Range hood

Abstract

The application relates to the household appliance technical field, in particular to a range hood, which comprises a shell, a plurality of detection assemblies arranged in the circumference of the shell, and a controller arranged on the shell; the detection assembly comprises a distance detection device and a prompt fan, and the distance detection device and the prompt fan are arranged adjacently; the air outlet direction of the prompt fan is towards the detection direction of the distance detection device; the distance detection device is provided with a detection range; when the distance detection device detects that there is a to-be-detected object in the detection range, the controller controls the prompt fan to start and generate air flow. In the embodiment, the distance detection device can respond in advance when the to-be-detected object, such as a user's head, enters the detection range and does not contact the shell, and the air outlet direction of the prompt fan is consistent with the detection direction, so that when the user's head approaches the shell, the high-pressure strong air flow generated by the prompt fan can accurately and quickly touch the user's head, thereby directly prompting the collision risk through physical touch.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, specifically to a range hood. Background Technology

[0002] With economic development, range hoods have become an indispensable kitchen appliance in homes. However, due to the shape and installation limitations of some types of range hoods, users face the risk of head injuries from collisions. Furthermore, the most vulnerable areas to impact are often the sharp edges and corners of the range hood, causing pain or even head injuries.

[0003] However, although some range hoods on the market currently use warning lights, sounds, or other warning methods to remind users to avoid collisions, these methods are easily confused by the operating noise of the range hood and its own lights, resulting in ineffective warnings and users still experiencing head collisions with the range hood.

[0004] Therefore, this application provides a range hood that reminds users to avoid collisions using a novel reminder method. Summary of the Invention

[0005] In view of this, this application provides a range hood to solve the problem in the prior art where the user's head is easily bumped into the edge of the range hood, causing pain or even injury.

[0006] In a first aspect, this application provides a range hood, which includes:

[0007] case;

[0008] The controller is mounted on the housing;

[0009] Multiple detection components are arranged around the periphery of the housing; each detection component includes a distance detection device and an alert fan. The distance detection device and the alert fan of each detection component are simultaneously connected to the controller. The distance detection device and the alert fan are arranged adjacent to each other, and the air outlet direction of the alert fan is towards the detection direction of the distance detection device.

[0010] The distance detection device is set with a detection range. When the distance detection device detects an object to be detected within the detection range, the controller prompts the fan to start and generate airflow.

[0011] Beneficial Effects: In this embodiment, the distance detection device can respond in advance when the object to be detected, such as a user's head, enters the detection range but has not yet contacted the housing. Furthermore, the airflow direction of the alert fan is consistent with the detection direction, ensuring that when the user's head approaches the housing, the high-pressure, powerful airflow generated by the alert fan can accurately and quickly reach the user's head, thus providing a direct physical warning of collision risk. Simultaneously, the high-pressure, powerful airflow generated by the alert fan has sufficient thrust to push the user's head back, thereby preventing the user from colliding with the housing. Moreover, compared to existing light and sound alerts, this embodiment provides proactive warnings to the user through airflow and airflow resistance, using both tactile and behavioral feedback. The high-pressure, powerful airflow has sufficient thrust to push the user's head back, preventing it from continuing in its original direction and giving the user enough time to avoid the collision, fundamentally reducing the probability of collision. Furthermore, the alert fan can overcome environmental barriers such as kitchen noise and fumes, ensuring that the user perceives the alert.

[0012] In one alternative embodiment, the housing is provided with a smoke collection chamber, and the detection component is disposed circumferentially along the inner edge of the smoke collection chamber, and / or along the outer edge of the smoke collection chamber.

[0013] Beneficial effects: This embodiment sets the detection components around the inner and outer edges of the smoke collection chamber, achieving comprehensive coverage of high-collision areas. This covers both the inner cooking scenario and the outer non-cooking scenario, ensuring that the smoke collection chamber can be detected and alerted in a timely manner no matter which direction the user approaches from, greatly improving the safety of the range hood.

[0014] In one alternative embodiment, a plurality of first detection components are provided on the front end face of the housing, and a first prompting fan in the first detection component blows air downward in a vertical direction.

