CN102997554B - Refrigerator - Google Patents

Abstract

The invention discloses a refrigerator, comprising: a box body, which has a refrigerating room, a variable temperature room and a freezing room, the variable room is divided into a left variable room and a right variable room, and the freezing room is divided into a left upper freezing room, a right upper freezing room and a lower Freezer; left refrigerated door body and right refrigerated door body, the left refrigerated door body and right refrigerated door body are installed on the cabinet to open and close the refrigerated room; The right variable temperature drawer is arranged in the right variable chamber; the left upper freezer drawer, the right upper freezer drawer and the lower freezer drawer, the left upper freezer drawer is arranged in the left upper freezer chamber, the right upper freezer drawer is arranged in the right upper freezer chamber, and the lower freezer drawer is arranged in the lower freezer chamber; and the refrigeration system , The refrigeration system is arranged on the box body to refrigerate the refrigerating room, the left variable room, the right variable room and the freezing room respectively. The refrigerator according to the embodiment of the present invention has the advantages of convenient picking and placing of items, low power consumption, convenient storage of items, and good fresh-keeping effect.

Description

refrigerator

technical field

The invention relates to the field of household appliances, in particular to a refrigerator.

Background technique

With the improvement of the quality of life, people have higher and higher requirements for refrigerators. The existing refrigerators have the following disadvantages: it is troublesome to take and place items; high power consumption; inconvenient storage of items; and poor fresh-keeping effect.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a refrigerator that is convenient for taking and placing items, has low power consumption, is convenient for storing items, and has a good fresh-keeping effect.

In order to achieve the above object, the present invention proposes a refrigerator, which includes: a box body, the box body has a refrigerating room, a variable room and a freezing room, the variable room is divided into a left variable room and a right variable room, the The freezer compartment is divided into a left upper freezer, a right upper freezer and a lower freezer; a left freezer door and a right freezer door, which are installed on the box to open and close the The cold room; the left temperature-changing drawer and the right temperature-changing drawer, the left temperature-changing drawer can be moved back and forth in the left temperature-changing room, the right temperature-changing drawer can be moved back and forth in the right temperature-changing room; the left upper freezer drawer, An upper right freezer drawer and a lower freezer drawer, the upper left freezer drawer can be moved back and forth in the upper left freezer compartment, the upper right freezer drawer can be moved back and forth in the upper right freezer compartment, and the lower freezer drawer can move back and forth and a refrigerating system, the refrigerating system is arranged on the box body and is used to refrigerate the refrigerating room, the left changing room, the right changing room and the freezing room respectively .

According to the refrigerator according to the embodiment of the present invention, the refrigerating chamber is opened and closed by setting the side-by-side door structure of the left refrigerating door and the right refrigerating door, so that the user can only open the left refrigerating door when taking and placing items. and one of the right refrigerated door bodies, which is convenient and labor-saving. The freezer compartment can be divided into the upper left freezer compartment, the upper right freezer compartment and the lower freezer compartment by setting the upper left freezer drawer, the upper right freezer drawer and the lower freezer drawer. The compartments can not only store items conveniently, but also only need to open a corresponding compartment when taking out food, which can reduce the loss of cooling capacity and reduce power consumption. The left temperature-variable drawer and the right temperature-variable drawer are arranged in the temperature-variable room, and the left temperature-variable drawer and the right temperature-variable drawer divide the variable room into the left variable room and the right variable room. The temperature of the left-variable greenhouse and the right-variable greenhouse can be adjusted according to the volume requirements of the refrigerating chamber and the freezing chamber. For example, if there are too many items in the refrigerating room, the user can adjust the temperature of one or both of the left variable room and the right variable room to be consistent with the temperature of the refrigerating room, and store the items in the The left variable room and/or the right variable room can facilitate the storage of articles. And the multi-variable greenhouse can set different temperatures according to different foods, so that the foods can be stored at an appropriate temperature to facilitate the nutritional insurance of the foods. Therefore, the refrigerator according to the embodiment of the present invention has the advantages of convenient taking and placing of items, low power consumption, convenient storage of items, and good fresh-keeping effect.

In addition, the refrigerator according to the present invention also has the following additional technical features:

According to an embodiment of the present invention, the freezing chamber is provided with a freezing chamber beam and a freezing chamber vertical beam to divide the freezing chamber into the upper left freezing chamber, the upper right freezing chamber and the lower freezing chamber. Thus, the positions of the upper left freezer drawer, the upper right freezer drawer and the lower freezer drawer on the box body can be more stable.

