Ice box cold storage system

Abstract

The present invention relates to an ice box cold storage system. The system includes an insulated box, a refrigeration component, a controller and a temperature sensing component. The refrigeration component is used to refrigerate the insulated box. The controller is connected to the refrigeration component. The temperature sensing component includes a first temperature sensing component and an installation box. The installation box is arranged in the insulated box. The installation box is provided with a phase change material. The first temperature sensing component is arranged in the installation box and is used to sense the temperature of the phase change material. The first temperature sensing component can send a first detection signal to the controller, and the controller controls the working state of the refrigeration component according to the first detection signal. In the above-mentioned ice box cold storage system, the temperature of the phase change material in the installation box is monitored by the first temperature sensing component, and the detected temperature is sent to the controller as a first detection signal. The controller controls the working state of the refrigeration component according to the first detection signal, so that the ice box can be accurately stored with cold, and excessive cold storage of the ice box is avoided, thereby improving efficiency and saving energy.

Description

Technical Field

[0001] The invention relates to cold chain technology, in particular to an ice box cold storage system. Background Art

[0002] Ice boxes used in the cold chain of fresh food, pharmaceuticals and biological products must be filled with cold water before use, so that the built-in phase change material changes from liquid to solid to complete the cold storage process. The traditional way is to put the ice box into a cold storage for freezing, which usually causes the phase change material in the ice box to be overcooled, so the ice box needs to be warmed up before use to remove the harmful supercooling, which not only affects efficiency but also increases costs. Summary of the invention

[0003] Based on this, it is necessary to provide an ice box cold storage system that accurately controls the cold filling temperature of the ice box.

[0004] An ice box cold storage system, wherein a phase change material is provided in the ice box, and characterized by comprising:

[0005] Incubator;

[0006] A refrigeration component, used for refrigerating the insulated box;

[0007] A controller, electrically connected to the refrigeration assembly;

[0008] The temperature sensing component includes a first temperature sensing element and an installation box, wherein the installation box is arranged in the heat preservation box, and a phase change material is arranged in the installation box. The first temperature sensing element is arranged in the installation box and is used to sense the temperature of the phase change material. The first temperature sensing element can send a first detection signal to the controller, and the controller controls the working state of the refrigeration component according to the first detection signal.

[0009] In the above-mentioned ice box cold storage system, since the phase change material built into the installation box is the same as the phase change material in the ice box, the ice box and the installation box are cooled and cooled by the refrigeration component at the same time. The temperature of the phase change material in the installation box is monitored by the first temperature sensing element, and the detected temperature is sent to the controller as a first detection signal. The controller controls the working state of the refrigeration component according to the first detection signal, so that the ice box can be accurately stored in cold, avoiding excessive cold storage in the ice box, improving efficiency and saving energy.

[0010] In one embodiment, a second temperature sensing element is further included. The second temperature sensing element is arranged in the heat preservation box and is used to sense the temperature inside the heat preservation box. The second temperature sensing element can send a second detection signal to the controller, and the controller controls the working state of the refrigeration component according to the second detection signal.

[0011] In one embodiment, the controller is set with a second preset value, and when the second temperature sensing element detects that the temperature in the insulated box reaches the second preset value, the controller controls the refrigeration component to turn off.

[0012] In one embodiment, the controller is set with a third preset value. When the controller receives the first detection signal, the controller controls the second temperature sensing component to sense the temperature inside the insulation box. The controller controls the refrigeration component to turn on or off according to the second detection signal to control the temperature inside the insulation box at the third preset value.

[0013] In one of the embodiments, a heating component is further included, and the heating component is arranged in the installation box and is used to heat the phase change material.

[0014] In one embodiment, the heating component includes a heater and a third temperature sensing element. The heater is connected to the controller and is disposed in the installation box. The third temperature sensing element is disposed in the insulation box and is used to sense the temperature inside the insulation box. The third temperature sensing element can send a third detection signal to the controller, and the controller controls the working state of the heater according to the third detection signal.

[0015] In one embodiment, the controller is set with a fourth preset value, and when the third temperature sensing element detects that the temperature in the installation box reaches the fourth preset value, the controller controls the heater to turn off.

