Refrigeration range hood

Abstract

The utility model discloses a refrigeration extractor hood which comprises an oil smoke suction assembly and a refrigeration assembly, and the oil smoke suction assembly comprises a first shell and a fan arranged in the first shell; the refrigeration assembly comprises a condenser, the condenser is arranged on the downstream portion, along the oil fume flowing path, of the oil fume suction assembly, the condenser comprises a main body capable of conducting heat and a refrigerant channel formed in the main body, and the main body is a hollow cuboid capable of allowing oil fume sucked by the oil fume suction assembly to pass through. And the main body is arranged at the air outlet of the fan and is connected with the first shell.

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 pipe, it is usually not possible to ensure that the condenser can be completely close to the exhaust pipe when it is wrapped, resulting in an air gap layer; and the oil smoke needs to pass through the heat-conducting smoke pipe to exchange heat with the pipe wall of the condenser, and the long heat exchange path will lead to low heat exchange efficiency. In addition, the condenser only dissipates heat through the oil smoke, and most of the oil smoke does not contact the condenser when passing through the condenser, and cannot drive the heat of the condenser, resulting in low heat exchange efficiency. The poor heat dissipation effect of the condenser will directly affect the cooling effect of the range hood air conditioner, so it needs further improvement. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a refrigeration range hood to improve the heat exchange efficiency in view of the deficiencies in the above-mentioned prior art.

[0007] The utility model solves the above technical problems by adopting the following technical solution: a refrigeration range hood, comprising a range hood assembly and a refrigeration assembly, wherein the range hood assembly comprises a first shell and a fan arranged in the first shell; the refrigeration assembly comprises a condenser, and the condenser is arranged downstream of the range hood assembly along the flow path of the range hood, and is characterized in that:

[0008] The condenser includes a heat-conducting main body and a refrigerant channel arranged on the main body. The main body is a hollow rectangular parallelepiped through which the oil smoke sucked by the oil smoke suction component can pass. The main body is arranged at the air outlet of the fan and connected to the first shell.

[0009] By making the condenser as a whole in the shape of a pipe, the heat inside the condenser can be dissipated through the oil smoke passing through the inside of the pipe, and the heat transfer path between the refrigerant channel and the dissipated oil smoke is short, so that the refrigerant flowing inside the condenser tube wall can be fully dissipated. The main body of the condenser is in the shape of a rectangular parallelepiped and is directly arranged at the air outlet of the fan. Therefore, the heat of the main body can be transferred to the first shell of the oil smoke suction component with a larger heat dissipation area and the metal connecting parts such as the volute of the fan through heat conduction, which is equivalent to a wider heat transfer area under the action of the airflow, thereby improving the overall heat exchange efficiency, and then the cooling effect of the refrigeration component.

[0010] Preferably, the main body is arranged vertically, and the inner wall portion of the main body is in the shape of a vertically extending protrusion, thereby guiding the oil droplets gathered on the inner side of the main body to flow downward to avoid affecting the heat exchange performance of the main body. In addition, compared with the horizontal protrusions, the oil smoke can only contact the lower half of the protrusion during the rising process. The vertical protrusions of the utility model can all contact with the oil smoke rising upward, thereby increasing the heat dissipation area in contact with the oil smoke and further improving the heat dissipation effect.

[0011] Preferably, a gap is formed inside the wall portion of the main body, and the gap constitutes the refrigerant channel for the refrigerant to pass through and directly contact the main body, and the main body is convex at a position corresponding to the refrigerant channel.

[0012] Preferably, the refrigerant channel includes at least three vertically extending first channels, a second channel connected between the upper ends of two adjacent first channels, and a third channel connected between the lower ends of two adjacent first channels. The second channel and the third channel extend in opposite directions at both ends of the same first channel, thereby presenting a parallel reflux shape as a whole, which can have sufficient contact time with the oil smoke.

[0013] Preferably, in order to ensure a shorter heat exchange 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.

[0014] Furthermore, the two layers of heat conducting plates have a gap only at a position where the refrigerant channel is formed.

[0015] Furthermore, in order to facilitate the connection between the condenser and the first shell, a flange bent outward is formed at the bottom of the main body, and the flange is fixed to the top of the first shell.

[0016] Furthermore, a heat-conducting support block is provided inside the main body, the support block extends along the length direction and / or width direction of the main body, and the support block contacts the inner wall surface of the main body, thereby enhancing the strength of the main body, and at the same time conducting the heat of each wall surface of the main body, increasing the contact area of ​​the flowing wind, and improving the heat dissipation effect.

[0017] Furthermore, the condenser is in contact with the volute of the fan and the contact area is S 1 , the surface area of ​​the condenser is S 2 , and satisfy S 1 / S 2 ≥0.01, which ensures that when the condenser is directly set at the air outlet of the fan, there is enough heat dissipation area to transfer the heat of the main body to the metal component of the fan volute with a larger heat dissipation area, which is equivalent to a wider heat transfer area for the airflow, thereby improving the overall heat exchange efficiency and thus improving the cooling effect of the refrigeration component.

[0018] Preferably, the refrigerant channel has a refrigerant inlet and a refrigerant outlet, and the refrigerant channel has at least two refrigerant channels, and each refrigerant channel shares a refrigerant inlet and a refrigerant outlet, thereby reducing the flow area of ​​the refrigerant, making the inner diameter of the refrigerant channel smaller, the refrigerant flow rate greater, and the heat exchange effect of the condenser better.

[0019] Furthermore, the refrigeration component is arranged on the oil fume suction component, thereby making it easy to install the refrigeration component and also reducing the space occupied on both sides of the oil fume suction component.

[0020] Preferably, the oil fume suction assembly comprises a first shell and a fan arranged in the first shell;

[0021] 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.

[0022] Compared with the prior art, the advantages of the utility model are: by making the condenser as a whole in the shape of a pipe, the heat inside the condenser can be dissipated through the oil smoke passing through the inside of the pipe, and the heat transfer path between the refrigerant channel and the heat-dissipating oil smoke is short, so that the refrigerant flowing inside the condenser tube wall can be fully dissipated. The main body of the condenser is in the shape of a rectangular parallelepiped and is directly arranged at the air outlet of the fan. Therefore, the heat of the main body can be transferred to the first shell of the oil smoke suction component with a larger heat dissipation area and the heat-conducting connecting parts such as the volute of the fan by means of heat conduction, which is equivalent to a wider heat transfer area under the action of the airflow, thereby improving the overall heat exchange efficiency, and thus the cooling effect of the refrigeration component. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of a range hood according to a first embodiment of the utility model;

[0024] Figure 2 This is a schematic diagram of the exploded structure of the range hood of the first embodiment of the utility model;

[0025] Figure 3 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;

[0026] 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;

[0027] 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;

[0028] Figure 6 for Figure 5 A schematic diagram of the partial enlargement of Ⅰ;

[0029] Figure 7 A schematic diagram of a condenser of a refrigeration assembly of a range hood according to a second embodiment of the utility model;

[0030] Figure 8 This is a schematic diagram of the unfolded state of the condenser of the refrigeration assembly of the range hood according to the second embodiment of the utility model. DETAILED DESCRIPTION

[0031] 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.

[0032] 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.

[0033] Embodiment 1

[0034] 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.

[0035] 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, which can avoid the fan frame (part of the first shell 11) used to set the fan 12 from being offset and affecting its own oil fume suction effect. Moreover, the two modules are installed independently, which can meet the needs of both new decoration users and old users who are changing their decoration.

[0036] The refrigeration assembly includes a second shell 21, a compressor 22, an evaporator 23, a condenser 24 and a cooling fan 25, wherein the second shell 21 is arranged on the first shell 11, wherein the compressor 22, the evaporator 23, the condenser 24 and the cooling fan 25 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. The working principle of the refrigeration assembly is the same as the prior art.

[0037] 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 into the kitchen through the cooling fan 25 to provide a comfortable cooking environment temperature for the user. Air inlets (not shown) are provided on other sides of the second housing 21, such as the left and right sides, to replenish air (room temperature air) into the second housing 21.

[0038] 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 the refrigerant channel 242 is formed inside the wall of the main body 241. In the present embodiment, the main body 241 is arranged vertically, especially vertically, in the up and down directions. The wall 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. 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, should be regarded as a situation without gaps).

