CN207114755U - Ultrasonic ranging suitable for wet environment is popped one's head in - Google Patents
Ultrasonic ranging suitable for wet environment is popped one's head in Download PDFInfo
- Publication number
- CN207114755U CN207114755U CN201720608490.2U CN201720608490U CN207114755U CN 207114755 U CN207114755 U CN 207114755U CN 201720608490 U CN201720608490 U CN 201720608490U CN 207114755 U CN207114755 U CN 207114755U
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- China
- Prior art keywords
- cylinder
- desiccant wheel
- dehumidification
- air
- dehumidification cylinder
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- 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.)
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Abstract
The utility model discloses the probe of the ultrasonic ranging suitable for wet environment, including metal cylinder, the end set of the metal cylinder has piezoelectric chip, a dehumidification cylinder is also associated with the end of metal cylinder, desiccant wheel is provided with dehumidification cylinder, an electric rotation shaft is provided with the desiccant wheel, the dehumidification cylinder, the axis of electric rotation shaft overlaps with the center line of metal cylinder, air exhauster is additionally provided with dehumidification cylinder, heat absorbing sheet, the heat absorbing sheet is arranged between desiccant wheel and piezoelectric chip and is close to the end face of desiccant wheel, the air exhauster is arranged between desiccant wheel and the dehumidification cylinder port of export, and the air-supply face of air exhauster deviates from desiccant wheel.The utility model is solved in wet environment, and the frequency of oscillation of the piezoelectric chip in piezoelectric ultrasonic is vulnerable to influence, the problem of influenceing its range accuracy.
Description
Technical field
It the utility model is related to a kind of ultrasonic probe, and in particular to the ultrasonic ranging suitable for wet environment is popped one's head in.
Background technology
At present, ultrasonic sensor is widely used as distance measuring sensor, frequently as one kind auxiliary vision means and other visions
Instrument (such as ccd image sensor) is used cooperatively, and can effectively improve the visual performance of machine.
Supersonic generator can be divided into two major classes：One kind is to be used to electrically produce ultrasonic wave；One kind is to use machinery side
Formula produces ultrasonic wave.Electric information includes piezo-electric type, magnetostriction type and power type etc.；It is mechanical including jar (unit of capacitance) system flute, the liquid whistle and
Air-flow siren etc..The frequency of ultrasonic waves caused by them, power and acoustic wave character are different, thus purposes is not yet
Together, currently used is piezoelectric-type ultrasonic wave producer.
Piezoelectric-type ultrasonic wave producer is actually that the sensor has two pressures come work using the resonance of piezo-electric crystal
Electric chip and a sounding board, when its two poles of the earth applying pulse signal, and when frequency is equal to the natural mode shape of piezoelectric chip, pressure
Electric chip will resonate, and drive sounding board vibrations to produce ultrasonic wave.
But in wet environment, it is easy to accumulate moisture inside piezoelectric-type ultrasonic wave producer, causes piezoelectric chip to shake
Swing frequency to be affected, so as to influence the precision of its detection.
Utility model content
The purpose of this utility model is to provide the ultrasonic ranging probe suitable for wet environment, solved in wet environment
In, the frequency of oscillation of the piezoelectric chip in piezoelectric ultrasonic is vulnerable to influence, the problem of influenceing its range accuracy.
The utility model is achieved through the following technical solutions：
Ultrasonic ranging suitable for wet environment is popped one's head in, including metal cylinder, the end set of the metal cylinder have piezoelectricity
Chip, a dehumidification cylinder is also associated with the end of metal cylinder, is provided with desiccant wheel in dehumidification cylinder, on the desiccant wheel
An electric rotation shaft is provided with, the dehumidification cylinder, the axis of electric rotation shaft overlap with the center line of metal cylinder, in dehumidification cylinder also
Air exhauster, heat absorbing sheet are provided with, the heat absorbing sheet is arranged between desiccant wheel and piezoelectric chip and is close to the end of desiccant wheel
Face, the air exhauster are arranged between desiccant wheel and the dehumidification cylinder port of export, and the air-supply face of air exhauster deviates from desiccant wheel.
