Air suction equipment

Abstract

The invention relates to the technical field of kitchen appliances, in particular to air suction equipment which comprises an equipment body, an environment cooling part and a heat exchange material, an air suction channel is formed in the equipment body, and a heat exchange passage is further formed in the inner wall of the side, facing the air suction channel, of the equipment body; a cooling space is formed in the environment cooling part and communicates with the heat exchange channel. And the heat exchange material is accommodated in the heat exchange passage and / or the cooling space. By means of the structure, the heat exchange material can flow in the heat exchange channel, so that heat in the air suction channel is carried into the environment cooling piece, the heat exchange material is cooled through the environment temperature lower than the environment temperature in the air suction channel, the heat dissipation performance of the air suction channel is improved, oil smoke in aerosol is removed through condensation, and the heat dissipation efficiency of the air suction channel is improved. And the usability of the air suction equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen appliances, and in particular to an air suction device. Background Art

[0002] When heating food, oil smoke with a temperature higher than the ambient temperature is usually produced. Oil smoke is a black substance produced by incomplete combustion of oil. It is very sticky and difficult to clean after condensation. It also contains a variety of harmful substances, such as acrolein, benzene, formaldehyde, crotonaldehyde, volatile nitrosamines, etc. Once inhaled, it will cause irreversible damage to the cook's body. Therefore, in the kitchen, a range hood is usually installed for the stove to reduce the amount of oil smoke inhaled by the cook.

[0003] At present, common range hoods use the suction channel to inhale aerosols from the room. When passing through the suction channel, the aerosols exchange heat with the environment and naturally cool down. Part of the oil smoke condenses in this process, which can make the aerosols discharged to the outside environment cleaner and reduce the pollution to the outside world. However, when heating food, the temperature in the suction channel is also significantly increased, and the temperature difference with the aerosol is small, resulting in the natural cooling effect of removing oil smoke is not obvious. Summary of the invention

[0004] In view of this, the present invention provides an air suction device that can effectively remove oil smoke in aerosol.

[0005] In order to solve the above technical problems, a technical solution adopted by the present application is: to provide an air suction device, including a device body, an environmental cooling component, and a heat exchange material. The device body is provided with an air suction channel, and a heat exchange passage is also formed in the inner wall of the device body facing the air suction channel; a cooling space is formed inside the environmental cooling component, and the cooling space is connected to the heat exchange passage; the heat exchange material is contained in the heat exchange passage and / or the cooling space.

[0006] In a specific embodiment, the device body includes a condensation net, an input pipe and an output pipe, and the two ends of the input pipe and the output pipe are respectively connected to the cooling space and the heat exchange passage, and the heat exchange passage is formed in the condensation net. At least part of the aerosol entering the suction channel passes through the condensation net, and the heat exchange material can enter the heat exchange passage from the cooling space through the input pipe and be output from the heat exchange passage to the cooling space through the output pipe.

[0007] In a specific embodiment, there are multiple condensation nets, and the multiple condensation nets are perpendicular to the extension direction of the suction channel and are arranged one by one along the suction channel.

[0008] In a specific embodiment, the device body is formed with a suction port connected to the suction channel, and the heat exchange passage is coiled and arranged on the inner wall of the device body at one end of the suction channel close to the suction port.

[0009] In a specific embodiment, the equipment body includes a shell and a coiled pipeline, the heat exchange passage is formed in the coiled pipeline, both ends of the coiled pipeline are connected to the cooling space, the shell is surrounded to form the suction channel, the suction port is opened in the shell, and the coiled pipeline is coiled along the shell at one end of the suction port.

[0010] In a specific embodiment, the device body also includes a heat conductor and a fan, the device body is formed with a suction port connected to the suction channel, the fan is arranged in the suction channel, one end of the heat conductor is arranged at the suction port, and the other end is arranged adjacent to the fan.

[0011] In a specific embodiment, the air suction channel extends in a vertical direction, and the heat conductive member includes a heat conductive pipe and a heat absorption pipe network. At one end of the air suction channel adjacent to the suction port, one end of the heat conductive pipe is coiled along the inner wall of the device body forming the air suction channel, and the heat absorption pipe network is arranged on the inner wall of the device body forming the air suction channel, and at least part of the aerosol entering the air suction channel passes through the heat absorption pipe network, and the heat absorption pipe network is connected to the heat conductive pipe, and the heat conductive pipe and / or the heat absorption pipe network contain the heat exchange material.

[0012] In a specific embodiment, in the vertical direction, the height of the cooling space is greater than the height of the heat exchange passage.

[0013] In a specific embodiment, the air intake device also includes a driving member, and the driving end of the driving member is arranged corresponding to the heat exchange passage and / or the cooling space. When the driving member is working, the heat exchange material flows between the heat exchange passage and the cooling space under the drive of the driving member.

[0014] In a specific embodiment, the air intake device further includes a control component, the control component signal is connected to the driving component, when the control component detects that the temperature difference between the cooling space and the heat exchange passage is greater than a specified parameter, the control component controls the driving component to operate.

[0015] The beneficial effects of the present application include: by arranging a heat exchange passage on the inner wall of the suction channel, and using a heat exchange material to connect the heat exchange passage with the cooling space in the environmental cooling component by heat transfer, the heat exchange material is used to absorb the temperature of the aerosol in the suction channel, and conducts it to the cooling space connected to the heat exchange passage, so that the ambient temperature lower than the aerosol temperature in the suction channel is used to cool the heat exchange material, and the ambient temperature is used to cool the aerosol in the suction channel, so that the oil fume therein can be cooled and condensed, thereby effectively reducing the oil fume content in the aerosol. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the assembly cross-sectional structure of the air intake device provided by the present invention;

[0018] Figure 2 A schematic diagram of the structure of the air intake device provided by the present invention;

[0019] Figure 3 A schematic diagram of the structure of the condensation network, input pipe, output pipe, and heat conducting member of the air intake device provided by the present invention;

[0020] Figure 4 A schematic cross-sectional view of the coiled pipeline of the air intake device provided by the present invention connected to the input pipe;

[0021] Figure 5 for Figure 4 Schematic diagram of the enlarged structure of the middle B area;

[0022] Figure 6 A partial cross-sectional structural schematic diagram of the coiled pipeline of the air intake device provided by the present invention connected to the condensation network;

[0023] Figure 7 A schematic cross-sectional view of the coiled pipeline of the air intake device provided by the present invention connected to the condensation network;

[0024] Figure 8 Another partial cross-sectional structural schematic diagram of the coiled pipeline of the air intake device provided by the present invention connected to the condensation network;

[0025] Fig. 9 for Figure 8 Schematic diagram of the enlarged structure of the A area in the middle;

[0026] Fig.10Another cross-sectional structural schematic diagram of the coiled pipeline of the air intake device provided by the present invention connected to the condensation network;

[0027] Fig.11 Another cross-sectional structural schematic diagram of the coiled pipeline of the air intake equipment provided by the present invention connected to the condensation network.

[0028] Description of reference numerals:

[0029] 1. Air suction equipment; 2. Equipment body; 21. Air suction channel; 211. Inlet; 22. Heat exchange passage; 23. Condensation network; 24. Input pipe; 25. Output pipe; 26. Heat conducting member; 261. Heat conducting pipe; 261a. Coiled portion; 261b. Vertical portion; 261c. Second connecting portion; 262. Heat absorbing pipe network; 27. Fan; 28. Shell; 281. Outer shell; 282. Inner shell; 29. ​​Coiled pipeline; 291. First connecting portion; 3. Environmental cooling member; 31. Cooling space; 4. Heat exchange material; 5. Driving member; 6. Control member; 7. Air outlet channel; 8. Environmental temperature zone. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] The terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.

[0032] References to "embodiments" or "implementations" herein mean that a particular feature, structure, or characteristic described in conjunction with the embodiments or implementations may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive of other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0033] When heating food, oil smoke with a temperature higher than the ambient temperature is usually produced. Oil smoke is a black substance produced by incomplete combustion of oil. It is very sticky and difficult to clean after condensation. It also contains a variety of harmful substances, such as acrolein, benzene, formaldehyde, crotonaldehyde, volatile nitrosamines, etc. Once inhaled, it will cause irreversible damage to the cook's body. Therefore, in the kitchen, a range hood is usually installed for the stove to reduce the amount of oil smoke inhaled by the cook.

[0034] At present, common range hoods use the suction channel to inhale aerosols from the room. When passing through the suction channel, the aerosols exchange heat with the environment and naturally cool down. Part of the oil smoke condenses in this process, which can make the aerosols discharged to the outside environment cleaner and reduce the pollution to the outside world. However, when heating food, the temperature in the suction channel will also increase significantly, and the temperature difference with the aerosol is small, resulting in the natural cooling effect of removing oil smoke is not obvious.

[0035] In order to improve or solve the above technical problems, the inventors of the present application have proposed at least the following embodiments after long-term research.

[0036] See also Figure 1 , Figure 1 Schematic diagram of the assembly cross-sectional structure of the air intake device provided by the present invention. The embodiment of the present application provides an air intake device 1 for inhaling aerosols including oil smoke. The air intake device 1 may include a device body 2, an environmental cooling component 3, and a heat exchange material 4. An air suction channel 21 is provided in the device body 2, and a heat exchange passage 22 is also formed in the inner wall of the device body 2 on the side facing the air suction channel 21. A cooling space 31 is formed inside the environmental cooling component 3, and the cooling space 31 is connected to the heat exchange passage 22. The heat exchange material 4 is accommodated in the heat exchange passage 22 and / or the cooling space 31.

[0037] Through the structure provided in this embodiment, the air intake device 1 is provided with a heat exchange passage 22 on the inner wall of the air intake passage 21, and the heat exchange passage 22 can be connected to the cooling space 31 in the environmental cooling component 3 by heat transfer through the heat exchange material 4, and then the temperature of the aerosol in the air intake passage 21 is absorbed by the heat exchange material 4, and then the temperature is transferred to the cooling space 31 connected to the heat exchange passage 22. The ambient temperature near the environmental cooling component 3 is lower than the temperature of the aerosol in the air intake passage 21, so the heat exchange material 4 can be cooled in the cooling space 31, so that the ambient temperature is used to cool the aerosol in the air intake passage 21, so that the oil smoke therein can be cooled and condensed, thereby effectively reducing the oil smoke content in the aerosol, improving the oil smoke removal effect of the air intake device 1, and making the aerosol after passing through the air intake passage 21 cleaner, reducing the pollution to the subsequent parts of the air intake device 1 and even the environment.

[0038] Among them, the environmental cooling component 3 can be set in the environmental temperature zone 8, and the environmental temperature zone 8 can be the wall of the house, the external environment and other areas away from the cooking area. The ambient temperature of these areas is significantly lower than the temperature of the cooking zone, so that the heat exchange material 4 heated in the heat exchange passage 22 can be effectively cooled to achieve the heat dissipation effect.

[0039] like Figure 1 As shown, an air outlet channel 7 may also be formed in the air suction device 1, and the air outlet channel 7 is connected to the end of the air suction channel 21 away from the suction port 211, and is used to discharge the aerosol. After the aerosol flows through the air suction channel 21 and the air outlet channel 7, its temperature has been significantly reduced, and the oil smoke will also condense as the aerosol is cooled. The aerosol with a low oil smoke content can be discharged to the outside through the end of the air outlet channel 7 away from the air suction channel 21, or discharged back into the room to balance the indoor and outdoor air pressures.

[0040] See also Figure 2 , Figure 2 A schematic diagram of the structure of the air suction device provided by the present invention. In one embodiment of the present application, the device body 2 may include a condensation net 23, an input pipe 24 and an output pipe 25. The two ends of the input pipe 24 and the output pipe 25 are respectively connected to the cooling space 31 and the heat exchange passage 22, and the heat exchange passage 22 is specifically formed in the condensation net 23. At least part of the aerosol entering the air suction channel 21 can pass through the condensation net 23, so that the heat exchange material 4 can enter the heat exchange passage 22 from the cooling space 31 through the input pipe 24, and then be output from the heat exchange passage 22 to the cooling space 31 through the output pipe 25. The heat exchange passage 22 is arranged in the condensation net 23, and the aerosol passing through the condensation net 23 can be cooled, so that part of the oil smoke in the aerosol condenses on the condensation net 23, thereby achieving the effect of reducing the oil smoke content in the aerosol.

[0041] In an embodiment of the present application, the number of condensation nets 23 can be multiple, and the multiple condensation nets 23 can be arranged perpendicular to the extension direction of the air suction channel 21 and one by one along the air suction channel 21. Therefore, by using the multiple condensation nets 23 arranged layer by layer, the aerosol is cooled multiple times during the process of passing through the air suction channel 21, thereby achieving the effect of improving the heat dissipation effect of the air suction channel 21. In addition, the oil fume in the aerosol is condensed multiple times, which can further reduce the oil fume content in the aerosol, thereby achieving the purpose of improving the oil fume removal effect of the air suction device 1.

