Heat preservation assembly and refrigerator

Abstract

The utility model discloses a heat preservation assembly and a refrigerator. The heat preservation assembly comprises a vacuum heat insulation plate, a fixing frame and a positioning frame. The vacuum insulated panel is provided with a first mounting surface and a second mounting surface which are arranged at intervals in the thickness direction of the vacuum insulated panel. The fixing frame is provided with a containing groove and comprises a first fixing part, a second fixing part and a third fixing part which form the containing groove, the first fixing part is attached to the first installation face, the second fixing part is attached to the second installation face, and the third fixing part is connected between the first fixing part and the second fixing part. The positioning frame is used for being installed between the fixing frame and a refrigerator shell, the positioning frame comprises at least two connecting parts, the at least two connecting parts comprise the first connecting part and the second connecting part, the first connecting part is attached to the fixing frame, and the second connecting part is fixedly arranged between the first connecting part and the refrigerator shell. The heat preservation assembly is applied to the refrigerator, the installation efficiency of the heat preservation layer can be improved, cost is saved, and meanwhile the heat preservation and insulation effect of the refrigerator is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a heat preservation component and a refrigerator. Background Art

[0002] Refrigerators are common household appliances in people's lives. Refrigerators mainly store food or other items by maintaining a constant low temperature. An insulation layer is usually filled between the outer shell and the inner tank of the refrigerator to use the insulation layer to isolate the outside heat from entering the refrigerator, prevent the loss of cold air in the refrigerator, and reduce the startup frequency of the refrigerator compressor to save energy.

[0003] In the related art, since the vacuum insulation panel (VIP panel) has low thermal conductivity, good heat preservation performance, and the VIP panel is thin, the thickness of the insulation layer can be reduced, and the capacity of the refrigerator can be expanded. Therefore, the VIP panel has become a cost-effective heat preservation material for refrigerators. However, the existing VIP panel is usually fixed between the outer shell and the inner liner of the refrigerator by applying glue on the surface of the attachment or by affixing double-sided tape. This method is cumbersome to operate, complicated in process, and high in cost. Utility Model Content

[0004] The utility model provides a heat preservation component and a refrigerator, which can improve the installation efficiency of the heat preservation layer, save costs, and enhance the heat preservation performance of the refrigerator.

[0005] The technical solution adopted by the utility model is as follows:

[0006] According to the first aspect disclosed in the utility model, a heat preservation component is provided. The heat preservation component includes a vacuum insulation panel, a fixing frame and a positioning frame. The vacuum insulation panel has a first mounting surface and a second mounting surface spaced apart along the thickness direction of the vacuum insulation panel. The fixing frame has a receiving groove, and the fixing frame includes a first fixing portion, a second fixing portion and a third fixing portion forming the receiving groove, the first fixing portion is attached to the first mounting surface, the second fixing portion is attached to the second mounting surface, and the third fixing portion is connected between the first fixing portion and the second fixing portion. The positioning frame is used to be installed between the fixing frame and the outer shell of the refrigerator, and the positioning frame includes at least two connecting portions, and the at least two connecting portions include a first connecting portion and a second connecting portion, the first connecting portion is attached to the fixing frame, and the second connecting portion is fixed between the first connecting portion and the outer shell of the refrigerator.

[0007] The thermal insulation assembly provided by the utility model has the following beneficial effects:

[0008] When the insulation assembly provided by the utility model is used, a fixing frame is used to wrap part of the side wall of the vacuum insulation panel, and the wrapped vacuum insulation panel is installed between the outer shell and the inner liner of the refrigerator, so that a gap is formed between the vacuum insulation panel and the outer shell and the inner liner of the refrigerator. When the wrapped vacuum insulation panel is installed between the outer shell and the inner liner of the refrigerator, the first connecting portion of the positioning frame abuts between the fixing frame and the outer shell of the refrigerator, so that the vacuum insulation panel is clamped between the opposite side walls of the outer shell of the refrigerator to fix the vacuum insulation panel and prevent it from shifting. The second connecting portion is used to abut between the first connecting portion and the outer shell of the refrigerator, and is used to further separate the vacuum insulation panel from the outer shell of the refrigerator to prevent the vacuum insulation panel from contacting the outer shell, so as to form a gap around the vacuum insulation panel, reserve a channel for the foaming material, and facilitate the formation of the insulation layer of the refrigerator.

