CN209894297U - Circuit board and liquid level measuring device - Google Patents
Circuit board and liquid level measuring device Download PDFInfo
- Publication number
- CN209894297U CN209894297U CN201822277116.6U CN201822277116U CN209894297U CN 209894297 U CN209894297 U CN 209894297U CN 201822277116 U CN201822277116 U CN 201822277116U CN 209894297 U CN209894297 U CN 209894297U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- liquid level
- sleeve
- circuit
- present
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 50
- 238000005259 measurement Methods 0.000 claims abstract description 35
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 12
- 239000002828 fuel tank Substances 0.000 description 8
- 239000000446 fuel Substances 0.000 description 5
- 230000010354 integration Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000010763 heavy fuel oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Abstract
The utility model provides a circuit board and liquid level measurement device relates to liquid level measurement technical field. The circuit board is integrated with a liquid level measuring circuit, and the circuit board is provided with a plurality of cut-off gaps at equal intervals. The utility model provides a circuit board and liquid level measurement device have reduced manufacturing cost and make the more convenient advantage of installation.
Description
Technical Field
The utility model relates to a liquid level measurement technical field particularly, relates to a circuit board and liquid level measurement device.
Background
At present, as more and more machines use fuel, the detection of the quantity of fuel remaining in the tank is of vital importance in order to achieve the management of the quantity of fuel remaining.
For detecting the residual fuel quantity in the fuel tank, a liquid level measuring circuit is generally adopted for detecting, meanwhile, the liquid level measuring circuit is integrated on a circuit board, and then the circuit board is installed in the fuel tank, so that the residual fuel quantity is detected.
However, since the depth of the oil tanks of different machines is different, in order to make the length of the circuit board the same as the depth of the oil tank, the oil tank of each machine needs to be customized to produce one circuit board, which increases the production cost and is inconvenient to use.
In view of the above, how to solve the above problems is the focus of attention of those skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a circuit board to the production circuit board that needs the customization in solving prior art to the oil tank of the different degree of depth has increased manufacturing cost and awkward problem.
Another object of the utility model is to provide a liquid level measuring device to the production circuit board that needs the customization in solving prior art to the oil tank of the different degree of depth has increased manufacturing cost and awkward problem.
The utility model discloses a realize like this:
on the one hand, the embodiment of the utility model provides a circuit board, the integration has the liquid level measurement circuit on the circuit board, just equidistantly on the circuit board be provided with a plurality of breachs of cutting.
Further, the circuit board sets up to rectangular shape, liquid level measurement circuit includes a plurality of measuring unit, a plurality of measuring unit equidistant set up in the circuit board, cut off the breach and set up between per two measuring unit.
Further, the liquid level measurement circuit further comprises a current source, and the current source is arranged at one end of the circuit board.
Further, each of the truncation notches is provided in a pair.
Further, the shape of the truncation notch includes an arc or a polygon.
Further, the shape of the truncation notch comprises a semicircle and a triangle.
On the other hand, the embodiment of the utility model provides a liquid level measuring device is still provided, liquid level measuring device includes magnetic float, sleeve pipe and circuit board, the integration has the liquid level measurement circuit on the circuit board, just be provided with a plurality of breachs that cut on the circuit board equidistantly, the sleeve pipe cover is located outside the circuit board, the magnetic float cover is located outside the sleeve pipe, the magnetic float with sleeve pipe sliding connection.
Further, the sleeve comprises a carbon fiber sleeve.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model provides a circuit board and liquid level measurement device, wherein, the integration has the liquid level measurement circuit on this circuit board, and is provided with a plurality of breachs of cuting on the circuit board equidistantly. Through setting up the liquid level measurement circuit on the circuit board, can be at the different voltage values of the remaining degree of depth output of fuel to the measurement to the liquid level has been realized. And because the circuit board is provided with the cut-off notch, the circuit board can be produced according to a uniform specification during production, and in practical use, an installer can adaptively break the circuit board through the cut-off notch according to the depth of the oil tank, so that the rest circuit board can be suitable for the height of the current oil tank, the production cost is reduced, and the installation is more convenient.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Fig. 1 shows a schematic structural diagram of a circuit board provided by an embodiment of the present invention.
