CN107192200A - Multi-door refrigerator - Google Patents

Abstract

The present invention provides a multi-door refrigerator, which comprises: a box body, the upper part and the lower part of which respectively define a storage space, wherein the lower part of the box body is formed with a first storage compartment separated by a longitudinally arranged insulation partition and the second storage compartment; the first refrigerating device, which controls the first storage compartment or simultaneously provides cold energy to the first storage compartment and the second storage compartment; and the semiconductor refrigeration module, used providing auxiliary cooling capacity to the second storage compartment, and configured to start when the temperature of the second storage compartment is within a set temperature range and the first refrigeration device stops providing cooling capacity to the second storage compartment, The temperature of the second storage compartment can be kept stable by utilizing the cooling capacity of the cold end. The multi-door refrigerator of the present invention can perform refrigeration control according to the refrigeration requirement of the storage room, avoiding the frequent start and stop of the compressor.

Description

multi door refrigerator

technical field

The invention relates to household refrigeration equipment, in particular to a multi-door refrigerator.

Background technique

There are many types of refrigerators. At present, refrigerators are roughly divided into the following categories according to their appearance: single-door refrigerators, two-door refrigerators (that is, two doors are generally opened up and down), three-door refrigerators (that is, three doors are divided into upper, middle, and lower doors from top to bottom), and four-door refrigerators (also It is called a cross-door refrigerator, the upper and lower parts respectively form a side-by-side door structure), double-door (also known as a side-by-side door), and other multi-door refrigerators (the above-mentioned multi-door structures are matched with storage drawers).

According to the usage habits of refrigerators in China, four-door refrigerators (cross-doors) are more suitable for Chinese families, because domestic food is more complicated, and there are more requirements for food storage, including taste, size, storage time, temperature control, etc. Four-door refrigerators can better solve the above problems. Four storage compartments are formed on the upper, lower, left, and left sides of the refrigerator. The appearance is stylish and beautiful. It is more environmentally friendly and energy-saving during use, and a single door can also make the cooling air dissipate more slowly.

However, due to the large number of storage compartments in the four-door refrigerator, the requirements for the refrigeration system are high, and the control is complicated, and the compressor may start and stop frequently.

Contents of the invention

In view of the above problems, an object of the present invention is to provide a multi-door refrigerator which overcomes the above problems or at least partly solves the above problems.

A further object of the present invention is to simplify the refrigeration control process of a multi-door refrigerator.

Another further object of the present invention is to improve the experience of using a multi-door refrigerator.

In particular, the present invention provides a multi-door refrigerator, which includes: a box body, the upper part and the lower part of which respectively define a storage space, wherein the lower part of the box body is formed with a first storage space separated by a longitudinally arranged insulation partition. the storage compartment and the second storage compartment; the first refrigeration device, which provides cold energy to the first storage compartment or simultaneously to the first storage compartment and the second storage compartment; and the semiconductor refrigeration module The group is used to provide auxiliary cooling capacity to the second storage compartment, and is configured so that when the temperature of the second storage compartment is within the set temperature range and the first refrigeration device stops providing cooling capacity to the second storage compartment start, to maintain the temperature stability of the second storage compartment by utilizing the cooling capacity of the cold end.

Optionally, a third storage compartment is formed on the upper part of the box body, and the refrigerator further includes: a second refrigeration device, disposed on the back of the third storage compartment, as a cold source for the third storage compartment.

Optionally, the third storage compartment is divided into a first storage area and a second storage area, wherein the first storage area is located above the first storage compartment, and the second storage area is located above the second storage area. above the storage room.

Optionally, the bottom of the second storage area forms an accommodating cavity for accommodating the peltier refrigeration module, and the tops of the first storage compartment and the second storage compartment are flush.

Optionally, the above-mentioned multi-door refrigerator further includes: a first pair of doors for closing the first storage compartment and the second storage compartment; a second pair of doors for closing the third storage compartment, Thus, the multi-door refrigerator forms a cross door structure.

Optionally, the first refrigerating device includes: a first evaporator, a first throttling device connected to the first evaporator, and a first fan for generating an air flow for heat exchange with the first evaporator; the second refrigerating device It includes: a second evaporator, a second throttling device connected to the second evaporator, and a second fan used to generate an air flow for heat exchange with the second evaporator; and the refrigerator also includes: a refrigerant distribution device, which is connected to the second evaporator The first throttling device and the second throttling device are respectively connected, and are configured to control the temperature of the first storage compartment, the second storage compartment, and the third storage compartment to the first evaporator and the second The evaporator supplies refrigerant.

