refrigerator

Abstract

This invention relates to the field of refrigeration equipment and provides a refrigerator. The refrigerator includes a cabinet; a pair of doors hinged to the cabinet, without a flip beam on the doors, and door sealing components on the mating edges of the doors. When the doors are closed, the door sealing components on one door press against each other, and the door sealing components on both doors are adapted to fit snugly against the cabinet. This refrigerator replaces the traditional flip beam with a coordinated sealing effect of the door sealing components, freeing up storage space in the doors and cabinet, resulting in a more regular internal cavity layout and a significantly improved overall volume ratio, meeting more storage needs of users. The flip beam-free design eliminates the operating noise of the flip mechanism, and combined with the elastic deformation characteristics of the door sealing components, the door opens and closes more quietly and smoothly, enhancing the high-end user experience of the refrigerator; the door sealing components are compatible with ordinary single and double axis hinges, eliminating the need to modify the cabinet structure or replace with special hinges, simplifying the refrigerator structure and reducing production and modification costs.

Description

Technical Field

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

[0002] In traditional French-style refrigerators, the refrigerator compartment is sealed by a flip-up beam between the two refrigerator doors. This method provides a better seal when opening and closing the door, but it limits the utilization of the internal space of the refrigerator door. The flip-up beam needs to flip when opening or closing the refrigerator door, which generates some noise and affects the user experience, especially in families who have high demands for a premium refrigerator experience. Summary of the Invention

[0003] This invention provides a refrigerator that achieves door sealing without a flip beam, eliminating the need for a traditional flip beam and simplifying the refrigerator's structure.

[0004] This invention provides a refrigerator, comprising: Box; A pair of doors are hinged to the housing. The doors do not have a flip beam. Door seal assemblies are provided on the mating edges of the doors. When the doors are closed, the door seal assemblies on one door press against each other, and the door seal assemblies on both doors are adapted to fit against the housing.

[0005] According to one embodiment of the present invention, the door seal assembly includes: The main door seal is located along the height of the door body on the side of the door body facing the box body. A secondary door seal is disposed on one side of a pair of doors that are close to each other, along the height direction of the door body.

[0006] According to one embodiment of the present invention, the cross-section of the main door seal is polygonal along a direction perpendicular to the height of the door body.

[0007] According to one embodiment of the present invention, a thickness reduction zone is formed at the corner position of the main door seal.

[0008] According to one embodiment of the present invention, a plurality of blocks are formed inside the main door seal, and when the door is in the closed state, the blocks are adapted to divide the interior of the main door seal into a plurality of mutually independent closed chambers.

[0009] According to one embodiment of the present invention, the plurality of said blocks abut against each other to form the closed chamber; And / or, The plurality of the aforementioned blocks abut against the inner wall of the main door seal to form the enclosed chamber.

[0010] According to one embodiment of the present invention, along the height direction of the door body, the main door seal is provided with an extrusion plate on the side facing the box body.

[0011] According to one embodiment of the present invention, flexible sealing elements are provided at both ends of the main door seal along the height direction of the door body.

[0012] According to one embodiment of the present invention, a heating element is provided inside the secondary door seal.

[0013] According to one embodiment of the present invention, an isolation member is provided inside the secondary door seal, the isolation member being adapted to divide the secondary door seal into a heating chamber and an isolation chamber, the isolation chamber being disposed close to the door body, and the heating member being disposed in the heating chamber.

[0014] According to one embodiment of the present invention, the main door seal and the secondary door seal are integrally formed.

[0015] The refrigerator provided by the present invention, through the cooperative sealing of the door seal assembly replacing the traditional flip beam, frees up storage space in the door and cabinet: the storage components of the door no longer need to avoid the flip mechanism, shelves can be removed horizontally, the depth of drawers and shelves is increased, bottle frames can be widened to the edge of the door, the internal cavity layout of the cabinet is more regular, and the overall volume ratio is significantly improved, meeting more storage needs of users. The flip beam-free design eliminates the operating noise of the flip mechanism, and combined with the elastic deformation characteristics of the door seal assembly, the door opens and closes more quietly and smoothly, enhancing the high-end user experience of the refrigerator; at the same time, the door seal assembly is compatible with ordinary single and double axis hinges, without the need to modify the cabinet structure or replace with special hinges, and can be directly applied to existing production platforms, simplifying the refrigerator structure and reducing production modification costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic perspective view of the refrigerator provided by the present invention.