[0015] Beneficial effects: When a user looks down while cooking and then looks up again, their head moves upwards towards the edge of the front end face. At this moment, the first warning fan can blow air vertically downwards. Because the airflow direction is completely opposite to the head movement direction, it can directly blow air onto the user's forehead or top of their head, creating a strong physical tactile warning. Simultaneously, the high-pressure, strong airflow generated by the warning fan can also push the user's head in the opposite direction, thus preventing the user from colliding with the casing. Furthermore, the vertically downward airflow can quickly reach the user's head within a certain range of the casing, allowing the user to perceive the risk through touch without visual confirmation. This shorter reaction time significantly reduces the probability of collisions with the front end face of the casing.

[0016] In one alternative embodiment, a plurality of second detection components are provided on the sides of both sides of the housing, and the second prompting fan in the second detection component is inclined downward toward the front end face of the housing to discharge air.

[0017] Beneficial effects: Since users frequently move between the stove, refrigerator, and cupboards while cooking, they may approach the range hood from the sides, their heads likely angled towards the edges of the casing. Therefore, by tilting the second warning fan downwards along the front end of the casing, the angled airflow can preemptively target the user's face or shoulder as they approach from the side, alerting them to the side edges. Furthermore, the high-pressure, strong airflow generated by the second warning fan counteracts the user's movement, preventing collisions with the casing and thus enhancing the overall protective effect of the range hood.

[0018] In one alternative implementation, when the distance detection device detects an object to be detected within the detection range, it prompts the fan to start for a first preset time.

[0019] Beneficial Effects: This embodiment sets a designated time for the fan to start, ensuring the user clearly receives the notification within that duration. Furthermore, while maintaining the effectiveness of the notification, the brief operation reduces power consumption, achieving a balance between low energy consumption and user experience. If the fan runs continuously, it will rapidly deplete the battery during non-cooking periods, potentially preventing the battery from supporting the fan's operation at other times. Additionally, if the notification is accidentally triggered, the continuous airflow might interfere with or disperse the stove flame, affecting cooking operations.

[0020] In one alternative implementation, the range hood further includes:

[0021] An alarm device is mounted on the housing; and the alarm device is electrically connected to all distance detection devices via a controller.

[0022] When one of the distance detection devices detects an object within its detection range, the controller activates the alarm device and sends an alarm message.

[0023] Beneficial effects: Single-mode alerts, such as only audible alarms or only structural buffers, have limitations. Audible alarms may be masked by the noise of the range hood during cooking, causing users to miss them. Alternatively, some users may not be sensitive to the tactile feedback of the airflow and may ignore the fan alert. In this solution, when either detection device is triggered, the alarm and airflow can be activated simultaneously, providing a dual-mode warning and significantly reducing the risk of collision for the user.

[0024] In one alternative implementation, when one of the distance detection devices detects an object to be detected within the detection range, the alarm device activates for a second preset duration.

[0025] Beneficial effects: This embodiment, by setting a second preset duration for alarm device activation, ensures that the user receives alarm information while avoiding continuous noise interference with the kitchen environment. If the alarm device operates continuously, it will generate noise pollution during non-cooking periods, and during cooking periods, continuous noise may exacerbate the noisy kitchen environment, affecting the user experience.

[0026] In one alternative implementation, the range hood further includes:

[0027] The power supply components are connected to the controller, alarm device, and all detection components.

[0028] Beneficial effects: In this embodiment, the power supply component is connected to the controller, alarm device and all detection components at the same time. The unified power supply component can ensure that all components are powered synchronously. When the power is on, all components are ready at the same time. When the power is not on, all components stop operating synchronously. This can avoid the hidden danger of partial functional failure and improve the overall reliability of the system.

[0029] In one alternative implementation, the power supply component includes:

[0030] The battery has one end connected to the power supply port of the range hood, and the other end connected to the controller, alarm device, and all detection components.

[0031] Beneficial Effects: During non-cooking periods, such as routine cleaning and food preparation, the range hood is often not turned on, making it a high-risk time for collisions. If relying solely on the range hood's main power supply, the controller, detection components, and alarm devices will malfunction due to power loss when not cooking. In this embodiment, the battery is charged through the power port when the range hood is on, ensuring sufficient power. When the range hood is off or not plugged in, the battery independently powers the controller, detection components, and alarm devices, allowing the range hood's anti-collision function to continue working normally during non-cooking periods. This design covers all times of daily life, ensuring the anti-collision function remains effective at all times.

[0032] In one alternative implementation, the power supply assembly further includes:

[0033] The first switch has one end connected to the other end of the battery and the other end connected to all the detection components.

[0034] The second switch has one end connected to the other end of the battery and the other end connected to the alarm device.

[0035] Beneficial effects: This embodiment is equipped with two independent switches, which allow users to freely combine modes according to their actual needs. For example, the entire anti-collision system can be turned off, or only the warning fan can be turned on to provide a blowing reminder, or only the alarm device can be turned on to provide an alarm reminder, or both the warning fan and the alarm device can be turned on at the same time. This can meet the different needs of users and improve user experience and market acceptance. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the overall structure of the smoke machine in the embodiments of this application;

[0038] Figure 2 This is a schematic diagram of the interior of the smoke machine in an embodiment of this application.

[0039] Explanation of reference numerals in the attached figures:

[0040] 10. Shell; 11. End face; 12. Side face;

[0041] 20. Detection component; 21. First detection component; 211. First distance detection device; 212. First alerting fan; 22. Second detection component; 221. Second distance detection device; 222. Second alerting fan;

[0042] 30. Alarm device;

[0043] 40. Power supply assembly; 41. Battery; 42. First switch; 43. Second switch;

[0044] 50. Power supply port. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0046] In the description of this application, it should be noted that the terms "inner," "upper," "outer," "lower," "underneath," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "communication" should be interpreted broadly. For example, they can refer to fixed communication, detachable communication, or integral communication; they can refer to mechanical communication or electrical communication; they can refer to direct connection or indirect connection through an intermediate medium; they can refer to communication within two components; and they can refer to wireless communication or wired communication. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0048] With economic development, range hoods have become an indispensable kitchen appliance in homes. However, due to the shape and installation limitations of some types of range hoods, users face the risk of head injuries from collisions. Furthermore, the most vulnerable areas to impact are often the sharp edges and corners of the range hood, causing pain or even head injuries.

[0049] For example, in real life, some types of range hoods, such as top-mounted range hoods, have a smoke collection chamber placed above the cookware. Due to their shape design and the limitations of home installation, there is a possibility of head collision during use.

[0050] For example, users need to move around frequently during the cooking process, which involves stir-frying, seasoning, preparing ingredients, and plating. This requires users to frequently move between the stove, sink, refrigerator, cupboard, and condiment cabinet, increasing the probability of users bumping into the range hood.

[0051] For example, the range hood does not make any operating noise during non-cooking periods, which makes it easy for users to overlook its existence while cleaning or preparing food in the kitchen, greatly increasing the probability of bumping into it.

[0052] However, although some range hoods on the market currently use warning lights, sounds, or other methods to alert users to avoid collisions, these methods are easily confused by the operating noise and built-in lights of the range hood, resulting in ineffective warnings and users still experiencing head injuries from collisions. Therefore, this application provides a range hood that uses a novel warning method to alert users to avoid collisions.

[0053] In view of this, this application provides a range hood to solve the problem in the prior art where the user's head is easily bumped into the edge of the range hood, causing pain or even injury.

[0054] The following is combined with Figures 1 to 2 This describes an embodiment of the present application.

[0055] like Figures 1 to 2 As shown, according to an embodiment of this application, in one aspect, this application provides a smoke hood, which includes a housing 10 and a plurality of detection components 20.

[0056] Specifically, in this embodiment, the housing 10 is the outer shell of the range hood, and it has a smoke-collecting chamber. A smoke extraction fan and a controller for controlling the overall operation of the range hood can be installed inside the housing 10. The housing 10 of the range hood is usually a regular rectangular structure, so users are prone to pain or even injury when they touch the sharp edges of the housing 10.

[0057] Furthermore, in this embodiment, multiple detection components 20 are disposed around the periphery of the housing 10. For example, the multiple detection components 20 can be evenly disposed around the periphery of the edge of the housing 10. That is, detection components 20 can be disposed on the end face 11 on the front side and the side faces 12 on both sides of the housing 10. The rear side of the housing 10 is usually in contact with the wall, and the user will not touch the rear edge, so it is not necessary to provide them on the rear side of the housing 10.

