TWI750684B - Split-type range hood - Google Patents

Abstract

A split-type range hood includes a smoke collecting body, a pressurized exhaust pipe, a collector, an exhaust pipe, a fan, an indicator and a control unit. The smoke collecting body is installed above a stove. One end of the collector is connected to the smoke collecting body through the pressurized exhaust pipe, and the other end of the collector is connected to the exhaust pipe. The fan is installed in the collector. The control unit is electrically connected to the fan and the indicator, and the control unit is configured to control the opening and closing of the fan and the speed of the fan and to correspondingly control the opening and closing of the indicator and the light brightness of the indicator.

Description

Separate range hood

The invention relates to a separate range hood, in particular to a range hood in which the fan and the smoke collecting body are separated.

With the advancement of science and technology and the improvement of living standards, various household appliances are rapidly popularized and widely used, and range hoods have long become a must-have appliance in the kitchen. At present, the fans of the range hoods on the market are mostly located directly above the hood, which causes the problem of too much noise and the situation that the fans are easily damaged by pollution. Moreover, the use of the range hoods is not automated and user-friendly enough, so users can The user experience of using the range hood cannot be effectively improved.

Therefore, the inventor of the present invention feels that the above-mentioned defects can be improved, and has devoted himself to research and application of theories, and finally proposes an invention with reasonable design and effective improvement of the above-mentioned defects.

The technical problem to be solved by the present invention is to provide a separate range hood for the deficiencies of the prior art.

In order to solve the above-mentioned technical problems, the present invention provides a separate range hood, comprising: a smoke collecting body, a pressurized exhaust pipe, an air collecting body, an air exhaust duct, a fan, an indicator light, and a control unit, the smoke collecting body is used to be installed above the heating furnace, one end of the air collecting body is connected to the smoke collecting body by the pressurized exhaust pipe, and the other end of the air collecting body is connected to the an exhaust duct, the fan is arranged in the air collector, the control unit is electrically connected to the fan and the indicator light, and the control unit can be used to control the opening and closing of the fan and the adjustment of the rotational speed , and can be used to control the opening and closing of the indicator light and the adjustment of the brightness of the light.

Preferably, the control unit is electrically connected to a first wireless signal transceiver, the fan is electrically connected to a second wireless signal transceiver, and the control unit sends a wireless signal through the first wireless signal transceiver. The fan receives the wireless signal through the second wireless signal transceiver.

Preferably, the wireless signal sent by the control unit through the first wireless signal transceiver is a Bluetooth signal, a Wi-Fi signal, an infrared signal, a UWB signal, an RFID signal, an RF signal, a GPRS signal, a Zig- One of Bee signal, NFC signal, Z-Wave signal.

Preferably, the control unit receives an external wireless signal through the first wireless signal transceiver, and can control the opening and closing of the fan and the adjustment of the rotational speed according to the external wireless signal, and control the indicator light accordingly. On and off, the adjustment of the brightness of the light and the change of the color of the light.

Preferably, the external wireless signals received by the control unit through the first wireless signal transceiver are Bluetooth signals, Wi-Fi signals, infrared signals, UWB signals, RFID signals, RF signals, GPRS signals, Zig signals -One of Bee signal, NFC signal, Z-Wave signal.

Preferably, the smoke collecting body is provided with an infrared temperature detector electrically connected to the control unit, and the infrared temperature detector can be used to detect the temperature under the smoke collecting body and feed it back to the control unit. The control unit can automatically control the operation of the fan according to the temperature fed back by the infrared temperature detector, and when the temperature fed back by the infrared temperature detector is the first temperature, control the operation of the fan. The rotational speed is the first rotational speed; when the temperature fed back by the infrared temperature detector is the second temperature, the rotational speed of the fan is controlled to be the second rotational speed; when the temperature fed back by the infrared temperature detector is the third temperature , control the speed of the fan to be the third speed.

Preferably, the control unit can further control the fan to continue running for a period of time before stopping when it is judged that the temperature drop change per unit time is greater than a certain value according to the temperature fed back by the infrared temperature detector.

Preferably, the control unit is further configured to control the light brightness of the indicator light to be the first brightness when the rotational speed of the fan is controlled to be the first rotational speed, and to control all the lights when the rotational speed of the fan is controlled to be the second rotational speed. The light brightness of the indicator light is the second brightness, and when the rotation speed of the fan is controlled to be the third rotation speed, the light brightness of the indicator light is controlled to be the third brightness.

Preferably, the control unit is further configured to control the light color of the indicator light to be the first light color when controlling the rotational speed of the fan to be the first rotational speed, and to control the light color when controlling the rotational speed of the fan to be the second rotational speed. The light color of the indicator light is the second light color, and when the rotational speed of the fan is controlled to be the third rotational speed, the light color of the indicator light is controlled to be the third light color.

Preferably, the indicator light is provided with an indicator light rotating motor that is electrically connected to the control unit, the smoke collecting body is provided with a human body sensor that is electrically connected to the control unit, and the human body sensor can It is used to sense the human body position information of the surrounding area of the smoke collecting body, and the control unit can control the indicator light according to the human body position information fed back by the human body sensor, so as to control the opening and closing and the brightness of the indicator light, Thereby, the rotation of the indicator light is controlled as the human body enters the peripheral area of the smoke collecting body and leaves the peripheral area of the smoke collecting body.

Preferably, the smoke collecting body is provided with a PM2.5 concentration detection device that is electrically connected to the control unit, and the PM2.5 concentration detection device can be used to detect and feedback PM2.5 concentration information in the air to the control unit, and the control unit is configured to control the PM2.5 concentration detection device to start detection when receiving the body position information fed back by the body sensor, and to start detection when the body position information fed back by the body sensor is not received. When the human body position information is fed back by the human body sensor, the PM2.5 concentration detection device is controlled to turn off the detection, and after the PM2.5 concentration detection device starts the detection, it is fed back according to the PM2.5 concentration detection device. When it is judged that the PM2.5 concentration information obtained is greater than the preset threshold value, the fan is controlled to start, thereby forming a negative pressure in the room, so as to achieve indoor air circulation and reduce the PM2.5 concentration.

Preferably, the control unit can control the opening and closing of the indicator light and the adjustment of the light color according to the PM2.5 concentration information fed back by the PM2.5 concentration detection device, so that the light color of the indicator light changes with The PM2.5 concentration information fed back by the PM2.5 concentration detection device changes.

Preferably, the smoke collecting body is provided with a carbon monoxide detection device that is electrically connected to the control unit, and the carbon monoxide detection device can be used to detect carbon monoxide concentration information in the air and feed it back to the control unit. When the control unit judges that the carbon monoxide concentration information fed back by the carbon monoxide detection device is greater than a preset threshold, the control unit controls the fan to start, thereby forming a negative pressure in the room to achieve indoor air circulation and reduce the carbon monoxide concentration.

Preferably, the smoke collecting body is provided with a carbon dioxide detection device electrically connected to the control unit, and the carbon dioxide detection device can be used to detect carbon dioxide concentration information in the air and feed it back to the control unit, and the When the control unit judges that the carbon dioxide concentration information fed back by the carbon dioxide detection device is greater than a predetermined threshold value, the control unit controls the fan to start, thereby forming a negative pressure in the room to achieve indoor air circulation and reduce the carbon dioxide concentration.

Preferably, the control unit can control the opening and closing of the indicator lights according to the carbon monoxide concentration information fed back by the carbon monoxide detecting device and the carbon dioxide concentration information fed back by the carbon dioxide detecting device, and display them in different light colors respectively.

Preferably, the smoke collecting body is provided with a human body sensor electrically connected to the control unit, and the human body sensor can be used to sense the human body position information of the surrounding area of the smoke collecting body, and the control The unit can control the opening and closing of the indicator light according to the human body position information fed back by the human body sensor.

Preferably, the smoke collecting body is provided with a bluetooth audio device electrically connected to the control unit, which can be connected with a mobile phone to play the input audio.

