A refrigerator
By designing handle assembly on the refrigerator door, the belt strips eliminate negative pressure when the handle is under pressure, the problem of hard work in opening the door of a single-door direct-cooled refrigerator is solved, achieving smooth door opening, energy saving and frost prevention effects.
Patent Information
- Application Number
- CN202111471489.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-12-02
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2041-12-02
AI Technical Summary
The existing single-door direct-cooled refrigerator is difficult to open the door or the refrigerator is displaced due to negative pressure caused by refrigeration after the user closes the door, which makes the user experience poor.
A handle assembly is designed, including a mounting base, handle, tape and reset member. The tape strap is attached to the door seal. When the handle is subjected to force, the door seal is deformed to form a gap to eliminate negative pressure, and the handle remains sealed when it is not subjected to force.
Eliminate negative pressure when the user opens the door, reduce the effort required to open the door, improve user experience, avoid air conditioning leakage and energy consumption, and prevent internal frost and blockage.
Smart Images

Figure CN116222071B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of refrigeration equipment, in particular to a refrigerator. Background Art
[0002] Single-door direct-cooling refrigerators typically lack drain holes, creating a sealed interior. When the user closes the door, the refrigerator activates cooling, causing the air inside to cool and contract, creating negative pressure. This negative pressure creates a significant door-opening force, making it difficult for the user to open the door. Furthermore, this force may exceed the European standard of 70N. For lighter refrigerators, this can result in the refrigerator being pulled forward without opening, resulting in a poor user experience.
[0003] Therefore, the existing technology is in urgent need of improvement. Summary of the Invention
[0004] The purpose of the present invention is to provide a refrigerator to solve the technical problem of the prior art refrigerator that when the user closes the door, the refrigeration inside the box generates negative pressure, which makes it difficult for the user to open the door or causes the refrigerator to shift when opening the door.
[0005] In order to achieve the above object, the present invention provides a refrigerator comprising:
[0006] a box body defining a refrigeration chamber therein;
[0007] A box door, one side of which is rotatably connected to the box body, and an inner side of which is provided with a door seal that cooperates with the box body for sealing;
[0008] Among them, also include:
[0009] A handle assembly, comprising a mounting base, a handle, a strap and a reset member;
[0010] The mounting seat is provided on the other side of the door, and the handle is movably connected to the mounting seat; the reset member is provided at the mounting seat and / or the handle, and is used to make the handle tend to move toward the inside of the door;
[0011] One end of the strap is provided on the inner side of the door, and the other end is connected to the handle, so that the strap is attached to the door seal;
[0012] When the handle is not under force, the strip is attached to the door seal, and the door seal and the box body are kept sealed;
[0013] When the handle is subjected to tension, the handle overcomes the restoring force of the reset member and moves toward the outside of the box door, and drives the belt piece to squeeze the door seal, so that the door seal is deformed to form a gap between the door seal and the box body.
[0014] In some embodiments of the present application, the strip is vertically attached to the door seal.
[0015] In some embodiments of the present application, a sliding cavity is provided in the mounting seat, and two sides of the sliding cavity respectively have a first opening and a second opening;
[0016] A neck is provided at a predetermined position of the handle, which is movably inserted into the first opening, and the neck and the neck cooperate to limit the movable travel of the handle relative to the mounting seat;
[0017] The belt piece passes through the second opening into the sliding cavity and is connected with the handle.
[0018] In some embodiments of the present application, the mounting base includes an inner shell and an outer shell;
[0019] The inner side surface of the inner shell is provided with a first mounting portion, and the inner side surface of the outer shell is correspondingly provided with a second mounting portion that is covered with the first mounting portion. When the inner shell and the outer shell are covered, the sliding cavity, the first opening and the second opening are formed.
[0020] In some embodiments of the present application, the handle includes an end portion, a neck portion, and a handle portion connected in sequence;
[0021] The end portion is located in the sliding cavity, and a hollow area is provided at a position corresponding to the first mounting portion. A first limiting portion is provided on the side of the hollow area facing the belt piece;
[0022] A second limiting portion is correspondingly provided on the first mounting portion, and the reset member is provided between the first limiting portion and the second limiting portion, and is used to make the handle have a tendency to move toward the inside of the box door.
