Refrigeration appliance

Abstract

The application belongs to the technical field of refrigeration, and particularly relates to a refrigeration equipment. The application aims to solve the problem of high temperature at the position of a glass door in the related art. The refrigeration equipment comprises a refrigeration cabinet body, a door body, an evaporator, a fan assembly and a wind guide piece. The wind guide piece is sleeved on the outer periphery of the refrigeration cabinet body near an opening, and has a ring-shaped wind guide channel. The fan assembly discharges cold air generated after being cooled by the evaporator into the wind guide channel, and sucks the cold air in the wind guide channel into the evaporator again. The application can better control the air volume at the position of the glass door, effectively improve the flow speed of the cold air in the wind guide channel, reduce the temperature at the position of the glass door, and solve the problem of high temperature at the position of the glass door in the related art. Meanwhile, since the wind guide channel of the application is ring-shaped, the cold air can circulate, so that the temperature uniformity at the position of the glass door is realized, the temperature balance at the position of the glass door is ensured, and the temperature uniformity of the refrigeration equipment is further ensured.

Description

Technical Field

[0001] This application belongs to the field of refrigeration technology, specifically relating to a refrigeration device. Background Technology

[0002] Refrigeration equipment, such as refrigerators or freezers, is a device that preserves items at low temperatures. It locks cold air in a certain space to achieve a cooling effect and extend the shelf life of items for a long time.

[0003] Taking a pharmaceutical refrigerator as an example, pharmaceutical refrigerators are mainly used for the refrigeration and transportation of medicines, biological agents, vaccines, etc., and the temperature inside the refrigerator is crucial. Since the refrigerator is placed indoors, if the indoor temperature is too high, hot air will enter the refrigerator through the glass door; or, if the door is opened for even a minute (the time used for storing and retrieving items), the temperature inside the refrigerator will fluctuate drastically. Related technologies often incorporate fans inside pharmaceutical refrigerators.

[0004] However, the above methods cannot effectively control the airflow at the glass door location, resulting in a higher temperature at the glass door location and uneven temperature distribution inside the medicine refrigerator. Summary of the Invention

[0005] This application provides a refrigeration device that can better control the air volume at the glass door position, effectively increase the flow speed of cold air in the air guide channel, reduce the temperature at the glass door position, and solve the problem of excessively high temperature at the glass door position in related technologies. At the same time, since the air guide channel of this application is annular, the cold air can circulate, thereby achieving temperature uniformity at the glass door position, ensuring temperature balance at the glass door position, and further guaranteeing the temperature uniformity of the refrigeration device.

[0006] This application provides a refrigeration device for storing items to be refrigerated. The refrigeration device includes a refrigerated cabinet, a door, an evaporator, a fan assembly, and an air guide. The refrigerated cabinet has a cavity for storing items to be refrigerated, and the evaporator and the fan assembly are both disposed in the cavity. The refrigerated cabinet has an opening, and the door is installed at the opening. The air guide is sleeved on the outer periphery of the refrigerated cabinet near the opening. The fan assembly is connected to both the evaporator and the air guide, and the air guide has an annular air guide channel. The evaporator is configured to cool the hot air entering the cavity. The fan assembly is configured to discharge the cold air generated after cooling by the evaporator into the air guide channel and to draw the cold air in the air guide channel back into the evaporator. The air guide is also configured to discharge the cold air in the air guide channel toward the door.

[0007] Those skilled in the art will understand that the refrigeration equipment of this application includes a refrigerated cabinet, a door, an evaporator, a fan assembly, and an air guide. The evaporator can cool the hot air entering the cavity, so that the hot air is cooled into cold air. The fan assembly can exhaust the cooled air to the door, thereby better controlling the airflow at the glass door position, effectively increasing the flow speed of cold air in the air guide channel, reducing the temperature at the glass door position, and solving the problem of high temperature at the glass door position in related technologies. At the same time, since the air guide channel of this application is annular, the cold air can circulate in the air guide channel, thereby achieving temperature uniformity at the glass door position, ensuring temperature balance at the glass door position, and further ensuring the temperature uniformity of the refrigeration equipment.

