Kitchen air conditioning system

Abstract

According to the kitchen air conditioning system, a shell of an air conditioning assembly of the kitchen air conditioning system is provided with a first air inlet, a second air inlet, a first air outlet and a second air outlet, the first air inlet is communicated with the outside of a kitchen, the second air inlet is communicated with the inside of the kitchen, and the first air outlet is communicated with the outside; the second air outlet is communicated with the interior of a kitchen, a heat dissipation fan and a condenser in the shell are arranged in a heat dissipation air channel between the first air inlet and the first air outlet, an indoor unit fan and an evaporator are arranged in an indoor unit air channel between the second air inlet and the second air outlet, and a first valve is installed between the heat dissipation air channel and the indoor unit air channel. And a second valve is mounted at the second air inlet. According to the kitchen air conditioning system, the air taking mode of the evaporator is adjusted through opening and closing of the first valve and the second valve, during external circulation, the evaporator takes air from the outside, is used for cooling the condenser and serves as an air inlet source of the indoor unit draught fan, and during internal circulation, the evaporator takes air from the inside.

Description

Technical Field

[0001] The utility model relates to an air conditioning system, in particular to a kitchen air conditioning system. Background Art

[0002] The kitchen is the main place where people cook. In hot summer, the stuffy environment in the kitchen brings great discomfort to the cook. For this reason, people have invented various kitchen air conditioning systems to adjust the kitchen air. There are various refrigerated range hoods disclosed in the prior art, which add an air conditioning component on the basis of the range hood platform. The compressor, condenser and evaporator are connected through a refrigerant pipeline. The refrigerated range hood can not only realize all the functions of the range hood, but also realize the functions of the air conditioner. When working in the refrigeration mode, the condenser needs to dissipate heat. At present, the condenser is usually placed in the oil fume channel and cooled by the oil fume extraction fan. Such as the "Range Hood" disclosed in the Chinese utility model patent with the patent number 201620118025.6 (the authorized announcement number is CN205481215U), the condensers of this range hood are all arranged in the smoke exhaust cavity. Although the condenser can be cooled by the centrifugal fan of the range hood after the air with oil fume is purified, since the air with oil fume will pollute the surface of the condenser and cause dirt blockage, a purification device usually needs to be installed at the front end of the condenser. After setting the purification device, it is easy to cause the smoke exhaust channel to be unsmooth, with a high noise, and the purification device has a high cost and a high failure rate, and needs to be maintained regularly. Moreover, the purification device often cannot completely remove the oil fume particles in the air. In this way, when the wind of the fan blows towards the condenser, the condenser may be polluted by the oil fume, resulting in a decrease in the heat dissipation performance caused by dirt blockage, and the cost of replacing the purification device is relatively high. Another example is the "A Refrigerated Range Hood" disclosed in the Chinese utility model patent with the patent number 202320263768.2 (the authorized announcement number is CN 219550624U). An air conditioner indoor unit module is arranged outside the upper box body of this range hood. The air conditioner indoor unit module has an evaporator. The upper box body is divided into a smoke exhaust cavity and a heat dissipation cavity. An oil fume extraction fan is installed in the smoke exhaust cavity, and the heat dissipation air outlet of the heat dissipation cavity is connected to the smoke exhaust cavity. A condenser is installed in the heat dissipation cavity. Although the condenser of this range hood is arranged outside the oil fume channel, it can avoid the oil fume from polluting the condenser, but it is necessary to dissipate heat from the condenser through the oil fume extraction fan, which occupies the effective air volume of the range hood itself and affects the oil fume extraction effect. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a kitchen air conditioning system that can adjust the air intake mode of the evaporator under different working modules of internal and external circulation according to the above-mentioned current situation of the prior art.

[0004] The technical solution adopted by the present utility model to solve the above technical problems is as follows: A kitchen air conditioning system includes a range hood and an air conditioning component. The air conditioning component includes a compressor, a condenser, and an evaporator. The compressor, the condenser, and the evaporator are connected through a refrigerant pipeline. It is characterized in that: the air conditioning component includes a housing, the housing has a first air inlet, a second air inlet, a first air outlet, and a second air outlet. The first air inlet is connected to the outside of the kitchen, the second air inlet is connected to the inside of the kitchen, the first air outlet is connected to the outside, and the second air outlet is connected to the inside of the kitchen. A heat dissipation fan and an indoor unit fan are installed inside the housing. The heat dissipation fan and the condenser are arranged in a heat dissipation air duct between the first air inlet and the first air outlet. The indoor unit fan and the evaporator are arranged in an indoor unit air duct between the second air inlet and the second air outlet. A first valve is installed between the heat dissipation air duct and the indoor unit air duct, and a second valve is installed at the second air inlet.