[0023] In some embodiments of the present application, the first limiting portion is a groove, and the second limiting portion is a convex column;
[0024] The reset member is a spring, one end of which abuts against the groove and the other end is sleeved on the convex column.
[0025] In some embodiments of the present application, the handle assembly further includes a base, which is provided on the inner side surface of the box door; the two ends of the strap are detachably connected to the base and the handle respectively.
[0026] In some embodiments of the present application, the base and the handle are respectively provided with a first clamping portion, and both ends of the belt piece are respectively provided with a second clamping portion for cooperating with the first clamping portion to form a clamping connection.
[0027] In some embodiments of the present application, the first clamping portion is a receiving cavity with a side seam provided on a side of the base or the handle, and the receiving cavity and the second opening are both structures with an open upper end and a closed lower end;
[0028] The second clamping portion is a clamping strip that matches the accommodating cavity, and is clamped into the accommodating cavity from the upper end opening of the accommodating cavity or the second opening, so that the belt piece is clamped into the side seam.
[0029] In some embodiments of the present application, the handle portion is in a "C" shape, with the neck and the end portion connected to its two ends respectively, and each end portion is connected to one of the straps.
[0030] Compared with the prior art, the refrigerator according to the embodiment of the present invention has the following advantages:
[0031] First, the handle assembly of the present application has a simple and ingenious structure, which can eliminate negative pressure the moment the user applies force to open the door. The required door-opening force is very small, allowing the user to open the door smoothly and effortlessly in one go, greatly improving the user experience and enhancing the market competitiveness of the product.
[0032] Second, the handle assembly of the present application does not affect the sealing of the door when not under tension, and does not cause leakage of cold air, thereby effectively avoiding energy waste.
[0033] Third, in the process of eliminating negative pressure, no hot air passes through the interior of the handle assembly of the present application, and no internal frost blockage will occur, which will affect normal use. BRIEF DESCRIPTION OF THE DRAWINGS
[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0035] Figure 1 is a schematic diagram of a partial structure of a refrigerator according to an embodiment of the present invention;
[0036] Figure 2 It is a structural diagram of the door and handle assembly;
[0037] Figure 3 1. It is a structural diagram of the handle assembly;
[0038] Figure 4 It is a structural diagram of the mounting base, handle and reset piece;
[0039] Figure 5 It is a schematic diagram of the partial explosion structure of the mounting base, handle and reset piece;
[0040] Figure 6 It is a schematic diagram of the partial structure of the handle;
[0041] Figure 7It is a structural diagram of the inner shell;
[0042] Figure 8 It is a structural diagram of the shell;
[0043] Figure 9 It is a structural diagram of the base;
[0044] Figure 10 It is a structural diagram of the strip;
[0045] Figure 11 This is a schematic diagram of the state of the handle assembly when the handle is not under force;
[0046] Figure 12 This is a schematic diagram of the state of the handle assembly when the handle is under tension;
[0047] In the figure, 100, box body; 200, box door; 210, door seal; 300, handle assembly; 310, mounting seat; 311, inner shell; 3111, first mounting portion; 3112, rib; 3113, second limiting portion; 312, outer shell; 3121, second mounting portion; 3122, elastic hook; 320, handle; 321, end portion; 3211, first limiting portion; 322, neck; 323, handle portion; 330, belt piece; 331, clip; 340, reset member; 350, base; 351, side seam; 352, accommodating cavity; 353, side panel. DETAILED DESCRIPTION
[0048] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0049] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.
[0050] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.
[0051] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.
[0052] like Figure 1 12 shows a refrigerator according to a preferred embodiment of the present invention, which mainly includes a cabinet body 100, a cabinet door 200 and a handle assembly 300.
[0053] Specifically, a refrigeration chamber (such as a freezer chamber) is defined in the box body 100 , and one side of the box door 200 is rotatably connected to the box body 100 through a hinge assembly, and its inner side is provided with a door seal 210 that cooperates with the box body 100 to seal.
