Refrigeration equipment

Abstract

The invention discloses refrigeration equipment, which comprises a box body, a refrigerating chamber, a refrigerating device, a refrigerating device and a control device, and is characterized in that a refrigerating chamber is formed in the box body; the evaporator is arranged in the refrigeration chamber; the fan assembly is arranged in the refrigeration chamber; the fan assembly comprises a machine shell, an air inlet and an air outlet are formed in the machine shell, an air cavity is formed in the machine shell, and the air outlet faces the evaporator; the centrifugal fan is located in the air cavity; and the multiple flow guide plates are located in the air cavity, the multiple flow guide plates are arranged in the width direction of the machine shell at intervals and divide the air cavity into multiple parallel flow guide channels, inlets of the flow guide channels face the edge of the centrifugal fan, and outlets of the flow guide channels extend to the air outlet. The inlets of the flow guide channels face the edge of the centrifugal fan, the outlets of the flow guide channels extend to the air outlet, the flow guide plates guide airflow formed by the centrifugal fan, the airflow is guided into the parallel flow guide channels, and the air outlet uniformity of the air outlet is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a refrigeration device. Background Art

[0002] With the current economic development and the continuous improvement of people's living standards, large supermarkets, shopping malls, office buildings, and other places are equipped with refrigerated display cabinets. These cabinets have a low-temperature interior and can be used to store and display items such as bottled beverages, mineral water, snacks, and fruit to attract customers and sell them. The main components of a refrigerated display cabinet include an insulated cabinet, an insulated door, a refrigeration system, an electrical system, and application accessories. Existing refrigerated display cabinets generally use centrifugal fans with volute pressure to deliver air. This results in extremely uneven airflow at the outlet, making it difficult to maintain temperature uniformity within the cabinet.

[0003] The existing Chinese patent with publication number CN215675990U discloses a refrigerator, including a cabinet body, which defines a refrigeration chamber and an air duct, the air duct including a return air duct, a first air duct and a second air duct connected in sequence, the return air duct is connected to the return air port of the refrigeration chamber, and the second air duct is connected to the air inlet of the refrigeration chamber; an evaporator is arranged in the second air duct; a centrifugal fan is arranged in the first air duct, and the air outlet end of the first air duct is defined as an inner air duct and an outer air duct, and the outlet air is evenly diverted and blown to the evaporator through the inner air duct and the outer air duct.

[0004] The above-mentioned refrigerator uses a diverter duct structure that is coordinated with the centrifugal fan to evenly divert the outlet air through the duct and blow it toward the evaporator. However, the volute structure needs to be implemented in an eccentric manner, so that the installation position of the centrifugal fan is biased toward one side of the refrigerator, causing the outlet air to blow obliquely toward the evaporator, making the air circulation in the refrigerator eccentric and the temperature inside the refrigerator uneven. At the same time, due to the pressurization effect of the volute, the rotational resistance of the centrifugal fan increases, the air volume loss is large, and the working efficiency of the centrifugal fan is reduced. In view of this, how to design a technology that evens out the air so that the circulating air and the evaporator have more sufficient heat exchange is the technical problem to be solved by the present invention.

[0005] The above information disclosed in this background technology is only used to increase the understanding of the background technology of this application. Therefore, it may contain information that does not constitute the prior art known to ordinary technicians in this field. Summary of the Invention

[0006] In response to the problems pointed out in the background technology, the present application provides a refrigeration device that achieves uniform air output from the fan assembly to enable more complete heat exchange between the circulating air and the evaporator.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: In a first aspect, the present application provides a refrigeration device, comprising: a box body, in which a refrigeration compartment is formed; an evaporator disposed in the refrigeration compartment; and a fan assembly, which is arranged in the refrigeration compartment and located on one side of the evaporator; Wherein, the fan assembly includes: a housing having an air inlet and an air outlet formed thereon, and an air cavity formed therein, wherein the air inlet, the air cavity and the air outlet are sequentially connected, and the air outlet faces the evaporator; a centrifugal fan rotatably disposed within the housing and located in the air cavity; and A plurality of guide plates are arranged in the casing and located in the air cavity. The plurality of guide plates are arranged at intervals along the width direction of the casing and divide the air cavity into a plurality of parallel guide channels. The inlet of the guide channel faces the edge of the centrifugal fan, and the outlet of the guide channel extends to the air outlet.

[0008] In some embodiments of the present application, at least a portion of the guide plates are in an arc-shaped structure, and the guide plates located on both sides of the centrifugal fan are symmetrically arranged.

[0009] In some embodiments of the present application, the guide plate includes: a first guide section, the first guide section being close to an edge of the centrifugal fan, the first guide section being in an arc-shaped structure and curving in a direction away from the centrifugal fan; and The second guide section extends to the air outlet, has a plate-shaped structure, and is connected to the first guide section.

[0010] In some embodiments of the present application, the guide plates are arranged at equal intervals along the width direction of the housing, and the guide plates are perpendicular to the rear wall surface of the housing.

[0011] In some embodiments of the present application, the fan assembly further includes: An intermediate baffle is arranged in the air cavity and is located on the side of the centrifugal fan away from the air outlet. The intermediate baffle is fixedly connected to the casing and extends to the edge of the centrifugal fan; the intermediate baffle is configured to disconnect the guide channel between the centrifugal fan and the inner wall of the air cavity, so that the airflow formed by the centrifugal fan is blown toward the air outlet on both sides of the intermediate baffle.

