CN107576382A - Noise vibration sensor and transformer noise auto testing instrument - Google Patents
Noise vibration sensor and transformer noise auto testing instrument Download PDFInfo
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- CN107576382A CN107576382A CN201710857858.3A CN201710857858A CN107576382A CN 107576382 A CN107576382 A CN 107576382A CN 201710857858 A CN201710857858 A CN 201710857858A CN 107576382 A CN107576382 A CN 107576382A
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Abstract
The invention belongs to noise test technical field, there is provided a kind of noise vibration sensor and transformer noise auto testing instrument.The noise vibration sensor includes soft iron stem, induction coil, permanent magnet, noise reception device, hollow branch piece and transformer bearing support, soft iron stem, permanent magnet, hollow branch piece and transformer bearing support are sequentially connected, noise reception device is between permanent magnet, and it is attached at the bottom of transformer bearing support, induction coil is fixed on the both sides of noise reception device, transformer bearing support, for carrying energization transformer.Noise vibration sensor and transformer noise auto testing instrument of the present invention, the noise of transformer can easy, be quickly detected, improve the accuracy of noise test.
Description
Technical field
The present invention relates to noise test technical field, and in particular to a kind of noise vibration sensor and transformer noise are automatic
Tester.
Background technology
At present, big multiple transformers, such as it is used for household electrical appliances, instrument, the power transformer of instrument, has certain alternating current to make an uproar
Sound, when the noise is more than to a certain degree, then the peace and quiet of environment can be influenceed, therefore many household electrical appliance, such as air-conditioning, TV will
Ask relatively Jing Yin.But listened mostly in ear at present, hand touch to determine noise level, it is both inaccurate or do not apply to.
Noise that is how easy, quickly detecting transformer, improves the accuracy of noise test, is those skilled in the art
The problem of urgent need to resolve.
The content of the invention
For in the prior art the defects of, the invention provides a kind of noise vibration sensor and transformer noise to survey automatically
Instrument is tried, can easy, quickly detect the noise of transformer, improves the accuracy of noise test.
In a first aspect, the present invention provides a kind of noise vibration sensor, the noise vibration sensor includes soft iron stem, sense
Answer coil, permanent magnet, noise reception device, hollow branch piece and transformer bearing support, it is soft iron stem, permanent magnet, hollow
Branch piece and transformer bearing support are sequentially connected, and noise reception device is attached at transformer carrying between permanent magnet
The bottom of support, induction coil are fixed on the both sides of noise reception device, transformer bearing support, for carrying energization transformation
Device.
Further, noise reception device includes vibrating noise reception film and the body of rod, and the body of rod is connected to vibrating noise reception
The both sides of film, vibrating noise receive the bottom that film is attached at transformer bearing support, and the body of rod is between permanent magnet, the line of induction
Circle is fixed on the body of rod.
Further, the center of soft iron stem is provided with projection, and the body of rod is positioned at raised both sides.
Based on above-mentioned any noise vibration sensor embodiment, further, hollow branch is fixed in one end of induction coil
Piece, the other end of induction coil is provided with induction coil lead, for being connected with noise decibel instrument.
As shown from the above technical solution, the noise vibration sensor that the present embodiment provides, noise reception device is attached at
The bottom of transformer bearing support, realize the shock conditions of detection energization transformer.Induction coil is fixed on noise and receives dress
The both sides put, and between permanent magnet, vibration frequency signal is changed into current signal, realized to energization transformer
Noise measuring.
Therefore, the present embodiment noise vibration sensor, the noise of transformer can easy, be quickly detected, improves noise
The accuracy of test, reduce hardware cost.
Second aspect, the present invention provide a kind of transformer noise auto testing instrument, the transformer noise auto testing instrument bag
Include：Noise measuring case, noise vibration sensor and noise decibel instrument, the inwall of noise measuring case are pasted with Sound-proof material, noise
Detection case includes upper lid and casing, and upper lid is flexibly connected with casing, and the upper surface of casing is additionally provided with energization contact pin, for be to be checked
The energization transformer of survey provides electric flux, and noise vibration sensor is located at the centre of casing, and is flush with the upper surface of casing,
Noise decibel instrument is also connected with noise vibration sensor, for showing level of noise.