[0018] Figure 2 This is a schematic rear view of the door provided by the present invention.

[0019] Figure 3 This is a schematic cross-sectional view of the door sealing assembly provided by the present invention.

[0020] Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle.

[0021] Figure 5 This is a schematic cross-sectional view of the main door seal when the door is in the closed state, as provided by the present invention.

[0022] Figure label: 100. Cabinet; 102. Door; 104. Door seal assembly; 106. Main door seal; 108. Secondary door seal; 110. Thickness reduction zone; 112. Stop block; 114. Enclosed chamber; 116. Extrusion plate; 118. Heating element; 120. Isolation element; 122. Heating chamber; 124. Isolation chamber. Detailed Implementation

[0023] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0024] like Figures 1 to 5 As shown, an embodiment of the present invention provides a refrigerator, comprising: Box 100; A pair of doors 102 are hinged to the housing 100. No flip beam is provided on the doors 102. Door seal assemblies 104 are provided on the mating edges of the doors 102. When the doors 102 are closed, the door seal assemblies 104 on one door 102 press against each other, and the door seal assemblies 104 on both doors 102 are adapted to fit against the housing 100.

[0025] According to the refrigerator provided in this embodiment of the invention, the traditional flip beam is replaced by a common seal of the door seal assembly 104 on both doors 102, thereby freeing up storage space in the doors 102 and the cabinet 100: the storage components of the doors 102 do not need to avoid the flip mechanism, the shelves can be removed horizontally, the depth of drawers and shelves is increased, the bottle frame can be widened to the edge of the doors 102, the internal cavity layout of the cabinet 100 is more regular, and the overall volume ratio is significantly improved, meeting more storage needs of users. By adopting a flip beam-free design, the operating noise of the flip mechanism is eliminated. Combined with the elastic deformation characteristics of the door seal assembly 104, the doors 102 open and close more quietly and smoothly, improving the high-end user experience of the refrigerator; at the same time, the door seal assembly 104 is compatible with ordinary single and double axis hinges, without the need to modify the structure of the cabinet 100 or replace with special hinges, and can be directly applied to existing production platforms, simplifying the refrigerator structure and reducing production modification costs.

[0026] Please continue reading Figures 1 to 5 The refrigerator provided in this embodiment of the invention eliminates the traditional flip beam by using the sealing of the door seal assembly 104 and the design of ordinary single and double axis hinges, thus achieving reliable sealing without the flip beam.

[0027] The cabinet 100 is a heat-insulated and airtight structure, forming a refrigerated chamber inside. The opening edge of the cabinet 100 is rectangular to accommodate the sealing requirements of the door 102. A pair of doors 102 are hinged to both sides of the cabinet 100 via ordinary single and double-axis hinges, allowing rotation around the hinges to open and close the chamber. The two doors 102 are positioned opposite each other, jointly sealing the upper chamber of the cabinet 100. Each door 102 includes a door shell, an inner liner, and storage components. The inner liner and door shell enclose the storage space. Since the flip beam has been eliminated, there is no need to reserve space for the flip mechanism installation in the storage space, thus optimizing the layout of the storage components.

[0028] The door seal assembly 104 is fixedly installed on the mating edge of the door body 102 and is continuously arranged along the height direction of the door body 102. It includes a main door seal 106, a secondary door seal 108, an extrusion plate 116, a flexible sealing element, and heating-related structures, as detailed below: The main door seal 106 is made of elastic material and is located on the side of the door 102 facing the cabinet 100, extending along the height of the door 102. Its cross-section is polygonal (preferably octagonal), with a thickness reduction zone 110 formed at the corners. Multiple baffles 112 are evenly arranged inside. An extrusion plate 116 is fixed to the side of the main door seal 106 facing the cabinet 100. The extrusion plate 116 is a rigid flat plate and is tightly connected to the main door seal 106 by adhesive or bolts to ensure uniform force transmission.

[0029] The secondary door seal 108 is integrally formed with the main door seal 106 and is made of the same material. It is located on the side of a pair of door bodies 102 that are close to each other, and extends along the height direction of the door body 102. Its cross-sectional dimensions are adapted to the mating gap between the two door bodies 102. It is equipped with a heating element 118 and an isolation element 120 inside. The isolation element 120 divides the secondary door seal 108 into a heating chamber 122 and an isolation chamber 124. The isolation chamber 124 is located close to the door body 102, and the heating element 118 is installed in the heating chamber 122.

