WO2022057684A1

WO2022057684A1 - Refrigerator and door body thereof

Info

Publication number: WO2022057684A1
Application number: PCT/CN2021/116935
Authority: WO
Inventors: 吕鹏; 张�浩; 李佳明; 崔展鹏; 牟森
Original assignee: 青岛海尔电冰箱有限公司; 海尔智家股份有限公司
Priority date: 2020-09-15
Filing date: 2021-09-07
Publication date: 2022-03-24
Also published as: EP4206585A1; CN114183968A; US20230366612A1; EP4206585A4

Abstract

A refrigerator and a door body thereof. The door body for the refrigerator comprises: a frame hingedly connected to a refrigerator body or other door bodies the refrigerator; an inner glass plate disposed in a hollow area of the frame; and an outer glass plate fixedly connected to the edge of the frame, having conductive particles, and configured to produce heat after being powered on to eliminate condensation on the surface thereof. According to the solution of the present invention, the outer glass plate is powered on to produce heat so as to eliminate condensation, thereby avoiding that the heat produced by an additional heating layer cannot be transferred to the outer glass plate. The present invention can effectively improve the condensation removal effect.

Description

Refrigerator and its door

technical field

The invention relates to the technical field of refrigeration and freezing, in particular to a refrigerator and a door body thereof.

Background technique

With the continuous development of society and the continuous improvement of people's living standards, people's life rhythm is getting faster and faster, so they are more and more willing to buy a lot of food and put them in the refrigerator. The refrigerator has become one of the indispensable household appliances in people's daily life. .

In order to facilitate viewing of the items stored in the refrigerator, more and more refrigerator products are provided with a transparent area on the door body. At present, the transparent area of the refrigerator door body is generally two-layer glass or three-layer glass, and two-layer glass is generally used for wine cabinets with low temperature requirements, without electric heating, and there is no condensation phenomenon. Three-layer glass is generally used for the refrigerating door body of refrigerators. From outside to inside, the first layer is often a decorative layer, the second layer is a heating layer, and the third layer is an insulating layer. However, the heating layer is in the middle layer. Condensation appears on the surface of the layer, and the heat of the second layer is difficult to transfer to the first layer, and it is difficult to remove the condensation, which affects the user experience.

SUMMARY OF THE INVENTION

One object of the present invention is to improve the dew condensation effect of the refrigerator door.

A further object of the present invention is that the glass and the heating wire cooperate with each other to achieve low energy consumption for dew condensation.

In particular, the present invention provides a door body for a refrigerator, comprising: a frame body, which is used to be hinged to a box body or other door bodies of the refrigerator; an inner glass plate body, which is arranged in a hollow area of the frame body; The glass plate body is fixedly connected to the edge of the frame body, and has conductive particles, which are configured to generate heat after being electrified to eliminate condensation on its surface.

Optionally, the door body used for the refrigerator further includes: a lead layer, coated on the inner side of the outer glass plate body, configured to lead wires so that the outer glass plate body can be energized.

Optionally, the door body used for the refrigerator further includes: a decorative layer disposed between the outer glass plate body and the frame body, and the hollow area of the decorative layer is disposed correspondingly to the hollow area of the frame body.

Optionally, the pattern of the lead layer and the decoration layer are matched and arranged to realize integration with the decoration layer.

Optionally, the lead layer is located on the inner edge of the outer glass plate body, and the edge of the outer glass plate body is covered with edges to shield the lead layer.

Optionally, a foam layer is disposed between the frame body and the outer glass plate body, and heating wires are pre-embedded in the foam layer, configured to generate heat in a controlled manner to eliminate condensation on the surface of the outer glass plate body.

Optionally, when the humidity value in the storage space of the refrigerator is greater than the preset humidity threshold value, the outer glass plate body and the heating wire generate heat at the same time.

Optionally, the door body used for the refrigerator further includes: a spacer bar disposed between the inner glass plate body and the outer glass plate body to insulate heat.

Optionally, a gas with a thermal conductivity smaller than a preset coefficient threshold is filled between the inner glass plate body and the outer glass plate body.

According to another aspect of the present invention, there is also provided a refrigerator including the door body as in any of the above.

The door body for a refrigerator of the present invention includes: a frame body, which is used to be hinged to a box body or other door bodies of the refrigerator; an inner glass plate body, which is arranged in the hollow area of the frame body; and an outer glass plate body, which is connected to the frame body. The edge of the body is fixedly connected, and it has conductive particles, which are configured to generate heat after electrification to eliminate condensation on its surface. The condensation can be eliminated by electrifying the outer glass body itself to generate heat, avoiding the heat generated by the additional heating layer. It cannot be transmitted to the outer glass body, which can effectively improve the dew condensation effect.

Further, the door body for a refrigerator of the present invention further comprises: a lead layer, coated on the inner side of the outer glass plate, configured to lead wires to make the outer glass plate energized; a decorative layer, disposed on the outer glass plate between the body and the frame body, and the hollow area of the decoration layer is arranged correspondingly to the hollow area of the frame body; the patterns of the lead layer and the decoration layer are matched and arranged to realize integration with the decoration layer. Alternatively, the lead layer is located at the inner edge of the outer glass body, and the edge of the outer glass body is covered with edges to shield the lead layer. Through the above two methods, the lead layer can be avoided to be seen directly through the outer glass body, and the aesthetics can be ensured while ensuring that the lead layer leads the wires so that the outer glass body can be energized.

Further, in the door body for refrigerators of the present invention, a foam layer is arranged between the frame body and the outer glass plate body, and heating wires are pre-embedded in the foam layer, which is configured to generate heat in a controlled manner to eliminate external heat. Condensation on the surface of the glass plate. When the humidity value in the storage space of the refrigerator is greater than the preset humidity threshold, the outer glass plate body and the heating wire generate heat at the same time. The outer glass body and the heating wire can cooperate with each other to achieve low energy consumption to remove condensation, ensure the visibility of the transparent area of the door body, and improve the user experience.

The above and other objects, advantages and features of the present invention will be more apparent to those skilled in the art from the following detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of example and not limitation with reference to the accompanying drawings. The same reference numbers in the figures designate the same or similar parts or parts. Those skilled in the art will understand that the drawings are not necessarily to scale. In the attached picture:

1 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention;

2 is a schematic structural diagram of a door body for a refrigerator according to an embodiment of the present invention;

Fig. 3 is the longitudinal sectional view of the door body in Fig. 2; And

FIG. 4 is an exploded schematic view of the door body in FIG. 2 .

detailed description

The refrigerator and the door thereof according to the embodiment of the present invention will be described below with reference to FIGS. 1 to 4 . Among them, the orientation or positional relationship indicated by "front", "rear", "upper", "lower", "top", "bottom", "inside", "outside", "horizontal", "longitudinal", etc. is based on The orientation or positional relationship shown in the drawings is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as Limitations of the present invention.

An embodiment of the present invention provides a refrigerator, the door of which has a transparent area, so as to facilitate viewing of items stored in the refrigerator. FIG. 1 is a schematic structural diagram of a refrigerator 100 according to an embodiment of the present invention. As shown in FIG. 1 , the refrigerator 100 of this embodiment may generally include: a box body 110 and a door body 120 .

Wherein, the interior of the box body 110 may define a storage space, and the storage space is provided with a plurality of storage areas. The number and structure of the storage spaces can be configured according to the needs. Figure 1 shows the situation where four storage spaces are arranged up and down in sequence; the above spaces can be configured as refrigerated spaces, freezer spaces, temperature-changing spaces or fresh-keeping spaces according to different purposes. Each storage space can be divided into a plurality of storage areas by a partition board, and use a shelf or drawer to store items. In a specific embodiment, the uppermost storage space of the refrigerator 100 in this embodiment may be a refrigerating space.

The door body 120 may be disposed on the front surface of the box body 110 to close the storage space. The door bodies 120 may be arranged corresponding to the storage spaces, that is, each storage space corresponds to one or more door bodies 120 . The storage space, the number of the door body 120, and the function of the storage space can be actually selected according to specific conditions. The door body 120 can be pivotally arranged on the front surface of the box body 110. In some refrigerators 100 provided with a double door body, the door body 120 with a transparent area can also be used as a sub-door of the door-in-door, that is, it is arranged on other refrigerators 100. front of the door.

In addition, the refrigerator 100 may further include a refrigeration system configured to provide cooling capacity to the storage space. Moreover, the refrigeration system may be a compression refrigeration system, including components such as an evaporator, a fan, and a compressor. The refrigeration system provides different amounts of cooling to the refrigerated space and the freezer space, resulting in different temperatures in the refrigerated space and the freezer space. The temperature in the refrigerated space is generally between 2°C and 10°C, preferably between 3°C and 8°C. The temperature range in the freezing space is generally -22°C to -14°C. The optimal storage temperature for different types of food is different, and the storage space suitable for storage is also different. For example, fruit and vegetable foods are suitable for storage in a refrigerated space, while meat foods are suitable for storage in a freezer space. The door body 120 with the transparent area can be applied to a refrigerated space.