Further, upper lid is flexibly connected by tumble cylinder with casing.
Based on above-mentioned any transformer noise auto testing instrument embodiment, further, sight is additionally provided with the side wall of upper lid
Window is examined, noise decibel instrument is adapted with the position of observation window.
Based on above-mentioned any transformer noise auto testing instrument embodiment, further, when upper lid closes with casing, upper lid
Sealed with casing by sealing strip.
As shown from the above technical solution, the transformer noise auto testing instrument that the present embodiment provides, noise vibration is sensed
Device is arranged in the casing of noise measuring case, the detection environment of sealing is provided for noise vibration sensor, to improve noise measuring
Accuracy, the energization contact pin on casing provides electric flux for energization transformer to be detected, using noise decibel instrument and noise
Vibrating sensor connects, intuitively to read level of noise.
Therefore, the present embodiment transformer noise auto testing instrument, the noise of transformer can easy, be quickly detected, is carried
The accuracy of high noisy test, reduces hardware cost.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art.In all of the figs, similar element
Or part is typically identified by similar reference.In accompanying drawing, each element or part might not be drawn according to the ratio of reality.
Fig. 1 shows a kind of structural representation of noise vibration sensor provided by the present invention；
Fig. 2 shows a kind of circuit theory diagrams of transformer noise auto testing instrument provided by the present invention；
Fig. 3 shows a kind of left view of transformer noise auto testing instrument provided by the present invention；
Fig. 4 shows a kind of front view of transformer noise auto testing instrument provided by the present invention；
Fig. 5 shows a kind of right view of transformer noise auto testing instrument provided by the present invention.
Embodiment
The embodiment of technical solution of the present invention is described in detail below in conjunction with accompanying drawing.Following examples are only used for
Clearly illustrate technical scheme, therefore be intended only as example, and the protection of the present invention can not be limited with this
Scope.
It should be noted that unless otherwise indicated, technical term or scientific terminology used in this application should be this hair
The ordinary meaning that bright one of ordinary skill in the art are understood.
Noise vibration sensor and transformer noise auto testing instrument provided by the present invention, air-conditioning, ice can be applied to
Transformer used, realizes noise measuring, to solve the problems, such as noise measuring, with specific in case, household electrical appliances, control circuit, power supply
Sensor, instrument, the size of instrument measure noise, the noise level transformer that will be greater than certain standard are rejected, then improved.
In a first aspect, a kind of noise vibration sensor that the embodiment of the present invention is provided, with reference to Fig. 1, the noise vibration passes
Sensor includes：Soft iron stem 11, induction coil 12, permanent magnet 13, noise reception device 14, hollow branch piece 15 and transformer are held
Support 16 is carried, soft iron stem 11, permanent magnet 13, hollow branch piece 15 and transformer bearing support 16 are sequentially connected, and noise receives
Device 14 is attached at the bottom of transformer bearing support 16 between permanent magnet 13, and induction coil 12 is fixed on noise
The both sides of reception device 14, transformer bearing support 16, for carrying energization transformer.
In actual application, energization transformer to be detected is positioned over transformer bearing support 16 by staff
On, when energization transformer produces noise, because noise reception device 14 is close on transformer bearing support 16, energization transformer
Noise make the up-down vibration of noise reception device 14, drive and moved down on the induction coil 12 being fixed in the noise reception device 14
Dynamic, induction coil 12 is in caused by permanent magnet 13 in magnetic field, the meeting cutting magnetic line of induction coil 12, therefore, in the line of induction
Electric current is produced in circle 12, the size of current is directly proportional to the amplitude in noise reception device 14, and the signal of vibration frequency is changed
For current signal, noise measuring is realized.
As shown from the above technical solution, the noise vibration sensor that the present embodiment provides, noise reception device 14 is attached
In the bottom of transformer bearing support 16, the shock conditions for detecting energization transformer are realized.Induction coil 12 is fixed on noise
The both sides of reception device 14, and between permanent magnet 13, vibration frequency signal is changed into current signal, realize to logical
The noise measuring of piezoelectric transformer.
