Refrigeration device and refrigeration appliance

Abstract

The application discloses a refrigeration device and a refrigeration equipment, comprising: a refrigeration chamber; a refrigeration component arranged in the refrigeration chamber; and a frosting and defrosting assembly arranged in the refrigeration chamber and used for frosting to reduce the humidity of the refrigeration chamber or defrosting to increase the humidity of the refrigeration chamber. By arranging the independent frosting and defrosting assembly in the refrigeration chamber, when the humidity of air entering the refrigeration chamber is high or the humidity of air passing through the refrigeration chamber is high due to defrosting of the refrigeration component, the frosting and defrosting assembly frosts to reduce the humidity of the air; when the humidity of air passing through the refrigeration chamber is low due to frosting of the refrigeration component, the frosting and defrosting assembly defrosts to increase the humidity of the air. Therefore, the frosting and defrosting assembly can increase or reduce the humidity of the air, and the air humidity adjusting function of the refrigeration device is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of refrigeration, and particularly relates to a refrigeration device and a refrigeration equipment. BACKGROUND

[0002] In a conventional refrigeration equipment, gaseous water molecules in air are condensed on a refrigeration component such as an evaporator during a refrigeration process, and the air humidity will always decrease. In the prior art, a humidification system is usually arranged to increase the air humidity, but such a device can only realize the humidification function and cannot decrease the humidity. When the evaporator is defrosted, the air humidity increases, and the humidification device cannot adjust the air humidity, so the air humidity adjustment mode is single. Therefore, a new humidity control mode is urgently needed to solve the above problems. SUMMARY

[0003] The application provides a refrigeration device and a refrigeration equipment to solve the technical problem that the existing refrigeration device can only humidify.

[0004] To solve the above technical problem, one technical solution adopted by the application is a refrigeration device, comprising: a refrigeration chamber; a refrigeration component arranged in the refrigeration chamber; and a frosting and defrosting assembly arranged in the refrigeration chamber and used for frosting to decrease the humidity of the refrigeration chamber or defrosting to increase the humidity of the refrigeration chamber.

[0005] To solve the above technical problem, one technical solution adopted by the application is a refrigeration equipment comprising any of the above refrigeration devices.

[0006] The application has the beneficial effect that when the air humidity entering the refrigeration chamber is high or the air humidity passing through the refrigeration chamber is high due to defrosting of the refrigeration component, the frosting and defrosting assembly frosts to decrease the air humidity; and when the air humidity passing through the refrigeration chamber is low due to frosting of the refrigeration component, the frosting and defrosting assembly defrosts to increase the air humidity. Therefore, the air humidity can be increased or decreased by using one frosting and defrosting assembly, and the air humidity adjustment function of the refrigeration device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0008] Figure 1 is a whole structure schematic diagram of a refrigeration device embodiment of the application;

[0009] Figure 2is a frosting principle diagram of a frosting defrosting assembly of an embodiment of the refrigeration device of the present application;

[0010] Figure 3 is a structure diagram of the refrigeration component and the second conductive component of an embodiment of the refrigeration device of the present application;

[0011] Figure 4 is a structure diagram of the refrigeration component and the second conductive component of an embodiment of the refrigeration device of the present application;

[0012] Figure 5 is a structure diagram of the refrigeration component and the second conductive component of an embodiment of the refrigeration device of the present application;

[0013] Figure 6 is a structure diagram of the refrigeration component and the second conductive component of an embodiment of the refrigeration device of the present application;

[0014] Figure 7 is a structure diagram of the second conductive component of an embodiment of the refrigeration device of the present application. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0016] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. Appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. Those skilled in the art will appreciate that the embodiments described herein are merely examples of the present application and are not the only way in which the present application can be practiced.

