Refrigeration equipment

Abstract

The invention belongs to the technical field of electrical equipment, and particularly relates to refrigeration equipment. The refrigeration equipment comprises a shell, an evaporator, a heating piece and an airflow generator, the evaporator is arranged in the shell, the heating piece is arranged in the shell and is configured to heat the evaporator, an air outlet is formed in the airflow generator, and the air outlet is configured to output airflow towards the evaporator. According to the refrigeration equipment, the heating piece heats the surrounding air, the heated air can heat the evaporator so as to defrost the evaporator, meanwhile, the airflow generated by the airflow generator is output to the evaporator through the air outlet, the airflow circulation speed near the evaporator is increased, the heat exchange speed between the evaporator and hot air is increased, and the heat exchange efficiency is improved. Meanwhile, the air flow output through the air outlet can directly act on the surface of the evaporator, so that part of frost attached to the surface of the evaporator can be blown off, and the defrosting efficiency of the evaporator is improved.

Description

Technical Field

[0001] This application belongs to the technical field of electrical equipment, and particularly relates to a refrigeration device. Background Art

[0002] An evaporator is an indispensable component in the operation of air conditioners and refrigerators. The evaporator can exchange heat with the outside air, thereby reducing the temperature of the surrounding air. During the operation of the evaporator, low-temperature frosting easily occurs on the outside of the evaporator. This frosting phenomenon is due to the low temperature on the outside during heat exchange of the evaporator, and there is a large amount of moisture in the air. The low temperature condenses the moisture in the air into frost and covers the outer surface of the evaporator, thereby reducing the heat exchange efficiency of the evaporator.

[0003] Currently, the evaporator generally uses an electric heating defrosting method, that is, a heating element is arranged at the bottom of the evaporator, and relying on the natural convection that occurs between the hot air flow generated when the heating element works and the evaporator, the defrosting of the evaporator surface is accelerated. However, only by defrosting through the natural convection of the hot air flow, the circulation speed of the hot air flow is slow, resulting in low defrosting efficiency of the evaporator and affecting the working efficiency of the evaporator. Summary of the Invention

[0004] The purpose of this application is to at least solve the problem of low defrosting efficiency on the surface of the evaporator. This purpose is achieved in the following way:

[0005] A first aspect of this application provides a refrigeration device, which includes:

[0006] A housing;

[0007] An evaporator, disposed inside the housing;

[0008] A heating element, which is disposed inside the housing and is configured to heat the evaporator;

[0009] An air flow generator, which has an air outlet configured to output an air flow towards the evaporator.

[0010] For the refrigeration device according to this application, when it is necessary to defrost the surface of the evaporator, the heating element is operated. The heating element heats the surrounding air, and the heated air can heat the evaporator, thereby defrosting the evaporator. At the same time, the air flow generated by the air flow generator is output to the evaporator through the air outlet, accelerating the air flow circulation speed near the evaporator, thereby accelerating the heat exchange speed between the evaporator and the hot air, improving the defrosting efficiency of the evaporator. At the same time, the air flow output through the air outlet can directly act on the surface of the evaporator, thereby blowing off some of the ice and frost attached to the surface of the evaporator, and further accelerating the defrosting efficiency of the evaporator.

[0011] In addition, the refrigeration device according to the present application may further have the following additional technical features:

[0012] In some embodiments of the present application, the evaporator has a first surface with the largest area, and the air outlet is configured to output air flow towards the first surface.

[0013] In some embodiments of the present application, the refrigeration device further includes a fan assembly. The air inlet of the fan assembly and the heating element are respectively arranged on two sides of the evaporator along a first direction, and the air outlet is arranged between the air inlet and the heating element along the first direction, where the first direction is parallel to the first surface.

[0014] In some embodiments of the present application, the air flow generator includes:

[0015] A box body, an installation cavity is formed inside the box body, and the air outlet is formed on the surface of the box body facing the evaporator, and the air outlet is communicated with the installation cavity;

[0016] An oscillation element, the oscillation element is arranged inside the box body, and the oscillation element is configured to be able to oscillate the gas and generate an oscillating air flow.

[0017] In some embodiments of the present application, the oscillation element includes an oscillation film, and the oscillation film is arranged intersecting with the air flow output direction of the air outlet.

[0018] In some embodiments of the present application, the oscillation film includes a piezoelectric film.

