A refrigeration appliance

Abstract

A refrigeration appliance comprises a housing having a foaming space adapted to receive a foaming agent to fill a thermal insulation material in the foaming space in a foaming process, a foaming injection hole to inject the foaming agent into the foaming space, and further comprises a sealing structure comprising at least two valve portions adjacently arranged along the depth direction of the foaming injection hole and respectively adapted to close the foaming injection hole after the foaming agent is injected into the foaming space. By the present application, an improved refrigeration appliance can be provided, which can better avoid the leakage phenomenon of the refrigeration appliance after the foaming agent is injected. It is especially suitable for the refrigeration appliance with an ultra-thin door structure, or the refrigeration appliance with a small box thickness.

Description

Technical Field

[0001] This invention relates to the field of refrigeration equipment technology, and specifically to a refrigeration equipment. Background Technology

[0002] For refrigeration appliances such as refrigerators and freezers, insulation material is usually filled inside the casing to achieve better cooling performance. After the door of the refrigeration appliance is closed, the casing filled with insulation material can effectively prevent heat exchange between the storage compartment and the outside environment.

[0003] During the manufacturing stage, foaming agent is injected into the foaming space of the shell through foaming injection holes opened in the shell wall. The foaming agent foams within the foaming space to form insulation material. During the injection and foaming process, the high pressure within the foaming space may cause the foaming agent to overflow through the foaming injection holes, resulting in leakage. For refrigeration appliances with ultra-thin door structures or thin cabinets, foaming agent leakage is particularly severe. Summary of the Invention

[0004] One objective of this invention is to provide an improved refrigeration appliance that can better prevent leakage after the refrigeration appliance is injected with a foaming agent.

[0005] Therefore, embodiments of the present invention provide a refrigeration appliance, comprising: a housing having a foaming space adapted to receive a foaming agent in a foaming process for filling the foaming space with insulation material; a foaming injection hole for injecting the foaming agent into the foaming space; and further comprising: a sealing structure including at least two valve portions, the at least two valve portions being adjacently distributed along the depth direction of the foaming injection hole and respectively used to close the foaming injection hole after the foaming agent is injected into the foaming space.

[0006] This implementation scheme effectively prevents leakage in refrigeration appliances after the foaming agent is injected. Specifically, at least two valve sections adjacent to each other along the foaming agent injection direction form multiple leakage-proof barriers, making it possible to virtually eliminate foaming agent leakage during the foaming process. For refrigeration appliances with ultra-thin door structures, where the foaming agent is injected on the narrower side of the door frame, resulting in a higher foaming density near the foaming injection hole, this implementation scheme is particularly suitable for such scenarios, effectively preventing foaming agent leakage.

[0007] Optionally, the at least two valve sections are spaced apart along the depth direction of the foam injection hole.

[0008] Optionally, the foam injection hole includes an inlet and an outlet, the outlet facing the foaming space, the inlet located on the surface of the housing, and the at least two valve portions including a first valve portion and a second valve portion; wherein the first valve portion is located inside the outlet, and / or the second valve portion is located between the inlet and the outlet.

[0009] Optionally, the at least two valve sections are mounted on the same mounting base.

[0010] Optionally, the at least two valve sections include a first valve section and a second valve section, wherein, in the foaming process, the first valve section is adapted to open the entire area of ​​the foaming injection hole, and the second valve section is adapted to open a portion of the foaming injection hole.

[0011] Optionally, at least one of the at least two valve sections may be made of a material different from that of the other valve sections.

[0012] Optionally, the at least two valves include a first valve portion made of a non-elastic material and a second valve portion made of an elastic material.

[0013] Optionally, the first valve portion is located inside the second valve portion, wherein the inside refers to the side facing the foaming space.

[0014] Optionally, the at least two valve sections include a first valve section and a second valve section, wherein at least a portion of the first valve section is rotatable relative to the housing before the foaming process to open or close the foaming injection hole, and at least a portion of the second valve section is rotatable relative to the housing before the foaming process to open or close the foaming injection hole.

[0015] Optionally, the area of ​​the first movable part of the first valve section is larger than the area of ​​the second movable part of the second valve section.

[0016] Optionally, the projection of the first movable part of the first valve portion is larger than the projection of the foam injection hole and completely covers the foam injection hole, and the projection of the second movable part of the second valve portion is located inside the foam injection hole and smaller than the foam injection hole.

[0017] Optionally, the first valve portion includes a first fixed portion and a first movable portion, wherein the first fixed portion is located on one side of the first movable portion.

[0018] Optionally, the first movable part overlaps with the edge region surrounding the foam injection hole.

[0019] Optionally, the connection between the first fixed part and the first movable part has a groove, and the first movable part rotates relative to the housing about the groove as an axis.

[0020] Optionally, the second valve portion includes a second fixed portion and a second movable portion, wherein the second fixed portion is located at least on a first side of the second movable portion, and the first side corresponds to the side of the first movable portion that is not connected to the first fixed portion.

[0021] Optionally, the second fixed part is disposed around the edge of the second movable part.

[0022] Optionally, the second movable part may be in the shape of a straight line, a cross, or a star.

[0023] Optionally, the area of ​​the second movable part is adapted to the size of the foaming agent filling head used for injecting the foaming agent.

[0024] Optionally, the refrigeration appliance further includes a stop portion disposed between the foaming injection hole and the first valve portion, the stop portion being used to restrict the first valve portion to a position where the foaming injection hole is closed after the foaming process.

[0025] Optionally, the housing includes a first component and a second component connected to each other, the foam injection hole extending through the first component and the second component, and the sealing structure including a sealing ring located between the first component and the second component, the sealing ring being disposed around the inlet of the foam injection hole located in the first component.

[0026] Optionally, the housing includes a door, the door includes a panel assembly and a shell assembly disposed around at least one edge of the panel assembly, the panel assembly includes at least two spaced glass plates, the foaming space is located between the shell assembly and the panel assembly, and the foaming injection hole is located in the shell assembly.

[0027] Another aspect of this invention relates to a refrigeration appliance, comprising: a door, the door including a panel assembly and a shell assembly, the panel assembly including at least two spaced-apart glass plates, the shell assembly surrounding the panel assembly and forming a foaming space therewith, the shell assembly including a first component and a second component connected to each other, wherein the first component and the second component respectively constitute a portion of the outer surface of the door, the second component including a mounting base located inside the first component; wherein the door includes a foaming injection hole that penetrates the first component and the mounting base in sequence, and a valve portion mounted on the mounting base for closing the foaming injection hole in a foaming process.

[0028] The first component may be, for example, a frame that forms the upper surface, lower surface, left side surface, and / or right side surface of the door.

[0029] The second component can be, for example, the rear panel attached to the frame.