The beneficial effect of the present invention is at least that, the separated range hood provided by the present invention is a range hood in which the fan and the smoke collecting body are separated, which effectively reduces the noise of the range hood as a whole, and through the control unit The fan and the indicator light are electrically connected, so that the control unit controls the opening and closing of the fan and the adjustment of the rotational speed, and correspondingly controls the opening and closing of the indicator light, the adjustment of the brightness of the light and the adjustment of the color of the light, so that the The automation and humanization of the range hood can be effectively improved, thus greatly improving the user experience of using the range hood.

For a further understanding of the features and technical content of the present invention, please refer to the following detailed descriptions and drawings of the present invention. However, the drawings provided are only for reference and description, and are not intended to limit the present invention.

The following are specific specific examples to illustrate the embodiments disclosed in the present invention, and those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are merely schematic illustrations, and are not drawn according to the actual size, and are stated in advance. The following embodiments will further describe the related technical contents of the present invention in detail, but the disclosed contents are not intended to limit the protection scope of the present invention. In addition, the term "or", as used herein, should include any one or a combination of more of the associated listed items, as the case may be.

Please refer to FIG. 1 and FIG. 2 , the present invention provides a separate range hood. As shown in FIG. 1, the separate range hood provided by the present invention basically includes a smoke collecting body 1, a pressurized exhaust pipe 2, an air collecting body 3, an air exhaust duct 4, a fan 5, a Indicator light 6 , and a control unit 7 . Moreover, the separated range hood provided by the present invention is a range hood in which the fan 5 is separated from the smoke collecting body 1 .

The smoke collecting body 1 is used to be installed above the heating furnace H. In this embodiment, the fume collecting body 1 may be a fume collecting hood, that is, a hood with an opening formed at the bottom, so that the oil fume in the kitchen can be inhaled from the bottom of the fume collecting body 1 . The shape of the smoke collecting body 1 in this embodiment is not limited, and can be changed according to actual needs. In this embodiment, the smoke collecting body 1 is substantially rectangular.

One end of the air collecting body 3 is connected to the smoke collecting body 1 by the pressurized exhaust pipe 2, and the fan 5 is arranged in the air collecting body 3, so that the fan 5 is connected to the air collecting body 3. The body 3 is far away from the smoke collecting body 1 so as to reduce the noise of the smoke collecting body 1 . In addition, the pressurized exhaust pipe 2 has a bent portion to prevent the smoke collected by the smoke collecting body 1 from directly rushing towards the fan 5 and the air collecting body 3 to be polluted.

Furthermore, the two ends of the air collecting body 3 have an air collecting port 31 and an air outlet 32, and the air collecting body 3 can also be provided with a plurality of air collecting ports, for example, at the top and bottom of the air collecting body 3, etc. There are air collecting vents at the location, and each air collecting vent can be opened or closed according to actual needs. In this embodiment, the air collecting port 31 at one end of the air collecting body 3 is connected to the smoke collecting body 1 by the pressurized exhaust pipe 2 , and the air outlet 32 at the other end of the air collecting body 3 is connected to the smoke collecting body 1 . Exhaust duct 4. When the fan 5 installed in the air collector 3 is running, the smoke can pass through the smoke collecting body 1 , the pressurized exhaust pipe 2 , the air collecting port 31 , and the air outlet 32, and the exhaust duct 4 is discharged outdoors.

The indicator light 6 and the control unit 7 are usually arranged on the smoke collecting body 1, but may not be arranged on the smoke collecting body 1, and can be independent devices. The control unit 7 may be fixed or separate. The indicator light 6 can be an atmosphere light, and the number and form of the indicator light 6 are not limited, and can be appropriately changed according to needs. The control unit 7 is electrically connected to the indicator light 6 and the fan 5 , and the control unit 7 can be used to control the opening and closing of the fan 5 and the adjustment of the rotational speed, and the control unit 7 can be used to Control the opening and closing of the indicator light 6, the adjustment of the brightness of the light and the adjustment of the color of the light.

