CN215573244U - Double-ring-shaped body type angular displacement potentiometer for oil level sensor - Google Patents
Double-ring-shaped body type angular displacement potentiometer for oil level sensor Download PDFInfo
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- CN215573244U CN215573244U CN202121206846.2U CN202121206846U CN215573244U CN 215573244 U CN215573244 U CN 215573244U CN 202121206846 U CN202121206846 U CN 202121206846U CN 215573244 U CN215573244 U CN 215573244U
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 24
- 239000004020 conductor Substances 0.000 claims abstract description 19
- 239000000446 fuel Substances 0.000 claims description 10
- 230000009977 dual effect Effects 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims 1
- 239000002002 slurry Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
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Abstract
The utility model discloses a double-ring-shaped body type angular displacement potentiometer for an oil level sensor, wherein a rotating shaft penetrates through a through hole in a shell and is connected with the shell through a bearing, a first insulating sleeve and a second insulating sleeve are respectively sleeved on the rotating shaft, a first collecting ring is sleeved on the first insulating sleeve, a resistance working belt is arranged on one side surface of the first ring-shaped body, two ends of the resistance working belt are respectively connected with two power supply electrodes, a second collecting ring is sleeved on the second insulating sleeve, and a conductor working belt is arranged on one side surface of the second ring-shaped body. According to the oil level position correction device, the rotation angle detection structure and the switch control structure are arranged on one potentiometer and are driven by the same rotating shaft, so that the rotation angle detection function and the accurate switch control function can be realized, accurate closed-loop control is realized, the closed-loop control function can be realized even if the function of detecting the rotation angle of the rotating shaft fails, and the oil level position can be corrected by comparing time and slippage.
Description
Technical Field
The utility model relates to an angular displacement potentiometer, in particular to a double-circular-ring-shaped body type angular displacement potentiometer for an oil level sensor.
Background
The angular displacement potentiometer is also called as a rotary potentiometer, is used for detecting the rotation angle and position of the motion of a rotary machine and outputting an electrical signal, and is widely applied to the fields of industry, ships, aviation, aerospace and the like. The basic structure of the angular displacement potentiometer comprises a shell, a rotating shaft, a bearing, an insulating sleeve, a collecting ring, an electric brush and a resistor body, wherein the inner end of the rotating shaft penetrates through a through hole of the shell from outside to inside and is arranged in the shell through the bearing; the basic working principle is as follows: the rotating shaft rotates to drive the insulating sleeve, the collecting ring and the electric brush to rotate together, the electric brush rotates on the resistor body in a contact sliding mode, the changed electric signals are transmitted to the collecting ring, the electric signals on the collecting ring are transmitted to the resistor body through the transmission structure and then transmitted to an external device, and therefore the rotating angle information of the rotating shaft is obtained.
The conventional angular displacement potentiometer has one or more resistor bodies, but the resistor bodies are formed by arranging a resistor belt on the surface of a resistor body base body, and the output signal of the resistor body is a variable electric signal and is used for detecting the rotation angle of the rotating shaft. However, in practical applications, some situations need to detect the rotation angle of the rotating shaft and simultaneously implement a corresponding switch control function, and in such a situation, the conventional angular displacement potentiometer cannot meet the application requirements, and an additional switch control component is needed, so that the use cost is increased, more importantly, the occupied space is increased, and the implementation in a narrow space is difficult.
For example, a fuel level sensor is a sensor for detecting a fuel level, and conventional fuel level sensors are classified into two types: one is to use the inductance coil as the basic detecting element, it is to use the float to drive the inductance coil, change the oscillation frequency of the circuit of shaking, and then measure the oil (liquid) level by detecting its frequency through the frequency meter, the structure of this kind of fuel level sensor is complicated, the debugging is troublesome, with high costs, the price is expensive, can't be used extensively; the oil level sensor is compact in structure, simple in operation, good in hand feeling, more complete in integral structure and function and has wide development prospect.
The second oil level sensor adopts the conventional angular displacement potentiometer as a detection element, and can meet application requirements in occasions with low requirements. However, in the application fields with high requirements, the oil level sensor needs to have two functions, in addition to the basic oil level calibration function, an accurate on-off control function is also needed to be provided for realizing accurate judgment of the oil level position and giving feedback to realize accurate closed-loop control, the function not only can realize accurate on-off control, but also is a double-insurance measure, even if the function of detecting the rotation angle of the rotating shaft fails, the closed-loop control function can be realized, and the oil level position can be corrected through comparison of time and slippage. After the switch control function is provided, the control unit can also know the oil level position in advance, the oil level can be prevented from being over-high or too low after correction processing is carried out timely, and the oil level system plays a role in protecting elements, so that the whole oil level system can keep relatively safe, stable and good position and position feedback at any time. The conventional angular displacement potentiometer cannot meet the application requirement.