Therefore, the present embodiment noise vibration sensor, the noise of transformer can easy, be quickly detected, improves noise
The accuracy of test, reduce hardware cost.
In order to further improve the stability of the present embodiment noise vibration sensor, noise reception device 14 is made an uproar including vibration
Sound receives film 141 and the body of rod 142, and the body of rod 142 is connected to the both sides that vibrating noise receives film 141, and vibrating noise receives film 141 and pasted
The bottom of transformer bearing support 16 is invested, for the body of rod 142 between permanent magnet 13, induction coil 12 is fixed on the body of rod 142.
Here, noise reception device 14 receives film 141 using vibrating noise is attached at the bottom of transformer bearing support 16, then by the body of rod
142 are arranged at the both sides that vibrating noise receives film 141, with fixed inductor 12, are favorably improved induction coil 12 and cut more
More magnetic lines of force, strengthen the stability of noise vibration sensor.
The center of soft iron stem 11 is provided with projection, and the body of rod 142 is positioned at raised both sides.Here, the center of soft iron stem 11
Projection, fixed noise reception device 14 can be played a part of, prevent noise reception device 14 during moving up and down, produced
Skew or the phenomenon of dislocation, further enhance the stability of noise vibration sensor.
Hollow branch piece 15 is fixed in one end 121 of induction coil 12, and the other end of induction coil 12 draws provided with induction coil
Line 122, for being connected with noise decibel instrument.Here, one end of induction coil 12 is provided with induction coil lead 122, in order to incite somebody to action
The electric current of cutting magnetic line is external to noise decibel instrument, to show the noise level of energization transformer, is easy to staff to carry out
Detection.
Second aspect, a kind of transformer noise auto testing instrument that the embodiment of the present invention is provided, with reference to Fig. 2, Fig. 3 or figure
5, the transformer noise auto testing instrument includes noise measuring case, noise vibration sensor 1 and noise decibel instrument 2, noise measuring
The inwall of case is pasted with Sound-proof material 31, and noise measuring case includes upper lid 32 and casing 33, and upper lid 32 is flexibly connected with casing 33,
The upper surface of casing 33 is additionally provided with energization contact pin, for providing electric flux, noise vibration sensing for energization transformer to be detected
Device 1 is located at the centre of casing 33, and is flush with the upper surface of casing 33, and noise decibel instrument 2 also connects with noise vibration sensor 1
Connect, for showing level of noise.
As shown from the above technical solution, the transformer noise auto testing instrument that the present embodiment provides, noise vibration is sensed
Device 1 is arranged in the casing 33 of noise measuring case, the detection environment of sealing is provided for noise vibration sensor 1, to improve noise
The accuracy of detection, the energization contact pin on casing 33, provides electric flux, using noise decibel instrument for energization transformer to be detected
2 are connected with noise vibration sensor 1, intuitively to read level of noise.
Therefore, the present embodiment transformer noise auto testing instrument, the noise of transformer can easy, be quickly detected, is carried
The accuracy of high noisy test, reduces hardware cost.
In order to further improve the accuracy of the present embodiment transformer noise auto testing instrument, upper lid 32 passes through tumble cylinder
35 are flexibly connected with casing 33.Staff operates tumble cylinder 35, you can the opening and fastening of lid 32 and casing 33 in realization,
It is easy to lay energization transformer to be detected, further shields influence of the outside noise to noise measuring, improves the present embodiment and become
The accuracy of depressor noise auto testing instrument.
With reference to Fig. 4, observation window 34 is additionally provided with the side wall of upper lid 32, noise decibel instrument 2 and the position of observation window 34 are mutually fitted
Match somebody with somebody.Staff can detect the shock conditions of energization transformer by observation window 34, also, can be more straight by observation window 34
Observe the pointer instruction situation of noise decibel instrument 2 with seeing.
When upper lid 32 closes with casing 33, upper lid 32 is sealed with casing 33 by sealing strip 36, further prevents extraneous ring
Noise in border, the noise measuring situation to energization transformer.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme, it all should cover among the claim of the present invention and the scope of specification.
