CN119022547A

CN119022547A - Double evaporator refrigerator

Info

Publication number: CN119022547A
Application number: CN202411168970.2A
Authority: CN
Inventors: 薛磊; 李琦; 徐文山; 蔡梦婕
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2024-08-23
Filing date: 2024-08-23
Publication date: 2024-11-26

Abstract

The present invention discloses a double-evaporator refrigerator, comprising a refrigerating chamber and a freezing chamber, wherein the freezing chamber adopts a double-door structure and is provided with a freezing partition, and further comprises a first evaporator and an air supply assembly installed between the refrigerating chamber and the freezing chamber, wherein the air supply assembly is connected to the freezing partition in the freezing chamber, wherein an air duct, an air outlet and an air return port are provided on the freezing partition, wherein an electric damper is built in the air outlet or the air return port, forming an air path circulation for the first evaporator to supply cold to the freezing chamber. The present invention not only increases the space of the refrigerating chamber, but also can provide cold capacity to the ice-making chamber of the freezing chamber through the evaporator of the refrigerating chamber, thereby achieving the effect of rapid ice making.

Description

Double-evaporator refrigerator

Technical Field

The invention relates to the technical field of refrigeration, in particular to a double-evaporator refrigerator.

Background

At present, the double-system double-evaporator air-cooled refrigerator on the market is characterized in that the refrigerating chamber evaporator is arranged in an evaporator bin at the rear part of the refrigerating chamber liner, and the refrigerating air duct is assembled outside the evaporator bin, so that a large part of refrigerating chamber space is occupied. The space occupied by the refrigeration compartment evaporator compartment and the refrigeration air duct assembly results in reduced utilization of the refrigeration compartment space. Obviously, the same box size, the maximum space utilization rate is beneficial to the market competitiveness of the product.

In addition, the ice making chamber of the existing double-evaporator refrigerator is cooled by the freezing chamber evaporator, and the ice making speed is low and the ice taking is difficult.

Disclosure of Invention

The invention provides a double-evaporator refrigerator, which aims to solve the technical problems that in the prior art, the space utilization rate of a refrigerating chamber is low, the ice making speed of an ice making chamber is low, and ice taking is difficult.

The invention adopts the technical scheme that the double-evaporator refrigerator comprises a refrigerating chamber, a freezing partition plate positioned in the middle of the freezing chamber, a first evaporator and an air supply assembly which are arranged between the refrigerating chamber and the freezing chamber, wherein the air supply assembly is communicated with the freezing partition plate in the freezing chamber, an air channel, an air outlet and an air return opening are arranged on the freezing partition plate, and an electric air door is arranged in the air outlet and the air return opening to form an air path circulation for cooling the freezing chamber by the first evaporator.

In an embodiment, the freezing chamber is provided with an ice making chamber, the ice making chamber is positioned below the first evaporator, an automatic ice making and taking device is arranged in the ice making chamber, an air outlet and an air return opening which are communicated with the ice making chamber are arranged on the freezing partition plate, and an electric air door is arranged in the air outlet and the air return opening.

In another embodiment, the freezing chamber is further provided with a quick freezing chamber, the quick freezing chamber is located below the first evaporator and adjacent to the ice making chamber, the freezing partition plate is provided with an air outlet and an air return opening which are communicated with the quick freezing chamber, and electric air doors are arranged in the air outlet and the air return opening.

Further, the first evaporator is communicated with the refrigerating chamber through a refrigerating air supply air door, a refrigerating air return air opening and an air channel.

Preferably, a heater is provided below the first evaporator.

Preferably, a water receiving tray is arranged below the heating pipe.

The double-evaporator refrigerator provided by the invention further comprises a second evaporator arranged on the outer side of the inner container at the rear part of the freezing chamber and used for refrigerating the freezing chamber, the first evaporator is communicated with the second evaporator through a pipeline and an electric valve, and when the refrigerating chamber has a refrigerating requirement, the electric valve is opened to enable the first evaporator to refrigerate; when the refrigerating chamber has no refrigeration requirement, the electric valve is closed, and the first evaporator does not refrigerate.

