Air duct assembly and refrigeration equipment

Abstract

The utility model relates to the technical field of refrigeration equipment, in particular to an air duct assembly and refrigeration equipment. The air duct assembly is arranged on the inner top wall of a refrigeration cavity of the refrigeration equipment and comprises an air duct cover plate and a drainage assembly, the air duct cover plate and the inner top wall of the refrigeration equipment can form a top air duct, the top air duct can contain a draught fan and an evaporator in the refrigeration equipment, and the air duct cover plate is further provided with an air outlet. The air outlet can discharge air towards the opening end of a refrigeration cavity of the refrigeration equipment, the drainage assembly is arranged at the end, away from the air outlet, of the air duct cover plate, and a drainage opening is formed in the bottom of the drainage assembly. The air duct cover plate can achieve the effects of air guiding and flow guiding. The air outlet can discharge air towards the opening end of the refrigeration chamber, and articles close to the opening end of the refrigeration chamber can be refrigerated in time, so that the temperature uniformity in the refrigeration chamber is ensured.

Description

Technical Field

[0001] This application relates to the field of refrigeration equipment technology, specifically providing an air duct component and a refrigeration device. Background Technology

[0002] Existing refrigeration equipment on the market, taking refrigerated cabinets as an example, basically uses rear-exhaust cooling. The air outlet is located on the rear panel and blows air forward. The air travels a long distance, so the drinks at the back get cold first, and by the time the air reaches the front, the temperature has already risen. This results in uneven beverage temperatures and a large temperature difference between the front and back of the drinks. Summary of the Invention

[0003] This application aims to solve the aforementioned technical problem, namely, to solve the problem that the air outlet of the existing refrigerator can only blow air from the back to the front, resulting in a large temperature difference between the front and back of the refrigerator.

[0004] This application provides an air duct assembly disposed on the inner top wall of the refrigeration chamber of a refrigeration device. The air duct assembly includes: an air duct cover plate, which can form a top air duct with the inner top wall of the refrigeration device, the top air duct can accommodate the fan and evaporator inside the refrigeration device, the air duct cover plate is also provided with an air outlet, the air outlet can discharge air towards the opening end of the refrigeration chamber of the refrigeration device; and a drainage assembly disposed at the end of the air duct cover plate away from the air outlet, the bottom of the drainage assembly is provided with a drain outlet.

[0005] In the optional technical solution of the above-mentioned air duct assembly, the drainage assembly includes a baffle, the two ends of which are respectively connected to the two sides of the air duct cover plate, and a U-shaped drainage groove is formed in the middle of the baffle, and the drainage outlet is disposed at the bottom of the drainage groove.

[0006] In the optional technical solutions of the above-mentioned air duct assembly, the air duct cover plate includes a first side and a second side, and the U-shaped drainage groove is disposed near the second side.

[0007] In the optional technical solution of the above-mentioned air duct assembly, the air duct cover plate is further provided with a guide rib. The first end of the guide rib is inclined to the second end of the guide rib so that the guide rib can guide the water on the air duct cover plate to the U-shaped drainage groove. The first end of the guide rib is the end close to the first side, and the second end of the guide rib is the end close to the second side.

[0008] In the optional technical solution of the above-mentioned air duct assembly, the air duct cover includes a first base plate and a second base plate connected to each other, the air outlet is disposed on the first base plate, the drainage component is disposed on the second base plate, the second base plate is inclined from the end close to the first base plate to the end away from the first base plate, and the drainage component is disposed on the end of the second base plate away from the first base plate.

[0009] In the optional technical solutions of the above-mentioned air duct assembly, both sides of the second base plate are provided with guide side plates, and at least one of the two guide side plates moves towards the other at the end away from the first base plate; and / or, the first base plate is used to install the fan, the first base plate is provided with support ribs, the support ribs are provided at the edge of the air outlet, and the support ribs are used to support the fan; and / or, the evaporator in the refrigeration chamber can be provided above the second base plate, the connection position between the first base plate and the second base plate is provided with vertical ribs, the vertical ribs extend along the width direction of the first base plate, and the vertical ribs are provided with grooves extending from the first base plate to the second base plate.