[0042] In one embodiment of the present application, a suction port 211 connected to the suction channel 21 may be formed on the device body 2, and the heat exchange passage 22 is coiled around the inner wall of the device body 2 at one end of the suction channel 21 close to the suction port 211.

[0043] In order to inhale as much aerosol carrying oil smoke as possible, the suction port 211 on the device body 2 is generally arranged toward the cooking area where oil smoke is generated. Affected by the food heated in the cooking area, the aerosol that has just entered the air suction channel 21 through the suction port 21 has a relatively high temperature, and the temperature difference between it and the ambient temperature is relatively large. Therefore, a coiled heat exchange passage 22 is arranged on the inner wall of the air suction channel 21 near the suction port 211, which can utilize the temperature difference between the ambient temperature and the aerosol temperature to achieve a relatively high heat exchange efficiency, thereby effectively cooling the aerosol that enters the air suction channel 21 through the suction port 211, improving the cooling effect of the aerosol, and further reducing the oil smoke content in the aerosol, thereby achieving the purpose of improving the oil smoke removal effect of the air suction device 1.

[0044] In one embodiment of the present application, the device body 2 includes a shell 28 and a coiled pipe 29, the heat exchange passage 22 is formed in the coiled pipe 29, and both ends of the coiled pipe 29 are connected to the cooling space 31. The shell 28 is surrounded to form the air suction channel 21, the suction port 211 is opened in the shell 28, and the coiled pipe 29 is coiled along the shell 28 at one end of the suction port 211. By setting the surrounding passage in the separately set coiled pipe 29, the heat exchange material 4 can flow along the coiled pipe 29, enter the heat exchange passage 22 from the cooling space 31 through one end of the coiled pipe 29, and then enter the cooling space 31 from the heat exchange passage 22 through the other end of the coiled pipe 29, so as to realize the flow of heat and achieve the purpose of cooling the aerosol by using the ambient temperature.

[0045] Optionally, the coiled pipe 29 and the condensation net 23 can be combined in the suction channel 21, and the coiled pipe 29 can be connected to the heat exchange passage 22 in the condensation net 23 to allow the heat exchange material 4 to move therein, thereby uniformly absorbing heat from multiple locations in the suction channel 21, improving the efficiency of cooling the aerosol, thereby further reducing the oil fume content in the aerosol, and achieving the purpose of improving the oil fume removal effect of the suction device 1.

[0046] Alternatively, if Figures 4 to 10As shown, the coiled pipe 29 can be a plurality of layers stacked along the air suction channel 21, and each layer of the coiled pipe 29 forms a "C" shape. The input pipe 24 and the output pipe 25 are respectively connected to the two ends of the "C" shape. The heat exchange material 4 enters the coiled pipe 29 through the input pipe 24, flows through the entire layer of the "C"-shaped coiled pipe 29, and flows to the cooling space 31 through the output pipe 25 connected to the other end of the coiled pipe 29 after absorbing heat. The multi-layer coiled pipes 29 can be connected through the first connecting portion 291, specifically, the multi-layer "C"-shaped coiled pipe 29 can be connected to one end of the input pipe 24 through the first connecting portion 291, and the multi-layer "C"-shaped coiled pipe 29 can be connected to the other end of the output pipe 25 through another first connecting portion 291. The two first connecting portions 291 are isolated, thereby guiding the flow direction of the heat exchange material 4, avoiding the effect of cross-flow, and improving the efficiency of cooling the aerosol.

[0047] Optionally, the condensing net 23 may be a two-layer pipe folded into a "U" shape, and one end of the two layers of pipes is connected to form a one-way heat exchange passage 22. The heat exchange material 4 flowing through the condensing net 23 may flow in through one layer, absorb heat, and then flow out through the other layer. In this embodiment, considering the density change of the heat exchange material 4, the channel connecting the input pipe 24 to pass the heat exchange material 4 to the condensing net 23 may be set in the lower layer of the condensing net 23. After the heat exchange material 4 is heated, it naturally moves to the upper layer, and then flows through the upper layer to the output pipe 25, so as to achieve the purpose of taking the heat out of the air suction channel 21.

