CN216114897U

CN216114897U - Air-cooled refrigeration equipment

Info

Publication number: CN216114897U
Application number: CN202122127967.4U
Authority: CN
Inventors: 边昭斌; 周文; 宁帅
Original assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-03-22
Anticipated expiration: 2031-09-03
Also published as: WO2023029516A1

Abstract

The utility model belongs to the technical field of refrigeration equipment, and particularly provides air-cooled refrigeration equipment. The utility model aims to solve the problem of incomplete defrosting of the evaporator of the existing air-cooled refrigeration equipment during defrosting. Therefore, the air-cooled refrigeration equipment comprises an equipment body, an evaporator, an evaporation fan, a first air door and a second air door. Wherein, the equipment body is limited with storeroom, refrigeration room, return air wind channel and air supply wind channel, and storeroom and refrigeration room communicate with the return air wind channel respectively, and storeroom, refrigeration room and return air wind channel communicate with the air supply wind channel respectively. The evaporator is disposed within the refrigerated compartment. The evaporation fan is used for conveying air in the refrigerating chamber into the air supply duct. The first air door is used for blocking the communication between the storage chamber and the air supply duct. The second air door is used for blocking the communication between the return air duct and the air supply duct. The air-cooled refrigeration equipment can completely remove frost on the evaporator, and ensures the refrigeration efficiency of the air-cooled refrigeration equipment.

Description

Air-cooled refrigeration equipment

Technical Field

The utility model belongs to the technical field of refrigeration equipment, and particularly provides air-cooled refrigeration equipment.

Background

Air-cooled refrigeration equipment includes refrigerators, freezers, and freezers. In the process of long-term operation of the air-cooled refrigeration equipment, the evaporator of the air-cooled refrigeration equipment often frosts, and the refrigeration efficiency of the air-cooled refrigeration equipment is affected.

In order to secure the refrigerating efficiency of the air-cooling type refrigerating apparatus, the evaporator needs to be heated to melt frost formed on the surface of the evaporator. However, in the prior art, during the process of heating the evaporator (for example, heating the evaporator by an electric heating wire), the evaporator is heated unevenly, so that the defrosting of the evaporator is incomplete.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem of incomplete defrosting of an evaporator of the existing air-cooled refrigeration equipment during defrosting.

To achieve the above object, the present invention provides an air-cooled refrigeration apparatus, comprising:

the equipment body is limited with a storage chamber, a refrigeration chamber, a return air duct and an air supply duct, wherein the storage chamber and the refrigeration chamber are respectively communicated with the return air duct, and the storage chamber, the refrigeration chamber and the return air duct are respectively communicated with the air supply duct;

an evaporator provided in the cooling chamber;

the evaporation fan is used for conveying the air in the refrigerating chamber into the air supply duct;

a first damper for blocking communication between the storage chamber and the supply air duct;

and the second air door is used for blocking the communication between the return air duct and the air supply duct.

Optionally, the air supply duct includes a first air outlet and a second air outlet, the air supply duct communicates with the storage chamber through the first air outlet, the air supply duct communicates with the return air duct through the second air outlet, the first air door is disposed at the first air outlet, and the second air door is disposed at the second air outlet.

Optionally, the air-cooled refrigeration equipment further comprises a first driving device in driving connection with the first damper and a second driving device in driving connection with the second damper, and the first driving device is used for driving the first damper to open and/or close the first air outlet; the second driving device is used for driving the second air door to open and/or close the second air outlet.

Optionally, the air-cooled refrigeration apparatus further comprises a first return holding member for holding the first damper in a position to open or close the first air outlet; the second return holding member is for holding the second damper in a position to open or close the second outlet port.

Optionally, the communication position of the return air duct and the storage chamber is higher than the second air outlet.

Optionally, the return air duct comprises a first return air duct and a second return air duct, one end of the first return air duct is communicated with the storage chamber, and the other end of the first return air duct is communicated with the refrigeration chamber; one end of the second return air duct is communicated with the air supply duct, and the other end of the second return air duct is communicated with the refrigerating chamber; and the second air door is used for blocking the communication between the second return air duct and the air supply duct.

Optionally, the air-cooled refrigeration equipment further comprises a third air door arranged in the return air duct, the third air door is used for dividing the return air duct into a first air duct part and a second air duct part, the first air duct part is communicated with the storage chamber, and the second air duct part is communicated with the refrigeration chamber and the supply air duct.

Optionally, the first drive means and/or the second drive means is a motor.

Optionally, the air-cooled refrigeration appliance is an air-cooled refrigerator.

Optionally, the storage room includes at least one of a refrigerating room, a warming room, and a freezing room.