[0010] In the optional technical solutions of the above-mentioned air duct assembly, the air outlet is provided with a grille, and the grille is arranged to protrude away from the air duct cover plate.

[0011] In the optional technical solution of the above-mentioned air duct assembly, the grille includes a baffle plate, which is perpendicular to the first base plate and extends downward along the air duct cover plate. The baffle plate is located on the side of the first base plate near the opening end of the cooling chamber.

[0012] This application also provides a refrigeration device, comprising: an air duct assembly as described in any of the above technical solutions; a housing, wherein a refrigeration chamber is provided inside the housing, the air duct assembly is disposed on the inner top wall of the refrigeration chamber and forms a top air duct with the inner top wall of the refrigeration chamber, and the air outlet can discharge air towards the opening end of the refrigeration chamber; a fan, disposed in the top air duct and close to the air outlet; and an evaporator, disposed in the top air duct, with the fan located between the air outlet and the evaporator.

[0013] In the optional technical solutions of the above-mentioned refrigeration equipment, the air outlet is located on the side of the duct cover plate near the opening end of the refrigeration chamber, and the air outlet is downward; and / or, the refrigeration equipment further includes a back plate, the back plate is located in the inner rear part of the refrigeration chamber, and forms a rear air duct with the inner rear part of the refrigeration chamber, the rear air duct is connected to the top air duct, and the rear air duct is provided with an air inlet extending along the width direction of the back plate.

[0014] With the above technical solution adopted, the air duct cover and the inner top wall of the refrigeration chamber form a top air duct, which can accommodate the fan and evaporator, and can also drain water dripping from the evaporator surface into the drain assembly through the drain assembly on the air duct cover, and then discharge it from the drain outlet. Therefore, the air duct assembly can achieve both air guiding and airflow guiding functions. In addition, since the air duct assembly is provided with an air outlet that can discharge air towards the opening end of the refrigeration chamber, when the refrigeration chamber door is frequently opened, the air outlet promptly delivers air to the opening end of the refrigeration chamber, and items near the opening end of the refrigeration chamber can also be cooled in a timely manner, thereby ensuring the temperature uniformity within the refrigeration chamber. Attached Figure Description

[0015] The preferred embodiments of this application are described below with reference to the accompanying drawings, in which:

[0016] Figure 1 This is a schematic diagram of the refrigeration equipment of this application;

[0017] Figure 2 yes Figure 1 A cross-sectional view of the refrigeration equipment.

[0018] Figure 3 This is a schematic diagram showing the positional relationship between the air duct assembly, the fan, and the evaporator in this application;

[0019] Figure 4 This is a top view of the air duct assembly of this application;

[0020] Figure 5 This is a side view of the air duct assembly of this application.

[0021] List of reference numerals in the attached diagram:

[0022] 1. Refrigeration equipment; 10. Housing; 11. Refrigeration chamber; 11a. Inner top wall of the refrigeration chamber; 11b. Opening end of the refrigeration chamber; 12. Top air duct; 120. Air duct assembly; 1201. Air duct cover; 121. Air outlet; 1211. Grille; 1212. Baffle plate; 122. Drainage assembly; 1221. Drain outlet; 1222. Baffle rib; 1223. U-shaped drainage channel; 1224. Guide rib; 1224a. First end of guide rib; 1224b. The second end of guide rib Two ends; 123, First side; 124, Second side; 125, First base plate; 1251, Support rib; 1252, Vertical rib; 1253, Groove; 126, Second base plate; 1261, Guide side plate; 1261a, The end of the guide side plate away from the first base plate; 13, Evaporator; 14, Fan; 15, Back plate; 150, Rear air duct; 151, Air inlet; h1, Height of the end of the second base plate near the first base plate; h2, Height of the end of the second base plate away from the first base plate. Detailed Implementation

[0023] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. In the following description relating to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The terms “first,” “second,” and similar terms used in this specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. “A plurality of” means two or more.

