CN218180069U - Liquid level detection device - Google Patents
Liquid level detection device Download PDFInfo
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- CN218180069U CN218180069U CN202221861393.1U CN202221861393U CN218180069U CN 218180069 U CN218180069 U CN 218180069U CN 202221861393 U CN202221861393 U CN 202221861393U CN 218180069 U CN218180069 U CN 218180069U
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- level detection
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Abstract
The utility model provides a liquid level detection device, this liquid level detection device includes: a housing having a reflecting surface and an accommodating chamber; a detection element disposed within the containment chamber; the detection element comprises at least one light emitter for emitting incident light to the reflection surface and at least one light receiver for generating signals after receiving the light. The utility model provides a liquid level detection device, this liquid level detection device can install on the container, utilizes the reflection characteristic of light, whether receives the height that the liquid level was judged to the light that the light emitter transmitted through light receiver, and it is high to detect the accuracy, reliable and stable.
Description
Technical Field
The utility model relates to a liquid level detection technical field, in particular to liquid level detection device.
Background
The water tank and the water tank are containers for storing water and are used for occasions needing water storage, such as drinking equipment, water treatment equipment, fire fighting equipment and the like. The water using device connected with the water storage device consumes water in the water storage device, the existing water storage amount is dynamically reduced, appropriate water is required to be supplemented into the water storage device to meet the requirement of the water using device, and if the supplemented water amount is too small, the water using requirement cannot be met; the excessive water amount can cause the overflow of water, and cause safety accidents.
The current liquid level detection method for the container is usually a scale method, the liquid level is observed manually on site continuously through a scale, then the water inlet pump and the drain pipe valve are controlled manually to control the existing water storage capacity in the container, great manpower is consumed, and a great deal of inconvenience is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a liquid level detection device aims at detecting the liquid level height of container effectively.
In order to achieve the above purpose, the technical scheme of the utility model has:
the utility model provides a liquid level detection device, include: the shell is provided with an accommodating cavity, and the outer wall of the shell is provided with a reflecting surface; a detection element disposed within the containment chamber; the detection element comprises at least one light emitter for emitting incident light to the reflection surface and at least one light receiver for generating signals after receiving the light.
Compared with the prior art, the utility model provides a liquid level detection device, this liquid level detection device can install on the container, utilizes the reflection characteristic of light, judges the height of liquid level through whether light that light receiver received the light transmitter transmission, and it is high to detect the accuracy, reliable and stable.
In a preferred embodiment, the housing is made of a light-transmissive material.
In a preferred embodiment, the number of the optical transmitters and the optical receivers is plural; the plurality of light emitters and the plurality of light receivers are distributed along the length direction of the shell.
In a preferred embodiment, the detecting element further includes a circuit board, and the circuit board is provided with the light emitter and the light receiver.
In a preferred embodiment, the circuit board comprises a flexible circuit board.
In a preferred embodiment, the circuit boards include a first circuit board and a second circuit board arranged in a staggered manner, the optical transmitters are arranged on the first circuit board, and the optical receivers are arranged on the second circuit board; the accommodating cavity is internally provided with a plurality of limiting grooves which are in abutting contact with the first circuit board and the second circuit board.
In a preferred embodiment, the first circuit board is provided with a plurality of protrusions, the second circuit board is provided with a plurality of notches, and the notches are correspondingly matched and connected with the protrusions.
In a preferred embodiment, the detection element further comprises a controller and at least one signal lamp, the controller and the signal lamp are both arranged on the circuit board, and the controller is electrically connected with the signal lamp.
In a preferred embodiment, the illumination range of the signal lamp is located outside the light receiving range of the light receiver.
