Refrigeration equipment

Abstract

The utility model relates to the field of electrical equipment, in particular to refrigeration equipment which comprises a box body, a fan assembly and an evaporator, the fan assembly is installed in the box body and comprises a fan shell and a centrifugal fan, an air inlet is formed in the front side of the fan shell, and an air outlet is formed in the lower side of the fan shell; the evaporator is located under the air outlet, a separation part is formed above the evaporator, and at least part of the separation part extends into the air outlet and is used for separating the air outlet into a front part and a rear part so that airflow output from the air outlet can be conveyed downwards in parallel along the two sides of the evaporator; after the centrifugal fan is started, airflow is output from the air outlet and conveyed along the surface of the evaporator from the front side and the rear side of the evaporator according to the target proportion; the heat exchange efficiency of the evaporator is improved, and the air volume ratio of the two sides of the evaporator is stable and uniform.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical equipment, and in particular relates to a refrigeration device. Background Art

[0002] The refrigeration equipment is mainly refrigerated display cabinets, which are mainly used in supermarkets, stores and other places to refrigerate and display bottled beverages and mineral water for sale. Usually, refrigerated display cabinets use forced air cooling refrigeration systems, which increase the speed of the fan to increase the air volume or increase the heat exchange area of ​​the heat exchanger to increase the refrigeration speed. However, increasing the speed causes increased noise, and increasing the heat exchanger area leads to increased volume and cost.

[0003] Blowing evaporators are widely used in commercial refrigeration display cabinets due to their high evaporation efficiency, long service life, small size and light weight. However, when traditional fan components are combined with evaporators, there is an angle between the blowing direction of the fan and the plane of the blowing evaporator, which leads to unstable and uneven air volume on both sides of the blowing evaporator, and poor performance consistency on both sides of the heat exchanger, resulting in poor consistency in the cooling effect and performance of the evaporator. In addition, the fan assembly occupies a large space and generates a lot of noise during the airflow transmission process, which will also cause problems such as poor user experience. Utility Model Content

[0004] The purpose of the utility model is to provide a refrigeration device to solve the problems existing in the prior art that the air flow delivery direction of the fan component in the existing refrigeration display cabinet and other refrigeration equipment is at an angle with the evaporator surface, resulting in uneven air volume delivery on both sides of the evaporator, resulting in low heat exchange efficiency of the evaporator, poor performance consistency on both sides of the heat exchanger, and high noise.

[0005] In order to achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions:

[0006] In one aspect, the present application provides a refrigeration device, comprising:

[0007] A box body, comprising an outer shell and an inner liner arranged in the outer shell, wherein a refrigeration chamber is formed in the inner liner;

[0008] A fan assembly is installed in the box, comprising a fan housing and a centrifugal fan, wherein an air inlet is formed on the front side of the fan housing, and an air outlet is formed on the lower side of the fan housing;

[0009] The evaporator is arranged on the inner tank and is located directly below the air outlet. A partition is formed above the evaporator, and the partition at least partially extends into the air outlet, which is used to divide the air outlet into two parts, front and rear, so that the airflow output from the air outlet can be transported downward in parallel along both sides of the evaporator.

[0010] In some embodiments of the present application, the fan housing includes a front cover and a rear shell, the air inlet is formed on the front cover, and an air inlet grille is formed on the air inlet.

[0011] In some embodiments of the present application, a support portion extending into the refrigeration compartment is formed on the inner tank, and the evaporator is connected to the support portion.

[0012] In some embodiments of the present application, a length L1 of the partition from the front cover and a length L2 of the partition from the rear shell satisfy: L1:L2=2:1.

[0013] In some embodiments of the present application, an air flow cavity is formed between the front cover and the rear shell, the centrifugal fan is installed in the air flow cavity, and the air outlet is formed at the bottom of the air flow cavity.

[0014] In some embodiments of the present application, a plurality of guide portions are formed in the airflow cavity, and the guide portions divide the airflow cavity into a plurality of guide channels, and the guide channels guide the airflow output from the centrifugal fan to the corresponding position of the air outlet.

