Air-conditioning type range hood and control method thereof

Abstract

An air-conditioned range hood and its control method include an air conditioning assembly and a range hood assembly. A condenser is disposed within a smoke exhaust passage, an evaporator is disposed within an air outlet passage, a water receiving box is disposed within the housing, a first condensed water treatment device is mounted within the smoke exhaust passage, a second condensed water treatment device is mounted within the air outlet passage, a first water pump is mounted in the waterway connecting the first water outlet of the water receiving box and the first condensed water treatment device, and a second water pump is mounted in the waterway connecting the second water outlet and the second condensed water treatment device. A float switch is mounted within the water receiving box, and a controller controls the first and second water pumps accordingly by receiving signals from the float switch. In this air-conditioned range hood, when the treatment device utilizes an atomizer, condensed water delivered to the air outlet passage is atomized and then discharged, providing humidification. Condensed water delivered to the smoke exhaust passage is atomized and then dissipates heat from the condenser, thereby improving air conditioning energy efficiency.

Description

Technical Field

[0001] The present invention relates to a range hood, and in particular to an air-conditioning type range hood and a control method thereof. Background Art

[0002] Currently, in order to provide cool air in the kitchen in the summer and warm air in the winter, people have invented various air-conditioning hoods, which integrate air conditioning components with range hoods. The range hood housing is provided with air conditioning outlets. The air-conditioning hood can operate in multiple different modes. As long as the air-conditioning mode is turned on, the air conditioning outlets will blow out cool or hot air, which can be blown directly towards the cook or into the kitchen, thereby improving the user's cooking experience. For example, the Chinese invention patent application No. 201710661756.4 (application publication No. CN 107300200 A) discloses a range hood with refrigeration and air conditioning, which includes an air inlet assembly, a main oil fume channel, a condenser, a radiator, a compressor, a spray device, an atomizing device, a steam generating device, a program control device, and a housing. The condenser and radiator are coated with a non-stick coating. The air intake assembly includes a two-stage fan and an oil fume filter. The condenser is mounted in the center of the main oil fume channel, with a sprayer and atomizer located above and below the condenser, respectively. The radiator and compressor are mounted outside the main oil fume channel. The compressor is mounted on a bracket on the kitchen wall via vibration isolators. The wall where the housing is mounted is equipped with a tap water outlet pipe and a wastewater return pipe. Although this range hood fully utilizes the kitchen's water supply and uses various methods to solve the problem of oil fume particles adhering to the condenser fins, it does not address the issue of how to effectively utilize and discharge the air conditioning condensate. Summary of the Invention

[0003] The first technical problem to be solved by the present invention is to provide an air-conditioning type range hood that can transport air-conditioning condensed water to the air outlet channel and the smoke exhaust channel for treatment and utilization in response to the above-mentioned existing technical status.

[0004] The second technical problem to be solved by the present invention is to provide a control method for an air-conditioning range hood that can utilize air-conditioning condensed water for humidification and improve air-conditioning energy efficiency in response to the above-mentioned existing technical status.

[0005] The technical solution adopted by the present invention to solve the first technical problem mentioned above is as follows: the air-conditioning type range hood includes an air conditioning component and a range hood component, the air conditioning component includes a compressor, a condenser and an evaporator, the compressor, condenser and evaporator are connected through a refrigerant pipeline, the range hood component includes a casing and a range hood fan installed inside the casing, the casing is provided with a mutually isolated exhaust channel and an air outlet channel, the condenser is provided in the exhaust channel, the evaporator is provided in the air outlet channel, and a connection port for collecting condensed water condensed on the surface of the evaporator is provided inside the casing. The water box is characterized in that: a first condensed water treatment device is installed in the smoke exhaust channel, a second condensed water treatment device is installed in the air outlet channel, the water receiving box has a first water outlet and a second water outlet, a first water pump is installed on the water channel connecting the first water outlet and the first condensed water treatment device, and a second water pump is installed on the water channel connecting the second water outlet and the second condensed water treatment device. A float switch is also installed in the water receiving box, and the range hood also includes a controller for correspondingly controlling the first water pump and the second water pump by receiving signals from the float switch.