[0019] In some embodiments of the present application, the oscillation film includes a magnetic film, and the oscillation element further includes an induction coil, and the induction coil is configured to drive the magnetic film to oscillate in the energized state.

[0020] In some embodiments of the present application, the oscillation element further includes an induction coil, the oscillation film includes a film body and a magnetic part, the magnetic part is connected to the film body, and the induction coil is configured to drive the magnetic part to oscillate in the energized state.

[0021] In some embodiments of the present application, along the direction of the air outlet towards the evaporator, the opening size of the air outlet gradually decreases.

[0022] In some embodiments of the present application, a convex part protruding towards the outside of the housing is formed on the plate surface of the housing opposite to the evaporator, and the inner surface of the convex part facing the evaporator is recessed with respect to the inner wall surface of the housing and forms an installation cavity for installing the air flow generator.

[0023] In some embodiments of the present application, the refrigeration device includes a refrigerator. A freezer compartment is provided inside the refrigerator, and the inner liner of the freezer compartment forms the housing. The evaporator, the heating element, and the air flow generator are respectively disposed inside the inner liner.

[0024] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the description. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the following specifically enumerates the specific embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. Among them:

[0026] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. Among them:

[0027] Figure 1 is a schematic structural diagram of a refrigeration device according to an embodiment of the present application;

[0028] Figure 2 is Figure 1 a top view of the freezer compartment of the refrigeration device in;

[0029] Figure 3 is Figure 2 an exploded structural diagram of the freezer compartment in;

[0030] Figure 4 is Figure 2 a sectional structural diagram taken along line A-A of the freezer compartment in;

[0031] Figure 5 is Figure 4 an enlarged structural diagram of part B in;

[0032] Figure 6 is Figure 3 a schematic structural diagram of the evaporator in;

[0033] Figure 7 is Figure 3 a schematic structural diagram of the air flow generator in;

[0034] Figure 8 is Figure 3Schematic structural diagram of the middle air guide cover.

[0035] The reference numerals in the accompanying drawings are as follows:

[0036] 1. Refrigeration equipment;

[0037] 10. Box body; 11. Refrigerating chamber; 12. Freezing chamber; 121. Housing; 122. Back panel; 123. Protrusion; 124. Refrigerating air duct inlet; 125. Refrigerating air duct outlet; 13. Door body; 14. Drawer;

[0038] 20. Evaporator; 21. First side plate; 22. Second side plate; 23. Heat exchange tube; 24. Heat exchange fin; 25. First surface;

[0039] 30. Heating element;

[0040] 40. Airflow generator; 41. Box body; 411. Air outlet; 42. Oscillating element; 421. Oscillating film; 422. Induction coil;

[0041] 50. Freezing air duct assembly; 51. Mounting plate; 52. Cover plate; 53. First air outlet; 54. Second air outlet;

[0042] 60. Fan assembly; 61. Air inlet;

[0043] 70. Air guide cover; 71. Main board part; 72. First baffle part; 73. Second baffle part; 74. First opening; 75. Second opening. Detailed implementation manners

[0044] The exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present application can be more thoroughly understood and the scope of the present application can be completely conveyed to those skilled in the art.

[0045] It should be understood that the terms used herein are for the purpose of describing particular example embodiments only and are not intended to be limiting. Unless the context clearly dictates otherwise, the singular forms "a", "an", and "the" as used herein may also include the plural forms. The terms "comprises", "comprising", "includes", and "including" are inclusive and thus specify the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an execution order is explicitly stated. It should also be understood that additional or alternative steps may be used.

[0046] Although the terms first, second, third, etc. may be used herein to describe multiple elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or section from another. Unless the context clearly indicates otherwise, terms such as "first", "second", and other numerical terms when used herein do not imply an order or sequence. Thus, the first element, component, region, layer, or section discussed below may be referred to as the second element, component, region, layer, or section without departing from the teachings of the example embodiments.

[0047] For ease of description, spatial relative relationship terms may be used herein to describe the relationship of one element or feature shown in the figures to another element or feature, such as "inner", "outer", "inside", "outside", "below", "beneath", "above", "over", etc. Such spatial relative relationship terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "below" or "beneath" other elements or features will then be oriented "above" or "over" the other elements or features. Thus, the example term "below" can include both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein are to be interpreted accordingly.

[0048] To at least solve the problem of low defrosting efficiency on the surface of the evaporator, the present application proposes a refrigeration device having an evaporator. This refrigeration device can be a refrigerator, an air conditioner, or other electrical appliances with refrigeration functions. For the convenience of description, the present application only takes the refrigeration device as a refrigerator for example. According to the refrigeration device of the present application, when it is necessary to defrost the surface of the evaporator, the air flow circulation speed near the evaporator can be accelerated, thereby accelerating the heat exchange speed between the evaporator and the hot air, improving the defrosting efficiency of the evaporator. At the same time, the air flow can be directly applied to the surface of the evaporator, so that part of the ice and frost attached to the surface of the evaporator can be blown off, thereby accelerating the defrosting efficiency of the evaporator.

[0049] Combined with Figures 1 to 7 As shown in the figure, in some embodiments of the present application, the refrigeration device 1 includes a housing 121, an evaporator 20, a heating element 30, and an air flow generator 40. The evaporator 20 is disposed inside the housing 121. The heating element 30 is disposed inside the housing 121 and is configured to heat the evaporator 20. The air flow generator 40 forms an air outlet 411, and the air outlet 411 is configured to output an air flow toward the evaporator 20.

[0050] An accommodation cavity is formed inside the housing 121, and the evaporator 20, the heating element 30, and the air flow generator 40 can be respectively disposed inside the housing 121. When refrigeration is required, the evaporator 20 absorbs the temperature of the surrounding air, thereby reducing the temperature inside the housing 121, and then achieving a refrigeration effect. During the operation of the evaporator 20, the low temperature inside the housing 121 condenses the moisture in the air into frost, which covers the outer surface of the evaporator 20, thereby reducing the heat exchange efficiency of the evaporator 20. In order to improve the heat exchange efficiency of the evaporator 20, when it is necessary to defrost the surface of the evaporator 20. At this time, the heating element 30 can be operated. The heating element 30 heats the surrounding air, and the heated air can heat the evaporator 20, thereby defrosting the evaporator 20. At the same time, the air flow generated by the air flow generator 40 is output to the evaporator 20 through the air outlet 411, accelerating the air flow circulation speed near the evaporator 20, thereby accelerating the heat exchange speed between the evaporator 20 and the hot air, improving the defrosting efficiency of the evaporator 20. At the same time, the air flow output through the air outlet 411 can directly act on the surface of the evaporator 20, so that part of the ice and frost attached to the surface of the evaporator 20 can be blown off, thereby accelerating the defrosting efficiency of the evaporator 20.

[0051] In some embodiments of the present application, the refrigeration device 1 can be a refrigerator. The refrigerator includes a cabinet 10, and the cabinet 10 forms the overall appearance structure of the refrigerator. Inside the cabinet 10, a refrigerating chamber 11 and a freezing chamber 12 can be formed, and the refrigerating chamber 11 and the freezing chamber 12 can be arranged in sequence along the vertical direction. Specifically, the refrigerating chamber 11 can be provided above the freezing chamber 12, a door body 13 is provided at the entrance of the refrigerating chamber 11, and at least one drawer 14 is provided at the entrance of the freezing chamber 12. The housing 121 can be the inner liner of the freezing chamber 12, and the air flow generator 40 can be arranged on the back panel 122 of the housing 121 and is disposed opposite to the evaporator 20. In some embodiments of the present application, the refrigerator may also include only the freezing chamber 12. In some embodiments of the present application, the freezing chamber 12 can also be provided above the refrigerating chamber 11, or the freezing chamber 12 and the refrigerating chamber 11 can be arranged side by side in the horizontal direction.

[0052] Combined Figures 2 to 7 As shown, in some embodiments of the present application, the evaporator 20 has a first surface 25 with the largest area, and the air outlet 411 is configured to output air flow towards the first surface 25.

