CN216347261U - Air-cooled refrigerator with double evaporators - Google Patents
Air-cooled refrigerator with double evaporators Download PDFInfo
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- CN216347261U CN216347261U CN202120800399.7U CN202120800399U CN216347261U CN 216347261 U CN216347261 U CN 216347261U CN 202120800399 U CN202120800399 U CN 202120800399U CN 216347261 U CN216347261 U CN 216347261U
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Abstract
The utility model discloses an air-cooled refrigerator with double evaporators, and relates to the technical field of refrigeration of refrigerators. Including air-cooled refrigerator body and refrigerating system, the air-cooled refrigerator body includes the walk-in, freezer and temperature-changing room, refrigerating system includes the compressor, cold sprayer, filter and solenoid valve, the freezer is provided with freezing motor fan, freezer evaporimeter and freezing capillary, the temperature-changing room is provided with temperature-changing room motor fan, temperature-changing room evaporimeter and temperature-changing capillary, be provided with cold-stored freezing air supply channel between walk-in and the freezer, be provided with cold-stored temperature-changing air supply channel between walk-in and the temperature-changing room, be provided with cold-stored cold return air way between walk-in and the freezer, be provided with cold-stored temperature-changing return air way between walk-in and the temperature-changing room. The utility model reduces the cost and the failure rate of the electromagnetic valve and the refrigerating system, can realize the simultaneous refrigeration of the refrigerating chamber and the temperature-changing chamber, improves the cooling speed and the refrigerating efficiency, improves the user experience and effectively improves the food fresh-keeping effect.
Description
Technical Field
The utility model belongs to the technical field of refrigeration of refrigerators, and particularly relates to an air-cooled refrigerator with double evaporators.
Background
When the traditional cross split air-cooled refrigerator has a temperature-variable chamber function, the industry usually arranges evaporators and motor fans (a refrigerating motor fan/a temperature-variable motor fan/a freezing motor fan) in a refrigerating chamber, a freezing chamber and the temperature-variable chamber, and the refrigeration system adopts a three-cycle refrigeration system design, wherein the refrigerating evaporator and the temperature-variable evaporator are designed in parallel and then are connected with the freezing evaporator in series to form a finished evaporator system, the refrigerating/temperature-variable/freezing evaporator is provided with corresponding capillary tubes (a refrigerating capillary tube/a temperature-variable capillary tube/a freezing capillary tube) to be connected with the refrigerating evaporator, and the three capillary tubes are used for distributing refrigerants through electromagnetic valves and form a complete refrigeration system with a compressor, a condenser and a filter. The cross split air-cooled refrigerator adopting the design of the three-cycle refrigeration system has the advantages that the design of the refrigeration system is complex, the number of parts is large, the failure rate is high, particularly, because the refrigerant is distributed by the electromagnetic valves, the electromagnetic valves are in a one-in three-out mode, only one of the electromagnetic valves can be selected when the refrigerant is distributed, and the variable temperature evaporator and the refrigeration evaporator can perform refrigeration and cooling on the variable temperature chamber or the refrigeration chamber by alternate refrigeration under the condition of parallel connection, so that the problems and the disadvantages exist:
the method comprises the following steps that 1, when the temperatures of a refrigerating chamber and a variable-temperature chamber are high, for example, the temperature just turns on or turns off for a long time, the refrigerating evaporator and the variable-temperature evaporator alternately refrigerate and cannot refrigerate continuously, so that the refrigerating chamber and the variable-temperature chamber are cooled slowly, the refrigerating efficiency is low, meanwhile, a refrigerating chamber cannot obtain enough refrigerant, and the refrigerating chamber is also cooled slowly, so that the cooling requirement of a user on food preservation is influenced;
and 2, under a higher environmental temperature, generally, when the environmental temperature exceeds 25 ℃, the ambient temperatures of refrigerating capacities required by a refrigerating chamber and a temperature-changing chamber are increased, the corresponding refrigerating time is prolonged, the refrigerating evaporator and the temperature-changing evaporator are alternately refrigerated, in the refrigerating process of the refrigerating evaporator, the temperature of the refrigerating chamber does not reach the required proper refrigerating stop temperature, the temperature of the temperature-changing chamber is raised to the required starting temperature and cannot be timely turned to the temperature-changing evaporator for refrigeration, the temperature of the temperature-changing chamber deviates from the normal temperature, the fluctuation range of the indoor temperature is larger than that of the low environmental temperature, and the food preservation effect is also influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that the refrigerating chamber and the temperature-changing chamber are different and refrigerate simultaneously when the existing cross split air-cooled refrigerator and a three-cycle refrigerating system are designed, and solve the problems that the refrigerating chamber and the temperature-changing chamber are slow in cooling speed and large in temperature fluctuation when the refrigerator is powered on and powered off for a long time or operates in a refrigerating mode at a high ambient temperature.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
the utility model relates to an air-cooled refrigerator with double evaporators, which comprises an air-cooled refrigerator body and a refrigerating system, wherein the air-cooled refrigerator body comprises a refrigerating chamber, a freezing chamber and a temperature-changing chamber, the refrigerating system comprises a compressor, a cold sprayer, a filter and an electromagnetic valve, the freezing chamber is provided with a freezing motor fan, a freezing chamber evaporator and a freezing capillary tube, the temperature-changing chamber is provided with a temperature-changing chamber motor fan, a temperature-changing chamber evaporator and a temperature-changing capillary tube, a refrigerating and freezing air supply channel is arranged between the refrigerating chamber and the freezing chamber, a refrigerating and cold-moving air return channel is arranged between the refrigerating chamber and the freezing chamber, and a refrigerating and temperature-changing air return channel is arranged between the refrigerating chamber and the temperature-changing chamber.
As a preferred technical scheme of the present invention, electric air doors are respectively arranged in the refrigerating, freezing and air supply channel and the refrigerating, temperature-varying air supply channel, the electric air doors are connected with a refrigerator controller, and the electric air doors can be respectively and independently opened and closed.
In a preferred embodiment of the present invention, the compressor has a refrigerant in a pipeline, and the refrigerant flows through the cold shower, the filter, and the solenoid valve in sequence through the pipeline.
In a preferred embodiment of the present invention, the electromagnetic valve is connected to the freezing capillary tube through a pipe.
As a preferable technical solution of the present invention, the other end of the freezing capillary is connected to a freezing chamber evaporator.
As a preferable technical scheme of the utility model, the electromagnetic valve is connected with the variable temperature capillary tube through a pipeline.
As a preferable technical scheme of the utility model, the other end of the variable temperature capillary tube is connected with the variable temperature chamber evaporator, and a refrigerant flows through the variable temperature chamber evaporator and the freezing chamber evaporator through the variable temperature capillary tube during refrigeration.
As a preferable technical solution of the present invention, the variable temperature chamber evaporator and the freezing chamber evaporator are connected in series, the freezing chamber evaporator is located at the rear end of the variable temperature chamber evaporator, a refrigerant of the variable temperature chamber evaporator can return to the compressor through the freezing chamber evaporator, the freezing chamber evaporator can also perform refrigeration independently, and the refrigerant flows through the freezing chamber evaporator through the freezing capillary tube during refrigeration and returns to the compressor.
As a preferable technical scheme of the present invention, the freezing chamber evaporator and the variable temperature chamber evaporator are fin-type evaporators.
The utility model has the following beneficial effects:
the utility model relates to a refrigerating system and a wind circulation design which are newly improved, simplifies the design of the refrigerating system, adopts a mode of connecting a variable temperature evaporator and a freezing evaporator in series and in parallel, distributes refrigerants to two capillary tubes through an electromagnetic valve (one inlet and two outlets), cancels parts such as a refrigerating evaporator, a refrigerating motor fan, the capillary tubes and the like, reduces the cost, reduces the failure rate of the electromagnetic valve and the refrigerating system, particularly can realize the simultaneous refrigeration of a refrigerating chamber and a variable temperature chamber, improves the cooling speed and the refrigerating efficiency, improves the user experience, and effectively improves the food preservation effect.
Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a front view of an air-cooled refrigerator of the present invention;
FIG. 2 is a diagram of a dual cycle refrigeration system of the present invention;
FIG. 3 is an alternative front view of FIG. 1 of the present invention;
FIG. 4 is a front view of a cross-split prior art refrigerator (triple evaporator);
FIG. 5 is a diagram of a prior art three cycle refrigeration system;
in the drawings, the components represented by the respective reference numerals are listed below:
1-refrigerator compartment, 101-refrigerator compartment motor fan, 102-refrigerator compartment evaporator, 103-refrigerator capillary; 2-freezer compartment, 201-freezer motor fan, 202-freezer compartment evaporator, 203-freezer capillary; 3-temperature changing chamber, 301-temperature changing motor fan, 302-temperature changing chamber evaporator and 303-temperature changing capillary; 4-a compressor, 5-a condenser, 6-a filter, 7-an electromagnetic valve, 8-a refrigerating and freezing air return duct, 9-a refrigerating and temperature-changing air return duct, 10-a refrigerating and temperature-changing air supply channel, 11-a refrigerating and freezing air supply channel and 12-a refrigerator door.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the utility model relates to an air-cooled refrigerator with two evaporators, which comprises an air-cooled refrigerator body and a refrigerating system, and is characterized in that: the air-cooled refrigerator body comprises a refrigerating chamber 1, a freezing chamber 2 and a temperature-changing chamber 3, a refrigerating system comprises a compressor 4, a cold sprayer 5, a filter 6 and an electromagnetic valve 7, the freezing chamber 2 is provided with a freezing motor fan 201, a freezing chamber evaporator 202 and a freezing capillary tube 203, the temperature-changing chamber 3 is provided with a temperature-changing chamber motor fan 301, a temperature-changing chamber evaporator 302 and a temperature-changing capillary tube 303, a refrigerating and freezing air supply channel 11 is arranged between the refrigerating chamber 1 and the freezing chamber 2, a refrigerating and temperature-changing air supply channel 10 is arranged between the refrigerating chamber 1 and the temperature-changing chamber 3, a refrigerating and freezing air return channel 8 is arranged between the refrigerating chamber 1 and the freezing chamber 2, and a refrigerating and temperature-changing air return channel 9 is arranged between the refrigerating chamber 1 and the temperature-changing chamber 3.
Electric air doors are respectively arranged in the refrigerating, freezing and air supply channel 11 and the refrigerating and temperature-changing air supply channel 10 and are connected with a refrigerator controller, and the electric air doors can be respectively and independently opened and closed.
Refrigerant is filled in the pipeline of the compressor 4, and the refrigerant flows through the refrigerating shower 5, the filter 6 and the electromagnetic valve 7 in sequence through the pipeline.
The electromagnetic valve 7 is connected with the freezing capillary 203 through a pipeline.
The other end of the freezing capillary 203 is connected to the freezing chamber evaporator 202.
The electromagnetic valve 7 is connected with the temperature-changing capillary tube 303 through a pipeline.
One end of the temperature-changing capillary tube 303 is connected to the temperature-changing chamber evaporator 302, and during refrigeration, the refrigerant flows through the temperature-changing chamber evaporator 302 and the freezing chamber evaporator 202 via the temperature-changing capillary tube 303.
The variable-temperature chamber evaporator 302 and the freezing chamber evaporator 202 are connected in series, the freezing chamber evaporator 202 is arranged at the rear end of the variable-temperature chamber evaporator 302, refrigerant of the variable-temperature chamber evaporator 302 can return to the compressor through the freezing chamber evaporator 202, the freezing chamber evaporator 202 can also carry out refrigeration independently, and the refrigerant flows through the freezing chamber evaporator 202 through the freezing capillary tube 203 during refrigeration and returns to the compressor 4.
The freezing chamber evaporator 202 and the variable temperature chamber evaporator 302 are fin evaporators.
One specific application of this embodiment is:
as shown in fig. 1: a double-evaporator air-cooled refrigerator is a cross split refrigerator, the upper part of the double-evaporator air-cooled refrigerator is a refrigerating chamber 1, the lower part of the double-evaporator air-cooled refrigerator is a temperature changing chamber 3 and a freezing chamber 2, and the positions of the freezing chamber 2 and the temperature changing chamber 3 can be interchanged according to the design requirement;
a temperature-changing chamber evaporator 302 and a temperature-changing motor fan 301 are installed in a temperature-changing chamber 3 and used for refrigerating the temperature-changing chamber 3, a refrigerating chamber 1 and the temperature-changing chamber 3 are connected through a refrigerating variable temperature air supply channel 10, a refrigerating variable temperature electric air door is installed in an air channel leading to the refrigerating chamber, a refrigerating variable temperature air return channel 9 is installed between the refrigerating chamber 1 and the temperature-changing chamber 3, when the refrigerating chamber 1 needs refrigerating, the temperature-changing chamber evaporator 302 refrigerates, the refrigerating variable temperature electric air door is opened, the motor fan conveys cold air to the refrigerating chamber 1, and the cold air returns to the temperature-changing evaporator 302 through the refrigerating variable temperature air return channel 9 after sufficient heat exchange.
The refrigerating chamber evaporator 202 and the freezing motor fan 201 are installed in the freezing chamber 2 and used for refrigerating the freezing chamber 2, the refrigerating chamber 1 and the freezing chamber 2 are connected through a refrigerating cold air supply air channel, the refrigerating and freezing electric air door is installed in the air channel leading to the refrigerating chamber 1, the refrigerating variable-temperature return air channel 9 is installed between the refrigerating chamber 1 and the variable-temperature chamber 3 at the same time, when the refrigerating chamber 1 has a refrigerating requirement, the freezing chamber evaporator 202 is refrigerated, the refrigerating and freezing electric air door is opened, the motor fan conveys cold air to the refrigerating chamber 1, and after sufficient heat exchange, the cold air returns to the refrigerating chamber evaporator 202 through the refrigerating and freezing return air channel 11.
In a common cross-split air-cooled refrigerator, the temperature ranges of all chambers of the cross-split air-cooled refrigerator include, but are not limited to, the temperature ranges of a refrigerating chamber 1, 0-10 ℃, a temperature-changing chamber 3, 5-20 ℃ and a freezing chamber 2, 2-16-24 ℃.
For example 1, when the refrigerator is just powered on for use, the temperature needs to be rapidly reduced, a refrigerant flows through the temperature-changing chamber evaporator 302 and the freezing chamber evaporator 202 through the temperature-changing capillary tube, at this time, the refrigerating and freezing electric air door and the refrigerating temperature-changing electric air door are opened, the temperature-changing motor fan 301 and the freezing motor fan 302 operate, cold air passes through cold air channels between the refrigerating chamber 1 and the temperature-changing chamber 3, and between the refrigerating chamber 1 and the freezing chamber 2, and the three chambers of the refrigerating chamber 1, the temperature-changing chamber 3 and the freezing chamber 2 are rapidly cooled simultaneously.
For example 2, after the refrigerator operates for a period of time in a refrigerating mode, the heat load of the refrigerator is reduced, the refrigerating levels of the compartments of the refrigerator are set in a refrigerator controller, the refrigerating compartment 1 is higher than the temperature-variable compartment 3 in level, the temperature-variable compartment 3 is higher than the freezing compartment 2, namely, when the refrigerating compartment 1 requires refrigeration, no matter whether the temperature-variable compartment 3 or the freezing compartment 2 has a refrigeration demand, the refrigerating compartment 1 needs to be refrigerated and supplied with air according to the state of the temperature-variable compartment 3 or the state of the freezing compartment 2; at this time and in the normal refrigeration stage thereafter, refrigeration control may be performed according to the following table 1:
TABLE 1 refrigeration state control table
Wherein the letter X and the letter Y represent:
x: indicating "no set temperature reached, with refrigeration requirement"
Y represents that the set temperature is reached and no refrigeration is needed.
