Refrigerator with fruit and vegetable freeze-drying function

Abstract

The invention provides a refrigerator with a fruit and vegetable freeze-drying function, which comprises a refrigerator body, a freeze-drying device and a freeze-drying device, a door body is rotationally connected outside the storage chamber; one end of the vacuum device communicates with the storage chamber, and the other end of the vacuum device communicates with the outside of the box body; the temperature adjusting device is arranged in the storage chamber; the freeze-drying function key is arranged on the side, away from the storage chamber, of the door body; the fresh-keeping function key is arranged on the side, away from the storage chamber, of the door body; when the freeze-drying function key is turned on, 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 key is turned on, 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 food in the storage chamber is subjected to vacuum fresh-keeping, and the problems that no product with the fruit and vegetable freeze-drying function exists in an existing refrigerator, and the purpose of storing fruits and vegetables for a long time cannot be achieved are solved.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration equipment, and in particular to a refrigerator with a freeze-drying function for fruits and vegetables. Background Art

[0002] Fruits and vegetables are rich in nutrients such as vitamins and dietary fiber, which can provide various nutrients for the human body. However, the shelf life of fresh fruits and vegetables is often short, and they are prone to rot and deterioration, resulting in a lot of waste. Freeze-dried fruits and vegetables can maximize the retention of nutrients in fruits and vegetables, such as vitamins and minerals, by quickly freezing and removing moisture 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 by keeping the temperature low, but for fruits and vegetables, long-term refrigeration can easily lead to nutrient loss and a decrease in taste. Freeze-drying fruits and vegetables uses low-temperature freezing technology to directly sublimate the water in fresh fruits and vegetables from a solid state to a gaseous state, thereby removing the water and achieving the purpose of 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, but these equipment usually take up a large space and are complicated to operate, making them unsuitable for daily household use. There are currently no products in the refrigerator industry that have the function of freeze-drying fruits and vegetables. Summary of the invention

[0005] The present application provides a refrigerator with a fruit and vegetable freeze-drying function to solve the technical problem that existing refrigerators do not have a product with a fruit and vegetable freeze-drying function and cannot achieve the purpose of long-term preservation of fruits and vegetables.

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

[0007] A box body, wherein a storage chamber is arranged inside the box body; a door body is rotatably connected to the outer side of the storage chamber;

[0008] A vacuum device, wherein the vacuum device is disposed in the box, one end of the vacuum device is connected to the storage chamber, and the other end of the vacuum device is connected to the outside of the box;

[0009] A temperature regulating device, wherein the temperature regulating device is arranged in the storage chamber;

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

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

[0012] When the freeze-drying function button is turned on, the vacuum device and the temperature regulating device are started, and 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] Among them, when the preservation function button is turned on, the vacuum device and the temperature adjustment device are started, and the temperature and vacuum degree in the storage chamber reach the set preservation temperature and the set preservation vacuum degree, so that the food in the storage chamber is vacuum preserved.

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

[0015] An air intake pipe, one end of which is connected to the storage chamber;

[0016] A solenoid valve connected to the other end of the air intake pipe;

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

[0018] An air outlet pipe, one end of which is connected to the vacuum pump, and the other end of which is connected to the outside of the box.

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

[0020] A muffler is arranged at one end of the air outlet pipe close to the outside of the box.

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

[0022] A heating tube, the heating tube is arranged at the bottom of the storage chamber;

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

[0024] In some embodiments, the refrigerator with the function of freeze-drying fruits and vegetables further comprises:

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

[0026] In some embodiments, the refrigerator with the function of freeze-drying fruits and vegetables further comprises:

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

[0028] A vacuum sensor is disposed 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 function of freeze-drying fruits and vegetables further comprises:

[0030] A control panel is disposed on the top of the box body, the control panel is electrically connected to the vacuum device, the temperature regulating device, the temperature sensor, and the vacuum degree sensor, and the control panel is configured as follows:

[0031] When the freeze-drying function button is turned on, the temperature regulating device is started so that the temperature in the storage chamber is within a first temperature range and lasts for a first time; after the first time, the vacuum device is started so that the temperature in the storage chamber is within a second temperature range and the vacuum degree is within a first pressure range and lasts for a second time; after the second time, the temperature in the storage chamber is within a third temperature range and the vacuum degree is within 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 regulating device and the vacuum device are started, so that the temperature in the storage chamber is within the fourth temperature range and the vacuum degree is within the third pressure range, so that the food in the storage chamber can be vacuum-preserved.

[0034] In some embodiments, the refrigerator with the function of freeze-drying fruits and vegetables further comprises:

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

[0036] In some embodiments, the refrigerator with the function of freeze-drying fruits and vegetables further comprises:

[0037] A guide rail, the guide rail is relatively arranged in the storage chamber along the width direction of the storage chamber;

[0038] A plurality of racks are provided, wherein the racks are slidably connected to the guide rails.

[0039] The present application provides a refrigerator with a freeze-drying function for fruits and vegetables, comprising: a box body, a storage chamber is arranged in the box body; a door body is rotatably connected to the outer side of the storage chamber; a vacuum device, the vacuum device is arranged in the box body, one end of the vacuum device is connected to the storage chamber, and the other end is connected to the outside of the box body; a temperature regulating device, the temperature regulating device is arranged in the storage chamber; a freeze-drying function button, the freeze-drying function button is arranged on a side of the door body away from the storage chamber; a fresh-keeping function button, the fresh-keeping function button is arranged on a side of the door body away from the storage chamber; wherein, when the freeze-drying function button is turned on, the vacuum device and the temperature regulating 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; wherein, when the fresh-keeping function button is turned on, the vacuum device and the temperature regulating 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-preserved, so as to realize the product with the freeze-drying function of fruits and vegetables in the refrigerator, thereby achieving the effect of long-term preservation of fruits and vegetables. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0041] Figure 1 This is a schematic diagram of the structure of a refrigerator with a fruit and vegetable freeze-drying function in this application;

[0042] Figure 2 It is a structural schematic diagram of the refrigeration device in this application;

[0043] Figure 3 It is a schematic diagram of the structure of the door body in this application.

[0044] Description of reference numerals:

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

[0046] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

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

[0048] For example, freeze-dried fruits and vegetables, as a healthy food choice, meet the needs of modern consumers for healthy food, especially in the fast-paced life, people's consumption structure and consumption demand are constantly upgraded, and freeze-dried food is favored by more and more consumers. Freeze-dried fruits and vegetables can retain the nutrients in fruits and vegetables, such as vitamins, minerals, etc., to the maximum extent by quickly freezing and removing moisture from fruits and vegetables under low temperature and vacuum conditions, making the nutritional value of freeze-dried fruits and vegetables comparable to that of fresh fruits and vegetables. Compared with drying technologies such as sun drying and oven drying, freeze-drying technology can retain the original flavor and taste of fruits and vegetables. While removing moisture from fruits and vegetables, it can maintain the cell structure of fruits and vegetables, thereby maintaining the crisp and tender taste of fruits and vegetables and preventing them from cracking and deforming. However, there are currently no products in the refrigerator industry that have the function of freeze-drying fruits and vegetables.

[0049] Fruits and vegetables are rich in nutrients such as vitamins and dietary fiber, which can provide the human body with various nutrients. However, the shelf life of fresh fruits and vegetables is often short, and they are prone to rot and deterioration, resulting in a lot of waste. Refrigerators mainly delay food spoilage by low temperatures, but for fruit and vegetable ingredients, long-term refrigeration can easily lead to nutrient loss and a decrease in taste. Freeze-dried fruits and vegetables use low-temperature freezing technology to directly sublimate the water in fresh fruits and vegetables from a solid state to a gaseous state, thereby removing the water and achieving the purpose of long-term preservation of fruits and vegetables, while effectively retaining the nutrients and taste of fruits and vegetables. There are already some fruit and vegetable drying equipment on the market, but these equipment usually take up a large space and are complicated to operate, making them unsuitable for daily household use.

[0050] In response to the above problems, Figure 1It can be seen that the present application provides a refrigerator with a freeze-drying function for fruits and vegetables, comprising: a box body 1, wherein a storage chamber 11 is arranged in the box body 1; a door body 12 is rotatably connected to the outer side of the storage chamber 11; a vacuum device 2, wherein the vacuum device 2 is arranged in the box body 1, wherein one end of the vacuum device 2 is connected to the storage chamber 11, and the other end is connected to the outside of the box body 1; the vacuum device 2 is used to provide a vacuum environment in the storage chamber 11; a temperature regulating device 3, wherein the temperature regulating device 3 is arranged in the storage chamber 11; the temperature regulating device 3 is used to increase or decrease the temperature in the storage chamber 11; a freeze-drying function button 4, wherein the freeze-drying function button 4 is arranged on the door body 12 is on a side away from the storage chamber 11; a fresh-keeping function button 5, which is arranged on a side of the door body 12 away from the storage chamber 11; wherein, when the freeze-drying function button 4 is turned on, the vacuum device 2 and the temperature regulating device 3 are started, and 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; wherein, when the fresh-keeping function button 5 is turned on, the vacuum device 2 and the temperature regulating device 3 are started, and 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-preserved.

[0051] The present application provides a refrigerator with a freeze-drying function for fruits and vegetables. By adding a freeze-drying function area for fruits and vegetables, namely the storage chamber 11, to the refrigerator, the storage chamber 11 is provided with two modes: by turning on the freeze-drying function button 4, low-temperature and rapid drying treatment of fruits and vegetables in the storage chamber 11 can be achieved, thereby freeze-drying the fruits and vegetables, which can effectively extend the shelf life of the fruits and vegetables and better retain the nutritional components of the fruits and vegetables; by turning on the fresh-keeping function button 5, a vacuum and fresh-keeping environment can be provided in the storage chamber 11, and the vacuum environment can prevent the fruits and vegetables in the storage chamber 11 from breeding bacteria. The moisturizing environment, namely the appropriate storage temperature for fruits and vegetables, can extend the freshness of the fruits and vegetables in the storage chamber 11, thereby effectively extending the shelf life of the fruits and vegetables and preventing the fruits and vegetables from spoiling.

[0052] Depend on Figure 2It can be known that the vacuum device 2 includes: an air inlet pipe 21, one end of which is connected to the storage chamber 11; a solenoid valve 22, which is connected to the other end of the air inlet pipe 21; a vacuum pump 23, which is connected to the solenoid valve 22; and an air 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 box 1. When the vacuum device 2 is working, the vacuum pump 23 and the solenoid valve 22 are turned on, and the inside of the storage chamber 11 is vacuumed through the air inlet pipe 21, and the gas inside the storage chamber 11 is discharged to the outside of the box 1 through the air outlet pipe 24. During the operation of the vacuum device 2, the vacuum device 2 adjusts the storage chamber 11 to the corresponding preset vacuum range according to different functional modes, and the vacuum device 2 can be automatically turned on and off to achieve the required vacuum degree. Among them, when the vacuum pump 23 stops working, it is closed synchronously with the solenoid valve 22 to prevent the air outside the box 1 from entering the storage chamber 11.

[0053] Depend on Figure 2 It can be seen that the vacuum device 2 further includes: a muffler 25, which is arranged at one end of the air outlet pipe 24 close to the outside of the box body 1. The muffler 25 arranged at the end of the air outlet pipe 24 can reduce the noise generated by the vacuum pump 23 and the solenoid valve 22 during the vacuuming process, thereby improving the user's satisfaction.

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

[0055] Depend on Figure 3 It can be known that the refrigerator with the freeze-drying function of fruits and vegetables further includes: a pressure relief valve knob 6, which is arranged on the side of the door body 12 away from the storage chamber 11, and the pressure relief valve knob 6 is used to keep the vacuum degree in the storage chamber 11 consistent with the vacuum degree outside the box body 1. When the user needs to take out freeze-dried or vacuum-preserved fruits and vegetables, the corresponding freeze-drying mode or preservation mode is turned off by closing the freeze-drying function button 4 or the preservation function button 5, and then the pressure relief valve knob 6 on the door body 12 is opened to release the pressure. After the vacuum degree in the storage chamber 11 is consistent with the vacuum degree outside the box body 1, the door body 12 can be opened to take out the food. The pressure relief valve knob 6 is used to prevent the pressure in the storage chamber 11 from being too high, causing the user to be unable to open the door body 12.

[0056] Depend on Figure 1It can be known that the refrigerator with the freeze-drying function of fruits and vegetables further includes: a temperature sensor 7, which is arranged at the top of the storage chamber 11, and is used to obtain the temperature in the storage chamber 11; a vacuum sensor 8, which is arranged at the top of the storage chamber 11, and is used to obtain the vacuum degree in the storage chamber 11. The temperature in the storage chamber 11 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 adjustment device 3, thereby accurately controlling the temperature in the storage chamber 11; the vacuum degree in the storage chamber 11 obtained by the vacuum 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] Depend on Figure 1 It can be known that the refrigerator with the freeze-drying function of fruits and vegetables further includes: a control panel 9, which is arranged on the top of the box body 1, and is electrically connected to the vacuum device 2, the temperature adjustment device 3, the temperature sensor 7, and the vacuum degree sensor 8. The control panel 9 is configured as follows: when the freeze-drying function button 4 is turned on, the temperature adjustment device 3 is started to make the temperature in the storage chamber 11 within a first temperature range, the first temperature range is -30 to -40°C; and lasts for a first time; after the first time, the vacuum device 2 is started to make the temperature in the storage chamber 11 within a second temperature range and the vacuum degree within a first pressure range, the second temperature range is -10 to -20°C, and the first pressure range is 50 to 100 kPa; and lasts for a second time; after the second time, the temperature in the storage chamber 11 is within a third temperature range and the vacuum degree is within a second pressure range, the third temperature range is -5 to -10°C, and the second pressure range is 10 to 20 kPa, so that the food in the storage chamber 11 is freeze-dried.

[0058] Exemplarily, when the freeze-drying function button 4 is turned on, the freeze-drying function 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 in the storage chamber 11 at -30 to -40°C, and quickly freezes the fruit and vegetable ingredients; secondly, 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 increase the temperature in the storage chamber 11 to -10 to -20°C, and the vacuum degree is controlled 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 increase the temperature in the storage chamber 11 to -5 to -10°C, and the vacuum degree is controlled at 10 to 20 kPa, so as to realize the freeze-drying function of fruits and vegetables.

[0059] In this embodiment, the control panel is further configured as follows: when the preservation function button 5 is turned on, the temperature adjustment device 3 and the vacuum device 2 are started, 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, 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 can be vacuum preserved.

[0060] Exemplarily, when the preservation function button 5 is turned on, the preservation function is turned on, and the control panel 9 turns on the evaporator 32 and the vacuum device 2 to control the temperature in the storage chamber 11 at 2 to 8° C. and the vacuum degree at 60 to 80 kPa to achieve the vacuum preservation function of fruits and vegetables.

[0061] Depend on Figure 3 It can be known that the refrigerator with the freeze-drying function of fruits and vegetables further includes: a display panel 10, the display panel 10 is arranged on the side of the door body 12 away from the storage chamber 11, the display panel 10 is electrically connected to the temperature sensor 7 and the vacuum sensor 8, and the display panel 10 is used to display the temperature and vacuum degree of the storage chamber 11. The temperature and vacuum degree of the storage chamber 11 can be obtained through the display panel 10, wherein the specific temperature and vacuum degree values ​​of the storage chamber 11 can be adjusted through the display panel 10, so that the storage chamber 11 can meet the freshness requirements of any food.

[0062] Depend on Figure 1It can be seen that the refrigerator with the freeze-drying function of fruits and vegetables further includes: a guide rail 13, which is relatively arranged in the storage chamber 11 along the width direction of the storage chamber 11; and a plurality of shelves 14, which are slidably connected to the guide rail 13. A plurality of shelves 14 are arranged in the storage chamber 11, so that different types of food can be placed separately, such as vegetables, meat, etc. are placed in different shelves 14, so that it is convenient for users to manage food, and each shelf is independent and close to each other, so as to prevent the phenomenon of cross-flavor between food.

[0063] The present invention has the following beneficial effects: the present invention designs a refrigerator with a fruit and vegetable freeze-drying function, which removes moisture from fruits and vegetables in a low-temperature and low-pressure environment. The freeze-dried fruits and vegetables can be preserved for a longer time, and the nutritional components and taste of the fruits and vegetables can be better preserved, thereby meeting the needs of consumers for homemade freeze-dried fruits and vegetables.

[0064] The above specific implementation methods further explain in detail the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that any modifications, equivalent substitutions, improvements, 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 freeze-drying function for fruits and vegetables, characterized in that: include: A box body (1), wherein a storage chamber (11) is arranged inside the box body (1); a door body (12) is rotatably connected to the outer side of the storage chamber (11); A vacuum device (2), wherein the vacuum device (2) is arranged in the box (1), one end of the vacuum device (2) is connected to the storage chamber (11), and the other end of the vacuum device (2) is connected to the outside of the box (1); a temperature regulating device (3), wherein the temperature regulating device (3) is arranged in the storage chamber (11); A freeze-drying function button (4), wherein the freeze-drying function button (4) is arranged on a side of the door body (12) away from the storage chamber (11); A fresh-keeping function button (5), wherein the fresh-keeping function button (5) is arranged on a 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 regulating device (3) are started, and 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; When the fresh-keeping function button (5) is turned on, the vacuum device (2) and the temperature regulating device (3) are started, and 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-preserved.

2. A refrigerator with a freeze-drying function for fruits and vegetables according to claim 1, characterized in that: The vacuum device (2) comprises: an air intake pipe (21), one end of the air intake pipe (21) being connected to the storage chamber (11); A solenoid valve (22), the solenoid valve (22) being connected to the other end of the air intake pipe (21); A vacuum pump (23), wherein the vacuum pump (23) is connected to the solenoid valve (22); An air 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 box (1).

3. The refrigerator with the function of freeze-drying fruits and vegetables according to claim 2, characterized in that: The vacuum device (2) further comprises: A muffler (25), wherein the muffler (25) is arranged at one end of the air outlet pipe (24) close to the outside of the box (1).

4. The refrigerator with freeze-drying function for fruits and vegetables according to claim 1, characterized in that: The temperature regulating device (3) comprises: A heating tube (31), wherein the heating tube (31) is arranged at the bottom of the storage chamber (11); An evaporator (32), wherein the evaporator (32) is arranged on the inner wall of the storage chamber (11).

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

6. The refrigerator with freeze-drying function for fruits and vegetables according to claim 1, characterized in that: Also includes: a temperature sensor (7), the temperature sensor (7) being arranged at the top of the storage chamber (11), and the temperature sensor (7) being used to obtain the temperature in the storage chamber (11); A vacuum sensor (8), wherein the vacuum sensor (8) is arranged at the top of the storage chamber (11), and the vacuum sensor (8) is used to obtain the vacuum degree in the storage chamber (11).

7. The refrigerator with the function of freeze-drying fruits and vegetables according to claim 6, characterized in that: Also includes: A control panel (9), the control panel (9) being arranged on the top of the box (1), the control panel (9) being electrically connected to the vacuum device (2), the temperature regulating device (3), the temperature sensor (7), and the vacuum degree sensor (8), and the control panel (9) being configured as follows: When the freeze-drying function button (4) is turned on, the temperature regulating device (3) is started so that the temperature in the storage chamber (11) is within a first temperature range and lasts for a first time; after the first time, the vacuum device (2) is started so that the temperature in the storage chamber (11) is within a second temperature range and the vacuum degree is within a first pressure range and lasts for a second time; after the second time, the temperature in the storage chamber (11) is within a third temperature range and the vacuum degree is within a second pressure range, so that the food in the storage chamber (11) is freeze-dried.

8. The refrigerator with the function of freeze-drying fruits and vegetables according to claim 7, characterized in that: The control panel is also configured to: When the fresh-keeping function button (5) is turned on, the temperature regulating device (3) and the vacuum device (2) are started, 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, so that the food in the storage chamber (11) is vacuum-preserved.

9. The refrigerator with freeze-drying function for fruits and vegetables according to claim 6, characterized in that: Also includes: A display panel (10), wherein the display panel (10) is arranged on a side of the door body (12) away from the storage chamber (11), the display panel (10) is electrically connected to the temperature sensor (7) and the vacuum sensor (8), and the display panel (10) is used to display the temperature and vacuum degree of the storage chamber (11).

10. The refrigerator with the function of freeze-drying fruits and vegetables according to claim 1, characterized in that: Also includes: A guide rail (13), the guide rail (13) being relatively arranged in the storage chamber (11) along the width direction of the storage chamber (11); A plurality of racks (14) are provided, wherein the racks (14) are slidably connected to the guide rails (13).

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