Furthermore, the control unit 7 can wirelessly or wiredly control the opening and closing of the fan 5 and the adjustment of the rotational speed, and can also wirelessly or wiredly control the opening and closing of the indicator light 6, the adjustment of the brightness of the light and the adjustment of the color of the light. adjust.

Further, the control unit 7 is electrically connected to a first wireless signal transceiver 8, the fan 5 is electrically connected to a second wireless signal transceiver 9, and the control unit 7 transmits the first wireless signal through the control unit 7. The transceiver 8 sends out a wireless signal, and the fan 5 receives the wireless signal through the second wireless signal transceiver 9 . Wherein, the wireless signal can be a bluetooth signal, a Wi-Fi signal, an infrared signal, a UWB (ultra-wideband) signal, an RFID (radio frequency identification) signal, an RF (radio frequency) signal, a GPRS (General Packet Radio Service) signal, One of Zig-Bee (Zigbee) signal, NFC (Near-field communication) signal and Z-Wave signal.

Furthermore, the control unit 7 can further receive an external wireless signal through the first wireless signal transceiver 8, such as an external wireless signal sent by a remote control or a mobile phone, and can control the external wireless signal according to the external wireless signal. The opening and closing of the fan 5 and the adjustment of the rotational speed and the corresponding control of the opening and closing of the indicator light 6, the adjustment of the brightness of the light and the adjustment of the color of the light. The external wireless signal may be one of a Bluetooth signal, a Wi-Fi signal, an infrared signal, a UWB signal, an RFID signal, an RF signal, a GPRS signal, a Zig-Bee signal, an NFC signal, and a Z-Wave signal.

In an embodiment, with reference to FIG. 3 , an infrared temperature detector 11 electrically connected to the control unit 7 may be provided at a suitable position of the smoke collecting body 1 , such as the bottom, and the infrared temperature detector 11 . The detector 11 can be used to detect the temperature under the smoke collecting body 1 and feed it back to the control unit 7 so that the control unit 7 can automatically control the fan according to the temperature fed back by the infrared temperature detector 11 5, that is, the operation of the fan 5 can be automatically controlled according to the temperature generated by the heating furnace H under the smoke collecting body 1. When the temperature fed back by the infrared temperature detector 11 is a low temperature (the first temperature ), control the rotating speed of the fan 5 to be a low speed (first rotating speed); when the temperature fed back by the infrared temperature detector 11 is a medium temperature (second temperature), control the rotating speed of the fan 5 to be a medium speed (second rotation speed); when the temperature fed back by the infrared temperature detector 11 is high temperature (third temperature), the rotation speed of the fan 5 is controlled to be high speed (third rotation speed).

Furthermore, the control unit 7 can further control the fan 5 to continue to run for a period of time before stopping, in order to quickly Remove residual heat. In addition, the control unit 7 can also control the fan 5 to continue to run for a period of time before stopping when receiving the shutdown signal, so as to quickly remove the residual heat.

In one embodiment, the control unit 7 is further configured to control the light brightness of the indicator light 6 to be low brightness (first brightness) when controlling the rotational speed of the fan 5 to be low, and to control the light brightness of the fan 5 to be low (first brightness). When the rotating speed is a medium speed, the light brightness of the indicator light 6 is controlled to be medium brightness (second brightness), and when the rotation speed of the fan 5 is controlled to be high speed, the light brightness of the indicator light 6 is controlled to be high brightness (third brightness). Brightness), which allows users to intuitively understand the current fan speed through different light brightness.

In different embodiments, the control unit 7 is configured to control the light color of the indicator light 6 to be green (the first light color) when controlling the rotational speed of the fan 5 to be low, and to control the light color of the fan 5 to be green (the first light color). When the rotating speed is a medium speed, the light color of the indicator light 6 is controlled to be blue (the second light color), and when the rotational speed of the fan 5 is controlled to be high speed, the light color of the indicator light 6 is controlled to be red (the third light color). light color), which allows users to understand the current fan speed more intuitively through different light colors.