[0030] Another aspect of this invention relates to a refrigeration appliance, comprising: a door, the door including a panel assembly and a shell assembly, the panel assembly including at least two spaced-apart glass plates, the shell assembly being disposed around at least one edge of the panel assembly and forming a foaming space with the panel assembly, the foaming space having a first transverse segment and a second transverse segment extending laterally and a first vertical segment and a second vertical segment extending longitudinally, the width of the first transverse segment and the width of the second transverse segment being greater than the width of the first vertical segment and the second vertical segment, the shell assembly having a foaming injection hole adapted to inject a foaming agent into the foaming space in a foaming process, the foaming injection hole being opened opposite one of the first transverse segment and the second transverse segment.

[0031] Another aspect of this invention relates to a refrigeration appliance, comprising: a door, the door including a panel assembly and a shell assembly, the panel assembly including at least two spaced-apart glass plates, the shell assembly being disposed around at least one edge of the panel assembly and forming a foaming space with the panel assembly, the foaming space having a first transverse segment and a second transverse segment extending laterally and a first vertical segment and a second vertical segment extending longitudinally, the width of the first transverse segment and the width of the second transverse segment being smaller than the width of the first vertical segment and the second vertical segment, the shell assembly having a foaming injection hole adapted to inject a foaming agent into the foaming space in a foaming process, the foaming injection hole being opened opposite one of the first vertical segment and the second vertical segment. Attached Figure Description

[0032] Figure 1 This is a partial schematic diagram of a refrigeration appliance according to an embodiment of the present invention;

[0033] Figure 2 yes Figure 1 The door shown is a cross-sectional view along the AA direction;

[0034] Figure 3 yes Figure 1 Exploded view of the door of the refrigeration appliance shown;

[0035] Figure 4 yes Figure 3 A magnified view of a portion of region B in the middle;

[0036] Figure 5 This is a schematic diagram of the assembly of the first valve part and the housing according to an embodiment of the present invention;

[0037] Figure 6 yes Figure 5 A sectional view along the CC direction;

[0038] Figure 7 yes Figure 1 A cross-sectional view along the DD direction of the area where the foam injection hole of the door is located.

[0039] Figure 8 yes Figure 7 A schematic diagram of the structure of the region shown during the injection of the foaming agent;

[0040] In the attached image:

[0041] 1-Refrigeration appliance; 10-Shell; 101-Door; 102-Cabinet; 103-Storage compartment; 104-Storage section; 105-Main door; 106-Shelf; 107-Shell assembly; 108-Handle; 11-Foaming space; 111-Upper transverse section; 112-Lower transverse section; 113-First vertical section; 114-Second vertical section; 12-Foaming injection hole; 121-Inlet; 122-Inner hole; 123-Outlet; 13-Panel assembly; 131-Glass plate; 132-Rear panel; 133-Front panel; 134-Grip part; 135-Through hole; 136-Door seal mounting part; 136a-Receiving groove; 137-Glass spacer; 138-Protective plate; 139-Rotating shaft; 14-Frame; 141-Upper frame; 14 2-Lower frame; 143-Side frame; 15-Sealing structure; 152-First valve part; 153-Second valve part; 154-Mounting base; 156-Main body part; 156a-First surface of the main body part; 156b-Second surface of the main body part; 157-Slot; 157a-Insert; 158-Fixing groove; 159-Flange; 161-First fixing part; 162-First movable part; 163-Notch; 164-Groove; 165-Stop part; 171-Second fixing part; 172-Second movable part; 173-Handle part; 18-Sealing ring; 2-Foaming agent filling head; W1-Width of the first vertical section; W2-Width of the second vertical section; W3-Width of the upper horizontal section; W4-Width of the lower horizontal section; x-Depth direction of the foaming injection hole. Detailed Implementation

[0042] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0043] Figure 1 This is a partial schematic diagram of a refrigeration appliance according to an embodiment of the present invention; Figure 2 yes Figure 1 The door shown is a cross-sectional view along the AA direction; Figure 3 yes Figure 1 Exploded view of the door of the refrigeration appliance shown.

[0044] The refrigeration appliance 1 described in this embodiment can be a refrigerator, freezer, or freezer.

[0045] Specifically, refer to Figure 1 and Figure 2The refrigeration appliance 1 may include: a housing 10, the housing 10 may have a foaming space 11 for receiving a foaming agent (not shown) in a foaming process to fill the foaming space 11 with insulation material (not shown).

[0046] Furthermore, the refrigeration appliance 1 may also include a foaming injection hole 12 for injecting the foaming agent into the foaming space 11.

[0047] In one embodiment, the housing 10 may include a box 102, which may have at least one storage compartment 103 suitable for storing items. The housing 10 includes a door 101 located at the front of the box 102.

[0048] In this embodiment, a main door 105 may be provided between the door 101 and the cabinet 102. The door 101 is movably located in front of the main door 105. When the main door 105 is opened, the user can retrieve items from the storage room 103.

[0049] The main door 105 may be equipped with a storage section 104, from which the user can store or retrieve items when the door 101 is opened.

[0050] The storage section 104 may be provided with at least one shelf 106 along the height direction of the refrigeration appliance 1 to divide the storage section 104 into multiple storage spaces.

[0051] During the manufacturing process of the refrigeration appliance 1, insulation material is injected into the housing 10 during a foaming process to ensure the thermal insulation performance of the housing 10. The housing 10 has an insulation space suitable for receiving the insulation material. The cabinet 102, the main door 105, and the door 101 may each have corresponding insulation spaces filled with insulation material.

[0052] In a specific implementation, refer to Figures 1 to 3 The door 101 may include a front panel 133 and at least one glass panel 131 disposed at a distance from the front panel 133. The front panel 133 and the glass panel 131 located behind the front panel 133 may be formed as a panel assembly 13 in the form of a pre-assembled component.

[0053] In one embodiment, panel assembly 13 may include at least two layers of spaced-apart glass plates 131. For example, panel assembly 13 may have two to three layers of spaced-apart glass plates 131 with inert gas filling the spaces between adjacent glass plates 131. Alternatively, panel assembly 13 may include a front panel 133 and a vacuum glass module (e.g., [missing information]) located behind the front panel 133. Figure 2 The front panel 133 consists of two glass plates 131 with a very small gap located behind it. A gap may exist between the vacuum glass module and the front panel 133. An inert gas may be filled between the vacuum glass module and the front panel 133.

[0054] A glass spacer 137 may be provided around at least two layers of spaced glass panels 131 and the front panel 133 to form a heat-insulating space between the at least two layers of spaced glass panels 131 and the front panel 133, and the heat-insulating space is filled with inert gas or air.

[0055] Furthermore, door 101 may include a shell assembly 107 connected to panel assembly 13. Shell assembly 107 may be disposed around at least one edge of panel assembly 13.

[0056] The shell assembly 107 may include a rear panel 132 and a border 14 disposed around the front panel 133 and the rear panel 132.

[0057] In one embodiment, continue to refer to Figures 1 to 3 The frame 14 may include an upper frame 141, a lower frame 142, and a pair of side frames 143. The corresponding edges of the rear panel 132 are connected to the upper frame 141, the lower frame 142, and the side frames 143, respectively.

