CN113123708A

CN113123708A - Anti-condensation glass door and refrigerating device

Info

Publication number: CN113123708A
Application number: CN201911409519.4A
Authority: CN
Inventors: 刘凯鹏; 丁东锋; 杨宝斌; 王志恒
Original assignee: Qingdao Haier Special Refrigerator Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Special Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2021-07-16
Also published as: WO2021135146A1

Abstract

The invention provides an anti-condensation glass door and a refrigerating device, wherein the glass door comprises an outer glass door body, an inner glass door body, a connecting part and heating wires, wherein the inner glass door body is away from the outer glass door body by a preset distance, the connecting part is arranged along the edge of the inner glass door body and is used for connecting the outer glass door body and the inner glass door body into a whole, the heating wires are arranged on the inner surface of the outer glass door body, are wound along the periphery of the connecting part and are used for heating the outer glass door body, and the heating wires are folded at the bottom of the connecting part to be arranged back and forth to form a plurality of heating wire rows. The glass door adopts double-layer hollow glass, and the anti-condensation effect of the glass door is effectively improved and the cost is lower than that of the mode of integrally replacing the outer glass with the heating film-coated glass by integrally winding the heating wires and folding and arranging a plurality of rows of heating wires at the bottom of the glass door.

Description

Anti-condensation glass door and refrigerating device

Technical Field

The invention relates to the technical field of household appliances, in particular to an anti-condensation glass door and a refrigerating device with the glass door.

Background

Along with the improvement of living standard of people, the functional requirements of users on the refrigerating device are higher and higher. In order to facilitate observation of articles inside the refrigeration device, transparent double-layer hollow glass is increasingly adopted for a door body of the refrigeration device. Glass doors, while convenient for a user to view objects inside the refrigeration unit, introduce new problems. Because the foaming heat-insulating layer can not be arranged between the transparent double-layer glass like the interior of the door body of the traditional refrigerating device, the heat-insulating effect is poor, and the condensation phenomenon is easily generated on the outer glass of the glass door body.

At present, the prior art has two kinds to the anti-condensation mode of the glass door body: firstly, filling argon between two layers of glass; and the second is that the outer glass is the heating film plated glass. Although the price of the first mode is low, the heat preservation effect is poor, and the improvement is limited; the second method has a good anti-exposure effect, but is expensive and has poor light transmittance, and cannot print complicated patterns.

Therefore, in order to solve the technical problems of the glass door in the prior art, it is urgently needed to provide a condensation-proof glass door and a refrigerating device which are low in cost and good in condensation-proof effect.

Disclosure of Invention

Aiming at the coordination problem between the anti-condensation effect and the cost control of the glass door in the prior art, the embodiment of the invention provides the glass door with low cost and good anti-condensation effect and the refrigerating device applying the glass door.

The specific technical scheme of the anti-condensation glass door provided by the embodiment of the invention is as follows: a condensation-proof glass door comprises an outer glass door body; the inner glass door body and the outer glass door body are spaced at a preset distance to form a cavity; the area of the inner glass door body is smaller than that of the outer glass door body; the connecting part is arranged along the edge of the inner glass door body and is used for connecting the outer glass door body and the inner glass door body into a whole; the heating wire is arranged on the inner surface of the outer glass door body, is wound along the periphery of the connecting part and is used for heating the outer glass door body; wherein, the heating wires are folded and arranged back and forth at the bottom of the connecting part to form a plurality of heating wire rows.

Preferably, a center distance between two adjacent heating wire columns in the plurality of heating wire columns is greater than or equal to 8 mm.

Preferably, the plurality of heating wire rows are fixed to the outer glass door body by an aluminum foil tape.

Preferably, the connection comprises a cured silicone adhesive.

Preferably, the cavity is filled with an inert gas.

Preferably, the glass door further comprises a middle glass, and the middle glass is located in the cavity and is equal to the outer glass door body in distance and the inner glass door body in distance.

Preferably, the glass door further comprises a molecular sieve disposed within the cavity and abutting the connecting portion.

Preferably, the molecular sieve strips are fixed at the preset positions by butyl rubber.

Preferably, the inner glass door body is coated glass.

The embodiment of the invention also provides a refrigerating device which comprises a box body and the anti-condensation glass door.

According to the technical scheme, the embodiment of the invention has the following advantages:

the anti-condensation glass door provided by the embodiment of the invention adopts double-layer hollow glass, and the anti-condensation effect of the glass door is effectively improved and the cost is lower than that of a mode of integrally replacing outer glass with heating film-coated glass by integrally winding heating wires and folding and arranging a plurality of rows of heating wires at the bottom of the glass door. The cavity of the double-layer hollow glass of the anti-condensation glass door provided by the embodiment of the invention is also internally provided with the molecular sieve, so that the molecular sieve can absorb water in the hollow glass, prolong the service life of the glass, play a certain anti-condensation role and further improve the anti-condensation effect of the glass door.