[0008] In the preferred technical solution of the above-mentioned refrigeration equipment, the air guide component includes an air guide fan, which is disposed in the air guide channel; the air guide fan includes an air inlet end and an air outlet end, the evaporator is connected to the air inlet end, and the air outlet end faces the door.

[0009] In the preferred technical solution of the above-mentioned refrigeration equipment, the air guide component includes an air guide shell, which is sleeved on the outer periphery of the refrigeration cabinet near the opening. The air guide shell has an air guide cavity, which forms the air guide channel.

[0010] In the preferred embodiment of the above-mentioned refrigeration equipment, an exhaust port is provided on the air guide housing, and the air guide component is configured to discharge the cold air in the air guide channel to the door through the exhaust port.

[0011] In the preferred embodiment of the above-mentioned refrigeration equipment, the fan assembly includes an air inlet fan and a return air fan; the air inlet fan is provided with a first air inlet end and a first air outlet end, the evaporator is connected to the first air inlet end, and the first air outlet end is connected to the air guide channel; the return air fan is provided with a second air inlet end and a second air outlet end, the second air inlet end is connected to the air guide channel, and the second air outlet end is connected to the evaporator.

[0012] In the preferred technical solution of the above-mentioned refrigeration equipment, the air guide is provided with an air inlet and an air return outlet, the first exhaust end is connected to the air guide channel through the air inlet, and the second air inlet end is connected to the air guide channel through the air return outlet.

[0013] In the preferred technical solution of the above-mentioned refrigeration equipment, a controller is also included, which is electrically connected to the evaporator and the fan assembly respectively; the controller is configured to start the evaporator and the air guide fan when the temperature on the door is higher than a preset temperature.

[0014] In the preferred embodiment of the above-mentioned refrigeration equipment, a first temperature detector and a second temperature detector are further included, both of which are disposed in the cavity; the first temperature detector is used to detect the temperature of the door, and the second temperature detector is used to detect the temperature of the cavity other than the door; when the temperature detected by the first temperature detector is greater than the temperature detected by the second temperature detector, the rotation speed of the fan assembly is increased; when the temperature detected by the first temperature detector is less than the temperature detected by the second temperature detector, the rotation speed of the fan assembly is decreased.

[0015] In the preferred embodiment of the above-mentioned refrigeration equipment, the first air inlet end of the air inlet fan is provided with a first air inlet valve, which is used to control the air intake volume entering the air inlet fan through the first air inlet end; and / or, the first air outlet end of the air inlet fan is provided with a first air outlet valve, which is used to control the air exhaust volume discharged through the first air outlet end; and / or, the second air inlet end of the return air fan is provided with a second air inlet valve, which is used to control the air intake volume entering the return air fan through the second air inlet end; and / or, the second air outlet end of the return air fan is provided with a second air outlet valve, which is used to control the air exhaust volume discharged through the second air outlet end.

[0016] In the preferred embodiment of the above-mentioned refrigeration equipment, a compressor is also included, which is connected to the fan assembly, and the compressor and the fan assembly are configured to start or stop synchronously.

[0017] In the preferred embodiment of the above-mentioned refrigeration equipment, at least two shelves are installed in the refrigeration cabinet, and a door handle is provided on the side of the door away from the cavity.

[0018] In addition to the technical problems solved by the embodiments of the present invention, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions as described above, other technical problems that can be solved by the refrigeration equipment provided by the embodiments of the present invention, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific embodiments. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the refrigeration equipment provided in the embodiment of the present invention. Figure 1 ;