[0015] In some embodiments of the present application, the evaporator is an inflation evaporator.

[0016] In some embodiments of the present application, a connecting outer edge is formed on the rear shell, and a connecting portion adapted to the shape of the connecting outer edge is formed on a side of the front cover close to the rear shell, and the connecting outer edge is detachably connected to the connecting portion.

[0017] In some embodiments of the present application, a plurality of snap-fit ​​parts are dispersedly formed on the connecting part or the connecting outer edge, and a snap-fit ​​part matching the shape of each snap-fit ​​part is formed on the connecting outer edge or the connecting part.

[0018] In some embodiments of the present application, a connecting recess extending inward is formed on the connecting portion, and the connecting outer edge portion is inserted into the connecting recess.

[0019] In some embodiments of the present application, a mounting portion is formed on the peripheral side of the mounting base of the centrifugal fan, a mounting hole is formed on the mounting portion, a fixing portion is formed on the front cover and / or the rear shell, and the mounting portion is detachably connected to the fixing portion via fasteners.

[0020] On the other hand, the present application also proposes a refrigeration device, which comprises:

[0021] A box body, comprising an outer shell and an inner liner, wherein the inner liner is installed in the outer shell and a refrigeration chamber is formed in the inner liner;

[0022] An evaporator, which is arranged on the inner tank and forms a heat exchange channel with the inner tank;

[0023] A fan assembly includes a fan housing and a centrifugal fan, wherein an air inlet is formed on the front side of the fan housing, and an air outlet is formed on the lower side of the fan housing; the position of the air outlet is configured so that the airflow output from the air outlet is transported downward along both sides of the evaporator to improve the heat exchange rate of the evaporator.

[0024] Compared with the prior art, the advantages and positive effects of the utility model are:

[0025] The refrigeration device involved in the present application has an evaporator arranged directly below the air outlet, and a partition is formed above the evaporator. The partition may be a part of the evaporator or a separately designed structure installed above the evaporator. The partition at least partially extends into the air outlet to divide the air outlet into two parts, front and rear. After the centrifugal fan is turned on, the airflow is output from the air outlet and transported downward from the front and rear sides of the evaporator along the surface of the evaporator according to the target ratio.

[0026] The conveying direction of the airflow is parallel to the surface of the evaporator, which is beneficial to increase the contact area between the airflow and the evaporator surface, improve the heat exchange efficiency of the evaporator and the cooling speed, and reduce energy consumption;

[0027] In addition, the distribution ratio of airflow on both sides of the evaporator can be controlled, so that the air volume ratio on both sides of the evaporator is stable and uniform;

[0028] The fan assembly occupies a small space, increases the effective volume of the display cabinet, and reduces product operation noise.

[0029] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0031] Figure 1 is a partial structural schematic diagram of a refrigeration device according to an embodiment;

[0032] Figure 2 A schematic diagram of the disassembly of a fan assembly and a box body according to an embodiment;

[0033] Figure 3 is a schematic diagram of a box structure according to an embodiment;

[0034] Figure 4 Based on Figure 1 A schematic cross-sectional view of the refrigeration equipment of an embodiment;

[0035] Figure 5 is a schematic structural diagram of a fan assembly according to an embodiment;

[0036] Figure 6 This is one of the schematic diagrams of the disassembled structure of the fan assembly according to the embodiment;

[0037] Figure 7 This is a second schematic diagram of the disassembled structure of a fan assembly according to an embodiment;

[0038] Figure 8 is a schematic diagram of the connection between the front cover and the rear shell according to an embodiment;

[0039] Fig. 9 It is one of the schematic diagrams of the front cover structure;

[0040] Fig.10 It is a schematic diagram of the rear shell structure;

[0041] Fig.11 This is a third schematic diagram of the disassembled structure of a fan assembly according to an embodiment;

[0042] Fig.12 This is the second schematic diagram of the front cover structure;

[0043] Reference numerals:

[0044] 100, box body; 110, outer shell; 120, liner; 121, support part;

[0045] 200, evaporator; 210, partition;

[0046] 300, fan assembly; 301, air inlet; 302, air outlet;

[0047] 31, housing; 310, front cover; 311, air inlet grille; 312, connection hole; 313, connection part; 3131, first connection part; 3132, second connection part; 314, buckle part; 315, fixing part; 316, air guide part; 317, limiting groove; 318, middle baffle;

[0048] 320. centrifugal fan; 321. installation part;

[0049] 330, rear shell; 331, connecting outer edge; 332, clamping part; 333, fixing hole; 334, avoidance recess; 3341, wiring hole;

[0050] 340. Thermostat. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0052] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present 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 should not be understood as a limitation on the present application.

