A refrigerator based on temperature and humidity sensors

Abstract

The present invention relates to the technical field of refrigerators, and specifically discloses a refrigerator based on a temperature and humidity sensor, comprising a protective shell, a refrigerator body is installed on the top of the protective shell, the inner bottom end of the refrigerator body is rotatably connected to a rotating shaft, the top of the rotating shaft is fixedly connected to a screw, a connecting block is slidably connected to the inner wall of the refrigerator body, and a first screw hole matching the screw is provided on the top of the connecting block. The present invention adopts the above structure, when it is found that the item is large and difficult to place, the user can turn the screw, the rotating shaft can make the end of the screw rotate in situ, and the connecting block will be pushed or pulled by the screw, so that the connecting block slides up and down in the slide groove, which is conducive to adjusting the height of the support plate. When the height of the support plate changes, the item placement space inside the refrigerator body will also change accordingly, so as to achieve the purpose of conveniently adjusting the item placement space to place items of different sizes.

Description

Technical Field

[0001] The invention relates to the technical field of refrigerators, in particular to a refrigerator based on a temperature and humidity sensor. Background Art

[0002] The smart refrigerator based on temperature and humidity sensors is a household appliance that integrates advanced technology. It has a built-in high-precision temperature and humidity sensor that can monitor the temperature and humidity changes inside the refrigerator in real time, ensuring that food is kept in the best environment and effectively extending the shelf life. Through the intelligent control system, the refrigerator can automatically adjust the refrigeration intensity and maintain constant and appropriate storage conditions. Whether it is vegetables, fruits, meat or drinks, they can all be properly preserved.

[0003] A Chinese patent with announcement number "CN218096745U" discloses a smart refrigerator, including a refrigerator body and a door. The refrigerator body is provided with a storage cavity for storing items with RFID tags. A compressor and a condensing unit for controlling the temperature in the storage cavity are provided at the bottom of the refrigerator body. A temperature and humidity sensor for monitoring the temperature and humidity in the storage cavity and an RFID antenna for identifying RFID tags are provided inside the refrigerator body. The refrigerator also includes a main control device for maintaining a constant temperature in the storage cavity, recording item information, and counting collection and return information.

[0004] However, the above structure still has some shortcomings. When placing relative objects into the refrigerator, since the sizes of different objects are different, the placement shelf for placing objects in the refrigerator cannot be adjusted, so that the placement space of the objects is in a specified state. If the objects are larger than the relative space on the placement shelf, the objects cannot be placed relatively, and the user needs to remove the placement shelf to increase the placement space for placement, which is very inconvenient. Summary of the invention

[0005] The object of the present invention is to provide a refrigerator based on a temperature and humidity sensor to solve the problem in the above background technology that it is difficult to adjust the space for placing items in the refrigerator.

[0006] To achieve the above-mentioned purpose, the present invention provides a refrigerator based on a temperature and humidity sensor, comprising a protective shell, a refrigerator body is installed on the top of the protective shell, a rotating shaft is rotatably connected to the bottom inner side of the refrigerator body, a screw is fixedly connected to the top of the rotating shaft, a connecting block is slidably connected to the inner wall of the refrigerator body, a first screw hole matching the screw is opened on the top of the connecting block, the screw is threadedly connected to the inner side of the first screw hole, a sliding groove matching the connecting block is slidably opened on the inner wall of the refrigerator body, the connecting block is slidably connected to the inner wall of the refrigerator body through the sliding groove, a slot is opened on one side of the connecting block, and the slot A support plate is inserted into the inner side, a square groove is opened on the top of the support plate, and an anti-skid pad is fixedly connected to the inner bottom end of the square groove, and the anti-skid pad covers the inner side of the square groove. The position of the top of the anti-skid pad is on the same horizontal line as the position of the top of the support plate. A cabinet door is hinged on the front side of the refrigerator body, and a door handle is installed on the front side of the cabinet door. Through the setting of the rotating shaft and the screw, when the screw is rotated, the rotating shaft can make the end of the screw rotate in place, and the connecting block will be pushed or pulled accordingly, so that the connecting block will move along the slide groove, so as to adjust the height of the support plate, thereby achieving relative placement space adjustment.

[0007] Furthermore, universal wheels are installed at the bottom of the protective shell. The universal wheels are installed on the four sides of the bottom of the protective shell near the corners. The thickness of the universal wheels is five centimeters. The setting of the universal wheels facilitates the movement of the protective shell, so that the position of the entire refrigerator can be adjusted later.