In one embodiment, referring to FIG. 4 , an indicator light rotating motor 12 electrically connected to the control unit 7 may be provided at an appropriate position of the indicator light 6 , such as the top or the side, and the smoke collecting A human body sensor 13 electrically connected to the control unit 7 can be provided at a suitable position of the main body 1 , such as the bottom or the side. The human body sensor 13 can be used to sense the surrounding area of the smoke collecting body 1 According to the human body position information fed back by the human body sensor 13, the control unit 7 can control the indicator light rotation motor 12 to control the rotation of the indicator light 6, so as to follow the human body into the set The peripheral area of the cigarette body 1 and the peripheral area of the smoke collecting body 1 are separated to control the display and rotation of the indicator light 6, so that the user can The indicator light 6 is clearly viewed by the indicator light 6 which can be rotated automatically. Moreover, in addition to controlling the rotation of the indicator light 6 according to the human body position information fed back by the human body sensor 13 , the control unit 7 can also control the indication according to the human body position information fed back by the human body sensor 13 The opening and closing of the light 6, the adjustment of the brightness of the light and the adjustment of the color of the light make the light intensity, frequency and light color of the indicator light 6 change with the position information of the human body.

In one embodiment, referring to FIG. 5 , a PM2.5 concentration detection device 14 electrically connected to the control unit 7 may be provided at an appropriate position of the smoke collecting body 1 , such as the bottom or the side, etc. And the PM2.5 concentration detection device 14 can be used to detect PM2.5 concentration information in the air and feed it back to the control unit 7 . In addition, the control unit 7 is configured to control the PM2.5 concentration detection device 14 to start detection when receiving the human body position information fed back by the human body sensor 13, and to control the PM2. Control the PM2.5 concentration detection device 14 to turn off the detection when the body position information fed back by the detector 13 is detected, and after the PM2.5 concentration detection device 14 starts the detection, according to the PM2.5 concentration detection device 14 When the feedback of PM2.5 concentration information is judged to be greater than the preset threshold, control the fan to start, thereby forming a negative pressure in the room, achieving indoor air circulation and reducing the PM2.5 concentration, so as to effectively remove the PM2.5 concentration when there are people PM2.5 improves air quality rapidly.

Furthermore, the control unit 7 can also control the opening and closing of the indicator light 6 and the adjustment of the color of the light according to the PM2.5 concentration information fed back by the PM2.5 concentration detection device 14, so that the indicator light 6 can be turned on and off. Light color changes with PM2.5 concentration information.

In one embodiment, referring to FIG. 6 , a carbon monoxide detection device 15 electrically connected to the control unit 7 may be provided at a suitable position of the smoke collecting body 1 , such as the bottom or the side, and the The carbon monoxide detection device 15 can be used to detect the carbon monoxide concentration information in the air and feed it back to the control unit 7, and the control unit 7 judges that the carbon monoxide concentration information fed back by the carbon monoxide detection device 15 is greater than a preset threshold value, The fan 5 is controlled to start, thereby forming a negative pressure in the room, so as to achieve indoor air circulation and reduce the concentration of carbon monoxide. In addition, a carbon dioxide detection device 16 electrically connected to the control unit 7 may also be provided at an appropriate position of the smoke collecting body 1 , such as the bottom or the side, and the carbon dioxide detection device 16 can be used to detect air The carbon dioxide concentration information is fed back to the control unit 7, and when the control unit 7 judges that the carbon dioxide concentration information fed back by the carbon dioxide detection device 16 is greater than a predetermined threshold value, it controls the fan 5 to start, thereby making the indoor Form negative pressure to achieve indoor air circulation to reduce carbon dioxide concentration.

Furthermore, the control unit 7 can also control the opening and closing of the indicator light 6 according to the carbon monoxide concentration information fed back by the carbon monoxide detecting device 15 and the carbon dioxide concentration information fed back by the carbon dioxide detecting device 16 , respectively. Light color display.

In addition, a bluetooth audio device 17 electrically connected to the control unit can be provided at an appropriate position of the smoke collecting body 1, such as the bottom or the side, which can be connected with a mobile phone to play the audio sent from the mobile phone. It also makes cooking a pleasure.

[Advantageous effects of the embodiment]

The beneficial effect of the present invention is at least that, the separated range hood provided by the present invention is a range hood in which the fan 5 is separated from the smoke collecting body 1, which effectively reduces the noise of the range hood as a whole, and through the The control unit 7 is electrically connected to the fan 5 and the indicator light 6, so that the control unit 7 controls the opening and closing of the fan 5 and the adjustment of the rotational speed, and controls the opening and closing of the indicator light 6 and the brightness of the light. The adjustment and adjustment of the light color can effectively improve the automation and humanization of the range hood, thus greatly improving the user experience of using the range hood.

The contents disclosed above are only preferred feasible embodiments of the present invention, and are not intended to limit the scope of the present invention. Therefore, any equivalent technical changes made by using the contents of the description and drawings of the present invention are included in the application of the present invention. within the scope of the patent.

1: Smoke collection body 2: Pressurized exhaust line 3: wind collector 31: air outlet 32: air outlet 4: Exhaust duct 5: Fan 6: Indicator light 7: Control unit 8: The first wireless signal transceiver 9: Second wireless signal transceiver 11: Infrared temperature detector 12: Indicator light rotation motor 13: Human body sensor 14: PM2.5 concentration detection device 15: Carbon monoxide detection device 16: Carbon dioxide detection device 17:Bluetooth audio device H: heating stove

FIG. 1 is a schematic diagram of a separate range hood of the present invention.

FIG. 2 is a functional block schematic diagram (1) of the separated range hood of the present invention.

FIG. 3 is a functional block schematic diagram (2) of the separated range hood of the present invention.

FIG. 4 is a functional block schematic diagram (3) of the separated range hood of the present invention.

FIG. 5 is a functional block schematic diagram (4) of the separated range hood of the present invention.

FIG. 6 is a functional block diagram (5) of the separated range hood of the present invention.

1: Smoke collection body 2: Pressurized exhaust line 3: wind collector 31: air outlet 32: air outlet 4: Exhaust duct 5: Fan 6: Indicator light 7: Control unit 8: The first wireless signal transceiver 9: Second wireless signal transceiver H: heating stove

Claims (12)