Optionally, the first throttling device is an electronic expansion valve, and is configured to be set at a first opening degree so that the supply to the The refrigerant of the first evaporator passes through, and when the first evaporator only refrigerates the first storage compartment, the second opening is set to allow the refrigerant supplied to the first evaporator to pass, and the first opening is larger than the second opening. opening degree, and the multi-door refrigerator further includes: an inverter compressor connected to the refrigerant distribution device and configured to use the first setting when the first evaporator simultaneously cools the first storage compartment and the second storage compartment frequency operation, and when the first evaporator only cools the first storage compartment, it operates at the second set frequency, the first opening degree is greater than the second opening degree, and the first setting frequency is greater than the second setting frequency.

Optionally, the first evaporator is arranged across the back of the first storage compartment and the second storage compartment; The air duct of the storage compartment is used to cool the first storage compartment and the second storage compartment by using the airflow generated by the first fan, and at least the air duct leading to the second storage compartment is provided with a controllable damper , the controllable damper is configured to allow the second storage compartment to receive the cooling capacity of the first evaporator in a controlled manner.

Optionally, a cooling air duct is formed on the back of the first storage compartment, and an air supply port and an air return opening connecting the second storage compartment and the cooling air duct are opened on the insulation partition; the first evaporator and the first fan are arranged In the cooling air duct; and the air supply port and the air return port are respectively provided with controllable air doors, and the controllable air doors are configured to be opened in a controlled manner, so that the second storage compartment can receive the cooling capacity of the first refrigeration device in a controlled manner.

Optionally, the first storage compartment is used as a freezer compartment, the second storage compartment is used as a variable temperature compartment, and the third storage compartment is used as a refrigerated compartment.

In the multi-door refrigerator of the present invention, two storage compartments are separated by a thermal insulation partition at the lower part of the refrigerator, one of which is refrigerated by a compression refrigeration cycle alone, and the other can be refrigerated by a compression refrigeration cycle or a semiconductor refrigeration module. Therefore, refrigeration control can be performed according to the refrigeration requirements of the storage compartment, and frequent start and stop of the compressor can be avoided.

Furthermore, the multi-door refrigerator of the present invention can be a cross-by-side refrigerator, the upper two storage compartments are used as refrigerated compartments, and the lower two storage compartments are respectively used as freezer compartments or variable temperature compartments, wherein the variable temperature compartments are used comprehensively Compressed refrigerant and semiconductor refrigeration are used for refrigeration, which meets the needs of users.

Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a schematic appearance diagram of a multi-door refrigerator according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of a storage compartment layout of a multi-door refrigerator according to an embodiment of the present invention;

Fig. 3 is a functional block diagram of a multi-door refrigerator according to an embodiment of the present invention;

Fig. 4 is a block diagram of a refrigeration system of a multi-door refrigerator according to an embodiment of the present invention;

Fig. 5 is a schematic diagram of a refrigerant cycle of a multi-door refrigerator according to an embodiment of the present invention;

Fig. 6 is a schematic diagram of the internal structure of a multi-door refrigerator according to an embodiment of the present invention;

7 is a schematic cross-sectional view of a first storage compartment and a second storage compartment in a multi-door refrigerator according to an embodiment of the present invention;

Fig. 8 is a schematic diagram of the internal structure of a multi-door refrigerator according to another embodiment of the present invention;

9 is a schematic cross-sectional view of a first storage compartment and a second storage compartment in a multi-door refrigerator according to another embodiment of the present invention; and

Fig. 10 is a schematic diagram of a control method of a multi-door refrigerator according to an embodiment of the present invention.

detailed description

Fig. 1 is a schematic appearance diagram of a multi-door refrigerator 10 according to an embodiment of the present invention, and Fig. 2 is a schematic diagram of a storage compartment layout of a multi-door refrigerator 10 according to an embodiment of the present invention, the multi-door refrigerator 10 of this embodiment It can be a cross-by-side refrigerator, and its box body 100 forms an upper part and a lower part to define a storage space respectively, wherein the lower part of the box body 100 is formed with a first storage compartment 110 and a second storage compartment separated by a vertically arranged insulation partition 150. Two storage compartments 120 . The first storage compartment 110 and the second storage compartment 120 are arranged left and right, and are generally used as freezer compartments, wherein the second storage compartment 120 can also be used as a variable temperature compartment. The upper third storage compartment 130 of the box body 100, the third storage compartment 130 is divided into a first storage area 131 and a second storage area 132, wherein the first storage area 131 is located in the first storage room Above the compartment 110 , the second storage area 132 is located above the second storage compartment 120 .