[0008] Furthermore, a limiting groove is opened on one side of the protective shell, and a ventilation hole is opened on one side of the limiting groove. The ventilation hole is communicated with the interior of the protective shell, and a limiting frame is clamped on one side of the limiting groove. The first dustproof plate and the second dustproof plate are fixedly connected to the inner wall of the limiting frame. Through the arrangement of the first dustproof plate and the second dustproof plate, the circulating wind can be effectively filtered to prevent a large amount of dust or pollutants from entering the protective shell and causing harm to it.

[0009] Furthermore, a card block is fixedly connected to the other side of the limit frame, and the card block is fixedly connected to the four sides of the other side of the limit frame near the corners. A card slot is opened on one side of the limit slot, and the card block is clamped to the inner side of the card slot. The limit frame is clamped to one side of the limit slot through the card slot and the card block. Through the setting of the card block, the shell can effectively clamp the limit frame points to avoid displacement, and it is also convenient for disassembly and maintenance at the later stage.

[0010] Furthermore, a strip opening is opened on the rear side of the protective shell, and the strip opening is communicated with the inner side of the vent. A filter plate is inserted into the inner side of the strip opening. The filter plate is located on the inner side of the vent. The position of the filter plate corresponds to the position of the second dustproof plate. By setting the filter plate, the circulating wind can be filtered for the second time, thereby further reducing the risk of a large amount of dust or pollutants entering the protective shell.

[0011] Furthermore, a sealing plate is fixedly connected to the rear side of the filter plate, a protrusion is fixedly connected to the rear side of the sealing plate, the protrusion covers the rear side of the sealing plate, a groove is opened on the inner wall of the vent, a magnet is fixedly connected to the inner side of the groove, the magnet covers the inner side of the groove, the rear side of the magnet is attached to the front side of the filter plate, and the front side of the filter plate is made of magnetic material. By setting the magnet, the position of the filter plate can be effectively adsorbed, thereby preventing it from being displaced.

[0012] Furthermore, a protective cover is threadedly connected to the front side of the protective shell, and the protective cover covers the front side of the protective shell. A rectangular opening is opened on the front side of the protective cover, and the rectangular opening is communicated with the inner side of the protective shell. A transparent glass is fixedly connected to the inner side of the rectangular opening, and the transparent glass covers the inner side of the rectangular opening. Through the opening of the rectangular opening, the user can directly view the inside of the protective shell through the transparent glass, which is beneficial for the user to observe the operating status of the equipment inside the protective shell at all times.

[0013] Furthermore, a second screw hole is provided on the front side of the protective cover, and the second screw holes penetrate the front sides of the protective cover and the protective shell. The inner side of the second screw hole is threadedly connected with a bolt, and the rear side of the bolt is threadedly connected to the inside of the protective shell through the screw hole. The protective cover is threadedly connected to the front side of the protective shell through the bolt and the second screw hole. By screwing in the bolt, the point position of the protective cover can be effectively fixed to prevent it from being displaced. It is also convenient for the user to open the protective cover later to maintain the equipment inside the protective shell.

[0014] Furthermore, a control module is installed on the front side of the box door, and a power supply module is installed inside the protective shell. The power supply modules inside the protective shell are connected to the control module, the temperature and humidity sensor body and the refrigerator body circuit. The control module is electrically connected to the refrigerator body and the temperature and humidity sensor body. Through the setting of the power supply module, the electrical equipment on the device can be effectively powered on, and through the setting of the control module, the electrical equipment on the device can be effectively controlled.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] Firstly, in the present invention, when in use, the items to be refrigerated are placed on the support plate, and the anti-skid pad can prevent the placed items from sliding, thereby effectively improving the stability of the item placement. When it is found that the item is large and difficult to place, the user can twist the screw, and the rotating shaft can make the end of the screw rotate in situ, and the connecting block will be pushed or pulled by the screw, so that the connecting block can slide up and down in the slide groove, thereby facilitating the adjustment of the height of the support plate. When the height of the support plate changes, the item placement space inside the refrigerator body will also change accordingly, thereby achieving the purpose of facilitating the adjustment of the item placement space to place items of different sizes.

