CN219283754U

CN219283754U - Sealed refrigerating device shell

Info

Publication number: CN219283754U
Application number: CN202320506456.XU
Authority: CN
Inventors: 郑锡菲; 夏佳
Original assignee: Shanghai Hotel Equipment Engineering Complete Set Nanxiang Factory Co ltd
Current assignee: Shanghai Hotel Equipment Engineering Complete Set Nanxiang Factory Co ltd
Priority date: 2023-03-16
Filing date: 2023-03-16
Publication date: 2023-06-30
Anticipated expiration: 2033-03-16

Abstract

The utility model discloses a sealed refrigeration device shell, which comprises an outer shell, an inner shell arranged in the outer shell, and an insulating foam layer arranged between the outer shell and the inner shell; the outer housing and the inner housing each comprise a plurality of rectangular sheet metal components; the four right-angle parts of each metal plate component and the right-angle part of the adjacent other metal plate component are respectively provided with a connecting sealing point; each of the connection sealing points is coated with at least one two-component silicone resin layer as a sealing layer on a side facing the insulating foam layer. During manufacturing, the outer shell and the inner shell are assembled, then the bi-component silicone resin layer is coated, and after the bi-component silicone resin layer is solidified to form a corresponding sealing layer, the insulating foam material is injected to form the insulating foam layer. The utility model has simpler manufacture, more stable and reliable sealing, saves time, reduces working procedures, is easy to operate and implement, can better preserve heat and reduces necessary electric energy consumption.

Description

Sealed refrigerating device shell

Technical Field

The utility model relates to the technical field of refrigeration setting and manufacturing, in particular to a sealed refrigeration device shell.

Background

The existing sealed refrigerator outer shell, especially such as refrigerator or low temperature storage and insulation chamber, is formed by connecting metal plates by metal plate joints, an insulating layer is applied between the inner shell and the outer shell, the insulating layer can also be used as an insulating layer, and the refrigerator outer shell has the following defects in practical application:

1. the insulating layer is composed in particular of a single-or multicomponent foam or material with a low thermal conductivity, the inner and outer shells being sealed to prevent escape of the foam prior to foaming during production.

2. The inner shell and the outer shell are formed by splicing metal plates, the joint of the metal plates or the edges and cracks of the inner shell are generally sealed by adopting an adhesive, and particularly, the sealing is realized by adopting an aluminum adhesive tape, so that the defect of time consumption, easy leakage hole unsealing and inconvenient operation are overcome.

3. The traditional aluminum adhesive tape has low sealing viscosity and high tearing elongation, does not have high sealing flexibility, and is not easy to realize sealing in a larger area of a plate joint.

4. Traditional aluminum adhesive tape can not be uniformly, accurately and bubble-free coated and sealed, can not be rapidly cured, can not save earlier preparation steps, and is time-consuming and labor-consuming.

Therefore, how to improve the manufacturing efficiency of the housing of the refrigeration device, so that the manufacturing process saves time, reduces working procedures, and is easy to operate and implement is a technical problem that needs to be solved by those skilled in the art.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the present utility model provides a sealed refrigeration device housing, which is designed to make the manufacture of the refrigeration device housing simpler, and the sealing more stable and reliable, thereby saving time and reducing procedures, being easy to operate and implement, and being capable of better preserving heat and reducing necessary electric energy consumption.

To achieve the above object, the present utility model discloses a sealed refrigeration device housing for a refrigerator or a low-temperature storage and insulation compartment, comprising an outer housing, an inner housing disposed within the outer housing, and an insulating foam layer disposed between the outer housing and the inner housing;

the outer housing and the inner housing each comprise a plurality of rectangular sheet metal components;

the four right-angle parts of each metal plate component and the right-angle parts of the adjacent other metal plate component are respectively provided with a connecting sealing point;

each of the connection sealing points is coated with at least one two-component silicone resin layer as a sealing layer on a side facing the insulating foam layer.

Preferably, each of the metal plate members and the adjacent other metal plate member are fastened and fixed to each other by coating a two-component silicone layer.

