Refrigeration range hood

Abstract

The utility model discloses a refrigeration range hood which comprises an oil smoke suction assembly and a refrigeration assembly, the oil smoke suction assembly comprises a fan, the refrigeration assembly comprises a condenser, the condenser comprises a main body capable of conducting heat and a refrigerant channel, the main body is in a pipeline shape, and a gap is formed in the wall part of the main body; the gap forms at least one part of a refrigerant channel through which a refrigerant passes so as to be in direct contact with the main body; on the oil smoke flowing path, the condenser is arranged on the downstream of the draught fan, and a smoke discharging channel is formed by a space defined by a main body of the condenser. Compared with the prior art, the range hood has the advantages that the pipeline-shaped condenser is arranged and is positioned on the oil fume discharge path, so that the oil fume passing through the interior of a pipeline can quickly take away heat of a refrigerant through the heat-conducting main body, and the refrigerant passage is positioned in the pipe wall, so that the heat of the refrigerant can be quickly taken away; the oil smoke and the refrigerant directly contact with the heat-conducting main body, so that the heat conduction efficiency is high, the refrigeration effect of the refrigeration assembly can be improved, and reliable operation of the refrigeration assembly is ensured.

Description

Technical Field

[0001] The utility model relates to an oil fume purification device, in particular to a refrigeration range hood. Background Art

[0002] With the improvement of material living standards, people have higher and higher requirements for kitchen environment. People need to use stoves during cooking, which will generate a lot of heat in the kitchen, causing the temperature of the entire space to rise and the comfort of the environment to decrease. At present, most families use temporary fans to solve this problem. However, this method is not only inconvenient, but also occupies kitchen area.

[0003] For this purpose, a range hood with a refrigeration function has been disclosed in the prior art, which can blow out cold air from the housing of the range hood to cool down the kitchen. For example, a Chinese patent with application number 201810525673.7 discloses an air-conditioning range hood, in which the fume assembly of the air-conditioning range hood includes an oil fume channel; the air-conditioning assembly includes a condenser assembly, and the condenser assembly includes a condensation air inlet and a condensation air outlet, the condensation air outlet is connected to the oil fume channel, and the condensation air inlet is independent of the oil fume channel. However, the arrangement of this condenser uses the main fan for oil fume extraction to dissipate heat, which reduces the amount of oil fume sucked and exhausted, affecting the oil fume extraction effect.

[0004] There is also a kitchen air conditioner disclosed in a Chinese patent with application number 202110029969.1, which includes an air conditioning component and a range hood component. The air conditioning component includes a compressor, a condenser, a throttling element, and an evaporator. The range hood component includes an exhaust duct and a exhaust fan in the exhaust duct. The condenser is arranged around the outer wall of the exhaust duct.

[0005] This type of kitchen air conditioner can use oil smoke to dissipate heat from the condenser without the need for additional power. However, since the condenser is wrapped around the exhaust duct, it is usually not possible to ensure that the condenser can be completely close to the exhaust duct when wrapped, resulting in an air gap layer. As a result, the heat exchange efficiency is low and further improvement is still needed. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a refrigeration range hood in view of the deficiencies in the above-mentioned prior art, which can improve the heat exchange efficiency of the condenser of the refrigeration component therein and reduce the influence of the heat radiation of the condenser on other components in the range hood.

[0007] The technical solution adopted by the utility model to solve the above technical problems is: a refrigeration range hood, including a range hood assembly and a refrigeration assembly, the range hood assembly includes a fan, the refrigeration assembly includes a condenser, and is characterized in that:

[0008] The condenser comprises a main body capable of conducting heat and a refrigerant channel, wherein the main body is in a pipe shape, and a gap is formed inside a wall portion of the main body, and the gap constitutes at least a portion of the refrigerant channel for the refrigerant to pass through and directly contact the main body;

[0009] On the oil smoke flow path, the condenser is arranged downstream of the fan, and the space enclosed by the main body of the condenser constitutes a smoke exhaust channel.

[0010] By setting up a pipe-shaped condenser so that it is located on the path of oil fume exhaust, the oil fume passing through the inside of the pipe can quickly take away the heat of the refrigerant through the heat-conducting body. Since the refrigerant channel is located in the pipe wall, the oil fume and the refrigerant are in direct contact with the heat-conducting body, and the heat conduction efficiency is high, which can improve the cooling effect of the refrigeration component and ensure the reliable operation of the refrigeration component.

[0011] Preferably, in order to ensure a shorter refrigerant heat transfer path, the wall portion of the main body includes two layers of heat conducting plates, and the refrigerant channel is formed between the two layers of heat conducting plates.

[0012] Preferably, the heat conducting plate is an aluminum plate.

[0013] According to one aspect of the utility model, the main body is cylindrical.

[0014] Furthermore, to facilitate the installation of the condenser, an air outlet hood is provided at the air outlet of the fan, and the condenser is connected to the air outlet hood.

[0015] Preferably, the refrigerant channel is spiral-shaped, thereby allowing the refrigerant to have a longer path for heat conduction with the oil smoke.

[0016] According to another aspect of the utility model, the main body is a rectangular parallelepiped.

[0017] Furthermore, to facilitate the arrangement of the condenser, the condenser is directly arranged at the air outlet of the fan.

[0018] Furthermore, the condenser includes a columnar curled body curled in the space enclosed by the main body, and the columnar curled body is at least partially curled to the central area of ​​the cross-sectional area of ​​the space enclosed by the main body. By setting the columnar curled body, the high wind speed in the central area of ​​the main body can be expanded outward, thereby improving the heat exchange efficiency.

[0019] Furthermore, the columnar curled body is a heat conductor, and a gap is formed inside the wall of the columnar curled body. The gap constitutes a part of the refrigerant channel for the refrigerant to pass through and thus directly contact the columnar curled body. By arranging the refrigerant channel inside the wall of the columnar curled body, the heat exchange area can be increased within a limited space, and the refrigerant channel is formed in a manner that makes the heat exchange path shorter, thereby further improving the heat exchange efficiency.

[0020] Preferably, the end face of the columnar curled body is in a spiral shape, the circumference of the spiral is a, the circumference of the main body at the same end face is b, and a / (a+b)≥40% is satisfied, thereby placing as much heat as possible in the center and allowing the oil smoke to carry away the heat, thereby reducing the impact of the heat radiation of the condenser body on the compressor / evaporator, especially the impact of heat radiation on the compressor.

[0021] Preferably, the refrigeration assembly is arranged above the oil fume suction assembly, thereby making it easy to install the refrigeration assembly and also reducing the space occupied on both sides of the oil fume suction assembly.

[0022] Preferably, the oil fume suction assembly further comprises a first shell, and the fan is arranged in the first shell;

[0023] The refrigeration assembly further includes a second shell, a compressor and an evaporator. The compressor, the evaporator and the condenser are arranged in the second shell. The second shell is arranged on the first shell.

[0024] Compared with the prior art, the advantages of the utility model are: by setting a pipe-shaped condenser so that it is located on the path of oil fume exhaust, the oil fume passing through the inside of the pipe can quickly take away the heat of the refrigerant through the heat-conducting body, and since the refrigerant channel is located in the pipe wall, the oil fume and the refrigerant are in direct contact with the heat-conducting body, the heat conduction efficiency is high, and the refrigeration effect of the refrigeration component can be improved, ensuring the reliable operation of the refrigeration component. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of a range hood according to a first embodiment of the utility model;

[0026] Figure 2 It is a schematic diagram of the range hood of the first embodiment of the utility model, in which the range hood assembly and the refrigeration assembly respectively hide part of the housing;

[0027] Figure 3 It is a schematic diagram of a hidden housing of a refrigeration component of a range hood according to a first embodiment of the utility model;

[0028] Figure 4 It is a schematic diagram of a condenser of a refrigeration assembly of a range hood according to a first embodiment of the utility model;

[0029] Figure 5 It is a cross-sectional view of a condenser of a refrigeration assembly of a range hood according to a first embodiment of the utility model;

[0030] Figure 6 for Figure 5 A schematic diagram of the partial enlargement of Ⅰ;

[0031] Figure 7A schematic diagram of a condenser of a refrigeration assembly of a range hood according to a second embodiment of the utility model;

[0032] Figure 8 This is a cross-sectional view of a range hood according to a third embodiment of the present utility model. DETAILED DESCRIPTION

[0033] Embodiments of the present utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions.

[0034] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present utility model can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0035] Embodiment 1

[0036] See also Figure 1 to Figure 6 A refrigeration range hood includes a range hood assembly and a refrigeration assembly, wherein the range hood assembly includes a first shell 11 and a fan 12 disposed in the first shell 11. In this embodiment, the range hood assembly is in the form of a commonly used side-suction range hood. Optionally, it can be any form of existing top suction, low suction, ceiling type, etc. The first shell 11 can be a combination of one or more shells.

[0037] The oil fume suction component and the refrigeration component can be a whole or a split structure, that is, the oil fume suction component and the refrigeration component constitute independent modules respectively. When installed, the refrigeration component is mounted on the oil fume suction component, so that the refrigeration component does not occupy the left and right sides of the first shell 11 of the oil fume suction component, so that the fan frame (part of the first shell 11) used to set the fan 12 can be avoided. The fan frame 12 is offset and affects the oil fume suction effect itself. In addition, the two modules are installed independently, which can meet the needs of both new decoration users and old users who are changing their decoration.

