Intelligent fresh air cold storage and control method thereof

Abstract

The present invention discloses an intelligent fresh air cold storage and a control method thereof, including a storage body, a fresh air system, a refrigeration system and a fresh air cold air storage system. The fresh air system includes a fresh air outlet, a fresh air system chamber and a fresh air pipeline. The refrigeration system includes an air cooler, an expansion valve, a condenser and a compressor unit. The fresh air cold air storage system includes a storage chamber air inlet, a storage chamber evaporator, a solenoid valve, a fresh air cold air storage chamber and a storage chamber air outlet. The fresh air system, the refrigeration system and the fresh air cold air storage system are jointly equipped with an electric control box. An intelligent system is provided in the electric control box, and different fresh air time for different products is preset in the intelligent system. When in use, the fresh air time and the fresh air cold air storage time can be automatically determined by inputting the product, and the fresh air time and the fresh air cold air storage time can be freely set according to needs, which is very convenient for users to use.

Description

Technical Field

[0001] The present invention relates to the field of refrigeration, and in particular to an intelligent fresh air cold storage and a control method thereof. Background Art

[0002] The cold storage implements the national standard GBT / 50072-2010. The main components are composed of compressors, condensing units, air coolers, thermal expansion valves, cold storage lights, cold storage doors, pipes, electric control boxes and other components. At present, the main products should be fixed cold storage and portable cold storage. The electricity use is mainly to use conventional power supply access and solar energy to supplement the power use, especially the hybrid application of solar energy new energy and conventional power. Often, the area of ​​solar panels that can be placed in the cold storage cannot directly provide power to the cold storage. A cold storage with a fresh air system is disclosed in the patent document CN 111811187 A. This patent document is provided with a ventilation pipe, an exhaust fan, a reset mechanism, an electromagnet, a first connecting column, a second connecting column, a limit block, a support frame and a sealing plate. When it is necessary to ventilate the inside of the cold storage body, the electromagnet is turned on, and the distance between the left and right sealing plates is reduced under the action of the reset mechanism, the first connecting column, the second connecting column and the limit block, and then the exhaust fan is turned on to accelerate the air circulation inside and outside the cold storage body through the exhaust fan, so as to facilitate the user to ventilate the inside of the cold storage body. This patent document relies on simple mechanical transmission and cannot set the ventilation time according to the product intelligence. Moreover, the ventilation pipe is connected to the outside air without buffer space. Once the outside temperature is too high and directly replaced into the cold storage, it will affect the product quality. Summary of the invention

[0003] In view of the above problems, the present invention provides a cold storage capable of intelligently exchanging fresh air and a control method thereof.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] The intelligent fresh air cold storage includes a storage body, a cold storage door, a fresh air system, a refrigeration system and a fresh air cold air storage system. The cold storage door is located at the lower left front side of the storage body and is hinged to the storage body. A wind pressure balance window is provided on the upper left side of the storage body, and a cold storage light is provided on the lower top wall of the storage body. The fresh air system, the refrigeration system and the fresh air cold air storage system are equipped with an electric control box. The electric control box is located at the lower right side of the outer wall of the front side of the storage body. An intelligent system is pre-installed inside the electric control box. The intelligent system has different fresh air times and fresh air cold air storage times for different products preset, and can be freely set according to product needs. The fresh air system includes a fresh air outlet, a fresh air system chamber and a fresh air duct. The fresh air system is located outside the storage body. The fresh air system chamber is connected to the outside through the fresh air outlet, and it is connected to the inside of the storage body through the fresh air duct. The refrigeration system includes an air cooler, an expansion valve, a condenser and a compressor unit. The air cooler includes a fan and an evaporator located inside the warehouse. The condenser and the compressor unit are located outside the warehouse and are connected to the air cooler through a refrigeration pipeline via an expansion valve. The fresh air cold air storage system includes a storage room air inlet located inside the warehouse, a storage room evaporator, a solenoid valve, a fresh air cold air storage room and a storage room air outlet. The fresh air cold air storage room is connected to the outside through the storage room air inlet, and is connected to the inside of the warehouse through the storage room air outlet. The storage room evaporator of the fresh air cold air storage system is located at the upper part of the fresh air cold air storage room near the storage room air inlet. The storage room evaporator is connected to the refrigeration pipeline through a solenoid valve. The solenoid valve is located between the expansion valve and the air cooler on the refrigeration pipeline.