[0053] In some embodiments of the present application, the evaporator 20 includes a first side plate 21 and a second side plate 22. The first side plate 21 and the second side plate 22 are respectively arranged to extend along a first direction, and the first direction is consistent with the vertical direction or is arranged at an angle to the vertical direction. And the plate surfaces of the first side plate 21 and the second side plate 22 are arranged opposite to each other along a second direction. The evaporator 20 further includes a heat exchange tube 23, and the heat exchange tube 23 is coiled between the first side plate 21 and the second side plate 22 and is respectively connected to the first side plate 21 and the second side plate 22. A heat exchange medium, which can be a refrigerant, is provided inside the heat exchange tube 23. During the refrigeration process of the evaporator 20, the liquid refrigerant absorbs the heat outside the heat exchange tube 23 to form a gaseous state, and reduces the temperature of the air outside the heat exchange tube 23, thereby achieving the refrigeration effect. In order to improve the heat exchange effect between the heat exchange tube 23 and the surrounding air, in some embodiments of the present application, the evaporator 20 further includes heat exchange fins 24, and the heat exchange fins 24 are arranged outside the heat exchange tube 23, so as to increase the heat exchange area between the evaporator 20 and the surrounding air through the heat exchange fins 24 and improve the refrigeration efficiency of the evaporator 20.

[0054] In some embodiments of the present application, the evaporator 20 is of a substantially rectangular structure and has two surfaces arranged opposite to each other along the first direction, two surfaces arranged opposite to each other along the second direction, and two surfaces arranged opposite to each other along the third direction. Among them, the two surfaces of the evaporator arranged opposite to each other along the third direction are the first surface 25, and have the largest surface area among the multiple surfaces of the evaporator 20.

[0055] Since the first surface 25 has the largest heat exchange area, more frost is likely to condense on the first surface 25 during the refrigeration process of the evaporator 20. Configuring the air outlet 411 to output air flow towards the first surface 25 can maximize the contact area between the air flow flowing out of the air outlet 411 and the evaporator 20, thereby improving the defrosting efficiency of the air flow generator 40 for the evaporator 20.

[0056] Combined with Figures 1 to 7 As shown, in some embodiments of the present application, the minimum included angle a formed between the air flow output direction of the air outlet 411 and the first surface 25 ranges from 0° ≤ a ≤ 90°.

[0057] Wherein, Figure 5 and Figure 7 the direction indicated by the black straight arrow in is the air flow output direction of the air outlet 411, that is, the axis of the air outlet 411. When the value range of a is set to 0° < a ≤ 90°, that is, an included angle is formed between the axis of the air outlet 411 and the first surface 25, so that the air flow flowing out of the air outlet 411 can directly act on the first surface 25, accelerating the defrosting efficiency of the first surface 25. When the value of a is 0°, that is, when the axis of the air outlet 411 is parallel to the first surface 25, the air outlet 411 and the heating element 30 can be jointly arranged on the same side of the evaporator 20 at this time. Specifically, the air outlet 411 and the heating element 30 can be jointly arranged at the bottom of the evaporator 20, so that under the action of the air flow flowing out of the air outlet 411, the hot air flow generated by the heating element 30 can quickly flow towards the evaporator 20, improving the heat exchange speed between the hot air flow and the evaporator 20.

[0058] Combined with Figures 1 to 7 As shown, in some embodiments of the present application, the refrigeration device 1 further includes a fan assembly 60. The air inlet 61 of the fan assembly 60 and the heating element 30 are respectively arranged on both sides of the evaporator 20 along the first direction, and the air outlet 411 is arranged between the air inlet 61 and the heating element 30 along the first direction, wherein the first direction is parallel to the first surface 25.

[0059] In some embodiments of the present application, the fan assembly 60 can generate an air flow through its own operation, so as to continuously output the low-temperature air generated by the evaporator 20. Among them, the fan assembly 60 is arranged above the evaporator 20 along the first direction. When the fan assembly 60 operates, the air flow near the evaporator 20 moves towards the direction of the air inlet 61 under the negative pressure generated by the fan assembly 60, and is thus absorbed and output by the fan assembly 60. The heating element 30 is arranged below the evaporator 20 along the first direction. When the evaporator 20 needs to be defrosted, the heating element 30 heats the surrounding air, and the heated air flows upward to the evaporator 20 by natural convection, so as to defrost the evaporator 20. The air outlet 411 is arranged between the air inlet 61 and the heating element 30 along the first direction and is arranged opposite to the first surface 25 of the evaporator 20. The air flow flowing out of the air outlet 411 can directly act on the first surface 25, thereby accelerating the air flow at the first surface 25, and further accelerating the heat exchange speed between the evaporator 20 and the hot air, and improving the defrosting efficiency of the evaporator 20.

