CN102175271A - Rotary position sensor - Google Patents

Rotary position sensor Download PDF

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Publication number
CN102175271A
CN102175271A CN2011100280460A CN201110028046A CN102175271A CN 102175271 A CN102175271 A CN 102175271A CN 2011100280460 A CN2011100280460 A CN 2011100280460A CN 201110028046 A CN201110028046 A CN 201110028046A CN 102175271 A CN102175271 A CN 102175271A
Authority
CN
China
Prior art keywords
driving wheel
magnet
rotary position
sensor
casing
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.)
Pending
Application number
CN2011100280460A
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Chinese (zh)
Inventor
顾健
戴德明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hamlin Electronics Suzhou Co Ltd
Original Assignee
Hamlin Electronics Suzhou Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hamlin Electronics Suzhou Co Ltd filed Critical Hamlin Electronics Suzhou Co Ltd
Priority to CN2011100280460A priority Critical patent/CN102175271A/en
Publication of CN102175271A publication Critical patent/CN102175271A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a rotary position sensor having a casing-type body, which is characterized in that: the casing is internally provided with a driving wheel and a driven wheel which are engaged with each other, a magnet is embedded into the driven wheel, the driving wheel is internally provided with a connection slot and is connected with a shaft lever through the connection slot, and a sensor circuit is formed at the corresponding part of the magnet through a magnetic field and an electronic element. The sensor comprises a capacitor and a Hall element therein, the connection slot has the shape of D slot, and the shaft lever passes through the casing to be positioned outside the casing. The external shaft lever rotates to drive the driving wheel to rotate correspondingly, the driving wheel transmits position information of the rotation to the driven wheel so that the magnet on the driven wheel generates a magnetic field which is correspondingly changed, the hall chip senses the change to generate an electrical signal, and the sensor feeds back position information of the external shaft lever through the electrical signal of the change; the rotary position sensor is accurate in positioning, simple in structure and low in cost.

Description

A kind of rotary position transducer
Technical field
The present invention relates to a kind of sensor, especially relate to a kind of rotary position transducer of axostylus axostyle control position of rotation of penetration sensor body.
Background technology
At present, the sensor of a kind of Spin Control of widespread position on the market, be attached on the outside axostylus axostyle by ring-shaped magnet, the rotation of axostylus axostyle rotating band rotating ring shape magnet, the magnetic field that changes, and have the metal lamellar body to be in the periphery of magnet, and influencing magnetic field of magnets, the magnetic field that Hall chip is promptly responded to this variation produces electric signal.Magnet that this Technology Need volume is bigger and metal lamellar body, cost is higher, location, rotation back is not accurate, is easy to generate error.
Summary of the invention
The technical matters that the present invention solves provides a kind of rotary position transducer that reduces cost, precisely feeds back position of rotation.
The present invention solves the technical scheme that its technical matters takes: a kind of rotary position transducer, main body is a housing, be provided with the driving wheel and the engaged wheel of engagement in the inside of housing, at the inner magnet that embeds of engaged wheel, driving wheel inside offers link slot, closely connect an axostylus axostyle by link slot, form sensor circuit by magnetic field and electronic component in the magnet corresponding position.
Control outside position of rotation in order to reach sensor type, described axostylus axostyle penetrates the outside at housing, and sensor internal includes electric capacity and Hall element.
For position of rotation is shown precisely, allow axostylus axostyle and driving wheel combine closely, the profile of described link slot is " D " type groove shape.
After adopting said structure, its advantage is: middle gear simplicity of design of the present invention is applied to industrial circle in a large number, technology maturation, reliable, the magnet design is not subject to outside axostylus axostyle, economically feasible, by the sensing control of Hall effect, make positioning of rotating more accurate.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the synoptic diagram of meshing gear among the present invention.
Among the figure: 1, housing 2, engaged wheel 3, driving wheel 3-1, link slot 4, axostylus axostyle 5, sensor circuit 5-1, electric capacity 5-2, Hall chip 6, magnet
Embodiment
A kind of rotary position transducer shown in Figure 1, main body is a housing 1, be provided with the driving wheel 3 and the engaged wheel 2 of engagement in the inside of housing 1, at the engaged wheel 2 inner magnet 6 that embed, driving wheel 3 inside offer link slot 3-1, closely connect an axostylus axostyle 4 by link slot 3-1, form sensor circuit 5 by magnetic field and electronic component in magnet 6 corresponding positions; Comprise electric capacity 5-1, Hall chip 5-2 in the sensor circuit 5, axostylus axostyle 4 penetrates in the outside of housing 1, reaches the effect that sensor type is controlled outside position of rotation.
In the meshing gear shown in Figure 2, the inside of engaged wheel 2 embeds magnet 6, forms loop inductance with electric capacity 5-1, Hall chip 5-2; The profile of link slot 3-1 is " D " type groove shape, and assurance axostylus axostyle 4 is combined closely with driving wheel 3, reaches the position of rotation accurate positioning.
Sensor circuit 5 is used to respond to the changes of magnetic field of the magnet 6 on the engaged wheel 2, pass through hall principle, export corresponding electric signal, engaged wheel 2 is used for device magnet 6, and meshes with driving wheel 3, drive magnet 6 rotations, produce changes of magnetic field, driving wheel 3 closely cooperates with outside axostylus axostyle 4, driven by outside axostylus axostyle 4, cooperate and drive driving wheel 3 and rotate the objective body that outside axostylus axostyle 4 will be surveyed for rotary position transducer.Outside axostylus axostyle 4 rotations drive that driving wheel 3 is corresponding makes rotation, driving wheel 3 passes to engaged wheel 2 with the positional information of rotation, thereby the magnetic field that causes the magnet 6 on the engaged wheel 2 to produce respective change, Hall chip 5-2 responds to this and changes the generation electric signal, and sensor promptly utilizes the electric signal of this variation to feed back the positional information of outside axostylus axostyle 4.

Claims (3)

1. rotary position transducer, main body is a housing (1), it is characterized in that: the driving wheel (3) and the engaged wheel (2) that are provided with engagement in the inside of housing (1), at the inner magnet (6) that embeds of engaged wheel (2), driving wheel (3) inside offers link slot (3-1), closely connect an axostylus axostyle (4) by link slot (3-1), form sensor circuit (5) by magnetic field and electronic component in magnet (6) corresponding position.
2. rotary position transducer according to claim 1 is characterized in that: the profile of described link slot (3-1) is " D " type groove shape.
3. rotary position transducer according to claim 1 is characterized in that: described axostylus axostyle (4) penetrates the outside in housing (1).
CN2011100280460A 2011-01-26 2011-01-26 Rotary position sensor Pending CN102175271A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011100280460A CN102175271A (en) 2011-01-26 2011-01-26 Rotary position sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011100280460A CN102175271A (en) 2011-01-26 2011-01-26 Rotary position sensor

Publications (1)

Publication Number Publication Date
CN102175271A true CN102175271A (en) 2011-09-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011100280460A Pending CN102175271A (en) 2011-01-26 2011-01-26 Rotary position sensor

Country Status (1)

Country Link
CN (1) CN102175271A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103234565A (en) * 2013-04-23 2013-08-07 哈姆林电子(苏州)有限公司 Dual-Hall dual-output sensor
CN106160353A (en) * 2016-07-28 2016-11-23 芜湖莫森泰克汽车科技股份有限公司 Detachable electric slide drive mechanism motor hall signal structure

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1225419A2 (en) * 2001-01-18 2002-07-24 Niles Parts Co., Ltd. Rotational angle measuring apparatus
US20040059486A1 (en) * 2002-09-24 2004-03-25 Yazaki Corporation. Steering angle sensor for vehicle
CN101586940A (en) * 2008-05-20 2009-11-25 阿尔卑斯电气株式会社 Rotary angle detecting device
CN101706250A (en) * 2009-09-22 2010-05-12 张永生 Absolute intersection angle measuring device with large scale and high accuracy
CN201517919U (en) * 2009-07-08 2010-06-30 南京奥联汽车电子电器有限公司 Rotation angle measuring mechanism with Hall integrated circuit
CN202032995U (en) * 2011-01-26 2011-11-09 哈姆林电子(苏州)有限公司 Rotary position sensor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1225419A2 (en) * 2001-01-18 2002-07-24 Niles Parts Co., Ltd. Rotational angle measuring apparatus
US20040059486A1 (en) * 2002-09-24 2004-03-25 Yazaki Corporation. Steering angle sensor for vehicle
CN101586940A (en) * 2008-05-20 2009-11-25 阿尔卑斯电气株式会社 Rotary angle detecting device
CN201517919U (en) * 2009-07-08 2010-06-30 南京奥联汽车电子电器有限公司 Rotation angle measuring mechanism with Hall integrated circuit
CN101706250A (en) * 2009-09-22 2010-05-12 张永生 Absolute intersection angle measuring device with large scale and high accuracy
CN202032995U (en) * 2011-01-26 2011-11-09 哈姆林电子(苏州)有限公司 Rotary position sensor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103234565A (en) * 2013-04-23 2013-08-07 哈姆林电子(苏州)有限公司 Dual-Hall dual-output sensor
CN106160353A (en) * 2016-07-28 2016-11-23 芜湖莫森泰克汽车科技股份有限公司 Detachable electric slide drive mechanism motor hall signal structure

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Application publication date: 20110907

RJ01 Rejection of invention patent application after publication