[0016] In one of the embodiments, the refrigeration component includes an evaporator air cooler, a refrigeration pipeline and a refrigerator, the evaporator air cooler is arranged in the insulation box, and the refrigeration pipeline connects the evaporator air cooler and the refrigerator.

[0017] In one embodiment, the temperature sensing components are provided in plurality, and the plurality of temperature sensing components are installed in the thermal insulation box at intervals.

[0018] In one embodiment, a display component is also included, and the display component is used to display the temperature inside the insulation box and the installation box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the structure of an ice box cold storage system according to one embodiment. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] See also Figure 1, an ice box cold storage system 10 of one embodiment is used to store cold in an ice box and freeze the phase change material in the ice box. The frozen ice box will be used to refrigerate the target items in cold chain transportation. The heat-insulating ice box cold storage system 10 includes an insulation box 100, a refrigeration component 200, a controller 300 and a temperature sensing component 400. The insulation box 100 is provided with a accommodating cavity inside, and the ice box is placed in the insulation box 100. The refrigeration component 200 is used to refrigerate the insulation box 100 and lower the temperature of the insulation box 100 to freeze the ice box. The controller 300 is connected to the refrigeration component 200 to control the refrigeration component 200. The temperature sensing component 400 includes a first temperature sensing component 410 and an installation box 420. The installation box 420 is arranged in the insulation box 100 and is refrigerated by the refrigeration component 200 at the same time as the ice box. The installation box 420 is provided with a containing cavity inside, and a phase change material is also provided inside the installation box 420. The phase change material in the installation box 420 is the same as the phase change material in the ice box. The first temperature sensing element 410 is provided in the installation box 420, and is used to sense the temperature of the phase change material in the installation box 420. The controller 300 is set with a first preset value. After the first temperature sensing element 410 senses that the temperature of the phase change material in the installation box 420 drops to the first preset value, the first temperature sensing element 410 will send a first detection signal to the controller 300, and the controller 300 controls the refrigeration component 200 to stop refrigeration. It should be noted that the first preset value can be set to a specific phase change temperature value, or the first preset value can be set to a temperature range lower than the phase change temperature to avoid incomplete cooling of the ice box, for example, 2°C-3°C lower than the phase change temperature. The first preset value can be freely set as needed.

[0024] In the above-mentioned ice box cold storage system 10, since the phase change material built into the installation box 420 is the same as the phase change material in the ice box, the ice box and the installation box 420 are cooled and cooled by the refrigeration component 200 at the same time. By monitoring the temperature of the phase change material in the installation box 420, when it is detected that the temperature of the phase change material in the installation box 420 reaches a first preset value, that is, lower than the phase change temperature, the refrigeration component 200 stops refrigeration, and then the ice box is taken out for use. The ice box can be accurately stored in cold, and excessive cold storage will not be caused to the ice box, thereby improving efficiency and saving energy.

[0025] In one embodiment, the installation box 420 and the insulation box 100 are made of the same material, which can provide the same storage environment for the insulation box 100 and the phase change material in the installation box 420, thereby reducing the influence of different materials on the heat transfer efficiency. The installation box 420 and the insulation box 100 are both provided with an opening on the top wall, and the opening is hinged with a cover. In other embodiments, openings can also be provided on the side walls of the installation box 420 and the insulation box 100, and a door body can be hinged on the side walls to realize the opening or closing of the installation box 420 and the insulation box 100.

[0026] In one embodiment, the first temperature sensing member 410 is a temperature sensor.

[0027] In one embodiment, since the temperature in the insulated box 100 (i.e., the ambient temperature) is 15°C to 20°C lower than the phase change temperature of the phase change material, the ice box can be fully refrigerated. Further lowering the ambient temperature will cause higher energy consumption, and continuous cooling is unnecessary. Therefore, the ice box cold storage system 10 is also provided with a second temperature sensing element 500. The second temperature sensing element 500 is provided in the insulated box 100 and is used to sense the temperature in the insulated box 100. The second temperature sensing element 500 can send a second detection signal to the controller 300, and the controller 300 controls the working state of the refrigeration assembly 200 according to the second detection signal.

[0028] The working states of the refrigeration assembly 200 include a cold storage mode and a constant temperature standby mode.

[0029] In the cold storage mode, the refrigeration component 200 works to continuously cool and cool the insulated box 100, and the controller 300 is set with a second preset value, which is set to be between 15°C and 20°C lower than the phase change temperature. It can be any specific value within this range, or any numerical interval such as 17°C to 19°C, and any value can be set between 17°C and 29°C. When the second temperature sensing element 500 detects that the temperature in the insulated box 100 reaches the temperature range of the second preset value, the second temperature sensing element 500 sends a second detection signal to the controller 300, and the controller 300 controls the refrigeration component 200 to turn on or off, so that the temperature in the insulated box 100 is maintained at 15°C to 20°C lower than the phase change point temperature of the phase change material in the ice box. At this temperature, the temperature of the phase change material in the ice box continues to cool down after releasing heat, and the temperature of the phase change material in the temperature sensing module also cools down synchronously. Avoid excessive energy waste caused by the temperature in the insulated box 100 being too low. It should be noted that the second preset value can also be freely set as needed. Specifically, the second temperature sensing member 500 is a temperature sensor.

[0030] Normally, the ice box will not be used immediately after the cold storage is completed, but it will continue to be refrigerated until it is needed. In order to be able to store the ice box at a constant temperature, the ambient temperature is controlled below the phase change temperature of the phase change material in the ice box. It should be noted that in order to save energy and avoid excessive cold charging, the ambient temperature can be 2°C to 3°C lower than the phase change temperature. Therefore, the refrigeration component 200 sets a constant temperature standby mode for implementation. When the controller 300 detects the first detection signal of the first temperature sensing component 410, the controller 300 controls the refrigeration component 200 to switch to a constant temperature standby mode. Specifically, the controller 300 is also set with a third preset value, and the range of the third preset value is set to be between 2°C and 3°C lower than the phase change temperature, which can be any specific value within this range, or any numerical range. When the controller 300 detects the first detection signal of the first temperature sensing component 410, the controller 300 will control the second temperature sensing component 500 to sense the temperature in the temperature box. When the ambient temperature is lower than the third preset value, the second temperature sensing element 500 feeds back the detected temperature result to the controller 300, and the controller 300 controls the refrigeration component 200 to work for refrigeration. When the ambient temperature is higher than the third preset value, the second temperature sensing element 500 feeds back the detected temperature result to the controller 300, and the controller 300 controls the refrigeration component 200 to stop working, thereby controlling the ambient temperature within the third preset value range. It should be noted that the switch temperature difference of the refrigeration component 200 can be set to ±1°C, and the third preset value can also be freely set as needed.

[0031] In one embodiment, the controller 300 includes a single chip microcomputer and a control circuit. The single chip microcomputer is preset with programs corresponding to the cold storage mode and the constant temperature standby mode, and the control circuit is used to control the opening or closing of the refrigeration assembly 200.

[0032] In one embodiment, the refrigeration assembly 200 includes an evaporator air cooler 210, a refrigeration pipeline 220, and a refrigerator 230. The evaporator air cooler 210 is arranged in the thermal insulation box 100, and the refrigerator 230 is placed outside the installation box 420. The refrigeration pipeline 220 connects the evaporator air cooler 210 and the refrigerator 230. The refrigerator 230 transports the low-temperature and low-pressure liquid refrigerant to one side of the evaporator air cooler 210 through the refrigeration pipeline 220 for vaporization and heat absorption, so that the refrigerant on the other side of the evaporator air cooler 210 is cooled, and finally the cold air is input into the thermal insulation box 100.

[0033] In one embodiment, in order to make the phase state of the phase change material in the installation box 420 and the phase state of the phase change material in the ice box change as synchronously as possible, the ice box cold storage system 10 also includes a heating component 600. The heating component 600 is arranged in the installation box 420, and is used to heat the phase change material in the installation box 420. Every time the ice box cold storage system 10 stores cold for a newly placed ice box, the heating component 600 is automatically turned on when the refrigeration component 200 is turned on, so that the heating component 600 raises the phase change material in the installation box 420 to the ambient temperature, so that it changes to the same liquid state as the phase change material in the ice box. In this way, the ice box and the box change material in the installation box 420 change synchronously to the greatest extent, and the temperature of the ice box phase change material can be more accurately judged according to the temperature of the phase change material in the installation box 420, thereby more accurately controlling the temperature of the ice box cold storage.

