Range hood

Abstract

The present application is a kind of range hood, the range hood includes fan and the connecting part located fan upstream;Connecting part can be used to adapt different smoke cavities, different smoke cavities at least include first smoke cavity and different from first smoke cavity second smoke cavity;Fan has different operating modes matched with different smoke cavities, different operating modes at least include first operating mode and different from first operating mode second operating mode;When connecting part is connected with first smoke cavity adaptation, fan runs in first operating mode when working, when connecting part is connected with second smoke cavity adaptation, fan runs in second operating mode when working.The present application solves the technical problem that oil dirt is difficult to remove in smoke cavity and appearance is old after long-term use of range hood.

Description

Technical Field

[0001] This invention relates to the field of kitchen exhaust technology, and more particularly to a range hood. Background Technology

[0002] Range hoods have become an indispensable kitchen appliance in modern homes. Their main function is to remove cooking fumes during cooking, preventing them from accumulating in the kitchen and providing a comfortable cooking environment. Current range hoods draw in cooking fumes through vents, and after passing through an internal filter, the fumes are exhausted outdoors through exhaust vents and ductwork.

[0003] The drawbacks of existing range hoods are that grease accumulates inside the smoke collection hood during long-term use, which can easily produce odors and breed bacteria. Even with existing technologies (such as steam cleaning, resistance wire heating, and high-voltage electrostatic separation), it is impossible to effectively remove the grease. Moreover, after long-term use, the range hood will look outdated, resulting in a very poor user experience.

[0004] Therefore, based on years of experience and practice in related industries, the inventor proposes a range hood to overcome the shortcomings of existing technologies. Summary of the Invention

[0005] The purpose of this invention is to provide a range hood that can be adapted to different smoke extraction chambers and matches different operating modes when adapted to different smoke extraction chambers. It can solve the problem of oil stains without cleaning, bring users a new appearance experience, and ensure the range hood's smoke extraction effect.

[0006] The objective of this invention can be achieved through the following methods:

[0007] This invention provides a range hood.

[0008] The range hood includes a fan and a connecting part located upstream of the fan;

[0009] The connecting part can be used to adapt to different smoking chambers, and the different smoking chambers include at least a first smoking chamber and a second smoking chamber that is different from the first smoking chamber;

[0010] The fan has different operating modes that match the different smoke chambers, and the different operating modes include at least a first operating mode and a second operating mode that is different from the first operating mode;

[0011] When the connecting part is adapted and connected to the first smoke-absorbing chamber, the fan operates in the first operating mode.

[0012] When the connecting part is adapted and connected to the second smoke chamber, the fan operates in the second operating mode.

[0013] In a preferred embodiment of the present invention, the resistance upstream of the fan is different when the different smoking chambers are connected to the connecting part, and the different operating modes are matched with the different resistances upstream of the fan.

[0014] In a preferred embodiment of the present invention, the different operating modes include the operating modes of the wind turbine under different PQ curves. The first operating mode includes the operating mode of the wind turbine under the first PQ curve, and the second operating mode includes the operating mode of the wind turbine under the second PQ curve. The first PQ curve and the second PQ curve are different.

[0015] In a preferred embodiment of the present invention, the different smoking chambers further include a third smoking chamber different from the first smoking chamber and the second smoking chamber; the fan has a third operating mode different from the first operating mode and the second operating mode;

[0016] When the connecting part is adapted and connected to the third smoke chamber, the fan operates in the third operating mode.

[0017] In a preferred embodiment of the present invention, the different operating modes include the operating modes of the wind turbine under different PQ curves. The first operating mode includes the operating mode of the wind turbine under the first PQ curve, the second operating mode includes the operating mode of the wind turbine under the second PQ curve, and the third operating mode includes the operating mode of the wind turbine under the third PQ curve. The first PQ curve, the second PQ curve, and the third PQ curve are all different.

[0018] In a preferred embodiment of the present invention, the range hood includes a mode selection unit, the mode selection unit includes a triggering unit for triggering the different operating modes, the triggering unit includes at least a first triggering unit and a second triggering unit, the first triggering unit is used to trigger the first operating mode, and the second triggering unit is used to trigger the second operating mode.

[0019] In a preferred embodiment of the present invention, the mode selection unit includes a display screen located on the smoking chamber.

[0020] In a preferred embodiment of the present invention, the range hood includes an identification unit for distinguishing the different smoke extraction chambers.

[0021] In a preferred embodiment of the present invention, the range hood automatically selects an operating mode that matches the smoke extraction cavity after obtaining the type of the smoke extraction cavity based on the identification result of the identification unit.

[0022] In a preferred embodiment of the present invention, the identification unit includes a computer board for controlling the operation of the fan, and the display panels of the different smoking chambers include different identification tags. The identification tags are used to distinguish the different smoking chambers. When the display panels with different identification tags communicate with the computer board, the computer board distinguishes the different smoking chambers based on the different identification tags.

