Anti-condensation refrigerator and anti-condensation method

Abstract

The invention provides an anti-condensation refrigerator and an anti-condensation method, the refrigerator comprises a refrigerating chamber, the refrigerating chamber comprises a first door body and a second door body, and an overturning beam is arranged between the first door body and the second door body; the semiconductor air duct assembly is arranged at the top of the refrigerating chamber and comprises a semiconductor assembly and an air duct assembly; the semiconductor assembly comprises a refrigeration fan, a refrigeration sheet, a semiconductor chip, a cooling fin and a cooling fan, the cooling fin and the cooling fan are fixed in the air duct, and the refrigeration fan and the refrigeration sheet are fixed in the refrigerating chamber; the air duct assembly is fixed to the top of the refrigerating chamber and comprises an air inlet and an air outlet, the air outlet is located in the top of the overturning beam, and the air inlet is away from one side of the overturning beam. According to the refrigerator, the semiconductor assembly is arranged on the upper portion of the refrigeration chamber, the air duct is reasonably arranged, the hot end air outlet is formed in the inlet of the overturning beam, and the refrigerator anti-condensation control is matched, so that the semiconductor refrigeration cooling capacity and heat are used to the maximum degree, and the purpose of saving energy is achieved.

Description

Technical Field

[0001] This application relates to the technical field of refrigerators, and particularly to a condensation-proof refrigerator and a condensation-proof method. Background Art

[0002] In modern life, refrigerators have become indispensable household electrical appliances. French or cross-opening multi-door refrigerators are favored by many consumers due to their large capacity and reasonable zoning. Such refrigerators usually have a flip beam arranged between two refrigerator door bodies of the refrigerating chamber. However, during the normal refrigeration operation of the refrigerator, due to the limitations of the structure and materials of the flip beam part, the local heat insulation performance is poor. When the warm and humid air in the external environment comes into contact with the relatively low-temperature surface of the flip beam, water vapor will condense when cooled, thus forming a condensation phenomenon on the surface of the flip beam. Condensation not only affects the appearance cleanliness of the refrigerator, but also may flow down along the refrigerator door body after long-term accumulation, causing damage to the furniture and floor around the refrigerator, and even may cause potential electrical safety hazards, bringing many inconveniences to users.

[0003] To solve the problem of condensation on the surface of the flip beam, the common method in the current market is to paste an electric heater on the inner surface of the flip beam. By the electric heater generating heat, the surface temperature of the flip beam is increased, so that the surface temperature is higher than the dew point temperature, thereby avoiding the liquefaction of water vapor on its surface and achieving the purpose of preventing condensation. In addition, the industry also adopts the method of adding an environmental temperature and humidity sensor on the surface of the refrigerator, and according to the changes in the environmental temperature and humidity, a reasonable working ratio of the heater is given to control the heating situation of the flip beam.

[0004] Adopting the method of directly heating with an electric heater can effectively prevent condensation, but the continuous operation of the electric heater will consume a large amount of electric energy, which undoubtedly increases the energy consumption of the refrigerator and does not conform to the current development trend of energy conservation and environmental protection. Related technologies reduce energy consumption by adding an environmental temperature and humidity sensor and optimizing the heater control strategy, but there are still some deficiencies. First, the use of the electric heater itself increases the energy consumption of the refrigerator and cannot fundamentally solve the energy consumption problem. Second, although the existing heater control strategy can reduce energy consumption to a certain extent, under high environmental temperature and humidity conditions, the heater still needs to be frequently started, resulting in high energy consumption. In addition, the frequent start of the heater will also affect the service life and stability of the refrigerator. Therefore, how to effectively prevent condensation of the flip beam and reduce energy consumption on the premise of ensuring the normal operation of the refrigerator has become an urgent problem to be solved in the design of refrigerators. Summary of the Invention

[0005] This application provides a condensation-proof refrigerator and a condensation-proof method to solve the problem of high energy consumption caused by heating to remove condensation when the flip beam of the existing refrigerator generates condensation.

