CN116105446A - Door-in-door structure and refrigerator - Google Patents

Abstract

The invention relates to a door-in-door structure and a refrigerator, and relates to the technical field of refrigerators. The door-in-door structure comprises a box body, wherein a first door body is hinged to the box body, a through groove communicated with the inner space of the box body is formed in the first door body, at least one third door body is arranged at one end, away from the box body, of the through groove, a driving assembly used for controlling the opening and closing of the third door body is arranged on the third door body, and the through groove can be blocked when all the third door bodies are in a closed state. Compared with the refrigerator door which is completely opened, the refrigerator door can reduce cold air leakage, so that the refrigerator door can greatly reduce the energy consumption of daily use without affecting the functionality of the refrigerator.

Description

Door-in-door structure and refrigerator

technical field

The invention relates to the technical field of refrigerators, in particular to a door-in-door structure and a refrigerator.

Background technique

With the improvement of people's living standards, the demand for large refrigerators is also increasing. A large number of large-volume refrigerators have appeared on the high-end market, but usually the refrigerator door needs to be fully opened to take out the food stored in the refrigerator. The refrigerator door is fully opened. In this state, it will cause the cold air of the refrigerator to leak. Therefore, there is an urgent need for a door-in-door structure and a refrigerator, which can reduce the leakage of cold air compared with fully opening the refrigerator door, so that it can greatly reduce the energy consumption of daily use without affecting the functionality of the refrigerator.

Contents of the invention

The invention provides a door-in-door structure and a refrigerator, which can reduce cold air leakage compared with fully opening the refrigerator door, so that the energy consumption of daily use can be greatly reduced without affecting the functionality of the refrigerator.

In the first aspect, the present invention provides a door-in-door structure, which includes a box body, a first door body is hinged on the box body, and a through groove communicating with the inner space of the box body is opened on the first door body. At least one third door body is provided at one end of the through slot along the extending direction away from the box body, and the third door body is provided with a driving assembly for controlling its opening and closing, and all the third door bodies are in The through groove can be blocked in the closed state.

In one embodiment, the first door body is further provided with a second door body, and the second door body has access openings corresponding to the through slots, and all the third door bodies are arranged on The second door body is used for opening and closing the access opening. Through this embodiment, the third door body and components used for installation can be installed on the second door body, so that enough space is reserved on the first door body for storage.

In one embodiment, one end of the second door body is hingedly connected to the first door body. Through this embodiment, the opening of the third door body can be individually controlled, and all the third door bodies can be fully opened through the second door body, so that it is convenient to take out objects wider than the third door body.

In one embodiment, a partition is provided inside the access opening, and the partition divides the access opening into a plurality of openings that correspond to different positions of the through groove one by one. The third The door bodies are respectively arranged at the openings. Through this embodiment, the third door is matched with the partition to divide the access opening into multiple openings, and the third door matches the opening, reducing the area of the third door and further reducing the need to open the third door. Air-conditioning leaks when you are in the body.

In one embodiment, the driving assembly includes a rotating shaft and a steering gear, one end of the third door is hinged to the second door through the rotating shaft, and one end of the rotating shaft is connected to the steering gear. Through this embodiment, the third door body can be automatically rotated around the rotation axis through the steering gear, which is convenient for automatic control of the opening and closing of the third door body, and does not require manual opening and closing of the third door body. The additional arrangement of grooves or handles etc. can improve the overall compactness thereof.

In one embodiment, the third door is provided with a permanent magnet, and the separator and/or the second door is provided with an electromagnet that is compatible with the permanent magnet. Through this embodiment, through the cooperation of the electromagnet and the permanent magnet, it is further possible to control the opening and closing and locking of the third door body through commands, so as to ensure close contact and sealing when closed.

In one embodiment, the third door body is further provided with a pressure sensor, and the pressure sensor can be in contact with the partition plate and/or the second door body.

In one embodiment, a shelf is also erected in the through trough, slide rails are respectively provided on the opposite sides of the through trough, and two ends of the shelf are provided with matching chute. Through this embodiment, the shelf increases the space inside the through slot for fixing and placing objects, thereby increasing the utilization rate of space.

In one embodiment, the cross-sectional shape of the slide rail is dovetail or T-shaped. Through this embodiment, the integrity of the shelf and the first door body is guaranteed.

In a second aspect, the present invention provides a refrigerator, including the above-mentioned door-in-door structure.

The above technical features can be combined in various suitable ways or replaced by equivalent technical features, as long as the purpose of the present invention can be achieved.

Compared with the prior art, the door-in-door structure and the refrigerator provided by the present invention have at least the following beneficial effects:

By setting a third door on the first door, the third doors are controlled independently of each other, opening the third door can play the role of opening the first door, and opening the third door can take out and open the first door. The object can only be taken out by the door body, but compared with the first door body, the third door body has a smaller area, which can reduce the leakage of cold air, so that it can greatly reduce the energy consumption of daily use without affecting the functionality of the refrigerator .

Description of drawings

Hereinafter, the present invention will be described in more detail based on the embodiments with reference to the accompanying drawings.

