Refrigerator

Abstract

The utility model relates to a refrigerator. The refrigerator comprises a refrigerator body; a door attached to the cabinet so as to be openable and closable; the compressor is arranged in the box body; the evaporator is arranged in the box body; the fan blows the gas cooled by the evaporator into a refrigerating chamber, a temperature changing chamber and a freezing chamber of the refrigerator respectively; a fan shutter that opens and closes the blowing of gas into the freezing chamber; the refrigerating chamber refrigeration cycle air path is configured to blow air into the refrigerating chamber and return the air to the evaporator from the refrigerating chamber return air inlet; the variable-temperature chamber refrigeration cycle air path is configured to blow air into the variable-temperature chamber and return the air to the evaporator from the variable-temperature chamber return air inlet; and the freezing chamber refrigeration circulation air path is configured to blow air into the freezing chamber and return the air to the evaporator from the freezing chamber air return port. According to the refrigerator, the volume occupied by the evaporator and the air path can be reduced, the overall use volume of the refrigerator can be increased, the refrigerating efficiency can be improved, and the overall energy consumption of the refrigerator can be reduced.

Description

Technical Field

[0001] The utility model relates to a refrigerator. Background Art

[0002] In the existing single-system refrigerator, the refrigerating chamber and the variable temperature chamber are arranged at the upper part of the refrigerator, the variable temperature chamber is located at the bottom of the refrigerating chamber and shares a large compartment with the refrigerating chamber, the freezing chamber is arranged at the bottom of the refrigerator, the compressor is arranged at the top of the refrigerator and located behind the top of the refrigerating chamber, the evaporator is arranged in the freezing chamber, the refrigerating chamber, the variable temperature chamber and the freezing chamber share one evaporator, and behind the freezing chamber, the refrigerating chamber return air duct and the variable temperature chamber return air duct, the refrigerating chamber and the variable temperature chamber return air foam, the evaporator, the fan, and the freezing chamber air duct are arranged in sequence from back to front behind the freezing chamber, and a defrost water evaporation chamber is arranged at the bottom of the freezing chamber.

[0003] In such a refrigerator, the following technical problems exist: (1) Since the freezer compartment is passively cooled when the refrigerator compartment or the variable temperature chamber is in operation, the temperature of the freezer compartment fluctuates greatly. In order to suppress the large temperature fluctuations in the freezer compartment, the refrigeration temperature needs to be lowered, and the refrigeration cycle volume becomes larger, resulting in low refrigeration efficiency and increased energy consumption. The corresponding evaporator design margin is also relatively large, so the volume occupied by the evaporator is relatively large, reducing the usable volume of the refrigerator; (2) When the refrigerator compartment or the variable temperature chamber is in operation, the freezer compartment is also passively cooled. In order to ensure the air volume of the refrigerator compartment and the variable temperature chamber and reduce the wind resistance, the volume of the air path of the refrigerator compartment and the variable temperature chamber is relatively large. At the same time, in order to suppress the temperature rise of the freezer compartment, the evaporation temperature is also relatively low. The thickness of the insulation foam surface of the air duct of the storage room and the variable temperature room is also relatively large, and the corresponding overall air duct volume is also large, which reduces the usable volume of the refrigerator; (3) The cold storage room and the variable temperature room share a return air duct. When the set temperature difference or humidity difference between the cold storage room and the variable temperature room is large, freezing caused by the intersection of cold and hot or frost blockage caused by abnormal frost will occur in the return air duct, resulting in low refrigeration efficiency of the cold storage room and the variable temperature room and increased energy consumption of the refrigerator as a whole. In order to prevent freezing or frost blockage, the design volume of the return air duct is often larger, which reduces the usable volume of the freezer; (4) The cold storage room and the variable temperature room are designed with a return air duct at the back, which occupies a larger volume, further reducing the usable volume of the refrigerator. Utility Model Content

[0004] In view of the above-mentioned problems, the utility model optimizes the structure and other aspects of the air path of the existing single-system refrigerator, and aims to provide a refrigerator that can reduce the volume occupied by the evaporator and the air path to increase the overall usable volume of the refrigerator, and can improve the refrigeration efficiency to reduce the overall energy consumption of the refrigerator.