Preferably, each connection sealing point connects the corresponding sheet metal parts by using a sheet metal joint;

the insulating foam layer is made of polyurethane foam;

each of the connection sealing points is coated with a double layer of the double-component silicone resin layer.

Preferably, the double-layer bi-component silicone resin layer is coated layer by layer, or is uniformly sprayed on one surface of the metal plate component facing the insulating foam layer by adopting a spray gun and a sprayer which are arranged on a crawler-type assembly line.

Preferably, the thickness of the metal plate member to which the two-layer bi-component silicone layer is applied is 1 mm to 4 mm.

Preferably, each of the two-component silicone layers is applied flat from a position of the corresponding right-angle portion near the center of the corresponding sheet metal member toward the corner tip direction of the corresponding right-angle portion.

Preferably, the insulating foam layer is a foaming insulating foam.

The utility model has the beneficial effects that:

according to the utility model, the outer shell and the inner shell are sealed by adopting the bi-component silicone resin layer, and the insulating foam layer is sealed in the outer shell and the inner shell, so that the manufacturing is simpler, the sealing is more stable and reliable, the time is saved, the working procedures are reduced, the operation and the implementation are easy, the heat preservation can be better carried out, and the necessary electric energy consumption is reduced.

The conception, specific structure, and technical effects of the present utility model will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present utility model.

Drawings

Fig. 1 shows a schematic structural diagram of an embodiment of the present utility model.

Fig. 2 is a schematic view showing a structure of one side of the inner housing inserted into the outer housing in an embodiment of the present utility model.

Detailed Description

Examples

As shown in fig. 1 and 2, a sealed refrigeration device housing for a refrigerator or a low-temperature storage and insulation compartment includes an outer case 1, an inner case 2 provided in the outer case 1, and an insulating foam layer 3 provided between the outer case 1 and the inner case 2;

the outer casing 1 and the inner casing 2 each include a plurality of rectangular metal plate members;

the four right-angle parts of each metal plate component and the right-angle part of the adjacent other metal plate component are respectively provided with a connecting sealing point 4;

each of the connection sealing points 4 is coated with at least one two-component silicone resin layer as a sealing layer on the side facing the insulating foam layer 3.

The connecting sealing points 4 used for connecting the right-angle parts of every two adjacent metal plate parts in the utility model adopt the bi-component silicone resin layer with the rapid curing effect as the sealing layers of the connecting sealing points 4, and each connecting sealing point 4 can be rapidly and accurately sealed.

If the sealing layer is peeled off again after curing, a two-component silicone layer can be sprayed again at the connection sealing point 4 using a sprayer or a spray gun spraying system, achieving uniform, accurate and bubble-free application of the sealing layer.

Also, a two-component silicone layer may be applied to the outer case 1 and the inner case 2, which have been completely installed, further simplifying the process flow.

The connection sealing point 4 is usually a wrap angle position of the box-shaped structures of the outer housing 1 and the inner housing 2 or a fixation reinforcement for the connection position of the right-angle parts of the plurality of sheet metal parts to each other.

The two-component silicone layer applied to the joint sealing point 4 has the advantages that the two-component silicone layer has high viscosity and high tearing elongation, particularly at the edge position of the joint sealing point 4 which is difficult to seal, the sealing operation can be simple, the joint sealing point 4 has no shrinkage movement dislocation phenomenon, the joint sealing point 4 with larger contact surface can be sealed more easily, and the sealing flexibility is higher than that of the prior art.

In some embodiments, each sheet metal component is secured to the adjacent other sheet metal component by applying a two-component silicone layer to fasten the two components to each other.

In some embodiments, each connection sealing point 4 connects the respective sheet metal components using sheet metal joints;

the insulating foam layer 3 is made of polyurethane foam;

each connection sealing point 4 is coated with a double layer of bi-component silicone resin.

In many cases, at the connection sealing point 4, each time a layer of bi-component silicone resin layer is coated, one layer of insulating foam layer 3 is reduced, the sealing effect of the sealing layer can be considered, and the heat insulation effect of the insulating foam layer 3 can be ensured.

