Refrigerator

Abstract

The utility model belongs to the technical field of refrigerating and freezing equipment, and provides a refrigerator which comprises a door body, a refrigerator body and a door hinge. The door hinge comprises an outer sleeve body, a support body and a bearing, and the bearing is supported between the outer sleeve body and the support body and used for counteracting relative movement between the outer sleeve body and the support body. The support body is arranged in the outer sleeve body, at least two separation layers which are arranged at intervals are arranged on the support body, and a flow guide cavity is defined by a separation area of every two adjacent separation layers and the inner wall of the outer sleeve body; the connecting pipes in one-to-one correspondence with the separation layers penetrate through the corresponding separation layers along the top of the outer sleeve body; the connectors arranged in one-to-one correspondence with the flow guide cavities penetrate to the corresponding flow guide cavities along the side wall of the outer sleeve body; and the connecting pipe and the connector which penetrate through the same flow guide chamber form a passage for fluid circulation in the flow guide chamber. According to the refrigerator, the pipeline arranged on the refrigerator door body can move synchronously with the door body, and the influence on cold energy transmission is eliminated.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of refrigeration and freezing equipment, and particularly relates to a refrigerator. BACKGROUND

[0002] With the improvement of people's living standards, the functional requirements for refrigerators are getting higher and higher. In the past, as long as there were two compartments for refrigeration or freezing, the consumer demand could be met. With the richness of food and the improvement of living standards, the refrigerator now needs a new refrigerator with large capacity, multiple compartment classification storage, independent adjustment of compartment temperature, ice maker cold water on the door or box body, -20 to -60 degree deep cooling compartment, frost-free air cooling, fast cooling and freezing, etc. Under the condition that the basic refrigeration mode has not been revolutionized, the actual problem to be solved is how to transport the cooling capacity to the required compartment.

[0003] In practical application, the refrigeration system on the traditional refrigerator is generally designed in the box body part. When the movable door body needs cooling capacity, if the cold pipe carrying refrigerant is used to directly transport the cooling capacity to the door body, the synchronization of rotation and translation of the pipe during the movement of the door body needs to be solved. If the fan is used to transport the cooling capacity from the box body to the door body, the sealing of the pipe on the door body, the cold leakage, condensation, heat preservation and other problems of the air duct system need to be solved. At present, these problems have not been solved well. SUMMARY

[0004] The purpose of the embodiment of the application is to provide a refrigerator, so that the pipe arranged on the door body of the refrigerator can move synchronously with the door body, and the influence on the cooling capacity transmission is excluded.

[0005] To achieve the above purpose, the technical scheme adopted by the application is to provide a refrigerator, comprising:

[0006] a door body;

[0007] a refrigerator body provided with a hinge box for connecting with the door body;

[0008] a door hinge arranged on the connecting end of the hinge box extending to the door body, the door hinge comprising:

[0009] an outer sleeve body which is a blind cylinder with a top opening, the bottom of the outer sleeve body having a sealing plate;

[0010] a support body arranged inside the outer sleeve body, the support body being provided with at least two spaced apart partition layers, and the spacing area between two adjacent partition layers and the inner wall of the outer sleeve body forming a flow guide chamber;

[0011] a bearing supported between the outer sleeve body and the support body, the bearing being configured to counteract relative movement between the outer sleeve body and the support body;

[0012] a connecting pipe corresponding to the partition layer, the connecting pipe being configured to connect with a cold energy transmission pipe on the refrigerator body through the hinge box, the connecting pipe penetrating through the corresponding partition layer along the top of the outer sleeve body;

[0013] a connecting head corresponding to the flow guide chamber, the connecting head being configured to connect with a cold energy transmission pipe on the door body, the connecting head penetrating through the corresponding flow guide chamber along the side wall of the outer sleeve body;

[0014] the connecting pipe and the connecting head penetrating through the same flow guide chamber, forming a passage for fluid flow in the flow guide chamber.

[0015] The refrigerator provided by the present application has the following advantages: compared with the prior art, the refrigerator of the present application is provided with a door hinge capable of synchronously moving with a door body, the door hinge comprising an outer sleeve body and a support body arranged inside the outer sleeve body, and a bearing supported between the outer sleeve body and the support body. The outer pipe is connected to the connecting pipe of the support body and the connecting head of the outer sleeve body, respectively, and the bearing effectively counteracts the relative movement between the outer sleeve body and the support body. When the outer sleeve body rotates with the door body of the refrigerator, the support body inside can remain stationary, thereby keeping the flow guide chambers on the door hinge unchanged, so that the fluid flowing in the flow guide chambers is not affected, effectively ensuring the smoothness of the fluid flowing through the door hinge and improving the cold energy transmission efficiency.

[0016] The structure of the door hinge is improved, and the partition layers are arranged apart from each other along the top to the bottom of the outer sleeve body.