The above-mentioned first storage area 131 and second storage area 132 may be connected to facilitate the placement of larger items, that is, only the center vertical beams are connected internally. In other optional embodiments, the first storage area 131 and the second storage area 132 can also be independent, and the specific layout structure can be configured according to specific needs. The third storage compartment 130 can generally be As a cold room.

The first pair of doors can be used to close the first storage compartment 110 and the second storage compartment 120 . The second side-by-side door body can be used to close the third storage compartment 130, so that the multi-door refrigerator 10 forms a cross-side-by-side door structure.

In this embodiment, the function of the specific storage compartment can be configured according to the pre-demand. In some embodiments, the storage temperature of the refrigerated compartment can be 2-9°C, or 4-7°C; The storage temperature of the compartment may be -22 to -14°C, or may be -20 to -16°C. The storage temperature of the temperature-changing compartment can be adjusted according to demand, so as to store suitable food, or as a fresh-keeping storage room.

The bottom of the second storage area 132 forms an accommodating cavity for accommodating the peltier cooling module 240 , and the tops of the first storage compartment 110 and the second storage compartment 120 are flush. Using this structure, occupying part of the space of the second storage area 132 to arrange the semiconductor refrigeration module 240 has little impact on the appearance of the refrigerator, and because the third storage compartment 130 itself has a large volume, it has little impact on the normal use of the refrigerator by the user. smaller. Compared with arranging the semiconductor refrigeration module 240 in the side wall of the storage compartment, it can ensure that the internal space of the storage compartment is more regular, and it is convenient for the user to place items.

The first storage area 131 and the second storage area 132 can arrange partitions, drawers, etc. according to the needs. Small drawers can realize the setting of the accommodating cavity. Such a layout structure has the least impact on the normal use of the refrigerator.

Fig. 3 is a functional block diagram of a multi-door refrigerator 10 according to an embodiment of the present invention, the multi-door refrigerator 10 may include: the refrigeration system of the multi-door refrigerator 10 of this embodiment may include: a first refrigeration device 210 and a semiconductor refrigeration module 240. The first refrigeration device 210 provides cold energy to the first storage compartment 110 or to the first storage compartment 110 and the second storage compartment 120 in a controlled manner. The peltier cooling module 240 is used to provide auxiliary cooling capacity to the second storage compartment 120 and is configured such that when the temperature of the second storage compartment 120 is within a set temperature range and the first refrigeration device 210 stops supplying the second storage compartment 120 The second storage compartment 230 is activated when providing cooling capacity, so as to maintain a stable temperature of the second storage compartment 120 by utilizing the cooling capacity at the cold end thereof.

The semiconductor cooling module 240 is used to provide auxiliary cooling capacity to the second storage compartment 120. Based on the Peltier principle, the semiconductor cooling chip is used as a cold source, and the temperature of the cold end of the semiconductor cooling chip is transferred to the second storage compartment. 120 in.

Fig. 4 is a block diagram of a refrigeration system of a multi-door refrigerator 10 according to an embodiment of the present invention, and Fig. 5 is a schematic diagram of a refrigerant cycle of the multi-door refrigerator according to an embodiment of the present invention.

The first refrigeration device 210 includes: a first evaporator 211 , a first throttling device 212 connected to the first evaporator 211 , a first fan 213 , and a controllable damper 223 .

The second refrigerating device 220 includes: a second evaporator 231, a second throttling device 232 connected to the second evaporator 231, and a second fan 233 for generating an air flow for heat exchange with the second evaporator 231;

The refrigerant distribution device 250 is respectively connected to the first throttling device 212 and the second throttling device 232 , and is configured so that the temperature of the first storage compartment 110 , the second storage compartment 120 , and the third storage compartment 130 The refrigerant is supplied to the first evaporator 110 and the second evaporator 231 in a controlled manner.

The first evaporator 211 serves as the main cold source of the first storage compartment 110 and the second storage compartment 120 . The first blower 213 can generate an air flow for heat exchange with the first evaporator 211 , and is used to send the cold energy of the first evaporator 211 into the first storage compartment 110 and the second storage compartment 120 .