[0058] Of course, the number of detection components 20 provided on each side of the housing 10 can be one, two, three, four, five, etc. This embodiment is just an example, but it is not a limitation. Those skilled in the art can make changes according to the actual situation, as long as the same technical effect can be achieved.

[0059] Furthermore, in this embodiment, the controller is mounted on the housing, and the detection component 20 includes a distance detection device and a prompting fan. The controller is communicatively connected to both the distance detection device and the prompting fan, and the distance detection device and the prompting fan are arranged adjacent to each other. The air outlet direction of the prompting fan faces the detection direction of the distance detection device. The air outlet direction of the prompting fan only needs to be able to blow into the detection range so that users entering the detection range can perceive it. Of course, the air outlet direction of the prompting fan can also be set to the same direction as the detection direction of the distance detection device. The distance detection device has a detection range. When the distance detection device detects an object to be detected within the detection range, the prompting fan starts and generates airflow.

[0060] In other words, each detection device corresponds to a corresponding alert fan. The distance detection device detects whether there is an object to be detected in the area and sends the detection result to the controller in the form of a signal. The controller then controls the alert fan to start and stop based on the detection result. Each detection component 20 operates independently and will not affect each other. For example, if the distance detection device in the first detection component 20 detects an object to be detected, then the alert fan in the first detection component 20 will start. If the distance detection device in the second detection component 20 does not detect an object to be detected, then the alert fan in the second detection component 20 will not start.

[0061] The fan generates a high-pressure, powerful airflow. This high-pressure, powerful airflow has sufficient thrust to push the user's head back, thus providing a degree of protection.

[0062] The communication connection between the controller, the distance detection device, and the alerting fan can be wireless or wired communication. Of course, this embodiment is merely an example illustrating specific values ​​for the detection range, and is not intended to limit the scope. Those skilled in the art can modify it according to actual circumstances, as long as the same technical effect is achieved.

[0063] The specific detection range, that is, the trigger safety limit of the distance detection device, can be set to 10mm, 20mm, 30mm, 40mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, etc. Of course, this embodiment is only an example of the specific values ​​of the detection range, but it is not a limitation. Those skilled in the art can change it according to the actual situation, as long as the same technical effect is achieved.

[0064] In this configuration, the distance detection device can respond in advance when the object to be detected, such as a user's head, enters the detection range but has not yet touched the housing 10. Furthermore, the airflow direction of the alert fan is consistent with the detection direction, ensuring that when the user's head approaches the housing 10, the high-pressure, strong airflow generated by the alert fan can accurately and quickly reach the user's head, providing a direct physical warning of the risk of collision. Simultaneously, the high-pressure, strong airflow generated by the alert fan has sufficient thrust to push the user's head back, thus preventing a collision with the housing 10. Moreover, compared to existing light and sound alerts, this embodiment provides proactive warnings to the user through airflow and airflow resistance, both tactilely and behaviorally. The high-pressure, strong airflow also has sufficient thrust to push the user's head back, preventing it from continuing in its original direction and giving the user enough time to avoid the collision, fundamentally reducing the probability of a collision. Furthermore, the alert fan can overcome environmental barriers such as kitchen noise and fumes, ensuring that the user perceives the alert.

[0065] Of course, as an optional implementation, the distance detection device can also control the airflow pressure generated by the prompting fan based on the actual distance between the object to be detected and the distance detection device. The smaller the actual distance between the object to be detected and the distance detection device, the closer the user is to the housing 10, and the greater the airflow pressure of the prompting fan can be. The greater the actual distance between the object to be detected and the distance detection device, the farther the user is from the housing 10, and the lower the airflow pressure of the prompting fan can be, until it is turned off.

[0066] Of course, this embodiment is merely an example to illustrate the wind pressure generated by the fan, but it does not limit the scope of the invention. Those skilled in the art can make changes according to the actual situation, as long as the same technical effect can be achieved.

[0067] Furthermore, in an optional embodiment, the housing 10 is provided with a smoke collection chamber, and the detection component 20 is disposed on the inner edge circumferential direction and the outer edge circumferential direction of the smoke collection chamber.

[0068] Of course, the detection component 20 can also be placed either circumferentially at the inner edge of the smoke collection chamber or circumferentially at the outer edge of the smoke collection chamber. This embodiment is merely an example of the specific placement of the detection component 20, but it is not a limitation. Those skilled in the art can make changes according to the actual situation, as long as the same technical effect is achieved.

[0069] With this configuration, the detection component 20 is placed around the inner and outer edges of the smoke collection chamber, achieving comprehensive coverage of high-collision areas. This allows for coverage of both the inner cooking scenario and the outer non-cooking scenario, ensuring that the smoke collection chamber can be detected and alerted in a timely manner regardless of the direction from which the user approaches, thus significantly improving the safety of the range hood.

[0070] Furthermore, in an optional embodiment, a plurality of first detection components 21 are provided on the front end face 11 of the housing 10, and the first prompting fan 212 in the first detection component 21 blows air downward in a vertical direction. That is to say, when the user is cooking, his head is usually at the bottom of the range hood, so the first distance detection device 211 in the first detection component 21 needs to detect the bottom of the housing 10, thereby preventing the user from bumping into the range hood when he looks up after looking down.

[0071] Furthermore, the first detection component 21 will only react to objects in the vertical direction at the bottom of the housing 10, and will not react to objects in the horizontal direction. This avoids activating the anti-collision function when the range hood panel located on the end face 11 is being operated normally, thus minimizing the impact of the first detection component 21 on the normal use of the range hood.

[0072] With this design, when a user looks down while cooking and then looks up again, their head moves upwards towards the edge of the front end face 11. At this moment, the first alert fan 212 can blow air downwards vertically. Since the airflow direction is completely opposite to the head movement direction, it can directly blow towards the user's forehead or top of their head, creating a strong physical tactile alert. Simultaneously, the high-pressure, strong airflow generated by the alert fan can also push the user's head in the opposite direction, thus preventing the user from colliding with the housing 10. Furthermore, the vertically downward airflow can quickly reach the user's head within a certain range from the housing 10, allowing the user to perceive the risk through touch without visual confirmation. This shorter reaction time significantly reduces the probability of collision with the front end face 11 of the housing 10.

[0073] Furthermore, in an optional embodiment, multiple second detection components 22 are provided on the side surfaces 12 of both sides of the housing 10. The second prompting fan 222 in the second detection component 22 tilts downward along the end face 11 to discharge air. The detection components 20 on the side surfaces 12 are designed to take into account the possibility of collisions from other directions. The second distance detection device 221 in the second detection component 22 also tilts downward toward the end face 11 to perform detection, and the air outlet of the second prompting fan 222 is also provided in the same way.

[0074] With this design, since users frequently move between the stove, refrigerator, and cupboard while cooking, they may approach the range hood from the sides 12, with their heads angled towards the edges of the sides 12. Therefore, tilting the second warning fan 222 downwards towards the end face 11 allows the tilted airflow to blow towards the user's face or shoulder in advance when they approach from the sides 12, alerting them to the edges of the sides 12. Furthermore, the high-pressure, strong airflow generated by the second warning fan 222 pushes the user's body in the opposite direction, preventing them from colliding with the housing 10 and thus improving the overall protective effect of the range hood.

[0075] Furthermore, in one optional implementation, when the distance detection device detects an object to be detected within the detection range, it prompts the fan to start for a first preset duration. The specific value of the first preset duration can be 2 seconds, 2.5 seconds, 3 seconds, 3.5 seconds, 4 seconds, etc. Of course, this embodiment is merely an example of the specific value of the first preset duration, but it is not intended to limit the scope. Those skilled in the art can modify it according to actual circumstances, as long as the same technical effect is achieved.

[0076] With this configuration, this embodiment ensures that the user clearly receives the notification when the fan starts for a certain duration. Furthermore, while ensuring the effectiveness of the notification, the short-duration operation reduces power consumption, achieving a balance between low energy consumption and user experience. If the fan runs continuously, it will rapidly deplete the battery 41 during non-cooking periods, potentially preventing the battery from supporting the fan's operation at other times. Moreover, if it's a false trigger, the continuous airflow might interfere with or disperse the stove flame, thus affecting cooking operations.

[0077] Furthermore, in an optional embodiment, the range hood also includes an alarm device 30, which is mounted on the housing 10 and electrically connected to all distance detection devices via a controller. When one of the distance detection devices detects an object within its detection range, the controller activates the alarm device 30 and issues an alarm message.