[0012] In some embodiments of the present application, the housing includes: A front cover, wherein the air inlet is formed on the front cover, and the position of the air inlet corresponds to the position of the centrifugal fan, and the air inlet is provided with an air inlet grille; The rear shell is detachably connected to the front cover, and the front cover and the rear shell together enclose the air cavity and the air outlet. The air outlet is located at the bottom of the air cavity, and the air cavity is arched.

[0013] In some embodiments of the present application, a wiring hole is formed on the rear shell at a position corresponding to the centrifugal fan, and the wiring hole is configured for connecting the centrifugal fan to a circuit.

[0014] In some embodiments of the present application, the rear shell is independently provided and fixed to the inner wall surface of the box body, or the rear shell and the box body are formed as one piece; and the guide plate is formed on the front cover and / or the rear shell.

[0015] In some embodiments of the present application, the fan assembly is located above the evaporator, and along the thickness direction of the casing, there is a gap between the evaporator and the front and rear side walls of the air outlet, so that the airflow from the centrifugal fan passes through the guide channel and blows to both sides of the evaporator.

[0016] In a second aspect, the present application provides a refrigeration device, comprising: A box body comprising an outer shell and an inner liner, wherein a refrigeration chamber is formed in the inner liner; an evaporator disposed in the refrigeration compartment; and a fan assembly, which is disposed in the refrigeration compartment and located above the evaporator; Wherein, the fan assembly includes: a housing having an air inlet and an air outlet formed thereon, and an air cavity formed therein, wherein the air inlet, the air cavity and the air outlet are sequentially connected, and the air outlet faces the evaporator; a centrifugal fan rotatably disposed within the housing and located in the air cavity; and A guide structure is arranged in the wind cavity and divides the wind cavity into multiple parallel guide channels. The guide structure is configured to blow the airflow formed by the centrifugal fan to the air outlet through multiple parallel guide channels to improve the uniformity of the air outlet.

[0017] Compared with the prior art, the advantages and positive effects of the present invention are as follows: the fan assembly includes a casing, a centrifugal fan and a plurality of guide plates, the air outlet of the casing faces the evaporator, and when the fan assembly blows air toward the evaporator through the air outlet, cold air is generated to cool the refrigeration compartment; the plurality of guide plates are arranged in an air cavity within the casing and spaced apart along the width direction of the casing, dividing the air cavity into a plurality of parallel guide channels, the inlets of the guide channels face the edges of the centrifugal fans, and the outlets of the guide channels extend to the air outlet, the guide plates divide and guide the airflow generated by the centrifugal fans, so that the airflow is guided to the air outlet along the various guide channels, thereby improving the uniformity of the air outlet, enabling sufficient heat exchange between the airflow and the evaporator, and thus improving the heat exchange efficiency; At the same time, it avoids the use of the existing volute pressurization method to discharge air. On the one hand, the air outlet is directed directly to the evaporator, which is beneficial to improving the uniformity of air circulation in the cabinet; on the other hand, the rotation resistance of the centrifugal fan and the air volume loss are small, which is beneficial to ensuring the working efficiency of the centrifugal fan.

[0018] Other features and advantages of the present invention will become more apparent after reading the detailed description of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 A schematic structural diagram of an embodiment of a refrigeration device provided by the present invention; Figure 2 A schematic structural diagram of the box provided by the present invention; Figure 3 A schematic diagram of the internal structure of a refrigeration device according to an embodiment of the present invention; Figure 4 The basis provided by the present invention Figure 1 Schematic diagram of the cross-sectional structure of the refrigeration equipment; Figure 5 A schematic diagram of the connection structure between the fan assembly and the evaporator provided by the present invention; Figure 6 A bottom view of the connection state of the fan assembly and the evaporator provided by the present invention; Figure 7 This is a structural schematic diagram of an embodiment of a fan assembly provided by the present invention; Figure 8 This is a second structural diagram of an embodiment of a fan assembly provided by the present invention; Figure 9 This is a third structural diagram of an embodiment of a fan assembly provided by the present invention; Figure 10 This is one of the schematic diagrams of the disassembled structure of the fan assembly provided by the present invention; Figure 11 A schematic structural diagram of an embodiment of a rear housing of a fan assembly provided by the present invention; Figure 12 A schematic structural diagram of an embodiment of a front cover of a fan assembly provided by the present invention; Figure 13 This is a schematic structural diagram of the internal air outlet state of the fan assembly provided by the present invention.