[0006] In a first aspect, this application provides a condensation-proof refrigerator, and the refrigerator includes:

[0007] A refrigerating chamber, the refrigerating chamber includes a first door body and a second door body, and a turning beam is provided between the first door body and the second door body;

[0008] A semiconductor air duct assembly is provided at the top of the refrigerating chamber, and the semiconductor air duct assembly includes a semiconductor assembly and an air duct assembly; the semiconductor assembly includes a refrigeration fan, a refrigeration sheet, a semiconductor chip, a heat sink and a cooling fan, the heat sink and the cooling fan are fixed inside the air duct, and the refrigeration fan and the refrigeration sheet are fixed inside the refrigerating chamber;

[0009] The air duct assembly is fixed to the top of the refrigerating chamber, the air duct assembly includes an air inlet and an air outlet, the air outlet is located at the top of the turning beam, and the air inlet is on the side far from the turning beam;

[0010] A controller is provided inside the refrigerator, and the controller is configured to:

[0011] When the ambient humidity is greater than a preset threshold, control the semiconductor assembly to operate at a first speed.

[0012] In some possible implementation manners, the controller is further configured to:

[0013] Obtain the ambient temperature, the ambient humidity and the real-time temperature of the refrigerating chamber;

[0014] Based on the ambient temperature, determine the preset humidity threshold corresponding to the ambient temperature;

[0015] When the ambient humidity is greater than the preset humidity threshold, control the semiconductor assembly to operate at a first speed;

[0016] Otherwise, turn off the semiconductor assembly.

[0017] In some possible implementation manners, after controlling the semiconductor assembly to operate at a first speed when the ambient humidity is greater than the preset humidity threshold, the controller is further configured to:

[0018] Collect the temperature of the refrigerating chamber;

[0019] When the temperature of the refrigerating chamber is less than or equal to the shutdown point temperature, obtain the ambient temperature, the ambient humidity and the real-time temperature of the refrigerating chamber again to adjust the first speed of the semiconductor assembly according to the ambient temperature, the ambient humidity and the real-time temperature of the refrigerating chamber;

[0020] Otherwise, turn off the semiconductor assembly.

[0021] In some possible implementation manners, determining the preset humidity threshold corresponding to the ambient temperature based on the ambient temperature includes:

[0022] If the ambient temperature is less than or equal to the first preset temperature, the preset humidity threshold is the first threshold;

[0023] If the ambient temperature is greater than the first preset temperature and less than or equal to the second preset temperature, the preset humidity threshold is the second threshold;

[0024] If the ambient temperature is greater than the second preset temperature, the preset humidity threshold is the third threshold.

[0025] In some possible implementation manners, the first preset temperature is 16 °C, and the second preset temperature is 25 °C.

[0026] In some possible implementation manners, the first threshold is 50%, the second threshold is 35%, and the third threshold is 15%.

[0027] In some possible implementation manners, the stop point temperature = preset refrigeration temperature - first constant - second constant, the range of the first constant is 1 to 5, and the range of the second constant is 1 to 2.

[0028] In some possible implementation manners, the first rotation speed is calculated based on the following formula: the first rotation speed V1 = 0.1 × ambient temperature × ambient humidity × preset base rotation speed V × preset correction value a.

[0029] In a second aspect, the present application provides a method for preventing condensation. The method is applied to the refrigerator described in the first aspect, and the method includes:

[0030] Obtain the ambient temperature, ambient humidity, and the real-time temperature of the refrigerating chamber;

[0031] Determine the preset humidity threshold corresponding to the ambient temperature based on the ambient temperature;

[0032] When the ambient humidity is greater than the preset humidity threshold, control the semiconductor component to operate at the first rotation speed;

[0033] Collect the temperature of the refrigerating chamber;

[0034] When the temperature of the refrigerating chamber is less than or equal to the stop point temperature, obtain the ambient temperature, ambient humidity, and the real-time temperature of the refrigerating chamber again to adjust the first rotation speed of the semiconductor component according to the ambient temperature, ambient humidity, and the real-time temperature of the refrigerating chamber;

[0035] When the ambient humidity is less than or equal to the preset humidity threshold,

[0036] Or,

[0037] When the temperature of the refrigerating chamber is less than the preset value of the stop point temperature, turn off the semiconductor component.