When a user gives an ice making or quick cooling instruction to the refrigerator, an electric air door between the first evaporator and the freezing partition board is opened, cold air enters an ice making chamber or a quick freezing chamber from an air outlet on the freezing partition board, and then returns to the first evaporator chamber through an air return port on the freezing partition board; and when the quick cooling or ice making process is finished, closing the electric air door on the freezing partition plate, and finishing the air supply circulation of the first evaporator to the ice making chamber or the quick freezing chamber.

Preferably, before the air supply cycle of the first evaporator to the ice making chamber is ended, the heater is turned on to heat the first evaporator and send the air with the increased temperature into the ice making chamber, so that ice cubes are easy to separate, or the temperature of the ice making chamber is prevented from being excessively low to affect the temperature of the whole freezing chamber.

Preferably, the first evaporator and the second evaporator are both fin-tube evaporators.

Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:

1. The evaporator and the air supply component for the refrigerator refrigerating chamber are arranged in the cavity between the freezing chamber and the refrigerating chamber of the refrigerator, so that the evaporator cavity at the rear part of the refrigerator refrigerating chamber is eliminated, and the space utilization rate of the refrigerator refrigerating chamber is effectively improved.

2. The air supply mode of the freezing chamber is diversified, the second evaporator can be used for cooling, the first evaporator can be used as an air duct medium through the existing freezing partition plate to cool the freezing chamber, the two evaporators jointly act to achieve the effect of stacked rapid refrigeration, and meanwhile, the layered accurate temperature control of the freezing chamber can be realized.

3. The heater is arranged below the first evaporator, the first evaporator is heated by the heater after ice making in the ice making chamber is finished, hot air is introduced into the ice making chamber, the problems that ice cubes in the automatic ice making chamber are easy to adhere to a container and ice taking is difficult are solved, and meanwhile, the problem that the temperature of the ice making chamber is too low and the overall temperature fluctuation of the freezing chamber is too large is avoided.

Drawings

The invention will be described in detail below with reference to the attached drawing figures and specific examples, wherein:

Fig. 1 is a side view of a first embodiment of a dual evaporator refrigerator of the present invention;

fig. 2 is a side view of a second embodiment of the dual evaporator refrigerator of the present invention;

FIG. 3 is a top view of a freezer compartment of a refrigerator;

FIG. 4 is a partial schematic view of the freezing compartment partition in a freezer compartment setting position;

FIG. 5 is a schematic view of a refrigerated bulkhead supplying air to an ice-making compartment;

fig. 6 is a front view of a freezing chamber of a refrigerator.

Wherein:

The refrigerating machine comprises a refrigerating chamber 1, a freezing chamber 2, a refrigerating air channel 3, a first evaporator 4, a second evaporator 5, a circulating fan 6, a refrigerating air supply air door 7, a refrigerating air return door 8, a vertical beam 9, a freezing partition plate 10, a refrigerating air supply air door 11, a refrigerating air return door 12, an air outlet of a freezing partition plate 13, an air return of a freezing partition plate 14, a heater 15, a water receiving disc 16 and an ice making chamber 17.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and examples. It should be understood that the following specific examples are given by way of illustration only and are not intended to be limiting.

The terminology used in the description presented herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art are not discussed in detail in this specification, but are intended to be considered as part of this specification where appropriate. Any particular values in the specification are to be construed as merely illustrative and not a limitation of the present invention.

For convenience of description, terms used in the specification to describe positions, such as "above … …", "to the left of … …", "to the front of … …", etc., are used only to describe spatial positional relationships of a certain component with respect to other components of the embodiments shown in the drawings, and when the components are placed in different positions, the relative positions may be changed, so the positional relationships with respect to the embodiments of the drawings should not limit the present invention.

In addition, it should be noted that the terms "first", "second", etc. are used in the description merely for distinguishing similar elements, and there is no sequence, so it should not be construed that the scope of the present invention is limited.

The conception of the invention is as follows: the first evaporator for the refrigerating chamber is arranged in the chamber between the refrigerating chamber and the freezing chamber of the refrigerator, the evaporator chamber originally arranged at the rear part of the refrigerating chamber of the refrigerator is canceled, the space utilization rate of the refrigerating chamber of the refrigerator is effectively improved, the air supply and the return air of the first evaporator are connected with the freezing partition plate in the freezing chamber, and the existing freezing partition plate structure is utilized to realize various modes of air supply of the freezing chamber.

