or 9, characterized in that, The mounting hole (13) is provided with a sink groove (131) in the circumferential direction. The mounting box (60) is provided with a baffle (64). The baffle (64) is received in the sink groove (131) and abuts against and limits the bottom of the sink groove (131).

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