[0038] The refrigeration assembly includes a second shell 21, a compressor 22, an evaporator 23 and a condenser 24, wherein the second shell 21 is arranged on the first shell 11, the compressor 22, the evaporator 23 and the condenser 24 can be arranged in the second shell 21, and a refrigerant passage is formed between the compressor 22, the evaporator 23 and the condenser 24, and the flow direction and working principle of the refrigerant are the same as the prior art.

[0039] A cold air outlet 211 is provided on the front side of the second housing 21, such as near the top. The evaporator 23 can be arranged near the cold air outlet 211. The cold air after heat exchange in the evaporator 23 is blown out from the cold air outlet 211 (a separate fan can be arranged to provide power) into the kitchen to provide a comfortable cooking environment temperature for the user. Air inlets 212 are provided on other sides of the second housing 21, such as the left and right sides, to replenish air into the second housing 21.

[0040] The condenser 24 includes a main body 241 and a refrigerant channel 242. The main body 241 is in the shape of a hollow pipe, and in this embodiment, it is cylindrical. The refrigerant channel 242 is formed inside the wall of the main body 241 and may be spiral. The wall of the main body 241 includes two layers of heat conducting plates 2411. The refrigerant channel 242 is formed between the two layers of heat conducting plates 2411. The two layers of heat conducting plates 2411 have a gap only at the position where the refrigerant channel 242 is formed, and the other parts are all fitted (the gaps in the parts outside the refrigerant channel 242 caused by processing problems, such as bubbles, etc., should be regarded as a situation without gaps). Optionally, the heat conducting plate 2411 is a metal plate, such as an aluminum plate, and two aluminum plates are hot-rolled and pressed, and the space between the two aluminum plates is inflated to form the above-mentioned refrigerant channel 242, and then rolled into a desired shape. After hot rolling, the refrigerant in the refrigerant channel 242 can withstand a pressure of up to 2.3 MPa, and there is zero gap contact between the refrigerant and the heat-conducting material, and the heat exchange efficiency is extremely high, so the surface temperature of the condenser under natural conditions is not higher than 50° C. However, in the fin type commonly used in existing air conditioners or the winding type described in the background technology, the refrigerant and the heat-conducting material cannot be completely matched without gaps, so the heat transfer is not smooth, resulting in a high temperature of the condenser itself, and external forced air is required to dissipate heat.

[0041] On the oil smoke flow path, the condenser 24 is arranged downstream of the fan 12, and it can be directly connected to the air outlet of the fan 12, or connected to the fan 12 through the air outlet cover 13, or connected to the smoke exhaust pipe (not shown) as a part of the smoke exhaust pipe. That is, the space surrounded by the heat conducting plate 2411 of the inner layer of the main body 241 constitutes the smoke exhaust channel 2412 through which the oil smoke exhausted by the fan 12 passes before reaching the public flue or being discharged into the room, and the inner wall surface of the inner layer heat conducting plate 2411 and the outer wall surface of the outer layer heat conducting plate 2411 both constitute the heat dissipation surface.

[0042] Embodiment 2

[0043] See also Figure 7 In this embodiment, the difference from the above-mentioned embodiment 1 is that the condenser 24 also includes a columnar curled body 243 curled in the space enclosed by the main body 241, and the columnar curled body 243 is at least partially curled to the central area of ​​the cross-sectional area of ​​the space enclosed by the main body 241. The central area in this embodiment refers to the area obtained by drawing a circle with the center point of the cross section of the inner wall surface of the main body 241 as the center, and the radius value is set so that the area occupies 3 / 4 of the cross-sectional area of ​​the cross section of the inner wall surface of the main body 241. Thus, the setting of the columnar curled body 243 allows the central high wind speed to expand outward, thereby improving the heat exchange efficiency. In another embodiment, if the main body is a hollow rectangular parallelepiped or cube shape through which oil smoke can pass (that is, the cross-sectional area of ​​the main body is a rectangular parallelepiped or a cube), then the central area refers to the area obtained by drawing a circle with the intersection of the diagonals of the rectangular parallelepiped or the cube as the center point and 1 / 2 of the short side length of the rectangle or 1 / 2 of the side length of the square as the radius. In other embodiments, the area is obtained by drawing a circle with the center point of the cross section of the space enclosed by the main body as the center and the shortest distance from the center point to the edge of the cross section of the space enclosed by the main body as the radius.

[0044] The columnar curled body 243 is a heat-conducting heat conductor, and a gap is formed inside its wall, which constitutes the refrigerant channel 242 (a part of the refrigerant channel 242 of the condenser 24) for the refrigerant to pass through and directly contact the columnar curled body 243. By arranging the refrigerant channel 242 inside the wall of the columnar curled body 243, the heat exchange area can be increased in a limited space, and the formation method of the refrigerant channel 242 makes the heat exchange path shorter, and the heat exchange efficiency is further improved. The end face of the columnar curled body 243 (the upper end face or the lower end face in the vertical placement state) is spiral, and the circumference of the spiral is a, and the circumference of the main body 241 at the same end face is b, and a / (a+b)≥40% is satisfied. Thus, as much heat as possible is placed in the center and taken away by the oil smoke, reducing the influence of the heat radiation of the main body 241 of the condenser 24 on the compressor 22 / evaporator 23, especially the influence of the heat radiation on the compressor 23.

[0045] Embodiment 3

[0046] See also Figure 8In this embodiment, the difference from the above-mentioned embodiment 1 is that the main body 241 of the condenser 24 is rolled into a cuboid and is directly arranged at the air outlet of the fan 12. It can be connected to the cylindrical smoke exhaust pipe (not shown) through a square-to-circular adapter 25 (similar to the structure of the inverted air outlet cover 13). At this time, the refrigerant channel 242 can be in a vertically arranged parallel reflux shape, that is, the refrigerant channel 242 includes at least three vertically extending first channels 2421, and a second channel connected between the upper ends of two adjacent first channels 2421. 2422 and a third channel 2423 connected between the lower ends of two adjacent first channels 2421, the second channel 2422 and the third channel 2423 are arranged in a staggered manner, that is, the second channel 2422 and the third channel 2423 extend in opposite directions at both ends of the same first channel 2421, the second channel 2422 extends in the direction of one adjacent first channel 2421 of the first channel 2421, and the third channel 2423 extends in the direction of the other adjacent first channel 2421 of the first channel 2421. The second channel 2422 is in a curved shape that bulges upward, preferably in an arc shape, and the third channel 2423 is in a curved shape that bulges downward, preferably also in an arc shape.

Claims

1. A refrigeration range hood, comprising a range hood assembly and a refrigeration assembly, wherein the range hood assembly comprises a fan (12), and the refrigeration assembly comprises a condenser (24), characterized in that: The condenser (24) includes a heat-conducting body (241) and a refrigerant channel (242); the body (241) is in the shape of a pipe, and a gap is formed inside the wall of the body (241); the gap is configured to allow the refrigerant to pass through and thereby directly contact at least a portion of the refrigerant channel (242) with the body (241); On the oil fume flow path, the condenser (24) is arranged downstream of the fan (12), and the space enclosed by the main body (241) of the condenser (24) constitutes a smoke exhaust channel (2412).

2. The refrigeration range hood according to claim 1, characterized in that: The wall portion of the main body (241) includes two layers of heat-conducting plates (2411), and the refrigerant channel (242) is formed between the two layers of heat-conducting plates (2411).

3. The refrigeration range hood according to claim 2, characterized in that: The heat conducting plate (2411) is an aluminum plate.

4. The refrigeration range hood according to any one of claims 1 to 3, characterized in that: The main body (241) is cylindrical.

5. The refrigeration range hood according to claim 4, characterized in that: An air outlet hood (13) is provided at the air outlet of the fan (12), and the condenser (24) is connected to the air outlet hood (13).

6. The refrigeration range hood according to claim 4, characterized in that: The refrigerant channel (242) is spiral-shaped.

7. The refrigeration range hood according to any one of claims 1 to 3, characterized in that: The main body (241) is in the shape of a rectangular parallelepiped.

8. The refrigeration range hood according to claim 7, characterized in that: The condenser (24) is directly arranged at the air outlet of the fan (12).

9. The refrigeration range hood according to any one of claims 1 to 3, characterized in that: The condenser (24) comprises a columnar curled body (243) curled in a space enclosed by a main body (241), and the columnar curled body (243) is at least partially curled to a central area of ​​a cross-sectional area of ​​the space enclosed by the main body (241).

10. The refrigeration range hood according to claim 9, characterized in that: The columnar curled body (243) is a heat conductor, and a gap is formed inside the wall of the columnar curled body (243). The gap constitutes a part of the coolant channel (242) for the coolant to pass through and directly contact the columnar curled body (243).

11. The refrigeration range hood according to claim 10, characterized in that: The end face of the columnar curled body (243) is in a spiral shape, the circumference of the spiral shape is a, the circumference of the main body (241) at the same end face is b, and a / (a+b)≥40% is satisfied.

12. The refrigeration range hood according to any one of claims 1 to 3, characterized in that: The refrigeration component is arranged on the oil fume suction component.

13. The refrigeration range hood according to claim 12, characterized in that: The oil fume suction assembly further comprises a first shell (11), and the fan (12) is arranged in the first shell (11); The refrigeration assembly further comprises a second shell (21), a compressor (22) and an evaporator (23); the compressor (22), the evaporator (23) and the condenser (24) are arranged in the second shell (21); and the second shell (21) is arranged on the first shell (11).

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