[0009] Compared with the related art which uses adhesive to fix and install the vacuum insulation panel, the insulation assembly provided by the utility model does not need to use double-sided tape or apply glue on the attachment surface to fix the vacuum insulation panel in the refrigerator shell. The insulation assembly simplifies the installation method of the vacuum insulation panel, can improve work efficiency and save costs. In addition, the insulation assembly is not fixed with an adhesive layer, which can avoid the stratification of the insulation layer caused by the peeling of the adhesive layer, thereby improving the insulation effect of the refrigerator.

[0010] The technical solution is further described below:

[0011] In one embodiment, the first connecting portion includes a first connecting surface affixed to the first fixing portion and a second connecting surface affixed to the third fixing portion, the second connecting portion is fixed between the first connecting surface and the refrigerator shell, and / or the second connecting portion is fixed between the second connecting surface and the refrigerator shell.

[0012] In one embodiment, an angle a is provided between the first connecting surface and the second connecting surface, and the angle a is ≤90°.

[0013] In one embodiment, the second connection portion is arranged obliquely relative to the first connection surface and / or the second connection surface.

[0014] In one embodiment, at least two connecting parts further include a third connecting part, and the third connecting part is connected between the first connecting part and the second connecting part, so that the first connecting part and the second connecting part are spaced apart.

[0015] In one embodiment, the distance from the side of the first connection part close to the third connection part to the side of the second connection part close to the third connection part is c, and the distance from the side of the first connection part away from the third connection part to the side of the second connection part away from the third connection part is d, c<d.

[0016] In one embodiment, the positioning frame is configured as a hollow structure.

[0017] In one embodiment, the thermal insulation component further includes at least two foam layers, the first foam layer is fixed on the first mounting surface, the second foam layer is fixed on the second mounting surface, and the thickness of the first foam layer is set to be no less than 10 mm.

[0018] In one embodiment, the vacuum insulation panel includes a plurality of side walls, the plurality of side walls include a first side wall and a second side wall that are adjacently arranged, the first side wall extends along the length direction of the vacuum insulation panel, and the second side wall extends along the width direction of the vacuum insulation panel; the receiving groove includes at least two receiving portions, the at least two receiving portions include a first receiving portion and a second receiving portion that are interconnected, the first side wall is embedded in the first receiving portion, and the second side wall is embedded in the second receiving portion;

[0019] Alternatively, at least three side walls of the vacuum insulation panel are embedded in the receiving groove.

[0020] According to a second aspect of the utility model, a refrigerator is provided, which includes a box assembly and the above-mentioned heat preservation assembly, the box assembly includes an outer shell and an inner liner, the heat preservation assembly is arranged between the outer shell and the inner liner, the first mounting surface of the vacuum insulation panel is arranged toward the outer shell, and the second mounting surface of the vacuum insulation panel is arranged toward the inner liner.

[0021] The refrigerator provided by the utility model has the following beneficial effects:

[0022] The refrigerator provided by the utility model utilizes the fixing frame and the positioning frame in the heat preservation assembly to fix the vacuum insulation board, which can improve the installation efficiency of the heat preservation layer, and at the same time avoid the stratification of the heat preservation layer caused by the peeling of the glue layer, thereby improving the heat preservation and heat insulation effect of the refrigerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the refrigerator of the utility model;

[0024] Figure 2 It is a structural schematic diagram of the heat preservation component of the utility model being installed on the outer shell of a refrigerator;

[0025] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0026] Figure 4 It is a schematic diagram of the structure of the fixed frame wrapped with the vacuum insulation panel of the utility model;

[0027] Figure 5 for Figure 4 A front view of the middle fixing frame;

[0028] Figure 6 for Figure 4 Right side view of the center bracket.