[0078] In other words, not all distance detection devices need to detect the object; as long as one distance detection device detects the object, the alarm device 30 will be activated. The alarm device 30 can be a buzzer, a warning light, or an alarm sound. Of course, this embodiment is merely an example of the types of alarm devices 30 and is not intended to limit the scope. Those skilled in the art can modify it according to actual circumstances, as long as the same technical effect is achieved.

[0079] Such a setup has limitations due to the simplistic nature of single-mode prompts, such as only an audible alarm or only structural buffering. The audible alarm might be masked by the noise of the range hood during cooking, causing users to miss it. Alternatively, some users may not be sensitive to the tactile feedback of the airflow and might ignore the fan's warning. In this solution, however, when either detection device is triggered, both the alarm and the airflow can be activated simultaneously, providing a dual-mode warning and significantly reducing the risk of collision for the user.

[0080] Furthermore, in an optional implementation, when one of the distance detection devices detects an object to be detected within the detection range, the alarm device 30 activates for a second preset duration. The specific value of the second preset duration can be 2 seconds, 2.5 seconds, 3 seconds, 3.5 seconds, 4 seconds, etc. Of course, this embodiment is merely an example illustrating the specific value of the second preset duration, but it is not intended to limit it. Those skilled in the art can modify it according to actual circumstances, as long as the same technical effect is achieved.

[0081] With this configuration, this embodiment, by setting a second preset duration for the alarm device 30 to activate, can ensure that the user receives the alarm information while avoiding continuous noise interference with the kitchen environment. If the alarm device 30 operates continuously, it will generate noise pollution during non-cooking periods, and during cooking periods, continuous noise may exacerbate the noisy kitchen environment, affecting the user experience.

[0082] Furthermore, in an optional embodiment, the range hood also includes a power supply component 40, which is connected to the controller, the alarm device 30, and all the detection components 20. The power supply component 40 can be the range hood's power supply port 50, meaning it shares the same power supply port 50 with the internal components of the range hood. When the range hood is started, the power supply port 50 is connected to the mains power, energizing the controller, alarm device 30, and detection components 20. When the range hood is turned off, the power supply port 50 is disconnected from the mains power, de-energizing the controller, alarm device 30, and detection components 20. Alternatively, the power supply component 40 can be connected to the mains power, allowing the controller, alarm device 30, and detection components 20 to be directly plugged into a separate power outlet.

[0083] Of course, this embodiment is merely an example of the type of power supply component 40, but it is not intended to limit it. Those skilled in the art can make changes according to the actual situation, as long as the same technical effect can be achieved.

[0084] With this configuration, in this embodiment, the power supply component 40 is connected to the controller, the alarm device 30, and all the detection components 20 simultaneously. The unified power supply component 40 can ensure that all components are powered synchronously. When the power is on, all components are ready at the same time. When the power is not on, all components stop operating synchronously. This can avoid the hidden danger of partial functional failure and improve the overall reliability of the system.

[0085] Furthermore, in an optional embodiment, the power supply assembly 40 includes a battery 41, one end of which is connected to the power supply port 50 of the range hood, and the other end of which is connected to the controller, the alarm device 30, and all the detection components 20.

[0086] In actual operation, after the range hood is started, the power supply port 50 of the range hood is connected to the mains power, and the battery 41 can be charged using the power supply port 50. After the range hood is turned off, the power supply port 50 of the range hood is disconnected from the mains power, and the battery 41 continues to supply power to the controller, alarm device 30 and all detection components 20 using the stored electrical energy.

[0087] With this setup, during non-cooking periods, such as routine cleaning or food preparation, the range hood is not turned on, and users may easily overlook its presence, making it a high-risk time for collisions. If relying solely on the range hood's main power supply, the controller, detection component 20, and alarm device 30 will malfunction due to power loss when not cooking. However, in this embodiment, the battery 41 is charged through the power supply port 50 when the range hood is on, ensuring sufficient power. When the range hood is off or not plugged in, the battery 41 independently powers the controller, detection component 20, and alarm device 30, allowing the range hood's anti-collision function to continue working normally during non-cooking periods. This design covers all times of daily life, ensuring the anti-collision function remains effective.

