Refrigerator having fruit and vegetable freeze-drying function

Abstract

The application provides a refrigerator with fruit and vegetable freeze-drying function, comprising: a cabinet, a storage chamber is arranged in the cabinet; a door body is rotatably connected to the outside of the storage chamber; a vacuum device, one end of the vacuum device is communicated with the storage chamber, and the other end is communicated with the outside of the cabinet; a temperature adjusting device, the temperature adjusting device is arranged in the storage chamber; a freeze-drying function button, the freeze-drying function button is arranged on the side of the door body away from the storage chamber; a fresh-keeping function button, the fresh-keeping function button is arranged on the side of the door body away from the storage chamber; when the freeze-drying function button is opened, the temperature and the vacuum degree in the storage chamber reach the set freeze-drying temperature and the set freeze-drying vacuum degree, so that the food in the storage chamber is freeze-dried; when the fresh-keeping function button is opened, the temperature and the vacuum degree in the storage chamber reach the set fresh-keeping temperature and the set fresh-keeping vacuum degree, so that the food in the storage chamber is vacuum fresh-kept, thereby solving the problem that there is no product with fruit and vegetable freeze-drying function in the current refrigerator, and the purpose of long-term preservation of fruits and vegetables cannot be achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigeration equipment, in particular to a refrigerator with fruit and vegetable freeze-drying function. BACKGROUND

[0002] Fruits and vegetables are rich in nutrients such as vitamins and dietary fiber, which can provide various nutrients to the human body. However, fresh fruits and vegetables often have a short shelf life and are prone to rot and deterioration, resulting in a large amount of waste. Freeze-dried fruits and vegetables can maximize the retention of nutrients such as vitamins and minerals by rapidly freezing and removing water under low temperature and vacuum conditions, making the nutritional value of freeze-dried fruits and vegetables comparable to that of fresh fruits and vegetables.

[0003] Traditional refrigerators mainly delay food spoilage through low temperature, but for fruit and vegetable food, long-term refrigeration can lead to loss of nutrients and decrease in taste. Fruit and vegetable freeze-drying is a low-temperature freezing technology that removes water from fresh fruits and vegetables from solid to gas, thereby removing water and achieving long-term preservation of fruits and vegetables while effectively retaining the nutrients and taste of fruits and vegetables.

[0004] There are some fruit and vegetable drying equipment on the market at present, but these equipment usually occupies a large space and is complex to operate, which is not suitable for daily use at home. There is no product with fruit and vegetable freeze-drying function in the current refrigerator industry. SUMMARY

[0005] The present application provides a refrigerator with fruit and vegetable freeze-drying function to solve the technical problem that there is no product with fruit and vegetable freeze-drying function in the existing refrigerator, which cannot achieve the purpose of long-term preservation of fruits and vegetables.

[0006] The present application provides a refrigerator with fruit and vegetable freeze-drying function, comprising:

[0007] a cabinet, a storage chamber is arranged in the cabinet, a door body is rotatably connected to the outside of the storage chamber;

[0008] a vacuum device, the vacuum device is arranged in the cabinet, one end of the vacuum device is communicated with the storage chamber, and the other end is communicated with the outside of the cabinet;

[0009] a temperature adjusting device, the temperature adjusting device is arranged in the storage chamber;

[0010] a freeze-drying function button, the freeze-drying function button is arranged on the side of the door body away from the storage chamber;

[0011] a fresh-keeping function button, the fresh-keeping function button is arranged on the side of the door body away from the storage chamber;

[0012] When the freeze-drying function button is opened, the vacuum device and the temperature adjusting device are started, the temperature and the vacuum degree in the storage chamber reach the set freeze-drying temperature and the set freeze-drying vacuum degree, so that the food in the storage chamber is freeze-dried.

[0013] When the fresh-keeping function button is opened, the vacuum device and the temperature adjusting device are started, the temperature and the vacuum degree in the storage chamber reach the set fresh-keeping temperature and the set fresh-keeping vacuum degree, so that the food in the storage chamber is vacuum fresh-kept.

[0014] In some embodiments, the vacuum device comprises:

[0015] An air inlet pipe, one end of the air inlet pipe being communicated with the storage chamber;

[0016] A solenoid valve, the solenoid valve being connected to the other end of the air inlet pipe;

[0017] A vacuum pump, the vacuum pump being connected to the solenoid valve;

[0018] An air outlet pipe, one end of the air outlet pipe being connected to the vacuum pump and the other end of the air outlet pipe being communicated with the outside of the cabinet.

