CN108613466B

CN108613466B - Refrigeration appliance and heat insulation door thereof

Info

Publication number: CN108613466B
Application number: CN201611142495.7A
Authority: CN
Inventors: 章传; 吕萍; 许耀国
Original assignee: BSH Home Appliances Co Ltd; Bo Xihua Electric Jiangsu Co Ltd
Current assignee: BSH Home Appliances Co Ltd; Bo Xihua Electric Jiangsu Co Ltd
Priority date: 2016-12-12
Filing date: 2016-12-12
Publication date: 2021-07-06
Anticipated expiration: 2036-12-12
Also published as: CN108613466A

Abstract

A refrigerator (R) and an insulated door (D) thereof, wherein the insulated door (D) comprises an insulated glass module (11) and a door frame (20) circumferentially surrounding the edge of the insulated glass module (11), and the door frame (20) comprises a plurality of insulated cavities distributed along the circumferential direction; at least one pair of circumferentially adjacent insulating cavities are isolated from each other. The technical scheme of the invention can improve the heat insulation effect of the heat insulation door.

Description

Refrigeration appliance and heat insulation door thereof

Technical Field

The invention relates to the field of refrigeration, in particular to a refrigeration appliance and a heat insulation door thereof.

Background

The door of the conventional refrigerator is generally formed by foaming, and a user cannot see the inside of the refrigerator from the outside. A refrigeration appliance using an insulating glass module offers the possibility of a user viewing the interior of the refrigerated space without having to open the door. However, if the thermal insulation effect of the refrigerator door with the insulating glass module is not ideal, condensation is likely to occur on the door.

Disclosure of Invention

It is an object of an aspect of the present invention to provide an improved insulated door for a refrigeration appliance to address at least one of the above-mentioned technical problems.

In order to solve the problems, the invention provides an insulated door for a refrigeration appliance, which comprises an insulated glass module and a door frame, wherein the door frame circumferentially surrounds the edge of the insulated glass module and comprises a plurality of insulated cavities distributed along the circumferential direction; at least one pair of circumferentially adjacent insulating cavities are isolated from each other.

Compared with the prior art, the technical scheme of the invention has the following advantages: at least one pair of heat insulation cavities adjacent in the circumferential direction in the door frame are mutually isolated to block the air in the door frame from flowing along the circumferential direction, so that the leakage of cold air is reduced, and the heat insulation effect of the heat insulation door is improved.

It should be understood that the insulating glass module includes at least two spaced apart sheets of glass and an insulating space is formed between adjacent sheets of glass. The insulating glass module may include a vacuum insulating module and/or a hollow insulating glass module.

Optionally, the door frame has a plurality of frame strips that are located respectively at each edge of the insulating glass module, and each frame strip is provided with at least one insulating cavity extending along the length direction of the edge.

Optionally, the heat insulation cavities in adjacent side frame strips are isolated at the connecting corners of the adjacent side frame strips. The spacers for separating adjacent insulating cavities can thus be arranged in the outer part of the frame strip, so that the structure of the frame strip is simplified.

In some embodiments, the door frame further comprises a connecting member for connecting adjacent ones of the side frame strips, the connecting member comprising a pair of connecting portions respectively inserted into the insulating cavities of adjacent ones of the side frame strips; the heat insulation cavity between the adjacent side frame strips is isolated by the connecting piece.

Optionally, the connecting member is in interference fit with the heat insulation cavity of the side frame strip, so as to prevent the connecting member from shaking in the heat insulation cavity.

Optionally, at least one heat insulation cavity extending from the first end to the second end of the connecting piece is arranged in the connecting piece, and a partition piece is arranged in the heat insulation cavity so as to divide the heat insulation cavity into at least two mutually isolated cavities in the direction from the first end to the second end.

Preferably, the connecting piece is an injection-molded piece, so that the spacer can be formed relatively easily.

In other embodiments, the heat insulation frame strip further comprises at least two spacers inserted into the frame strip, and the at least two heat insulation cavities in the frame strip are separated by the spacers along the length direction of the frame strip.

The partition in the frame strip may be a wall formed in the heat insulation cavity, or a filler filled in the heat insulation cavity.

Optionally, the frame strip includes: the side frame part is positioned on the outer side of the heat insulation glass module, and the rear frame part is positioned behind the heat insulation glass module.

Optionally, the side frame portion and the rear frame portion are respectively provided with the heat insulation cavity, and the thickness of the heat insulation cavity of the side frame portion is larger than that of the heat insulation cavity of the rear frame portion along the front-back direction of the door.