After the door body 120 is opened and closed, due to a certain temperature difference between the interior of the storage space and the external environment, the exchange of cold and heat between the interior of the storage space and the external environment increases, and the risk of condensation on the surface of the door body 120 increases. The door body 120 for the refrigerator in this embodiment can effectively improve the dew condensation effect. 2 is a schematic structural diagram of a door body 120 for a refrigerator according to an embodiment of the present invention, FIG. 3 is a longitudinal cross-sectional view of the door body 120 in FIG. 2 , and FIG. 4 is an exploded schematic view of the door body 120 in FIG. 2 . As shown in FIGS. 2 to 4 , the door body 120 for a refrigerator may include a frame body 121 , an inner glass plate body 122 and an outer glass plate body 123 .

The frame body 121 is used to be hinged to the box body 110 or other door bodies of the refrigerator 100 . The inner glass plate body 122 may be disposed in the hollow area of the frame body 121 . The outer glass plate body 123 can be fixedly connected with the edge of the frame body 121, and it has conductive particles configured to generate heat to eliminate condensation on its surface after being electrified. Actually, when the door body 120 is closed, the outer glass plate body 123 is located on the side of the external environment, and the inner glass plate body 122 is located on the side of the storage space. Preferably, the inner glass body 122 may be radiation-proof glass to increase the thermal insulation effect, for example, the inner glass body 122 may be low-emissivity glass such as single-silver glass, double-silver glass, etc. The outer glass body 123 has conductive particles. Specifically, before the ordinary glass is not cured, conductive particles, such as silver ions, can be sprayed on the surface of the glass, so that after the glass is cured, the conductive particles and the glass are integrated, and the outer glass body 123 is equivalent to a resistor with a large resistance value, only the positive and negative poles need to be drawn out to the outer glass plate body 123. After electrification, the resistor heats up, that is, the outer glass plate body 123 heats up.

The hollow area of the frame body 121 actually defines the transparent area of the door body 120 , through which the user can view the items stored in the storage space, thereby realizing the visualization of the storage condition inside the refrigerator 100 . In addition, the door frame may be provided with a foaming reserved space to perform foaming treatment between the outer glass plates 123 to increase the thermal insulation effect. The inner glass plate body 122 and the outer glass plate body 123 may be filled with a gas whose thermal conductivity is less than the preset coefficient threshold, which can also improve the heat preservation effect. Specifically, argon gas may be filled between the inner glass plate body 122 and the outer glass plate body 123 .

In a preferred embodiment, the door body 120 may further include: a lead layer 124 and a decoration layer 125 . Wherein, the lead layer 124 can be coated on the inner side of the outer glass plate body 123, and is configured to lead wires so that the outer glass plate body 123 can be energized. The decorative layer 125 may be disposed between the outer glass plate body 123 and the frame body 121 , and the hollow area of the decorative layer 125 is disposed correspondingly to the hollow area of the frame body 121 . Generally, the decoration layer 125 may be an ink layer, and in order to reduce costs, a decoration process such as silk screen printing may also be used. The lead layer 124 may be a conductive layer painted on the inner side of the outer glass body 123 , for example, silver paste may be painted on the inner side of the outer glass body 123 to lead wires.

Since the lead layer 124 is visible through the outer glass body 123 , which affects the appearance, the patterns of the lead layer 124 and the decoration layer 125 can be matched to achieve integration with the decoration layer 125 . That is, the lead layer 124 is made part of the pattern of the decoration layer 125 . In another embodiment, as shown in FIG. 4 , the lead layer 124 may be located at the inner edge of the outer glass body 123 , so the edge of the outer glass body 123 may be wrapped to shield the lead layer 124 . The hemming can be set independently, or can be realized by the frame body 121 . Moreover, as shown in FIG. 4 , the lead layer 124 can be located at the inner edge of the outer glass body 123 at the upper and lower ends, so as to lead out the positive and negative electrodes at the upper and lower sides, so that the outer glass body 123 becomes a large resistance resistor.

As mentioned above, the door frame may be provided with a foaming reserved space, a foaming layer may be provided between the frame body 121 and the outer glass plate body 123, and the heating wire 126 may be pre-embedded in the foaming layer, and the configuration is as follows: Heat is controlled to eliminate condensation on the surface of the outer glass body 123 . It should be noted that, when the humidity value in the storage space of the refrigerator 100 is greater than the preset humidity threshold, the outer glass body 123 and the heating wire 126 generate heat at the same time to remove condensation. When the humidity value in the storage space of the refrigerator 100 is less than or equal to the preset humidity threshold value, one of the outer glass body 123 and the heating wire 126 can be used to generate heat to remove condensation. In addition, the selection of one of the outer glass body 123 and the heating wire 126 may be further optimized according to the actual situation of the heat generated by the outer glass plate body 123 and the heating wire 126 . Alternatively, a switch may be provided to control the heating opening and closing of the outer glass plate body 123 and the heating wire 126 respectively, and the user may choose according to requirements.

