Inner tank structure and refrigeration storage equipment

Abstract

The present invention discloses an inner liner structure and a refrigeration storage device, wherein the inner liner structure comprises: an inner liner arranged in the refrigeration storage device, the inner liner having an opening at the top and an air outlet at the bottom, and return air outlets at all directions of the inner liner side wall. The design of the inner liner structure with air outlet at the bottom and return air around the sides proposed by the present invention can ensure that the air flowing out of the inner liner is returned into the inner liner from the return air outlets at all directions around the inner liner after heat exchange, thereby ensuring the temperature balance at all places inside the inner liner.

Description

Technical Field

[0001] The invention relates to the field of refrigeration, and in particular to an inner tank structure and a refrigeration storage device. Background Art

[0002] With the development of technology and the diversification of people's needs, cylindrical upright refrigerators have appeared on the market. In order to facilitate the placement of items, designers will set doors in multiple directions on the cylindrical surface outside the refrigerator. In order to design multiple doors on the cylindrical surface, the evaporator, air outlet channel, and return air channel are generally integrated on the column in the center of the cylindrical refrigerator to reserve enough space. However, because the position of the air outlet channel and the return air channel is fixed in the center of the refrigerator, the air outlet and return air directions in the refrigerator are fixed, resulting in uneven refrigeration inside the refrigerator. Summary of the invention

[0003] In order to solve the technical problem of uneven temperature inside a refrigerator in the prior art, the present invention provides an inner tank structure and a refrigeration storage device.

[0004] The technical solution adopted by the present invention is:

[0005] The present invention proposes an inner tank structure and a refrigeration storage device. The inner tank structure comprises: an inner tank arranged in the refrigeration storage device, the inner tank having an opening at the top and an air outlet at the bottom, and return air outlets at all directions of the inner tank side wall.

[0006] Furthermore, the return air ports are evenly arranged along the circumference of the inner tank.

[0007] Furthermore, the plurality of return air outlets are arranged in a circle along the circumferential direction, and a plurality of circles are arranged at intervals along the axial direction of the inner tank.

[0008] The inner tank structure further includes: an air duct assembly arranged at the bottom of the inner tank and covering the air outlet, a plurality of air duct inlets are arranged on the side of the air duct assembly, and an air duct outlet is arranged at the bottom of the air duct assembly facing the air outlet.

[0009] The refrigeration storage device comprises: a box body and a box cover, and also comprises the liner structure mentioned above.

[0010] In one embodiment, the top of the box is open, the inner liner is arranged inside the box, there is a first gap between the side wall of the inner liner and the side wall of the box, there is a second gap between the bottom of the inner liner and the bottom of the box, and the first gap is connected to the second gap to form an air duct.

[0011] In one embodiment, the evaporator of the refrigeration storage device is disposed in the first gap, and the heat exchange tube of the evaporator is disposed around the inner tank and there is a gap between the evaporator and the outer wall of the inner tank.

[0012] Furthermore, a fan assembly is provided in the second gap.

[0013] In one embodiment, the fan assembly includes: a fan and a support frame, the fan is located below the air outlet, and the support frame is located at the bottom of the box for placing the fan.

[0014] Furthermore, when the compressor of the refrigeration storage device is started, the rotation speed of the fan assembly is ω1, and when the compressor of the refrigeration storage device is stopped, the rotation speed of the fan is ω2, and ω1>ω2.

[0015] In one embodiment, the box cover includes: a fixed cover body for placing the refrigeration component, and a movable cover body that can be flipped up and down to open or close the box body.

[0016] In one embodiment, the refrigeration storage device is a refrigerator.

[0017] Compared with the prior art, the design of bottom air outlet and surrounding air return of the inner tank structure proposed in the present invention can ensure that the air flowing out from the inner tank is returned into the inner tank from the return air ports in all directions around the inner tank after heat exchange, thereby ensuring the temperature balance everywhere inside the inner tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 Schematic diagram of the three-dimensional structure of the inner container in an embodiment of the present invention;

[0020] Figure 2 A top view of an inner container according to an embodiment of the present invention;

[0021] Figure 3 Schematic diagram of the three-dimensional structure of the air duct assembly in an embodiment of the present invention;

[0022] Figure 4 A bottom perspective view of an air duct assembly according to an embodiment of the present invention;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of a refrigeration storage device (refrigerator) in an embodiment of the present invention;

[0024] Figure 6 A top view of a refrigeration storage device (refrigerator) in an embodiment of the present invention (the air duct component is stripped of the disc);

[0025] Figure 7 It is a schematic diagram of the structure of the support frame in an embodiment of the present invention;

[0026] Figure 8 Schematic diagram of the structure of the heat exchange tube in the embodiment of the present invention;

[0027] Fig. 9 It is a schematic diagram of the structure of the protective cover in an embodiment of the present invention;

[0028] 1. Inner tank; 11. Return air outlet; 12. Air outlet; 2. Air duct assembly; 21. Air duct inlet; 22. Air duct outlet; 3. Centrifugal fan; 4. Support frame; 5. Heat exchange tube; 6. Box body; 7. Movable cover body; 8. Fixed cover body; 9. Protective cover. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] With the development of technology and the diversification of people's needs, cylindrical upright refrigerators have appeared on the market. In order to facilitate the placement of items, designers will set doors in multiple directions on the cylindrical surface outside the refrigerator. In order to design multiple doors on the cylindrical surface, the evaporator, air outlet channel, and return air channel are generally integrated on the column in the center of the cylindrical refrigerator to reserve enough space. However, because the position of the air outlet channel and the return air channel is fixed in the center of the refrigerator, the air outlet and return air directions in the refrigerator are fixed, resulting in uneven refrigeration inside the refrigerator.

[0031] In order to solve the technical problem of uneven refrigeration inside the existing cylindrical upright refrigerator mentioned above, the present invention proposes an inner tank structure, including: an inner tank 1 arranged in a refrigeration storage device, the top opening of the inner tank is used for taking and placing various items, the bottom is provided with an air outlet 12, and the side wall of the inner tank is provided with a return air outlet 11 in all directions. The design of bottom air outlet and surrounding air return can ensure that the air inside the inner tank flows out and then flows back into the inner tank from the return air outlets in all directions around the inner tank after heat exchange, thereby ensuring that the temperature inside the inner tank is balanced.

[0032] The principle and structure of the present invention are described in detail below with reference to the accompanying drawings and embodiments.

[0033] Specific as Figure 1-Figure 2As shown, the inner liner 1 is cylindrical with an open top, and items are taken out and stored from the open end. A plurality of circular return air vents 11 are evenly spaced along the circumference on the side wall of the inner liner, forming a circle and all the return air vents 11 on the circle are in the same horizontal plane. Moreover, there is not only one circle of return air vents 11 on the side wall of the inner liner, but multiple circles of return air vents 11 are evenly spaced along the axial direction of the inner liner 1. Therefore, the cylindrical inner liner 1 and the return air vents 11 on the entire cylindrical side can allow wind to enter the interior of the inner liner 1 from all directions around, thereby achieving a balanced temperature inside the inner liner. A circular air outlet 12 is provided in the center of the bottom of the inner liner 1, and the diameter of the air outlet 12 is smaller than the diameter of the bottom surface of the inner liner 1.

[0034] An air duct assembly 2 is provided at the air outlet 12, which can prevent the cold air from flowing out directly from the air outlet 12 at the bottom after entering the inner liner, but allows the cold air to fully flow through the inner liner and stay in the inner liner for a sufficient time before flowing out from the air duct assembly 2 in an orderly and uniform manner. Specifically, in order to simplify the design, reduce costs, and promote it widely, Figure 3-Figure 4 As shown, the air duct assembly 2 in this embodiment is disc-shaped, and is composed of a disc, a ring piece and a plurality of separators. The outer diameter of the ring piece is consistent with the diameter of the disc, and the separator is arranged perpendicular to the ring piece. The length of the separator is equal to the ring width (radius difference) of the ring piece, so one end of the separator coincides with the inner circle edge of the ring piece and the other end coincides with the outer circle edge. A plurality of separators evenly divide the ring piece into multiple areas, and each separator does not contact each other. The disc covers the top of the separator, and the center of the disc coincides with the center of the ring piece, so the ring piece, the disc and the plurality of separators constitute an air duct assembly with multiple air ducts evenly arranged inside. The air duct inlets 21 of the air ducts are all arranged on the side of the air duct assembly, and all the air ducts share an air duct outlet 22, and the air duct outlet 22 is at the bottom center of the air duct assembly 2 (the opening in the middle of the ring piece). When placed, as Figure 5 and Figure 6 As shown, the duct assembly 2 should be placed on the circular air outlet 12 at the bottom of the inner liner 1, and the center of the duct outlet 22 should correspond to the center of the air outlet 12. Because the diameter of the duct assembly 2 is larger than the diameter of the air outlet 12, the duct assembly 2 completely covers the air outlet 12, so the air in the inner liner can only flow into the various ducts in the duct assembly from the duct inlet on the side of the duct assembly, and then flow out from the duct outlet at the bottom of the duct assembly. At the same time, the duct assembly also increases the stability of the inner liner, and it will not deform after placing items in the inner liner.

[0035] The above also proposes a refrigeration storage device using the liner structure described above. The refrigeration storage device can be a refrigerator or a freezer. In this embodiment, the refrigeration storage device is a refrigerator.