[0058] It should be understood that although frame 141, lower frame 142, and side frame 143 are provided separately in the illustrated embodiment, in alternative embodiments, at least two of frame 141, lower frame 142, and side frame 143 may be a single piece. Similarly, it is possible for any part of the rear panel 132 and the frame 14 to be a single piece.

[0059] In one embodiment, the bezel 14 and the rear panel 132 are integrally located behind the front panel 133. In an alternative embodiment, depending on aesthetic requirements, at least a portion of the bezel 14 may be located in front of the front panel 133.

[0060] The border 14 can be attached to the back of the front panel 133.

[0061] In a specific implementation, refer to Figure 2 and Figure 3 The rear panel 132 may have a through-hole 135, the edge of which surrounds the panel assembly 13, and the edge region of the through-hole 135 may be located behind the panel assembly 13 to cover the edge of the panel assembly 13. The rear panel 132 may have a door seal mounting portion 136 for receiving a door seal (not shown). For example, the rear panel 132 has a receiving groove 136a on the side opposite to the panel assembly 13 near the edge of the through-hole 135, and the door seal mounting portion 136 includes the receiving groove 136a.

[0062] Further, refer to Figure 3 The door seal mounting part 136 may be provided with reinforcing ribs at intervals on the side facing the panel assembly 13 to further improve the structural strength.

[0063] The shape and area of ​​the through hole 135 can be adapted to the size of the storage section 104. When the front panel 133 and at least two layers of spaced glass plates 131 both include light-transmitting viewing windows, the user can see the storage section 104 directly through the door 101 without opening the door 101.

[0064] In one embodiment, along the width direction of the refrigeration appliance 1, one side of the front panel 133 may extend beyond the frame 14 located on that side, such as beyond the side frame 143. The portion of the front panel 133 extending beyond the side frame 143 may be formed with a grip 134, which the user can grasp to open the door 101.

[0065] refer to Figure 2 On the side of the front panel 133 facing the main door 105, a protective plate 138 with a shape adapted to the grip part 134 can also be attached to the grip part 134 to protect the grip part 134.

[0066] refer to Figure 1 The main door 105 may have a handle 108 that extends forward between the front panel 133 and the rear panel 132, which the user can grasp to open the main door 105.

[0067] In one embodiment, door 101 may include a foamed space 11 surrounding panel assembly 13 to form an insulating space within door 101.

[0068] The foam space 11 is located between the shell assembly 107 and the panel assembly 13. For example, the foam space 11 is enclosed by the shell assembly 107 and the panel assembly 13. In one embodiment, the panel assembly 13 may be tightly bonded to the shell assembly 107 by a thermal insulation material. In another embodiment, the panel assembly 13 may be separated from the thermal insulation material.

[0069] The foam space 11 can be in the shape of a "U". The foam space 11 can be arranged around the rear of the front panel 133. For example, the foam space 11 surrounds the edge area of ​​the component of the panel assembly 13 located behind the front panel 132 to enhance the thermal insulation effect.

[0070] Door 101 has a foam injection hole 12 for injecting foaming agent into the foaming space 11 during the foaming process. The foam injection hole 12 is located in the shell assembly 107. In this embodiment, after foaming is completed, the insulation material is bonded to the panel assembly 13 and the shell assembly 107.

[0071] In a specific implementation, refer to Figure 3The roughly U-shaped foaming space 11 may include an upper transverse segment 111 and a lower transverse segment 112 extending laterally, and a first vertical segment 113 and a second vertical segment 114 extending longitudinally. The first vertical segment 113 is close to the rotation axis 139 of the door 101, and the second vertical segment 114 is away from the rotation axis 139 of the door 101.

[0072] In one embodiment, reference Figure 2 and Figure 3 The width W1 of the first vertical segment 113 and the width W2 of the second vertical segment 114 are both smaller than the width W3 of the upper horizontal segment 111 and the width W4 of the lower horizontal segment 114.

[0073] Because the foaming space 11 has a relatively thin, U-shaped structure, the foaming agent will generate greater pressure within the foaming space 11. In order to improve the foaming quality, the inventors, after multiple designs and verifications, discovered that when the foaming injection hole 12 is injected into the foaming space 11 from one end of one of the transverse sections with a larger width, causing the foaming agent to flow along that transverse section and the vertical section near the foaming injection hole 12 and finally converge in the other transverse section, it is beneficial to improve the foaming quality of the door 101.

[0074] For example, the foaming agent can be injected into the foaming space 11 into the lower transverse section 112. Thus, the foaming agent can converge in the upper transverse section 111, so even if the upper frame 141 is provided with vents, it will not significantly affect the appearance of the door 101.

[0075] The foam injection hole 12 can be located on the side frame 143 of the frame 14, facing the intersection of the horizontal and vertical sections of the foaming space 11, which is particularly beneficial for improving the foaming quality. The foam injection hole 12 can be located on the side frame 143 away from the rotation axis 139.

[0076] In one embodiment, reference Figure 3 The foaming injection hole 12 can be opened in front of the lower transverse section 112. When the foaming agent is injected into the foaming space 11, part of the foaming agent flows along the lower transverse section 112 and the first vertical section 113 to the upper transverse section 111, and another part of the foaming agent flows along the second vertical section 114 to the upper transverse section 111. The two flow together in the upper transverse section 111.

[0077] In another embodiment, the foaming injection hole 12 may also be opened opposite the upper transverse section 111 of the foaming space 11. When the foaming agent is injected into the foaming space 11, a portion of the foaming agent flows down the lower transverse section 112 along the upper transverse section 111 and the first vertical section 113 (or the second vertical section 114), while another portion of the foaming agent flows down the lower transverse section 112 along the second vertical section 114 (or the first vertical section 113), and the two converge in the lower transverse section 112.

[0078] It is understandable that if the widths (W1 and W2) of the vertical sections of the foaming space 11 of the door 101 are both greater than the widths (W3 and W4) of the horizontal sections of the door 101, then the foaming injection hole 12 will be positioned facing one of the vertical sections in the intersection area of ​​the horizontal and vertical sections of the foaming space 11. When the foaming agent is injected into the foaming space 11, the foaming agent can flow in different directions and converge in the other vertical section.

[0079] In one embodiment, the door 101 may include a sealing structure 15 for closing the foam injection port 12 after the foaming agent has been injected into the foaming space 11. The sealing structure 15 may include at least one valve portion for closing the foaming space 11.

[0080] The housing assembly 107 may include a first component and a second component that are interconnected, wherein the first component and the second component respectively form a portion of the outer surface of the door 101, and the second component may include a mounting base 154 located inside the first component, and the valve portion may be mounted on the mounting base 154.

[0081] The first component may be, for example, a frame that forms the upper surface, lower surface, left side surface, and / or right side surface of the door 101.

[0082] The second component may be, for example, the rear panel 132 attached to the frame.