[0039] Optionally, the heat conducting plate 2411 is a metal plate, such as an aluminum plate. Two aluminum plates are hot-rolled and formed, and the two aluminum plates are inflated to form the above-mentioned refrigerant channel 242, and then the whole is rolled into the desired shape, and the joint seams are welded. After hot rolling, the refrigerant in the refrigerant channel 242 can withstand a pressure of up to 2.3MPa, 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 is not higher than 50°C under natural conditions. 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, which in turn affects the overall cooling effect of the refrigeration component.

[0040] On the oil fume 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 an air outlet cover (not shown), or connected to the exhaust pipe (not shown) as a part of the exhaust pipe. The space surrounded by the heat conducting plate 2411 of the inner layer of the main body 241 constitutes the exhaust passage 2412 through which the oil fume exhausted by the fan 12 passes before reaching the public flue or being discharged into the room. The inner wall surface of the inner heat conducting plate 2411 (i.e., the inner wall surface of the main body 241) and the outer wall surface of the outer heat conducting plate 2411 (i.e., the outer wall surface of the main body 241) both constitute the heat dissipation surface. The inner heat dissipation surface dissipates heat through the oil fume passing through the exhaust passage 2412, and the outer heat dissipation surface contacts the room temperature air entering the second housing 21 from the kitchen indoor environment during operation, and can also achieve a certain degree of heat dissipation.

[0041] In this embodiment, the main body 241 of the condenser 24 is a hollow rectangular parallelepiped with openings at the upper and lower ends. The bottom of the main body 241 is formed with a flange 243 bent outward, which is used to be fixed to the top of the first shell 11 and directly connected to the air outlet of the fan 12. The flange 243 and the first shell 11 can be fixed by screws. Preferably, the condenser 24 is in contact with the volute of the fan 12 and the contact area is S 1 , the surface area of ​​condenser 24 is S 2 , and satisfy S 1 / S 2 ≥0.01. Thus, the heat of the main body 241 can be transferred to the first shell 11 with a larger heat dissipation area and the metal connecting parts such as the volute of the fan 12 by means of heat conduction, which is equivalent to a wider heat transfer area for the airflow and a better heat dissipation effect. In particular, the above-mentioned area ratio can ensure that when the condenser is directly arranged at the air outlet of the fan, there is enough heat dissipation area to transfer the heat of the main body to the metal part of the volute of the fan with a larger heat dissipation area. In order to ensure that the heat of the main body 241 is better transferred to the first shell 11, the flange 243 of the condenser 24 and the fitting part of the first shell 11 can be coated with thermal conductive glue, thereby improving heat transfer and better sealing of the connection after assembly and extrusion to prevent oil smoke leakage.

[0042] The upper end of the main body 241 can be connected to a circular smoke exhaust duct (not shown) through a square-to-circular adapter 26. The adapter 26 is similar to an inverted air outlet hood commonly used in the art.

[0043] A heat-conducting support block 244 is disposed inside the main body 241. The support block 244 may have one or at least two blocks, which extend along the length direction and / or width direction of the main body 241 and contact the inner wall surface of the main body 241. This can enhance the strength of the main body 241, and at the same time conduct the heat of each wall surface of the main body 241, increase the contact area of ​​the flowing wind, and improve the heat dissipation effect.

[0044] The refrigerant channel 242 is in a vertically arranged parallel reflux shape as a whole. The refrigerant channel 242 includes at least three vertically extending first channels 2423, a second channel 2424 connected between the upper ends of two adjacent first channels 2423, and a third channel 2425 connected between the lower ends of two adjacent first channels 2423. The second channel 2424 and the third channel 2425 are arranged in a staggered manner, that is, the second channel 2424 and the third channel 2425 extend in opposite directions at both ends of the same first channel 2423, the second channel 2424 extends in the direction of one of the adjacent first channels 2423 of the first channel 2423, and the third channel 2425 extends in the direction of the other adjacent first channel 2423 of the first channel 2423. The second channel 2424 is in an upwardly convex curved shape, preferably an arc shape, and the third channel 2425 is in a downwardly convex curved shape, preferably also an arc shape.

[0045] Since the refrigerant channel 242 is formed by blowing between two layers of heat conducting plates 2411, the corresponding positions of each heat conducting plate 2411 and the refrigerant channel 242 are convex (both the inward and outward surfaces are convex). As a result, the accumulated oil on the inner wall of the main body 241 melts under high temperature conditions and can flow downward along the convex surface of the heat conducting plate 2411 under the action of gravity.

[0046] Embodiment 2

[0047] See also Figure 7 and Figure 8 In this embodiment, the difference from the above-mentioned embodiment 1 is that in the embodiment 1, there is one refrigerant channel 242, and the refrigerant channel 242 has a refrigerant inlet 2421 and a refrigerant outlet 2422. In this embodiment, there are three refrigerant channels 242, and the three refrigerant channels 242 share one refrigerant inlet 2421 and a refrigerant outlet 2422.

[0048] Alternatively, the number of the refrigerant channels 242 may be 2 or greater than 3, as required.

[0049] The "fluid communication" referred to in the present invention refers to the spatial position relationship between two parts or parts (hereinafter collectively referred to as the first part and the second part), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or / and be transported to the second part. The first part and the second part can be directly connected, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, duct, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

Claims

1. A refrigeration range hood, comprising a range hood assembly and a refrigeration assembly, wherein the range hood assembly comprises a first shell (11) and a fan (12) arranged in the first shell (11); the refrigeration assembly comprises a condenser (24), and the condenser (24) is arranged downstream of the range hood assembly along a flow path of the range hood, characterized in that: The condenser (24) comprises a main body (241) capable of conducting heat and a refrigerant channel (242) arranged on the main body (241); the main body (241) is a hollow rectangular parallelepiped through which oil smoke sucked in by the oil smoke suction component can pass; the main body (241) is arranged at the air outlet of the fan (12) and is connected to the first shell (11).

2. The refrigeration range hood according to claim 1, characterized in that: The main body (241) is arranged vertically, and the inner wall surface portion of the main body (241) is in the shape of a vertically extending protrusion.

3. The refrigeration range hood according to claim 2, characterized in that: A gap is formed inside the wall of the main body (241), and the gap constitutes a refrigerant channel (242) for refrigerant to pass through and directly contact the main body (241). The main body (241) is convex at a position corresponding to the refrigerant channel (242).

4. The refrigeration range hood according to claim 3, characterized in that: The refrigerant channel (242) includes at least three vertically extending first channels (2423), a second channel (2424) connected between the upper ends of two adjacent first channels (2423), and a third channel (2425) connected between the lower ends of two adjacent first channels (2423), and the second channel (2424) and the third channel (2425) extend in opposite directions at both ends of the same first channel (2423).

5. The refrigeration range hood according to any one of claims 1 to 4, characterized in that: 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).

6. The refrigeration range hood according to any one of claims 1 to 4, characterized in that: The bottom of the main body (241) is formed with a flange (243) bent outwards, and the flange (243) is fixed to the top of the first shell (11).

7. The refrigeration range hood according to any one of claims 1 to 4, characterized in that: A heat-conducting support block (244) is arranged inside the main body (241); the support block (244) extends along the length direction and / or the width direction of the main body (241); the support block (244) is in contact with the inner wall surface of the main body (241).

8. The refrigeration range hood according to any one of claims 1 to 4, characterized in that: The condenser (24) is in contact with the volute of the fan (12) and the contact area is S1. The surface area of ​​the condenser (24) is S2, and S1 / S2≥0.

01.

9. The refrigeration range hood according to any one of claims 1 to 4, characterized in that: The refrigerant channel (242) has a refrigerant inlet (2421) and a refrigerant outlet (2422). The refrigerant channel (242) has at least two refrigerant channels, and each refrigerant channel (242) shares one refrigerant inlet (2421) and one refrigerant outlet (2422).

10. The refrigeration range hood according to claim 9, characterized in that: The refrigeration component is arranged on the oil fume suction component.

11. The refrigeration range hood according to claim 10, characterized in that: 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 are arranged in the second shell (21); and the second shell (21) is arranged on the first shell (11).

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