Refrigeration type range hood

Abstract

A refrigeration type extractor hood is characterized in that an oil smoke suction module, a compressor, a heat dissipation module and an inner machine module are installed in a machine shell, the oil smoke suction module comprises a fan frame and an oil smoke suction fan, the heat dissipation module comprises a condenser and a heat dissipation fan, the inner machine module comprises an evaporator and an inner machine fan, and a water receiving box is installed in the machine shell; condensate water in the water receiving box can be conveyed into the heat dissipation fan, a ventilation opening is formed in the volute annular wall of the oil smoke suction fan, and an air outlet of the heat dissipation fan is in fluid communication with the ventilation opening. When the refrigeration type range hood works, condensed water does not need to be discharged outwards, is heated and atomized after entering the heat dissipation fan, and enters the oil smoke suction fan through the ventilation opening in the volute annular wall of the oil smoke suction fan along with hot air blown out of the heat dissipation fan to clean the volute and the impeller, so that the heat dissipation effect is improved, and the service life of the oil smoke suction fan is prolonged. And the residual small water drops which are not atomized flow into the range hood fan, are scattered and atomized again by the impeller of the range hood fan, and are finally discharged along with the oil smoke.

Description

Technical Field

[0001] The utility model relates to a range hood, in particular to a refrigeration type range hood. Background Art

[0002] In order to solve the pain point of stuffy kitchens when cooking in summer, people have invented various refrigeration-type range hoods, which integrate air-conditioning components into range hood fans to achieve both range hood suction and refrigeration functions. During daily use of refrigeration range hoods currently on the market, a large amount of grease will remain on the volute and impeller. After a long period of air-drying and solidification, these grease will form a hard grease layer on the volute and impeller, which is very difficult to clean. The existing volute cleaning technology often uses a steam generator to heat water added to the steam generator from the outside to form high-temperature water vapor, which is then sprayed onto the volute and impeller for cleaning. Since it requires an additional water source from the outside to clean the range hood, it is more troublesome to use. For example, the Chinese utility model patent with patent number CN202220678174.3 (authorization announcement number CN 217271065U) discloses "A fan cleaning device and a range hood using the fan cleaning device", which discloses opening a hole in the volute ring wall, and spraying a cleaning liquid into the volute through the hole to clean the volute and the impeller. Although there are also range hoods in the prior art that use controlled condensed water to clean the volute, such as the "A Kind of Air-conditioning Range Hood" disclosed in the Chinese utility model patent with patent number 202220018984.6 (authorization announcement number CN 217004584 U), the range hood has a water collection box for collecting condensed water condensed on the surface of the evaporator, and a steam generator is installed inside the housing. The water collection box is connected to the water inlet of the steam generator through a water outlet pipe, and the steam outlet of the steam generator is connected to the air duct inside the range hood fan. After the air-conditioning condensed water is evaporated by the steam generator, it enters the range hood fan, and the high-temperature water vapor passes through the fan impeller to clean the impeller. Although the air-conditioning range hood uses air-conditioning condensed water to clean the fan impeller, it is necessary to use the steam generator inside the housing to heat the condensed water, which is not only complicated in structure, but also increases the cost, and the heat generated by the condenser when the air conditioner is working is not effectively utilized. In addition, the prior art also discloses a structure in which a liquid distributor is installed on the condenser, and the condensed water is transported to the liquid distributor to dissipate heat and cool the condenser. However, the liquid distributor is unstable due to the influence of the installation angle and the material. Sometimes the condensed water is unevenly distributed, resulting in poor heat exchange and evaporation with the condenser surface. Therefore, when the weather humidity is relatively high, it is difficult to process the water and it still needs to be discharged. In summary, the existing air-conditioning range hood needs to be further improved. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a refrigeration-type range hood which can utilize condensed water to effectively self-clean the range hood fan in view of the above-mentioned existing technical status.

[0004] The technical solution adopted by the utility model to solve the above-mentioned technical problems is: a refrigeration type range hood, comprising a casing, a fume suction module, a compressor, a heat dissipation module and an internal machine module are installed inside the casing, the fume suction module comprises a fan frame and a fume suction fan installed inside the fan frame, the heat dissipation module comprises a condenser and a heat dissipation fan, the internal machine module comprises an evaporator and an internal machine fan, the compressor, condenser and evaporator are connected through a refrigerant pipeline, and is characterized in that: a water receiving box for collecting condensed water condensed on the surface of the evaporator is installed in the casing, the condensed water in the water receiving box can be transported to the inside of the heat dissipation fan, a vent is opened on the volute ring wall of the range vent fan, and the air outlet of the heat dissipation fan is fluidly connected to the vent.

[0005] In order to smoothly transport the condensed water to the heat dissipation fan, a water pump and a water outlet pipe are also included. The water inlet end of the water outlet pipe is connected to the water outlet of the water pump, and the water outlet end of the water outlet pipe is connected to the interior of the heat dissipation fan. Under the action of the water pump, the condensed water in the water receiving box is transported to the interior of the heat dissipation fan through the water outlet pipe.

[0006] In order to allow the condensed water condensed on the surface of the evaporator to flow smoothly into the water receiving box, the water receiving box is arranged below the evaporator.

[0007] Further preferably, the evaporator is arranged tilted relative to the vertical plane, and the projection of the bottom of the evaporator in the vertical direction falls within the water receiving box.

[0008] In order to allow the hot air and atomized condensed water blown out by the heat dissipation fan to smoothly enter the range fumes suction fan, the heat dissipation fan is arranged above the range fumes suction fan. Both the heat dissipation fan and the range fumes suction fan are centrifugal fans. The air outlet of the heat dissipation fan faces downward and directly faces the vent.

[0009] Preferably, a wind guide plate is installed at the vent to guide the hot air blown by the heat dissipation fan into the volute. The wind guide plate is used to guide the wind of the heat dissipation fan into the volute of the range hood and prevent the wind in the volute of the range hood from overflowing through the vent on the annular wall.

[0010] Further preferably, the air guide plate guides the hot air blown out by the heat dissipation fan into the gap between the impeller of the range fumes suction fan and the volute ring wall.

[0011] In order to achieve a better wind guiding effect, a volute tongue is installed on the volute ring wall of the range fumes exhaust fan, and the wind guide plate is close to the root of the volute tongue.

[0012] The range fumes fan, compressor, heat dissipation module and internal unit module can have a variety of installation positions. Preferably, the casing includes an upper box body and a lower cavity arranged at the bottom of the upper box body. The range fumes fan, compressor, heat dissipation module and internal unit module are all arranged inside the upper box body, and the lower cavity is provided with a smoke inlet connected to the air inlet of the range fumes fan.

[0013] Further preferably, the compressor is arranged on the left or right side of the range fumes exhaust fan, the heat dissipation module is arranged above the range fumes exhaust fan, the internal unit module is arranged above the compressor, and the heat dissipation module is arranged adjacent to the internal unit module on the left and right.

[0014] Compared with the prior art, the advantages of the utility model are: a water collecting box for collecting condensed water condensed on the surface of the evaporator is installed in the casing of the refrigeration type range hood, the condensed water in the water collecting box can be transported to the inside of the heat dissipation fan, and a vent is opened on the volute ring wall of the range hood fan, and the air outlet of the heat dissipation fan is fluidly connected with the vent. During operation, the condensed water not only does not need to be discharged externally, but the condensed water is heated and atomized after entering the heat dissipation fan, and enters the interior of the range hood fan through the vent on the volute ring wall of the range hood fan along with the hot air blown out by the heat dissipation fan, to clean the volute and impeller, and the remaining unatomized small water droplets will flow into the range hood fan, be broken up and atomized again by the impeller of the range hood fan, and finally be discharged with the oil smoke. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a range hood according to an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of a range hood according to an embodiment of the utility model;

[0017] Figure 3 This is a connection diagram of an air conditioning component according to an embodiment of the utility model. DETAILED DESCRIPTION

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0019] like Figure 1 and Figure 2 As shown, the refrigeration type range hood of this embodiment includes a housing 1, inside which are mounted a range hood module 2, a compressor 3, a heat dissipation module 4 and an internal unit module 5, the range hood module 2 includes a fan frame 21 and a range hood fan 22 installed inside the fan frame 21, the heat dissipation module 4 includes a condenser 41 and a heat dissipation fan 42, and the internal unit module 5 includes an evaporator 51 and an internal unit fan 52. Figure 3As shown, the compressor 3, the condenser 41 and the evaporator 51 constitute an air conditioning component and are connected through the refrigerant pipeline 6. The specific working principle thereof can refer to the working principle of the existing air conditioner and will not be described in detail.

[0020] The housing 1 of this embodiment includes an upper box body 11 and a lower cavity body 12 disposed at the bottom of the upper box body 11. The range fumes fan 22, the compressor 3, the heat dissipation module 4 and the internal unit module 5 are all disposed inside the upper box body 11. The compressor 3 is disposed on the right side of the range fumes fan 22, the heat dissipation module 4 is disposed above the range fumes fan 22, the internal unit module 5 is disposed above the compressor 3, and the internal unit module 5 is disposed on the right side of the heat dissipation module 4. The lower cavity body 12 is provided with a smoke inlet 121 connected to the air inlet of the range fumes fan 22, and the lower cavity body 12 is also provided with an air conditioning outlet 122 connected to the air outlet of the internal unit fan 52.

[0021] The heat dissipation fan 42 and the range hood fan 22 of this embodiment are both centrifugal fans, and the heat dissipation fan 42 is arranged above the range hood fan 22. A vent 222 is provided on the volute ring wall 221 of the range hood fan 22, and the air outlet of the heat dissipation fan 42 faces downward and directly faces the vent 222, that is, the air outlet of the heat dissipation fan 42 is in fluid communication with the vent 222. An air guide plate 223 is installed at the vent 222, and the function of the air guide plate 223 is, on the one hand, to guide the wind of the heat dissipation fan 42 into the range hood volute, and on the other hand, to prevent the wind in the range hood volute from overflowing outward through the vent 222 on the volute ring wall 221. A gap 226 is formed between the impeller 224 of the range hood fan 22 and the volute ring wall 221, and the air guide plate 223 guides the hot air blown out by the heat dissipation fan 42 into the gap 226. In this embodiment, a volute tongue 225 is installed on the volute ring wall 221 of the range hood exhaust fan 22, and the vent 222 is located at the 1 / 4 position of the front section of the volute ring wall 221 as much as possible, and the closer to the volute tongue 225 the better, to ensure that the wind blown out by the heat dissipation fan 42 smoothly enters the range hood volute, and at the same time, when there is back pressure at the range hood outlet, the wind in the range hood volute will not overflow from the vent 222.

[0022] A water receiving box 7 is installed in the housing 1. The water receiving box 7 is arranged below the evaporator 51. The evaporator 51 is arranged tilted relative to the vertical plane. The projection of the bottom of the evaporator 51 in the vertical direction falls in the water receiving box 7. When working in the cooling mode, the condensed water condensed on the surface of the evaporator flows into the water receiving box 7. The water inlet end of the water outlet pipe 9 is connected to the water outlet of the water pump 8, and the water outlet end of the water outlet pipe 9 is connected to the inside of the heat dissipation fan 42. Under the action of the water pump 8, the condensed water in the water receiving box 7 is transported to the inside of the heat dissipation fan 42 through the water outlet pipe 9.

[0023] When the range hood is working in the cooling mode, the heat dissipation fan 42 dissipates heat to the condenser 41, and the hot air blown out by the heat dissipation fan 42 enters the interior of the range hood fan 22 through the vents 222 on the volute ring wall 221, heating the volute and the impeller 224. At the same time, the condensed water produced by the evaporator 51 flows into the water receiving box 7, and is pumped into the heat dissipation fan 42 by the water pump 8. The condensed water is first broken up and atomized by the impeller of the heat dissipation fan 42, and the atomized condensed water also cleans the impeller 224. The remaining small water droplets that have not been atomized will enter the range hood fan 22 through the vents 222, and be broken up and atomized again by the impeller 224 of the range hood fan 22, and finally discharged with the oil smoke.

[0024] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations 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.

[0025] The "fluid connection" referred to in the present invention refers to the spatial position relationship between two parts or parts, which are collectively referred to as the first part and the second part respectively below, that is, fluid gas, liquid or a mixture of the two can flow from the first part along the flow path and / or 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 type range hood, comprising a housing (1), wherein a range hood module (2), a compressor (3), a heat dissipation module (4) and an internal unit module (5) are installed inside the housing (1), wherein the range hood module (2) comprises a fan frame (21) and a range hood fan (22) installed inside the fan frame (21), the heat dissipation module (4) comprises a condenser (41) and a heat dissipation fan (42), the internal unit module (5) comprises an evaporator (51) and an internal unit fan (52), the compressor (3), the condenser (41) and the evaporator (51) are connected via a refrigerant pipeline (6), and characterized in that: A water receiving box (7) for collecting condensed water condensed on the surface of the evaporator (51) is installed in the casing (1); the condensed water in the water receiving box (7) can be transported to the interior of the heat dissipation fan (42); a vent (222) is provided on the volute ring wall (221) of the fume extraction fan (22); and the air outlet of the heat dissipation fan (42) is fluidically connected to the vent (222).

2. The refrigeration type range hood according to claim 1, characterized in that: It also includes a water pump (8) and a water outlet pipe (9), wherein the water inlet end of the water outlet pipe (9) is connected to the water outlet of the water pump (8), and the water outlet end of the water outlet pipe (9) is connected to the interior of the heat dissipation fan (42). Under the action of the water pump (8), condensed water in the water receiving box (7) is transported to the interior of the heat dissipation fan (42) through the water outlet pipe (9).

3. The refrigeration type range hood according to claim 1, characterized in that: The water receiving box (7) is arranged below the evaporator (51).

4. The refrigeration type range hood according to claim 3, characterized in that: The evaporator (51) is arranged obliquely relative to the vertical plane, and the projection of the bottom of the evaporator (51) in the vertical direction falls within the water receiving box (7).

5. The refrigeration type range hood according to claim 1, characterized in that: The heat dissipation fan (42) is arranged above the range fumes suction fan (22); the heat dissipation fan (42) and the range fumes suction fan (22) are both centrifugal fans; the air outlet of the heat dissipation fan (42) faces downward and directly faces the ventilation opening (222).

6. The refrigeration type range hood according to any one of claims 1 to 5, characterized in that: An air guide plate (223) is installed at the vent (222) for guiding hot air blown out by the heat dissipation fan (42) into the interior of the volute.

7. The refrigeration type range hood according to claim 6, characterized in that: The air guide plate (223) guides the hot air blown out by the heat dissipation fan (42) into the gap (226) between the impeller (224) of the range fumes suction fan (22) and the volute ring wall (221).

8. The refrigeration type range hood according to claim 6, characterized in that: A volute tongue (225) is installed on the volute ring wall (221) of the fume extraction fan (22), and the air guide plate (223) is close to the root of the volute tongue (225).

9. The refrigeration type range hood according to claim 1, characterized in that: The casing (1) comprises an upper box body (11) and a lower cavity body (12) arranged at the bottom of the upper box body (11); the fume extractor fan (22), the compressor (3), the heat dissipation module (4) and the internal unit module (5) are all arranged inside the upper box body (11); the lower cavity body (12) is provided with a fume inlet (121) connected to the air inlet of the fume extractor fan (22); the lower cavity body (12) is also provided with an air conditioning outlet (122) connected to the air outlet of the internal unit fan (52).

10. The refrigeration type range hood according to claim 9, characterized in that: The compressor (3) is arranged on the left or right side of the range fumes exhaust fan (22), the heat dissipation module (4) is arranged above the range fumes exhaust fan (22), the internal unit module (5) is arranged above the compressor (3), and the heat dissipation module (4) and the internal unit module (5) are arranged adjacent to each other on the left and right.

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