[0019] In some embodiments, the vacuum device further comprises:

[0020] A silencer, the silencer being arranged at the end of the air outlet pipe close to the outside of the cabinet.

[0021] In some embodiments, the temperature adjusting device comprises:

[0022] A heating pipe, the heating pipe being arranged at the bottom of the storage chamber;

[0023] An evaporator, the evaporator being arranged on the inner wall of the storage chamber.

[0024] In some embodiments, the refrigerator with the fruit and vegetable freeze-drying function further comprises:

[0025] A pressure relief valve knob, the pressure relief valve knob being arranged on the side of the door body away from the storage chamber, the pressure relief valve knob being used to keep the vacuum degree in the storage chamber consistent with the vacuum degree outside the cabinet.

[0026] In some embodiments, the refrigerator with the fruit and vegetable freeze-drying function further comprises:

[0027] A temperature sensor, the temperature sensor being arranged at the top of the storage chamber, the temperature sensor being used to obtain the temperature in the storage chamber;

[0028] A vacuum degree sensor is arranged on the top of the storage chamber, and is used to obtain the vacuum degree in the storage chamber.

[0029] In some embodiments, the refrigerator with the fruit and vegetable freeze-drying function further comprises:

[0030] A control panel is arranged on the top of the cabinet, and is electrically connected with the vacuum device, the temperature adjusting device, the temperature sensor and the vacuum degree sensor.

[0031] When the freeze-drying function button is turned on, the temperature adjusting device is started to make the temperature in the storage chamber be in a first temperature range for a first time period; after the first time period, the vacuum device is started to make the temperature in the storage chamber be in a second temperature range and the vacuum degree be in a first pressure range for a second time period; after the second time period, the temperature in the storage chamber is in a third temperature range and the vacuum degree is in a second pressure range, so that the food in the storage chamber is freeze-dried.

[0032] In some embodiments, the control panel is further configured to:

[0033] When the fresh-keeping function button is turned on, the temperature adjusting device and the vacuum device are started to make the temperature in the storage chamber be in a fourth temperature range and the vacuum degree be in a third pressure range, so that the food in the storage chamber is vacuum fresh-kept.

[0034] In some embodiments, the refrigerator with the fruit and vegetable freeze-drying function further comprises:

[0035] A display panel is arranged on the side of the door body away from the storage chamber, and is electrically connected with the temperature sensor and the vacuum degree sensor.

[0036] In some embodiments, the refrigerator with the fruit and vegetable freeze-drying function further comprises:

[0037] A guide rail is oppositely arranged in the storage chamber along the width direction of the storage chamber.

[0038] A plurality of shelves are slidingly connected with the guide rail.

[0039] The application provides a refrigerator with fruit and vegetable freeze-drying function, comprising: a cabinet, a storage chamber is arranged in the cabinet; a door body is rotatably connected to the outside of the storage chamber; a vacuum device is arranged in the cabinet, one end of the vacuum device is communicated with the storage chamber, and the other end is communicated with the outside of the cabinet; a temperature adjusting device is arranged in the storage chamber; a freeze-drying function button is arranged on the side of the door body away from the storage chamber; a fresh-keeping function button is arranged on the side of the door body away from the storage chamber; when the freeze-drying function button is turned on, the vacuum device and the temperature adjusting device are started, the temperature and the vacuum degree in the storage chamber reach the set freeze-drying temperature and the set freeze-drying vacuum degree, so that the food in the storage chamber is freeze-dried; when the fresh-keeping function button is turned on, the vacuum device and the temperature adjusting device are started, the temperature and the vacuum degree in the storage chamber reach the set fresh-keeping temperature and the set fresh-keeping vacuum degree, so that the food in the storage chamber is vacuum fresh-kept, so that the refrigerator has the fruit and vegetable freeze-drying function product, and the long-term storage effect of the fruit and vegetable can be achieved. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the application, the drawings needed in the embodiments will be briefly introduced below. Obviously, other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0041] Figure 1 It is a structural schematic view of the refrigerator with fruit and vegetable freeze-drying function in the application.

[0042] Figure 2 It is a structural schematic view of the refrigerating device in the application.

[0043] Figure 3 It is a structural schematic view of the door body in the application.