[0021] Figure 2 Schematic diagram of the structure of the refrigeration equipment provided in the embodiments of the present invention Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the structure of the fan assembly of the refrigeration equipment provided in an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the evaporator, fan assembly, and air guide of the refrigeration equipment provided in an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the temperature control process of a refrigeration device provided in an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100 - Refrigeration equipment; 110 - Refrigerated cabinet body; 111 - Cavity; 112 - Opening; 120 - Door; 121 - Door handle; 130 - Evaporator; 140 - Air guide component; 141 - Air guide shell; 1411 - Air guide channel; 142 - Air inlet; 143 - Return air inlet; 144 - Exhaust outlet; 150 - Fan assembly; 151 - Inlet fan; 152 - Return air fan; 160 - Shelf. Detailed Implementation

[0027] Refrigeration equipment, such as refrigerators or freezers, is a device that preserves items at low temperatures. It locks cold air in a certain space to achieve a cooling effect and extend the shelf life of items for a long time.

[0028] Refrigerated display cases can store various items such as food, fruits, vegetables, and medicines. Currently, refrigerated display cases on the market can only maintain the temperature and humidity within a suitable range when the door is closed or when the climate is relatively mild.

[0029] Taking a medicine refrigerator as an example, medicine refrigerators are mainly used for the refrigeration and transportation of medicines, biological agents, vaccines, and other special products. Maintaining stable temperature and humidity inside the refrigerator is particularly important for these types of refrigerators. When the indoor temperature is too high, hot air can enter the medicine refrigerator through the glass door; or, after the door is opened for just one minute (the time used for storing and retrieving items), the humidity and temperature inside the medicine refrigerator can change drastically. These drastic changes in temperature and humidity can cause medicines to become ineffective or deteriorate, thus affecting the patient's life and potentially causing a serious medical accident.

[0030] In related technologies, a fan is often installed inside the medicine refrigerator to blow cold air into the refrigerator and lower the temperature. However, in these technologies, the fan is usually installed at the top of the refrigerator, and the cold air blown out is directed vertically into the refrigerator, failing to reach the glass door. This results in poor airflow control at the glass door, causing the temperature there to be higher, and consequently, uneven temperature distribution within the refrigerator.

[0031] To address the aforementioned technical problems, this application provides a refrigeration device comprising a refrigerated cabinet, a door, an evaporator, and an annular air guide. The evaporator cools the hot air entering the cavity, transforming it into cold air. The fan assembly exhausts the cooled air towards the door, thereby better controlling the airflow at the glass door position, effectively increasing the flow speed of cold air in the air guide channel, and reducing the temperature at the glass door position, thus solving the problem of excessively high temperature at the glass door position in related technologies. Furthermore, because the air guide channel of this application is annular, the cold air can circulate within the channel, achieving temperature uniformity at the glass door position and ensuring a balanced temperature, further guaranteeing the temperature uniformity of the refrigeration device.

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] The following is combined Figures 1 to 5 The preferred technical solution of the refrigeration equipment of this application is described.

[0034] Figure 1 This is a schematic diagram of the structure of the refrigeration equipment provided in the embodiment of the present invention. Figure 1 , Figure 2 Schematic diagram of the structure of the refrigeration equipment provided in the embodiments of the present invention Figure 2 , Figure 3 This is a schematic diagram of the structure of the fan assembly of the refrigeration equipment provided in an embodiment of the present invention. Figure 4 This is a schematic diagram of the structure of the evaporator, fan assembly, and air guide of the refrigeration equipment provided in an embodiment of the present invention. Figure 5 This is a schematic diagram of the temperature control process of a refrigeration device provided in an embodiment of the present invention.

[0035] Reference Figures 1 to 5As shown, this application embodiment provides a refrigeration device 100 for storing items to be refrigerated. The refrigeration device 100 can be a refrigerator box, or a refrigerator cabinet, or other devices with refrigeration functions. In this application embodiment, a refrigerator cabinet is mainly used as an example for explanation.

[0036] Items to be refrigerated may include food, vegetables, fruits, medicines, reagents, etc. In this embodiment, medicines stored in refrigeration equipment 100 are used as an example for illustration.