[0030] When the door 102 is closed, the door sealing assemblies 104 on the two door 102 press against each other and simultaneously fit against the edge of the opening of the box 100, forming a triple seal: The first layer of sealing is the main door seal 106. The extrusion plate 116 is pressed against the box body 100, causing the main door seal 106 to deform. The polygonal cross section is adjusted to fit the opening edge of the box body 100. The internal blocks 112 abut against each other or against the inner wall of the main door seal 106, separating and forming multiple independent closed chambers 114. The second layer of sealing is the secondary door seal 108 seal. The secondary door seals 108 on the two door bodies 102 press against each other to fill the mating gap and form a mating surface seal. The third layer of sealing is the end seal, where a flexible seal plugs the gap at both ends of the door seal to prevent air leakage at the ends.

[0031] The deformation characteristics of the door seal assembly 104 are compatible with the rotation trajectory of the door body 102 of ordinary single and double axis hinges. The polygonal cross section and corner thickness reduction area 110 design of the main door seal 106 reduce the deformation resistance. When the door body 102 is closed, the door seal assembly 104 can be pushed to complete the sealing deformation without additional force, and the automatic closing effect will not be affected by excessive deformation resistance. When the door body 102 is opened, the restoring force of the elastic material drives the door seal assembly 104 to quickly return to the initial state without interfering with the rotation of the door body 102.

[0032] See Figure 3 According to one embodiment of the present invention, the door sealing assembly 104 includes: The main door seal 106 is located along the height of the door body 102 on the side of the door body 102 facing the box body 100. The secondary door seal 108 is located along the height of the door body 102 on one side of a pair of door bodies 102 that are close to each other.

[0033] In one embodiment of the present invention, the main door seal 106 is made of an elastic material and is continuously disposed along the height direction of the door body 102 on the side of the door body 102 facing the box body 100, and its length is perfectly matched with the height of the door body 102. The cross-section of the main door seal 106 is polygonal (preferably octagonal), with a thickness reduction zone 110 formed at the corner position, and a plurality of baffles 112 are uniformly disposed inside, and the baffles 112 are integrally formed with the main door seal 106. An extrusion plate 116 is fixed to the side of the main door seal 106 facing the box body 100. The extrusion plate 116 is a rigid flat plate and is tightly connected to the main door seal 106 by adhesive or bolts to ensure that the main door seal 106 can be uniformly deformed under force when the door body 102 is closed.

[0034] The secondary door seal 108 is also installed along the height of the door body 102, located on the side where the two door bodies 102 are close to each other, adjacent to the main door seal 106 and vertically distributed. The secondary door seal 108 and the main door seal 106 are integrally formed and made of the same elastic material to ensure that their deformation is coordinated. The cross-sectional dimensions of the secondary door seal 108 are adapted to the mating gap of the two door bodies 102. When the door body 102 is closed, the secondary door seals 108 on the two door bodies 102 can fit together to form a sealing mating surface.

[0035] When the door 102 is closed, the main door seal 106 deforms under the pressure of the compression plate 116 and the housing 100, adjusting its polygonal cross-section to fit the edge of the opening of the housing 100. Simultaneously, the secondary door seals 108 on the two doors 102 press against each other, filling the gap between the two doors 102. The main door seal 106 is responsible for the circumferential seal between the door 102 and the housing 100, while the secondary door seal 108 is responsible for the sealing between the two doors 102. Together, they replace the sealing function of the traditional flip beam, forming a full-dimensional sealing system.

[0036] The coordinated sealing of the main door seal 106 and the secondary door seal 108 completely replaces the traditional flip beam, eliminating the need for a flip beam installation structure on the door 102 or cabinet 100. This simplifies the overall structure of the refrigerator, avoids the noise generated during the operation of the flip beam, and enhances the high-end user experience of the refrigerator.

[0037] The main door seal 106 covers the circumferential gap between the door 102 and the cabinet 100, and the secondary door seal 108 fills the mating gap between the two doors 102. Together with the end flexible seal, it forms a seal without dead angles, which can effectively block the exchange of heat and cold between the inside and outside of the cabinet 100, reduce the loss of cold energy, reduce the energy consumption of the refrigerator, and maintain the stable temperature inside the cabinet 100.