[0029] Reference numerals:

[0030] 1-refrigerator; 1a-freezer; 1b-refrigerator; 10-box assembly; 11-outer shell; 11a-top shell; 11b-bottom shell; 11c-side shell; 12-inner tank; 13-air duct; 20-compressor; 30-condenser; 40-evaporator.

[0031] 100-insulation component; 110-vacuum insulation panel; 110a-thickness direction of the vacuum insulation panel; 110b-length direction of the vacuum insulation panel; 110c-width direction of the vacuum insulation panel; 111-first mounting surface; 112-second mounting surface; 113-first side wall; 114-second side wall; 120-fixing frame; 121-first fixing part; 122-second fixing part; 123-third fixing part; 124-accommodating groove; 124a-first accommodating part; 124b-second accommodating part; 130-positioning frame; 131-first connecting part; 131a-first connecting surface; 131b-second connecting surface; 131c-angle a; 132-second connecting part; 133-third connecting part; 140-first foaming layer; 150-second foaming layer. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution in the utility model. Obviously, the described embodiments are only part of the embodiments of the present embodiment, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0034] Refrigerators are common household appliances in people's lives. Refrigerators mainly store food or other items by maintaining a constant low temperature. Since the temperature inside the refrigerator is relatively low, an insulation layer is usually filled between the outer shell and the inner tank of the refrigerator to use the insulation layer to isolate the outside heat from entering the refrigerator, prevent the loss of cold air in the refrigerator, and reduce the startup frequency of the refrigerator compressor to save energy.

[0035] In the related art, materials that can be used as refrigerator insulation layers include rigid polyurethane foam materials, aerogels, and vacuum insulation panels (VIP panels). Among them, rigid polyurethane foam materials have been gradually restricted in use because they contain fluorides, which can damage the ozone layer. Although aerogels can effectively block heat transfer, they are not suitable for widespread use due to their high price. VIP panels not only have low thermal conductivity and good thermal insulation performance, but are also thinner, which can reduce the thickness of the insulation layer and expand the capacity of the refrigerator. As a result, VIP panels have become a cost-effective insulation material for refrigerators.

[0036] However, in the related art, the common way to fix the VIP board is to fix it in the refrigerator shell by applying glue on the attachment surface or sticking double-sided tape on it. Such installation of the VIP board is not only cumbersome, complicated and costly, but also as the refrigerator ages, the shrinkage of the foam material will cause the adhesive layer on the attachment surface to fall off, resulting in delamination between the VIP board and the outer shell and the inner liner, causing air to enter the refrigerator, affecting the thermal insulation effect.

[0037] Refer to the following Figure 1 The utility model provides a refrigerator 1. The refrigerator 1 includes a box assembly 10, a compressor 20, a condenser 30, an evaporator 40, a throttling element and a heat preservation layer. The compressor 20, the condenser 30, the evaporator 40 and the throttling element are respectively arranged in the box assembly 10. The box assembly 10 includes an outer shell 11 and an inner tank 12, and the storage space of the refrigerator inner tank includes a freezing chamber 1a and a refrigerating chamber 1b. At least part of the evaporator 40 is arranged in the freezing chamber 1a. The heat preservation component is arranged between the outer shell and the inner tank to isolate external heat from entering the refrigerator and maintain a low temperature state in the refrigerator.

