Air-cooled refrigerators and methods to improve freezing capacity

Abstract

This invention relates to the field of air-cooled refrigerators, and more particularly to air-cooled refrigerators and methods for improving freezing capacity. The refrigerator body includes a main body with a receiving cavity and a back cavity. Multiple layers of material-carrying components are arranged upwards from the bottom of the receiving cavity. Each material-carrying component includes a carrier plate. The carrier plate has an internal air cavity connected to a cold air assembly. Several air inlets are evenly distributed on the upper surface of the carrier plate, and several blocking plates are evenly distributed within the air cavity, aligning with the air inlets. The blocking plates are connected to the carrier plate by springs, and a carrier plate is fixed to the upper part of the blocking plate, protruding from the upper surface of the carrier plate. This invention uses a carrier plate with an internal air cavity to carry items. Several air inlets are provided on the bearing surface of the carrier plate, and several elastically installed blocking plates seal the air inlets. When items are placed on the carrier plate surface, the blocking plates at the item-covered parts are pressed down, causing the corresponding air inlets at the item positions to open. Cold air is ejected upwards from the bottom of the item, quickly surrounding the item with cold air, resulting in rapid cooling and high cold source utilization.

Description

Technical Field

[0001] This invention relates to the field of air-cooled refrigerators, and more particularly to air-cooled refrigerators and methods for improving freezing capacity. Background Technology

[0002] Frost-free refrigerators work by cooling airflow to create cold air, which is then introduced into the storage space to cool the stored items, thus achieving the purpose of freezing and refrigeration. The biggest advantage of frost-free refrigerators is that they are frost-free. The storage space of frost-free refrigerators has low moisture content, making it less likely for water droplets to form, preventing stored items from sticking together, and reducing the likelihood of odors.

[0003] The key to cooling in a frost-free refrigerator is to keep cold air flowing into the storage space. In traditional frost-free refrigerators, the cold air inlet position is fixed. No matter how the amount and distribution of items in the storage space change, the cold air is always input into the storage space at a constant position and in a constant amount. The overall temperature of the storage space is lowered to achieve cold storage of the items. The cooling efficiency of the items needs to be improved, and the utilization rate of cold air is low. Summary of the Invention

[0004] The purpose of this invention is to solve the following problems existing in the prior art: the cold air inlet position of the storage space of a traditional air-cooled refrigerator is fixed. No matter how the amount of items stored in the storage space or the distribution of items changes, the cold air is always input into the storage space at a constant position and a constant amount. The cold storage of items is achieved by lowering the overall temperature of the storage space. The cooling efficiency of the cold storage needs to be improved, and the utilization rate of cold air is low.

[0005] To address the problems existing in the prior art, the present invention provides an air-cooled refrigerator, including a refrigerator body, the refrigerator body having a receiving cavity and a back cavity;

[0006] The material-carrying assembly consists of multiple layers arranged from the bottom of the refrigerator's main compartment upwards, used to carry items.

[0007] The cold air assembly is located in the back cavity and is used to supply cold air to the material carrier assembly.

[0008] The material-carrying assembly includes a carrier plate, the interior of which has an air cavity connected to the cold air assembly. Several air inlets penetrating the air cavity are evenly opened on the upper surface of the carrier plate. Several blocking plates aligned with the air inlets are evenly distributed in the air cavity. The blocking plates are connected to the carrier plate by springs. The blocking plates are blocked upward by elastic force. A carrier plate is fixed on the upper part of the blocking plate. The carrier plate protrudes from the upper surface of the carrier plate. When the carrier plate is pressed by an object, it pushes the blocking plate to overcome the elastic force and descend, so that the air inlet is opened and cold air is delivered.

[0009] Preferably, a plurality of protrusions are uniformly fixed on the upper surface of the carrier plate, and the air inlet is located in the gap between the protrusions.

[0010] Preferably, the upper surface of the carrier plate has an annular opening that passes through the air cavity, and the surface of the carrier plate (excluding the bottom) inside the refrigerator body cavity has a through hole that passes through the upper and lower spaces of the carrier plate.

[0011] Preferably, the cooling air assembly includes a panel for separating the receiving cavity and the back cavity. The panel has an air duct inside and a socket assembly is provided on the surface of the panel. The end of the carrier plate is provided with a plug-in assembly adapted to the socket assembly. The air cavity is connected to the ventilation duct through the socket assembly and the plug-in assembly. A fan is provided in the back cavity and delivers airflow into the air duct. A cooling component is provided at the air inlet of the fan. A return air port is provided at the top of the panel and is used to deliver air from inside the receiving cavity to the back of the cooling component.

[0012] Preferably, a number of sets of insertion components are vertically arranged on the panel surface, and a number of sets of limiting strips are vertically arranged on the side wall of the receiving cavity. The side of the material loading component is slidably inserted into the limiting strips so that the insertion component is aligned with the insertion component.

[0013] Preferably, the socket assembly includes a socket hole formed on the panel surface, the socket hole passing through the air duct, a baffle plate being elastically installed in the air duct by a spring, the baffle plate blocking the socket hole under the action of elastic force, and the plug assembly including a plug tube adapted to the socket hole, the plug tube passing through the air cavity, the end of the plug tube having an extension portion, when the plug tube is inserted into the socket hole, the extension portion first contacts and squeezes the baffle plate.

[0014] Preferably, the outer wall of the insertion tube is provided with an electrical contact piece, the surface of the carrier plate is provided with a light strip, the circuit of the light strip is connected to the electrical contact piece, and the insertion hole is provided with an electrical contact strip. When the insertion tube is inserted into the insertion hole, the electrical contact piece contacts the electrical contact strip.

[0015] Preferably, a movable cavity is formed at the top corner of the carrier plate, and a corner bracket is rotatably installed in the movable cavity by a torsion spring. A locking block is fixed at the end of the corner bracket, and the locking block penetrates the bottom of the carrier plate. A locking groove is formed on the surface of the limiting strip, and the locking block is adapted to engage with the locking groove. A pressure handle is fixed on the surface of the corner bracket, and the pressure handle protrudes from the bottom surface of the carrier plate.

[0016] The specific steps of the method for improving the freezing capacity of the air-cooled refrigerator are as follows:

[0017] A. The sealing plate, under the action of elasticity, blocks the air inlet, making the air cavity a sealed space;

[0018] B. When the item is placed on the surface of the carrier plate, the carrier plate supporting the item pushes the blocking plate to move downward against the elastic force, thus opening the air inlet.

[0019] C. Cold air is delivered into the air cavity through the cold air assembly, and the cold air is discharged from the open air inlet, so that the bottom of the item is in direct contact with the cold air.

[0020] Compared with related technologies, the air-cooled refrigerator and the method for improving freezing capacity provided by the present invention have the following beneficial effects:

[0021] This invention uses a carrier plate with an internal air cavity to support the items. Several air inlets are set on the bearing surface of the carrier plate, and several elastically installed blocking plates are used to block the air inlets. When the items are placed on the surface of the carrier plate, the blocking plates of the parts covered by the items are pressed down, causing the air inlets at the corresponding positions of the items to open. Cold air is sprayed upward from the bottom of the items, and the items are quickly surrounded by cold air, resulting in fast cooling and high utilization of the cold source. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is one of the schematic diagrams of the cooling air assembly structure of the present invention;

[0024] Figure 3 This is a second schematic diagram of the cooling air assembly structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the multi-position insertion structure of the material loading assembly of the present invention;

[0026] Figure 5 This is a schematic diagram of the air duct structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the socket assembly and plug-in assembly structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the through hole and annular structure of the present invention;

[0029] Figure 8 This is a schematic diagram of the material loading assembly structure of the present invention;

[0030] Figure 9 This is a schematic diagram of the card slot and card block adapter structure of the present invention;

[0031] Figure 10 This is a schematic diagram of the corner bracket installation structure of the present invention.

[0032] Numbered in the diagram: 1. Refrigerator body; 2. Feeding assembly; 21. Carrier plate; 22. Air cavity; 23. Through hole; 24. Ring opening; 25. Partition; 26. Protrusion; 27. Air inlet; 28. Block; 29. ​​Carrier plate; 3. Panel; 31. Air duct; 4. Limiting strip; 41. Slot; 42. Locking block; 43. Press handle; 44. Movable cavity; 45. Corner bracket; 5. Refrigeration assembly; 51. Fan; 6. Return air inlet; 7. Socket assembly; 71. Socket; 72. Baffle; 73. Electrical connector strip; 8. Plug assembly; 81. Insertion tube; 82. Extension; 83. Electrical connector piece; 84. Light strip. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0034] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0035] Example 1

[0036] like Figure 1-5 As shown, the air-cooled refrigerator includes a refrigerator body 1, which has a receiving cavity and a back cavity. The receiving cavity is equipped with a door at the front and the back cavity is located at the rear of the receiving cavity.

[0037] The cooling unit includes a panel 3, which is used to separate the receiving cavity and the back cavity. An air duct 31 is opened inside the panel 3. A fan 51 is installed in the back cavity. The exhaust end of the fan 51 is connected to the air duct 31 to deliver airflow into the air duct 31. A refrigeration component 5 is set at the air inlet of the fan 51. The refrigeration component 5 uses existing refrigerator refrigeration components such as evaporator, compressor, and capillary tube. A return air vent 6 is set at the top of the panel 3. The return air vent 6 is connected to the back of the refrigeration component 5 through a pipe.

[0038] A multi-layer material-carrying assembly 2 is provided in the receiving cavity of the refrigerator body 1. The bottom layer material-carrying assembly 2 is embedded in the bottom surface of the receiving cavity, and the upper material-carrying assembly 2 forms a layered material-carrying shape.

[0039] like Figure 7-8 As shown, the material carrier assembly 2 includes a carrier plate 21. The interior of the carrier plate 21 has an air cavity 22. The air cavity 22 is divided into multiple spaces connected in series by a partition 25. The air cavity 22 is connected to the air duct 31. Several air inlets 27 that penetrate the air cavity 22 are evenly opened on the upper surface of the carrier plate 21. Several blocking plates 28 that are aligned with the air inlets 27 are evenly distributed in the air cavity 22. The bottom of the blocking plate 28 is connected to the carrier plate 21 by a spring. A carrier plate 29 is fixed on the upper part of the blocking plate 28. The carrier plate 29 protrudes from the upper surface of the carrier plate 21.

[0040] The item is placed on the surface of the carrier plate 21. The item presses down on the carrier plate 29 covering the area. The carrier plate 29 and the blocking plate 28 are pressed down and overcome the elasticity to drop, so that the air inlet 27 of the area covered by the item is opened. The fan 51 drives the airflow into the air duct 31. The cooling component 5 cools the airflow to form cold air. The cold air enters the air cavity 22 and is then sprayed upward from the opened air inlet 27. The area covered by the item is covered by the sprayed cold air, and the cooling speed is relatively fast. The airflow in the cavity is guided back to the rear of the cooling component 5 through the return air port 6 to realize the airflow circulation cooling conduction.

[0041] A temperature sensor is installed inside the containment cavity. When the temperature inside the containment cavity reaches a set value, the fan 51 and the cooling component 5 stop supplying cold air.

[0042] The blocking plate 28 is a frustum-shaped cone with a smaller top and a larger bottom. The air inlet 27 is a hole that fits the blocking plate 28, so that the blocking plate 28 can be precisely aligned and sealed to the air inlet 27. When the blocking plate 28 is pressed into the air cavity 22, the inclined surface of the blocking plate 28 can conduct airflow upward and reduce the resistance to airflow. The carrier plate 29 is a frustum-shaped cone with a larger top and a smaller bottom, so that the gas discharged from the air inlet 27 can be dispersed in all directions and cool the items evenly.

[0043] A number of spherical protrusions 26 are uniformly fixed on the upper surface of the carrier plate 21. The air inlet 27 is located in the gap between the protrusions 26. The protrusions 26 are set to support the items and reserve conduction space for the gas discharged from the air inlet 27.

[0044] A ring opening 24 is made at the top corner of the upper surface of all carrier plates 21. The ring opening 24 passes through the ventilation cavity 22. When no items are placed on the surface of the carrier plate 21, cold air is conducted into the cavity through the ring opening 24 to ensure that there is a cooling source in the cavity.

[0045] Except for the bottommost carrier plate 21, the other carrier plates 21 have through holes 23 at the top corners of their surfaces. These holes are used to circulate air between the upper and lower spaces of the carrier plates 21, allowing the entire cavity to be cooled. They are also used to conduct gas upwards, so that all the gas can be discharged and circulated from the return air vent 6.

[0046] Example 2

[0047] Except for the bottommost material-carrying component 2, which is fixed in position, the other material-carrying components 2 can be adjusted up and down to change the division of the cavity space and adapt to the cold storage of objects of different volumes.

[0048] like Figure 1 , 4 As shown in Figure 6, several sets of limiting strips 4 are fixed on the side wall of the receiving cavity. Each set of limiting strips 4 has two strips. The two sides of the carrier plate 21 are slidably inserted between the limiting strips 4 to limit the height of the carrier plate 21.

[0049] Multiple rows of socket components 7 are provided on the surface of panel 3. The height of the socket components 7 corresponds to the height of the limiting strip 4. A row of plug-in components 8 is provided at the inner end of the carrier plate 21. After the carrier plate 21 is repositioned, it is plugged into the socket components 7 through the plug-in components 8, so that the air cavity 22 is connected to the ventilation duct 31.

[0050] The socket assembly 7 includes a socket 71 formed on the surface of the panel 3, the socket 71 passes through the ventilation channel 31, and a baffle 72 is elastically installed in the ventilation channel 31 by a spring. The plug assembly 8 includes a plug tube 81 adapted to the socket 71, the plug tube 81 passes through the ventilation cavity 22, and an extension 82 is fixed at the end of the plug tube 81.

[0051] The carrier plate 21 is repositioned and restricted within the limiting strip 4. The carrier plate 21 is continuously pushed so that the insertion tube 81 is inserted into the aligned insertion hole 71. The extension 82 squeezes the baffle 72, so that the baffle 72 overcomes the elastic force and contracts. The insertion tube 81 passes through the air passage 31 to achieve air passage. The insertion holes 71 that are not connected in other positions are blocked by the baffle 72 to prevent air leakage.

[0052] like Figure 6 As shown, electrical contact pieces 83 are installed on the outer walls of two of the insertion tubes 81, and light strips 84 are provided on the surface of the carrier plate 21. The two circuits of the light strips 84 are respectively connected to the electrical contact pieces 83. In each set of sockets 71, two of the sockets 71 are provided with electrical strips 73. The electrical strips 73 are connected to the circuit of the refrigerator body 1. When the insertion tube 81 is inserted into the socket 71, the electrical contact piece 83 contacts the electrical strip 73, so that the circuit of the light strip 84 is connected, and the light strip 84 illuminates to indicate that the insertion tube 81 is inserted into the socket 71.

[0053] like Figure 9-10 As shown, a right-angled movable cavity 44 is opened at the top corner of the carrier plate 21 near the box door. An angle bracket 45 is installed in the movable cavity 44 by means of a torsion spring. A locking block 42 is fixed at the end of the angle bracket 45. The locking block 42 penetrates the bottom of the carrier plate 21 near the limit strip 4. A slot 41 is opened on the surface of the limit strip 4. A pressure handle 43 is fixed on the surface of the angle bracket 45. The pressure handle 43 protrudes from the bottom surface of the carrier plate 21 near the box door.

[0054] The front and rear positions of the carrier plate 21 are limited by the matching and engagement of the locking block 42 and the locking slot 41. When the carrier plate 21 is repositioned, the user holds the edge of the carrier plate 21 and presses the handle 43 with his hand, so that the corner bracket 45 swings upward against the spring force. The locking block 42 is withdrawn from the locking slot 41, releasing the limitation on the carrier plate 21. The carrier plate 21 is then pulled out from the limiting strip 4. After the carrier plate 21 is repositioned and inserted into the limiting strip 4, it is repositioned and fixed by the matching and engagement of the locking block 42 and the locking slot 41.

[0055] Example 3

[0056] The specific steps of the method for improving the freezing capacity of the air-cooled refrigerator are as follows:

[0057] A. The blocking plate 28, under the action of elasticity, blocks the air inlet 27, making the air cavity 22 a sealed space;

[0058] B. When the item is placed on the surface of the carrier plate 21, the carrier plate 29 carrying the item pushes the blocking plate 28 to move downward against the elastic force, opening the air inlet 27.

[0059] C. Cold air is delivered into the air cavity 22 through the cold air assembly, and the cold air is discharged from the open air inlet 27, so that the bottom of the item is in direct contact with the cold air.

Claims

1. A frost-free refrigerator, characterized in that, include: The refrigerator body (1) has a receiving cavity and a back cavity; The material-carrying assembly (2) consists of multiple layers of material-carrying assemblies (2) arranged upwards from the bottom of the refrigerator body (1) cavity, used to carry items; The cold air assembly is placed in the back cavity and is used to deliver cold air to the material carrier assembly (2); The material carrier assembly (2) includes a carrier plate (21). The interior of the carrier plate (21) has an air cavity (22) that connects to the cold air assembly. Several air inlets (27) that pass through the air cavity (22) are evenly opened on the upper surface of the carrier plate (21). Several blocking plates (28) that are aligned with the air inlets (27) are evenly distributed in the air cavity (22). The blocking plates (28) are connected to the carrier plate (21) by springs. The blocking plates (28) are blocked upward by the elastic force and the air inlets (27) are blocked. A carrier plate (29) is fixed on the upper part of the blocking plate (28). The carrier plate (29) protrudes from the upper surface of the carrier plate (21). The carrier plate (29) is pushed by the pressure of the object to push the blocking plate (28) to overcome the elastic force and descend, so that the air inlets (27) are opened and cold air is delivered.

2. The air-cooled refrigerator according to claim 1, characterized in that, A number of protrusions (26) are uniformly fixed on the upper surface of the carrier plate (21), and the air inlet (27) is located in the gap between the protrusions (26).

3. The air-cooled refrigerator according to claim 1, characterized in that, The upper surface of the carrier plate (21) is provided with an annular opening (24), which passes through the air cavity (22). The surface of the carrier plate (21) in the refrigerator body (1) that is not at the bottom is provided with a through hole (23), which passes through the upper and lower spaces of the carrier plate (21).

4. The air-cooled refrigerator according to claim 1, characterized in that, The cooling air assembly includes a panel (3), which is used to separate the receiving cavity and the back cavity. The panel (3) has an air duct (31) inside. The panel (3) is provided with a socket assembly (7) on its surface. The end of the carrier plate (21) is provided with a plug-in assembly (8) adapted to the socket assembly (7). The air cavity (22) is connected to the air duct (31) through the socket assembly (7) and the plug-in assembly (8). A fan (51) is provided in the back cavity. The fan (51) delivers airflow into the air duct (31). A cooling assembly (5) is provided at the air inlet of the fan (51). A return air port (6) is provided on the upper part of the panel (3). The return air port (6) is used to deliver air inside the receiving cavity to the back of the cooling assembly (5).

5. The air-cooled refrigerator according to claim 4, characterized in that, The panel (3) has several sets of socket assemblies (7) arranged vertically on its surface. The side wall of the receiving cavity is provided with several sets of limiting strips (4). The side of the material loading assembly (2) is slidably inserted into the limiting strips (4) so ​​that the plugging assembly (8) is aligned with the socket assembly (7).

6. The air-cooled refrigerator according to claim 5, characterized in that, The socket assembly (7) includes a socket (71) formed on the surface of the panel (3), the socket (71) passes through the air duct (31), a baffle (72) is elastically installed in the air duct (31) by a spring, the baffle (72) blocks the socket (71) under the action of elastic force, the plug assembly (8) includes a plug tube (81) adapted to the socket (71), the plug tube (81) passes through the air cavity (22), the end of the plug tube (81) has an extension (82), when the plug tube (81) is inserted into the socket (71), the extension (82) first contacts and squeezes the baffle (72).

7. The air-cooled refrigerator according to claim 6, characterized in that, The outer wall of the insertion tube (81) is provided with an electrical contact piece (83), the surface of the carrier plate (21) is provided with a light strip (84), the circuit of the light strip (84) is connected to the electrical contact piece (83), the insertion hole (71) is provided with an electrical contact strip (73), when the insertion tube (81) is inserted into the insertion hole (71), the electrical contact piece (83) contacts the electrical contact strip (73).

8. The air-cooled refrigerator according to claim 5, characterized in that, The top corner of the carrier plate (21) has a movable cavity (44). A corner bracket (45) is installed in the movable cavity (44) by means of a torsion spring. A locking block (42) is fixed at the end of the corner bracket (45). The locking block (42) penetrates the bottom of the carrier plate (21). A slot (41) is provided on the surface of the limiting strip (4). The locking block (42) is adapted to engage with the slot (41). A pressure handle (43) is fixed on the surface of the corner bracket (45). The pressure handle (43) protrudes from the bottom surface of the carrier plate (21).

9. A method for improving the freezing capacity of a frost-free refrigerator based on any one of claims 1-8, characterized in that, The specific steps are as follows: A. The blocking plate (28) is blocked by the elastic force of the air inlet (27), so that the air cavity (22) forms a closed space; B. The item is placed on the surface of the carrier plate (21). The carrier plate (29) supporting the item pushes the blocking plate (28) to move downward against the elastic force, opening the air inlet (27); C. Cold air is delivered into the air cavity (22) through the cold air assembly, and the cold air is discharged from the open air inlet (27), so that the bottom of the item is in direct contact with the cold air.

Images