[0038] The deformation characteristics of the door seal assembly 104 are adapted to the rotation trajectory of the door body 102 with ordinary single and double axis hinges. Unlike competing products, there is no need to modify the structure of the cabinet 100, replace the multi-joint hinges, or add telescopic mechanisms. It can be directly applied to the existing refrigerator production platform, which greatly reduces the product modification and R&D costs.

[0039] See Figure 3 According to one embodiment of the present invention, the cross-section of the main door seal 106 is polygonal along the direction perpendicular to the height of the door body 102.

[0040] In one embodiment of the present invention, the cross-section of the main door seal 106 is polygonal, preferably octagonal, along a direction perpendicular to the height of the door body 102. It is composed of multiple straight sides and corners connected in sequence, and the length of the sides is adapted to the shape of the opening edge of the box body 100. The contour of the polygonal cross-section is optimized to ensure that the main door seal 106 can form surface contact with the surface of the box body 100 and the extrusion plate 116 when deformed, rather than point contact or line contact.

[0041] The main door seal 106 is fixed to the extrusion plate 116 on the side facing the housing 100. The flat surface of the extrusion plate 116 is tightly fitted to one side of the polygonal cross-section to form a rigid support. When the door 102 is closed, the extrusion plate 116 transmits the extrusion force of the housing 100, causing multiple sides of the polygonal cross-section to be stressed simultaneously. This causes the main door seal 106 to deform uniformly as a whole, fitting against the edge of the opening of the housing 100 and avoiding sealing gaps caused by insufficient local deformation.

[0042] The polygonal cross-section of the main door seal 106 smoothly transitions to the end of the secondary door seal 108, and the two are integrally formed without any splicing gaps. When the door 102 is closed, the deformation of the main door seal 106 and the compression of the secondary door seal 108 coordinate with each other to ensure that there are no gaps in the sealing connection between the door 102 and the housing 100, and between the two doors 102, forming a continuous sealing barrier.

[0043] The polygonal cross-section allows the main door seal 106 to fit together with the surface of the housing 100 and the extrusion plate 116 on multiple sides, resulting in a larger contact area and a tighter seal. This effectively fills tiny gaps and reduces the leakage of hot and cold air, significantly improving the thermal insulation performance compared to traditional rectangular or circular cross-section door seals.

[0044] The polygonal cross-section structure allows the main door seal 106 to adjust its shape along a preset direction when deformed, preventing irregular twisting. This ensures that the main door seal 106 can accurately fit the sealing surface every time the door 102 is closed, resulting in a stable sealing effect and avoiding local sealing failure caused by uneven deformation.

[0045] More importantly, the deformation capability of the polygonal cross section is perfectly matched with the sealing function of the secondary door seal 108, together forming a sealing system without a flip beam. Reliable sealing can be achieved without relying on the auxiliary pressing of the flip beam. At the same time, it is compatible with the rotation trajectory of the door 102 of ordinary single and double axis hinges, further expanding the applicable platform of the refrigerator.

[0046] See Figure 4 According to one embodiment of the present invention, a thickness reduction zone 110 is formed at the corner position of the main door seal 106.

[0047] In one embodiment of the present invention, a thickness reduction zone 110 is formed at the corner of the main door seal 106. The wall thickness of the thinning zone is less than the wall thickness of other parts of the main door seal 106, and the thinning zone transitions smoothly with the side without obvious steps or abrupt changes. The length of the thinning zone covers the entire corner area, ensuring that stress can be evenly distributed during deformation and avoiding local stress concentration.

[0048] The thickness reduction zone 110 is integrally formed with the other parts of the main door seal 106 and is made of the same elastic material, ensuring that the thinning zone has the same flexibility and elastic recovery force as the main door seal 106. During the molding process, the wall thickness of the thinning zone is precisely controlled by the mold to ensure that the degree of thinning at each corner is consistent, so that the main door seal 106 deforms evenly along its length.

[0049] When the door 102 is closed, the housing 100 and the extrusion plate 116 apply extrusion force to the main door seal 106. The thinning area 110, due to its thinner wall thickness, deforms first, causing the sides of the polygonal cross-section to adjust their angle, so that the main door seal 106 fits the surface of the housing 100 as a whole. The deformation range of the thinning area is greater than that of the sides, ensuring that the main door seal 106 can perfectly fit the shape of the opening edge of the housing 100, forming a tight seal.

