Foaming box body for horizontal ultralow-temperature refrigerator

Abstract

The utility model belongs to the technical field of refrigerators, and particularly relates to a foaming box body for a horizontal ultralow-temperature refrigerator. Comprising a first foaming layer, a second foaming layer and a box shell, the box shell is mounted outside the second foaming layer; the second foaming layer is sleeved on the first foaming layer; the first foaming layer wraps the outer vertical face of the low-temperature lining, a fixing assembly is arranged in the first foaming layer, one side of the fixing assembly is detachably connected with the outer vertical face of the low-temperature lining, and the other side of the fixing assembly is fixedly connected with the tubular heat exchanger. The foaming box body is simple in structure and easy to manufacture, the installation precision of the tubular heat exchanger is improved, and the yield of the foaming box body is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigerators, and in particular relates to a foaming box body for a horizontal ultra-low temperature refrigerator. Background Art

[0002] The foaming box of the horizontal ultra-low temperature refrigerator is basically a rectangular parallelepiped, and some of the foaming boxes contain a compressor compartment at the lower right, where electrical components and refrigeration components are installed. For foaming boxes without a compressor compartment, the electrical components and refrigeration components need to be installed in a separate box on the right side or bottom of the foaming box.

[0003] Arranging the refrigerator's electrical components, refrigeration parts, etc. in one place is convenient for assembly and maintenance when there are not many parts. However, as the number of parts increases, the advantages of this layout will be greatly reduced, or even become a disadvantage.

[0004] Due to the current performance of foam materials and the thermal insulation requirements of the foam layer, ultra-low temperature refrigerators, especially those below -150°C, basically need to use secondary foaming. The shell of the primary foaming usually uses a foam board to keep warm and absorb the deformation between the foaming layer of the first foaming and the foaming layer of the second foaming, avoiding the foaming layer at the joint from cracking due to hot and cold shock.

[0005] Ultra-low temperature refrigerators, especially those below -150℃, have a huge temperature difference between exhaust temperature and return air temperature, usually around 250℃. In order to make full use of the cold and heat of the refrigeration system, a heat exchanger needs to be arranged in the foam layer of the first foaming. Due to the large size and weight of the heat exchanger, it is impossible to accurately position it. During the first foaming, soft materials (such as EPS, etc.) are usually used as foaming tools, which will lead to large errors in the shape and size of the foamed box obtained by the first foaming. When performing the second foaming, the foamed box obtained by the first foaming needs to be trimmed first, which is not only time-consuming, but also unable to guarantee the foaming density, resulting in inconsistent or substandard thermal insulation performance. Therefore, it is urgent to solve this problem.

[0006] The above contents are only used to assist in understanding the technical solution of the present utility model, and do not constitute an admission that the above contents are the closest prior art. Utility Model Content

[0007] The technical problem to be solved by the utility model is to provide a foam box for a horizontal ultra-low temperature refrigerator. The foam box has a simple structure and is easy to manufacture, thereby improving the installation accuracy of the tubular heat exchanger and the yield rate of the foam box.

[0008] To achieve the above-mentioned purpose, the technical solution of the utility model is implemented as follows: a foam box body for a horizontal ultra-low temperature refrigerator is provided, comprising: a first foam layer, a second foam layer and a box shell; the box shell is installed on the outside of the second foam layer; the second foam layer is sleeved on the first foam layer; the first foam layer is wrapped on the outer facade of the low-temperature lining, and a fixing component is provided in the first foam layer, one side of the fixing component is detachably connected to the outer facade of the low-temperature lining, and the other side is fixedly connected to the tubular heat exchanger.

[0009] Preferably, the box shell includes a bottom plate arranged at the bottom of the second foam layer, a vertical plate arranged at the front and back of the second foam layer, and side plates arranged on the left and right sides of the second foam layer, and the plate surface of the vertical plate is larger than the front and back of the second foam layer; the bottom plate, vertical plate and side plates are assembled with each other on the outer facade of the second foam layer to form an I-shaped shell together, and the cavities on both sides of the I-shaped shell constitute the installation area of ​​​​external components of the refrigerator.

[0010] Preferably, the fixing assembly comprises a support frame; a mounting hole is provided on the outer facade of the low-temperature lining; one end of the support frame is plug-fitted into the mounting hole; and the tubular heat exchanger is fixed to the other end of the support frame.

[0011] Preferably, the support frame is configured in a triangle shape.

[0012] Preferably, it also includes a rubber pad; the rubber pad is located between the tubular heat exchanger and the support frame.

