CN207631183U - A kind of bumper with pressure detecting function - Google Patents
A kind of bumper with pressure detecting function Download PDFInfo
- Publication number
- CN207631183U CN207631183U CN201721415647.6U CN201721415647U CN207631183U CN 207631183 U CN207631183 U CN 207631183U CN 201721415647 U CN201721415647 U CN 201721415647U CN 207631183 U CN207631183 U CN 207631183U
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- resistance
- integrated circuit
- bumper
- operational amplifier
- pressure
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Abstract
The utility model discloses a kind of bumper with pressure detecting function, including bumper body, the both ends of bumper body are equipped with fixed mechanism, and the top of bumper body is equipped with pressure monitoring mechanism；Fixed mechanism includes outline border, and the side of outline border is equipped with opening, and the both sides of the opening are respectively equipped with fixture block, and spring is equipped between the fixture block and the inner wall of outline border；The bumper body is internally provided with pressure detecting module, and the pressure monitoring mechanism is electrically connected with pressure detecting module；The inside of the bumper body is additionally provided with loud speaker, and the flexible installation of bumper can be realized by fixed mechanism；It is realized by pressure detection circuit and the pressure that bumper is subject to is measured in real time, improve the reliability of bumper, the utility model is designed reasonably is suitble to promote the use of.
Description
Technical field
The utility model is related to auto parts and components fields, and in particular to a kind of car insurance with pressure detecting function
Thick stick.
Background technology
In present bumper, all do not have pressure detecting function, when user leans against on bumper,
Bumper can be caused to damage because there is no pressure detecting function.
Utility model content
The utility model is above-mentioned in order to overcome the shortcomings of, provides a kind of bumper with pressure detecting function, packet
Bumper body is included, the both ends of bumper body are equipped with fixed mechanism, and the top of bumper body is equipped with pressure monitoring mechanism；
Fixed mechanism includes outline border, and the side of outline border is equipped with opening, and the both sides of the opening are respectively equipped with fixture block, the card
Spring is equipped between block and the inner wall of outline border；
The bumper body is internally provided with pressure detecting module, the pressure monitoring mechanism and pressure detecting module electricity
Connection；
The inside of the bumper body is additionally provided with loud speaker.
Preferably, pressure detecting module includes pressure detection circuit, the pressure detection circuit includes first resistor,
Two resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the first electricity
Appearance, the second capacitance, third capacitance, the 4th capacitance, the first adjustable resistance, the second adjustable resistance, zener diode, operation amplifier
Device, integrated circuit and pressure sensor, the model LM331 of the integrated circuit, the inverting input of the operational amplifier
The external 5V DC voltage power supplies of series circuit being made up of second resistance and first resistor, the reverse phase of the operational amplifier are defeated
Enter end to be grounded by pressure sensor, the series circuit that the zener diode is formed with second resistance and pressure sensor is simultaneously
Connection, the plus earth of the zener diode, the adjustable end of the in-phase input end of the operational amplifier and the first adjustable resistance
The series circuit of connection, the 3rd resistor and the first adjustable resistance composition is connected with what second resistance and pressure sensor formed
Circuit in parallel, the in-phase input end of the operational amplifier pass through series circuit and the operation of the 4th resistance and the first capacitance composition
The output end of amplifier connects, the output end that the inverting input of the operational amplifier passes through the 5th resistance and operational amplifier
The output end of connection, the operational amplifier is grounded by the series circuit that the 6th resistance and the second capacitance form, the operation
The output end of amplifier is connected by the comparison input terminal of the 6th resistance and integrated circuit, and the power end of the integrated circuit is external
The timing circuit end of 5V DC voltage power supplies, the integrated circuit passes through the external 5V DC voltage power supplies of the 7th resistance, the collection
At the timing circuit end of circuit by third capacity earth, the current output terminal of the integrated circuit is connected with threshold value end, described
For the current output terminal of integrated circuit respectively by the 4th capacitance and the 8th resistance eutral grounding, the frequency output terminal of the integrated circuit is logical
Cross the external 5V DC voltage power supplies of the 9th resistance, the ground terminal ground connection of the integrated circuit, the reference current of the integrated circuit
End is grounded by the second adjustable resistance.
The utility model has the beneficial effects that：The flexible installation of bumper can be realized by fixed mechanism；Pass through pressure
Detection circuit, which realizes, is measured in real time the pressure that bumper is subject to, and improves the reliability of bumper.
Description of the drawings
The utility model will illustrate by example and with reference to the appended drawing, wherein：
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the fixed mechanism of the utility model.