[0005] In order to enable the kitchen air conditioning system to switch the internal and external circulation modules under different indoor temperature and humidity conditions, a temperature sensor and a humidity sensor are installed on the second valve. It also includes a controller. The controller can receive the output signals of the temperature sensor and the humidity sensor, and correspondingly control the opening and closing states of the first valve and the second valve according to the received signals.

[0006] The housing can be installed in multiple different positions. Preferably, the housing is installed above the kitchen ceiling, and an indoor air outlet is opened on the kitchen ceiling. The second air outlet is in fluid communication with the indoor air outlet.

[0007] In order to form a blowing heat dissipation effect on the condenser, along the air flow direction, the condenser is arranged downstream of the heat dissipation fan outlet.

[0008] In order to avoid installing a filter screen in the heat dissipation air duct, the filter screen is arranged in the air duct between the condenser and the heat dissipation fan outlet.

[0009] In order to atomize the condensed water and discharge it outdoors through the first air outlet, a first water box and a second water box are installed inside the housing. The first water box is arranged below the evaporator and is used to receive the condensed water flowing down from the surface of the evaporator. The water outlet of the first water box is connected to the water inlet of the second water box through a water pipe, and the lower part of the filter screen extends into the second water box.

[0010] In order to have a suction effect on the condenser, along the air flow direction, the evaporator is arranged upstream of the indoor unit fan.

[0011] The compressor can be installed in multiple different positions. Preferably, the compressor is installed inside the housing or on the range hood.

[0012] The valve can be in various forms. Preferably, both the first valve and the second valve are rotary valves.

[0013] Compared with the prior art, the advantages of the present utility model are as follows: In the kitchen air conditioning system, a heat dissipation air duct and an indoor unit air duct are formed inside the housing of the air conditioning component. The heat dissipation air duct takes air from the outside, avoiding the fouling of the condenser and affecting the oil fume extraction effect. A first valve is installed between the heat dissipation air duct and the indoor unit air duct, and a second valve is installed at the second air inlet of the housing. The air intake mode of the evaporator is adjusted by the opening and closing of the first valve and the second valve. When the user selects the external circulation air conditioner, the evaporator takes air from the outside. This air can be used for cooling the condenser and as the air inlet source for the indoor unit fan. When the user selects the internal circulation air conditioner, the evaporator takes air from the room. Description of the Drawings

[0014] Figure 1 Structural schematic diagram of the kitchen air conditioning system according to Embodiment 1 of the present utility model (external circulation mode);

[0015] Figure 2 Structural schematic diagram of the kitchen air conditioning system according to Embodiment 1 of the present utility model (internal circulation mode);

[0016] Figure 3 Structural schematic diagram of the air conditioning component according to Embodiment 1 of the present utility model;

[0017] Figure 4 Connection schematic diagram of the air conditioning component according to Embodiment 1 of the present utility model;

[0018] Figure 5 Flow chart of the control method according to Embodiment 1 of the present utility model;

[0019] Figure 6 Structural schematic diagram of the kitchen air conditioning system according to Embodiment 2 of the present utility model (external circulation mode);

[0020] Figure 7 Structural schematic diagram of the kitchen air conditioning system according to Embodiment 2 of the present utility model (internal circulation mode). Detailed Description of the Preferred Embodiments

[0021] The present utility model will be further described in detail below in conjunction with the embodiments in the drawings.

[0022] Embodiment 1:

[0023] As Figures 1 to 4As shown in the figure, the kitchen air conditioning system of this embodiment includes a range hood 1 and an air conditioning component 2. The range hood 1 has an exhaust passage 11. The air conditioning component 2 includes a compressor 21, a condenser 22 and an evaporator 23, and the compressor 21, the condenser 22 and the evaporator 23 are connected through a refrigerant pipeline. The air conditioning component 2 includes a housing 20. The compressor 21, the condenser 22 and the evaporator 23 are all installed inside the housing 20. The housing 20 has a first air inlet 201, a second air inlet 202, a first air outlet 203 and a second air outlet 204. The first air inlet 201 is connected to the outside of the kitchen to achieve outdoor air intake, the second air inlet 202 is connected to the inside of the kitchen to achieve indoor air intake, the first air outlet 203 is connected to the outside to discharge hot air outdoors, and the second air outlet 204 is connected to the inside of the kitchen to blow cold air into the room. Inside the housing 20, there is a heat dissipation air duct 26 and an indoor unit air duct 27. The first air inlet 201 is connected to the first air outlet 203 through the heat dissipation air duct 26. Inside the heat dissipation air duct 26, there are installed a heat dissipation fan 24, a filter screen 210 and the condenser 22. The heat dissipation fan 24, the filter screen 210 and the condenser 22 are distributed in sequence along the air flow direction, that is, the filter screen 210 is located downstream of the air outlet of the heat dissipation fan 24, and the condenser 22 is located downstream of the filter screen 210. The filter screen 210 plays a filtering role to prevent oil fume or other air impurities from polluting the condenser 22. The second air inlet 202 is connected to the second air outlet 204 through the indoor unit air duct 27. Inside the indoor unit air duct 27, there are installed an indoor unit fan 25 and the evaporator 23. Along the air flow direction, the evaporator 23 is located upstream of the indoor unit fan 25, that is, the indoor unit fan 25 forms a suction effect on the evaporator 23. The housing 20 of this embodiment is installed on the kitchen ceiling 5. An indoor air outlet 6 is opened on the kitchen ceiling 5. The second air outlet 204 is in fluid communication with the indoor air outlet 6. The air in the indoor unit air duct 27 finally blows into the kitchen through the indoor air outlet 6. A ventilation opening in fluid communication with the second air inlet 202 is also opened on the kitchen ceiling 5. The air in the kitchen enters the indoor unit air duct 27 through the ventilation opening and the second air inlet 202 to achieve indoor air intake in the kitchen.

[0024] A first valve 28 is installed between the heat dissipation air duct 26 and the indoor unit air duct 27, and a second valve 29 is installed at the second air inlet 202. The first valve 28 and the second valve 29 of this embodiment are both rotary valves. A temperature sensor 3 and a humidity sensor 4 are installed on the second valve 29. The controller can receive the output signals of the temperature sensor 3 and the humidity sensor 4, and correspondingly control the opening and closing states of the first valve 28 and the second valve 29 according to the received signals, so as to switch between the air conditioner's internal circulation and external circulation modes.

[0025] When the air conditioner works in the cooling mode, it will generate condensate. In this embodiment, a first water box 211 and a second water box 212 are installed inside the housing 20. The first water box 211 is arranged below the evaporator 23 and is used to receive the condensate flowing down from the surface of the evaporator 23. The water outlet of the first water box 211 is connected to the water inlet of the second water box 212 through a water pipe 213. The lower part of the filter screen 210 extends into the second water box 212. The wind blown by the cooling fan 24 blows towards the filter screen 210, and the condensate adsorbed on the filter screen 210 can be blown out through the first air outlet 203.

[0026] As Figure 5 shown, the control method of the kitchen air conditioning system in this embodiment includes the following steps:

[0027] S1. Start;

[0028] S2. Whether the air conditioner is turned on;

[0029] If yes, go to step S3;

[0030] If no, turn on the range hood mode, and then go to step S5;

[0031] S3. The air conditioner turns on the internal circulation, the first valve 28 is closed, and the second valve 29 is opened;

[0032] S4. Determine whether the humidity detected by the humidity sensor 4 and the temperature detected by the temperature sensor 3 are greater than their respective set values;

[0033] If yes, maintain the internal circulation, and then go to step S5;

[0034] If no, the first valve 28 is opened, the external circulation is turned on, and according to different humidity and temperature, the first valve 28 and the second valve 29 are opened to appropriate openings, and then go to step S5;

[0035] S5. End.

[0036] In step S4, the set value of humidity can be 50%, and the set value of temperature can be 28°C. Or, it can also be set to other reasonable values. When both the first valve 28 and the second valve 29 are opened to appropriate openings, outdoor air intake and indoor air intake can be carried out simultaneously. When the opening of the first valve 28 is greater than the opening of the second valve 29, outdoor air intake is the main, and vice versa, indoor air intake is the main.

[0037] As Figure 1As shown, it is the outdoor circulation mode of the air conditioner. At this time, the first valve 28 is opened and the second valve 29 is closed, that is, the system takes air from the outside and closes the indoor air intake. At this time, under the suction of the heat dissipation fan 24, outdoor fresh air enters the heat dissipation air duct 26 through the first air inlet 201. Since the first valve 28 is in the open state, therefore, after a part of the outdoor fresh air enters the heat dissipation fan 26, it blows towards the filter screen 210 and the condenser 22, and finally is discharged outward through the first air outlet 203. Another part of the outdoor fresh air flows into the indoor unit air duct 27, and after passing through the evaporator 23 under the suction of the indoor unit fan 25, it is blown out through the second air outlet 204, and finally cold air is blown out towards the kitchen interior through the indoor air outlet 26 on the kitchen ceiling 5.

[0038] As Figure 2 shown, it is the indoor circulation mode of the air conditioner. At this time, the first valve 28 is closed and the second valve 29 is opened. The condenser 22 still takes air from the outside, while the evaporator 23 takes air from the indoor, and the outdoor air intake is closed. At this time, the outdoor fresh air can still enter the heat dissipation air duct 26 through the first air inlet 201, and after all entering the heat dissipation fan 26, it blows towards the filter screen 210 and the condenser 22, and finally is discharged outward through the first air outlet 203. The air in the kitchen interior enters the indoor unit air duct 27 through the second air inlet 202, and after passing through the evaporator 23 under the suction of the indoor unit fan 25, it is blown out through the second air outlet 204, and finally cold air is blown out towards the kitchen interior through the indoor air outlet 26 on the kitchen ceiling 5.

[0039] Embodiment 2:

[0040] As Figure 6 and Figure 7 shown, in this embodiment, the compressor 21 is installed on the external range hood 1, and the temperature sensor 3 and the humidity sensor 4 are cancelled on the second valve 29. The rest of the structure of this embodiment is the same as that of Embodiment 1, and will not be described in detail here.

[0041] The so-called "fluid communication" in the present utility model refers to the spatial position relationship between two components or parts, hereinafter uniformly referred to as the first part and the second part respectively, that is, the fluid (gas, liquid or a mixture of both) can flow along the flow path from the first part and / or be transported to the second part. It can be that the first part and the second part are directly connected, or the first part and the second part are indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, a passage, a conduit, a flow guiding member, a hole, a groove, etc., or a chamber allowing the fluid to flow through, or a combination of the above.

Claims

1. A kitchen air conditioning system, comprising an oil fume extractor (1) and an air conditioning component (2), wherein the air conditioning component (2) includes a compressor (21), a condenser (22) and an evaporator (23), and the compressor (21), the condenser (22) and the evaporator (23) are connected and communicated through a refrigerant pipeline, and is characterized in that: The air conditioning assembly (2) includes a housing (20) which has a first air inlet (201), a second air inlet (202), a first air outlet (203) and a second air outlet (204). The first air inlet (201) is in communication with the outside of the kitchen, the second air inlet (202) is in communication with the inside of the kitchen, the first air outlet (203) is in communication with the outside, and the second air outlet (204) is in communication with the inside of the kitchen. A heat dissipation fan (24) and an indoor unit fan (25) are installed inside the housing (20). The heat dissipation fan (24) and the condenser (22) are arranged in a heat dissipation air duct (26) between the first air inlet (201) and the first air outlet (203), and the indoor unit fan (25) and the evaporator (23) are arranged in an indoor unit air duct (27) between the second air inlet (202) and the second air outlet (204). A first valve (28) is installed between the heat dissipation air duct (26) and the indoor unit air duct (27), and a second valve (29) is installed at the second air inlet (202).

2. The kitchen air conditioning system according to claim 1, wherein: A temperature sensor (3) and a humidity sensor (4) are installed on the second valve (29), and a controller is further included. The controller can receive the output signals of the temperature sensor (3) and the humidity sensor (4), and correspondingly control the opening and closing states of the first valve (28) and the second valve (29) according to the received signals.

3. The kitchen air conditioning system according to claim 1, characterized in that: The housing (20) is installed above the kitchen ceiling (5), and an indoor air outlet (6) is opened on the kitchen ceiling (5). The second air outlet (204) is in fluid communication with the indoor air outlet (6).

4. The kitchen air conditioning system according to claim 1, wherein: Along the air flow direction, the condenser (22) is arranged downstream of the outlet of the heat dissipation fan (24).

5. The kitchen air conditioning system according to claim 4, characterized in that: A filter screen (210) is installed in the heat dissipation air duct (26), and the filter screen (210) is arranged in the air duct between the condenser (22) and the outlet of the heat dissipation fan (24).

6. The kitchen air conditioning system according to claim 5, wherein: A first water box (211) and a second water box (212) are installed inside the housing (20). The first water box (211) is arranged below the evaporator (23) and used to receive the condensed water flowing down from the surface of the evaporator (23). The water outlet of the first water box (211) is connected to the water inlet of the second water box (212) through a water pipe (213), and the lower part of the filter screen (210) extends into the second water box (212).

7. The kitchen air conditioning system according to claim 1, wherein: Along the air flow direction, the evaporator (23) is arranged upstream of the indoor unit fan (25).

8. The kitchen air conditioning system according to claim 1, characterized in that: The compressor (21) is installed inside the housing (20) or on the range hood (1).

9. The kitchen air conditioning system according to claim 1, wherein: Both the first valve (28) and the second valve (29) are rotary valves.

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