[0013] Preferably, the inner sides of the four protruding ends of the I-shaped shell have draft angles.

[0014] Preferably, it also includes an evaporator; the evaporator is located in the first foaming layer and is bonded to the outer facade of the low-temperature lining.

[0015] Preferably, it also includes a KT board shell; the KT board shell is located between the first foaming layer and the second foaming layer, and is bonded and connected to the outside of the first foaming layer.

[0016] Preferably, it also includes a plastic lining; the plastic lining is configured to be trumpet-shaped, the bottom end of the plastic lining is connected to the opening of the low-temperature liner, and the top end of the plastic lining is connected to the top of the box shell.

[0017] The beneficial effects of the utility model are embodied in:

[0018] (1) The utility model provides a fixing component for fixing the tubular heat exchanger inside the first foaming layer, and the fixing component is detachably connected to the low-temperature lining, so that in actual use, it is convenient for operators to install the fixing component and fix the tubular heat exchanger on the fixing component, thereby solving the problem that the tubular heat exchanger cannot be positioned, reducing the difficulty of foaming the first foaming layer, and at the same time improving the finished product accuracy of the first foaming layer, thereby improving the yield rate.

[0019] (2) The utility model sets the box shell in an I-shape, and reserves installation space for installing external components of the refrigerator on the left and right sides of the foam box body. This not only increases the installation space of the external components of the refrigerator, but also makes the arrangement of the components of the refrigerator more possible, thereby increasing the space for redesign and improvement of the entire product. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a top view of the utility model.

[0022] Description of reference numerals:

[0023] 10. first foaming layer; 11. evaporator; 12. tubular heat exchanger; 13. KT plate shell;

[0024] 14. support frame; 141. rubber pad; 20. second foaming layer; 30. box shell; 31. bottom plate;

[0025] 32. Side panels; 40. Plastic lining; 50. Low-temperature lining. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] Example

[0028] See also Figure 1-2 As shown: The utility model provides a foam box body for a horizontal ultra-low temperature refrigerator, comprising: a first foam layer 10, a second foam layer 20 and a box shell 30.

[0029] The box shell 30 is installed on the outside of the second foam layer 20 ; the second foam layer 20 is sleeved on the outside of the first foam layer 10 , and the first foam layer 10 is wrapped on the outer facade of the low-temperature liner 50 .

[0030] The box shell 30 includes a bottom plate 31 arranged at the bottom of the second foam layer 20, a vertical plate arranged at the front and back of the second foam layer 20, and side plates 32 arranged at the left and right sides of the second foam layer 20, and the plate surface of the vertical plate is larger than the front and back of the second foam layer 20. The bottom plate 31, the vertical plate and the side plate 32 are assembled on the outer facade of the second foam layer 20 to form an I-shaped shell, and the cavities on both sides of the I-shaped shell constitute the installation area of ​​the external components of the refrigerator.

[0031] Through such an arrangement, an I-shaped foam box with two foam layers is formed, so that the components originally installed on the outside of the refrigerator have more installation areas, thereby increasing the possibility of redesigning and improving the entire refrigerator layout.

[0032] A fixing component is provided in the first foaming layer 10 , one side of the fixing component is detachably connected to the outer facade of the low-temperature liner 50 , and the other side is fixedly connected to the tubular heat exchanger 12 .

[0033] The fixing assembly includes a support frame 14; a plurality of mounting holes are provided on the outer surface of the low-temperature liner 50 and are distributed in the vertical direction of the outer surface of the low-temperature liner 50; one end of the support frame 14 is plugged into the mounting hole; and the tubular heat exchanger 12 is fixed to the other end of the support frame 14.

[0034] In actual configuration, there are at least four support frames 14 , which are respectively fixed on the side surfaces of the low-temperature liner 50 , so that the tubular heat exchanger 12 can be fixed along the circumferential direction of the low-temperature liner 50 .

[0035] Since the tubular heat exchanger 12 is heavy, in actual application, the support frame 14 is configured to be triangular to increase the stability and bearing capacity of the support frame 14 .

[0036] It also includes a rubber pad 141, which is located between the tubular heat exchanger 12 and the support frame 14. The tubular heat exchanger 12 is isolated from the fixing frame by the rubber pad 141, which reduces the heat transfer between the heat exchanger and the fixing frame.

[0037] It also includes an evaporator 11 ; the evaporator 11 is located in the first foaming layer 10 and is bonded and connected to the outer facade of the low-temperature liner 50 .