[0083] The rear panel 132 has a mounting base 154 protruding toward the front panel 133 on the side facing the thermal insulation space (hereinafter referred to as the "foaming space" 11), and at least one valve can be mounted on the mounting base 154. When there are multiple valves, all multiple valves are mounted on the mounting base 154.

[0084] Because the valve is mounted on the mounting base 154, rather than on the opposite inner surface of the wall forming the outer surface of the refrigeration appliance housing as in the prior art, it is beneficial to enhance the strength of the mounting base 154 and the design freedom of the door. When the foaming pressure is higher, the position design of the mounting base 154 in this embodiment is more complex, making it possible to set a sealing structure 15 with better sealing performance.

[0085] In one specific implementation, the foam injection hole 12 may include an opposing inlet 121 and an outlet 123, wherein the outlet 123 faces the foaming space 11, such as... Figure 7 As shown; inlet 121 is located on the surface of housing 10, as... Figure 3 As shown. The space from inlet 121 to outlet 123 extends through the shell assembly 107 and the mounting base 154, and communicates with the foaming space 11. During the foaming process, the foaming agent filling head 2 extends from inlet 121 into door 101 and extends from outlet 123 into the foaming space 11 to fill the foaming space 11 with foaming agent.

[0086] In a specific implementation, refer to Figure 3 and Figure 4 The frame 14 has an inlet 121 at the position corresponding to the mounting base 154, forming a foam injection hole 12. The mounting base 154 has an inner hole 122 that penetrates the mounting base 154 and is concentric with the inlet 121. One end of the inner hole 122 is connected to the outlet 123, and the other end of the inner hole 122 is concentric with the inlet 121. The foaming agent filling head 2 passes through the inlet 121 and the inner hole 122 successively and finally extends out from the outlet 123, thereby entering the foaming space 11. Therefore, the inlet 121, the inner hole 122, and the outlet 123 can together constitute the foam injection hole 12.

[0087] In a specific implementation, refer to Figure 4 , Figure 7 and Figure 8 The mounting base 154 abuts against the frame 14 on the side facing the frame 14. The mounting base 154 may include a flange 159 adapted to abut against the frame 14. The inner side of the flange 159 has a sealing ring 18 to seal the gap between the flange 159 and the frame 14, preventing foaming agent from entering between the mounting base 154 and the frame 14. The inner side of the flange 159 refers to the side abutting against the frame 14.

[0088] The hollow portion of the sealing ring 18 exposes the foam injection hole 12, and the foaming agent filling head 2 can extend into the foam injection hole 12 from the hollow portion of the sealing ring 18, and then into the foaming space 11.

[0089] Furthermore, the sealing ring 18 is adapted to close the gap between the side frame 143 and the rear panel 132, and to close the gap between the flange 159 and the side frame 143.

[0090] For example, the sealing ring 18 can be made of an elastic material and deformed by the frame 14. Since the frame 14 and the rear panel 132 are usually joined by a tight fit, gaps are inevitable. Therefore, the sealing ring 18 is suitable for preventing the foaming agent that may accidentally overflow from the foaming injection hole 12 from leaking into the gap between the frame 14 and the rear panel 132.

[0091] For example, a limiting groove can be provided on the side of the flange 159 that contacts the frame 14, a part of the sealing ring 18 is embedded in the limiting groove, and the remaining part protrudes from the outer surface and is squeezed and deformed by the frame 14 during assembly.

[0092] A sealing structure 15 for enclosing the foaming space 11 can be provided in a mounting base 154 mounted on the rear panel 132. Specifically, the sealing structure 15 may include a first valve portion 152 mounted on the mounting base 154 facing the inside of the foaming space 11 to block most of the foaming agent inside the foaming space 11. The inside of the mounting base 154 facing the foaming space 11 may refer to the second surface 156b of the main body 156, such as... Figure 5 As shown.

[0093] In other words, reference Figures 6 to 8 The first valve 152 can be located inside the outlet 123 to confine the foaming agent within the foaming space 11 as much as possible. Here, the inside of the outlet 123 refers to the side of the outlet 123 facing the foaming space 11.

[0094] Furthermore, the mounting base 154 is located on the rear panel 132, and after the door 101 is assembled, the mounting base 154 is enclosed inside the door 101 by the rear panel 132 and the frame 14, and is basically invisible to the outside.

[0095] In one embodiment, the sealing structure 15 may include at least two valves that are distributed adjacently along the depth direction of the foam injection hole 12 and are respectively used to close the foam injection hole 12 after the foaming agent is injected into the foaming space 11, so as to further prevent foam leakage.

[0096] Therefore, leakage of the refrigeration appliance 1 after the foaming agent is injected can be effectively avoided. Specifically, at least two valve sections distributed adjacent to each other along the direction of foaming agent injection can form multiple anti-leakage barriers, making it possible to virtually eliminate foaming agent leakage. For the refrigeration appliance 1 with an ultra-thin door structure, the foaming density near the foaming injection hole 12 is relatively high due to the injection of foaming agent into the narrow side frame 143. This embodiment is particularly suitable for this scenario and can effectively prevent foaming agent leakage.

[0097] The sealing structure according to one embodiment is described in detail below with reference to the accompanying drawings.

[0098] Figure 4 yes Figure 3 A magnified view of a portion of region B in the middle; Figure 5 This is a schematic diagram of the assembly of the first valve part and the housing according to an embodiment of the present invention; Figure 6 yes Figure 5 A sectional view along the CC direction; Figure 7 yes Figure 1 A cross-sectional view along the DD direction of the area where the foam injection hole of the door is located. Figure 8 yes Figure 7 The diagram shows the structure of the area during the foaming process. To more clearly illustrate the specific structure of the sealing structure 15 described in this embodiment, Figure 4 Only the exploded view of the sealing structure 15 is shown.

[0099] In one specific implementation, at least two valve sections are located along the depth direction of the foam injection hole 12 (e.g., Figure 4 and Figure 7 The x-direction (shown) is spaced out.

[0100] For example, the at least two valve portions may include a first valve portion 152 and a second valve portion 153. (See reference) Figure 7 Along the x-direction, there is a gap between the first valve section 152 and the second valve section 153 to provide sufficient operating space for each valve section. Furthermore, the gap between adjacent valve sections can also provide segmented pressure buffer space, gradually diluting the foaming density near the foaming injection hole 12. The closer to the foaming injection hole 12 inside the foaming space 11, the smaller the pressure generated by the foaming agent, until the pressure at the foaming injection hole 12 approaches zero.

[0101] In one specific implementation, the first valve section 152 may be located inside the outlet 123.

[0102] In one embodiment, the second valve 153 may be located between the inlet 121 and the outlet 123 to prevent the foaming agent from leaking into the inlet 121 during the foaming process. For example, the inner side of the inlet 121 may only have the second valve 153 as a sealing structure to ensure that there is no foaming agent leakage problem on the outside of the inlet 121.