[0050] The corner thickness reduction zone 110 reduces the resistance when the main door seal 106 deforms. When the door 102 is closed, the main door seal 106 can be pushed to complete the sealing deformation without additional force, avoiding the door 102 from failing to close automatically due to excessive deformation resistance, thus ensuring the convenience of using the refrigerator.

[0051] The directional deformation characteristics of the thinning zone enable the polygonal cross-section of the main door seal 106 to fit more precisely against the surface of the cabinet 100, reducing the sealing gap and further improving the sealing reliability. At the same time, it avoids local sealing failure caused by uneven deformation, ensuring the stable heat insulation performance of the refrigerator.

[0052] The thinning zone allows deformation stress to be distributed more evenly across the entire cross-section, preventing cracking and aging at thick-walled corners due to stress concentration, extending the service life of the main door seal 106, and reducing the refrigerator's maintenance costs.

[0053] See Figure 3 and Figure 5 According to one embodiment of the present invention, a plurality of blocks 112 are formed inside the main door seal 106. When the door 102 is in the closed state, the blocks 112 are adapted to divide the interior of the main door seal 106 into a plurality of independent closed chambers 114.

[0054] In one embodiment of the present invention, a plurality of blocks 112 are uniformly arranged inside the main door seal 106 along the cross-sectional direction. The blocks 112 are elastic protrusions integrally formed with the main door seal 106 and are made of the same material as the main door seal 106. The arrangement of the blocks 112 is of two types: some blocks 112 are arranged corresponding to each other, and some blocks 112 extend toward the inner wall of the main door seal 106, forming an alternating distribution.

[0055] Before the door 102 is closed, the main door seal 106 is in its initial state, with gaps between the multiple blocks 112 and a connected cavity inside. When the door 102 is closed and the main door seal 106 is squeezed into a deformed state, the corresponding blocks 112 abut against each other, and the blocks 112 extending towards the inner wall abut against the inner wall of the main door seal 106, dividing the interior of the main door seal 106 into multiple independent closed chambers 114.

[0056] Multiple independent enclosed chambers 114 block air convection inside the main door seal 106, significantly reducing the convective heat transfer coefficient. Compared with traditional hollow door seals, the insulation effect is more significant, which can reduce the loss of cold air in the refrigerator, reduce energy consumption, and maintain a stable temperature inside the cabinet 100.

[0057] The combination of the baffle 112 and the closed chamber 114 makes the structure of the main door seal 106 more stable, and it will not collapse or twist excessively when deformed. It can always maintain effective contact with the surface of the box 100, ensuring that the sealing effect does not decrease, while avoiding elastic fatigue of the main door seal 106 due to long-term deformation.

[0058] See Figure 5 According to one embodiment of the present invention, a plurality of blocks 112 abut against each other to form a closed chamber 114; And / or, Multiple blocks 112 abut against the inner wall of the main door seal 106 to form a closed chamber 114.

[0059] In one embodiment of the present invention, when the door is closed, the enclosed chamber 114 is a sealed space with no air circulation, effectively blocking heat transfer through air convection. Multiple blocks 112 abut against each other to form the enclosed chamber 114 described above; alternatively, the edges of the blocks 112 are fitted against the inner wall of the main door seal 106 to form the enclosed chamber 114 described above; or, while multiple blocks 112 abut against each other, the contact surfaces of the blocks 112 and the inner wall of the main door seal 106 are also tightly fitted to form the enclosed chamber 114 described above. Regardless of the form of the enclosed chamber 114, it can achieve a leak-free seal, ensuring the airtightness of each enclosed chamber 114 and forming multiple heat insulation barriers.

[0060] See Figure 2 According to one embodiment of the present invention, along the height direction of the door body 102, the main door seal 106 is provided with an extrusion plate 116 on the side facing the box body 100.

[0061] In one embodiment of the present invention, the extrusion plate 116 is a rigid flat plate (such as a rigid plastic plate or a composite material plate), which is arranged along the height direction of the door body 102 and has the same length as the main door seal 106. The extrusion plate 116 is fixed to the side of the main door seal 106 facing the box body 100, and is tightly fitted to the main door seal 106 by means of adhesive or bolt connection, with no gaps at the connection surface, ensuring that the extrusion force can be evenly transmitted.