[0023] In a preferred embodiment of the present invention, the fan is at least partially located above the ceiling, the smoke extraction chamber includes a smoke collection hood located below the fan, one end of the connecting portion is connected to the air inlet of the fan, and the other end of the connecting portion is used to connect to different smoke collection hoods.

[0024] In a preferred embodiment of the present invention, the smoke hood is quick-connected to the connecting portion.

[0025] In a preferred embodiment of the present invention, the smoke hood includes a matching part connected to the connecting part, and the range hood includes a filter screen disposed on the matching part.

[0026] In a preferred embodiment of the present invention, the matching portion includes a first end near the connecting portion and a second end away from the connecting portion, and the filter is disposed near or located at the second end.

[0027] In a preferred embodiment of the present invention, the range hood includes a filter screen, which is disposed at the connecting portion.

[0028] In a preferred embodiment of the present invention, the connecting portion includes a third end near the smoke hood and a fourth end away from the smoke hood, and the filter screen is disposed near or located at the third end.

[0029] In a preferred embodiment of the present invention, the filter screen is arranged in a horizontal direction.

[0030] In a preferred embodiment of the present invention, the range hood includes a computer board for controlling the operation of the fan, the smoke collection hood includes a display screen, the computer board communicates with the display screen, and the computer board is disposed on the outer surface of the connecting part.

[0031] In a preferred embodiment of the present invention, the connecting part includes a flue and a connector, one end of the flue is connected to the fan, and the other end of the flue is connected to the connector, which is used to communicate with different smoke collection hoods.

[0032] In a preferred embodiment of the present invention, different smoke hoods each include different smoke collection chambers and identical matching portions located on the upper part of the smoke collection chambers and connected to the connecting portion.

[0033] In a preferred embodiment of the present invention, the matching part is provided with a mounting part, which is used to install the smoke collection hood on the wall, and the mounting part of the matching part of different smoke collection hoods is in the same position on the matching part.

[0034] In a preferred embodiment of the present invention, the first smoking chamber includes a top-side double-inhalation smoking chamber in which smoking ports are provided at both the top and the sides, and the second smoking chamber includes a top-inhalation smoking chamber in which a smoking port is provided only at the top or a side-inhalation smoking chamber in which a smoking port is provided only on the side.

[0035] In a preferred embodiment of the present invention, the different smoking chambers further include a third smoking chamber. The first smoking chamber includes a top-side double-inhalation smoking chamber with smoking ports on both the top and sides. The second smoking chamber includes a top-inhalation smoking chamber with a smoking port only on the top. The third smoking chamber includes a side-inhalation smoking chamber with a smoking port only on the side.

[0036] In a preferred embodiment of the present invention, the range hood is an integrated stove, the smoke extraction chamber includes a smoke collection hood located above the fan, one end of the connecting part is connected to the air inlet of the fan, and the other end of the connecting part is used to connect to different smoke collection hoods.

[0037] As described above, the features and advantages of the range hood of the present invention are: the connecting part upstream of the fan can be adapted to different smoke extraction chambers, and the fan has different operating modes that match different smoke extraction chambers. When the fan is connected to different smoke extraction chambers through the connecting part, the fan operates in the corresponding operating mode during operation, ensuring that the fan can still guarantee smoke extraction performance even when different smoke extraction chambers are set. Since different smoke extraction chambers can be replaced, the problem of oil accumulation can be solved without cleaning the oil stains in the smoke extraction chambers. Moreover, replacing different smoke extraction chambers can bring users a brand-new sensory experience, thereby improving the user experience. Attached Figure Description

[0038] The accompanying drawings are intended only to illustrate and explain the present invention and do not limit the scope of the invention.

[0039] in:

[0040] Figure 1 : This is a schematic diagram illustrating the matching principle between the fan's operating mode and the smoke extraction chamber in an embodiment of the present invention.

[0041] Figure 2: This is a structural diagram showing the matching of the fan and the smoke extraction chamber in an embodiment of the present invention.

[0042] Figure 3 This is one of the diagrams showing the relationship between the PQ curve of the fan and the resistance curve of the smoke chamber in an embodiment of the present invention.

[0043] Figure 4 This is the second diagram showing the relationship between the PQ curve of the fan and the resistance curve of the smoke chamber in an embodiment of the present invention.

[0044] Figure 5 : This is one of the structural schematic diagrams of the smoking chamber in an embodiment of the present invention.

[0045] Figure 6 This is a second schematic diagram of the structure of the smoking chamber in an embodiment of the present invention.

[0046] Figure 7 This is the third schematic diagram of the structure of the smoking chamber in an embodiment of the present invention.

[0047] Figure 8 This is a schematic diagram of the structure of the connecting part and the smoking chamber in an embodiment of the present invention, without assembly.

[0048] Figure 9 : This is a schematic diagram of the connecting part in an embodiment of the present invention.

[0049] Figure 10 :for Figure 9 A magnified view of a portion of position A in the middle.

[0050] Figure 11 : This is a diagram showing the location of the computer board in an embodiment of the present invention.

[0051] Figure 12 : This is a schematic diagram of the connector structure in an embodiment of the present invention.

[0052] Figure 13 : This is a diagram showing the installation location of the mounting part in an embodiment of the present invention.

[0053] Figure 14 :for Figure 13 A magnified view of the area at position B in the middle.

[0054] The reference numerals in the accompanying drawings of this invention are:

[0055] 1. Fan; 2. Connecting part;

[0056] 201. Smoke pipe; 202. Connector;

[0057] 2021. Connection position; 3. Smoking chamber;

[0058] 301. First smoking chamber; 302. Second smoking chamber;

[0059] 303. Third smoking chamber; 304. Display screen;

[0060] 305. Matching part; 306. Mounting part;

[0061] 4. Filter screen; 5. Mode selection unit;

[0062] 6. Computer board. Detailed Implementation

[0063] To provide a clearer understanding of the technical features, objectives, and effects of the present invention, specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0064] like Figure 1 , Figure 2 , Figure 5 , Figure 6 As shown, the present invention provides a range hood, which includes a fan 1 and a connecting part 2 located upstream of the fan 1. The connecting part 2 can be adapted to different smoke extraction chambers 3, and the fan 1 has different operating modes that match the different smoke extraction chambers 3. The different smoke extraction chambers 3 include at least a first smoke extraction chamber 301 and a second smoke extraction chamber 302 that is different from the first smoke extraction chamber 301. The different operating modes include at least a first operating mode and a second operating mode that is different from the first operating mode. When the connecting part 2 is adapted and connected to the first smoke extraction chamber 301, the fan 1 operates in the first operating mode. When the connecting part 2 is adapted and connected to the second smoke extraction chamber 302, the fan 1 operates in the second operating mode.

[0065] In this invention, the upstream connecting part 2 of the fan 1 can be adapted to different smoke extraction chambers 3, and the fan 1 has different operating modes that match different smoke extraction chambers 3. When the fan 1 is connected to different smoke extraction chambers 3 through the connecting part 2, the fan 1 operates in the corresponding operating mode during operation, ensuring that the fan 1 can still guarantee smoke extraction performance even when different smoke extraction chambers 3 are set. Since different smoke extraction chambers 3 can be replaced, the problem of oil accumulation can be solved without cleaning the oil stains in the smoke extraction chambers 3. Replacing different smoke extraction chambers 3 can bring a brand-new sensory experience to users, thereby improving the user experience.

[0066] It should be noted that the connection between the connecting part 2 and the smoke-absorbing chamber 3 (first smoke-absorbing chamber 301 or second smoke-absorbing chamber 302) can be either a direct connection between the connecting part 2 and the smoke-absorbing chamber 3, or a connection can be made by setting a pipe or other connecting parts between the connecting part 2 and the smoke-absorbing chamber 3, as long as the connection between the smoke-absorbing chamber 3 and the connecting part 2 can allow the fumes to be discharged.

[0067] In an optional embodiment of the present invention, the resistance upstream of the fan 1 differs when different smoke chambers 3 are connected to the connecting part 2, and different operating modes are matched with the different resistances upstream of the fan 1. Since different smoke chambers 3 may have different internal structures, the resistance to smoke inside each smoke chamber 3 will differ, resulting in different resistances upstream of the fan 1. To ensure that the air pressure P and air volume Q of the fan 1 can match the different resistances during operation, it is necessary to pre-set an operating mode that matches the different resistances upstream of the fan 1, ensuring that the smoke exhaust performance of the fan 1 is not affected by the different resistances. Of course, different smoke chambers 3 may also have different appearances (e.g., different styles), so that replacing different smoke chambers 3 can bring a completely new sensory experience to the user, thereby improving the user experience.

[0068] Specifically, such as Figure 3 As shown, the intersection of the PQ curve and the resistance curve is the operating point of fan 1. When fan 1 works in conjunction with the smoke extraction chamber a, both the air volume Q and noise level remain suitable. At this point, the range hood can be considered to be in its optimal operating state. However, when different smoke extraction chambers 3 are used without adjusting the operating mode of fan 1, it can be seen that after replacing smoke extraction chamber b, compared to when fan 1 is used with smoke extraction chamber a, the air volume Q of fan 1 decreases (from 11.5m³ / s). 3 The speed decreased to approximately 10.5 m / min. 3 The airflow Q directly affects the range hood's smoke extraction performance, impacting the user experience. After replacing the smoke extraction chamber c, it can be seen that compared to when fan 1 is paired with smoke extraction chamber a, the airflow Q of fan 1 increases (from approximately 11.5 m³ / min to 12.3 m³ / min). 3 While increasing the airflow Q (approximately / min) can improve the range hood's smoke extraction effect, the increased airflow velocity in the duct also leads to greater operating noise, impacting the user experience. In this case, the range hood's overall performance is not at its optimal state. Therefore, after replacing the smoke extraction chamber (i.e., the resistance upstream of fan 1 changes), a corresponding PQ curve needs to be matched to ensure that both airflow Q and noise remain at an appropriate level. Figure 4 As shown, when fan 1 works in conjunction with the smoke extraction chamber a, fan 1 operates according to the PQ curve a. At this time, at the intersection point W of the PQ curve a and the resistance curve of the smoke extraction chamber a, the air volume Q of fan 1 is 11.5 m³ / s. 3 Approximately / min; after replacing the smoke extraction chamber a with the smoke extraction chamber b, if the fan 1 operates according to the PQ curve a, the air volume Q of the fan 1 will decrease to 10.5m³ / min. 3The airflow rate is approximately 11.5 m³ / min. Therefore, fan 1 needs to be adjusted to operate according to the PQ curve b. At this point, the intersection point V of the PQ curve b and the resistance curve of the smoke extraction chamber b is the airflow rate Q of fan 1. 3 The airflow Q and noise level of the fan 1 remain at a suitable level even after the smoke chamber b is replaced, ensuring that the user still has the best experience.