[0053] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0054] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0055] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0056] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0057] The refrigeration device in the present application generally comprises a box body, a door body and a refrigeration system, wherein at least a 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 articles.

[0058] The refrigeration system uses a compressor, condenser, expansion valve and evaporator to perform the refrigeration cycle of the refrigeration equipment. The refrigeration cycle includes a series of processes involving compression, condensation, expansion and evaporation to achieve cooling of the items in the box.

[0059] The low-temperature and low-pressure refrigerant enters the compressor, which compresses it into high-temperature and high-pressure refrigerant gas and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0060] The expansion valve expands the high-temperature and high-pressure liquid refrigerant condensed in the condenser into a low-pressure liquid refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the low-temperature and low-pressure refrigerant gas to the compressor. The evaporator can cool the items in the box by utilizing the latent heat of evaporation of the refrigerant.

[0061] Refrigeration equipment such as household refrigerators include a box body, and the refrigeration compartments in the box body include a refrigerator and a freezer. The front ends of the refrigerator and the freezer are respectively provided with ports for introducing food. The refrigerator is used to insure food, and the freezer is used to freeze food.

[0062] An ice-making device is arranged in the box body for making ice cubes needed in daily life.

[0063] The ice-making device comprises a water supply component and an ice-making component. The water supply component is installed in the box body and comprises a water storage tank and a water supply pipe group connected with the water storage tank.

[0064] The water storage tank is specifically installed in the cold storage room, in an environment where the temperature range inside the box is above 0 degrees to avoid freezing.

[0065] The ice-making assembly is installed in the freezing chamber and connected to the water supply pipe assembly to make ice cubes from the fluid transported from the water supply pipe assembly.

[0066] The present application is different from a household refrigerator, and mainly relates to a refrigerated display cabinet used in supermarkets, shops, etc. for refrigerating and selling bottled beverages, mineral water, etc.

[0067] The evaporator of the refrigeration display cabinet is an inflation evaporator. The low-temperature refrigerant passes through the evaporator to exchange heat with the outside air, "gasifying" and absorbing heat to achieve a refrigeration effect.

[0068] refer to Figure 1-Figure 3 A refrigeration device includes a box body 100, a fan assembly 300 and an evaporator 200. The box body 100 includes an outer shell 110 and an inner shell 120 arranged from the outside to the inside. A refrigeration chamber is formed in the inner shell 120 for storing items that need to be refrigerated.

[0069] refer to Figure 4-Figure 6 The inner liner 120 is located in the outer shell 110, and a fan assembly 300 is arranged above the inner liner 120. The fan assembly 300 includes a fan housing and a centrifugal fan 320. The centrifugal fan 320 is arranged in the fan housing. An air inlet 301 is formed on the front side of the fan housing, and an air outlet 302 is formed on the lower side of the fan housing.

[0070] An air inlet grille 311 is formed on the air inlet 301 to prevent foreign matter from entering the fan housing.

[0071] The front cover 310 is also provided with a profiling extending toward the rear shell 330 , and a connecting hole 312 is opened on the profiling. A fastener passes through the connecting hole 312 to fix the entire fan assembly 300 on the inner tank 120 .

[0072] The evaporator 200 is a plate-shaped structure as a whole, which is fixed on the rear wall of the inner tank 120 and is located directly below the fan assembly 300 .

[0073] The air outlet 302 on the fan assembly 300 is an opening structure extending along the width direction of the inner tank 120 , and the width dimension of the evaporator 200 is adapted to the length dimension of the air outlet 302 .

