CN212988505U - Oil cup liquid level detection device and range hood applying same - Google Patents
Oil cup liquid level detection device and range hood applying same Download PDFInfo
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- CN212988505U CN212988505U CN202021507427.8U CN202021507427U CN212988505U CN 212988505 U CN212988505 U CN 212988505U CN 202021507427 U CN202021507427 U CN 202021507427U CN 212988505 U CN212988505 U CN 212988505U
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Abstract
The utility model relates to an oil cup liquid level detection device and applied this oil cup liquid level detection device's range hood, oil cup liquid level detection device includes at least two sets of signal detection module and processing module, the signal detection module is including each other just setting up and setting up signal transmission module and the signal reception module on a set of just right lateral wall of oil cup respectively, signal reception module has the signal receiving face that sets up along oil cup direction of height, the direction of signal transmission that signal receiving face perpendicular to signal transmission module sent, processing module is connected respectively to signal transmission module and signal reception module. Therefore, the processing module of the oil cup detection device can calculate the liquid level of the oil stain in the cuboid oil cup according to the received signal sent by the signal receiving module and the area condition of the received signal, so that the influence of the oil stain on the height measurement of the liquid level is avoided, and the accuracy and the timeliness of the oil cup oil stain liquid level measurement are improved.
Description
Technical Field
The utility model relates to a range hood field especially relates to an oil cup liquid level detection device and applied this oil cup liquid level detection device's range hood.
Background
Extractor hoods have become an increasingly necessary household device in multi-user kitchens. By installing the range hood in a kitchen, the oil smoke generated in the cooking process can be quickly pumped away in time and discharged into a public flue.
In the structural design of the range hood, an oil cup responsible for collecting oil stains is usually provided. When the greasy dirt collected in the oil cup is accumulated to a certain degree, the greasy dirt in the oil cup needs to be poured in time, and the overflow of the greasy dirt is avoided.
The existing oil cup is mostly designed into a rectangular strip shape (including a square shape), and an observation window for observing the oil stain liquid level in the oil cup is also arranged on the rectangular strip-shaped oil cup. The user needs to check the oil stain liquid level in the oil cup through the observation window frequently in time to know the liquid level in the oil cup. However, since the oil cup is in the oil smoke environment covered by the oil smoke for a long time, the observation window is easily contaminated with oil stains, even blocked by the contaminated oil stains, which affects the user not to observe and control the liquid level in the oil cup in time. In addition, once the oil cup inclines, the inclination angle of the oil cup in different directions cannot be known in time, so that the risk of oil stain overflowing from the inclined oil cup exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the first technical problem that an oil cup liquid level detection device is provided to above-mentioned prior art.
The utility model aims to solve the second technical problem that a range hood of using above-mentioned oil cup liquid level detection device is provided.
The utility model provides a technical scheme that first technical problem adopted does: oil cup liquid level detection device, its characterized in that includes:
at least two groups of signal detection modules are arranged at intervals along the length direction of the cuboid oil cup;
a processing module;
wherein, the signal detection module has:
the signal sending module is arranged on the first side wall of the oil cup;
the signal receiving module is used for receiving the signal sent by the signal sending module and is provided with a signal receiving surface arranged along the height direction of the oil cup, the signal receiving surface is positioned on a second side wall of the oil cup, the second side wall and the first side wall are arranged opposite to each other, and the signal receiving surface is vertical to the direction of the signal sent by the signal sending module;
the signal sending module and the signal receiving module are respectively connected with the processing module.
In the oil cup liquid level detection device, the signal sending module is provided with a signal sending surface arranged along the height direction of the oil cup, and the signal sending surface and the signal receiving surface are arranged opposite to each other.
In order to prompt the oil stain liquid level condition in the oil cup to a user in time, the oil cup liquid level detection device further comprises a liquid level prompting device, and the liquid level prompting device is connected with the processing module. For example, when the processing module judges that the oil stain liquid level in the oil cup reaches a certain liquid level, for example, a preset alarm liquid level, according to the signal fed back by the signal detection module, the processing module instructs the liquid level prompting device to prompt the liquid level to the user, so that the user can take corresponding measures.
In consideration of the actual situation that the oil cup needs to be cleaned and the normal work of the oil cup liquid level detection device is ensured, in the oil cup liquid level detection device, the processing module is arranged outside the oil cup.
Optionally, in the oil cup liquid level detection device, the signal sending module is an optical signal transmitter or an ultrasonic signal transmitter. For example, when the signal sending module selects the optical signal transmitter, the optical signal transmitter may be a laser signal transmitter or an infrared signal transmitter.
