Refrigeration appliance
By forming a closed cavity in the slot of the refrigeration appliance, and using the connecting structure between the insertion part and the slot to prevent leakage of the heat insulation material, the problem of leakage of the heat insulation material during the foaming process of the refrigeration appliance in the prior art is solved, and the effect of reducing manufacturing difficulty and cost is achieved.
Patent Information
- Application Number
- CN202311476380.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-07
- Publication Date
- 2025-05-09
AI Technical Summary
Existing refrigeration equipment is prone to leakage of heat insulation materials during foaming, resulting in increased manufacturing difficulty and cost.
By forming a closed cavity closed by the insertion portion in the slot, the connection structure between the insertion portion and the slot prevents leakage of the heat insulation material.
Effectively prevent heat insulation materials from leaking during foaming, reduce the manufacturing difficulty and cost of refrigeration equipment, and simplify the manufacturing and assembly process.
Smart Images
Figure CN119958184A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of household appliances, and in particular to a refrigeration appliance. Background Art
[0002] Nowadays, with the improvement of people's living standards, refrigeration appliances have entered thousands of households, such as refrigerators, wine cabinets and so on.
[0003] In order to reduce energy consumption, refrigeration appliances often use insulators to maintain a desired low temperature environment. For example, the cabinet or door of a refrigerator may include an insulator. The insulator may be formed by a foaming process. During the foaming process, a foaming liquid may be injected into the foaming space, so that the foaming liquid expands and solidifies to form an insulator.
[0004] However, due to the fluidity of the foaming liquid, the foaming liquid may leak out of the foaming space during the foaming process. In order to prevent the foaming liquid from leaking, an additional seal or a complex sealing structure may be used to enhance the sealing of the foaming space. This will increase the manufacturing difficulty and cost of the refrigeration appliance. Summary of the invention
[0005] An object of the embodiments of the present application is to provide an improved refrigeration appliance so as to overcome at least one of the above-mentioned deficiencies in the prior art.
[0006] According to the first aspect of the present application, an embodiment of the present application provides a refrigeration appliance, which is provided with: a first component and a second component, the first component and the second component are connected to each other by a connecting structure, and the connecting structure at least partially forms a boundary of a foaming space; and an insulating body foamed in the foaming space, wherein the connecting structure includes a slot of the first component and an insertion portion of the second component, the insertion portion is inserted into the slot along an insertion direction so that the first component is connected to the second component, and a closed cavity enclosed by the insertion portion is formed in the slot.
[0007] In this way, the insulation material can be prevented from leaking during foaming. It should be understood that the closed cavity is not completely airtightly sealed. In practice, a gap is inevitably left between the insert and the groove wall of the slot. During foaming, the insulation material in the form of a foaming liquid can be injected into the foaming space, and the foaming liquid can flow outward from the foaming space through the gap. By forming a closed cavity enclosed by the insert in the slot, the possible leakage path for the foaming liquid can include a gap-closed cavity-gap connected in sequence. After the foaming liquid enters the closed cavity along the leakage path, it will be decelerated and condensed in the closed cavity. In this way, the foaming liquid can be prevented from further flowing out of the foaming space through the gap downstream of the closed cavity.
[0008] By forming a closed cavity closed by the inserting portion in the slot, leakage can be effectively prevented without complicating the manufacturing and assembly process of the first component and the second component, thereby reducing the manufacturing difficulty and cost of the refrigeration appliance.
[0009] The closed cavity is not a narrow space passively formed due to manufacturing process or tolerance, but a structure intentionally designed to prevent leakage of insulation materials.
[0010] The volume of the closed cavity is, for example, more than 20% of the volume of the slot, which helps to keep the thermal insulation material in the closed cavity rather than continue to flow outward.
[0011] According to an optional embodiment of the present application, the closed cavity may be located in front of the insertion part in the insertion direction. Thus, leakage of the heat insulating material can be further prevented. In addition, the closed cavity can be formed by a simple structure and manufacturing process.
[0012] According to an optional embodiment of the present application, the first component may be provided with a stopper located on the slot wall of the slot, the stopper being configured to stop the insertion portion in the insertion direction so that the insertion portion is spaced apart from the bottom of the slot. A closed cavity may be formed between the insertion portion and the bottom of the slot. This makes the first component and the second component easy to manufacture and assemble.
[0013] According to an optional embodiment of the present application, the second component may be provided with a protrusion protruding transversely to the insertion direction, and the first component may abut against the protrusion to prevent the insertion portion from moving in the insertion direction so that the insertion portion is spaced apart from the bottom of the slot. A closed cavity may be formed between the insertion portion and the bottom of the slot. This also helps to simplify the manufacturing and assembly process of the first component and the second component. The protrusion also enables visual inspection to identify whether the first channel section and the second channel section are installed in place.
[0014] According to an optional embodiment of the present application, the slot may include a first slot portion and a second slot portion located in front of the first slot portion along the insertion direction. The width of the first slot portion may match the width of the insertion portion to allow the insertion portion to be inserted. The width of the second slot portion may be less than the width of the insertion portion to prevent the insertion portion from being inserted. This is conducive to forming a closed cavity in a manufacturing-friendly manner.
[0015] For example, the second insertion slot portion may be formed to have a cross section that narrows in the insertion direction.
[0016] Alternatively or additionally, the slot wall of the slot may be provided with a step portion, wherein the step portion is configured such that a first slot portion with a smaller width is located in front of the step portion in the insertion direction, and a second slot portion with a larger width is located behind the step portion in the insertion direction.
[0017] According to an optional embodiment of the present application, the first component and the second component can be configured as injection-molded parts. The insert portion and the slot can have a configuration that is easy to manufacture, in particular, easy to demould.
[0018] According to an optional embodiment of the present application, in the insertion direction, the distance between the insertion portion and the bottom of the slot may be greater than half the length of the portion of the insertion portion extending into the slot. This helps the thermal insulation material to stay and solidify in the closed cavity instead of continuing to flow outward.
[0019] According to an optional embodiment of the present application, the refrigeration appliance may include: a box having at least one compartment, the box being provided with the foaming space and the heat insulation body foamed and molded in the foaming space, and a supply channel for supplying cooling gas into the compartment and / or a return channel for leading the cooling gas out of the compartment. At least one of the supply channel and the return channel may include a first channel section as a first component and a second channel section as a second component. The first channel section may be provided with a slot, and the second channel section may be provided with an insertion portion, the insertion portion being inserted into the slot so that the first channel section is connected to the second channel section, and a closed cavity closed by the insertion portion is formed in the slot. With the aid of the closed cavity, it is possible to prevent the heat insulation material from leaking into the supply channel and / or the return channel during foaming. During foaming, if the foaming liquid leaks into the inside of the return channel via the connection structure between the first channel section and the second channel section, it is often difficult for the operator to detect. Therefore, it is particularly advantageous to prevent leakage using the above-mentioned closed cavity for the return channel surrounded by the heat insulation body.
[0020] According to an optional embodiment of the present application, the slot circumferentially surrounds the inner channel of the second channel section. Alternatively or additionally, the insert circumferentially surrounds the inner channel of the first channel section. Thus, the heat insulation material can be prevented from entering the supply channel and / or the return channel over the entire circumferential length.
[0021] In this context, "circumferential" and "radial" are directional expressions relative to the direction of gas flow defined by the supply or return channels.
[0022] According to an optional embodiment of the present application, the at least one compartment may include a first compartment and a second compartment separated from each other in a heat-insulated manner, and a first evaporator for cooling the first compartment and the second compartment is provided in the first compartment. The supply channel may connect the first compartment to the second compartment for supplying the gas cooled by the first evaporator to the second compartment. The return channel may connect the first compartment to the second compartment for guiding the gas in the second compartment to flow to the first evaporator.
[0023] According to an optional embodiment of the present application, the at least one compartment further comprises a third compartment. The second compartment and the third compartment may be arranged side by side with the first compartment in the width direction, respectively. The second compartment may be located above the third compartment. The return channel may be at least partially located directly behind the third compartment.
[0024] According to an optional embodiment of the present application, the return channel may include an inlet section, a middle section and an outlet section that are connected in sequence, the inlet section leads to the second chamber, the outlet section leads to the first chamber, and the middle section is located between the inlet section and the outlet section. For example, the middle section may extend in the height direction to facilitate the possible condensed water to flow out of the return channel. The inlet section and the outlet section extend from the middle section transversely to the middle section in opposite directions, so that the return channel is formed into a Z shape. This structure helps to prevent condensed water from accumulating in the return channel and reduce the storage space occupied by the return channel.
[0025] Optionally, any two adjacent ones of the inlet section, the middle section and the outlet section can be connected to each other as the first component and the second component through the connecting structure.
[0026] According to an optional embodiment of the present application, the refrigeration appliance may include a box body having a compartment and a door for closing the compartment, at least one of the box body and the door may be provided with the foaming space, an insulating body foamed in the foaming space, a first shell component as a first component and a second shell component as a second component, the first shell component and the second shell component bounding the foaming space from the outside. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] The present application will be described in more detail below with reference to the accompanying drawings, so that the principles, features and advantages of the present application can be better understood. The accompanying drawings include:
[0028] Figure 1A Schematically shows a refrigeration appliance according to an exemplary embodiment of the present application;
[0029] Figure 1B Schematically shows the Figure 1A Sectional view of section line AA in;
[0030] Figure 2A Schematically illustrates a return channel according to an exemplary embodiment of the present application;
[0031] Figure 2B Schematically shows Figure 2A A partial enlarged view of the circled part;
[0032] Figure 2C Schematically shows Figure 2B A portion of the first channel section shown in FIG.