[0074] refer to Figure 4 In order to solve the problem that the traditional air flow channel forms a corner, resulting in unstable air volume on both sides of the evaporator 200 and high noise during air flow transportation, the evaporator 200 is arranged directly below the air outlet 302, and the air flow output from the air outlet 302 is transported downward in a straight line to the surface of the evaporator 200.

[0075] After the centrifugal fan 320 is turned on, the airflow in the refrigeration compartment is input into the fan housing from the air inlet 301, and then output to the lower side of the refrigeration compartment through the air outlet 302 below the fan housing.

[0076] In order to improve the utilization rate of the evaporator 200, a heat exchange channel is formed between the evaporator 200 and the inner tank 120, that is, the evaporator 200 is not in direct contact with the rear wall of the inner tank 120, so that part of the airflow output by the air outlet 302 passes through the heat exchange channel.

[0077] The evaporator 200 is specifically an inflation evaporation plate. A partition 210 is formed above the evaporator 200 for dividing the airflow output from the air outlet 302 into two parts, which are respectively transported downward from the front and rear sides of the evaporator 200 .

[0078] The partition 210 at least partially extends into the air outlet 302 , and the airflow output from the air outlet 302 is transported downward in parallel along both sides of the evaporator 200 .

[0079] The partition 210 may be integrally formed above the evaporator 200 , or may be pre-fixed on the evaporator 200 by mechanical connection and connected together with the evaporator 200 in the inner tank 120 .

[0080] The length of the partition 210 matches the length of the air outlet 302 , so that the airflow output from the air outlet 302 is completely divided into two parts by the partition 210 .

[0081] refer to Figure 3 Specifically, a support portion 121 extending into the refrigeration compartment is formed on the rear wall of the inner tank 120 , and the evaporator 200 is connected to the support portion 121 .

[0082] In order to improve the stability of the connection of the evaporator 200, a support part 121 is respectively provided on the rear wall of the inner tank 120 corresponding to the four corners of the evaporator 200, and the four corners of the evaporator 200 are respectively fixed on the support part 121 to realize the connection and fixation of the evaporator 200.

[0083] The height of the support portion 121 determines the distance between the evaporator 200 and the rear wall of the inner container 120 , and the evaporator 200 and the support portion 121 are detachably connected via fasteners.

[0084] refer to Figure 6 The fan housing includes a front cover 310 and a rear shell 330, and the front cover 310 and the rear shell 330 are detachably connected.

[0085] An air flow cavity is formed between the front cover 310 and the rear shell 330 , and the centrifugal fan 320 is installed in the air flow cavity.

[0086] The air outlet 302 is formed at the bottom of the air flow cavity.

[0087] The air inlet 301 may be formed separately on the front cover 310 or the rear shell 330 , and of course, may also be formed by the front cover 310 and the rear shell 330 together.

[0088] Taking the air inlet 301 formed on the front cover 310 as an example, an extension portion extending toward the two sides of the inner liner 120 is formed at the bottom of the front cover 310. The extension portion forms a trumpet-shaped air outlet 302 at the bottom of the air flow cavity to increase the air outlet range and thereby increase the contact range with the evaporator 200.

[0089] Since a heat exchange channel is formed between the inner side of the evaporator 200 and the inner tank 120, the airflow output from the air outlet 302 to the heat exchange channel can only be transported downward along the inner surface of the evaporator 200, and the transport space is small. Therefore, the heat exchange efficiency of the airflow inside the evaporator 200 is higher.

[0090] Since the airflow outside the evaporator 200 is directly connected to the refrigeration compartment, there is a tendency for the airflow to diverge toward the refrigeration compartment, and the heat exchange efficiency of the airflow is lower.

[0091] In order to balance the heat exchange efficiency inside and outside the evaporator 200, the partition 210 is arranged at the position of the air outlet 302 to meet the following conditions: the first airflow outputted from the air outlet 302 to the inside of the evaporator 200 and the second airflow outputted to the outside of the evaporator 200 are in a certain ratio.

[0092] For example, the length L1 of the partition 210 from the front cover 310 and the length L2 of the partition 210 from the rear shell 330 are designed to satisfy: L1:L2=2:1, so as to achieve substantially the same heat exchange efficiency on both sides of the evaporator 200.

[0093] Of course, the ratio of the length L1 of the partition 210 from the front cover 310 to the length L2 of the partition 210 from the rear shell 330 can also be designed to other ratios according to actual conditions.

[0094] In order to improve the assembly efficiency of the fan housing, the front cover 310 and the rear housing 330 are connected by snap-fit ​​connection.

[0095] The front shell is a flat plate structure as a whole, and the rear shell 330 is a shell structure larger than the centrifugal fan 320. The rear shell 330 is detachably connected to the front cover 310 by means of a snap connection.

[0096] Specifically, refer to Figure 7-10 A connecting outer edge 331 is formed on the rear shell 330 , and a connecting portion 313 matching the shape of the connecting outer edge 331 is formed on one side of the front cover 310 close to the rear shell 330 , and the connecting outer edge 331 is detachably connected to the connecting portion 313 .

[0097] In some embodiments of the present application, a plurality of snap-fit ​​portions 314 are arranged at intervals on the connecting portion 313, and a snap-fit ​​portion 332 is arranged at a corresponding position of the connecting outer edge 331. The snap-fit ​​portion 332 is a snap-fit ​​protrusion formed on the outer side of the connecting outer edge 331. In the connected state, the snap-fit ​​portion 332 is connected to the corresponding snap-fit ​​portion 314.

[0098] In order to improve the positioning accuracy, the connecting part 313 includes a first connecting part 3131 and a second connecting part 3132. A connecting recess is formed between the first connecting part 3131 and the second connecting part 3132. The connecting outer edge 331 is adapted to the connecting recess. In the installed state, the connecting outer edge 331 is partially inserted into the connecting recess.

[0099] In other embodiments, a plurality of snap-fitting portions 332 are spaced apart on the connecting portion 313, and a snap-fitting portion 314 is provided at a corresponding position of the connecting outer edge 331. The snap-fitting portion 332 is a snap-fitting protrusion formed on the outer side of the connecting portion 313. In the connected state, the snap-fitting portion 332 is connected to the corresponding snap-fitting portion 314.

[0100] A plurality of buckle portions 314 are dispersedly formed on the connecting portion 313 or the connecting outer edge 331 , and a clamping portion 332 matching the shape of each buckle portion 314 is formed on the connecting outer edge 331 or the connecting portion 313 .

[0101] The front cover 310 and the rear shell 330 are plastic structures, the connecting portion 313 is integrally formed with the front cover 310 , and the connecting outer edge 331 is integrally formed with the rear shell 330 to reduce processing costs.

[0102] Specific reference Fig.10 A relief recess 334 extending away from the centrifugal fan 320 is formed on the rear shell 330, and the shape of the relief recess 334 is adapted to the shape of the centrifugal fan 320. The centrifugal fan 320 is detachably connected between the front cover 310 and the rear shell 330 by fasteners such as fastening screws.

[0103] Specific reference Figure 7 , Fig. 9 A plurality of mounting portions 321 are formed on the peripheral side of the mounting base of the centrifugal fan, mounting holes are formed on the mounting portions 321, and a fixing portion 315 is formed on the front cover 310 and / or the rear shell 330, and the mounting portion 321 is detachably connected to the fixing portion 315 by fasteners.

[0104] Adjacent mounting portions 321 are arranged at equal angles to ensure the stability of the installation, so as to provide stable support for the centrifugal fan 320 during operation.

[0105] In some embodiments of the present application, the fixing portion 315 is a connecting protrusion formed on a side of the front cover 310 close to the rear shell 330 and extending outward, a hole is formed on the connecting protrusion, and a fixing hole 333 is formed at a corresponding position of the rear shell 330.

[0106] During installation, first align each mounting portion 321 on the centrifugal fan with the corresponding fixing portion 315, and then pass the fastening screws from the outside of the rear shell 330 through the fixing holes 333 and the mounting holes to connect to the corresponding fixing portions 315 to achieve the connection and fixation of the centrifugal fan.