Fig. 1 is a schematic diagram when the second door body of the present invention is in an open state;

Fig. 2 is a schematic diagram of the third door body of the present invention when it is in an open state;

Fig. 3 is the explosion schematic diagram of the present invention;

Fig. 4 is a schematic cross-sectional view of the third door when it is closed;

In the figures, the same parts are given the same reference numerals. The drawings are not to scale.

Reference signs:

10. The first door body; 11. Through slot; 12. Shelf; 20. The second door body; 30. The third door body; 40. Box body; Machine; 70, electromagnet; 80, permanent magnet.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing.

Example 1

As shown in Figures 1-3, the present invention provides a door-in-door structure, including a box body 40, on which a first door body 10 is hinged, and on the first door body 10 there is a door connecting the inner space of the box body 40. Through slot 11, at least one third door body 30 is provided at the end of the through slot 11 away from the box body 40, and the third door body 30 is provided with a driving assembly for controlling its opening and closing. When all the third door bodies 30 are in the closed state The through groove 11 can be blocked.

Specifically, the illustrated box body 40 is a double-door structure, and the third door body 30 is arranged on the first door body 10 on one side. It should be noted that the door-in-door structure of the present application is also applicable to single-door doors. The structure of the box body 40, or the third door body 30 is arranged on the two door body results of the double door at the same time. One side of the first door body 10 is hinged to the box body 40 through a hinge. The through slot 11 runs through the first door body 10 , and the cross-sectional shape of the through slot 11 is square to facilitate the built-in shelf 12 in the through slot 11 . The side of the through groove 11 close to the inner space of the box body 40 is the inner side, and the side away from the inner space of the box body 40 is the outer side. The third door body 30 is arranged on the outer side of the through groove 11. It should be noted that the third door body 30 can be It is directly arranged inside the through groove 11, that is, on the first door body 10, and also can be arranged outside the through groove 11, not directly connected with the first door body 10, but when the third door body 30 is in the closed state , can block the through groove 11 to ensure the normal operation of the box body 40 .

In one embodiment, the first door body 10 is also provided with a second door body 20, the second door body 20 has a pick-and-place opening corresponding to the through groove 11, and all the third door bodies 30 are arranged on the second door body. body 20 and is used for opening and closing the pick-and-place opening. Through this embodiment, the third door body 30 and components used for installation can be installed on the second door body 20 , so that sufficient space is reserved on the first door body 10 for storage.

Specifically, when there is only one third door body 30, the area of the third door body 30 is smaller than the area of the first door body 10, and it is further preferred that the area of the third door body 30 is smaller than the cross-sectional area of the through groove 11, that is, open The size of the object that can be taken out by the second door body 20 is larger than the size that can be taken out by opening the third door body 30 .

In one embodiment, one end of the second door body 20 is hingedly connected with the first door body 10 . Through this embodiment, the opening of the third door body 30 can be individually controlled, and all the third door bodies 30 can be fully opened through the second door body 20 , which is convenient for taking out objects wider than the third door body 30 .

In one embodiment, a partition 50 is arranged inside the access opening, and the partition 50 divides the access opening into a plurality of openings 51 corresponding to different positions of the through groove 11, and the third door body 30 is respectively arranged on the There are 51 exits. Through this embodiment, the third door body 30 is matched with the partition plate 50, and the access opening is subdivided into a plurality of openings 51, and the third door body 30 is matched with the openings 51 to reduce the area of the third door body 30 , to further reduce the leakage of cold air when the third door 30 is opened.

Specifically, the partitions 50 can be arranged side by side, or they can be arranged horizontally and vertically, as shown in Figures 1-3, two partitions 50 are arranged horizontally and vertically, and the two partitions 50 divide the through groove 11 into two openings. 51 area, each opening 51 is provided with a third door body 30, the third door body 30 can be controlled separately to open its corresponding opening 51, when all the third door body 30 is in the closed state, it can close the through groove 11. Ensure the normal operation of the box body 40 .

In one embodiment, the drive assembly includes a rotating shaft and a steering gear 60 , one end of the third door body 30 is hinged to the second door body 20 through the rotating shaft, and one end of the rotating shaft is connected to the steering gear 60 . Through this embodiment, the third door body 30 can be automatically rotated around the axis of rotation through the steering gear 60, which is convenient for automatic control of the opening and closing of the third door body 30, and does not require manual opening and closing of the third door body 30. Additional grooves or handles are provided on the three-door body 30, which can improve its overall compactness.

Specifically, taking FIG. 2 as a column, two partitions 50 are arranged horizontally and vertically, and divide the through groove 11 into four openings 51. The four openings 51 are respectively provided with a third door body 30, and the third door The outer side of the body 30 is hinged with the second door body 20 through a rotating shaft. In fact, the second door body 20 is provided with a through groove 11 structure aligned with the first door body 10. The partition plate 50 is actually the second door body. The through groove 11 structure on the body 20. A steering gear 60 is arranged on the rotating shaft of each third door body 30 respectively, and according to actual usage requirements, the one-time rotation angle of the steering gear 60 can be set as required.