[0017] Secondly, in the present invention, due to the opening of the vents, the inner side of the protective shell can be effectively ventilated and heat-dissipated, and the first dustproof plate and the second dustproof plate can effectively filter dust in the circulation space without hindering the air from flowing into the protective shell, and can also allow dust to enter the vents in a roundabout way, thereby making the filter plate and the air flow more closely contacted, which can effectively improve the filtering effect of dust or pollutants, thereby greatly reducing the harm caused by dust or pollutants entering the protective shell to electrical equipment. When it is necessary to clean or maintain it later, the limit frame can be removed by the snap-on principle, and the filter plate can be directly pulled out by the plug-in principle, thereby achieving the effect of facilitating later maintenance and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a schematic diagram of the inner structure of the refrigerator in the present invention;

[0020] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure of part A;

[0021] Figure 4 It is a cross-sectional structural schematic diagram of the present invention;

[0022] Figure 5 It is a schematic diagram of the protective cover structure in the present invention;

[0023] Figure 6 It is a schematic diagram of the inner structure of the vent in the present invention;

[0024] Figure 7 It is a schematic diagram of the limit frame structure in the present invention;

[0025] Figure 8 It is a schematic diagram of the filter plate structure in the present invention.

[0026] In the figure: 1. protective shell; 2. refrigerator body; 3. rotating shaft; 4. screw; 5. connecting block; 6. first screw hole; 7. slide groove; 8. slot; 9. support plate; 10. square groove; 11. anti-slip pad; 12. cabinet door; 13. door handle; 14. control module; 15. protective cover; 16. rectangular opening; 17. transparent glass; 18. second screw hole; 19. bolt; 20. limiting groove; 21. vent; 22. groove; 23. magnet; 24. strip opening; 25. filter plate; 26. sealing plate; 27. bump; 28. slot; 29. ​​limiting frame; 30. block; 31. first dustproof plate; 32. second dustproof plate; 33. universal wheel; 34. temperature and humidity sensor body. DETAILED DESCRIPTION

[0027] Example

[0028] See also Figure 1-Figure 8 In an embodiment of the present invention, a refrigerator based on a temperature and humidity sensor includes a protective shell 1, a refrigerator body 2 is installed on the top of the protective shell 1, a rotating shaft 3 is rotatably connected to the inner bottom end of the refrigerator body 2, a screw 4 is fixedly connected to the top of the rotating shaft 3, a connecting block 5 is slidably connected to the inner wall of the refrigerator body 2, a first screw hole 6 matching the screw 4 is opened at the top of the connecting block 5, the screw 4 is threadedly connected to the inner side of the first screw hole 6, a sliding groove 7 matching the connecting block 5 is slidably opened on the inner wall of the refrigerator body 2, the connecting block 5 is slidably connected to the inner wall of the refrigerator body 2 through the sliding groove 7, and a slot 8 is opened on one side of the connecting block 5 A support plate 9 is inserted into the inner side of the slot 8, a square groove 10 is opened at the top of the support plate 9, and an anti-skid pad 11 is fixedly connected to the inner bottom end of the square groove 10, and the anti-skid pad 11 covers the inner side of the square groove 10, and the position of the top of the anti-skid pad 11 is on the same horizontal line as the position of the top of the support plate 9. A door 12 is hinged on the front side of the refrigerator body 2, and a door handle 13 is installed on the front side of the door 12. When in use, due to the existence of the support plate 9, relative objects can be placed to prevent them from falling. Due to the existence of the anti-skid pad 11, the support of the anti-skid pad 11 can prevent the placed objects from sliding, which can effectively To improve the stability of the placement of items, when it is found that the item is large and difficult to place, the user can twist the screw 4, the shaft 3 can make the end of the screw 4 rotate in place, and the connecting block 5 will be pushed or pulled by the screw 4, so that the connecting block 5 can slide up and down in the slide groove 7, which is conducive to adjusting the height of the support plate 9. When the height of the support plate 9 changes, the item placement space inside the refrigerator body 2 will also change accordingly, so as to achieve the purpose of conveniently adjusting the item placement space to place items of different sizes. When the support plate 9 needs to be disassembled for maintenance or cleaning later, it can be directly It can be pulled out through the plug-in slot, thereby achieving the purpose of facilitating the subsequent maintenance and cleaning of the support plate 9. When the temperature and humidity sensor body 34 is installed, it is beneficial for the user to effectively regulate the temperature and humidity in the refrigerator body 2 so as to store items according to the needs. The slide groove 7 is opened to two centimeters. The small slide groove 7 can effectively reduce the loss of cold air, and the inner structure of the refrigerator body 2 is made of materials with low thermal conductivity, which can effectively reduce the thermal bridge effect to ensure the low temperature effect on the inside of the refrigerator body 2. The screw 4 and the first screw hole 6 structure are made of low-temperature and corrosion-resistant materials, which can ensure subsequent normal use.