[0038] As can be seen from the above, the present application provides an anti-condensation refrigerator and an anti-condensation method. The refrigerator includes: a refrigerating chamber, the refrigerating chamber includes a first door body and a second door body, and a flipping beam is provided between the first door body and the second door body; a semiconductor air duct assembly is provided at the top of the refrigerating chamber, and the semiconductor air duct assembly includes a semiconductor assembly and an air duct assembly; the semiconductor assembly includes a refrigeration fan, a refrigeration chip, a semiconductor chip, a heat sink and a heat dissipation fan, the heat sink and the heat dissipation fan are fixed inside the air duct, and the refrigeration fan and the refrigeration chip are fixed inside the refrigerating chamber; the air duct assembly is fixed to the top of the refrigerating chamber, the air duct assembly includes an air inlet and an air outlet, the air outlet is located at the top of the flipping beam, and the air inlet is on the side far from the flipping beam; a controller is provided inside the refrigerator, and the controller is configured to: when the ambient humidity is greater than a preset threshold, control the semiconductor assembly to operate at a first speed. In the present application, the semiconductor assembly is arranged at the upper part of the refrigerating compartment, and the air duct is reasonably arranged, and the hot end air outlet is arranged at the entrance of the flipping beam. Combined with the anti-condensation control of the refrigerator, the cooling capacity and heat of the semiconductor refrigeration are maximally used, the purpose of removing the heater on the surface of the flipping beam is achieved, and the purpose of saving energy is achieved. At the same time, it can alleviate the insufficient refrigerating capacity at the upper part of the refrigerating chamber under high ambient temperature, reduce the problem of refrigerating fluctuation temperature difference, and improve the fresh-keeping effect of the refrigerating chamber. Description of the Drawings

[0039] In order to more clearly illustrate the technical solutions of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0040] Figure 1 It is a schematic structural diagram of the anti-condensation refrigerator provided by the embodiment of the present application;

[0041] Figure 2 It is a schematic enlarged view of the semiconductor air duct assembly provided by the embodiment of the present application;

[0042] Figure 3 It is a flowchart of the anti-condensation method provided by the embodiment of the present application.

[0043] Illustration: 1 - refrigerating chamber; 21 - first door body; 22 - second door body; 3 - flipping beam; 4 - semiconductor air duct assembly; 41 - semiconductor assembly; 411 - refrigeration fan; 412 - refrigeration chip; 413 - semiconductor chip; 414 - heat sink; 415 - heat dissipation fan; 42 - air duct assembly; 421 - air inlet; 422 - air outlet. Detailed Embodiments

[0044] Embodiments will be described in detail below, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following examples do not represent all embodiments consistent with the present application. They are merely examples of systems and methods consistent with some aspects of the present application detailed in the claims.

[0045] In modern life, refrigerators have become indispensable household electrical appliances. French or cross - split multi - door refrigerators are favored by many consumers due to their large capacity and reasonable zoning. Such refrigerators usually have a flip beam arranged between two refrigerator door bodies of the refrigerating chamber. However, during normal refrigeration operation of the refrigerator, due to the limitations of the structure and materials of the flip beam, the local heat preservation performance is poor. When warm and humid air in the external environment comes into contact with the relatively low - temperature surface of the flip beam, water vapor will condense when cooled, thus forming a condensation phenomenon on the surface of the flip beam. Condensation not only affects the appearance cleanliness of the refrigerator, but if it accumulates over a long time, it may flow down along the refrigerator door body, causing damage to the furniture and floor around the refrigerator, and may even pose an electrical safety hazard, bringing a lot of inconvenience to users.

[0046] To solve the problem of condensation on the surface of the flip beam, a common method in the current market is to paste an electric heater on the inner surface of the flip beam. By the electric heater generating heat, the surface temperature of the flip beam is increased, making the surface temperature higher than the dew point temperature, thereby avoiding the liquefaction of water vapor on its surface and achieving the purpose of preventing condensation. In addition, the industry also adopts the method of adding an ambient temperature and humidity sensor on the surface of the refrigerator. According to the changes in ambient temperature and humidity, a reasonable working ratio of the heater is given to control the heating situation of the flip beam.

