Refrigeration assembly and refrigeration extractor hood

Abstract

The invention discloses a refrigeration assembly and a refrigeration range hood, the refrigeration assembly comprises a compressor, an evaporator and a condenser, the condenser comprises a main body and a shell arranged on the outer side of the main body, and an interlayer is formed between the main body and the shell; the lower water collecting tank is used for collecting condensate water generated by the evaporator; the water pump pumps condensate water in the lower water collecting tank into the interlayer to cool the condenser, and the interlayer is in fluid communication with the lower water collecting tank through a water outlet pipe. Compared with the prior art, the air conditioner has the advantages that the condensate water circularly flows, so that the condensate water is effectively utilized, and the limitation of the water volume of the condensate water caused by the limitation of the water collecting tank is avoided, so that long-time heat dissipation can be provided for the condenser, and the refrigeration effect is improved.

Description

Technical Field

[0001] The invention relates to a refrigeration device, in particular to a refrigeration component and a refrigeration range hood using the refrigeration component. 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] In the prior art, a range hood with a refrigeration function has been disclosed, which can blow out cold air from the housing of the range hood to cool down the kitchen. How to improve the heat dissipation effect of the condenser and thus improve the refrigeration efficiency is an important problem to be solved by this range hood. A common practice is to use condensed water. For example, the Chinese patent application number 202010154337.3 of the applicant discloses an air-conditioning range hood, including an air-conditioning component and an oil fume suction component. The air-conditioning component includes a compressor, a first heat exchanger and a second heat exchanger. The oil fume suction component includes a fan frame and a smoke inlet chamber provided below the fan frame. The first heat exchanger is a condenser, and the second heat exchanger is an evaporator. It also includes a condensed water collection device, which includes a water collection tank, and the condensed water can be sprayed to the condenser by a water pump for evaporation to improve the heat dissipation effect of the condenser. Due to the installation space, the capacity of the water collection tank is small, and the water collection tank can only serve the function of collecting water, which has limited effect on improving the refrigeration effect. Summary of the invention

[0004] The first technical problem to be solved by the present invention is to provide a refrigeration component that can effectively utilize condensed water and improve the refrigeration effect in view of the deficiencies in the above-mentioned prior art.

[0005] The second technical problem to be solved by the present invention is to provide a refrigeration range hood using the above refrigeration assembly.

[0006] The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: a refrigeration component, including a compressor, an evaporator and a condenser, characterized in that:

[0007] The condenser comprises a main body and a shell arranged outside the main body, and a sandwich is formed between the main body and the shell;

[0008] The refrigeration assembly also includes:

[0009] A lower sump for collecting condensed water produced by the evaporator; and

[0010] A water pump pumps the condensed water in the lower water collecting tank into the interlayer to cool the condenser. The interlayer is fluidically connected to the lower water collecting tank through a water outlet pipe.

[0011] By allowing the condensed water to circulate, the condensed water is effectively utilized, and the limitation of the condensed water amount caused by the water collection tank is avoided, thereby providing long-term heat dissipation for the condenser and improving the cooling effect.

[0012] Furthermore, in order to cool the water after heat exchange with the condenser before entering the lower water collection tank to avoid excessive water temperature in the lower water collection tank, the refrigeration component also includes a diversion tank, the interlayer is connected to the diversion tank through a water outlet pipe, and the diversion tank is fluidically connected to the lower water collection tank.

[0013] Preferably, the lower water collecting tank comprises a first water collecting tank arranged below the evaporator to receive condensed water and a second water collecting tank arranged in parallel with the first water collecting tank, and the first water collecting tank and the second water collecting tank are fluidically connected, thereby making full use of the space of the refrigeration assembly to provide more condensed water.

[0014] Preferably, the refrigeration assembly also includes a first partition, and the first water collecting tank and the second water collecting tank are respectively located on two opposite sides of the first partition, and a gap is opened at the bottom of the first partition at positions corresponding to the first water collecting tank and the second water collecting tank, thereby allowing fluid communication between the first water collecting tank and the second water collecting tank.

[0015] According to one aspect of the present invention, the diverter trough, condenser and first water collecting trough are located on the same side of the first partition, and a first diverter hole is opened on the first partition at a position corresponding to the position of the diverter trough. The first diverter hole is located above the second water collecting trough, so that the diverter trough and the second water collecting trough are fluidically connected. Therefore, the air temperature on the side of the first partition that is not in contact with the condenser is lower, and the water in the diverter trough can be dissipated. The temperature of the water in the diverter trough is lower when it enters the lower water collecting trough.

[0016] According to another aspect of the present invention, the diverter trough is located above the first water collecting trough, and the diverter trough and the first water collecting trough are separated by a second partition plate, the second partition plate constitutes the bottom of the diverter trough, and a second diverter hole is opened on the second partition plate to connect the diverter trough with the first water collecting trough fluid.

[0017] Furthermore, an impeller driven to rotate by the water flowing down through the second diversion hole and fan blades linked to the impeller are arranged below the second partition plate, thereby realizing non-powered heat dissipation.

[0018] Preferably, in order to facilitate the water flow to drive the impeller to rotate, the second diversion hole is offset relative to the impeller.

[0019] Preferably, in order to form more diversions after the water flows through the diversion groove and increase the contact heat dissipation area, there are at least two second diversion holes, which are arranged at intervals in a direction parallel to the impeller axis, and the aperture of the second diversion holes is 3 to 5 mm.

[0020] Furthermore, the compressor and the condenser are connected via a first pipeline, the compressor and the evaporator and the evaporator and the condenser are connected via a second pipeline, the first pipeline and the second pipeline constitute a refrigerant passage, and part of the first pipeline is placed in the first water collecting tank. Thus, the high-temperature gas coming out of the compressor exhaust pipe is pre-cooled under the action of the condensed water, thereby improving the heat dissipation effect of the condenser.

[0021] The technical solution adopted by the present invention to solve the above second technical problem is: a refrigeration range hood, including a range hood assembly, characterized in that it also includes the refrigeration assembly as described above.

[0022] Compared with the prior art, the advantages of the present invention are: by allowing the condensed water to circulate, the condensed water is effectively utilized, and the limitation of the condensed water volume caused by the water collection tank is avoided, thereby providing long-term heat dissipation for the condenser and improving the refrigeration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of a range hood according to a first embodiment of the present invention;

[0024] Figure 2 It is a schematic diagram of the exploded structure of the range hood according to the first embodiment of the present invention;

[0025] Figure 3 It is a schematic diagram of the range hood of the first embodiment of the present invention, in which the range hood assembly and the refrigeration assembly respectively hide part of the housing;

[0026] Figure 4 It is a cross-sectional view (front-to-back cross-section) of a refrigeration assembly of a range hood according to a first embodiment of the present invention;

[0027] Figure 5 A cross-sectional view of a refrigeration assembly of a range hood according to a first embodiment of the present invention (section and Figure 4 parallel);

[0028] Figure 6 It is a cross-sectional view (left-right cross-sectional view) of a refrigeration assembly of a range hood according to a first embodiment of the present invention;

[0029] Figure 7 A cross-sectional view of a refrigeration assembly of a range hood according to a first embodiment of the present invention (section and Figure 6 parallel);

[0030] Figure 8 A cross-sectional view of a condenser of a refrigeration assembly of a range hood according to a first embodiment of the present invention;

[0031] Fig. 9 It is a cross-sectional view of a refrigeration assembly according to a second embodiment of the present invention (a left-right cross-sectional view, viewed from the back to the front);

[0032] Fig.10 It is a cross-sectional view (left-right cross-section, viewed from front to back) of a refrigeration assembly according to a second embodiment of the present invention;

[0033] Fig.11 is a cross-sectional view of a refrigeration assembly according to a second embodiment of the present invention (front-to-back cross-section, viewed from right to left);

[0034] Fig.12 is a cross-sectional view of a refrigeration assembly according to a second embodiment of the present invention (front-to-back cross-section, viewed from left to right);

[0035] Fig.13 A cross-sectional view of a refrigeration assembly according to a second embodiment of the present invention (front-to-back cross-section, with Figure 6 parallel, looking from right to left);

[0036] Fig.14 for Fig.13 A partial enlarged schematic diagram of Ⅰ;

[0037] Fig.15 FIG. 1 is a schematic diagram of an impeller and fan blades of a refrigeration assembly according to a second embodiment of the present invention. DETAILED DESCRIPTION

[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions.

[0039] In the description of the present invention, 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 invention 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 invention 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.

[0040] Embodiment 1

[0041] See also Figures 1 to 8 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.

[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.

[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 condenser 24 is in the shape of a hollow pipe, preferably a cylindrical shape. In the oil fume flow path, the condenser 24 is arranged downstream of the fan 12 and is arranged longitudinally, with openings at both ends, and the lower end can be connected to the air outlet of the fan 12 through the air outlet cover 13. When the refrigeration component is working, the fan 12 of the oil fume suction component is started, and the air flow continuously passes through the inside of the condenser 24, thereby bringing heat to the condenser 24.

[0045] The working principle of the refrigeration component is the same as the prior art. The compressor 22 and the condenser 24 are connected by a first pipe 261, and the compressor 22 and the evaporator 23, and the evaporator 23 and the condenser 24 are connected by a second pipe 262, so that the refrigerant can flow in a circulation path formed between the compressor 22, the condenser 24 and the evaporator 23.

[0046] Since the evaporator 23 is located close to the cold air outlet 211 at the top, the evaporator 23 is located at a relatively high position. In order to collect and utilize the condensed water flowing down from the evaporator 23, the refrigeration assembly further includes a condensed water collection device, including an upper water collecting tank 271 disposed below the evaporator 23, a first water collecting tank 272 disposed at the bottom of the second shell 21, and a second water collecting tank 273 disposed at the bottom of the second shell 21. The first water collecting tank 272 and the second water collecting tank 273 are lower water collecting tanks. Each water collecting tank is an integral structure with the second shell 21.

[0047] A first partition 215 is provided in the second housing 21. The upper water collecting tank 271 and the first water collecting tank 272 are located at the rear side of the first partition 215, and the second water collecting tank 273 is located at the front side of the first partition 215. A flow guide 274 may be provided at the upper water collecting tank 271, one end of which extends into the upper water collecting tank 271, preferably located at the bottom of the upper water collecting tank 271, and the other end of the flow guide 274 is located above the first water collecting tank 272. A notch 2151 is provided at the bottom of the first partition 215 at a position corresponding to the first water collecting tank 272 and the second water collecting tank 273, so that the first water collecting tank 272 and the second water collecting tank 273 are in fluid communication.

[0048] As a result, the condensed water generated by the evaporator 23 falls into the upper water collecting tank 271 under the action of gravity, and the condensed water is drained to the first water collecting tank 272 through the guide pipe 274. The above-mentioned first pipeline 261 is partially placed in the second water collecting tank 273, and the part placed in the second water collecting tank 273 is preferably U-shaped. The high-temperature gas coming out of the exhaust pipe of the compressor 22 is pre-cooled under the action of the condensed water, so that there is continuous condensed water in the second water collecting tank 273 to pre-cool the refrigerant in the first pipeline 261.

[0049] The condenser 24 includes a hollow pipe-shaped body 241 and a shell 243 covering the body 241. An interlayer 244 is formed between the body 241 and the shell 243. The oil smoke passes through the space enclosed by the body 241. A refrigerant channel 242 for the refrigerant to pass through is formed inside the pipe wall of the body 241. The condenser 24 also includes an inlet pipe 245 and an outlet pipe 246. The inlet pipe 245 is connected to the top of the interlayer 244, and the outlet pipe 246 is connected to the bottom of the interlayer 244. The inlet pipe 245 and the outlet pipe 246 are both in fluid communication with the interlayer 244.

[0050] The condensed water collection device further includes a diverter trough 275 disposed adjacent to the second water collecting trough 273 and a water pump 276 for pumping the condensed water in the second water collecting trough 273 into the interlayer 244 of the condenser 24 to cool the condenser 24. The water inlet pipe 245 is connected to the water pump 276, and the water outlet pipe 246 is connected to the diverter trough 275. The diverter trough 275 and the condenser 24 are located on the same side of the first partition 215, and the diverter trough 275 and the second water collecting trough 273 are located on opposite sides of the first partition 215, respectively.

[0051] A first diversion hole 2152 is provided on the first partition plate 215 at a position corresponding to the diversion groove 275, and the first diversion hole 2152 is located above the second water collecting groove 273. This facilitates heat exchange between the hot water after heat exchange from the interlayer 244 of the condenser 24 and the air on the other side of the first partition plate 215 (the air on this side has a relatively low temperature because it does not contact the condenser), and the cooled hot water flows into the second water collecting groove 273 and is combined with the condensed water from the evaporator 23 to achieve secondary cooling, and the water after secondary cooling is circulated by the water pump 276.

[0052] The bottom of the second water collecting tank 273 is provided with a water level limiting hole 2732, which is a through hole, and the lower end can be directly connected to the oil cup (not shown) of the oil fume suction assembly through a hose connection. After the refrigeration assembly is turned on and running, the condensed water generated by the evaporator 23 is continuously collected in the second water collecting tank 273. The water storage capacity of the second water collecting tank 273 is sufficient to meet the water consumption required for water cooling of the condenser 24. The excess water flows into the oil cup through the hose after it exceeds the limiting hole 2732.

[0053] Embodiment 2

[0054] See also Figures 9 to 15 In this embodiment, the difference from the above-mentioned embodiment 1 is that the diverter 275 is located above the first water collecting trough 272 and the length thereof may be smaller than the first water collecting trough 272. The first water collecting trough 272 and the diverter 275 are separated by a second partition plate 278.

[0055] The second partition 278 constitutes the bottom of the diverter trough 275, and is provided with a second diverter hole 2781. A coaxial impeller 291 and a fan blade 292 are provided below the second partition 278. The axial direction of the impeller 291 is consistent with the length direction of the first water collecting trough 272, which is the left-right direction in this embodiment. There can be at least two second diverter holes 2781, which are arranged in a spaced manner along a direction parallel to the axis of the impeller 291, and do not coincide with the axis of the impeller 291, but are offset relative to the impeller 291, and the aperture is greater than or equal to the water droplet size, preferably 3 to 5 mm. This type of diverter hole in the form of a microchannel can divert water into thin water columns, which are more in contact with the air for heat dissipation. Instead of overlapping with the impeller 291, when water drips downward onto the impeller 291 through the second diversion hole 2781, the gravity of the water can be used to drive the impeller 291 to rotate, thereby driving the coaxial fan blades 292 to work together to dissipate the heat and cool the water flowing out of the second diversion hole 2781, thereby achieving unpowered cooling.

[0056] The "fluid connection" 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 respectively), 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 assembly, comprising a compressor (22), an evaporator (23) and a condenser (24), characterized in that: The condenser (24) comprises a main body (241) and a shell (243) arranged outside the main body (241), and an interlayer (244) is formed between the main body (241) and the shell (243); The refrigeration assembly also includes: A lower water collecting tank for collecting condensed water generated by the evaporator (23); and The water pump (276) pumps the condensed water in the lower water collection tank into the interlayer (244) to cool the condenser (24). The interlayer (244) is fluidically connected to the lower water collection tank via the water outlet pipe (246).

2. The refrigeration assembly according to claim 1, characterized in that: The refrigeration assembly further comprises a diverter trough (275), the interlayer (244) is connected to the diverter trough (275) via a water outlet pipe (246), and the diverter trough (275) is in fluid communication with the lower water collecting trough.

3. The refrigeration assembly according to claim 2, characterized in that: The lower water collection tank comprises a first water collection tank (272) disposed below the evaporator (23) and receiving condensed water, and a second water collection tank (273) arranged in parallel with the first water collection tank (272), wherein the first water collection tank (272) and the second water collection tank (273) are fluidically connected.

4. The refrigeration assembly according to claim 3, characterized in that: The refrigeration assembly also includes a first partition (215), the first water collecting trough (272) and the second water collecting trough (273) are respectively located on two opposite sides of the first partition (215), and a notch (2151) is provided at a position corresponding to the first water collecting trough (272) and the second water collecting trough (273) at the bottom of the first partition (215), thereby allowing fluid communication between the first water collecting trough (272) and the second water collecting trough (273).

5. The refrigeration assembly according to claim 4, characterized in that: The diverter trough (275), the condenser (24) and the first water collecting trough (272) are located on the same side of the first partition plate (215). A first diverter hole (2152) is provided on the first partition plate (215) at a position corresponding to the position of the diverter trough (275). The first diverter hole (2152) is located above the second water collecting trough (273), so that the diverter trough (275) is fluidically connected to the second water collecting trough (273).

6. The refrigeration assembly according to claim 4, characterized in that: The diverter trough (275) is located above the first water collecting trough (272). The diverter trough (275) and the first water collecting trough (272) are separated by a second partition plate (278). The second partition plate (278) constitutes the bottom of the diverter trough (275). The second partition plate (278) is provided with a second diverter hole (2781) so that the diverter trough (275) and the first water collecting trough (272) are fluidically connected.

7. The refrigeration assembly according to claim 6, characterized in that: An impeller (291) driven to rotate by water flowing down through the second diversion hole (2781) and a fan blade (292) linked to the impeller (291) are arranged below the second partition plate (278).

8. The refrigeration assembly according to claim 7, characterized in that: The second diverter hole (2781) is offset relative to the impeller (291).

9. The refrigeration assembly according to claim 7, characterized in that: There are at least two second flow-dividing holes (2781), which are arranged at intervals along a direction parallel to the axis of the impeller (291), and the aperture of the second flow-dividing holes (2781) is 3 to 5 mm.

10. The refrigeration assembly according to claim 3, characterized in that: The compressor (22) and the condenser (24) are connected via a first pipeline (261), and the compressor (22) and the evaporator (23) as well as the evaporator (23) and the condenser (24) are connected via a second pipeline (262). The first pipeline (261) and the second pipeline (262) constitute a refrigerant passage, and a portion of the first pipeline (261) is placed in a first water collecting tank (272).

11. A refrigeration range hood, comprising a range hood assembly, characterized in that: It also includes a refrigeration assembly as claimed in any one of claims 1 to 10.

Images