Fig. 3 is the circuit diagram of the pressure detection circuit of the utility model.
Specific implementation mode
The utility model is described in further detail presently in connection with attached drawing.These attached drawings are simplified schematic diagram,
Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows composition related with the utility model.
As shown in Figs. 1-3, a kind of bumper with pressure detecting function, including bumper body 2, bumper sheet
The both ends of body 2 are equipped with fixed mechanism 3, and the top of bumper body 2 is equipped with pressure monitoring mechanism 1；
Fixed mechanism 3 includes outline border 4, and the side of outline border 4 is equipped with opening, and the both sides of the opening are respectively equipped with fixture block 6, institute
It states and is equipped with spring 5 between fixture block 6 and the inner wall of outline border 4；
The bumper body 2 is internally provided with pressure detecting module, the pressure monitoring mechanism 1 and pressure detecting module
Electrical connection；
The inside of the bumper body 2 is additionally provided with loud speaker.
Preferably, pressure detecting module includes pressure detection circuit, the pressure detection circuit include first resistor R1,
Second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8,
9th resistance R9, the first capacitance C1, the second capacitance C2, third capacitance C3, the 4th capacitance C4, the first adjustable resistance RP1, second can
Resistance RP2, zener diode D1, operational amplifier U1, integrated circuit U2 and pressure sensor BT are adjusted, the integrated circuit U2's
The series connection that the inverting input of model LM331, the operational amplifier U1 pass through second resistance R2 and first resistor R1 compositions
The external 5V DC voltage power supplies of circuit, the inverting input of the operational amplifier U1 is grounded by pressure sensor BT, described
Zener diode D1 is in parallel with the series circuit of second resistance R2 and pressure sensor BT compositions, the sun of the zener diode D1
Pole is grounded, and the in-phase input end of the operational amplifier U1 is connect with the adjustable end of the first adjustable resistance RP1, the 3rd resistor
The series circuit that the series circuit of R3 and the first adjustable resistance RP1 compositions is formed with second resistance R2 and pressure sensor BT is simultaneously
Connection, the in-phase input end of the operational amplifier U1 pass through series circuit and operation that the 4th resistance R4 and the first capacitance C1 are formed
The output end of amplifier U1 connects, and the inverting input of the operational amplifier U1 passes through the 5th resistance R5 and operational amplifier U1
Output end connection, the output end of the operational amplifier U1 passes through the series circuit of the 6th resistance R6 and the second capacitance C2 compositions
Ground connection, the output end of the operational amplifier U1 is connect by the 6th resistance R6 with the comparison input terminal of integrated circuit U2, described
The external 5V DC voltage power supplies of power end of integrated circuit U2, the timing circuit end of the integrated circuit U2 passes through the 7th resistance R7
The timing circuit end of external 5V DC voltage power supplies, the integrated circuit U2 is grounded by third capacitance C3, the integrated circuit
The current output terminal of U2 is connected with threshold value end, and the current output terminal of the integrated circuit U2 passes through the 4th capacitance C4 and the 8th respectively
Resistance R8 ground connection, the frequency output terminal of the integrated circuit U2 pass through the external 5V DC voltage power supplies of the 9th resistance R9, the collection
It is grounded at the ground terminal of circuit U 2, the reference current end of the integrated circuit U2 passes through the second adjustable resistance RP2 ground connection.
When needing fixed bumper, outline border is embedded into specified installation site, two fixture blocks will be with installation
Fixing piece matched, while fixture block can be fixed by spring by limit, improve the flexibility of bumper installation；
The pressure that bumper is subject to can be measured in real time by pressure detection circuit, when reaching critical value, Jiu Huitong
It crosses loud speaker and carries out alarm.
In pressure detection circuit, pressure sensor BT uses constant pressure, low current power supply, and operating current is 200 μ A,
The self-heating amount for reducing pressure sensor BT improves the measurement essence of pressure detection circuit to reduce external disturbance
True property.Zener diode D1 is voltage-stabiliser tube, and first resistor R1 and second resistance R2 are current-limiting resistance.Utilize pressure sensor BT
Environmental pressure is converted into the analog voltage signal of millivolt level, send to operational amplifier U1 and zooms into the voltage signal of 0~3V, then
Voltage/frequency (U/f) is carried out by integrated circuit U2 to convert, and obtains the frequency signal of 0~14kHz.First adjustable resistance RP1 is
Gain-adjusted potentiometer, the second adjustable resistance RP2 are frequency calibration potentiometer.It uses bikini calibration method, only needs -40
DEG C, the output frequency value at 0 DEG C and+40 DEG C be calibrated to 0Hz, 4kHz and 14kHz successively.Sensitivity after calibration is
40Hz/ DEG C.The model LM331 of integrated circuit U2, belongs to accurate voltage/frequency converter, it is in 1Hz~40kHz frequency models
Interior nonlinearity reachable ± 0.03% is enclosed, to improve the accuracy of pressure measurement circuitry measurement.7th resistance R7 and
Three capacitance C3 are respectively timing resistor, timing capacitor.
Above-mentioned foundation the utility model is enlightenment, and through the above description, relevant staff completely can be not
In the range of deviateing this item utility model technological thought, various changes and amendments are carried out.This item utility model it is technical
Range is not limited to the contents of the specification, it is necessary to determine its technical scope according to right.
Claims (2)
1. a kind of bumper with pressure detecting function, it is characterised in that：Including bumper body, bumper body
Both ends are equipped with fixed mechanism, and the top of bumper body is equipped with pressure monitoring mechanism；
Fixed mechanism includes outline border, and the side of outline border is equipped with opening, and the both sides of the opening are respectively equipped with fixture block, the fixture block with
Spring is equipped between the inner wall of outline border；
The bumper body is internally provided with pressure detecting module, and the pressure monitoring mechanism is electrically connected with pressure detecting module
It connects；
The inside of the bumper body is additionally provided with loud speaker.
2. a kind of bumper with pressure detecting function according to claim 1, it is characterised in that：Pressure detecting
Module includes pressure detection circuit, the pressure detection circuit include first resistor, second resistance, 3rd resistor, the 4th resistance,
5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the first capacitance, the second capacitance, third capacitance, the 4th
Capacitance, the first adjustable resistance, the second adjustable resistance, zener diode, operational amplifier, integrated circuit and pressure sensor, institute
The model LM331 of integrated circuit is stated, the inverting input of the operational amplifier is made up of second resistance and first resistor
The external 5V DC voltage power supplies of series circuit, the inverting input of the operational amplifier is grounded by pressure sensor, institute
It is in parallel with the series circuit that second resistance and pressure sensor form to state zener diode, and the anode of the zener diode connects
Ground, the in-phase input end of the operational amplifier are connect with the adjustable end of the first adjustable resistance, and the 3rd resistor and first can
Adjust the series circuit of resistance composition in parallel with the series circuit that second resistance and pressure sensor form, the operational amplifier
The output end for the series circuit and operational amplifier that in-phase input end is made up of the 4th resistance and the first capacitance connects, the fortune
The inverting input for calculating amplifier is connected by the output end of the 5th resistance and operational amplifier, the output of the operational amplifier
The series circuit ground connection that end is made up of the 6th resistance and the second capacitance, the output end of the operational amplifier pass through the 6th resistance
It is connect with the comparison input terminal of integrated circuit, the external 5V DC voltage power supplies of power end of the integrated circuit, the integrated electricity
The timing circuit end on road passes through third by the external 5V DC voltage power supplies of the 7th resistance, the timing circuit end of the integrated circuit
The current output terminal of capacity earth, the integrated circuit is connected with threshold value end, and the current output terminal of the integrated circuit leads to respectively
The 4th capacitance and the 8th resistance eutral grounding are crossed, the frequency output terminal of the integrated circuit passes through the external 5V direct currents piezoelectricity of the 9th resistance
Source, the ground terminal ground connection of the integrated circuit, the reference current end of the integrated circuit is grounded by the second adjustable resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721415647.6U CN207631183U (en) | 2017-10-30 | 2017-10-30 | A kind of bumper with pressure detecting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721415647.6U CN207631183U (en) | 2017-10-30 | 2017-10-30 | A kind of bumper with pressure detecting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207631183U true CN207631183U (en) | 2018-07-20 |
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ID=62858829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721415647.6U Active CN207631183U (en) | 2017-10-30 | 2017-10-30 | A kind of bumper with pressure detecting function |
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| CN (1) | CN207631183U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255033A (en) * | 2020-02-25 | 2020-06-09 | 中国水利水电科学研究院 | Intelligent flushing squatting pan |
-
2017
- 2017-10-30 CN CN201721415647.6U patent/CN207631183U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255033A (en) * | 2020-02-25 | 2020-06-09 | 中国水利水电科学研究院 | Intelligent flushing squatting pan |
| CN111255033B (en) * | 2020-02-25 | 2021-04-02 | 中国水利水电科学研究院 | Intelligent flushing squatting pan |
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