[0037] The refrigeration equipment 100 includes a refrigerator cabinet 110 and a door 120. The refrigerator cabinet 110 has a cavity 111 and an opening 112, and the door 120 is installed at the opening 112. In this embodiment, the door 120 can be a glass door. Glass doors come in various types, which helps improve the decorative effect and appearance. Furthermore, glass doors have high light transmittance and stability, rarely experiencing problems such as deformation or fading. A door handle 121 is provided on the side of the door 120 facing away from the cavity 111, allowing the user to open or close the door 120.

[0038] At least two shelves 160 can be installed in the refrigerator cabinet 110, for example, see reference. Figure 1 As shown, the shelf 160 may include two, three or more. In this embodiment, a six-layer shelf 160 is mainly used as an example for explanation, so that items to be refrigerated can be placed directly on the shelf 160, and different types of items to be refrigerated can be separated for easy access by the user.

[0039] It should be noted that in this embodiment of the application, the size, material, color, model, etc. of the refrigerator cabinet 110 and the door 120 are not further limited, and can be designed according to the actual situation.

[0040] Reference Figure 1 and Figure 2 As shown, the refrigeration equipment 100 also includes an evaporator 130, a fan assembly 150, and an air guide 140. The evaporator 130 and the fan assembly 150 are both disposed in the cavity 111. The air guide 140 is sleeved on the outer periphery of the refrigeration cabinet 110 near the opening 112. The fan assembly 150 is connected to the evaporator 130 and the air guide 140 respectively. The air guide 140 has an annular air guide channel 1411.

[0041] The location of the evaporator 130 and the fan assembly 150 is not further limited. For example, the evaporator 130 and the fan assembly 150 can be located at the top of the refrigerator cabinet 110, or the evaporator 130 and the fan assembly 150 can be located at other locations in the refrigerator cabinet 110. The evaporator 130 is used to cool the hot air entering the cavity 111.

[0042] The air guide 140 is a component with air guiding function. The air guide 140 includes an air guide housing 141, which is sleeved on the outer periphery of the refrigerator cabinet 110 near the opening 112. The air guide housing 141 has an air guide cavity, which forms an air guide channel 1411.

[0043] The size, shape, color, and material of the air guide housing 141 are not further limited. The air guide housing 141 can be an annular component; for example, the annular component can include a square ring or a circular ring, etc.

[0044] In this embodiment, the air guide housing 141 and the refrigerator cabinet 110 are both square in shape, which facilitates the assembly between the air guide housing 141 and the refrigerator cabinet 110. In addition, the square shape allows the cavity 111 to maintain sufficient space and has high stability and is not easily damaged.

[0045] The fan assembly 150 includes an intake fan 151 and a return fan 152. The intake fan 151 is provided with a first air inlet and a first air outlet. The evaporator 130 is connected to the first air inlet and the first air outlet is connected to the air guide channel 1411. The return fan 152 is provided with a second air inlet and a second air outlet. The second air inlet is connected to the air guide channel 1411 and the evaporator 130.

[0046] Specific reference Figures 2 to 4 As shown, the intake fan 151 is used to discharge the cold air generated after being cooled by the evaporator 130 into the air guide channel 1411, and the return fan 152 is used to draw the cold air in the air guide channel 1411 back into the evaporator 130. The intake fan 151 is also used to discharge the cold air in the air guide channel 1411 toward the door 120.

[0047] This allows for air circulation to achieve ventilation and cooling. The dimensions of the first air inlet, first air outlet, second air inlet, and second air outlet can be set according to actual conditions. In addition, different forms of the first air inlet, first air outlet, second air inlet, and second air outlet can be selected according to airflow patterns and other requirements.

[0048] The materials of the intake fan 151 and the return fan 152 are not limited. For example, the intake fan 151 and the return fan 152 can be classified according to the material used, such as iron shell fans (ordinary fans), fiberglass fans, plastic fans, aluminum fans, stainless steel fans, etc.; or, the intake fan 151 and the return fan 152 can be classified according to the direction of gas flow, such as centrifugal, axial, mixed flow, and cross flow types; or, the intake fan 151 and the return fan 152 can be classified according to their use, such as axial flow fans, mixed flow fans, roof fans, air conditioning fans, etc.; the intake fan 151 and the return fan 152 can be classified according to pressure, such as negative pressure fans, low pressure fans, medium pressure fans, and high pressure fans.

[0049] The performance parameters of the intake fan 151 and return fan 152 mainly include flow rate, pressure, power, efficiency, and speed. In addition, noise and vibration levels are also key fan design parameters. Flow rate, also known as air volume, is expressed as the volume of gas flowing through the fan per unit time; pressure, also known as air pressure, refers to the increase in gas pressure within the fan, and is categorized as static pressure, dynamic pressure, and total pressure; power refers to the fan's input power, i.e., shaft power. The ratio of the fan's effective power to its shaft power is called efficiency.

[0050] It should be noted that there are no further limitations on the air intake speed and exhaust speed of the air intake fan 151 and the air return fan 152; they can be set according to the actual situation.

[0051] The working principle of the refrigeration equipment 100 in this embodiment is as follows: The refrigeration equipment 100 is placed indoors. When the indoor temperature is too high, the hot air in the room enters the cavity 111 through the door 120. The evaporator 130 first cools the hot air entering the cavity 111. The air intake fan 151 discharges the cold air generated after being cooled by the evaporator 130 into the air guide channel 1411. The return air fan 152 is used to draw the cold air in the air guide channel 1411 back into the evaporator 130. The cold air circulates in the air guide channel 1411 and is discharged to the door 120 through the exhaust end.

[0052] Since the air guide channel 1411 is annular, it serves two purposes: firstly, it guides and gathers the incoming cold air, allowing it to be directly discharged towards the door 120, resulting in a good cooling effect on the door 120; secondly, the cold air circulates within the air guide channel 1411, filling the entire channel and allowing it to be discharged from any point on the channel, thus achieving temperature uniformity at the door 120 and ensuring a balanced temperature throughout the refrigeration equipment 100.

[0053] Additionally, it should be noted that when the length of the air duct 1411 is set too long, the airflow speed inside the air duct 1411 will be correspondingly reduced. Therefore, in this embodiment, by simultaneously setting the inlet fan 151 and the return fan 152, the evaporator 130, the inlet fan 151, the air duct 1411, and the return fan 152 can form a circulating air duct. Thus, when the airflow speed inside the air duct 1411 decreases, the return fan 152 draws the cold air inside the air duct 1411 back into the evaporator 130, allowing the evaporator 130 to continue its cooling operation. The inlet fan 151 continuously discharges the cooled air into the air duct 1411, eventually discharging it towards the door 120, thereby maximizing the airflow speed inside the air duct 1411.

[0054] In one feasible approach, refer to Figure 2 and Figure 3 As shown, an exhaust port 144 can be provided on the air guide housing 141, and the cold air drawn into the air guide channel 1411 is discharged to the door body 120 through the exhaust port 144.

[0055] It is understandable that the exhaust vent 144 is located on the side that communicates with the cavity 111. That is, the air guide housing 141 is connected to the cavity 111 through the exhaust vent 144, which helps to exhaust cold air to the door 120 through the exhaust vent 144.

[0056] The exhaust vent 144 may include multiple vents. For example, the exhaust vent 144 may include two, three, four or more vents. The multiple exhaust vents 144 may be distributed at intervals on the air guide housing 141. For example, the multiple exhaust vents 144 may be distributed at equal intervals on the air guide housing 141; or, the multiple exhaust vents 144 may be distributed at unequal intervals on the air guide housing 141.

[0057] In one feasible approach, refer to Figure 2 and Figure 3 The air guide housing 141 may be provided with an air inlet 142 and an air return outlet 143. The first exhaust end is connected to the air guide channel 1411 through the air inlet 142, and the second air inlet end is connected to the air guide channel 1411 through the air return outlet 143.

[0058] There are no further restrictions on the location and number of air inlets 142 and air outlets 143; they can be set according to the actual situation.