[0048] It can be understood that the two ends of the condensation network 23 connecting the input pipe 24 and the output end can be directly connected to the two first connecting parts 291 of the coiled pipeline 29, thereby communicating with the heat exchange passage 22 in the first connecting parts 291 to form a complete heat exchange passage 22 structure.

[0049] Optionally, the shell 28 may include an outer shell 281 and an inner shell 282, and the outer shell 281 is arranged to form the air suction channel 21. The inner shell 282 is connected to the inner wall of the outer shell 281, and the inner shell 282 is used to wrap the coiled pipe 29. The outer shell 281 and the inner shell 282 are both provided with mounting holes corresponding to the input pipe 24 and the output pipe 25, so that the input pipe 24 and the output pipe 25 can pass through the air suction channel 21 and connect to the cooling space 31 of the ambient temperature zone 8. For the coiled pipe 29 with a multi-layer structure, once the oil smoke condenses directly on its surface, it is very difficult to clean or repair it. The inner shell 282 can help isolate the oil smoke from the coiled pipe 29, which is beneficial to the cleaning and maintenance of the air suction device 1.

[0050] Optionally, the coiled pipe 29, the condensation net 23, the first connecting part 291, and the inner shell 282 can all be made of materials with good thermal conductivity, which is beneficial to conduct the heat in the suction channel 21 to the heat exchange material 4 in the heat exchange passage 22, thereby improving the efficiency of heat exchange and improving the cooling effect of the suction equipment 1.

[0051] In addition to the coiled pipeline 29 , the heat exchange passage 22 may also be directly formed in the inner shell 282 . The inner shell 282 may be made of a material with good thermal conductivity to conduct the heat in the air suction channel 21 into the heat exchange passage 22 .

[0052] In one embodiment of the present application, the device body 2 may further include a heat conductor 26 and a fan 27. The device body 2 is formed with a suction port 211 connected to the suction channel 21. The fan 27 is arranged in the suction channel 21. One end of the heat conductor 26 is arranged at the suction port 211, and the other end is arranged adjacent to the fan 27.

[0053] In the process of passing through the air suction channel 21, the aerosol will exchange heat with the inner wall of the air suction channel 21, and its temperature will gradually decrease. Therefore, the temperature at the fan 27 is lower than the temperature at the suction port 211. However, when the temperature of the aerosol decreases, the oil smoke therein will be more inclined to condense, causing a lot of oil smoke to condense in the fan 27. The oil smoke is very sticky and thick, which will affect the normal operation of the fan 27, and when the oil smoke condenses on the fan 27, it will also cause secondary pollution to the subsequently inhaled aerosol, reducing the oil smoke removal effect of the air suction device 1. Therefore, in this embodiment, by setting a heat conductor 26, the heat near the suction port 211 is transferred to the vicinity of the fan 27, so as to increase the temperature near the fan 27, reduce the oil smoke condensed on the fan 27, and improve the availability of the air suction device 1.

[0054] See also Figures 3 to 11 , Figure 3 A schematic diagram of the structure of the condensation network, input pipe, output pipe, and heat conducting member of the air intake device provided by the present invention. Figure 4 A schematic cross-sectional structure diagram of a coiled pipeline connected to an input pipe of an air intake device provided by the present invention. Figure 5 for Figure 4 Schematic diagram of the enlarged structure of area A in the middle. Figure 6 A partial cross-sectional structural schematic diagram of the coiled pipeline of the air intake equipment provided by the present invention connected to the condensation network. Figure 7 A schematic cross-sectional structure diagram of a coiled pipeline of an air intake device connected to a condensation network provided by the present invention. Figure 8 Another partial cross-sectional structural schematic diagram of the coiled pipeline of the air intake equipment provided by the present invention connected to the condensation network. Fig. 9 for Figure 8 Schematic diagram of the enlarged structure of area B in the middle. Fig.10 Another cross-sectional structural schematic diagram of the coiled pipeline of the air intake equipment provided by the present invention connected to the condensation network. Fig.11 Another cross-sectional structural schematic diagram of the coiled pipe of the air suction device provided by the present invention connected to the condensation network. In one embodiment of the present application, the air suction channel 21 extends in the vertical direction, and the heat conducting member 26 includes a heat conducting pipe 261 and a heat absorbing pipe network 262.

[0055] At one end of the air suction channel 21 adjacent to the suction port 211, one end of the heat conducting pipe 261 may be arranged to be coiled along the inner wall of the device body 2 forming the air suction channel 21. The heat absorbing pipe network 262 is arranged on the inner wall of the device body 2 forming the air suction channel 21, and at least part of the aerosol entering the air suction channel 21 passes through the heat absorbing pipe network 262, which is connected to the heat conducting pipe 261, and the heat conducting pipe 261 and / or the heat absorbing pipe network 262 contain heat exchange material 4.

[0056] Through the structure provided in this embodiment, the heat absorbing pipe network 262 can be used to absorb the heat of the aerosol entering the suction channel 21 through the suction port 211, and the heat of the inner wall of the suction channel 21 can be absorbed by the heat conducting pipe 261, and then the heat can be conducted to the vicinity of the fan 27 by using the heat exchange material 4, thereby increasing the temperature near the fan 27 and reducing the probability of oil smoke condensing on the fan 27.

[0057] Specifically, the heat pipe 261 may include a coiled portion 261a, a vertical portion 261b, and a second connecting portion 261c. Figures 4 to 10 As shown, the coiled portion 261a can be a plurality of layers stacked along the air suction channel 21, and each layer of the coiled portion 261a forms a "C" shape. The number of vertical portions 261b is two, and the two vertical portions 261b are respectively connected to the two ends of the "C"-shaped coiled portion 261a, and the two vertical portions 261b are connected at one end close to the fan 27. After the heat exchange material 4 absorbs heat in the coiled portion 261a, it flows toward the fan 27 through one of the vertical portions 261b, and after releasing heat in the vertical portion 261b near the fan 27, it flows back to the "C"-shaped coiled portion 261a through the other vertical portion 261b, and flows through the "C"-shaped coiled portion 261a again to absorb heat and then flows toward the fan 27, thereby achieving the effect of using the high temperature near the suction port 211 to increase the temperature near the fan 27.

[0058] Among them, the multiple layers of winding parts 261a can be connected through the second connecting part 261c. Specifically, the multiple layers of "C"-shaped winding parts 261a can be connected to one end of a vertical part 261b through the second connecting part 261c, and the multiple layers of "C"-shaped winding parts 261a can be connected to the other end of another vertical part 261b through another second connecting part 261c. The two second connecting parts 261c are isolated, thereby guiding the flow direction of the heat exchange material 4, avoiding cross-flow, and improving the effect of the heating fan 27.

[0059] Optionally, one end of the vertical portion 261b located near the fan 27 may also form a coiled multi-layer structure, thereby evenly conducting heat to the vicinity of the fan 27 to achieve the purpose of improving the heating effect.

[0060] Optionally, the heat absorbing pipe network 262 may be an upper and lower layer of pipes folded into a "U" shape, and one end of the upper and lower layers of pipes is connected to form a one-way passage, and the heat exchange material 4 flowing through the heat absorbing pipe network 262 may flow in through one layer, absorb heat, and then flow out through the other layer. In this embodiment, considering the density change of the heat exchange material 4, the channel for introducing the heat exchange material 4 into the heat absorbing pipe network 262 may be set in the lower layer of the heat absorbing pipe network 262, and the heat exchange material 4 naturally moves to the upper layer after heating, and then flows out through the upper layer of the heat absorbing pipe network 262, so as to achieve the purpose of carrying heat to the vicinity of the fan 27.

[0061] It can be understood that the two ends of the heat absorption pipe network 262 connected to the heat conducting pipe 261 can be directly connected to the two second connecting parts 261c of the coiled part 261a, thereby communicating with the second connecting parts 261c and the two vertical parts 261b to form a complete channel for the heat exchange material 4 to circulate therein.

[0062] Optionally, the coiled portion 261a, the vertical portion 261b, the second connecting portion 261c and the heat absorption pipe network 262 can all be made of materials with good thermal conductivity, which is beneficial for conducting heat near the suction port 211 to the heat exchange material 4, and for the heat exchange material 4 to output heat to the vicinity of the fan 27, thereby improving the efficiency of heat exchange.

[0063] Optionally, considering the multi-layer structure of the coiled portion 261a, the inner shell 282 can also be wrapped around the outer periphery of the coiled portion 261a, and the inner shell 282 is provided with an opening for the vertical portion 261b to extend out, so that the vertical portion 261b can extend from near the suction port 211 to the fan 27 to conduct heat to the vicinity of the fan 27.

[0064] Compared with the coiled pipe 29 and the condensation network 23, the heat conducting pipe 261 and the heat absorbing pipe network 262 can be arranged closer to the suction port 211, so that the heat conducting pipe 261 and the heat absorbing pipe network 262 can absorb more heat, thereby effectively increasing the temperature near the fan 27 and reducing the probability of oil smoke condensing on the fan 27. In addition, the heat conducting pipe 261 and the heat absorbing pipe network 262 can perform initial cooling and condensation on the oil smoke entering the air suction channel 21 through the suction port 211, which can reduce the cooling pressure of the condensation network 23 and the coiled pipe 29, and improve the oil smoke removal efficiency of the air suction device 1.

[0065] Furthermore, in view of the setting of the vertical portion 261 b, the first connecting portion 291 may be formed with a recess to accommodate the vertical portion 261 b, so that the coiled pipeline 29 and the heat pipe 261 can form a regular outer contour, which is beneficial to the production and assembly of the air intake device 1.

[0066] Optionally, the condensation network 23 may include two collecting pipes and a plurality of "U"-shaped pipes. The collecting pipe is arranged at the position where the upper and lower layers of the condensation network 23 connect to the first connecting portion 291, and a plurality of "U"-shaped pipes are arranged in parallel to connect the two collecting pipes of the upper and lower layers, and both ends of each "U"-shaped pipe are respectively connected to the two collecting pipes. The heat exchange material 4 input into the condensation network 23 enters one of the collecting pipes, and is then divided into a plurality of "U"-shaped pipes arranged in parallel. After flowing through the "U"-shaped pipes, the heat exchange material 4 is collected in another collecting pipe, and flows to the output pipe 25 through the collecting pipe. It can be understood that for the heat absorption pipe network 262, a similar or identical structure can also be adopted to facilitate the inflow and outflow of the heat exchange material 4.

[0067] In one embodiment of the present application, in the vertical direction, the height of the cooling space 31 may be greater than the height of the heat exchange passage 22. The heat exchange material 4 may be a phase change heat exchange material 4, which is a highly efficient heat exchange material 4. After absorbing heat, the heat exchange material 4 undergoes a phase change, from a solid and / or liquid with poor fluidity to a liquid and / or gas with good fluidity. The liquid and / or gas with good fluidity can effectively carry heat and transfer it within the system of the heat exchange material 4, thereby realizing a heat exchange process.

[0068] The cooling space 31 is set higher than the heat exchange passage 22. The density of the heat exchange material 4 can be reduced after absorbing heat. The low-density high-temperature heat exchange material 4 spontaneously moves upward into the cooling space 31, while the high-density low-temperature heat exchange moves downward into the heat exchange passage 22 under the action of gravity. The heat exchange material 4 carries heat and flows spontaneously between the heat exchange pipeline and the cooling space 31, thereby achieving cooling of the aerosol and achieving the purpose of improving the fume removal effect of the air intake device 1.

[0069] In one embodiment of the present application, the air inhalation device 1 further includes a driving member 5, the driving end of the driving member 5 is arranged corresponding to the heat exchange passage 22 and / or the cooling space 31, and when the driving member 5 is working, the heat exchange material 4 flows between the heat exchange passage 22 and the cooling space 31 under the drive of the driving member 5. The driving member 5 can be used to drive the heat exchange material 4 to flow between the heat exchange passage 22 and the cooling space 31, promoting the heat exchange process between the two, thereby improving the cooling effect on the aerosol, further reducing the oil fume content in the aerosol, and achieving the purpose of improving the oil fume removal effect of the air inhalation device 1.

[0070] In an embodiment of the present application, the air intake device 1 may further include a control member 6, the control member 6 signal is connected to the driving member 5, and when the control member 6 detects that the temperature difference between the cooling space 31 and the heat exchange passage 22 is greater than a specified parameter, the control member 6 controls the driving member 5 to work. Through the setting of the control member 6, the driving member 5 can be selectively controlled to work according to the temperature difference between the cooling space 31 and the heat exchange passage 22, and then the heat exchange material 4 is driven to flow when the temperature difference between the two is large and the heat exchange efficiency is high, thereby reducing the energy consumption of the driving member 5 while ensuring the heat exchange effect, and effectively improving the availability of the air intake device 1.

[0071] Mentioning "embodiment" and "implementation method" in the present invention means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrases in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present invention can be combined with other embodiments. In addition, it should be understood that the features, structures or characteristics described in the various embodiments of the present invention can be arbitrarily combined to form another embodiment that does not deviate from the spirit and scope of the technical solution of the present invention, provided that there is no contradiction between them.

[0072] Finally, it should be noted that the above implementation modes are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above preferred implementation modes, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A suction device, characterized in that: For inhalation of aerosols including oil fumes, including: The device body (2) is provided with an air suction channel (21), and a heat exchange passage (22) is formed in the inner wall of the device body (2) on the side facing the air suction channel (21); An environmental cooling element (3) having a cooling space (31) formed therein, wherein the cooling space (31) is connected to the heat exchange passage (22); The heat exchange material (4) is contained in the heat exchange passage (22) and / or the cooling space (31).

2. The air suction device according to claim 1, characterized in that The device body (2) comprises a condensation net (23), an input pipe (24) and an output pipe (25); the two ends of the input pipe (24) and the output pipe (25) are respectively connected to the cooling space (31) and the heat exchange passage (22); the heat exchange passage (22) is formed in the condensation net (23); at least part of the aerosol entering the air suction channel (21) passes through the condensation net (23); the heat exchange material (4) can enter the heat exchange passage (22) from the cooling space (31) through the input pipe (24) and be output from the heat exchange passage (22) to the cooling space (31) through the output pipe (25).

3. The air suction device according to claim 2, characterized in that The number of the condensation nets (23) is multiple, and the multiple condensation nets (23) are perpendicular to the extension direction of the air suction channel (21) and are arranged one by one along the air suction channel (21).

4. The air suction device according to claim 1, characterized in that The device body (2) is formed with a suction port (211) connected to the air suction channel (21), and the heat exchange passage (22) is arranged in a coiled manner on the inner wall of the device body (2) at one end of the air suction channel (21) close to the suction port (211).

5. The air suction device according to claim 4, characterized in that The equipment body (2) includes a shell (28) and a coiled pipeline (29), the heat exchange passage (22) is formed in the coiled pipeline (29), both ends of the coiled pipeline (29) are connected to the cooling space (31), the shell (28) is surrounded to form the air suction channel (21), the suction port (211) is opened in the shell (28), and the coiled pipeline (29) is coiled along the shell (28) at one end of the suction port (211).

6. The air suction device according to claim 1, characterized in that The device body (2) further comprises a heat conducting member (26) and a fan (27); the device body (2) is formed with a suction port (211) connected to the air suction channel (21); the fan (27) is arranged in the air suction channel (21); one end of the heat conducting member (26) is arranged at the suction port (211), and the other end is arranged adjacent to the fan (27).

7. The air suction device according to claim 6, characterized in that The air suction channel (21) extends in a vertical direction, and the heat-conducting member (26) comprises a heat-conducting pipe (261) and a heat-absorbing pipe network (262). At one end of the air suction channel (21) adjacent to the suction port (211), one end of the heat-conducting pipe (261) is arranged in a coiled manner along the inner wall of the device body (2) forming the air suction channel (21), and the heat-absorbing pipe network (262) is arranged on the inner wall of the device body (2) forming the air suction channel (21). At least part of the aerosol entering the air suction channel (21) passes through the heat-absorbing pipe network (262), and the heat-absorbing pipe network (262) is connected to the heat-conducting pipe (261). The heat exchange material (4) is contained in the heat-conducting pipe (261) and / or the heat-absorbing pipe network (262).

8. The air suction device according to claim 1, characterized in that In the vertical direction, the height of the cooling space (31) is greater than the height of the heat exchange passage (22).

9. The air suction device according to claim 1, characterized in that The air intake device (1) further comprises a driving member (5), wherein a driving end of the driving member (5) is arranged corresponding to the heat exchange passage (22) and / or the cooling space (31), and when the driving member (5) is working, the heat exchange material (4) flows between the heat exchange passage (22) and the cooling space (31) under the drive of the driving member (5).

10. The air suction device according to claim 9, characterized in that The air intake device (1) further comprises a control component (6), wherein the control component (6) is connected to the driving component (5) by a signal, and when the control component (6) detects that the temperature difference between the cooling space (31) and the heat exchange passage (22) is greater than a specified parameter, the control component (6) controls the driving component (5) to operate.

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