[0033] Figure 3 The inlet section and the middle section in an exemplary embodiment according to the present application are schematically shown in an exploded view;
[0034] Figure 4A , Figure 4B , Figure 4C and Figure 4D Schematically illustrating the formation of a closed cavity in another embodiment; and
[0035] Figure 5 Schematically shows Figure 1B A magnified partial view of the circled portion.
[0036] Reference numerals list
[0037] 1 Cabinet
[0038] 10 rooms
[0039] 101 First Room
[0040] 102 Second Room
[0041] 103 The Third Room
[0042] 11 Liner
[0043] 12. Box shell
[0044] 13 First housing component
[0045] 14 Second housing component
[0046] 2 Supply channels
[0047] 3 Return channel
[0048] 31 First channel section
[0049] 32 Second channel section
[0050] 33 Entrance section
[0051] 34 Middle section
[0052] 35 Exit section
[0053] 4. First evaporator
[0054] 91 Foaming Space
[0055] 92 Insulation
[0056] 93 First Part
[0057] 931 Slots
[0058] 932 Closed Cavity
[0059] 933 Stopper
[0060] 934 First Slot Part
[0061] 935 Second slot part
[0062] 936 Steps
[0063] 94 Second Part
[0064] 941 Insertion
[0065] 942 Bump
[0066] 95 Connection structure DETAILED DESCRIPTION
[0067] In order to make the technical problems, technical solutions and beneficial technical effects to be solved by the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and multiple exemplary embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the scope of protection of the present application.
[0068] First, for ease of understanding, let's go back to the description in the background technology section. The refrigeration appliances in the prior art have problems such as foaming liquid leakage, difficulty in manufacturing, and high cost.
[0069] In response to at least one of the above-mentioned technical problems or other possible technical problems, an exemplary embodiment of the present application provides a refrigeration appliance, which comprises: a first component and a second component, the first component and the second component are connected to each other by a connecting structure, and the connecting structure at least partially forms a boundary of a foaming space; and an insulating body foamed in the foaming space, wherein the connecting structure comprises a slot of the first component and an insertion portion of the second component, the insertion portion is inserted into the slot along an insertion direction so as to connect the first component to the second component, and a closed cavity enclosed by the insertion portion is formed in the slot.
[0070] In order to better understand the present application, exemplary embodiments of the present application will be described below with reference to the accompanying drawings.
[0071] Before starting the detailed description, it should be pointed out that the directional terms used in the description process refer to the normal use state of the refrigeration appliance for the convenience of description and should not be understood as an absolute limitation on the corresponding features. In some drawings, arrows are schematically shown to indicate the height direction H, the width direction W and the depth direction D that are perpendicular to each other.
[0072] Figure 1A A refrigeration appliance according to an exemplary embodiment of the present application is schematically shown. Figure 1BSchematically shows the Figure 1A Section view of section line AA in.
[0073] like Figure 1A and Figure 1B As shown, the refrigeration appliance may include a box body 1 having at least one compartment 10. The refrigeration appliance may also include a door (not shown here) for closing the compartment 10. The items to be cooled may be stored in the compartment 10. The box body 1 may be provided with a foaming space 91 and a heat insulator 92 foamed and molded in the foaming space 91. With the help of the heat insulator 92, a low temperature environment in the compartment 10 can be maintained with lower energy consumption.
[0074] The refrigeration appliance may further include a supply channel 2 for supplying cooling gas into the compartment 10 and / or a return channel 3 for leading the cooling gas out of the compartment 10. Figure 1A In FIG. 1 , the supply channel 2 and the return channel 3 are shown with dotted lines.
[0075] In this embodiment, the at least one compartment 10 exemplarily includes a first compartment 101, a second compartment 102, and a third compartment 103 separated from each other in a heat-insulating manner. The second compartment 102 and the third compartment 103 can be arranged side by side with the first compartment 101 along the width direction W of the refrigeration appliance. The second compartment 102 is located above the third compartment 103. The refrigeration appliance may also be provided with a first evaporator 4 for cooling the first compartment 101 and the second compartment 102, which is arranged in the first compartment 101.
[0076] The supply channel 2 may be configured to connect the first compartment 101 to the second compartment 102 for supplying the gas cooled by the first evaporator 4 to the second compartment 102. The return channel 3 may be configured to connect the first compartment 101 to the second compartment 102 for guiding the gas in the second compartment 102 to flow to the first evaporator 4. Through the supply channel 2 and the return channel 3, the first evaporator 4 located in the first compartment 101 may also be used to reduce the temperature of the second compartment 102. In particular, the return channel 3 may be at least partially located directly behind the third compartment 103. The return channel 3 may be at least partially projected onto the third compartment 103 along the depth direction D.