[0017] The technical solution has the following advantages or beneficial effects:

[0018] The flow guide chambers in the door hinge can be arranged longitudinally, so that the door hinge can be longitudinally arranged between the refrigerator body and the door body, which is beneficial to saving space.

[0019] In one embodiment, in the direction from the top to the bottom of the outer sleeve body, the lowermost partition layer is arranged apart from the sealing plate, and the interval between the lowermost partition layer and the sealing plate and the inner wall of the outer sleeve body enclose a flow guide chamber.

[0020] The technical solution has the following advantages or beneficial effects:

[0021] The bottom of the outer sleeve body forms a sealing structure, and the bottom of the outer sleeve body can be enclosed with the lowermost separation layer on the support body to form a flow guide chamber, thereby ensuring the sealing of the bottom of the door hinge.

[0022] In one embodiment, the inner sleeve body is provided with an inner convex ring between two adjacent separation layers, and the flow guide chamber on the support body is enclosed by the inner convex ring and the two adjacent separation layers.

[0023] The above technical solution has the following advantages or benefits:

[0024] On the one hand, the inner convex ring on the outer sleeve body constitutes the outer peripheral wall of each flow guide chamber on the support body and functions to limit the height, thereby limiting the height of each flow guide chamber on the support body and ensuring the volume of each flow guide chamber on the support body. On the other hand, the inner convex ring on the outer sleeve body also functions to support the bearing, so that the bearing can be arranged in a groove formed by the end surface of the inner convex ring, the inner wall of the outer sleeve body, and the outer periphery of each separation layer, or so that the bearing can be arranged between the end surfaces of each two inner convex rings arranged above and below, thereby improving the compactness and sealing between the components on the door hinge.

[0025] In one embodiment, the door hinge further comprises a sealing ring arranged between the bearing and the inner convex ring and sealing the gap between the separation layer and the inner convex ring.

[0026] The above technical solution has the following advantages or benefits:

[0027] The sealing ring is arranged between the bearing and the inner convex ring and seals the gap between the separation layer and the inner convex ring, thereby ensuring the sealing of each flow guide chamber in the door hinge.

[0028] In one embodiment, the door hinge further comprises a fixing ring arranged inside the outer sleeve body, and the fixing ring is used to abut against the separation layer on both ends of the support body.

[0029] The above technical solution has the following advantages or benefits:

[0030] At least two fixing rings are arranged inside the outer sleeve body to abut against and fix the two ends of the support body, thereby effectively ensuring the fixing effect of the support body and improving the sealing of the door hinge.

[0031] In one embodiment, the inner wall of the outer sleeve body is provided with a mounting groove for mounting the fixing ring, and the fixing ring abuts against and fixes the separation layer on both ends of the support body from both ends, respectively.

[0032] The technical scheme has the advantages or beneficial effects as follows:

[0033] The installation groove formed on the inner wall of the outer sleeve is used to position the fixing ring, so that the fixing ring is prevented from being displaced and the fixing effect of the fixing ring on the partition layer on the two ends of the support body is improved.

[0034] In one embodiment, the bearing comprises:

[0035] An inner ring abutting against the outer periphery of the partition layer on the support body;

[0036] An outer ring abutting against the inner wall of the outer sleeve;

[0037] A retainer arranged between the inner ring and the outer ring;

[0038] Rolling elements arranged in the retainer and uniformly distributed between the inner ring and the outer ring through the retainer.

[0039] The technical scheme has the advantages or beneficial effects as follows:

[0040] The rolling elements between the inner ring and the outer ring are used to offset the relative movement of the outer ring and the inner ring, so that the flow guide chamber is maintained unchanged and the transmission efficiency of the fluid in the flow guide chamber is improved.

[0041] The structure of the refrigeration system of the refrigerator is improved, and the refrigerator further comprises:

[0042] A carrier container arranged on the door body, the carrier container being used to place frozen objects;

[0043] A liquid storage container used to fill a fluid, the fluid being a liquid that does not freeze in the refrigeration temperature range of the refrigerator; the liquid storage container is connected with an inlet and outlet pipeline for cold energy transmission, the inlet and outlet pipeline being used to form a closed circulation flow channel passing through the door hinge and the carrier container and conveying the fluid, and the inlet and outlet pipeline is connected with the connecting pipe and the connecting head, respectively;

[0044] A compressor connected with the liquid storage container through a cold pipe and performing refrigeration on the fluid in the liquid storage container.

[0045] The technical scheme has the advantages or beneficial effects as follows:

[0046] The refrigerator of the present application uses a fluid which does not freeze in the refrigeration temperature range of the refrigerator as a cold carrier, uses the advantages of the fluid, such as large specific heat, small pressure required in the flow process, no influence on the refrigeration system after leakage of the fluid, prevention of environmental pollution by using environmentally friendly liquid, stores the cold in the fluid, and quickly and safely transfers the cold to the object container which needs to be cooled through the flow of the fluid. The heat on the object container is taken out through the inlet and outlet pipes and circulates, and finally realizes the refrigeration of the object container on the door body of the refrigerator.