[0069] Furthermore, different outer covers can be fitted over different smoking chambers 3. When replacing different smoking chambers 3, the smoking chamber 3 can be simply removed from the outer cover, and then the different smoking chambers 3 can be inserted into the outer cover for installation. This solves the problem of difficult-to-clean grease buildup in the smoking chamber 3 by directly replacing the smoking chamber 3 without cleaning the original smoking chamber. In addition, different outer covers can be replaced according to the user's needs without replacing the smoking chamber 3, providing the user with a completely new aesthetic experience.

[0070] In an optional embodiment of the present invention, different operating modes include operating modes of the fan 1 under different PQ curves. The first operating mode includes the operating mode of the fan 1 under the first PQ curve, and the second operating mode includes the operating mode of the fan 1 under the second PQ curve. The first PQ curve and the second PQ curve are different. The PQ curve of the fan 1 is a curve showing the relationship between the pressure value P and the air volume Q of the fan 1 during operation. Therefore, when the resistance upstream of the fan 1 changes, it is necessary to select an operating mode under the PQ curve that matches the current resistance to ensure that the air pressure P and air volume Q of the fan 1 can meet the requirements for exhausting oil fumes. Different PQ curves can be preset in the computer board 6 of the fan 1. The corresponding PQ curve can be directly called according to different smoke extraction chambers 3, so that the fan 1 operates according to the called PQ curve. Figure 4 As shown, when fan 1 works in conjunction with smoke chamber a, fan 1 operates according to PQ curve a. At this time, the intersection point W of PQ curve a and the resistance curve of smoke chamber a is [missing information]. After replacing smoke chamber a with smoke chamber b, the resistance changes. If fan 1 operates according to PQ curve a, the air volume Q of fan 1 decreases. Therefore, it is necessary to adjust the operating mode of the fan. After adjustment, fan 1 operates according to PQ curve b. The intersection point V of PQ curve b and the resistance curve of smoke chamber b is [missing information]. This ensures that after replacing smoke chamber b, the air volume Q and noise of fan 1 remain appropriate.

[0071] In an optional embodiment of the present invention, such as Figure 5As shown, the different smoke extraction chambers also include a third smoke extraction chamber 303, which is different from both the first smoke extraction chamber 301 and the second smoke extraction chamber 302. Simultaneously, the fan 1 has a third operating mode, which is different from both the first and second operating modes. When the connecting part 2 is adapted and connected to the third smoke extraction chamber 303, the fan 1 operates in the third operating mode. It should be noted that the connection between the connecting part 2 and the third smoke extraction chamber 303 can be either a direct connection or a connection via a pipe or other connecting component, ensuring that the connection between the third smoke extraction chamber 303 and the connecting part 2 allows for the exhaust of fumes.

[0072] Furthermore, the different operating modes include the operating modes of fan 1 under different PQ curves. The first operating mode includes the operating mode of fan 1 under the first PQ curve, the second operating mode includes the operating mode of fan 1 under the second PQ curve, and the third operating mode includes the operating mode of fan 1 under the third PQ curve. The first PQ curve, the second PQ curve, and the third PQ curve are all different.

[0073] Furthermore, such as Figures 5 to 7 As shown, the first smoking chamber 301 includes a top-side double-suction smoking chamber with smoking openings on both the top and sides; the second smoking chamber 302 includes a top-suction smoking chamber with a smoking opening only on the top; and the third smoking chamber 303 includes a side-suction smoking chamber with a smoking opening only on the side. The flues of the top-side double-suction smoking chamber, the top-suction smoking chamber, and the side-suction smoking chamber have different resistances. Therefore, the fan 1 needs to be adapted to three different operating modes (i.e., the first operating mode, the second operating mode, and the third operating mode) to respectively adapt to the three different smoking chambers 3. Of course, the type of smoking chamber is not limited to the top-side double-suction smoking chamber, the top-suction smoking chamber, and the side-suction smoking chamber; it can also be other types of smoking chambers. Similarly, the operating mode of the fan 1 is not limited to the first operating mode, the second operating mode, and the third operating mode; it can also be other operating modes. It is necessary to ensure that for each type of smoke extraction chamber, the fan 1 has at least one operating mode that is compatible with the currently set smoke extraction chamber, so as to ensure that the wind pressure P and air volume Q of the fan 1 during operation can match the resistance upstream of the fan 1, so as to achieve the purpose of not affecting the smoke extraction performance of the fan 1.

[0074] In an optional embodiment of the present invention, such as Figures 5 to 8As shown, the range hood includes a mode selection unit 5, which includes trigger units (not shown) for triggering different operating modes. Each trigger unit includes at least a first trigger unit and a second trigger unit. The first trigger unit triggers a first operating mode, and the second trigger unit triggers a second operating mode. Different trigger units are selected based on different smoke extraction chambers 3, thereby calling the pre-set PQ curves in the computer board 6 of the fan 1, so that the fan 1 operates according to different operating modes. Of course, the trigger unit may also include a third trigger unit for triggering a third operating mode of the fan 1, and other trigger units corresponding to triggering various other operating modes. The trigger units are set according to different operating modes of the fan 1 and different PQ curves pre-stored in the computer board 6 of the fan 1. Users can send a call command through the trigger units to directly call the PQ curve corresponding to the current smoke extraction chamber, completing the switching of the fan 1's operating mode. The operation is simple and requires no professional guidance; users can operate it themselves.

[0075] Furthermore, such as Figures 5 to 8 As shown, the mode selection unit 5 includes a display screen 304 located on the smoke chamber 3. The trigger unit can be, but is not limited to, buttons or a touch screen. The user can switch the operating mode of the fan 1 by manually selecting different trigger units. Of course, the trigger unit can also be a touch element, as long as it can achieve the purpose of switching the operating mode of the fan 1.

[0076] In another optional embodiment of the present invention, the range hood includes an identification unit for distinguishing different smoke extraction chambers. Based on the identification result of the identification unit, after obtaining the type of the smoke extraction chamber 3, the range hood automatically selects an operating mode matching the smoke extraction chamber 3. The identification unit can be, but is not limited to, a camera, which directly collects image information of different smoke extraction chambers 3, determines the model of the smoke extraction chamber 3 based on the image information, and thus matches different operating modes. Alternatively, the identification unit can be a radio frequency identification (RFID) device, which collects information from RFID tags set on different smoke extraction chambers 3 to determine the model of the smoke extraction chamber 3, thereby matching different operating modes. Compared to manually switching the operating mode of the fan 1 via a trigger unit, the identification unit can automatically collect the unique features of different smoke extraction chambers 3 to identify the current smoke extraction chamber, thus eliminating the need for manual operation by the user. After determining the current smoke extraction chamber compatible with the fan 1, the identification unit can automatically call the PQ curve corresponding to the current smoke extraction chamber, thereby achieving automatic switching of the fan 1's operating mode, improving automation, and providing a better user experience.

[0077] In this embodiment, as Figure 11As shown, the identification unit includes a computer board 6 for controlling the operation of the fan 1. A display panel is installed on the smoke extraction chamber 3. Different display panels for different smoke extraction chambers 3 include different identification labels. These labels can record information such as the model or part number of the smoke extraction chamber 3, or the model or part number of the display panel uniquely matching the smoke extraction chamber 3. Therefore, different smoke extraction chambers 3 can be distinguished by the identification labels. When a display panel with a different identification label communicates with the corresponding computer board 6, the computer board 6 distinguishes different smoke extraction chambers 3 based on the different identification labels, and then calls up the pre-set PQ curve corresponding to the smoke extraction chamber 3 according to the identified smoke extraction chamber 3. The communication method between the display panel and the computer board 6 can be wired or wireless. After the identification unit identifies the smoke extraction chamber 3, the PQ curve corresponding to the smoke extraction chamber 3 can be automatically matched by the range hood, or the matching can be manually triggered by the user (for example, only the matching PQ curve is displayed on the screen, but the user needs to manually trigger confirmation for successful matching).

[0078] Furthermore, different memory modules can be set within the computer board 6, each storing a different PQ curve. After the computer board 6 identifies different smoking chambers 3, it can control the circuit of the memory corresponding to the different smoking chambers 3 to be turned on, thereby outputting the preset PQ curve stored in the memory, so that the fan 1 can operate according to different operating modes.

[0079] In an optional embodiment of the present invention, the fan 1 is at least partially located above the ceiling, which not only reduces the amount of oil stains adhering to the fan 1 but also reduces indoor noise. The smoke extraction chamber 3 includes a smoke collection hood located below the fan 1. One end of the connecting part 2 is connected to the air inlet of the fan 1, and the other end of the connecting part 2 is used to connect to different smoke collection hoods. Different smoke collection hoods can be adapted through the connecting part 2, thereby facilitating the replacement of the smoke collection hood.

