CN205066931U - High accuracy vibration sensor - Google Patents
High accuracy vibration sensor Download PDFInfo
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- CN205066931U CN205066931U CN201520864307.6U CN201520864307U CN205066931U CN 205066931 U CN205066931 U CN 205066931U CN 201520864307 U CN201520864307 U CN 201520864307U CN 205066931 U CN205066931 U CN 205066931U
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Abstract
The utility model relates to a high accuracy vibration sensor, including vibration sensing circuit board, vibration sensing circuit board is equipped with the vibration sensing circuit that comprises 16 singlechip memory chips and a plurality of condenser, resistance, and a plurality of condensers and resistance are equipped with power cord and serial bus with 16 singlechip memory chip electric connection, 16 position singlechip memory chips respectively. This sensor supports the vibration state of 3 directions to detect, supports 8g's vibrational acceleration, and the vibration detection error can reach 0.02g. Sensor sample data is simple, with singlechip cooperation alright with the stress and vibration amplitude detection of very simple and convenient completion to the measured device. Secondly, the vibration dynamics sympathetic vibration that this kind of sensor can accurate test vibrating object move the range, as long as set up equitable threshold value, too big frequency point of noise and device fatigue stress point are vibrated to just can be accurate avoid, have not only reduced the vibration noise, can also lengthen the life of device.
Description
Technical field
The utility model relates to sensor technical field, particularly a kind of main and matching used high precision vibration transducer of household appliances.
Background technology
Global economy, through the high speed development of decades, has driven the change rapidly of household electric appliances, and along with the appearance of intelligent appliance, household electric appliances enter a new stage especially.But affect the most basic problem also not optimization thoroughly or the solution that household electrical appliances use up to now, the vibrating noise problem in household electrical appliances use that Here it is, as the vibrating noise of external convertible frequency air conditioner, the operation noise etc. of domestic refrigerator.
In order to optimize household electrical appliances comfort in use, reduce vibrating noise to the impact of user, the way that household electric appliances are general is, by optimizing the physical construction of household electrical appliances inside and a large amount of impact using silencing cotton to reduce vibrating noise, or the running status of household electrical appliances is collected by great many of experiments, remove by software the frequency separation controlling household electrical appliances operation, avoid partial vibration point, reach the effect reducing and run noise.Wherein, internal mechanical structure or a large amount of object using silencing cotton really partly can reach noise reduction is optimized although adopt, but its cost can rise in a large number, and along with after household electrical appliances use a period of time, its vibrating noise Frequency point will inevitably drift about, and the effect of this noise reduction measure can be had a greatly reduced quality very soon.This kind of noise reduction measure go to avoid component frequency point by software and also there will be same problem, because when new vibration frequency is pointed out now, also can lose original effect.
Utility model content
The purpose of this utility model is the deficiency overcoming the existence of above-mentioned prior art, and provide a kind of simple and reasonable for structure, low cost, can the vibration state in Real-Time Monitoring oscillation point, accurately avoid by internal arithmetic the Frequency point that in vibration, vibrating noise is maximum and oscillation intensity is maximum, reach the object high precision vibration transducer of noise reduction.
The purpose of this utility model is achieved in that
A kind of high precision vibration transducer, involving vibrations sensing circuit plate, it is characterized in that, described vibrating sensing circuit board is provided with the vibrating sensing circuit be made up of 16 single-chip microcomputer memory chips and multiple capacitor, resistance, multiple capacitor and resistance are electrically connected with 16 single-chip microcomputer memory chips respectively, and 16 single-chip microcomputer memory chips are provided with power lead and universal serial bus.The core of this kind of vibrating sensing circuit board is 16 single-chip microcomputer memory chips, and in conjunction with other electron component, 3 axial vibrational states detect to make it support, the vibration acceleration of support ± 8g, vibration detection error can reach 0.02g.Sensor sample data is simple, coordinate with single-chip microcomputer just can be very easy complete the stress of measured device and Oscillation Amplitude detected.Secondly, this kind of sensor can the accurately vibration intensity of test vibration object and Oscillation Amplitude, as long as arrange rational threshold value, just can avoid the excessive frequency of vibrating noise and device fatigue stress point accurately, not only reduce vibrating noise, the serviceable life of device can also be extended.
