CN211785601U - Sensor magnetic head - Google Patents
Sensor magnetic head Download PDFInfo
- Publication number
- CN211785601U CN211785601U CN202020393773.1U CN202020393773U CN211785601U CN 211785601 U CN211785601 U CN 211785601U CN 202020393773 U CN202020393773 U CN 202020393773U CN 211785601 U CN211785601 U CN 211785601U
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- circuit board
- mounting
- mount pad
- magnetic resistance
- mounting groove
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Abstract
The utility model provides a sensor magnetic head for the rotational speed and the initial point position of detection gear, it is right including being used for the gear carries out the magnetic resistance element that detects, still includes base, mount pad, first circuit board, second circuit board, magnet and screening glass, the mount pad set up in on the base, the second circuit board set up in the mount pad, first circuit board with second circuit board electric connection, the magnetic resistance element set up in on the second circuit board, the magnet set up in with the cooperation in the mount pad the magnetic resistance element detects, the screening glass lid is located on the mount pad with the protection set up in the mount pad the magnetic resistance element reaches the second circuit board. The sensor magnetic head is provided with the protection sheet, so that the magnetic resistance element and the second circuit board which are close to the workpieces to be measured, such as gears and the like, can be protected in the using process, are not easy to be scratched or damaged, and are long in service life, simple in process and low in cost.
Description
Technical Field
The utility model relates to a sensing mechanism, especially a sensor magnetic head.
Background
In modern society, sensors are used in more and more places to monitor and monitor the status of various devices or components. In the rotation control of the gear, it is necessary to detect the rotation speed of the gear and the origin position of the gear to position the position of the gear, and therefore, it is necessary to monitor the rotation speed and the origin position by using a sensor. And adopt the sensor to detect the gear and need install its rodent of neighbouring gear, the scratch condition appears easily in the use, need often maintain to the sensor commonly used now is integrative design, consequently, when needing the maintenance, must change whole device, causes to detect discontinuously, and detects the cost increase.
SUMMERY OF THE UTILITY MODEL
In view of the above, there is a need to provide a sensor head.
The utility model provides a sensor magnetic head for the rotational speed and the initial point position of detection gear, it is right including being used for the gear carries out the magnetic resistance element that detects, still includes base, mount pad, first circuit board, second circuit board, magnet and screening glass, the mount pad set up in on the base, the second circuit board set up in the mount pad, first circuit board with second circuit board electric connection, the magnetic resistance element set up in on the second circuit board, the magnet set up in with the cooperation in the mount pad the magnetic resistance element detects, the screening glass lid is located on the mount pad with the protection set up in the mount pad the magnetic resistance element reaches the second circuit board.
Further, the sensor head further includes a connector disposed on the first circuit board.
Further, the base includes installation department and two fixed parts, two the fixed part is respectively certainly the corresponding one end of installation department outwards extends, the accepting groove has been seted up to one side of installation department, the mount pad set up in the accepting groove.
Furthermore, a fixing hole is formed in the fixing portion and used for being matched with a fastener to fix the base.
Furthermore, the sensor magnetic head further comprises a fixing piece, mounting holes are respectively formed in two sides of the accommodating groove, a setting hole is formed in the mounting seat opposite to the mounting holes, and the fixing piece penetrates through the setting hole and the mounting holes to fix the mounting seat in the accommodating groove.
Furthermore, a mounting groove is formed in the mounting seat, and the second circuit board is mounted in the mounting groove.
Furthermore, one side of the second circuit board, which faces the first circuit board, is provided with a plurality of connecting pieces, the bottom of the mounting groove is provided with connecting holes, and the connecting pieces penetrate through the connecting holes and are arranged on the first circuit board so as to electrically connect the second circuit board with the first circuit board.
Further, the bottom of mounting groove has seted up the mounting hole, through wear to establish the second circuit board set up in the installed part in the mounting hole will the second circuit board is fixed in the mounting groove.
Furthermore, the magnetic resistance element is arranged on one surface of the second circuit board far away from the mounting seat and contained in the mounting groove, and the protective sheet is covered on the mounting groove.
Further, the bottom of the mounting groove is provided with a fixing groove, and the magnet is arranged in the fixing groove.
The sensor magnetic head is provided with the magnetoresistive element on the second circuit board, the first circuit board is electrically connected with the second circuit board, and meanwhile, the second circuit board and the magnet are arranged in the mounting seat and the protection sheet is arranged. In the using process, the magnetic resistance element and the second circuit board close to the workpiece to be measured such as the gear can be protected, and the magnetic resistance element and the second circuit board are not easy to be scratched or damaged, and have long service life, simple process and low cost.
Drawings
Fig. 1 is a schematic perspective view of a sensor head detection gear according to an embodiment of the present invention.
FIG. 2 is a partially exploded perspective view of the sensor head of FIG. 1.
FIG. 3 is a partially exploded perspective view of the sensor head of FIG. 1 from another perspective.
Description of the main elements
The following detailed description of the invention will be further described in conjunction with the above-identified drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely 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, 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 belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 and 2, an embodiment of the present invention provides a sensor head 100. The sensor head 100 can detect the rotation speed and direction of the gear 200 and the origin position of the gear, so as to measure the speed, determine the direction, and position the gear 200.
Referring to fig. 2 and 3, the base 10 includes a mounting portion 11 and two fixing portions 12. The mounting portion 11 is substantially block-shaped. The mounting portion 11 and the fixing portion 12 are integrally formed, and the two fixing portions 12 respectively extend outward from one corresponding ends of the mounting portion 11. One side of the mounting portion 11 is opened with a receiving groove 111. The mounting seat 20 is disposed in the receiving groove 111. The fixing portion 12 is provided with a fixing hole 121. The fixing holes 121 are used to cooperate with fasteners (e.g., screws, bolts, etc.) to fix the base 10.
The mounting seat 20 is provided with a mounting groove 21. The mounting groove 21 is used to mount the second circuit board 40.
In one embodiment, the mounting holes 112 are respectively formed on two sides of the receiving groove 111 of the mounting portion 11. The mounting base 20 has a mounting hole 22 opposite to the mounting hole 112. The transducer head 100 also includes a mount 90. The fixing member 90 is disposed in the mounting hole 112 through the mounting hole 22, so that the mounting seat 20 is fixed in the accommodating groove 111.
The first circuit board 30 is a control circuit board, and the first circuit board 30 is provided with a control circuit.
The second circuit board 40 is a magnetoresistive element mounting board, and the second circuit board 40 is provided with a circuit for controlling the magnetoresistive element 50.
The second circuit board 40 is provided with a plurality of connectors 41 on a side facing the first circuit board 30. By disposing the connector 41 on the first circuit board 30, the second circuit board 40 is electrically connected to the first circuit board 30.
In one embodiment, the connecting member 41 is a copper needle.
The bottom of the mounting groove 21 is provided with a mounting hole 211. The second circuit board 40 is fixed in the mounting groove 21 by passing the mounting member 42, in which the second circuit board 40 is disposed in the mounting hole 211.
The bottom of the mounting groove 21 is further provided with a connecting hole 212. The connection hole 212 is for receiving the connection member 41.
The magnetoresistive element 50 is disposed on a surface of the second circuit board 40 away from the mounting seat 20 and is received in the mounting groove 21. The magneto-resistive element 50 is electrically connected to the circuit on the second circuit board 40.
In one embodiment, two magnetoresistive elements 50 are provided, and the two magnetoresistive elements 50 are disposed side by side on the second circuit board 40.
The bottom of the mounting groove 21 is further opened with a fixing groove 213. The magnet 60 is disposed in the fixing groove 213.
In one embodiment, the magnet 60 is a permanent magnet.
The connector 70 is disposed on a surface of the first circuit board 30 away from the mounting base 20 and electrically connected to the circuit on the first circuit board 30.
The protection sheet 80 is covered on the mounting groove 21 of the mounting seat 20. The protective sheet 80 can seal the mounting groove 21 and protect the magnetoresistive element 50 and the second circuit board 40.
In assembly, the magnet 60 is first placed in the fixing groove 213. Subsequently, the connecting member 41 on the second circuit board 40 is inserted through the connecting hole 212, and then one end of the connecting member 41 inserted through the connecting hole 212 is electrically connected to the first circuit board 30 by soldering or the like. The second circuit board 40 is fixed in the mounting groove 21 by the mounting member 42. The protective sheet 80 is covered on the mounting groove 21. The mounting seat 20 is fixed in the receiving groove 111 by the fixing member 90.
When the sensor head 100 is attached, as shown in fig. 1, the protective sheet 80 is brought close to the teeth of the gear 200.
In the sensor head 100, the magnetoresistive element 50 is disposed on the second circuit board 40, the first circuit board 30 is electrically connected to the second circuit board 40, the second circuit board 40 and the magnet 60 are disposed in the mounting seat 20, and the mounting seat 20 is sealed by the protective sheet 80. In the using process, the magnetic resistance element 50 and the second circuit board 40 close to the workpiece to be measured such as the gear can be protected, and are not easy to be scratched or damaged, the service life is long, the process is simple, and the cost is low.
In addition, other changes may be made by those skilled in the art without departing from the spirit of the invention, and it is intended that all such changes be considered within the scope of the invention.
Claims (10)
1. A sensor head for detecting the rotational speed and the origin position of a gear, comprising a magnetoresistive element for detecting the gear, characterized in that: still include base, mount pad, first circuit board, second circuit board, magnet and screening glass, the mount pad set up in on the base, the second circuit board set up in the mount pad, first circuit board with second circuit board electric connection, the magnetic resistance component set up in on the second circuit board, the magnet set up in with the cooperation in the mount pad the magnetic resistance component detects, the screening glass lid is located set up in order to protect on the mount pad in the magnetic resistance component reaches the second circuit board.
2. The transducer head of claim 1, wherein: the sensor head also includes a connector disposed on the first circuit board.
3. The transducer head of claim 1, wherein: the base comprises an installation part and two fixing parts, the two fixing parts respectively extend outwards from one end corresponding to the installation part, an accommodating groove is formed in one side of the installation part, and the installation seat is arranged in the accommodating groove.
4. The transducer head of claim 3, wherein: the fixing part is provided with a fixing hole, and the fixing hole is used for being matched with a fastener to fix the base.
5. The transducer head of claim 3, wherein: the sensor magnetic head further comprises a fixing piece, mounting holes are formed in two sides of the accommodating groove respectively, a setting hole is formed in the mounting seat opposite to the mounting holes, and the fixing piece penetrates through the setting hole and the mounting holes to fix the mounting seat in the accommodating groove.
6. The transducer head of claim 1, wherein: the mounting seat is provided with a mounting groove, and the second circuit board is mounted in the mounting groove.
7. The transducer head of claim 6, wherein: the second circuit board is provided with a plurality of connecting pieces towards one side of the first circuit board, a connecting hole is formed in the bottom of the mounting groove, and the connecting pieces penetrate through the connecting holes and are arranged on the first circuit board so as to electrically connect the second circuit board with the first circuit board.
8. The transducer head of claim 6, wherein: the mounting hole has been seted up to the bottom of mounting groove, through wearing to establish the second circuit board set up in the installed part in the mounting hole will the second circuit board is fixed in the mounting groove.
9. The transducer head of claim 6, wherein: the magnetic resistance element is arranged on one face, away from the mounting seat, of the second circuit board and contained in the mounting groove, and the protective sheet covers the mounting groove.
10. The transducer head of claim 6, wherein: the bottom of mounting groove has seted up the fixed slot, the magnet set up in the fixed slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020393773.1U CN211785601U (en) | 2020-03-24 | 2020-03-24 | Sensor magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020393773.1U CN211785601U (en) | 2020-03-24 | 2020-03-24 | Sensor magnetic head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211785601U true CN211785601U (en) | 2020-10-27 |
Family
ID=72932054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020393773.1U Active CN211785601U (en) | 2020-03-24 | 2020-03-24 | Sensor magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211785601U (en) |
-
2020
- 2020-03-24 CN CN202020393773.1U patent/CN211785601U/en active Active
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