[0038] When the refrigerator 1 is in operation, the compressor 20 outputs a high-temperature and high-pressure gaseous refrigerant to the condenser 30, and the high-temperature and high-pressure gaseous refrigerant is condensed into a medium-temperature and high-pressure refrigerant through the condenser 30. The medium-temperature and high-pressure refrigerant passes through the throttling element, so that the pressure and temperature of the refrigerant are further reduced, and the low-temperature and low-pressure liquid refrigerant flows out of the throttling element to the evaporator 40. The low-temperature and low-pressure liquid refrigerant evaporates into a gaseous refrigerant in the evaporator 40. At least part of the evaporator 40 is arranged in the freezing chamber 1a, so that the refrigerant absorbs a large amount of heat in the freezing chamber 1a during the evaporation process, thereby reducing the temperature in the freezing chamber 1a, making it easier to use the freezing chamber 1a to freeze items and realize the refrigeration of the refrigerator 1. The refrigerant coming out of the evaporator 40 is replenished back to the compressor 20 to form a refrigerant circuit. In this way, the refrigerant circulates continuously in the refrigerant circuit to maintain the freezing environment of the freezing chamber 1a (for example, less than -1°C). At the same time, an air duct 13 is provided between the refrigerating compartment 1b and the freezing compartment 1a, so as to transport part of the cold air from the freezing compartment 1a to the refrigerating compartment 1b through the air duct 13, so as to reduce or maintain the low temperature environment of the refrigerating compartment 1b (for example, 2°C to 8°C).

[0039] To maintain the low temperature environment in the refrigerator 1, the utility model further provides a heat preservation assembly 100, which has a simple structure, is easy to install, can avoid stratification, and improves the heat preservation and heat insulation performance of the refrigerator 1. The heat preservation assembly 100 provided by the utility model will be described below.

[0040] See also Figures 2 to 4 The heat preservation assembly 100 includes a vacuum insulation panel 110, a fixing frame 120 and a positioning frame 130. The vacuum insulation panel 110 has a first mounting surface 111 and a second mounting surface 112 which are spaced apart in the thickness direction of the vacuum insulation panel 110. The fixing frame 120 has a receiving groove 124, and the fixing frame 120 includes a first fixing portion 121, a second fixing portion 122 and a third fixing portion 123 which form the receiving groove 124. The first fixing portion 121 is attached to the first mounting surface 111, the second fixing portion 122 is attached to the second mounting surface 112, and the third fixing portion 123 is connected between the first fixing portion 121 and the second fixing portion 122. The positioning frame 130 is used to be installed between the fixing frame 120 and the refrigerator shell. The positioning frame 130 includes at least two connecting parts, and the at least two connecting parts include a first connecting part 131 and a second connecting part 132. The first connecting part 131 is in contact with the fixing frame 120, and the second connecting part 132 is fixed between the first connecting part 131 and the refrigerator shell.

[0041] It should be noted that the outer shell of the refrigerator includes a top shell, a bottom shell and a plurality of side shells connected between the top shell and the bottom shell. When the vacuum insulation panel 110 is installed between the side shell and the inner tank, the first mounting surface 111 of the vacuum insulation panel 110 can be installed toward the side shell of the refrigerator, and the second mounting surface 112 of the vacuum insulation panel 110 can be installed toward the inner tank of the refrigerator, and gaps are left between the first mounting surface 111 and the outer shell, and between the second mounting surface 112 and the inner tank, respectively, to facilitate filling of the foaming material for foaming, thereby forming an insulation layer.

[0042] The fixing frame 120 and the positioning frame 130 are used to fix the vacuum insulation panel 110 before foaming, so that the vacuum insulation panel 110 is firmly installed between the outer shell and the inner tank of the refrigerator, avoiding the vacuum insulation panel 110 from contacting the outer shell or the inner tank of the refrigerator, which affects the subsequent foaming to form an insulation layer.

[0043] Among them, the fixing frame 120 wraps part of the side wall of the vacuum insulation panel 110 through the accommodating groove 124 to support and fix the vacuum insulation panel 110, and the various fixing parts of the fixing frame 120 can create a gap between the vacuum insulation panel 110 and the outer shell and inner liner of the refrigerator, thereby avoiding contact between the vacuum insulation panel 110 and the outer shell and inner liner of the refrigerator, and reserving a channel for the foaming material.

[0044] The positioning frame 130 is used to cooperate with the fixing frame 120 and the outer shell of the refrigerator to support and clamp the vacuum insulation panel 110. Among them, the first connecting portion 131 is used to abut between the fixing frame 120 and the outer shell of the refrigerator, so that the vacuum insulation panel 110 is clamped between the opposite side walls of the outer shell of the refrigerator to prevent the vacuum insulation panel 110 from shifting. The second connecting portion 132 is used to abut between the first connecting portion 131 and the outer shell of the refrigerator to further separate the vacuum insulation panel 110 from the outer shell of the refrigerator, prevent the vacuum insulation panel 110 from contacting the outer shell, and reserve a foaming layer between the vacuum insulation panel 110 and the outer shell of the refrigerator.

[0045] When the insulation assembly 100 provided by the utility model is used, the fixing frame 120 is used to wrap part of the side wall of the vacuum insulation panel 110, and the wrapped vacuum insulation panel 110 is installed between the outer shell and the inner liner of the refrigerator, so that a gap is formed between the vacuum insulation panel 110 and the outer shell and the inner liner of the refrigerator. When the wrapped vacuum insulation panel 110 is installed between the outer shell and the inner liner of the refrigerator, the first connecting portion 131 of the positioning frame 130 abuts between the fixing frame 120 and the outer shell of the refrigerator, so that the vacuum insulation panel 110 is clamped between the opposite side walls of the outer shell of the refrigerator to fix the vacuum insulation panel 110 and prevent it from shifting. The second connecting portion 132 is used to abut between the first connecting portion 131 and the outer shell of the refrigerator, and is used to further separate the vacuum insulation panel 110 from the outer shell of the refrigerator, prevent the vacuum insulation panel 110 from contacting the outer shell, so as to form a gap around the vacuum insulation panel 110, reserve a channel for the foaming material, and facilitate the formation of the insulation layer of the refrigerator.

[0046] Therefore, compared with the related art that uses adhesive to fix and install the vacuum insulation panel 110, the insulation component 100 provided by the utility model does not need to use double-sided tape or apply glue on the surface of the attachment to fix the vacuum insulation panel 110 in the refrigerator shell. The insulation component 100 simplifies the installation method of the vacuum insulation panel 110, which can improve work efficiency and save costs. In addition, the insulation component 100 is not fixed with an adhesive layer, which can avoid the stratification of the insulation layer caused by the peeling of the adhesive layer, thereby improving the thermal insulation effect of the refrigerator. In addition, the insulation component 100 of the utility model does not need to use an adhesive layer to fix the vacuum insulation panel 110, which can reduce the problem of scrapping the vacuum insulation panel 110 due to improper operation and reduce the waste of the vacuum insulation panel 110.

[0047] See you later Figure 2 In some embodiments, the thermal insulation assembly 100 further includes at least two foam layers, the first foam layer 140 is fixed to the first mounting surface 111, the second foam layer 150 is fixed to the second mounting surface 112, and the thickness of the first foam layer 140 is set to be not less than 10 mm.

[0048] It should be noted that the first foaming layer 140 may be a foaming layer between the vacuum insulation panel 110 and the refrigerator shell, and the second foaming layer 150 may be a foaming layer between the vacuum insulation panel 110 and the inner container of the refrigerator. The foaming layer formed around the vacuum insulation panel 110 can further fix the vacuum insulation panel 110, improve the compactness of the formed insulation layer, and avoid air in the insulation layer.

[0049] At the same time, the thicker the foam layer, the better the heat preservation performance of the refrigerator, but at the same time, the thicker the foam layer, the more storage space the freezer and refrigeration compartment of the refrigerator will occupy. Therefore, considering the heat preservation performance and capacity of the refrigerator, the thickness of the foam layer of the utility model is optionally set to 10mm, which can achieve a better heat preservation effect and expand the capacity of the refrigerator.

[0050] like Figure 3 As shown, in some embodiments, in order to improve the supporting effect of the vacuum insulation panel 110 and reserve a channel for the foaming material, the first connecting portion 131 includes a first connecting surface 131a affixed to the first fixing portion 121 and a second connecting surface 131b affixed to the third fixing portion 123. The second connecting portion 132 is fixedly disposed between the first connecting surface 131a and the refrigerator shell, and / or, the second connecting portion 132 is fixedly disposed between the second connecting surface 131b and the refrigerator shell.