[0059] In one possible implementation, a controller may also be included, which consists of a program counter, an instruction register, an instruction decoder, a timing generator, and an operation controller. It is the "decision-making body" that issues commands, that is, it coordinates and directs the operation of the entire computer system.

[0060] The controller and evaporator 130 are electrically connected. For example, the controller can be electrically connected to the evaporator 130 via a wire, or the controller and evaporator 130 can be wirelessly connected via a transmitter / receiver. The controller is used to activate the evaporator 130 when the temperature on the door 120 is higher than a preset temperature, so that the evaporator 130 cools the hot air entering the cavity 111.

[0061] The controller and the fan assembly 150 are electrically connected. For example, the controller can be electrically connected to the fan assembly 150 via a wire, or the controller and the fan assembly 150 can be wirelessly connected via a transmitter / receiver. The controller is used to activate the fan assembly 150 when the temperature on the door 120 is higher than a preset temperature, so that the fan assembly 150 exhausts cooled air to the door 120.

[0062] It should be noted that there is no specific limitation on the preset temperature value; it can be set according to the actual situation.

[0063] In one possible implementation, a first temperature detector and a second temperature detector may also be included, both of which are disposed within the cavity.

[0064] The first temperature detector can be installed on the door 120 and is used to detect the temperature on the door 120. The second temperature detector can be installed in the cavity 111 and is used to detect the temperature in the cavity 111 other than that on the door 120.

[0065] Reference Figure 5 As shown, when the first detection temperature of the first temperature detector is greater than the second detection temperature of the second temperature detector, the rotation speed of the fan assembly 150 is increased; when the first detection temperature of the first temperature detector is less than the second detection temperature of the second temperature detector, the rotation speed of the fan assembly 150 is decreased.

[0066] This setup, by comparing the first and second detected temperatures, adjusts the rotation speed of the intake fan 151 and the return fan 152, thereby adjusting the air volume of the intake fan 151 and the return fan 152, which helps to reduce the temperature at the glass door location according to the actual situation.

[0067] Similarly, the preset temperature in this embodiment can be set according to the actual situation.

[0068] In one possible implementation, the first air inlet end of the air inlet fan 151 may be provided with a first air inlet valve. For example, the first air inlet valve may be a solenoid valve. The first air inlet valve may be electrically connected to a controller. The controller controls the opening or closing of the first air inlet valve. The first air inlet valve controls the air volume entering the air inlet fan 151 through the first air inlet end. For example, the air volume may be increased or decreased by manually adjusting the first air inlet valve.

[0069] The first exhaust end of the air intake fan 151 may be equipped with a first exhaust valve. For example, the first exhaust valve may be a solenoid valve. The first exhaust valve may be electrically connected to a controller. The controller controls the opening or closing of the first exhaust valve. The first exhaust valve controls the amount of air discharged through the first exhaust end. For example, the amount of air discharged may be increased or decreased by manually adjusting the first exhaust valve.

[0070] Similarly, a second air inlet valve may be provided at the second air inlet end of the return air fan 152. The second air inlet valve is used to control the air volume entering the return air fan 152 through the second air inlet end; a second air outlet valve may be provided at the second air outlet end of the return air fan 152. The second air outlet valve is used to control the air volume discharged through the second air outlet end.

[0071] In one possible implementation, a compressor may also be included, which is connected to the fan assembly 150. The compressor and the fan assembly 150 are configured to start or stop synchronously, which can avoid control errors in the fan assembly 150 during operation.

[0072] Therefore, the refrigeration equipment 100 in this embodiment includes a refrigeration cabinet 110, a door 120, an evaporator 130, and an annular air guide 140. The evaporator 130 can cool the hot air entering the cavity 111, so that the hot air is cooled to form cold air. The air guide 140 can exhaust the cold air generated after cooling to the door 120, thereby better controlling the airflow at the glass door position, reducing the temperature at the glass door position, and solving the problem of high temperature at the glass door position in related technologies. At the same time, since the air guide channel 1411 of this application is annular, the cold air can circulate in the air guide channel 1411, thereby achieving temperature uniformity at the glass door position, ensuring temperature balance at the glass door position, and further ensuring the temperature uniformity of the refrigeration equipment 100.