[0047] In one embodiment, the inlet and outlet pipes are flexible pipes, and the inlet and outlet pipes are connected with the connecting pipes on the door hinges and the connecting heads, respectively.

[0048] The technical solution has the following advantages or beneficial effects:

[0049] The flexible and deformable characteristics of the flexible pipes are used to flexibly adapt to the overall or local deformation caused by external force or the restriction of the environment, which is beneficial to flexibly setting the pipes on the door body and the door hinges of the refrigerator, and effectively improves the adaptability of the inlet and outlet pipes in the use environment.

[0050] In one embodiment, the refrigerator further comprises an evaporator, the compressor is connected with the evaporator, and the evaporator is connected with the liquid storage container through the cold pipe.

[0051] The technical solution has the following advantages or beneficial effects:

[0052] The evaporator is used to increase the refrigeration capacity of the compressor for the refrigerant, and then the fluid in the liquid storage container is refrigerated, so as to meet the cold demand of the household refrigerator. The fluid in the liquid storage container exchanges heat with the cold pipe with increased cold capacity, so that the cold capacity transmitted to the door body of the refrigerator meets the freezing or refrigeration demand of the household refrigerator. BRIEF DESCRIPTION OF DRAWINGS

[0053] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0054] Figure 1 The refrigerator provided in the embodiments of the present application has a three-dimensional structure Figure 1 ;

[0055] Figure 2 The connecting part between the refrigerator body and the door body provided in the embodiments of the present application is a partial enlarged view

[0056] Figure 3 A schematic diagram of the three-dimensional structure of a door hinge provided in an embodiment of the present application;

[0057] Figure 4 Schematic diagram of the explosion structure of the door hinge provided in the embodiment of the present application Figure 1 ;

[0058] Figure 5 Schematic diagram of the internal structure of the door hinge provided in the embodiment of the present application Figure 1 ;

[0059] Figure 6 Schematic diagram of the internal structure of the door hinge provided in the embodiment of the present application Figure 2 ;

[0060] Figure 7 Schematic diagram of the internal structure of the door hinge provided in the embodiment of the present application Figure 3 ;

[0061] Figure 8 Schematic diagram of the explosion structure of the door hinge provided in the embodiment of the present application Figure 2 ;

[0062] Figure 9 Schematic diagram of the three-dimensional structure of the refrigerator provided in the embodiment of the present application Figure 2 ;

[0063] Figure 10 A schematic diagram of the overall structure of a refrigerator refrigeration system provided in an embodiment of the present application;

[0064] Figure 11 Another structural schematic diagram of the refrigerator refrigeration system provided in an embodiment of the present application.

[0065] Among them, the reference numerals in the figures are:

[0066] 100-door hinge; 200-refrigerator body; 201-hinge box; 300-door body; 400-diversion chamber;

[0067] 1-outer casing; 11-sealing plate; 12-connector; 13-inner convex ring; 14-mounting groove;

[0068] 2- bracket body; 21- separation layer; 22- connecting pipe;

[0069] 3-bearing; 31-inner ring; 32-outer ring; 33-cage; 34-rolling element;

[0070] 4-sealing ring;

[0071] 5-fixing ring;

[0072] 6-Carrying container;

[0073] 7-liquid storage container; 71-inlet and outlet pipes;

[0074] 8-compressor; 81-cooling pipe;

[0075] 9- Evaporator. DETAILED DESCRIPTION

[0076] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0077] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0078] It should be understood that the terms "length", "width", "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.

[0079] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0080] The refrigeration system of a traditional refrigerator is typically designed into the cabinet. When cooling is needed at the movable door, using refrigerant-carrying cold pipes to deliver cooling directly to the door requires synchronization of the door's movement with the pipes' rotation and translation. Using a fan to deliver cooling from the cabinet to the door requires addressing numerous issues, such as sealing the air duct system as it leaves the door, preventing cold air leakage, condensation, and heat retention at the inlet and outlet. Currently, no effective solutions have been found for these problems.

[0081] In the related art, for the pipeline processing mode on the door hinge, a structure of pipeline penetrating a rotating drum is generally adopted to realize, that is, a rotating drum is arranged at the door hinge part of the door body, and the pipeline for cold quantity transmission penetrates the rotating drum and then extends to the door body, so as to realize the cold quantity transmission to the target on the door body. However, when the rotating drum rotates with the door body, the pipeline located in the rotating drum will be extruded, which causes the pipeline to be easily deformed, thereby affecting the smoothness of the fluid flow in the pipeline, and even causing blockage, which seriously affects the cold quantity transmission efficiency.