For a better understanding and an implementation, the present invention is described in detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural view of a liquid level detection device according to embodiment 1 of the present invention;
FIG. 2 is a schematic cross-sectional view of a liquid level detecting device according to embodiment 1 of the present invention;
FIG. 3 is a schematic structural diagram of a detection element in embodiment 1 of the present invention;
fig. 4 is an exploded schematic view of a circuit board according to embodiment 1 of the present invention;
FIG. 5 is a schematic cross-sectional view of another structure of the liquid level detecting device according to embodiment 1 of the present invention;
FIG. 6 is a schematic cross-sectional view of a liquid level detection apparatus according to embodiment 2 of the present invention;
fig. 7 is a schematic cross-sectional view of another structure of a liquid level detection device according to embodiment 2 of the present invention.
Description of the reference numerals:
100-shell, 110-reflecting surface, 120-containing cavity, 121-limiting groove, 200-detecting element, 210-light emitter, 220-light receiver, 230-circuit board, 231-first circuit board, 2311-bulge, 232-second circuit board, 2321-notch, 240-signal lamp.
Detailed Description
In order to better illustrate the present invention, the following detailed description of the present invention is made with reference to the accompanying drawings.
It should be understood that the embodiments described are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the present application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application, as detailed in the appended claims. In the description of the present application, it is to be understood that the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not necessarily used to describe a particular order or sequence, nor are they to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
Further, in the description of the present application, "a plurality" means two or more unless otherwise specified. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
Example 1
Specifically, as shown in fig. 1 to 5, the liquid level detection apparatus includes: a housing 100 having a receiving cavity 120, the outer wall of the housing 100 being provided with a reflecting surface 110; a detection element 200 disposed within the accommodation chamber 120; the detecting element 200 includes at least one light emitter 210 for emitting incident light toward the reflecting surface 110 and at least one light receiver 220 for generating a signal upon receiving the light.
Compared with the prior art, the utility model provides a liquid level detection device, this liquid level detection device can install on the container, utilizes the total reflection characteristic of light, whether receives the height that light emitter 210 launched determines the liquid level through light receiver 220, and it is high to detect the accuracy, reliable and stable.
The liquid level detecting device works on the principle that when the container is empty of liquid (such as water), the refractive index of the reflecting surface 110 is different from that of air, light emitted by the light emitter is reflected to the light receiver 220, and the light receiver 220 generates a signal after receiving the light; when the container contains liquid, since the refractive index of the reflection surface 110 is the same as that of the liquid, when an incident light is incident on the reflection surface 110, the incident light emitted by the light emitter 210 passes through the reflection surface, and the light receiver 220 does not receive the light.
It should be noted that the intersection point of the emitting direction of the light emitter 210 and the receiving direction of the light receiver 220 is located on the outer wall surface of the housing 100.
In one embodiment, the housing 100 is made of a light-transmissive material to allow incident light of the light emitter 210 to be incident on a reflective surface.
In one embodiment, the number of the optical transmitters 210 and the number of the optical receivers 220 are both plural; a plurality of light emitter 210 and a plurality of light receiver 220 follows the length direction of casing 100 distributes and sets up, is a plurality of light emitter 210 and a plurality of light receiver 220 top-down distributes to form a plurality of detection liquid levels, so the utility model discloses can highly detect a plurality of liquid levels, cooperate the water pump to work.
In one embodiment, the detecting element 200 further includes a circuit board 230, and the circuit board 230 is provided with the light emitter 210 and the light receiver 220. The optical transmitter 210 and the optical receiver 220 are mounted on the circuit board 230 without additional wires for connection, simplifying the mounting process.