Fig. 2 shows a schematic structural diagram of a liquid level measuring device provided by an embodiment of the present invention.
Icon: 100-a circuit board; 120-truncation notch; 130-a measurement unit; 140-a current source; 200-a liquid level measuring device; 210-a cannula; 220-magnetic float.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
First embodiment
Referring to fig. 1, the present invention provides a circuit board 100, a liquid level measuring circuit is integrated on the circuit board 100, and a plurality of cut-off notches 120 are disposed on the circuit board 100 at equal intervals.
Specifically, in the present embodiment, the measurement of the liquid level height can be realized by the liquid level measurement circuit. Wherein the level measurement circuit comprises a plurality of measurement units 130 and a current source 140, wherein each level measurement circuit is electrically connected to the current source 140. Each measuring unit 130 includes a load resistor, the measuring units 130 are cascaded, that is, the load resistors of the measuring units 130 are connected in series and then connected to the current source 140, and meanwhile, the measuring units 130 are independent of each other, that is, each measuring unit 130 can be independently closed, so that a closed loop can be formed between any measuring unit 130 and the current source 140 in the liquid level measuring circuit.
The working principle of the liquid level measuring device 200 provided by the embodiment is as follows: all the measuring units 130 are in a normally open state, when the liquid level changes, the measuring units 130 corresponding to the current liquid level are closed, so that in a closed loop, the number of load resistors in the closed loop corresponding to different liquid levels is different, and due to the fact that the current source 140 is adopted for supplying power, a power supply in the closed loop is fixed, the number of the measuring units 130 in the closed loop can be calculated through different voltages output by the output end, and then the height of the current liquid level is determined.
Specifically, for convenience of measurement, the circuit board 100 is configured to be elongated, so as to integrate the liquid level measuring circuit, wherein the current source 140 is disposed at one end of the circuit board 100, and the plurality of measuring units 130 sequentially extend from a direction close to the current source 140 to the other end of the circuit board 100, so that the plurality of measuring units 130 can be arranged on the circuit board 100 in a linear manner. When the installer installs the liquid level measurement is performed by placing the end where the measuring unit 130 is located at the bottom of the tank and the end of the current source 140 at the top of the tank.
Meanwhile, a plurality of measurement units 130 are disposed on the circuit board 100 at equal intervals for measurement.
In the process of installing the circuit board 100 by an installer, since the depth of each fuel tank is not the same, circuit boards 100 of different lengths are required for installation. For example, if the height of the a-type fuel tank is 0.5m, the length of the circuit board 100 to be mounted thereon is 0.5 m; the height of the B-type fuel tank is 0.6m, and the length of the circuit board 100 to be mounted thereon is 0.6 m.
Because if the circuit board 100 matched with each oil tank is manufactured in a customized mode, the processing is inconvenient, and the same product may have similar models, so that the height difference of the similar oil tanks is small, when the circuit board 100 is manufactured, different circuit boards 100 are manufactured respectively, and the processing cost is increased. In addition, in the installation process of the installer, the circuit board 100 may be taken by mistake, which may cause inconvenience to the installer.
In view of this, in the embodiment, a plurality of cut-off notches 120 are provided on the circuit board 100 at equal intervals, and when the lengths of the fuel tank and the circuit board 100 are not matched, a worker can selectively cut off the circuit board 100 according to the actual height of the fuel tank, so that the remaining circuit boards 100 can correspond to the height of the fuel tank.
In particular, the truncation notch 120 is disposed between every two measurement units 130. Because the measurement units 130 are independent units, any measurement unit 130 can be independently conducted, and thus when the circuit board 100 is broken along the cut-off notch 120, the number of the measurement units 130 is reduced, but the effect of measuring the liquid level can still be achieved.