[0017] Please refer to Figures 1 to 7 , Figure 1 is a structure diagram of the refrigeration component and the second conductive component of an embodiment of the refrigeration device of the present application; Figure 2 is a frosting principle diagram of a frosting defrosting assembly of an embodiment of the refrigeration device of the present application; Figure 3 is a structure diagram of the refrigeration component and the second conductive component of an embodiment of the refrigeration device of the present application; Figure 4 is a structure diagram of the refrigeration component and the second conductive component of an embodiment of the refrigeration device of the present application; Figure 5 is a structure diagram of the refrigeration component and the second conductive component of an embodiment of the refrigeration device of the present application; Figure 6This is a schematic diagram of another arrangement of the refrigeration components and the second conductive component in one embodiment of the refrigeration device of this application. Figure 7 This is a schematic diagram of the structure of the second conductive element in an embodiment of the refrigeration device of this application.

[0018] One embodiment of this application provides a refrigeration device 100, such as... Figure 1 As shown, the system includes a refrigeration compartment 101, a refrigeration unit 110, and a defrosting assembly 120. The refrigeration compartment 101 is the compartment where the refrigeration unit 110 is located, and the refrigeration unit 110 is disposed in the refrigeration compartment 101 for heat exchange with the air passing through the refrigeration compartment 101. The defrosting assembly 120 is disposed in the refrigeration compartment 101 for either frosting to reduce the humidity of the refrigeration compartment 101 or defrosting to reduce the humidity of the refrigeration compartment 101. By providing an independent defrosting assembly 120 in the refrigeration compartment 101, when the humidity of the air entering the refrigeration compartment 101 is high, or when the humidity of the air passing through the refrigeration compartment 101 is high due to reasons such as the defrosting of the refrigeration unit 110, and the air humidity needs to be reduced, the defrosting assembly 120 frosts to reduce the air humidity; conversely, when the humidity of the air passing through the refrigeration compartment 101 is low due to the frosting of the refrigeration unit 110, and the air humidity needs to be increased, the defrosting assembly 120 defrosts to increase the air humidity. Thus, by using a defrosting component 120, the air humidity can be increased or decreased, thereby improving the air humidity regulation function of the refrigeration device 100.

[0019] In one embodiment, such as Figure 1 As shown, the defrosting assembly 120 and the cooling component 110 are arranged sequentially along the airflow direction within the cooling chamber 101, i.e., positioned at the upper or lower airflow outlet of the cooling component 110. This allows the defrosting assembly 120 to fully contact the air passing through the cooling chamber 101, frosting or defrosting to reduce or increase the humidity of the air passing through the cooling chamber 101. Of course, in other embodiments, the defrosting assembly 120 and the cooling component 110 may also be arranged sequentially along a direction perpendicular to or other than the airflow direction within the cooling chamber 101. Specifically, the defrosting assembly 120 is located at the upper air vent of the refrigeration unit 110. After the outside air enters the refrigeration chamber 101, it preferentially contacts the refrigeration unit 110, which facilitates the contact of the defrosting assembly 120 with the relatively high humidity air, making it easier for the defrosting assembly 120 to store frost. Furthermore, since the defrosting assembly 120 is located at the upper air vent of the refrigeration unit 110, the cooling capacity of the refrigeration unit 110 and the defrosting moisture are not easily affected by the airflow direction, thus making the defrosting assembly 120 easier to control independently, regardless of the state of the refrigeration unit 110, and making the control more convenient and precise.

[0020] like Figure 1As shown, the defrosting assembly 120 has various design options. In one embodiment, the defrosting assembly 120 includes at least two electrodes 121. An electric field is formed between adjacent energized electrodes 121, and the two electrodes 121 serve as different electrodes, generating an ion wind within the electric field. Since the electrodes 121 are located in the refrigeration chamber 101, their temperature is low. When external gas enters the refrigeration chamber 101, it condenses into frost on the surface of the electrodes 121, reducing air humidity. Conversely, when the electric field between adjacent electrodes 121 reaches a certain intensity, it can defrost the surface of the electrodes 121, increasing air humidity. By adjusting the voltage applied to the electrodes 121, the defrosting and frost-forming speeds of the electrodes 121 can be adjusted, thereby regulating air humidity.