[0024] Unless otherwise stated, the orientation or positional relationship indicated by “length”, “width”, “upper”, “lower”, “front”, “rear”, “top”, “bottom”, “inner”, and “outer” is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0025] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. Furthermore, "connection" should be interpreted broadly; 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 an indirect connection through an intermediate medium; it can be a connection within two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0026] refer to Figure 1 and Figure 2 This application also provides a refrigeration device 1, including a housing 10 and an air duct assembly 120. A refrigeration chamber 11 is provided inside the housing 10. The air duct assembly 120 is disposed on the inner top wall 11a of the refrigeration chamber 11 and forms a top air duct 12 with the inner top wall 11a of the refrigeration chamber 11. The air duct assembly 120 is provided with an air outlet 121, which can discharge air towards the opening end 11b of the refrigeration chamber 11. The refrigeration device 1 also includes a fan 14 and an evaporator 13. The fan 14 and the evaporator 13 are disposed in the top air duct 12. The fan 14 is disposed close to the air outlet 121 and is located between the air outlet 121 and the evaporator 13.

[0027] By placing the fan 14 and evaporator 13 inside the top air duct 12 of the refrigeration chamber 11, the space for placing items in the refrigeration chamber 11 is not occupied. At the same time, placing the fan 14 and evaporator 13 on the inner top wall 11a of the refrigeration chamber 11, compared with placing them on the rear side of the refrigeration chamber 11, can avoid the fan 14 and evaporator 13 occupying more space in the depth direction of the refrigeration chamber 11, thereby ensuring that more items can be accommodated in the refrigeration chamber 11 without changing the volume of the housing 10.

[0028] Furthermore, since a door (not shown in the figure) is provided at the opening end 11b of the refrigeration chamber 11, frequent opening of the door will cause the temperature at the opening end 11b of the refrigeration chamber 11 to rise, resulting in uneven temperature distribution within the refrigeration chamber 11. Items near the opening end 11b of the refrigeration chamber 11 will be more difficult to cool, thus causing the temperature of items near the opening end 11b of the refrigeration chamber 11 to be higher than the temperature of items near the inner rear wall of the refrigeration chamber 11. However, by blowing air through the air outlet 121 of the top air duct assembly 120 to the opening end 11b of the refrigeration chamber 11, the cooling efficiency of items near the opening end 11b of the refrigeration chamber 11 can be improved, thereby improving the temperature uniformity within the refrigeration chamber 11.

[0029] At the same time, placing the fan 14 close to the air outlet 121 can prevent water on the surface of the evaporator 14 from entering the cooling chamber 11 from the air outlet 121, compared to placing the evaporator 14 close to the air outlet 121.

[0030] In one embodiment, reference continues... Figure 1 and Figure 2 The refrigeration device 1 also includes a back plate 15, which is disposed in the inner rear part of the refrigeration chamber 11 and forms a rear air duct 150 between the back plate 15 and the inner rear part of the refrigeration chamber 11. The rear air duct 150 is connected to the top air duct 12, and the rear air duct 150 is provided with an air inlet 16 extending along the width direction of the back plate 15. The air in the refrigeration chamber 11 enters the rear air duct 150 through the air inlet 16, then enters the top air duct 12 and is cooled by the evaporator 13, and then is sent back to the refrigeration chamber 11 through the air outlet 121, thereby forming a refrigeration cycle. Therefore, the rear air duct 150 is a return air duct. By setting the return air duct on the rear side of the refrigeration chamber 11, the air can be discharged from the air outlet 121 and completely exchange heat with the items in the refrigeration chamber 11 before flowing back into the rear air duct 150 from the rear air inlet 16. This further improves the heat exchange efficiency and prevents the air being refrigerated from flowing back into the rear air duct 150 before it has cooled the items.

[0031] To explain in detail the working principle of the air duct assembly 120 in the refrigeration chamber 11 and its function on the fan 14 and evaporator 13, the air duct assembly 120 will be described in detail below.

