Range hood

Abstract

This disclosure discloses a range hood, comprising a range hood cavity, a controller, a first drive unit, and a voice acquisition device. Both the first drive unit and the voice acquisition device are electrically connected to the controller. The voice acquisition device is located within the range hood cavity and is used to acquire voice commands and send them to the controller. The controller, in response to a wake-up command, controls the first drive unit to lower the voice acquisition device outside the range hood cavity and to execute corresponding operations based on the received voice commands; and in response to a retraction command, controls the first drive unit to retract the voice acquisition device back into the range hood cavity. By configuring a controller and a first drive unit, this disclosure enables the controller to control the lowering and retraction of the voice acquisition device, thereby realizing the voice control function of the range hood and reducing the probability of malfunction of the voice acquisition device.

Description

Technical Field

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

[0002] With the development of voice control technology and the improvement of living standards, voice control technology is being applied to more and more fields to achieve more convenient operation, including range hoods. Users still need to use both hands to cook when using a range hood, so adjusting the range hood by hand is very inconvenient. By adding a voice control function, users can free their hands. During cooking, they can issue commands through voice to control the range hood to adjust the fan speed, etc. However, the environment in which range hoods are used is filled with oil fumes. The voice acquisition device used to realize the voice control function is often blocked by accumulated oil and various impurities, which leads to malfunctions. Although existing technology can set a protective film on the voice control device to prevent oil from entering the device, the protective effect of the protective film is limited, and it is difficult for users to replace it. Long-term use in an environment with oil fumes or dust will still cause the voice acquisition device to malfunction. Summary of the Invention

[0003] The technical problem to be solved by this disclosure is to overcome the defect that the voice acquisition device of the existing range hood is prone to grease buildup and equipment failure due to long-term use in cooking scenarios, and to provide a range hood.

[0004] This disclosure solves the above-mentioned technical problems through the following technical solution:

[0005] This disclosure provides a range hood, which includes a range hood cavity, a controller, a first drive unit, and a voice acquisition device, wherein the first drive unit and the voice acquisition device are both electrically connected to the controller.

[0006] The voice acquisition device is located inside the smoke machine cavity and is used to acquire voice commands and send the voice commands to the controller.

[0007] The controller is used to respond to a wake-up command, control the first drive unit to drive the voice acquisition device to descend outside the smoke machine cavity, and execute corresponding operations according to the received voice command;

[0008] In response to a retraction command, the first drive unit is controlled to retract the voice acquisition device into the smoke machine cavity.

[0009] Optionally, the range hood further includes a wind pressure detection unit and a second drive unit;

[0010] The wind pressure detection unit is electrically connected to the controller;

[0011] The wind pressure detection unit is used to detect the wind pressure at the location of the voice acquisition device and send the wind pressure to the controller;

[0012] The controller is also used to control the second drive unit to drive the voice acquisition device to rotate based on the wind pressure.

[0013] Optionally, the controller is specifically used to control the second drive unit to drive the voice acquisition device to rotate when the wind pressure is greater than the preset wind pressure, until the wind pressure at the location of the voice acquisition device is equal to the preset wind pressure.

[0014] Optionally, the voice acquisition device includes a microphone and a base;

[0015] The microphone is fixedly connected to the base, and the second driving unit is specifically used to drive the base to rotate.

[0016] Optionally, the smoke machine cavity includes a light panel, and the voice acquisition device is disposed on the light panel.

[0017] Optionally, the microphone is provided with a dustproof and breathable membrane.

[0018] Optionally, the second drive unit includes a stepper motor.

[0019] Optionally, the range hood also includes a voice-activated switch;

[0020] The voice-activated switch is electrically connected to the controller;

[0021] The voice-activated switch is used to send the wake-up command to the controller in response to a sound signal.

[0022] Optionally, the range hood also includes a touch switch;

[0023] The touch switch is electrically connected to the controller;

[0024] The touch switch is used to send the wake-up command to the controller in response to a touch operation.

[0025] Optionally, the range hood also includes a push-button switch;

[0026] The push-button switch is electrically connected to the controller;

[0027] The push-button switch is used to send the wake-up command to the controller in response to a press operation.

[0028] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this disclosure.

[0029] The positive and progressive effects of this disclosure are as follows: By setting up a controller and a first driving unit, the controller can, upon receiving a wake-up command, control the first driving unit to drive the voice acquisition device to descend, thereby receiving the user's voice commands; furthermore, upon receiving a retraction command, it can control the first driving unit to retract the voice acquisition device into the range hood cavity, preventing the greasy cooking environment from continuously damaging the voice acquisition device. This not only realizes the voice control function of the range hood but also reduces the probability of voice acquisition device malfunction. Attached Figure Description

[0030] Figure 1 A front view of the voice acquisition device of the range hood provided in this embodiment of the present disclosure, lowered outside the range hood cavity.

[0031] Figure 2 A side view of the voice acquisition device of the range hood provided in this embodiment of the present disclosure, lowered outside the range hood cavity.

[0032] Figure 3 This is a front view of the voice acquisition device of the range hood provided in this embodiment of the present disclosure retracted into the range hood cavity. Detailed Implementation

[0033] The present disclosure is further illustrated below by way of embodiments, but the present disclosure is not limited to the scope of the embodiments described herein.

[0034] This embodiment provides a range hood, see reference. Figure 1 The range hood includes a range hood cavity 1, a controller, a first drive unit, and a voice acquisition device 2. Both the first drive unit and the voice acquisition device 2 are electrically connected to the controller.

[0035] The controller can be used to respond to a wake-up command and control the first drive unit to drive the voice acquisition device 2 to descend outside the range hood cavity 1; the controller can also be used to perform corresponding operations according to the received voice commands, such as adjusting the air volume of the range hood or turning on the lights of the range hood; the controller can also be used to respond to a retraction command and control the first drive unit to drive the voice acquisition device 2 to retract into the range hood cavity 1.

[0036] The range hood cavity 1 is the main body of the range hood, with a shell and other structures. The voice acquisition device 2 is located inside the range hood cavity 1. When the voice acquisition device 2 is located inside the range hood cavity 1, the voice acquisition device 2 is not in contact with the outside air. Even if there is a lot of oil smoke in the cooking environment where the range hood is located, it will not pollute the voice acquisition device 2.

[0037] The first drive unit may include a motor. The first drive unit is controlled by a controller and can be used to drive the voice acquisition device 2 to descend outside the smoke machine cavity 1. (See [link]) Figure 2When the voice acquisition device 2 is located outside the smoke hood cavity 1, it can acquire the user's voice commands and send them to the controller. The first drive unit can also be used to drive the voice acquisition device 2 back into the smoke hood cavity 1. (See [link]) Figure 3 When the voice acquisition device 2 is retracted into the smoke machine cavity 1, it can be protected from the damage caused by oil stains in the external environment.

[0038] In an optional implementation, the voice acquisition device 2 includes a base and a microphone. The microphone is located inside the base and is fixedly connected to the base. The first driving unit lowers the base to lower the voice acquisition device 2 so that the microphone of the voice acquisition device 2 is exposed from inside the range hood cavity 1, thereby acquiring the user's voice commands. The first driving unit also retracts the base to retract the voice acquisition device 2 so that the microphone is retracted into the range hood cavity 1 and isolated from the external environment by the outer shell of the range hood cavity 1, thereby preventing oil stains from damaging it.

[0039] In one alternative implementation, the base is arc-shaped, and the smoke hood cavity 1 includes an arc-shaped placement groove whose shape and size are adapted to the base.

[0040] In an alternative embodiment, the range hood cavity 1 includes a light panel located at the bottom of the range hood cavity 1, facing the cooking area, and a voice acquisition device 2 is disposed on the light panel.

[0041] In an optional implementation, the range hood further includes a wind pressure detection unit and a second drive unit. The wind pressure detection unit is electrically connected to the controller and may include a wind pressure sensor. The wind pressure detection unit is used to detect the wind pressure at the location of the voice acquisition device 2 and send the wind pressure data to the controller. The second drive unit may include a stepper motor. The controller is also used to control the second drive unit to drive the voice acquisition device 2 to rotate according to the wind pressure, thereby changing the angle of the voice acquisition device 2. This is because when the wind pressure is high, in a cooking environment, a lot of oil fumes will flow towards the voice acquisition device 2 with the airflow, which can easily block the microphone of the voice acquisition device 2, causing the microphone to be clogged with oil and leading to a malfunction of the voice acquisition device 2. When the angle of the voice acquisition device 2 changes, the wind pressure at its location changes accordingly. Therefore, the angle of the voice acquisition device 2 can be controlled to reduce the wind pressure at its location. In an optional implementation, the adjustable angle range between the voice acquisition device 2 and the range hood cavity is 0-50 degrees.

[0042] In an optional implementation, the controller is further configured to compare the wind pressure with a preset wind pressure. If the wind pressure is greater than the preset wind pressure, the controller controls the voice acquisition device 2 to rotate until the wind pressure at the location of the voice acquisition device 2 equals the preset wind pressure. The preset wind pressure is the wind pressure at the location of the voice recognition device 2 in its original state. The voice acquisition device 2 may include a microphone with a sound-receiving hole. The preset wind pressure may be the wind pressure at the sound-receiving hole of the microphone in its original state, i.e., the wind pressure at the microphone's sound-receiving hole when no appliances such as stoves or range hoods that affect wind pressure are turned on.

[0043] In an optional implementation, the controller is also used to determine whether the wind pressure is within a preset wind pressure range. If the wind pressure is not within the preset wind pressure range, the controller controls the voice acquisition device 2 to rotate until the wind pressure at the location of the voice acquisition device 2 is within the preset wind pressure range.

[0044] In an optional implementation, the range hood also includes a voice-activated switch; the voice-activated switch is electrically connected to the controller; the voice-activated switch is used to send a wake-up command to the controller in response to a sound signal. The user can wake up the range hood with their voice, causing the controller to lower the voice acquisition device 2, thus allowing the user to issue voice commands to the range hood and control its operation via voice.

[0045] In an optional implementation, the range hood further includes a touch switch; the touch switch is electrically connected to the controller; the touch switch is used to send the wake-up command to the controller in response to a touch operation. The user can wake up the range hood by touching the touch switch, causing the controller to lower the voice acquisition device, thereby allowing the user to issue voice commands to the range hood and control its operation via voice.

[0046] In an optional implementation, the range hood also includes a push-button switch; the push-button switch is electrically connected to the controller; the push-button switch is used to send a wake-up command to the controller in response to a pressing operation. The user can wake up the range hood by pressing the push-button switch, causing the controller to lower the voice acquisition device, thereby allowing the user to issue voice commands to the range hood and control its operation via voice.

[0047] In one optional embodiment, the microphone of the voice acquisition device 2 is provided with a dustproof and breathable membrane, which is directly attached to the microphone. In another optional embodiment, the base is provided with an opening through which the microphone receives external voice commands, and the dustproof and breathable membrane is placed over the opening to prevent oil or dirt in the air from clogging the microphone.

[0048] In one optional implementation, a retraction command is generated when the user turns off the range hood. Alternatively, a retraction command is generated when the range hood enters standby mode. Or, a retraction command is generated when the range hood does not receive a voice command within a preset time. By automatically retracting and closing its position when the range hood is in a closed, standby, or on state and the voice function is not used for a certain period of time, the voice acquisition device 2 prevents unnecessary kitchen pollution from entering.

[0049] This embodiment of the disclosure, by setting up a controller and a first driving unit, enables the controller to control the first driving unit to drive the voice acquisition device to descend upon receiving a wake-up command, thereby receiving the user's voice commands; it can also control the first driving unit to retract the voice acquisition device into the range hood upon receiving a retraction command, preventing the greasy cooking environment from continuously damaging the voice acquisition device. This not only realizes the voice control function of the range hood but also reduces the probability of voice acquisition device malfunction.

[0050] While specific embodiments of this disclosure have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this disclosure is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this disclosure, but all such changes and modifications fall within the scope of protection of this disclosure.

Claims

1. A range hood, characterized in that, The range hood includes a range hood cavity, a controller, a first drive unit, and a voice acquisition device, wherein the first drive unit and the voice acquisition device are both electrically connected to the controller. The voice acquisition device is located inside the smoke machine cavity and is used to acquire voice commands and send the voice commands to the controller. The controller is used to respond to a wake-up command, control the first drive unit to drive the voice acquisition device to descend outside the smoke machine cavity, and execute corresponding operations according to the received voice command; In response to a retraction command, the first drive unit is controlled to drive the voice acquisition device to retract into the range hood cavity; the range hood also includes a wind pressure detection unit and a second drive unit; The wind pressure detection unit is electrically connected to the controller; The wind pressure detection unit is used to detect the wind pressure at the location of the voice acquisition device and send the wind pressure to the controller; The controller is also used to control the second drive unit to drive the voice acquisition device to rotate based on the wind pressure.

2. The range hood as described in claim 1, characterized in that, Specifically, the controller is used to control the second drive unit to drive the voice acquisition device to rotate when the wind pressure is greater than the preset wind pressure, until the wind pressure at the location of the voice acquisition device is equal to the preset wind pressure.

3. The range hood as described in claim 1 or 2, characterized in that, The voice acquisition device includes a microphone and a base; The microphone is fixedly connected to the base, and the second driving unit is specifically used to drive the base to rotate.

4. The range hood as described in any one of claims 1-2, characterized in that, The smoke machine cavity includes a light panel, and the voice acquisition device is mounted on the light panel.

5. The range hood as described in claim 3, characterized in that, The microphone is equipped with a dustproof and breathable membrane.

6. The range hood as described in claim 5, characterized in that, The second drive unit includes a stepper motor.

7. The range hood as described in claim 1, characterized in that, The range hood also includes a voice-activated switch; The voice-activated switch is electrically connected to the controller; The voice-activated switch is used to send the wake-up command to the controller in response to a sound signal.

8. The range hood as described in claim 1, characterized in that, The range hood also includes a touch switch; The touch switch is electrically connected to the controller; The touch switch is used to send the wake-up command to the controller in response to a touch operation.

9. The range hood as described in claim 1, characterized in that, The range hood also includes a push-button switch; The push-button switch is electrically connected to the controller; The push-button switch is used to send the wake-up command to the controller in response to a press operation.

Images