Drawings

FIG. 1 is a front view of a condensation resistant glass door provided in accordance with an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line B-B of the embodiment of FIG. 1;

FIG. 3 is a cross-sectional view taken along line C-C of the embodiment of FIG. 1;

FIG. 4 is an enlarged view of the region I in the embodiment of FIG. 1.

The description is marked in the drawings:

100. glass door 10, outer glass door body 20 and inner glass door body

30. Heating wire 31, first row of heating wires 33 and second row of heating wires

35. Third row of heating wires 40, middle glass 50, and connecting part

60. Molecular sieve 80, cavity D, cavity spacing

d1, the first distance d2 and the second distance

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

As shown in fig. 1 to 4, a schematic view of a glass door for preventing condensation according to an embodiment of the present invention is provided. The utility model provides a prevent glass door 100 of condensation includes the outer glass door body 10, and the inner glass door body 20 sets up and is used for the outer glass door body 10 and the inner glass door body 20 connecting portion 50 that links into an integrated entity along the edge setting of the inner glass door body 20, sets up in the internal surface of the outer glass door body 10 and along the peripheral winding of connecting portion 50 and be used for carrying out the heater strip 30 that heats to the outer glass door body 10.

With continued reference to fig. 1-3, in this embodiment, the inner glass door body 20 is spaced from the outer glass door body 10 by a predetermined distance to form a cavity 80. The cavity 80 comprises a single cavity and a double cavity (two independent cavities), namely a single cavity formed by two layers of glass door bodies and a double cavity formed by three layers of glass door bodies, the cavity distance of the cavity 80 is D, the thickness of each layer of glass door is approximately 3mm-4mm, and if the cavity is a single cavity, the distance D is preferably between 8mm and 30 mm; if the glass door is a double-cavity glass door, the total distance D between the double cavities is preferably 10mm-55mm, so that the requirement of heat preservation can be met, and the requirement of the whole thickness of the glass door can be met. Preferably, the cavity 80 is filled with an inert gas, such as argon, helium, krypton, or the like, although the cavity 80 may also be filled with air. The inert gas can effectively reduce the pressure difference between the inside and the outside of the glass door body 10, keep the pressure balance and prolong the service life of the glass door body 10; further, the inert gas can effectively reduce the heat transfer coefficient, improve the heat preservation performance and further increase the condensation prevention effect of the glass door body 10. In this embodiment, the area of the inner sheet glass door body 20 is smaller than the area of the outer sheet glass door body 10. Preferably, the inner glass door body 20 is coated glass, so as to effectively avoid the central condensation phenomenon of the glass door.

With continued reference to fig. 2 to 4, in this embodiment, the heating wire 30 is disposed on the inner surface of the outer sheet glass door body 10 and wound along the periphery of the joining portion 50. Here, the surface of the outer sheet glass door body 10 on the side closer to the inner sheet glass door body 20 is defined as an inner surface. The heating wire 30 is tightly attached to the inner surface of the outer glass door 10. After the heating wire 30 is conducted and heated, the outer glass door body 10 is heated, so that the condensation phenomenon of the peripheral frame of the glass door 100 is effectively avoided. Further, the heater wires 30 are folded and arranged back and forth at the bottom position of the connection part 50 to form a plurality of heater wire rows. The plurality of heater wire rows are fixed on the inner surface of the outer glass door body 10 using an aluminum foil tape having a good heat conductive capability. The center distance between two adjacent heating wire columns in the plurality of heating wire columns is larger than or equal to 8mm, so that potential safety hazards caused by the fact that the heating wire columns are too close to each other are avoided. The number of the heating wire rows can be set in various ways according to requirements, such as 3 rows, 4 rows or more than or equal to 5 rows.

In this embodiment, the heating wire 30 is folded back and forth twice at the bottom position of the connection portion 50, thereby forming three heating wire rows: a first column of heating wires 31, a second column of heating wires 33, and a third column of heating wires 35. The center distance between the first column of heating wires 31 and the second column of heating wires 33 is a first distance d1, and the center distance between the second column of heating wires 33 and the third column of heating wires 35 is a second distance d 2. The first spacing d1 and the second spacing d2 are each greater than or equal to 8 millimeters. The first spacing d1 and the second spacing d2 may or may not be equal.