[0005] In order to achieve the above-mentioned purpose, the refrigerator involved in the utility model comprises: a box body; a door, which is installed in the box body in an openable and closable manner; a compressor, which is arranged in the box body; an evaporator, which is arranged in the box body; a fan, which blows the gas cooled by the evaporator into the cold storage chamber, the variable temperature chamber and the freezer chamber of the refrigerator respectively; a fan baffle, which opens and closes the blowing of the gas into the freezer chamber; a refrigeration circulation air path for the cold storage chamber, which is configured to blow the gas into the cold storage chamber and return it to the evaporator from the return air port of the cold storage chamber; a refrigeration circulation air path for the variable temperature chamber, which is configured to blow the gas into the variable temperature chamber and return it to the evaporator from the return air port of the variable temperature chamber; a refrigeration circulation air path for the freezer chamber, which is configured to blow the gas into the freezer chamber and return it to the evaporator from the return air port of the freezer chamber.

[0006] In the refrigerator involved in the above-mentioned utility model, by having a fan baffle for opening and closing the blowing of cooling gas into the freezer chamber, the cold storage chamber, the variable temperature chamber and the freezer chamber can be cooled independently, the refrigeration efficiency is improved, and the overall energy consumption of the refrigerator is reduced. Moreover, under the premise of ensuring the refrigeration capacity, the corresponding evaporator does not need an interference design, the volume becomes smaller, and the overall usable volume of the refrigerator is improved. Moreover, the cold storage chamber and the variable temperature chamber can be cooled independently, and the air volume is improved. Under the premise of ensuring the refrigeration air volume, the thickness of the corresponding cold storage chamber and variable temperature chamber air duct is reduced. At the same time, the evaporation temperature rises during refrigeration, and the thickness of the cold storage chamber and variable temperature chamber air duct is reduced. As a result, the cold storage chamber and variable temperature chamber air duct become thin and smaller air ducts, further improving the overall usable volume of the refrigerator.

[0007] In the refrigerator involved in the utility model, the fan baffle may be provided with an air outlet in the air inlet direction of the refrigerating chamber and the temperature-changing chamber, and no air outlet may be provided in the air inlet direction of the freezing chamber. In this way, when the fan baffle is closed, the blowing of cooling gas into the freezing chamber can be blocked, and when the fan baffle is opened, the blowing of cooling gas into the freezing chamber can be allowed, thereby enabling the opening and closing of the blowing of gas into the freezing chamber to be realized with a simple structure.

[0008] In the above-mentioned refrigerator involved in the utility model, the compressor may be arranged on the top of the refrigerator and located behind the refrigerating chamber, and the evaporator may be arranged behind the freezing chamber.

[0009] In the refrigerator of the utility model, the refrigeration circulation air path of the refrigerating chamber may include a refrigerating chamber air path for the gas blown into the refrigerating chamber to circulate, and the refrigerating chamber air path may include an embedded air path of a foam material embedded in the periphery of the compressor. In this way, by adopting an embedded design for the refrigerating chamber air path at the top, the usable height and depth of the top of the refrigerating chamber are increased, further increasing the usable volume of the entire refrigerator.

[0010] In the refrigerator involved in the above-mentioned utility model, the refrigeration circulation air path of the cold storage room may include a return air path for the cold storage room for the gas returned from the return air port of the cold storage room to the evaporator, and the refrigeration circulation air path of the variable temperature room may include a return air path for the variable temperature room for the gas returned from the return air port of the variable temperature room to the evaporator, and the return air path of the cold storage room and the return air path of the variable temperature room are independent of each other. In this way, the cold storage room and the variable temperature room can return air separately, and the problems such as freezing / abnormal frost in the return air path caused by the large difference in temperature and humidity between the cold storage room and the variable temperature room can be reliably avoided, and the temperature of the variable temperature room can be designed to be lower, thereby expanding the function of the variable temperature room.

[0011] In the refrigerator involved in the above-mentioned utility model, the refrigerating chamber return air inlet and the variable temperature chamber return air inlet can also be located on both sides of the width direction of the refrigerator, and the refrigerating chamber return air duct and the variable temperature chamber return air duct can be located on both sides of the width direction of the refrigerator.

[0012] In the refrigerator involved in the utility model, evaporator return air ports may be provided on both sides of the bottom of the evaporator.

[0013] In the refrigerator of the utility model, the return air duct of the refrigerating chamber and the return air duct of the temperature-changing chamber can be respectively embedded in the foam material on both sides of the evaporator. In this way, the space behind the freezing chamber is not occupied, the use depth of the freezing chamber is increased, and the overall use volume of the refrigerator is further increased.

[0014] In the refrigerator involved in the above-mentioned utility model, a return air damper may be provided in the return air duct of the variable temperature chamber. In this way, when the temperature of the variable temperature chamber is set low, in order to suppress the temperature fluctuation of the variable temperature chamber, the return air damper is closed after the refrigeration is completed, thereby suppressing the influence of air convection during defrosting or refrigeration of the refrigerator compartment. Moreover, by providing the return air damper in the return air duct of the variable temperature chamber, the temperature fluctuation of the variable temperature chamber can be suppressed to a low level.

[0015] In the refrigerator of the utility model, the refrigerator may further include a refrigerating chamber air path baffle for opening and closing the blowing of the gas into the refrigerating chamber and a variable temperature chamber air path baffle for opening and closing the blowing of the gas into the variable temperature chamber. In this way, the independent cooling of the refrigerating chamber and the variable temperature chamber can be realized more reliably.

[0016] According to the utility model, a refrigerator can be provided which can reduce the volume occupied by the evaporator and the air duct to increase the overall usable volume of the refrigerator, and can improve the refrigeration efficiency to reduce the overall energy consumption of the refrigerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other objects, features and advantages of the present invention will be more clearly understood through the following detailed description in conjunction with the accompanying drawings, in which:

[0018] Figure 1 It is a cross-sectional view of the refrigerator involved in this embodiment when viewed from the side.

[0019] Figure 2 This is a cross-sectional view of the refrigerator according to the present embodiment when viewed from the front.

[0020] Figure 3 It is a cross-sectional view of the refrigerator involved in this embodiment when viewed from above. DETAILED DESCRIPTION

[0021] Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the present invention is described in detail. In the description of the accompanying drawings, the same or equivalent elements are marked with the same symbols, and repeated descriptions are omitted. In addition, the positional relationship of up, down, left, right, etc. is not specifically described based on the positional relationship shown in the drawings. In addition, the dimensional ratio of the drawings is not limited to the ratio shown in the drawings except for the drawing.

[0022] In this specification, it should be understood that terms such as “includes,” “comprising,” and “having” refer to the existence of features, quantities, steps, operations, elements, parts, or a combination thereof, but do not exclude the existence of one or more other features, quantities, steps, operations, elements, parts, or a combination thereof.

[0023] Figure 1 It is a cross-sectional view of the refrigerator involved in this embodiment when viewed from the side. Figure 2 This is a cross-sectional view of the refrigerator according to the present embodiment when viewed from the front. Figure 3 It is a cross-sectional view of the refrigerator involved in this embodiment when viewed from above.

[0024] like Figure 1 to Figure 3 As shown, the refrigerator 1 involved in this embodiment includes a box body 10, a door 20, a compressor 30, an evaporator 40, a fan 50 and a fan baffle 60. The door 20 is installed on the box body 10 so as to be openable and closable. The compressor 30 is arranged in the box body 10. The evaporator 40 is arranged in the box body 10. The fan 50 blows the gas cooled by the evaporator 40 into the refrigerating chamber 11, the temperature-changing chamber 12 and the freezing chamber 13 of the refrigerator 1.

[0025] The fan baffle 60 opens and closes the blowing of gas into the freezing chamber 13. Figure 2As shown, an air outlet 601 is provided at the top of the fan baffle 60 in the air inlet direction of the refrigerating chamber 11 and the temperature-changing chamber 12. The rest of the fan baffle 60 is closed (i.e., no air outlet is provided at the fan baffle 60 in the air inlet direction of the freezing chamber 13). In this way, by forming an air outlet at the top of the fan baffle and not forming an air outlet at the bottom of the fan baffle, when the fan baffle is closed, the blowing of cooling gas into the freezing chamber can be blocked, and when the fan baffle is opened, the blowing of cooling gas into the freezing chamber can be enabled, thereby enabling the opening and closing of the blowing of gas into the freezing chamber to be realized with a simple structure.

[0026] In the refrigerator 1 involved in the present embodiment, when the freezer compartment 13 is refrigerated, the compressor 30 is turned on, the evaporator 40 is refrigerated, and the fan 50 is running. The gas cooled by the evaporator 40 is blown into the freezer compartment 13 through the freezer compartment air path 131, and is sucked (returned) to the evaporator 40 from the freezer compartment return air port 132 located at the bottom of the freezer compartment 13, thereby forming a freezer compartment refrigeration circulation air path. When the cold storage room 11 or the variable temperature room 12 is cooled, the fan baffle 60 is closed, and the gas cooled by the evaporator 40 is not blown into the freezer room 13; the cold storage room air path baffle 111 or the variable temperature room air path baffle 121 is opened, and the gas cooled by the evaporator 40 is blown out by the fan 50, enters the cold storage room air path 112 or the variable temperature room air path 122 through the cold storage room air path baffle 111 or the variable temperature room air path baffle 121 and is blown into the cold storage room 11 or the variable temperature room 12, and is sucked from the cold storage room return air inlet 113 or the variable temperature room return air inlet 123 after cooling the cold storage room 11 or the variable temperature room 12, and enters the evaporator 40 through the cold storage room return air path 114 or the variable temperature room return air path 124 which are arranged on the back of the freezer room 13 and located on both sides of the evaporator 40, thereby forming a cold storage room refrigeration circulation air path or a variable temperature room refrigeration circulation air path. That is, the refrigerating chamber refrigeration circulation air path is configured to blow gas into the refrigerating chamber and return gas from the refrigerating chamber return air port to the evaporator. The variable temperature chamber refrigeration circulation air path is configured to blow gas into the variable temperature chamber and return gas from the variable temperature chamber return air port to the evaporator. The freezing chamber refrigeration circulation air path is configured to blow gas into the freezing chamber and return gas from the freezing chamber return air port to the evaporator.

[0027] In this way, by having a fan baffle that opens and closes the blowing of cooling gas into the freezer compartment, the refrigerator compartment, variable temperature chamber and freezer compartment can be cooled independently, the refrigeration efficiency is improved, and the overall energy consumption of the refrigerator is reduced. Under the premise of ensuring the refrigeration capacity, the corresponding evaporator does not need an interference design, and the volume becomes smaller, which increases the overall usable volume of the refrigerator. In addition, the refrigerator compartment and variable temperature chamber can be cooled independently, and the air volume is increased. Under the premise of ensuring the refrigeration air volume, the thickness of the corresponding air ducts of the refrigerator compartment and variable temperature chamber is reduced. At the same time, the evaporation temperature rises during refrigeration, and the thickness of the air ducts of the refrigerator compartment and variable temperature chamber is reduced. As a result, the air ducts of the refrigerator compartment and variable temperature chamber become thinner and smaller in volume, further increasing the overall usable volume of the refrigerator.

[0028] In other words, by providing a fan baffle, the freezer air duct can be closed separately, thereby realizing separate refrigeration of the refrigerator or variable temperature room. Since the freezer air duct can be refrigerated separately, the air volume is greatly increased. Under the condition of ensuring the air volume of the refrigerator or variable temperature room, the volume of the refrigerator air duct and the variable temperature room air duct can be reduced by 25%. Moreover, since the refrigerator or variable temperature room can be refrigerated separately, the refrigeration capacity required by the refrigeration system is greatly reduced compared with the existing overall refrigeration. By reducing the refrigeration cycle volume and increasing the temperature of the evaporator, the temperature of the gas entering the refrigerator air duct and the variable temperature room air duct is increased from -25°C to about -15°C, and the temperature difference between the air supply air duct and the refrigerator and variable temperature room is reduced, which suppresses abnormal condensation on the surface of the refrigerator and variable temperature room air duct cover plate. The thickness of the refrigerator air duct foam and the variable temperature room air duct foam can be reduced by 30%, thereby further increasing the usable volume of the refrigerator. Furthermore, since the cold storage room and the temperature-changing room can be cooled separately, compared with the existing integral refrigeration, the efficiency of the refrigeration system is improved, the capacity required for the evaporator is reduced, the evaporator becomes thin and its volume can be reduced by 25%.

[0029] In addition, the compressor 30 is provided at the top of the refrigerator 1 and is located behind the refrigerating chamber 11. The evaporator 40 is provided behind the freezing chamber 13.

[0030] In addition, as described above, the refrigerator compartment refrigeration circulation air path includes a refrigerator compartment air path 112 for circulating the gas blown into the refrigerator compartment 11, and the refrigerator compartment air path 112 includes an embedded air path 1121 of a foam material embedded in the periphery of the compressor 30. When the refrigerator is designed as a top compressor, the depth of the top space of the refrigerator compartment is small. The refrigerator compartment air path at the top adopts an embedded design, combined with the refrigerator compartment being cooled separately, the air volume is increased, and the air volume can be ensured in the narrow space of the foam material at the top. The use depth and height of the top of the refrigerator compartment can be increased by more than 30 mm, further increasing the overall use volume of the refrigerator.

[0031] In addition, as described above, the refrigeration circulation air path of the cold storage room includes the return air path 114 for the cold storage room for the gas returning from the return air port 113 of the cold storage room to the evaporator 40, and the refrigeration circulation air path of the variable temperature room includes the return air path 124 for the gas returning from the return air port 123 of the variable temperature room to the evaporator 40, and the return air path 114 of the cold storage room and the return air path 124 of the variable temperature room are independent of each other. In this way, the cold storage room and the variable temperature room can return air separately, which can effectively avoid the problems of freezing / abnormal frost in the return air path caused by the large difference in temperature and humidity between the cold storage room and the variable temperature room, and the temperature of the variable temperature room can be designed to be lower, which expands the function of the variable temperature room.

[0032] In addition, the refrigerating chamber return air inlet 113 and the variable temperature chamber return air inlet 123 are located on both sides of the refrigerator 1 in the width direction, and the refrigerating chamber return air passage 114 and the variable temperature chamber return air passage 124 are located on both sides of the refrigerator 1 in the width direction.

[0033] In addition, evaporator return air ports 401 are provided on both sides of the bottom of the evaporator 40. Thus, the gas returned from the refrigerating chamber 11 or the temperature-changing chamber 12 can be returned to the evaporator 40 via the evaporator return air ports 401 on both sides.

[0034] In addition, the return air duct 114 of the refrigerating chamber and the return air duct 124 of the temperature-changing chamber are preferably foam materials respectively embedded in the two sides of the evaporator 40. In this way, the ineffective space in the foam material is fully utilized, the back space of the freezer is not occupied, and the usable depth of the freezer can be increased by more than 25 mm, further increasing the overall usable volume of the refrigerator.

[0035] In addition, a return air damper 125 may also be provided in the return air duct 124 of the variable temperature chamber. Thus, when the temperature of the variable temperature chamber is set low, in order to suppress the temperature fluctuation of the variable temperature chamber, the return air damper is closed after the refrigeration is completed, thereby suppressing the influence of air convection during defrosting or refrigeration of the refrigeration chamber. Moreover, by providing the return air damper in the return air duct of the variable temperature chamber, the temperature fluctuation of the variable temperature chamber can be suppressed within 2K.

[0036] In addition, as described above, the refrigerator 1 further includes a refrigerating chamber air path damper 111 for opening and closing the blowing of gas into the refrigerating chamber 11 and a variable temperature chamber air path damper 121 for opening and closing the blowing of gas into the variable temperature chamber 12. In this way, the independent refrigeration of the refrigerating chamber and the variable temperature chamber can be realized more reliably.

[0037] In addition, if Figure 1 As shown, the refrigerating chamber air duct 112 and the variable temperature chamber air duct 122 may also be provided with a refrigerating chamber air duct foam 115 and a variable temperature chamber air duct foam 126 for heat preservation, respectively. In this way, abnormal condensation on the air duct surface can be avoided.

[0038] According to the utility model, a refrigerator can be provided which can reduce the volume occupied by the evaporator and the air duct to increase the overall usable volume of the refrigerator, and can improve the refrigeration efficiency to reduce the overall energy consumption of the refrigerator.

[0039] The embodiments of the present invention are described above, but the present invention is not limited to the above embodiments. Those skilled in the art can modify and change the present invention as needed without departing from the essential spirit and scope of the present invention. These modifications and changes all fall within the scope of the present invention.

Claims

1. A refrigerator, characterized in that: The refrigerator comprises: Box; A door, which is installed on the box body in an openable and closable manner; A compressor, which is arranged in the box; an evaporator, which is disposed in the housing; A fan, which blows the gas cooled by the evaporator into the refrigerating chamber, the temperature-changing chamber and the freezing chamber of the refrigerator respectively; a fan baffle for opening and closing the blowing of the gas into the freezing chamber; A refrigeration circulation air path for the refrigeration chamber, which is configured to blow the gas into the refrigeration chamber and return the gas from the refrigeration chamber return air port to the evaporator; A variable temperature chamber refrigeration circulation air path, which is configured to blow the gas into the variable temperature chamber and return the gas from the variable temperature chamber return air port to the evaporator; and The freezer compartment refrigeration circulation air passage is configured to blow the gas into the freezer compartment and return the gas to the evaporator from a freezer compartment return air port.

2. The refrigerator according to claim 1, characterized in that: The fan baffle is provided with an air outlet in the air inlet direction of the refrigerating chamber and the temperature-changing chamber, but is not provided with an air outlet in the air inlet direction of the freezing chamber.

3. The refrigerator according to claim 1, characterized in that: The compressor is arranged on the top of the refrigerator and is located behind the refrigerating chamber. The evaporator is arranged at the rear of the freezing chamber.

4. The refrigerator according to claim 3, characterized in that: The refrigeration circulation air passage for the refrigerating chamber includes a refrigerating chamber air passage for the gas blown into the refrigerating chamber to flow through. The refrigerating chamber air passage includes an embedded air passage made of a foam material embedded around the compressor.

5. The refrigerator according to any one of claims 1 to 4, characterized in that: The refrigeration circulation air path of the refrigerating chamber includes a refrigerating chamber return air path for the gas returning from the refrigerating chamber return air port to the evaporator to flow through. The variable temperature room refrigeration circulation air path includes a variable temperature room return air path for the gas returning from the variable temperature room return air port to the evaporator to flow. The refrigerating chamber return air passage and the temperature-changing chamber return air passage are independent of each other.

6. The refrigerator according to claim 5, characterized in that: The refrigerating chamber return air vent and the variable temperature chamber return air vent are located on both sides of the width direction of the refrigerator. The refrigerating chamber return air passage and the variable temperature chamber return air passage are located on both sides of the refrigerator in the width direction.

7. The refrigerator according to claim 6, characterized in that Evaporator return air ports are provided on both sides of the bottom of the evaporator.

8. The refrigerator according to claim 5, characterized in that The refrigerating chamber return air passage and the variable temperature chamber return air passage are respectively embedded in the foaming materials on both sides of the evaporator.

9. The refrigerator according to claim 5, characterized in that: A return air baffle is provided on the return air passage of the temperature-changing chamber.

10. The refrigerator according to any one of claims 1 to 4, characterized in that: The refrigerator further includes a refrigerating chamber air path damper for opening and closing the blowing of the gas into the refrigerating chamber and a variable temperature chamber air path damper for opening and closing the blowing of the gas into the variable temperature chamber.

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