Optionally, the insulating glass module is a multilayer structure, and the multilayer structure comprises a glass layer or a plastic layer.

Optionally, the insulating glass module comprises a vacuum-pumping insulating layer and/or an inert gas-filled insulating layer, and the insulating layer is located between two adjacent layers of the multilayer structure.

Optionally, in the multilayer structure, a sealing portion is provided between at least one pair of adjacent two layers at an edge, so as to form a sealed heat insulation layer in a space between the adjacent two layers.

Optionally, a door sealing strip is arranged behind the rear frame portion, and the door sealing strip is located on the inner side of the sealing portion. Therefore, the door sealing strip and the sealing part are staggered in the front-back direction of the door, so that cold air can be prevented from directly leaking through the door sealing strip and the sealing part in the front-back direction, and the problem of condensation of the door body on the front side surface is solved.

Optionally, the rear frame portion is further provided with an independent closed heat insulation cavity on the inner side of the sealing portion. The heat insulation cavity is used for separating cold air between the sealing part and the refrigerating space of the refrigerating appliance and preventing the cold air from leaking from the door sealing strip.

Wherein, thermal-insulated chamber can be located the inboard of door sealing strip, in order to the separation air conditioning between door sealing strip and refrigeration space, perhaps lie in along the fore-and-aft direction the door sealing strip with between the insulating glass module, in order to the separation air conditioning between refrigeration space and insulating glass module.

Alternatively, projections of the respective sealing portions in the front-rear direction of the door overlap each other.

It is an object of another aspect of the present invention to provide an improved refrigeration appliance including an insulated door as claimed in any one of the preceding claims.

Drawings

Fig. 1 is an overall structural schematic diagram of a refrigeration appliance of an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of an insulated door according to an embodiment of the present invention;

FIG. 3 is an exploded view of an insulated door according to an embodiment of the present invention;

FIG. 4 is a schematic partial cross-sectional view of an insulated door according to an embodiment of the present invention;

FIG. 5 is a schematic perspective view of a connector in an insulated door according to an embodiment of the present invention;

fig. 6 is a sectional view schematically showing the structure of the coupling member in the insulated door according to the embodiment of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Referring to fig. 1, the present embodiment provides a refrigeration appliance R and an insulated door D thereof, such as but not limited to a refrigerator, which may be any refrigeration appliance having an insulated door.

As shown in fig. 2 to 4, the heat insulation door D includes a door main body 10 and a bezel 20 surrounding the door main body 10. Referring to fig. 3, the door main body 10 includes an insulating glass module 11, and the door frame 20 circumferentially surrounds the edge of the insulating glass module 10. The door frame 20 has a ring shape surrounding the door body 10, and the insulating glass module 11 is disposed in a ring-shaped region formed by the door frame 20.

The door frame 20 includes a plurality of circumferentially distributed insulating cavities, and at least one pair of circumferentially adjacent insulating cavities are isolated from each other, i.e., not in communication with each other.

The advantage of this scheme lies in, at least a pair of in the door frame 20 is at least to keep apart each other between the adjacent thermal-insulated cavity in circumference to obstruct the air in the door frame 20 along the flow of circumference, thereby reduce revealing of air conditioning, improve insulated door's thermal-insulated effect.

As shown in fig. 3 in combination with fig. 5 and 6, the door frame 20 includes a plurality of side frames 201 respectively disposed at each edge of the insulating glass module 11, and a connecting member 202 for connecting adjacent side frames 201, wherein the connecting member 202 includes a pair of connecting portions P respectively inserted into the adjacent side frames 201.

The heat insulation cavity may be located in the side frame strip 201 or in the connecting member 202. In this embodiment, the frame strips 201 and the connecting members 202 are provided with heat insulating cavities therein.

As shown in fig. 4, each of the frame strips 201 has at least one insulating cavity extending along the length of the edge, which is designated as a first insulating cavity V1.

The connecting member 202 has a first end a and a second end B inserted into the corresponding side frame strips 201, and at least one insulating cavity defined as a second insulating cavity V2 is formed in the connecting member 202 and extends from the first end a to the second end B. Referring to FIG. 5, the second insulating cavity V2 has two cavities, each of which is disposed in a direction parallel to the insulating glass unit 11.

Attention is paid to: in the present application, unless otherwise specified, "front-rear direction" refers to the front-rear direction of the door, that is, the thickness direction of the door. The "front" is a direction toward the front of the door, and the "rear" is a direction toward the rear of the door. "inner side" refers to a side close to the center of the door main body in the plane of the door main body, i.e., a side away from the edge of the door.

In order to realize the circumferential isolation of the heat insulation cavity in the door frame 20, a plurality of heat insulation cavities V1 in the side frame strip 201 may be provided to form the circumferential isolation, and at this time, the first heat insulation cavity V1 may be isolated by a spacer inserted into the side frame strip 201, and the spacer may be a filler or a wall formed in the side frame strip 201. Alternatively, each of the second insulating cavities V2 in the connecting member 202 may be divided to divide each of the second insulating cavities V2 into a plurality of circumferentially separated chambers.

In this embodiment, the heat insulation cavity between the adjacent frame strips 201 is isolated by the connecting member 202. Specifically, the connecting member 202 is inserted into the first insulating cavity V1 of the corresponding bezel 201 through the connecting portion P. As shown in FIG. 6, at least one partition wall 202c is provided in each of the second insulating cavities V2 to partition the corresponding second insulating cavity V2 into two or more. Thus, the insulating cavity within the connector 202 does not communicate from the first end A to the second end B.

When the connecting member 202 is inserted into the first insulating cavity V1 of the bezel 201, there is no gap between the outer wall of the connecting member 202 and the wall of the first insulating cavity V1, or the gap between the two is filled. For example, the two are shaped to match each other and are interference fit. Thus, the first insulating cavities V1 of the circumferentially adjacent frame strips 201 are not in communication with each other, and air exchange cannot occur therebetween.

This arrangement is advantageous in that the frame strip 201 is typically an extruded piece, the cross-sectional shape of which is not easily changed. The connecting piece 202 is generally an injection molding piece, the cross section shapes of all positions can be set according to needs, and the molding difficulty is low.

In other embodiments, the connecting member 202 may be provided as a solid member, or the first end A and/or the second end B of the connecting member 202 may be closed to isolate the first insulating cavity in the adjacent side frame strip at the connecting corners.

With continued reference to fig. 4, the door frame 20 may be divided into a side frame portion 21 and a rear frame portion 22, wherein the side frame portion 21 is located outside the outer peripheral surface of the insulating glass module 11, and the rear frame portion 22 is located behind the insulating glass module 11 in the door front-rear direction X. The first insulating cavity V1 is located in both the side frame 21 and the rear frame 22. The thickness of the first insulating cavity V1 in the front-rear direction X in the side frame portion 21 is adapted to the thickness of the side frame portion 21, and the thickness in the rear frame portion 22 is adapted to the thickness of the rear frame portion 22.

As shown in fig. 4, in the present embodiment, the rear surface of the side frame portion 21 is substantially parallel to the rear surface of the rear frame portion 22, and therefore, the thickness of the first insulating cavity V1 in the rear-rear direction X of the door in the side frame portion 21 may be set to be greater than the thickness of the rear portion in the rear frame portion 22.

The insulating glass module 11 may be a multilayer structure, for example, comprising two or more glass sheets. The door body 10 may include other layer structures stacked on the insulating glass module 11 in addition to the insulating glass module 11, for example, a front protective sheet 12 (see fig. 4) disposed in front of the insulating glass module 11 is further provided in the door body 10, or a rear protective sheet (not shown) disposed behind the insulating glass module 11 is further provided. In the door main body 10 of the multi-layered structure, at least one pair of adjacent two-layered structures having a space therebetween are provided at edges with sealing portions (as indicated by reference numerals S1, S2 in fig. 4) respectively for forming an insulation layer between the adjacent two-layered structures. The individual thermal barriers can be evacuated or filled with an inert gas. Preferably, projections of the respective seal portions S1, S2 in the front-rear direction X overlap each other.

The rear frame portion 22 is also provided with a door weather strip 30 located inside the seal portions S1, S2. Accordingly, the door weather strip 30 is positioned inside the respective sealing portions S1, S2, and the door weather strip 30 and the sealing portions S1, S2 are displaced in the front-rear direction X of the door, whereby the cold air can be prevented from leaking directly in the front-rear direction X through the door weather strip 30 and the sealing portions, and the problem of condensation on the front surface of the door body can be improved.

The rear frame portion 22 is also provided with an independently closed heat insulating chamber V3 inside the sealing portions S1 and S2. The heat insulation chamber V3 is used to block cold air between the sealing portions S1, S2 and the refrigerating space of the refrigerator, preventing the cold air from leaking from the door weather strip 30.

