A smoke machine auxiliary device and a range hood

Abstract

The present application relates to the oil fume purification technical field, especially to a kind of smoke machine auxiliary device and range hood.The smoke machine auxiliary device includes shell and auxiliary fan, and the shell is formed with the air guide chamber that is independently arranged with the air collecting cavity of range hood, and the shell is provided with air inlet and efficiency outlet, and the efficiency outlet is towards air collecting cavity;Auxiliary fan is arranged in air guide chamber, so that air current enters air guide chamber from air inlet and blows from efficiency outlet.In the cooking process, air enters air guide chamber from air inlet under the action of auxiliary fan, and is discharged from efficiency outlet to form air current towards air collecting cavity, and the oil fume that escapes upwards can be driven by the air current to blow towards air collecting cavity, to improve the effect of range hood.

Description

Technical Field

[0001] This invention relates to the field of oil fume purification technology, and in particular to an auxiliary device for a range hood and an oil fume extractor. Background Technology

[0002] Range hoods are typically installed above kitchen stoves to quickly remove and exhaust harmful fumes from the stove and cooking process outdoors, thus purifying the kitchen environment. They also condense and collect the fumes, reducing pollution, purifying the air, and providing safety features such as protection against poisoning and explosions.

[0003] With the diversification of user needs, small-sized range hoods such as side-suction and ultra-thin models are becoming increasingly popular. These smaller hoods are not only aesthetically pleasing but also take up little space. To improve the smoke extraction efficiency of these small range hoods, a smoke-gathering flap is typically installed in the smoke collection chamber. This flap tilts outwards to guide and collect the fumes, preventing them from drifting away. However, some fumes, as they drift upwards, escape the negative pressure zone at the inlet and continue to rise and spread outwards. Therefore, the smoke-gathering flap cannot effectively solve the problem of smoke pollution, and it can also obstruct the user's view when open, resulting in a poor user experience.

[0004] Therefore, there is an urgent need for an auxiliary device for smoke hoods to solve the above problems. Summary of the Invention

[0005] The first objective of this invention is to provide an auxiliary device for a range hood, which solves the problems of oil fumes drifting upwards and spreading, and the smoke-collecting flaps obstructing the user's view, thereby improving the smoke extraction effect and enhancing the user experience.

[0006] The second objective of this invention is to provide a range hood that, by applying the aforementioned auxiliary device, can improve the smoke extraction effect without installing a smoke-collecting flap, and will not obstruct the user's view, thus enhancing the user experience.

[0007] To achieve the above objectives, the following technical solution is provided:

[0008] In a first aspect, a range hood auxiliary device is provided for a range hood, the range hood including a smoke collection hood, the smoke collection hood having a smoke collection chamber therein, the range hood auxiliary device comprising:

[0009] The housing has an air guide cavity formed inside it, which is independently set from the smoke collection chamber. The housing is provided with an air inlet and an efficiency-enhancing air outlet, with the efficiency-enhancing air outlet facing the smoke collection chamber.

[0010] An auxiliary fan is provided inside the air guide cavity. The auxiliary fan enables airflow to enter the air guide cavity from the air inlet and be blown out from the enhanced air outlet.

[0011] As an optional solution for the auxiliary device of the smoke hood, the air guide cavity includes:

[0012] The main cavity is equipped with an auxiliary fan located inside the main cavity, and the air inlet is located above the main cavity.

[0013] The first guide portion is connected to the bottom of the main cavity and extends toward the smoke collection cavity, and the efficiency-enhancing air outlet is located at the end of the first guide portion near the smoke collection cavity.

[0014] As an optional solution for the auxiliary device of the smoke machine, the smoke hood is provided with an auxiliary air inlet that communicates with the smoke collection chamber. The first guide part includes an air outlet guide part, and the center line of the air outlet guide part extends in the same direction as the center line of the auxiliary air inlet. The airflow blown out from the enhanced air outlet can enter the smoke collection chamber from the auxiliary air inlet.

[0015] As an optional embodiment of the auxiliary device for the smoke hood, the length of the air outlet guide in its extending direction is c, the height of the efficiency-enhancing air outlet is b, the diffusion angle of the efficiency-enhancing air outlet is α, the height of the auxiliary air inlet is B, and the distance between the efficiency-enhancing air outlet and the auxiliary air inlet is S, satisfying the following: in,

[0016] As an optional solution for the auxiliary device of the smoke hood, the first guide section includes an air inlet guide section, the width of which gradually decreases along the air outlet direction.

[0017] As an optional solution for the auxiliary device of the smoke machine, the inner and outer contour lines of the longitudinal section of the air inlet guide are both arc curves.

[0018] As an optional solution for the range hood auxiliary device, the housing is also provided with an air curtain outlet, and the air guide cavity further includes a second guide portion. The second guide portion is connected to the bottom of the main cavity and is located on the side of the first guide portion away from the smoke collection cavity. The second guide portion extends toward the direction of the stove, and the air curtain outlet is located at the end of the second guide portion toward the direction of the stove.

[0019] As an optional solution for the auxiliary device of the range hood, the housing is provided with a temperature-adjustable air outlet, and the auxiliary device of the range hood also includes a temperature adjustment module. The temperature adjustment module is located on the cavity wall of the air guide cavity and covers the temperature-adjustable air outlet. The temperature adjustment module is used to adjust the temperature of the airflow blown out from the temperature-adjustable air outlet.

[0020] As an optional solution for the auxiliary device of the smoke hood, multiple temperature-controlled air outlets form a group of temperature-controlled air outlets, and two groups of temperature-controlled air outlets are respectively located on both sides of the housing in the left and right directions.

[0021] Secondly, a range hood is provided, including the range hood auxiliary device described above.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] The auxiliary device for a range hood provided by this invention includes a housing and an auxiliary fan. The housing forms an air guide cavity independently of the range hood's smoke collection chamber. The housing has an air inlet and an enhanced air outlet, with the enhanced air outlet facing the smoke collection chamber. The auxiliary fan is located within the air guide cavity, allowing airflow to enter the air guide cavity from the air inlet and exit from the enhanced air outlet. During cooking, air, under the action of the auxiliary fan, enters the air guide cavity from the air inlet and exits from the enhanced air outlet, forming an airflow that blows towards the smoke collection chamber. The upward-escaping fumes are carried towards the smoke collection chamber by this airflow, thereby improving the fume extraction effect.

[0024] The range hood provided by this invention, by applying the above-mentioned auxiliary device, can improve the smoke extraction effect without installing a smoke-gathering flap, and will not obstruct the user's view, thus enhancing the user experience. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of a range hood provided in an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of the first type of auxiliary device for a smoke machine provided in an embodiment of the present invention;

[0028] Figure 3 This is a cross-sectional schematic diagram of a first type of auxiliary device for a smoke hood provided in an embodiment of the present invention;

[0029] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0030] Figure 5 This is a schematic diagram of the air outlet of the first type of auxiliary device for a range hood provided in an embodiment of the present invention;

[0031] Figure 6A schematic diagram of the air outlet guide and the efficiency-enhancing air outlet provided in an embodiment of the present invention;

[0032] Figure 7 This is a schematic diagram of the structure of the second type of auxiliary device for a smoke hood provided in an embodiment of the present invention;

[0033] Figure 8 This is a cross-sectional schematic diagram of a second type of auxiliary device for a smoke hood provided in an embodiment of the present invention;

[0034] Figure 9 A schematic diagram of the auxiliary device for a range hood with a temperature-adjustable air outlet provided in an embodiment of the present invention in its working state;

[0035] Figure 10 This is a schematic diagram of the structure of a first temperature regulation module provided in an embodiment of the present invention;

[0036] Figure 11 A partial schematic diagram of a first type of temperature regulation module provided in an embodiment of the present invention;

[0037] Figure 12 This is a schematic diagram of the structure of a second temperature regulation module provided in an embodiment of the present invention.

[0038] Figure label:

[0039] 100. Auxiliary devices for the smoke hood; 200. Smoke hood; 201. Main air inlet; 202. Auxiliary air inlet; 300. Fan housing;

[0040] 1. Shell;

[0041] 10. Air guide cavity; 101. Main cavity; 102. First guide section; 1021. Air inlet guide section; 1022. Air outlet guide section; 103. Second guide section;

[0042] 11. L-shaped plate; 12. First guide plate; 1213. Enhanced air outlet; 13. Second guide plate; 14. Third guide plate; 1415. Air curtain outlet; 15. Fourth guide plate; 151. Connecting part; 1511. Air inlet; 152. Arc-shaped part; 1521. Temperature-regulating air outlet; 153. Extension part; 16. Mounting plate;

[0043] 2. Auxiliary fan;

[0044] 3. Temperature control module; 311. Fins; 3111. Pipe assembly; 312. Cooling and heating unit; 3121. Semiconductor; 3122. Cold end; 3123. Hot end; 321. Circulation pipe; 322. Compressor. Detailed Implementation

[0045] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0046] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] In the description of this invention, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used merely for distinction in description and have no special meaning.

[0049] Figure 1 A schematic diagram of the structure of the range hood provided in this embodiment is shown. Figure 1As shown, the range hood includes a smoke collection hood 200, a fan housing 300, and a range hood auxiliary device 100. The smoke collection hood 200 has a smoke collection chamber connected to the fan housing 300. The smoke collection hood 200 has a main air inlet 201 and an auxiliary air inlet 202. Cooking fumes enter the smoke collection chamber and then the fan housing 300 sequentially from the main air inlet 201 before being discharged. The range hood auxiliary device 100 guides the escaped cooking fumes to the auxiliary air inlet 202, thereby improving the range hood's smoke extraction effect. Compared to existing range hoods with smoke-collecting flaps, the range hood with the auxiliary device 100 provided in this embodiment solves the problems of cooking fumes drifting upwards and scattering in all directions, as well as the problem of smoke-collecting flaps obstructing the user's view and causing a poor user experience. It not only improves the smoke extraction effect but also improves the kitchen environment and enhances the user's cooking experience.

[0050] In other embodiments, the smoke hood 200 may only have a main air inlet 201. In this case, the height of the main air inlet 201 can be increased, in other words, the height of the main air inlet 201 can be increased. Figure 1 The main air inlet 201 and the auxiliary air inlet 202 are integrated into a larger air inlet, so that the airflow guided by the smoke machine auxiliary device 100 can enter the smoke collection chamber through the main air inlet 201, which can also achieve the above-mentioned effect.

[0051] Figure 2 A schematic diagram of the structure of the first type of auxiliary device for a smoke machine provided in this embodiment is shown. Figure 3 A cross-sectional schematic diagram of the first type of auxiliary device for a smoke hood provided in this embodiment is shown. Figures 2-3 As shown, the range hood auxiliary device 100 includes a housing 1 and an auxiliary fan 2. The housing 1 forms an air guide cavity 10, which is independently configured from the smoke collection cavity. The housing 1 is provided with an air inlet 1511 and an enhanced air outlet 1213. The auxiliary fan 2 is located within the air guide cavity 10. During operation, the auxiliary fan 2 draws air from the kitchen into the air guide cavity 10 through the air inlet 1511 and blows it out through the enhanced air outlet 1213, forming an airflow that blows towards the auxiliary air inlet 202. The upward-escaping fumes are driven by this airflow towards the auxiliary air inlet 202 and then enter the smoke collection cavity, thereby improving the fume extraction effect of the range hood.

[0052] An air inlet 1511 is located at the top of the air guide cavity 10 of the housing 1, and an enhanced air outlet 1213 is located at the bottom of the air guide cavity 10 of the housing 1, with the enhanced air outlet 1213 facing the smoke collection cavity. With this configuration, when the auxiliary fan 2 is working, it can draw air from above the housing 1 into the air guide cavity 10 and discharge it from the enhanced air outlet 1213. Under the guidance of the enhanced air outlet 1213, the air can be blown towards the auxiliary air inlet 202 of the smoke collection cavity, so that the upward-escaping fumes can be blown towards the auxiliary air inlet 202 under the action of the airflow, thereby improving the fume extraction effect of the range hood and preventing the fumes from spreading everywhere.

[0053] To facilitate the description of the positional relationship between the air inlet 1511 and the enhanced air outlet 1213, the air guide cavity 10 is divided into a main cavity 101 and a first guide 102. The auxiliary fan 2 is located in the main cavity 101, and the air inlet 1511 is located above the main cavity 101. The first guide 102 is connected to the bottom of the main cavity 101 and extends toward the smoke collection cavity. The enhanced air outlet 1213 is located at the end of the first guide 102 near the smoke collection cavity. The airflow blown out from the enhanced air outlet 1213 can enter the smoke collection cavity from the auxiliary air inlet 202 of the smoke collection cavity, thereby driving the upward-escaping oil fumes to enter the smoke collection cavity simultaneously.