[0088] Furthermore, in an alternative embodiment, the power supply assembly 40 further includes a first switch 42 and a second switch 43.

[0089] Specifically, in this embodiment, one end of the first switch 42 is connected to the other end of the battery 41, and the other end of the first switch 42 is connected to all the detection components 20. One end of the second switch 43 is connected to the other end of the battery 41, and the other end of the second switch 43 is connected to the alarm device 30.

[0090] In other words, the first switch 42 can independently control whether the detection component 20 is energized, and the second switch 43 can independently control whether the alarm device 30 is energized. The first switch 42 and the second switch 43 can be mechanical switches, which the user can manually turn off, or they can be electromagnetic switches. The operation of the electromagnetic switch can be integrated into the control panel of the range hood, allowing the user to control it from the control panel.

[0091] Of course, this embodiment is merely an example of the types of the first switch 42 and the second switch 43, but it does not limit the scope of the invention. Those skilled in the art can make changes according to the actual situation, as long as the same technical effect can be achieved.

[0092] With this configuration, this embodiment has two independent switches, allowing users to freely combine modes according to their actual needs. For example, the entire anti-collision system can be turned off, or only the warning fan can be turned on to provide a blowing reminder, or only the alarm device 30 can be turned on to provide an alarm reminder, or both the warning fan and the alarm device 30 can be turned on simultaneously. This can meet the different needs of users and improve user experience and market acceptance.

[0093] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A range hood, characterized in that, include: Shell (10); The controller is mounted on the housing (10); Multiple detection components (20) are arranged around the housing (10); each detection component (20) includes a distance detection device and a prompting fan, and the distance detection device and the prompting fan of each detection component (20) are simultaneously connected to the controller. The distance detection device and the prompting fan are arranged adjacent to each other, and the air outlet direction of the prompting fan is towards the detection direction of the distance detection device. The distance detection device is provided with a detection range. When the distance detection device detects an object to be detected within the detection range, the controller controls the prompt fan to start and generate airflow. When the user's head is close to the housing (10), the airflow has enough thrust to push the user's head in the opposite direction and prevent the user's head from continuing to move in the original direction.

2. The range hood according to claim 1, characterized in that, The housing (10) is provided with a smoke collection chamber, and the detection component (20) is disposed on the inner edge circumferentially of the smoke collection chamber, or / and the outer edge circumferentially of the smoke collection chamber.

3. The range hood according to claim 2, characterized in that, The front end face (11) of the housing (10) is provided with a plurality of first detection components (21), and the first prompting fan (212) in the first detection component (21) blows air downward in the vertical direction.

4. The range hood according to claim 3, characterized in that, Multiple second detection components (22) are provided on the side surfaces (12) on both sides of the housing (10), and the second prompting fan (222) in the second detection component (22) tilts downward toward the end face (11) to discharge air.

5. The smoke hood according to any one of claims 1 to 4, characterized in that, When the distance detection device detects an object to be detected within the detection range, the prompt fan starts for a first preset time.

6. The smoke hood according to any one of claims 1 to 4, characterized in that, The range hood also includes: An alarm device (30) is mounted on the housing (10); and the alarm device (30) is electrically connected to all distance detection devices via the controller; When one of the distance detection devices detects an object to be detected within the detection range, the controller controls the alarm device (30) to start and issue an alarm message.

7. The range hood according to claim 6, characterized in that, When one of the distance detection devices detects an object to be detected within the detection range, the alarm device (30) activates for a second preset duration.

8. The smoke hood according to claim 7, characterized in that, The range hood also includes: The power supply assembly (40) is connected to the controller, the alarm device (30), and all the detection assemblies (20), respectively.

9. The range hood according to claim 8, characterized in that, The power supply assembly (40) includes: A storage battery (41) is provided, one end of which is connected to the power supply port (50) of the smoke machine, and the other end of which is connected to the controller, the alarm device (30) and all the detection components (20).

10. The range hood according to claim 9, characterized in that, The power supply assembly (40) also includes: The first switch (42) has one end connected to the other end of the storage battery (41) and the other end connected to all the detection components (20); The second switch (43) has one end connected to the other end of the storage battery (41) and the other end connected to the alarm device (30).

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