[0021] Reference numerals: 1. Box body; 11. Refrigeration compartment; 12. Outer shell; 13. Inner liner; 131. Support part; 2. Evaporator; 21. Partition; 3. Fan assembly; 31. Casing; 311. Air inlet; 312. Air cavity; 313. Air outlet; 3131. Air guide channel; 314. Front cover; 3141. Air inlet grille; 3142. Pressed profile; 3143. Connection hole; 3144. Connection part; 3145. Connection outer edge; 315. Rear cover; 3151. Wiring hole; 3152. Cable management clip; 316. Connector; 3 161. Buckle; 3162. Claw; 317. Fixing portion; 318. Fixing hole; 32. Centrifugal fan; 321. Mounting portion; 33. Guide plate; 331. First guide section; 332. Second guide section; 3321. Limiting groove; 333. Concave plate; 3331. Inner plate; 3332. Outer plate; 3333. Groove; 334. Convex plate; 34. Intermediate baffle; 4. Internal air supply channel; 5. Thermostat. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0023] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0024] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0026] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0027] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0028] The refrigeration equipment in the present application generally includes a box body, a door body and a refrigeration system, wherein at least one refrigeration compartment is formed in the box body, and the refrigeration compartment is opened and closed through the door body to meet the requirements of storing and retrieving items.

[0029] The refrigeration system includes a compressor, condenser, expansion valve, and evaporator, which are connected by piping to form a refrigerant circulation loop. The refrigeration system uses the compressor, condenser, expansion valve, and evaporator to perform the refrigeration cycle of the refrigeration equipment. The refrigeration cycle involves a series of processes, including compression, condensation, expansion, and evaporation, to cool the items inside the cabinet.

[0030] First, low-temperature, low-pressure refrigerant gas enters the compressor, which compresses it into high-temperature, high-pressure refrigerant gas and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser for condensation. In the condenser, the refrigerant condenses into a liquid phase, and the heat is released into the surrounding environment through the cooling fan.

[0031] The expansion valve expands the high-temperature, high-pressure liquid refrigerant condensed in the condenser into a low-temperature, low-pressure liquid refrigerant. The low-temperature, low-pressure liquid refrigerant enters the evaporator, where it evaporates, returning the low-temperature, low-pressure refrigerant gas to the compressor. The evaporator cools the gas environment within the cabinet by utilizing the latent heat of evaporation.

[0032] Combine Figures 1 to 13 As shown, in a first aspect, an embodiment of the present disclosure provides a refrigeration device, which includes a box body 1, an evaporator 2 and a fan assembly 3.

[0033] Combine Figure 1 As shown, the front side of the box body 1 is provided with an opening, and a door is provided at the opening of the box body 1 to reduce the loss of coldness in the box body 1 and provide a way for users to take items out of the box body 1. Figure 2 and Figure 3 As shown, the box body 1 includes an outer shell 12 and an inner liner 13 arranged in the outer shell 12. In order to ensure the low temperature state inside the box body 1, an insulation layer is filled between the outer shell 12 and the inner liner 13, and the insulation layer adopts foam material.

[0034] A refrigeration compartment 11 is formed within the inner liner 13 and is used to store items requiring refrigeration. To improve the internal space utilization of the refrigeration compartment 11, a shelf or interlayer shelf is provided on the inner wall of the inner liner 13. The shelf or interlayer shelf does not contact the evaporator 2. When items are placed on the shelf, an external air supply channel (not shown) is formed between the items and the evaporator 2.

[0035] The evaporator 2 is a blowing plate evaporator or a fin evaporator.

[0036] It should be noted that the evaporator 2 of the present application includes but is not limited to a blowing plate evaporator and a fin evaporator.

[0037] Combine Figure 2 As shown, the evaporator 2 is arranged in the refrigeration compartment 11. When the refrigerant passes through the evaporator 2, it absorbs heat, thereby cooling the air blowing through the evaporator 2 to form cold air.

[0038] In order to improve the connection stability between the evaporator 2 and the inner tank 13, support portions 131 extending into the refrigeration compartment 11 are formed on the rear wall of the inner tank 13 corresponding to the positions of the four corners of the evaporator 2. The four corners of the evaporator 2 are respectively fixed on the support portions 131 to achieve the connection and fixation of the evaporator 2.

[0039] The height of the support portion 131 determines the distance between the evaporator 2 and the rear wall of the inner container 13. Fasteners allow for a detachable connection between the evaporator 2 and the support portion 131. Due to the presence of the support portion 131, a gap exists between the evaporator 2 and the inner wall of the inner container 13, forming an internal air supply channel 4 between the evaporator 2 and the inner wall of the inner container 13.

[0040] Combine Figure 1 、 Figure 3 and Figure 5 As shown, the fan assembly 3 is arranged in the refrigeration compartment 11 and is located on one side of the evaporator 2; Exemplarily, the fan assembly 3 is located directly above the evaporator 2 .

[0041] Among them, combined Figure 1 and Figure 6 As shown, the fan assembly 3 includes a casing 31 , a centrifugal fan 32 and a plurality of guide plates 33 .

[0042] The housing 31 is fixedly mounted on the inner liner 13. An air inlet 311 and an air outlet 313 are formed on the housing 31. An air cavity 312 is formed in the housing 31. The air inlet 311, the air cavity 312, and the air outlet 313 are sequentially connected to form an air flow channel. The air outlet 313 is formed at the bottom of the air cavity 312 and faces the evaporator 2. In this way, air flows from the air inlet 311, passes through the air cavity 312, and is blown downwardly toward the evaporator 2 through the air outlet 313. The centrifugal fan 32 is located in the air cavity 312 and is rotatably mounted on the front and rear side walls of the housing 31 .