Further, the circuit board 230 includes a first circuit board 231 and a second circuit board 232 which are disposed in a staggered manner, the optical transmitter 210 is disposed on the first circuit board 231, and the optical receiver 220 is disposed on the second circuit board 232; the accommodating cavity 120 is internally provided with a plurality of limiting grooves 121 which are abutted and contacted with the first circuit board 231 and the second circuit board 232 so as to limit the first circuit board 231 and the second circuit board 232 and prevent the circuit board 230 from shaking to influence the accurate detection of the specific liquid level height. The first circuit board 231 and the second circuit board 232 may be arranged in a V-shape and an X-shape in a staggered manner, and when the first circuit board 231 and the second circuit board 232 are arranged in an X-shape in a staggered manner, the number of the limiting grooves 121 is four, and the limiting grooves are respectively arranged at four corners of the accommodating cavity 120; when the first circuit board 231 and the second circuit board 232 are arranged in a V-shaped staggered manner, the number of the limiting grooves 121 is two, the two limiting grooves are respectively arranged at two adjacent corners of the accommodating cavity 120, and the V-shaped end of the circuit board 230 is abutted against the inner wall of the accommodating cavity 120.
Preferably, the first circuit board 231 is provided with a plurality of protrusions 2311, the second circuit board 232 is provided with a plurality of notches 2321, the plurality of notches 2321 are correspondingly matched and connected with the plurality of protrusions 2311, and the notches 2321 are matched and connected with the protrusions 2311 to increase limiting constraint, so that the first circuit board 231 and the second circuit board 232 are connected into a whole and are not easy to loosen, and the first circuit board 231 and the second circuit board 232 can be arranged in a staggered manner.
Further, the detecting element 200 further includes a controller and at least one signal lamp 240, the controller and the signal lamp 240 are both disposed on the circuit board 230, and the controller is electrically connected to the signal lamp 240. When the light receiver 220 does not receive the reflected light, the controller controls the signal lamp 240 to turn on, and the light emitted by the signal lamp 240 can be emitted to the outside of the liquid level detection device through the housing 100 for the user to see.
It should be noted that, the present invention may use the technical means commonly used in the art for the signal transmission between the circuit board 230, the optical receiver 220, the optical transmitter, the controller and the signal lamp 240, and the present invention is not limited thereto.
In one embodiment, when the number of the light receivers 220 and the number of the light emitters 210 are plural, the number of the signal lamps 240 is correspondingly plural, and the light of the plurality of signal lamps 240 is set to different colors, so as to improve the identification degree and facilitate the user to know the liquid level height.
Further, the illumination range of the signal lamp is located outside the light receiving range of the light receiver, so as to prevent the light emitted from the signal lamp 240 from affecting the normal operation of the light emitter 210 and the light receiver 220. In the present invention, the signal lamp 240 is installed on the second circuit board 232 and is kept away from the light receiver 220, the first circuit board 231 is installed on the signal lamp 240 and between the light receiver 220, the signal lamp 240 is separated from the light receiver 220 and the light emitter 210 by the first circuit board 231, so as to avoid the light emitted from the signal lamp 240 from affecting the normal operation of the light emitter 210 and the light receiver 220.
Example 2
Embodiment 2 is different from embodiment 1 in the structure of the circuit board.
As shown in fig. 6 and 7, the circuit board 230 includes a flexible circuit board, and the light emitter 210 and the light receiver 220 are disposed on the flexible circuit board 230. The utility model simplifies the installation steps by installing the light emitter 210 and the light receiver 220 on the same circuit board 230; two ends of the flexible circuit board are abutted to two adjacent notches 2321 in the accommodating cavity 120, and the middle of the flexible circuit board is abutted to the wall surface of the accommodating cavity 120 so as to position the flexible circuit board.
The utility model also provides a liquid level control equipment, it includes water pump, control circuit board 230 and as above liquid level detection device, control circuit board 230 respectively with the water pump reaches liquid level detection device electric connection. The utility model discloses a liquid level control device utilizes water pump, control circuit board 230 and level sensor's cooperation, utilizes the monitoring of liquid level to realize adding water in the automation of container, realizes intelligent processing.
It should be noted that the utility model discloses a technical means that control circuit board 230 and water pump, liquid level detection device's signal transmission can use the field commonly used, the utility model discloses do not restrict this.