Further, since the position of the current source 140 on the circuit board 100 cannot be removed all the time, in order to avoid the situation that the installer will not break the circuit board 100 at the current source 140, in the present embodiment, the plurality of cut-off notches 120 are only disposed at the measuring unit 130, and the cut-off notches 120 are not disposed at the end position where the current source 140 is disposed, so that the current source 140 is protected, and the processing steps are also reduced.
Further, in order to enable the installer to easily break off the redundant circuit board 100, in the present embodiment, each of the cut-off notches 120 is disposed in pairs, that is, notches are disposed on both sides of the circuit board 100, and the two notches disposed in pairs are on the same horizontal plane. On one hand, an installer can break the circuit board 100 along the pair of the cut-off notches 120, so that the circuit board 100 is stressed uniformly and is easier to break; on the other hand, through the truncation breach 120 that sets up in pairs, its fracture line is the straight line of connecting two breachs for the fracture face is more level and smooth, at level measurement's in-process, can not influence level measurement's precision.
Meanwhile, the shape of the truncation notch 120 is not limited in this embodiment, and may be an arc shape or a polygonal shape. When it is set to be arc-shaped, the shape of the cut-off gap 120 may be set to be semicircular; when the shape of the truncation notch 120 is polygonal, the shape of the truncation notch may be triangular or rectangular, and the like, which is not limited in this embodiment.
Second embodiment
Referring to fig. 2, the present invention provides a liquid level measuring device 200 according to the present invention, the liquid level measuring device 200 includes a magnetic float 220, a sleeve 210 and the circuit board 100 according to the first embodiment, wherein the sleeve 210 is sleeved outside the circuit board 100, the magnetic float 220 is sleeved outside the sleeve 210, and the magnetic float 220 is slidably connected to the sleeve 210.
The sleeve 210 protects the circuit board 100 from contacting with liquid, and at the same time, limits the magnetic float 220, so that the magnetic float 220 can only move along the axial direction of the sleeve 210. In view of this, the sleeve 210 provided in the present embodiment includes a carbon fiber sleeve, and certainly, in some other embodiments, sleeves made of other materials may be adopted, which is not limited in this embodiment.
The working principle of the liquid level measuring device 200 provided by the embodiment is as follows:
the whole liquid level measuring device 200 is vertically installed with the bottom of the oil tank, the magnetic floater 220 is sleeved outside the sleeve 210, the magnetic floater 220 is suspended on the surface of liquid and can move along with the change of the liquid level, when the magnetic floater 220 moves to any position, the measuring unit 130 at the position in the circuit board 100 in the sleeve 210 is closed under the action of magnetic field force to form a closed loop, a plurality of load resistors are arranged in the closed loop, the number of the measuring units 130 in the closed loop can be determined by acquiring an output voltage value, the number of the remaining measuring units 130 is further determined, and the distance between every two measuring units 130 is fixed, so that the current liquid level can be calculated.
To sum up, the utility model provides a circuit board and liquid level measurement device, wherein, the integration has the liquid level measurement circuit on this circuit board, and is provided with a plurality of breachs of cuting on the circuit board equidistantly. Through setting up the liquid level measurement circuit on the circuit board, can be at the different voltage values of the remaining degree of depth output of fuel to the measurement to the liquid level has been realized. And because the circuit board is provided with the cut-off notch, the circuit board can be produced according to a uniform specification during production, and in practical use, an installer can adaptively break the circuit board through the cut-off notch according to the depth of the oil tank, so that the rest circuit board can be suitable for the height of the current oil tank, the production cost is reduced, and the installation is more convenient.
In the description of the present invention, it should be noted that the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A circuit board is characterized in that a liquid level measuring circuit is integrated on the circuit board, and a plurality of cut-off gaps are arranged on the circuit board at equal intervals; wherein the content of the first and second substances,
the circuit board sets up to rectangular shape, liquid level measurement circuit includes a plurality of measuring unit, a plurality of measuring unit equidistant set up in the circuit board, cut the breach and set up between per two measuring unit.