The double-evaporator refrigerator provided by the invention comprises: the refrigerator comprises a refrigerating chamber, a freezing partition plate positioned in the middle of the freezing chamber, a first evaporator and an air supply assembly which are arranged between the refrigerating chamber and the freezing chamber, wherein the air supply assembly is communicated with the freezing partition plate in the freezing chamber, an air duct, an air outlet and an air return opening are formed in the freezing partition plate, and an electric air door is arranged in the air outlet and the air return opening to form an air path circulation for cooling the freezing chamber by the first evaporator.

Fig. 1 and 2 are side views of a dual evaporator refrigerator according to the present invention. The ice making chamber is not provided in fig. 1, and the ice making chamber is provided in fig. 2. As can be seen from fig. 1, the side-by-side dual evaporator refrigerator includes a refrigerating compartment 1 and a freezing compartment 2. In a conventional dual evaporator refrigerator, an evaporator for cooling a refrigerating compartment is a first evaporator 4, and an evaporator for cooling a freezing compartment is a second evaporator 5. The first evaporator and the second evaporator are arranged at the rear part of the refrigerator liner and occupy part of the space of the refrigerating chamber and the freezing chamber.

The technical proposal provided by the invention is that the first evaporator 4 and the air supply component thereof are arranged in the space between the refrigerating chamber and the freezing chamber. The air supply assembly of the first evaporator comprises a circulating fan 6, a refrigerating air duct 3, a refrigerating air supply air door 7 and a refrigerating return air door 8, and the two air doors are all electric air doors. The first evaporator chamber is communicated with the refrigerating chamber through a refrigerating air supply air door 7 and a refrigerating air return air door 8, cold air cooled by the first evaporator is blown into the refrigerating chamber through the refrigerating air supply air door, circulates in the refrigerating chamber through the refrigerating air duct 3, and then returns to the first evaporator chamber from the refrigerating air return air door 8, so that the cooling circulation of the refrigerating chamber is completed.

The first evaporator and the air supply assembly for the refrigerating chamber of the refrigerator are arranged in the space between the freezing chamber and the refrigerating chamber of the refrigerator, so that the evaporator chamber at the rear part of the refrigerating chamber of the refrigerator is eliminated, and the space utilization rate of the refrigerating chamber of the refrigerator is effectively improved.

As shown in fig. 3 to 6, a vertical beam 9 is provided in the middle of the freezing chamber of the double evaporator refrigerator, against which the door body is abutted when the refrigerator door is closed. The rear part of the vertical beam is provided with a frame-type freezing partition plate 10, and an air outlet 13 and an air return 14 which are associated with the second evaporator and used for supplying cold to the freezing chamber are arranged on the frame-type freezing partition plate. Cold air cooled by the second evaporator is sent into the freezing chamber through an air outlet on the freezing partition plate, and returns to the second evaporator for circulation through an air return port after the freezing chamber circulates.

In the embodiment of the invention shown in fig. 1, the first evaporator 4 may cool the freezer compartment in addition to the refrigerator compartment. The air supply assembly of the first evaporator further comprises a freezing air supply air door 11 and a freezing return air door 12, and the two air doors are communicated with the air channel in the freezing partition plate 10 of the freezing chamber to form a circulating air channel for cooling the freezing chamber by the first evaporator. The refrigerating partition board 10 is provided with an air outlet 13 and an air return 14, and is internally provided with an electric air door. Because the air supply component of the first evaporator is communicated with the freezing partition plate in the freezing chamber, cold air cooled by the first evaporator can be blown into the freezing partition plate 10, and then the cold air is blown into the freezing chamber through an air outlet and an air return opening arranged on the freezing partition plate. The improvement can accelerate the freezing speed of the freezing chamber, and is particularly suitable for quick ice making or quick freezing.

In the refrigerating system, the first evaporator 4 and the second evaporator 5 are connected through a pipeline, the two are controlled through an electric valve, and when the refrigerating chamber has a refrigerating requirement, the electric valve is switched into the first evaporator for refrigerating; when the refrigerating chamber has no refrigeration requirement, the electric valve is switched to the first evaporator to not refrigerate. In a conventional refrigerator, a refrigerating chamber is cooled by a first evaporator, and the first evaporator is not operated when the refrigerating chamber reaches a set temperature. The refrigerating chamber is provided with cooling capacity by the second evaporator, and the purpose of refrigerating circulation of the refrigerating chamber is achieved through the functions of the second evaporator, the air duct on the refrigerating partition plate and the fan.

For refrigerators that can provide ice making function, a special ice making chamber 17 is generally provided in the freezing chamber, and an automatic ice making and taking device is provided therein, so that ice making and taking operations can be automatically completed. The ice making chamber is provided with cooling capacity required for making ice by the second evaporator 5. The load of the freezing chamber is relatively large, so that the time for making ice is relatively long, quick ice making cannot be realized, and the ice is difficult to take due to the adhesion between ice cubes and ice making equipment.

As shown in fig. 2, the ice making chamber 17 is provided at the uppermost part of the freezing chamber, just below the first evaporator, and the cooling capacity required for making ice is simultaneously provided by the first evaporator and the second evaporator. The air supply assembly of the first evaporator is communicated with the air channel of the freezing partition board 10 in the freezing chamber through an electric air door, and the freezing partition board is provided with an air outlet and an air return opening corresponding to the ice making chamber, so that cold air generated by the first evaporator can be blown into the ice making chamber through the freezing partition board; the cold air generated by the second evaporator can also be communicated with the ice making chamber in the freezing chamber through the air outlet and the air return opening of the freezing partition plate, thereby achieving the effect of rapidly making ice.

Because the refrigerating load of the refrigerating chamber is low and the required evaporator is small, the first evaporator is arranged between the refrigerating chamber and the freezing chamber and is positioned right above the ice making chamber, so that the using space of the refrigerating chamber is increased, and the refrigerating capacity of the first evaporator can be used for quickly making ice of the ice making chamber.

As shown in fig. 3, as another embodiment of the present invention, a quick-freezing chamber may be further disposed in the freezing chamber 2, where the quick-freezing chamber is located below the first evaporator and adjacent to the ice making chamber, and an air outlet and an air return opening that are communicated with the quick-freezing chamber are disposed on the freezing partition plate, and an electric air door is disposed in the air outlet or the air return opening. The first evaporator 4 can provide cooling capacity for both the ice making chamber and the quick freezing chamber. The purpose of this arrangement is also to make the first evaporator provide cold for the quick cooling chamber, so as to achieve the purpose of quick cooling.

As shown in fig. 1, a heater 15 is provided below the first evaporator, in this embodiment a steel tube heater is used for defrosting the first evaporator. The heat exchanging effect is reduced when the evaporator frosts, and thus the refrigerator must be defrosted at regular time to improve the heat exchanging efficiency.

A water pan 16 is also provided below the heater for receiving water from defrosting and draining it through a conduit.

In normal use, the first evaporator 4 provides cold to the refrigerating chamber, the second evaporator 5 provides cold to the freezing chamber, the electric air door between the first evaporator and the freezing partition plate of the freezing chamber is closed, and at this time, the first evaporator does not exchange heat with the freezing chamber. When a user gives an ice making or quick cooling instruction to the refrigerator, an electric air door between the first evaporator 4 and the freezing partition plate is opened, cold air enters the freezing partition plate 10 from the freezing air supply air door 11, enters the ice making chamber through the air outlet 13 on the freezing partition plate, and returns to the chamber of the first evaporator through the air return port 14 and the freezing air return air door 12 on the freezing partition plate after the ice making chamber circulates, so that the purpose of quickly cooling the ice making chamber can be achieved, the temperature of other chambers in the freezing chamber is less influenced, and the purpose of accurately controlling the temperature is achieved. When the quick cooling or ice making process is completed, the electric air door in the freezing partition plate is closed, and the ice making or quick cooling cycle of the first evaporator 4 to the freezing chamber is ended.

Preferably, the heater 15 at the first evaporator is controlled to heat before the air supply assembly of the first evaporator closes the air door leading to the ice making chamber, and the cold air with raised temperature is blown into the ice making chamber by slight heating, so that adhesion between ice cubes and the ice making device is improved, and ice taking is facilitated. In addition, the temperature of the ice making chamber is too low after quick cooling, so that the temperature of the ice making chamber can be increased by heating through the steel pipe heater, and the temperature of the whole freezing chamber is prevented from being influenced by the too low temperature.

In the invention, the first evaporator and the second evaporator are preferably fin-type evaporators, and the heat exchange efficiency is high.

In summary, the double-evaporator refrigerator provided by the invention increases the effective space of the refrigerating chamber through the position optimization of the first evaporator, improves the uniformity of the temperature in the freezing chamber, and can achieve the effects of rapidly making ice and reducing the difficulty of ice taking in the ice making chamber.

The foregoing is only a specific embodiment of the invention. It should be noted that any modifications, equivalent substitutions and variations made within the spirit and scope of the inventive concept should be included in the scope of the present invention.

Claims

1. A double-evaporator refrigerator, comprising a refrigerating chamber and a freezing chamber, wherein the freezing chamber is provided with a freezing partition, and is characterized in that it also comprises a first evaporator and an air supply assembly installed between the refrigerating chamber and the freezing chamber, wherein the air supply assembly is connected to the freezing partition in the freezing chamber, wherein an air duct, an air outlet and a return air outlet are provided on the freezing partition, wherein the air outlet and the return air outlet are built-in with electric dampers, constituting an air circulation for the first evaporator to supply cold air to the freezing chamber.

2. The dual-evaporator refrigerator as described in claim 1 is characterized in that the freezer compartment is provided with an ice-making compartment, the ice-making compartment is located below the first evaporator, an automatic ice-making and ice-taking device is installed in the ice-making compartment, an air outlet and an air return outlet communicating with the ice-making compartment are provided on the freezer partition, and the air outlet and the air return outlet are built-in with electric dampers.

3. The dual-evaporator refrigerator as described in claim 2 is characterized in that the freezing chamber is also provided with a quick-freezing chamber, the quick-freezing chamber is located below the first evaporator and adjacent to the ice-making chamber, the freezing partition is provided with an air outlet and an air return outlet communicated with the quick-freezing chamber, and the air outlet and the air return outlet are built-in with electric dampers.

4. The dual-evaporator refrigerator according to claim 1 is characterized in that the chamber in which the first evaporator is arranged includes a circulating fan and is connected to the refrigerating chamber through a refrigerating air supply damper, a refrigerating air return vent and an air duct.

5. The dual-evaporator refrigerator according to claim 1, characterized in that a heater is provided below the first evaporator.

6. The double-evaporator refrigerator according to claim 5, characterized in that a water receiving tray is provided below the heater.

7. The dual-evaporator refrigerator as described in claim 1 is characterized in that it also includes a second evaporator arranged on the outside of the inner tank at the rear of the freezer compartment, which is used to refrigerate the freezer compartment. The first evaporator and the second evaporator are connected through a pipeline and an electric valve. When the refrigerator compartment has a refrigeration demand, the electric valve opens to allow the first evaporator to refrigerate; when the refrigerator compartment has no refrigeration demand, the electric valve closes and the first evaporator does not refrigerate.

8. The dual-evaporator refrigerator as described in claim 2 or 3 is characterized in that, when the user issues an ice-making or quick-cooling instruction to the refrigerator, the electric damper between the first evaporator and the freezing partition opens, and the cold air enters the ice-making chamber or the quick-freezing chamber from the air outlet on the freezing partition for circulation, and then returns to the first evaporator chamber through the return air outlet on the freezing partition; when the quick-cooling or ice-making process is completed, the electric damper on the freezing partition is closed, ending the air supply circulation of the first evaporator to the ice-making chamber or the quick-freezing chamber.

9. The double-evaporator refrigerator as described in claim 8 is characterized in that, before the first evaporator ends the air supply cycle to the ice-making chamber or the quick-cooling chamber, the heater is turned on to heat the first evaporator, and the air with increased temperature is sent to the ice-making chamber or the quick-cooling chamber to make ice cubes easier to separate, or to prevent the ice-making room from being too cold and affecting the temperature of the entire freezer chamber.

10. The double-evaporator refrigerator according to claim 7, characterized in that both the first evaporator and the second evaporator are fin-tube evaporators.