[0062] When the door 102 is closed, the side of the extrusion plate 116 away from the main door seal 106 contacts the edge of the opening of the box 100, forming a rigid support. This evenly transmits the reaction force of the box 100 to the entire length of the main door seal 106, causing the main door seal 106 to deform evenly along the height direction, thus avoiding sealing gaps caused by excessive or insufficient local force.

[0063] The thickness of the extrusion plate 116 is adapted to the deformation range of the main door seal 106, ensuring that when the door 102 is closed, the extrusion plate 116 can push the main door seal 106 to deform sufficiently without damaging the main door seal 106 due to excessive extrusion. The flat surface of the extrusion plate 116 ensures that the main door seal 106 is subjected to uniform force, making the deformation of the polygonal cross-section more regular and the fit tighter.

[0064] The full-length support of the extrusion plate 116 ensures that the extrusion force is evenly distributed along the height direction of the main door seal 106, and the deformation of each part of the main door seal 106 is consistent. This avoids poor sealing caused by insufficient local deformation or elastic fatigue caused by excessive local deformation, and ensures a uniform and reliable sealing effect throughout the entire length direction.

[0065] The rigid compression plate 116 can limit the lateral displacement of the main door seal 106. During the opening and closing of the door 102, the main door seal 106 always remains in the preset installation position and will not be displaced due to vibration or deformation, thus ensuring the accuracy of the sealing position and extending the service life of the main door seal 106.

[0066] According to one embodiment of the present invention, flexible sealing elements are provided at both ends of the main door seal 106 along the height direction of the door body 102.

[0067] In one embodiment of the present invention, the flexible seal can be a closed-cell sponge or a flexible rubber strip, which has good elasticity and sealing performance, and is soft and non-absorbent of water and moisture. The flexible seal is designed along the end cross-sectional shape of the main door seal 106, and can completely cover the ends of the main door seal 106 and the secondary door seal 108 to form an end seal.

[0068] The flexible seal is tightly connected to the ends of the main door seal 106 and the secondary door seal 108 by adhesive bonding, ensuring a firm connection that is not easily detached. After installation, the outer side of the flexible seal fits against the end face of the door body 102, while the inner side seals against the closed cavity 114 inside the door seal, forming a double seal between the end and the internal cavity.

[0069] When the door 102 is closed, the main door seal 106 and the secondary door seal 108 deform. The flexible seal can be compressed or extended synchronously with the deformation of the door seal to fill the gap between the end of the door seal and the door 102 and the housing 100. When the door 102 is opened, the flexible seal returns to its original shape under the action of elastic restoring force, without affecting the smoothness of opening the door 102.

[0070] The flexible seal fills the gap between the two ends of the main door seal 106 and the secondary door seal 108, preventing air from flowing from the inside and outside of the cabinet 100 through the ends. This solves the problem of easy air leakage at the ends of traditional door seals, making the refrigerator's seal form a closed loop along the entire length, further improving heat insulation and moisture-proof performance, and reducing cold loss and condensation.

[0071] The flexible seal has a certain buffering effect. When the door 102 is opened and closed, it can absorb the collision force between the end of the door seal and the door 102 and the cabinet 100, reducing vibration and noise. Combined with the design without a flip beam, it completely eliminates the abnormal noise when the refrigerator door is opened and closed, and enhances the high-end user experience.

[0072] The flexibility of flexible seals allows them to adapt to minor dimensional errors or assembly deviations during door seal installation. They fill the gaps in the error by deforming themselves, achieving a good seal without the need for high-precision assembly, thus reducing the difficulty and cost of production and assembly.

[0073] See Figure 3 According to one embodiment of the present invention, a heating element 118 is provided inside the secondary door seal 108.

[0074] In one embodiment of the present invention, the heating element 118 is a flexible heating wire or heating film, uniformly distributed along the length of the secondary door seal 108, and embedded in a preset cavity inside the secondary door seal 108. The heating element 118 is electrically connected to the refrigerator's control system and can automatically start or stop according to the ambient temperature, thereby increasing the surface temperature of the secondary door seal 108 by generating heat.

[0075] The heating element 118 is wrapped with an insulating layer to prevent short circuits or damage caused by direct contact with the elastic material of the secondary door seal 108. The heating element 118 is fixed to the cavity of the secondary door seal 108 by snap-fit ​​or adhesive to ensure that the door 102 does not shift during opening and closing and that the heating position is stable.

