Kitchen air conditioning system

Abstract

A kitchen air conditioning system includes an air conditioning component and a range hood, wherein a fresh air passage is provided outside the range hood casing, an upper air outlet passage isolated from a smoke exhaust passage is provided inside the casing, an air inlet of the upper air outlet passage is connected to the fresh air passage, an air outlet of the upper air outlet passage is connected to the kitchen room, a first heat exchanger is installed in the fresh air passage, a second heat exchanger is installed in the smoke exhaust passage, a lower air outlet passage is provided in a lower cabinet, a third heat exchanger is installed in the lower air outlet passage, and a three-way reversing valve for switching the second heat exchanger to be connected to the first heat exchanger or the third heat exchanger is installed on a refrigerant pipeline. The kitchen air conditioning system can make the upper air outlet passage on the range hood blow out cold air in summer by switching the four-way valve and the three-way reversing valve, and the cold air will sink downward, and can make the lower air outlet passage on the lower cabinet blow out warm air in winter, and the hot air will float upward, thereby obtaining a better air outlet effect in both summer and winter.

Description

Technical Field

[0001] The invention relates to a kitchen air conditioning system. Background Art

[0002] The kitchen is the main place for people to cook, and the quality of the kitchen air environment directly affects the mood of the cook. During the cooking process, a large amount of smoke is often generated in the kitchen. In the hot summer and cold winter, the external environment will affect the user's experience. Users have an increasingly strong demand for range hoods to blow cold air in summer and hot air in winter, thereby improving the cooking experience. To this end, people have invented various kitchen air conditioners to cool or heat the kitchen air. Existing kitchen air conditioners usually adopt an internal and external split type, that is, the external unit is located outdoors, the internal unit is located indoors, and the internal and external units each have a motor fan. The connection method of the internal and external split type kitchen air conditioner needs to be connected through a pipeline, and a hole needs to be opened on the wall, which destroys the decoration. An external unit needs to be hung outside, and the structure is not compact enough, and the installation is relatively inconvenient. Although, there are also products such as air-conditioning hoods, that is, air-conditioning components are added on the basis of the range hood platform, which can realize all the functions of the range hood and the function of the air conditioner at the same time. However, these air conditioner hoods often simply combine the functions of the indoor unit of the traditional air conditioner with the traditional range hood, and the outdoor unit of the air conditioner still needs to be installed separately outdoors. This type of air conditioner range hood is not integrated enough and the installation is relatively cumbersome. In addition, the pipes and lines connecting the indoor and outdoor units of the air conditioner will also damage the wall. In summary, the existing kitchen air conditioning system needs to be further improved. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a kitchen air conditioning system capable of switching air outlet modes between winter and summer in view of the above-mentioned existing technical status.

[0004] The technical solution adopted by the present invention to solve the above technical problems is as follows: the kitchen air conditioning system comprises an air conditioning component and a range hood, the air conditioning component comprises a compressor, a first heat exchanger and a second heat exchanger, the compressor, the first heat exchanger and the second heat exchanger are connected through a refrigerant pipeline, a four-way valve is installed on the refrigerant pipeline, a smoke exhaust channel is provided in the casing of the range hood, and the characteristics are as follows: a fresh air channel connected to the outside of the casing is provided outside the casing, an upper air outlet channel isolated from the smoke exhaust channel is also provided in the casing, an air inlet of the upper air outlet channel is connected to the fresh air channel, an upper air outlet of the upper air outlet channel is connected to the kitchen room, the first heat exchanger is installed in the fresh air channel, the second heat exchanger is installed in the smoke exhaust channel, a lower air outlet channel connected to the kitchen room is provided in the lower cabinet, a third heat exchanger is installed in the lower air outlet channel, and a three-way reversing valve for switching the second heat exchanger to be connected to the first heat exchanger or the third heat exchanger is installed on the refrigerant pipeline.

[0005] Preferably, the first port of the four-way valve is connected to the second heat exchanger, the second port of the four-way valve is connected to the refrigerant pipeline between the first heat exchanger and the third heat exchanger, the third port and the fourth port of the four-way valve are connected to the compressor, the first port of the three-way reversing valve is connected to the second heat exchanger, the second port of the three-way reversing valve is connected to the first heat exchanger, and the third port of the three-way reversing valve is connected to the second heat exchanger.

[0006] A fresh air module is installed outside the casing, and the fresh air module includes an outer shell, and the fresh air channel is formed inside the outer shell. The fresh air inlet of the fresh air channel is connected to the outdoors, and the fresh air outlet of the fresh air channel is connected to the air inlet of the upper air outlet channel.

[0007] In order to purify the fresh air, a fresh air purification device, a first fan and the first heat exchanger are sequentially arranged inside the shell and along the path through which the fresh air flows, and the air outlet of the first fan faces the first heat exchanger.

[0008] The fresh air module can be installed in a variety of ways. Preferably, the fresh air module is suspended above the kitchen ceiling.

[0009] In order to allow the wind blown out by the first air outlet device to blow toward the cook's face, the upper air outlet of the upper air outlet channel is in the shape of a vertical bar and is vertically distributed at the center or approximately the center of the left and right sides of the front of the casing.

[0010] In order to make the internal structure of the range hood more reasonable, a range hood fan is installed in the casing. The range hood fan is a horizontally arranged centrifugal fan. The smoke exhaust channel is formed downstream of the air outlet of the range hood fan. The smoke exhaust channel and the upper air outlet channel both have vertical sections and the vertical sections are distributed left and right to each other, and the upper air outlet channel is located above the range hood fan.

[0011] Further preferably, the lower cabinet is located below the stove, the return air inlet and the lower air outlet of the lower air outlet channel are opened on the front of the lower cabinet, a second fan is also installed in the lower air outlet channel, the third heat exchanger is close to the lower air outlet, and the air outlet direction of the second fan is toward the third heat exchanger.

[0012] The compressor can be installed in a plurality of different positions. Preferably, the compressor is integrated on the casing of the range hood.

[0013] In order to prevent the oil smoke from contaminating the second heat exchanger in the exhaust passage, an oil smoke purification device is installed in the exhaust passage, and the oil smoke purification device is located upstream of the second heat exchanger along the path through which the oil smoke flows.

[0014] Compared with the prior art, the advantages of the present invention are: the kitchen air conditioning system installs a first heat exchanger in the fresh air duct outside the range hood, installs a second heat exchanger in the exhaust duct inside the range hood, and installs a third heat exchanger in the lower air outlet duct inside the lower cabinet, and by switching the four-way valve and the three-way reversing valve, in summer, the upper air outlet duct on the range hood can blow out cold air, and the cold air will sink downward, and in winter, the lower air outlet duct on the lower cabinet can blow out warm air, and the hot air will float upward, so that better air outlet effects can be obtained in both summer and winter, thereby improving user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0016] Figure 2 This is a schematic structural diagram of a fresh air module according to an embodiment of the present invention;

[0017] Figure 3 This is a schematic structural diagram of an upper air outlet channel according to an embodiment of the present invention;

[0018] Figure 4 This is a schematic structural diagram of a lower air outlet channel according to an embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of the internal structure of the lower air outlet channel according to an embodiment of the present invention;

[0020] Figure 6 This is a schematic diagram of the working principle of an embodiment of the present invention when blowing air in summer;

[0021] Figure 7 The figure is a schematic diagram of the working principle of the embodiment of the present invention when discharging wind in winter. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below with reference to the accompanying drawings.

[0023] like Figures 1 to 3 As shown, the kitchen air conditioning system of this embodiment includes an air conditioning component 1, a range hood 2, a fresh air module 3 and a lower cabinet 4. The air conditioning component 1 includes a compressor 11, a first heat exchanger 12 and a second heat exchanger 13. The compressor 11, the first heat exchanger 12 and the second heat exchanger 13 are connected through a refrigerant pipeline 14. A four-way valve 15 is installed on the refrigerant pipeline 14. By switching the four-way valve 15, the working mode is switched. The working principle of the air conditioning component 1 is the same as that of the existing air conditioner, and will not be described in detail here.

[0024] The range hood 2 includes a housing 20, and a range hood fan 23 is installed inside the housing 20. The range hood fan 23 of this embodiment is a horizontally arranged centrifugal fan, and a smoke exhaust channel 21 is formed downstream of the air outlet of the range hood fan 23. An upper air outlet channel 22 is also provided inside the housing 20, and the upper air outlet channel 22 is isolated from the smoke exhaust channel 21. Both the smoke exhaust channel 21 and the upper air outlet channel 22 have vertical sections. Figure 1 The direction indicated by the middle arrow A is right, and the vertical section of the smoke exhaust channel 21 is located on the left side of the vertical section of the upper air outlet channel 22. The upper air outlet channel 22 of this embodiment is located above the range fumes exhaust fan 23 as a whole, and an air supply fan 25 is installed in the upper air outlet channel 22. In addition, the upper air outlet channel 22 has an air inlet 221 and an upper air outlet 222. The upper air outlet 222 is in the shape of a vertical strip and is vertically distributed at the center or approximately the center of the front side of the housing 20.

[0025] The fresh air module 3 is located outside the range hood 1 and is suspended above the kitchen ceiling (not shown in the figure). The fresh air module 3 includes a housing 30, and a fresh air channel 31 is formed inside the housing 30. The fresh air inlet 311 of the fresh air channel 31 is connected to the outside, and the fresh air outlet 312 of the fresh air channel 31 is connected to the air inlet 221 of the upper air outlet channel 22. Inside the housing 30 and along the path through which the fresh air flows, a fresh air purification device 32, a first fan 33 and a first heat exchanger 12 are sequentially arranged, and the air outlet of the first fan 33 faces the first heat exchanger 12. Under the action of the first fan 33 and the air supply fan 25, the outdoor fresh air is replenished into the kitchen from the upper air outlet 222 through the fresh air channel 31 and the upper air outlet channel 22 in sequence. In addition, the first fan 33 and the air supply fan 25 can also be installed one by one.

[0026] The second heat exchanger 13 of the air conditioning assembly 1 is installed in the smoke exhaust channel 21. Along the path through which the oil smoke flows, an oil smoke purification device 24 is installed upstream of the second heat exchanger 13 to prevent the oil smoke from polluting the second heat exchanger 13. The compressor 11 of this embodiment is integrated on the casing 20 of the range hood 2. In addition, the compressor 11 can also be installed above the kitchen ceiling or other locations inside the kitchen.

[0027] Combination Figure 4 and Figure 5 As shown, a lower air outlet channel 41 communicating with the kitchen is provided in the lower cabinet 4 below the stove 5, and a return air port 411 and a lower air outlet 412 of the lower air outlet channel 41 are both provided on the panel of the lower cabinet 4. A second fan 42 and a third heat exchanger 17 are installed in the lower air outlet channel 41, and the third heat exchanger 17 is close to the lower air outlet 412, and the air outlet direction of the second fan 42 is toward the third heat exchanger 17.

[0028] The first port of the four-way valve 15 is connected to the second heat exchanger 13, the second port of the four-way valve 15 is connected to the refrigerant pipeline 14 between the first heat exchanger 12 and the third heat exchanger 17, and the third port and the fourth port of the four-way valve 15 are connected to the compressor 11. A three-way reversing valve 16 is also installed on the refrigerant pipeline 14, wherein the first port of the three-way reversing valve 16 is connected to the second heat exchanger 13, the second port 52 of the three-way reversing valve 16 is connected to the first heat exchanger 12, and the third port of the three-way reversing valve 16 is connected to the second heat exchanger 13.

[0029] The system works as follows:

[0030] like Figure 6 As shown, the three-way reversing valve 16 is switched to the first port connected to the second port, the compressor 11 is started, the first heat exchanger 12 is connected to the second heat exchanger 13, and the third heat exchanger 17 is disconnected. The refrigerant flowing out of the compressor 11 passes through the second heat exchanger 13 and the first heat exchanger 12 in turn and then flows back to the compressor 11. At this time, the second heat exchanger 13 is a condenser and the first heat exchanger 12 is an evaporator, thereby cooling the fresh air in the fresh air channel 31. After the fresh air is cooled, it enters the upper air outlet channel 22 and is then blown out from the upper air outlet 222 on the casing 20, meeting the cooling demand for kitchen air in summer. In addition, since the cold air has a large specific gravity, it will flow downward after being blown out from the upper air outlet 222, thereby having a better cooling effect on the kitchen air and improving the user experience.

[0031] like Figure 7 As shown, the three-way reversing valve 16 is switched to connect the first port with the third port, the compressor 11 is started, the third heat exchanger 17 is connected with the second heat exchanger 13, the first heat exchanger 12 is disconnected, and the refrigerant from the compressor 11 flows through the third heat exchanger 17 and the second heat exchanger 13 in turn and then flows back to the compressor 11. At this time, the third heat exchanger 17 is a condenser and the second heat exchanger 13 is an evaporator, thereby heating the indoor return air in the lower air outlet channel 41. The air in the lower air outlet channel 41 is heated and blown out from the lower air outlet 412, meeting the heating demand for the outlet air in winter. Since the hot air has a smaller specific gravity, it will flow upward after being blown out from the lower air outlet 412, thereby having a better heating effect on the kitchen air, which is beneficial to improving the user experience.

Claims

1. A kitchen air conditioning system, comprising an air conditioning component (1) and a range hood (2), wherein the air conditioning component (1) comprises a compressor (11), a first heat exchanger (12) and a second heat exchanger (13), wherein the compressor (11), the first heat exchanger (12) and the second heat exchanger (13) are connected via a refrigerant pipeline (14), a four-way valve (15) is installed on the refrigerant pipeline (14), and a smoke exhaust passage (21) is provided in a casing (20) of the range hood (2), characterized in that: A fresh air passage (31) connected to the outside is provided outside the housing (20), an upper air outlet passage (22) isolated from the smoke exhaust passage (21) is also provided inside the housing (20), an air inlet (221) of the upper air outlet passage (22) is connected to the fresh air passage (31), an upper air outlet (222) of the upper air outlet passage (22) is connected to the kitchen room, the first heat exchanger (12) is installed in the fresh air passage (31), the second heat exchanger (13) is installed in the smoke exhaust passage (21), and a heat exchanger (13) is installed in the lower cabinet (4). A lower air outlet channel (41) connected to the kitchen room is provided therein, a third heat exchanger (17) is installed in the lower air outlet channel (41), a three-way reversing valve (16) is installed on the refrigerant pipeline (14) for switching the second heat exchanger (13) to be connected to the first heat exchanger (12) or to be connected to the third heat exchanger (17), an oil fume purification device (24) is also installed in the exhaust channel (21), and the oil fume purification device (24) is located upstream of the second heat exchanger (13) along the path through which the oil fume flows.

2. The kitchen air conditioning system according to claim 1, characterized in that: The first port of the four-way valve (15) is connected to the second heat exchanger (13), the second port of the four-way valve (15) is connected to the refrigerant pipeline (14) between the first heat exchanger (12) and the third heat exchanger (17), the third port and the fourth port of the four-way valve (15) are connected to the compressor (11), the first port of the three-way reversing valve (16) is connected to the second heat exchanger (13), the second port (52) of the three-way reversing valve (16) is connected to the first heat exchanger (12), and the third port of the three-way reversing valve (16) is connected to the second heat exchanger (13).

3. The kitchen air conditioning system according to claim 1, characterized in that: A fresh air module (3) is installed outside the casing (20), the fresh air module (3) comprises an outer shell (30), the fresh air channel (31) is formed inside the outer shell (30), the fresh air inlet (311) of the fresh air channel (31) is connected to the outdoors, and the fresh air outlet (312) of the fresh air channel (31) is connected to the air inlet (221) of the upper air outlet channel (22).

4. The kitchen air conditioning system according to claim 3, characterized in that: A fresh air purification device (32), a first fan (33) and the first heat exchanger (12) are sequentially arranged inside the casing (30) and along the path through which the fresh air flows, and the air outlet of the first fan (33) faces the first heat exchanger (12).

5. The kitchen air conditioning system according to claim 3, characterized in that: The fresh air module (3) is suspended above the kitchen ceiling.

6. The kitchen air conditioning system according to claim 1, characterized in that: The upper air outlet (222) of the upper air outlet channel (22) is in the shape of a vertical bar and is vertically distributed at a position centered on the left or right side of the front of the housing (20) or approximately centered on the center.

7. The kitchen air conditioning system according to claim 1, characterized in that: A fume extractor fan (23) is installed in the casing (20). The fume extractor fan (23) is a horizontally arranged centrifugal fan. The smoke exhaust channel (21) is formed downstream of the air outlet of the fume extractor fan (23). Both the smoke exhaust channel (21) and the upper air outlet channel (22) have vertical sections, and the vertical sections are distributed left and right. Furthermore, the upper air outlet channel (22) is located above the fume extractor fan (23).

8. The kitchen air conditioning system according to claim 1, characterized in that: The lower cabinet (4) is located below the stove (5); the front of the lower cabinet (4) is provided with an air return port (411) and a lower air outlet (412) of the lower air outlet channel (41); a second fan (42) is also installed in the lower air outlet channel (41); the third heat exchanger (17) is close to the lower air outlet (412); and the air outlet direction of the second fan (42) is toward the third heat exchanger (17).

9. The kitchen air conditioning system according to claim 1, characterized in that: The compressor (11) is integrated on the casing (20) of the range hood (2).

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