[0107] In other embodiments of the present application, the fixing portion 315 is formed on one side of the rear shell 330 close to the centrifugal fan 320, and a fixing hole 333 is formed on the fixing portion 315. During installation, the centrifugal fan is first fixed to the rear shell 330 by fastening screws, and then the front cover 310 and the rear shell 330 are installed.

[0108] refer to Fig.11 , Fig.12 In some other embodiments of the present application, in order to ensure that the airflow output at each position of the air outlet 302 of the fan housing is relatively uniform, a plurality of guide portions 316 are further provided in the airflow cavity. The guide portions 316 divide the airflow cavity into a plurality of guide channels, and the guide channels guide the airflow output from the centrifugal fan 320 to the corresponding positions of the air outlet 302.

[0109] The specific structure of the guide portion 316 will be described in detail below:

[0110] Each air guide portion 316 is a partition structure disposed on the inner side of the front cover 310 , and each air guide portion 316 extends perpendicularly to the inner surface of the front cover 310 toward the rear shell 330 .

[0111] A flow guiding channel is formed between adjacent flow guiding portions 316 . In the installed state, the flow guiding portion 316 is in contact with and connected to the rear shell 330 , thereby reducing the mutual flow of air between the flow guiding channels.

[0112] One end of each air guide portion 316 extends to the output end of the centrifugal fan 320 , and the other end extends to the air outlet 302 .

[0113] The extension paths of the guide portions 316 at different positions are different. For example, the guide portion 316 directly below the centrifugal fan 320 is a straight line, and the guide portion 316 on the side of the centrifugal fan 320 includes a straight line segment and an arc segment. That is, the guide portion 316 extends along the lower side of the centrifugal fan 320 so that the airflow output from different positions of the centrifugal fan 320 is output through the corresponding guide channel.

[0114] The straight segments of each guide portion 316 are arranged along the length direction of the air outlet 302, and the widths of the guide channels between adjacent straight segments are equal. Alternatively, the airflow output by the centrifugal fan 320 may be set to different strengths based on test results.

[0115] This is to ensure that the air flow at each position of the air outlet 302 is consistent as much as possible, thereby improving the consistency of heat exchange efficiency at different positions of the heat exchanger.

[0116] At the same time, the air outlet 302 on the casing 31 has a large span, and the guide channels on both sides of the centrifugal fan 320 are symmetrically arranged, so the wind pressure is relatively balanced, avoiding the centrifugal fan 320 from using a volute pressurization method, reducing the air volume loss of the centrifugal fan 320, which is beneficial to ensuring the working efficiency of the centrifugal fan 320.

[0117] By providing the guide portion 316 , the wind blown out from all directions by the centrifugal fan 320 is evenly delivered to the air outlet 302 through the guide channel, so that the air volume of the air outlet 302 is more uniform, thereby more fully exchanging heat with the evaporator 200 .

[0118] In other embodiments of the present application, an intermediate baffle 318 is further provided between the top of the air inlet 301 and the connecting portion 313. The intermediate baffle 318 is used to block the airflow output from the top of the centrifugal fan 320 to prevent the output airflow from being concentrated on one side as the centrifugal fan 320 rotates, thereby avoiding problems such as uneven airflow output from the air outlet 302.

[0119] In addition, a limiting groove 317 is provided on one side of each guide portion 316 close to the air outlet 302. When installed, the partition portion 210 above the evaporator 200 abuts against the limiting groove 317, so that the airflow on both sides of the partition portion 210 can be respectively transported to the inside and outside of the evaporator 200 to reduce airflow mixing.

[0120] In some other embodiments of the present application, a through wiring hole 3341 is provided on the rear shell 330 , and an external wiring harness of the centrifugal fan 320 is output from the wiring hole 3341 to connect to a power supply device.

[0121] In addition, the refrigeration device also includes a thermostat 340, 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 refrigerator is maintained within a given value range.