The purpose of this utility model can also adopt following technical measures to solve:
As a scheme more specifically, described 16 single-chip microcomputer memory chips are the single-chip microcomputer of QFN16 model, this single-chip microcomputer is the core of sensor, its volume is the digital high precision chip of 3*3*1mm, therefore whole small product size may diminish to 10*10*6mm, can be arranged on measured device very easily, realize three direction of principal axis and detect.
The single-chip microcomputer of described QFN16 model is provided with VDDIO pin, BYP pin, a Reserved pin, SCL/SCLK pin, a GND pin, SDA pin, SA0 pin, a N/C pin, INT2 pin, SA1 pin, INT1 pin, the 2nd GND pin, the 2nd Reserved pin, VDD pin, the 2nd N/C pin and RST pin; Described VDDIO pin and VDD pin form described power lead, and VDDIO pin is connected with VDD pin, and described SCL/SCLK pin and SDA pin form described universal serial bus; A described Reserved pin, a GND pin, SA0 pin, SA1 pin, the 2nd GND pin, the 2nd Reserved pin and RST pin ground connection.
Described capacitor is provided with four, is respectively the first capacitor, the second capacitor, the 3rd capacitor and the 4th capacitor; Described resistance is provided with four, is respectively the first resistance, the second resistance, the 3rd resistance and the 4th resistance; Described VDDIO pin and BYP pin are respectively by the second capacitor and the 3rd capacitor grounding, and VDD pin Pin is by the first capacitor of being arranged in parallel and the 4th capacitor grounding; Described VDDIO pin is connected with SCL/SCLK pin, SDA pin, INT1 pin and INT2 pin with the 4th resistance respectively by the first resistance, the second resistance, the 3rd resistance.
As better scheme, described vibrating sensing circuit board outside is provided with casing assembly, and power lead and universal serial bus are drawn outside casing assembly, and casing assembly surface is provided with and is fixedly connected with position.After vibrating sensing circuit board adds casing assembly by outside, can be combined with electrical equipment easily.
Described high precision vibration transducer is the electric equipment vibration transducer with compressor, described in be fixedly connected with position be pipe clamp, pipe clamp is in the circular arc channel-shaped of band opening.Described electric equipment vibration transducer (PCBA), its volume only has 10*10*3mm.
Described casing assembly comprises drain pan, top cover and soft cover, and drain pan is provided with the inner chamber that top is opened wide, and vibrating sensing circuit board is arranged in inner chamber, and top cover is connected with drain pan top and by vibrating sensing circuit board package in inner chamber; Be provided with through wires hole between described drain pan and top cover, be softly set in through wires hole, the power lead of vibrating sensing circuit board and universal serial bus to be arranged in wire sleeve and to pass outside soft cover.
The beneficial effects of the utility model are as follows:
(1) the inner main chip of high precision vibration transducer of the present invention adopts 3 direction of principal axis high precision vibration detection chips, and in conjunction with high reliability Digital Circuit Control, can detection means solid space any direction vibrational state, accuracy of detection is high, the slight vibration of trickle 0.02g can be detected, maximum vibration overload can reach ± 8g, therefore can detect the vibrational state under any duty of household electrical appliances.
(2) sensor of the present invention is acceleration transducer, sample source data is the real time acceleration data of device space vibration, according to physics formula F=ma, force-bearing situation when acceleration and device vibrate is closely related, by the monitoring of the change to acceleration, sampling real time data is directly passed to control single chip computer, force-bearing situation when device vibrates can be judged very accurately, setting original threshold, thus the fatigue stress point of device can be avoided, extend the reliability of device, device vibration is simultaneously stressed excessively a little bigger, its vibrating noise general is equally very large, after avoiding this Frequency point, the vibrating noise of this Frequency point can be avoided accurately.