The heating wires are arranged at the bottom of the glass door body, so that the heating efficiency and the heating area of the glass door body at the bottom are increased, and the problem that the glass door body is easy to condense due to uneven bottom temperature is effectively solved. Furthermore, in the embodiment of the invention, the multiple rows of heating wires at the bottom are formed by adopting a mode that one heating wire is folded to reciprocate, a plurality of heating wires are not required to be arranged, and the same heating frequency of the door frame and the bottom is effectively unified.

In this embodiment, the connection 50 is a cured silicone adhesive. Silicone gels are ointment-like materials that cure upon exposure to atmospheric moisture to form a tough, rubber-like solid, commonly used for bonding and sealing in glass applications.

The glass door 100 also includes a molecular sieve 60. Molecular sieve 60 is disposed within cavity 80 and abuts connection 50. As shown in fig. 2, the molecular sieve 60 is like a bar and has four sides, one side being adjacent to the outer glass door body 10, the opposite side being adjacent to the inner glass door body 20, and the adjacent side being adjacent to the connecting portion 50. In this example, the molecular sieve 60 is fixed at the above position using butyl rubber. The molecular sieve 60 arranged in the glass door 100 can absorb moisture in the hollow glass, prolong the service life of the glass, play a certain anti-frosting role and further improve the anti-condensation effect of the glass door.

With continued reference to fig. 2-3, the glass door 100 preferably further includes a middle pane 40. The middle glass 40 is positioned in the cavity 80 and between the outer glass door body 10 and the inner glass door body 20. Preferably, the distance between the middle glass 40 and the outer glass door 10 is equal to the distance between the middle glass 40 and the inner glass door 20, but may be unequal. In this embodiment, the area of the middle sheet of glass 40 is substantially equal to the area of the inner sheet of glass door body 20, or the area of the middle sheet of glass 40 is slightly smaller than the area of the inner sheet of glass door body 20, and the edge of the middle sheet of glass 40 is embedded in the connecting portion 50. Preferably, the middle glass 40 is also a coated glass, so as to effectively avoid the central condensation phenomenon of the glass door.

The embodiment of the invention also provides a refrigerating device. The refrigerating device comprises a box body and the anti-condensation glass door, and can be a refrigerator, a freezer, a wine cabinet and a refrigerating device with the glass door.

The anti-condensation glass door provided by the embodiment of the invention adopts double-layer hollow glass, and the anti-condensation effect of the glass door is effectively improved and the cost is lower than that of a mode of integrally replacing outer glass with heating film-coated glass by integrally winding heating wires and folding and arranging a plurality of rows of heating wires at the bottom of the glass door.

The cavity of the double-layer hollow glass of the anti-condensation glass door provided by the embodiment of the invention is also internally provided with the molecular sieve, so that the molecular sieve can absorb water in the hollow glass, prolong the service life of the glass, play a certain anti-condensation role and further improve the anti-condensation effect of the glass door.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A condensation-resistant glass door, comprising:

an outer glass door body;

the inner glass door body and the outer glass door body are spaced at a preset distance to form a cavity; the area of the inner glass door body is smaller than that of the outer glass door body;

the connecting part is arranged along the edge of the inner glass door body and is used for connecting the outer glass door body and the inner glass door body into a whole;

the heating wire is arranged on the inner surface of the outer glass door body, is wound along the periphery of the connecting part and is used for heating the outer glass door body; wherein, the heating wires are folded and arranged back and forth at the bottom of the connecting part to form a plurality of heating wire rows.

2. The anti-condensation glass door as claimed in claim 1, wherein a center distance between two adjacent heater wire columns of the plurality of heater wire columns is equal to or greater than 8 mm.

3. The anti-condensation glass door as claimed in claim 1, wherein the plurality of heating wire rows are fixed to the outer glass door body by aluminum foil tape.

4. The condensation resistant glass door of claim 1, wherein the connection comprises a cured silicone adhesive.

5. The anti-condensation glass door according to claim 1, wherein the cavity is filled with an inert gas.

6. The anti-condensation glass door according to claim 1, further comprising a middle glass, wherein the middle glass is positioned in the cavity and has the same distance with the outer glass door body as the inner glass door body.

7. The condensation resistant glass door of claim 1, further comprising a molecular sieve disposed within the cavity and abutting the connecting portion.

8. The anti-condensation glass door according to claim 7, wherein the molecular sieve strip is fixed at a predetermined position using butyl rubber.

9. The anti-condensation glass door according to claim 1, wherein the inner sheet glass door body is coated glass.

10. A refrigeration appliance comprising a cabinet and an anti-condensation glass door as claimed in any one of claims 1 to 9.