Based on the foregoing description, it can be understood by those skilled in the art that, in the foregoing technical solution of the present invention, the storage chamber, the refrigeration chamber and the return air duct are respectively communicated with the supply air duct, so that the first air door can block communication between the storage chamber and the supply air duct, and the second air door can block communication between the return air duct and the supply air duct, so that when the air-cooled refrigeration apparatus defrosts the evaporator, the first air door can block communication between the storage chamber and the supply air duct, so that heated air near the evaporator circularly flows along paths of the refrigeration chamber, the supply air duct and the return air duct, thereby continuously blowing the surface of the evaporator, and further completely melting frost on the surface of the evaporator. Therefore, the air-cooled refrigeration equipment can completely eliminate frost on the evaporator, and ensures the refrigeration efficiency of the air-cooled refrigeration equipment.

Furthermore, the third air door is arranged in the return air duct, so that the cold storage, freezing and fresh-keeping effects of stored objects (including food materials, medicines, wine, biological reagents, bacterial colonies, chemical reagents and the like) are prevented from being influenced when hot air in the return air duct enters the storage chamber.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly explain the technical solution of the present invention, some embodiments of the present invention will be described hereinafter with reference to the accompanying drawings. Those skilled in the art will appreciate that elements or portions of the same reference number identified in different figures are the same or similar; the drawings of the utility model are not necessarily to scale relative to each other. In the drawings:

FIG. 1 is a schematic illustration of the effect of an air-cooled refrigeration unit with dampers fully closed according to some embodiments of the present invention;

FIG. 2 is a schematic illustration of the effect of an air-cooled refrigeration unit according to some embodiments of the present invention with a first damper open and a second damper closed;

FIG. 3 is a schematic illustration of the effect of an air-cooled refrigeration unit with a first damper closed and a second damper open according to some embodiments of the present invention;

fig. 4 is a schematic illustration of the effect of an air-cooled refrigeration unit with a first damper closed and a second damper open in accordance with further embodiments of the present invention.

Detailed Description

It should be understood by those skilled in the art that the embodiments described below are only a part of the embodiments of the present invention, not all of the embodiments of the present invention, and the part of the embodiments are intended to explain the technical principles of the present invention and not to limit the scope of the present invention. All other embodiments, which can be obtained by a person skilled in the art based on the embodiments provided by the present invention without inventive effort, shall still fall within the scope of protection of the present invention.

It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

An air-cooled refrigeration unit in accordance with some embodiments of the present invention will now be described in detail with reference to fig. 1 to 3. Fig. 1 is a schematic view of an effect of an air-cooled refrigeration apparatus when dampers are fully closed in some embodiments of the present invention, fig. 2 is a schematic view of an effect of the air-cooled refrigeration apparatus when a first damper is opened and a second damper is closed in some embodiments of the present invention, and fig. 3 is a schematic view of an effect of the air-cooled refrigeration apparatus when the first damper is closed and the second damper is opened in some embodiments of the present invention.

Heretofore, it has been noted that the air-cooled refrigeration apparatus described herein includes air-cooled refrigerators, air-cooled freezers, and the like.

As shown in fig. 1 to 3, in some embodiments of the present invention, an air-cooled type refrigeration apparatus includes an apparatus body 1, an evaporator 2, an evaporation fan 3, a first damper 4, and a second damper 5. The equipment body 1 is limited with a storage chamber 11, a refrigerating chamber 12, a return air duct 13 and an air supply duct 14, the storage chamber 11 and the refrigerating chamber 12 are respectively communicated with the return air duct 13, and the storage chamber 11, the refrigerating chamber 12 and the return air duct 13 are respectively communicated with the air supply duct 14.

Here, the storage room 11 includes at least one of a refrigerating room, a warming room, and a freezing room, the number of which is not limited to only one shown in fig. 1 to 3, and may be any number, such as two, three, five, and the like.

With continued reference to fig. 1-3, an evaporator 2 is disposed within the refrigeration compartment 12 for cooling the air within the refrigeration compartment 12. The evaporation fan 3 is used for conveying air in the refrigeration chamber 12 into the air supply duct 14. Preferably, the evaporation fan 3 is arranged at the air outlet of the cooling chamber 12. The first damper 4 is used to block communication between the storage chamber 11 and the air supply duct 14.

Further, in some embodiments of the present invention, in order to realize the function of heating the evaporator 2, an electric heater may be configured for the evaporator 2, and the evaporator 2 is heated by the electric heater; a condenser may also be provided for the evaporator 2 in the refrigeration compartment 11, so that the evaporator 2 is heated by the condenser; it is also possible to use at least a part of the evaporator 2 as a condenser to heat the evaporator 2.