[0032] Combining 1 to Figure 4 This application provides an air duct assembly 120, which is disposed on the inner top wall 11a of the refrigeration chamber 11 of the refrigeration equipment 1. The air duct assembly 120 includes an air duct cover plate 1201 and a drainage assembly 122. The air duct cover plate 1201 can form a top air duct 12 with the inner top wall 11a of the refrigeration chamber 11. The top air duct 12 can accommodate the fan 14 and evaporator 13 in the refrigeration equipment 1. The air duct cover plate 1201 is also provided with an air outlet 121, which can discharge air towards the opening end 11b of the refrigeration chamber 11 of the refrigeration equipment 1. The drainage assembly 122 is disposed at the end of the air duct cover plate 1201 away from the air outlet 121, and a drain outlet 1221 is provided at the bottom of the drainage assembly 122.

[0033] The duct cover 1201 forms a top air duct 12 with the inner top wall 11a of the refrigeration chamber 11 to accommodate the fan 14 and evaporator 13. It also allows water dripping from the surface of the evaporator 13 to be drained through the drain assembly 122 and discharged from the drain outlet 1221. Therefore, the duct assembly 120 serves both to guide airflow and to direct airflow. Furthermore, since the duct assembly 120 is equipped with an air outlet 121 that directs airflow towards the opening end 11b of the refrigeration chamber 11, when the door of the refrigeration chamber 11 is frequently opened, the timely airflow from the air outlet 121 to the opening end 11b ensures that items near the opening end 11b are cooled promptly, thus maintaining temperature uniformity within the refrigeration chamber 11.

[0034] In one embodiment, reference is made to... Figure 1 and Figure 2 The air outlet 121 is located on the side of the air duct cover 1201 near the opening end 11b of the cooling chamber 11. In this configuration, the air outlet 121 prioritizes cooling items near the opening end 11b of the cooling chamber 11. Furthermore, since the air outlet 121 is positioned downwards, the air blown from it prioritizes cooling items below, further improving the cooling efficiency for items near the opening end 11b of the cooling chamber 11. Additionally, when the door of the cooling chamber 11 is opened, the air outlet 121 blows downwards, forming an air curtain, which further reduces the possibility of heat exchange between external hot air and the cold air inside the cooling chamber 11. Therefore, it reduces the heat dissipation rate of items near the opening end 11b of the cooling chamber 11, thus ensuring the cooling efficiency of these items and improving the temperature uniformity within the cooling chamber 11.

[0035] In one embodiment, reference is made to... Figure 4The drainage component 122 includes a baffle 1222, with both ends of the baffle 1222 connected to the two sides of the duct cover 1201, and a U-shaped drainage groove 1223 formed in the middle of the baffle 1222. A drain outlet 1221 is located at the bottom of the U-shaped drainage groove 1223. The connection between the baffle 1222 and the two sides of the duct cover 1201 ensures that the baffle 1222 blocks water on the duct cover 1201 and collects the water into the U-shaped drainage groove 1223, preventing water on the duct cover 1201 from flowing to other locations and affecting the operation of other components inside the refrigeration equipment 1.

[0036] In one embodiment, reference continues... Figure 4 The duct cover 1201 includes a first side 123 and a second side 124, with a U-shaped drain groove 1223 positioned close to the second side 124. Since the drain assembly 122 is located inside the top duct 12, when the fan 14 is started, the airflow inside the top duct 12 may act on the drain assembly 122, blowing the water in the drain assembly 122 into the refrigeration chamber 11. Positioning the U-shaped drain groove 1223 close to the second side 124 (i.e., against the side) reduces the possibility of water collected in the drain assembly being carried into the refrigeration chamber 11, and also reduces the possibility of water in the drain assembly 122 being carried back onto the evaporator 13, causing ice to form on the surface of the evaporator 13.

[0037] It should be noted that the U-shaped drainage channel 1223 is positioned close to the second side 124 in this application. Of course, it can also be positioned close to the first side 123. The above is not restrictive and can be configured according to the needs of those skilled in the art. All of the above are within the protection scope of this application.