[0103] In one embodiment, the first valve portion 152 is located inside the outlet 123, and the second valve portion 153 may be located between the inlet 121 and the outlet 123. Thus, the first valve portion 152 forms a first barrier to prevent the foaming agent from leaking from the outlet 123, while the second valve portion 153 forms a second barrier to prevent the foaming agent from overflowing from the outlet 123 after passing through the first valve portion 152.

[0104] In one specific implementation, during the foaming process, the first valve portion 152 can be adapted to open the entire area of ​​the foam injection hole 12, while the second valve portion 153 can be adapted to open a portion of the foam injection hole 12. For example, the second valve portion 153 is closer to the foam injection hole 12 than the first valve portion 152. This ensures, on the one hand, that the foaming agent is smoothly injected into the foaming space 11; on the other hand, the second valve portion 153 only opens a partial area of ​​the foam injection hole 12, while the other areas remain closed to prevent foaming agent leakage from the first valve portion 152.

[0105] For example, the second valve portion 153 can be adapted to open the central region of the foaming injection hole 12. When injecting the foaming agent, the foaming filling head 2 (e.g., under the restriction of the openable area of ​​the second valve portion 153) can be used to inject the foaming agent. Figure 8 (As shown) It can extend into the foaming space 11 and inject foaming agent basically along the central area of ​​the foam injection hole 12.

[0106] In one specific implementation, at least two of the above valve sections can be one-way valves.

[0107] For example, the valve section may include a valve plate adapted to be opened by the foaming agent filling head 2, which can quickly return to the closed position after the foaming agent filling head 2 is withdrawn to close the foaming injection hole 12. This provides a better sealing effect and prevents foaming agent leakage from the foaming injection hole 12.

[0108] In one specific implementation, at least one of the at least two valve sections may be made of a different material than the other valve sections in order to achieve a better sealing and leak-proof effect.

[0109] by Figure 7 Taking the first valve section 152 and the second valve section 153 shown as examples, the inner first valve section 152 can be made of a plastic material to bear most of the pressure of the foaming agent. Furthermore, the outer second valve section 153 can be made of an elastic material to utilize its elastic deformation properties to block a small amount of foaming agent that leaks out through the first valve section 152. Here, "inner" refers to the side near the foaming space 11, and "outer" refers to the side near the foaming injection hole 12.

[0110] Along the depth direction of the foam injection hole 12 (e.g.) Figures 6 to 8 (shown in the x direction), the first valve portion 152 may be located inside the second valve portion 153, where inside refers to the side facing the foaming space 11.

[0111] For example, the first valve portion 152 may be located inside the outlet 123, while the second valve portion 153 may be located in the inner hole 122. Thus, the first valve portion 152 may open or close the outlet 123, and the second valve portion 153 may open or close the inner hole 122.

[0112] Thus, the first valve portion 152, made of a non-elastic material, can block most of the pressure of the foaming agent, while the second valve portion 153, made of an elastic material, can be configured to open at least a portion of the foaming injection hole 12 through elastic deformation for foaming agent injection.

[0113] After the foaming agent is injected, the first valve 152 located on the inner side uses its rigidity to block most of the pressure generated during the foaming process, thus providing a first layer of barrier against the foaming agent. Furthermore, the second valve 153 elastically deforms to the closed position after the foaming agent filling head 2 is pulled out, thus cooperating with the first valve 152 to essentially achieve complete barrier against the foaming agent. Since most of the pressure of the foaming agent is blocked by the first valve 152, the pressure on the second valve 153 is not large enough to deform it. Therefore, with the cooperation of the first valve 152 and the second valve 153, it is possible to completely block the foaming agent within the foaming space 11.

[0114] Furthermore, both valve sections are located within the foaming space 11 and are not visible to the outside, resulting in a simple overall appearance and structure for the housing 10.

[0115] In a specific implementation, refer to Figure 4 The mounting base 154 may include a main body 156, which has a first surface 156a and a second surface 156b facing each other, wherein the second surface 156b faces the foaming space 11 and the first surface 156a faces away from the foaming space 11.

[0116] Correspondingly, the opening of the inner hole 122 on the second surface 156b of the main body 156 is the outlet 123.

[0117] The first valve portion 152 can be disposed on the second surface 156b of the main body portion 156, and the second valve portion 153 can be disposed on the first surface 156a of the main body portion 156. Thus, the two valve portions are separated by the main body portion 156, as follows: Figure 7 As shown.

[0118] In one embodiment, at least a portion of the first valve 152 is rotatable relative to the housing 10 before the foaming process to open or close the foaming injection port 12.

[0119] In one embodiment, at least a portion of the second valve 153 is rotatable relative to the housing 10 before the foaming process to open or close the foaming injection port 12.

[0120] Thus, the first valve 152 and the second valve 153 serve as two barriers, opening the foam injection hole 12 when the foaming agent is injected and closing the foam injection hole 12 after the injection is completed to block the injected foaming agent within the foaming space 11.

[0121] In one variation, the housing 10 may include a wall having the foam injection hole 12, with the first valve portion 152 located on one side of the wall and the second valve portion 153 located on the other side. Thus, the first valve portion 152, disposed within the foaming space 11, provides a first layer of barrier against the foaming agent through its rigidity, preventing the denser foaming agent from directly impacting the foam injection hole 12. Furthermore, even if a small amount of foaming agent overflows the foam injection hole 12 due to the obstruction of the first valve portion 152, it will still be blocked by the second valve portion 153, which acts as a second layer of barrier, ensuring that there is virtually no leakage of foaming agent from the outside.

[0122] For example, the wall with the foam injection hole 12 can refer to the frame 14 with the inlet 121. That is, the first valve 152 is located inside the foaming space 11, and the second valve 153 is located on the outer surface of the frame 14.

[0123] For example, the wall with the foam injection hole 12 can refer to the main body 156. Then the first valve part 152 is located on the second surface 156b of the main body 156 and is located in the foaming space 11, and the second valve part 153 is located on the first surface 156a of the main body 156 and is located between the main body 156 and the frame 14.

[0124] In one specific implementation, the first valve portion 152 may include a first fixed portion 161 and a first movable portion 162. The first fixed portion 161 is adapted to be fixed to the main body portion 156, and the first movable portion 162 can move relative to the first fixed portion 161 to open or close the foam injection hole 12.

[0125] For example, refer to Figure 5 and Figure 6 The second surface 156b of the main body 156 may be provided with a slot 157, which has an upward-opening insertion port 157a, where "upward" refers to the direction from the rear panel 132 towards the front panel 133. A first fixing part 161 extends from the insertion port 157a into the slot 157 to fix it to the second surface 156b of the main body 156, thereby fixing the first valve part 152 to the rear panel 132. Thus, the first valve part 152 can be fixed to the rear panel 132 without the need for screws or other additional components, resulting in low manufacturing costs.

[0126] In one specific implementation, the area where the first fixed part 161 and the first movable part 162 are connected may have a notch 163, the size of which is adapted to the size of the slot 157 to facilitate assembly.

[0127] During assembly, the notch 163 is aligned with the slot 157, and then the first valve part 152 is moved downward so that the first fixing part 161 is tightly inserted into the socket 157a, thereby firmly inserting the first fixing part 161 into the slot 157.