[0082] Herein, in view of the above situation, the refrigerator with a novel door hinge is provided, so that the pipeline arranged in the door hinge of the refrigerator is not extruded, the smoothness of the fluid flow in the pipeline is ensured, and the pipeline on the door body of the refrigerator and the door body can be effectively ensured to move synchronously, thereby excluding the influence on the cold quantity transmission. The scheme of the present application is specifically described as follows.

[0083] Please refer to Figure 1 and Figure 2 In the refrigerator provided in the embodiment of the present application, a door hinge 100, a refrigerator body 200 and a door body 300 are included.

[0084] The refrigerator body 200 is provided with a hinge box 201 for connecting with the door body 300, the connecting end of the hinge box 201 extends to the door body 300, and the inside of the hinge box 201 is used for arranging the cold quantity transmission pipeline extending from the refrigerator body 200 to the door body 300.

[0085] The door hinge 100 is arranged on the connecting end of the hinge box 201 extending to the door body 300.

[0086] Specifically, please refer to Figure 3 , Figure 4 and Figure 5 The door hinge 100 includes an outer sleeve body 1, a support body 2 and a bearing 3.

[0087] The outer sleeve body 1 is used for connecting with the door body 300 of the refrigerator, and the outer sleeve body 1 can rotate with the door body 300 of the refrigerator. In the embodiment, as shown in Figure 2 , the outer sleeve body 1 is preferably a blind cylinder with a top opening, and the bottom of the outer sleeve body 1 is provided with a sealing plate 11, so as to ensure the sealing property of the bottom of the door hinge 100 and exclude the existence of a liquid leakage gap at the bottom of the door hinge 100.

[0088] As shown in Figure 4 and Figure 5 , the support body 2 is arranged in the inside of the outer sleeve body 1, and the support body 2 is provided with at least two spaced-apart partition layers 21, and the interval region between the adjacent two partition layers 21 and the inner wall of the outer sleeve body 1 form a flow guide chamber 400.

[0089] The bearing 3 is supported between the outer sleeve body 1 and the support body 2, and is used to offset the relative movement between the outer sleeve body 1 and the support body 2. The outer sleeve body 1 can move with the door body 300 of the refrigerator, and under the offsetting action of the bearing 3, the support body 2 can remain stationary.

[0090] The door hinge 100 is also provided with a connecting pipe 22 corresponding to each partition layer 21 and a connecting head 12 corresponding to each flow guide chamber 400. The connecting pipe 22 is used to connect with the cold quantity transmission pipeline on the refrigerator body 200 through the hinge box 201, and each connecting pipe 22 penetrates through the corresponding partition layer 21 along the top of the outer sleeve body 1. The connecting head 12 is used to connect with the cold quantity transmission pipeline on the door body 300, and each connecting head 12 penetrates through the corresponding flow guide chamber 400 along the side wall of the outer sleeve body 1.

[0091] Among them, the connecting pipe 22 and the connecting head 12 penetrating through the same flow guide chamber 400 form a passage for fluid flow in the flow guide chamber 400.

[0092] Compared with the prior art, the refrigerator provided by the embodiment of the present application sets the door hinge 100 capable of synchronous movement with the door body 300 between the refrigerator body 200 and the door body 300. The door hinge 100 includes an outer sleeve body 1 and a support body 2 arranged inside the outer sleeve body 1, and a bearing 3 supported between the outer sleeve body 1 and the support body 2. Among them, the external pipeline is connected to the connecting pipe 22 of the support body 2 and the connecting head 12 of the outer sleeve body 1, respectively. By using the buffering action of the bearing 3, the relative movement between the outer sleeve body 1 and the support body 2 is effectively offset.

[0093] In this way, when the outer sleeve body 1 rotates with the door body 300 of the refrigerator, the internal support body 2 can remain stationary, thereby keeping each flow guide chamber 400 on the door hinge 100 unchanged, so that the fluid flowing in the flow guide chamber 400 is not affected, effectively improving the smoothness of the fluid flowing through the door hinge 100, and ensuring the cold quantity transmission efficiency.

[0094] Compared with the structure of the pipe penetrating the rotating drum in the prior art, the structure will cause the internal pipe to be extruded when the external rotating drum moves with the external rotating body, such as the door body, so that the internal pipe is easily deformed and the fluid flow in the pipe is easily affected. The door hinge 100 is provided with a bearing 3 between the outer sleeve body 1 and the internal support body 2. The buffering effect of the bearing 3 offsets the relative movement between the outer sleeve body 1 and the support body 2, so that the support body 2 inside the door hinge 100 can remain stationary. The flow guide chamber 400 inside the door hinge 100 is connected to the external pipe at one end through the connecting pipe 22 on the support body 2 and connected to the external pipe at the other end through the connecting head 12 on the outer sleeve body 1. When the outer sleeve body 1 rotates with the refrigerator door body, the internal support body 2 can remain stationary, so that the flow guide chamber 400 is not affected, effectively ensuring the smooth flow of the fluid through the door hinge 100 and improving the cold energy transmission efficiency.

[0095] In an embodiment of the present application, please refer to Figure 4 and Figure 5 The separation layer 21 in the door hinge 100 is preferably arranged along the top to bottom of the outer sleeve body 1.

[0096] In this way, the flow guide chamber 400 in the door hinge 100 can be arranged longitudinally, so that the door hinge 100 can be longitudinally arranged between the refrigerator body 200 and the door body 300, which is beneficial to save space.

[0097] Further, please refer to Figure 4 and Figure 5 In the direction from the top to the bottom of the outer sleeve body 1, the lowermost separation layer 21 is arranged apart from the sealing plate 11, and the interval between the lowermost separation layer 21 and the sealing plate 11 and the inner wall of the outer sleeve body 1 enclose the flow guide chamber 400. The bottom of the outer sleeve body 1 forms a sealing structure, and the bottom of the outer sleeve body 1 can enclose a flow guide chamber 400 with the lowermost separation layer 21 on the support body 2, ensuring the sealing of the bottom of the door hinge 100.

[0098] Specifically, please refer to Figure 4 , Figure 5 and Figure 6 The separation layer 21 on the support body 2 is provided with two, and the two adjacent separation layers 21 and the inner wall of the outer sleeve body 1 enclose a flow guide chamber 400 on the support body 2; in addition, the separation layer 21 close to the sealing plate 11 and the sealing plate 11 form a second flow guide chamber 400, thereby realizing the inlet and outlet pipe structure.

[0099] In other embodiments of the present application (not shown in the drawings), the partition layer 21 on the bracket body 2 is provided with at least three, and two adjacent partition layers 21 and the inner wall of the sleeve body 1 form one or more flow guide chambers 400 on the bracket body 2; in addition, the partition layer 21 close to the sealing plate 11 and the sealing plate 11 form a flow guide chamber 400 at the bottom of the door hinge 100. The connecting pipe 22 and the connecting head 12 on the door hinge 100 are the same as the number of flow guide chambers 400, and are respectively connected with the inlet and outlet pipes and respectively communicate with each flow guide chamber 400, so as to realize the structure of multiple inlets and outlets.

[0100] In this way, by increasing the partition layer 21 on the bracket body 2, the number of flow guide chambers 400 on the door hinge 100 is adjusted, and the use flexibility of the door hinge 100 is improved.

[0101] For the specific structure of the flow guide chamber 400 on the bracket body 2, in one embodiment of the present application, please refer to Figure 7 and Figure 8 The sleeve body 1 is provided with an inner protruding ring 13 between the two adjacent partition layers 21, and the flow guide chamber 400 on the bracket body 2 is formed by the inner protruding ring 13 and the two adjacent partition layers 21.

[0102] In this embodiment, the bearing 3 is arranged in the groove formed by the inner protruding ring 13, the inner wall of the sleeve body 1 and the outer periphery of each partition layer 21.

[0103] In other embodiments (not shown in the drawings), especially in the structure with multiple flow guide chambers 400 on the bracket body 2, the limiting structure of the upper and lower inner protruding rings 13 is formed to fix the bearing 3 arranged between each partition layer 21 and the sleeve body 1 by the limiting structure composed of the upper and lower inner protruding rings 13.

[0104] In this way, on the one hand, the inner protruding ring 13 on the sleeve body 1 forms the outer peripheral wall of each flow guide chamber 400 on the bracket body 2 and plays a role in limiting the height, so as to limit the height of each flow guide chamber 400 on the bracket body 2 and ensure the volume of each flow guide chamber 400 on the bracket body 2. On the other hand, the inner protruding ring 13 on the sleeve body 1 also plays a role in supporting the bearing 3, so that the bearing 3 can be arranged in the groove formed by the end face of the inner protruding ring 13, the inner wall of the sleeve body 1 and the outer periphery of each partition layer 21; or the bearing 3 can be arranged between the end faces of each two inner protruding rings 13 arranged above and below, thereby improving the compactness and sealing performance between each component on the door hinge 100.

[0105] In practical applications, since the flow guide chamber 400 in the door hinge 100 is mainly enclosed by the two partition layers 21 and the inner convex ring 13, gaps are easily formed at the splicing positions between them, which causes the door hinge 100 to be prone to liquid leakage or seepage, thereby affecting the cold energy transmission efficiency.

[0106] In this regard, in one embodiment of the present application, referring to Figure 7 and Figure 8 , the door hinge 100 further comprises a sealing ring 4, which is arranged between the bearing 3 and the inner convex ring 13. Specifically, the sealing ring 4 can be clamped between the end faces of each bearing 3 and the inner convex ring 13, and at the same time, at least part of the sealing ring 4 can be sealed in the gap between the partition layer 21 and the inner convex ring 13, thereby ensuring the sealing of each flow guide chamber 400 in the door hinge 100 of the present application.

[0107] In another embodiment of the present application, referring to Figure 7 and Figure 8 , the door hinge 100 further comprises a fixing ring 5 arranged inside the outer sleeve body 1, which is used to abut against the partition layer 21 on both ends of the support body 2.

[0108] In this way, at least two fixing rings 5 are arranged inside the outer sleeve body 1 to abut and fix the two ends of the support body 2, effectively ensuring the fixing effect of the support body 2 and improving the sealing performance of the door hinge 100.

[0109] Among them, the fixing ring 5 can preferably adopt a clamp, which has an outward expansion force, so that the clamp can abut against the inner wall of the outer sleeve body 1 and be fixed inside the outer sleeve body 1, which is conducive to maintaining abutment with the partition layer 21 on both ends of the support body 2.

[0110] On the basis of the above, in the embodiments of the present application, referring to Figure 7 and Figure 8 , the inner wall of the outer sleeve body 1 is further provided with a mounting groove 14 for mounting the fixing ring 5. The mounting groove 14 can preferably be an annular groove formed on the inner wall of the outer sleeve body 1, and the mounting groove 14 is positionally matched with the partition layer 21 on both ends of the support body 2.

[0111] Here, as shown in Figure 8 , at least two mounting grooves 14 are formed on the inner wall of the outer sleeve body 1, and the two mounting grooves 14 are located outside the partition layer 21 on both ends of the support body 2, so that when the fixing ring 5 is arranged on the mounting groove 14 of the outer sleeve body 1, it can be abutted and fixed with the partition layer 21.

[0112] In this way, the installation groove 14 formed on the inner wall of the sleeve body 1 is used to position the fixing ring 5, so as to avoid displacement of the fixing ring 5 and improve the clamping and fixing effect of the fixing ring 5 on the partition layer 21 on the two ends of the support body 2.

[0113] For the structure of the bearing 3, in an embodiment of the present application, please refer to Figure 7 and Figure 8 , the bearing 3 can preferably adopt a rolling bearing, which includes an inner ring 31, an outer ring 32, a retainer 33, and rolling bodies 34 arranged in the retainer 33. The inner ring 31 is in abutment with the outer periphery of the partition layer 21 on the support body 2, the outer ring 32 is in abutment with the inner wall of the sleeve body 1, and the retainer 33 is arranged between the inner ring 31 and the outer ring 32.

[0114] The rolling bodies 34 can preferably adopt rolling balls, which are uniformly distributed in the form of a ring between the inner ring 31 and the outer ring 32 through the retainer 33, thereby constituting the entire rolling bearing 3.

[0115] In this way, the rolling bodies 34 between the inner ring 31 and the outer ring 32 offset the relative movement of the outer ring 32 and the inner ring 31. When the outer ring 32 is driven by the sleeve body 1 and rotates with the door body, the rolling bodies 34 offset the frictional force, so as to keep the side of the inner ring 31 in abutment with the support body 2 stationary, thereby maintaining the flow guide cavity 400 and improving the transmission efficiency of the fluid in the flow guide cavity 400.

[0116] For the specific structure of the refrigeration system in the refrigerator, in an embodiment of the present application, please refer to Figure 9 and Figure 10 , the refrigeration system of the refrigerator at least includes a load container 6, a liquid storage container 7, and a compressor 8.

[0117] The load container 6 is arranged on the door body 300 and is used to place frozen objects. The load container 6 can be a disc body on which frozen objects can be directly placed, or a completely enclosed box body in which frozen objects are accommodated, or a grid body specially arranged according to the use requirement or a mold for manufacturing a specific shape of frozen product, such as an ice cream mold or a jelly mold, which is not limited here.

[0118] The liquid storage container 7 is used to fill a fluid, which can preferably be a liquid that does not freeze in the refrigeration temperature range of the refrigerator. The liquid is used as a cold carrier, and even if the liquid leaks, there is no risk, which is safe and reliable. For example, the fluid can adopt a glycol mixed liquid, which can meet the requirement of not freezing at -60 degrees.

[0119] The liquid storage container 7 is connected with an inlet and outlet pipe 71 for cold energy transmission, which comprises the output and input pipes on the liquid storage container 7, and the inlet and outlet pipe 71 is used to form a closed circulation flow channel through the door hinge 100 and the object storage container 6, and the inlet and outlet pipe 71 is connected with the connecting pipe 22 and the connecting head 12 respectively.