[0006] Furthermore, the fresh air system chamber is located on the left side of the upper top wall of the storage body, the fresh air outlet is located on the left side of the fresh air system chamber, and the fresh air pipeline is located on the right side of the fresh air system chamber.

[0007] Furthermore, the fresh air outlet is inclined downward, a filter is provided at the air outlet, the fresh air duct is in an inverted L shape, the horizontal end of the fresh air duct is connected to the fresh air system chamber, and the vertical end of the fresh air duct is connected to the interior of the warehouse.

[0008] Furthermore, the air cooler is located on the right side of the interior of the warehouse, with the fresh air system on its left side and the fresh air cold air storage room on the right side. The fan and evaporator in the air cooler are arranged left and right.

[0009] Furthermore, the fresh air and cold air storage room is located on the upper part of the inner wall on the right side of the storage body, and the air inlet of the storage room is located on the right side of the fresh air and cold air storage room. It passes through the fresh air and cold air storage room and the right side wall of the storage body respectively and is connected with the outside world. A filter is provided at the air inlet of the storage room, and the air outlet of the storage room is located at the bottom of the fresh air and cold air storage room and is connected with the inside of the storage body.

[0010] Furthermore, the condenser and the compressor unit are located on the outer side of the lower right part of the storage body, wherein the condenser is located on the top of the compressor unit.

[0011] Furthermore, the refrigeration pipeline is led upward from the upper part of the condenser, passes through the right side wall of the storage body from above the fresh air cold air storage room, and is connected to the air cooler.

[0012] A control method for an intelligent fresh air cold storage as described in any of the above items: the intelligent system pre-installed in the electric control box can set different fresh air time and fresh air cold air storage time according to the different products to be stored. The intelligent system pre-installed in the electric control box can input the fresh air time and fresh air cold air storage time in advance according to the product. When it is needed, only the product name is input to automatically match the time input in advance. During the fresh air process, the fresh air system continuously runs to exhaust air to reduce the air pressure inside the cold storage, and the air is continuously sucked in through the air inlet of the storage room to balance the air pressure. The air cooler in the refrigeration system continuously runs to accelerate the fresh air process inside the cold storage.

[0013] The beneficial effects of the present invention are as follows: the present invention has a fresh air cold air storage room, which can buffer cold air when the cold storage is fresh aired, so as to avoid directly exchanging hot air into the cold storage when the external environment temperature of the cold storage is too high. Product information can be entered in advance in the intelligent system of the electric control box, and different fresh air exchange times can be set according to different stored products. The electric control box controls the fresh air exchange system, the refrigeration system and the fresh air cold air storage system to operate in coordination, thereby ensuring the fresh air exchange effect and the stability of the temperature in the cold storage to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The figure is a schematic diagram of the structural principle of an embodiment of the present invention. DETAILED DESCRIPTION

[0015] One implementation mode of the present invention is as follows Figure 1 As shown, it includes a storage body 1, a cold storage door 2, a cold storage lamp 7, a wind pressure balance window 3, an electric control box 18, a fresh air system, a refrigeration system and a fresh air cold air storage system. The wind pressure balance window 3 is located at the upper left part of the storage body 1. The wind pressure balance window 3 can prevent the indoor pressure of the cold storage from decreasing due to the cold air when the cold storage drops from high temperature to low temperature, thereby causing the cold room insulation layer to sink and deform due to the high outdoor pressure in the cold storage, and the cold room door to be difficult to open due to the unequal internal and external pressures. The electric control box 18 is located at the lower right part of the outer wall of the front side of the storage body 1, the cold storage lamp 7 is located on the top wall of the cold storage to provide lighting, and the cold storage door 2 is located at the lower left part of the front side of the storage body 1 and is hinged to the storage body 1.

[0016] The fresh air system includes a fresh air outlet 4, a fresh air system chamber 5 and a fresh air duct 6, and the fresh air system is located on the left side of the upper top wall of the storage body 1. The fresh air system chamber 5 is connected to the outside through the fresh air outlet 4, and is connected to the inside of the storage body 1 through the fresh air duct 6. The fresh air system chamber 5 is located on the left side of the upper top wall of the storage body 1, and has a fan inside. The fresh air outlet 4 is located on the left side of the fresh air system chamber 5 and is inclined downward to prevent rainwater from entering. A filter is also provided at the fresh air outlet 4 to block foreign objects such as leaves and animals. The fresh air duct 6 is in an inverted L shape and is located on the right side of the fresh air system chamber 5. The lateral end of the fresh air duct 6 is connected to the fresh air system chamber 5, and the vertical end of the fresh air duct 6 is connected to the inside of the storage body 1.