[0060] Combined with Figures 1 to 7 As shown, in some embodiments of the present application, the refrigeration device 1 further includes a freezing air duct assembly 50, and at least part of the fan assembly 60 is arranged in the freezing air duct assembly 50. The air inlet 61 of the fan assembly 60 is communicated with the outside of the freezing air duct assembly 50, and the air outlet of the fan assembly 60 is communicated with the air outlet of the freezing air duct assembly 50, so as to direct and output the cold air generated by the evaporator 20 through the freezing air duct assembly 50.

[0061] Specifically, the freezing air duct assembly 50 includes a mounting plate 51 and a cover plate 52. Among them, the mounting plate 51 is connected to the inner wall surface of the housing 121, so as to fix the freezing air duct assembly 50. The cover plate 52 is arranged on the side of the mounting plate 51 facing the evaporator 20, and a freezing air duct is formed between the cover plate 52 and the mounting plate 51. The cover plate 52 is provided with a mounting opening, and the fan assembly 60 is arranged in the freezing air duct, and the air inlet 61 of the fan assembly 60 extends out of the freezing air duct through the mounting opening, so as to absorb the cold air generated by the evaporator 20.

[0062] Combined with Figures 1 to 7 As shown, in some embodiments of the present application, the mounting plate 51 is provided with a first air outlet 53 communicated with the freezing air duct, and the first air outlet 53 is arranged corresponding to the drawer 14, so as to make part of the cold air generated by the evaporator 20 flow to the drawer 14 through the first air outlet 53, and further freeze the food in the drawer 14. The bottom of the freezing air duct assembly 50 is also provided with a return air opening (not shown in the figure) communicated with the drawer 14. After the cold air exchanges heat with the food in the drawer 14, it can return to the bottom of the evaporator 20 through the return air opening, and form a circulating cold air flow under the action of the evaporator 20 and the fan assembly 60, and is output to the drawer 14 again.

[0063] Combined Figures 1 to 7 As shown, in some embodiments of the present application, a second air outlet 54 is formed between the top of the mounting plate 51 and the top of the cover plate 52. The second air outlet 54 is communicated with the refrigerating chamber 11, so that another part of the cold air generated by the evaporator 20 flows to the refrigerating chamber 11 through the second air outlet 54, and then refrigerates the food in the refrigerating chamber 11. A refrigerating air duct inlet 124 and a refrigerating air duct outlet 125 are further provided at the top of the housing 121. The refrigerating air duct inlet 124 is correspondingly arranged with the second air outlet 54. The cold air flow in the freezing air duct can enter the refrigerating chamber 11 through the second air outlet 54 and the refrigerating air duct inlet 124 in sequence. After the cold air flow exchanges heat with the food in the refrigerating chamber 11, it enters the housing 121 through the refrigerating air duct outlet 125, and finally flows to the evaporator 20, and forms a circulating cold air flow under the action of the evaporator 20 and the fan assembly 60, and is output to the refrigerating chamber 11 again.

[0064] Combined Figures 1 to 7 As shown, in some embodiments of the present application, the refrigeration device 1 further includes a wind guide cover 70. The wind guide cover 70 is arranged inside the housing 121 and between the back plate 122 and the evaporator 20. The air flow flowing out from the refrigerating air duct outlet 125 flows to the bottom of the evaporator 20 under the guiding action of the wind guide cover 70, so as to increase the contact area between this part of the air flow and the evaporator 20 during the refrigeration process of the evaporator 20 and improve the refrigeration efficiency of the evaporator 20.

[0065] Combined Figures 2 to 8 As shown, in some embodiments of the present application, the wind guide cover 70 includes a main board part 71, a first baffle part 72 and a second baffle part 73. Among them, the first baffle part 72 and the second baffle part 73 are respectively connected to the two side edges of the main board part 71. The main board part 71 is arranged opposite to the back plate 122, and the first baffle part 72 and the second baffle part 73 are respectively abutted against the back plate 122, so as to form a wind guide cavity for guiding the air flow between the wind guide cover 70 and the back plate 122. A first opening 74 is provided on the main board part 71. The air flow generator 40 can be arranged in the wind guide cavity and opposite to the first opening 74, or the air flow generator 40 can pass through the first opening 74 to output air flow to the evaporator 20. A second opening 75 is further formed between the top of the main board part 71, the top of the first baffle part 72 and the top of the second baffle part 73. The second opening 75 is arranged opposite to the refrigerating air duct outlet 125. The air flow flowing out of the refrigerating chamber 11 can flow into the wind guide cavity through the refrigerating air duct outlet 125 and the second opening 75 in sequence.

