Vertical refrigerator and control method thereof
阅读说明:本技术 立式冷柜及其控制方法 (Vertical refrigerator and control method thereof ) 是由 任代青 于 2020-06-23 设计创作,主要内容包括:本发明涉及一种立式冷柜及其控制方法;其中立式冷柜包括箱体、第一制冷系统、风道总成及第二制冷系统,箱体内设有第一制冷间室、第二制冷间室及蒸发仓;第一制冷系统用于冷却蒸发仓内空气;风道总成的风道用于使蒸发仓分别与第一制冷间室、第二制冷间室相连通;风道总成的风门用于启闭蒸发仓与第二制冷间室之间的连通关系;第二制冷系统用于为第二制冷间室单独提供冷量。本发明利用第一制冷系统配合风门控制,选择性地对第二制冷间室进行风冷制冷;同时第二制冷系统对第二制冷间室单独直冷制冷;使第二制冷间室同时具有风冷和直冷两种制冷模式,通过风冷和直冷的选择性配合,使第二制冷间室内实现多种不同温区的使用模式。(The invention relates to a vertical refrigerator and a control method thereof; the vertical refrigerator comprises a box body, a first refrigerating system, an air duct assembly and a second refrigerating system, wherein a first refrigerating chamber, a second refrigerating chamber and an evaporation bin are arranged in the box body; the first refrigerating system is used for cooling air in the evaporation bin; the air duct of the air duct assembly is used for enabling the evaporation bin to be communicated with the first refrigerating chamber and the second refrigerating chamber respectively; the air door of the air duct assembly is used for opening and closing the communication relation between the evaporation bin and the second refrigerating chamber; the second refrigeration system is used for independently providing refrigeration for the second refrigeration compartment. The first refrigerating system is matched with the air door for control, and the air cooling refrigeration is selectively carried out on the second refrigerating chamber; meanwhile, the second refrigerating system independently performs direct cooling refrigeration on the second refrigerating chamber; the second refrigerating chamber has two refrigerating modes of air cooling and direct cooling at the same time, and the use modes of various different temperature areas in the second refrigerating chamber are realized through the selective cooperation of the air cooling and the direct cooling.)
1. A vertical freezer, comprising:
the refrigerator comprises a box body, a first refrigerating chamber, a second refrigerating chamber and an evaporation bin, wherein the box body is internally provided with the first refrigerating chamber, the second refrigerating chamber and the evaporation bin which are separated;
the first refrigeration system comprises a first compressor and an indirect cooling evaporator, wherein the first compressor is connected with the indirect cooling evaporator to form a first refrigeration loop; the first compressor is arranged in the box body; the indirect cooling evaporator is arranged in the evaporation bin and is used for cooling air in the evaporation bin;
the air duct assembly comprises an air duct and an air door; the air duct is provided with an air inlet communicated with the evaporation bin, a first air supply outlet communicated with the first refrigeration chamber and a second air supply outlet communicated with the second refrigeration chamber; the air door is movably arranged corresponding to the second air supply outlet and is used for opening and closing the second air supply outlet; and
the second refrigeration system comprises a second compressor and a direct-cooling evaporator, and the second compressor is connected with the direct-cooling evaporator to form a second refrigeration loop; the second refrigeration circuit is independent of the first refrigeration circuit; the second compressor is arranged in the box body; the direct cooling evaporator is attached to the outer wall of the second refrigerating chamber and used for independently providing cold for the second refrigerating chamber.
2. The upright cooler of claim 1 wherein the second cooling compartment is located above the first cooling compartment;
a first accommodating cavity is formed in the bottom of the box body and below the first refrigerating chamber, and the first compressor is arranged in the first accommodating cavity;
and a second accommodating cavity is formed in the top of the box body above the second refrigerating chamber, and the second compressor is arranged in the second accommodating cavity.
3. The vertical cooler of claim 2, wherein the first refrigeration system further comprises a first condenser and a heat rejection fan; the first condenser and the heat dissipation fan are both arranged in the first accommodating cavity, the heat dissipation fan is arranged between the first condenser and the first compressor, the air suction side of the heat dissipation fan faces the first condenser, and the air outlet side of the heat dissipation fan faces the first compressor;
the second refrigeration system further comprises a second condenser, and the second condenser is laid in the side wall of the box body.