[0051] It should be noted that the first connection portion 131 increases the contact area with the fixing frame 120 through the first connection surface 131a and the second connection surface 131b, thereby improving the support stability of the vacuum insulation panel 110. At the same time, when the wall thickness of the fixing frame 120 is large enough to meet the spacing requirement between the vacuum insulation panel 110 and the refrigerator shell, the second connection portion 132 can be set between the first connection surface 131a and the refrigerator shell according to the use requirements, or between the second connection surface 131b and the refrigerator shell. Of course, the second connection portion 132 can also be set between the first connection surface 131a and the refrigerator shell and between the second connection surface 131b and the refrigerator shell at the same time, and the utility model does not limit it.

[0052] As an example, when the fixing frame 120 is wrapped around the four sharp corners of the vacuum insulation panel 110, the sharp corner of the vacuum insulation panel 110 close to the top shell of the refrigerator is used as a reference. At this time, the first connection surface 131a can be set between the side shell of the refrigerator and the fixing frame 120, the second connection surface 131b can be set between the top shell of the refrigerator and the fixing frame 120, and the second connection portion 132 can be fixed between the first connection surface 131a and the side shell of the refrigerator. Of course, when the sharp corner of the vacuum insulation panel 110 close to the bottom shell of the refrigerator is used as a reference, the first connection surface 131a can be set between the side shell of the refrigerator and the fixing frame 120, and the second connection surface 131b can be set between the bottom shell of the refrigerator and the fixing frame 120. This utility model will not be repeated.

[0053] like Figure 3 As shown, in some embodiments, to prevent the gallbladder from being drawn out, an angle a131c is provided between the first connecting surface 131a and the second connecting surface 131b, and the angle a131c is ≤ 90°. When the foaming material is filled around the vacuum insulation panel 110 and foamed, the formed foaming layer will expand and fill around the vacuum insulation panel 110 to form an insulation layer. During the foaming process, the vacuum insulation panel 110 will be squeezed by the foaming layer. If the angle between the first connecting surface 131a and the second connecting surface 131b is large, the first connecting portion 131 cannot provide effective support for the vacuum insulation panel 110. At the same time, the insulation layer formed after foaming causes the inner tank of the refrigerator to protrude from the shell of the refrigerator, affecting the closing of the refrigerator door, and further affecting the sealing of the refrigerator refrigeration compartment and the freezer compartment, causing the refrigerator to leak cold and affecting the insulation effect. Therefore, in order to solve the problem of bile extraction from the inner liner, the utility model sets the angle a131c between the first connecting surface 131a and the second connecting surface 131b to not more than 90° after theoretical calculation and experimental verification, so that the inner liner can be prevented from being extracted and the first connecting portion 131 can provide effective support for the vacuum insulation panel 110. Optionally, the angle a131c is set to 90°, that is, the first connecting surface 131a and the second connecting surface 131b are arranged vertically, wherein the first connecting surface 131a extends along the length direction of the vacuum insulation panel 110, and the second connecting surface 131b extends along the width direction of the vacuum insulation panel 110.

[0054] In addition, when the wall thickness of the fixing frame 120 is large enough to meet the spacing requirement between the vacuum insulation panel 110 and the refrigerator shell, the first connecting portion 131 can also be provided with only the first connecting surface 131a, and the second connecting surface 131b can be replaced by the top shell or the bottom shell of the refrigerator, and the first connecting surface 131a can be vertically arranged on the top shell or the bottom shell of the refrigerator.

[0055] In some embodiments, to improve the structural strength of the positioning frame 130, the second connecting portion 132 is tilted relative to the first connecting surface 131a and / or the second connecting surface 131b to prevent the positioning frame 130 from being squeezed and deformed during the foaming process. In addition, the positioning frame 130 can also be made of steel to further improve the structural strength to prevent deformation.