[0021] First, let's introduce the principle of electric field defrosting, such as... Figure 2 As shown, a represents the direction of the electric field, b represents the direction of the airflow, c represents the direction of particle motion, and d represents water molecules or neutral particles. When the electric field between the two electrodes 121 reaches a certain strength, the charged particles (such as electrons or ions) scattered in the air accelerate under the influence of the strong electric field, thereby gaining enough energy to cause the air molecules to dissociate into electrons and ions when they collide. These new electrons and ions then collide with other air molecules, producing new charged particles, thus generating a large number of charged particles. Charged particles with opposite charges to the electrodes are attracted by the electrode charges and fly towards the electrodes, neutralizing the charges on the electrodes; charged particles with the same charges as the electrodes are repelled and fly away from the vicinity of the electrodes, carrying other molecules in a directional motion to form an ion wind with a certain speed. Because this ion wind differs from wind formed by air movement, it is primarily composed of high-speed charged particles. When these high-speed charged particles strike the frost surface of electrode 121, the energy they carry is absorbed by the water molecules on the frost surface, thereby increasing the kinetic energy of these water molecules and accelerating their melting. Simultaneously, the deposition of these charged particles on the frost surface also increases the thermal conductivity of the frost, allowing it to absorb heat from the surrounding environment more quickly, further accelerating its melting. Thus, the frost on the surface of electrode 121 melts, increasing air humidity.

[0022] When the defrosting assembly 120 needs to defrost, the electric field between the two electrodes 121 is turned on or increased, so that the defrosting speed of the defrosting assembly 120 is greater than the defrosting speed of the defrosting assembly 120, thereby defrosting the defrosting assembly 120 and increasing the air humidity.

[0023] When the defrosting assembly 120 needs to frost, the electric field between the two electrodes 121 is disconnected or reduced, so that the frosting speed of the defrosting assembly 120 is greater than the defrosting speed, thereby causing the defrosting assembly 120 to frost and reduce the air humidity.

[0024] When the air humidity reaches the preset air humidity, the voltage of the electrode 121 can also be set to a preset voltage, or work according to a preset working interval, so that the frosting speed and defrosting speed are balanced, and the preset air humidity is maintained.

[0025] Further, the refrigeration device 100 further comprises a humidity sensor 140 and a control member (not shown in the figure), which are coupled with the humidity sensor 140 and the frosting and defrosting assembly 120 respectively. The humidity sensor 140 is arranged at the air outlet end of the refrigeration chamber 101 to sense the air outlet humidity of the refrigeration chamber 101. The air outlet of the refrigeration chamber 101 directly exchanges heat and humidity with the outside, for example, the refrigeration device 100 is a refrigerator, and the refrigeration chamber 101 communicates with a refrigerating chamber or a freezing chamber. By arranging the humidity sensor 140 at the air outlet end of the refrigeration chamber 101, the air outlet humidity of the refrigeration chamber 101 can be directly sensed, so that the working of the frosting and defrosting assembly 120 can be accurately adjusted according to the air outlet humidity of the refrigeration chamber 101. Specifically, in response to the air outlet humidity being greater than a predetermined humidity, the control member controls the frosting and defrosting assembly 120 to frost; in response to the air outlet humidity being less than the predetermined humidity, the control member controls the frosting and defrosting assembly 120 to defrost; and in response to the air outlet humidity being equal to the predetermined humidity, the control member controls the frosting and defrosting assembly 120 to maintain a predetermined working state, so as to balance the frosting speed and the defrosting speed and maintain the predetermined humidity.

[0026] When the frosting and defrosting assembly 120 comprises at least two electrodes 121, when the humidity sensor 140 detects that the current humidity is less than the predetermined humidity, the control member controls the electrodes 121 to increase the difference voltage, so that the defrosting speed is greater than the frosting speed, and the air outlet humidity is increased. The increased difference voltage can be determined according to the current humidity, and the lower the current humidity, the higher the difference voltage. Of course, the difference voltage can also be a constant value. When the humidity sensor 140 detects that the current humidity is greater than the predetermined humidity, the control member controls the electrodes 121 to reduce the difference voltage, so that the defrosting speed is less than the frosting speed, and the air outlet humidity is reduced. The reduced difference voltage can be determined according to the current humidity, and the higher the current humidity, the higher the difference voltage. Of course, the difference voltage can also be a constant value. When the humidity sensor 140 detects that the current humidity is equal to the predetermined humidity, the control member controls the electrodes 121 to maintain a predetermined voltage, and the defrosting speed and the frosting speed of the electrodes 121 are dynamically balanced. The predetermined voltage is determined according to the actual situation and is related to the predetermined humidity set by the user.

[0027] Further, if the refrigeration device 100 is a refrigerator, the humidity sensor 140 can detect the air outlet humidity of the refrigeration chamber 101 after the user opens the door to add or take out food in the refrigerating chamber or the freezing chamber, and after the refrigeration member 110 defrosts. The humidity sensor 140 can also detect the air outlet humidity of the refrigeration chamber 101 at regular intervals, which is not limited here. Of course, the refrigeration device 100 can also be an air conditioner or other refrigeration devices.

[0028] In some embodiments, the electrode 121 comprises a first conductive plate, and adjacent first conductive plates are arranged in parallel to form an electric field. The ion wind formed by the electric field between two adjacent first conductive plates in parallel can effectively act on the surface of the first conductive plate to convert the ice crystal water molecules into gaseous water molecules, thereby melting the frost on the surface of the first conductive plate.

[0029] In order not to affect the air flow in the refrigeration compartment 101, the length direction of the first conductive plate is arranged along the air flow direction, so that the first conductive plate can be fully in contact with the air in the refrigeration compartment 101 to reduce humidity by frosting or increase humidity by defrosting, without affecting the air flow.

[0030] It should be noted that the first conductive plate can be a metal plate or a metal mesh or the like.

[0031] Further, the electrode 121 can be a conductive plate structure such as a metal plate or a metal mesh, and the electrode 121 is fixed in the refrigeration compartment 101 by a support (not shown in the figure). The support is a support rod structure connected to the inner wall of the refrigeration compartment 101 and the electrode plate 121 respectively, and the support is preferably made of an insulating material. Of course, the electrode 121 can also be formed on the compartment wall of the refrigeration compartment 101, and the electrode 121 is a conductive film material.

[0032] By forming an electric field through the electrode 121, the frost thickness of the frosting and defrosting assembly 120 and the defrosting speed during defrosting can be accurately controlled by adjusting the voltage of the electric field, thereby realizing accurate adjustment of air humidity. The frosting and defrosting process of the frosting and defrosting assembly 120 is independently controllable, the control cost of humidity adjustment is low, the method is simple, the adjustment efficiency is high, and the controllability is strong.

[0033] In other embodiments, the frosting and defrosting assembly 120 comprises a heating element arranged in the refrigeration compartment 101. Since the heating element is arranged in the refrigeration compartment 101, the heating element has a low temperature, and after the external gas enters the refrigeration compartment 101, it condenses into frost on the surface of the heating element, which can reduce the humidity of the air. When the heating element is working, the heat melts the frost on the surface of the heating element, increasing the humidity of the air. By adjusting the heating temperature of the heating element, the frosting speed and defrosting speed of the heating element can be adjusted, thereby adjusting the air humidity.

[0034] It should be noted that the heating element is different from the heating element arranged in the prior art for heating the refrigeration element 110. The heating element of the present application is used to melt the frost on the heating element to increase the humidity of the air.