[0006] Preferably, the first condensate treatment device is a first atomizer, and the second condensate treatment device is a second atomizer. In this way, the condensate is atomized and discharged by the first atomizer to achieve a humidification function, and the condensate is atomized by the second atomizer to dissipate heat from the condenser, thereby improving its heat exchange effect.

[0007] The first atomizer can be arranged at different positions in the smoke exhaust channel. Preferably, along the flow direction of the oil smoke, the first atomizer is arranged downstream of the condenser.

[0008] The second atomizer can be arranged at different positions in the air outlet channel. Preferably, along the air flow direction, the second atomizer is arranged upstream of the evaporator.

[0009] In order to enable the air outlet channel to discharge air smoothly, an air outlet fan is installed in the air outlet channel, and along the air flow direction, the air outlet fan is arranged downstream of the evaporator, and an air inlet and an air outlet of the air outlet duct are provided on the casing.

[0010] Further preferably, the exhaust passage includes a first exhaust passage and a second exhaust passage, and a switching valve is installed at the outlet of the range fume exhaust fan for switching one of the first exhaust passage and the second exhaust passage to communicate with the range fume exhaust fan outlet. The condenser is disposed within the first exhaust passage. In this way, the first exhaust passage constitutes a heat dissipation passage, and the second exhaust passage constitutes a direct exhaust passage. In different operating modes, the switching valve can be switched to allow the exhaust to be discharged from either the heat dissipation passage or the direct exhaust passage.

[0011] In order to prevent the oil smoke from contaminating the condenser, an oil smoke purification device is installed in the first smoke exhaust channel. Along the flow direction of the oil smoke, the oil smoke purification device is arranged upstream of the condenser.

[0012] The first smoke exhaust channel and the second smoke exhaust channel can have multiple smoke exhaust modes. Preferably, the first smoke exhaust channel has a first smoke exhaust port, and the second smoke exhaust channel has a second smoke exhaust port, and the first smoke exhaust port and the second smoke exhaust port are independent of each other.

[0013] In order to make the structure more compact and the installation more convenient, the compressor is installed inside the casing.

[0014] The technical solution adopted by the present invention to solve the second technical problem is: the control method of the air-conditioning type range hood is characterized by comprising the following steps:

[0015] S1, start;

[0016] S2, the first water pump and the second water pump are in the disconnected state;

[0017] S3, determining whether the air conditioner is turned on;

[0018] If yes, proceed to step S4;

[0019] If not, return to step S2;

[0020] S4, determine whether humidification is needed;

[0021] If yes, proceed to step S5;

[0022] If not, proceed to step S8;

[0023] S5, the second water pump works, and the second atomizer works;

[0024] S6, determine whether the float switch is activated;

[0025] If yes, the first water pump continues to operate for t seconds, and then proceeds to step S7;

[0026] If not, return to step S5;

[0027] S7, determine whether humidification is needed;

[0028] If yes, return to step S5;

[0029] If not, proceed to step S8;

[0030] S8, the first water pump keeps working;

[0031] S9, determining whether the air conditioning mode is off;

[0032] If yes, proceed to step S10;

[0033] If not, return to step S4;

[0034] S10, end.

[0035] More preferably, in step S6, the first water pump operates continuously for 30 to 120 seconds.

[0036] Compared with the prior art, the advantages of the present invention are that: the air-conditioned range hood is equipped with a first condensed water treatment device in the smoke exhaust channel, and a second condensed water treatment device is installed in the air outlet channel. Under the control of the controller, by controlling the operation of the first water pump and the second water pump, the air-conditioning condensed water can be transported to the first condensed water treatment device or the second condensed water treatment device for treatment as needed. When the treatment device adopts an atomizer, the condensed water transported to the air outlet channel can be atomized and discharged to play a humidifying role. The condensed water transported to the smoke exhaust channel can be atomized and dissipated to the condenser, thereby improving the heat exchange effect of the condenser and further improving the air conditioning energy efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a schematic structural diagram of an air-conditioning range hood according to an embodiment of the present invention;

[0038] Figure 2 A schematic diagram of the working principle of an air conditioning assembly according to an embodiment of the present invention;

[0039] Figure 3 for Figure 1 The logic control diagram of the control method of the air-conditioning type range hood shown. DETAILED DESCRIPTION

[0040] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0041] like Figure 1 and Figure 2 As shown, the air-conditioned range hood of this embodiment includes an air conditioning assembly and a range hood assembly. The air conditioning assembly includes a compressor 11, a condenser 12, and an evaporator 13. The compressor 11, condenser 12, and evaporator 13 are interconnected via a refrigerant pipeline 14. A throttling device 15 is installed on the refrigerant pipeline 14 between the condenser 12 and the evaporator 13. A refrigerant flows through the refrigerant pipeline 14. Common refrigerants include water, ethylene glycol, glycerol, etc. The specific operating principle of the air conditioning assembly is the same as that of conventional air conditioners and will not be described in detail here.

[0042] The range hood of this embodiment includes a housing 20, in which a range hood fan 21 is installed. The housing 20 is provided with a smoke exhaust channel 22 and an air outlet channel 23 which are isolated from each other. Figure 1The direction indicated by the middle arrow A is right, and the smoke exhaust channel 22 is located on the right side of the air outlet channel 23 . Moreover, along the flow direction of the oil smoke, the smoke exhaust channel 22 is located downstream of the air outlet of the oil smoke suction fan 21 .

[0043] The smoke exhaust channel 22 of this embodiment includes a first smoke exhaust channel 221 and a second smoke exhaust channel 222. A switching valve 25 is installed at the entrance of the first smoke exhaust channel 221 and the second smoke exhaust channel 222. The switching valve 25 is used to switch one of the first smoke exhaust channel 221 and the second smoke exhaust channel 222 to be connected to the air outlet of the range fumes exhaust fan 21. Figure 1 As shown, the switching valve 25 is deflected to the right. At this point, the first smoke exhaust channel 221 is open, while the second smoke exhaust channel 222 is closed. Fumes are discharged through the first smoke exhaust channel 221. To open the second smoke exhaust channel 222, the switching valve 25 is deflected to the left. Furthermore, in this embodiment, the first smoke exhaust channel 221 has a first smoke exhaust port 223, and the second smoke exhaust channel 222 has a second smoke exhaust port 224. The first and second smoke exhaust ports 223 and 224 are independent of each other.

[0044] In this embodiment, the condenser 12 and the oil fume purification device 26 are installed within the first exhaust duct 221. The oil fume purification device 26 is located upstream of the condenser 12 along the direction of oil fume flow, thereby preventing oil fume from contaminating the condenser 12. Typically, the oil fume purification device 26 can employ an electrostatic purification device known in the art, and its specific structure will not be described in detail. Furthermore, the condenser 12 can be arranged at an angle relative to the vertical plane or vertically. In this embodiment, the condenser 12 is tilted from top to bottom and toward the left.

[0045] The evaporator 13 and the outlet fan 24 are mounted within the outlet duct 23. The outlet fan 24 is positioned downstream of the evaporator 13 along the air flow direction. The housing 20 is provided with an air inlet 231 and an air outlet 232 for the outlet duct 23. Air flowing through the outlet fan 24 enters the outlet duct 23 through the air inlet 231, is cooled by the evaporator 13, and is blown out through the air outlet 232. In this embodiment, an air conditioner indoor unit is mounted within the housing 20, forming the outlet duct 23 within the indoor unit. The evaporator 13 and the outlet fan 24 are components of the indoor unit. The indoor unit fan 24 is typically a centrifugal fan, with the air inlet of the centrifugal fan facing the evaporator 13.

[0046] The compressor 11 is installed inside the casing 20, and the compressor 11 is located outside the smoke exhaust channel 22 and the air outlet channel 23. The specific installation position of the compressor 11 is a conventional structure. Figure 1 Not shown.

[0047] A water collection box 3 is installed within the housing 20, located below the indoor unit of the air conditioner. This box collects condensed water from the evaporator 13. A float switch 5 is installed within the box to sense the water level. The box has a first water outlet 31 and a second water outlet 32. The first outlet 31 is located on the sidewall of the box, while the second outlet 32 ​​is located at the bottom. A first water pump 41 is installed at the first outlet 31, and a second water pump 42 is installed at the second outlet 32.

[0048] A first condensate treatment unit, specifically a first atomizer 61, is installed in the smoke exhaust passage 22. The first atomizer 61 is located downstream of the condenser 12 along the direction of oil smoke flow. The outlet of the first water pump 41 is connected to the inlet of the first atomizer 61 via a first water outlet pipe 71. A second condensate treatment unit, specifically a second atomizer 62, is installed in the air outlet passage 23. The second atomizer 62 is located upstream of the evaporator 13 along the direction of air flow. The outlet of the second water pump 42 is connected to the inlet of the second atomizer 62 via a second water outlet pipe 72. The range hood also includes a controller (not shown). The controller receives the output signal of the float switch 5 and controls the operation of the first and second water pumps 41, 42 accordingly, thereby determining whether the first and second atomizers 61, 62 are functioning properly.

[0049] The working principle of the air-conditioning range hood is as follows:

[0050] With both the range hood and the air conditioner turned on, the switching valve 25 opens the first exhaust passage 221, allowing the fumes to be discharged through the first exhaust passage 221. Furthermore, the fumes flow across the surface of the condenser 12, cooling and dissipating the heat therein, thereby lowering the temperature of the refrigerant flowing through the condenser 12. This improves the heat exchange efficiency of the condenser 12 and, in turn, enhances the energy efficiency of the air conditioner. Simultaneously, the indoor fan 24 blows cool air out of the indoor fan 24 outlet and into the kitchen.

[0051] Only the range hood is turned on, and the second smoke exhaust channel 222 is opened by switching the switching valve 25 , and the oil smoke is exhausted through the second smoke exhaust channel 222 .

[0052] like Figure 3 As shown, the control method of the air-conditioning range hood of this embodiment includes the following steps:

[0053] S1, start;

[0054] S2, the first water pump 41 and the second water pump 42 are in the disconnected state;

[0055] S3, determining whether the air conditioner is turned on;

[0056] If yes, proceed to step S4;

[0057] If not, return to step S2;

[0058] S4, determine whether humidification is needed;

[0059] If yes, proceed to step S5;

[0060] If not, proceed to step S8;

[0061] S5, the second water pump 42 works, and the second atomizer 62 works;

[0062] S6, determine whether the float switch 5 is activated;

[0063] If yes, the first water pump 41 continues to operate for t seconds, and then proceeds to step S7;

[0064] If not, return to step S5;

[0065] S7, determine whether humidification is needed;

[0066] If yes, return to step S5;

[0067] If not, proceed to step S8;

[0068] S8, the first water pump 41 keeps working;

[0069] S9, determining whether the air conditioning mode is off;

[0070] If yes, proceed to step S10;

[0071] If not, return to step S4;

[0072] S10, end.

[0073] In step S6 , the first water pump 41 operates continuously for 30 to 120 seconds, usually about 60 seconds.

[0074] In addition, the control method determines the working state of the air conditioner through the controller, that is, determines whether the compressor 11 is started or shut down.

[0075] It can be seen from the above control method that after the system starts, the first water pump 41 and the second water pump 42 are in the disconnected state. After the air conditioner is turned on, if there is a need for humidification in the room, the second water pump 42 and the second atomizer 62 will work, and the condensed water will be atomized in the air outlet channel 23 and discharged from the air outlet 232 of the air outlet channel 23. During the atomization process, it is necessary to determine whether the float switch 5 is started, that is, whether the water level in the water receiving box 3 is high. If the water level triggers the float switch 5, it means that the condensed water is produced too quickly and there is a risk of overflow of the condensed water in the water receiving box 3. Then the first water pump 41 needs to work for a period of time to transport the condensed water to the first atomizer 61 through the first water pump 41. After the condensed water is atomized in the oil fume channel 22, the condenser 12 is cooled. Moreover, during the atomization and cooling process of the condenser 12, it is also possible to continue to determine whether the room needs humidification. If humidification is required, the second water pump 42 and the second atomizer 62 continue to work. If humidification is not required, the first water pump 41 can be kept working. Finally, it can be determined whether the air conditioner is turned off. If the air conditioner is turned off, the first water pump 41, the second water pump 42, the first atomizer 61 and the second atomizer 62 can all stop working or continue working, and then the condensed water in the water receiving box 3 is pumped out. If the air conditioner is not turned off, it is determined again whether humidification is needed to perform the next corresponding action.

Claims

1. An air-conditioning range hood, comprising an air conditioning assembly and a range hood assembly, wherein the air conditioning assembly comprises a compressor (11), a condenser (12) and an evaporator (13), wherein the compressor (11), the condenser (12) and the evaporator (13) are connected via a refrigerant pipeline (14), wherein the range hood assembly comprises a casing (20) and a range hood fan (21) installed inside the casing, wherein a smoke exhaust passage (22) and an air outlet passage (23) isolated from each other are provided inside the casing (20), wherein the condenser (12) is provided in the smoke exhaust passage (22), and the evaporator (13) is provided in the air outlet passage (23), and wherein a water receiving box (3) for collecting condensed water condensed on the surface of the evaporator (13) is provided inside the casing (20), wherein the water receiving box (3) is provided inside the casing (20), wherein the water receiving box (3) is provided for collecting condensed water condensed on the surface of the evaporator (13), and ... A first condensed water treatment device is installed in the smoke exhaust channel (22), a second condensed water treatment device is installed in the air outlet channel (23), the water receiving box (3) has a first water outlet (31) and a second water outlet (32), a first water pump (41) is installed on the waterway connecting the first water outlet (31) and the first condensed water treatment device, and a second water pump (42) is installed on the waterway connecting the second water outlet (32) and the second condensed water treatment device, a float switch (5) is also installed in the water receiving box (3), and the range hood further includes a controller for correspondingly controlling the first water pump (41) and the second water pump (42) by receiving a signal from the float switch (5); the control method of the air-conditioning range hood comprises the following steps: S1, start; S2, the first water pump and the second water pump are in the disconnected state; S3, determining whether the air conditioner is turned on; If yes, proceed to step S4; If not, return to step S2; S4, determine whether humidification is needed; If yes, proceed to step S5; If not, proceed to step S8; S5, the second water pump works, and the second atomizer works; S6, determine whether the float switch is activated; If yes, the first water pump continues to operate for t seconds, and then proceeds to step S7; If not, return to step S5; S7, determine whether humidification is needed; If yes, return to step S5; If not, proceed to step S8; S8, the first water pump keeps working; S9, determining whether the air conditioning mode is off; If yes, proceed to step S10; If not, return to step S4; S10, end.

2. The air-conditioning type range hood according to claim 1, characterized in that: The first condensed water treatment device is a first atomizer (61), and the second condensed water treatment device is a second atomizer (62).

3. The air-conditioning type range hood according to claim 2, characterized in that: Along the flow direction of the oil smoke, the first atomizer (61) is arranged downstream of the condenser (12).

4. The air-conditioning type range hood according to claim 2, characterized in that: Along the air flow direction, the second atomizer (62) is arranged upstream of the evaporator (13).

5. The air-conditioning type range hood according to claim 4, characterized in that: An air outlet fan (24) is installed in the air outlet channel (23), and along the air flow direction, the air outlet fan (24) is arranged downstream of the evaporator (13), and an air inlet (231) and an air outlet (232) of the air outlet channel (23) are provided on the housing (20).

6. The air-conditioning type range hood according to claim 1, characterized in that: The smoke exhaust channel (22) comprises a first smoke exhaust channel (221) and a second smoke exhaust channel (222). A switching valve (25) is installed at the outlet of the oil fume exhaust fan (21) for switching one of the first smoke exhaust channel (221) and the second smoke exhaust channel (222) to be connected to the outlet of the oil fume exhaust fan (21). The condenser (12) is arranged in the first smoke exhaust channel (221).

7. The air-conditioning type range hood according to claim 6, characterized in that: An oil fume purification device (26) is installed in the first smoke exhaust channel (221), and along the flow direction of the oil fume, the oil fume purification device (26) is arranged upstream of the condenser (12).

8. The air-conditioning type range hood according to claim 1, characterized in that: The compressor (11) is installed inside the casing (20).

9. The air-conditioning type range hood according to claim 1, characterized in that: In step S6, the first water pump continues to operate for 30 to 120 seconds.

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