[0038] In one embodiment, reference continues... Figure 4 The duct cover 1201 is also provided with a guide rib 1224. The first end 1224a of the guide rib 1224 is inclined to the second end 1224b of the guide rib 1224 so that the guide rib 1224 can guide the water on the duct cover 1201 to the U-shaped drainage channel 1223. The first end 1224a of the guide rib 1224 is the end closer to the first side 123, and the second end 1224b of the guide rib 1224 is the end closer to the second side 124. When the guide rib 1224 can guide the water on the duct cover 1201 towards the U-shaped drainage channel 1223, it can ensure that the water on the duct cover 1201 can be quickly guided to the U-shaped drainage channel 1223 and discharged from the drain outlet 1221.

[0039] In one embodiment, reference is made to... Figure 4 and Figure 5The duct cover 1201 includes a first base plate 125 and a second base plate 126 connected to each other. An air outlet 121 is disposed on the first base plate 125, and a drainage component 122 is disposed on the second base plate 126. The second base plate 126 is inclined from the end close to the first base plate 125 to the end away from the first base plate 125, and the drainage component 122 is disposed on the end of the second base plate 126 away from the first base plate 125. The second base plate 126 is inclined, and the height h1 of the end of the second base plate 126 near the first base plate 125 is higher than the height h2 of the end of the second base plate 126 away from the first base plate 126. The drainage component 122 is located at the end of the second base plate 126 away from the first base plate 125. At this time, the drainage component 122 is located at the lower end of the second base plate 126. When there is water on the second base plate 126, the inclined second base plate 126 can guide the water to flow towards the drainage component 122 more efficiently. The baffle 1222 of the drainage component 122 collects and guides the water until it is guided into the U-shaped drainage channel 1223.

[0040] In one embodiment, reference is made to... Figure 4 Both sides of the second base plate 126 are provided with guide side plates 1261, with at least one of the two guide side plates 1261 moving towards the other at one end 1261a away from the first base plate 125. Since the guide side plates 1261 are located at both ends of the second base plate 126, they can also guide the water flow on the second base plate 126 into the drainage assembly 122. In addition, an air guide channel is also formed between the two guide side plates 1261, which guides and collects the air in the top air duct 12 to the evaporator 13, preventing the air in the top air duct 12 from flowing into other gaps in the housing 10.

[0041] In one embodiment, combined with Figure 3 and Figure 4 The first base plate 125 is used to install the fan 14. The first base plate 125 is provided with support ribs 1251, which are located at the edge of the air outlet 121 and support the fan 14. The support ribs 1251 cooperate with the fan 14 to limit its movement, ensuring that the fan 14 can be stably fixed to the duct cover 1201. In addition, the support ribs 1251 can also converge the airflow from the air outlet 121, thereby allowing the converged airflow to be delivered more orderly into the cooling chamber 11.

[0042] In one embodiment, combined with Figure 3 and Figure 4The evaporator 13 in the refrigeration chamber 11 can be positioned above the second base plate 126. A vertical rib 1252 is provided at the connection point between the first base plate 125 and the second base plate 126. The vertical rib 1252 extends along the width of the first base plate 125 and has a groove 1253 extending from the first base plate 125 towards the second base plate 126. When water droplets fall onto the surface of the evaporator 13 located on the upper part of the second base plate 126, the dripping water can move towards the drain assembly 122 under the action of the inclined second base plate 126, thereby quickly draining the water. Furthermore, the vertical rib 1252 can prevent water from flowing back into the first base plate 125, further preventing water from being discharged into the refrigeration chamber 11 from the air outlet 121. Because the vertical rib 1252 has a groove 1253, when water is present in the first base plate 125, the water can flow out from the groove 1253 and into the second base plate 126.

[0043] In one embodiment, reference is made to... Figure 3 and Figure 5 The air outlet 121 is provided with a grille 1211, which protrudes away from the air duct cover 1201. Since the area of ​​the grille 1211 is larger than that of the air outlet 121, the protruding grille 1211 can increase the air outlet area, thereby more effectively cooling the opening end 11b of the cooling chamber 11.