4. The vertical refrigerator of claim 3, wherein the bottom surface of the first accommodating chamber is provided with a first supporting plate and a second supporting plate which are arranged at intervals, the first compressor is arranged on the first supporting plate, and the cooling fan is arranged on the second supporting plate.
5. The vertical refrigerator of claim 1 wherein said evaporation compartment is disposed on a back side of said first compartment;
the first refrigerating chamber is provided with an air return inlet or a first air return pipe communicated with the evaporation bin;
and a second air return pipe communicated with the evaporation bin is arranged in the second refrigeration compartment.
6. The vertical refrigerator of claim 1 wherein the direct cooling evaporator is a cooling tube attached to and coiled around the outer wall of the second cooling compartment; the indirect cooling evaporator is a fin evaporator.
7. A control method of the vertical refrigerator as claimed in any one of claims 1 to 6, comprising:
acquiring a request for deep refrigeration of the second refrigeration compartment;
controlling the first compressor to be in an open state and controlling the air door to be in an open state;
starting the second compressor;
closing the damper when the temperature in the second refrigerating compartment is less than a preset temperature threshold; and keeping the opening state of the second compressor until the temperature in the second refrigerating chamber reaches the deep refrigerating temperature.
8. The method of controlling the vertical refrigerator according to claim 7, wherein the on duration of the first compressor is further detected before the second compressor is started, and the second compressor is started after the on duration of the first compressor reaches a preset time threshold.
9. The control method of the vertical refrigerator of claim 7, wherein the refrigeration control method further comprises:
and after the air door is closed, detecting the real-time temperature of the first refrigerating chamber, and controlling the operation of the first compressor according to the difference value between the real-time temperature and the preset temperature of the first refrigerating chamber.
10. The method of controlling an upright cooler of claim 7, further comprising:
when a request for refrigerating or freezing refrigeration of the second refrigerating chamber is obtained, the first compressor is controlled to be in an open state and the air door is controlled to be in an open state; maintaining the second compressor in an off state; keeping the opening state of the air door until the temperature in the second refrigerating chamber reaches the refrigerating temperature or the freezing temperature;
when a request for temperature-changing refrigeration of the second refrigeration compartment is obtained, the air door is controlled to be in a closed state; starting the second compressor; and keeping the starting state of the second compressor until the temperature in the second refrigerating chamber reaches the temperature-changing refrigerating temperature.
Technical Field
The invention relates to the technical field of refrigeration equipment, in particular to a vertical refrigerator and a control method thereof.
Background
The vertical refrigerator is applied to the life of users, can store articles at low temperature as a common storage device, has a simple appearance and large refrigerating capacity, and is widely applied to places such as shops, supermarkets and the like.
In the related art, the vertical refrigerator is usually a single-press structure, which mainly adopts pure freezing, and cannot meet the requirements of some differentiated users, for example, the temperature range required by the users is wide, and common frozen foods (such as pork and mutton for low-temperature preservation at-18 ℃) and deep-frozen foods (such as deep-sea fish and shrimps for low-temperature preservation below-40 ℃) need to be stored at the same time. The single press controls two different temperature areas to refrigerate, generally has the defect of insufficient refrigerating capacity, and in order to achieve the refrigeration of the different freezing temperature areas, the compressor is frequently started, the cold quantity distribution is unreasonable, the cooling speed is slow, and the energy consumption is large.
Disclosure of Invention
The invention aims to provide a vertical refrigerator, which is used for optimizing a refrigerating structure of the vertical refrigerator in the prior art and can meet refrigerating requirements of different low-temperature areas at the same time.
The invention also aims to provide a control method of the vertical refrigerator, so that the required deep cooling temperature can be reached at the highest speed and the cooling time can be shortened when deep refrigeration is required.