[0066] Combined Figures 1 to 8As shown, in some embodiments of the present application, a protruding portion 123 protruding towards the outside of the housing 121 is further provided on the back plate 122. The surface of the protruding portion 123 facing the inside of the housing 121 is recessed with respect to the inner wall surface of the housing 121, so as to form an installation cavity for installing the air flow generator 40. The air flow generator 40 is disposed in the installation cavity of the protruding portion 123, thereby reducing the space occupied by the air flow generator 40 in the housing 121, and further increasing the occupied space of the drawer 14 and the volume of the drawer 14, so that the freezer 12 can store more food.

[0067] Combined with Figures 1 to 7 As shown, in some embodiments of the present application, the air flow generator 40 includes a box body 41 and a vibration element 42. An installation cavity is formed inside the box body 41. An air outlet 411 is formed on the surface of the box body 41 facing the evaporator 20, and the air outlet 411 is communicated with the installation cavity. The vibration element 42 is disposed inside the box body 41, and the vibration element 42 is configured to be able to oscillate the gas and generate an oscillating air flow.

[0068] In some embodiments of the present application, the box body 41 is connected to the back plate 122. Specifically, the box body 41 can be snap-fitted or bonded in the installation cavity of the protruding portion 123. An air outlet 411 is formed on the surface of the box body 41 facing away from the back plate 122, and the air outlet 411 is communicated with the installation cavity. The oscillating air flow generated by the vibration element 42 can be output to the surface of the evaporator 20 through the air outlet 411, so as to defrost the evaporator.

[0069] In the present application, the air flow generated by the vibration element 42 acts on the surface of the evaporator 20, accelerating the air flow velocity on the surface of the evaporator 20, thereby improving the heat exchange efficiency between the evaporator 20 and the hot air generated by the heating element 30.

[0070] In some embodiments of the present application, the air flow generator can also be set as a fan. The air outlet end of the fan is disposed opposite to the evaporator 20, and the air flow output from the fan is directly applied to the evaporator 20, which can also accelerate the air flow velocity near the evaporator 20. However, compared with other air flow output components such as fans, the oscillating air flow generated by the vibration element 42 has a certain oscillating wave, which can resonate with the evaporator 20, so as to directly shake off the frost attached to the surface of the evaporator 20. And since the vibration element 42 is not in direct contact with the evaporator 20, compared with the vibration element being connected to the evaporator 20 and driving the evaporator 20 to vibrate together, it can reduce the generation of noise and at the same time reduce the damage of the evaporator 20 during the vibration process.

[0071] Combined with Figures 1 to 7 As shown, in some embodiments of the present application, the vibration element 42 includes a vibration film 421, and the vibration film 421 is arranged intersecting with the air flow output direction of the air outlet 411.

[0072] Specifically, the circumferential edge of the oscillating film 421 can be connected to the inner wall surface of the box body 41. Since the oscillating film 421 is arranged to intersect with the air flow output direction of the air outlet 411, that is, to intersect with the axis of the air outlet 411, when the oscillating film 421 vibrates in a direction perpendicular to its own plane, the generated oscillating air flow can flow out of the box body 41 through the air outlet 411 and thus act on the evaporator 20.

[0073] Combined with Figures 1 to 7 As shown, in some embodiments of the present application, the oscillating film 421 includes a piezoelectric film.

[0074] When the piezoelectric film is in an energized state, it can reciprocally vibrate in a direction perpendicular to its own plane, thereby generating an oscillating air flow and acting on the evaporator 20.

[0075] Combined with Figures 1 to 7 As shown, in some embodiments of the present application, the oscillating film 421 includes a magnetic film, and the oscillating element 42 further includes an induction coil 422, and the induction coil 422 is configured to drive the magnetic film to oscillate in an energized state.

[0076] The induction coil 422 can generate a magnetic field in an energized state, and the magnetic film can reciprocally vibrate in a direction perpendicular to its own plane under the action of the magnetic field, thereby generating an oscillating air flow and acting on the evaporator 20.

[0077] Combined with Figures 1 to 7 As shown, in some embodiments of the present application, the oscillating element 42 further includes an induction coil 422, the oscillating film 421 includes a film body and a magnetic member, the magnetic member is connected to the film body, and the induction coil 422 is configured to drive the magnetic member to oscillate in an energized state.