[0077] Optionally, the refrigeration appliance is further provided with another evaporator for cooling the third chamber 103. Alternatively, it is also feasible that the third chamber 103 is cooled by the first evaporator 4.
[0078] In this embodiment, the first chamber 101 can be implemented as a freezer. The second chamber 102 can be implemented as a refrigerator, for example. The third chamber 103 can be implemented as a temperature-changing chamber or an ice chamber. For example, the operating temperature of the freezer can be below minus 18°C. The operating temperature of the refrigerator can be between 0°C and 5°C. The operating temperature of the ice chamber is, for example, between minus 3°C and minus 5°C.
[0079] In this embodiment, the refrigeration appliance is exemplarily implemented as a combined refrigerator having a refrigerating chamber and a freezing chamber. In another embodiment, the at least one compartment 10 may also include only one compartment 10. Alternatively, the at least one compartment 10 may include only a first compartment 101 and a second compartment 102. The first compartment 101 and the second compartment 102 may be arranged side by side along the width direction W of the refrigeration appliance, or may be stacked up and down along the height direction H. As needed, the present application may also be applied to other refrigeration appliances other than refrigerators, such as wine cabinets. The present application is particularly suitable for household refrigeration appliances.
[0080] The following takes return channel 3 as an example. Figure 1B , the return channel 3 can be arranged in the box body 1 and surrounded by the heat insulator 92. The heat insulator 92 can be filled around the return channel 37 by foaming, thereby forming a part of the box body 1. For example, the inner liner 11 and the box shell 12 of the refrigeration appliance for enclosing the compartment 10 can together limit the foaming space 91 from the outside. The return channel 3 can be located in the space enclosed by the inner liner 11 and the box shell 12. The return channel 3 at least partially forms the boundary of the foaming space 91.
[0081] During the foaming process, the heat insulating material in the form of a foaming liquid may be injected into the foaming space 91 , and expanded and solidified in the foaming space 91 , thereby forming the heat insulating body 92 .
[0082] Figure 2A The return channel 3 according to an exemplary embodiment of the present application is schematically shown.
[0083] The return channel 3 may include a first channel section 31 as a first component 93 and a second channel section 32 as a second component 94. The first channel section 31 and the second channel section 32 may be connected to each other via a connecting structure 95 which at least partially forms a boundary of the foaming space 91.
[0084] Figure 2B Schematically shows Figure 2A A magnified view of the encircled portion.
[0085] like Figure 2B As shown, the first channel section 31 may be provided with a slot 931, and the second channel section 32 may be provided with an insertion portion 941. The insertion portion 941 may be inserted into the slot 931 along an insertion direction (as shown by the arrow) to connect the first channel section 31 to the second channel section 32. The connection structure 95 includes the insertion portion 941 of the first channel section 31 and the slot 931 of the second channel section 32. The connection structure 95 may at least partially form a boundary of the foaming space 91. The heat insulator 92 (not shown here) may be foamed in the foaming space 91.
[0086] A closed cavity 932 is formed in the slot 931 and is closed by the insertion portion 941. The slot 931 may have a slot opening that allows the insertion portion 941 to enter, and the insertion portion 941 may close the slot opening after being inserted into the slot 931. Figure 2B In the illustrated embodiment, the insertion portion 941 does not completely fill the space of the slot 931 , so that a portion of free space is left in the slot 931 to form a closed cavity 932 .
[0087] With the help of the closed cavity 932, it is possible to prevent the insulation material from leaking into the return channel 3 during foaming. It should be understood that the closed cavity 932 is not completely airtightly sealed. In practice, a gap is inevitably left between the insert portion 941 and the groove wall of the slot 931. During foaming, the foaming liquid can flow from the foaming space 91 outside the return channel 3 into the return channel 3 through the gap. By forming a closed cavity 932 closed by the insert portion 941 in the slot 931, the leakage path that may exist for the foaming liquid can include a gap connected in sequence - the closed cavity 932 - the gap. After the foaming liquid enters the closed cavity 932 along the leakage path, it will be decelerated and condensed in the closed cavity 932. Thereby, the foaming liquid can be prevented from further flowing into the return channel 3 through the gap downstream of the closed cavity 932.
[0088] During foaming, if the foaming liquid leaks into the return channel 3 through the connection structure 95 between the first channel section 31 and the second channel section 32, the operator is often difficult to detect. Therefore, using the above-mentioned closed cavity 932 to prevent leakage is particularly beneficial for the return channel 3 surrounded by the insulator 92.
[0089] During operation of the refrigeration appliance, the closed cavity 932 helps to prevent leakage of cooling gas in the supply channel 2 and / or the return channel 3 .
[0090] By forming a closed cavity 932 closed by the inserting portion 941 in the slot 931, leakage can be effectively prevented without complicating the manufacturing and assembly process of the first component 93 and the second component 94. Specifically, the first component 93 and the second component 94 can be connected to each other only by plugging, without additional assembly operations to enhance the sealing. In addition, there is no need to set an additional sealing member, such as a sealing sponge, between the first component 93 and the second component 94. Therefore, the manufacturing difficulty and cost of the refrigeration appliance can be reduced.
[0091] It should be understood that the closed cavity 932 is not a narrow space passively formed due to manufacturing process or tolerance, but is a structure intentionally designed to prevent leakage of the thermal insulation material.
[0092] The volume of the closed cavity 932 is, for example, more than 20% of the volume of the slot 931. This helps the thermal insulation material to stay in the closed cavity 932 and not continue to flow into the internal channels of the first channel section 31 and the second channel section 32. The "internal channel" may refer to the internal space of the supply channel 2 and / or the return channel 3 through which the gas flows.
[0093] like Figure 2B As shown, the closed cavity 932 may be located in front of the insertion portion 941 in the insertion direction of the insertion portion 941. This configuration is easy to manufacture and can effectively prevent leakage.
[0094] On the possible leakage path, the closed cavity 932 may be separated from the internal channel of the foaming space 91 and the return channel 3 by a longer path upstream and downstream, respectively. For example, the closed cavity 932 is separated from the internal channel of the foaming space 91 and the return channel 3 by a gap that may exist between the insert portion 941 and the groove wall of the slot 931 upstream and downstream along the leakage path. The gap (if any) is long and narrow. After the foaming liquid enters the closed cavity 932, the foaming liquid flows in the closed cavity 932 along the insertion direction to "try" to fill the closed cavity 932. Before the closed cavity 932 is filled with the foaming liquid, a small amount of foaming liquid may have entered the gap between the insert portion 941 and the groove wall of the slot 931 downstream of the closed cavity 932 and decelerated and solidified there, so that the gap downstream is blocked. Thereby, leakage of the thermal insulation material can be further prevented. In addition, the closed cavity 932 can be formed by a simple structure and manufacturing process.
[0095] In the insertion direction, a distance d1 of the insertion portion 941 relative to the bottom of the slot 931 may be greater than a half of a length d2 of a portion of the insertion portion 941 extending into the slot 931 .
[0096] Figure 2C Schematically shows Figure 2B FIG. 4 is a detail of the first channel section 31 shown in FIG.
[0097] like Figure 2C As shown, the first channel section 31 may be provided with a stopper 933 located on the groove wall of the slot 931. The stopper 933 may be configured to stop the insertion portion 941 in the insertion direction of the insertion portion 941 so that the insertion portion 941 is spaced apart from the bottom of the slot 931, and the closed cavity 932 is formed between the insertion portion 941 and the bottom of the slot 931. During the assembly process, the closed cavity 932 can be formed by inserting the insertion portion 941 into the slot 931 until it is stopped by the stopper 933, without requiring additional operations and without increasing the complexity of the assembly process.
[0098] The stopper 933 is formed as a step 936, for example. This makes it easy to manufacture and assemble the first channel section 31 and the second channel section 32. For example, the first channel section 31 and the second channel section 32 can be manufactured by an injection molding process. The above structure can make it easy to demold the first channel section 31 and the second channel section 32 during the injection molding process.
[0099] In another embodiment, the stopper 933 may also be formed as a protrusion protruding from one of the slot walls of the slot 931 toward the other slot wall.
[0100] Back to Figure 2A The return channel 3 may include, for example, an inlet section 33, an intermediate section 34 and an outlet section 35 which are connected in sequence. Figure 1A It can be seen that the inlet section 33 can lead to the second chamber 102, the outlet section 35 can lead to the first chamber 101, and the middle section 34 is located between the inlet section 33 and the outlet section 35. The middle section 34 can extend in particular along the height direction H to facilitate the possible condensed water to flow out of the return channel 3. The inlet section 33 and the outlet section 35 can extend from the middle section 34 transversely to the middle section 34 in opposite directions, so that the return channel 3 is formed into a Z shape.
[0101] The gas flowing from the second chamber 102 to the first evaporator 4 via the return channel 3 has a high temperature and humidity, and thus is easily condensed in the return channel 3. In order to connect the first chamber 101 to the second chamber 102 for guiding the gas in the second chamber 102 to flow to the first evaporator 4, the return channel 3 needs to span a large distance. This configuration of the return channel 3 helps prevent condensed water from accumulating in the return channel 3 and reduces the storage space occupied by the return channel 3.
[0102] The inlet section 33 , the middle section 34 and the outlet section 35 of the return channel 3 can be formed as separate components, and can be connected to each other, for example, by plug-in connection. This split configuration is particularly conducive to realizing the Z-shaped structure of the return channel 3 .
[0103] For example, any two adjacent ones of the inlet section 33, the middle section 34 and the outlet section 35 can be connected to each other as the first channel section 31 and the second channel section 32 through the connecting structure 95. Thus, a return channel with a complex configuration can be realized with a simple structure and manufacturing process.
[0104] Optionally, the connection structure 95 for connecting the first channel section 31 and the second channel section 32 of the return channel 3 may be at least partially located right behind the third chamber 103 .
[0105] Figure 3The inlet section 33 and the middle section 34 in an exemplary embodiment according to the present application are schematically shown in an exploded view.
[0106] The inlet section 33 can be formed as a first channel section 31 and provided with a slot 931. The slot 931 can extend a full circle in the circumferential direction at the end of the inlet section 33. The outlet section 35 can be formed as a second channel section 32 and provided with an insert 941. The insert 941 can extend a full circle in the circumferential direction at the end of the outlet section 35. The insert 941 can extend a full circle in the circumferential direction at the end of the outlet section 35. Figure 3 ) is inserted into the slot 931 so that the middle section 34 is connected to the entrance section 33.
[0107] The slot 931 can be particularly configured to surround the inner channel of the second channel segment 32 in the circumferential direction in the assembled state. That is, the slot 931 can surround the inner channel of the second channel segment 32 in the circumferential direction within a complete circle. The insert portion 941 can be configured to surround the inner channel of the first channel segment 31 in the circumferential direction in the assembled state. In this way, the heat insulation material can be prevented from entering the return channel 3 over the entire circumferential length.
[0108] The middle section 34 and the outlet section 35 of the return channel 3 can also be connected to each other in this way. This connection method can also be applied to other embodiments in which the return channel 3 includes multiple channel sections.
[0109] Figure 4A , Figure 4B , Figure 4C and Figure 4D The closed cavity 932 formed in another embodiment is schematically shown, wherein the arrow shows the insertion direction of the insertion portion 941 into the insertion slot 931 .
[0110] like Figure 4A As shown, the second channel section 32 may be provided with a protrusion 942 protruding transversely to the insertion direction. The protrusion 942 may protrude radially outward. The first channel section 31 may abut against the protrusion 942 to prevent the insertion portion 941 from moving in the insertion direction so that the insertion portion 941 is spaced apart from the bottom of the slot 931. The closed cavity 932 may be formed between the insertion portion 941 and the bottom of the slot 931. This also helps to simplify the manufacturing and assembly process of the first channel section 31 and the second channel section 32. The protrusion 942 also makes it possible to identify whether the first channel section 31 and the second channel section 32 are installed in place by visual inspection.
[0111] In other embodiments, the protrusion 942 may also be implemented in other forms, for example, it may be formed on the inner side of the second channel section 32 and protrude radially inward.
[0112] exist Figure 4BIn the exemplary embodiment shown, the slot 931 of the first channel segment 31 may include a first slot portion 934 and a second slot portion 935 located in front of the first slot portion 934 in the insertion direction.
[0113] The width w1 of the first slot portion 934 may be greater than the width w2 of the second slot portion 935. The width w1 of the first slot portion 934 may match the width of the insert portion 941 to allow the insert portion 941 to be inserted. The first slot portion 934 may, for example, provide a clamping force for clamping the insert portion 941 to prevent the insert portion 941 from escaping. The width w2 of the second slot portion 935 may be less than the width of the insert portion 941 to prevent the insert portion 941 from being inserted. This is conducive to forming the closed cavity 932 in a manner that is easy to manufacture. This configuration is particularly advantageous when the first channel section 31 and the second channel section 32 are configured as injection molded parts.
[0114] The second slot portion 935 may be formed, for example, to have a cross section that narrows along the insertion direction, such as a trapezoidal or triangular cross section.
[0115] It is also feasible that the first slot portion 934 and the second slot portion 935 are transitioned through a step portion 936 disposed on the slot wall of the slot 931. Figure 2C The step portion 936 is configured such that the first slot portion 934 having a smaller width is located in front of the step portion 936 in the insertion direction, and the second slot portion 935 having a larger width is located in the rear of the step portion 936 in the insertion direction.
[0116] Figure 4C and Figure 4D It is shown that the closed cavity 932 may be located on both sides or one side of the insertion portion 941 in the insertion direction of the insertion portion 941 .
[0117] For example, the slot 931 of the first channel segment 31 may include a first slot portion 934 and a second slot portion 935 located in front of the first slot portion 934 along the insertion direction, wherein the width of the first slot portion 934 is smaller than the width of the second slot portion 935. The insertion portion 941 of the second channel segment 32 may be inserted into the first slot portion 934 and the second slot portion 935 until contacting the bottom of the slot 931.
[0118] The width of the first slot portion 934 may match the width of the insertion portion 941, thereby allowing the insertion portion 941 to be inserted. The first slot portion 934 may provide a clamping force for clamping the insertion portion 941. The width of the second slot portion 935 may be greater than the width of the insertion portion 941, thereby forming a closed cavity 932 inside and / or outside the insertion portion 941 in the second slot portion 935.
[0119] Although the return channel 3 is used as an example for explanation above, the structure described above for preventing insulation material leakage by means of the closed cavity 932 can also be applied to other components of the refrigeration appliance. For example, this structure can be applied to pipeline components surrounded by the insulation body 92, such as the supply channel 2.
[0120] In an exemplary embodiment according to the present application, at least one of the supply channel 2 and the return channel 3 may include a first channel section 31 as a first component 93 and a second channel section 32 as a second component 94. The first channel section 31 is provided with a slot 931, and the second channel section 32 is provided with an insertion portion 941. The insertion portion 941 is inserted into the slot 931 so as to connect the first channel section 31 to the second channel section 32. A closed cavity 932 closed by the insertion portion 941 is formed in the slot 931.
[0121] Furthermore, in the refrigeration appliance, for the connection structure 95 for connecting the first component 93 and the second component 94, as long as it at least partially forms the boundary of the foaming space 91, a similar design can be applied to prevent the leakage of the insulation material.
[0122] Figure 5 Schematically shows Figure 1B A magnified partial view of the circled portion.
[0123] like Figure 5 As shown, the box body 1 may be provided with a foaming space 91, a heat insulator 92 foamed and molded in the foaming space 91, a first shell component 13 as a first component 93, and a second shell component 14 as a second component 94. The first shell component 13 and the second shell component 14 may limit the foaming space 91 of the box body 1 from the outside.
[0124] The first housing member 13 may be provided with a slot 931, and the second housing member 14 may be provided with an insertion portion 941. The insertion portion 941 may be inserted into the slot 931 to connect the first housing member 13 to the second housing member 14. A closed cavity 932 closed by the insertion portion 941 is formed in the slot 931. Thus, the foaming material may be prevented from leaking out of the first housing member 13 and the second housing member 14 during foaming.
[0125] The first housing component 13 may be an inner liner 11 or a box shell 12. The second housing component 14 may be an inner liner 11 or a box shell 12 connected to the first housing component 13.
[0126] In an exemplary embodiment according to the present application, the door of the refrigeration appliance may be provided with a foaming space 91 and a heat insulator 92 foamed and molded in the foaming space 91, a first shell component 13 as a first component 93, and a second shell component 14 as a second component 94. The first shell component 13 and the second shell component 14 may limit the foaming space 91 of the door from the outside.
[0127] For example, the first housing component 13 may be a door liner, door shell or door handle of the door of the refrigeration appliance, and the second housing component 14 may be a door liner, door shell or door handle connected to the first housing component 13 .
[0128] Although specific embodiments have been described above, these embodiments are not intended to limit the scope of the present disclosure, even when only a single embodiment is described with respect to specific features. The feature examples provided in the present disclosure are intended to be illustrative, not restrictive, unless otherwise stated. In specific implementations, multiple features may be combined with each other, depending on actual needs, where technically feasible. In particular, the features in different embodiments may also be combined with each other. Various replacements, changes, and modifications may also be conceived without departing from the spirit and scope of the present application.
Claims
1. A refrigeration appliance, comprising: A first component (93); The second component (94), the first component (93) and the second component (94) are connected to each other via a connecting structure (95), and the connecting structure (95) at least partially forms a boundary of the foaming space (91); and A heat insulating body (92) foamed and formed in the foaming space (91), It is characterized in that The connecting structure (95) includes a slot (931) of a first component (93) and an insertion portion (941) of a second component (94); the insertion portion (941) is inserted into the slot (931) along an insertion direction so as to connect the first component (93) to the second component (94); and a closed cavity (932) closed by the insertion portion (941) is formed in the slot (931).
2. The refrigeration appliance according to claim 1, characterized in that: The closed cavity (932) is located in front of the insertion portion (941) in the insertion direction.
3. The refrigeration appliance according to claim 1 or 2, characterized in that: The first component (93) is provided with a stopper (933) located on the groove wall of the slot (931), and the stopper (933) is configured to stop the insertion part (941) in the insertion direction so that the insertion part (941) is spaced apart relative to the bottom of the slot (931), and a closed cavity (932) is formed between the insertion part (941) and the bottom of the slot (931).
4. The refrigeration appliance according to claim 1 or 2, characterized in that: The second component (94) is provided with a protrusion (942) protruding transversely to the insertion direction, and the first component (93) abuts against the protrusion (942) to prevent the insertion part (941) from moving along the insertion direction so that the insertion part (941) is spaced apart from the bottom of the slot (931), and a closed cavity (932) is formed between the insertion part (941) and the bottom of the slot (931).
5. The refrigeration appliance according to claim 1 or 2, characterized in that: The slot (931) includes a first slot portion (934) and a second slot portion (935) located in front of the first slot portion (934) along the insertion direction, wherein the width of the first slot portion (934) matches the width of the insertion portion (941) to allow the insertion portion (941) to be inserted, and the width of the second slot portion (935) is smaller than the width of the insertion portion (941) to prevent the insertion portion (941) from being inserted.
6. The refrigeration appliance according to claim 5, characterized in that: The second slot portion (935) is formed to have a cross section that narrows along the insertion direction; and / or The slot wall of the slot (931) is provided with a step portion (936), and the step portion (936) is configured so that the first slot portion (934) with a smaller width is located in front of the step portion (936) in the insertion direction, and the second slot portion (935) with a larger width is located behind the step portion (936) in the insertion direction.
7. The refrigeration appliance according to claim 5, characterized in that: The first component (93) and the second component (94) are designed as injection-molded parts.
8. The refrigeration appliance according to any one of claims 1-2, 6-7, characterized in that: The volume of the closed cavity (932) is more than 20% of the volume of the slot (931).
9. The refrigeration appliance according to any one of claims 1-2, 6-7, characterized in that: In the insertion direction, the distance between the insertion portion (941) and the bottom of the slot (931) is greater than half the length of the portion of the insertion portion (941) extending into the slot (931).
10. The refrigeration appliance according to any one of claims 1-2, 6-7, characterized in that: Refrigeration appliances include: A box body (1) having at least one compartment (10), the box body (1) being provided with the foaming space (91) and a heat insulating body (92) foamed and formed in the foaming space (91), and A supply channel (2) for supplying cooling gas into a compartment (10) and / or a return channel (3) for leading cooling gas out of the compartment (10), wherein at least one of the supply channel (2) and the return channel (3) comprises a first channel section (31) as a first component (93) and a second channel section (32) as a second component (94), the first channel section (31) being provided with a slot (931), the second channel section (32) being provided with an insertion portion (941), the insertion portion (941) being inserted into the slot (931) so as to connect the first channel section (31) to the second channel section (32), and a closed cavity (932) closed by the insertion portion (941) being formed in the slot (931).
11. The refrigeration appliance according to claim 10, wherein: The slot (931) circumferentially surrounds the internal channel of the second channel section (32); and / or The insert portion (941) circumferentially surrounds the inner channel of the first channel section (31).
12. The refrigeration appliance according to claim 10, characterized in that: The at least one compartment (10) comprises a first compartment (101) and a second compartment (102) which are separated from each other in a heat-insulating manner, and a first evaporator (4) for cooling the first compartment (101) and the second compartment (102) is provided in the first compartment (101), wherein: The supply passage (2) connects the first chamber (101) to the second chamber (102) so as to supply the gas cooled by the first evaporator (4) to the second chamber (102); and / or The return channel (3) connects the first chamber (101) to the second chamber (102) so as to guide the gas in the second chamber (102) to flow to the first evaporator (4).
13. The refrigeration appliance according to claim 12, wherein: The at least one compartment (10) further comprises a third compartment (103), wherein the second compartment (102) and the third compartment (103) are respectively arranged side by side with the first compartment (101) in the width direction, the second compartment (102) is located above the third compartment (103), and a connection structure (95) for connecting the first channel section (31) and the second channel section (32) of the return channel (3) is at least partially located directly behind the third compartment (103).
14. The refrigeration appliance according to claim 12, wherein: The return channel (3) comprises an inlet section (33), a middle section (34) and an outlet section (35) which are connected in sequence, wherein the inlet section (33) leads to the second chamber (102), the outlet section (35) leads to the first chamber (101), and the middle section (34) is located between the inlet section (33) and the outlet section (35), wherein: The middle section (34) extends in the height direction; and / or The inlet section (33) and the outlet section (35) extend from the middle section (34) in opposite directions transversely to the middle section (34), so that the return channel (3) is formed into a Z shape; and / or Any two adjacent ones of the inlet section (33), the middle section (34) and the outlet section (35) are connected to each other as the first component (93) and the second component (94) through the connecting structure (95).
15. The refrigeration appliance according to any one of claims 1-2, 6-7, wherein: The refrigeration appliance comprises a box body (1) having a compartment (10) and a door for closing the compartment (10); at least one of the box body (1) and the door is provided with the foaming space (91), a heat insulator (92) foamed and molded in the foaming space (91), a first shell component (13) as a first component (93), and a second shell component (14) as a second component (94); the first shell component (13) and the second shell component (14) limit the foaming space (91) from the outside.