[0043] Combine Figure 7 and Figure 8As shown, a plurality of guide plates 33 are provided in the housing 31 and are located in the air cavity 312 . The plurality of guide plates 33 are arranged at intervals along the width direction of the housing 31 and divide the air cavity 312 into a plurality of parallel guide channels 3131 .

[0044] The center of the centrifugal fan 32 is located on the axis of the air cavity 312, and the guide plates 33 on both sides of the centrifugal fan 32 are arranged symmetrically, so that the guide channels 3131 on both sides of the centrifugal fan 32 are arranged symmetrically, which can make the air outlet 313 outlet more uniform.

[0045] The inlet of the guide channel 3131 faces the edge of the centrifugal fan 32 to facilitate the airflow thrown out by the centrifugal fan 32 to enter the guide channel 3131 . The outlet of the guide channel 3131 extends to the air outlet 313 .

[0046] Specifically: multiple guide plates 33 are arranged at intervals along the width direction of the casing 31, and the guide plates 33 have a function of diverting the airflow. The guide plates 33 divide the air cavity 312 into multiple parallel guide channels 3131. The inlet of the guide channel 3131 faces the edge of the centrifugal fan 32, and the outlet of the guide channel 3131 extends to the air outlet 313. Multiple guide plates 33 have a function of diverting and guiding the airflow formed by the centrifugal fan 32, and guide the airflow to each guide channel 3131 and guide it to the air outlet 313 for discharge. The air volume and wind speed on each guide channel 3131 are more evenly distributed, which improves the uniformity of the air outlet 313, is conducive to sufficient heat exchange between the circulating air and the evaporator 2, thereby improving the heat exchange efficiency.

[0047] At the same time, the present application adopts a casing form with a channel air-guiding structure, the air outlet 313 on the casing 31 has a large span, and the guide channels on both sides of the centrifugal fan 32 are symmetrically arranged, the wind pressure is relatively balanced, and the centrifugal fan 32 avoids the use of a volute boosting method, so that the air volume loss of the centrifugal fan 32 is small, which is conducive to ensuring the working efficiency of the centrifugal fan 32.

[0048] By providing the guide plate 33 , the air blown out from all directions by the centrifugal fan 32 is evenly delivered to the air outlet 313 through the guide channel 3131 , making the air volume of the air outlet 313 more uniform, thereby more fully exchanging heat with the evaporator 2 .

[0049] In some embodiments of the present application, Figure 6 As shown, at least part of the guide plates 33 are in an arc-shaped structure, and the guide plates 33 located on both sides of the centrifugal fan 32 are symmetrically arranged.

[0050] Specifically, at least some of the guide plates 33 have an arc-shaped structure, and the guide plates 33 on both sides of the centrifugal fan 32 are arranged symmetrically, facilitating the arrangement of the guide plates 33 around the centrifugal fan. The guide channels 3131 formed by adjacent guide plates 33 are also arc-shaped channels. Since the airflow is formed at the edge of the centrifugal fan 32, it is convenient to guide the airflow into the guide channels 3131. At the same time, the overall structure is made more compact, the span of the air outlet 313 is maximized, and the air outlet 313 has a more uniform airflow.

[0051] In addition, the guide plate 33 is located on the side of the centrifugal fan 32 near the air outlet 313 and has a straight plate structure. The air outlet direction is almost perpendicular to the evaporator, so that the air circulation in the refrigerator is balanced, which is convenient for guiding the air and makes the temperature distribution in the refrigerator more uniform.

[0052] In some embodiments of the present application, Figure 12 and Figure 13 As shown, the fan assembly 3 further includes an intermediate baffle 34 .

[0053] The intermediate baffle 34 is arranged in the air cavity 312 and is located on the side of the centrifugal fan 32 away from the air outlet 313. The intermediate baffle 34 is fixedly connected to the casing 31 and extends to the edge of the centrifugal fan 32; the intermediate baffle 34 is configured to disconnect the guide channel between the centrifugal fan 32 and the inner wall of the air cavity 312, so that the airflow formed by the centrifugal fan 32 is blown toward the air outlet 313 on both sides of the intermediate baffle 34.

[0054] Specifically, there is a gap between the top of the centrifugal fan 32 and the inner wall of the casing 31. By setting an intermediate baffle 34 in the air cavity 312, the intermediate baffle 34 is located on the side of the centrifugal fan 32 away from the air outlet 313, and the intermediate baffle 34 is fixedly connected to the casing 31. In this way, when the centrifugal fan 32 rotates, the air flow in the air cavity 312 is blown out from both sides of the intermediate baffle 34, thereby preventing the air flow from being carried in a single direction by the centrifugal fan 32, which is conducive to improving the uniform blowing of the air flow toward the air outlet 313, and then evenly blowing toward the evaporator 2.

[0055] In some embodiments of the present application, the guide plate 33 is formed on the front cover 314 and / or the rear shell 315 , and the middle baffle 34 is formed on the front cover 314 and / or the rear shell 315 .

[0056] Specifically, it includes the following forms: In the first form, the guide plate 33 and the intermediate baffle 34 are all formed on the front cover 314; In the second form, the guide plate 33 and the intermediate baffle 34 are all formed on the rear shell 315; In a third form, a portion of the guide plate 33 and the middle baffle 34 is formed on the front cover 314 , and the other portion of the guide plate 33 and the middle baffle 34 is formed on the rear shell 315 .