SUMMERY OF THE UTILITY MODEL
The present invention has been made to solve the above problems, and an object of the present invention is to provide a double circular ring-shaped body type angular displacement potentiometer for an oil level sensor, which can detect a rotation angle of a rotating shaft and can perform on-off control.
The utility model realizes the purpose through the following technical scheme:
a double-ring-shaped body type angular displacement potentiometer for an oil level sensor comprises a shell, a rotating shaft, an insulating sleeve, a collecting ring and an electric brush, wherein the insulating sleeve, the collecting ring and the electric brush are arranged in the shell, the rotating shaft penetrates through a through hole in the shell and is connected with the shell through a bearing, the double-ring-shaped body type angular displacement potentiometer further comprises a first ring-shaped body and a second ring-shaped body which are arranged in the shell, the insulating sleeve comprises a first insulating sleeve and a second insulating sleeve, the collecting ring comprises a first collecting ring and a second collecting ring, the electric brush comprises a first electric brush, a second electric brush, a third electric brush and a fourth electric brush, the first insulating sleeve and the second insulating sleeve are respectively sleeved on the rotating shaft and are sequentially arranged in the axial direction of the rotating shaft, the first collecting ring is sleeved on the first insulating sleeve, and the first insulating sleeve penetrates through hole of the first ring-shaped body, the surface of one side of the first circular ring-shaped body is provided with a circular arc-shaped resistance working belt, two ends of the resistance working belt are respectively connected with two power supply electrodes, the first electric brush is installed on the first circular ring-shaped body and is contacted with the working belt of the first collecting ring, the second electric brush is installed on the first collecting ring and is electrically conducted with the working belt of the first collecting ring, the second electric brush is contacted with the resistance working belt on the first circular ring-shaped body, and the two power supply electrodes and the first electric brush are respectively connected with different wires in a first lead; the second collecting ring is sleeved on the second insulating sleeve, the second insulating sleeve penetrates through the through hole of the second ring-shaped body, a circular arc-shaped conductor working belt is arranged on the surface of one side of the second ring-shaped body and is connected with a control electrode, the third electric brush is installed on the second ring-shaped body and is in contact with the working belt of the second collecting ring, the fourth electric brush is installed on the second collecting ring and is in electrical conduction with the working belt of the second collecting ring, the fourth electric brush is in contact with the conductor working belt on the second ring-shaped body, and the control electrode and the third electric brush are respectively connected with different wires in the second lead.
Specifically, the resistance working tape is a resistance paste tape, and the conductor working tape is a copper tape with gold-plated surface.
Preferably, in order to achieve a better correspondence and adapt to different application scenarios, central angles of the resistive operating strip and the conductor operating strip are the same or different, and axial projections of the resistive operating strip and the conductor operating strip on the rotating shaft are at least partially overlapped.
Preferably, the housing includes an end housing, a middle housing, and a cover plate coupled to each other for ease of manufacturing and assembly.
The utility model has the beneficial effects that:
according to the oil level sensor, the rotating angle detection structure and the switch control structure are arranged on one potentiometer and are driven by the same rotating shaft, so that the rotating angle detection function and the accurate switch control function can be realized by using one angular displacement potentiometer, accurate closed-loop control is realized, the closed-loop control function can be realized even if the function of detecting the rotating angle of the rotating shaft fails, the oil level position can be corrected by comparing time with slippage, and the use requirement of the high-requirement application scene oil level sensor is met; the whole potentiometer has high detection and control precision, good reliability, small volume, light weight and convenient installation and application.
Drawings
FIG. 1 is a front cross-sectional view of a dual annular ring body angular displacement potentiometer for a fuel level sensor in accordance with the present invention;
FIG. 2 is a right side view of a first annular body of the dual annular body angular displacement potentiometer according to the present invention for use in a fuel level sensor;
fig. 3 is a right side view of a second annular body of the dual annular body angular displacement potentiometer according to the present invention for use in a fuel level sensor.