[0036] Specific as Figure 5-Figure 9As shown, the refrigerator box body 6 in this embodiment is also cylindrical with an open top, the inner tank 1 is arranged inside the box body 6, the top of the inner tank 1 is folded outward, and the inner tank 1 is fixed to the top of the box body 6 by this flange structure. There is a first gap between the side wall of the inner tank and the side wall of the box body, and there is a second gap between the bottom of the inner tank and the bottom of the box body, and the first gap is connected to the second gap to form an air duct. The heat exchange tube 5 of the evaporator is arranged in the first gap, and the heat exchange tube 5 is arranged from the bottom of the inner tank 1 to the top, and there is a gap between the heat exchange tube 5 and the outer wall of the inner tank 1. In order to make the air energy in the inner tank flow into the air duct continuously for heat exchange and then enter the inner tank, a fan assembly is arranged in the second gap. The fan assembly includes: a centrifugal fan 3 and a support frame 4 for placing the fan. The centrifugal fan 3 is located directly below the air duct outlet 22. When the centrifugal fan 3 rotates, the air in the inner tank can flow from the air duct assembly 2 into the gap for heat exchange. The annular support frame 4 is arranged at the bottom of the box body and the middle part of the support frame and the air duct are connected. The support frame 4 also increases the stability of the inner tank 1 and reduces the probability of deformation of the inner tank 1 due to the placement of internal objects.

[0037] In addition, a box cover is provided at the top of the box body. Specifically, a fixed cover body 8 and a movable cover body 7 that can be turned up and down are provided at the top, and the movable cover body 7 is used to open and close the refrigerator when taking and placing items. The fixed cover body 8 and the movable cover body 7 each occupy half of the space at the opening end, and a compressor and a condenser are provided on the fixed cover body 8. A protective cover 9 is provided above the compressor and the condenser to prevent the compressor and the condenser from being damaged.

[0038] In order to prevent the temperature difference in the vertical direction caused by the sinking of cold air when the compressor is stopped, the speed of the centrifugal fan is controlled to ω2 when the compressor is stopped, and the speed of the centrifugal fan is controlled to ω1 when the compressor is working, and ω1>ω2.

[0039] Therefore, when the centrifugal fan rotates, the air in the inner tank enters the air duct inside the air duct assembly from the air duct inlet on the side of the air duct assembly, and then flows into the air duct between the cabinet and the inner tank from the air duct outlet at the bottom of the air duct assembly, exchanges heat with the heat exchange tube in the air duct, and then enters the inner tank from the return air port on the side wall of the inner tank. The process of gas circulation continues in this way during the operation of the refrigerator. The cylindrical inner tank ensures that air can enter and exit from all directions in the inner tank, ensuring the balance of temperature inside the inner tank.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Inner tank structure, including: An inner tank arranged in a refrigeration storage device, characterized in that the inner tank has an opening at the top and an air outlet at the bottom, and return air outlets are arranged in all directions of the inner tank side wall; It also includes: an air duct assembly arranged at the bottom of the inner tank and covering the air outlet, a plurality of air duct inlets are arranged on the side of the air duct assembly, and an air duct outlet facing the air outlet is arranged at the bottom of the air duct assembly; The air in the inner tank flows into each air duct in the air duct assembly from the air duct inlet on the side of the air duct assembly, and then flows out from the air duct outlet at the bottom of the air duct assembly and flows out through the air outlet.

2. The liner structure according to claim 1, characterized in that: The inner container is cylindrical, and the return air ports are evenly arranged along the circumference of the inner container.

3. The liner structure according to claim 2, characterized in that: The plurality of return air ports are arranged in a circle along the circumferential direction, and a plurality of circles are arranged at intervals along the axial direction of the inner tank.

4. Refrigeration storage equipment, including: The box body and the box cover are characterized by further comprising the inner liner structure described in any one of claims 1-3.

5. The refrigeration storage device according to claim 4, characterized in that: The top of the box is open, the inner liner is arranged inside the box, there is a first gap between the side wall of the inner liner and the side wall of the box, there is a second gap between the bottom of the inner liner and the bottom of the box, and the first gap is connected to the second gap to form an air duct.

6. The refrigeration storage device according to claim 5, characterized in that: The evaporator of the refrigeration storage device is arranged in the first gap, and the heat exchange tube of the evaporator is arranged around the inner tank and there is a gap between the evaporator and the outer wall of the inner tank.

7. The refrigeration storage device according to claim 5, characterized in that: A fan assembly is arranged in the second gap.

8. The refrigeration storage device according to claim 7, characterized in that: The fan assembly comprises: a fan and a support frame, wherein the fan is located below the air outlet, and the support frame is located at the bottom of the box body for placing the fan.

9. The refrigeration storage device according to claim 7, characterized in that: When the compressor of the refrigeration storage device is started, the rotation speed of the fan assembly is ω1, and when the compressor of the refrigeration storage device is stopped, the rotation speed of the fan assembly is ω2, and ω1>ω2.

10. The refrigeration storage device according to claim 4, characterized in that: The box cover comprises: a fixed cover body for placing the refrigeration assembly, and a movable cover body which can be turned upside down to open or close the box body.

11. The refrigeration storage device according to claim 4, characterized in that: The refrigeration storage device is a refrigerator.

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