[0057] The guide plate 33 and the intermediate baffle 34 are partially formed on the front cover 314, and the other portion is formed on the rear shell 315 as an example for explanation. In order to improve the positioning accuracy of the guide plate 33 during installation and improve the sealing performance of the connection between the guide plate 33 and the front cover 314 and the rear shell 315. Figure 12 and Figure 13 As shown, the guide plates 33 each include a concave plate portion 333 and a convex plate portion 334 . The concave plate portion 333 is formed on the rear shell 315 , and the convex plate portion 334 is correspondingly formed on the front cover 314 .

[0058] Combine Figure 11 As shown, the concave plate portion 333 includes an inner plate portion 3331 and an outer plate portion 3332, a groove 3333 is formed between the inner plate portion 3331 and the outer plate portion 3332, and the convex plate portion 334 is adapted to the groove 3333. When the front cover 314 and the rear shell 315 are covered together, the convex plate portion 334 is at least partially inserted into the groove 3333, thereby forming a complete guide plate 33.

[0059] The process of forming the intermediate baffle 34 is similar to the above-mentioned case and will not be described in detail here.

[0060] This makes it easier to carry out integrated production, processing and manufacturing according to actual needs, which helps reduce costs.

[0061] In some embodiments of the present application, Figure 10 and Figure 12 The concave portion 333 and the convex portion 334 of the guide plate 33 each include a first guide segment 331 and a second guide segment 332 .

[0062] The first guide section 331 is close to the edge of the centrifugal fan 32. The first guide section 331 has an arc-shaped structure and bends in a direction away from the centrifugal fan 32. The airflow is distributed at the edge of the centrifugal fan 32 to avoid the airflow generated by the centrifugal fan 32 from gathering, so that the airflow flows more evenly to each guide channel 3131, thereby making the air output more uniform.

[0063] The second guide section 332 extends to the air outlet 313 and has a plate-like structure. The second guide section 332 is connected to the first guide section 331 . The connection between the second guide section 332 and the first guide section 331 is smooth, thereby reducing wind resistance formed at the connection.

[0064] In some embodiments of the present application, the second guide sections 332 of the guide plate 33 are arranged at equal intervals along the width direction of the housing 31 , and the second guide sections 332 are perpendicular to the rear wall of the housing 31 .

[0065] Specifically, the second guide sections 332 are arranged at equal intervals, so that the widths of adjacent guide channels 3131 remain substantially consistent, which is conducive to more uniform air outlet.

[0066] In some embodiments of the present application, Figure 10 As shown, the housing 31 includes a front cover 314 and a rear housing 315 .

[0067] Combine Figure 7 As shown, an air inlet 311 is formed on the front cover 314 , and the position of the air inlet 311 corresponds to the position of the centrifugal fan 32 .

[0068] An air inlet grille 3141 is provided on the air inlet 311 to prevent foreign matter from entering the housing 31 .

[0069] Combine Figure 8 and Figure 9 As shown, in order to improve the assembly efficiency of the housing 31, the rear shell 315 and the front cover 314 are detachably connected, and the front cover 314 and the rear shell 315 together enclose an air cavity 312 and an air outlet 313. The air cavity 312 is arched, curved or semicircular.

[0070] Specifically, by configuring the casing 31 to include a front cover 314 and a rear casing 315, it is helpful to reduce the difficulty of processing and facilitate production processing and subsequent assembly; an air inlet 311 is formed on the front cover 314, and the position of the air inlet 311 corresponds to the position of the centrifugal fan 32. The air inlet 311 is located in the axial position of the centrifugal fan 32, that is, at the front side of the casing 31, so that the centrifugal fan 32 can draw air from the refrigeration compartment 11 through the air inlet 311.

[0071] The rear shell 315 and the front cover 314 together enclose an air cavity 312 and an air outlet 313. The air outlet 313 is located at the lower part of the casing. The air cavity 312 is arched, which reduces internal dead angles and avoids the formation of rotating vortices. It is beneficial for the airflow formed by the centrifugal fan 32 to blow more fully and completely toward the air outlet 313, thereby improving the air outlet efficiency.

[0072] In some embodiments of the present application, the air inlet 311 is circular.

[0073] Specifically, by setting the air inlet 311 to be circular, the shape of the air inlet 311 matches the shape of the centrifugal fan 32, thereby increasing the flow area of ​​the air inlet 311, improving the air intake efficiency, and allowing the air flow to enter the impeller of the centrifugal fan 32 more smoothly. The air flow remains stable, reducing the intake noise and vibration of the centrifugal fan 32.

[0074] In order to improve the safety of use, Figure 10 and Figure 12 As shown, an air inlet grille 3141 is provided on the air inlet 311 to prevent debris from entering the centrifugal fan 32 and interfering with the operation of the centrifugal fan 32 .

[0075] The size of the front cover 314 is larger than that of the rear shell 315. A press profile 3142 is formed on the edge of the front cover 314. A connecting hole 3143 is opened on the press profile 3142. The fastener passes through the connecting hole 3143 to fix the entire fan assembly 3 on the top wall and rear side wall of the inner tank 13.