As an alternative to the present invention:
as an improvement of the utility model, see fig. 3, a refrigeration variable temperature electric air door and a refrigeration variable temperature return air duct 9 can be eliminated; the refrigeration system still adopts the double-circulation refrigeration system shown in fig. 2, and is different from the utility model in that when the refrigerating chamber 1 needs to refrigerate, the refrigerating chamber evaporator 202 refrigerates, the electric air door for refrigerating and freezing is opened, the cold air channel of the refrigerating chamber to the refrigerating chamber 1 is communicated, the electric fan conveys the cold air to the refrigerating chamber, and the cold air returns to the refrigerating chamber evaporator 202 through the refrigerating and freezing air return channel 8 after sufficient heat exchange.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims (9)
1. The utility model provides an air-cooled refrigerator of double evaporator, includes air-cooled refrigerator body and refrigerating system, its characterized in that: the air-cooled refrigerator body comprises a refrigerating chamber (1), a freezing chamber (2) and a temperature-changing chamber (3), the refrigerating system comprises a compressor (4), a cold sprayer (5), a filter (6) and an electromagnetic valve (7), the freezing chamber (2) is provided with a freezing motor fan (201), a freezing chamber evaporator (202) and a freezing capillary tube (203), the temperature-changing chamber (3) is provided with a temperature-changing chamber motor fan (301), a temperature-changing chamber evaporator (302) and a temperature-changing capillary tube (303), a refrigerating and freezing air supply channel (11) is arranged between the refrigerating chamber (1) and the freezing chamber (2), a refrigerating temperature-changing air supply channel (10) is arranged between the refrigerating chamber (1) and the temperature-changing chamber (3), a refrigerating and freezing return air duct (8) is arranged between the refrigerating chamber (1) and the freezing chamber (2), and a refrigerating temperature-changing air return duct (9) is arranged between the refrigerating chamber (1) and the temperature-changing chamber (3).
2. The air-cooled refrigerator with double evaporators according to claim 1, wherein electric air doors are respectively arranged in the refrigerating/freezing air supply channel (11) and the refrigerating/temperature-changing air supply channel (10), the electric air doors are connected with a refrigerator controller, and the electric air doors can be respectively and independently opened and closed.
3. The air-cooled refrigerator with double evaporators according to claim 1, characterized in that refrigerant is in the pipeline of the compressor (4), and the refrigerant flows through the refrigerating shower (5), the filter (6) and the electromagnetic valve (7) in sequence through the pipeline.
4. The air-cooled refrigerator of a double evaporator as claimed in claim 1, wherein the solenoid valve (7) is connected to the freezing capillary tube (203) through a pipe.
5. The dual evaporator air-cooled refrigerator of claim 1, wherein the other end of the freezing capillary tube (203) is connected to the freezing chamber evaporator (202).
6. The air-cooled refrigerator with double evaporators according to claim 1, wherein the solenoid valve (7) is connected to the temperature changing capillary tube (303) through a pipe.
7. The air-cooled refrigerator with double evaporators according to claim 1, wherein one end of the temperature changing capillary tube (303) is connected with the temperature changing chamber evaporator (302), and during refrigeration, refrigerant flows through the temperature changing chamber evaporator (302) and the freezing chamber evaporator (202) through the temperature changing capillary tube (303).
8. The double-evaporator air-cooled refrigerator as claimed in claim 1, wherein the variable temperature chamber evaporator (302) and the freezing chamber evaporator (202) are connected in series, the freezing chamber evaporator (202) is arranged at the rear end of the variable temperature chamber evaporator (302), the refrigerant of the variable temperature chamber evaporator (302) can return to the compressor through the freezing chamber evaporator (202), the freezing chamber evaporator (202) can also cool alone, and the refrigerant flows through the freezing chamber evaporator (202) to return to the compressor (4) through the freezing capillary tube (203) during cooling.
9. The dual evaporator air-cooled refrigerator of claim 8, wherein the freezer evaporator (202) and the variable temperature chamber evaporator (302) are fin evaporators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120800399.7U CN216347261U (en) | 2021-04-19 | 2021-04-19 | Air-cooled refrigerator with double evaporators |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120800399.7U CN216347261U (en) | 2021-04-19 | 2021-04-19 | Air-cooled refrigerator with double evaporators |
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| Publication Number | Publication Date |
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| CN216347261U true CN216347261U (en) | 2022-04-19 |
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| CN202120800399.7U Active CN216347261U (en) | 2021-04-19 | 2021-04-19 | Air-cooled refrigerator with double evaporators |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023221766A1 (en) * | 2022-05-19 | 2023-11-23 | 宁波韩电电器有限公司 | Refrigerating system of refrigerator |
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2021
- 2021-04-19 CN CN202120800399.7U patent/CN216347261U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023221766A1 (en) * | 2022-05-19 | 2023-11-23 | 宁波韩电电器有限公司 | Refrigerating system of refrigerator |
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