When the liquid level of the container is lower than the detection liquid level, the light emitted by the light emitter 210 is emitted by the reflecting surface, the light receiver receives the reflected light, and the water pump pumps water into the container; until the liquid level of the container is equal to the detection liquid level, the light emitted by the light emitter 210 directly passes through the reflecting surface, the light receiver does not receive the reflected light, and the water pump stops pumping water into the container.
When the quantity that detects the liquid level is a plurality of, detect the liquid level and include upper limit detection liquid level and lower limit detection liquid level, the user can set for the upper limit detection liquid level and the lower limit detection liquid level of different positions according to the demand. When the liquid level is lower than the lower limit liquid level, the light emitted by the light emitter 210 for detecting the lower limit liquid level is reflected by the reflecting surface and then received by the corresponding light receiver 220, and the water pump is started and pumps water into the container;
when the liquid level reaches the lower limit liquid level but does not reach the upper limit liquid level, the incident light emitted by the light emitter 210 for detecting the upper limit liquid level is reflected by the reflecting surface and then received by the corresponding light receiver 220, and the water pump continues to pump water into the container;
when the liquid level reaches the upper limit liquid level, the light emitted by the light emitter 210 for detecting the upper limit liquid level directly passes through the reflection surface, the corresponding light receiver 220 does not receive the reflected light, and the water pump stops pumping water into the container.
It should be noted that, the signal generated by the optical receiver 220 after receiving the light may be a high level signal or a low level signal, which is determined according to the actual circuit, and the present invention is not limited thereto.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and modifications and variations of the present invention are also intended to fall within the scope of the appended claims. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (9)
1. A liquid level detection device, comprising:
the shell is provided with an accommodating cavity, and the outer wall of the shell is provided with a reflecting surface;
a detection element disposed within the containment chamber; the detection element comprises at least one light emitter for emitting incident light to the reflection surface and at least one light receiver for generating signals after receiving the light.
2. The fluid level detection apparatus of claim 1, wherein:
the shell is made of a light-transmitting material.
3. The liquid level detection device of claim 1, wherein:
the number of the optical transmitters and the number of the optical receivers are both multiple;
the plurality of light emitters and the plurality of light receivers are distributed along the length direction of the shell.
4. The fluid level detection apparatus of claim 1, wherein:
the detection element further comprises a circuit board, and the light emitter and the light receiver are arranged on the circuit board.
5. The liquid level detection apparatus of claim 4, wherein:
the circuit board includes a flexible circuit board.
6. The liquid level detection apparatus of claim 4, wherein:
the circuit board comprises a first circuit board and a second circuit board which are arranged in a staggered mode, the light emitter is arranged on the first circuit board, and the light receiver is arranged on the second circuit board;
the accommodating cavity is internally provided with a plurality of limiting grooves which are in abutting contact with the first circuit board and the second circuit board.
7. The fluid level detection apparatus of claim 6, wherein:
the first circuit board is provided with a plurality of bulges, the second circuit board is provided with a plurality of notches, and the notches are correspondingly matched and connected with the bulges.
8. The liquid level detection apparatus of claim 4, wherein:
the detection element further comprises a controller and at least one signal lamp, the controller and the signal lamp are arranged on the circuit board, and the controller is electrically connected with the signal lamp.
9. The liquid level detection device of claim 8, wherein:
the irradiation range of the signal lamp is positioned outside the light receiving range of the light receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221861393.1U CN218180069U (en) | 2022-07-19 | 2022-07-19 | Liquid level detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221861393.1U CN218180069U (en) | 2022-07-19 | 2022-07-19 | Liquid level detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218180069U true CN218180069U (en) | 2022-12-30 |
Family
ID=84614219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221861393.1U Active CN218180069U (en) | 2022-07-19 | 2022-07-19 | Liquid level detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218180069U (en) |
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2022
- 2022-07-19 CN CN202221861393.1U patent/CN218180069U/en active Active
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