It should be understood by those skilled in the art that the air-cooled refrigeration apparatus further includes a compressor, a condenser, a condensing fan, etc., and the present invention will not be further described in consideration of the fact that other components of the air-cooled refrigeration apparatus are well known in the art and are not related or directly related to the technical problem to be solved by the present invention.

With reference to fig. 1 to 3, the air supply duct 14 includes a first air outlet 141 and a second air outlet 142, the air supply duct 14 is communicated with the storage compartment 11 through the first air outlet 141, and the air supply duct 14 is communicated with the return air duct 13 through the second air outlet 142. The first damper 4 is disposed at the first air outlet 141, so that the first damper 4 opens or closes the first air outlet 141; the second damper 5 is disposed at the second air outlet 142 such that the second damper 5 opens or closes the second air outlet 142.

Alternatively, the first damper 4 and the second damper 5 are pivotally mounted to the apparatus body 1, so that the first damper 4 closes and opens the first outlet port 141 in a rotating manner, and the second damper 5 closes and opens the second outlet port 142 in a rotating manner.

Although not shown in the drawings, in some embodiments of the present invention, the air-cooled chiller further includes a first drive in driving communication with the first damper 4 and a second drive in driving communication with the second damper 5. The first driving device is used for driving the first damper 4 to open and/or close the first air outlet 141, and the second driving device is used for driving the second damper 5 to open and/or close the second air outlet 142.

Preferably, the first driving means and the second driving means are each a motor fixedly mounted to the apparatus body 1. Specifically, the casing of the motor is fixedly connected with the device body 1, and the rotating shaft of the motor is fixedly connected with the first air door 4 or the second air door 5.

Alternatively, the first driving device and the second driving device may be any other feasible driving device, such as an electromagnetic push rod, as required by those skilled in the art.

Although not shown in the drawings, in some embodiments of the present invention, further optionally, the air-cooling type refrigeration apparatus further comprises a first return holding member for holding the first damper 4 in a position to open or close the first air outlet port 141; the second return holding member is used to hold the second damper 5 in a position to open or close the second air outlet 142. For example, the first damper 4 is rotated from a position closing the first outlet port 141 to a position opening the first outlet port 141 by the first driving means, and is rotated from a position opening the first outlet port 141 to a position closing the first outlet port 141 by the first restoring and holding member. The second damper 5 is rotated by the second driving means from a position closing the second air outlet 142 to a position opening the second air outlet 142, and is rotated by the second return holding member from a position opening the second air outlet 142 to a position closing the second air outlet 142.

The first and second return holding members may be any feasible member, such as a torsion spring, a tension spring, a compression spring, and the like.

The operation mode of the air-cooling type refrigerating apparatus of the present invention will be described in detail with reference to fig. 1 to 3.

As shown in fig. 1, when the temperature in the refrigerating chamber 11 is lowered to a preset temperature (e.g., 0 ℃, 1 ℃ to 16 ℃, 18 ℃, etc.), the evaporator 2 stops cooling, the evaporation fan 3 stops rotating, and the compressor (not shown) stops operating. The first damper 4 closes the first outlet port 141, and the second damper 5 closes the second outlet port 142.

As shown in fig. 2, when the evaporator 2 cools, the first damper 4 opens the first outlet 141, and the second damper 5 continues to close the second outlet 142. The evaporation fan 3 rotates to deliver the air cooled by the evaporator 2 to the supply air duct 14, and then enters the storage chamber 11 through the first air outlet 141. The air in the storage chamber 11 is returned to the refrigerating chamber 12 through the return air duct 13 under the action of the negative pressure. In this process, the flow path of the air is as shown by the arrows in fig. 2.

As shown in fig. 3, when the evaporator 2 defrosts, the first damper 4 closes the first outlet 141, and the second damper 5 opens the second outlet 142. The evaporation fan 3 rotates to deliver the hot air near the evaporator 2 to the supply air duct 14, and then the hot air enters the return air duct 13 through the second air outlet 142 and flows back to the refrigeration compartment 12 under the action of the negative pressure. In this process, the flow path of the air is as shown by the arrows in fig. 3.

In order to prevent the hot air in the return air duct 13 from being convected to the storage chamber 11, as shown in fig. 1 to 3, a connection (shown by a dotted line in fig. 1 to 3) of the return air duct 13 to the storage chamber 11 is made higher than the second air outlet 142 so that a path of the hot air circulation does not pass through the connection.

Further, as shown in fig. 4, in other embodiments of the present invention, a person skilled in the art may also arrange a third damper 6 in the return air duct 13 as needed, and make the third damper 6 divide the return air duct 13 into a first duct portion 131 and a second duct portion 132. As shown in fig. 4, the first air duct portion 131 is communicated with the storage compartment 11, and the second air duct portion 132 is communicated with the cooling compartment 12 and the supply air duct 14, respectively, so that when the evaporator 2 defrosts, the hot air entering the return air duct 13 is isolated in the second air duct portion 132 without convection of the hot air into the storage compartment 11 through the first air duct portion 131. When the evaporator 2 is refrigerating, the third damper 6 opens the return air duct 13, so that the air in the storage compartment 11 can flow into the refrigerating compartment 12 through the return air duct 13.

Although not shown, in other embodiments of the utility model, the third damper 6 is also provided with a drive means (e.g. a motor).

Alternatively, one skilled in the art can also configure the return air duct 13 as two parallel ducts in other embodiments of the present invention, as desired. Specifically, the return air duct 13 includes a first return air duct and a second return air duct, one end of the first return air duct is communicated with the storage chamber 11, and the other end of the first return air duct is communicated with the refrigeration chamber 12; one end of the second return air duct is communicated with the air supply duct 14, and the other end of the second return air duct is communicated with the refrigerating chamber 12. And, the second damper 5 is used to block the communication between the second return air duct and the supply air duct 14. So as to prevent the hot air in the return air duct 13 from being convected into the storage chamber 11 when the evaporator 2 is defrosted.

When the evaporator 2 is refrigerating, the cold air circulates along the following path: the cooling compartment 12 → the blast air duct 14 → the storage compartment 11 → the first return air duct → the cooling compartment 12.

When the evaporator 2 is defrosted, the hot air circulates along the following path: the cooling compartment 12 → the supply air duct 14 → the second return air duct → the cooling compartment 12.

Based on the foregoing description, it can be understood by those skilled in the art that the air-cooled refrigeration apparatus of the present invention can completely remove frost formed on the evaporator 2, and ensure the refrigeration efficiency of the air-cooled refrigeration apparatus.

So far, the technical solution of the present invention has been described in connection with the foregoing embodiments, but it is easily understood by those skilled in the art that the scope of the present invention is not limited to these specific embodiments. Without departing from the technical principle of the present invention, a person skilled in the art may split and combine the technical solutions in the above embodiments, and may make equivalent changes or substitutions for related technical features, and any changes, equivalents, improvements, etc. made within the technical concept and/or technical principle of the present invention will fall within the protection scope of the present invention.

Claims

1. An air-cooled refrigeration apparatus, comprising:

an evaporator provided in the cooling chamber;

2. The air-cooled refrigeration apparatus according to claim 1,

the air supply duct comprises a first air outlet and a second air outlet,

the air supply duct is communicated with the storage chamber through the first air outlet,

the air supply duct is communicated with the return air duct through the second air outlet,

the first air door is arranged at the first air outlet,

the second air door is arranged at the second air outlet.

3. An air-cooled refrigeration appliance according to claim 2,

the air-cooled refrigeration equipment also comprises a first driving device in driving connection with the first air door and a second driving device in driving connection with the second air door,

the first driving device is used for driving the first air door to open and/or close the first air outlet;

the second driving device is used for driving the second air door to open and/or close the second air outlet.

4. An air-cooled refrigeration appliance according to claim 3,

the air-cooled refrigeration appliance also includes a first return retention member and a second return retention member,

the first return holding member is used for holding the first damper in a position for opening or closing the first air outlet;

the second return holding member is for holding the second damper in a position to open or close the second outlet port.

5. The air-cooled refrigerating apparatus according to any one of claims 2 to 4,

the communicating part of the return air duct and the storage chamber is higher than the second air outlet.

6. The air-cooled refrigerating apparatus according to any one of claims 1 to 4,

the return air duct comprises a first return air duct and a second return air duct,

one end of the first air return duct is communicated with the storage chamber, and the other end of the first air return duct is communicated with the refrigerating chamber;

one end of the second return air duct is communicated with the air supply duct, and the other end of the second return air duct is communicated with the refrigerating chamber;

and the second air door is used for blocking the communication between the second return air duct and the air supply duct.

7. The air-cooled refrigerating apparatus according to any one of claims 1 to 4,

the air-cooled refrigeration equipment also comprises a third air door arranged in the return air duct,

the third air door is used for dividing the return air duct into a first duct part and a second duct part,

the first air channel portion communicates with the storage chamber,

the second air duct part is communicated with the refrigerating chamber and the air supply duct.

8. An air-cooled refrigerating apparatus according to claim 3 or 4,

the first drive means and/or the second drive means are motors.

9. The air-cooled refrigerating apparatus according to any one of claims 1 to 4,

the air-cooled refrigeration equipment is an air-cooled refrigerator.

10. The air-cooled refrigerating apparatus according to any one of claims 1 to 4,

the storage room includes at least one of a refrigerating room, a warming room, and a freezing room.