[0029] See also Figure 1 A universal wheel 33 is installed at the bottom of the protective shell 1. The universal wheel 33 is installed on the four sides of the bottom of the protective shell 1 near the corners. The thickness of the universal wheel 33 is five centimeters. Due to the existence of the universal wheel 33, it is convenient for the user to push the entire refrigerator body 2 to move later, so as to relatively adjust the point position of the refrigerator body 2.

[0030] See also Figures 1 to 8 A limiting groove 20 is provided on one side of the protective shell 1, and a vent 21 is provided on one side of the limiting groove 20. The vent 21 communicates with the interior of the protective shell 1. A limiting frame 29 is clamped on one side of the limiting groove 20. The first dustproof plate 31 and the second dustproof plate 32 are fixedly connected to the inner wall of the limiting frame 29. A card block 30 is fixedly connected to the other side of the limiting frame 29. The card block 30 is fixedly connected to the four sides of the other side of the limiting frame 29. A card slot 28 is provided, and a card block 30 is connected to the inner side of the card slot 28. The limit frame 29 is connected to one side of the limit slot 20 through the card slot 28 and the card block 30. A strip opening 24 is provided on the rear side of the protective shell 1. The strip opening 24 is communicated with the inner side of the vent 21. A filter plate 25 is inserted into the inner side of the strip opening 24. The filter plate 25 is located on the inner side of the vent 21. The position of the filter plate 25 corresponds to the position of the second dustproof plate 32. Due to the opening of the vent 21, the vent 21 can be opened. The inner side of the protective shell 1 is effectively ventilated and heat-dissipated. The installation points of the first dustproof plate 31 and the second dustproof plate 32 are opposite, and a four-centimeter air circulation gap is left between the two. The first dustproof plate 31 and the second dustproof plate 32 can effectively filter dust in the circulation space without hindering the air from flowing into the protective shell 1, and can also allow dust to enter the vent 21 in a roundabout way, so that the filter plate 25 can be in closer contact with the air flow, which can effectively improve the filtering effect of dust or pollutants, thereby greatly reducing the harm caused by dust or pollutants entering the protective shell 1 to electrical equipment. When it is necessary to clean or maintain it relatively later, because the limit frame 29 is limited by the clamping method of the clamping block 30, the limit frame 29 can be directly removed by the clamping principle, and the filter plate 25 can also be directly pulled out by the plug-in principle, thereby achieving the effect of facilitating later maintenance and cleaning.

[0031] See also Figures 6 to 8 The rear side of the filter plate 25 is fixedly connected to a sealing plate 26, and the rear side of the sealing plate 26 is fixedly connected to a protrusion 27, and the protrusion 27 covers the rear side of the sealing plate 26. A groove 22 is opened on the inner wall of the vent 21, and a magnet 23 is fixedly connected to the inner side of the groove 22, and the magnet 23 covers the inner side of the groove 22. The rear side of the magnet 23 is attached to the front side of the filter plate 25, and the front side of the filter plate 25 is made of magnetic iron-absorbing material. Due to the presence of the magnet 23, under the adsorption of the magnet 23, the filter plate 25 can be effectively limited to avoid displacement, thereby effectively improving the stability of the point-to-point insertion of the filter plate 25.

[0032] See also Figure 1 and Figure 5A protective cover 15 is threadedly connected to the front side of the protective shell 1, and the protective cover 15 covers the front side of the protective shell 1. A rectangular opening 16 is opened on the front side of the protective cover 15, and the rectangular opening 16 is communicated with the inner side of the protective shell 1. A transparent glass 17 is fixedly connected to the inner side of the rectangular opening 16, and the transparent glass 17 covers the inner side of the rectangular opening 16. Due to the existence of the protective cover 15, the front side of the protective shell 1 can be effectively blocked and protected. At the same time, the user can also directly view the inner side of the protective shell 1 through the transparent glass 17 without opening the protective cover 15, which is beneficial for the user to observe the operating status of the equipment inside the protective shell 1 at all times, and can effectively improve the safety of the equipment installed inside the protective shell 1.

[0033] See also Figure 1 and Figure 5 A second screw hole 18 is provided on the front side of the protective cover 15, and the second screw hole 18 passes through the protective cover 15 and the front side of the protective shell 1. A bolt 19 is threadedly connected to the inner side of the second screw hole 18, and the rear side of the bolt 19 is threadedly connected to the inside of the protective shell 1 through the screw hole. The protective cover 15 is threadedly connected to the front side of the protective shell 1 through the bolt 19 and the second screw hole 18. Due to the existence of the bolt 19, the screwing of the bolt 19 can effectively fix the point position of the protective cover 15, thereby preventing the protective cover 15 from being displaced. When the protective cover 15 needs to be removed later, the bolt 19 can be directly screwed out of the second screw hole 18, which is also beneficial for the user to perform relative maintenance on the equipment inside the protective shell 1 later.

[0034] See also Figure 1 A control module 14 is installed on the front side of the door 12, and a power supply module is installed inside the protective shell 1. The power supply modules inside the protective shell 1 are connected to the control module 14, the temperature and humidity sensor body 34 and the refrigerator body 2. The control module 14 is electrically connected to the refrigerator body 2 and the temperature and humidity sensor body 34. Due to the existence of the power supply module, the electrical equipment on the device can be effectively powered on. The control module 14 can uniformly control the electrical equipment on the device. It is more convenient and quick to control the operation of the entire refrigerator through the control module 14, and it is less likely to make mistakes.

[0035] The working principle of the present invention is as follows: when in use, due to the existence of the support plate 9, relative objects can be placed to prevent them from falling; due to the existence of the anti-skid pad 11, the support of the anti-skid pad 11 can prevent the placed objects from sliding, and can effectively improve the stability of the point placement of objects; when it is found that the object is large and difficult to place, the user can twist the screw rod 4, and the rotating shaft 3 can make the end of the screw rod 4 rotate in place, and the connecting block 5 will be pushed or pulled by the screw rod 4, so that the connecting block 5 slides up and down in the slide groove 7, which is conducive to adjusting the height of the support plate 9; when the height of the support plate 9 changes, the object placement space inside the refrigerator body 2 will also change accordingly, so as to achieve the convenience of adjusting the object placement space for different sizes. The purpose of placing items is to disassemble the support plate 9 for maintenance or cleaning. When the support plate 9 needs to be disassembled for maintenance or cleaning at a later time, it can be directly pulled out through the plug-in slot, thereby achieving the purpose of facilitating the later maintenance and cleaning of the support plate 9. Due to the existence of the universal wheel 33, it is convenient for the user to push the entire refrigerator body 2 to move in the later time, so as to relatively adjust the point position of the refrigerator body 2. Due to the opening of the vent 21, the inner side of the protective shell 1 can be effectively ventilated and heat-dissipated. The installation points of the first dustproof plate 31 and the second dustproof plate 32 are opposite, and a four-centimeter air circulation gap is left between the two. The first dustproof plate 31 and the second dustproof plate 32 can effectively filter dust in the circulation space without hindering the air from flowing into the protective shell 1, and can also make the dust Dust enters the vent 21 in a roundabout way, so that the filter plate 25 can be in closer contact with the air flow, which can effectively improve the filtering effect of dust or pollutants, thereby greatly reducing the harm caused by dust or pollutants entering the protective shell 1 to the electrical equipment. When it is necessary to clean or maintain it relatively in the later stage, because the limit frame 29 is limited by the clamping method of the clamping block 30, the limit frame 29 can be directly removed by the clamping principle, and the filter plate 25 can also be directly pulled out by the plug-in principle, thereby achieving the effect of facilitating later maintenance and cleaning. Due to the existence of the magnet 23, the filter plate 25 can be effectively limited under the adsorption of the magnet 23 to avoid its displacement, thereby effectively improving the filter plate 25. The stability of point-to-point plug-in is achieved due to the presence of the protective cover 15, so that the front side of the protective shell 1 can be effectively blocked and protected. At the same time, the user can also directly view the inner side of the protective shell 1 through the transparent glass 17 without opening the protective cover 15, which is beneficial for the user to observe the operating status of the equipment inside the protective shell 1 at all times, and can effectively improve the safety of the equipment installed inside the protective shell 1. Due to the presence of the bolt 19, the screwing of the bolt 19 can effectively fix the point position of the protective cover 15, thereby avoiding the displacement of the protective cover 15. When the protective cover 15 needs to be removed later, the bolt 19 can be directly screwed out of the second screw hole 18, which is also beneficial for the user to perform relative maintenance on the equipment inside the protective shell 1 later.

Claims

1. A refrigerator based on a temperature and humidity sensor, characterized in that: The refrigerator body is provided with a protective shell, the top of which is provided with a refrigerator body, the inner bottom end of the refrigerator body is rotatably connected with a rotating shaft, the top end of the rotating shaft is fixedly connected with a screw, the inner wall of the refrigerator body is slidably connected with a connecting block, the top end of the connecting block is provided with a first screw hole matching with the screw, the screw is threadedly connected to the inner side of the first screw hole, the inner wall of the refrigerator body is slidably provided with a sliding groove matching with the connecting block, the connecting block is slidably connected to the inner wall of the refrigerator body through the sliding groove, a slot is provided on one side of the connecting block, a supporting plate is inserted into the inner side of the slot, a square slot is provided on the top end of the supporting plate, an anti-skid pad is fixedly connected to the inner bottom end of the square slot, the anti-skid pad covers the inner side of the square slot, the position of the top end of the anti-skid pad is on the same horizontal line as the position of the top end of the supporting plate, a cabinet door is hinged on the front side of the refrigerator body, and a door handle is installed on the front side of the cabinet door.

2. A refrigerator based on a temperature and humidity sensor according to claim 1, characterized in that: The bottom end of the protective shell is equipped with universal wheels, which are installed on four sides of the bottom end of the protective shell near the corners, and the thickness of the universal wheels is five centimeters.

3. A refrigerator based on a temperature and humidity sensor according to claim 1, characterized in that: A limiting groove is provided on one side of the protective shell, a vent is provided on one side of the limiting groove, the vent is communicated with the interior of the protective shell, a limiting frame is clamped on one side of the limiting groove, and a first dustproof plate and a second dustproof plate are fixedly connected to the inner wall of the limiting frame.

4. A refrigerator based on a temperature and humidity sensor according to claim 3, characterized in that: A card block is fixedly connected to the other side of the limit frame, and the card block is fixedly connected to the four sides of the other side of the limit frame near the corner. A card slot is opened on one side of the limit slot, and the card block is clamped on the inner side of the card slot. The limit frame is clamped to one side of the limit slot through the card slot and the card block.

5. A refrigerator based on a temperature and humidity sensor according to claim 3, characterized in that: A strip opening is provided on the rear side of the protective shell, the strip opening is communicated with the inner side of the ventilation opening, a filter plate is inserted into the inner side of the strip opening, the filter plate is located on the inner side of the ventilation opening, and the position of the filter plate corresponds to the position of the second dustproof plate.

6. A refrigerator based on a temperature and humidity sensor according to claim 5, characterized in that: A sealing plate is fixedly connected to the rear side of the filter plate, a protrusion is fixedly connected to the rear side of the sealing plate, the protrusion covers the rear side of the sealing plate, a groove is opened on the inner wall of the vent, a magnet is fixedly connected to the inner side of the groove, the magnet covers the inner side of the groove, the rear side of the magnet is attached to the front side of the filter plate, and the front side of the filter plate is made of magnetic material.

7. A refrigerator based on a temperature and humidity sensor according to claim 1, characterized in that: The front side of the protective shell is threadedly connected with a protective cover, the protective cover covers the front side of the protective shell, the front side of the protective cover is provided with a rectangular opening, the rectangular opening is communicated with the inner side of the protective shell, the inner side of the rectangular opening is fixedly connected with a transparent glass, the transparent glass covers the inner side of the rectangular opening.

8. A refrigerator based on a temperature and humidity sensor according to claim 7, characterized in that: A second screw hole is provided on the front side of the protective cover, and the second screw hole passes through the front side of the protective cover and the protective shell. A bolt is threadedly connected to the inner side of the second screw hole, and the rear side of the bolt is threadedly connected to the inside of the protective shell through the screw hole. The protective cover is threadedly connected to the front side of the protective shell through the bolt and the second screw hole.

9. A refrigerator based on a temperature and humidity sensor according to claim 1, characterized in that: A control module is installed on the front side of the door, and a power supply module is installed inside the protective shell. The power supply modules inside the protective shell are connected to the control module, the temperature and humidity sensor body and the refrigerator body circuit. The control module is electrically connected to the refrigerator body and the temperature and humidity sensor body.

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