[0035] In some embodiments, the frosting and defrosting assembly 120 is not frosted, for example, when the refrigeration device 100 is used for the first time or in other special cases, and the frosting and defrosting assembly 120 cannot increase the air humidity when it is necessary to increase the air humidity. The refrigeration device 100 further comprises a humidifying member (not shown in the figure) which is in communication with the refrigeration chamber 101, and the humidifying member humidifies the refrigeration chamber 101 to assist the humidifying effect of the frosting and defrosting assembly 120 when the frosting and defrosting assembly 120 is not frosted and cannot humidify.

[0036] Specifically, the humidifying member comprises a water container which is in communication with the refrigeration chamber 101 and a fan which is arranged on one side of the water container to blow the water vapor in the water container into the refrigeration chamber 101 to increase the humidity of the refrigeration chamber 101. The water in the water container can be added by a user.

[0037] Further, along the direction of the air flow in the refrigeration chamber 101, the humidifying member is arranged at the upwind port of the frosting and defrosting assembly 120. The water vapor of the humidifying member contacts the frosting and defrosting assembly 120 after entering the refrigeration chamber 101, and when the temperature of the frosting and defrosting assembly 120 is relatively low, part of the water vapor condenses on the frosting and defrosting assembly 120 to be used by the frosting and defrosting assembly 120 to adjust the humidity. The water vapor of the humidifying member can also flow out of the refrigeration chamber 101 along with the air flow at the air outlet end of the refrigeration chamber 101 to increase the air humidity at the air outlet end of the refrigeration chamber 101. Thus, the humidifying member can provide frost for the frosting and defrosting assembly 120 on the one hand, and can also assist the humidifying member to increase the air humidity in the refrigeration chamber 101 on the other hand.

[0038] In addition, the humidifying member is in communication with the drain port of the refrigeration chamber 101, that is, the water produced by the defrosting of the refrigeration member 110 can flow into and be stored in the humidifying member through the drain port, realizing the recycling of the water in the refrigeration chamber 101.

[0039] The refrigeration member 110 comprises an evaporator, which is preferably a finned evaporator with more sharp ends. Of course, the evaporator can also be a plate tube evaporator or other types of evaporators. The refrigeration member 110 can also be a cold end of a semiconductor refrigerator.

[0040] The following describes a defrosting method of the refrigeration member 110 of the refrigeration device 100 in an embodiment:

[0041] In yet another embodiment, as Figure 3As shown, the refrigeration device 100 comprises a refrigeration element 110 and a second conductive element 130. The second conductive element 130 is arranged apart from the refrigeration element 110. The refrigeration element 110 and the second conductive element 130 respectively serve as different electrodes to form an electric field between the second conductive element 130 and the refrigeration element 110. When the electric field between the second conductive element 130 and the refrigeration element 110 reaches a certain intensity, the charged particles (such as electrons or ions) in the air do accelerated motion under the action of the strong electric field, thereby obtaining sufficient energy so that the charged particles and air molecules collide to make the air molecules dissociate into electrons and ions. These new electrons and ions collide with other air molecules to generate new charged particles, so that a large number of charged particles are generated. The charged particles with opposite charges to the electrode charges are attracted to the electrode, and the charges on the electrode are neutralized; the charged particles with the same charges as the electrode charges are repelled and fly away from the electrode, and other molecules are driven to form an ion wind with a certain speed. Since the ion wind is different from the wind formed by air flow, it is mainly composed of high-speed moving charged particles. When these high-speed moving charged particles hit the frost surface of the refrigeration element 110, the energy carried by the charged particles is absorbed by the water molecules on the frost surface, thereby increasing the kinetic energy of the water molecules and accelerating the melting speed of the water molecules. At the same time, the deposition of the charged particles on the surface of the frost also improves the heat conduction rate of the frost, so that the frost can absorb heat from the surrounding environment more quickly and improve the melting speed.

[0042] The refrigeration device 100 in the embodiment of the present application forms an electric field between the second conductive element 130 and the refrigeration element 110, and generates and accelerates charged particles to form an ion wind when the electric field reaches a certain field strength. The water molecules after frosting are collided by the ions. Due to the conservation of energy, the kinetic energy of the ions is converted into the energy of the water molecules, so that the ice crystal water molecules are converted into gaseous water molecules. The melting speed of the frost on the surface of the refrigeration element 110 is fast, and the defrosting efficiency is high. Moreover, the ion wind directly acts on the frozen water molecules without energy dissipation process, so that the power consumption for defrosting is extremely low, and energy is saved.

[0043] The ion wind formed by the electric field can avoid the condensation of water molecules on the surface of the refrigeration element 110 to form frost, slow down the frosting speed, and accelerate the defrosting speed of the already frosted surface of the refrigeration element 110, thereby improving the overall defrosting efficiency.

[0044] It should be noted that the second conductive element 130 and the electrode 121 are controlled by separate voltages.

[0045] The second conductive member 130 includes a second conductive plate, which is arranged in parallel with the refrigeration member 110, so that an electric field is formed between the parallel second conductive plate and the refrigeration member 110, and the ion wind can effectively act on the surface of the refrigeration member 110 to convert the ice crystal water molecules into gaseous water molecules, thereby improving the melting speed of the frost on the surface of the refrigeration member 110.

[0046] In some embodiments, the vertical projection of the second conductive member 130 on the refrigeration member 110 completely falls on the refrigeration member 110, so that the ion wind formed between the second conductive member 130 and the refrigeration member 110 can completely act on the surface of the refrigeration member 110, thereby ensuring the defrosting efficiency. Preferably, the shape and size of the second conductive member 130 correspond to the refrigeration member 110, and the vertical projection of the second conductive member 130 on the refrigeration member 110 can completely cover the frost formation position of the refrigeration member 110, so that the electric field formed between the second conductive member 130 and the refrigeration member 110 can defrost all the frost formation positions of the refrigeration member 110, thereby ensuring the defrosting effect of the refrigeration member 110.

[0047] In order to form an electric field between the second conductive member 130 and the refrigeration member 110 while ensuring safety, one of the refrigeration member 110 and the second conductive member 130 is grounded as a positive electrode, and the other is connected to a negative voltage as a negative electrode. Thus, electrons are gathered in the electrode connected to the negative voltage, and when a predetermined negative high voltage is reached, the electrons fly out to the other electrode to form the ion wind.

[0048] In some embodiments, the second conductive member 130 includes a second conductive plate, which is arranged on one side of the refrigeration member 110, and the second conductive plate and the bracket of the refrigeration member 110 form an electric field to defrost the refrigeration member 110. In other embodiments, the second conductive member 130 includes two second conductive plates, which are arranged on the two sides of the refrigeration member 110, respectively, and the two second conductive plates and the refrigeration member 110 form electric fields, respectively, to defrost the refrigeration member 110 on the two sides, respectively, thereby effectively defrosting the refrigeration member 110 and improving the defrosting efficiency of the refrigeration member 110.

[0049] It should be noted that the second conductive plate can be a metal plate or a metal mesh or other conductive structure.

[0050] The refrigeration member 110 includes an evaporator, which is preferably a finned evaporator with many sharp tips. Of course, the evaporator can also be a plate tube evaporator or other type of evaporator. The refrigeration member 110 can also be the cold end of a semiconductor refrigerator.

