Air-cooled refrigerator with internal circulation of cold air

Abstract

The application provides a wind-cooled refrigerator with cold air internal circulation, which comprises a cabinet and a refrigerating device for outputting cold air, wherein: the cabinet has an equipment installation area and an article storage area inside, the refrigerating device is installed in the equipment installation area, a plurality of parallelly arranged flow guide grooves are arranged on the top surface of the cabinet and linearly extend from the equipment installation area to the article storage area; the top of the refrigerating device is provided with a cold air outlet, the position close to the bottom of the refrigerating device is provided with an air return port, and the two sides of the refrigerating device are respectively provided with air supplement ports at the positions between the cold air outlet and the air return port. The application can effectively guarantee the uniformity of the distribution of cold air in the cabinet, reduce the overall temperature difference coefficient, avoid the problem that the refrigeration effect is affected due to the fact that the air port is blocked by articles in the cabinet, and also avoid the problem that the service life of the refrigerating device is reduced due to the fact that the operation rate is too high and the refrigerating device is in a long-term working state.

Description

Technical Field

[0001] This invention relates to the field of refrigeration system technology, and more specifically to an air-cooled freezer that achieves internal circulation of cold air. Background Technology

[0002] With the development of the times, people's living standards have greatly improved. In the past, food lacked proper storage facilities, making it prone to spoilage. Now, freezers provide an excellent environment for food preservation. Freezers are now ubiquitous in people's daily lives, with various types emerging, including air-cooled and direct-cooled models. Currently, air-cooled freezers dominate the market due to their superior performance. However, most existing technologies use side-venting designs, resulting in limited storage space, potential air vent blockage, and reduced cooling efficiency. Summary of the Invention

[0003] In order to solve the technical problems existing in the background art, the present invention proposes an air-cooled freezer that realizes internal circulation of cold air.

[0004] This invention proposes an air-cooled freezer that achieves internal air circulation, comprising: a cabinet and a refrigeration device for outputting cold air, wherein:

[0005] The cabinet has an equipment installation area and an item storage area. The refrigeration unit is installed in the equipment installation area. The top surface of the cabinet has multiple parallel airflow channels that extend linearly from the equipment installation area to the item storage area. The top of the refrigeration unit has a cold air outlet, and the bottom of the refrigeration unit has a return air vent.

[0006] Preferably, the refrigeration unit has make-up air inlets on both sides of the location between its cold air outlet and its return air inlet.

[0007] Preferably, a raised portion B is provided inside the guide channel and between its two ends to form a lateral obstruction.

[0008] Preferably, the height of the raised portion B is lower than the depth of the guide groove.

[0009] Preferably, the inner top surface of the cabinet is provided with multiple linearly extending raised portions A, all of which are arranged side by side and a gap is reserved between any two adjacent raised portions to form a guide channel.

[0010] Preferably, the refrigeration device includes an outer casing and a refrigeration component and a fan installed inside the outer casing. A guide plate is provided inside the refrigeration device and between the cold air outlet and the fan. The guide plates are arranged at intervals from the center of the fan to both sides, and the span of all the guide plates exceeds the area where the fan is located.

[0011] Preferably, the outer casing includes a main housing and an air duct plate. The refrigeration components and the fan are installed inside the main housing. The air duct plate is located below the main housing on the side closest to the storage area and is fixed to the main housing. The return air vent is located on the air duct plate, and the air duct plate has an air duct that connects the return air vent and the housing.

[0012] Preferably, a raised portion C is provided at the port where the air duct connects to the main housing.

[0013] Preferably, an airflow guide plate is provided above the raised portion C, with its lowest end facing the interior of the main housing.

[0014] Preferably, the side wall of the main body near the storage area of ​​the items has a cavity.

[0015] Preferably, a gap is reserved between the deflector and the cold air outlet to form a mixing air duct.

[0016] In this invention, a guide channel is provided on the top surface of the cabinet body. A raised portion B is provided in the guide channel between its two ends to form a lateral obstruction. The cold air outlet is located at the top of the refrigeration unit, and the return air inlet is located near the bottom of the refrigeration unit. Make-up air inlets are provided at the cold air outlet and the return air inlet, so that the cold air is blown from the cold air outlet at the top to the top of the cabinet body, flows along the guide channel to the opposite side, and flows back into the refrigeration unit through the return air inlet at the bottom. This allows the cold air to quickly fill the entire internal space, avoiding the impact of the refrigeration effect due to items blocking the air outlets inside the cabinet. It ensures the uniformity of the distribution of cold air inside the cabinet, greatly reduces the overall temperature difference coefficient, and avoids the refrigeration unit from reducing its service life due to excessive operating rate and long-term working state. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the appearance of an air-cooled freezer that achieves internal air circulation according to the present invention.

[0018] Figure 2 This is a schematic diagram of the installation of the refrigeration device inside the cabinet body in an air-cooled freezer that realizes internal air circulation, as proposed in this invention.

[0019] Figure 3 This is a schematic diagram of the internal structure of the refrigeration device in an air-cooled freezer that achieves internal air circulation, as proposed in this invention.

[0020] Figure 4 for Figure 3 A magnified view of a portion of the image.

[0021] Figure 5 This is a schematic diagram showing the location of the air supply vent in an air-cooled freezer that achieves internal air circulation, as proposed in this invention.

[0022] Figure 6This is a schematic diagram of the assembly of the air guide plate and the fan in an air-cooled freezer that realizes internal air circulation according to the present invention.

[0023] Figure 7 This is a schematic diagram of the structure of the top surface of the cabinet body in an air-cooled freezer that achieves internal air circulation, as proposed in this invention.

[0024] Figure 8 This is a schematic diagram of the structure of the raised portion A and raised portion B in an air-cooled freezer that realizes internal circulation of cold air according to the present invention. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Example 1, referring to Figure 1-8 The present invention proposes an air-cooled freezer that realizes internal air circulation, comprising: a cabinet 1 and a refrigeration device for outputting cold air, wherein:

[0027] The cabinet 1 has an equipment installation area and a storage area. The refrigeration unit is installed in the equipment installation area. The inner top surface of the cabinet 1 has multiple parallel-arranged airflow channels that extend linearly from the equipment installation area to the storage area. Specifically, the inner top surface of the cabinet 1 has multiple linearly extending raised sections A10. All raised sections A10 are arranged side-by-side, with a gap between any two adjacent raised sections to form airflow channels. The airflow channels allow cold air to quickly reach the farthest corner of the cabinet.

[0028] The refrigeration unit has a cold air outlet 21 at the top and a return air inlet 23 near its bottom. This allows cold air to be blown from the top cold air outlet towards the top of the cabinet, flow along the guide channel to the opposite side, and return to the refrigeration unit through the bottom return air inlet 23. This ensures that the cold air quickly fills the entire interior space, and the cooling effect is not affected by items blocking the air outlet. Simultaneously, the refrigeration unit has supplementary air inlets 22 on both sides between its cold air outlet 21 and return air inlet 23 to compensate for temperature differences in the side corners and to supplement cold air to the central area of ​​the cabinet, addressing the issue of insufficient cooling in that area.

[0029] In addition, a raised section B9 is provided in the guide channel and between its two ends to form a lateral obstruction. The raised section B9 can make the cold air pass over the raised section B9 and continue to move forward after being blocked by the raised section B9, while the part is blocked by the raised section B9 and changes the flow direction and blows downwards. This ensures the uniformity of cold air distribution in the cabinet and improves the cooling efficiency, while preventing the cold air from being directly transported to the opposite position along the guide channel, thus avoiding insufficient cold air on the side where the return air vent 23 is located.

[0030] Specifically: the height of the raised section B9 is lower than the depth of the guide channel, so that the cold air in each guide channel is automatically divided into two streams when it enters the raised section B9. One stream passes over the raised section B9 and continues forward, while the other stream changes its flow direction and blows downwards at an angle.

[0031] In this embodiment, the refrigeration device includes a housing 2 and a refrigeration assembly 6 and a fan 7 installed inside the housing 2. A guide plate 8 is provided inside the refrigeration device, located between the cold air outlet 21 and the fan. The guide plates 8 are arranged at intervals from the center of the fan 7 to both sides, and the span of all guide plates 8 exceeds the area where the fan 7 is located. This ensures that when the fan 7 is working, the rotating cold air output by it can be gathered and flow through each flow channel to the cold air outlet A, thus ensuring that the cold air blown out from the cold air outlet A is uniform and strong.

[0032] In this embodiment, the outer casing 2 includes a main housing 201 and an air duct plate 202. The refrigeration component 6 and the fan 7 are both installed inside the main housing 201. The air duct plate 202 is located below the main housing 201 on the side closest to the storage area and is fixed to the main housing 201. A return air vent 23 is located on the air duct plate 202, and an air duct connecting the return air vent 23 and the housing 201 is provided inside the air duct plate 202. A raised portion C5 is provided at the port where the air duct connects to the main housing 201. The raised portion C5 is used to prevent water inside the main housing 201 from flowing into the air duct.

[0033] An airflow guide plate 4 is provided above the raised part C5, with its lowest point facing the interior of the main housing 201. The airflow guide plate 4 allows the airflow in the duct to smoothly enter the main housing 201.

[0034] In this embodiment, the side wall of the main housing 201 near the item storage area has a cavity to form a heat insulation layer between the equipment installation area and the item storage area, thereby reducing the loss of cold air in the item storage area.

[0035] In addition, a gap is reserved between the guide plate 8 and the cold air outlet 21 to form a mixing air duct, so that the cold air changes its flow direction in the mixing air duct after entering it, thereby further ensuring the uniformity of the air outlet.

[0036] Specifically: the distance between the lower end of the guide plate 8 and the fan 7 increases sequentially from the center of the fan 7 to both sides. That is, for any two adjacent guide plates 8, the lower end of the guide plate 8 closer to the center of the fan 7 is above the lower end of the other guide plate 8, so that each guide plate 8 forms a semi-encircling state around the fan 7 at the upper part of the outer periphery of the fan 7, thereby making the cold airflow swirled out by the fan evenly swirled into each flow channel.

[0037] In addition, the cabinet 1 also has an air intake chamber 11 inside, and a gap is reserved between the air intake chamber 11 and the top of the cabinet 1 to form an equipment installation area; a makeup air pipe is provided between the refrigeration device and the air intake chamber 11 to supply fresh air into the refrigeration device.

[0038] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A type of air-cooled freezer that achieves internal air circulation, characterized in that, The utility model relates to a cabinet (1) and a refrigerating device for outputting cold air, wherein: The cabinet (1) has an equipment installation area and an article storage area inside, the refrigerating device is installed in the equipment installation area, the inner top surface of the cabinet (1) is provided with a plurality of parallelly arranged flow guide grooves, the flow guide grooves linearly extend from the equipment installation area to the article storage area; the top of the refrigerating device is provided with a cold air outlet (21), and the refrigerating device is provided with an air return inlet (23) close to the bottom of the refrigerating device; The inner top surface of the cabinet (1) is provided with a plurality of linearly extending raised portions A (10), all the raised portions A (10) are arranged in parallel and have a spacing reserved between any two adjacent raised portions to form the flow guide grooves; The refrigerating device comprises an outer shell (2) and a refrigerating assembly (6) and a fan (7) installed inside the outer shell (2), a flow guide plate (8) is arranged between the cold air outlet (21) and the fan in the refrigerating device, the flow guide plate (8) is arranged at a spacing from the center of the fan (7) to both sides, and the arrangement span of all the flow guide plates (8) exceeds the area where the fan (7) is located; The outer shell (2) comprises a main box body (201) and an air duct plate (202), the refrigerating assembly (6) and the fan (7) are both installed in the main box body (201), the air duct plate (202) is arranged below the side of the main box body (201) close to the article storage area and is fixed with the main box body (201), the air return inlet (23) is arranged on the air duct plate (202), and the air duct plate (202) is provided with an air duct communicating the air return inlet (23) with the main box body (201); The port of the air duct communicating end of the main box body (201) is provided with a raised raised portion C (5). The refrigerating device is provided with a supplementary air inlet (22) on each side of the position between the cold air outlet (21) and the air return inlet (23) of the refrigerating device.

2. The air-cooled chiller that achieves cold gas internal circulation according to claim 1, wherein, The flow guide groove is provided with a raised portion B (9) between both ends of the flow guide groove, the raised portion B (9) forms a transverse block to the flow guide groove, and the raised height of the raised portion B (9) is lower than the depth of the flow guide groove.

3. The air-cooled chiller that achieves cold air internal circulation according to claim 2, wherein The raised portion C (5) is provided with an air inflow plate (4) arranged at an inclination and having a lowest end directed to the inside of the main box body (201).

4. The air-cooled chiller that achieves cold gas internal circulation according to claim 1, wherein, The side wall of the main box body (201) close to the article storage area has a clamping cavity.

5. The air-cooled chiller with internal cold air circulation according to claim 1, wherein The flow guide plate (8) and the cold air outlet (21) are provided with a spacing reserved therebetween to form a mixed air duct.

6. The air-cooled chiller with internal cold air circulation according to claim 1, wherein ​

Images