[0120] In the embodiment, the liquid storage container 7 is first arranged on the door hinge 100 of the application through the inlet and outlet pipe 71, and then connected with the object storage container 6 arranged on the door body 300. As an example, the output pipe and the input pipe of the inlet and outlet pipe 71 constitute two groups of pipes respectively connected with the connecting pipe 22 and the connecting head 12 on the door hinge 100, so as to form an inlet and outlet structure of the inlet and outlet pipe 71 on the door hinge 100 of the application, and connect with the object storage container 6 on the door body 300, thereby constituting a closed circulation flow channel. In this way, the fluid in the liquid storage container 7 can flow in the circulation flow channel, take away the heat of the frozen objects on the object storage container 6 and circulate, so as to rapidly reduce the temperature of the frozen objects placed on the object storage container 6.

[0121] The compressor 8 is connected with the liquid storage container 7 through the cold pipe 81, and refrigerates the fluid in the liquid storage container 7. That is, the output part of the compressor 8 in the conventional refrigeration device is directly connected with the liquid storage container 7, and refrigerates the fluid in the liquid storage container 7, so as to keep the fluid in the liquid storage container 7 at low temperature, and then take away the heat of the frozen objects on the object storage container 6 and circulate to transmit cold energy to the object storage container 6 on the door body 300, so as to rapidly reduce the temperature of the frozen objects.

[0122] The refrigerator of the application uses a fluid which does not freeze in the refrigeration temperature range of the refrigerator as a cold energy carrier, and has the advantages of large specific heat of the liquid itself, small pressure required in the flow process, no influence on the refrigeration system after leakage of the liquid, prevention of environmental pollution by using environmentally friendly liquid, etc. The cold energy is stored in the fluid, and rapidly and safely transmitted to the object storage container 6 which needs to transmit cold energy through the flow of the fluid. The heat on the object storage container 6 is taken away through the inlet and outlet pipe 71 and circulates, so as to finally realize the refrigeration of the object storage container 6 on the door body 300 of the refrigerator.

[0123] The refrigerator of the present application is to realize the temperature reduction of the object container 6 on the refrigerator door body 300 by the way of secondary exchange of cold energy, and to deliver the liquid substance storing cold energy to the object container 6 through the pipeline. The refrigerator of the present application, although the cold energy of the traditional refrigeration scheme is exchanged twice, the cold energy exchange can be carried out inside the heat preservation layer of the refrigerator. According to the law of conservation of energy, the actual refrigeration energy does not leak to the external environment of the equipment, and therefore has no effect on the energy consumption of the refrigerator. When the secondary cold energy exchange is increased, the liquid, non-toxic and reliable substance (the substance in liquid state at-18 degrees or lower temperature, such as glycol solution, salt water solution, organic solution, alcohol, etc. can be used as fluid) is used. The specific heat of such liquid substance as fluid is more than several tens of times of that of the traditional refrigerant. These fluids exchange heat with the cold pipe 81 inside the liquid storage container 7, so that the fluid in the liquid storage container 7 can be used as energy storage substance, which is beneficial to slow down the temperature fluctuation in the refrigerator and reduce the frequent start of the compressor 8, thereby reducing the energy consumption.

[0124] In addition, the fluid in the liquid storage container 7 can also be used as backup cold energy, especially when the power is off, the refrigerator can still be used for a certain period of time, greatly prolonging the low-temperature environment inside the refrigerator.

[0125] Preferably, in the refrigerator refrigeration system provided by the embodiment of the present application, referring to Figure 10 , the inlet and outlet pipeline 71 connected to the liquid storage container 7 can be preferably a flexible hose that can be bent and deformed as a whole or in part, and the inlet and outlet pipeline 71 is connected with the connecting pipe 22 and the connecting head 12 on the door hinge 100 respectively.

[0126] Since the cold energy carrier used in the present application is a low-pressure liquid substance, high-pressure pipelines are not required for transmission, and therefore the low-pressure liquid substance can be transmitted in a low-pressure pipeline. The low-pressure pipeline can use the above-mentioned flexible hose, and can realize the twisting and rotating of the pipeline within a certain rotation angle range, which is beneficial to solve the problem of long-distance delivery of cold energy or delivery of cold energy in a relatively complex environment (such as delivering cold energy to the refrigerator door body 300, which needs to overcome the rotating movement of the door body 300, etc.).

[0127] Among them, the flexible hose can preferably use a common bellows, which can meet the opening and closing of the door body 300 between the body of the refrigerator and the door body 300 by using the stretching and deforming function of the bellows.

[0128] Therefore, the refrigerator refrigeration system provided by the embodiment of the present application uses a low-pressure liquid to transfer cold energy, and thus can use a conventional low-pressure hose such as a bellows as a fluid transmission pipeline. The flexible deformation characteristics of the hose are used to flexibly adapt to overall or local deformation caused by external force or environmental restrictions, and are beneficial to flexible setting of the pipeline on the door body 300, the door hinge 100 or other special scenarios, and effectively improve the adaptability of the inlet and outlet pipelines 71 in the use environment.