As shown in FIG. 4 , in one embodiment, the third door body 30 is provided with a permanent magnet 80 , and the partition plate 50 and/or the second door body 20 is provided with an electromagnet 70 compatible with the permanent magnet 80 . Through this embodiment, through the cooperation of the electromagnet 70 and the permanent magnet 80 , it is further possible to control the opening, closing and locking of the third door body 30 through commands, so as to ensure a tight seal when closed.

Specifically, the permanent magnet 80 cooperates with the electromagnet 70 to generate a mutual attracting force when electrified to ensure the stability of the third door 30 when it is closed and avoid the third door 30 from opening arbitrarily. It should be further explained that when the number of the third door 30 is only one, or when the third door 30 is opened backwards, the electromagnet 70 is installed on the second door 20, and when the third door 30 is opened opposite , the electromagnet 70 is installed on the partition 50, and a groove for installing the electromagnet 70 is provided on the partition 50. After the electromagnet 70 is installed, an end cover can be set at the upper end of the groove to play a role in the electromagnet. 70 closed functions.

In one embodiment, the third door body 30 is further provided with a pressure sensor, and the pressure sensor can be in contact with the partition plate 50 and/or the second door body 20 .

Specifically, the pressure sensors are arranged at the corners of the third door bodies 30 . As shown in FIG. 3 , the pressure sensors arranged on the four third door bodies 30 are located at the middle positions of the four third door bodies 30 as a whole. After the pressure sensor receives the door-opening signal input, the electromagnet 70 generates a force that repels the permanent magnet 80, and the steering gear 60 can be assisted to automatically open the third door 30. After the pressure sensor receives the door-closing signal input, the electromagnet 70 generates a force that is attracted to the permanent magnet 80, so that the steering gear 60 can be assisted to automatically attract the door body, and under the action of the electromagnet 70, the third door body 30 and the The inner frame of the second door body 20 is more tightly closed to reduce cold leakage. Due to the limited space of the third door body 30, through the mutual attraction and repulsion of the electromagnet 70 and the permanent magnet 80, there is no need to buckle by hand and reserve a hand position, which improves the aesthetics of the front of the door body.

In one embodiment, a shelf 12 is also erected in the through groove 11, slide rails are respectively provided on the opposite sides of the through groove 11, and slide grooves adapted to the slide rails are provided at both ends of the shelf 12. . Through this embodiment, the shelf 12 increases the space inside the through slot for fixing and placing objects, thereby increasing the utilization rate of the space.

Specifically, the slide rails can be arranged on the side wall of the slot 11 or the bottom wall of the slot 11 , and a plurality of racks 12 can be arranged and arranged vertically.

In one embodiment, the cross-sectional shape of the slide rail is dovetail or T-shaped. Through this embodiment, the integrity of the shelf 12 and the first door body 10 is ensured.

Example 2

The present invention proposes a refrigerator, which includes the above-mentioned door-in-door structure, and further has all the technical effects possessed by it. For other structures not described in detail, the existing technology can be used to make it possess the functions possessed by the refrigerator.

In describing the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", " The orientation or positional relationship indicated by "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, so as to Specific orientation configurations and operations, therefore, are not to be construed as limitations on the invention.

While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for parts thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims (10)

1. The utility model provides a door in door structure, includes the box, it has first door body to articulate on the box, its characterized in that, the intercommunication has been seted up on the first door body the logical groove of box inner space, the logical groove is kept away from the one end of box is provided with at least one third door body, be provided with the drive assembly who is used for controlling its opening and close on the third door body, all can the shutoff when the third door body is in the closed state logical groove.

2. The door-in-door structure according to claim 1, wherein the first door body is further provided with a second door body, the second door body is provided with a taking and placing opening corresponding to the through slot, and all the third door bodies are arranged on the second door body and used for opening and closing the taking and placing opening.

3. The door-in-door structure according to claim 2, wherein one end of the second door body is hinged with the first door body.

4. The door-in-door structure according to claim 2, wherein the driving assembly comprises a rotating shaft and a steering engine, one end of the third door body is hinged with the second door body through the rotating shaft, and one end of the rotating shaft is connected with the steering engine.

5. The door-in-door structure according to any one of claims 2 to 4, wherein a partition plate is provided inside the pick-and-place opening, the partition plate partitions the pick-and-place opening into a plurality of sub-openings corresponding to different positions of the through groove one by one, and the third door bodies are respectively provided at the sub-openings.

6. The door-in-door structure according to claim 5, wherein a permanent magnet is provided on the third door body, and an electromagnet capable of being matched with the permanent magnet is provided on the partition plate and/or the second door body.

7. The door-in-door structure according to claim 5, wherein a pressure sensor is further provided on the third door body, the pressure sensor being capable of being in contact with the partition plate and/or the second door body.

8. The door-in-door structure according to any one of claims 1 to 4, wherein a rack is further erected in the through groove, sliding rails are respectively arranged on two opposite side groove walls of the through groove, and sliding grooves matched with the sliding rails are formed in two ends of the rack.

9. The door-in-door structure of claim 8, wherein the cross-sectional shape of the sliding rail is dovetail or T-shaped.

10. A refrigerator comprising the in-door structure as claimed in any one of claims 1 to 9.

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