[0076] The heat from the secondary door seal 108 can be partially transferred to the mating area of ​​the main door seal 106, which helps to increase the surface temperature of the main door seal 106, further expands the anti-condensation range, and ensures that the sealing performance of the entire door seal assembly 104 is not affected by condensation.

[0077] The heating element 118 can effectively increase the surface temperature of the secondary door seal 108, prevent moisture condensation caused by the temperature difference between the inside and outside of the cabinet 100, prevent water droplets from appearing on the door seal surface, avoid water droplets dripping and causing dampness around the cabinet 100, and prevent condensation from seeping into the door seal gap and causing seal failure, thus ensuring the stable sealing and heat insulation performance of the refrigerator.

[0078] The anti-condensation function of the heating element 118 enables the refrigerator to adapt to high-temperature and high-humidity environments such as humid southern regions, preventing mold and aging of the door seal due to excessive humidity. Furthermore, the heating element 118 is embedded inside the secondary door seal 108, without altering its external shape or sealing surface. When the door 102 is closed, the secondary door seal 108 can still deform normally, ensuring the sealing effect is unaffected. Simultaneously, the anti-condensation design enhances the user experience, eliminating the hassle of cleaning condensation from the door seal.

[0079] See Figure 3 According to one embodiment of the present invention, a partition 120 is provided inside the sub-door seal 108. The partition 120 is adapted to divide the sub-door seal 108 into a heating chamber 122 and a partition chamber 124. The partition chamber 124 is disposed near the door body 102, and the heating element 118 is disposed in the heating chamber 122.

[0080] In one embodiment of the present invention, the insulating member 120 is a flexible heat insulation member (such as heat insulation cotton or flexible heat insulation film) extending along the length direction of the sub-door seal 108, dividing the interior of the sub-door seal 108 into a heating chamber 122 and an insulating chamber 124. The insulating chamber 124 is disposed close to the door body 102, and the heating chamber 122 is located on the side of the insulating chamber 124 away from the door body 102. The heating member 118 is disposed in the heating chamber 122.

[0081] The insulating element 120 has good heat insulation performance, which can prevent the heat generated by the heating element 118 from being transferred to the interior of the door body 102, so that the heat is concentrated on the sealing surface of the heating cavity 122 and the secondary door seal 108, thereby improving the anti-condensation efficiency. At the same time, the insulating element 120 can reduce the impact of the heat from the heating element 118 on the internal storage space of the door body 102, and prevent the internal temperature of the door body 102 from rising.

[0082] The wall of the heating chamber 122 is thinner than that of the isolation chamber 124, which facilitates heat transfer to the surface of the secondary door seal 108. The wall of the isolation chamber 124 is relatively thicker, which, together with the heat insulation performance of the isolation element 120, further prevents heat loss. Both the heating chamber 122 and the isolation chamber 124 are independent chambers with no air circulation inside, which ensures both heat insulation and enhances the structural stability of the secondary door seal 108.

[0083] The heating element 118 is fixed at the center of the heating chamber 122 and fits tightly against the insulating element 120, ensuring that heat can be quickly transferred to the surface of the secondary door seal 108 through the wall of the heating chamber 122, while avoiding direct contact between the heating element 118 and the elastic material of the secondary door seal 108, thus extending the service life of the heating element 118.

[0084] The separator 120 separates the heating chamber 122 from the isolation chamber 124, so that the heat generated by the heating element 118 is concentrated on the sealing surface of the secondary door seal 108, avoiding heat transfer to the interior of the door body 102 and causing waste, greatly improving heating efficiency, reducing the energy consumption of the heating element 118, and at the same time rapidly increasing the surface temperature of the door seal, making the anti-condensation effect more significant.

[0085] The isolation chamber 124 and the isolation element 120 can block heat from being transferred to the door 102, preventing the door 102 from aging, deforming or peeling off due to long-term heat exposure, protecting the structural integrity of the door 102 and extending the overall service life of the refrigerator.

[0086] The isolation component 120 itself has good thermal insulation performance, which can further block the heat exchange between the inside and outside of the cabinet 100. It works in conjunction with the closed chamber 114 of the main door seal 106 to form multiple thermal insulation barriers, reduce the overall energy consumption of the refrigerator, and improve energy utilization efficiency.

