Condenser of refrigeration extractor hood and refrigeration extractor hood

Abstract

The utility model discloses a refrigeration extractor hood condenser and refrigeration extractor hood, the condenser comprises a main body capable of conducting heat and a refrigerant channel arranged on the main body, the main body is in the shape of a pipeline, the refrigerant channel is formed inside the wall part of the main body; the condenser further comprises a hollow heat conductor allowing oil smoke to pass through, and the heat conductor is arranged in the space defined by the main body and spaced from the main body. 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 fume passing through the inside of the pipeline, the heat conductor is arranged in the inner space of the main body, the oil fume passing through the condenser can be rectified through the heat conductor, and the oil fume can be better in contact with the main body and the heat conductor to dissipate heat; and heat can be dissipated more quickly through the heat conductor by utilizing the high flow speed in the middle, so that a refrigerant flowing in the pipe wall of the condenser can be fully dissipated, and the overall heat exchange efficiency is 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 is in a pipe shape, and the refrigerant channel is formed inside a wall portion of the main body;

[0010] The condenser further comprises a hollow heat conductor through which oil smoke can pass, and the heat conductor is arranged inside the space surrounded by the main body and spaced apart from the main body.

[0011] 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. A heat conductor is set in the internal space of the main body, and the heat conductor can be used to rectify the passing oil smoke so that it can better contact with the main body and the heat conductor to dissipate heat. The fast intermediate flow rate can also be used to dissipate heat faster through the heat conductor, so that the refrigerant flowing inside the condenser tube wall can be fully dissipated, thereby improving the overall heat exchange efficiency.

[0012] Furthermore, a heat conducting sheet is connected between the heat conductor and the main body, which can rectify and expand the heat dissipation area, and can also transfer part of the heat of the main body to the heat conductor, thereby further improving the heat exchange efficiency by utilizing the faster heat dissipation characteristic of the heat conductor.

[0013] Furthermore, the condenser also includes a hollow shell arranged outside the main body, and an interlayer for the flow of heat dissipation fluid is formed between the shell and the outer wall of the main body, thereby allowing part of the heat of the main body to be transferred to the shell, while most of it is taken away by the fluid, further improving the heat exchange efficiency.

[0014] Furthermore, the condenser also includes a heat conducting sheet connected between the heat conductor and the shell. The heat conducting sheet can rectify and expand the heat dissipation area, and can also transfer part of the heat of the main body to the shell, thereby further improving the heat exchange efficiency.

[0015] Preferably, the heat conductor is arranged at the center of the main body.

[0016] Preferably, the main body and the heat conductor are both cylindrical, and there are at least two heat conducting plates which are evenly arranged along the circumference of the main body, thereby reducing flow resistance and improving flow uniformity for better heat dissipation.

[0017] Preferably, in order to ensure a shorter refrigerant heat transfer path, the main body includes two layers of heat conducting plates, and the refrigerant channel is formed between the two layers of heat conducting plates.

[0018] Preferably, the two layers of heat conducting plates have a gap only at a position where the refrigerant channel is formed.

[0019] 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, the refrigeration component includes the condenser as described above, and the condenser is arranged downstream of the fume suction component on the fume flow path.

[0020] 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.

[0021] Preferably, the oil fume suction assembly comprises a first shell and a main fan arranged in the first shell;

[0022] 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.

[0023] The second technical solution adopted by the utility model to solve the above second technical problem is: a refrigeration range hood, comprising a fume suction component and a refrigeration component, characterized in that: the refrigeration component comprises a condenser as described above, and the condenser is arranged downstream of the fume suction component on the fume flow path;

[0024] The refrigeration assembly also includes a heat dissipation fan, which is in fluid communication with the interlayer and can blow gas for heat dissipation into the interlayer.

[0025] 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 interior thereof can dissipate heat through the oil smoke passing through the inside of the pipe, and a heat conductor is arranged in the internal space of the main body, so that the passing oil smoke can be rectified by the heat conductor so that it can better contact with the main body and the heat conductor to dissipate heat, and the fast intermediate flow rate can be utilized to dissipate heat faster through the heat conductor, so that the refrigerant flowing inside the condenser tube wall can be fully dissipated, thereby improving the overall heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of a range hood according to a first embodiment of the utility model;

[0027] Figure 2 This is a schematic diagram of the exploded structure of the range hood of the first embodiment of the utility model;

[0028] 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;

[0029] 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;

[0030] Figure 5 It is a schematic diagram of a condenser and a heat dissipation fan of a refrigeration assembly of a range hood according to a first embodiment of the utility model;

[0031] Figure 6 It is a cross-sectional view of a condenser and a heat dissipation fan of a refrigeration assembly of a range hood according to a first embodiment of the utility model;

[0032] Figure 7 It is a schematic diagram of a hidden housing of a condenser of a refrigeration assembly of a range hood according to a first embodiment of the utility model;

[0033] Figure 8 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;

[0034] Fig. 9 for Figure 8 A schematic diagram of the partial enlargement of Ⅰ;

[0035] Fig.10 It is a schematic diagram of a condenser of a refrigeration assembly of a range hood according to a second embodiment of the utility model. DETAILED DESCRIPTION

[0036] 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.

[0037] 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.

[0038] Embodiment 1

[0039] See also Figure 1 to Figure 4 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 main 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.

[0040] In this embodiment, the front side of the first housing 11 forms an air inlet 111, and a smoke baffle 14 is provided at the air inlet 111 to flip open and close the air inlet 111. The opening mode of the smoke baffle 14 can also be replaced by a composite motion of translation or rotation combined with translation in the art.

[0041] 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 main 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] See also Figures 4 to 9The 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, and the refrigerant channel 242 is formed inside the wall of the main body 241. In this embodiment, the main body 241 is arranged longitudinally, especially vertically, and the refrigerant channel 242 is in the shape of a longitudinal parallel reflux. 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). Optionally, the heat conducting plate 2411 is a metal plate, such as an aluminum plate, which is preferably hot-rolled and pressed, and the refrigerant channel 242 is formed between the two aluminum plates, and then the whole is 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, which in turn affects the overall cooling effect of the refrigeration component.

[0046] On the oil fume flow path, the condenser 24 is arranged downstream of the main fan 12, and it can be directly connected to the air outlet of the main fan 12, or connected to the main 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 for the oil fume exhausted by the main fan 12 to pass through before reaching the public flue or being discharged into the room, and the inner wall surface of the inner layer of the heat conducting plate 2411 (i.e. the inner wall surface 2413 of the main body 241) and the outer wall surface of the outer layer of the heat conducting plate 2411 (i.e. the outer wall surface 2414 of the main body 241) 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.

[0047] In order to further improve the heat exchange efficiency, a hollow shell 243 can be provided outside the main body 241 of the condenser 24, which is adapted to the shape of the main body 241 and is larger than the main body 241, so that it can be arranged at intervals on the outer periphery of the main body 241. Preferably, the shell 243 can be a hollow cylinder with openings at both ends in the axial direction. A hollow heat conductor 244 is arranged at intervals inside the space surrounded by the main body 241. Preferably, it can be a hollow cylinder with openings at both ends in the axial direction and arranged at the center of the main body 241. A heat conducting sheet 245 is connected between the inner side wall of the shell 241 and the outer side wall of the heat conductor 244. The heat conducting sheet 245 can have at least two and is distributed radially. The shell 243, the heat conductor 244 and the heat conducting sheet 245 are all made of heat conducting materials and can conduct heat, such as made of metal, more preferably made of aluminum. The shell 243 and the heat conductor 244 are also arranged longitudinally, and the opposite ends (upper and lower ends) are open.

[0048] When manufacturing the condenser 24, the heat conductor 244 and the heat conductive sheet 245 are firstly evenly arranged along the circumference and fully welded, and then grooves are made at corresponding angles in the axial direction of the main body 241, so that the heat conductor 244 and the heat conductive sheet 245 are aligned and placed, and then the connection between the main body 241 and the heat conductive sheet 245 is welded, so that the heat of the main body 241 can be well transferred to the internal heat conductive sheet 245 part and the heat conductor 244. The heat conductor 244 and the heat conductive sheet 245 can well rectify the uneven flow of the airflow in the original smoke exhaust channel 2412 into a uniform flow, better contact the inner wall 2413 of the main body 241, the heat conductor 244 and the heat conductive sheet 245, and the heat dissipation effect is greatly optimized.

[0049] In addition, the outer shell 243 is also grooved at corresponding angles, and is docked and welded with the above-welded main body 241 and heat conducting plate 245 (welded with the heat conducting plate 245 ), so that a circle of interlayer 246 is formed between the outer shell 243 and the main body 241 , which helps to transfer the heat of the main body 241 to the outer shell 243 .

[0050] In this embodiment, the parallel reflux is arranged longitudinally, either one-to-one or one-to-multiple. The refrigerant channel 242 is arranged around the heat conducting sheet 245, that is, the longitudinally extending portion thereof can be adjacent to the heat conducting sheet 245, thereby, the heat released by the refrigerant channel 242 can be conducted radially inward and outward through the heat conducting sheets 245 evenly arranged in the circumferential direction, and the central wind speed of the heat conductor 244 is high, and the heat dissipation is faster.

[0051] When the existing kitchen air conditioner is working, the range hood must also be started, that is, part of the cooling air generated by the air conditioner will be sucked out of the kitchen by the range hood and discharged into the flue, resulting in energy waste and reducing the cooling effect in the kitchen. However, the heat dissipation component of the utility model can work independently. The refrigeration component also includes a heat dissipation fan 27, which is arranged in the second shell 21, and its air inlet can be connected to the indoor environment fluid outside the second shell 21 through the air inlet 212 on the second shell 21.

[0052] When preparing food, turn on the air conditioning button of the refrigeration range hood, the compressor 22 of the refrigeration component starts working, the range hood module does not work, and the air inlet 111 is in a closed state. The heat dissipation fan 27 is started, and the air entering the second shell 21 from the outside of the second shell 21 enters the interlayer 246 through the heat dissipation fan 27, and the air flow rises to blow air to the metal walls on both sides of the interlayer 246 for heat dissipation.

[0053] When cooking, turn on the oil smoke button of the refrigeration range hood, the compressor 22 of the refrigeration component continues to work, and the smoke baffle 14 of the oil smoke component is opened. The heat dissipation fan 27 can be selected to continue to run or shut down. If it continues to run, the inside of the main body 241 of the condenser 24 is cooled by the airflow of the main fan 12 of the oil smoke component, and the interlayer 246 outside the main body 241 is cooled by the airflow of the heat dissipation fan 27. The combined effect of the two is better.

[0054] Alternatively, liquid may be passed through the interlayer 246 as a fluid for heat dissipation.

[0055] Embodiment 2

[0056] See also Fig.10 In the embodiment, the difference from the above-mentioned embodiment 1 is that the condenser 24 may not be provided with a shell 243.

[0057] 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 comprises a heat-conducting main body (241) and a refrigerant channel (242) arranged on the main body (241); the main body (241) is in a pipe shape, and the refrigerant channel (242) is formed inside a wall portion of the main body; The condenser further comprises a hollow heat conductor (244) through which oil smoke can pass; the heat conductor (244) is arranged inside the space enclosed by the main body (241) and is spaced apart from the main body (241).

2. The condenser of the refrigeration range hood according to claim 1, characterized in that: A heat conducting sheet (245) is connected between the heat conductor (244) and the main body (241).

3. The condenser of the refrigeration range hood according to claim 1, characterized in that: The condenser further comprises a hollow shell (243) arranged outside the main body (241), and an interlayer (246) for heat dissipation fluid to flow is formed between the shell (243) and the outer wall surface of the main body (241).

4. The condenser of the refrigeration range hood according to claim 3, characterized in that: The condenser further comprises a heat conducting sheet (245), wherein the heat conducting sheet (245) is connected between the heat conductor (244) and the housing (243).

5. The condenser of the refrigeration range hood according to claim 2 or 4, characterized in that: The heat conductor (244) is disposed at the center of the main body (241).

6. The condenser of the refrigeration range hood according to claim 5, characterized in that: The main body (241) and the heat conductor (244) are both cylindrical, and there are at least two heat conducting sheets (245) which are evenly arranged along the circumference of the main body (241).

7. The condenser of 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). The two layers of heat-conducting plates (2411) have a gap only at the position where the refrigerant channel (242) is formed.

8. 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 7, and the condenser is arranged downstream of the oil fume suction component on the oil fume flow path.

9. The refrigeration range hood according to claim 8, characterized in that: The refrigeration component is arranged on the oil fume suction component.

10. The refrigeration range hood according to claim 9, characterized in that: The oil fume suction assembly comprises a first shell (11) and a main 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 (24) are arranged in the second shell (21); and the second shell (21) is arranged on the first shell (11).

11. A refrigeration range hood, comprising a range hood assembly and a refrigeration assembly, characterized in that: The refrigeration component comprises a condenser as claimed in claim 3 or 4, and the condenser is arranged downstream of the oil fume suction component on the oil fume flow path; The refrigeration component also includes a heat dissipation fan (27), which is fluidly connected to the interlayer (246) and can blow gas for heat dissipation into the interlayer (246).

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