Oil smoke suction equipment

Abstract

The utility model discloses oil smoke suction equipment which comprises a smoke gathering cavity and a smoke sensor, the smoke sensor comprises a detection part, the detection part is located in the smoke gathering cavity, the detection part is provided with a detection opening, and the oil smoke suction equipment is configured in the mode that the detection opening faces a cooking bench. According to the oil smoke suction equipment, the detection part located in the smoke gathering cavity is provided with the detection opening, and the detection opening faces the cooking bench, so that when the cooking bench generates and rises smoke, the smoke can be detected by the smoke sensor, the detection of the smoke sensor is more sensitive, and the oil smoke suction equipment with different suction levels can sensitively capture the smoke.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a cooking fume suction device. Background Art

[0002] In the related art, smoke sensors of range hoods are mainly used in range hoods with large air volumes, relying on the large suction force of the fan to provide a negative pressure of sufficient magnitude so that smoke generated by cooking can be sucked into the smoke sensor by the negative pressure.

[0003] However, due to the different sizes of smoke in actual cooking scenarios, the suction requirements for range hoods are also different. Some range hoods with low suction power cannot provide enough suction to allow smoke to enter the sensor, making it difficult for the smoke sensor to capture and sense the smoke, which makes it impossible to apply smoke sensing technology to such range hoods. Utility Model Content

[0004] The embodiment of the utility model provides a fume extraction device to solve at least one of the above-mentioned technical problems.

[0005] A range fumes suction device according to an embodiment of the utility model comprises a smoke collecting chamber and a smoke sensor, wherein the smoke sensor comprises a detection unit, the detection unit is located in the smoke collecting chamber, the detection unit is provided with a detection port, and the range fumes suction device is configured such that the detection port is arranged toward the stove.

[0006] In the above-mentioned range fumes extraction device, a detection port is provided in the detection part located in the smoke collecting chamber, and the detection port is arranged toward the stove. Therefore, when smoke is generated and rises from the stove, it can be detected by the smoke sensor, thereby making the detection of the smoke sensor more sensitive, so that range fumes extraction devices with different suction levels can sensitively capture smoke.

[0007] In some embodiments, the range fumes extraction device comprises a box body, the box body forms the smoke collecting chamber, the smoke sensor comprises a main body and a bracket, the main body is mounted on the bracket, and the bracket is mounted on the box body.

[0008] In some embodiments, the bracket includes a first part and a second part, the first part is fixedly connected to the second part, the first part is used to be fixedly connected to the smoke sensor, and the second part is used to be fixedly connected to the box.

[0009] In some embodiments, the main body includes a shell and a detection element, the detection element is installed in the shell, the shell is fixedly connected to the first part, the shell has a first mounting portion, the first part has a second mounting portion, the first mounting portion cooperates with the second mounting portion to fix the shell to the first part.

[0010] In some embodiments, the first mounting portion includes one of a pin and a pin hole, and the second mounting portion includes the other of a pin and a pin hole, and the pin is inserted into the pin hole to fix the housing to the first portion.

[0011] In some embodiments, the first portion includes a first mounting hole, the shell includes a second mounting hole, and the smoke sensor includes a first fastener, and the first fastener passes through the first mounting hole and the second mounting hole to fix the shell to the first portion.

[0012] In some embodiments, the second part includes a third mounting hole, the bracket includes a second fastener, and the second fastener passes through the third mounting hole to fix the second part to the box.

[0013] In some embodiments, the box body includes a smoke collecting hood, a fan hood and a reinforcing plate, the smoke collecting hood forms the smoke collecting cavity, the smoke collecting hood is connected to the fan hood, the reinforcing plate is installed at the connection between the smoke collecting hood and the fan hood, and the bracket is installed on the reinforcing plate.

[0014] In some embodiments, the second portion has a hollow portion, and when the smoke sensor is mounted on the bracket, the detection portion extends from the hollow portion so that the detection portion is located in the smoke collecting cavity.

[0015] In some embodiments, the oil fume extraction device comprises a filter, the smoke collecting hood is provided with a smoke inlet, the filter is arranged at the smoke inlet, and the detection unit at least partially contacts the filter.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 It is a schematic structural diagram of a cross section of a range fumes extraction device according to an embodiment of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of a smoke sensor according to an embodiment of the utility model;

[0020] Figure 3 is another structural schematic diagram of a smoke sensor according to an embodiment of the utility model;

[0021] Figure 4It is a schematic diagram of smoke flow of the range fumes extraction device according to the embodiment of the utility model.

[0022] Description of main component symbols:

[0023] Smoke collecting chamber 10, smoke sensor 12, detection part 14, detection port 16, fan 18, smoke inlet 20, smoke exhaust port 22, box body 24, main body 26, bracket 28, first part 30, second part 34, shell 36, first mounting part 38, second mounting part 40, first mounting hole 42, third mounting hole 46, smoke collecting hood 48, fan hood 50, reinforcement plate 52, hollow part 54, filter element 56, and range fumes suction equipment 100. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0026] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0028] The disclosure herein provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described herein. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0029] In the related art, smoke sensors of range hoods are mainly used in range hoods with large air volumes, relying on the large suction force of the fan to provide a negative pressure of sufficient magnitude so that smoke generated by cooking can be sucked into the smoke sensor by the negative pressure.

[0030] However, due to the different sizes of smoke in actual cooking scenarios, the suction requirements for range hoods are also different. In some range hoods with low suction, it is difficult to provide sufficient suction to allow smoke to enter the sensor, making it difficult for the smoke sensor to capture and sense the smoke, thus making it impossible to apply smoke sensing technology to such range hoods.

[0031] See also Figure 1 and Figure 4 A range fumes extraction device 100 according to an embodiment of the present invention includes a smoke collecting chamber 10 and a smoke sensor 12. The smoke sensor 12 includes a detection unit 14. The detection unit 14 is located in the smoke collecting chamber 10. The detection unit 14 is provided with a detection port 16. The range fumes extraction device 100 is configured such that the detection port 16 is disposed toward the stove.

[0032] In the above-mentioned range fumes extraction device 100, the detection portion 14 located in the smoke collecting chamber 10 is provided with a detection port 16, and the detection port 16 is arranged toward the stove. Therefore, when smoke is generated and rises from the stove, it can be detected by the smoke sensor 12, thereby making the detection of the smoke sensor 12 more sensitive, so that the range fumes extraction devices 100 with different suction levels can sensitively capture smoke.

[0033] Specifically, the range fumes extraction device 100 includes a fan 18, a smoke inlet 20 and a smoke exhaust port 22. The range fumes extraction device 100 is installed on a stove, with the smoke inlet 20 facing the stove. The fan 18 generates negative pressure at the smoke inlet 20, sucking in the smoke generated by the cooking equipment on the stove and exhausting it from the smoke exhaust port 22, thereby exhausting the smoke generated by the cooking equipment.

[0034] The range fumes extraction device 100 comprises a smoke collecting chamber 10, which is arranged at a side close to the stove and is used to collect smoke generated by the cooking device at a smoke inlet 20 to prevent the smoke from escaping.

[0035] The smoke sensor 12 is used to detect the current smoke concentration. The smoke sensor 12 includes a detection unit 14, and the detection unit 14 is located in the smoke collecting chamber 10. It is understandable that the smoke sensor 12 can be located in the smoke collecting chamber 10 as a whole, or the detection unit 14 can be located in the smoke collecting chamber 10, or at least a part of the detection unit 14 can be located in the smoke collecting chamber 10.

[0036] The detection unit 14 is provided with a detection port 16, which is disposed toward the stove. Smoke enters the detection cavity of the smoke sensor 12 through the detection port 16, and the smoke concentration is detected in the detection cavity. The detection port 16 of the smoke sensor 12 is disposed toward the stove.

[0037] In this way, the detection port 16 of the smoke sensor 12 is closer to the smoke source, and when smoke is generated and rises from the stove, the smoke can directly enter the detection cavity of the smoke sensor 12 through the detection port 16 without the fan 18 working to suck the smoke. Therefore, the smoke concentration can be detected when the range fumes extraction device 100 has not started working or the suction force of the fan 18 is small.

[0038] The range fumes extraction device 100 can perform operations such as turning on and off the range fumes extraction device 100 and adjusting the current rotation speed of the fan 18 according to the current smoke concentration detected by the smoke sensor 12, thereby expanding the control function of the range fumes extraction device 100.

[0039] The smoke sensor 12 includes a photoelectric smoke sensor, which uses a photodiode and a photoresistor to work. When light is blocked by smoke, the resistance value in the circuit changes, thereby triggering the sensor.

[0040] In some embodiments, the range fumes extraction device 100 includes a housing 24 , which forms a smoke collecting chamber 10 , and the smoke sensor 12 includes a main body 26 and a bracket 28 , wherein the main body 26 is mounted on the bracket 28 , and the bracket 28 is mounted on the housing 24 .

[0041] In this way, the main body 26 of the smoke sensor 12 can be installed in the smoke collecting chamber 10 through the bracket 28 .

[0042] Specifically, Figure 1 As shown, the range fume extraction device 100 includes a housing 24, and a fan 18 is disposed in the housing 24. The housing 24 forms a smoke collecting chamber 10, and smoke first enters the smoke collecting chamber 10 after being generated. The detection part 14 of the smoke sensor 12 is located in the smoke collecting chamber 10, so that smoke can quickly enter the detection port 16 after being generated.

[0043] The smoke sensor 12 includes a main body 26 and a bracket 28 . The detection function module is arranged on the main body 26 . The bracket 28 is used to support and fix the main body 26 in the box 24 , so that the detection unit 14 is located in the smoke collecting chamber 10 .

[0044] In some embodiments, the bracket 28 includes a first portion 30 and a second portion 34 , wherein the first portion 30 is fixedly connected to the second portion 34 , the first portion 30 is used to be fixedly connected to the smoke sensor 12 , and the second portion 34 is used to be fixedly connected to the box 24 .

[0045] In this way, by adjusting the positional relationship between the first portion 30 and the second portion 34 of the bracket 28 , the installation position of the main body 26 can be adjusted.

[0046] Specifically, Figure 3 As shown, the first part 30 of the bracket 28 is fixedly connected to the smoke sensor 12, the second part 34 of the bracket 28 is fixedly connected to the box body 24, the first part 30 is fixedly connected to the second part 34, and there is a certain angle between the first part 30 and the second part 34. By adjusting the angle between the first part 30 and the second part 34, the detection port 16 of the smoke sensor 12 can be directed toward the stove.

[0047] Optionally, the first portion 30 and the second portion 34 may be integrally formed, or the first portion 30 and the second portion 34 may be fixedly connected by welding, gluing, or the like.

[0048] The first portion 30 and the second portion 34 are bent to form a certain angle. In one embodiment, the first portion 30 and the second portion 34 are bent to form 90 (±5) degrees, so that after the smoke sensor 12 is installed on the bracket 28, the detection port 16 faces the stove.

[0049] In some embodiments, the main body 26 includes a shell 36 and a detection member (not shown), the detection member is installed in the shell 36, the shell 36 is fixedly connected to the first part 30, the shell 36 has a first mounting portion 38, the first part 30 has a second mounting portion 40, the first mounting portion 38 cooperates with the second mounting portion 40 to fix the shell 36 to the first part 30.

[0050] In this way, the first mounting portion 38 and the second mounting portion 40 cooperate to achieve positioning and fixing between the housing 36 and the bracket 28 , and the installation is simple and reliable.

[0051] Specifically, Figure 3 As shown, the housing 36 and the bracket 28 are installed by cooperation with the first mounting portion 38 and the second mounting portion 40, which can simplify the installation process, reduce the difficulty of assembly, and improve the assembly efficiency.

[0052] In one embodiment, the first mounting portion 38 includes one of a buckle and a slot, and the second mounting portion 40 includes the other of the buckle and the slot. When the housing 36 is mounted on the bracket 28, the buckle is locked in the slot to position and fix the first mounting portion 38 and the second mounting portion 40. The buckle and the slot cooperate to simultaneously complete positioning and mounting, so that the housing 36 and the bracket 28 can be easily mounted and disassembled.

[0053] In one embodiment, the first mounting portion 38 includes one of a threaded hole and a threaded column, and the second mounting portion 40 includes the other of the threaded hole and the threaded column. When the housing 36 is mounted to the bracket 28, the first mounting portion 38 and the second mounting portion 40 are positioned and fixed by screwing the threaded column into the threaded hole.

[0054] See also Figure 3 In some embodiments, the first mounting portion 38 includes one of a pin and a pin hole, and the second mounting portion 40 includes the other of a pin and a pin hole, and the pin is inserted into the pin hole to fix the housing 36 to the first portion 30.

[0055] In this way, the housing 36 and the bracket 28 can be positioned and fixed by the pins and the pin holes, and the installation process is simple and fast.

[0056] Specifically, the first mounting portion 38 includes one of a pin and a pin hole, and the second mounting portion 40 includes the other of a pin and a pin hole. When the housing 36 and the bracket 28 are mounted, the pins are inserted into the pin holes to position and fix the first mounting portion 38 and the second mounting portion 40. By matching the pins with the pin holes, positioning and mounting can be completed at the same time, making the mounting and dismounting of the housing 36 and the bracket 28 relatively simple.

[0057] See also Figure 2 and Figure 3 In some embodiments, the first portion 30 includes a first mounting hole 42 , the shell 36 includes a second mounting hole, and the smoke sensor 12 includes a first fastener, which passes through the first mounting hole 42 and the second mounting hole to fix the shell 36 to the first portion 30 .

[0058] In this way, the housing 36 of the smoke sensor 12 is fixed to the bracket 28 by the first fastener, so that the fixed connection between the housing 36 and the bracket 28 is more reliable.

[0059] Specifically, a first mounting hole 42 is opened in the first part 30, a second mounting hole is opened in the shell 36, and a second fastener passes through the first mounting hole 42 and the second mounting hole to fix the shell 36 on the bracket 28. In this way, the fixing method can be simple and reliable, and the assembly process is simple.

[0060] In one embodiment, the first fastener comprises a screw, and the first mounting hole 42 and the second mounting hole comprise threaded holes.

[0061] In some embodiments, the second portion 34 includes a third mounting hole 46 , and the bracket 28 includes a second fastener. The second fastener passes through the third mounting hole 46 to fix the second portion 34 to the box body 24 .

[0062] In this way, the second portion 34 of the bracket 28 is fixedly mounted on the box body 24 by the second fastener. The fixing method is simple and reliable, and the assembly process is simple and convenient.

[0063] Specifically, a third mounting hole 46 is opened in the second portion 34 of the bracket 28, and a second fastener passes through the third mounting hole 46 to fix the second portion 34 to the box body 24. This makes the fixing method simple and reliable, and the assembly process is simple.

[0064] In one embodiment, the second fastener comprises a screw and the third mounting hole 46 comprises a threaded hole.

[0065] See also Figure 1 In some embodiments, the box body 24 includes a smoke collecting hood 48, a fan hood 50 and a reinforcing plate 52. The smoke collecting hood 48 forms a smoke collecting chamber 10. The smoke collecting hood 48 is connected to the fan hood 50. The reinforcing plate 52 is installed at the connection between the smoke collecting hood 48 and the fan hood 50. The bracket 28 is installed on the reinforcing plate 52.

[0066] In this way, the smoke sensor 12 can be installed firmly, and the smoke sensor 12 as a whole can be closer to the smoke generating location on the stove.

[0067] Specifically, the smoke hood 48 can increase the interception area of ​​the range fumes suction device 100 for the smoke, so that the smoke can be more concentratedly absorbed by the smoke machine during the emission process, thereby improving the smoke capture efficiency.

[0068] The smoke collecting hood 48 and the fan hood 50 are fixedly connected, and a reinforcing plate 52 is provided at the connection to enhance the strength of the box body 24. The smoke sensor 12 is mounted on the reinforcing plate 52 through the bracket 28, which can not only make the installation of the smoke sensor 12 firm and reliable, but also make the smoke sensor 12 as a whole closer to the smoke generating place on the stove, which is conducive to the smoke entering the detection port 16.

[0069] See also Figure 3 In some embodiments, the second portion 34 has a hollow portion 54 , and when the smoke sensor 12 is mounted on the bracket 28 , the detection portion 14 extends from the hollow portion 54 so that the detection portion 14 is located in the smoke collecting chamber 10 .

[0070] In this way, when the smoke sensor 12 is installed on the bracket 28, the detection unit 14 can be located in the smoke collecting chamber 10, which is closer to the source of smoke.

[0071] Specifically, the smoke sensor 12 includes a detection port 16 and a detection cavity. The detection port 16 is connected to the detection cavity so that smoke enters the detection cavity through the detection port 16 to detect the current smoke concentration. The smoke sensor 12 also includes a shell 36 and a detection function part. The shell 36 includes a detection part 14. The detection port 16 is arranged in the detection part 14, and the detection function part is accommodated in the shell 36. In order to make the detection port 16 closer to the source of smoke, when the smoke sensor 12 is installed, the detection part 14 is located in the smoke collection cavity 10 of the range fumes suction device 100, and the detection port 16 is oriented toward the stove. The other parts of the smoke sensor 12 can be located in the fan cover 50, so that the smoke sensor 12 can fully benefit from the existing space inside the range fumes suction device 100 to complete the installation.

[0072] See also Figure 1 In some embodiments, the range fume extraction device 100 includes a filter 56 , the smoke collecting hood 48 is provided with a smoke inlet 20 , the filter 56 is arranged at the smoke inlet 20 , and the detection unit 14 at least partially contacts the filter 56 .

[0073] In this way, the distance between the detection portion 14 and the stove is closer, making it easier for smoke to enter the detection port 16 .

[0074] Specifically, the smoke inlet 20 is arranged on the smoke collecting cover 48, which can increase the area of ​​the smoke inlet 20. The filter 56 is arranged on the smoke inlet 20 to filter the smoke. When the smoke passes through the filter 56, grease will adhere to the filter 56, reducing the smoke from entering the interior of the smoke machine, which plays a certain protective role for the smoke machine. At the same time, the filter 56 can also prevent large objects or impurities from being sucked into the interior of the smoke machine, effectively protecting the internal parts of the smoke machine from damage.

[0075] The filter 56 is disposed at the smoke inlet 20, and the detection unit 14 at least partially contacts the filter 56, so that the distance between the detection unit 14 and the stove is closer, and when smoke is generated and rises on the stove, it is easier to enter the detection port 16. In this way, the smoke sensor 12 can detect smoke more sensitively.

[0076] In summary, the detection port 16 of the smoke sensor 12 is close to the filter element 56, so that the detection port 16 is closer to the smoke source, the concentration of smoke entering the detection port 16 is greater, and the overall sensing of the smoke sensor 12 is more sensitive.

[0077] like Figure 4 As shown, the smoke path must pass through the detection port 16 of the smoke sensor 12, so the smoke sensor 12 is set in this way, and the detection port 16 is set downward, which can reduce the demand for the air volume and air pressure of the fan 18, so that the range fumes extraction device 100 can sensitively sense the smoke even in an environment with small air volume and little smoke.

[0078] In one embodiment, when the smoke sensor 12 is installed, the pins of the housing 36 of the smoke sensor 12 are first inserted into the pin holes of the bracket 28, and then the housing 36 is fixed to the bracket 28 by the first fastener. Then, the bracket 28 is attached to the reinforcing plate 52, and the bracket 28 is fixed to the reinforcing plate 52 by the second fastener. Finally, the installation effect is as follows: Figures 1 to 3 shown.

[0079] It is understandable that the oil fume extraction device 100 includes but is not limited to an oil fume extraction machine, an integrated stove or other devices with an oil fume extraction function.

[0080] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0081] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above implementation methods within the scope of the present invention.

Claims

1. A fume extraction device, characterized in that: It comprises a smoke collecting chamber and a smoke sensor, wherein the smoke sensor comprises a detection part, the detection part is located in the smoke collecting chamber, the detection part is provided with a detection port, and the range fumes suction device is configured such that the detection port is arranged toward the stove.

2. The range fumes extraction device according to claim 1, characterized in that: The oil fume suction device comprises a box body, the box body forms the smoke collecting chamber, and the smoke sensor comprises a main body and a bracket, the main body is installed on the bracket, and the bracket is installed on the box body.

3. The range fumes extraction device according to claim 2, characterized in that: The bracket includes a first part and a second part, the first part is fixedly connected to the second part, the first part is used to be fixedly connected to the smoke sensor, and the second part is used to be fixedly connected to the box.

4. The range fumes extraction device according to claim 3, characterized in that: The main body includes a shell and a detection member, the detection member is installed in the shell, the shell is fixedly connected to the first part, the shell has a first mounting portion, the first part has a second mounting portion, the first mounting portion cooperates with the second mounting portion to fix the shell to the first part.

5. The range fumes extraction device according to claim 4, characterized in that: The first mounting portion includes one of a pin and a pin hole, and the second mounting portion includes the other of the pin and the pin hole, wherein the pin is inserted into the pin hole to fix the housing to the first portion.

6. The range fumes extraction device according to claim 5, characterized in that: The first part includes a first mounting hole, the shell includes a second mounting hole, and the smoke sensor includes a first fastener, which passes through the first mounting hole and the second mounting hole to fix the shell to the first part.

7. The range fumes extraction device according to claim 3, characterized in that: The second part includes a third mounting hole, the bracket includes a second fastener, and the second fastener passes through the third mounting hole to fix the second part to the box.

8. The range fumes extraction device according to claim 2, characterized in that: The box body includes a smoke collecting hood, a fan hood and a reinforcing plate. The smoke collecting hood forms the smoke collecting cavity. The smoke collecting hood is connected to the fan hood. The reinforcing plate is installed at the connection between the smoke collecting hood and the fan hood. The bracket is installed on the reinforcing plate.

9. The range fumes extraction device according to claim 8, characterized in that: The second part has a hollow portion, and when the smoke sensor is installed in the bracket, the detection portion extends out from the hollow portion so that the detection portion is located in the smoke collecting cavity.

10. The range fumes extraction device according to claim 8, characterized in that: The oil fume suction device comprises a filter, the smoke collecting hood is provided with a smoke inlet, the filter is arranged at the smoke inlet, and the detection part at least partially contacts the filter.

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