[0128] In one specific implementation, the number of slots 157 can be a single one, such as one located in the middle area above the outlet 123. Correspondingly, a notch 163 is provided in the middle position of the first fixing part 161.

[0129] In one variation, the number of card slots 157 can be multiple, such as... Figure 5 Taking two slots 157 as an example. The two slots 157 can be provided at intervals on the second surface 156b of the main body 156. The design of multiple slots 157 helps to prevent the first valve part 152 from rotating on a plane parallel to the second surface 156b of the main body 156.

[0130] In a specific implementation, continue to refer to Figures 4 to 6The first fixed part 161 can be located on one side of the first movable part 162. The first movable part 162, which is fixed on one side, has a large rotation space, which can quickly and to a large extent open and close the foam injection hole 12, facilitating the injection of foaming agent and quickly closing it after injection to play a good barrier role.

[0131] For example, the first fixed part 161 may be located on one side of the first movable part 162 along the rear panel 132 in the direction pointing towards the glass plate 131.

[0132] In one embodiment, the first movable part 162 overlaps with the edge region surrounding the foam injection hole 12 (specifically the inner hole 122). Thus, the first movable part 162 can open or close the entire area of ​​the foam injection hole 12.

[0133] In one specific implementation, the connection between the first fixed part 161 and the first movable part 162 may have a groove 164, and the first movable part 162 rotates relative to the housing 10 about the groove 164 as an axis. Figure 5 The possible placement of the groove 164 is shown only as an example; in practical applications, the length, width, and depth of the groove 164 can be adjusted as needed. The groove 164 is adapted to provide a bending trajectory such that the first movable part 162 rotates along a predetermined trajectory.

[0134] In one embodiment, the groove 164 may be located at one-third to one-quarter of the first valve portion 152 along a first direction, wherein the first direction is the direction in which the first fixed portion 161 points to the first movable portion 162 and is perpendicular to the extending direction of the groove 164. Thus, the first movable portion 162, which rotates along the groove 164, can open and close most of the area of ​​the foam injection hole 12.

[0135] In one specific implementation, the projection of the groove 164 onto the foam injection hole 12 may be located outside the foam injection hole 12 to ensure that the first movable part 162 can open and close the entire area of ​​the foam injection hole 12.

[0136] For example, the first valve section 152 is initially in the position as follows: Figure 7 The foaming agent injection head 2 extends from the foaming injection hole 12 into the foaming space 11 until it abuts against the first valve part 152, indicating the position where the foaming injection hole 12 is closed. As the foaming agent injection head 2 continues to extend into the foaming space 11, the first valve part 152 bends from the groove 164 under the holding force applied by the foaming agent injection head 2. The first movable part 162 rotates about the groove 164 as an axis away from the foaming injection hole 12 to open the foaming injection hole 12, allowing the foaming agent injection head 2 to extend into and communicate with the foaming space 11 to inject the foaming agent into the foaming space 11. Figure 8 As shown.

[0137] After injection, the foaming agent filling head 2 withdraws from the foaming space 11, and the first movable part 162 returns to its original position after the external force applied to the foaming agent filling head 2 is removed. Figure 7 The position shown is used to close the foam injection hole 12 to prevent the foaming agent in the foaming space 11 from overflowing.

[0138] In one specific implementation, the first fixed part 161 and the first movable part 162 may be integrally formed, and the groove 164 may be formed by a scratch on the side of the first valve body 16 opposite to the foam injection hole 12.

[0139] In one embodiment, the second valve portion 153 may include a second fixed portion 171 and a second movable portion 172. The second fixed portion 171 is located at least on a first side of the second movable portion 172, wherein the first side corresponds to the side of the first movable portion 162 that is not connected to the first fixed portion 161. Thus, foaming agent overflowing from the side of the first movable portion 162 that is not connected to the first fixed portion 161 is blocked by the second fixed portion 171, thereby better preventing foaming agent leakage from the foam injection hole 12.

[0140] For example, the first movable part 162 overlaps with the edge region surrounding the inner hole 122. When the foaming density around the inner hole 122 is high, a small amount of foaming agent inevitably leaks into the inner hole 122 from the outlet 123 through the gap between the first movable part 162 and the second surface 156b of the main body 156. Therefore, the edge region surrounding the inner hole 122 can be understood as the first side, and the second fixing part 171 is provided on the first side to block the foaming agent that leaks out from the gap between the first movable part 162 and the second surface 156b of the main body 156.

[0141] In a specific implementation, continue to refer to Figure 4 The second fixing part 171 can be provided around the edge of the second movable part 172. Thus, the second fixing part 171 is provided around the edge region of the inner hole 122 to block the foaming agent from leaking out from the gap between the first valve part 152 and the foaming injection hole 12.

[0142] The second valve 153 may be located in the middle region of the inner bore 122 along the extension direction to prevent the foaming agent from leaking from the outlet 123 to the side frame 143 connected to the mounting base 154.

[0143] For example, continue to refer to Figure 4 The first surface 156a of the main body 156 may have a fixing groove 158, which has an opening for the insertion of a second valve part 153. The second valve part 153 extends into the fixing groove 158 through the opening to be fixed to the mounting base 154.

[0144] The second valve portion 153 may include a handle portion 173 for easy gripping by the user. During assembly, the handle portion 173 is gripped to insert the second valve portion 153 into the fixing groove 158, and the second movable portion 172 is aligned with the position of the foam injection hole 12.

[0145] Furthermore, the projection of the second movable part 172 onto the first valve part 152 can be located in the central region of the first valve part 152, so that when the foaming agent filling head 2 extends into the foaming space 11, it can be held against the central region of the first valve part 152, and the first movable part 162 can be opened without applying a large force.

[0146] In a specific implementation, refer to Figure 4 and Figure 5 The second movable part 172 can be cross-shaped to facilitate the insertion of the foaming agent filling head 2 and to quickly close the foaming injection hole 12 after the foaming agent filling head 2 is pulled out.

[0147] In one specific implementation, the area of ​​the second movable part 172 can be adapted to the size of the foaming agent filling head 2 used for injecting the foaming agent. This ensures that the foaming agent filling head 2 can be smoothly inserted, while also retaining a sufficient number of second fixed parts 171 to maximize the leak-proof effect.

[0148] For example, the first valve section 152 is initially in the position as follows: Figure 7 As shown in the diagram, with the foam injection hole 12 closed, the second valve 153 remains within the fixed groove 158. During the insertion of the foaming agent filling head 2 from the foam injection hole 12 into the foaming space 11, it first contacts the second valve 153. As the foaming agent filling head 2 continues to extend into the foaming space 11, it pushes open the cross-shaped second movable part 172 and continues to extend until it abuts against the first valve 152. Figure 8 As shown.

