CN203024728U - 360-degree angle transducer - Google Patents
360-degree angle transducer Download PDFInfo
- Publication number
- CN203024728U CN203024728U CN 201320036636 CN201320036636U CN203024728U CN 203024728 U CN203024728 U CN 203024728U CN 201320036636 CN201320036636 CN 201320036636 CN 201320036636 U CN201320036636 U CN 201320036636U CN 203024728 U CN203024728 U CN 203024728U
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- China
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- permanent magnet
- stator
- rotor assembly
- rotor
- assembly
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The embodiment of the utility model discloses a 360-degree angle transducer. The 360-degree angle transducer comprises a rotor assembly and a stator assembly which is matched with the rotor assembly in a non-contact manner; the rotor assembly comprises a stator nut (102) and an inductive PCB (Printed circuit board) board assembly (104) which is fixedly connected with the stator nut (102); the rotor assembly comprises a rotor (101) and a permanent magnet (103); the permanent magnet is adhered close to one end of the stator assembly in an injection molding manner; and the permanent magnet (103) is divided into a left pole and a right pole, namely, an N (North) pole and an S (South) pole, along a circle diameter line direction. The 360-degree angle transducer provided by the utility model is an improved magnetic inductive and non-contact type 360-degree angle sensor which is simple in structure and is applicable to EPS (Electric Power Storage) systems of various types.
Description
Technical field
The utility model belongs to sensor technical field, relates to especially a kind of 360 degree angular transducers.
Background technology
Electric power steering (Electric Power Steering, EPS) due to car load use and control performance lifting, system needs an automatic aligning function, after being driver's steering wheel rotation, the angle of angular transducer perception driver steering wheel rotation, the acquisition angles signal offers controller (Electric Control Unit, ECU), controller makes bearing circle can independently get back to positive meta, thereby improves the driver-operated comfortableness to Hui Zhengli of EPS system's output.Thereby angular transducer is one of important spare part of EPS system function optimization.
The research and development of the angular transducer of both at home and abroad EPS being used are being carried out always.The gear type angle sensor that mainly contains BOSCH, continent of prior art adopts the nylon gear Meshing Pair, has wearing and tearing in use procedure, and subsequent conditioning circuit is processed comparatively complicated.Non-contacting sensor is drawn in the sea, and high for the requirement of processing installation accuracy, cost is also higher.
According to the request for utilization of EPS system, design a simple in structurely, to process easy for installationly, technique is comparatively simple and angular transducer that cost is not high is very necessary.
The utility model content
For addressing the above problem, the purpose of this utility model is to provide a kind of 360 degree sensors, and the angular transducer of 360 ° of scopes of the simple magnetic inductive noncontact of improved structure is provided, and is applicable in the EPS of each type system.
For achieving the above object, the technical solution of the utility model is:
A kind of 360 degree angular transducers, comprise rotor assembly and the stator module that matches with described rotor assembly noncontact, described stator module comprises stator nut and the induction pcb board assembly that is fixedly connected with the stator nut, described rotor assembly comprises a bonding permanent magnet of end injection moulding of rotor and close described stator module, and described permanent magnet is divided into the two poles of the earth, left and right along circular diameter line direction by the N utmost point and the S utmost point.
Preferably, described induction pcb board assembly comprises the Hall element chip, and described Hall element chip is fixed in stator nut center.
Preferably, described stator module and rotor assembly are fixed mode and are, described Hall element chip is right against described permanent magnet setting, and both are relatively complete and do not contact.
Compared with prior art, the utlity model has following beneficial effect:
(1) angular transducer adopts contactless structure setting, in serviceable life much larger than complete machine serviceable life, can because wearing and tearing cause sensor drift, not affect the angle signal collection;
(2) technique, simple in structure, and without complicated subsequent process circuit;
(3) set up the output signal corresponding relation according to the magnetic field of actual sensed, therefore less demanding to the parts various process parameters.
Description of drawings
Fig. 1 is the structural representation of the 360 degree angular transducers of the utility model embodiment;
Fig. 2 is the permanent magnet and the assembling stationary state position relationship schematic diagram of responding to the pcb board assembly of the 360 degree angular transducers of the utility model embodiment;
Fig. 3 is the permanent magnet and the assembling rotary state position relationship schematic diagram of responding to the pcb board assembly of the 360 degree angular transducers of the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
On the contrary, the utility model contain any by claim definition make on marrow of the present utility model and scope substitute, modification, equivalent method and scheme.Further, in order to make the public, the utility model is had a better understanding, in hereinafter details of the present utility model being described, detailed some specific detail sections of having described.Do not have for a person skilled in the art the description of these detail sections can understand the utility model fully yet.