(3) high-precision sensor of the present invention can detect the Oscillation Amplitude of resonator device simultaneously, by carrying out Fast Fourier Transform (FFT) to sampled acceleration original value, then carrying out quadratic integral to each component of degree n n, just can obtain the vibration amplitude of resonator device.Its amplitude of the excessive Frequency point of vibrating noise also can be corresponding higher, and therefore the amplitude of monitoring devices just can avoid the noise of the excessive Frequency point of amplitude simultaneously.
(4) because acp chip (single-chip microcomputer of QFN16 model) volume only has 3*3*1mm, therefore sensor bulk of the present invention is smaller.
(5), after the high-precision sensor of the present invention's design uses in household electrical appliances, first obviously can improve the larger noise because household electrical appliances internal vibration brings, make household electrical appliances operate in less frequency noise point all the time, significantly improve the comfortableness of use.Secondly, because this sensor can the force-bearing situation of Real-Time Monitoring equipment under test in vibration, the fatigue stress of obvious improvement equipment is run, and the equipment that therefore avoids to a great extent damages due to fatigue stress, extends the life-span of equipment, decreases maintenance cost.Again, because this sensor cost is relatively cheap, reliability is high, therefore can save a part of cost for producer.
(6) vibration transducer in the market due to sampled data output excessive, calculating process is very complicated, therefore the computing that just can complete the vibrational state to resonator device must be coordinated with PC, cannot miniaturization, it is alternative that the high-precision vibration transducer that therefore the present invention completes also does not have other schemes to complete.
Accompanying drawing explanation
Fig. 1 is the utility model one embodiment decomposition chart.
Fig. 2 is the circuit theory diagrams of the utility model vibrating sensing circuit board.
Fig. 3 is the utility model perspective view.
Fig. 4 is the utility model drain pan plan structure schematic diagram.
Fig. 5 is the utility model plan structure schematic diagram.
Fig. 6 is the A-A sectional structure schematic diagram of Fig. 5.
Fig. 7 is the B-B sectional structure schematic diagram of Fig. 5.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
See shown in Fig. 1 to Fig. 7, a kind of high precision vibration transducer, involving vibrations sensing circuit plate 3, described vibrating sensing circuit board 3 is provided with the vibrating sensing circuit be made up of 16 single-chip microcomputer memory chips and multiple capacitor, resistance, multiple capacitor and resistance are electrically connected with 16 single-chip microcomputer memory chips respectively, and 16 single-chip microcomputer memory chips are provided with power lead and universal serial bus.
Described 16 single-chip microcomputer memory chips are the single-chip microcomputer of QFN16 model.The single-chip microcomputer of described QFN16 model is provided with VDDIO pin, BYP pin, a Reserved pin, SCL/SCLK pin, a GND pin, SDA pin, SA0 pin, a N/C pin, INT2 pin, SA1 pin, INT1 pin, the 2nd GND pin, the 2nd Reserved pin, VDD pin, the 2nd N/C pin and RST pin; Described VDDIO pin and VDD pin form described power lead, and VDDIO pin is connected with VDD pin, and described SCL/SCLK pin and SDA pin form described universal serial bus; A described Reserved pin, a GND pin, SA0 pin, SA1 pin, the 2nd GND pin, the 2nd Reserved pin and RST pin ground connection.Described capacitor is provided with four, is respectively the first capacitor C1, the second capacitor C2, the 3rd capacitor C3 and the 4th capacitor C4; Described resistance is provided with four, is respectively the first resistance R1, the second resistance R2, the 3rd resistance R3 and the 4th resistance R4; Described VDDIO pin and BYP pin are respectively by the second capacitor C2 and the 3rd capacitor C3 ground connection, and VDD pin Pin is by the first capacitor C1 of being arranged in parallel and the 4th capacitor C4 ground connection; Described VDDIO pin is connected with SCL/SCLK pin, SDA pin, INT1 pin and INT2 pin with the 4th resistance R4 respectively by the first resistance R1, the second resistance R2, the 3rd resistance R3.
Described vibrating sensing circuit board 3 outside is provided with casing assembly, and power lead and universal serial bus are drawn outside casing assembly, and casing assembly surface is provided with and is fixedly connected with position.
Described high precision vibration transducer is the electric equipment vibration transducer with compressor, described in be fixedly connected with position be pipe clamp 47, pipe clamp 47 is in the circular arc channel-shaped of band opening; Described pipe clamp 47 internal diameter can with what pipe fitting coordinate according to it and be designed to different size size.
Described casing assembly comprises drain pan 4, top cover 1 and soft cover 2, and drain pan 4 is provided with the inner chamber 41 that top is opened wide, and vibrating sensing circuit board 3 is arranged in inner chamber 41, and top cover 1 is connected with drain pan 4 top and is encapsulated in inner chamber 41 by vibrating sensing circuit board 3; Be provided with through wires hole 46 between described drain pan 4 and top cover 1, soft cover 2 is arranged in through wires hole 46, and the power lead of vibrating sensing circuit board 3 and universal serial bus to be arranged in wire sleeve 31 and to pass outside soft cover 2.
Inner chamber 41 wall of described drain pan 4 is provided with button bit 43, is provided with barb 11 and is fastened with button bit 43 bottom top cover 1.
Inner chamber 41 wall of described drain pan 4 is also provided with and supports convex tendon 42, and vibrating sensing circuit board 3 is carried on and supports on convex tendon 42.
Described through wires hole 46 is arranged on drain pan 4 side, and inside the corresponding through wires hole 46 of inner chamber 41 of described drain pan 4, side is provided with dividing plate 45, forms draw-in groove 44 between dividing plate 45 and through wires hole 46; Described soft cover 2 corresponding lead cover 31 is provided with center pit, and soft cover 2 one end is provided with rest pad 21 and clamp 22 successively, and rest pad 21 is undertaken on through wires hole 46, and clamp 22 is plugged in draw-in groove 44.
Claims (10)
1. a high precision vibration transducer, involving vibrations sensing circuit plate (3), it is characterized in that, described vibrating sensing circuit board (3) is provided with the vibrating sensing circuit be made up of 16 single-chip microcomputer memory chips and multiple capacitor, resistance, multiple capacitor and resistance are electrically connected with 16 single-chip microcomputer memory chips respectively, and 16 single-chip microcomputer memory chips are provided with power lead and universal serial bus.
2. high precision vibration transducer according to claim 1, it is characterized in that, described 16 single-chip microcomputer memory chips are the single-chip microcomputer of QFN16 model.
3. high precision vibration transducer according to claim 2, it is characterized in that, the single-chip microcomputer of described QFN16 model is provided with VDDIO pin, BYP pin, a Reserved pin, SCL/SCLK pin, a GND pin, SDA pin, SA0 pin, a N/C pin, INT2 pin, SA1 pin, INT1 pin, the 2nd GND pin, the 2nd Reserved pin, VDD pin, the 2nd N/C pin and RST pin;
Described VDDIO pin and VDD pin form described power lead, and VDDIO pin is connected with VDD pin, and described SCL/SCLK pin and SDA pin form described universal serial bus;
A described Reserved pin, a GND pin, SA0 pin, SA1 pin, the 2nd GND pin, the 2nd Reserved pin and RST pin ground connection.
4. high precision vibration transducer according to claim 3, it is characterized in that, described capacitor is provided with four, is respectively the first capacitor, the second capacitor, the 3rd capacitor and the 4th capacitor; Described resistance is provided with four, is respectively the first resistance, the second resistance, the 3rd resistance and the 4th resistance;
Described VDDIO pin and BYP pin are respectively by the second capacitor and the 3rd capacitor grounding, and VDD pin Pin is by the first capacitor of being arranged in parallel and the 4th capacitor grounding;
Described VDDIO pin is connected with SCL/SCLK pin, SDA pin, INT1 pin and INT2 pin with the 4th resistance respectively by the first resistance, the second resistance, the 3rd resistance.
5. high precision vibration transducer according to any one of Claims 1-4, is characterized in that, described vibrating sensing circuit board (3) outside is provided with casing assembly, and power lead and universal serial bus are drawn outside casing assembly, and casing assembly surface is provided with and is fixedly connected with position.
6. high precision vibration transducer according to claim 5, it is characterized in that, described high precision vibration transducer is the electric equipment vibration transducer with compressor, described in be fixedly connected with position be pipe clamp (47), pipe clamp (47) is in the circular arc channel-shaped of band opening.
7. high precision vibration transducer according to claim 5, it is characterized in that, described casing assembly comprises drain pan (4), top cover (1) and soft cover (2), drain pan (4) is provided with the inner chamber (41) that top is opened wide, vibrating sensing circuit board (3) is arranged in inner chamber (41), and top cover (1) is connected with drain pan (4) top and is encapsulated in inner chamber (41) by vibrating sensing circuit board (3); Be provided with through wires hole (46) between described drain pan (4) and top cover (1), soft cover (2) is arranged in through wires hole (46), and the power lead of vibrating sensing circuit board (3) and universal serial bus to be arranged in wire sleeve (31) and to pass soft cover (2) outside.
8. high precision vibration transducer according to claim 7, it is characterized in that, inner chamber (41) wall of described drain pan (4) is provided with button bit (43), and top cover (1) bottom is provided with barb (11) and is fastened with button bit (43).
9. high precision vibration transducer according to claim 7, is characterized in that, inner chamber (41) wall of described drain pan (4) is also provided with and supports convex tendon (42), and vibrating sensing circuit board (3) is carried on and supports on convex tendon (42).
10. high precision vibration transducer according to claim 7, it is characterized in that, described through wires hole (46) is arranged on drain pan (4) side, inner chamber (41) corresponding through wires hole (46) inner side of described drain pan (4) is other is provided with dividing plate (45), forms draw-in groove (44) between dividing plate (45) and through wires hole (46); Described soft cover (2) corresponding lead cover (31) is provided with center pit, and soft cover (2) one end is provided with rest pad (21) and clamp (22) successively, and rest pad (21) is undertaken on through wires hole (46), and clamp (22) is plugged in draw-in groove (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520864307.6U CN205066931U (en) | 2015-11-02 | 2015-11-02 | High accuracy vibration sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520864307.6U CN205066931U (en) | 2015-11-02 | 2015-11-02 | High accuracy vibration sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205066931U true CN205066931U (en) | 2016-03-02 |
Family
ID=55393473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520864307.6U Withdrawn - After Issue CN205066931U (en) | 2015-11-02 | 2015-11-02 | High accuracy vibration sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205066931U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333948A (en) * | 2015-11-02 | 2016-02-17 | 深圳市君天恒讯科技有限公司 | High-precision vibration sensor |
| EP3534081A4 (en) * | 2016-10-31 | 2019-09-11 | Mitsubishi Electric Corporation | Deterioration diagnosis device and air conditioner |
-
2015
- 2015-11-02 CN CN201520864307.6U patent/CN205066931U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333948A (en) * | 2015-11-02 | 2016-02-17 | 深圳市君天恒讯科技有限公司 | High-precision vibration sensor |
| CN105333948B (en) * | 2015-11-02 | 2019-01-18 | 深圳市君天恒讯科技有限公司 | High-precision vibrating sensor |
| EP3534081A4 (en) * | 2016-10-31 | 2019-09-11 | Mitsubishi Electric Corporation | Deterioration diagnosis device and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160302 Effective date of abandoning: 20190118 |
|
| AV01 | Patent right actively abandoned |