CN221197508U - Range hood and oil receiving amount detection device thereof - Google Patents
Range hood and oil receiving amount detection device thereof Download PDFInfo
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- CN221197508U CN221197508U CN202322938872.XU CN202322938872U CN221197508U CN 221197508 U CN221197508 U CN 221197508U CN 202322938872 U CN202322938872 U CN 202322938872U CN 221197508 U CN221197508 U CN 221197508U
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- 238000001514 detection method Methods 0.000 title claims abstract description 19
- 230000003287 optical effect Effects 0.000 claims abstract description 47
- 238000006243 chemical reaction Methods 0.000 claims abstract description 40
- 238000010586 diagram Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- 239000006233 lamp black Substances 0.000 description 1
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Abstract
The utility model provides a range hood and an oil receiving amount detection device thereof, wherein the oil receiving amount detection device of the range hood comprises a controller, a photoelectric conversion module and an optical path channel; the photoelectric conversion module comprises a transmitting unit, a receiving unit and a photoelectric conversion unit; the photoelectric conversion module is arranged on the outer side wall of the oil receiving box; the light path channel is arranged on the inner side wall of the oil receiving box and corresponds to the photoelectric conversion module; the controller is electrically connected with the photoelectric conversion unit; the transmitting unit is used for transmitting the first optical signal to the optical path channel; the optical path channel is used for transmitting a first optical signal in the oil receiving box and returning a second optical signal to the receiving unit; the receiving unit is used for receiving the second optical signal; the photoelectric conversion unit is used for converting the second optical signal into an electric signal and sending the electric signal to the controller; the controller is configured to receive the electrical signal. According to the utility model, the photoelectric conversion module is used for detecting the oil receiving quantity, so that the oil receiving quantity is intelligently and reliably detected, and the use experience of a user is improved.
Description
Technical Field
The utility model relates to the field of kitchen appliances, in particular to a range hood and an oil receiving amount detection device thereof.
Background
The oil receiving box of the existing range hood is generally arranged below the oil discharge hole in a hanging or inserting manner and is used for receiving oil. The oil receiving box is usually provided with a transparent window, and a user can check the oil storage amount in the oil receiving box after the transparent window is windowed. However, the oil receiving box does not have a strong prompt for a user, so that the user often neglects to check the oil storage in the oil receiving box. In addition, after long-term use, the inner wall of the oil receiving box can be covered by oil marks, so that transparency of the oil receiving box is affected, appearance of the oil receiving box is affected, and a user is difficult to judge whether the oil receiving box is full of oil or not. For the intelligent lampblack absorber on the market, the oil mass of oil receiving box can not be perceived to the user can not be reminded remotely.
Disclosure of utility model
The utility model aims to overcome the defect that an oil receiving box cannot intelligently detect oil receiving quantity in the prior art, and provides a range hood and an oil receiving quantity detection device thereof.
The utility model solves the technical problems by the following technical scheme:
The utility model provides an oil receiving amount detection device of a range hood, which is applied to an oil receiving box, and comprises a controller, a photoelectric conversion module and a light path channel; the photoelectric conversion module comprises a transmitting unit, a receiving unit and a photoelectric conversion unit;
The photoelectric conversion module is arranged on the outer side wall of the oil receiving box; the light path channel is arranged on the inner side wall of the oil receiving box and corresponds to the photoelectric conversion module; the controller is electrically connected with the photoelectric conversion unit; wherein the outer side wall and the inner side wall are perpendicular to the oil surface;
The transmitting unit is used for transmitting a first optical signal to the optical path channel; the optical path channel is used for transmitting the first optical signal in the oil receiving box and returning a second optical signal to the receiving unit; the receiving unit is used for receiving the second optical signal; the photoelectric conversion unit is used for converting the second optical signal into an electric signal and sending the electric signal to the controller; the controller is configured to receive the electrical signal.
Preferably, the oil receiving amount detection device of the range hood further comprises a prompt unit; the prompting unit is electrically connected with the controller;
The controller is used for sending an oil quantity reminding signal to the prompting unit;
the prompting unit is used for receiving the oil quantity prompting signal to prompt a user to clean the oil receiving box.
Preferably, the oil receiving amount detection device of the range hood further comprises a display unit; the display unit is electrically connected with the controller;
The controller is used for sending a display signal to the display unit;
the display unit is used for receiving the display signal and displaying the oil quantity in the oil receiving box.
Preferably, the included angle between the light path channel and the inner side wall is 45 degrees.
Preferably, the prompting unit comprises a wireless communication module.
Preferably, the display unit includes an indicator light.
Preferably, the receiving unit is spaced apart from the bottom plate of the oil receiving box by a first height; wherein the bottom plate is parallel to the oil surface.
Preferably, the transmitting unit is spaced apart from the bottom plate of the oil receiving box by a second height; wherein the first height is greater than the second height.
The utility model also provides a range hood, which comprises an oil receiving box and the oil receiving amount detection device of the range hood.
On the basis of conforming to the common knowledge in the field, the above preferred conditions can be arbitrarily combined to obtain the preferred examples of the utility model.
The utility model has the positive progress effects that:
According to the utility model, the photoelectric conversion module is used for detecting the oil receiving amount, and whether the oil quantity in the oil receiving box reaches the preset value is judged according to the electric signal converted from the optical signal detected by the photoelectric conversion module, so that the effect of reliably and intelligently detecting the oil receiving amount is achieved, and the use experience of a user is improved.
Drawings
Fig. 1 is a schematic structural diagram of a device for detecting oil receiving amount of a range hood according to embodiment 1 of the present utility model;
Fig. 2 is a schematic diagram of the relative positions of the photoelectric conversion module and the oil receiving box of the oil receiving amount detection device of the range hood according to embodiment 1 of the present utility model;
fig. 3 is a schematic view of a photoelectric conversion module of the oil receiving amount detection device of the range hood according to embodiment 1 of the present utility model;
fig. 4 is a schematic diagram of the electrical signal change of the oil receiving amount detecting device of the range hood according to embodiment 1 of the present utility model;
Fig. 5a is a schematic diagram of refraction angle and refractive index when oil amount of the oil receiving amount detecting device of the range hood in embodiment 1 of the present utility model reaches a preset value;
Fig. 5b is a schematic diagram of refraction angle and refractive index when the oil amount of the oil receiving amount detecting device of the range hood in embodiment 1 of the present utility model does not reach a preset value;
Fig. 6 is a schematic structural diagram of a specific example of the oil receiving amount detection device of the range hood according to embodiment 1 of the present utility model;
Fig. 7 is a schematic cross-sectional view of an oil receiving box of the oil receiving amount detecting device of the range hood of embodiment 1 of the present utility model;
Fig. 8 is an optical schematic diagram of the oil receiving amount detecting device of the range hood according to embodiment 1 of the present utility model;
Fig. 9 is a schematic structural diagram of a range hood according to embodiment 2 of the present utility model.
Detailed Description
The present utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown.
Example 1
The embodiment provides an oil receiving amount detection device of a range hood, which is applied to an oil receiving box, and referring to fig. 1, the oil receiving amount detection device of the range hood comprises a controller 1, a photoelectric conversion module 2 and an optical path channel 3. The photoelectric conversion module 2 includes a transmitting unit 21, a receiving unit 22, and a photoelectric conversion unit 23.
Referring to fig. 2, the photoelectric conversion module 2 is provided on the outer side wall of the oil receiving case 10. The light path channel 3 is arranged on the inner side wall of the oil receiving box and corresponds to the photoelectric conversion module 2. The controller 1 is electrically connected to the photoelectric conversion unit 23. Fig. 3 is a schematic structural diagram of the photoelectric conversion module 2, and the emission unit 21 includes an infrared emission tube (infrared) and a resistance of 100 ohms. The receiving unit 22 includes a phototransistor (Photo Transistor) and a resistor of 10 kiloohms. Vout is an electrical signal output by the photoelectric conversion unit 23 in accordance with the optical signal. The photoelectric conversion unit 23 transmits an electric signal to the controller 1, and determines that the oil amount in the oil receiving box is full when Vout is smaller than a threshold value, and if not, as shown in fig. 4. The abscissa of fig. 4 represents the amount of oil in the oil receiving box, and the ordinate represents the electrical signal.
Referring to fig. 5a and 5b, the included angle between the light path channel 3 and the inner side wall is 45 degrees. The outer side wall and the inner side wall are perpendicular to the oil surface.
In an alternative embodiment, the receiving unit 22 is spaced a first height from the floor of the oil receiving box. Wherein the bottom plate is parallel to the oil surface.
In an alternative embodiment, the transmitting unit 21 is spaced from the bottom plate of the oil receiving box by a second height. Wherein the first height is greater than the second height.
FIG. 5a is a schematic view showing the refraction angle and the refractive index when the oil amount reaches a preset value. I.e. when the oil level reaches the second level, the refractive index n2 is 1.47, the angle of refraction, since the optical signal emitted by the emitting unit 21 encounters the medium via the optical path channel 3 as oil42.33 Degrees. Wherein the angle of incidence/>The refractive index n1 corresponding to the incident medium is 1.4 at 45 degrees.
FIG. 5b is a schematic view of refraction angle and refractive index when the oil amount does not reach a preset value. I.e. when the oil level does not reach the second level, the refractive index n2 is 1.1, the angle of refraction is then the result of the optical signal emitted by the emitting unit 21 encountering the medium via the optical path channel 3 being air90 Degrees. Wherein the angle of incidence/>The refractive index n1 corresponding to the incident medium is 1.4 at 45 degrees.
The transmitting unit 21 is configured to transmit the first optical signal to the optical path channel 3. The optical path channel 3 is used for transmitting the first optical signal in the oil receiving box and returning the second optical signal to the receiving unit 22. The receiving unit 22 is configured to receive the second optical signal. The photoelectric conversion unit 23 is configured to convert the second optical signal into an electrical signal and transmit the electrical signal to the controller 1. The controller 1 is used for receiving the electric signal to judge whether the oil quantity of the oil receiving box exceeds a preset value.
In this embodiment, the photoelectric conversion module detects the oil receiving amount, and judges whether the oil amount in the oil receiving box reaches a preset value according to the electric signal converted from the optical signal detected by the photoelectric conversion module, thereby achieving the effect of reliably and intelligently detecting the oil receiving amount and improving the use experience of a user.
In an alternative embodiment, referring to fig. 1, the oil receiving amount detecting device of the range hood further includes a prompt unit 4. The prompting unit 4 includes a WiFi (wireless network transmission technology) module, a bluetooth module and other wireless communication modules.
The presentation unit 4 is electrically connected to the controller 1.
The controller 1 is used for sending an oil quantity reminding signal to the reminding unit 4.
The prompting unit 4 is used for receiving the oil quantity prompting signal to prompt a user to clean the oil receiving box.
In this embodiment, the user may be automatically reminded to clean the oil receiving box by the reminding unit, particularly by the wireless communication module, for example, the oil quantity reminding signal is uploaded to the server by the wireless communication module, and the server informs the user of the state of the oil receiving box by the mobile terminal such as the mobile phone of the user. The embodiment strongly reminds the user of the state of the oil receiving box, so that the user can clean the oil receiving box in time, and further the use experience of the user is improved.
In an alternative embodiment, referring to fig. 1, the oil receiving amount detecting device of the range hood further includes a display unit 5. The display unit 5 is electrically connected to the controller 1.
The controller 1 is configured to send a display signal to the display unit 5.
The display unit 5 is used for receiving the display signal to display the oil quantity in the oil receiving box.
The display unit 5 includes an indicator lamp, a liquid crystal display screen, a display panel, and the like.
For example: when the oil quantity in the oil receiving box exceeds a preset value, the indicator lamp is lighted; when the oil quantity in the oil receiving box does not exceed a preset value, the indicator lamp is turned off.
In this embodiment, the user can more intuitively understand the state of the oil receiving box through the display unit, thereby improving the user's use feeling.
The following describes a specific example of the oil receiving amount detecting device of the range hood in detail.
Fig. 6 is a schematic structural diagram of an oil receiving amount detecting device of the range hood of the present example. When the oil receiving amount detection device of the range hood detects a second optical signal changing along with the change of the oil level through the photoelectric conversion module 2, the second optical signal is converted into an electric signal, and the electric signal is sent to the controller 1. The controller 1 includes an MCU (micro control unit) or an SOC (system on a chip). The controller 1 judges whether the oil quantity in the current oil receiving box reaches a preset value or not according to the electric signal. If the preset value is reached, the display unit 5 of the range hood informs the user that the oil receiving box is full. The display unit 5 includes a liquid crystal display screen or a display panel or an indicator lamp. When the range hood has a wireless communication function, the oil receiving amount detection device can also upload notification information to the server through the prompting unit 4, and the server notifies the user of the state of the oil receiving box through the mobile phone application program of the user. The prompting unit 4 comprises a wireless communication module such as WiFi, bluetooth and the like.
A schematic cross-sectional view of the oil receiving box is shown in FIG. 7. The left diagram of fig. 7 shows that when the oil level does not reach the second height, the first optical signal emitted by the emitting unit 21 and the second optical signal received by the receiving unit 22 are identical, and the principle of total reflection is met, so that the electrical signal converted by the second optical signal does not change. The right graph of fig. 7 shows that when the oil level reaches the second level, refraction occurs because the medium is changed from air to oil, and the second optical signal changes with the change of the oil level, so that the electrical signal converted from the second optical signal also changes as shown in fig. 4. The principle is shown in FIG. 8, when light is emitted from an optically dense medium (corresponding to a refractive index of n 1) to an optically sparse medium (corresponding to a refractive index of n 2), the incident angle isWhen the angle is greater than or equal to the critical angle, total reflection can occur. Wherein, when light rays are emitted from an optically dense medium (corresponding to the refractive index of n 1) to an optically sparse medium (corresponding to the refractive index of n 2), the refraction angle/>Will be greater than the angle of incidence/>When the angle of incidence is a certain value, the angle of refraction is equal to 90 °, which is called the critical angle.
This example detects the height of oil level in the oil receiving box through photoelectric conversion module to can change oil mass information into the optical signal again and change into the electrical signal, the controller utilizes the electrical signal can be local or long-range warning user in time washs the oil receiving box, has strengthened reliability, the intelligent of warning function, has improved user's use experience.
Example 2
The present embodiment provides a range hood, referring to fig. 9, which includes an oil receiving box 10 and an oil receiving amount detecting device 91 of the range hood as in example 1.
It should be noted that, the implementation principle and the technical effect of each module of the range hood provided in this embodiment may refer to the corresponding parts of embodiment 1, and are not described herein again.
While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the utility model, but such changes and modifications fall within the scope of the utility model.
Claims (9)
1. The oil receiving amount detection device of the range hood is characterized by being applied to an oil receiving box and comprising a controller, a photoelectric conversion module and an optical path channel; the photoelectric conversion module comprises a transmitting unit, a receiving unit and a photoelectric conversion unit;
The photoelectric conversion module is arranged on the outer side wall of the oil receiving box; the light path channel is arranged on the inner side wall of the oil receiving box and corresponds to the photoelectric conversion module; the controller is electrically connected with the photoelectric conversion unit; wherein the outer side wall and the inner side wall are perpendicular to the oil surface;
The transmitting unit is used for transmitting a first optical signal to the optical path channel; the optical path channel is used for transmitting the first optical signal in the oil receiving box and returning a second optical signal to the receiving unit; the receiving unit is used for receiving the second optical signal; the photoelectric conversion unit is used for converting the second optical signal into an electric signal and sending the electric signal to the controller; the controller is configured to receive the electrical signal.
2. The oil receiving amount detecting device of a range hood according to claim 1, wherein the oil receiving amount detecting device of a range hood further comprises a prompt unit; the prompting unit is electrically connected with the controller;
The controller is used for sending an oil quantity reminding signal to the prompting unit;
the prompting unit is used for receiving the oil quantity prompting signal to prompt a user to clean the oil receiving box.
3. The oil receiving amount detecting device of a range hood according to claim 1, wherein the oil receiving amount detecting device of a range hood further comprises a display unit; the display unit is electrically connected with the controller;
The controller is used for sending a display signal to the display unit;
the display unit is used for receiving the display signal and displaying the oil quantity in the oil receiving box.
4. The oil receiving amount detecting device of a range hood according to claim 1, wherein the light path channel has an included angle of 45 degrees with the inner side wall.
5. The oil receiving amount detecting device of a range hood according to claim 2, wherein the prompting unit comprises a wireless communication module.
6. The oil receiving amount detecting device of a range hood according to claim 3, wherein the display unit includes an indicator lamp.
7. The oil receiving amount detecting device of a range hood according to claim 1, wherein the receiving unit is spaced apart from a bottom plate of the oil receiving box by a first height; wherein the bottom plate is parallel to the oil surface.
8. The oil receiving amount detecting device of a range hood according to claim 7, wherein the emitting unit is spaced apart from a bottom plate of the oil receiving box by a second height; wherein the first height is greater than the second height.
9. A range hood, characterized in that the range hood comprises an oil receiving box and an oil receiving amount detection device of the range hood according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322938872.XU CN221197508U (en) | 2023-10-31 | 2023-10-31 | Range hood and oil receiving amount detection device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322938872.XU CN221197508U (en) | 2023-10-31 | 2023-10-31 | Range hood and oil receiving amount detection device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221197508U true CN221197508U (en) | 2024-06-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322938872.XU Active CN221197508U (en) | 2023-10-31 | 2023-10-31 | Range hood and oil receiving amount detection device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221197508U (en) |
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2023
- 2023-10-31 CN CN202322938872.XU patent/CN221197508U/en active Active
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