With reference to figure 1, be depicted as the structural representation of the 360 degree angular transducers of the utility model embodiment, it comprises rotor assembly and the stator module that matches with the rotor assembly noncontact, stator module comprises stator nut 102 and the induction pcb board assembly 104 that is fixedly connected with stator nut 102, rotor assembly comprises the bonding permanent magnet 103 of an end injection moulding of rotor 101 and close stator module, and permanent magnet 103 is divided into the two poles of the earth, left and right along circular diameter line direction by the N utmost point and the S utmost point.In concrete application example, induction pcb board assembly 104 comprises the Hall element chip, and the Hall element chip is fixed in stator nut 102 centers.Stator module and rotor assembly are fixed mode, and the Hall element chip is right against described permanent magnet 103 and arranges, and both are relatively complete and do not contact.
Referring to Fig. 2, be depicted as permanent magnet 103 and the assembling stationary state position relationship schematic diagram of responding to pcb board assembly 104, there is no the medium of middle magnetic conduction under this structure, the permanent magnet 103 that end directly occurs from magnetic field is connected to the induction pcb board assembly 104 of inductive terminations, so there is not the problem of mechanical zero.After install the optional position, by the distribution of change induction medium is set, realize the zero-bit installation.The magnetic field of responding to 104 inductions of pcb board assembly this moment is 0 relatively.
Referring to Fig. 3, when permanent magnet 103 turned over certain angle along with rotor 101, the left and right Distribution of Magnetic Field of induction pcb board assembly 104 changed, by the change of flux of induction pcb board assembly 104, poor with assembling original position contrast formation magnetic flux, the magnitude of voltage of responding at last 104 outputs of pcb board assembly changes.The magnetic field that induction pcb board assembly 104 is sensed be directly proportional to the angle that rotor turns over (in the angle of ± 180 °), namely turn over angle larger, the magnetic field of sensing is stronger, thereby has set up by the angular relationship of induction pcb board assembly 104 magnetic field sizes with rotor.When the rotor assembly switched in opposite, opposite with said process by the magnetic field of induction pcb board assembly 104.Therefore obtaining output signal (voltage U) is directly proportional to the angle of rotating: U=2.5V ± k θ, and wherein k is the voltage of demarcation and the slope of angle, θ is angle changing deg.
Thus, this 360 degree angular transducer can be used as EPS performance optimization non-contact angle sensor used, and is in 360 degree scopes, different according to the magnetic field size and Orientation that induction pcb board assembly is sensed, draw the angle and direction that rotor rotates, realize the function of angular transducer.
The above is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. spend angular transducer for one kind 360, it is characterized in that, comprise rotor assembly and the stator module that matches with described rotor assembly noncontact, described stator module comprises stator nut (102) and the induction pcb board assembly (104) that is fixedly connected with stator nut (102), described rotor assembly comprises the bonding permanent magnet (103) of an end injection moulding of rotor (101) and close described stator module, and described permanent magnet (103) is divided into the two poles of the earth, left and right along circular diameter line direction by the N utmost point and the S utmost point.
2. 360 degree angular transducers according to claim 1, is characterized in that, described induction pcb board assembly (104) comprises the Hall element chip, and described Hall element chip is fixed in stator nut (102) center.
3. 360 degree angular transducers according to claim 2, is characterized in that, described stator module and rotor assembly are fixed mode and are, described Hall element chip is right against described permanent magnet (103) and arranges, and both are relatively complete and do not contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320036636 CN203024728U (en) | 2013-01-24 | 2013-01-24 | 360-degree angle transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320036636 CN203024728U (en) | 2013-01-24 | 2013-01-24 | 360-degree angle transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203024728U true CN203024728U (en) | 2013-06-26 |
Family
ID=48648707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320036636 Expired - Lifetime CN203024728U (en) | 2013-01-24 | 2013-01-24 | 360-degree angle transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203024728U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114858051A (en) * | 2021-05-08 | 2022-08-05 | 黑龙江大学 | Angle sensor and manufacturing process thereof |
-
2013
- 2013-01-24 CN CN 201320036636 patent/CN203024728U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114858051A (en) * | 2021-05-08 | 2022-08-05 | 黑龙江大学 | Angle sensor and manufacturing process thereof |
| CN114858051B (en) * | 2021-05-08 | 2024-02-27 | 黑龙江大学 | Angle sensor and manufacturing process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130626 |
|
| CX01 | Expiry of patent term |