[0149] As the foaming agent filling head 2 continues to extend into the foaming space 11, the first valve portion 152 bends along the groove 164 under the holding force applied by the foaming agent filling head 2. The first movable portion 162 rotates about the groove 164 as an axis away from the foaming injection hole 12 to open the foaming injection hole 12, allowing the foaming agent filling head 2 to extend into and communicate with the foaming space 11 to inject foaming agent into the foaming space 11. Figure 8 As shown.

[0150] After injection, the foaming agent filling head 2 withdraws from the foaming space 11, and the first movable part 162 returns to its original position after the external force applied to the foaming agent filling head 2 is removed. Figure 7 The position shown is used to close the foam injection hole 12 to prevent the foaming agent in the foaming space 11 from overflowing.

[0151] Furthermore, after the foaming agent filling head 2 is withdrawn, the second movable part 172 of the second valve part 153, which is made of elastic material, automatically returns to its original position. Figure 7 The closed position shown is used to close the foam injection hole 12.

[0152] In one variation, the second movable part 172 can be in the shape of a straight line, a cross shape, a star shape, etc.

[0153] In one specific implementation, the area of ​​the first movable part 162 can be larger than the area of ​​the second movable part 172. Therefore, the area where the first valve part 152 can open the foam injection hole 12 is larger than the area where the second valve part 153 can open the foam injection hole 12. This ensures that the foaming agent is smoothly injected into the foaming space while also allowing for the targeted installation of multiple barriers to prevent leakage in areas prone to leakage.

[0154] For example, the area of ​​the first movable part 162 is larger than the bottom area of ​​the foam injection hole 12, while the area of ​​the second movable part 172 is smaller than the bottom area of ​​the foam injection hole 12.

[0155] In one specific embodiment, the projection of the first movable part 162 is larger than the projection of the foam injection hole 12 and completely covers the foam injection hole 12, while the projection of the second movable part 172 is located inside the foam injection hole 12 and smaller than the foam injection hole 12.

[0156] Therefore, the first valve 152 can completely open or close the entire foam injection hole 12, preventing most of the foaming agent leakage after injection by closing the entire foam injection hole 12. The second movable part 172 is concentrated in a small area inside the foam injection hole 12. On the one hand, it ensures that the foaming agent filling head 2 can be smoothly inserted to inject the foaming agent. On the other hand, the other immovable parts of the second valve 153, excluding the movable part, reinforce the first valve 152, preventing foaming agent leakage around the edge of the foam injection hole 12.

[0157] In a specific implementation, refer to Figure 7 The main body 156 located between the first valve section 152 and the second valve section 153 can form a stop section 165. By providing the stop section 165 between the foaming injection hole 12 and the first valve section 152, the first valve section 152 can be restricted to the position where the foaming injection hole 12 is closed after the foaming process is completed.

[0158] Specifically, the first movable part 162 may be pushed in the opposite direction by the injected foaming agent to widen the gap between it and the inner wall of the housing 10. Therefore, the stop part 165 is adapted to limit the reverse movement of the first movable part 162 to prevent the foaming agent from leaking out of the first valve part 152. Furthermore, the stop part 165 can be adapted to restrict the first valve part 152 to a position where it is parallel to the second valve part 153, so as to prevent the first movable part 162 from affecting the sealing performance of the second valve part 153.

[0159] For example, after the foaming agent injection is completed, the first movable part 162 moves away from the foaming agent filling head 2 as the holding force is removed and the foaming agent is squeezed. Figure 8 The position shown is towards Figure 7 The movement proceeds to the indicated position. Upon reaching... Figure 7 After reaching the indicated position, the first movable part 162 and the second surface 156b of the main body part 156 are tightly abutted to prevent the foaming agent from seeping out of the foaming injection hole 12.

[0160] In a typical application scenario, when injecting foaming material into the door body, refer to Figure 8 The cross groove of the second valve section 153 opens, and the first valve section 152 is pushed open and flipped up by the foaming agent filling head 2. When the filling is finished, the foaming agent filling head 2 retracts, and the first movable part 162 of the first valve section 152 returns to its original position under elastic deformation. Figure 7 At the indicated location, a first layer of barrier is formed for the foaming agent. The cross notch of the second valve 153 closes simultaneously to cooperate with the first valve 152 to completely block the foaming agent inside the door 101. The sealing ring 18 is adapted to block a portion of the foaming agent that comes out with the foaming agent filling head 2.

[0161] In this scenario, the foam injection hole 12 is located on the side frame 143 corresponding to the second vertical segment 114 and closer to the lower horizontal segment 112. After the foaming agent is injected, it flows in two streams and converges in the upper horizontal segment 111 to achieve single-hole closed-mold foaming. Furthermore, although the foam density around the foam injection hole 12 of this door structure is very high, approximately 1.5-2 times that of a normal door, the sealing structure 15 described in this embodiment, through the design of multiple barrier layers, ensures that the foaming agent is still essentially blocked within the foaming space 11. There is virtually no leakage of foaming agent outside the foam injection hole 12.

[0162] In one variation, the first valve portion 152 may be made of a brittle material and is hinged to the second surface 156b of the main body portion 156 and can rotate toward or away from the second surface 156b to open or close the foam injection hole 12.

[0163] Furthermore, the hinge point can be equipped with a reset mechanism, such as a torsion spring. This improves the overall pressure resistance of the first valve section 152, enabling it to better withstand the pressure of the foaming agent.

[0164] In one variation, the second valve portion 153 can be constructed from a combination of various materials. For example, the second movable portion 172 can be made of an elastic material, while the second fixed portion 171 can be made of other materials such as plastic or metal. This ensures that the second movable portion 172 is movable enough to allow the foaming agent filling head 2 to pass through, while also improving the structural strength of the second fixed portion 171. By ensuring that the second fixed portion 171 fits tightly against the inner wall of the housing 10, a good leak-proof effect is achieved.

[0165] In one specific implementation, the sealing structure 15 described in this embodiment can also be applied to other parts of the door 101, or other parts of the housing 10 of the refrigeration appliance 1, such as the box 102.

[0166] For example, the housing 102 can also be filled with a foaming agent to form a heat insulation material. In this case, a sealing structure 15 can also be set near the foaming injection hole of the housing 102 to prevent leakage.

[0167] In a specific implementation, continue to refer to Figure 3 Along the height direction of the refrigeration appliance 1, the frame 14 on the upper and lower sides of the panel assembly 13 may have a rotating shaft 139. The door 101 is hinged to the front of the cabinet 102 via the rotating shaft 139 to open or close the storage space 103.

[0168] In one specific implementation, the rotation axis 139 can be located on the wider side frame 14.

[0169] In one specific implementation, a leak-proof structure may be provided around the rear panel 132 to prevent the foaming agent from leaking out from the gap between the rear panel 132 and the frame 14.

[0170] Although in the above embodiment, the sealing structure 15 with dual valves is provided on the door 101 with the U-shaped foam space 11, it should be understood that the present invention should not be limited thereto. The sealing structure 15 with dual valves described above can also be applied to foam spaces 11 with other shapes, for example, it can be applied to the cabinet of a refrigeration appliance or the door of other types of refrigeration appliances.

[0171] Although in the above embodiment, door 101 is located in front of main door 105, it should be understood that the features of door 101 described in the embodiments of the present invention can also be applied to the door for closing storage room 103 inside box 102.

[0172] Although in the above embodiments, door 101 is connected to main door 105 or box 102 by hinges, the relevant features of 101 in the embodiments of the present invention can also be applied to doors that can be pulled out like drawers.

[0173] Although specific embodiments have been described above, these embodiments are not intended to limit the scope of this disclosure, even when only a single embodiment is described with respect to a particular feature. The examples of features provided in this disclosure are intended to be illustrative and not limiting, unless otherwise stated. In practice, one or more technical features of the dependent claims may be combined with technical features of the independent claims, and technical features from the respective independent claims may be combined in any suitable manner rather than solely by the specific combinations listed in the claims.

[0174] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A refrigeration appliance (1), comprising: The housing (10) has a foaming space (11) adapted to receive a foaming agent in a foaming process to fill the foaming space with insulating material; Foaming injection hole (12) for injecting the foaming agent into the foaming space (11); Its characteristic is that it further includes: A sealing structure (15) includes at least two valve portions, which are distributed adjacently along the depth direction of the foam injection hole (12) and spaced apart along the depth direction of the foam injection hole (12), respectively used to close the foam injection hole (12) after the foaming agent is injected into the foaming space (11); the at least two valve portions include a first valve portion (152) made of a non-elastic material and a second valve portion (153) made of an elastic material. The first valve part (152) includes a first fixed part (161) and a first movable part (162), the first fixed part (161) being located on one side of the first movable part (162); the first movable part (162) overlapping with the edge region surrounding the foam injection hole (12); The second valve part (153) includes a second fixed part (171) and a second movable part (172). The second fixed part (171) is located at least on a first side of the second movable part (172), wherein the first side corresponds to the side of the first movable part (162) that is not connected to the first fixed part (161); the second fixed part (171) is disposed around the edge of the second movable part (172).

2. The refrigeration appliance (1) according to claim 1, characterized in that, The foaming injection hole (12) includes an inlet (121) and an outlet (123), the outlet (123) facing the foaming space (11), the inlet (121) being located on the surface of the housing (10); the first valve (152) being located inside the outlet (123), and / or the second valve (153) being located between the inlet (121) and the outlet (123).

3. The refrigeration appliance (1) according to claim 1, characterized in that, The at least two valve sections are mounted on the same mounting base (154).

4. The refrigeration appliance (1) according to claim 2, characterized in that, The at least two valve sections are mounted on the same mounting base (154).

5. The refrigeration appliance (1) according to claim 1, characterized in that, In the foaming process, the first valve (152) is adapted to open the entire area of ​​the foaming injection hole (12), and the second valve (153) is adapted to open a portion of the foaming injection hole (12).

6. The refrigeration appliance (1) according to claim 2, characterized in that, In the foaming process, the first valve (152) is adapted to open the entire area of ​​the foaming injection hole (12), and the second valve (153) is adapted to open a portion of the foaming injection hole (12).

7. The refrigeration appliance (1) according to claim 3, characterized in that, In the foaming process, the first valve (152) is adapted to open the entire area of ​​the foaming injection hole (12), and the second valve (153) is adapted to open a portion of the foaming injection hole (12).

8. The refrigeration appliance (1) according to claim 4, characterized in that, In the foaming process, the first valve (152) is adapted to open the entire area of ​​the foaming injection hole (12), and the second valve (153) is adapted to open a portion of the foaming injection hole (12).

9. The refrigeration appliance (1) according to claim 1, characterized in that, The first valve (152) is located inside the second valve (153), wherein the inside refers to the side facing the foaming space (11).

10. The refrigeration appliance (1) according to any one of claims 1-9, characterized in that, At least a portion of the first valve (152) is rotatable relative to the housing (10) before the foaming process to open or close the foaming injection hole (12), and at least a portion of the second valve (153) is rotatable relative to the housing (10) before the foaming process to open or close the foaming injection hole (12).

11. The refrigeration appliance (1) according to claim 10, characterized in that, The area of ​​the first movable part (162) of the first valve part (152) is larger than the area of ​​the second movable part (172) of the second valve part (153).

12. The refrigeration appliance (1) according to claim 10, characterized in that, The projection of the first movable part (162) of the first valve part (152) is larger than the projection of the foam injection hole (12) and completely covers the foam injection hole (12). The projection of the second movable part (172) of the second valve part (153) is located inside the foam injection hole (12) and smaller than the foam injection hole (12).

13. The refrigeration appliance (1) according to claim 10, characterized in that, The connection between the first fixed part (161) and the first movable part (162) has a groove (164), and the first movable part (162) rotates relative to the housing (10) about the groove (164) as an axis.

14. The refrigeration appliance (1) according to claim 10, characterized in that, The second movable part (172) is in the shape of a straight line, a cross, or a star.

15. The refrigeration appliance (1) according to claim 10, characterized in that, The area of ​​the second movable part (172) is adapted to the size of the foaming agent filling head (2) for injecting foaming agent.

16. The refrigeration appliance (1) according to claim 10, characterized in that, Also includes: A stop portion (165) is disposed between the foaming injection hole (12) and the first valve portion (152), the stop portion (165) being used to restrict the first valve portion (152) to a position where the foaming injection hole (12) is closed after the foaming process.

17. The refrigeration appliance (1) according to any one of claims 1-9, characterized in that, The housing (10) includes a first component and a second component connected together, the foam injection hole (12) extending through the first component and the second component, and the sealing structure (15) includes a sealing ring (18) located between the first component and the second component, the sealing ring (18) being disposed around the inlet (121) of the foam injection hole (12) located in the first component.

18. The refrigeration appliance (1) according to claim 10, characterized in that, The housing (10) includes a first component and a second component connected together, the foam injection hole (12) extending through the first component and the second component, and the sealing structure (15) includes a sealing ring (18) located between the first component and the second component, the sealing ring (18) being disposed around the inlet (121) of the foam injection hole (12) located in the first component.

19. The refrigeration appliance (1) according to any one of claims 1-9, characterized in that, The housing (10) includes a door (101), the door (101) includes a panel assembly (13) and a shell assembly (107) disposed around at least one edge of the panel assembly (13), the panel assembly (13) includes at least two spaced glass plates (131), the foaming space (11) is located between the shell assembly (107) and the panel assembly (13), and the foaming injection hole (12) is located in the shell assembly (107).

20. The refrigeration appliance (1) according to claim 10, characterized in that, The housing (10) includes a door (101), the door (101) includes a panel assembly (13) and a shell assembly (107) disposed around at least one edge of the panel assembly (13), the panel assembly (13) includes at least two spaced glass plates (131), the foaming space (11) is located between the shell assembly (107) and the panel assembly (13), and the foaming injection hole (12) is located in the shell assembly (107).

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