According to an embodiment of the present invention, a variable temperature room crossbeam is provided between the variable temperature room and the freezing room, and a variable temperature room vertical beam is arranged inside the variable temperature room to divide the variable temperature room into the left variable room and the left variable room. Describe the right variable greenhouse. Thus, the positions of the left temperature-variable drawer and the right temperature-variable drawer on the box body can be made more stable.

According to an embodiment of the present invention, the refrigerating system includes a first refrigerating system for cooling the refrigerating chamber and a second refrigerating system for cooling the variable temperature chamber and the freezing chamber. Therefore, the setting of the temperature of each compartment of the refrigerator can be facilitated, thereby improving the storage effect of the refrigerator.

According to an embodiment of the present invention, a refrigerating air duct is provided on the rear side of the refrigerating room, and the refrigerating air duct has a refrigerating air outlet at the upper part and a refrigerating return air outlet at the lower part, and the first refrigerating system of the first refrigeration system The evaporator is arranged in the refrigerating air channel and between the refrigerating air outlet and the refrigerating return air outlet, and a refrigerating fan is arranged at the refrigerating air outlet. In this way, the first refrigeration system can cool the refrigerating chamber in an air-cooled manner, so that the refrigerating chamber has the advantages of fast cooling speed, no frost, good food freshness, and uniform temperature.

According to an embodiment of the present invention, a refrigerating air duct is provided on the rear side of the freezing compartment, and the refrigerating air duct has an upper freezing air outlet and a lower freezing air return opening, and the second cooling system of the second refrigeration system The evaporator is arranged in the refrigerating air duct and is located between the refrigerating air outlet and the refrigerating return air outlet, and the variable room is connected to the refrigerating air channel through the variable room air supply channel and the variable room return air channel , the freezing air outlet is provided with a freezing fan. Therefore, the second refrigeration system can cool the freezing chamber and the temperature-changing chamber in an air-cooled manner, so that the freezing chamber and the temperature-changing chamber can have fast cooling speed, no frost, and food freshness. Good performance, uniform temperature and so on.

According to an embodiment of the present invention, the air supply channel of the variable temperature room includes a left variable room air supply channel connected between the left variable room and the freezing air channel, and a left variable room air supply channel connected between the right variable room and the The air supply duct of the right variable greenhouse between the above-mentioned freezing air ducts, the return air duct of the variable greenhouse includes the return air duct of the left variable greenhouse connected between the left variable greenhouse and the freezing air duct and the return air duct connected in the The return air duct of the right variable room between the right variable room and the freezing air channel. Thus, the second refrigeration system can independently cool the left variable greenhouse and the right variable greenhouse, thereby improving the storage effect of the left variable greenhouse and the right variable greenhouse.

According to an embodiment of the present invention, the refrigerator further includes: a first damper arranged at the air outlet of the air supply duct of the left variable room; The second damper; the first temperature detector, the first temperature detector is used to detect the temperature in the left variable room; the second temperature detector, the second temperature detector is used to detect the temperature in the right variable room; and a controller, the controller is respectively connected with the first and second dampers and the first and second temperature detectors to control the switch of the first damper according to the detection signal of the first temperature detector And the opening and closing of the second damper is controlled according to the detection signal of the second temperature detector. Therefore, the temperature in the left-variable greenhouse and the right-variable greenhouse can be adjusted independently, and the structure is simple, the performance is reliable, and the implementation is easy.

According to an embodiment of the present invention, the left temperature-variable drawer, the right temperature-variable drawer, the left upper freezer drawer, the right upper freezer drawer and the lower freezer drawer are installed in the box through slide rails. Thus, the left temperature-variable drawer, the right temperature-variable drawer, the left upper freezer drawer, the right upper freezer drawer and the lower freezer drawer can be respectively mounted on the box body in a forward and backward manner, and the installation is convenient, low cost.

According to an embodiment of the present invention, the refrigerator further includes an ice maker disposed in one of the upper left freezer compartment and the upper right freezer compartment. In this way, not only can the refrigerator have the function of making ice, but also it is convenient to take ice and more energy-saving.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic structural view of a refrigerator according to an embodiment of the present invention;

2 is a cross-sectional view of a refrigerator according to an embodiment of the present invention;

FIG. 3 is an exploded view of a refrigerator according to an embodiment of the present invention.