Further, in the prior art, diaphragm is additionally provided with outside piezoelectric chip, for sealing piezoelectric chip and metal
Gap between cylinder, in wet environment, diaphragm surface is easily absorbing vapor, with increasing for vapor, vapor
Not only readily permeable diaphragm causes piezoelectric chip to be oxidized, and can more be attached on piezoelectric chip or diaphragm so that piezo crystals
The weight increase of piece.Because piezoelectric chip is oxidized and its weight adds so that the property of piezoelectric chip changes, stiffness factor
Change, ultimately results in piezoelectric chip frequency of oscillation and is affected, so as to influence the precision of its detection.To solve problem above, this
Utility model is mounted with a dehumidification cylinder in the end of metal cylinder, and desiccant wheel, heat absorbing sheet and air exhauster are installed in dehumidification cylinder,
Dehumidification cylinder and metal cylinder form a cavity, and desiccant wheel drives the air flow in dehumidification cylinder in rotation process, in air
Runner absorption is dehumidified with the part vapor in cavity, dehumidification cylinder out of is taken malaria by air exhauster therewith, to protect
The drying in cavity is held, avoids water vapor adsorption on piezoelectric chip and diaphragm.Heat absorbing sheet absorb air exhauster nearby air and
Heat in cavity, reduce the evaporation of vapor of the absorption on desiccant wheel, effectively reduce vapor is back to sky
Intracavitary, while also by the water vapor adsorption in cavity in its surface, further dry cavity.Electric rotating in desiccant wheel
Axle includes rotary shaft, motor, and structure is similar with fan, and be adds moisture absorption layer more.
It is provided with moisture absorption layer in the desiccant wheel, moisture absorption paper folding is overlapped forms by several for the moisture absorption layer, institute
It is 0.8~1.5mm to state the spacing between adjacent moisture absorption paper folding.Further, it is several moisture absorption paper foldings are overlapping, and keep adjacent
It is 0.8~1.5mm moisture absorption passages that spacing is left between moisture absorption paper folding, this ensure that the air permeability of moisture absorption layer, increases moisture absorption
Paper folding and the contact area of water vapor in air, be advantageous to improve the wettability of desiccant wheel, strengthen moisture sorption effect.
Several through holes are provided with desiccant wheel, the air-vent with the quantity such as through hole is provided with heat absorbing sheet, it is described
Stomata overlaps with the center line of through hole, and air-vent forms vent passages with through hole, and the vent passages cause the interior of dehumidification cylinder
Portion's cavity communicates with the port of export of dehumidification cylinder.Further, vent passages cause the internal cavities of dehumidification cylinder and going out for dehumidification cylinder
Mouth end communicates, this ensure that the air flow in dehumidification cylinder so that whole dehumidification system has an effective air circulation, together
When it also avoid influenceing ultrasonic probe transmitting or the problem of reception signal.
The utility model compared with prior art, has the following advantages and advantages：
The ultrasonic ranging that the utility model is applied to wet environment is popped one's head in, and a dehumidifying is mounted with the end of metal cylinder
Cylinder, desiccant wheel, heat absorbing sheet and air exhauster are installed in dehumidification cylinder；Reduce in the cavity that dehumidification cylinder is formed with metal cylinder
Humidity, keep drying in cavity, solved with this in wet environment, the frequency of oscillation of the piezoelectric chip in piezoelectric ultrasonic
It is vulnerable to influence, the problem of influenceing its range accuracy.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the utility model embodiment, forms the one of the application
Part, the restriction to the utility model embodiment is not formed.In the accompanying drawings：
Fig. 1 is the utility model structure diagram；
Fig. 2 is the structural representation of the utility model desiccant wheel.
Mark and corresponding parts title in accompanying drawing：
1- metal cylinders, 2- piezoelectric chips, 3- dehumidification cylinders, 4- desiccant wheels, 5- electric rotation shafts, 6- air exhausters, 7- heat absorbing sheets,
8- through holes, 9- air-vents, 10- supports.
Embodiment
For the purpose of this utility model, technical scheme and advantage is more clearly understood, with reference to embodiment and accompanying drawing,
The utility model is described in further detail, and exemplary embodiment of the present utility model and its explanation are only used for explaining this
Utility model, it is not intended as to restriction of the present utility model.
Embodiment
As shown in Figure 1, 2, the utility model is applied to the ultrasonic ranging probe of wet environment, including metal cylinder 1, described
The end set of metal cylinder 1 has piezoelectric chip 2, and a dehumidification cylinder 3 is also associated with the end of metal cylinder 1, is set in dehumidification cylinder 3
Desiccant wheel 4 is equipped with, an electric rotation shaft 5, the dehumidification cylinder 3, the axis of electric rotation shaft 5 are provided with the desiccant wheel 4
Overlapped with the center line of metal cylinder 1, air exhauster 6, heat absorbing sheet 7 are additionally provided with dehumidification cylinder 3, the heat absorbing sheet 7, which is arranged on, to be removed
Between wet runner 4 and piezoelectric chip 2 and it is close to the end face of desiccant wheel 4, the air exhauster 6 is arranged on desiccant wheel 4 and dehumidifying
Between 3 ports of export of cylinder, and the air-supply face of air exhauster 6 deviates from desiccant wheel 4.Moisture absorption layer is provided with the desiccant wheel 4, it is described
Moisture absorption paper folding is overlapped forms by several for moisture absorption layer, and the spacing between the adjacent moisture absorption paper folding is 1mm.In desiccant wheel
Several through holes 8 are provided with 4, the air-vent 9 with the quantity such as through hole 8, the air-vent 9 and through hole 8 are provided with heat absorbing sheet 7
Center line overlaps, and air-vent 9 forms vent passages with through hole 8, and the vent passages cause the internal cavities of dehumidification cylinder 3 with removing
The port of export of wet cylinder 3 communicates.Two supports 10, support 10 and dehumidification cylinder 3 are also equipped with the electric rotation shaft 5 of desiccant wheel 4
Inwall fix.Solved by above structure in wet environment, the frequency of oscillation of the piezoelectric chip in piezoelectric ultrasonic is easy
It is affected, the problem of influenceing its range accuracy.
Above-described embodiment, the purpose of this utility model, technical scheme and beneficial effect are entered
One step describes in detail, should be understood that and the foregoing is only specific embodiment of the present utility model, is not used to limit
Determine the scope of protection of the utility model, it is all within the spirit and principles of the utility model, any modification for being made, equally replace
Change, improve, should be included within the scope of protection of the utility model.
Claims (2)
1. the ultrasonic ranging suitable for wet environment is popped one's head in, including metal cylinder (1), the end set of the metal cylinder (1) have
Piezoelectric chip (2) a, it is characterised in that dehumidification cylinder (3) is also associated with the end of metal cylinder (1), is set in dehumidification cylinder (3)
Desiccant wheel (4) is equipped with, an electric rotation shaft (5), the dehumidification cylinder (3), electric rotation shaft are provided with the desiccant wheel (4)
(5) axis is overlapped with the center line of metal cylinder (1), and air exhauster (6), heat absorbing sheet (7), institute are additionally provided with dehumidification cylinder (3)
State heat absorbing sheet (7) to be arranged between desiccant wheel (4) and piezoelectric chip (2) and be close to the end face of desiccant wheel (4), the exhausting
Machine (6) is arranged between desiccant wheel (4) and dehumidification cylinder (3) port of export, and the air-supply face of air exhauster (6) deviates from desiccant wheel
(4)；
It is provided with moisture absorption layer in the desiccant wheel (4), moisture absorption paper folding is overlapped forms by several for the moisture absorption layer, described
Spacing between adjacent moisture absorption paper folding is 0.8~1.5mm.
2. the ultrasonic ranging according to claim 1 suitable for wet environment is popped one's head in, it is characterised in that in desiccant wheel
(4) several through holes (8) are provided with, the air-vent (9) with the quantity such as through hole (8), the air-vent are provided with heat absorbing sheet (7)
(9) center line with through hole (8) overlaps, and air-vent (9) forms vent passages with through hole (8), and the vent passages to remove
The internal cavities of wet cylinder (3) communicate with the port of export of dehumidification cylinder (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720608490.2U CN207114755U (en) | 2017-05-27 | 2017-05-27 | Ultrasonic ranging suitable for wet environment is popped one's head in |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720608490.2U CN207114755U (en) | 2017-05-27 | 2017-05-27 | Ultrasonic ranging suitable for wet environment is popped one's head in |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207114755U true CN207114755U (en) | 2018-03-16 |
Family
ID=61594249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720608490.2U Expired - Fee Related CN207114755U (en) | 2017-05-27 | 2017-05-27 | Ultrasonic ranging suitable for wet environment is popped one's head in |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207114755U (en) |
-
2017
- 2017-05-27 CN CN201720608490.2U patent/CN207114755U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180316 Termination date: 20190527 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |