CN107044664B

CN107044664B - Range hood and control method thereof

Info

Publication number: CN107044664B
Application number: CN201610083228.0A
Authority: CN
Inventors: 连园园; 文旷瑜; 寇晖; 刘明; 赖瑜; 覃平想; 许宁; 萧志根; 李功瑞
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2016-02-05
Filing date: 2016-02-05
Publication date: 2020-07-14
Anticipated expiration: 2036-02-05
Also published as: CN107044664A

Abstract

The invention provides a range hood and a control method thereof, wherein the range hood comprises a range hood body; the exhaust part is arranged on the range hood body and is provided with an exhaust cavity; the refrigeration portion is arranged in the exhaust portion and is arranged in a mode of being separated from the exhaust cavity, and the refrigeration portion is located above the range hood body. Set up the refrigeration portion in exhaust portion and be located the top of lampblack absorber body, the effectual new trend area that advances that increases this lampblack absorber has improved the heat transfer effect of lampblack absorber.

Description

Range hood and control method thereof

Technical Field

The invention relates to the technical field of oil fume extraction equipment, in particular to a range hood and a control method thereof.

Background

The range hood in the prior art has a complex structure, high production cost and unsatisfactory oil smoke extraction effect. Specifically, the area of the return air inlet of the range hood in the prior art is narrow, so that the return air area of the range hood is limited, and the effect of oil smoke extraction is influenced. In the prior art, a cold air outlet for providing cold air indoors is arranged on the evaporator side, and a cold air outlet is arranged on the lower edge of the front side of the range hood, so that the distance from a kitchen worker is unreasonable, and the feeling of poor comfort is easily brought to a human body.

Besides, the range hood in the prior art still has the problems that the heat exchanger heat exchange effect is poor, the oil smoke discharging system pollutes the condenser seriously, and the use effect and the service life of the condenser are influenced.

Disclosure of Invention

The invention mainly aims to provide a range hood and a control method thereof, and aims to solve the problem that the return air area of the range hood in the prior art is small.

In order to achieve the above object, according to one aspect of the present invention, there is provided a range hood including: a range hood body; the exhaust part is arranged on the range hood body and is provided with an exhaust cavity; the refrigeration portion is arranged in the exhaust portion and is arranged in a mode of being separated from the exhaust cavity, and the refrigeration portion is located above the range hood body.

Further, the refrigeration portion is arranged at the top of the exhaust portion, an air inlet is formed in the top of the exhaust portion, and the air inlet is communicated with the exhaust cavity and the refrigeration portion respectively.

Furthermore, the refrigeration portion is provided with a refrigeration cavity, the refrigeration cavity and the exhaust cavity are arranged in a separated mode, and the refrigeration cavity is provided with an air outlet facing indoor air outlet.

Further, the air outlet is arranged on the side wall close to the bottom of the refrigeration cavity.

Further, the refrigerating portion includes: the isolating part is respectively connected with the top of the exhaust part and part of the side wall of the exhaust part, and a refrigerating cavity of the refrigerating part is formed between the isolating part and the top and part of the side wall.

Furthermore, the refrigeration portion still includes the aviation baffle, and the aviation baffle movably sets up in air outlet department.

Further, the lampblack absorber still includes: the air return part is communicated with the exhaust part, and the cross sectional area of the air return part is smaller than that of the air inlet.

Further, the air return part is arranged on the top of the exhaust cavity.

Furthermore, the air return part is communicated with a part of air inlets of the refrigerating part to form a fresh air inlet.

Further, the lampblack absorber still includes: and the air valve is arranged on the exhaust part and is used for opening and closing the air inlet.

Further, the refrigeration portion still includes: the cover plate is arranged on the top of the refrigerating portion and used for opening and closing the fresh air inlet.

Further, be provided with the baffle in the return air portion, the baffle is located between the refrigeration chamber of exhaust chamber and refrigeration portion to cut apart into first return air chamber and second return air chamber with return air portion, first return air chamber is linked together with the exhaust chamber, and second return air chamber is linked together with the refrigeration chamber.

Further, the return air portion includes: the fresh air pipe is arranged on the air return part and communicated with the air return part, and a second temperature sensor used for detecting the outdoor temperature is arranged at an air inlet of the fresh air pipe.

Further, a first temperature sensor for detecting the indoor temperature is arranged at the top of the refrigerating cavity of the refrigerating portion.

Further, the refrigeration portion still includes: the evaporator is arranged in the refrigerating cavity of the refrigerating part and is close to the fresh air inlet; the first fan assembly is arranged in the refrigerating cavity and located below the evaporator, and the first fan assembly blows cold air in the refrigerating cavity to the indoor space through an air outlet formed in the refrigerating cavity.

Further, the exhaust portion further includes: the condenser is arranged in the exhaust cavity close to the air inlet.

Further, the exhaust portion further includes: the second fan assembly is arranged in the exhaust cavity and located below the condenser, and the second fan assembly exhausts the gas in the exhaust cavity outdoors through an exhaust port formed in the side wall of the exhaust cavity.

Further, the lampblack absorber still includes slide damper, and slide damper movably sets up between second fan subassembly and condenser.

Further, the lampblack absorber still includes: and the compressor is arranged below the refrigerating part.

According to another aspect of the present invention, there is provided a range hood control method including: respectively reading an initial value a of a first temperature sensor arranged on a range hood in centigrade and an initial value b of a second temperature sensor arranged on the range hood in centigrade, wherein the range hood is the range hood, and when the range hood starts an air-conditioning refrigeration function, a controller detects the values of a and b,

when a is more than or equal to b, the air valve of the refrigerating part is opened to communicate the refrigerating cavity of the refrigerating part with the fresh air pipe, or,

when a is less than or equal to b-2, opening a cover plate arranged on the top of the refrigerating part to open an indoor air return inlet on the top of the refrigerating cavity, and communicating the refrigerating cavity with the indoor space to return air indoors, or,

when a is less than or equal to b-5, the air valve is in an intermittent opening or closing state so as to enable the refrigeration cavity to be communicated with the air return part and intermittently introduce fresh air into the refrigeration cavity, or,

the set value of the second temperature sensor is c, the unit is C, when a is less than or equal to c +1, the air valve is in an open state, and at the moment, the air return part is enabled to face the refrigerating cavity to intermittently introduce outdoor fresh air.

The technical scheme of the invention is applied to provide the range hood and the control method thereof. The exhaust portion sets up on lampblack absorber body, and the exhaust portion has the exhaust chamber. The refrigeration portion is arranged in the exhaust portion and is separated from the exhaust cavity and is arranged in a ground mode, and the refrigeration portion is located above the range hood body. Set up the refrigeration portion in exhaust portion and be located the top of lampblack absorber body, the effectual new trend area that advances that increases this lampblack absorber has improved the heat transfer effect of lampblack absorber.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic cross-sectional structure of an embodiment of a range hood according to the present invention; and

fig. 2 shows a schematic perspective view of an embodiment of a range hood according to the present invention in a use state.

Wherein the figures include the following reference numerals:

10. a range hood body; 20. an exhaust section; 21. an exhaust chamber; 22. an air inlet; 23. an exhaust port; 30. a refrigerating section; 31. an isolation section; 32. a refrigeration cavity; 33. an air outlet; 34. an air deflector; 35. an air valve; 36. an evaporator; 37. a fresh air inlet; 40. an air return section; 41. a fresh air duct; 42. a partition plate; 50. a condenser; 60. a compressor.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 and 2, according to an embodiment of the present invention, there is provided a range hood including a range hood body 10, an exhaust part 20, and a refrigerating part 30. The exhaust part 20 is arranged on the range hood body 10, and the exhaust part 20 is provided with an exhaust cavity 21. The refrigerating portion 30 is disposed in the exhaust portion 20 and spaced apart from the exhaust cavity 21, and the refrigerating portion 30 is located above the range hood body 10. Specifically, the refrigerating unit 30 is disposed on the top of the exhaust unit 20, and the top of the exhaust unit is provided with an air inlet 22, and the air inlet 22 is respectively communicated with the exhaust cavity 21 and the refrigerating unit 30. The arrangement can realize that the exhaust cavity 21 and the refrigerating part 30 enter air from the top.

In this embodiment, set up refrigeration portion 30 in exhaust portion 20 and be located the upper portion of lampblack absorber body 10, the effectual air inlet area that increases this lampblack absorber refrigeration portion 30 has improved refrigeration portion 30's heat transfer effect to improve air conditioning performance. In addition, set up refrigeration portion 30 in the top of lampblack absorber body 10, be about to that refrigeration portion 30 keeps away from lampblack absorber body 10 and sets up, has avoided the oil smoke that produces to the influence of refrigeration cold wind air current cooking process to influence the refrigeration effect of refrigeration portion 30.

Because refrigeration portion 30 sets up the top position at lampblack absorber exhaust cavity 21 for the position obtains improving about the cold wind export, makes cold wind air-out air current more reasonable, has improved user's comfort, makes indoor cooling quicker.

The refrigerating unit 30 has a refrigerating chamber 32, the refrigerating chamber 32 is separated from the exhaust chamber 21, and the refrigerating chamber 32 has an air outlet 33 for discharging air indoors. The arrangement can prevent oil smoke or hot air in the exhaust cavity 21 from entering the refrigeration cavity 32 in the use process so as to influence the refrigeration effect of the refrigeration cavity 32.

Preferably, the air outlet 33 is provided on a side wall close to the bottom of the refrigeration cavity 32. In the process of giving a kitchen operation to the person, except can producing the oil smoke, indoor temperature can corresponding increase, blows cold wind through the air outlet 33 of refrigeration chamber 32 towards indoor, can effectual reduction indoor temperature, has increased the travelling comfort that gives a kitchen to the person and feels.

As shown in fig. 1, the cooling part 30 includes a partition 31. The partition 31 is connected to a ceiling of the exhaust part 20 and a portion of a sidewall of the exhaust part 20, respectively, and a refrigerating chamber 32 of the refrigerating part 30 is formed between the partition 31 and the ceiling and the portion of the sidewall. This is provided to further prevent the gas in the exhaust part 20 from entering the cooling part 30. The isolation portion 31 may be made of a material having a heat insulating function.

Further, the cooling portion 30 further includes an air deflector 34, and the air deflector 34 is movably disposed at the air outlet 33. The arrangement of the air deflector 34 can adjust the wind direction of the cold air blown out from the air outlet 33 according to the actual operation condition of a kitchen operator, thereby effectively increasing the practicability of the range hood.

The range hood further includes a return air portion 40. The return portion 40 communicates with the exhaust portion 20, and the cross-sectional area of the return portion 40 is smaller than that of the intake port 22. The arrangement ingeniously reserves the arrangement position for the air return opening arranged at the top of the refrigerating part 30, and the practicability of the range hood is further improved.

As shown in fig. 1, the air return portion 40 is disposed on the top of the whole exhaust chamber 21, and the air return portion 40 is disposed on a part of the top of the cooling portion 30, that is, the air return portion 40 is communicated with a part of the air inlets 22 of the cooling portion 30, so as to form the fresh air inlets 37. The arrangement enables the exhaust cavity 21 and the refrigeration cavity 32 to share the same air return part 40 to realize fresh air intake. Wherein the air inlet 22 at the top of the refrigeration cavity 32, which is not covered by the return air section 40, forms an indoor return air opening of the refrigeration cavity 32.

Further, the cooling portion 30 further includes an air valve 35. The air valve 35 is provided on the top of the cooling part 30 and serves to open and close the air inlet 22 of the cooling part 30, and the air valve 35 is located below the return air part 40. Set up like this and can effectually realize the intercommunication of return air portion 40 and refrigeration portion 30, increased the refrigerated reliability of lampblack absorber. It should be noted that the air inlet 22 of the refrigeration unit 30 is a part of the air inlet 22, and the part of the air inlet forms the fresh air inlet 37 of the refrigeration unit 30.

In other embodiments, the air valve 35 may also be disposed in the fresh air duct 41.

In order to be able to better control the return air effect of the cooling part 30, a cover plate is provided on the top of the cooling part 30, wherein the cover plate is used to open and close the indoor environment return air inlet of the cooling part 30, and the cover plate is located outside the return air part 40. The air return opening is a cover plate arranged on part of the air inlet 22, when the refrigeration part 30 is in use, the cover plate is in an open state, and when the refrigeration part 30 is not in use, the cover plate is in a closed state, so that oil smoke is prevented from entering the refrigeration part 30.

Preferably, a partition plate 42 and a fresh air duct 41 are provided in the return air portion 40. The partition plate 42 is located between the discharge chamber 21 and the refrigerating chamber 32 of the refrigerating portion 30. The partition plate 42 partitions the inner chamber of the return air portion 40 into a first return air chamber communicating with the exhaust chamber 21 and a second return air chamber communicating with the cooling portion 30. The first air return cavity and the second air return cavity can be communicated above the partition plate 42, namely close to the air inlet of the fresh air pipe 41, and fresh air can be fed through an independent fresh air pipe. Set up like this and can effectually avoid the oil smoke that leaves over in the first return air intracavity to enter into refrigeration chamber 32 in, in addition, make things convenient for two cavities to the independent control of two parts new trend respectively. The fresh air duct 41 is disposed on the return air portion 40 and is communicated with the return air portion 40, and a second temperature sensor for detecting an outdoor temperature is disposed at an air inlet of the fresh air duct 41. The range hood can be timely controlled through the external environment.

The fresh air pipe 41 is communicated with the condensing side, namely a return air inlet in the exhaust cavity 21 where the condenser 50 is located, through a pipe connector by introducing fresh air from the outside, and is communicated with the evaporating side, namely a fresh air return inlet of the refrigerating part, the evaporating side fresh air return inlet is provided with an air valve 35, and the air valve 35 is opened or closed according to use requirements. The refrigerating portion 30 further includes an indoor air return opening, and the fresh air return opening and the indoor air return opening together constitute an evaporation side air return opening. The condensing side is subjected to heat exchange by adopting outdoor fresh air, and heat exchange is carried out by utilizing outdoor low-temperature air, so that the condensing effect is improved. Meanwhile, the air cooling condenser is prevented from being extracted from the indoor environment, the loss of indoor cold quantity is reduced, and the comfort and the air conditioning performance of the indoor environment are improved. The evaporation side air return port comprises a fresh air return port and an indoor air return port, fresh air can be introduced from the outside, the indoor air quality is adjusted, and the heat exchange effect of the condenser 50 and the comfort of the indoor environment are improved

Further, a first temperature sensor for detecting an indoor temperature is provided at a top of the cooling chamber 32 of the cooling part 30. The range hood can be better controlled timely through indoor and outdoor ambient temperature conditions.

In the present embodiment, the cooling portion 30 further includes an evaporator 36 and a first fan assembly. The evaporator 36 is disposed in the cooling chamber 32 of the cooling portion 30 and near the fresh air inlet 37. The first fan assembly is arranged in the refrigeration cavity 32 and located below the evaporator 36, and blows cold air in the refrigeration cavity 32 to the indoor through an air outlet 33 arranged on the refrigeration cavity 32.

The exhaust section 20 also includes a condenser 50 and a second fan assembly. The condenser 50 is disposed in the exhaust chamber 21 near the intake port 22. The second fan assembly is disposed in the exhaust chamber 21 and below the condenser 50, and discharges the gas in the exhaust chamber 21 to the outside through the exhaust port 23 formed in the sidewall of the exhaust chamber 21.

A sliding baffle is arranged between the condenser 50 and the second fan assembly, when a refrigerating part with an air conditioning function is not used, the sliding baffle is controlled to be closed, the condenser 50 is isolated from the second fan assembly, and oil smoke is prevented from entering the condenser 50 to pollute the condenser.

The air inlet 22 above the exhaust cavity 21 and the air inlet 22 below the air return portion 40 are respectively provided with an air valve 35.

As shown in fig. 2, the range hood having a refrigerating function has an exhaust chamber 21, a cold air chamber and a compressor chamber are provided at a side of the exhaust chamber 21 close to a user, and a compressor 60 is provided below a refrigerating chamber 32 of a refrigerating unit 30, thereby facilitating maintenance of the compressor 60. Of course, the compressor chamber can also be arranged on the side facing the wall. The top of the exhaust cavity 21 is provided with an air return inlet, the inside of the exhaust cavity is provided with a condenser 50 at a position corresponding to the air return inlet, and the inside of the refrigeration cavity 32 is provided with an evaporator 36 at a position corresponding to the air return inlet. The venting chamber 21 is separated from the refrigeration chamber 32 by a heat shield. By arranging the condenser 50 and the evaporator 36 at positions close to the top of the exhaust cavity, air is introduced from the top, so that the air inlet area is increased, and the heat exchange effect of the heat exchanger is improved.

According to another embodiment of the present invention, there is provided a range hood control method including:

respectively reading an initial value a of a first temperature sensor and an initial value b of a second temperature sensor which are arranged on the range hood, wherein the unit of the values a and b is centigrade. The lampblack absorber is above-mentioned lampblack absorber, controls the lampblack absorber through following several kinds of control mode respectively, and this lampblack absorber is the lampblack absorber in above-mentioned embodiment, wherein: the first temperature sensor is disposed at the air inlet 22, which is the return air inlet of the refrigerating portion, and the second temperature sensor is disposed at the air inlet of the fresh air duct 41. When the range hood starts the air-conditioning refrigeration function, the controller detects the values of a and b:

when a is larger than or equal to b, the air valve 35 is opened to enable the refrigerating cavity 32 of the refrigerating part 30 to be communicated with the fresh air pipe 41. The control valve of the fresh air return port at the evaporation side is opened, outdoor fresh air is introduced, and the fresh air is refrigerated and then blown into the room.

And when a is less than or equal to b-2, opening a cover plate arranged on the top of the refrigerating part 30 to open an indoor air return opening at the top of the refrigerating cavity 32, and communicating the refrigerating cavity 32 with the indoor space to return air indoors.

When a is less than or equal to b-5, the air valve 35 arranged at the air inlet 22 at the top of the refrigeration cavity 32 is in an intermittent opening or closing state, so that the refrigeration cavity 32 is communicated with the air return part 40, and fresh air is intermittently introduced.

Or the set value of the second temperature sensor is c, the unit is centigrade, when a is less than or equal to c +1, the air valve 35 is in the open state, and at this time, the air returning part 40 leads outdoor fresh air towards the inside of the refrigeration cavity 32 intermittently.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

1. through reasonable structure of the range hood, the return air area of the range hood and the heat exchange effect of the heat exchanger are improved.

2. Through the reasonable design of the air duct cavity, the pollution of the oil smoke to the condenser is reduced, and the service life of the condenser is prolonged.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A range hood, comprising:

a range hood body (10);

the exhaust part (20) is arranged on the range hood body (10), and the exhaust part (20) is provided with an exhaust cavity (21);

the refrigerating part (30) is arranged in the exhaust part (20) and is separated from the exhaust cavity (21), and the refrigerating part (30) is positioned above the range hood body (10);

the refrigeration part (30) is arranged at the top of the exhaust part (20), an air inlet (22) is formed in the top, and the air inlet (22) is communicated with the exhaust cavity (21) and the refrigeration part (30) respectively;

a return air portion (40), the return air portion (40) communicating with the exhaust portion (20), the cross-sectional area of the return air portion (40) being smaller than the cross-sectional area of the intake port (22);

the air return part (40) is arranged on the top of the exhaust cavity (21);

a partition plate (42) is arranged in the air return part (40), the partition plate (42) is positioned between the exhaust cavity (21) and the refrigeration cavity (32) of the refrigeration part (30) so as to divide the air return part (40) into a first air return cavity and a second air return cavity, the first air return cavity is communicated with the exhaust cavity (21), and the second air return cavity is communicated with the refrigeration cavity (32);

the range hood includes:

the fresh air pipe (41), the fresh air pipe (41) is arranged on the air return part (40) and communicated with the air return part (40), and a second temperature sensor for detecting the outdoor temperature is arranged at an air inlet of the fresh air pipe (41);

a first temperature sensor for detecting the indoor temperature is arranged at the top of a refrigerating cavity (32) of the refrigerating part (30);

the exhaust unit (20) further includes:

a condenser (50), said condenser (50) being disposed within said exhaust chamber (21) proximate to said air inlet (22);

the range hood further includes:

a compressor (60), wherein the compressor (60) is arranged below the refrigerating part (30).

2. A hood fan according to claim 1, characterized in that said refrigeration part (30) has a refrigeration cavity (32), said refrigeration cavity (32) being arranged at a distance from said air exhaust cavity (21), said refrigeration cavity (32) having an air outlet (33) facing the indoor air outlet.

3. A hood as claimed in claim 2, characterized in that said outlet mouth (33) is provided on a side wall close to the bottom of said refrigeration chamber (32).

4. A hood as claimed in claim 2, characterized in that said refrigerating portion (30) comprises:

isolation portion (31), isolation portion (31) respectively with exhaust portion (20) the top with the partial lateral wall of exhaust portion (20) is connected, isolation portion (31) with the top with form between the partial lateral wall refrigeration chamber (32) of refrigeration portion (30).

5. A hood as claimed in claim 2, characterized in that said cooling portion (30) further comprises a deflector (34), said deflector (34) being movably arranged at said outlet opening (33).

6. A range hood as claimed in claim 1, characterized in that said return air portion (40) is in communication with part of said air inlet (22) of said refrigeration portion (30), forming a fresh air intake (37).

7. The range hood of claim 6, further comprising:

an air valve (35), the air valve (35) being provided on the exhaust portion (20) and opening and closing the air inlet (22).

8. A hood as claimed in claim 6, characterized in that said refrigeration portion (30) further comprises:

the cover plate is arranged on the top of the refrigerating portion (30) and used for opening and closing the fresh air inlet (37).

9. A hood as claimed in claim 6, characterized in that said refrigeration portion (30) further comprises:

the evaporator (36) is arranged in the refrigerating cavity (32) of the refrigerating part (30) and is close to the fresh air inlet (37);

the first fan assembly is arranged in the refrigeration cavity (32) and located below the evaporator (36), and blows cold air in the refrigeration cavity (32) to the indoor space through an air outlet (33) formed in the refrigeration cavity (32).

10. A hood according to claim 1, characterized in that said exhaust portion (20) further comprises:

the second fan assembly is arranged in the exhaust cavity (21) and located below the condenser (50), and the second fan assembly discharges gas in the exhaust cavity (21) to the outside through an exhaust port (23) formed in the side wall of the exhaust cavity (21).

11. A range hood according to claim 10, characterized in that it further comprises a sliding baffle movably arranged between said second fan assembly and said condenser (50).

12. A range hood control method is characterized by comprising the following steps:

respectively reading an initial value a of a first temperature sensor arranged on the range hood in centigrade and an initial value b of a second temperature sensor arranged on the range hood in centigrade, wherein the range hood is as claimed in any one of claims 1 to 11, and when the range hood starts an air-conditioning refrigeration function, the controller detects the values of a and b,

when a is more than or equal to b, opening an air valve (35) of the refrigerating part (30) to enable a refrigerating cavity (32) of the refrigerating part (30) to be communicated with a fresh air pipe (41), or,

when a is less than or equal to b-2, opening a cover plate arranged on the top of the refrigerating part (30) to open an indoor return air inlet on the top of the refrigerating cavity (32), and communicating the refrigerating cavity (32) with the indoor space to return air indoors, or,

when a is less than or equal to b-5, the air valve (35) is in an intermittent opening or closing state so as to enable the refrigeration cavity (32) to be communicated with the air return part (40), and the refrigeration cavity (32) intermittently introduces fresh air, or,

the set value of the second temperature sensor is c, the unit is C, when a is not more than c +1, the air valve (35) is in an open state, and at the moment, the air return part (40) is enabled to face the refrigerating cavity (32) and outdoor fresh air is intermittently introduced into the refrigerating cavity.