Refrigerator 1, cabinet 100, refrigerating chamber 110, refrigerating air duct 111, first evaporator 112, refrigerating fan 113, left variable greenhouse 120, left variable greenhouse air supply duct 121, left variable greenhouse return air duct 122, the first A damper 123, a first temperature detector 124, a right variable room 130, a vertical beam 131 in a variable room, an upper left freezer 140, an upper right freezer 150, a lower freezer 160, a freezer air duct 161, a second evaporator 162, and a freezer fan 163. Freezer crossbeam 170, freezer vertical beam 180, variable room crossbeam 190, left refrigerated door body 200, right refrigerated door body 300, left variable temperature drawer 400, right variable temperature drawer 500, left upper freezer drawer 600, right upper freezer drawer 700, Lower freezer drawer 800 , slide rail 810 , partition 820 , ice maker 900 .

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

A refrigerator 1 according to an embodiment of the present invention will be described below with reference to FIGS. 1-3 . As shown in FIGS. 1-3 , the refrigerator 1 according to the embodiment of the present invention includes a box body 100, a left refrigeration door body 200, a right refrigeration door body 300, a left temperature-variable drawer 400, a right temperature-variable drawer 500, an upper left freezer drawer 600, an upper right Freezer drawer 700, lower freezer drawer 800 and refrigeration system.

Inside the box body 100 there is a refrigerating room 110, a changing room and a freezing room, the changing room is divided into a left changing room 120 and a right changing room 130, and the freezing room is divided into a left upper freezing room 140, a right upper freezing room 150 and a lower freezing room 160 (the left and right direction is shown by the arrow B in Figure 1 and Figure 3, and the up and down direction is shown by the arrow A in Figure 1-3). The left refrigerating door body 200 and the right refrigerating door body 300 are installed on the box body 100 to open and close the refrigerating room 110 . The left variable temperature drawer 400 is provided in the left variable temperature room 120 movably back and forth (the front and rear direction is shown by the arrow C in FIGS. 2 and 3 ), and is used to open and close the left variable temperature room 120 . The right variable temperature drawer 500 is provided in the right variable temperature room 130 movably back and forth, and is used for opening and closing the right variable temperature room 130 . The upper left freezer drawer 600 can be moved back and forth in the upper left freezer compartment 140 for opening and closing the upper left freezer compartment 140, and the upper right freezer drawer 700 can be moved back and forth in the upper right freezer compartment 150 for opening and closing the upper right freezer compartment. 150. The lower freezer drawer 800 is provided in the lower freezer compartment 160 movably back and forth. , for opening and closing the lower freezer compartment 160. The refrigerating system is arranged on the box body 100 to refrigerate the refrigerating room 110 , the left changing room 120 , the right changing room 130 and the freezing room.

The refrigerator 1 according to the embodiment of the present invention opens and closes the refrigerating chamber 110 by setting the side-by-side door structure of the left refrigerating door body 200 and the right refrigerating door body 300, so that the user can only open the left refrigerating door body 200 and the right refrigerating door body 200 when taking and placing items. Only one of the door bodies 300 is sufficient, which is convenient and labor-saving. The freezer compartment can be divided into the upper left freezer compartment 140, the upper right freezer compartment 150 and the lower freezer compartment 160 by setting the upper left freezer drawer 600, the upper right freezer drawer 700 and the lower freezer drawer 800. Items, and only need to open a corresponding compartment when taking out the food, which can reduce the loss of cold energy and reduce power consumption. The left variable temperature drawer 400 and the right temperature variable drawer 500 are arranged in the variable room, and the left variable temperature drawer 400 and the right variable temperature drawer 500 divide the variable temperature room into a left variable room 120 and a right variable temperature room 130. Adjust the temperature of the left variable room 120 and the right variable room 130 respectively according to the demand of the volume of the freezing room. For example, if there are too many items in the refrigerator compartment 110, the user can adjust the temperature of one or both of the left variable greenhouse 120 and the right variable greenhouse 130 to be consistent with the temperature of the refrigerator compartment 110, and store the items in the left variable greenhouse 120 and the right variable greenhouse 130. /or turn right into the greenhouse 130, thereby facilitating the storage of articles. And the multi-variable greenhouse can set different temperatures according to different foods, so that the foods can be stored at an appropriate temperature to facilitate the nutritional insurance of the foods. Therefore, the refrigerator 1 according to the embodiment of the present invention has the advantages of convenient taking and placing of items, low power consumption, convenient storage of items, and good fresh-keeping effect.

