A range hood and a control method thereof

Abstract

The application discloses a range hood and a control method thereof, and relates to the technical field of kitchen appliances, and aims to solve the problem that oil dirt in an oil cup is prone to deterioration, and the range hood comprises a machine body, an air suction assembly, an oil cup and a condensation assembly, the machine body is internally provided with a smoke exhaust channel, and the machine body is provided with a communication hole in communication with the smoke exhaust channel; the air suction assembly is arranged in the machine body and is used for sucking oil fume into the smoke exhaust channel; the oil cup is arranged on the machine body and is located outside the smoke exhaust channel and is used for collecting oil; the condensation assembly is arranged on the machine body, the condensation assembly comprises a hot end and a cold end, the hot end is located in the smoke exhaust channel, the cold end penetrates through the communication hole and extends out of the smoke exhaust channel, the cold end is used for absorbing heat in the oil cup, and the heat on the cold end can be transmitted to the hot end. The application is used for discharging oil fume.

Description

Technical Field

[0001] This application relates to the field of kitchen appliance technology, and in particular to a range hood and its control method. Background Technology

[0002] Range hoods are widely used in daily life as a kitchen appliance. They remove cooking fumes from the kitchen to ensure clean air inside.

[0003] In related technologies, a range hood generally includes a body, a smoke collection hood, and an oil cup. The body has a smoke exhaust channel, the smoke collection hood is set at the smoke inlet of the smoke exhaust channel, and the oil cup is connected to the body to collect the oil dripping from the smoke collection hood. When a certain amount of oil accumulates in the oil cup, the oil cup is then cleaned.

[0004] However, as oil accumulates inside the oil cup, it may deteriorate, emitting an unpleasant odor and affecting the user experience. Summary of the Invention

[0005] This application provides a range hood and its control method to solve the problem of oil stains in the oil cup easily deteriorating.

[0006] In a first aspect, this application provides a range hood, including a body, an exhaust assembly, an oil cup, and a condenser assembly. The body has an exhaust channel inside, and a connecting hole is provided on the body to communicate with the exhaust channel. The exhaust assembly is disposed inside the body and is used to draw oil fumes into the exhaust channel. The oil cup is disposed on the body and located outside the exhaust channel, and is used to collect oil. The condenser assembly is disposed on the body and includes a hot end and a cold end. The hot end is located inside the exhaust channel, and the cold end passes through the connecting hole and extends outside the exhaust channel. The cold end is used to absorb heat from the oil in the oil cup, and the heat on the cold end can be transferred to the hot end.

[0007] The range hood in this application activates its exhaust system when fumes need to be removed, allowing the fumes in the kitchen to enter the exhaust duct and eventually be discharged outdoors, thus cleaning the fumes in the kitchen. As the fumes are discharged, the oily particles in the fumes adhere to the inner wall of the exhaust duct and the fume collection hood of the range hood, and eventually slide down into the oil cup.

[0008] Once a certain amount of oil accumulates in the oil cup, the condenser assembly activates, causing the cold end to absorb heat from the oil in the cup. This lowers the oil temperature, preventing it from spoiling and emitting unpleasant odors. Furthermore, the reduced oil temperature decreases its fluidity, preventing spills when the user needs to clean the oil cup or remove it, thus improving the user experience.

[0009] When the cold end absorbs heat from the oil, the heat can be transferred to the hot end. Since the hot end is located in the exhaust duct, the heat on the hot end can be dissipated by the airflow generated by the exhaust assembly and discharged outdoors. During the discharge process, the temperature of the air rises as the heat from the hot end dissipates into the air. Thus, when the air passes through the exhaust assembly, it can heat the oil accumulated on the exhaust assembly. After being heated, the oil becomes more fluid and slides off the exhaust assembly, eventually collecting in the oil cup, thereby cleaning the exhaust assembly.

[0010] The solution proposed in this application solves the problems of oil deterioration and oil spillage when the oil cup is removed by cooling the oil in the oil cup, while also cleaning the oil stains on the exhaust component.

[0011] In some embodiments of this application, the condensation assembly includes a semiconductor refrigeration chip.

[0012] Using a semiconductor refrigeration chip as a condensation component, the semiconductor refrigeration chip is small in size, can work without refrigerant, and is easy to install and set up.

[0013] In some embodiments of this application, the range hood also includes a radiator disposed within the exhaust duct for dissipating heat from the hot end.

[0014] The radiator is used to dissipate heat from the hot end, thereby accelerating the cooling efficiency of the oil in the oil cup.

[0015] In some embodiments of this application, the radiator includes a heat sink and a plurality of heat sink fins. The heat sink is fixedly connected to the hot end. The plurality of heat sink fins are all fixedly connected to the heat sink. The plurality of heat sink fins are arranged sequentially at intervals along a first direction. The cross section of the smoke exhaust channel is perpendicular to the smoke exhaust channel and forms an angle A with the first direction, where 0°≤A<90°.

[0016] Multiple heat dissipation fins are fixed to the hot end using a heat dissipation plate. The multiple heat dissipation fins are arranged at intervals so that the air in the exhaust duct can pass through the gaps between the multiple heat dissipation fins, so that the air can fully contact the heat dissipation fins, thereby achieving heat dissipation at the hot end.

[0017] In some embodiments of this application, each heat sink fin has a through hole, and multiple through holes are arranged sequentially along the second direction. The first direction and the second direction form an angle B, where 0°≤B<90°.

[0018] A through hole is made on each heat dissipation fin. When the air passes through the gap between two adjacent heat dissipation fins, some of the air can flow through the through hole to increase the contact area between the air and the heat dissipation fins, thereby further improving the heat dissipation efficiency of the air to the heat dissipation fins.

[0019] In some embodiments of this application, the range hood also includes a temperature sensor fixed to the body for detecting the temperature of the oil in the oil cup. When the temperature of the oil in the oil cup is lower than a preset temperature value, the condensation component stops working.

[0020] A temperature sensor is installed on the machine body to detect the temperature of the oil in the oil cup, so as to determine when the condenser assembly needs to stop working.

[0021] In some embodiments of this application, the range hood further includes a heat-conducting component, which is fixedly connected to the condensation assembly and at least partially in contact with the cold end. The heat-conducting component is in contact with the oil cup to conduct heat from the oil in the oil cup to the cold end.

[0022] By using heat-conducting components to transfer heat from the oil to the cold end, direct contact between the cold end and the oil can be avoided, ensuring the cleanliness of the cold end and eliminating the need for cleaning, while also ensuring its efficiency in absorbing heat from the oil.

[0023] In some embodiments of this application, the heat-conducting component includes a first heat-conducting plate, a second heat-conducting plate, and a third heat-conducting plate. The first heat-conducting plate is fixedly connected to the condensation assembly and is at least partially in contact with the cold end. The second heat-conducting plate is connected to the first edge of the first heat-conducting plate and extends into the oil cup, with the plate surface of the second heat-conducting plate in contact with the inner wall of the oil cup. The first edge and the second edge are opposite to each other and spaced apart.

[0024] When the condenser assembly starts working, the heat in the oil can be conducted to the first heat-conducting plate through the second and third heat-conducting plates, and then to the cold end, thereby cooling the oil in the oil cup and reducing its fluidity. Since the first and second edges are positioned opposite each other, the heat in the oil on the first edge side can be conducted to the first heat-conducting plate through the second heat-conducting plate, and the heat in the oil on the second edge side can be conducted to the first heat-conducting plate through the third heat-conducting plate. This allows for faster cooling of the oil and improves its cooling efficiency.

[0025] In some embodiments of this application, the exhaust assembly includes a dual-inlet fan, which includes a first inlet, a second inlet, and an outlet; the smoke exhaust duct includes a first sub-flue and a second sub-flue, the inlet end of the first sub-flue is connected to the outside of the unit, and the outlet end of the first sub-flue is connected to the first inlet; the inlet end of the second sub-flue is connected to the outside of the unit, the outlet end of the second sub-flue is connected to the second inlet, the outlet is connected to the outside, and the connecting hole is connected to the second sub-flue.

[0026] Dual-inlet fans are used to exhaust oil fumes, improving the efficiency of fume extraction. In this case, the second sub-flue is used to dissipate heat from the hot end.

[0027] Secondly, a control method for a range hood is provided. The range hood also includes a controller and a temperature sensor. The temperature sensor is used to detect the temperature of the oil in the oil cup. The controller is electrically connected to the temperature sensor and to a condenser assembly. The control method for the range hood includes:

[0028] The controller receives control commands;

[0029] The controller activates the condenser assembly according to the control commands.

[0030] If the temperature value detected by the temperature sensor is lower than the preset temperature value, the controller controls the condenser to stop working and determines the working time of the condenser.

[0031] If the working time exceeds the preset working time, the controller will prompt the user to clean the oil cup.

[0032] The range hood control method provided in this application allows the user to issue a control command when cooling of the oil in the oil cup is required. The controller receives the control command and controls the condensing component to start working according to the control command. After the condensing component has been working for a period of time, and the temperature value of the oil in the oil cup detected by the temperature sensor is lower than the preset temperature value, the condensing component is controlled to stop working, and the working time of the condensing component is determined. If the working time is longer than the preset working time, it indicates that there is a large amount of oil in the oil cup, and the cooling time is relatively long. Therefore, the user is prompted to clean the oil cup.

[0033] The range hood control method in this application not only controls the start and stop of the condensation component, but also monitors the amount of oil in the oil cup. Attached Figure Description

[0034] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of the present invention and do not constitute a limitation on the technical solutions of the present invention.

[0035] Figure 1 This is a schematic diagram of the external structure of a range hood provided in an embodiment of this application;

[0036] Figure 2 This is a cross-sectional schematic diagram of a range hood provided in an embodiment of this application;

[0037] Figure 3 This is a cross-sectional schematic diagram of a range hood provided in an embodiment of this application;

[0038] Figure 4 This is a schematic diagram of the external structure of a range hood provided in an embodiment of this application;

[0039] Figure 5 This is a schematic diagram of the external structure of a range hood provided in an embodiment of this application;

[0040] Figure 6 for Figure 3 A magnified view of a portion of point A in the middle;

[0041] Figure 7 An exploded view of a range hood provided in an embodiment of this application;

[0042] Figure 8 This is a cross-sectional schematic diagram of a range hood provided in an embodiment of this application;

[0043] Figure 9 A cross-sectional schematic diagram of the oil cup, condensation assembly, and heat-conducting component provided in an embodiment of this application;

[0044] Figure 10 An exploded schematic diagram of the oil cup, condensation assembly, and heat-conducting component provided in an embodiment of this application;

[0045] Figure 11 This is a schematic diagram of the external structure of a condensation assembly provided in an embodiment of this application;

[0046] Figure 12 This is a schematic diagram illustrating the working principle of the semiconductor cooling chip provided in the embodiments of this application;

[0047] Figure 13 A schematic diagram of another external structure of the condensation assembly provided in an embodiment of this application;

[0048] Figure 14 This is a cross-sectional schematic diagram of a range hood provided in an embodiment of this application;

[0049] Figure 15 A schematic diagram of the external structure of the oil cup, condenser assembly, and radiator provided in an embodiment of this application;

[0050] Figure 16 A schematic diagram of another external structure of the oil cup, condenser assembly, and radiator provided in an embodiment of this application;

[0051] Figure 17 This is a schematic diagram of the external structure of a range hood provided in an embodiment of this application;

[0052] Figure 18 This is a flowchart illustrating the control method for a range hood provided in an embodiment of this application.

[0053] Reference numerals: 10-Range hood; 100-Body; 110-Exhaust duct; 111-First sub-duct; 112-Second sub-duct; 10a-Connecting hole; 200-Exhaust assembly; 210-Dual inlet fan; 211-First inlet; 212-Second inlet; 213-Outlet; 300-Inner smoke hood; 310-Smoke guide plate; 400-Oil cup; 500-Condensation assembly; 510-Semiconductor cooling chip; 520-First heat conduction box; 530-Second heat conduction box; 540-Pump; 600-Heat conduction component; 610-First heat conduction plate; 620-Second heat conduction plate; 630-Third heat conduction plate; 700-Radiator; 710-Heat dissipation plate; 720-Heat dissipation fins; 721-Through hole; 800-Temperature sensor; 810-Sensor bracket. Detailed Implementation

[0054] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0055] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0056] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0057] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, when describing pipelines, the terms "connected" and "linked" as used in this application have the meaning of establishing electrical connection. The specific meaning needs to be understood in conjunction with the context.

[0058] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0059] Range hoods are widely used in daily life as a kitchen appliance. They remove cooking fumes from the kitchen to ensure clean air inside.

[0060] Based on this, please refer to Figure 1 , Figure 1 This is a schematic diagram of the external structure of a range hood 10 provided in an embodiment of this application. Specifically, please refer to... Figure 2 , Figure 2 This is a cross-sectional schematic diagram of a range hood 10 provided in an embodiment of the present application. It includes a body 100 and a ventilation assembly 200. The body 100 has a smoke exhaust channel 110 inside. The ventilation assembly 200 is disposed inside the body 100 to draw oil fumes into the smoke exhaust channel 110.

[0061] In this way, when it is necessary to remove the fumes from the kitchen, the exhaust fan 200 is activated to draw the fumes into the exhaust duct 110 and then exhaust them outdoors.

[0062] The exhaust assembly 200 may include a single-inlet fan. In this case, the single-inlet fan can be installed in the exhaust duct 110 to drive the fumes into the exhaust duct 110 from the inlet end and out from the outlet end of the exhaust duct 110. In this way, the fumes are exhausted outdoors using a single-inlet fan.

[0063] Alternatively, please see Figure 3 , Figure 3 This is a cross-sectional schematic diagram of a range hood 10 provided in an embodiment of this application. The exhaust assembly 200 includes a dual-inlet fan 210, which includes a first inlet 211, a second inlet 212 and an outlet 213. The exhaust duct 110 includes a first sub-duct 111 and a second sub-duct 112.

[0064] The inlet end of the first sub-flue 111 is connected to the outside of the body 100, and the outlet end of the first sub-flue 111 is connected to the first inlet 211; the inlet end of the second sub-flue 112 is connected to the outside of the body 100, the outlet end of the second sub-flue 112 is connected to the second inlet 212, and the outlet 213 is connected to the outside of the body 100. Specifically, the outlet 213 is suitable for connecting to the outside.

[0065] With the above configuration, when the dual-inlet fan 210 is working, since the inlet end of the first sub-flue 111 is connected to the outside of the body 100 and the outlet end of the first sub-flue 111 is connected to the first inlet 211, the kitchen fumes can be discharged to the outside through the first sub-flue 111, the first inlet 211 and the outlet 213 in sequence; at the same time, since the inlet end of the second sub-flue 112 is connected to the outside of the body 100 and the outlet end of the second sub-flue 112 is connected to the second inlet 212, the kitchen fumes can also be discharged to the outside through the second sub-flue 112, the second inlet 212 and the outlet 213 in sequence.

[0066] That is, the fumes can be discharged to the outside through two flues (first sub-flue 111 and second sub-flue 112). Since the inlet end of the first sub-flue 111 and the inlet end of the second sub-flue 112 are located at different positions, they can attract fumes from different locations, thereby improving the smoke exhaust efficiency.

[0067] Understandably, please continue reading. Figure 3 The first inlet 211 and the second inlet 212 are arranged alternately along the axial direction of the impeller of the double-inlet fan 210, so that the oil fumes can enter the double-inlet fan 210 from the opposite sides and then be discharged to the outside.

[0068] To form two independent first sub-flue 111 and second sub-flue 112, please refer to [link / reference needed]. Figure 4 , Figure 4 This is a schematic diagram of the external structure of a range hood 10 provided in an embodiment of this application. The range hood 10 also includes an inner smoke collection hood 300. The inner smoke collection hood 300 is disposed inside the body 100 and fixed at the first inlet 211. The inner smoke collection hood 300 divides the exhaust channel 110 into a first sub-smoke duct 111 and a second sub-smoke duct 112. The inner smoke collection hood 300 improves the smoke collection capacity at the first inlet 211, thereby improving the smoke exhaust efficiency. At the same time, the inner smoke collection hood 300 divides the exhaust channel 110 into the first sub-smoke duct 111 and the second sub-smoke duct 112, reducing the utilization rate of components.

[0069] For example, please continue reading Figure 3 This arrangement places the first inlet 211 closer to the user and the second inlet 212 further away from the user. In this configuration, the first sub-flue 111 plays a primary role in smoke extraction, accounting for approximately 80% of the total smoke extraction, while the second sub-flue 112 plays a secondary role, accounting for approximately 20% of the total smoke extraction.

[0070] Based on this, in order to further improve smoke extraction efficiency, please continue to refer to... Figure 4 And see also Figure 5 , Figure 5This is a schematic diagram of the external structure of a range hood 10 provided in an embodiment of this application. The range hood 10 also includes a smoke guide plate 310. The smoke guide plate 310 is disposed at the inlet end of the first sub-flue 111 (on the side of the inner smoke hood 300 away from the first inlet 211) and is hinged to the body 100. When it is necessary to exhaust fumes, the smoke guide plate 310 is rotated to increase the opening of the inlet end of the first sub-flue 111, thereby facilitating the intake of fumes into the first sub-flue 111. At the same time, due to the blocking effect of the smoke guide plate 310, the fumes can be prevented from rising, and the smoke guide plate 310 can improve the exhaust efficiency.

[0071] Based on this, please continue to refer to Figure 4 , Figure 5 The inlet end of the second sub-flue 112 ( Figure 5 The dotted box at the bottom is located at the inlet end of the first sub-flue 111. Figure 5 Below the dotted box at the top, when the fumes rise, they will first pass through the inlet of the second sub-flue 112, and then the remaining fumes will continue to rise to the inlet of the first sub-flue 111, achieving two-stage exhaust. This allows the fumes to enter the second sub-flue 112 and the first sub-flue 111 respectively, avoiding the concentration of fumes and improving exhaust efficiency.

[0072] Based on this, as the fumes are expelled, oily particles from the fumes will adhere to the inner fume hood 300 and the inner wall of the exhaust duct 110. Over time, these oily particles will accumulate and form oil droplets that drip downwards. To prevent oil from dripping onto the stovetop, please refer to... Figure 6 , Figure 6 for Figure 3 The enlarged view at point A shows that the range hood 10 also includes an oil cup 400. The oil cup 400 is set on the body 100, so that the oil cup 400 is located outside the exhaust duct 110. The oil cup 400 collects the oil dripping from the inner wall of the exhaust duct 110 and the inner smoke hood 300 to prevent the oil from dripping onto the stove and thus keep the stove clean.

[0073] It is understandable that, in order to facilitate the collection of oil using the oil cup 400, the oil cup 400 is generally placed at the lowest point of the machine body 100, that is, the place closest to the ground, so that the oil can flow into the oil cup 400.

[0074] In order to facilitate the cleaning of the oil in the oil cup 400, the oil cup 400 is movably connected to the machine body 100. For example, lifting lugs are provided at both ends of the oil cup 400 along its length, and the oil cup 400 is movably connected to the machine body 100 using the lifting lugs. In this way, when the oil cup 400 needs to be cleaned, the oil cup 400 is removed for cleaning, and then the oil cup 400 is reinstalled on the machine body 100.

[0075] Since oil collection is a process, and the oil cup 400 has a certain volume, users usually clean the oil cup 400 after a period of time, once a certain amount of oil has accumulated. As time goes on and external temperatures change, the oil in the oil cup 400 may deteriorate, thus emitting an odor and affecting the user experience.

[0076] Based on this, please refer to Figure 7 , Figure 7 This is an exploded view of a range hood 10 provided in an embodiment of this application. A connecting hole 10a is provided on the body 100. The range hood 10 also includes a condenser assembly 500. Please refer to [link / reference needed]. Figure 8 , Figure 8 This is a cross-sectional schematic diagram of a range hood 10 provided in an embodiment of this application. The condensing component 500 is disposed on the body 100. The condensing component 500 includes a hot end and a cold end. The hot end is located inside the exhaust channel 110, and the cold end passes through the connecting hole 10a and extends outside the exhaust channel 110. The cold end is used to absorb the heat in the oil liquid in the oil cup 400, and the heat on the cold end can be transferred to the hot end.

[0077] With the above settings, when a certain amount of oil accumulates in the oil cup 400, the condenser component 500 is activated. This allows the cold end to absorb heat from the oil in the oil cup 400, thereby lowering the temperature of the oil and preventing it from deteriorating and emitting odors. Furthermore, because the oil temperature decreases, its fluidity decreases, preventing spillage when the user needs to clean the oil in the oil cup 400 and remove it, thus improving the user experience.

[0078] When the cold end absorbs heat from the oil, the heat can be transferred to the hot end. Since the hot end is located inside the exhaust duct 110, the heat on the hot end can be dissipated by the wind generated by the exhaust assembly 200 and discharged outdoors. During the discharge process, the temperature of the wind will rise because the heat on the hot end is dissipated into the wind. Thus, when the wind passes through the exhaust assembly 200, it can heat the oil stains accumulated on the exhaust assembly 200. After being heated, the oil stains become more fluid and slide off the exhaust assembly 200, eventually collecting in the oil cup 400, thereby cleaning the exhaust assembly 200.

[0079] The solution proposed in this application solves the problems of oil deterioration and oil spillage when the oil cup 400 is removed by cooling the oil inside the oil cup 400, while also cleaning the oil stains on the exhaust assembly 200.

[0080] For details regarding the exhaust assembly 200 including dual inlet fans 210, please refer to [link / reference needed]. Figure 8Since the inlet end of the second sub-flue 112 is located below the inlet end of the first sub-flue 111, the second sub-flue 112 is extended from bottom to top in order to facilitate the internal space layout of the body 100. Since the oil cup 400 is located at the lowest point of the body 100, the second sub-flue 112 is closer to the oil cup 400. Therefore, the connecting hole 10a can be connected to the second sub-flue 112, that is, the hot end can be extended into the second sub-flue 112.

[0081] This reduces the difficulty of arranging the condenser assembly 500.

[0082] Additionally, to ensure that the temperature of the oil inside the oil cup 400 can be smoothly transferred to the cold end, please refer to... Figure 9 , Figure 9 This is a cross-sectional schematic diagram of the oil cup 400, condensation component 500 and heat-conducting component 600 provided in the embodiments of this application. The range hood 10 also includes a heat-conducting component 600, which is fixedly connected to the condensation component 500 and at least partially in contact with the cold end. The heat-conducting component 600 is in contact with the oil cup 400 and is used to conduct the heat in the oil liquid in the oil cup 400 to the cold end.

[0083] In this way, the heat in the oil can be transferred to the cold end using the heat-conducting component 600, which can avoid direct contact between the cold end and the oil, ensuring the cleanliness of the cold end and eliminating the need for cleaning, while also ensuring its efficiency in absorbing heat from the oil.

[0084] The cold end is fixedly connected to the heat-conducting component 600. This can be achieved by using adhesive or other techniques to bond the heat-conducting component 600 and the cold end together, which is simple and convenient. Alternatively, screws can be used to secure the heat-conducting component 600 and the cold end together, resulting in a more secure connection.

[0085] For example, please refer to Figure 10 , Figure 10 This is an exploded view of an oil cup 400, a condenser assembly 500, and a heat-conducting component 600 provided in an embodiment of this application. The heat-conducting component 600 includes a first heat-conducting plate 610, a second heat-conducting plate 620, and a third heat-conducting plate 630. The first heat-conducting plate 610 is fixedly connected to the condenser assembly 500 and is at least partially in contact with the cold end. The second heat-conducting plate 620 is connected to the first edge of the first heat-conducting plate 610 and extends into the oil cup 400, with its surface in contact with the inner wall of the oil cup 400. The third heat-conducting plate 630 is connected to the second edge of the first heat-conducting plate 610 and extends into the oil cup 400, with its surface in contact with the inner wall of the oil cup 400. The first and second edges are opposite to each other and spaced apart.

[0086] In this way, when the condenser assembly 500 starts working, the heat in the oil can be conducted to the first heat-conducting plate 610 through the second heat-conducting plate 620 and the third heat-conducting plate 630, and then to the cold end, so as to cool the oil in the oil cup 400, reduce the fluidity of the oil, and thus prevent the oil in the oil cup 400 from deteriorating and the oil from spilling out when the oil cup 400 is removed.

[0087] Since the first edge and the second edge are arranged opposite to each other, the heat in the oil on one side of the first edge can be conducted to the first heat-conducting plate 610 through the second heat-conducting plate 620, and the heat in the oil on one side of the second edge can be conducted to the first heat-conducting plate 610 through the third heat-conducting plate 630. This can cool the oil more quickly and improve the cooling efficiency of the oil.

[0088] It is understandable that, in order to better conduct the heat in the oil to the second heat-conducting plate 620 and the third heat-conducting plate 630, the surfaces of the second heat-conducting plate 620 and the third heat-conducting plate 630 are to be in complete contact with the inner wall of the oil cup 400, so that the heat on the oil cup 400 (which has thermal conductivity) can be quickly conducted to the second heat-conducting plate 620 and the third heat-conducting plate 630.

[0089] In other embodiments, the heat-conducting component 600 may also consist only of a first heat-conducting plate 610, which is fixedly connected to the condensation assembly 500. One side of the first heat-conducting plate 610 contacts the cold end, and the other side extends into the oil cup 400 and contacts the bottom surface of the oil cup 400. The first heat-conducting plate 610 conducts heat from the oil in the oil cup 400 to the cold end, thereby cooling the oil. The first heat-conducting plate 610 has a simple structure and is easy to design.

[0090] Of course, the heat-conducting component 600 can be omitted, allowing the cold end to directly contact the oil in the oil cup 400, or directly contact the oil cup 400. In this case, the oil cup 400 should be thermally conductive to directly absorb the heat from the oil to the cold end.

[0091] To ensure that heat can be transferred from the cold end to the hot end, please refer to... Figure 11 , Figure 11 This is a schematic diagram of the external structure of a condensing assembly 500 provided in an embodiment of this application. The condensing assembly 500 may include a semiconductor refrigeration chip 510. The semiconductor refrigeration chip 510 is used as the condensing assembly 500. The semiconductor refrigeration chip 510 is small in size, can work without refrigerant, and is simple to install and set up.

[0092] It is understandable that the thermoelectric cooler 510 requires direct current to operate; please refer to [link / reference]. Figure 12 , Figure 12This is a schematic diagram of the working principle of the thermoelectric cooler 510 provided in the embodiment of this application. The thermoelectric cooler 510 is formed by connecting at least one N-type semiconductor and at least one P-type semiconductor to form a thermocouple. When the thermoelectric cooler 510 is energized, when the current flows from the N-type semiconductor to the P-type semiconductor, the temperature decreases and becomes the cold junction. When the current flows from the P-type semiconductor to the N-type semiconductor, the temperature increases and becomes the hot junction, thereby realizing the transfer of energy.

[0093] In other embodiments, please refer to Figure 13 , Figure 13 This is a schematic diagram of another external structure of the condensing assembly 500 provided in the embodiments of this application. The condensing assembly 500 may also include a first heat conduction box 520, a second heat conduction box 530, a first pipe, a second pipe and a pump 540.

[0094] Refrigerant is contained in the first heat-conducting box 520 and the second heat-conducting box 530. A first pipe connects the first heat-conducting box 520 and the second heat-conducting box 530, and a second pipe connects the second heat-conducting box 530 and the first heat-conducting box 520. The first heat-conducting box 520, the first pipe, the second heat-conducting box 530 and the second pipe form a circulation loop. A pump 540 is connected to the first pipe or the second pipe, and the pump 540 drives the refrigerant to circulate between the first heat-conducting box 520, the first pipe, the second heat-conducting box 530 and the second pipe. The first heat-conducting box 520 is set in the smoke exhaust channel 110. The hot end includes the first heat-conducting box 520 and the cold end includes the second heat-conducting box 530, so that the second heat-conducting box 530 extends into the oil cup 400 or contacts the wall of the oil cup 400. It is understood that in this case, the oil cup 400 needs to be able to conduct heat.

[0095] With the above settings, when it is necessary to cool the oil in the oil cup 400, the pump 540 is started to drive the refrigerant to flow between the first heat conduction box 520 and the second heat conduction box 530. In this way, the refrigerant in the second heat conduction box 530 can absorb the heat in the oil in the oil cup 400, thereby lowering the oil temperature and reducing the fluidity of the oil, preventing it from deteriorating or spilling out when the oil cup 400 is removed.

[0096] Then, the refrigerant that has absorbed heat flows to the second heat conduction box 530. Under the action of the wind in the exhaust duct 110, it can carry away the heat in the refrigerant in the second heat conduction box 530. At the same time, the temperature of the wind will also rise. When the wind passes through the exhaust component 200, it can heat the exhaust component 200, soften the oil deposited on the exhaust component 200, and drip it into the oil cup 400, thus cleaning the exhaust component 200.

[0097] Based on this, in order to improve the heat dissipation efficiency of the hot end, please refer to... Figure 14 , Figure 14 This is a cross-sectional view of a range hood 10 provided in an embodiment of this application. The range hood 10 also includes a radiator 700, which is disposed in the exhaust channel 110 and is used to dissipate heat from the hot end.

[0098] With the above settings, the radiator 700 is used to dissipate heat from the hot end, thereby improving the heat dissipation efficiency of the hot end. The faster the heat dissipation of the hot end, the faster the energy transfer between the cold end and the hot end. This can improve the heat absorption efficiency of the cold end and cool the oil in the oil cup 400 more quickly.

[0099] It is understandable that when the exhaust assembly 200 includes dual inlet fans 210, the radiator 700 should be installed in the second sub-flue 112 to facilitate heat dissipation from the hot end of the radiator 700.