The number of the heat insulation cavities V3 may be one or more, and any one of the heat insulation cavities V3 may be located between the door weather strip 30 and the heat insulation glass module 11 or inside the door weather strip 30 along the front-back direction X, so as to block cold air between the door weather strip 30 and the refrigerating space.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An insulated door (D) for a refrigeration appliance (R), comprising an insulating glass module (11), and a door frame (20) circumferentially surrounding the edges of the insulating glass module (11), the door frame (20) comprising a plurality of insulating cavities (V1, V2) distributed along the circumferential direction;

the glass door frame is characterized in that at least one pair of circumferentially adjacent heat insulation cavities (V1, V2) are isolated from each other, the door frame (20) is provided with a plurality of side frame strips (201) which are respectively positioned at each edge of the heat insulation glass module (11), the heat insulation cavities (V1) in the adjacent side frame strips (201) are isolated at the connecting corners of the adjacent side frame strips (201), the door frame (20) further comprises connecting pieces (202) used for connecting the adjacent side frame strips (201), and the connecting pieces (202) comprise a pair of connecting parts (P) which are respectively inserted into the heat insulation cavities (V1) of the adjacent side frame strips (201);

the heat insulation cavities (V1) between the adjacent side frame strips (201) are separated by the connecting pieces (202).

2. An insulated door (D) according to claim 1, characterized in that each frame strip (201) is provided with at least one insulating cavity (V1) extending in the direction of the length of the edge.

3. An insulated door (D) according to claim 1, characterized in that the connecting element (202) is in interference fit with the insulating cavity (V1) of the frame strip (201) in which it is located.

4. An insulated door (D) according to claim 1, characterized in that in the connecting element (202) there is at least one insulating cavity (V2) extending from the first end (a) to the second end (B) of the connecting element (202), and in that in the insulating cavity (V2) there is a partition (202c) to divide the insulating cavity (V2) in the direction from the first end (a) to the second end (B) into at least two mutually separated chambers.

5. An insulated door (D) according to claim 1, characterized in that the connecting piece (202) is an injection-moulded piece.

6. The insulated door (D) according to claim 2, further comprising a partition inserted into the jamb strip (201), wherein the insulating cavity (V1) in the jamb strip (201) is partitioned into at least two chambers by the partition along the length of the jamb strip (201).

7. The insulated door (D) according to claim 6, characterized in that said insulation is a filler filled in said insulated cavity (V1).

8. An insulated door (D) according to claim 2, characterized in that the frame strips (201) comprise: the side frame part (21) is positioned on the outer side of the heat insulation glass module (11), and the rear frame part (22) is positioned behind the heat insulation glass module (11).

9. The insulated door (D) according to claim 8, characterized in that the side frame (21) and the rear frame (22) are provided with the insulating cavity (V1), respectively, and the thickness of the insulating cavity (V1) of the side frame (21) is greater than the thickness of the insulating cavity (V1) of the rear frame (22) in the front-rear direction of the door.

10. The insulated door (D) according to claim 8, characterized in that the insulating glass module (11) is a multilayer structure comprising glass or plastic layers.

11. The insulated door (D) according to claim 10, characterized in that the insulating glass module (11) comprises an evacuated insulating layer and/or an insulating layer filled with inert gas, said insulating layer being located between two adjacent layers of the multilayer structure.

12. The insulated door (D) according to claim 10, characterized in that at least one pair of adjacent two layers of the multilayer structure is provided with a seal (S1, S2) at the edge.

13. The insulated door (D) according to claim 12, characterized in that a door weather strip (30) is provided behind the rear frame portion (22), the door weather strip (30) being located inside the sealing portion (S1, S2).

14. The insulated door (D) according to claim 13, characterized in that the rear frame portion (22) is also provided with a separate closed insulated chamber (V3) inside the sealing portion (S1, S2).

15. The insulated door (D) according to claim 14, characterized in that the insulating chamber (V3) is located inside the door weather strip (30).

16. The insulated door (D) of claim 14, wherein the insulating chamber (V3) is located between the door weather strip (30) and the insulating glass module (11) in the fore-aft direction.

17. The heat-insulated door (D) according to claim 12, characterized in that the projections of the respective sealing portions (S1, S2) in the front-rear direction of the door overlap each other.

18. A refrigeration appliance (R), characterized in that it comprises an insulated door according to any one of claims 1 to 17.