[0054] The handle assembly 300 includes a mounting base 310 , a handle 320 , a strap 330 , and a restoring member 340 .
[0055] A mounting base 310 is located on the side of the door 200 opposite the hinge assembly, and a handle 320 is movably connected to the mounting base 310. A reset member 340 is located on the mounting base 310 and / or the handle 320 to cause the handle 320 to move inward from the door 200. One end of a strap 330 is located on the inner side of the door 200, and the other end is connected to the handle 320, allowing the strap 330 to span across the door seal 210.
[0056] The door seal 210 of the prior art is generally a deformable hollow sealing strip that can still maintain a seal with the box body 100 even in a slightly deformed state. Therefore, based on the above description, the skilled person should understand that the characteristics of the strip 330 described in this application should meet the following requirements: when the strip 330 is attached to the door seal 210, it will not cause the hollow sealing strip to deform to the point where a gap is created between the strip and the box body 100. Specifically, the strip 330 described in this application is preferably a soft, thin strip with high toughness, such as a fiber tape, so that the strip 330 can withstand multiple stretching. The thickness of the strip 330 is preferably between 0.1 mm and 0.3 mm, so that when the strip 330 is only attached to the door seal 210, it will not affect the sealing performance of the door seal 210.
[0057] In actual use, when there is no external force pulling the handle 320 (the handle 320 is not under force), Figure 11 As shown, the restoring force of the reset member 340 causes the handle 320 to be in the initial state. The handle 320 exerts no pulling force or very little pulling force on the strip 330, so that the strip 330 is attached to the door seal 210, and the hollow sealing strip will not be deformed to produce a gap between the door seal 210 and the box body 100. The door seal 210 and the box body 100 remain sealed.
[0058] When the user applies force to pull the handle 320 toward the outside of the door 200 (the handle 320 is under tension), Figure 12 As shown, the handle 320 overcomes the restoring force of the reset member 340 and moves toward the outside of the door 200, driving the strap 330 to squeeze the door seal 210, causing the door seal 210 to deform to form a gap between the door seal 210 and the cabinet body 100. This allows air outside the cabinet to enter the cabinet through the gap, thereby eliminating negative pressure. At the same time, because the user continuously applies force when opening the door, once the negative pressure is eliminated, the door 200 can be opened.
[0059] Some existing products have exhaust valves designed on the door to eliminate negative pressure. However, these valves are often left open, causing cold air to continuously leak out of the refrigerator, wasting energy. Furthermore, in freezers, due to the low temperature inside the refrigerator, hot air from outside can easily form frost around the exhaust valve opening when it enters.
[0060] The refrigerator proposed in the above embodiment has at least the following advantages compared with the prior art:
[0061] First, the handle assembly 300 of the present application has a simple and ingenious structure, capable of eliminating negative pressure the moment a user applies force to open the door, requiring minimal door-opening force. It should be understood that the process from eliminating negative pressure to opening the door 200 is continuous and brief, and the force required to pull the strap 330 until the door seal 210 deforms to form a gap with the box body 100 is minimal. Therefore, with the handle assembly 300 of the present application, the user can open the door smoothly and effortlessly, significantly improving the user experience and enhancing the product's market competitiveness.
[0062] Second, the handle assembly 300 of the present application does not affect the sealing of the door 200 when not under tension, and does not cause leakage of cold air, thereby effectively avoiding energy waste.
[0063] Third, in the process of eliminating negative pressure, no hot air passes through the interior of the handle assembly 300 of the present application, and no internal frost blockage will occur, which will affect normal use.
[0064] In some embodiments of this application, see Figure 2 The strip 330 is vertically attached to the door seal 210. The design of this embodiment can greatly reduce the force required to pull the strip 330 to deform the door seal 210 to form a gap between the door seal 210 and the box body 100, thereby further reducing the pulling force required by the user to open the door.