Detailed Description
The utility model will be further described with reference to the accompanying drawings in which:
as shown in fig. 1-3, the double-ring-shaped body type angular displacement potentiometer for an oil level sensor according to the present invention includes a housing, a rotating shaft 1, and an insulating sleeve, a slip ring, brushes, a first ring-shaped body 6 and a second ring-shaped body 12 disposed in the housing, wherein the rotating shaft 1 passes through a through hole on the housing and is connected to the housing through a bearing 3, the insulating sleeve includes a first insulating sleeve 5 and a second insulating sleeve 13, the slip ring includes a first slip ring 11 and a second slip ring 15, the brushes include a first brush 9, a second brush 8, a third brush 14 and a fourth brush 18, the first insulating sleeve 5 and the second insulating sleeve 13 are respectively sleeved on the rotating shaft 1 and are sequentially arranged in an axial direction of the rotating shaft 1, the first slip ring 11 is sleeved on the first insulating sleeve 5, the first insulating sleeve 5 passes through the through hole of the first ring-shaped body 6, a circular arc-shaped resistance working belt 20 is arranged on the surface of one side of the first circular ring-shaped body 6, two ends of the resistance working belt 20 are respectively connected with two power supply electrodes 19, a first electric brush 9 is installed on the first circular ring-shaped body 6 and is contacted with a working belt of the first collecting ring 11, a second electric brush 8 is installed on the first collecting ring 11 and is electrically conducted with the working belt of the first collecting ring 11, the second electric brush 8 is contacted with the resistance working belt 20 on the first circular ring-shaped body 6, the two power supply electrodes 19 and the first electric brush 9 are respectively connected with different wires in the first lead 4, and the outer end of the first lead 4 penetrates through a through hole in the shell and then is connected with an external controller; the second collecting ring 15 is sleeved on the second insulating sleeve 13, the second insulating sleeve 13 penetrates through a through hole of the second circular ring-shaped body 12, a circular arc-shaped conductor working belt 22 is arranged on the surface of one side of the second circular ring-shaped body 12, the conductor working belt 22 is connected with a control electrode 21, the third brush 14 is installed on the second circular ring-shaped body 12 and is in contact with the working belt of the second collecting ring 15, the fourth brush 18 is installed on the second collecting ring 15 and is in electrical conduction with the working belt of the second collecting ring 15, the fourth brush 18 is in contact with the conductor working belt 22 on the second circular ring-shaped body 12, the control electrode 21 and the third brush 14 are respectively connected with different leads in the second lead 17, and the outer end of the second lead 17 penetrates through the through hole in the shell and then is connected with an external controller. Preferably, the resistive working tape 20 is a resistive paste tape, and the conductive working tape 22 is a copper tape with gold plated surface; the central angles of the resistance working band 20 and the conductor working band 22 are the same or different, and the axial projections of the resistance working band 20 and the conductor working band 22 on the rotating shaft 1 are at least partially overlapped; the shell comprises an end shell 2, a middle shell 10 and a cover plate 16 which are connected with each other, and the end shell 2 is connected with the middle shell 10 through a hoop 7.
As shown in fig. 1-3, in use, the rotating shaft 1 is connected with a float (not shown) in an oil tank (not shown) through a swing arm assembly (not shown), when the float moves up and down, the rotating shaft 1 is driven to rotate forward or backward, so that the first insulating sleeve 5, the second insulating sleeve 13, the first collecting ring 11, the second collecting ring 15, the second brush 8 and the fourth brush 18 are driven to rotate synchronously, the contact position of the second brush 8 and the resistance operating band 20 changes, the second brush 8 outputs a changed electric signal and transmits the changed electric signal to an external controller (not shown) through the operating band of the first collecting ring 11, the first brush 9 and the first lead 4 in sequence, so as to detect the rotating angle of the rotating shaft 1, namely, the up-down moving distance of the float, and detect the oil level in the oil tank; when the fourth brush 18 is in a contact state with the conductor operating band 22, a conducting wire connected with the third brush 14 and a conducting wire connected with the control electrode 21 are in a connected state, the corresponding switch control state is on, when the fourth brush 18 is in a non-contact state with the conductor operating band 22, the conducting wire connected with the third brush 14 and the conducting wire connected with the control electrode 21 are in a disconnected state, and the corresponding switch control state is off, so that the switch control function is realized.
