A range hood with air detection and filtering functions

Abstract

The present invention discloses a range hood with air detection and filtering functions, comprising a range hood body, an air filtering component, an air quality detection module for detecting the air quality of the environment, and a main control module. The range hood body is provided with an exhaust passage and an exhaust component, and the exhaust component is arranged in the exhaust passage; the air filtering component is arranged on the range hood body and located in the exhaust passage; the main control module is electrically connected to the air quality detection module and the exhaust component respectively to control the operation of the exhaust component according to the air quality. The design does not require human control, and when the air quality of the indoor environment decreases, the air is exhausted and ventilated in time, so that the indoor air is maintained in a good quality range, and the exhausted air does not cause too much pollution to the external environment.

Description

Technical Field

[0001] The invention relates to the field of kitchen and bathroom, and in particular to a range hood with air detection and filtering functions. Background Art

[0002] Traditional range hoods have relatively simple functions and require manual control to open and close the range hoods. There is a lack of intelligent start and shutdown control of the range hoods. When harmful gases enter the kitchen, they affect the kitchen air quality and endanger people's health and physical safety. At the same time, when the range hood discharges the gas in the kitchen without any treatment, it will also affect the external environment. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a range hood with air detection and filtering functions, which controls the operation of the range hood according to the air quality of the environment, and processes the air through an air filtering component to optimize the exhaust of external gas.

[0004] According to the first aspect of the present invention, a range hood with air detection and filtering functions includes: a range hood body, provided with an exhaust passage and an exhaust component, the exhaust component is arranged in the exhaust passage; an air filtering component is arranged on the range hood body and located in the exhaust passage; an air quality detection module, used to detect the air quality of the environment; a main control module, respectively electrically connected to the air quality detection module and the exhaust component to control the operation of the exhaust component according to the air quality.

[0005] A range hood with air detection and filtering functions according to an embodiment of the present invention has at least the following beneficial effects:

[0006] The range hood of the present invention has an air quality detection module that detects the air quality of the indoor environment, and a main control module controls the operation of the exhaust component according to the fed-back ambient air quality, without the need for human manipulation. When the air quality of the indoor environment decreases, exhaust and ventilation are performed in time to keep the indoor air in a good quality range, and the exhaust component drives the wind flow in the exhaust channel to discharge the turbid indoor air to the outside. At the same time, the air filter component in the exhaust channel can filter and optimize the turbid air, so that the discharged air will not cause too much pollution to the external environment.

[0007] According to some embodiments of the present invention, a driving mechanism and a baffle connected to the driving mechanism are provided on the range hood body, the main control module is electrically connected to the driving mechanism to control the operation of the driving mechanism, and the driving mechanism can drive the baffle to block or open the air inlet of the exhaust duct.

[0008] According to some embodiments of the present invention, the baffle is hinged to the range hood body, and the driving mechanism can drive the baffle to flip over to block or open the air inlet of the exhaust passage.

[0009] According to some embodiments of the present invention, a buffer structure is provided between the baffle and the range hood body.

[0010] According to some embodiments of the present invention, the air filter assembly is detachably connected to the range hood body.

[0011] According to some embodiments of the present invention, a limiting member is further included, which is detachably connected to the range hood body, and the air filter assembly can abut against the limiting member to prevent the air filter assembly from escaping from the exhaust passage.

[0012] According to some embodiments of the present invention, an air volume detection module and a prompt module are further included. The air volume detection module is arranged in the exhaust passage, and the main control module is electrically connected to the air volume detection module and the prompt module respectively.

[0013] According to some embodiments of the present invention, a wireless transmission module is further included, and the main control module is electrically connected to the wireless transmission module.

[0014] According to some embodiments of the present invention, the air quality detection module includes a gas detection unit and a particle detection unit, and the main control module is electrically connected to the gas detection unit and the particle detection unit, respectively.

[0015] According to some embodiments of the present invention, an electrical box body is further included, which is connected to the range hood body to form a cavity, a partition is provided in the cavity to divide the cavity into a first cavity and a second cavity, and the electrical box body is provided with detection ports respectively connected to the outside and the first cavity, the air quality detection module is arranged in the first cavity, and the main control module is arranged in the second cavity.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through 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 three-dimensional schematic diagram of one embodiment of the range hood of the present invention;

[0019] Figure 2A schematic diagram of the operating state of one embodiment of the range hood of the present invention;

[0020] Figure 3 A schematic diagram of a disassembled state of one embodiment of a limiting member of a range hood of the present invention;

[0021] Figure 4 It is a schematic cross-sectional view at one angle of one embodiment of the range hood of the present invention;

[0022] Figure 5 An exploded view of one embodiment of the electrical box of the range hood of the present invention;

[0023] Figure 6 A schematic cross-sectional view from another angle of one embodiment of the range hood of the present invention;

[0024] Figure 7 A circuit diagram of one embodiment of the main control module of the range hood of the present invention;

[0025] Figure 8 A circuit diagram of one embodiment of a wireless transmission module of a range hood of the present invention;

[0026] Fig. 9 The circuit diagram of one embodiment of the prompt module of the range hood of the present invention.

[0027] Reference numerals:

[0028] The range hood body 100, the exhaust passage 110, the air inlet 111, the exhaust assembly 120, the air filter assembly 200, the air quality detection module 300, the gas detection unit 310, the particle detection unit 320, the main control module 400, the electrical box body 500, the first cavity 510, the second cavity 520, the detection port 530, the partition 540, the wireless transmission module 600, the driving mechanism 610, the linear cylinder 611, the first bracket 612, the second bracket 613, the third bracket 614, the baffle 620, the buffer structure 700, the buffer column 710, the buffer gasket 720, the limiter 800, the air volume detection module 910, and the prompt module 920. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, examples of which 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.

[0030] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientations or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the present invention, 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] like Figure 1-9 As shown, a range hood with air detection and filtering functions according to an embodiment of the present invention includes a range hood body 100, an air filter assembly 200, an air quality detection module 300 for detecting the air quality of the environment, and a main control module 400. The range hood body 100 is provided with an exhaust passage 110 and an exhaust assembly 120, the exhaust assembly 120 is arranged in the exhaust passage 110, the air filter assembly 200 is arranged on the range hood body 100 and is located in the exhaust passage 110, and the main control module 400 is electrically connected to the air quality detection module 300 and the exhaust assembly 120 respectively to control the operation of the exhaust assembly 120 according to the air quality.

[0034] Among them, Figure 7 As shown, the main control module 400 can be a chip with logic processing function such as a single-chip microcomputer, CPU, PLC, etc., and is connected to the air quality detection module 300 through a serial port to obtain feedback air quality information.

[0035] like Figure 2 , Figure 4As shown, the range hood body 100 can have various shapes, and the basic components include a shell and a control panel, etc. The shell can enclose an exhaust duct 110, the air inlet 111 of the exhaust duct 110 is connected to the indoor environment, and the air outlet of the exhaust duct 110 is connected to the external environment. The exhaust component can be an exhaust fan or a cross-flow fan, and the air filter component 200 can use activated carbon or other adsorption materials.

[0036] In the range hood of the present invention, the air quality detection module 300 detects the air quality of the indoor environment, and the main control module 400 controls the operation of the exhaust component 120 according to the feedback of the ambient air quality. The exhaust component 120 drives the wind flow in the exhaust channel 110 to discharge the turbid air in the room to the outside. At the same time, the air filter component 200 in the exhaust channel 110 can filter and optimize the turbid air so that the exhausted air will not cause too much pollution to the external environment. When the air quality of the indoor environment returns to normal, the exhaust component 120 is controlled to stop running.

[0037] In some embodiments of the present invention, Figure 7 As shown, the air quality detection module 300 includes a gas detection unit 310 and a particle detection unit 320, and the main control module 400 is electrically connected to the gas detection unit 310 and the particle detection unit 320 respectively.

[0038] Specifically, the gas detection unit 310 can detect different types of gases in the room, so as to detect whether there are certain gases in the room whose concentration exceeds the standard. For example, a thick-film semiconductor gas sensor can be used to detect the concentration of organic volatile gases such as formaldehyde, benzene, ammonia, hydrogen, alcohol, cigarette smoke, essence, carbon monoxide, etc., and the thick-film semiconductor gas sensor can be integrated with an analog-to-digital conversion chip to convert the gas concentration into a pollution level, convert it into a TTL level signal, and input it into the main control module 400.

[0039] The particle detection unit 320 can detect large molecular particles (such as oil smoke) in the room. It adopts the particle counting principle, uses an internal integrated power resistor to heat the air, and has a detection light path composed of photoelectric elements. The rising hot air drives the large molecular particles in the air into the detection light path, thereby performing detection. The particle concentration is converted into PWM and UART signal outputs, which are input into the main control module 400.

[0040] In some embodiments of the present invention, an electrical box body 500 is also included. Figure 5 , 6As shown, the electrical box body 500 is connected to the range hood body 100 to form a cavity, and a partition 540 is provided in the cavity to divide the cavity into a first cavity 510 and a second cavity 520. The electrical box body 500 is provided with a detection port 530 respectively connecting the outside and the first cavity 510, the air quality detection module 300 is arranged in the first cavity 510, and the main control module 400 is arranged in the second cavity 520.

[0041] The electrical box body 500 can accommodate and protect the air quality detection module 300 and the main control module 400. Since the air quality detection module 300 needs to detect the external environment, the cavity is divided into a first cavity 510 and a second cavity 520. The partition 540 isolates the first cavity 510 and the second cavity 520, and the second cavity 520 is in a relatively sealed state to prevent external oil smoke, dust, etc. from corroding and interfering with the main control module 400. Perforations can be set on the partition 540 to allow wires connecting the main control module 400 and the air quality detection module 300 to pass through.

[0042] In some embodiments of the present invention, a wireless transmission module 600 is also included, such as Figure 7 , 8 As shown, the main control module 400 is electrically connected to the wireless transmission module 600. The wireless transmission module 600 may be a WiFi module, a Bluetooth module or an infrared module, which can receive external control signals and send operation signals of the range hood.

[0043] In some embodiments of the present invention, a driving mechanism 610 and a baffle 620 connected to the driving mechanism 610 are provided on the range hood body 100. The main control module 400 is electrically connected to the driving mechanism 610 to control the operation of the driving mechanism 610. The driving mechanism 610 can drive the baffle 620 to block or open the air inlet 111 of the exhaust channel 110.

[0044] When the range hood body 100 stops running, the baffle 620 covers the air inlet 111 of the exhaust duct 110, thereby preventing outdoor air or the air in the exhaust duct 110 from flowing back into the indoor environment and causing the indoor environment to be polluted. It should be noted that the baffle 620 covering the air inlet 111 here does not necessarily completely close the air inlet 111. The baffle 620 can hinder the airflow of the air inlet 111 to a certain extent, which also falls within the protection scope of the present design.

[0045] In some embodiments of the present invention, the baffle 620 is hinged to the range hood body 100, and the driving mechanism 610 can drive the baffle 620 to flip to block or open the air inlet 111 of the exhaust channel 110. Of course, the baffle 620 can also open or block the air inlet 111 by translation.

[0046] Specifically, specifically, such as Figure 2 As shown, the driving mechanism 610 may include two groups of driving components, which are respectively connected to the two sides of the baffle 620 to synchronously apply force to the baffle 620 to drive the baffle 620 to flip, and the driving components include a linear cylinder 611, a first bracket 612, a second bracket 613 and a third bracket 614. The first bracket 612 and the second bracket 613 are both arranged on the range hood body 100, and the third bracket 614 is arranged on the baffle 620. The cylinder body of the linear cylinder 611 is hinged to the first bracket 612, the driving rod of the linear cylinder 611 is hinged to one end of the third bracket 614, and the other end of the third bracket 614 is hinged to the second bracket 613. The baffle 620 can be driven to flip through the extension and retraction of the linear cylinder 611.

[0047] In order to prevent the baffle 620 from hitting the range hood body 100 when it is turned over and close to the range hood body 100, in some embodiments of the present invention, a buffer structure 700 is provided between the baffle 620 and the range hood body 100. Specifically, the buffer structure 700 may include a buffer column 710 and a buffer gasket 720. The buffer column 710 and the buffer gasket 720 may be made of soft materials, such as silicone, rubber, etc. Figure 2 As shown, the buffer column 710 is arranged on the range hood body 100 , and the buffer gasket 720 is arranged on the baffle 620 .

[0048] In some embodiments of the present invention, the air filter assembly 200 is detachably connected to the range hood body 100, and the user can replace the air filter assembly 200 after long-term use.

[0049] The air filter assembly 200 can be detachably connected to the range hood body 100 in a variety of ways. For example, the air filter assembly 200 can be connected to the range hood body 100 by a buckle, a latch, etc. In some embodiments of the present invention, for example Figure 3 As shown, it also includes a limiting member 800 , which is detachably connected to the range hood body 100 , and the air filter assembly 200 can abut against the limiting member 800 to prevent the air filter assembly 200 from escaping from the exhaust channel 110 .

[0050] Specifically, the limiting member 800 is a limiting frame, which is located at the air inlet 111 of the exhaust channel 110 and is detachably connected to the range hood body 100. The air filter assembly 200 can abut against the limiting frame, and the limiting frame can be snap-connected to the range hood body 100 by a buckle. The air filter assembly 200 can be replaced by removing the limiting frame.

[0051] In some embodiments of the present invention, an air volume detection module 910 and a prompt module 920 are further included. The air volume detection module 910 is arranged in the exhaust duct 110, and the main control module 400 is electrically connected to the air volume detection module 910 and the prompt module 920 respectively.

[0052] The air volume sensor can be an ultrasonic air volume sensor, which can convert the air volume according to the Karman vortex street. According to the long-term air volume, it can be roughly known when the air filter assembly 200 needs to be replaced, and the prompt module 920 can be used to prompt. The prompt module 920 can be a buzzer or a light prompt component. Fig. 9 shown.

[0053] 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 embodiment or example are included in at least one embodiment or example of the present invention. 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 may be combined in any one or more embodiments or examples in a suitable manner.

[0054] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A range hood with air detection and filtering function, characterized in that: include: The range hood body is provided with an exhaust passage and an exhaust assembly, wherein the exhaust assembly is arranged in the exhaust passage; An air filter assembly, disposed on the range hood body and located in the exhaust passage; Air quality detection module, used to detect the air quality of the environment; A main control module, electrically connected to the air quality detection module and the exhaust assembly respectively to control the operation of the exhaust assembly according to the air quality; The range hood body is provided with a driving mechanism and a baffle connected to the driving mechanism, the main control module is electrically connected to the driving mechanism to control the operation of the driving mechanism, and the driving mechanism can drive the baffle to cover or open the air inlet of the exhaust channel; The baffle is hinged to the range hood body, and the driving mechanism can drive the baffle to flip over to block or open the air inlet of the exhaust channel; The driving mechanism includes two groups of driving components, which are respectively connected to the two sides of the baffle to synchronously apply force on the baffle to drive the baffle to flip. The driving components include a linear cylinder, a first bracket, a second bracket and a third bracket. The first bracket and the second bracket are both arranged on the range hood body, and the third bracket is arranged on the baffle. The cylinder body of the linear cylinder is hinged to the first bracket, the driving rod of the linear cylinder is hinged to one end of the third bracket, and the other end of the third bracket is hinged to the second bracket. The baffle can be driven to flip through the extension and retraction of the linear cylinder.

2. The range hood with air detection and filtering function according to claim 1, characterized in that: A buffer structure is arranged between the baffle and the range hood body.

3. The range hood with air detection and filtering function according to claim 1, characterized in that: The air filter assembly is detachably connected to the range hood body.

4. The range hood with air detection and filtering function according to claim 3, characterized in that: It also includes a limiting member, which is detachably connected to the range hood body, and the air filter assembly can abut against the limiting member to prevent the air filter assembly from escaping from the exhaust passage.

5. The range hood with air detection and filtering function according to claim 3, characterized in that: It also includes an air volume detection module and a prompt module. The air volume detection module is arranged in the exhaust channel, and the main control module is electrically connected to the air volume detection module and the prompt module respectively.

6. The range hood with air detection and filtering function according to claim 1, characterized in that: It also includes a wireless transmission module, and the main control module is electrically connected to the wireless transmission module.

7. The range hood with air detection and filtering function according to claim 1, characterized in that: The air quality detection module includes a gas detection unit and a particle detection unit, and the main control module is electrically connected to the gas detection unit and the particle detection unit respectively.

8. The range hood with air detection and filtering function according to claim 1, characterized in that: It also includes an electrical box body, which is connected to the range hood body to form a cavity, a partition is provided in the cavity to divide the cavity into a first cavity and a second cavity, and the electrical box body is provided with detection ports respectively connected to the outside and the first cavity, the air quality detection module is arranged in the first cavity, and the main control module is arranged in the second cavity.

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