In order to solve the technical problems, the invention adopts the following technical scheme:
according to one aspect of the invention, the invention provides a vertical freezer comprising: the refrigerator comprises a box body, a first refrigerating chamber, a second refrigerating chamber and an evaporation bin, wherein the box body is internally provided with the first refrigerating chamber, the second refrigerating chamber and the evaporation bin which are separated; the first refrigeration system comprises a first compressor and an indirect cooling evaporator, wherein the first compressor is connected with the indirect cooling evaporator to form a first refrigeration loop; the first compressor is arranged in the box body; the indirect cooling evaporator is arranged in the evaporation bin and is used for cooling air in the evaporation bin; the air duct assembly comprises an air duct and an air door; the air duct is provided with an air inlet communicated with the evaporation bin, a first air supply outlet communicated with the first refrigeration chamber and a second air supply outlet communicated with the second refrigeration chamber; the air door is movably arranged corresponding to the second air supply outlet and is used for opening and closing the second air supply outlet; the second refrigeration system comprises a second compressor and a direct-cooling evaporator, and the second compressor is connected with the direct-cooling evaporator to form a second refrigeration loop; the second refrigeration circuit is independent of the first refrigeration circuit; the second compressor is arranged in the box body; the direct cooling evaporator is attached to the outer wall of the second refrigerating chamber and used for independently providing cold for the second refrigerating chamber.
In some embodiments of the present application, the second refrigeration compartment is located above the first refrigeration compartment; a first accommodating cavity is formed in the bottom of the box body and below the first refrigerating chamber, and the first compressor is arranged in the first accommodating cavity; and a second accommodating cavity is formed in the top of the box body above the second refrigerating chamber, and the second compressor is arranged in the second accommodating cavity.
In some embodiments of the present application, the first refrigeration system further comprises a first condenser and a heat rejection fan; the first condenser and the heat dissipation fan are both arranged in the first accommodating cavity, the heat dissipation fan is arranged between the first condenser and the first compressor, the air suction side of the heat dissipation fan faces the first condenser, and the air outlet side of the heat dissipation fan faces the first compressor; the second refrigeration system further comprises a second condenser, and the second condenser is laid in the side wall of the box body.
Some embodiments of this application, be equipped with first backup pad and the second backup pad that the interval set up on the bottom surface of first holding chamber, first compressor sets up on the first backup pad, cooling fan sets up in the second backup pad.
In some embodiments of the present application, the evaporation bin is disposed on a back side of the first refrigeration compartment; the first refrigerating chamber is provided with an air return opening or a first air return pipe communicated with the evaporation bin, so that air in the first refrigerating chamber returns to the evaporation bin through the air return opening or the first air return pipe; and the second refrigerating chamber is provided with a second air return pipe communicated with the evaporation bin, so that air in the second refrigerating chamber returns to the evaporation bin through the second air return pipe.
In some embodiments of the present application, the direct cooling evaporator is a cooling pipe attached to and wound on an outer wall of the second cooling chamber; the indirect cooling evaporator is a fin evaporator.
According to another aspect of the present invention, the present invention further provides a control method for a vertical refrigerator, which includes: acquiring a request for deep refrigeration of the second refrigeration compartment; controlling the first compressor to be in an open state and controlling the air door to be in an open state; starting the second compressor; closing the damper when the temperature in the second refrigerating compartment is less than a preset temperature threshold; and keeping the opening state of the second compressor until the temperature in the second refrigerating chamber reaches the deep refrigerating temperature.
In some embodiments of the present application, before starting the second compressor, an on-duration of the first compressor is further detected, and after the on-duration of the first compressor reaches a preset time threshold, the second compressor is started.
In some embodiments of the present application, the control method further includes: and after the air door is closed, detecting the real-time temperature of the first refrigerating chamber, and controlling the operation of the first compressor according to the difference value between the real-time temperature and the preset temperature of the first refrigerating chamber.