[0087] According to one embodiment of the present invention, the main door seal 106 and the secondary door seal 108 are integrally formed.

[0088] In one embodiment of the present invention, the main door seal 106 and the secondary door seal 108 are made of the same elastic material and manufactured by a molding process, with no splicing gaps between them, forming a complete door seal. The secondary door body 102 is vertically connected to one side of the main door seal 106 and smoothly transitions with the polygonal cross-section of the main door seal 106, together forming an installation structure adapted for the installation of the door body 102.

[0089] The one-piece molded door seal assembly 104 is fixed to the door body 102 by the extrusion plate 116. During installation, there is no need to separately position and fix the main door seal 106 and the secondary door seal 108, which simplifies the assembly process. When the door body 102 is closed, the deformation of the main door seal 106 and the secondary door seal 108 is coordinated and synchronized. The main door seal 106 fits against the housing 100, and the secondary door seal 108 fits against the secondary door seal 108 of the other door body 102, forming a seamless and coordinated seal.

[0090] The main door seal 106 and the secondary door seal 108 are integrally molded, which reduces the number of parts, eliminates the need for additional connection structures or assembly steps, simplifies the production and assembly process, reduces manufacturing costs and assembly errors, and improves production efficiency.

[0091] The one-piece molding structure makes the deformation of the main door seal 106 and the secondary door seal 108 coordinated and consistent, resulting in a smaller sealing gap. At the same time, the heating heat of the secondary door seal 108 can be partially transferred to the mating area of ​​the main door seal 106, which helps to improve the anti-condensation effect of the main door seal 106 and achieves synergistic optimization of sealing and anti-condensation.

[0092] The one-piece molding without splicing gaps avoids the problem of loosening and falling off of the connection caused by long-term deformation or vibration of the split structure. The overall structural strength of the door seal assembly 104 is higher and the service life is longer. At the same time, it avoids the decline in sealing and heat insulation performance caused by air leakage at the splicing point.

[0093] Finally, it should be noted that the above embodiments are only for illustrating the present invention and not for limiting the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and should be covered within the scope of the claims of the present invention.

Claims

1. A refrigerator characterized by comprising: The utility model relates to a door seal assembly of a refrigerated container, comprising: a box body; a pair of door bodies hinged to the box body, the door bodies not being provided with a turnover beam, the door bodies being provided with door seal assemblies on the abutting edges of the door bodies, the door seal assemblies on one of the door bodies being pressed against the door seal assemblies on the other of the door bodies when the door bodies are in a closed state, and the door seal assemblies on the two door bodies being adapted to be attached to the box body.

2. The refrigerator according to claim 1, characterized in that, The door seal assembly comprises: a main door seal provided on the side of the door body facing the box body along the height direction of the door body; a secondary door seal provided on the side of the pair of door bodies facing each other along the height direction of the door body.

3. The refrigerator according to claim 2, characterized in that, The cross section of the main door seal along the direction perpendicular to the height of the door body is in a polygonal structure.

4. The refrigerator according to claim 3, characterized in that, The corner position of the main door seal is formed with a thickness-thinning area.

5. The refrigerator according to claim 3, characterized in that, A plurality of stop blocks are formed in the main door seal, the stop blocks being adapted to separate the inner part of the main door seal into a plurality of mutually independent closed chambers when the door bodies are in a closed state.

6. The refrigerator according to claim 5, characterized in that, The plurality of stop blocks abut against each other to form the closed chambers. And / or, The plurality of stop blocks abut against the inner wall of the main door seal to form the closed chambers.

7. The refrigerator according to claim 2, characterized in that, The side of the main door seal facing the box body along the height direction of the door body is provided with a pressing plate.

8. The refrigerator according to claim 2, characterized in that, The two ends of the main door seal along the height direction of the door body are provided with flexible sealing members.

9. The refrigerator according to any one of claims 2 to 8, characterized in that, The secondary door seal is provided with a heating member.

10. The refrigerator according to claim 9, characterized in that, The secondary door seal is provided with a partition member, the partition member being adapted to separate the secondary door seal into a heating cavity and a partition cavity, the partition cavity being provided close to the door body, and the heating member being provided in the heating cavity.

11. The refrigerator according to any one of claims 2 to 8, characterized in that, The main door seal and the secondary door seal are integrally formed.

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