[0080] Furthermore, the smoke hood and the connecting part 2 are connected using a quick-connect method. For example, Figure 12 As shown, the smoke hood and the connecting part 2 can be connected by quick-connect bolts at the preset connection position 2021. Of course, the smoke hood and the connecting part 2 can also be connected by hooks or other means. The specific connection method is not limited here.

[0081] In an optional embodiment of the present invention, such as Figure 2 , Figures 5 to 7 , Figure 13 , Figure 14As shown, the fume hood includes a matching part 305 connected to the connecting part 2, and the range hood includes a filter screen 4, which is disposed within the matching part 305. Because the filter screen 4 is disposed within the matching part 305, a new filter screen can be replaced simultaneously when the fume hood is replaced, eliminating the need to clean the grease on the filter screen 4. This ensures the filter screen 4 effectively removes grease, extending the service life of the flue 201 and the fan 1. Furthermore, by placing the filter screen 4 on the fume hood, the amount of grease entering downstream of the filter screen 4 is significantly reduced, minimizing contamination of the fan 1 and the connecting part 2 connected to the fan 1, further extending the service life of the fan 1 and the connecting part 2.

[0082] Furthermore, such as Figure 2 , Figures 5 to 7 , Figure 13 , Figure 14 As shown, the matching part 305 includes a first end near the connecting part 2 and a second end away from the connecting part 2. The filter screen 4 is disposed near or located at the second end. When the replacement cycle of the fume hood and the filter screen 4 is inconsistent and the filter screen 4 needs to be replaced in advance, the filter screen 4 is closer to the lower part of the fume hood, making it easier to disassemble and assemble, and thus easier to replace the filter screen 4. In addition, the placement position of the filter screen 4 determines the area more heavily contaminated by oil (the upstream of the filter screen 4 is more heavily contaminated by oil, and the downstream of the filter screen 4 is less contaminated by oil). The lower the installation position of the filter screen 4, the longer the flue downstream of the filter screen 4, and the earlier the flue gas entering the fume hood can be filtered, thereby reducing the area contaminated by oil. Therefore, placing the filter screen 4 near or located at the second end can ensure that the number of components contaminated by oil is minimized and the length of the contaminated flue is minimized, thereby ensuring that more components have a longer service life.

[0083] In another alternative embodiment of the invention, such as Figures 8 to 10 , Figure 12 As shown, the range hood includes a filter screen 4, which is disposed within the connecting part 2. Because the filter screen 4 is disposed within the connecting part 2, it can be replaced or the grease on the filter screen 4 can be cleaned simultaneously with the replacement of the smoke collection hood, facilitating operation and ensuring good grease removal. Furthermore, when the replacement cycles of the smoke collection hood and the filter screen 4 are inconsistent, and the filter screen 4 needs to be replaced earlier, the smoke extraction chamber 3 does not need to be replaced; instead, the filter screen 4 can be removed and replaced from the connecting part 2.

[0084] Furthermore, the connecting part 2 includes a third end near the smoke hood and a fourth end away from the smoke hood. The filter screen 4 is located near or at the third end. After the smoke hood is removed, the position of the filter screen 4 makes it easier to disassemble and replace. In addition, since the connecting part 2 is a non-replaceable component, the filter screen 4 is located at or near the end of the connecting part 2, so that the flue gas flowing from the smoke hood can be filtered in advance, avoiding contamination of the end of the connecting part 2 and ensuring the cleanliness of the connecting part 2.

[0085] In an optional embodiment of the present invention, such as Figures 5 to 7 As shown, filter screen 4 is set in the horizontal direction to improve the oil filtration effect of filter screen 4.

[0086] In an optional embodiment of the present invention, such as Figures 5 to 7 , Figure 11 As shown, the range hood includes a computer board 6 for controlling the operation of the fan 1, which is located on the outer surface of the connecting part 2. The smoke hood includes a display screen 304, and the computer board 6 communicates with the display screen 304. The display screen 304 can display the operating mode of the range hood, and the user can adjust the operating mode and working status of the range hood through the display screen 304. By placing the computer board 6 on the outer surface of the connecting part 2, it is ensured that the computer board 6 will not be contaminated by oil fumes during use. Moreover, since the computer board 6 is located on the connecting part 2, which is a non-replaceable component, the computer board 6 does not need to be removed when the old smoke hood is removed, avoiding the removal and rewiring of the wiring between the computer board 6 and the fan 2, thus ensuring the reliability of the wiring. When installing a new smoke hood, the computer board 6 is simply connected to the display board on the new smoke hood. Compared with reconnecting the computer board 6 to the fan 1, this improves the reliability and convenience of installation.