[0034] In one embodiment, the heating assembly 600 includes a heater 610 and a third temperature sensing element 620. The heater 610 is connected to the controller 300 and is disposed in the installation box 420. The third temperature sensing element 620 is disposed in the insulation box 100 for sensing the temperature in the insulation box 100. The third temperature sensing element 620 sends a detection signal to the controller 300, and the controller 300 controls the working state of the heater 610 according to the detection signal. Furthermore, the controller 300 is set with a fourth preset value. When the temperature in the installation box 420 reaches the fourth preset value, the controller 300 controls the heater 610 to turn off. The fourth preset value can be set to a normal temperature such as 25°C, or it can be set to a numerical range such as 24°C to 27°C, and any value can be set between 24°C and 27°C. Or it can be freely set according to the ambient temperature.

[0035] In one embodiment, a plurality of temperature sensing components 400 may be provided as needed, and different phase change materials are built into the installation box 420 corresponding to each temperature sensing component 400. The cold storage number of the corresponding phase change material is preset in the single chip microcomputer. When storing cold in ice boxes of different specifications, the corresponding cold storage mode may be selected as needed, thereby improving the applicability of the ice box cold storage system 10.

[0036] In one embodiment, the ice box cold storage system 10 further includes a display component (not shown), which is used to display the temperature in the insulation box 100 and the installation box 420. Further, the display component includes a touch screen, and control instructions can be issued through the touch screen to operate the ice box cold storage system 10.

[0037] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An ice box cold storage system, characterized in that: include: Incubator; A refrigeration component, used for refrigerating the insulated box; A controller, electrically connected to the refrigeration assembly; A temperature sensing component, comprising a first temperature sensing element and an installation box, wherein the installation box is arranged in the heat preservation box, a phase change material is arranged in the installation box, the first temperature sensing element is arranged in the installation box, and is used to sense the temperature of the phase change material, the first temperature sensing element can send a first detection signal to the controller, and the controller controls the working state of the refrigeration component according to the first detection signal; The ice box is provided with a phase change material; The phase change material in the installation box is the same as the phase change material in the ice box.

2. The ice box cold storage system according to claim 1, characterized in that: It also includes a second temperature sensing element, which is arranged in the heat preservation box and is used to sense the temperature inside the heat preservation box. The second temperature sensing element can send a second detection signal to the controller, and the controller controls the working state of the refrigeration component according to the second detection signal.

3. The ice box cold storage system according to claim 2, characterized in that: The controller is set with a second preset value. When the second temperature sensing element detects that the temperature in the insulated box reaches the second preset value, the controller controls the refrigeration component to be turned off.

4. The ice box cold storage system according to claim 2, characterized in that: The controller is set with a third preset value. When the controller receives the first detection signal, the controller controls the second temperature sensing component to sense the temperature in the insulation box. The controller controls the refrigeration component to turn on or off according to the second detection signal to control the temperature in the insulation box to the third preset value.

5. The ice box cold storage system according to claim 1, characterized in that: It also includes a heating component, which is arranged in the installation box and is used to heat the phase change material.

6. The ice box cold storage system according to claim 5, characterized in that: The heating assembly includes a heater and a third temperature sensing component. The heater is connected to the controller and is arranged in the installation box. The third temperature sensing component is arranged in the insulation box and is used to sense the temperature inside the insulation box. The third temperature sensing component can send a third detection signal to the controller, and the controller controls the working state of the heater according to the third detection signal.

7. The ice box cold storage system according to claim 6, characterized in that: The controller is set with a fourth preset value. When the third temperature sensing element detects that the temperature in the installation box reaches the fourth preset value, the controller controls the heater to be turned off.

8. The ice box cold storage system according to claim 1, characterized in that: The refrigeration assembly includes an evaporator air cooler, a refrigeration pipeline and a refrigerator. The evaporator air cooler is arranged in the heat preservation box, and the refrigeration pipeline connects the evaporator air cooler and the refrigerator.

9. The ice box cold storage system according to claim 1, characterized in that: There are multiple temperature sensing components, and the multiple temperature sensing components are installed in the thermal insulation box at intervals.

10. The ice box cold storage system according to claim 1, characterized in that: It also includes a display component, which is used to display the temperature in the insulation box and the installation box.

Images