Condenser of refrigeration extractor hood and refrigeration extractor hood

Abstract

The condenser comprises a main body and a refrigerant channel, the main body can conduct heat, the refrigerant channel is arranged on the main body, the main body is in a hollow pipeline shape, a gap is formed in the wall portion of the main body, and the refrigerant channel is communicated with the main body. The gap forms a refrigerant channel through which a refrigerant passes so as to be in direct contact with the main body, and at least part of the main body is in a columnar spiral shape. Compared with the prior art, the condenser has the advantages that the whole condenser is in a pipeline shape, the inside of the condenser can dissipate heat through oil smoke passing through the inside of the pipeline, and a heat transfer path between the refrigerant channel and the oil smoke for heat dissipation is short, so that a refrigerant flowing in the pipe wall of the condenser can be fully dissipated, and the heat dissipation efficiency is improved. And the refrigeration effect of the refrigeration assembly can be improved.

Description

Technical Field

[0001] The utility model relates to a refrigeration device, in particular to a condenser of a refrigeration range hood and a refrigeration range hood using the condenser. 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 first technical problem to be solved by the present invention is to provide a condenser for a refrigeration range hood in view of the deficiencies in the above-mentioned prior art, which can improve the heat exchange efficiency.

[0007] The second technical problem to be solved by the utility model is to provide a refrigeration range hood using the above condenser.

[0008] The technical solution adopted by the utility model to solve the first technical problem is: a condenser of a refrigeration range hood, characterized in that:

[0009] The condenser includes a main body capable of conducting heat and a refrigerant channel arranged on the main body. The main body portion is in the shape of a hollow pipe. A gap is formed inside the wall of the main body. The gap constitutes the refrigerant channel for the refrigerant to pass through and thus directly contact the main body. The main body is at least partially columnar and spiral.

[0010] 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, thereby improving the cooling effect of the refrigeration component.

[0011] Furthermore, the main body includes a first part and a second part, the first part is a hollow cuboid or cylinder, the second part is a columnar spiral, and the second part is located inside the space surrounded by the first part. Thus, the main body can be conveniently arranged through the first part on the outside, and in particular, the main body can be directly arranged at the air outlet of the fan, so that the heat of the main body can be conducted to the first shell of the oil fume suction component with a larger heat dissipation area and the metal 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 airflow, and the condenser as a whole is at least partially spiral, with a larger area in contact with oil fume under the same volume, which can further improve the overall heat exchange efficiency.

[0012] Preferably, the two main body parts are connected by surfaces, and the second part extends inwardly from the wall surface of the first part.

[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] The first technical solution adopted by the utility model to solve the above-mentioned second technical problem is: a refrigeration range hood, including a fume suction component and a refrigeration component, characterized in that: the refrigeration component includes the condenser as described above, and the condenser is arranged downstream of the fume suction component along the fume flow path.

[0016] 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.

[0017] Preferably, the oil fume suction assembly comprises a first shell and a fan arranged in the first shell;

[0018] 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.

[0019] Preferably, the main body is arranged longitudinally, and the refrigerant channel is in a longitudinally arranged spiral shape or a parallel reflux shape.

[0020] The second technical solution adopted by the utility model to solve the above-mentioned second technical problem is: a refrigeration range hood, including a fume suction component and a refrigeration component, the fume suction component including a first shell and a fan arranged in the first shell; it is characterized in that: the refrigeration component includes the condenser as described above, the condenser is connected to the first shell and is arranged at the air outlet of the fan.

[0021] 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.

[0022] Preferably, the main body is arranged longitudinally, and the bottom of the main body is formed with an outwardly bent flange, which is fixed to the top of the first shell. As a result, the main body can be directly arranged at the air outlet of the fan, so that the heat of the main body can be transferred to the first shell of the range fumes suction assembly and the metal connection parts such as the volute of the fan with a larger heat dissipation area through heat conduction, which is equivalent to a wider heat transfer area for the airflow, thereby improving the overall heat exchange efficiency.

[0023] 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, thereby improving the refrigeration effect of the refrigeration component; the first part in the shape of a rectangular parallelepiped on the outside of the main body can be conveniently arranged, and in particular, the main body can be directly arranged at the air outlet of the fan, so that 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 by heat conduction, which is equivalent to a wider heat transfer area due to the action of the airflow, and the condenser as a whole is at least partially spiral, and has a larger area in contact with the oil smoke under the same volume, which can further improve the overall heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of a range hood according to a first embodiment of the utility model;

[0025] Figure 2 This is a schematic diagram of the exploded structure of the range hood of the first embodiment of the utility model;

[0026] 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;

[0027] Figure 4 It is a cross-sectional view of a refrigeration assembly of a range hood according to the first embodiment of the utility model;

[0028] Figure 5 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 6 A cross-sectional view of a condenser of a range hood according to a first embodiment of the utility model;

[0030] 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;

[0031] Figure 8 A top view of a condenser of a refrigeration assembly of a range hood according to a third embodiment of the utility model;

[0032] Fig. 9 This is a front view of a condenser of a refrigeration assembly of a range hood according to a third embodiment of the 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 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.

[0038] 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.

[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 into the kitchen through the cooling fan 25 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 (room temperature air) into the second housing 21.

[0040] The second housing 21 is provided with a partition 26, thereby dividing the second housing 21 into a first chamber 213 and a second chamber 214, and the two chambers are isolated from each other. The first chamber 213 is a cold chamber, and the evaporator 23 is arranged in the first chamber 213, and the second chamber 214 is a hot chamber, and the compressor 22 and the condenser 24 are arranged in the second chamber 214.

[0041] 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, preferably a cylindrical shape. The refrigerant channel 242 is formed inside the wall of the main body 241. In the present embodiment, it is in a parallel reflux shape. In the present embodiment, the main body 241 is arranged longitudinally, especially vertically. The upper and lower ends of the main body 241 are open, and the refrigerant channel 242 is also arranged longitudinally. 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 due to processing problems, such as bubbles, should be regarded as a situation without gaps). 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 space between the two aluminum plates is inflated to form the above-mentioned refrigerant channel 242, and then the whole is rolled into the desired shape. 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.

[0042] On the oil fume flow path, the condenser 24 is arranged downstream of the fan 12. 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 duct (not shown) as a part of the smoke exhaust duct. That is, the space surrounded by the heat conducting plate 2411 of the inner layer of the main body 241 constitutes a smoke exhaust channel 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 and the outer wall surface of the outer heat conducting plate 2411 both constitute heat dissipation surfaces. The inner heat dissipation surface dissipates heat through the oil fume passing through the smoke exhaust channel 2412, and the outer heat dissipation surface contacts the room temperature air entering the second shell 21 from the kitchen indoor environment during operation, and can also achieve a certain degree of heat dissipation. The room temperature air constitutes a heat dissipation fluid.

[0043] Embodiment 2

[0044] See also Figure 7 In this embodiment, the difference from the above-mentioned embodiment 1 is that the refrigerant channel 242 is also arranged in a spiral shape, thereby increasing the heat dissipation area and extending the heat dissipation path. In addition, it can also guide and rectify the passing oil smoke and achieve a noise reduction effect.

[0045] Embodiment 3

[0046] See also Figure 8 and Fig. 9 In this embodiment, the difference from the above-mentioned embodiment one or two is that the main body 241 includes an integrated first part 2413 and a second part 2414, wherein the first part 2413 is a rectangular parallelepiped and the second part 2414 is a spiral, and the second part 2414 is located inside the space surrounded by the first part 2413, and the second part 2414 extends inward from the wall surface of the first part 2413, and is also a hollow cylinder, and the height direction is consistent with the first part 2413.

[0047] On the basis of the two heat conducting plates 2411 formed by hot rolling, a part is first rolled into a spiral shape to obtain the second part 2414, and then the remaining plate is rolled into a cuboid, and the joint seams are welded.

[0048] 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 can be fixed to the first shell 11 by screws. As a result, 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 heat conduction, which is equivalent to a wider heat transfer area under the action of airflow and a better heat dissipation effect. In order to ensure that the heat of the main body 241 is better transferred to the first shell 11, thermal conductive glue can be applied to the flange 243 of the condenser 24 and the first shell 11. This can improve heat transfer and make the connection better sealed after assembly and extrusion to prevent oil smoke leakage.

[0049] 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 (not shown), and the adapter is similar to an inverted air outlet hood commonly used in the art.

[0050] 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 condenser for a refrigeration range hood, characterized in that: The condenser includes a heat-conducting main body (241) and a refrigerant channel (242) arranged on the main body (241). The main body (241) is partially in the shape of a hollow pipe. A gap is formed inside the wall of the main body (241). The gap is configured as the refrigerant channel (242) for allowing the refrigerant to pass through and thus directly contact the main body (241). The main body (241) is at least partially in the shape of a columnar spiral.

2. The condenser of the refrigeration range hood according to claim 1, characterized in that: The main body (241) includes a first part (2413) and a second part (2414), wherein the first part (2413) is in the shape of a hollow cuboid or a cylinder, and the second part (2414) is in the shape of a columnar spiral, and the second part (2414) is located inside the first part (2413).

3. The condenser of the refrigeration range hood according to claim 2, characterized in that: The second portion (2414) extends inwardly from the wall surface of the first portion (2413).

4. The condenser of the refrigeration range hood according to any one of claims 1 to 3, 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).

5. A refrigeration range hood, comprising a range hood assembly and a refrigeration assembly, characterized in that: The refrigeration component comprises a condenser according to any one of claims 1 to 4, and the condenser is arranged downstream of the oil fume suction component along the oil fume flow path.

6. The refrigeration range hood according to claim 5, characterized in that: The refrigeration component is arranged on the oil fume suction component.

7. The refrigeration range hood according to claim 6, characterized in that: The oil fume suction assembly comprises a first shell (11) and a fan (12) 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 are arranged in the second shell (21); and the second shell (21) is arranged on the first shell (11).

8. The refrigeration range hood according to claim 5, characterized in that: The main body (241) is arranged longitudinally, and the refrigerant channel (242) is in a longitudinally arranged spiral shape or a parallel reflux shape.

9. 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); characterized in that: The refrigeration assembly comprises the condenser according to claim 2, wherein the condenser is connected to the first shell (11) and is arranged at the air outlet of the fan (12).

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 main body (241) is arranged longitudinally, and a flange (243) bent outward is formed at the bottom of the main body (241), and the flange (243) is fixed to the top of the first shell (11).

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