CN211602153U - Wireless vibration sensor and system for isolating interference - Google Patents
Wireless vibration sensor and system for isolating interference Download PDFInfo
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- CN211602153U CN211602153U CN202020549233.8U CN202020549233U CN211602153U CN 211602153 U CN211602153 U CN 211602153U CN 202020549233 U CN202020549233 U CN 202020549233U CN 211602153 U CN211602153 U CN 211602153U
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Abstract
The utility model relates to a sensor structure field especially relates to a wireless vibration sensor and system of isolation interference, can effectively fix the detecting element in the sensor, keeps the rate of accuracy that detects. The utility model provides an keep apart wireless vibration sensor of interference, includes base, vibration detecting element and isolation component, the base is equipped with the cavity, vibration sensor sets up in the cavity, isolation component includes insulating gland, vibration detecting element sets up in the cavity to it is fixed through insulating gland. The insulating gland can fix the vibration detection unit in the base to the physical characteristics that the mechanical type is connected make the fixed of vibration detection unit difficult because of the live time overlength not hard up, and be convenient for maintain, it is longer to compare the life-span with the pouring sealant mode, more is favorable to keeping the rate of accuracy that detects.
Description
Technical Field
The utility model relates to a sensor structure field especially relates to a wireless vibration sensor and system of isolation interference.
Background
In the existing industrial field, a plurality of sensors are needed to collect the equipment state information (vibration temperature and the like), and the sensors are mostly in a wired structure. The sensor of wired mode needs external power supply more to signal propagation all needs to pass through the cable transmission, and when sensor node quantity is many, the wiring task can become complicated, and the wiring not only can influence whole equipment outward appearance and still can bring certain potential safety hazard, and the configuration operation that needs go on before the sensor uses, not only wastes time and energy but also complex operation.
The chinese utility model patent with patent number 201821884741.0 discloses a built-in type wireless vibration sensor of antenna can realize the collection of data through wireless transmission's mode, and the power supply of sensor adopts battery powered, has removed the use of cable from.
Although the scheme solves the problem of wireless monitoring of the vibration sensor, the fixing of the detection element in the sensor is realized in a pouring sealant mode, but the pouring sealant has poor physical properties, and the stability of the detection element cannot be maintained in a vibration environment for a long time, so that the detection accuracy is influenced.
SUMMERY OF THE UTILITY MODEL
The above-mentioned not enough to prior art, the utility model provides an keep apart wireless vibration sensor and system of interference can effectively fix the detecting element in the sensor, keeps the rate of accuracy that detects.
The utility model provides a scheme as follows:
the utility model provides an keep apart wireless vibration sensor of interference, includes base, vibration detecting element and isolation component, the base is equipped with the cavity, isolation component includes insulating gland, vibration detecting element sets up in the cavity to it is fixed through insulating gland. The insulating gland can fix the vibration detection unit in the base to the physical characteristics that the mechanical type is connected make the fixed of vibration detection unit difficult because of the live time overlength not hard up, and be convenient for maintain, it is longer to compare the life-span with the pouring sealant mode, more is favorable to keeping the rate of accuracy that detects. In general, in order to shield external electromagnetic interference, a metal material, such as stainless steel, is used for a housing of the sensor, but the metal housing carries electric charges, which affect the operation of the vibration detection unit, and therefore the vibration detection unit needs to be insulated from the housing. The isolation components are made of insulating materials.
Preferably, the isolation assembly further comprises an insulating plate, and the insulating gland and the insulating plate are arranged on the upper side and the lower side of the vibration detection unit and are in contact connection with the vibration detection unit. The insulation board is matched with the insulation gland to fix the vibration detection unit between the insulation board and the insulation gland, so that the insulation board is isolated from an external metal shell.
Preferably, the bottom of the insulating plate is connected with the base through a limiting boss, and the insulating plate and the base are relatively fixed. Spacing boss can be further fixed the insulation board, reduces the not hard up possibility of insulation board appearance, makes the vibration detecting element more firm. One of the bottom of the insulating plate and the base is provided with a boss, and the other is provided with a groove matched with the boss. Spacing boss can be prismatic or with the cylinder of insulation board decentraction, generally speaking, spacing boss plays restriction insulation board pivoted function, as long as can all realize above-mentioned function with cylindrical or ring shape that the insulation board communicated not, belong to the utility model discloses a design.
Preferably, the vibration detection unit includes a piezoelectric core body arranged in an annular shape, and the insulating gland is provided with a first wiring hole at a center corresponding to the annular shape. The first wiring hole is used for penetrating through a lead connected with the piezoelectric core body, is located at the center and cannot interfere with the lead when the insulating pressure rod is fixed.
Preferably, the insulating plate is provided with a blind hole with an upward opening, and a temperature sensor is arranged in the blind hole. The temperature sensor can be matched with and collect temperature parameters of a use environment, is integrated in the vibration sensor, is fixed on the insulating plate, and is compact in structure and free of extra occupied space.
Preferably, the insulating gland is provided with a second wiring hole. The second wiring hole is used for passing through a lead wire connected with the temperature sensor.
Preferably, the second wire holes are distributed in a surrounding manner along the circumferential direction, and the insulating gland is in threaded connection with the base. The form of threaded connection can guarantee that insulating gland can be fixed for a long time steadily, but the screw thread needs to rotate at the in-process of locking, and sensor itself is small, if sets up the instrument interface for the convenience of being connected of instrument and insulating gland, then can lead to the volume and the shape of insulating gland not compact small and exquisite enough. The second wiring holes are arranged, the second wiring holes can be used for passing through wires and can also be used as interfaces of tightening tools, and relevant tools (with plugs matched with the second wiring holes) are inserted into the second wiring holes to rotate.
Preferably, the second wire hole is a slotted hole. The long slotted hole can provide enough space for a tool and the lead, the lead cannot be squeezed after the tool is inserted, and the long slotted hole can provide larger moving space for the lead and cannot be tightened too much in the fixing process of the insulation gland.
Preferably, the insulating plate is connected with the base through an insulating nail. Insulating nail can be fixed the insulation board on vertical direction, further strengthens the stability of whole device.
Preferably, the base is opened at the top of the cavity, the insulating gland is arranged at the opening, the upper surface of the insulating gland is lower than the height of the opening of the cavity, and the base forms an annular step around the insulating gland. The top of the insulating gland forms a concave structure relative to the top of the cavity, and when the sensor is assembled, components such as a battery bin and the like can be installed above the insulating gland. When the battery compartment is used for fixing the battery and applying pressure to the battery to fix the battery, the pressure is not directly transmitted to the insulating gland but transmitted to the base, so that the fixation of the piezoelectric core body is not influenced.
Preferably, the base is provided with a stringing hole. The stringing hole is used for setting up prevents losing the rope, when the sensor drops on equipment, prevents losing the rope and can prevent it and lose.
Preferably, still include battery, controller, filtering module, wireless transmission module, piezoelectric core, temperature sensor, controller, filtering module and wireless transmission module are connected to the battery, piezoelectric core, filtering module, controller and wireless transmission module connect gradually, temperature sensor connects the controller. The sensor can also comprise a battery bin and other components used for arranging a battery, a controller, a filtering module and a wireless transmission module, and the controller, the filtering module and the wireless transmission module can be integrated on a circuit board.
The utility model discloses following beneficial effect has:
1. compared with the prior art, the piezoelectric core body is fixed by adopting a mechanical structure, so that the phenomena of loosening of pouring sealant, cracking and the like due to vibration can be avoided even if the piezoelectric core body is used for a long time, the service life is prolonged, and the accuracy of detection is ensured;
2. the insulating gland is simple in structure, the inner space of the sensor is effectively saved, the production cost is reduced, the second wiring hole can provide a path for a lead to pass through, and meanwhile, the second wiring hole can also be used as an interface of tools such as a wrench and the like, so that the second wiring hole is convenient to assemble;
3. the insulation board is fixed with the base through spacing boss and insulating nail for the insulation board is more firm, has indirectly kept the stability of piezoelectricity core, simultaneously because insulation board self can accomplish completely fixed, consequently the insulation board produces not hard up trend and can not transmit for insulating gland, has alleviateed insulating gland's burden, makes insulating depression bar difficult not hard up more.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the external structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a control schematic diagram of the present invention;
in the figure, 1-base, 2-piezoelectric core, 3-insulating gland, 4-insulating plate, 5-conducting wire, 11-cavity, 12-threading hole, 31-first wiring hole, 32-second wiring hole, 41-limiting boss, 42-temperature sensor and 43-insulating nail.
Detailed Description
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
As shown in fig. 1 to fig. 3, the present embodiment discloses a wireless vibration sensor for isolating interference, which includes a base 1, a vibration detection unit and an isolation assembly, wherein the base 1 is provided with a cavity 11, the isolation assembly includes an insulation gland 3 and an insulation plate 4, and the vibration detection unit is disposed in the cavity 11 and fixed by the insulation gland 3. The insulating gland 3 and the insulating plate 4 are arranged on the upper side and the lower side of the vibration detection unit and compress the vibration detection unit.
The bottom of the insulating plate 4 is provided with a limiting boss 41, the base 1 is provided with a limiting groove matched with the base, and the insulating plate 4 and the base 1 are relatively fixed. The insulating plate 4 is provided with a blind hole with an upward opening, and a temperature sensor 42 is arranged in the blind hole. The insulating plate 4 is also connected with the base 1 by insulating nails 43. Base 1 is at 11 top openings in cavity, and insulating gland 3 sets up at the opening part, and the upper surface of insulating gland 3 is less than the height of 11 openings in cavity, and base 1 forms annular step around insulating gland 3. The insulating gland 3 is connected with the base 1 in a threaded mode.
The vibration detection unit comprises a piezoelectric core body 2 which is arranged in an annular shape, and a first wiring hole 31 is formed in the center of the insulating gland 3 corresponding to the annular shape. Insulating gland 3 still is equipped with second and walks line hole 32, and second walks line hole 32 and is a plurality of, encircles the distribution along the circumferencial direction, insulating gland 3 and base 1 threaded connection. The second wiring hole 32 is a long slot hole. The first wiring hole 31 is connected to the piezoelectric core 2 through a wire 5, and the second wiring hole 32 is connected to the temperature sensor 42 through a wire 5. The temperature sensor 42 adopts a PT10O core body, is packaged in an insulating plug, the insulating plug is in transition fit with the insulating plate 4, and heat-conducting silicone grease is coated at the matching position. The insulating plug and insulating nail 43 is preferably made of nylon, polysulfone rod or steel rod.
The base 1 is also provided with a stringing hole 12.
The utility model discloses still include battery, controller, filtering module, wireless transmission module, piezoelectric core 2, temperature sensor 42, controller, filtering module and wireless transmission module are connected to the battery, and piezoelectric core 2, filtering module, controller and wireless transmission module connect gradually, and temperature sensor 42 connection director, controller, filtering module and wireless transmission module are integrated on the circuit board.
Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and substance of the present invention, any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all such changes or substitutions are covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An isolated wireless vibration sensor, comprising: including base, vibration detecting element and isolation component, the base is equipped with the cavity, isolation component includes insulating gland, the vibration detecting element sets up in the cavity to it is fixed through insulating gland.
2. The wireless vibration sensor for isolating interference of claim 1, wherein: the isolation assembly further comprises an insulating plate, and the insulating gland and the insulating plate are arranged on the upper side and the lower side of the vibration detection unit and are in contact connection with the vibration detection unit.
3. The wireless vibration sensor for isolating interference of claim 2, wherein: the bottom of the insulating plate is connected with the base through a limiting boss, and the insulating plate is fixed relative to the base.
4. An interference isolated wireless vibration sensor according to claim 1 or 2, wherein: the vibration detection unit is a piezoelectric core body which is arranged in an annular shape, and the insulating gland is provided with a first wiring hole at the center corresponding to the annular shape.
5. The wireless vibration sensor for isolating interference of claim 2, wherein: the insulation board is provided with a blind hole with an upward opening, a temperature sensor is arranged in the blind hole, and the insulation gland is provided with a second wiring hole.
6. The wireless vibration sensor for isolating interference of claim 5, wherein: the second wire holes are distributed in a surrounding mode along the circumferential direction, the insulating gland is in threaded connection with the base, and the second wire holes are long slotted holes.
7. The wireless vibration sensor for isolating interference of claim 2, wherein: the insulating plate is connected with the base through insulating nails.
8. The wireless vibration sensor for isolating interference of claim 1, wherein: the base is opened at the top of the cavity, the insulating gland is arranged at the opening, the upper surface of the insulating gland is lower than the height of the opening of the cavity, and the base forms an annular step around the insulating gland.
9. The wireless vibration sensor for isolating interference of claim 1, wherein: the base is provided with a rope threading hole.
10. The wireless vibration sensor for isolating interference of claim 5, wherein: still include battery, controller, filtering module, wireless transmission module, piezoelectric core, temperature sensor, controller, filtering module and wireless transmission module are connected to the battery, piezoelectric core, filtering module, controller and wireless transmission module connect gradually, temperature sensor connection director.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020549233.8U CN211602153U (en) | 2020-04-14 | 2020-04-14 | Wireless vibration sensor and system for isolating interference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020549233.8U CN211602153U (en) | 2020-04-14 | 2020-04-14 | Wireless vibration sensor and system for isolating interference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211602153U true CN211602153U (en) | 2020-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020549233.8U Active CN211602153U (en) | 2020-04-14 | 2020-04-14 | Wireless vibration sensor and system for isolating interference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211602153U (en) |
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2020
- 2020-04-14 CN CN202020549233.8U patent/CN211602153U/en active Active
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