[0065] In some embodiments of this application, see Figure 5 -8, the mounting base 310 includes an inner shell 311 and an outer shell 312. The inner side surface of the inner shell 311 is provided with a first mounting portion 3111, and the inner side surface of the outer shell 312 is correspondingly provided with a second mounting portion 3121 that is connected to the first mounting portion 3111. When the inner shell 311 and the outer shell 312 are covered, a sliding cavity is formed with a first opening and a second opening on both sides, respectively. The first opening faces the outside of the door 200, and the second opening faces the inside of the door 200. Preferably, see Figure 6 The first mounting portion 3111 is a screw seat with a through hole, and a rib 3112 is provided on the outer wall thereof. Figure 7 The second mounting portion 3121 is also a screw seat with a through hole, and a circle of elastic hooks 3122 are provided on the top. When the first mounting portion 3111 and the second mounting portion 3121 are aligned and pressed, the elastic hooks 3122 are deformed and clamped to the rib 3112, so that the inner shell 311 can form a covering connection with the outer shell 312.
[0066] See also Figure 3-7, the handle 320 includes a terminal head 321, a neck 322, and a handle portion 323, which are connected in sequence. The handle portion 323 is C-shaped, with the neck 322 and terminal head 321 connected at each end. The neck 322 is movably inserted into the first opening, and the terminal head 321 is located in the sliding cavity. The strap 330 passes through the sliding cavity from the second opening and connects to the terminal head 321. The terminal head 321 and the handle portion 323 are both larger than the first opening. The neck 322 cooperates with the first opening to limit the movable range of the handle 320 relative to the mounting base 310. See Figure 11 In this embodiment, the movable stroke of the handle 320 is L. A hollow area is provided at the position of the end portion 321 corresponding to the first mounting portion 3111, and the mounting screw can pass through the first mounting portion 3111 and the second mounting portion 3121 to install the mounting base 310 on the door 200. A first limiting portion 3211 is provided on the side of the hollow area facing the strip 330, which is preferably a groove. A second limiting portion 3113 is correspondingly provided on the outer wall of the first mounting portion 3111 facing the first limiting portion 3211, which is preferably a convex column. The reset member 340 is preferably a spring, one end of which abuts the groove, and the other end is sleeved on the convex column, located between the first limiting portion 3211 and the second limiting portion 3113, and is used to make the handle 320 have a tendency to move toward the inside of the door 200.
[0067] In the above embodiment, the structural coordination between the mounting base 310 and the handle 320 ensures a stable and reliable sliding connection therebetween, and has sliding limit and automatic reset functions, thereby ensuring the normal operation of the handle assembly 300.
[0068] In some embodiments of this application, see Figure 1 -10, the handle assembly 300 further includes a base 350, which is disposed on the inner side of the door 200, and the two ends of the strip 330 are detachably connected to the base 350 and the handle 320 respectively.
[0069] See also Figure 9 and Figure 10 , a first clamping portion is respectively provided on the opposite side surfaces of the base 350 and the handle 320, which is preferably a receiving cavity 352 with a side seam 351. The receiving cavity 352 and the second opening are both structures with an upper end open and a lower end closed. The two ends of the strip 330 are respectively provided with a second clamping portion for cooperating with the first clamping portion to form a clamping connection, which is a clamping strip 331 that matches the receiving cavity 352. During installation, the clamping strip 331 is inserted into the receiving cavity 352 from the upper end opening of the receiving cavity 352 or the second opening, so that the strip 330 is clamped into the side seam 351, and the installation is completed. When disassembling, it can be pulled out from the upper end opening. The base 350 is provided with a side panel 353 with a through hole, which is used to be installed on the door 200 by screws.
[0070] In the above embodiment, the strap 330 is detachably connected to the base 350 and the handle 320, which facilitates the user to remove and replace the strap 330. The pull-out snap-on structural design further increases the convenience of operation and effectively improves the user experience.