[0047] Using the method of directly heating with an electric heater can effectively prevent condensation, but the continuous operation of the electric heater will consume a large amount of electric energy, which undoubtedly increases the energy consumption of the refrigerator and does not conform to the current development trend of energy conservation and environmental protection. Related technologies reduce energy consumption by adding an ambient temperature and humidity sensor and optimizing the heater control strategy, but there are still some deficiencies. First, the use of the electric heater itself increases the energy consumption of the refrigerator and cannot fundamentally solve the energy consumption problem. Second, although the existing heater control strategy can reduce energy consumption to a certain extent, under high ambient temperature and humidity conditions, the heater still needs to be frequently started, resulting in high energy consumption. In addition, the frequent start of the heater will also affect the service life and stability of the refrigerator. Therefore, how to effectively prevent condensation on the flip beam and reduce energy consumption while ensuring the normal operation of the refrigerator has become an urgent problem to be solved in refrigerator design.

[0048] Based on this, the present application provides an anti-condensation refrigerator and an anti-condensation method. A semiconductor air duct assembly is provided at the top of the refrigerating chamber, and by utilizing the characteristics of the hot and cold ends of the semiconductor assembly, the heat generated at the hot end is conveyed to the top of the flipping beam. By reasonably setting the air duct, the heat generated by the semiconductor assembly can be blown out from the air outlet in time, increasing the surface temperature of the flipping beam to be higher than the dew point temperature, effectively preventing condensation from occurring, effectively utilizing the heat generated by semiconductor refrigeration, avoiding the use of additional electric heaters, greatly reducing energy consumption, and at the same time preventing condensation from occurring.

[0049] In some embodiments, the present application provides an anti-condensation refrigerator, as Figures 1 to 2 shown, the refrigerator includes:

[0050] A refrigerating chamber 1, the refrigerating chamber 1 includes a first door body 21 and a second door body 22, and a flipping beam 3 is provided between the first door body 21 and the second door body 22;

[0051] A semiconductor air duct assembly 4, provided at the top of the refrigerating chamber 1, the semiconductor air duct assembly 4 includes a semiconductor assembly 41 and an air duct assembly 42; the semiconductor assembly 41 includes a refrigeration fan 411, a refrigeration chip 412, a semiconductor chip 413, a heat sink 414 and a heat dissipation fan 415, the heat sink 414 and the heat dissipation fan 415 are fixed inside the air duct, the refrigeration fan 411 and the refrigeration chip 412 are fixed inside the refrigerating chamber; the semiconductor chip 413 is arranged inside the semiconductor assembly 41;

[0052] The air duct assembly 42 is fixed to the top of the refrigerating chamber 1, the air duct assembly 42 includes an air inlet 421 and an air outlet 422, the air outlet 422 is located at the top of the flipping beam 3, and the air inlet 421 is on the side away from the flipping beam 3;

[0053] A controller, the controller is arranged inside the refrigerator, and the controller is configured to:

[0054] When the ambient humidity is greater than a preset threshold, control the semiconductor assembly 41 to operate at a first speed.

[0055] By installing the semiconductor air duct assembly 4 at the top of the refrigerating chamber 1, the cold generated by the operation of the refrigeration fan 411 and the refrigeration chip 412 can be more evenly distributed in the upper part of the refrigerating chamber 1. This not only alleviates the problem of insufficient refrigeration capacity in the upper part of the refrigerating chamber 1, but also reduces the fluctuating temperature difference inside the refrigerating chamber 1, provides a more stable fresh-keeping environment for food, and is beneficial to extending the fresh-keeping period of food.

[0056] The air outlet 422 of the air duct assembly 42 is located at the top of the flipping beam 3, and the air inlet 421 is far from the flipping beam 3. This design forms a good air circulation channel. When the warm and humid air in the outside world comes into contact with the surface of the relatively low-temperature flipping beam 3 and is likely to form condensation, the heat generated by the semiconductor assembly 41 can be blown out from the air outlet 422 in time, increasing the surface temperature of the flipping beam 3 to be higher than the dew point temperature, effectively preventing the generation of condensation. Compared with the traditional anti-condensation methods, this structure can control the surface temperature of the flipping beam 3 more precisely and efficiently, significantly improving the anti-condensation effect.