[0087] In an optional embodiment of the present invention, such as Figure 2 , Figure 8 , Figure 9 As shown, the connecting part 2 includes a flue 201 and a connector 202. One end of the flue 201 is connected to the fan 1, and the other end is connected to the connector 202. The connector 202 is used to connect with different smoke hoods. The fan 1 can be positioned above the ceiling via the flue 201 to reduce noise. The connector 202 allows for compatibility with different smoke hoods, facilitating replacement. This connection can be direct or indirect, formed by connecting components (such as connecting pipes). It also includes the use of valves; when a valve is in a conductive state, it can be considered a connection as described above.

[0088] In an optional embodiment of the present invention, such as Figure 13 , Figure 14As shown, different smoke collection hoods all include different smoke collection chambers and the same matching part 305 located on the upper part of the smoke collection chamber and connected to the connecting part 2. The matching part 305 may be equipped with a filter screen 4 as an oil filter box, or it may not be equipped with a filter screen 4. The matching part 305 is provided with a mounting part 306, which is used to install the smoke collection hood on the wall. The mounting part 306 of the matching part 305 of different smoke collection hoods is in the same position on the matching part 305. Considering that during the replacement of the smoke hood, if the installation position of the smoke hood on the wall changes, the installer may need to re-drill holes or cause unnecessary stretching or compression of the smoke pipe 201 during installation, affecting the smoke exhaust effect, this embodiment sets the same matching part 305 on different smoke collection chambers, and sets the same mounting part 306 on the matching part 305. Different smoke hoods can be installed in the same position. When replacing the smoke hood, there is no need to re-drill holes, and there is no need to adjust the length or shape of the smoke pipe 201. This ensures the stability of the flow channel of the smoke pipe 201. On the one hand, by ensuring the stability of the flow channel, the smoke exhaust effect is guaranteed. On the other hand, the convenience of disassembling and assembling different smoke hoods is improved.

[0089] Specifically, such as Figure 13 , Figure 14 As shown, the mounting part 306 can be a mounting hole or other assembly structure opened at the rear of the matching part 305. The mounting part 306 is the same on different smoke hoods. Even if different smoke hoods are replaced, the smoke hood can be directly installed in the original position. While ensuring the smoke exhaust effect of the smoke hood, the smoke hood can be smoothly connected to the smoke pipe 201 without adjusting the length of the smoke pipe 201 or changing the original flow channel shape of the flue 201.

[0090] In an optional embodiment of the present invention, the first smoking chamber 301 includes a top-side double-inhalation smoking chamber with smoking ports on both the top and the sides, and the second smoking chamber 302 includes a top-inhalation smoking chamber with a smoking port only on the top or a side-inhalation smoking chamber with a smoking port only on the side.

[0091] In another alternative embodiment of the invention, such as Figures 5 to 7 As shown, in addition to the first smoking chamber 301 and the second smoking chamber 302, the different smoking chambers also include a third smoking chamber 303. The first smoking chamber 301 includes a top-side double-inhalation smoking chamber with smoking ports on both the top and the side. The second smoking chamber 302 includes a top-inhalation smoking chamber with a smoking port only on the top. The third smoking chamber 303 includes a side-inhalation smoking chamber with a smoking port only on the side.

[0092] In an optional embodiment of the present invention, the range hood may be an integrated stove, the smoke extraction chamber 3 includes a smoke collection hood located above the fan 1, one end of the connecting part 2 is connected to the air inlet of the fan 1, and the other end of the connecting part 2 is used to connect to different smoke collection hoods.

[0093] The features and advantages of the range hood of this invention are:

[0094] 1. In this range hood, the same connecting part 2 can be adapted to different smoke extraction chambers 3, and the fan 1 has different operating modes that match different smoke extraction chambers 3. When the fan 1 is working, it can match different operating modes according to different smoke extraction chambers 3. Since different smoke extraction chambers 3 can be replaced, the problem of oil accumulation can be solved without cleaning the oil stains in the smoke extraction chambers 3. Moreover, it ensures that the fan 1 can still guarantee the smoke extraction performance when different smoke extraction chambers 3 are replaced.

[0095] Second, in this range hood, different smoke extraction chambers 3 can be replaced, which can bring users a brand new sensory experience after replacing the smoke extraction chamber 3, thereby improving the user experience.

[0096] The above description is merely an illustrative embodiment of the present invention and is not intended to limit the scope of the invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention should fall within the scope of protection of the present invention.

Claims

1. A range hood, characterized in that, The range hood includes a fan and a connecting part located upstream of the fan; The connecting part can be used to adapt to different smoking chambers, and the different smoking chambers include at least a first smoking chamber and a second smoking chamber that is different from the first smoking chamber; The fan has different operating modes that match the different smoke chambers, and the different operating modes include at least a first operating mode and a second operating mode that is different from the first operating mode; When the connecting part is adapted and connected to the first smoke-absorbing chamber, the fan operates in the first operating mode. When the connecting part is adapted and connected to the second smoke chamber, the fan operates in the second operating mode during operation; The range hood also includes a mode selection unit, which includes a triggering unit for triggering the different operating modes. The triggering unit includes at least a first triggering unit and a second triggering unit. The first triggering unit is used to trigger the first operating mode, and the second triggering unit is used to trigger the second operating mode.

2. The range hood according to claim 1, characterized in that, The resistance upstream of the fan varies when the different smoke chambers are connected to the connecting part, and the different operating modes are matched with the different resistances upstream of the fan.

3. The range hood according to claim 1, characterized in that, The different operating modes include the operating modes of the wind turbine under different PQ curves. The first operating mode includes the operating mode of the wind turbine under the first PQ curve, and the second operating mode includes the operating mode of the wind turbine under the second PQ curve. The first PQ curve and the second PQ curve are different.

4. The range hood according to claim 1, characterized in that, The different smoking chambers also include a third smoking chamber that is different from the first smoking chamber and the second smoking chamber; the fan has a third operating mode that is different from the first operating mode and the second operating mode; When the connecting part is adapted and connected to the third smoke chamber, the fan operates in the third operating mode.

5. The range hood according to claim 4, characterized in that, The different operating modes include the operating modes of the wind turbine under different PQ curves. The first operating mode includes the operating mode of the wind turbine under the first PQ curve, the second operating mode includes the operating mode of the wind turbine under the second PQ curve, and the third operating mode includes the operating mode of the wind turbine under the third PQ curve. The first PQ curve, the second PQ curve, and the third PQ curve are all different.

6. The range hood according to claim 1, characterized in that, The mode selection unit includes a display screen located on the smoking chamber.

7. The range hood according to claim 1, characterized in that, The range hood includes an identification unit, which is used to distinguish the different smoke extraction chambers.

8. The range hood according to claim 7, characterized in that, Based on the identification result of the identification unit, the range hood automatically selects an operating mode that matches the type of the smoke extraction cavity after obtaining the type of the smoke extraction cavity.

9. The range hood according to claim 7, characterized in that, The identification unit includes a computer board for controlling the operation of the fan, and the display panels of the different smoking chambers include different identification tags. The identification tags are used to distinguish the different smoking chambers. When the display panels with different identification tags communicate with the computer board, the computer board distinguishes the different smoking chambers based on the different identification tags.

10. The range hood according to any one of claims 1 to 9, characterized in that, The fan is at least partially located above the ceiling, the smoke extraction chamber includes a smoke collection hood located below the fan, one end of the connecting part is connected to the air inlet of the fan, and the other end of the connecting part is used to connect to different smoke collection hoods.

11. The range hood according to claim 10, characterized in that, The smoke hood is quickly connected to the connecting part.

12. The range hood according to claim 10, characterized in that, The smoke collection hood includes a matching part connected to the connecting part, and the range hood includes a filter screen, which is disposed on the matching part.

13. The range hood according to claim 12, characterized in that, The matching part includes a first end near the connecting part and a second end away from the connecting part, and the filter is disposed near or located at the second end.

14. The range hood according to claim 10, characterized in that, The range hood includes a filter screen, which is disposed at the connecting part.

15. The range hood according to claim 14, characterized in that, The connecting part includes a third end near the smoke hood and a fourth end away from the smoke hood, and the filter screen is disposed near the third end or located at the third end.

16. The range hood according to claim 12, 13, 14, or 15, characterized in that, The filter screen is arranged in a horizontal direction.

17. The range hood according to claim 10, characterized in that, The range hood includes a computer board for controlling the operation of the fan, the smoke collection hood includes a display screen, the computer board communicates with the display screen, and the computer board is disposed on the outer surface of the connecting part.

18. The range hood according to claim 10, characterized in that, The connection part includes a flue and a connector. One end of the flue is connected to the fan, and the other end of the flue is connected to the connector. The connector is used to connect to different smoke collection hoods.

19. The range hood according to claim 10, characterized in that, Different smoke hoods all include different smoke collection chambers and the same matching part located on the upper part of the smoke collection chamber that is connected to the connecting part.

20. The range hood according to claim 19, characterized in that, The matching part is provided with an installation part, which is used to install the smoke hood on the wall. The installation part of the matching part of different smoke hoods is in the same position on the matching part.

21. The range hood according to claim 10, characterized in that, The first smoking chamber includes a top-side double-suction smoking chamber with smoking ports on both the top and the sides, and the second smoking chamber includes a top-suction smoking chamber with a smoking port only on the top or a side-suction smoking chamber with a smoking port only on the side.

22. The range hood according to claim 10, characterized in that, The different smoking chambers also include a third smoking chamber. The first smoking chamber includes a top-side double-inhalation smoking chamber with smoking ports on both the top and sides. The second smoking chamber includes a top-inhalation smoking chamber with a smoking port only on the top. The third smoking chamber includes a side-inhalation smoking chamber with a smoking port only on the side.

23. The range hood according to any one of claims 1 to 9, characterized in that, The range hood is an integrated stove, and the smoke extraction chamber includes a smoke collection hood located above the fan. One end of the connecting part is connected to the air inlet of the fan, and the other end of the connecting part is used to connect to different smoke collection hoods.

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