[0051] Specifically, the arrangement of the second conductive member 130 and the refrigeration member 110 has at least the following schemes:

[0052] Firstly, as shown in FIG. 1, the second conductive member 130 is arranged on one side of the refrigeration member 110, and the second conductive member 130 and the refrigeration member 110 form an electric field to defrost the refrigeration member 110. Figure 3As shown, the second conductive element 130 includes a second conductive plate located on one side of the cooling element 110. The shape and size of the second conductive plate correspond to those of the cooling element 110. The cooling element 110 is connected to a negative voltage (negative pole), and the second conductive plate is grounded (positive pole), forming an electrostatic field between the cooling element 110 and the second conductive plate. Since the cooling element 110 is connected to a negative voltage, insulation is required at the inlet and outlet pipe ends of the cooling element 110 to ensure the normal and safe operation of the refrigeration equipment 100. In this application, an insulating element is provided at the ends of the inlet and outlet pipes of the cooling element 110. Specifically, an insulating pipe section can be provided at the ends of the inlet and outlet pipes of the cooling element 110 to prevent the current connected to the cooling element 110 from being conducted into the external pipes.

[0053] The second type, such as Figure 4 As shown, the second conductive element 130 includes two second conductive plates located on both sides of the cooling element 110. The shape and size of the second conductive plates correspond to those of the cooling element 110. The cooling element 110 is connected to a negative voltage as the negative electrode, and the two second conductive plates share a common ground as the positive electrode, forming an electrostatic field between the cooling element 110 and the two second conductive plates. Since the cooling element 110 is connected to a negative voltage, insulation is required at the inlet and outlet pipe ends of the cooling element 110 to ensure the normal and safe operation of the cooling device 100. In this application, an insulating element is provided at the end of the inlet and outlet pipes of the cooling element 110. Specifically, an insulating pipe section can be provided at the end of the inlet and outlet pipes of the cooling element 110 to prevent the current connected to the cooling element 110 from being conducted into the external pipes.

[0054] The third type, such as Figure 5 As shown, the second conductive element 130 includes a second conductive plate, which is located on one side of the cooling element 110. The shape and size of the second conductive plate correspond to those of the cooling element 110. The cooling element 110 is grounded as the positive terminal, and the second conductive plate is connected to a negative voltage as the negative terminal, thus forming an electrostatic field between the cooling element 110 and the second conductive plate.

[0055] The fourth type, such as Figure 6 As shown, the second conductive element 130 includes two second conductive plates located on both sides of the cooling element 110. The shape and size of the second conductive plates correspond to those of the cooling element 110. The cooling element 110 is grounded as the positive terminal, and the second conductive plates are connected to a negative voltage as the negative terminal, thus forming an electrostatic field between the cooling element 110 and the second conductive plates.

[0056] It is understood that an air duct (i.e., within the refrigeration chamber 101) is formed in the refrigeration device 100, and both the second conductive element 130 and the refrigeration element 110 are disposed within the air duct. When the humid, hot air passing through the air duct comes into contact with the refrigeration element 110, the water vapor condenses upon cooling and adheres to the refrigeration element 110, and the condensed water droplets further frost and freeze. In this application, the refrigeration element 110 and the second conductive element 130 are disposed within the air duct, forming an electric field between the second conductive element 130 and the refrigeration element 110. Once the electric field reaches a certain strength, it generates and accelerates the formation of ion wind from charged particles. The ion wind generated by the electric field defrosting method can prevent water molecules from condensing into frost on the surface of the refrigeration element 110, thus slowing down the frost formation rate; it can also accelerate the defrosting speed of the already frosted surface of the refrigeration element 110, and can also improve the overall defrosting efficiency.

[0057] Furthermore, in addition to being a conductive plate structure such as a metal plate or metal mesh, the second conductive element 130 can also be formed on the wall of the air duct, and the second conductive element 130 is a conductive thin film material.