[0057] The semiconductor air duct assembly 4 is arranged at the top of the refrigerating chamber 1, without occupying the storage space in the refrigerating chamber, enabling more reasonable utilization of the internal space of the refrigerator. Compared with the traditional method of arranging heaters inside the flipping beam 3, it avoids complex transformation of the structure of the flipping beam 3 and reduces the space occupied by arranging heaters, making it more convenient for users to store items.

[0058] Each component of the semiconductor air duct assembly 4 has a clear division of labor and works in coordination. The heat sink 414 and the cooling fan 415 are fixed inside the air duct, capable of effectively dissipating heat and ensuring the stable operation of the semiconductor chip 413 and the refrigerating sheet 412; the refrigerating fan 411 and the refrigerating sheet 412 are fixed inside the refrigerating chamber 1, with a stable installation position, reducing the risk of failures caused by factors such as vibration. The overall structure is reasonably designed, improving the stability and reliability of the anti-condensation system of the refrigerator and reducing the maintenance cost and frequency.

[0059] In some embodiments, the controller is further configured to:

[0060] Obtain the ambient temperature, ambient humidity, and the real-time temperature of the refrigerating chamber 1;

[0061] Based on the ambient temperature, determine the preset humidity threshold corresponding to the ambient temperature;

[0062] When the ambient humidity is greater than the preset humidity threshold, control the semiconductor assembly 41 to operate at the first rotation speed;

[0063] Otherwise, turn off the semiconductor assembly 41.

[0064] The controller sets the corresponding preset humidity threshold based on the ambient temperature, making the control more targeted. Ambient humidity is a key factor in the generation of condensation. When the ambient humidity is greater than the preset humidity threshold, the semiconductor assembly 41 is started and operates at the first rotation speed to promptly increase the temperature of the flipping beam and prevent the formation of condensation. This control step can keenly capture the environmental changes prone to condensation and precisely address the condensation problem, ensuring the clean appearance of the refrigerator and avoiding damage to the refrigerator and its surroundings caused by condensation.

[0065] The controller in the refrigerator obtains the current ambient temperature TH, ambient humidity RH, and the real-time temperature Ti of the refrigerating chamber 1 through temperature sensors and humidity sensors electrically connected thereto. Among them, the temperature and humidity sensors for measuring the current ambient temperature TH and ambient humidity RH are provided outside the refrigerator, and the temperature sensor for measuring the real-time temperature Ti of the refrigerating chamber 1 is provided inside the refrigerator.

[0066] The controller determines the working mode of the anti-condensation refrigerator based on the current ambient temperature TH. The anti-condensation refrigerator includes three working modes, namely the first mode, the second mode, and the third mode, and different working modes correspond to different preset humidity thresholds.

[0067] If the ambient temperature TH is less than or equal to the first preset temperature, the controller sets the working mode of the refrigerator to the first mode, and the preset humidity threshold in this mode is the first threshold;

[0068] If the ambient temperature TH is greater than the first preset temperature and less than or equal to the second preset temperature, the controller sets the working mode of the refrigerator to the second mode, and the preset humidity threshold in this mode is the second threshold;

[0069] If the ambient temperature TH is greater than the second preset temperature, the controller sets the working mode of the refrigerator to the third mode, and the preset humidity threshold in this mode is the third threshold.

[0070] In some embodiments, the first preset temperature is 16 °C, and the second preset temperature is 25 °C.

[0071] In some embodiments, the first threshold is 50%, the second threshold is 35%, and the third threshold is 15%.

[0072] The controller compares the current ambient temperature with the preset humidity threshold of the current working mode. When the ambient humidity is greater than the preset humidity threshold, it controls the semiconductor component 41 to operate at the first speed; otherwise, it turns off the semiconductor component 41.

[0073] Among them, in some embodiments, the first speed is calculated based on the following formula: the first speed V1 = 0.1 × ambient temperature TH × ambient humidity RH × preset basic speed V × preset correction value a. Wherein, the preset basic speed V can be 1200 rpm, and a can be 0.3.