[0038] It also includes a KT board shell 13 ; the KT board shell 13 is located between the first foaming layer 10 and the second foaming layer 20 , and is bonded and connected to the outside of the first foaming layer 10 .

[0039] In actual use, before making the first foaming layer 10, the low-temperature liner 50 is inverted with the opening facing downward, and the pipeline of the evaporator 11 is first connected to the outer surface of the low-temperature liner 50, and then the support frame 14 is installed into the corresponding installation hole on the low-temperature liner 50 according to the size and installation requirements of the tubular heat exchanger 12, and the tubular heat exchanger 12 is fixed, and then the KT plate shell 13 is installed on the outside of the first foaming layer 10, and finally the metal foaming tooling used for the first foaming is set on the outside of the KT plate shell 13.

[0040] The plastic lining 40 is configured in a trumpet shape, the bottom of the plastic lining 40 is connected to the opening of the low temperature liner 50, and the top of the plastic lining 40 is connected to the top of the box shell 30. During the first foaming, the KT board shell 13 is connected to the low temperature liner 50 through the plastic lining 40.

[0041] During the second foaming, the box shell 30 is installed outside the first foaming layer 10, and the positions of the box shell 30 and the first foaming layer 10 are adjusted to form an I-shaped shell, and then the foaming material for the second foaming layer 20 is filled between the box shell 30 and the KT board shell 13 of the first foaming layer 10 for foaming. Finally, the components outside the refrigerator are installed on the left and right sides of the box shell 30.

[0042] The inner sides of the four extended ends of the I-shaped shell are provided with draft angles.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A foaming box for a horizontal ultra-low temperature refrigerator, characterized in that: include: A first foaming layer (10), a second foaming layer (20) and a box shell (30); the box shell (30) is installed on the outside of the second foaming layer (20); the second foaming layer (20) is sleeved on the first foaming layer (10); the first foaming layer (10) is wrapped on the outer surface of the low-temperature lining (50), and a fixing component is provided in the first foaming layer (10), one side of the fixing component is detachably connected to the outer surface of the low-temperature lining (50), and the other side is fixedly connected to the tubular heat exchanger (12).

2. The foaming box for a horizontal ultra-low temperature refrigerator according to claim 1, characterized in that: The box shell (30) comprises a bottom plate (31) arranged at the bottom of the second foaming layer (20), vertical plates arranged at the front and back of the second foaming layer (20), and side plates (32) arranged at the left and right sides of the second foaming layer (20); the bottom plate (31), vertical plates and side plates (32) are assembled with each other on the outer facade of the second foaming layer (20) to form an I-shaped shell together, and the cavities on both sides of the I-shaped shell constitute the installation area of ​​the external components of the refrigerator.

3. The foaming box for a horizontal ultra-low temperature refrigerator according to claim 2, characterized in that: The fixing assembly comprises a support frame (14); a mounting hole is provided on the outer facade of the low-temperature lining (50); one end of the support frame (14) is plug-fitted into the mounting hole; and the tubular heat exchanger (12) is fixed to the other end of the support frame (14).

4. The foaming box for a horizontal ultra-low temperature refrigerator according to claim 3, characterized in that: The support frame (14) is arranged in a triangle shape.

5. The foaming box for a horizontal ultra-low temperature refrigerator according to claim 4, characterized in that: It also includes a rubber pad (141); the rubber pad (141) is located between the tubular heat exchanger (12) and the support frame (14).

6. A foaming box for a horizontal ultra-low temperature refrigerator according to claim 2, 3, 4 or 5, characterized in that: The inner sides of the four extended ends of the I-shaped shell are provided with draft angles.

7. The foaming box for a horizontal ultra-low temperature refrigerator according to claim 6, characterized in that: It also includes an evaporator (11); the evaporator (11) is located in the first foaming layer (10) and is bonded to the outer surface of the low-temperature lining (50).

8. The foaming box for a horizontal ultra-low temperature refrigerator according to claim 7, characterized in that: It also includes a KT board shell (13); the KT board shell (13) is located between the first foaming layer (10) and the second foaming layer (20), and is bonded and connected to the outside of the first foaming layer (10).

9. The foaming box for a horizontal ultra-low temperature refrigerator according to claim 8, characterized in that: It also includes a plastic lining (40); the plastic lining (40) is configured to be trumpet-shaped, the bottom end of the plastic lining (40) is connected to the opening of the low-temperature liner (50), and the top end of the plastic lining (40) is connected to the top of the box shell (30).

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