CN220853776U - Flexible capacitive oil level sensor - Google Patents
Flexible capacitive oil level sensor Download PDFInfo
- Publication number
- CN220853776U CN220853776U CN202322790487.5U CN202322790487U CN220853776U CN 220853776 U CN220853776 U CN 220853776U CN 202322790487 U CN202322790487 U CN 202322790487U CN 220853776 U CN220853776 U CN 220853776U
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- CN
- China
- Prior art keywords
- flexible
- level sensor
- outer probe
- oil level
- probe rod
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- 239000000523 sample Substances 0.000 claims abstract description 48
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
- 239000007788 liquid Substances 0.000 description 13
- 239000010935 stainless steel Substances 0.000 description 7
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
The utility model provides a flexible capacitive oil level sensor which comprises a flexible outer probe rod and an inner electrode, wherein one end of the flexible outer probe rod is fixed on a mounting joint, the inner electrode is arranged in an inner cavity of the flexible outer probe rod, an insulating sleeve is arranged on the side wall of the inner cavity of the flexible outer probe rod, one end, far away from the flexible outer probe rod, of the mounting joint is fixedly connected with a shell, and a detection module is arranged in the inner cavity of the shell and is electrically connected with the flexible outer probe rod and the inner electrode. A flexible capacitive oil level sensor can adapt to various environments, and a flexible outer probe rod and an inner electrode arranged on the flexible capacitive oil level sensor can be bent and can be operated in a narrow space.
Description
Technical Field
The utility model belongs to the technical field of oil level measurement, and particularly relates to a flour grinding device.
Background
The capacitive liquid level sensor is suitable for continuously detecting the liquid level of liquid such as water, oil and the like. The principle of the capacitive liquid level sensor is that the capacitance formed by filling liquid medium between the positive probe and the negative probe is linearly changed along with the liquid level, and the change of the capacitance (namely the change of the liquid level) is converted into a standard electric signal to be output.
At present, all domestic automobiles have oil level sensors, but the current oil level sensors mainly have ultrasonic liquid level sensors, radar liquid level sensors, magneto displacement sensors, input type sensors and capacitive probe rod sensors on the market, and probes of the sensors are rigid and cannot be bent and cannot be suitable for environments with smaller operation space.
For this purpose, we devised a flexible capacitive oil level sensor that solves the above-mentioned problems.
Disclosure of utility model
In order to solve the technical problems in the background technology, as shown in fig. 3, an existing liquid level sensor A in a special environment cannot be placed into an oil tank, and the utility model provides a flexible capacitive oil level sensor.
Preferably, the flexible outer probe rod is cylindrical in an initial state, and is formed by winding stainless steel wires.
Preferably, the internal electrode is columnar in an initial state, and the internal electrode is made of stainless steel wires.
Preferably, an electrical interface is arranged at the top of the outer side of the shell, and a cable is arranged on the electrical interface and is electrically connected with the detection module.
Preferably, the end of the flexible outer probe rod, which is far away from the installation joint, is provided with a bottom bushing, and the end of the flexible outer probe rod, which is located at the installation joint, is provided with a top bushing.
Preferably, the detection module adopts an STM32L 051C 8T6 microcontroller.
Preferably, the insulating sleeve is a PVC insulating sleeve.
Preferably, the top bushing is provided with a placement hole for placing the internal electrode and a connecting wire of the flexible outer probe rod and the detection module.
Preferably, the bottom lining and the top lining are made of rubber, and the middle part of the bottom lining is provided with a through hole.
Compared with the prior art, the technical scheme provided by the utility model has the following beneficial technical effects:
The utility model provides a flexible capacitive oil level sensor its various environment of adaptation, flexible outer probe rod and the inner electrode that set up on it can be buckled, and it can operate in narrow and small space.
Drawings
Fig. 1 is a schematic structural diagram of a flexible capacitive oil level sensor according to the present utility model;
Fig. 2 is a schematic structural view of a flexible outer probe rod of the flexible capacitive oil level sensor according to the present utility model;
FIG. 3 is a schematic diagram of a prior art product level sensor in use scenario;
Fig. 4 is a schematic diagram of a use scenario of a flexible capacitive oil level sensor according to the present invention.
Reference numerals: 1. a flexible outer probe; 2. an internal electrode; 3. installing a joint; 4. a bottom bushing; 5. a top liner; 6. an insulating sleeve; 7. a housing; 8. a detection module; 9. an electrical interface; 10. a cable;
Detailed Description
The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.
As shown in FIG. 1, a flexible capacitive oil level sensor comprises a flexible outer probe rod 1 and an inner electrode 2, wherein one end of the flexible outer probe rod 1 is fixed on a mounting joint 3, the inner electrode 2 is arranged in an inner cavity of the flexible outer probe rod 1, an insulating sleeve 6 is arranged on the side wall of the inner cavity of the flexible outer probe rod 1, the mounting joint 3 is fixedly connected with a shell 7 at one end far away from the flexible outer probe rod 1, a detection module 8 is arranged in the inner cavity of the shell 7, the detection module 8 is electrically connected with the flexible outer probe rod 1 and the inner electrode 2, and the detection module 8 adopts an STM32L 051C 8T6 microcontroller.
Referring to fig. 2, the flexible outer probe rod 1 is cylindrical in an initial state, the flexible outer probe rod 1 is wound by stainless steel wires, and when the environment is required to be made to disallow the flexible outer probe rod 1 in the initial state to be directly inserted into an oil tank, the flexible outer probe rod 1 can be bent and then put in, and the stainless steel also has better corrosion resistance.
Referring to fig. 1, in the initial state, the internal electrode 2 is in a column shape, the internal electrode 2 is made of stainless steel wires, the internal electrode 2 made of stainless steel wires can be bent, and the stainless steel also has better corrosion resistance.
The top of the outer side of the shell 7 is provided with an electric interface 9, the electric interface 9 is provided with a cable 10, the interface of the electric interface 9 and the cable 10 is subjected to sealing treatment, the cable 10 is electrically connected with the detection module 8, one end of the cable 10 is connected with the detection module 8, and the other end of the cable 10 is connected with external equipment such as a computer or a display instrument.
The end of the flexible outer probe rod 1, which is far away from the installation joint, is provided with a bottom bushing 4, and the end of the flexible outer probe rod 1, which is located at the installation joint 3, is provided with a top bushing 5.
The insulating sleeve 6 adopts a PVC insulating sleeve, and the design of the insulating sleeve 6 can prevent the internal electrode 2 from being in contact short circuit with the flexible outer probe rod 1 when the flexible outer probe rod is bent.
The top bushing 5 is provided with a placing hole for placing the internal electrode 2 and connecting wires of the flexible outer probe rod 1 and the detection module 8.
The bottom lining 4 and the top lining 5 are made of rubber, through holes are formed in the middle of the bottom lining 4, and the purpose of the through holes is that oil can enter the inner cavity of the outer flexible probe rod 1 and then contact with the inner electrode 2.
When the liquid level sensor is used, if the use environment allows direct insertion, the whole outer flexible probe rod 1 is directly inserted into a mailbox, when the liquid level changes, the capacitance between two electrodes (the outer flexible probe rod 1 and the inner electrode 2) changes according to the capacitance principle, and the detection module converts and outputs the change into the change of the liquid level height according to the change of the measured capacitance value.
If the use environment is as shown in fig. 4, the flexible outer probe rod 1 can be bent at this time, and can be plugged into the oil tank, wherein B is a flexible capacitive oil level sensor provided by the utility model.
It is to be understood that the above-described embodiments of the present utility model are merely illustrative of or explanation of the principles of the present utility model and are in no way limiting of the utility model. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model should be included in the scope of the present utility model. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.
Claims (9)
1. The utility model provides a flexible capacitive oil level sensor, includes flexible outer probe rod (1) and inner electrode (2), its characterized in that: one end of the flexible outer probe rod (1) is fixed on the mounting joint (3), an inner electrode (2) is arranged in the inner cavity of the flexible outer probe rod (1), an insulating sleeve (6) is arranged on the side wall of the inner cavity of the flexible outer probe rod (1), one end of the mounting joint (3) away from the flexible outer probe rod (1) is fixedly connected with the outer shell (7), a detection module (8) is arranged in the inner cavity of the outer shell (7), and the detection module (8) is electrically connected with the flexible outer probe rod (1) and the inner electrode (2).
2. A flexible capacitive oil level sensor according to claim 1, characterized in that the flexible outer probe (1) is cylindrical in the initial state, the flexible outer probe (1) being wound from stainless steel wire.
3. A flexible capacitive oil level sensor according to claim 1, characterized in that the inner electrode (2) is cylindrical in shape in the initial state, and the inner electrode (2) is made of stainless steel wire.
4. A flexible capacitive oil level sensor according to claim 1, characterized in that the outer top of the housing (7) is provided with an electrical interface (9), the electrical interface (9) is provided with a cable (10), and the cable (10) is electrically connected with the detection module (8).
5. A flexible capacitive oil level sensor according to claim 1, characterized in that the end of the flexible outer probe (1) remote from the mounting joint is provided with a bottom bushing (4), and the end of the flexible outer probe (1) located at the mounting joint (3) is provided with a top bushing (5).
6. A flexible capacitive oil level sensor according to claim 4, characterized in that the detection module (8) employs an STM32L 051C 8T6 microcontroller.
7. A flexible capacitive oil level sensor according to claim 1, characterized in that the insulating sleeve (6) is a PVC insulating sleeve.
8. A flexible capacitive oil level sensor according to claim 5, characterized in that the top bushing (5) is provided with a placement hole for placing the internal electrode (2) and the connecting wires of the flexible outer probe rod (1) and the detection module (8).
9. A flexible capacitive oil level sensor as claimed in claim 5, characterized in that the bottom bushing (4) and the top bushing (5) are made of rubber, and the middle part of the bottom bushing (4) is provided with a through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322790487.5U CN220853776U (en) | 2023-10-18 | 2023-10-18 | Flexible capacitive oil level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322790487.5U CN220853776U (en) | 2023-10-18 | 2023-10-18 | Flexible capacitive oil level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220853776U true CN220853776U (en) | 2024-04-26 |
Family
ID=90739606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322790487.5U Active CN220853776U (en) | 2023-10-18 | 2023-10-18 | Flexible capacitive oil level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220853776U (en) |
-
2023
- 2023-10-18 CN CN202322790487.5U patent/CN220853776U/en active Active
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