In some embodiments of the present application, the control method further includes: when a request for refrigerating or freezing refrigeration of the second refrigerating chamber is obtained, the first compressor is controlled to be in an open state and the air door is controlled to be in an open state; maintaining the second compressor in an off state; keeping the opening state of the air door until the temperature in the second refrigerating chamber reaches the refrigerating temperature or the freezing temperature; when a request for temperature-changing refrigeration of the second refrigeration compartment is obtained, the air door is controlled to be in a closed state; starting the second compressor; and keeping the starting state of the second compressor until the temperature in the second refrigerating chamber reaches the temperature-changing refrigerating temperature.
According to the technical scheme, the embodiment of the invention at least has the following advantages and positive effects:
in the vertical refrigerator provided by the embodiment of the invention, two mutually independent refrigerating systems are arranged in a box body, and a first refrigerating loop is formed by utilizing a first compressor and an indirect cooling evaporator in a first refrigerating system and is used for cooling air in an evaporation bin; the air ducts are used for respectively providing cold air for the first refrigerating chamber and the second refrigerating chamber, and the air ducts are matched with the opening and closing control of the air door to selectively carry out air cooling refrigeration on the second refrigerating chamber; meanwhile, a second compressor and a direct-cooling evaporator in a second refrigeration system are matched to form a second refrigeration loop which is used for independently performing direct-cooling refrigeration on a second refrigeration chamber; therefore, the second refrigerating chamber has two refrigerating modes of air cooling and direct cooling at the same time, and the use modes of various different temperature areas can be realized in the second refrigerating chamber through the selective cooperation of the air cooling and the direct cooling.
According to the control method of the vertical refrigerator, the first refrigeration system and the second refrigeration system are matched for operation, the first refrigeration system is used for carrying out air cooling refrigeration on the second refrigeration chamber, the second refrigeration system is used for carrying out direct cooling refrigeration on the second refrigeration chamber, and the first refrigeration system and the second refrigeration system are matched with each other, so that the cooling speed of the second refrigeration chamber can be maximized, the required deep cooling temperature can be reached at the highest speed when deep refrigeration is required, the cooling time is shortened, and the cooling speed is improved.
Drawings
Fig. 1 is a schematic perspective view of an upright freezer according to an embodiment of the invention.
Fig. 2 is a schematic view of a refrigeration system within the upright cooler of fig. 1.
Fig. 3 is a schematic diagram of the first refrigeration circuit of fig. 2.
Fig. 4 is a schematic diagram of the second refrigeration circuit of fig. 2.
Fig. 5 is a schematic structural view of the first accommodating chamber and the second accommodating chamber in the box body in fig. 1.
Fig. 6 is a schematic view of the structure of the second refrigerating compartment in fig. 2.
The reference numerals are explained below:
1. a box body;
11. a first refrigeration compartment; 111. a first air return pipe; 112. a first air supply outlet; 12. a second refrigeration compartment; 121. a second return air duct; 122. a second air supply outlet; 13. an evaporation bin; 14. a door body; 15. a first accommodating cavity; 151. a first support plate; 152. a second support plate; 16. a second accommodating cavity;
20. a first refrigeration circuit;
21. a first compressor; 22. a first condenser; 23. a first dry filter; 24. a first throttling device; 25. an indirect cooling evaporator; 26. a heat radiation fan;
31. an air duct housing; 311. a pipeline; 32. a damper;
40. a second refrigeration circuit;
41. a second compressor; 42. a second condenser; 43. a second dry filter; 44. a second throttling device; 45. a direct cooling evaporator.
Detailed Description
Exemplary embodiments that embody features and advantages of the invention are described in detail below in the specification. It is to be understood that the invention is capable of other embodiments and that various changes in form and details may be made therein without departing from the scope of the invention and the description and drawings are to be regarded as illustrative in nature and not as restrictive.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The vertical refrigerator is applied to the life of users, can store articles at low temperature as a common storage device, has a simple appearance and large refrigerating capacity, and is widely applied to places such as shops, supermarkets and the like.