[0076] In other embodiments of the present application, a connecting outer edge 3145 is formed on the front cover 314, and a connecting portion 3144 that is compatible with the connecting outer edge 3145 is formed on the side of the rear shell 315 close to the front cover 314, and the connecting outer edge 3145 is detachably connected to the connecting portion 3144.

[0077] In certain embodiments of the present application, the front cover 314 and the rear shell 315 are fixedly connected via a connector 316 , wherein the connector 316 includes a buckle 3161 and a claw 3162 .

[0078] The buckle 3161 is provided on one of the front cover 314 and / or the rear cover 315; The claw 3162 is provided on the other one of the front cover 314 and / or the rear shell 315 ; the claw 3162 is adapted to the buckle 3161 , and the claw 3162 is clamped in the buckle 3161 to fix the front cover 314 and the rear shell 315 in connection.

[0079] Specifically, in order to improve the connection strength between the front cover 314 and the rear shell 315 , multiple groups of connecting members 316 are provided, and the multiple groups of connecting members 316 are arranged at intervals on the outer peripheral wall of the housing 31 .

[0080] Of course, the connection between the front cover 314 and the rear shell 315 includes but is not limited to the above-mentioned buckle 3161 and claw 3162.

[0081] Specific, combined Figure 9 、 Figure 10 and Figure 12 As shown, a plurality of buckles 3161 are arranged at intervals on the connecting portion 3144 , and claws 3162 are provided at corresponding positions on the connecting outer edge 3145 . In the connected state, the claws 3162 are connected to the corresponding buckles 3161 .

[0082] The front cover 314 and the rear shell 315 are made of plastic. The connecting portion 3144 is integrally formed with the front cover 314 , and the connecting outer edge 3145 is integrally formed with the rear shell 315 to reduce processing costs.

[0083] An avoidance recess is formed on the rear shell 315 and extends to a side away from the centrifugal fan 32. The shape of the avoidance recess is adapted to the shape of the centrifugal fan 32. The centrifugal fan 32 is detachably connected between the front cover 314 and the rear shell 315 by fasteners such as fastening screws.

[0084] Combine Figure 10 As shown, a plurality of mounting portions 321 are formed on the peripheral side of the mounting base of the centrifugal fan 32, mounting holes are formed on the mounting portions 321, and a fixing portion 317 is formed on the front cover 314 and / or the rear shell 315, and the mounting portion 321 is detachably connected to the fixing portion 317 by fasteners.

[0085] The plurality of mounting portions 321 are arranged at equal intervals to ensure the stability of the installation and provide stable support for the centrifugal fan 32 during operation.

[0086] Combine Figure 11 As shown, in some embodiments of the present application, the fixing portion 317 is a connecting protrusion formed on one side of the rear shell 315 close to the front cover 314 and extending outward, a hole is formed on the connecting protrusion, and a fixing hole 318 is formed at a corresponding position on the back side of the rear shell 315.

[0087] During installation, first align the various mounting portions 321 on the centrifugal fan 32 with the corresponding fixing portions 317, then pass the fastening screws through the fixing holes 318 on the outer back side of the rear shell 315, and connect the screws through the fixing holes 318 and the mounting holes to the corresponding fixing portions 317 on the front cover to achieve the connection and fixation of the centrifugal fan 32.

[0088] In some embodiments of the present application, a wiring hole 3151 is provided at a position corresponding to the centrifugal fan 32 on the rear shell 315. The wiring hole 3151 is configured to provide an external wiring harness for the centrifugal fan 32, and the output from the wiring hole 3151 is connected to the power supply equipment.

[0089] In addition, the refrigeration equipment also includes a thermostat 5, which automatically controls the start and stop of the refrigeration compressor within a certain temperature difference range according to the temperature requirements of the refrigerator, so that the temperature in the refrigeration equipment is maintained within the set value range.

[0090] In some embodiments of the present application, a wire management clip 3152 is further provided on the rear shell 315 . The wire management clip 3152 corresponds to the position of the wiring hole 3151 and is used to organize and fix the connection lines of the centrifugal fan 32 to avoid line clutter.

[0091] In some embodiments of the present application, the rear shell 315 is independently provided and fixed to the inner wall surface of the box body 1 , or the rear shell 315 and the box body 1 are integrally formed, and the guide plate 33 is formed on the front cover 314 and / or the rear shell 315 .

[0092] Specifically, by independently setting and fixing the rear shell 315 to the inner wall surface of the box body 1, or forming the rear shell 315 and the inner liner 13 of the box body 1 as one piece, production and processing are facilitated and costs are reduced.

[0093] In other embodiments of the present application, the front cover 314 is made of plastic or sheet metal.

[0094] In some embodiments of the present application, the rear shell 315 is made of plastic material. For example, the rear shell 315 is made of polystyrene material.

[0095] In some embodiments of the present application, the front cover 314 is a flat plate structure as a whole, and the front cover 314 faces the opening of the refrigeration equipment, which is overall beautiful; the rear shell 315 is a shell structure that is larger than the centrifugal fan 32.

[0096] In some embodiments of the present application, Figure 5 and Figure 6 As shown, the fan assembly 3 is located above the evaporator 2. Along the thickness direction of the casing 31, there are gaps between the evaporator 2 and the front and rear side walls of the air outlet 313, so that the airflow from the centrifugal fan 32 passes through the guide channel 3131 and blows to both sides of the evaporator 2, so as to facilitate sufficient heat exchange between the airflow and the evaporator 2.

[0097] Combine Figure 4 As shown, in some embodiments of the present application, a partition 21 is formed above the evaporator 2 for dividing the airflow output from the air outlet 313 into two parts, which are respectively transported downward from the front and rear sides of the evaporator 2.

[0098] The partition portion 21 at least partially extends into the air outlet 313 , and the airflow output from the air outlet 313 is transported downward in parallel along both sides of the evaporator 2 .

[0099] The partition 21 can be integrally formed above the evaporator 2 , or can be pre-fixed on the evaporator 2 by mechanical connection and connected together with the evaporator 2 in the inner tank.

[0100] The length of the partition 21 matches the length of the air outlet 313 , so that the airflow output from the air outlet 313 is completely divided into two parts by the partition 21 .

[0101] Specifically, by arranging the fan assembly 3 above the evaporator 2, when the fan assembly 3 blows air toward the evaporator 2, the cold air flow formed is from top to bottom. Since the density of the cold air flow is large, the air in the refrigeration compartment 11 can be quickly dispersed, achieving a rapid cooling effect.

[0102] In some embodiments of the present application, the partition 21 of the evaporator 2 is embedded in the air outlet 313 of the fan assembly 3, so that the air flow can be blown directly to the evaporator 2 from the guide channel 3131; there is a gap between the plane where the evaporator 2 is located and the two side walls of the air outlet 313, that is, there is a distance between the evaporator 2 and the two side walls of the air outlet 313, and the evaporator 2 is not attached to the side walls of the air outlet 313. After passing through the guide channel 3131, the air flow is blown to both sides of the evaporator 2, and part of the air flow is blown to the inner air supply channel 4. The conveying space of the inner air supply channel 4 is relatively small, so the heat exchange efficiency of the air flow inside the evaporator 2 is higher.

[0103] Another part of the air flow is blown toward the side of the evaporator 2 away from the inner air supply channel 4, so that both sides of the evaporator 2 can exchange heat with the air flow, which is beneficial to improving the heat exchange efficiency.

[0104] When it is hot, the airflow outside the evaporator 2 is directly connected to the refrigeration compartment, so it is inevitable that the airflow will disperse into the refrigeration compartment 11, and the heat exchange efficiency of this part of the airflow is lower.

[0105] Taking the direction toward the door as the front, in order to balance the heat exchange efficiency between the inside and outside of the evaporator 2 , the distance between the evaporator 2 and the front wall of the air outlet 313 is greater than the distance between the evaporator 2 and the rear wall of the air outlet 313 .

[0106] For example, the distance between the partition 21 of the evaporator 2 and the front wall of the air outlet 313 is L1; the distance between the partition 21 of the evaporator 2 and the rear wall of the air outlet 313 is L2. When L1:L2 is 2:1, the heat exchange efficiency on both sides of the evaporator 2 can be roughly the same.

[0107] Of course, the ratio of the distance L1 between the partition 21 and the front wall of the air outlet 313 to the distance L2 between the partition 21 and the rear wall of the air outlet 313 can also be designed to other ratios according to actual conditions.

[0108] In other embodiments, a limiting groove 3321 is further provided on the side of the first guide section 331 or the second guide section 332 close to the air outlet 313. In the installed state, the partition 21 above the evaporator 2 abuts against the limiting groove 3321, and the airflow on both sides of the partition 21 can be respectively transported to the inside and outside of the evaporator 2, thereby increasing the heat exchange area.

[0109] In the present application, air is directly sucked from the refrigeration compartment 11 through the air inlet 311 , driven by the centrifugal fan 32 , blown out of the air outlet 313 through the guide channel 3131 , and directly blown downwards toward the evaporator 2 from the air outlet 313 .

[0110] The working process of the fan assembly 3 is as follows: Figure 1 and Figure 13As shown, the direction of the arrow in the figure indicates the flow direction of the airflow. When the centrifugal fan 32 is started, under the action of the centrifugal fan 32, the airflow enters the centrifugal fan 32 from the air inlet 311 on the front cover 314, and is thrown into the guide channel 3131. The airflow is evenly sent to the air outlet 313 along each parallel guide channel 3131. After the airflow exits the air outlet 313, part of the airflow is blown into the internal air supply channel 4 formed by the evaporator 2 and the inner tank 13, and the other part is blown toward the side of the evaporator 2 facing the storage items, thereby exchanging heat with the evaporator 2, taking away the cold energy on the surface of the evaporator 2, and cooling the refrigeration compartment 11.

[0111] In a second aspect, the present application provides a refrigeration device, which includes a box body 1, an evaporator 2 and a fan assembly 3.

[0112] The box body 1 comprises an outer shell and an inner liner, wherein a refrigeration chamber 11 is formed in the inner liner; The evaporator 2 is arranged in the refrigeration compartment 11; The fan assembly 3 is arranged in the refrigeration compartment 11 and is located above the evaporator 2; The fan assembly 3 includes a casing 31 , a centrifugal fan 32 and a flow guide structure.

[0113] An air inlet 311 and an air outlet 313 are formed on the housing 31, and an air cavity 312 is formed therein. The air inlet 311, the air cavity 312 and the air outlet 313 are sequentially connected, and the air outlet 313 faces the evaporator 2; The centrifugal fan 32 is rotatably disposed in the housing 31 and is located in the air cavity 312 .

[0114] The guide structure is arranged in the air cavity 312, and the guide structure is divided into multiple parallel guide channels through the air cavity 312. The guide structure is configured to blow the air flow formed by the centrifugal fan 32 to the air outlet 313 through multiple parallel guide channels to improve the uniformity of the air outlet 313.

[0115] The guide structure is arc-shaped and bends away from the centrifugal fan 32. The guide channel 3131 separated by the guide structure is also arc-shaped. The inlet of the guide channel 3131 faces the edge of the centrifugal fan 32, and the outlet of the guide channel 3131 faces the air outlet 313. The guide structures on both sides of the centrifugal fan are arranged symmetrically.

[0116] When the centrifugal fan is turned on, the airflow formed by the centrifugal fan 32 enters from the entrance of the guide channel 3131, blows toward the air outlet along the curved guide channel 3131, and the airflow formed by the centrifugal fan 32 is diverted and guided from each guide channel 3131 to the air outlet 313, so that the air outlet 313 has more uniform air distribution.

[0117] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0118] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A refrigeration device, characterized in that: include: a box body, in which a refrigeration compartment is formed; an evaporator disposed in the refrigeration compartment; and, a fan assembly, which is arranged in the refrigeration compartment and located on one side of the evaporator; Wherein, the fan assembly includes: a housing having an air inlet and an air outlet formed thereon, and an air cavity formed therein, wherein the air inlet, the air cavity and the air outlet are sequentially connected, and the air outlet faces the evaporator; a centrifugal fan rotatably disposed within the housing and located in the air cavity; and A plurality of guide plates are arranged in the casing and located in the air cavity. The plurality of guide plates are arranged at intervals along the width direction of the casing and divide the air cavity into a plurality of parallel guide channels. The inlet of the guide channel faces the edge of the centrifugal fan, and the outlet of the guide channel extends to the air outlet.

2. The refrigeration equipment according to claim 1, characterized in that At least part of the guide plates are in an arc-shaped structure, and the guide plates located on both sides of the centrifugal fan are symmetrically arranged.

3. The refrigeration equipment according to claim 2, characterized in that The guide plate comprises: a first guide section, the first guide section being close to an edge of the centrifugal fan, the first guide section being in an arc-shaped structure and curving in a direction away from the centrifugal fan; and The second guide section extends to the air outlet, has a plate-shaped structure, and is connected to the first guide section.

4. The refrigeration equipment according to claim 1, characterized in that The guide plates are arranged at equal intervals along the width direction of the housing, and the guide plates are perpendicular to the rear wall surface of the housing.

5. The refrigeration equipment according to claim 1, characterized in that The fan assembly further comprises: An intermediate baffle is arranged in the air cavity and is located on the side of the centrifugal fan away from the air outlet. The intermediate baffle is fixedly connected to the casing and extends to the edge of the centrifugal fan; the intermediate baffle is configured to disconnect the guide channel between the centrifugal fan and the inner wall of the air cavity, so that the airflow formed by the centrifugal fan is blown toward the air outlet on both sides of the intermediate baffle.

6. The refrigeration equipment according to claim 1, characterized in that The housing comprises: A front cover, wherein the air inlet is formed on the front cover, and the position of the air inlet corresponds to the position of the centrifugal fan, and the air inlet is provided with an air inlet grille; The rear shell is detachably connected to the front cover, and the front cover and the rear shell together enclose the air cavity and the air outlet. The air outlet is located at the bottom of the air cavity, and the air cavity is arched.

7. The refrigeration equipment according to claim 6, characterized in that A wiring hole is formed on the rear shell at a position corresponding to the centrifugal fan, and the wiring hole is configured for connecting the centrifugal fan to a circuit.

8. The refrigeration equipment according to claim 6, characterized in that The rear shell is independently provided and fixed to the inner wall surface of the box body, or the rear shell and the box body are formed as one piece; and the guide plate is formed on the front cover and / or the rear shell.

9. The refrigeration equipment according to claim 1, characterized in that The fan assembly is located above the evaporator. Along the thickness direction of the casing, there are gaps between the evaporator and the front and rear side walls of the air outlet, so that the air flow from the centrifugal fan passes through the guide channel and blows to both sides of the evaporator.

10. A refrigeration device, characterized in that: include: The box body comprises an outer shell and an inner liner, wherein a refrigeration chamber is formed in the inner liner; an evaporator disposed in the refrigeration compartment; and, a fan assembly, which is disposed in the refrigeration compartment and located above the evaporator; Wherein, the fan assembly includes: a housing having an air inlet and an air outlet formed thereon, and an air cavity formed therein, wherein the air inlet, the air cavity and the air outlet are sequentially connected, and the air outlet faces the evaporator; a centrifugal fan rotatably disposed within the housing and located in the air cavity; and A guide structure is arranged in the wind cavity and divides the wind cavity into multiple parallel guide channels. The guide structure is configured to blow the airflow formed by the centrifugal fan to the air outlet through multiple parallel guide channels to improve the uniformity of the air outlet.

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