[0073] Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0074] It should be noted that in the description of this invention, the terms "inner" and "outer," etc., which indicate the direction or positional relationship, are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or component in this embodiment must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0075] It should also be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A refrigeration device for storing items to be refrigerated, characterized in that, The refrigeration equipment includes a refrigeration cabinet, a door, an evaporator, a fan assembly, and air guide components; The refrigerator cabinet has a cavity for storing items to be refrigerated, and the evaporator and the fan assembly are both disposed in the cavity; The refrigerator cabinet has an opening, the door is installed at the opening, the air guide is sleeved on the outer periphery of the refrigerator cabinet near the opening, the fan assembly is connected to the evaporator and the air guide respectively, and the air guide has an annular air guide channel. The evaporator is configured to cool the hot air entering the cavity, the fan assembly is configured to discharge the cold air generated after being cooled by the evaporator into the air guide channel, and to draw the cold air in the air guide channel back into the evaporator, and the air guide is also configured to discharge the cold air in the air guide channel toward the door.

2. The refrigeration equipment according to claim 1, characterized in that, The air guide component includes an air guide housing, which is sleeved on the outer periphery of the refrigerator body near the opening. The air guide housing has an air guide cavity, which forms the air guide channel.

3. The refrigeration equipment according to claim 2, characterized in that, The air guide housing has an exhaust port, and the air guide component is used to discharge the cold air in the air guide channel to the door body through the exhaust port.

4. The refrigeration equipment according to any one of claims 1-3, characterized in that, The fan assembly includes an intake fan and a return fan; The air intake fan is provided with a first air inlet and a first air outlet. The evaporator is connected to the first air inlet and the first air outlet is connected to the air guide channel. The return air fan is provided with a second air inlet and a second air outlet. The second air inlet is connected to the air guide channel, and the second air outlet is connected to the evaporator.

5. The refrigeration equipment according to claim 4, characterized in that, The air guide is provided with an air inlet and an air return outlet. The first exhaust end is connected to the air guide channel through the air inlet, and the second air inlet end is connected to the air guide channel through the air return outlet.

6. The refrigeration equipment according to any one of claims 1-3, characterized in that, It also includes a controller, which is electrically connected to the evaporator and the fan assembly, respectively; The controller is configured to start the evaporator and the fan assembly when the temperature on the door is higher than a preset temperature.

7. The refrigeration equipment according to any one of claims 1-3, characterized in that, It also includes a first temperature detector and a second temperature detector, both of which are disposed in the cavity; The first temperature detector is used to detect the temperature of the door body, and the second temperature detector is used to detect the temperature of the cavity other than the door body; When the first detected temperature of the first temperature detector is greater than the second detected temperature of the second temperature detector, the rotational speed of the fan assembly is increased; When the first detection temperature of the first temperature detector is lower than the second detection temperature of the second temperature detector, the rotational speed of the fan assembly is reduced.

8. The refrigeration equipment according to claim 4, characterized in that, The first air inlet end of the air inlet fan is provided with a first air inlet valve, which is used to control the air intake volume entering the air inlet fan through the first air inlet end; and / or, the first air outlet end of the air inlet fan is provided with a first air outlet valve, which is used to control the air outlet volume discharged through the first air outlet end. And / or, the second air inlet end of the return air fan is provided with a second air inlet valve, which is used to control the air volume entering the return air fan through the second air inlet end; and / or, the second air outlet end of the return air fan is provided with a second air outlet valve, which is used to control the air volume discharged through the second air outlet end.

9. The refrigeration equipment according to any one of claims 1-3, characterized in that, It also includes a compressor connected to the fan assembly, and the compressor and the fan assembly are configured to start or stop synchronously.

10. The refrigeration equipment according to any one of claims 1-3, characterized in that, The refrigerator cabinet is equipped with at least two shelves, and the door is provided with a door handle on the side of the door away from the cavity.

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