[0056] Continue to refer Figure 3 In some embodiments, in order to further improve the structural strength of the positioning frame 130, at least two connecting parts of the positioning frame 130 also include a third connecting part 133, and the third connecting part 133 is connected between the first connecting part 131 and the second connecting part 132, so that the first connecting part 131 and the second connecting part 132 are spaced apart.

[0057] It should be noted that the positioning frame 130 can be set as a wedge-shaped block, the first connecting portion 131 is set as a right-angled surface of the wedge-shaped block, the second connecting portion 132 is set as an inclined surface of the wedge-shaped block, and the third connecting portion 133 is set as the top surface of the wedge-shaped block. During the foaming process, the first connecting portion 131 is abutted against the fixing frame 120, and the second connecting portion 132 and the second connecting portion 133 are used to disperse the squeezing force of the foaming material on the positioning frame 130, and the force is transmitted to the supporting point at the bottom of the wedge-shaped block, thereby increasing the structural stability and bearing capacity of the wedge-shaped positioning frame 130, reducing the deformation of the positioning frame 130 caused by the force, and making the positioning frame 130 more solid and reliable.

[0058] As an example, the distance from the side of the first connection part 131 close to the third connection part 133 to the side of the second connection part 132 close to the third connection part 133 is c, and the distance from the side of the first connection part 131 away from the third connection part 133 to the side of the second connection part 132 away from the third connection part 133 is d, and c<d. Wherein, c is the bottom surface of the wedge block, and d is the top surface of the wedge block. In this way, the fixing frame 120 forms a wedge block with a narrow top and a wide bottom, which can increase the support strength of the bottom of the wedge block, reduce the deformation of the positioning frame 130, reserve a channel for the foaming material, and clamp the vacuum insulation panel 110 at the same time.

[0059] In some embodiments, the positioning frame 130 is configured as a hollow structure to facilitate processing of the positioning frame 130. This configuration facilitates direct stamping of the positioning frame 130 on the outer shell of the refrigerator, and can also improve the connection strength between the positioning frame 130 and the outer shell of the refrigerator. In addition, the positioning frame 130 can also be configured as a separate structure from the outer shell of the refrigerator, and in this case, the hollow positioning frame 130 can still be filled with foaming material to improve the density of the foaming layer.

[0060] See also Figures 4 to 6In some embodiments, in order to improve the supporting effect of the fixing frame 120 on the vacuum insulation panel 110, at least two side walls of the vacuum insulation panel 110 are embedded in the receiving groove 124 to increase the contact area between the vacuum insulation panel 110 and the fixing frame 120, thereby improving the supporting effect.

[0061] As an example, the vacuum insulation panel 110 includes a plurality of side walls, the plurality of side walls include at least a first side wall 113 and a second side wall 114 that are adjacently arranged, the first side wall 113 extends along the length direction of the vacuum insulation panel 110, and the second side wall 114 extends along the width direction of the vacuum insulation panel 110. The receiving groove 124 includes at least two receiving portions, the at least two receiving portions include a first receiving portion 124a and a second receiving portion 124b that are interconnected, the first side wall 113 is embedded in the first receiving portion 124a, and the second side wall 114 is embedded in the second receiving portion 124b.

[0062] Alternatively, if Figure 5 As shown, when the vacuum insulation panel 110 is a rectangular panel, the first accommodating portion 124a and the second accommodating portion 124b of the fixing frame 120 are arranged in an L shape. At this time, four fixing frames 120 are used to wrap around the four sharp corners of the vacuum insulation panel 110, so that a gap can be created between the vacuum insulation panel 110 and the outer shell and the inner liner of the refrigerator, and a channel is reserved for the foaming material.