[0074] The above control steps dynamically adjust the preset humidity threshold according to the ambient temperature, and accurately judge the operating state of the semiconductor component 41. When the ambient humidity does not exceed the preset humidity threshold, the semiconductor component 41 is turned off, avoiding its unnecessary operation and reducing power consumption. Compared with the anti-condensation method of continuous operation or undifferentiated control, this intelligent control strategy greatly reduces the energy consumption of the refrigerator, improves the energy utilization efficiency, and conforms to the current concept of energy conservation and environmental protection. Frequent startup and shutdown of the semiconductor component 41 will affect its service life. This control step turns off the component when anti-condensation is not required, reduces its operating duration and startup times, reduces the wear of the component, and helps to extend the service life of the semiconductor component 41. This not only reduces the maintenance cost and frequency of the refrigerator, but also enhances the stability and reliability of the anti-condensation function of the refrigerator, improving the user experience.

[0075] In some embodiments, when the ambient humidity is greater than the preset humidity threshold and the semiconductor component 41 is controlled to operate at a first speed, the controller is further configured to:

[0076] Collect the temperature of the refrigerating chamber;

[0077] When the temperature of the refrigerating chamber is less than or equal to the shutdown point temperature, obtain the ambient temperature, ambient humidity and the real-time temperature of the refrigerating chamber 1 again to adjust the speed of the semiconductor component 41 according to the ambient temperature, ambient humidity and the real-time temperature of the refrigerating chamber 1;

[0078] Otherwise, turn off the semiconductor component.

[0079] After the semiconductor component 41 starts up, the controller collects the current temperature of the refrigerating chamber 1. When the temperature of the refrigerating chamber is less than or equal to the shutdown point temperature, continuously obtain the ambient temperature TH, ambient humidity RH and the real-time temperature Ti of the refrigerating chamber 1, and adjust the first speed in real time through the ambient temperature TH, ambient humidity RH and the real-time temperature Ti of the refrigerating chamber 1.

[0080] Otherwise, the controller turns off the semiconductor component 41.

[0081] In some embodiments, the shutdown point temperature = preset refrigeration temperature - first constant - second constant, the range of the first constant is 1 to 5, and the range of the second constant is 1 to 2. Among them, in some embodiments, the first constant is 2 and the second constant is 1.

[0082] By continuously obtaining the ambient temperature TH, the ambient humidity RH, and the real-time temperature Ti of the refrigerating chamber 1, and adjusting the first rotation speed in real time, the power output of the semiconductor component 41 can be accurately controlled according to the actual environmental conditions. For example, when the ambient humidity and temperature are low and the risk of condensation is small, the first rotation speed is appropriately reduced to reduce energy consumption; while when the environmental conditions are relatively harsh, the rotation speed is increased to effectively prevent condensation, avoiding waste of energy and achieving a balance between energy conservation and anti-condensation effects.

[0083] When the temperature of the refrigerating chamber is less than the preset value of the shutdown point temperature, control to turn off the semiconductor component 41.

[0084] In some embodiments, an anti-condensation method is further provided, which is applied to the refrigerator described in the above embodiments, as Figure 3 shown, the method includes:

[0085] Obtain the ambient temperature, the ambient humidity, and the real-time temperature of the refrigerating chamber;

[0086] Based on the ambient temperature, determine the preset humidity threshold corresponding to the ambient temperature;

[0087] When the ambient humidity is greater than the preset humidity threshold, control the semiconductor component to operate at the first rotation speed;

[0088] Collect the temperature of the refrigerating chamber;

[0089] When the temperature of the refrigerating chamber is less than or equal to the shutdown point temperature, obtain the ambient temperature, the ambient humidity, and the real-time temperature of the refrigerating chamber again, so as to adjust the rotation speed of the semiconductor component according to the ambient temperature, the ambient humidity, and the real-time temperature of the refrigerating chamber;

[0090] When the ambient humidity is less than or equal to the preset humidity threshold,

[0091] Or,

[0092] When the temperature of the refrigerating chamber is less than the preset value of the shutdown point temperature, turn off the semiconductor component.

