CN110220552B

CN110220552B - Sensor head

Info

Publication number: CN110220552B
Application number: CN201910335525.3A
Authority: CN
Inventors: 黄元富
Original assignee: Shenzhen Bupin Electronics Co ltd
Current assignee: Shenzhen Bupin Electronics Co ltd
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2024-12-27
Anticipated expiration: 2039-04-24
Also published as: CN110220552A

Abstract

The invention provides a sensor magnetic head which is used for detecting the rotating speed of a gear and the original position of the gear, and comprises a mounting seat, a first circuit board, a second circuit board, a sensitive element and a magnet, wherein the first circuit board and the second circuit board are electrically connected and are arranged on the mounting seat at intervals, the first circuit board is arranged on one side of the mounting seat, the sensitive element is arranged on the first circuit board to detect the rotating speed of the gear and the original position of the gear, and the magnet is arranged on the mounting seat to be matched with the sensitive element for detection. Through setting up the sensing element on first circuit board to with first circuit board and second circuit board electric connection, make in the use, when the sensing element breaks down or need change the sensing element, only need change the first circuit board that installs the sensing element can, need not wholly scrap or replace, practiced thrift the cost.

Description

Sensor magnetic head

Technical Field

The present invention relates to a sensing mechanism, and more particularly to a sensor head.

Background

In modern society, sensors are increasingly being used to monitor the status of various devices or components. In the rotation control of the gear, it is necessary to detect the rotational speed of the gear and the origin position of the gear to locate the position of the gear, and therefore, it is necessary to monitor the position by using a sensor. The sensor is adopted to detect the gear, the meshing teeth of the adjacent gear are required to be installed, and scratch is easy to occur in the using process, so that the sensor is required to be replaced frequently, and the sensors commonly used at present are all integrally designed, so that the whole device is required to be replaced.

Disclosure of Invention

In view of the above, it is necessary to provide a sensor head to solve the above-described problems.

The utility model provides a sensor magnetic head for detect the rotational speed of gear and the origin position of gear, the sensor magnetic head includes mount pad, first circuit board, second circuit board, sensing element and magnet, first circuit board with second circuit board electric connection and each other the interval set up in on the mount pad, first circuit board set up in one side of mount pad, the sensing element set up in on the first circuit board in order to right rotational speed of gear and the origin position of gear detect, the magnet set up in on the mount pad in order to cooperate the sensing element detects.

Further, the sensor head further includes a connector disposed on the second circuit board.

Further, a connection female seat is arranged on one surface of the first circuit board, which is opposite to the second circuit board, a containing hole is formed in the connection female seat, a connection male seat is arranged on one surface of the second circuit board, which is opposite to the first circuit board, and the connection male seat is used for being inserted into the containing hole of the connection female seat so that the first circuit board is electrically connected with the second circuit board.

Further, the second circuit board is disposed at the other side of the mounting seat relative to the first circuit board.

Further, the mounting seat comprises a mounting portion and two fixing portions, the two fixing portions extend outwards from one sides of the mounting portion, the mounting portion is provided with a containing groove, the magnet is arranged in the containing groove, the first circuit board is arranged on the mounting portion, one side of the containing groove is provided with the sealing cover, and the second circuit board is arranged on one side of the mounting portion, which is away from the first circuit board.

Further, a fixing hole is formed in the fixing portion and is used for being matched with a fastener to fix the mounting seat.

Further, the mounting portion is integrally formed with the fixing portion.

Further, the sensor head further includes fasteners passing through the holes in the first circuit board and the mounting portion, and the holes in the second circuit board and the mounting portion, respectively, to fix the first circuit board and the second circuit board to the mounting portion, respectively.

Further, the sensitive element is a magneto-dependent sensor.

Further, the magnet is a permanent magnet.

According to the sensor magnetic head, the sensitive element is arranged on the first circuit board and is electrically connected with the second circuit board, so that when the sensitive element breaks down or needs to be replaced in the use process, the first circuit board provided with the sensitive element is replaced, the whole scrapping or replacement is not needed, and the cost is saved.

Drawings

FIG. 1 is a schematic perspective view of a sensor head sensing gear in one embodiment of the 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 reference signs

The invention will be further described in the following detailed description in conjunction with the above-described figures.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the 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 herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, the present invention provides a transducer magnetic head 100. The sensor head 100 can detect the rotational speed of the gear 200 and the like, the origin position of the gear, and the like, to thereby position the gear 200. The sensor head 100 includes a mounting base 10, a first circuit board 20, a second circuit board 30, a sensor 40, a magnet 50 (see fig. 2), and a connector 60. The first circuit board 20 and the second circuit board 30 are electrically connected and respectively disposed on two sides of the mounting base 10. The sensor 40 is disposed on the first circuit board 20 to detect the rotation speed of the gear 200, the origin position of the gear, and the like. A magnet 50 is disposed on the mounting base 10 to cooperate with the sensing element 40 for detection. The connector 60 is disposed on the second circuit board 30 to enable the sensor head 100 to be electrically connected to an external circuit.

Referring to fig. 2 and 3, the mounting base 10 includes a mounting portion 11 and two fixing portions 12. The mounting portion 11 is substantially rectangular parallelepiped. The mounting portion 11 is provided with a receiving groove 111. The magnet 50 is disposed in the receiving groove 111. The first circuit board 20 is disposed on the mounting portion 11 and covers a surface having the accommodating groove 111. The second circuit board 30 is disposed on a surface of the mounting portion 11 facing away from the first circuit board 20 and parallel to the first circuit board 20. The mounting portion 11 and the fixing portion 12 are integrally formed, and the two fixing portions 12 extend outwardly from opposite sides of the mounting portion 11, respectively. 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 mount 10.

The first circuit board 20 is a sensor mounting board, and a circuit for controlling the sensor 40 is disposed on the first circuit board 20.

The first circuit board 20 is further provided with a connection mother seat 21 on a surface opposite to the second circuit board 30. The connection socket 21 is provided with a receiving hole 211.

The second circuit board 30 is a control board, and the second circuit board 30 is configured with a total control circuit.

The second circuit board 30 is further provided with a connection male seat 31 on a surface opposite to the first circuit board 20. The male connector 31 is inserted into the receiving hole 211 of the female connector 21 to be matched with the female connector 21 so as to electrically connect the first circuit board 20 and the second circuit board 30.

The sensing element 40 is disposed on a surface of the first circuit board 20 away from the mounting base 10 and electrically connected to the circuit on the first circuit board 20.

In this embodiment, there are two sensing elements 40, and the two sensing elements 40 are disposed side by side on the first circuit board 20.

In this embodiment, the sensing element 40 is a magneto-sensitive element, and specifically, the sensing element 40 is a magneto-sensitive sensor.

In this embodiment, there are two side-by-side receiving grooves 111, two magnets 50, and two magnets 50 are respectively disposed in a corresponding receiving groove 111.

In this embodiment, the magnet 50 is a permanent magnet.

The connector 60 is disposed on a surface of the second circuit board 30 away from the mounting base 10 and electrically connected to the circuits on the second circuit board 30.

In this embodiment, the mounting portion 11 is further provided with a positioning hole 112 and a mounting hole 113. The first circuit board 20 is provided with an alignment hole 22. The second circuit board 30 is provided with a mounting hole 32. The positioning hole 112 and the alignment hole 22 cooperate with each other through fasteners (such as screws, bolts, etc.) to position and fix the first circuit board 20 on the mounting base 10. The mounting holes 113 cooperate with the mounting holes 32 to secure the second circuit board 30 to the mount 10 by fasteners (e.g., screws, bolts, etc.).

It should be understood that in other embodiments, the mounting portion 11 may further be provided with positioning posts or positioning pins to position the positioning holes 22 and the mounting holes 32 on the first circuit board 20 and the second circuit board 30, and positioning posts or positioning pins to position the positioning holes 112 and the mounting holes 113 on the mounting portion 11 may also be provided on the first circuit board 20 and the second circuit board 30.

During assembly, the second circuit board 30 is positioned on the mounting base 10 through the mounting holes 113 and the mounting holes 32, and is fixed by the fasteners, then the magnet 50 is installed in the accommodating groove 111 of the mounting base 10, and finally the first circuit board 20 and the mounting base 10 are positioned through the positioning holes 112 and the alignment holes 22, the male connection base 31 is inserted into the female connection base 21, and is fixed on the mounting base by the fasteners.

When the sensor head 100 is mounted, as shown in fig. 2, the sensor 40 on the first circuit board 20 is brought close to the teeth of the gear 200 (as shown in fig. 1).

The sensor magnetic head 100 is arranged on the first circuit board 20 and electrically connects the first circuit board 20 with the second circuit board 30, so that when the sensor 40 malfunctions (such as scraping or crashing) or needs to be replaced, only the first circuit board 20 provided with the sensor 40 needs to be replaced, and the whole scrapping or replacement is not needed, thereby saving the cost. And only the first circuit board 20 to be replaced is required to be mounted on the mounting seat 10 through the positioning hole 112 and the alignment hole 22, so that the sensor sensitive element 40 on the sensor is not required to be positioned and corrected again, and the working efficiency is improved.

Further, other variations within the spirit of the present invention will occur to those skilled in the art, and it is intended, of course, that such variations be included within the scope of the invention as claimed herein.

Claims

1. The sensor magnetic head is used for detecting the rotating speed of the gear and the original position of the gear and is characterized by comprising a mounting seat, a first circuit board, a second circuit board, a sensitive element and a magnet, wherein the first circuit board and the second circuit board are electrically connected and are arranged on the mounting seat at intervals, the first circuit board is arranged on one side of the mounting seat, the sensitive element is arranged on the first circuit board to detect the rotating speed of the gear and the original position of the gear, and the magnet is arranged on the mounting seat to cooperate with the sensitive element for detection;

A connecting female seat is arranged on one surface of the first circuit board, which is opposite to the second circuit board, a containing hole is formed in the connecting female seat, a connecting male seat is arranged on one surface of the second circuit board, which is opposite to the first circuit board, and the connecting male seat is used for being inserted into the containing hole of the connecting female seat so that the first circuit board is electrically connected with the second circuit board;

The mounting seat comprises a mounting part and two fixing parts, wherein the two fixing parts respectively extend outwards from one side of the mounting part, which is opposite to the mounting part, fixing holes are formed in the fixing parts and are used for being matched with fasteners to fix the mounting seat; the sensor head further includes fasteners passing through the holes in the first circuit board and the mounting portion, and the holes in the second circuit board and the mounting portion, respectively, to secure the first circuit board and the second circuit board to the mounting portion, respectively.

2. The sensor head of claim 1 wherein the sensor head further comprises a connector disposed on the second circuit board.

3. The sensor head of claim 1 wherein said second circuit board is disposed on the opposite side of said mounting base from said first circuit board.

4. The sensor head of claim 1 or 3, wherein the mounting portion has a receiving slot, the magnet is disposed in the receiving slot, the first circuit board is disposed on the mounting portion and covers a surface of the receiving slot, and the second circuit board is disposed on a surface of the mounting portion facing away from the first circuit board.

5. The sensor head of claim 1 wherein said mounting portion is integrally formed with said mounting portion.

6. The sensor head of claim 1 wherein the sensor element is a magneto-dependent sensor.

7. The sensor head of claim 1 wherein said magnet is a permanent magnet.