In a specific embodiment, the door body 120 may further include: a spacer bar 127 disposed between the inner glass plate body 122 and the outer glass plate body 123 to isolate heat. The spacers 127 can effectively prevent the heat generated when the outer glass plate 123 and/or the heating wire 126 are heated from being conducted to the inner glass plate 122, thereby avoiding affecting the storage temperature of the storage space and effectively ensuring the storage effect. Preferably, the spacer strip 127 may be an aluminum alloy, a warm edge strip, or other heat-insulating sealing strips.

The door body 120 for a refrigerator in this embodiment includes: a frame body 121 for being hinged to the box body 110 or other door bodies of the refrigerator 100 ; an inner glass plate body 122 , which is disposed in the hollow area of the frame body 121 ; and The outer glass plate body 123 is fixedly connected to the edge of the frame body 121, and it has conductive particles, which are configured to generate heat after being energized to eliminate condensation on its surface, and the dew condensation can be eliminated by energizing the outer glass plate body 123 itself to generate heat. , so that the heat generated by the additional heating layer cannot be conducted to the outer glass plate body 123 , which can effectively improve the dew condensation effect.

Further, the door body 120 for the refrigerator in this embodiment further includes: a lead layer 124 coated on the inner side of the outer glass plate body 123 and configured to lead wires to make the outer glass plate body 123 energized; a decorative layer 125 , is arranged between the outer glass plate body 123 and the frame body 121 , and the hollow area of the decorative layer 125 is correspondingly arranged with the hollow area of the frame body 121 ; integration. Alternatively, the lead layer 124 is located at the inner edge of the outer glass plate body 123 , and the edge of the outer glass plate body 123 has a wrapping edge to shield the lead layer 124 . The above two methods can avoid directly seeing the lead layer 124 through the outer glass body 123 , and ensure the aesthetics while ensuring that the lead layer 124 leads wires so that the outer glass body 123 can be energized.

Further, in the door body 120 used for the refrigerator in this embodiment, a foam layer is arranged between the frame body 121 and the outer glass plate body 123, and the heating wire 126 is pre-embedded in the foam layer, which is configured in a controlled manner. Heat is generated to remove condensation on the surface of the outer glass plate body 123 . When the humidity value in the storage space of the refrigerator 100 is greater than the preset humidity threshold value, the outer glass plate body 123 and the heating wire 126 generate heat at the same time. The dew condensation can be removed with low energy consumption through the cooperation of the outer glass plate body 123 and the heating wire 126, so as to ensure the visibility of the transparent area of the door body 120 and improve the user experience.

By now, those skilled in the art will recognize that, although various exemplary embodiments of the present invention have been illustrated and described in detail herein, the present invention may still be implemented in accordance with the present disclosure without departing from the spirit and scope of the present invention. The content directly determines or derives many other variations or modifications consistent with the principles of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

A door body for a refrigerator, comprising:

a frame, which is used to be hinged to a box or other door of the refrigerator;

an inner glass plate body, disposed in the hollow area of the frame body; and

The outer glass plate body is fixedly connected to the edge of the frame body, and has conductive particles configured to generate heat after being electrified to eliminate condensation on its surface.
The door body for a refrigerator according to claim 1, further comprising:

The lead layer is coated on the inner side of the outer glass plate, and is configured to lead wires to make the outer glass plate energized.
The door body for a refrigerator according to claim 2, further comprising:

The decoration layer is arranged between the outer glass plate body and the frame body, and the hollow area of the decoration layer is arranged corresponding to the hollow area of the frame body.
The door body for a refrigerator according to claim 3, wherein,

The lead layer and the pattern of the decoration layer are matched and arranged to realize integration with the decoration layer.
The door body for a refrigerator according to claim 2, wherein,

The lead layer is located on the inner edge of the outer glass body, and

The edge of the outer glass plate body has a edging to shield the lead layer.
The door body for a refrigerator according to claim 1, wherein,

A foamed layer is arranged between the frame body and the outer glass plate body, and

Heating wires are pre-embedded in the foam layer and configured to generate heat in a controlled manner to eliminate condensation on the surface of the outer glass plate.
The door body for a refrigerator according to claim 6, wherein,

When the humidity value in the storage space of the refrigerator is greater than a preset humidity threshold value, the outer glass plate body and the heating wire generate heat at the same time.
The door body for a refrigerator according to claim 1, further comprising:

A spacer is arranged between the inner glass plate body and the outer glass plate body to insulate heat.
The door body for a refrigerator according to claim 1, wherein,

A gas whose thermal conductivity is less than a preset coefficient threshold is filled between the inner glass plate body and the outer glass plate body.
A refrigerator, comprising the door body according to any one of claims 1 to 9.