Claims (8)
- A kind of 1. noise vibration sensor, it is characterised in that including：Soft iron stem, induction coil, permanent magnet, noise reception device, hollow branch piece and transformer bearing support,The soft iron stem, the permanent magnet, the hollow branch piece and the transformer bearing support are sequentially connected,The noise reception device is attached at the bottom of the transformer bearing support between the permanent magnet,The induction coil is fixed on the both sides of the noise reception device,The transformer bearing support, for carrying energization transformer.
- 2. noise vibration sensor according to claim 1, it is characterised in thatThe noise reception device includes vibrating noise and receives film and the body of rod,The body of rod is connected to the both sides that the vibrating noise receives film,The vibrating noise receives the bottom that film is attached at the transformer bearing support,The body of rod between the permanent magnet,The induction coil is fixed on the body of rod.
- 3. noise vibration sensor according to claim 2, it is characterised in thatThe center of the soft iron stem is provided with projection,The body of rod is located at the raised both sides.
- 4. noise vibration sensor according to claim 1, it is characterised in thatThe hollow branch piece is fixed in one end of the induction coil,The other end of the induction coil is provided with induction coil lead, for being connected with noise decibel instrument.
- A kind of 5. transformer noise auto testing instrument, it is characterised in that including：Noise measuring case, noise vibration sensor and noise decibel instrument,The inwall of the noise measuring case is pasted with Sound-proof material,The noise measuring case includes upper lid and casing, and the upper lid is flexibly connected with the casing,The upper surface of the casing is additionally provided with energization contact pin, for providing electric flux for energization transformer to be detected,The noise vibration sensor is located at the centre of the casing, and is flush with the upper surface of the casing,The noise decibel instrument is also connected with the noise vibration sensor, for showing level of noise.
- 6. transformer noise auto testing instrument according to claim 5, it is characterised in thatThe upper lid is flexibly connected by tumble cylinder with the casing.
- 7. transformer noise auto testing instrument according to claim 5, it is characterised in thatObservation window is additionally provided with the side wall of the upper lid,The noise decibel instrument is adapted with the position of the observation window.
- 8. transformer noise auto testing instrument according to claim 5, it is characterised in thatWhen the upper lid closes with the casing, the upper lid is sealed with the casing by sealing strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710857858.3A CN107576382A (en) | 2017-09-21 | 2017-09-21 | Noise vibration sensor and transformer noise auto testing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710857858.3A CN107576382A (en) | 2017-09-21 | 2017-09-21 | Noise vibration sensor and transformer noise auto testing instrument |
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| Publication Number | Publication Date |
|---|---|
| CN107576382A true CN107576382A (en) | 2018-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710857858.3A Pending CN107576382A (en) | 2017-09-21 | 2017-09-21 | Noise vibration sensor and transformer noise auto testing instrument |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663114A (en) * | 2018-06-22 | 2018-10-16 | 庄明磊 | A kind of equipment carrying out Precision measurement using resonance principle amplification mechanical oscillation |
| CN112489965A (en) * | 2020-11-19 | 2021-03-12 | 浙江江山博奥电气有限公司 | Noise reduction insulation transformer |
| CN116913658A (en) * | 2023-08-27 | 2023-10-20 | 南通兴安源金属制品有限公司 | Transformer oil tank with good noise reduction effect and use method thereof |
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| CN2807222Y (en) * | 2005-06-21 | 2006-08-16 | 云南大学 | Audio frequency sensor for measuring drip in cave |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663114A (en) * | 2018-06-22 | 2018-10-16 | 庄明磊 | A kind of equipment carrying out Precision measurement using resonance principle amplification mechanical oscillation |
| CN112489965A (en) * | 2020-11-19 | 2021-03-12 | 浙江江山博奥电气有限公司 | Noise reduction insulation transformer |
| CN116913658A (en) * | 2023-08-27 | 2023-10-20 | 南通兴安源金属制品有限公司 | Transformer oil tank with good noise reduction effect and use method thereof |
| CN116913658B (en) * | 2023-08-27 | 2024-03-08 | 南通兴安源金属制品有限公司 | Transformer oil tank with good noise reduction effect and use method thereof |
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