[0017] The fresh air cold air storage system includes a storage room air inlet 12, a storage room evaporator 11, a solenoid valve 9, a fresh air cold air storage room 13 and a storage room air outlet 14, which is located on the upper part of the right inner wall of the storage body 1. The storage room air inlet 12 is located on the right side of the fresh air cold air storage room 13, and it passes through the fresh air cold air storage room 13 and the right side wall of the storage body 1 to communicate with the outside world. A filter is provided at the storage room air inlet 12, and the storage room air outlet 14 is located at the bottom of the fresh air cold air storage room 13 and communicates with the inside of the storage body 1. The fresh air cold air storage system can avoid the problem of product damage caused by directly replacing the product in the refrigerator when the ambient temperature outside the cold storage is too high.

[0018] The refrigeration system includes an air cooler 8, an expansion valve 10, a condenser 16, a refrigeration electric control box 18 and a compressor unit 17. The air cooler 8 includes a fan and an evaporator arranged left and right and located on the right side of the interior of the storage body 1, with the fresh air system on the left and the fresh air cold air storage room 13 on the right. The condenser 16 and the compressor unit 17 are arranged up and down and located outside the storage body 1 and connected to the air cooler 8 through the expansion valve 10 via the refrigeration pipeline 15. The refrigeration pipeline 15 is led upward from the upper part of the condenser 16, and is connected to the air cooler 8 through the right side wall of the storage body 1 from above the fresh air cold air storage room 13. The storage room evaporator 11 is connected to the refrigeration pipeline 15 through the solenoid valve 9, and the solenoid valve 9 is located between the expansion valve 10 and the air cooler 8 on the refrigeration pipeline 15.

[0019] The fresh air system, the refrigeration system and the fresh air cold air storage system are equipped with an electric control box 18. The electric control box 18 is equipped with an intelligent system, which presets different fresh air time and fresh air cold air storage time for different products and can be freely set according to product needs.

[0020] The use of the present invention is as follows: after the cold storage is installed, the air in the refrigeration system pipeline is evacuated and then filled with refrigerant. According to the needs of the product, the intelligent system of the electric control box 18 is input to refrigerate for 1 hour, and the fresh air is replaced for 20 minutes after the refrigeration is completed. First, the cold storage uses the cold air machine 8 to start conventional refrigeration. After 0.5 hours, the solenoid valve 9 is opened, and the storage room evaporator 11 in the fresh air cold air storage room 13 starts to refrigerate and store cold air. After 0.5 hours, the fresh air replacement system is turned on to replace the fresh air. During the fresh air replacement process, as the air pressure in the cold storage changes, the cold air in the fresh air cold air storage room 13 continuously enters the cold storage from the storage room air outlet 14, and the cold air machine 8 rotates to speed up the wind speed, continuously pushing the air in the cold storage to be discharged from the fresh air replacement system. At the same time, the outside air also continuously enters the fresh air cold air storage room 13 from the storage room air inlet 12. After entering, the air is cooled down by the storage room evaporator 11 and then the cold air entering the cold storage is continuously replenished, and it is closed after 20 minutes. Moreover, if information is reserved in the intelligent system, the product only needs to be input to automatically determine the fresh air replacement time and the fresh air cold air storage time when used, which is convenient for users.

[0021] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. An intelligent fresh air cold storage, comprising a storage body (1), a cold storage door (2), a fresh air system, a refrigeration system and a fresh air cold air storage system, wherein the cold storage door (2) is located at the lower left front side of the storage body (1) and is hinged to the storage body (1), a wind pressure balance window (3) is provided at the upper left side of the storage body (1), and a cold storage lamp (7) is provided on the lower top wall of the storage body (1), characterized in that: The fresh air system, the refrigeration system and the fresh air cold air storage system are equipped with an electric control box (18) which is located at the lower right part of the front outer wall of the storage body (1) and has an intelligent system pre-installed therein. Different fresh air times and fresh air cold air storage times for different products are preset in the intelligent system. The fresh air exchange system comprises a fresh air exchange outlet (4), a fresh air exchange system chamber (5) and a fresh air exchange pipeline (6); the fresh air exchange system is located outside the storage body (1); the fresh air exchange system chamber (5) is connected to the outside through the fresh air exchange outlet (4), and is connected to the inside of the storage body (1) through the fresh air exchange pipeline (6); The refrigeration system comprises an air cooler (8), an expansion valve (10), a condenser (16) and a compressor unit (17); the air cooler (8) comprises a fan and an evaporator located inside the storage body (1); the condenser (16) and the compressor unit (17) are located outside the storage body (1) and are connected to the air cooler (8) through a refrigeration pipeline (15) and the expansion valve (10); The fresh air cold air storage system comprises a storage chamber air inlet (12) located inside a storage body (1), a storage chamber evaporator (11), a solenoid valve (9), a fresh air cold air storage chamber (13) and a storage chamber air outlet (14); the fresh air cold air storage chamber (13) is connected to the outside through the storage chamber air inlet (12), and is connected to the inside of the storage body (1) through the storage chamber air outlet (14); The storage chamber evaporator (11) of the fresh air cold air storage system is located at the upper part of the fresh air cold air storage chamber (13) near the storage chamber air inlet (12), and the storage chamber evaporator (11) is connected to the refrigeration pipeline (15) through the solenoid valve (9), and the solenoid valve (9) is located between the expansion valve (10) and the air cooler (8) on the refrigeration pipeline (15).

2. The intelligent fresh air cold storage according to claim 1 is characterized in that: The fresh air system chamber (5) is located on the left side of the upper top wall of the storage body (1), the fresh air outlet (4) is located on the left side of the fresh air system chamber (5), and the fresh air pipeline (6) is located on the right side of the fresh air system chamber (5).

3. The intelligent fresh air cold storage according to claim 1 is characterized in that: The fresh air outlet (4) is inclined downward, and a filter is provided at the air outlet. The fresh air duct (6) is in an inverted L shape, and the horizontal end of the fresh air duct (6) is connected to the fresh air system chamber (5), and the vertical end of the fresh air duct (6) is connected to the interior of the storage body (1).

4. The intelligent fresh air cold storage according to claim 1 is characterized in that: The air cooler (8) is located on the right side inside the storage body (1), with the fresh air system on its left side and the fresh air cold air storage room (13) on its right side. The fan and evaporator in the air cooler (8) are arranged on the left and right sides.

5. The intelligent fresh air cold storage according to claim 1 is characterized in that: The fresh air cold air storage chamber (13) is located at the upper part of the right inner wall of the storage body (1); the storage chamber air inlet (12) is located on the right side of the fresh air cold air storage chamber (13), and is connected to the outside through the fresh air cold air storage chamber (13) and the right side wall of the storage body (1), respectively; a filter is provided at the storage chamber air inlet (12); and the storage chamber air outlet (14) is located at the bottom of the fresh air cold air storage chamber (13) and is connected to the inside of the storage body (1).

6. The intelligent fresh air cold storage according to claim 1 is characterized in that: The condenser (16) and the compressor unit (17) are located on the outer side of the lower right part of the storage body (1), wherein the condenser (16) is located on the top of the compressor unit (17).

7. The intelligent fresh air cold storage according to claim 1 is characterized in that: The refrigeration pipeline (15) is led upward from the upper part of the condenser (16), passes through the right side wall of the storage body (1) from above the fresh air cold air storage room (13), and is connected to the cold air machine (8).

8. A control method for the intelligent fresh air cold storage as claimed in claim 1, characterized in that: The pre-installed intelligent system in the electric control box can set different fresh air replacement time and fresh air cold air storage time according to the different products to be stored; The intelligent system pre-installed in the electric control box can input the fresh air exchange time and fresh air cold air storage time in advance according to the product. When it is needed, just enter the product name to automatically match the time entered in advance; During the fresh air exchange process, the fresh air exchange system continuously runs to discharge air to reduce the air pressure inside the cold storage, and the air is continuously sucked in through the air inlet of the storage room to balance the air pressure. The air cooler in the refrigeration system continuously runs to accelerate the fresh air exchange process inside the cold storage.

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