[0093] The controller inside the refrigerator will obtain the ambient humidity data in real time and compare it with a preset threshold. The preset threshold is a humidity reference value set according to the actual usage environment of the refrigerator and the anti-condensation requirements. When the ambient humidity is greater than the preset threshold, it means that there is a high risk of condensation on the surface of the refrigerator's turning beam under the current environmental conditions. At this time, the controller activates the anti-condensation mechanism. Once it is determined that the anti-condensation function needs to be activated, the controller will control the semiconductor component 41 to operate at the first rotation speed. The semiconductor chip 413 in the semiconductor component 41 is the core component. Based on the thermoelectric effect of the semiconductor, when an electric current passes through the semiconductor chip 413, it will generate a cold end and a hot end. The refrigeration sheet 412 is connected to the semiconductor chip 413, transferring the cold quantity at the cold end to the refrigerating chamber, while the heat at the hot end needs to be dissipated.

[0094] The heat sink 414 and the cooling fan 415 are responsible for dissipating the heat generated at the hot end of the semiconductor chip 413 into the air duct. The heat sink 414 has a large surface area and can quickly absorb heat. The airflow generated when the cooling fan 415 operates accelerates the flow of heat in the air duct. At the same time, the refrigeration fan 411 sucks the air in the refrigerating chamber, enabling the air to exchange heat with the refrigeration sheet 412 and reducing the air temperature to achieve the refrigeration effect on the refrigerating chamber.

[0095] The air duct assembly 42 plays a key role in guiding the airflow throughout the process. The hot air processed by the heat sink 414 and the cooling fan 415 flows along the air duct assembly 42 and blows out from the air outlet 422. Since the air outlet 422 is located at the top of the turning beam 3, the hot air will directly blow on the surface of the turning beam 3, increasing the surface temperature of the turning beam 3 and making it higher than the dew point temperature of the ambient air. In this way, when the warm and humid air in the environment comes into contact with the turning beam 3, it will not liquefy and form condensation due to a sudden drop in temperature, thus achieving the purpose of anti-condensation.

[0096] During the operation of the semiconductor component 41, the controller will continuously monitor the ambient humidity. If the ambient humidity drops below the preset threshold, the controller will control the semiconductor component 41 to stop operating, avoiding energy waste, reducing the loss of the semiconductor component 41, and extending its service life.

[0097] As can be seen from the above embodiments, the present application provides an anti-condensation refrigerator and an anti-condensation method. The refrigerator includes: a refrigerating chamber, the refrigerating chamber includes a first door body and a second door body, and a turning beam is provided between the first door body and the second door body; a semiconductor air duct assembly provided at the top of the refrigerating chamber, the semiconductor air duct assembly includes a semiconductor assembly and an air duct assembly; the semiconductor assembly includes a refrigeration fan, a refrigeration chip, a semiconductor chip, a heat sink and a heat dissipation fan, the heat sink and the heat dissipation fan are fixed inside the air duct, and the refrigeration fan and the refrigeration chip are fixed inside the refrigerating chamber; the air duct assembly is fixed to the top of the refrigerating chamber, the air duct assembly includes an air inlet and an air outlet, the air outlet is located at the top of the turning beam, and the air inlet is on the side far from the turning beam; a controller provided inside the refrigerator, the controller is configured to: when the ambient humidity is greater than a preset threshold, control the semiconductor assembly to operate at a first speed. In the present application, the semiconductor assembly is arranged at the upper part of the refrigerating compartment, and the air duct is reasonably arranged, and the hot end air outlet is arranged at the entrance of the turning beam. Combined with the anti-condensation control of the refrigerator, the cooling capacity and heat of the semiconductor refrigeration are maximally utilized, the purpose of removing the heater on the surface of the turning beam is achieved, and the purpose of saving energy is achieved. At the same time, it can alleviate the insufficient refrigeration capacity at the upper part of the refrigerating chamber under high ambient temperature, reduce the problem of refrigeration fluctuation temperature difference, and improve the fresh-keeping effect of the refrigerating chamber.

[0098] For the similar parts between the embodiments provided in the present application, reference can be made to each other. The specific embodiments provided above are only several examples under the general concept of the present application, and do not constitute a limitation on the protection scope of the present application. For those skilled in the art, any other embodiments extended based on the solution of the present application without creative work belong to the protection scope of the present application.