[0129] In another embodiment of the present application, referring to Figure 11 The refrigerator of the present application further comprises an evaporator 9, the compressor 8 is connected with the evaporator 9, and the evaporator 9 is connected with the liquid storage container 7 through the cold pipe 81.

[0130] Therefore, the evaporator 9 is used to increase the refrigeration capacity of the compressor 8 on the refrigerant, and then refrigerate the fluid in the liquid storage container 7, so as to meet the cold energy requirement of the household refrigerator. The fluid in the liquid storage container 7 exchanges heat with the cold pipe 81 with increased cold energy, so that the cold energy transmitted to the load container 6 on the refrigerator door body 300 meets the freezing or refrigeration requirement of the household refrigerator.

[0131] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A refrigerator characterized by comprising: The door body comprises: a door body; a hinge box configured to connect with the door body; a door hinge configured to be connected to the connecting end of the hinge box extending to the door body, the door hinge comprising: a sleeve body being a blind cylinder with a top opening, the bottom of the sleeve body having a sealing plate; a support body arranged inside the sleeve body, the support body being provided with at least two spaced apart partition layers, the spacing area between adjacent two partition layers and the inner wall of the sleeve body forming a flow guide chamber; a bearing supported between the sleeve body and the support body, the bearing being used to offset the relative movement between the sleeve body and the support body; a connecting pipe corresponding to each partition layer, the connecting pipe being used to connect with the cold quantity transmission pipeline on the refrigerator body through the hinge box, the connecting pipe penetrating through the corresponding partition layer along the top of the sleeve body; and a connecting head corresponding to each flow guide chamber, the connecting head being used to connect with the cold quantity transmission pipeline located on the door body, the connecting head penetrating through to the corresponding flow guide chamber along the side wall of the sleeve body; the connecting pipe and the connecting head penetrating through the same flow guide chamber form a passage for fluid flow in the flow guide chamber.

2. The refrigerator according to claim 1, characterized in that: The partition layers are spaced apart along the top to the bottom of the sleeve body.

3. The refrigerator according to claim 2, characterized in that: In the direction from the top to the bottom of the sleeve body, the lowermost partition layer is spaced apart from the sealing plate, and the spacing area between the lowermost partition layer and the sealing plate and the inner wall of the sleeve body form a flow guide chamber.

4. The refrigerator according to any one of claims 1 to 3, characterized in that: The sleeve body is provided with an inner convex ring between adjacent two partition layers, and the flow guide chamber on the support body is formed by the inner convex ring and the adjacent two partition layers; the bearing is arranged in the groove formed by the inner convex ring, the inner wall of the sleeve body and the outer periphery of each partition layer.

5. The refrigerator according to claim 4, characterized in that: The door hinge further comprises a sealing ring arranged between the bearing and the inner convex ring, and sealing the gap between the partition layer and the inner convex ring.

6. The refrigerator according to any one of claims 1 to 3, characterized in that: The door hinge further comprises a fixing ring arranged inside the sleeve body, the fixing ring being used to abut against the partition layers on both ends of the support body.

7. The refrigerator according to claim 6, characterized in that: The inner wall of the sleeve body is provided with a mounting groove for mounting the fixing ring, and the fixing ring is respectively abutted and fixed against the partition layers on both ends of the support body from both ends.

8. The refrigerator according to any one of claims 1 to 3, characterized in that: The bearing comprises: an inner ring abutting against the outer periphery of the partition layer on the support body; an outer ring abutting against the inner wall of the sleeve body; a retainer arranged between the inner ring and the outer ring; rolling elements arranged in the retainer, the rolling elements being uniformly distributed between the inner ring and the outer ring through the retainer.

9. The refrigerator according to any one of claims 1 to 3, characterized in that, The refrigerator further comprises: a carrier container arranged on the door body, the carrier container being used to place frozen objects; A liquid storage container for storing a fluid which is a liquid that does not freeze in the refrigeration temperature range of the refrigerator; a connection pipe for cold energy transmission is connected to the liquid storage container, and the connection pipe is used to form a closed circulation flow path that passes through the door hinge and the object storage container and transports the fluid, and the connection pipe is connected to the connection pipe and the connection head, respectively; A compressor connected to the liquid storage container through a cold pipe and refrigerating the fluid in the liquid storage container.

10. The refrigerator according to claim 9, characterized in that: The connection pipe is a hose, and the connection pipe is connected to the connection pipe and the connection head on the door hinge, respectively.

11. The refrigerator according to claim 9, characterized in that: The refrigerator further comprises an evaporator, and the compressor is connected to the evaporator, and the evaporator is connected to the liquid storage container through the cold pipe.

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