2 and 3 show a refrigerator 1 according to one embodiment of the present invention. As shown in FIGS. 2 and 3 , the freezing chamber may be provided with a freezing chamber beam 170 and a freezing chamber vertical beam 180 to divide the freezing chamber into an upper left freezing chamber 140 , an upper right freezing chamber 150 and a lower freezing chamber 160 . Specifically, the lower end of the freezer vertical beam 180 may be connected to the freezer beam 170, the lower freezer drawer 800 may be located below the freezer beam 170, the left upper freezer drawer 600 may be located above the freezer beam 170 and may be located on the freezer vertical beam. Left side of beam 180 , upper right freezer drawer 700 may be located above freezer cross beam 170 and may be located to the right of freezer vertical beam 180 . Thus, the positions of the upper left freezer drawer 600 , the upper right freezer drawer 700 and the lower freezer drawer 800 on the box body 100 can be more stable.

In addition, as shown in Figure 3, a variable room crossbeam 190 may be provided between the variable room and the freezing room, and a variable room vertical beam 131 may be provided in the variable room to divide the variable room into left variable room 120. And turn right to Greenhouse 130. Specifically, the upper end of the vertical beam 180 of the freezing room can be connected with the beam 190 of the variable room, the lower end of the vertical beam 131 of the variable room can be connected with the horizontal beam 190 of the variable room, and the upper end of the vertical beam 131 of the variable room can be connected with the box body 100 . The left variable temperature drawer 400 can be located above the variable room beam 190 and can be located on the left side of the variable room vertical beam 131 , and the right variable temperature drawer 500 can be located above the variable room beam 190 and can be located on the right side of the variable room vertical beam 131 . Thus, the positions of the left temperature-variable drawer 400 and the right temperature-variable drawer 500 on the box body 100 can be made more stable.

As shown in FIG. 3 , the left temperature-variable drawer 400 , the right temperature-variable drawer 500 , the upper left freezer drawer 600 , the upper right freezer drawer 700 and the lower freezer drawer 800 can be installed in the box body 100 through the slide rail 810 . Thus, the left temperature-variable drawer 400, the right temperature-variable drawer 500, the left upper freezer drawer 600, the right upper freezer drawer 700, and the lower freezer drawer 800 can be respectively mounted on the box body 100 movably back and forth, and the installation is convenient and the cost is low.

Advantageously, as shown in FIG. 3 , a partition 820 can be provided in the lower freezer drawer 800, and the partition 820 can divide the storage space in the lower freezer drawer 800 into at least two sub-storage spaces, which can facilitate the freezing of items Classification is stored in the drawer 800.

Optionally, as shown in FIG. 3 , the refrigerator 1 may further include an ice maker 900 , and the ice maker 900 may be disposed in one of the upper left freezer compartment 140 and the upper right freezer compartment 150 . That is, the ice maker 900 may be installed in the upper left freezer compartment 140 or in the upper right freezer compartment 150 . Thus, one of the upper left freezer compartment 140 and the upper right freezer compartment 150 can be used as an independent ice-making compartment, so that not only can the refrigerator 1 have an ice-making function, but also it is convenient to take ice and save energy.

Fig. 2 shows a refrigerator 1 according to a specific embodiment of the present invention. As shown in FIG. 2 , the refrigerating system may include a first refrigerating system for cooling the refrigerating room 110 and a second refrigerating system for cooling the variable temperature room and the freezing room. In this way, the first refrigerating system and the second refrigerating system can be used to independently cool the refrigerating chamber 110, the freezing chamber and the variable temperature chamber, thereby facilitating the setting of the temperature of each compartment of the refrigerator 1. , so that the storage effect of the refrigerator 1 can be improved.