The utility model provides a technical scheme that second technical problem adopted does: the range hood is characterized in that the oil cup liquid level detection device is applied.
Compared with the prior art, the utility model has the advantages of:
firstly, the oil cup detection device can calculate the liquid level height of oil stains in the oil cup according to the receiving signals sent by the signal receiving module and the area of the signals received by the signal receiving surface, so that the accuracy and timeliness of oil stain liquid level measurement of the oil cup are improved, and the influence of the oil stains on the liquid level height measurement is avoided;
secondly, the oil cup detection device can accurately detect the inclination angle of the oil cup in the length direction and the width direction of the oil cup, so that the inclination angle prompt is given to a user according to the inclination angle situation of each direction.
Drawings
FIG. 1 is a schematic view showing a state in which an oil cup liquid level detection device of the present embodiment is mounted on an oil cup;
FIG. 2 is a schematic view of the structure of FIG. 1 taken along the length of the oil cup;
FIG. 3 is a schematic view of the structure of FIG. 1 taken along the width of the oil cup;
FIG. 4 is a schematic connection diagram of the main components in the oil cup level detecting device in this embodiment.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1, the embodiment provides an oil cup liquid level detection device of a range hood. Referring to fig. 1, the oil cup liquid level detection device of the embodiment includes:
at least two groups of signal detection modules are arranged at intervals along the length direction of the cuboid oil cup 1; the interval of the two signal detection modules along the length direction of the cuboid oil cup 1 is L; the height of the oil cup 1 is marked as H, and the width of the oil cup 1 is marked as D;
a processing module 22 arranged outside the oil cup;
the liquid level prompting device 23 is connected with the processing module 22;
wherein, the signal detection module here has:
a signal transmitting module 212 disposed on the first sidewall 11 of the oil cup 1, the signal transmitting module 211 having a signal transmitting surface disposed along the height direction of the oil cup 1; the signal sending module 212 can select an optical signal transmitter or an ultrasonic signal transmitter;
the signal receiving module 212 is used for receiving the signal sent by the signal sending module 211, the signal receiving module 212 is provided with a signal receiving surface arranged along the height direction of the oil cup 1, the signal receiving surface is positioned on the second side wall 12 of the oil cup 1, the signal sending surface and the signal receiving surface are arranged opposite to each other, the second side wall 12 and the first side wall 11 are arranged opposite to each other, and the signal receiving surface is perpendicular to the direction of the signal sent by the signal sending module 211; the signal transmitting module 211 and the signal receiving module 212 are respectively connected to the processing module 22.
The following description will be made with reference to fig. 1 to 3 on the principle of the oil cup liquid level detection device for detecting the liquid level of the oil stain in the oil cup:
after installing oil cup liquid level detection device on cuboid form oil cup 1, along with the continuous accumulation of greasy dirt in the oil cup, when the greasy dirt accumulated to a take the altitude, the signal that oil cup liquid level detection device 'S signal transmission module 211 sent out will be sheltered from unable timely transmission by the greasy dirt of accumulation in the oil cup, lead to these signals can't be received by signal receiving module 212, but the signal that does not shelter from by the greasy dirt of being located greasy dirt liquid level top still can receive the signal that signal transmission module 211 sent to receive the signal receiving face, processing module 22 just so can be through the area size S that current can received the signal on the signal receiving face1The height h of the oil stain liquid level in the current oil cup and the horizontal inclination angle theta of the oil cup along the length direction of the oil cup are judged1And the horizontal inclination angle theta of the oil cup along the width direction of the oil cup2. Assuming that the total area of the signal receiving surface of the signal receiving module 22 is S, the area on the signal receiving surface that cannot receive signals due to being shielded by oil stains is S-S1. Specifically, the method comprises the following steps:
(1) referring to fig. 2, the horizontal inclination angle theta of the oil cup along the length direction of the oil cup1The calculation method is as follows:
h1is a corresponding oil stain liquid level height value h when the oil stain liquid level is intersected with the signal receiving surface of the first signal receiving module 2122The oil stain liquid level is the height value of the other corresponding oil stain liquid level when the oil stain liquid level intersects with the signal receiving surface of the first signal receiving module 212, L is the interval of the two signal detection modules in the length direction of the rectangular oil cup, and preferably, the interval of the central axes of the two signal detection modules in the length direction of the rectangular oil cup is taken as the interval value L. Wherein h is1And h2Can be obtained by the processing module 22 according to the signal fed back by the signal receiving module 212; wherein, suppose S1Is the area of the signal received by the signal receiving surface of the signal receiving module 212, the area S-S shielded by oil stain on the signal receiving surface1Received signal area S of signal receiving surface1The ratio of the received signal strength and the received signal strength RSSI of the signal receiving module in the current oil stain state1The ratio of the received signal strength RSSI to the signal strength RSSI received by the signal receiving module in the state that the oil cup is empty, namely
That is, the processing module 22 processes the two signal strength values (RSSI and RSSI) transmitted from the signal receiving module 2121) And the total area S of the signal receiving surface is known, the received signal area S can be obtained1(ii) a Due to the RSSI of the signal intensity obtained in the oil cup in the oil containing state1The ratio of the signal strength to the RSSI obtained in the state that the oil cup is empty
Equivalent to the height (h) above the oil stain liquid level in the oil cup2-h1) Height h integral with the oil cup2Ratio of (a) to (b)
Thereby obtaining
Further obtain the
Here h is1The liquid level value of the oil stain liquid level in the oil cup is obtained.
(2) Referring to fig. 3, the horizontal inclination angle theta of the oil cup along the width direction of the oil cup2The calculation method is as follows:
h1is a corresponding oil stain liquid level height value h when the oil stain liquid level is intersected with the signal receiving surface of the first signal receiving module 2123The height value of the oil stain liquid level opposite to the signal receiving surface of the signal receiving module 212 in the direction of the second side wall 12 where the signal receiving surface is located when the oil stain liquid level intersects with the signal receiving surface, and D is the width of the cuboid oil cup. h is3See above for the calculation of h1The contents of (1) are described.
In addition, the processing module 22 obtains the horizontal inclination angle theta of the oil cup along the length direction thereof according to the obtained horizontal inclination angle theta1And the horizontal inclination angle theta of the oil cup along the width direction of the oil cup2And (4) judging:
if the horizontal angle of inclination theta1Greater than a predetermined inclination angle value theta1When the oil cup is inclined beyond the normal level in the length direction, the processing module 22 can command the liquid level prompting device 23 to give an audible and visual alarm; otherwise, the processing module 22 does not instruct the liquid level prompting device 23 to perform sound-light alarm when the oil cup is in a normal state in the length direction;
if the horizontal angle of inclination theta2Greater than a predetermined inclination angle value theta2When the oil cup inclines beyond the normal level in the width direction, the processing module 22 can command the liquid level prompting device 23 to give an audible and visual alarm; if not, then,the processing module 22 does not command the liquid level prompting device 23 to perform sound and light alarm when the oil cup is in a normal state in the width direction.
In addition, the embodiment also provides the range hood. Wherein, this range hood is used to have the oil cup liquid level detection device of this embodiment.
Claims (6)
1. Oil cup liquid level detection device, its characterized in that includes:
at least two groups of signal detection modules are arranged at intervals along the length direction of the cuboid oil cup (1);
a processing module (22);
wherein, the signal detection module has:
the signal sending module (211) is arranged on the first side wall (11) of the oil cup (1);
the signal receiving module (212) is used for receiving the signal sent by the signal sending module (211), the signal receiving module (212) is provided with a signal receiving surface arranged along the height direction of the oil cup (1), the signal receiving surface is positioned on a second side wall (12) of the oil cup (1), the second side wall (12) and the first side wall (11) are arranged opposite to each other, and the signal receiving surface is perpendicular to the direction of the signal sent by the signal sending module (211);
the signal sending module (211) and the signal receiving module (212) are respectively connected with a processing module.
2. The oil cup liquid level detection device according to claim 1, wherein the signal sending module (211) is provided with a signal sending surface arranged along the height direction of the oil cup (1), and the signal sending surface and the signal receiving surface are arranged opposite to each other.
3. The oil cup liquid level detection device according to claim 1, further comprising a liquid level prompt device (23), wherein the liquid level prompt device (23) is connected with the processing module (22).
4. The oil cup level detection device according to claim 1, wherein the processing module (22) is arranged outside the oil cup (1).
5. The oil cup liquid level detection device according to any one of claims 1 to 4, wherein the signal sending module (211) is an optical signal transmitter or an ultrasonic signal transmitter.
6. A range hood, characterized in that, has the oil cup liquid level detection device of any claim 1 ~ 5 of applying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021507427.8U CN212988505U (en) | 2020-07-27 | 2020-07-27 | Oil cup liquid level detection device and range hood applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021507427.8U CN212988505U (en) | 2020-07-27 | 2020-07-27 | Oil cup liquid level detection device and range hood applying same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212988505U true CN212988505U (en) | 2021-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021507427.8U Active CN212988505U (en) | 2020-07-27 | 2020-07-27 | Oil cup liquid level detection device and range hood applying same |
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| CN (1) | CN212988505U (en) |
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