[0122] The present application also proposes a refrigeration device, which includes a box body 100, an evaporator 200 and a fan assembly 300. The box body 100 includes an outer shell 110 and an inner liner 120. The inner liner 120 is arranged in the outer shell 110, and a refrigeration chamber is formed in the inner liner 120.

[0123] The evaporator 200 is disposed on the inner liner 120 , and a heat exchange channel is formed between the evaporator 200 and the inner liner 120 .

[0124] The fan assembly 300 includes a fan housing and a centrifugal fan 320, an air inlet 301 is formed on the front side of the fan housing, and an air outlet 302 is formed on the lower side of the fan housing; the position of the air outlet 302 is configured as follows: the airflow output from the air outlet 302 is transported downward in parallel along both sides of the evaporator 200 to improve the heat exchange rate of the evaporator 200.

[0125] The above functions of the air outlet 302 can be realized in the following ways:

[0126] Method 1:

[0127] A partition 210 is disposed in the air outlet 302 . The partition 210 is a partition structure formed inside the air outlet 302 and extending along the length direction of the air outlet 302 . Two ends of the partition 210 are detachably connected to the two ends of the air outlet 302 .

[0128] The length of the air outlet 302 is matched with the width of the evaporator 200 . In the installed state, the partition 210 is located directly above the evaporator 200 and is in contact with and connected to the top of the evaporator 200 .

[0129] The airflow output from the centrifugal fan 320 is divided into two parts by the partition 210 at the air outlet 302, one part is transported to the heat exchange channel at the rear side of the evaporator 200, and the other part of the airflow is transported to the front side of the evaporator 200.

[0130] Method 2:

[0131] The partition 210 is formed above the evaporator 200 . The partition 210 at least partially extends into the air outlet 302 . The airflow output from the air outlet 302 is transported downward in parallel along both sides of the evaporator 200 .

[0132] The partition 210 may be integrally formed above the evaporator 200 , or may be pre-fixed on the evaporator 200 by mechanical connection and connected together with the evaporator 200 in the inner tank 120 .

[0133] The length of the partition 210 matches the length of the air outlet 302 , so that the airflow output from the air outlet 302 is completely divided into two parts by the partition 210 .

[0134] Method 3:

[0135] In order to ensure that the airflow output at each position of the air outlet 302 of the fan housing is relatively uniform, a plurality of guide parts 316 are also provided in the fan housing. The guide parts 316 divide the airflow cavity into a plurality of guide channels, and the guide channels guide the airflow output from the centrifugal fan 320 to the corresponding position of the air outlet 302.

[0136] The specific structure of the guide portion 316 will be described in detail below:

[0137] The fan housing includes a front cover 310 and a rear housing 330 , and the front cover 310 and the rear housing 330 are detachably connected.

[0138] An air flow cavity is formed between the front cover 310 and the rear shell 330 , and the centrifugal fan 320 is installed in the air flow cavity.

[0139] Each air guide portion 316 is a partition structure disposed on the inner side of the front cover 310 , and each air guide portion 316 extends perpendicularly to the inner surface of the front cover 310 toward the rear shell 330 .

[0140] A flow guiding channel is formed between adjacent flow guiding portions 316 . In the installed state, the flow guiding portion 316 is in contact with and connected to the rear shell 330 , thereby reducing the mutual flow of air between the flow guiding channels.

[0141] One end of each air guide portion 316 extends to the output end of the centrifugal fan 320 , and the other end extends to the air outlet 302 .

[0142] The extension paths of the air guides 316 at different positions are different. For example, the air guide 316 directly below the centrifugal fan 320 is a straight line, and the air guide 316 on the side of the centrifugal fan 320 includes a straight line segment and an arc segment.

[0143] That is, the air guide portion 316 extends along the lower portion of the circumference of the centrifugal fan 320 so that the airflow output from different positions of the centrifugal fan 320 is output through the corresponding air guide channel.

[0144] The above three methods can be used in combination of method one and method three, or in combination of method two and method three.

[0145] The refrigeration device involved in the present application has an evaporator 200 disposed directly below the air outlet 302 , and a partition 210 is formed above the evaporator 200 to divide the air outlet 302 into two parts, a front part and a rear part.

[0146] After the centrifugal fan 320 is turned on, the air flow is output from the air outlet 302 and is transported along the surface of the evaporator 200 from the front and rear sides of the evaporator 200 according to the target ratio.

[0147] The conveying direction of the airflow is parallel to the surface of the evaporator 200, so the contact area between the airflow and the surface of the evaporator 200 can be increased, which is beneficial to improving the heat exchange efficiency and cooling speed of the evaporator 200 and reducing energy consumption.

[0148] In addition, by adjusting the distribution ratio of the airflow on both sides of the evaporator 200 as needed, the air volume ratio on both sides of the evaporator 200 can be made more stable and uniform.

[0149] The fan assembly 300 occupies a small space, increases the effective volume of the display cabinet, and reduces product operation noise.

[0150] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0151] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily thought of by technicians familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A refrigeration device, characterized in that: include: A box body, comprising an outer shell and an inner liner arranged in the outer shell, wherein a refrigeration chamber is formed in the inner liner; A fan assembly is installed in the box, comprising a fan housing and a centrifugal fan located in the fan housing, wherein an air inlet is formed on the front side of the fan housing, and an air outlet is formed on the lower side of the fan housing; The evaporator is arranged on the inner tank and is located directly below the air outlet. A partition is formed above the evaporator, and the partition at least partially extends into the air outlet, which is used to divide the air outlet into two parts, front and rear, so that the airflow output from the air outlet is transported downward in parallel along both sides of the evaporator.

2. The refrigeration equipment according to claim 1, characterized in that: The fan housing comprises a front cover and a rear shell. The air inlet is formed on the front cover, and an air inlet grille is formed on the air inlet.

3. The refrigeration equipment according to claim 2, characterized in that: The inner tank is formed with a support portion extending into the refrigeration room, and the evaporator is connected to the support portion; A length L1 of the partition from the front cover and a length L2 of the partition from the rear shell satisfy the following ratio: L1:L2=2:

1.

4. The refrigeration equipment according to claim 2, characterized in that: An air flow cavity is formed between the front cover and the rear shell, the centrifugal fan is installed in the air flow cavity, and the air outlet is formed at the bottom of the air flow cavity.

5. The refrigeration equipment according to claim 1, characterized in that: A plurality of guide parts are formed in the airflow inner cavity, and the guide parts divide the airflow inner cavity into a plurality of guide channels, and the guide channels guide the airflow output from the centrifugal fan to the corresponding position of the air outlet.

6. The refrigeration equipment according to claim 2, characterized in that: A connecting outer edge is formed on the rear shell, and a connecting portion matching the shape of the connecting outer edge is formed on a side of the front cover close to the rear shell, and the connecting outer edge is detachably connected to the connecting portion.

7. The refrigeration device according to claim 6, characterized in that: A plurality of buckle parts are dispersedly formed on the connecting part or the connecting outer edge, and a clamping part matching the shape of each buckle part is formed on the connecting outer edge or the connecting part.

8. The refrigeration device according to claim 7, characterized in that: The connecting portion is formed with a connecting recess extending inwardly, and the connecting outer edge portion is inserted into the connecting recess.

9. The refrigeration equipment according to claim 2, characterized in that: A mounting portion is formed on the peripheral side of the mounting base of the centrifugal fan, a mounting hole is formed on the mounting portion, a fixing portion is formed on the front cover and / or the rear shell, and the mounting portion is detachably connected to the fixing portion via a fastener.

10. A refrigeration device, characterized in that: include: A box body, comprising an outer shell and an inner liner, wherein the inner liner is installed in the outer shell and a refrigeration chamber is formed in the inner liner; An evaporator, which is arranged on the inner tank and forms a heat exchange channel with the inner tank; A fan assembly includes a fan housing and a centrifugal fan, wherein an air inlet is formed on the front side of the fan housing, and an air outlet is formed on the lower side of the fan housing; the position of the air outlet is configured so that the airflow output from the air outlet is transported downward in parallel along both sides of the evaporator to improve the heat exchange rate of the evaporator.

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