[0044] In one embodiment, reference is made to... Figure 1 and Figure 5 The grille 1211 includes a baffle plate 1212, which is perpendicular to the first base plate 125 and extends downward along the first base plate 125. The baffle plate 1212 is located on the side of the first base plate 125 near the opening end 11b of the cooling chamber 11. The baffle plate 1212 can block and guide the air from the air outlet 121, thereby causing the air from the air outlet 121 to blow downward. This ensures that items near the opening end 11b of the cooling chamber 11 can exchange heat with the cold air from the air outlet 121 first, thereby effectively improving the cooling efficiency of items near the opening end 11b of the cooling chamber 11.

[0045] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A duct assembly, characterized in that, The air duct assembly, located on the inner top wall of the refrigeration chamber of the refrigeration equipment, includes: The duct cover can form a top duct with the inner top wall of the refrigeration equipment. The top duct can accommodate the fan and evaporator inside the refrigeration equipment. The duct cover is also provided with an air outlet, which can discharge air towards the opening end of the refrigeration chamber of the refrigeration equipment. A drainage component is provided at the end of the air duct cover away from the air outlet, and a drainage outlet is provided at the bottom of the drainage component.

2. The air duct assembly according to claim 1, characterized in that, The drainage component includes a baffle, the two ends of which are connected to the two sides of the air duct cover, and a U-shaped drainage groove is formed in the middle of the baffle. The drainage outlet is located at the bottom of the drainage groove.

3. The air duct assembly according to claim 2, characterized in that, The duct cover includes a first side and a second side, and the U-shaped drainage groove is located near the second side.

4. The air duct assembly according to claim 3, characterized in that, The duct cover is also provided with a guide rib, the first end of the guide rib is inclined to the second end of the guide rib so that the guide rib can guide the water on the duct cover to the U-shaped drainage channel. The first end of the guide rib is the end close to the first side, and the second end of the guide rib is the end close to the second side.

5. The air duct assembly according to any one of claims 1 to 4, characterized in that, The duct cover includes a first base plate and a second base plate connected to each other. The air outlet is disposed on the first base plate, and the drainage component is disposed on the second base plate. The second base plate is inclined from one end close to the first base plate to the end away from the first base plate, and the drainage component is disposed on the end of the second base plate away from the first base plate.

6. The air duct assembly according to claim 5, characterized in that, The second base plate has flow guide side plates on both sides, and at least one of the two flow guide side plates is positioned towards the other at the end furthest from the first base plate; and / or, The first base plate is used to install the fan. The first base plate is provided with support ribs, which are located at the edge of the air outlet and are used to support the fan. And / or, The evaporator in the refrigeration chamber can be disposed above the second base plate. A vertical rib is provided at the connection position between the first base plate and the second base plate. The vertical rib extends along the width direction of the first base plate and has a groove extending from the first base plate to the second base plate.

7. The air duct assembly according to claim 5, characterized in that, The air outlet is provided with a grille, which protrudes away from the air duct cover.

8. The air duct assembly according to claim 7, characterized in that, The grille includes a baffle plate that is perpendicular to the first base plate and extends downward along the air duct cover plate. The baffle plate is located on the side of the first base plate near the opening end of the cooling chamber.

9. A refrigeration device, characterized in that, include: The air duct assembly according to any one of claims 1 to 8; The housing contains a refrigeration chamber. The air duct assembly is disposed on the inner top wall of the refrigeration chamber and forms a top air duct with the inner top wall of the refrigeration chamber. The air outlet can discharge air towards the opening end of the refrigeration chamber. The fan is installed inside the top air duct and is located near the air outlet; An evaporator is installed inside the top air duct, and the fan is located between the air outlet and the evaporator.

10. The refrigeration equipment according to claim 9, characterized in that, The air outlet is located on the side of the duct cover near the opening end of the cooling chamber, and the air outlet is oriented downwards; and / or, The refrigeration equipment also includes a back plate, which is disposed in the inner rear part of the refrigeration chamber and forms a rear air duct between the back plate and the inner rear part of the refrigeration chamber. The rear air duct is connected to the top air duct and has an air inlet extending along the width direction of the back plate.

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