Claims

1. An anti-condensation refrigerator, characterized in that: The refrigerator comprises: A refrigerating chamber, the refrigerating chamber comprising a first door body and a second door body, a turning beam being arranged between the first door body and the second door body; A semiconductor air duct assembly is arranged at the top of the cold storage chamber, and the semiconductor air duct assembly includes a semiconductor assembly and an air duct assembly; the semiconductor assembly includes a refrigeration fan, a refrigeration sheet, a semiconductor chip, a heat sink and a heat dissipation fan, the heat sink and the heat dissipation fan are fixed inside the air duct, and the refrigeration fan and the refrigeration sheet are fixed inside the cold storage chamber; The air duct assembly is fixed to the top of the refrigerating chamber, and the air duct assembly includes an air inlet and an air outlet, the air outlet is located at the top of the flip beam, and the air inlet is away from one side of the flip beam; A controller is disposed in the refrigerator, and the controller is configured as follows: When the ambient humidity is greater than a preset threshold, the semiconductor component is controlled to operate at a first rotation speed.

2. The anti-condensation refrigerator according to claim 1, characterized in that: The controller is also configured to: Get the ambient temperature, ambient humidity and real-time temperature of the cold storage room; Determine a preset humidity threshold corresponding to the ambient temperature based on the ambient temperature; When the ambient humidity is greater than a preset humidity threshold, controlling the semiconductor component to operate at a first speed; Otherwise, the semiconductor component is turned off.

3. The anti-condensation refrigerator according to claim 2, characterized in that: When the ambient humidity is greater than a preset humidity threshold, after controlling the semiconductor component to run at a first speed, the controller is further configured to: Collect the temperature of the cold room; When the temperature of the cold storage chamber is less than or equal to the shutdown point temperature, the ambient temperature, ambient humidity and the real-time temperature of the cold storage chamber are obtained again to adjust the first rotation speed of the semiconductor component according to the ambient temperature, ambient humidity and the real-time temperature of the cold storage chamber; Otherwise, the semiconductor component is turned off.

4. The anti-condensation refrigerator according to claim 3, characterized in that: Determining the preset humidity threshold corresponding to the ambient temperature based on the ambient temperature includes: If the ambient temperature is less than or equal to the first preset temperature, the preset humidity threshold is the first threshold; If the ambient temperature is greater than the first preset temperature and less than or equal to the second preset temperature, the preset humidity threshold is the second threshold; If the ambient temperature is greater than the second preset temperature, the preset humidity threshold is a third threshold.

5. The anti-condensation refrigerator according to claim 4, characterized in that: The first preset temperature is 16°C, and the second preset temperature is 25°C.

6. The anti-condensation refrigerator according to claim 4, characterized in that: The first threshold is 50%, the second threshold is 35%, and the third threshold is 15%.

7. The anti-condensation refrigerator according to claim 4, characterized in that: The shutdown point temperature = preset refrigeration temperature - first constant - second constant, the first constant ranges from 1 to 5, and the second constant ranges from 1 to 2.

8. The anti-condensation refrigerator according to claim 4, characterized in that: The first rotation speed is calculated based on the following formula: first rotation speed V1 = 0.1×ambient temperature×ambient humidity×preset basic rotation speed V×preset correction value a.

9. A method for preventing condensation, characterized in that: The method is applied to the refrigerator according to claim 1, and the method comprises: Get the ambient temperature, ambient humidity and real-time temperature of the cold storage room; Determine a preset humidity threshold corresponding to the ambient temperature based on the ambient temperature; When the ambient humidity is greater than a preset humidity threshold, controlling the semiconductor component to operate at a first speed; Collect the temperature of the cold room; When the temperature of the cold storage chamber is less than or equal to the shutdown point temperature, the ambient temperature, ambient humidity and the real-time temperature of the cold storage chamber are obtained again to adjust the first rotation speed of the semiconductor component according to the ambient temperature, ambient humidity and the real-time temperature of the cold storage chamber; When the ambient humidity is less than or equal to the preset humidity threshold, or, When the temperature of the refrigerating chamber is lower than a preset shutdown point temperature, the semiconductor component is turned off.

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