[0063] Of course, in other embodiments, in order to further improve the supporting effect of the fixing frame 120 on the vacuum insulation panel 110, the receiving groove 124 of the fixing frame 120 can also wrap at least three side walls of the vacuum insulation panel 110. As an example, the receiving groove 124 of the fixing frame 120 includes a first receiving portion 124a, a second receiving portion 124b and a third receiving portion, and the three receiving portions are connected in sequence to form a U-shaped arrangement. The multiple side walls of the vacuum insulation panel 110 include a first side wall 113, a second side wall 114 adjacent to the first side wall 113, and a third side wall arranged opposite to the first side wall 113 and connected to the second side wall 114. The first side wall 113 is embedded in the first receiving portion 124a, the second side wall 114 is embedded in the second receiving portion 124b, and the third side wall is embedded in the third receiving portion. This utility model will not be elaborated.

[0064] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

[0065] In addition, the technical solutions of the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

Claims

1. A thermal insulation component, characterized in that: include: A vacuum insulation panel having a first mounting surface and a second mounting surface spaced apart in a thickness direction of the vacuum insulation panel; A fixing frame having a receiving groove, the fixing frame comprising a first fixing portion, a second fixing portion and a third fixing portion forming the receiving groove, the first fixing portion being attached to the first mounting surface, the second fixing portion being attached to the second mounting surface, and the third fixing portion being connected between the first fixing portion and the second fixing portion; and A positioning frame is used to be installed between the fixing frame and the refrigerator shell. The positioning frame includes at least two connecting parts. The at least two connecting parts include a first connecting part and a second connecting part. The first connecting part is in contact with the fixing frame, and the second connecting part is fixed between the first connecting part and the refrigerator shell.

2. The thermal insulation assembly according to claim 1, characterized in that: The first connecting portion includes a first connecting surface affixed to the first fixing portion and a second connecting surface affixed to the third fixing portion, the second connecting portion is fixed between the first connecting surface and the refrigerator shell, and / or the second connecting portion is fixed between the second connecting surface and the refrigerator shell.

3. The thermal insulation assembly according to claim 2, characterized in that: An angle a is set between the first connecting surface and the second connecting surface, and the angle a is ≤90°.

4. The thermal insulation assembly according to claim 3, characterized in that: The second connection portion is arranged obliquely relative to the first connection surface and / or the second connection surface.

5. The thermal insulation assembly according to claim 1, characterized in that: The at least two connection parts further include a third connection part, and the third connection part is connected between the first connection part and the second connection part, so that the first connection part and the second connection part are spaced apart.

6. The thermal insulation assembly according to claim 5, characterized in that: The distance from the side of the first connection part close to the third connection part to the side of the second connection part close to the third connection part is c, and the distance from the side of the first connection part away from the third connection part to the side of the second connection part away from the third connection part is d, c<d.

7. The thermal insulation assembly according to claim 1, characterized in that: The positioning frame is configured as a hollow structure.

8. The thermal insulation assembly according to claim 1, characterized in that: The thermal insulation component also includes at least two foam layers, and the at least two foam layers include a first foam layer and a second foam layer. The first foam layer is fixed to the first mounting surface, and the second foam layer is fixed to the second mounting surface. The thickness of the first foam layer is set to be no less than 10 mm.

9. The thermal insulation assembly according to any one of claims 1 to 8, characterized in that: The vacuum insulation panel comprises a plurality of side walls, the plurality of side walls comprise a first side wall and a second side wall arranged adjacent to each other, the first side wall extends along the length direction of the vacuum insulation panel, and the second side wall extends along the width direction of the vacuum insulation panel; the receiving groove comprises at least two receiving parts, the at least two receiving parts comprise a first receiving part and a second receiving part connected to each other, the first side wall is embedded in the first receiving part, and the second side wall is embedded in the second receiving part; Alternatively, at least three side walls of the vacuum insulation panel are embedded in the accommodating groove.

10. A refrigerator, characterized in that: It comprises a box assembly and the thermal insulation assembly according to any one of claims 1 to 9, the box assembly comprises an outer shell and an inner liner, the thermal insulation assembly is arranged between the outer shell and the inner liner, the first mounting surface of the vacuum insulation panel is arranged toward the outer shell, and the second mounting surface of the vacuum insulation panel is arranged toward the inner liner.

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