In the related art, the vertical refrigerator is usually a single-press structure, which mainly adopts pure freezing, and cannot meet the requirements of some differentiated users, for example, the temperature range required by the users is wide, and common frozen foods (such as pork and mutton for low-temperature preservation at-18 ℃) and deep-frozen foods (such as deep-sea fish and shrimps for low-temperature preservation below-40 ℃) need to be stored at the same time. The single press controls two different temperature areas to refrigerate, generally has the defects of low cooling speed and insufficient refrigerating capacity, and the compressor is frequently started to refrigerate in the different freezing temperature areas, the cold quantity distribution is unreasonable, the cooling speed is low, and the energy consumption is high.
Fig. 1 is a schematic perspective view of an upright freezer according to an embodiment of the invention. Fig. 2 is a schematic view of a refrigeration system within the upright cooler of fig. 1. Fig. 3 is a schematic diagram of the
Referring to fig. 1 to 3, the vertical refrigerator provided in the embodiment of the present invention includes a box body 1, a first refrigeration system, an air duct assembly, and a second refrigeration system.
The box body 1 can be in a cuboid structure, and a
The refrigerator body 1 is provided with a plurality of
Referring to fig. 2, the
The first
The
The
In some embodiments, the
The
Fig. 5 is a schematic structural view of the first receiving
Referring to fig. 5, a first
Referring to fig. 2, 3 and 5, the first refrigerating system is disposed in the cabinet 1 to correspond to the
The first refrigeration system includes a
Wherein,
The
In some embodiments, the first refrigeration system further includes a
In some embodiments, the first supporting
In the first refrigeration system, an outlet of the
In the refrigeration process of the
During the circuit refrigeration cycle, the heat in the
Referring to fig. 2, the air duct assembly is disposed in the box body 1 and is used for communicating the
The air duct has an air inlet communicated with the
Cold air in the
It should be noted that the air duct assembly may include an
In some embodiments, as shown in fig. 2, the
The fan is arranged in the air duct and used for providing power for the flow of air in the air duct to form a stable airflow direction. The fan may be a centrifugal fan, for example, disposed in the
The
Referring to fig. 2, 4 and 5, the second refrigeration system is disposed in the cabinet 1, and is disposed corresponding to the
The second refrigeration system includes a
Fig. 6 is a schematic view of the structure of the second
Referring to fig. 6, the
In some embodiments, the
Referring to fig. 2 and 5, the
In the refrigeration process of the second refrigeration loop 40, after being compressed by the
In the process of the loop refrigeration cycle, the heat of the inner wall of the
Referring to fig. 2, the first refrigeration system and the second refrigeration system are independent from each other, so that the first refrigeration system and the second refrigeration system can be selectively controlled to operate independently or cooperate with each other for refrigeration, so that the
When the first refrigerating system is independently started to operate, the first refrigerating
When the second refrigeration system is independently started to operate, the
Therefore, the
In the mode of temperature-changing and deep-cooling refrigeration of the
Referring to fig. 2, based on the layout of the vertical refrigerator structure and the dual refrigeration system, the embodiment of the invention further provides a control method of the vertical refrigerator, which is mainly applied to the vertical refrigerator, wherein the
The control method comprises the following steps in a deep cooling mode:
step S10, when a request for deep cooling of the
Step S20, after the opening request is obtained, the
Step S30, when the temperature in the
The purpose of closing the
Step S40, detecting the real-time temperature of the
If the real-time temperature is less than the preset temperature, the operation state of the
If the real-time temperature is greater than the preset temperature, the
If the preset temperature is not available, it indicates that there is no refrigeration demand in the
In some embodiments, the first refrigeration system and the second refrigeration system need to be turned on in time-staggered manner, so as to avoid the resonance phenomenon when the
The control method comprises the following steps in a refrigeration mode or a freezing mode:
when a request for refrigerating or freezing the
The control method comprises the following steps in a temperature-changing mode:
when a request for temperature-changing refrigeration of the
According to the technical scheme, the embodiment of the invention at least has the following advantages and positive effects:
in the vertical refrigerator of the embodiment of the invention, two mutually independent refrigerating systems are arranged in a box body 1, and a
In the control method of the vertical refrigerator provided by the embodiment of the invention, the first refrigeration system and the second refrigeration system are matched for operation, the first refrigeration system is used for carrying out air cooling refrigeration on the
While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
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