[0054] The first guide section 102 is located at the bottom of the main cavity section 101 on the side away from the smoke collection chamber. This arrangement can reduce the impact of the oil fume airflow above the stove on the airflow blown out from the enhanced air outlet 1213 of the first guide section 102, ensuring that the airflow blown out from the enhanced air outlet 1213 can smoothly enter the auxiliary air inlet 202.

[0055] Continue as Figures 2-3 As shown, the housing 1 is also provided with an air curtain outlet 1415. The air curtain outlet 1415 extends toward the direction of the stove and is located on the side of the enhanced air outlet 1213 away from the smoke collection chamber. The airflow blown out from the air curtain outlet 1415 can form an air curtain, thereby preventing the oil fumes at the stove from spreading and playing a role in collecting smoke and improving the smoke extraction effect of the range hood.

[0056] The air guide cavity 10 also includes a second guide portion 103, which is connected to the bottom of the main cavity portion 101 and located on the side of the first guide portion 102 away from the smoke collection cavity. The second guide portion 103 extends toward the direction of the stove, and the air curtain outlet 1415 is located at the end of the second guide portion 103 toward the direction of the stove.

[0057] The second guide section 103 extends roughly vertically. Under the guidance of the second guide section 103, the airflow blown out from the air curtain outlet 1415 can form an air curtain that extends vertically, so as to better prevent the spread of oil fumes above the stove and improve the oil fume extraction effect of the range hood.

[0058] The housing 1 includes an L-shaped plate 11, a first guide plate 12, a second guide plate 13, a third guide plate 14, a fourth guide plate 15, and side plates. The L-shaped plate 11, the first guide plate 12, the second guide plate 13, the third guide plate 14, and the fourth guide plate 15 are spliced ​​to form a combined structure extending in the left-right direction of the housing 1. The two ends of the combined structure are sealed by the side plates. The first guide plate 12 is connected to the lower support arm of the L-shaped plate 11. The first guide plate 12 and the second guide plate 13 are spaced apart and surround to form a first guide portion 102. The gap between the first guide plate 12 and the second guide plate 13 forms an enhanced air outlet 1213. The third guide plate 14 is connected to the end of the second guide plate 13 away from the efficiency-enhancing air outlet 1213 and extends downward in the vertical direction. The fourth guide plate 15 is connected to the upper support arm of the L-shaped plate 11. The fourth guide plate 15 includes a connecting part 151, an arc-shaped part 152 and an extension part 153. The connecting part 151 is connected to the upper support arm of the L-shaped plate 11. The arc-shaped part 152 and the connecting part 151 cooperate with the L-shaped plate 11 to form the main cavity 101 of the air guide cavity 10. The extension part 153 cooperates with the third guide plate 14 to form the second guide part 103 of the air guide cavity 10.

[0059] Figure 4 It shows Figure 3 A magnified view of point A in the middle. (See image below.) Figure 4 Combination Figure 3 As shown, the first guide section 102 includes an air inlet guide section 1021 and an air outlet guide section 1022. The longitudinal cross-sectional width of the air inlet guide section 1021 gradually decreases along the air outlet direction. This arrangement, on the one hand, reduces airflow resistance and noise under the guidance of the air inlet guide section 1021; on the other hand, it also increases the airflow velocity from the enhanced air outlet 1213. The centerline of the air outlet guide section 1022 extends in the same direction as the centerline of the auxiliary air inlet 202. This arrangement ensures that, under the guiding effect of the air outlet guide section 1022, the airflow ejected from the enhanced air outlet 1213 can directly blow towards the auxiliary air inlet 202, reducing the dispersion of oil fumes during this process.

[0060] The inner and outer contours of the longitudinal section of the air inlet guide 1021 are both arc curves. With this configuration, due to the Coanda effect, the airflow entering from the air inlet 1511 can flow along the inner wall of the air inlet guide 1021, and under the guidance of the air inlet guide 1021, the high-speed airflow carries the oil fumes towards the auxiliary air inlet 202.

[0061] The inner contour of the air inlet guide 1021 can be a variable diameter arc curve, for example, it can be an Archimedes curve. This variable diameter arc curve contour can better guide the airflow, reduce airflow resistance, and increase airflow speed.

[0062] The width of the air outlet guide 1022 remains basically unchanged. The air outlet guide 1022, together with the enhanced air outlet 1213, can guide the airflow and increase the airflow ejection speed.

[0063] The length of the air outlet guide 1022 is greater than the height of the enhanced air outlet 1213. With this configuration, the air outlet guide 1022 and the enhanced air outlet 1213 can form a jet slit, which can increase the speed of the airflow blown out of the enhanced air outlet 1213, thereby ensuring that as much airflow as possible from the enhanced air outlet 1213 can enter the smoke collection chamber from the auxiliary air inlet 202.

[0064] Figure 4 In the middle, the first guide plate 12 includes a first air inlet and a first air outlet, and the second guide plate 13 includes a second air inlet and a second air outlet. Both the first air inlet and the second air inlet are guide curved plates, and the guide curved plate part is used to guide the airflow in the main cavity 101. Both the first air outlet and the second air outlet are guide straight plates, and the guide straight plate part cooperates to form an air outlet guide part 1022 with a basically unchanged width.

[0065] Figure 5 A schematic diagram of the air outlet of the first type of range hood auxiliary device 100 provided in this embodiment is shown. Figure 6 A schematic diagram of the air outlet guide 1022 and the enhanced air outlet 1213 provided in this embodiment is shown. Figure 6 Combination Figure 5 As shown, the distance between the enhanced air outlet 1213 and the auxiliary air inlet 202 is S, the height of the auxiliary air inlet 202 is B, the length of the air outlet guide 1022 in its extension direction is c, the height of the enhanced air outlet 1213 is b, and the diffusion angle of the enhanced air outlet 1213 is α, and the following conditions are met: in, This configuration increases the speed of the airflow from the enhanced air outlet 1213 and ensures that as much of the airflow from the enhanced air outlet 1213 as possible enters the smoke collection chamber through the auxiliary air inlet 202, thus improving the smoke extraction effect. For example, the length of the enhanced air outlet 1213 (the length of the range hood in the left-right direction) is the same as the length of the auxiliary air inlet 202 (the length of the range hood in the left-right direction), thereby ensuring that the high-speed airflow from the enhanced air outlet 1213 enters the auxiliary air inlet 202 precisely in the tangential direction.

[0066] The first type of range hood auxiliary device 100 provided in the above example, based on principles of fluid mechanics and aerodynamics, allows airflow to enter the air guide cavity 10 from the air inlet 1511 when the auxiliary fan 2 is activated, forming a high-speed airflow. Due to the Coanda effect, part of the airflow in the air guide cavity 10 flows along the first guide plate 12 and the second guide plate 13 of the first guide section 102. Under the guidance of the high-speed airflow, it is blown out at high speed from the enhanced air outlet 1213 and forms an airflow towards the auxiliary air inlet 202. The oil fumes escaping upwards on the stove can flow towards the auxiliary air inlet 202 under the action of this airflow, and then enter the smoke collection cavity through the auxiliary air inlet 202, improving the oil fume extraction effect. Part of the airflow in the air guide cavity 10 is blown out from the air curtain outlet 1415, forming an airflow barrier in front of the range hood auxiliary device 100, thereby preventing the oil fumes from drifting upwards and escaping in all directions, as well as various irritating odors generated during cooking.

[0067] Figure 7 A schematic diagram of the structure of the second type of auxiliary device for a smoke machine provided in this embodiment is shown. Figure 8 A cross-sectional schematic diagram of the second type of auxiliary device for a smoke hood provided in this embodiment is shown. Figures 7-8 As shown, the housing 1 is provided with an air inlet 1511 and an enhanced air outlet 1213. The difference between the second type of range hood auxiliary device 100 in this example and the first type of range hood auxiliary device 100 in the above example is that the second type of range hood auxiliary device 100 in this example does not include an air curtain outlet 1415, and the enhanced air outlet 1213 has a stop retracted state and a start extended state. That is, when the range hood is in the stop state, the enhanced air outlet 1213 retracts into the main cavity 101, and when the range hood is in the working state, the enhanced air outlet 1213 can extend out of the main cavity 101 and face the auxiliary air inlet 202.

[0068] The first guide section 102 is formed by a first guide plate 12, a second guide plate 13, and a side plate. The efficiency-enhancing air outlet 1213 is located at one end of the first guide section 102 near the smoke collection chamber. A mounting plate 16 is provided inside the housing 1. The first guide plate 12 is slidably mounted on the mounting plate 16, thereby allowing the first guide section 102 to slide relative to the mounting plate 16 and adjust the position of the efficiency-enhancing air outlet 1213.

[0069] Preferably, the range hood auxiliary device 100 further includes a sensor, a driver, and a controller, with the sensor and driver both communicatively connected to the controller. When the range hood is off and not in operation, the first guide portion 102 is hidden inside the main cavity 101. When the sensor detects oil fumes, or detects cooking on the stove, or detects that the range hood's ventilation mode has been activated, the controller can control the driver to slide the first guide plate 12 relative to the mounting plate 16 based on the sensor's detection results. This causes the first guide portion 102 to extend out of the main cavity 101, allowing the airflow blown from the enhanced air outlet 1213 to smoothly enter the auxiliary air inlet 202 of the smoke collection chamber.

[0070] Of course, in other embodiments, the range hood auxiliary device 100 may include both an adjustable-position enhancement air outlet 1213 and an air curtain outlet 1415. For specific structures, please refer to the first type of range hood auxiliary device 100 and the second type of range hood auxiliary device 100, which will not be described in detail here.

[0071] Whether it is the first type of range hood auxiliary device or the second type of range hood auxiliary device, the housing 1 of the range hood auxiliary device 100 can be provided with a temperature-controlled air outlet 1521, and the airflow blown out from the temperature-controlled air outlet 1521 is used to improve the kitchen environment.

[0072] Multiple temperature-controlled air outlets 1521 form a set of temperature-controlled air outlet groups, with two sets of temperature-controlled air outlet groups respectively located on the left and right sides of the housing 1. This arrangement allows the temperature-controlled air outlet groups to avoid the user, preventing the airflow from the temperature-controlled air outlets 1521 from blowing directly onto the user, thus improving the user's cooking experience. When the auxiliary fan 2 is working, part of the airflow within the air guide cavity 10 is blown out from the temperature-controlled air outlets 1521 on the left and right sides of the front end of the housing 1, avoiding the user and improving the temperature around the user, ensuring the user's comfort while working in the kitchen, and enhancing the user experience.

[0073] For example, multiple temperature-controlled air outlets 1521 in each group of temperature-controlled air outlets are spaced apart along the extension direction of the fourth guide plate 15 of the housing 1.

[0074] Regarding the first type of auxiliary device for a smoke machine, Figure 9 A schematic diagram of the auxiliary device for a range hood with a temperature-controlled air outlet 1521 provided in this embodiment is shown in its working state. Figure 9As shown, the temperature-adjustable air outlet 1521 is connected to the main cavity 101 and located above the efficiency-enhancing air outlet 1213 and the air curtain outlet 1415. During the operation of the range hood auxiliary device 100, after the air enters through the air inlet 1511, it is divided into three parts under the action of the efficiency-enhancing air outlet 1213, the air curtain outlet 1415, and the temperature-adjustable air outlet 1521. The airflow blown out from the efficiency-enhancing air outlet 1213 enters the smoke collection chamber through the auxiliary air inlet 202; the airflow blown out from the air curtain outlet 1415 forms an air curtain, effectively preventing the spread of oil fumes and odors towards the user, which can both improve the user's cooking experience and achieve the smoke collection effect; the temperature-adjustable air outlet 1521 is located above the efficiency-enhancing air outlet 1213 and the air curtain outlet 1415, and the airflow blown out from the temperature-adjustable air outlet 1521 is used to improve the kitchen environment.

[0075] Regarding the second type of range hood auxiliary device, during the operation of the range hood auxiliary device 100, after the airflow enters from the air inlet 1511, it is divided into two parts under the action of the efficiency-enhancing air outlet 1213 and the temperature-regulating air outlet 1521. The airflow blown out from the efficiency-enhancing air outlet 1213 enters the smoke collection chamber through the auxiliary air inlet 202; the airflow blown out from the temperature-regulating air outlet 1521 is used to improve the kitchen environment.

[0076] It should be noted that during actual cooking, even though the enhanced air outlet 1213 guides the fumes through airflow and the air curtain outlet 1415 forms an air curtain to prevent the fumes from spreading, a small amount of fumes will inevitably escape into the space outside the air curtain and enter the air guide cavity 10 through the air inlet 1511. To prevent the fumes entering the air guide cavity 10 from being blown out through the air curtain outlet 1415 or the temperature-adjustable air outlet 1521, a filter can be installed at the air inlet 1511 to filter the fumes. Alternatively, a filter can be installed at the air curtain outlet 1415 to filter the airflow blowing out from it, and at the temperature-adjustable air outlet 1521 to filter the airflow blowing out from it. Since most of the airflow blowing out from the enhanced air outlet 1213 enters the smoke collection cavity through the auxiliary air inlet 202, a filter is not required at the enhanced air outlet 1213.

[0077] In order to achieve temperature regulation of the airflow blown out of the temperature-regulating air outlet 1521, the auxiliary device 100 of the smoke hood also includes a temperature regulation module 3. The temperature regulation module 3 is located on the cavity wall of the air guide cavity 10 and covers the temperature-regulating air outlet 1521. The temperature regulation module 3 is used to regulate the temperature of the airflow blown out from the temperature-regulating air outlet 1521.

[0078] Figure 10 A schematic diagram of the structure of the first type of temperature regulation module 3 provided in this embodiment is shown. Figure 10As shown, the temperature regulation module 3 includes a cooling and heating unit 312 and fins 311. Both ends of the fins 311 are connected to the cooling and heating unit 312, and the fins 311 cover the temperature regulation air outlet 1521.

[0079] The shape of the fin 311 matches the shape of the inner wall of the temperature-regulating air outlet 1521 in the air guide cavity 10. Preferably, the temperature-regulating air outlet 1521 is located on the arc-shaped portion 152 of the fourth guide plate 15, and the overall shape of the fin 311 is an arc-shaped surface. The fin 311 can fit on the arc-shaped portion 152 of the fourth guide plate 15, which can not only facilitate the installation of the fin 311, but also make full use of the internal space of the air guide cavity 10 and reduce the resistance of the fin 311 to the airflow.

[0080] The fin 311 includes a tube assembly 3111, which comprises multiple tube structures arranged along the left-right direction of the shell 1. There are two sets of tube assemblies 3111, spaced apart vertically. The tube structures of the two sets of tube assemblies 3111 are staggered, meaning that in the left-right direction of the shell 1, the tube structure of the second layer is located between two adjacent tube structures of the first layer. This arrangement ensures sufficient heat exchange in the airflow.

[0081] Figure 11 A partial schematic diagram of the first type of temperature regulation module 3 provided in this embodiment is shown. Figure 11 As shown, the cooling / heating unit 312 is a semiconductor refrigeration chip, which includes a semiconductor 3121, a cold end 3122, and a hot end 3123. Both the cold end 3122 and the hot end 3123 can be ceramic plates. Cooling and heating are achieved by the semiconductor refrigeration chip absorbing and releasing heat at the cold end 3122 and the hot end 3123. The semiconductor refrigeration chip can be any existing semiconductor refrigeration chip, which will not be elaborated further here.

[0082] When cold air is needed, the thermoelectric cooler cools the air, and the airflow undergoes sufficient heat exchange through the fins 311, thus blowing out cold air. When hot air is needed, the exchange electrodes achieve the purpose of exchanging between the cold end 3122 and the hot end 3123, the thermoelectric cooler heats the air, and the airflow undergoes sufficient heat exchange through the fins 311, ultimately blowing out hot air.

[0083] Figure 12 A schematic diagram of the structure of the second temperature regulation module 3 provided in this embodiment is shown. Figure 12As shown, the temperature control module 3 includes a compressor 322 and a circulation pipe 321. The circulation pipe 321 is a serpentine pipe. The inlet of the circulation pipe 321 is connected to the outlet of the compressor 322, and the outlet of the circulation pipe 321 is connected to the inlet of the compressor 322. The circulation pipe 321 covers the temperature-controlled air outlet 1521. The inlet and outlet of the circulation pipe 321 are located on the same side of the circulation pipe 321. The compressor 322 is located at the end of the circulation pipe 321 near the second guide portion 103.

[0084] The shape of the circulation pipe 321 matches the shape of the inner wall of the temperature-controlled air outlet 1521 in the air guide cavity 10. The temperature-controlled air outlet 1521 is located on the arc-shaped portion 152 of the fourth guide plate 15. The overall shape of the circulation pipe 321 is arc-shaped, allowing it to fit snugly against the arc-shaped portion 152 of the fourth guide plate 15. This facilitates the installation of the circulation pipe 321 and fully utilizes the internal space of the air guide cavity 10, reducing the resistance of the circulation pipe 321 to the airflow. For example, the circulation pipe 321 consists of two rows of pipes arranged in a staggered manner to ensure sufficient heat exchange in the airflow.

[0085] Cooling and heating are achieved by the compressor 322 running to circulate the refrigerant in the refrigeration system to absorb and release heat, thereby producing a cooling or heating effect. When the airflow generated by the auxiliary fan 2 arrives at the temperature-regulating air outlet 1521, the airflow passes through the circulation pipe 321 to exchange heat and absorb and release heat, thereby achieving the function of regulating the temperature of the kitchen space and improving the user's cooking comfort.

[0086] Note that in the description of this specification, references to terms such as "an embodiment," "in other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0087] The above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A range hood auxiliary device for use in a range hood, the range hood comprising a smoke collection hood (200) having a smoke collection chamber therein, characterized in that, The front side wall of the smoke collection hood (200) has a main air inlet (201), and the smoke collection hood (200) is provided with an auxiliary air inlet (202) that communicates with the smoke collection chamber. The auxiliary device for the smoke machine includes: The housing (1) is located at the top front end of the smoke collection hood (200). The housing (1) forms an air guide cavity (10) that is independently set with the smoke collection chamber. The housing (1) is provided with an air inlet (1511) and an enhanced air outlet (1213). The air inlet (1511) is located at the top of the air guide cavity (10). The enhanced air outlet (1213) is located at the bottom of the air guide cavity (10) and faces the auxiliary air inlet (202) on the front side wall of the smoke collection hood (200). The airflow blown out from the enhanced air outlet (1213) can enter the smoke collection chamber from the auxiliary air inlet (202). An auxiliary fan (2) is provided inside the air guide cavity (10). The auxiliary fan (2) enables airflow to enter the air guide cavity (10) from the air inlet (1511) and be blown out from the enhanced air outlet (1213).

2. The auxiliary device for a smoke machine according to claim 1, characterized in that, The air guide cavity (10) includes: The main cavity (101) is provided with the auxiliary fan (2) inside the main cavity (101) and the air inlet (1511) is located above the main cavity (101); The first guide section (102) is connected to the bottom of the main cavity section (101) and extends toward the smoke collection cavity. The enhanced air outlet (1213) is located at one end of the first guide section (102) near the smoke collection cavity.

3. The auxiliary device for a smoke machine according to claim 2, characterized in that, The first guide section (102) includes an air outlet guide section (1022), the center line of which extends in the same direction as the center line of the auxiliary air inlet (202).

4. The auxiliary device for a smoke hood according to claim 3, characterized in that, The length of the air outlet guide (1022) in its extending direction is c, the height of the enhanced air outlet (1213) is b, the diffusion angle of the enhanced air outlet (1213) is α, the height of the auxiliary air inlet (202) is B, and the distance between the enhanced air outlet (1213) and the auxiliary air inlet (202) is S, and satisfies: ,in, .

5. The auxiliary device for a smoke hood according to claim 3, characterized in that, The first guide section (102) includes an air inlet guide section (1021), the width of which gradually decreases along the air outlet direction.

6. The auxiliary device for a smoke machine according to claim 5, characterized in that, The inner and outer contour lines of the longitudinal section of the air inlet guide (1021) are both arc curves.

7. The auxiliary device for a smoke hood according to claim 2, characterized in that, The housing (1) is also provided with an air curtain outlet (1415), and the air guide cavity (10) further includes a second guide part (103). The second guide part (103) is connected to the bottom of the main cavity part (101) and is located on the side of the first guide part (102) away from the smoke collection cavity. The second guide part (103) extends toward the direction of the stove, and the air curtain outlet (1415) is located at one end of the second guide part (103) toward the direction of the stove.

8. The auxiliary device for a smoke machine according to any one of claims 1-7, characterized in that, The housing (1) is provided with a temperature-adjustable air outlet (1521). The auxiliary device of the smoke machine also includes a temperature adjustment module (3). The temperature adjustment module (3) is located on the cavity wall of the air guide cavity (10) and covers the temperature-adjustable air outlet (1521). The temperature adjustment module (3) is used to adjust the temperature of the airflow blown out from the temperature-adjustable air outlet (1521).

9. The auxiliary device for a smoke hood according to claim 8, characterized in that, Multiple temperature-controlled air outlets (1521) form a set of temperature-controlled air outlet groups, and two sets of temperature-controlled air outlet groups are respectively located on both sides of the housing (1) in the left and right directions.

10. A range hood, characterized in that, Includes the auxiliary device for a smoke machine as described in any one of claims 1-9.

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