The second refrigeration device 220 is used to provide cold energy to the third storage compartment 130 . Wherein, the second evaporator 231 arranged at the back of the third storage compartment 130 is used as the cold source of the third storage compartment 130, the second throttling device 232 is connected with the second evaporator 231, and the second fan 233 can generate The airflow that exchanges heat with the third evaporator 231 is sent to the third storage compartment 130 . The refrigerant distributing device 250 may also be connected to the second throttling device 232 and configured to distribute the refrigerant to the second evaporator 231 in a controlled manner according to the temperature of the third storage compartment 130 .

The above-mentioned first refrigeration device 210, second refrigeration device 220, and refrigerant distribution device 250 use a compression refrigeration cycle system. In the compression refrigeration cycle system, the compressor 260 increases the pressure and temperature of the refrigerant vapor through compression, creating conditions for transferring the heat of the refrigerant vapor to the external environment medium. That is, the low-temperature and low-pressure refrigerant vapor is compressed to a high-temperature and high-pressure state. The condenser 270 is used as a heat exchange device to take away the heat from the high-temperature and high-pressure refrigerant vapor from the compressor 260 by using the ambient cooling medium, so that the high-temperature and high-pressure refrigerant vapor is cooled and condensed into a high-pressure and normal-temperature refrigerant liquid. The throttling element (including the first throttling device 212 and the second throttling device 232 ) reduces the pressure of the refrigerant liquid, thereby reducing the temperature of the refrigerant liquid. The evaporator (including the first evaporator 211 and the second evaporator 231 ) is also a heat exchange device. The throttling low-temperature and low-pressure refrigerant liquid evaporates (boils) into steam, absorbs the heat of the cooled substance, and lowers the temperature of the substance to achieve the purpose of freezing and refrigerating food.

The controllable damper 223 is configured to allow the second storage compartment 120 to receive the cooling capacity of the first evaporator 211 in a controlled manner, and it can be started and stopped according to the temperature of the second storage compartment 120 . When the controllable damper 223 is closed, the second storage compartment 120 does not receive the cooling capacity of the first evaporator 211, and when the controllable damper 223 is opened, the second storage compartment 120 receives the cooling capacity of the first evaporator 211. quantity.

The semiconductor refrigeration module 240 is used to provide auxiliary cooling capacity to the second storage compartment 120, and the semiconductor refrigeration module 240 can be configured such that the temperature of the second storage compartment 120 is within a set temperature range and the controllable damper 223 is closed. The cooling capacity is provided to the second storage compartment 120 at the same time, so as to maintain the temperature stability of the second storage compartment 120 by using the cooling capacity at the cold end. The semiconductor cooling module 240 is based on the Peltier principle, uses the semiconductor cooling chip as a cold source, and transmits the temperature of the cold end of the semiconductor cooling chip to the storage compartment.

One way of distributing refrigerant by the refrigerant distribution device 250 is: when the temperatures of the first storage compartment 110 and the second storage compartment 120 both exceed their respective start-up temperatures, start the first fan 213 and the controllable damper 223 at the same time , so that the cooling capacity of the first evaporator 211 is sent into the first storage compartment 110 and the second storage compartment 120 at the same time, and after the temperature of the second storage compartment 120 reaches the set temperature range, it can be closed The air door 223 is controlled, so that the first evaporator 211 stops supplying cold energy to the second storage compartment 120 .

In this embodiment, the first throttling device 212 may use an electronic expansion valve (with a controllable opening), and the second throttling device 232 may use a capillary tube. The first throttling device 212 may be configured to be set to the first opening when the first evaporator 211 is cooling the first storage compartment 110 and the second storage compartment 120 at the same time (the controllable damper 223 is in an open state). The refrigerant supplied to the first evaporator 211 passes therethrough. And when the first evaporator 211 only refrigerates the first storage compartment 110 (the first fan 213 starts and the controllable damper 223 closes), it is set to the second opening to allow the refrigerant supplied to the first evaporator to pass through. , the first opening degree is greater than the second opening degree. Therefore, by adjusting the first throttling device 212, the first evaporator 211 can output a corresponding cooling capacity to meet different cooling requirements.

Correspondingly, during the process of adjusting the first throttling device 212, the compressor 260 can also be adjusted accordingly. The compressor 260 may use an inverter compressor, and is configured to operate at the first speed when the first evaporator 211 cools the first storage compartment 110 and the second storage compartment 120 at the same time (the controllable damper 223 is open). Running at the set frequency, when the first evaporator 211 only refrigerates the first storage compartment 110 (the first fan 213 starts, and the controllable damper 223 closes), it runs at the second set frequency, and the first set frequency higher than the second set frequency. By adjusting the compressor 260 and the first throttling device 212 , the corresponding cooling capacity can be output through the first evaporator 211 to meet different refrigeration requirements.

Correspondingly, during the process of adjusting the first throttling device 212, the compressor 260 can also be adjusted accordingly. The compressor 260 may use an inverter compressor, and is configured to operate at the first speed when the first evaporator 211 cools the first storage compartment 110 and the second storage compartment 120 at the same time (the controllable damper 223 is open). Running at the set frequency, when the first evaporator 211 only refrigerates the first storage compartment 110 (the first fan 213 starts, and the controllable damper 223 closes), it runs at the second set frequency, and the first set frequency higher than the second set frequency. By adjusting the compressor 260 and the first throttling device 212 , the corresponding cooling capacity can be output through the first evaporator 211 to meet different refrigeration requirements.

Therefore, in the multi-door refrigerator 10 of this embodiment, when the first evaporator 211 cools the first storage compartment 110 and the second storage compartment 120 at the same time, the first throttling device 212 is set to the first opening. The refrigerant supplied to the first evaporator 211 passes through at a certain degree, and the compressor 260 operates at a first set frequency. When the first evaporator 211 only cools the first storage compartment 110, the first throttling device 212 is set to the second opening degree to allow the refrigerant supplied to the first evaporator 211 to pass through, and the compressor 260 operates at the second setting. Constant frequency operation, the first opening degree is greater than the second opening degree, and the first set frequency is greater than the second set frequency.

There may be various arrangements of the first refrigeration device 210 and the controllable damper 223 . Fig. 6 is a schematic diagram of the internal structure of a multi-door refrigerator 10 according to an embodiment of the present invention, and Fig. 7 is a view of the first storage compartment 110 and the second storage compartment 120 in the multi-door refrigerator 10 according to an embodiment of the present invention A schematic cross-sectional view, in this embodiment, the first evaporator 211 is arranged across the back of the first storage compartment 110 and the second storage compartment 120, and the first fan 213 can be arranged behind the insulation partition 150 department. The back of the casing is formed with an air duct 214 leading to the first storage compartment 110 and an air duct 224 leading to the second storage compartment 120. The air duct 214 can send the airflow from the first fan 213 into the second storage compartment. A storage compartment 110 is guided to the first evaporator 211 after heat exchange, and the air duct 224 is controllable to send the airflow from the first fan 213 into the second storage compartment 120, which is guided to the second storage compartment 120 after heat exchange. The first evaporator 211. The above-mentioned air duct 214 and air duct 224 may both include an air outlet air duct and an air return air duct. Since the air circulation process of air cooling and direct cooling is well known to those skilled in the art, details will not be repeated here.

The air duct 224 leading to the second storage compartment 120 is provided with a controllable damper 223 . In some other embodiments, a dedicated fan may also be provided for the air duct 224 to cooperate with the controllable damper 223 . The controllable damper 223 can be opened and closed in a controlled manner, so that the air passage 224 can be communicated and closed accordingly, so that the second storage compartment 120 can receive or not receive the cooling capacity of the first evaporator 211 in a controlled manner.

Fig. 8 is a schematic diagram of the internal structure of a multi-door refrigerator 10 according to another embodiment of the present invention, and Fig. 9 is a first storage compartment 110 and a second storage compartment in the multi-door refrigerator 10 according to another embodiment of the present invention 120 is a schematic cross-sectional view. In this embodiment, the back of the first storage compartment 110 forms a cooling air duct 216, the first refrigeration device 210 is disposed in the cooling air duct 216, the back of the first storage compartment 110 forms the cooling air duct 216, and the second A cooling device 210 is disposed in the cooling air duct 216 . The second storage compartment 120 is not provided with a refrigeration device at the back, so that the depth of the second storage compartment 120 is larger, thereby expanding the volume of the second storage compartment 120 . The first evaporator 211 is disposed in the cooling air duct 216 . The cooling air duct 216 may include an air outlet air duct and an air return air duct. Since the air circulation process of air cooling and direct cooling is well known to those skilled in the art, details will not be described here.

The insulation partition 150 is provided with an air supply port and an air return port connecting the second storage compartment 120 and the cooling air duct 216, and the air supply port and the air return port are provided with a controllable damper 223, and the controllable damper 223 is opened and closed in a controlled manner. The air supply port and the air return port on the insulation partition 150 can be communicated and closed accordingly, so that the second storage compartment 120 can receive or not receive the cooling capacity of the first evaporator 211 in a controlled manner. Utilizing the above-mentioned structure, the second storage compartment 120 obtains cooling capacity through the air supply port and the air return port on the thermal insulation partition 150. Generally speaking, the air supply port can be arranged on the upper part of the thermal insulation partition 150, and the air return port is arranged on the thermal insulation partition. The lower part of the plate 150, so as to realize the circulation of air flow.

The following describes the working process of the multi-door refrigerator 10 in conjunction with the control method of the multi-door refrigerator 10 in this embodiment. FIG. 10 is a schematic diagram of the control method of the multi-door refrigerator 10 according to an embodiment of the present invention. The control method of the multi-door refrigerator 10 includes:

Step S1002, the refrigerator 10 is powered on and initialized, such as performing self-check on the state of the refrigerator 10;

Step S1004, select an operation mode, the operation mode includes setting parameters for the target temperature of each storage compartment, etc.;

Step S1006, determine whether to use the semiconductor refrigeration module 240, for example, automatically determine whether to use the semiconductor refrigeration module 240 according to the user's setting of the storage compartment, for example, the user divides the first storage compartment 110 and the second storage compartment When 120 is set as a freezer compartment with the same target temperature, it can be determined that the peltier cooling module 240 does not need to be used. If the second storage compartment 120 is set as a variable temperature compartment different from the first storage compartment 110 , it can be determined that the peltier cooling module 240 needs to be used.

Step S1008, without using the semiconductor refrigeration module 240, the first storage compartment 110 and the second storage compartment 120 are refrigerated in the following manner: the first throttling device 212 is set to a larger opening, The first fan 213 and the compressor 260 operate at a high rotational speed.

Step S1010, in the case of using the semiconductor refrigeration module 240, determine whether the temperature of the second storage compartment 120 is higher than the start-up temperature, the start-up temperature can be set according to the set temperature of the second storage compartment 120, for example, set Set to be higher than the set temperature by a set value (for example, 3 degrees);

Step S1012, when the temperature of the second storage compartment 120 is higher than the start-up temperature, the first storage compartment 110 and the second storage compartment 120 are refrigerated in the following manner: the first fan 213 is started, and the controllable The damper 223 is opened; the opening degree of the first throttling device 213 is set to be larger, and the first fan 213 and the compressor 260 run at a high speed;

Step S1014, judging whether the temperature of the second storage compartment 120 has dropped to a set temperature range, the set temperature range can also be set according to the set temperature of the second storage compartment 120, for example, set to be higher than the set temperature Temperature-set value (for example, 3 degrees);

Step S1016, after the temperature of the second storage compartment 120 drops to the set temperature range, the first storage compartment 110 and the second storage compartment 120 are refrigerated in the following manner: the first fan 213 starts, the second The fan 223 is turned off; the refrigerant distribution device 250 only supplies refrigerant to the first evaporator 211 at the same time; the semiconductor cooling module 240 is turned on; the compressor 260 runs at a lower frequency, and the first fan 213 runs at a lower speed.

Step S1018, the first storage compartment 110 and the second storage compartment 120 are operated in cooling respectively until either the first storage compartment 110 or the second storage compartment 120 is opened or the second storage compartment 120 The temperature is again higher than the boot temperature (or 5 degrees higher than the set temperature).

In the multi-door refrigerator 10 of this embodiment, two storage compartments are separated by a thermal insulation partition 150 at the lower part of the refrigerator, one of which uses a compression refrigeration cycle for refrigeration alone, and the other can choose a compression refrigeration cycle or a semiconductor refrigeration module Refrigerate. Therefore, refrigeration control can be performed according to the refrigeration requirements of the storage compartment, and frequent start and stop of the compressor 260 can be avoided.

The multi-door refrigerator 10 of the present embodiment can be a cross-by-side refrigerator, the upper two storage compartments are used as refrigerated compartments, and the lower two storage compartments are respectively used as freezers or variable temperature chambers, wherein the variable temperature chambers comprehensively use compressed refrigerant Refrigeration with the semiconductor refrigeration method meets the needs of users.

So far, those skilled in the art should appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, the disclosed embodiments of the present invention can still be used. Many other variations or modifications consistent with the principles of the invention are directly identified or derived from the content. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. A multi-door refrigerator, comprising: A box body, the upper part and the lower part of which respectively define a storage space, wherein the lower part of the box body is formed with a first storage compartment and a second storage compartment separated by a longitudinally arranged insulation partition; a first refrigeration device, controlling to provide cooling capacity to the first storage compartment or to the first storage compartment and the second storage compartment at the same time; and The semiconductor refrigeration module is used to provide auxiliary cooling capacity to the second storage compartment, and is configured so that when the temperature of the second storage compartment is within a set temperature range and the first refrigeration device stops supplying The second storage compartment is activated when the cooling capacity is provided, so as to maintain a stable temperature of the second storage compartment by using the cooling capacity at the cold end. 2. The multi-door refrigerator according to claim 1, wherein The upper part of the box is also formed with a third storage compartment, and the refrigerator also includes: The second refrigeration device is arranged at the back of the third storage compartment and serves as a cold source for the third storage compartment. 3. The multi-door refrigerator according to claim 2, wherein The third storage compartment is divided into a first storage area and a second storage area, wherein the first storage area is located above the first storage compartment, and the second storage area Located above the second storage compartment. 4. The multi-door refrigerator according to claim 3, wherein The bottom of the second storage area forms an accommodating chamber for accommodating the peltier refrigeration module, and the tops of the first storage compartment and the second storage compartment are flush. 5. The multi-door refrigerator according to claim 3, further comprising: a first pair of doors for closing the first storage compartment and the second storage compartment; The second side-by-side door body is used to close the third storage compartment, so that the multi-door refrigerator forms a cross-side-by-side door structure. 6. The multi-door refrigerator of claim 4, wherein The first refrigerating device includes: a first evaporator, a first throttling device connected to the first evaporator, and a first fan for generating an air flow for heat exchange with the first evaporator; The second refrigerating device includes: a second evaporator, a second throttling device connected to the second evaporator, and a second fan for generating an air flow for heat exchange with the second evaporator; and The refrigerator further includes: a refrigerant distribution device, which is respectively connected to the first throttling device and the second throttling device, and is configured to The temperature of the third storage compartment and the third storage compartment supplies refrigerant to the first evaporator and the second evaporator. 7. The multi-door refrigerator according to claim 6, wherein The first throttling device is an electronic expansion valve, and is configured to be set to a first opening when the first evaporator cools the first storage compartment and the second storage compartment at the same time. The opening degree allows the refrigerant supplied to the first evaporator to pass through, and when the first evaporator only refrigerates the first storage compartment, it is set to a second opening degree to allow the refrigerant supplied to the first evaporator The refrigerant of the refrigerator passes through, the first opening degree is greater than the second opening degree, and the multi-door refrigerator further includes: an inverter compressor connected to the refrigerant distribution device and configured to operate at a first set frequency when the first evaporator simultaneously cools the first storage compartment and the second storage compartment , and when the first evaporator only cools the first storage compartment, it operates at a second set frequency, the first opening degree is greater than the second opening degree, and the first set frequency greater than the second set frequency. 8. The multi-door refrigerator according to claim 7, wherein The first evaporator is arranged across the back of the first storage compartment and the second storage compartment; The back of the box body is formed with air ducts leading to the first storage compartment and the second storage compartment respectively, so as to use the airflow generated by the first fan to cool the first storage compartment. The compartment and the second storage compartment are refrigerated, and at least the air duct leading to the second storage compartment is provided with a controllable damper, and the controllable damper is configured to make the second storage compartment Controlled acceptance of the cooling capacity of the first evaporator. 9. The multi-door refrigerator of claim 7, wherein A cooling air duct is formed on the back of the first storage compartment, and an air supply port and an air return port connecting the second storage compartment and the cooling air duct are opened on the heat preservation partition; The first evaporator and the first fan are arranged in the cooling air passage; and The air supply port and the air return port are respectively provided with controllable air doors, and the controllable air doors are configured to be opened in a controlled manner, so that the second storage compartment can receive the air from the first refrigeration device in a controlled manner. Cooling capacity. 10. The multi-door refrigerator of claim 3, wherein The first storage compartment is used as a freezer compartment, the second storage compartment is used as a variable temperature compartment, and the third storage compartment is used as a refrigerated compartment.