[0100] For example, please refer to Figure 15 , Figure 15 This is a schematic diagram of the external structure of the oil cup 400, condenser assembly 500, and radiator 700 provided in the embodiments of this application. The radiator 700 may include a heat sink 710 and a plurality of heat sink fins 720. The heat sink 710 is fixedly connected to the hot end; the plurality of heat sink fins 720 are all fixedly connected to the heat sink 710, and the plurality of heat sink fins 720 are along a first direction ( Figure 15 The smoke exhaust channels 110 are arranged at intervals along the X-direction, perpendicular to the smoke exhaust direction. The cross-section of the smoke exhaust channel 110 is ( Figure 15 The dashed box in the figure forms an angle A with the first direction, where 0° ≤ A < 90°.

[0101] With the above configuration, since multiple heat dissipation fins 720 are arranged sequentially at intervals along the first direction, and the first direction forms an angle A with the cross section of the exhaust channel 110, air will inevitably pass through the gap between two adjacent heat dissipation fins 720. This allows each heat dissipation fin 720 to dissipate heat more quickly, thereby achieving heat dissipation at the hot end more quickly, thus accelerating the heat exchange efficiency between the hot and cold ends and improving the cooling efficiency of the oil in the oil cup 400.

[0102] For example, A = 0°, meaning that the cross-section of the smoke exhaust channel 110 is parallel to the first direction along the smoke exhaust direction perpendicular to the smoke exhaust channel 110. This allows the air to move perpendicular to the first direction, so that when the air passes through the gap between adjacent heat dissipation fins 720, it will not collide with the heat dissipation fins 720, thus allowing it to pass through the gap between two adjacent heat dissipation fins 720 more smoothly. Therefore, at the same wind speed, the air volume loss is smaller, and the heat dissipation fins 720 can be cooled more quickly.

[0103] In some embodiments, in order to increase the fixing stability of the heat dissipation fins 720, the range hood 10 further includes a fixing bracket, which is fixedly connected to a plurality of heat dissipation fins 720 and fixedly connected to the heat dissipation plate 710. The fixing bracket improves the fixing stability between the heat dissipation fins 720 and the heat dissipation plate 710.

[0104] Based on this, please refer to Figure 16 , Figure 16 This is another external structural diagram of the oil cup 400, condenser assembly 500 and radiator 700 provided in the embodiments of this application. Each heat dissipation fin 720 has a through hole 721. Multiple through holes 721 are arranged sequentially along the second direction. The first direction and the second direction form an angle B, where 0°≤B<90°.

[0105] With the above configuration, multiple through holes 721 form an exhaust channel, so that a portion of the air can pass through the through holes 721 and pass through the heat dissipation fins 720, thereby allowing the air to come into more full contact with the heat dissipation fins 720, and thus further improving the heat dissipation efficiency of the heat dissipation fins 720.

[0106] Alternatively, the radiator 700 may consist of only a heat sink 710, which is in contact with the hot end. The heat sink 710 is placed in the exhaust channel 110 to dissipate heat from the hot end.

[0107] In some embodiments, for precise control of the operation of the condenser assembly 500, please refer to... Figure 17 , Figure 17 This is a schematic diagram of the external structure of a range hood 10 provided in an embodiment of this application. The range hood 10 also includes a temperature sensor 800, which is fixed on the body 100 and used to detect the temperature value of the oil in the oil cup 400. When the temperature value of the oil in the oil cup 400 is lower than the preset temperature value, the condensation component 500 stops working.

[0108] By setting a temperature sensor 800, the temperature of the oil in the oil cup 400 is detected to determine when the condenser assembly 500 needs to stop working, so as to avoid the condenser assembly 500 from working continuously.

[0109] The temperature sensor 800 can be installed in the exhaust channel 110. A transmission hole communicating with the exhaust channel 110 is opened on the body 100 so that the temperature sensor 800 can detect the oil temperature in the oil cup 400 through the transmission hole.

[0110] It is understandable that when the exhaust assembly 200 includes dual inlet fans 210, the temperature sensor 800 should be located in the second sub-flue 112.

[0111] Of course, the temperature sensor 800 can also be placed outside the machine body 100, or in any other suitable place, as long as it can detect the temperature of the oil in the oil cup 400.

[0112] Additionally, for easier installation of the temperature sensor 800, please refer to [link / reference needed]. Figure 17 The range hood 10 also includes a sensor bracket 810, which is fixed inside the body 100, and the temperature sensor 800 is fixed on the sensor bracket 810. The temperature sensor 800 is fixed on the body 100 using the sensor bracket 810. A suitable sensor bracket 810 can be designed according to actual needs to facilitate the installation of the temperature sensor 800.

[0113] Based on this, this application also provides a control method for a range hood 10. The range hood 10 further includes a controller and a temperature sensor 800. The temperature sensor 800 is used to detect the temperature value of the oil in the oil cup 400. The controller is electrically connected to the temperature sensor 800 and to the condenser assembly 500. Please refer to [link to relevant documentation]. Figure 18 , Figure 18 This is a flowchart illustrating the control method for the range hood 10 provided in this application embodiment. The control method for the range hood 10 includes:

[0114] S101: The controller receives control commands;

[0115] S102: The controller controls the condenser assembly 500 to start working according to the control command;

[0116] S103: If the temperature value detected by the temperature sensor 800 is lower than the preset temperature value, the controller controls the condenser assembly 500 to stop working and determines the working time of the condenser assembly 500.

[0117] S104: If the working time exceeds the preset working time, the controller prompts the user to clean the oil cup 400.

[0118] With the above settings, when the oil in the oil cup 400 needs cooling, the user issues a control command. The controller receives the control command and controls the condenser assembly 500 to start working according to the control command. After the condenser assembly 500 has been working for a period of time, and the temperature value of the oil in the oil cup 400 detected by the temperature sensor 800 is lower than the preset temperature value, the controller controls the condenser assembly 500 to stop working and determines the working time of the condenser assembly 500. If the working time is longer than the preset working time, it means that there is a lot of oil in the oil cup 400 and the cooling time is relatively long. Therefore, the user is prompted to clean the oil cup 400.

[0119] The control method of the range hood 10 in this application not only controls the start and stop of the condenser component 500, but also monitors the amount of oil in the oil cup 400 and prompts the user to clean the oil cup 400.

[0120] Users can issue control commands to the controller by pressing the control buttons on the display panel of the range hood 10.

[0121] In addition, the range hood 10 may also include a buzzer, which can be used to remind the user to clean the oil in the oil cup 400 when the working time exceeds the preset working time.

[0122] Alternatively, an indicator light can be displayed on the display panel to remind the user that the oil cup 400 needs to be cleaned.

[0123] For example, the working time of the condenser assembly 500 is 15 minutes, while the preset working time is 10 minutes. This means that the amount of oil in the oil cup 400 is already quite high and needs to be cleaned. In this case, the controller will control the buzzer to sound a reminder to the user that the oil cup 400 needs to be cleaned.

[0124] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A range hood, characterized in that, include: The machine body has an internal smoke exhaust channel, and the machine body has a connecting hole that communicates with the smoke exhaust channel; An exhaust assembly, located inside the machine body, is used to draw oil fumes into the exhaust duct; An oil cup, mounted on the machine body and located outside the exhaust duct, is used to collect oil. A condensing assembly is disposed on the body. The condensing assembly includes a hot end and a cold end. The hot end is located inside the exhaust channel, and the cold end passes through the connecting hole and extends outside the exhaust channel. The cold end is used to absorb heat from the oil in the oil cup, and the heat on the cold end can be transferred to the hot end. A heat-conducting component is fixedly connected to the condensation assembly and at least partially in contact with the cold end. The heat-conducting component is in contact with the oil cup and is used to conduct heat from the oil in the oil cup to the cold end. The heat-conducting component includes a first heat-conducting plate, a second heat-conducting plate, and a third heat-conducting plate. The first heat-conducting plate is fixedly connected to the condensation assembly and at least partially in contact with the cold end. The second heat-conducting plate is connected to a first edge of the first heat-conducting plate and extends into the oil cup, with its surface in contact with the inner wall of the oil cup. The first edge and the second edge are opposite to each other and spaced apart.

2. The range hood according to claim 1, characterized in that, The condensation assembly includes a semiconductor refrigeration chip.

3. The range hood according to claim 1 or 2, characterized in that, The range hood also includes a radiator, which is disposed in the exhaust duct and is used to dissipate heat from the hot end.

4. The range hood according to claim 3, characterized in that, The heat sink includes: The heat sink is fixedly connected to the hot end; Multiple heat dissipation fins are fixedly connected to the heat dissipation plate. The multiple heat dissipation fins are arranged sequentially at intervals along a first direction. The cross section of the smoke exhaust channel is perpendicular to the smoke exhaust channel and forms an angle A with the first direction, where 0°≤A<90°.

5. The range hood according to claim 4, characterized in that, Each of the heat dissipation fins has a through hole, and multiple through holes are arranged sequentially along the second direction. The first direction and the second direction form an angle B, where 0°≤B<90°.

6. The range hood according to claim 1 or 2, characterized in that, It also includes a temperature sensor, which is fixed to the body and is used to detect the temperature of the oil in the oil cup. When the temperature of the oil in the oil cup is lower than a preset temperature, the condensation component stops working.

7. The range hood according to claim 1 or 2, characterized in that, The exhaust assembly includes a dual-inlet fan, which includes a first inlet, a second inlet, and an outlet. The smoke exhaust duct includes: The first sub-flue has an inlet end connected to the outside of the machine body and an outlet end connected to the first inlet. The second sub-flue has an inlet end connected to the outside of the machine body, an outlet end connected to the second inlet, an outlet connected to the outside of the machine body, and a connecting hole connected to the second sub-flue.

8. A control method for a range hood according to any one of claims 1-7, characterized in that, The range hood also includes a controller and a temperature sensor. The temperature sensor is used to detect the temperature of the oil in the oil cup. The controller is electrically connected to the temperature sensor and to the condensation assembly. The control method of the range hood includes: The controller receives control commands; The controller controls the condensation component to start working according to the control command; If the temperature value detected by the temperature sensor is lower than the preset temperature value, the controller controls the condensation component to stop working and determines the working time of the condensation component; If the working time exceeds the preset working time, the controller prompts the user to clean the oil cup.

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