[0071] During actual assembly, use screws to install the base 350 on the predetermined position on the inner side of the door 200. Then, install the end portion 321 of the handle 320 on the inner shell 311 so that the first mounting portion 3111 is located in the hollow area, and the first limiting portion 3211 (groove) is opposite to the second limiting portion 3113 (protruding column). Then compress the reset member 340 (spring) and place one end into the groove. Release the spring, and the other end rebounds to fit into the protruding column, completing the installation of the spring. Then align the second mounting portion 3121 of the outer shell 312 with the first mounting portion 3111 and press hard to complete the assembly of the mounting base 310, the handle 320 and the reset member 340. Figure 4 Finally, the strip 330 is inserted into the base 350 and the receiving cavity 352 of the end portion 321 , thus completing the assembly of the handle assembly 300 .
[0072] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.
Claims
1. A refrigerator comprising: a box body defining a refrigeration chamber therein; A box door, one side of which is rotatably connected to the box body, and an inner side of which is provided with a door seal that cooperates with the box body for sealing; It is characterized by further comprising: A handle assembly, comprising a mounting base, a handle, a strap and a reset member; The mounting seat is provided on the other side of the door, and the handle is movably connected to the mounting seat; the reset member is provided at the mounting seat and / or the handle, and is used to make the handle tend to move toward the inside of the door; One end of the strap is provided on the inner side of the door, and the other end is connected to the handle, so that the strap is attached to the door seal; When the handle is not under force, the strip is attached to the door seal, and the door seal and the box body are kept sealed; When the handle is subjected to tension, the handle overcomes the restoring force of the reset member and moves toward the outside of the box door, and drives the belt piece to squeeze the door seal, so that the door seal is deformed to form a gap between the door seal and the box body.
2. The refrigerator according to claim 1, wherein: The strip is vertically attached to the door seal.
3. The refrigerator according to claim 1, wherein: A sliding cavity is provided in the mounting seat, and two sides of the sliding cavity are respectively provided with a first opening and a second opening; A neck is provided at a predetermined position of the handle, which is movably inserted into the first opening, and the neck and the neck cooperate to limit the movable travel of the handle relative to the mounting seat; The belt piece passes through the second opening into the sliding cavity and is connected with the handle.
4. The refrigerator according to claim 3, characterized in that The mounting base includes an inner shell and an outer shell; The inner side surface of the inner shell is provided with a first mounting portion, and the inner side surface of the outer shell is correspondingly provided with a second mounting portion that is covered with the first mounting portion. When the inner shell and the outer shell are covered, the sliding cavity, the first opening and the second opening are formed.
5. The refrigerator according to claim 4, characterized in that The handle comprises an end portion, a neck portion and a handle portion connected in sequence; The end portion is located in the sliding cavity, and a hollow area is provided at a position corresponding to the first mounting portion. A first limiting portion is provided on the side of the hollow area facing the belt piece; A second limiting portion is correspondingly provided on the first mounting portion, and the reset member is provided between the first limiting portion and the second limiting portion, and is used to make the handle have a tendency to move toward the inside of the box door.
6. The refrigerator according to claim 5, characterized in that The first limiting portion is a groove, and the second limiting portion is a convex column; The reset member is a spring, one end of which abuts against the groove and the other end is sleeved on the convex column.
7. The refrigerator according to claim 1, wherein The handle assembly further comprises a base, which is arranged on the inner side surface of the box door; the two ends of the belt piece are detachably connected to the base and the handle respectively.
8. The refrigerator according to claim 7, characterized in that The base and the handle are respectively provided with a first clamping portion, and both ends of the belt piece are respectively provided with a second clamping portion for cooperating with the first clamping portion to form a clamping connection.
9. The refrigerator according to claim 8, characterized in that The first clamping portion is a receiving cavity with a side seam provided on the side of the base or the handle, and both the receiving cavity and the side seam are structures with an open upper end and a closed lower end; The second clamping portion is a clamping strip that matches the accommodating cavity, and is clamped into the accommodating cavity from the upper end opening of the accommodating cavity or the side seam, so that the belt piece is clamped into the side seam.
10. The refrigerator according to claim 5, characterized in that The handle portion is in a "C" shape, with the neck portion and the end portion connected to the handle portion at both ends, and each end portion is connected to one of the straps.
Citation Information
Patent Citations
Automatic air pressure balancing door handle and door of low-temperature cabinet
CN105890271A
Power-assisted handle, and refrigerator therewith
WO2021017178A1