With reference to fig. 1 and fig. 2, the following description will be made by taking an example of a specific application scenario as an example, where the central angles of the resistive operating strip 20 and the conductive operating strip 22 are different:
example (b):
the arc central angle of the resistor working band 20 is 100 degrees, the arc central angle of the conductor working band 22 is 60 degrees, when the fourth electric brush 18 rotates to the position of 20 degrees, the fourth electric brush 18 is communicated with the control electrode 21, and the control switch is in an on state; when the fourth brush 18 is rotated from the 20 ° to the 80 ° position, its control switch is always in the "on" state; when the fourth brush 18 rotates to a position exceeding 80 °, the fourth brush 18 is disconnected from the control electrode 21, and the control switch thereof is in an off state, which can be used for on-off control of oil-feeding when the oil level is at a high alert level and a low alert level; in the whole process, the electric signal output by the second electric brush 8 continuously changes corresponding to the rotation angle of the rotating shaft, the upward (or downward) moving distance of the floater and the continuous change of the oil level in the oil tank, so that a user can know the oil level condition in real time, and whether the two signals are completely consistent at corresponding positions or not can be verified and corrected, and the detection accuracy is further improved.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the technical solutions of the present invention, so long as the technical solutions can be realized on the basis of the above embodiments without creative efforts, which should be considered to fall within the protection scope of the patent of the present invention.
Claims (4)
1. The utility model provides a two ring shape body formula angular displacement potentiometers for oil level sensor, includes shell, pivot and arranges in insulation support, collecting ring, brush in the shell, the pivot passes through the through-hole on the shell and through the bearing with the shell is connected its characterized in that: the double-ring-shaped body type angular displacement potentiometer further comprises a first ring-shaped body and a second ring-shaped body which are arranged in the shell, the insulating sleeves comprise a first insulating sleeve and a second insulating sleeve, the collecting rings comprise a first collecting ring and a second collecting ring, the electric brushes comprise a first electric brush, a second electric brush, a third electric brush and a fourth electric brush, the first insulating sleeve and the second insulating sleeve are respectively sleeved on the rotating shaft and are sequentially arranged in the axial direction of the rotating shaft, the first collecting ring is sleeved on the first insulating sleeve, the first insulating sleeve penetrates through holes of the first ring-shaped body, a circular arc-shaped resistor working belt is arranged on one side surface of the first ring-shaped body, two ends of the resistor working belt are respectively connected with two power supply electrodes, the first electric brush is installed on the first ring-shaped body and is in contact with the working belt of the first collecting ring, the second electric brush is arranged on the first collecting ring and is electrically conducted with the working belt of the first collecting ring, the second electric brush is contacted with the resistance working belt on the first circular body, and the two power supply electrodes and the first electric brush are respectively connected with different leads in a first lead; the second collecting ring is sleeved on the second insulating sleeve, the second insulating sleeve penetrates through the through hole of the second ring-shaped body, a circular arc-shaped conductor working belt is arranged on the surface of one side of the second ring-shaped body and is connected with a control electrode, the third electric brush is installed on the second ring-shaped body and is in contact with the working belt of the second collecting ring, the fourth electric brush is installed on the second collecting ring and is in electrical conduction with the working belt of the second collecting ring, the fourth electric brush is in contact with the conductor working belt on the second ring-shaped body, and the control electrode and the third electric brush are respectively connected with different wires in the second lead.
2. The dual annular ring body angular displacement potentiometer for a fuel level sensor according to claim 1, wherein: the resistance working belt is a resistance slurry belt, and the conductor working belt is a copper belt with gold-plated surface.
3. A dual annular ring shaped body angular displacement potentiometer for a fuel level sensor according to claim 1 or 2, wherein: the central angles of the resistance working band and the conductor working band are the same or different, and the axial projections of the resistance working band and the conductor working band on the rotating shaft are at least partially overlapped.
4. A dual annular ring shaped body angular displacement potentiometer for a fuel level sensor according to claim 1 or 2, wherein: the housing includes an end housing, a middle housing, and a cover plate that are connected to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121206846.2U CN215573244U (en) | 2021-06-01 | 2021-06-01 | Double-ring-shaped body type angular displacement potentiometer for oil level sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121206846.2U CN215573244U (en) | 2021-06-01 | 2021-06-01 | Double-ring-shaped body type angular displacement potentiometer for oil level sensor |
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| CN215573244U true CN215573244U (en) | 2022-01-18 |
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| CN202121206846.2U Active CN215573244U (en) | 2021-06-01 | 2021-06-01 | Double-ring-shaped body type angular displacement potentiometer for oil level sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115854857A (en) * | 2022-11-03 | 2023-03-28 | 北京精密机电控制设备研究所 | Angular displacement sensor based on injection molding resistance ring |
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2021
- 2021-06-01 CN CN202121206846.2U patent/CN215573244U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115854857A (en) * | 2022-11-03 | 2023-03-28 | 北京精密机电控制设备研究所 | Angular displacement sensor based on injection molding resistance ring |
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