[0044] Explanation of reference signs:

[0045] 1-cabinet; 11-storage chamber; 12-door body; 13-guide rail; 14-shelf; 2-vacuum device; 21-air inlet pipe; 22-solenoid valve; 23-vacuum pump; 24-air outlet pipe; 25-silencer; 3-temperature adjusting device; 31-heating pipe; 32-evaporator; 4-freeze-drying function button; 5-fresh-keeping function button; 6-pressure relief valve knob; 7-temperature sensor; 8-vacuum degree sensor; 9-control panel; 10-display panel. DETAILED DESCRIPTION

[0046] In order for those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor should fall within the scope of protection of the present application.

[0047] Since there is no product with fruit and vegetable freeze-drying function in the refrigerator in some technologies, the purpose of long-term preservation of fruits and vegetables cannot be achieved. In order to solve the technical problem, the present application provides a refrigerator with fruit and vegetable freeze-drying function. The structure of each part of the refrigerator with fruit and vegetable freeze-drying function will be described below:

[0048] For example, freeze-dried fruits and vegetables are a healthy food choice that meets the demand for healthy food among modern consumers. Especially in the fast-paced life, people's consumption structure and demand are constantly upgrading, and freeze-dried food is favored by more and more consumers. Freeze-dried fruits and vegetables can maximize the retention of nutrients such as vitamins and minerals in fruits and vegetables by rapidly freezing and removing water under low temperature and vacuum conditions, so that the nutritional value of freeze-dried fruits and vegetables is comparable to that of fresh fruits and vegetables. Compared with drying techniques such as sun drying and oven drying, freeze-drying technology can preserve the original flavor and texture of fruits and vegetables, and can maintain the cell structure of fruits and vegetables while removing water, thereby maintaining the crisp and tender texture of fruits and vegetables without cracking and deformation. However, there is no product with fruit and vegetable freeze-drying function in the refrigerator industry at present.

[0049] Fruits and vegetables are rich in nutrients such as vitamins and dietary fiber, which can provide various nutrients to the human body. However, the shelf life of fresh fruits and vegetables is often short and prone to rot and deterioration, resulting in a large amount of waste. The refrigerator mainly delays food spoilage through low temperature, but for fruit and vegetable food materials, long-term refrigeration can lead to loss of nutrients and decrease in taste. Freeze-dried fruits and vegetables are freeze-dried through low-temperature freezing technology, which directly sublimes water in fresh fruits and vegetables from solid to gas, thereby removing water and achieving the purpose of long-term preservation of fruits and vegetables, while effectively preserving the nutrients and taste of fruits and vegetables. There are some fruit and vegetable drying equipment on the market at present, but these equipment usually occupy a large space and are complex to operate, which is not suitable for daily use at home.

[0050] In view of the above problems, Figure 1It can be known that the refrigerator with fruit and vegetable freeze-drying function is provided, which comprises a cabinet 1, a storage chamber 11 is arranged in the cabinet 1, a door body 12 is rotatably connected to the outside of the storage chamber 11, a vacuum device 2 is arranged in the cabinet 1, one end of the vacuum device 2 is communicated with the storage chamber 11, and the other end is communicated with the outside of the cabinet 1, the vacuum device 2 is used for providing a vacuum environment in the storage chamber 11, a temperature adjusting device 3 is arranged in the storage chamber 11, the temperature adjusting device 3 is used for increasing or decreasing the temperature in the storage chamber 11, a freeze-drying function button 4 is arranged on the side of the door body 12 away from the storage chamber 11, and a fresh-keeping function button 5 is arranged on the side of the door body 12 away from the storage chamber 11, when the freeze-drying function button 4 is turned on, the vacuum device 2 and the temperature adjusting device 3 are started, the temperature and the vacuum degree in the storage chamber 11 reach the set freeze-drying temperature and the set freeze-drying vacuum degree, so that the food in the storage chamber 11 is freeze-dried, and when the fresh-keeping function button 5 is turned on, the vacuum device 2 and the temperature adjusting device 3 are started, the temperature and the vacuum degree in the storage chamber 11 reach the set fresh-keeping temperature and the set fresh-keeping vacuum degree, so that the food in the storage chamber 11 is vacuum fresh-kept.

[0051] The refrigerator with fruit and vegetable freeze-drying function is provided, a fruit and vegetable freeze-drying function special area, that is, the storage chamber 11, is additionally arranged on the refrigerator, the storage chamber 11 is provided with two modes, the freeze-drying function button 4 is turned on, the low-temperature and rapid drying treatment of the fruit and vegetable in the storage chamber 11 is realized, so that the fruit and vegetable is freeze-dried, the storage period of the fruit and vegetable is effectively prolonged, and the nutritional ingredients of the fruit and vegetable are well reserved, the fresh-keeping function button 5 is turned on, a vacuum and fresh-keeping environment is provided in the storage chamber 11, the fruit and vegetable in the storage chamber 11 can be prevented from breeding bacteria in the vacuum environment, the fruit and vegetable in the storage chamber 11 can be prevented from being spoiled and the fresh duration of the fruit and vegetable is prolonged in the moist environment, that is, the suitable storage temperature of the fruit and vegetable, so that the storage period of the fruit and vegetable is effectively prolonged.

[0052] By Figure 2The vacuum device 2 includes: an inlet pipe 21, one end of which is connected to the storage chamber 11; a solenoid valve 22, the other end of which is connected to the inlet pipe 21; a vacuum pump 23, which is connected to the solenoid valve 22; and an outlet pipe 24, one end of which is connected to the vacuum pump 23, and the other end of which is connected to the outside of the housing 1. When the vacuum device 2 is working, the vacuum pump 23 and the solenoid valve 22 are opened, and the storage chamber 11 is evacuated through the inlet pipe 21. The gas inside the storage chamber 11 is discharged to the outside of the housing 1 through the outlet pipe 24. During operation, the vacuum device 2 adjusts the storage chamber 11 to a corresponding preset vacuum range according to different functional modes. The vacuum device 2 can automatically start and stop to achieve the required vacuum level. When the vacuum pump 23 stops working, it closes synchronously with the solenoid valve 22 to prevent air from outside the housing 1 from entering the storage chamber 11.

[0053] Depend on Figure 2 It is understood that the vacuum device 2 further includes a silencer 25, which is disposed at one end of the outlet pipe 24 near the outside of the housing 1. The silencer 25 disposed at the end of the outlet pipe 24 can reduce the noise generated by the vacuum pump 23 and the solenoid valve 22 during the vacuuming process, thereby improving user satisfaction.

[0054] Depend on Figure 1 It is known that the temperature regulating device 3 includes: a heating tube 31, which is disposed at the bottom of the storage chamber 11; the heating tube 31 is used to increase the temperature inside the storage chamber 11; and an evaporator 32, which is disposed on the inner wall of the storage chamber 11, and is electrically connected to other refrigeration devices inside the housing 1, such as a compressor, and is used to reduce the temperature inside the storage chamber 11.

[0055] Depend on Figure 3 As can be seen, the refrigerator with fruit and vegetable freeze-drying function further includes a pressure relief valve knob 6. The pressure relief valve knob 6 is located on the side of the door 12 away from the storage compartment 11. The pressure relief valve knob 6 is used to maintain the vacuum level inside the storage compartment 11 at the same level as the vacuum level outside the refrigerator body 1. When the user needs to remove freeze-dried or vacuum-preserved fruits and vegetables, they turn off the corresponding freeze-drying mode or preservation mode by turning off the freeze-drying function button 4 or the preservation function button 5, and then open the pressure relief valve knob 6 on the door 12 to release pressure. After the vacuum level inside the storage compartment 11 is consistent with the vacuum level outside the refrigerator body 1, the door 12 can be opened to remove the food. The pressure relief valve knob 6 is used to prevent excessive pressure inside the storage compartment 11 from preventing the user from opening the door 12.

[0056] Depend on Figure 1The temperature sensor 7 is arranged on the top of the storage chamber 11, and is used to obtain the temperature in the storage chamber 11. The temperature obtained by the temperature sensor 7 is sent to the control panel 9, so that the control panel 9 controls the opening or closing of the temperature adjusting device 3, thereby accurately controlling the temperature in the storage chamber 11. The vacuum degree sensor 8 is arranged on the top of the storage chamber 11, and is used to obtain the vacuum degree in the storage chamber 11. The vacuum degree obtained by the vacuum degree sensor 8 is sent to the control panel 9, so that the control panel 9 controls the opening or closing of the vacuum device 2, thereby accurately controlling the vacuum degree in the storage chamber 11.

[0057] By Figure 1 The temperature sensor 7 is arranged on the top of the storage chamber 11, and is used to obtain the temperature in the storage chamber 11. The temperature obtained by the temperature sensor 7 is sent to the control panel 9, so that the control panel 9 controls the opening or closing of the temperature adjusting device 3, thereby accurately controlling the temperature in the storage chamber 11. The vacuum degree sensor 8 is arranged on the top of the storage chamber 11, and is used to obtain the vacuum degree in the storage chamber 11. The vacuum degree obtained by the vacuum degree sensor 8 is sent to the control panel 9, so that the control panel 9 controls the opening or closing of the vacuum device 2, thereby accurately controlling the vacuum degree in the storage chamber 11.

[0058] For example, when the freeze-drying function button 4 is turned on, the freeze-drying function is activated, which includes three stages: First, the storage chamber 11 enters the quick-freezing stage: the control panel 9 turns on the evaporator 32 to control the temperature inside the storage chamber 11 at -30 to -40°C, rapidly freezing the fruits and vegetables; Second, the storage chamber 11 enters the first drying stage: the control panel 9 turns on the heating tube 31 and the vacuum device 2 to raise the temperature inside the storage chamber 11 to -10 to -20°C, and control the vacuum degree at 50 to 100 kPa; Finally, the storage chamber 11 enters the second drying stage: the control panel 9 turns on the heating tube 31 and the vacuum device 2 to raise the temperature inside the storage chamber 11 to -5 to -10°C, and control the vacuum degree at 10 to 20 kPa; thus realizing the freeze-drying function of fruits and vegetables.

[0059] In this embodiment, the control panel is further configured to: when the preservation function button 5 is turned on, activate the temperature adjustment device 3 and the vacuum device 2, so that the temperature in the storage chamber 11 is within a fourth temperature range and the vacuum degree is within a third pressure range, wherein the fourth temperature range is 2 to 8°C and the third pressure range is 60 to 80 kPa; so that the food in the storage chamber 11 is vacuum preserved.

[0060] For example, when the preservation function button 5 is turned on, the preservation function is activated. The control panel 9 controls the temperature in the storage chamber 11 to 2 to 8°C and the vacuum degree to 60 to 80 kPa by turning on the evaporator 32 and the vacuum device 2, so as to realize the function of vacuum preservation of fruits and vegetables.

[0061] Depend on Figure 3 As can be seen, the refrigerator with fruit and vegetable freeze-drying function further includes: a display panel 10, which is disposed on the side of the door 12 away from the storage compartment 11. The display panel 10 is electrically connected to the temperature sensor 7 and the vacuum sensor 8, and is used to display the temperature and vacuum level of the storage compartment 11. The temperature and vacuum level of the storage compartment 11 can be obtained through the display panel 10, and the specific temperature and vacuum level values ​​of the storage compartment 11 can be adjusted through the display panel 10, so that the storage compartment 11 can meet the preservation requirements of any food.

[0062] Depend on Figure 1It can be known that the refrigerator with the freeze-drying function of fruits and vegetables further comprises: guide rails 13 oppositely arranged in the storage chamber 11 along the width direction of the storage chamber 11; and a plurality of shelves 14 slidably connected to the guide rails 13. The storage chamber 11 is provided with a plurality of shelves 14, so that different types of food materials can be placed separately, such as vegetables, meat, etc. placed in different shelves 14, thereby facilitating the user to manage the food materials, and each of the shelves is independent and close to each other, preventing the phenomenon of odor mixing between the food materials.

[0063] The present application has the following beneficial effects: the present application designs a refrigerator with the freeze-drying function of fruits and vegetables, removes the moisture in the fruits and vegetables in a low-temperature and low-pressure environment, the freeze-dried fruits and vegetables have a longer storage time, and can better retain the nutritional ingredients and taste of the fruits and vegetables, thereby meeting the needs of consumers to make freeze-dried fruits and vegetables at home.

[0064] The above specific embodiments further specifically describe the purposes, technical solutions and beneficial effects of the embodiments of the present application, and it should be understood that any modification, equivalent replacement, improvement, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A refrigerator with a fruit and vegetable freeze-drying function, characterized in that, The utility model relates to a kind of freeze-drying and vacuum fresh-keeping refrigerator, including: Box (1), storage chamber (11) is provided in the box (1);The door body (12) is rotatably connected outside the storage chamber (11); Vacuum device (2), the vacuum device (2) is arranged in the box (1), one end of the vacuum device (2) is communicated with the storage chamber (11), and the other end is communicated with the outside of the box (1); Temperature regulating device (3), the temperature regulating device (3) is arranged in the storage chamber (11); Freeze-drying function button (4), the freeze-drying function button (4) is arranged on the side of the door body (12) away from the storage chamber (11); Fresh-keeping function button (5), the fresh-keeping function button (5) is arranged on the side of the door body (12) away from the storage chamber (11); Temperature sensor (7), the temperature sensor (7) is arranged on the top of the storage chamber (11), and the temperature sensor (7) is used to obtain the temperature in the storage chamber (11); Vacuum degree sensor (8), the vacuum degree sensor (8) is arranged on the top of the storage chamber (11), and the vacuum degree sensor (8) is used to obtain the vacuum degree in the storage chamber (11); Control panel (9), the control panel (9) is arranged on the top of the box (1), and the control panel (9) is electrically connected with the vacuum device (2), temperature regulating device (3), temperature sensor (7), vacuum degree sensor (8), and the control panel (9) is configured to: When the freeze-drying function button (4) is opened, the temperature regulating device (3) is started, so that the temperature in the storage chamber (11) is located in the first temperature range, and lasts for the first time;After the first time, the vacuum device (2) is started, so that the temperature in the storage chamber (11) is located in the second temperature range and the vacuum degree is located in the first pressure range, and lasts for the second time;After the second time, the temperature in the storage chamber (11) is located in the third temperature range and the vacuum degree is located in the second pressure range, so that the food in the storage chamber (11) is freeze-dried;The first temperature range is-30 to-40 ℃;The second temperature range is-10 to-20 ℃;The first pressure range is 50 to 100 kPa;The third temperature range is-5 to-10 ℃;The second pressure range is 10 to 20 kPa; Wherein, when the freeze-drying function button (4) is opened, the vacuum device (2), temperature regulating device (3) is started, and the temperature and vacuum degree in the storage chamber (11) reach the set freeze-drying temperature and the set freeze-drying vacuum degree, so that the food in the storage chamber (11) is freeze-dried; Wherein, when the fresh-keeping function button (5) is opened, the vacuum device (2), temperature regulating device (3) is started, and the temperature and vacuum degree in the storage chamber (11) reach the set fresh-keeping temperature and the set fresh-keeping vacuum degree, so that the food in the storage chamber (11) is vacuum fresh-keeping.

2. The refrigerator having a fruit and vegetable freeze-drying function according to claim 1, characterized in that, The vacuum device (2) includes: Air inlet pipe (21), one end of the air inlet pipe (21) is communicated with the storage chamber (11); An electromagnetic valve (22) is connected to the other end of the air inlet pipe (21); A vacuum pump (23) is connected to the electromagnetic valve (22); An air outlet pipe (24) is connected to the vacuum pump (23) at one end and is communicated to the outside of the box (1) at the other end.

3. The refrigerator having a fruit and vegetable freeze-drying function according to claim 2, characterized in that, The vacuum device (2) further comprises: A silencer (25) is arranged at the end of the air outlet pipe (24) close to the outside of the box (1).

4. The refrigerator having a fruit and vegetable freeze-drying function according to claim 1, characterized in that, The temperature adjusting device (3) comprises: A heating pipe (31) is arranged at the bottom of the storage chamber (11); An evaporator (32) is arranged on the inner wall of the storage chamber (11).

5. The refrigerator having a fruit and vegetable freeze-drying function according to claim 1, wherein Further comprising: A pressure relief valve knob (6) is arranged on the side of the door body (12) away from the storage chamber (11), and is used to keep the vacuum degree in the storage chamber (11) consistent with the vacuum degree outside the box (1).

6. The refrigerator having a fruit and vegetable freeze-drying function according to claim 1, wherein The control panel is further configured to: When the fresh-keeping function button (5) is turned on, the temperature adjusting device (3) and the vacuum device (2) are started, so that the temperature in the storage chamber (11) is in the fourth temperature range and the vacuum degree is in the third pressure range, so that the food in the storage chamber (11) is vacuum fresh-kept.

7. The refrigerator having a fruit and vegetable freeze-drying function according to claim 1, wherein Further comprising: A display panel (10) is arranged on the side of the door body (12) away from the storage chamber (11), and is electrically connected with the temperature sensor (7) and the vacuum degree sensor (8), and is used to display the temperature and vacuum degree of the storage chamber (11).

8. The refrigerator having a fruit and vegetable freeze-drying function according to claim 1, wherein Further comprising: A guide rail (13) is oppositely arranged in the storage chamber (11) along the width direction of the storage chamber (11); A plurality of shelves (14) are slidingly connected to the guide rail (13).

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