[0058] As moisture in the air gradually condenses on the cooling element 110 in the direction from the upwind end of the air duct to the downwind end, the humidity of the air gradually decreases. Therefore, the frost thickness on the cooling element 110 gradually decreases in this direction. In some embodiments, such as Figure 7 As shown, when the cooling element 110 is grounded and the second conductive element 130 is connected to a negative voltage, the cooling device 100 includes at least two second conductive elements 130. These at least two second conductive elements 130 are arranged along the airflow direction in the duct, and the voltages connected to the at least two second conductive elements 130 are different. In the direction from the upper airflow outlet to the lower airflow outlet of the duct, the voltage connected to the second conductive element 130 gradually decreases, and the frost thickness of the cooling element 110 in the corresponding area gradually decreases. A higher intensity electric field is used to defrost the thicker frost areas of the cooling element 110, improving its defrosting effect; a lower intensity electric field is used to defrost the thinner frost areas of the cooling element 110, reducing energy consumption, and also reducing the defrosting frequency in this area. By setting at least two second conductive elements 130, each connected to an adjustable voltage, time-controlled and intensity-controlled defrosting of the corresponding area of ​​the cooling element 110 can be achieved, improving defrosting efficiency and reducing defrosting energy consumption.

[0059] It should be noted that an insulating partition is required between two adjacent second conductive components 130. All the second conductive components 130 are spliced ​​together into a whole through the insulating partition.

[0060] Another embodiment of this application provides a refrigeration device, including the refrigeration apparatus 100 in any of the above embodiments. The refrigeration device includes a refrigerator, an air conditioner, or a semiconductor refrigeration device, etc.

[0061] The terms "first", "second", "third", etc. in the present application are only used for descriptive purpose and cannot be construed as indicating or implying a quantity of technical features indicated. Thus, the features defined with "first", "second", "third" can include at least one of the features explicitly or implicitly. All directional indications (such as upper, lower, left, right, front, back, etc.) in the present application are only used for explaining the relative position relationship, movement condition, etc. between components, and if the specific posture (as shown in the drawings) changes, the directional indications also change accordingly. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to the process, method, product or device.

[0062] The above description is only an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A refrigeration apparatus, characterized by comprising: The refrigeration device comprises: a refrigeration chamber; a refrigeration component arranged in the refrigeration chamber; a frosting-defrosting assembly arranged in the refrigeration chamber, used for frosting to reduce the humidity in the refrigeration chamber or defrosting to increase the humidity in the refrigeration chamber; the frosting-defrosting assembly comprises at least two electrodes, an electric field is formed between adjacent electrodes with electricity, and an ion wind is formed in the electric field to promote defrosting; a humidity sensor arranged at an air outlet end of the refrigeration chamber to sense the humidity of air outlet of the refrigeration chamber; a control component coupled with the humidity sensor and the frosting-defrosting assembly respectively; in response to the humidity of air outlet being greater than a predetermined humidity, the control component controls the frosting-defrosting assembly to frost; in response to the humidity of air outlet being less than the predetermined humidity, the control component controls the frosting-defrosting assembly to defrost; and in response to the humidity of air outlet being equal to the predetermined humidity, the control component controls the frosting-defrosting assembly to maintain a predetermined working state.

2. The refrigeration appliance of claim 1, wherein, The frosting-defrosting assembly and the refrigeration component are arranged in sequence along the direction of air flow in the refrigeration chamber.

3. The refrigeration appliance of claim 1, wherein, The electrode comprises a first conductive plate, and the electrode is fixed in the refrigeration chamber by a support.

4. The refrigeration appliance of claim 1, wherein, The electrode is formed on a chamber wall of the refrigeration chamber.

5. The refrigeration appliance of claim 1, wherein, The refrigeration device comprises: a humidification component in communication with the refrigeration chamber to humidify the refrigeration chamber.

6. The refrigeration appliance of claim 5, wherein, The humidification component comprises: a water container in communication with the refrigeration chamber; a fan arranged at one side of the water container to blow water vapor in the water container into the refrigeration chamber.

7. The refrigeration appliance of claim 5, wherein, Along the direction of air flow in the refrigeration chamber, the humidification component is arranged at an upwind port of the frosting-defrosting assembly.

8. The refrigeration appliance of claim 1, wherein, The refrigeration component comprises an evaporator.

9. A refrigeration appliance characterized in that, The refrigeration device comprises the refrigeration device according to any one of claims 1-8.

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