2. The circuit board of claim 1, wherein the level measurement circuit further comprises a current source disposed at one end of the circuit board.
3. The circuit board of claim 1, wherein each of the cutout notches is provided in pairs.
4. The circuit board of claim 1, wherein the shape of the truncation notch comprises an arc or polygon.
5. The circuit board of claim 3, wherein the shape of the cutout comprises a semi-circle and a triangle.
6. A liquid level measuring device, comprising a magnetic float, a sleeve and the circuit board of any one of claims 1 to 5, wherein the sleeve is sleeved outside the circuit board, the magnetic float is sleeved outside the sleeve, and the magnetic float is slidably connected with the sleeve.
7. The fluid level measuring device of claim 6, wherein the sleeve comprises a carbon fiber sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822277116.6U CN209894297U (en) | 2018-12-30 | 2018-12-30 | Circuit board and liquid level measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822277116.6U CN209894297U (en) | 2018-12-30 | 2018-12-30 | Circuit board and liquid level measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209894297U true CN209894297U (en) | 2020-01-03 |
Family
ID=68990751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822277116.6U Active CN209894297U (en) | 2018-12-30 | 2018-12-30 | Circuit board and liquid level measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209894297U (en) |
-
2018
- 2018-12-30 CN CN201822277116.6U patent/CN209894297U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7814787B2 (en) | Combined oil level or condition sensor and sight oil level gage | |
| JP6771317B2 (en) | Electric circuit temperature monitoring system, electric circuit temperature monitoring device and electric circuit temperature monitoring method | |
| ATE447163T1 (en) | MEASURING DEVICE AND CONDUCTIVITY MEASUREMENT DEVICE FOR DETERMINING FLOW RATES OF ELECTRICALLY CONDUCTIVE LIQUIDS, MEASURING ELEMENT AND METHOD | |
| US20150033568A1 (en) | Triangle ruler capable of measuring angles | |
| CN209894297U (en) | Circuit board and liquid level measuring device | |
| US11048279B2 (en) | Liquid handling system monitoring systems and methods | |
| CN104075693B (en) | A kind of triangle level meter | |
| CN205748386U (en) | One kind of multiple position electric energy meter case fixed hole positions determine chi | |
| FR3014722B1 (en) | PRODUCTION INSTALLATION | |
| CN103712867B (en) | A kind of steel wire rotary bending tester | |
| DE202010016564U1 (en) | Surveying equipment and surveying system | |
| DE60237871D1 (en) | Capacitive liquid level sensor for underwater pumps | |
| CN103115611A (en) | Angle measuring device | |
| CN203489948U (en) | Excavator and liquid level sensor thereof | |
| DE102012007825A1 (en) | Level switch unit for liquid containers, for use with fuel reservoir, recognizes temperature difference between air conditioning probes based on determination of whether liquid level is within preset liquid level, and outputs alarm | |
| CN207763777U (en) | A kind of fuel level sensor | |
| CN203283965U (en) | Instrument monitoring control box with cable reeling and unreeling function | |
| CN203310478U (en) | Electrode type liquid level meter | |
| JP3197721U (en) | Card remaining counter counter | |
| CN205438651U (en) | Cable is with measuring and transversal device | |
| CN203773825U (en) | Novel experiment-used resistor | |
| CN204255318U (en) | For measuring the measurement mechanism of bolt specification | |
| CN215453629U (en) | Medical instrument lower cover convenient to dismouting | |
| CN102043880B (en) | Thick-film resistor layout design device | |
| CN105798968A (en) | Plastic hose cutter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 7 / F, area a, building 6, No. 200, Tianfu 5th Street, high tech Zone, Chengdu, Sichuan 610000 Patentee after: CHENGDU JOUAV AUTOMATION TECHNOLOGY Co.,Ltd. Country or region after: China Address before: 6a7 / F, Jingrong International Plaza, No.200, Tianfu Fifth Street, hi tech Zone, Chengdu, Sichuan 610000 Patentee before: CHENGDU JOUAV AUTOMATION TECHNOLOGY Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |