CN202710174U - Vibration pickup - Google Patents
Vibration pickup Download PDFInfo
- Publication number
- CN202710174U CN202710174U CN 201220374183 CN201220374183U CN202710174U CN 202710174 U CN202710174 U CN 202710174U CN 201220374183 CN201220374183 CN 201220374183 CN 201220374183 U CN201220374183 U CN 201220374183U CN 202710174 U CN202710174 U CN 202710174U
- Authority
- CN
- China
- Prior art keywords
- insulating
- vibration
- vibration transducer
- housing
- magnetic support
- Prior art date
- 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.)
- Expired - Fee Related
Links
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model discloses a vibration pickup, and relates to the technical field of sensor application. The vibration pickup comprises a circular magnetic seat and a vibration sensor connected with the magnetic seat through a nylon stud. The vibration pickup is characterized in that an insulating spacer is provided between the magnetic seat and the vibration sensor, the vibration sensor is sleeved into an insulating housing, a filler is provided between the insulating housing and the vibration sensor, the insulating spacer is a polyfluortetraethylene spacer, the insulating housing is a nylon housing, and the insulating filler is an insulating paste. Compared with the prior art, since the vibration sensor is insulated from the periphery, an insulated gate bipolar transistor (IGBT) in a controller cannot be damaged because the vibration pickup housing is connected to the ground or the grounding resistance is too small.
Description
Technical field
The utility model relates to the sensor application technical field, especially a kind of in oscillating aging equipment for detection of the vibration sensor.
Background technology
Oscillation pickup is to detect the resonant frequency of the part that shaken and convert electric signal in oscillating aging, and controller carries out speed governing according to the electric signal of passing back to the direct current generator on the vibrator, at the subresonance frequency part is implemented oscillating aging and processes; The technical scheme of existing a kind of oscillation pickup is: the magnetic support that a circle arranged and the vibration transducer that is connected metallic stud and is connected with described magnetic support, an electrode of this vibration transducer is connected with the metal shell of vibration transducer, and another electrode is connected with internal circuit.
In use there is following deficiency in this technical scheme: an electrode of vibration transducer is a conductor that is communicated with by metallic stud and magnetic support, the oscillation pickup of this structure just can cause the insulated gate bipolar transistor (IGBT) of the controller inside that is connected with this oscillation pickup to damage when the earthing of casing or stake resistance are too small.
The utility model content
Technical problem to be solved in the utility model provides a kind of when the earthing of casing or stake resistance are too small, the oscillation pickup that the insulated gate bipolar transistor of controller inside (IGBT) can not damage.
The technical scheme that the utility model technical solution problem adopts is: a kind of oscillation pickup, the magnetic support that includes a circle and the vibration transducer that is connected the nylon double-screw bolt and is connected with described magnetic support, be provided with insulation spacer between described magnetic support and the described vibration transducer, described vibration transducer is sleeved in the insulation crust, is provided with filling material 5 between described insulation crust and the described vibration transducer.
In the above-mentioned clamp technology scheme, technical scheme can also be more specifically: described insulation spacer is teflon gasket; Described insulation crust be nylon outer shell; Described insulation filler 5 is insulating gel.
Owing to having adopted technique scheme, the utility model compared with prior art, the beneficial effect that has is: because vibration transducer and insulation on every side, the insulated gate bipolar transistor of controller inside (IGBT) can not damage because the oscillation pickup earthing of casing or stake resistance are too small.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
Oscillation pickup as shown in Figure 1, the magnetic support 1 of being made by permanent magnetic material is arranged, vibration transducer 4 is contained in magnetic support 1 top, vibration transducer 4 is connected with magnetic support 1 by nylon double-screw bolt 3, between magnetic support 1 and the vibration transducer 4 teflon insulation pad 2 is housed, the head of vibration transducer 4 stretches out cable 7, and these cable 7 parts are same as the prior art; Magnetic support 1 overcoat has nylon tube shell 6, and the height of shell 6 is greater than the height sum of magnetic support 1 with vibration transducer 4; Be filled with insulating gel 6 between vibration transducer 4 and the shell 6.Although an electrode of vibration transducer 4 is connected with metal shell, vibration transducer 4 with insulate on every side, the insulated gate bipolar transistor of controller inside (IGBT) can not damage because the oscillation pickup earthing of casing or stake resistance are too small.
Claims (2)
1. oscillation pickup, the magnetic support (1) that includes a circle and the vibration transducer (4) that is connected nylon double-screw bolt (3) and is connected with described magnetic support (1), it is characterized in that: be provided with insulation spacer (2) between described magnetic support (1) and the described vibration transducer (4), described vibration transducer (4) is sleeved in the insulation crust (6), is provided with filling material (5) between described insulation crust (6) and the described vibration transducer (4).
2. oscillation pickup according to claim 1, it is characterized in that: described insulation spacer (2) is teflon gasket; Described insulation crust (6) is nylon outer shell; Described insulation filler (5) is insulating gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220374183 CN202710174U (en) | 2012-07-31 | 2012-07-31 | Vibration pickup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220374183 CN202710174U (en) | 2012-07-31 | 2012-07-31 | Vibration pickup |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202710174U true CN202710174U (en) | 2013-01-30 |
Family
ID=47590465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220374183 Expired - Fee Related CN202710174U (en) | 2012-07-31 | 2012-07-31 | Vibration pickup |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202710174U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798461A (en) * | 2012-07-31 | 2012-11-28 | 南宁市神华振动时效技术研究所 | Vibration measurer |
-
2012
- 2012-07-31 CN CN 201220374183 patent/CN202710174U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102798461A (en) * | 2012-07-31 | 2012-11-28 | 南宁市神华振动时效技术研究所 | Vibration measurer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20200731 |