A separate range hood includes: a smoke collecting body, a pressurized exhaust pipe, an air collecting body, an air exhaust duct, a fan, an indicator light, and a control unit. When installed above the heating furnace, one end of the air collecting body is connected to the smoke collecting body by the pressurized exhaust pipe, the other end of the air collecting body is connected to the air exhaust duct, and the fan is arranged at the In the wind collector, the control unit is electrically connected to the fan and the indicator light, and the control unit can be used to control the opening and closing of the fan and the adjustment of the rotational speed, and can be used to control the indicator light The opening and closing of the device and the adjustment of the brightness of the light; wherein the indicator light is provided with an indicator light rotating motor that is electrically connected to the control unit, and the smoke collecting body is provided with a human body sensor that is electrically connected to the control unit. The human body sensor can be used to sense the human body position information in the surrounding area of the smoke collecting body, and the control unit can control the indicator light rotation motor according to the human body position information fed back by the human body sensor to control the The rotation of the indicator light is used to control the rotation of the indicator light as the human body enters the peripheral area of the smoke collecting body and leaves the peripheral area of the smoke collecting body; wherein the smoke collecting body is provided with a The PM2.5 concentration detection device of the control unit, and the PM2.5 concentration detection device can be used to detect PM2.5 concentration information in the air and feed it back to the control unit, and the control unit is configured to receive Controlling the PM2.5 concentration detection device to start detection when the body position information fed back by the body sensor is received, and controlling the PM2.5 when the body position information fed back by the body sensor is not received The concentration detection device closes the detection, and when the PM2.5 concentration information fed back by the PM2.5 concentration detection device is judged to be greater than the preset threshold after the PM2.5 concentration detection device starts the detection, the control system is controlled. The fan is started, thereby forming a negative pressure in the room to achieve indoor air circulation and reduce PM2.5 concentration. The separate range hood according to claim 1, wherein the control unit is electrically A first wireless signal transceiver is connected, the fan is electrically connected with a second wireless signal transceiver, the control unit sends a wireless signal through the first wireless signal transceiver, and the fan passes through the first wireless signal transceiver. Two wireless signal transceivers receive the wireless signal. The detachable range hood according to claim 2, wherein the wireless signal sent by the control unit through the first wireless signal transceiver is a bluetooth signal, a Wi-Fi signal, an infrared signal, a UWB signal, an RFID signal One of signal, RF signal, GPRS signal, Zig-Bee signal, NFC signal, Z-Wave signal. The detachable range hood according to claim 2, wherein the control unit receives an external wireless signal through the first wireless signal transceiver, and can control the opening and closing and the opening and closing of the fan according to the external wireless signal. The adjustment of the rotational speed and the corresponding control of the opening and closing of the indicator light, the adjustment of the brightness of the light and the change of the color of the light. The detachable range hood according to claim 4, wherein the external wireless signals received by the control unit through the first wireless signal transceiver are Bluetooth signals, Wi-Fi signals, infrared signals, UWB signals, One of RFID signal, RF signal, GPRS signal, Zig-Bee signal, NFC signal, Z-Wave signal. The detachable range hood according to claim 1, wherein the smoke collecting body is provided with an infrared temperature detector electrically connected to the control unit, and the infrared temperature detector can be used to detect the smoke collecting The temperature under the body is fed back to the control unit, so that the control unit can automatically control the operation of the fan according to the temperature fed back by the infrared temperature detector. When the temperature fed back by the infrared temperature detector is When the temperature is the first, the rotation speed of the fan is controlled to be the first rotation speed; when the temperature fed back by the infrared temperature detector is the second temperature, the rotation speed of the fan is controlled to be the second rotation speed; When the temperature fed back by the sensor is the third temperature, the rotational speed of the fan is controlled to be the third rotational speed. The detachable range hood according to claim 6, wherein the control unit is further capable of controlling the fan to continue when it is judged that the temperature drop change per unit time is greater than a certain value according to the temperature fed back by the infrared temperature detector. It stops after running for a while. The detachable range hood according to claim 1, wherein the control unit can control the opening and closing of the indicator light and the adjustment of the color of the light according to the PM2.5 concentration information fed back by the PM2.5 concentration detection device, The light color of the indicator light is changed according to the PM2.5 concentration information fed back by the PM2.5 concentration detection device. The detachable range hood according to claim 1, wherein the smoke collecting body is provided with a carbon monoxide detection device electrically connected to the control unit, and the carbon monoxide detection device can be used to detect information on the concentration of carbon monoxide in the air and feedback it to the control unit, and the control unit judges that the carbon monoxide concentration information fed back by the carbon monoxide detection device is greater than the preset threshold value, and controls the fan to start, so as to form a negative pressure in the room to achieve indoor air Cycling reduces the carbon monoxide concentration. The detachable range hood according to claim 9, wherein the smoke collecting body is provided with a carbon dioxide detection device electrically connected to the control unit, and the carbon dioxide detection device can be used to detect carbon dioxide concentration information in the air and feedback it to the control unit, and the control unit determines that the carbon dioxide concentration information fed back by the carbon dioxide detection device is greater than a predetermined threshold, and controls the fan to start, thereby forming a negative pressure in the room and achieving indoor air circulation. Reduce carbon dioxide concentration. The separable range hood according to claim 10, wherein the control unit is capable of collecting carbon monoxide concentration information fed back by the carbon monoxide detecting device and the carbon monoxide concentration information. The carbon dioxide concentration information fed back by the carbon dioxide detection device controls the opening and closing of the indicator lights and displays them in different light colors. The detachable range hood according to claim 1, wherein the smoke collecting body is provided with a bluetooth audio device electrically connected to the control unit, which can be connected with a mobile phone to play the incoming audio.

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