[0078] The induction coil 422 can generate a magnetic field in an energized state, and the magnetic member can drive the film body to reciprocally vibrate in a direction perpendicular to its own plane under the action of the magnetic field, thereby generating an oscillating air flow and acting on the evaporator 20. Among them, the film body can be a magnetic film or a non-magnetic film.

[0079] Combined with Figures 1 to 7 As shown, in some embodiments of the present application, along the direction of the air outlet 411 towards the evaporator 20, the opening size of the air outlet 411 gradually decreases.

[0080] At the same flow rate, the smaller the cross-sectional area, the faster the gas flow velocity. By gradually reducing the opening size of the air outlet 411 along the flowing direction of the outlet air flow, the gas flow velocity at the air outlet 411 can be increased, thereby accelerating the air flow near the evaporator 20. At the same time, the high-speed air flow acts on the surface of the evaporator 20, and can directly blow off some of the frost attached to the surface of the evaporator 20, achieving the effect of rapid defrosting.

[0081] Combined with Figures 1 to 8 As shown, in some embodiments of the present application, the refrigeration device 1 further includes a condenser (not shown in the figure) and a compressor (not shown in the figure). The evaporator 20, the condenser and the compressor together form the refrigeration system of the refrigeration device 1. Among them, the compressor is used to compress the refrigerant into a high-temperature and high-pressure gas. The condenser is used to cool the high-temperature and high-pressure gaseous refrigerant into a high-pressure liquid, and a large amount of heat is released in this process. The evaporator 20 absorbs the surrounding heat and converts the refrigerant from a liquid state to a gaseous state, thereby reducing the surrounding environmental temperature. During the operation of the refrigeration device 1, the refrigerant continuously circulates and flows between the compressor, the condenser and the evaporator 20, thereby achieving the refrigeration effect.

[0082] As mentioned above, only the specific preferred embodiments of the present application are described, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A refrigeration device, characterized in that, Comprising: A housing; An evaporator disposed inside the housing; A heating element disposed inside the housing and configured to heat the evaporator; An air flow generator having an air outlet configured to output an air flow toward the evaporator.

2. The refrigeration device according to claim 1, characterized in that, The evaporator has a first surface with the largest area, and the air outlet is configured to output an air flow toward the first surface.

3. The refrigeration device according to claim 2, characterized in that, The refrigeration device further includes a fan assembly. The air inlet of the fan assembly and the heating element are respectively disposed on two sides of the evaporator along a first direction, and the air outlet is disposed between the air inlet and the heating element along the first direction, wherein the first direction is parallel to the first surface.

4. The refrigeration device according to claim 1, characterized in that, The air flow generator includes: A box body having an installation cavity formed inside. The surface of the box body facing the evaporator forms the air outlet, and the air outlet communicates with the installation cavity; An oscillation element disposed inside the box body and configured to be able to oscillate the gas and generate an oscillating air flow.

5. The refrigeration device according to claim 4, characterized in that, The oscillation element includes an oscillation film, and the oscillation film is disposed intersecting the air flow output direction of the air outlet.

6. The refrigeration device according to claim 5, characterized in that, The oscillation film includes a piezoelectric film.

7. The refrigeration device according to claim 5, characterized in that The oscillation film includes a magnetic film, and the oscillation element further includes an induction coil configured to drive the magnetic film to oscillate in an energized state.

8. The refrigeration device according to claim 5, characterized in that, The oscillation element further includes an induction coil. The oscillation film includes a film body and a magnetic member connected to the film body, and the induction coil is configured to drive the magnetic member to oscillate in an energized state.

9. The refrigeration device according to claim 1, characterized in that, Along the direction of the air outlet toward the evaporator, the opening size of the air outlet gradually decreases.

10. The refrigeration device according to claim 1, characterized in that, The plate surface of the housing opposite to the evaporator forms a convex portion protruding toward the outside of the housing. The inner surface of the convex portion facing the evaporator is recessed with respect to the inner wall surface of the housing and forms an installation cavity for installing the air flow generator.

11. The refrigeration device according to any one of claims 1 to 10, characterized in that, The refrigeration device includes a refrigerator. A freezer is provided inside the refrigerator, and the liner of the freezer forms the housing. The evaporator, the heating element, and the air flow generator are respectively disposed inside the liner.

Images