In some embodiments, the double layer bi-component silicone layer is applied layer by layer, or sprayed evenly on the side of the sheet metal part facing the insulating foam layer 3 using a spray gun, a sprayer provided in a crawler-type assembly line.

In certain embodiments, the thickness of the double layer bi-component silicone layer coated sheet metal component is from 1 millimeter to 4 millimeters.

In some embodiments, each layer of two-component silicone is applied flat from a location where the respective right angle portion is near the center of the respective sheet metal component toward the corner tip of the respective right angle portion.

In certain embodiments, insulating foam layer 3 is a foaming insulating foam.

The foam of the foaming type insulating foam contains a plurality of small bubbles, and the heat conductivity of the foam is lower than that of air, so that the insulating foam layer 3 with particularly good insulating property can be formed, the temperature in the refrigerating chamber cabinet or the refrigerating and insulating box of the refrigerating chamber can be kept stable and low, and the energy consumption is saved.

The utility model also provides a manufacturing method of the shell of the sealed refrigeration device, which is characterized by comprising the following steps:

step 1, assembling all metal plate parts into an outer shell 1 and an inner shell 2, and seaming two adjacent metal plate parts;

step 2, coating a two-component silicone resin layer on each connection sealing point 4 of the inner surface of the outer shell 1 facing the insulating foam layer 3 and each connection sealing point 4 of the outer surface of the inner shell 2 facing the insulating foam layer 3;

and 3, after all the two-component silicone resin layers are solidified to form corresponding sealing layers, inserting the inner shell 2 into the outer shell 1, and then injecting an insulating foaming material into a space between the inner shell 2 and the outer shell 1 to form an insulating foam layer 3.

Since all of the connection sealing points 4 are coated with a two-component silicone resin layer and form a sealing layer, the insulating foamed material does not escape from the connection sealing points 4 of the inner case 2 and the outer case 1.

And the two-component silicone layer is firmly and stably located outside the inner case 2 and inside the outer case 1.

In some embodiments, a two-component silicone layer is sprayed with a spray gun over the joint between each two sheet metal parts and the corners within the inner housing 2 and the outer housing 1.

The technical means can spray sensitive parts such as connecting joints between metal plate parts and corners in the inner shell 2 and the outer shell 1 more conveniently.

The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.

Claims

1. The sealed refrigerating device shell is used for a refrigerator or a low-temperature storage and heat preservation chamber; characterized by comprising an outer housing (1), an inner housing (2) arranged in the outer housing (1), and an insulating foam layer (3) arranged between the outer housing (1) and the inner housing (2);

the outer housing (1) and the inner housing (2) each comprise a plurality of rectangular sheet metal parts;

the four right-angle parts of each metal plate component and the right-angle parts of the adjacent other metal plate component are respectively provided with a connecting sealing point (4);

each of the connection sealing points (4) is coated with at least one layer of two-component silicone resin as a sealing layer on the side facing the insulating foam layer (3).

2. The sealed refrigeration unit housing of claim 1 wherein each of said sheet metal members is secured to an adjacent one of said sheet metal members by a two-component silicone-coated fastening connection.

3. A sealed refrigeration unit enclosure according to claim 1, wherein each of said connection sealing points (4) connects respective ones of said sheet metal components using sheet metal joints;

the insulating foam layer (3) is made of polyurethane foam;

each of the connection sealing points (4) is coated with a double layer of the two-component silicone resin.

4. A sealed refrigeration unit enclosure according to claim 3, wherein a double layer of said bi-component silicone layer is applied layer by layer or uniformly sprayed on the side of said sheet metal part facing said insulating foam layer (3) using a spray gun, sprayer provided in a caterpillar track line.

5. The sealed refrigeration unit housing of claim 4 wherein said metal sheet member coated with a bilayer of said bi-component silicone layer has a thickness of 1 mm to 4 mm.

6. The sealed refrigeration unit housing of claim 1 wherein each of said two-component silicone layers is applied flat from a location of the respective right angle portion near the center of the respective sheet metal component toward the corner apex of the respective right angle portion.

7. Sealed refrigeration unit housing according to claim 1, characterized in that the insulating foam layer (3) is a foamed insulating foam.