Specifically, as shown in FIG. 3 , a refrigerating air duct 111 may be provided on the rear side of the refrigerating room 110, and the refrigerating air duct 111 may have a refrigerating air outlet on the upper part and a refrigerating air return outlet on the lower part. The first evaporator 112 may be disposed in the refrigeration air duct 111, and the first evaporator 112 may be located between the refrigeration air outlet and the refrigeration return air outlet. The cold air in the refrigerating room 110 can enter the refrigerating air duct 111 through the refrigerating air return port and exchange heat with the first evaporator 112 to reduce the temperature of the cold air, and the cold air passing through the first evaporator 112 can flow out through the refrigerating air outlet , a refrigeration fan 113 may be provided at the refrigeration air outlet. The refrigerating fan 113 can blow the cold air flowing out from the refrigerating air outlet to the refrigerating room 110 , thereby forming a refrigerating cycle in the refrigerating room 110 . Therefore, the first refrigeration system can cool the refrigerating chamber 110 in an air-cooled manner, so that the refrigerating chamber 110 can have the advantages of fast cooling speed, no frost, good freshness of food, and uniform temperature.

As shown in Figure 2, the rear side of the freezing chamber can be provided with a freezing air duct 161, and the freezing air duct 161 can have a freezing air outlet on the upper part and a freezing air return opening on the lower part. The evaporator 162 can be arranged in the freezing air channel 161, and the second evaporator 162 can be located between the freezing air outlet and the freezing air return port, and the cold air in the freezing chamber can enter the freezing air through the freezing air return port. 161 and conducts heat exchange with the second evaporator 162 to reduce the temperature of the cold air. The cold air passing through the second evaporator 162 can flow out from the freezing air outlet, and a freezing fan 163 can be provided at the freezing air outlet. The freezing fan 163 can blow the cold air flowing out from the freezing air outlet to the freezing chamber, thereby forming a refrigeration cycle in the freezing chamber. The temperature-changing room can be connected to the freezing air channel 161 through the air supply channel of the variable room and the return air channel of the variable room, so that the cold wind after exchanging heat with the second evaporator 162 can enter through the air supply channel of the variable room. The temperature-changing room, and the cold air in the temperature-changing room can be returned to the freezing air duct 161 from the return air duct of the temperature-changing room, that is, the second refrigeration system can cool the freezing room and the freezing room in an air-cooled manner. The temperature-changing room is refrigerated, so that the freezing room and the temperature-changing room have the advantages of fast cooling speed, no frost, good food freshness preservation, and uniform temperature.

Fig. 2 shows a refrigerator 1 according to a specific example of the present invention. As shown in Figure 2, the air supply duct of the variable room can include the air supply channel 121 of the left variable room connected between the left variable room 120 and the freezing air channel 161 and the air supply channel 121 connected between the right variable room 130 and the freezing air channel 161. Between the right variable room air supply duct (not shown in the figure), the cold air in the freezing air channel 161 can enter the left variable room 120 from the left variable room air supply channel 121 and can be blown by the right variable room The air duct enters the right variable greenhouse 130. The return air duct of the variable room can include the left variable room return air channel 122 connected between the left variable room 120 and the freezing air channel 161 and the right variable room connected between the right variable room 130 and the freezing air channel 161 Return air duct (not shown in the figure), the cold wind in the left variable room 120 can be returned to the freezing air duct 161 by the left variable room return air channel 122 and the cold air in the right variable room 130 can be returned by the right variable room. The return air duct of the greenhouse returns to the freezing air duct 161. Thus, the second refrigeration system can independently cool the left variable room 120 and the right variable room 130 , thereby improving the storage effect of the left variable room 120 and the right variable room 130 .

Further, as shown in FIG. 2 , the refrigerator 1 may further include a first damper 123, a second damper (not shown in the figure), a first temperature detector 124, a second temperature detector (not shown in the figure) and controller (not shown). The first damper 123 can be arranged at the air outlet of the air supply duct 121 of the left variable room. The second damper can be arranged at the air outlet of the air supply duct of the right variable room. The first temperature detector 124 can be used to detect the temperature in the left variable room 120 . The second temperature detector can be used to detect the temperature in the right variable room 130 . The controller can be respectively connected with the first damper 123 and the second damper and the first temperature detector 124 and the second temperature detector to control the temperature of the first damper 123 according to the detection signal of the first temperature detector 124. switch and control the switch of the second damper according to the detection signal of the second temperature detector. That is to say, the controller can open or close the first damper 123 according to the temperature in the left-variable greenhouse 120 to control whether the cold air in the freezing air duct 161 can enter the left-variable greenhouse 120 to adjust the temperature in the left-variable greenhouse 120 , and the controller can open and close the second damper according to the temperature in the right variable room 130 to control whether the cold air in the freezing duct 161 can enter the right variable room 130 to adjust the temperature in the right variable room 130 . Therefore, the temperatures in the left-variable greenhouse 120 and the right-variable greenhouse 130 can be adjusted independently, and the structure is simple, the performance is reliable, and the implementation is easy.

In the description of this specification, references to the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific examples," or "some examples" are intended to mean that the implementation A specific feature, structure, material, or characteristic described by an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the invention is defined by the claims and their equivalents.

Claims (8)

1. A refrigerator, characterized in that, comprising: The box body has a refrigerating room, a changing room and a freezing room in the box, and the changing room is divided into a left changing room and a right changing room, and the freezing room is divided into a left upper freezing room, a right upper freezing room and a lower freezing room. The temperature-changing chamber is located above the freezing chamber; a left refrigerated door body and a right refrigerated door body, the left refrigerated door body and the right refrigerated door body are installed on the box body to open and close the refrigerated room; A left temperature-variable drawer and a right temperature-variable drawer, the left temperature-variable drawer can be moved back and forth in the left variable-temperature chamber, and the right temperature-variable drawer can be moved back and forth in the right variable temperature room; An upper left freezer drawer, an upper right freezer drawer and a lower freezer drawer, the upper left freezer drawer can be moved back and forth in the upper left freezer compartment, the upper right freezer drawer can be moved back and forth in the upper right freezer compartment, the lower freezer a drawer is movably provided in the lower freezer compartment; and A refrigeration system, the refrigeration system is arranged on the box body for cooling the refrigerator compartment, the left variable greenhouse, the right variable greenhouse and the freezer compartment respectively, and the refrigeration system includes a The first refrigerating system for cooling the refrigerating room and the second refrigerating system for cooling the temperature-changing room and the freezing room. The refrigerated air outlet and the refrigerated air return located at the lower part, the second evaporator of the second refrigeration system is arranged in the refrigerated air channel and between the refrigerated air outlet and the refrigerated air return. The cooling air duct is connected to the cooling air duct through the air supply duct of the variable room and the return air channel of the variable room, and a cooling fan is arranged at the cooling air outlet. 2. The refrigerator according to claim 1, wherein a freezer beam and a freezer vertical beam are arranged in the freezer compartment to divide the freezer compartment into the upper left freezer compartment, the upper right freezer compartment and the upper right freezer compartment. Describe the freezer. 3. The refrigerator according to claim 1, characterized in that, a variable room crossbeam is arranged between the variable temperature room and the freezing room, and a variable room vertical beam is arranged in the variable temperature room to divide the variable temperature room into The left variable greenhouse and the right variable greenhouse. 4. The refrigerator according to claim 1, wherein a refrigerating air duct is provided on the rear side of the refrigerating chamber, and the refrigerating air duct has a refrigerating air outlet on the upper part and a refrigerating return air outlet on the lower part, the The first evaporator of the first refrigerating system is arranged in the refrigerating air channel and between the refrigerating air outlet and the refrigerating return air outlet, and a refrigerating fan is arranged at the refrigerating air outlet. 5. The refrigerator according to claim 1, wherein the air supply duct of the variable room comprises a left variable room air supply channel connected between the left variable room and the freezing air channel and a The air supply duct of the right variable room between the right variable room and the freezing air channel, the return air channel of the variable room includes the left variable room connected between the left variable room and the freezing air channel A return air duct and a right variable room return air duct connected between the right variable room and the freezing air channel. 6. The refrigerator according to claim 5, further comprising: The first damper located at the air outlet of the air supply duct of the left variable room; The second damper located at the air outlet of the air supply duct of the right variable room; a first temperature detector, the first temperature detector is used to detect the temperature in the left variable room; a second temperature detector for detecting the temperature inside the right-variable chamber; and a controller, the controller is respectively connected with the first and second air doors and the first and second temperature detectors to control the switch of the first air door according to the detection signal of the first temperature detector; The opening and closing of the second damper is controlled according to the detection signal of the second temperature detector. 7. The refrigerator according to any one of claims 1-6, wherein the left temperature-variable drawer, the right temperature-variable drawer, the left upper freezer drawer, the right upper freezer drawer and the lower freezer drawer Installed in the box through slide rails. 8. The refrigerator according to any one of claims 1-6, further comprising an ice maker disposed in one of the upper left freezer compartment and the upper right freezer compartment.