CN201438117U

CN201438117U - Coder

Info

Publication number: CN201438117U
Application number: CN200920071530XU
Authority: CN
Inventors: 钱敏; 方华南
Original assignee: Shanghai Jizhi Electronic Technology Co Ltd
Current assignee: Zhejiang Hulong Motor Co., Ltd.
Priority date: 2009-05-04
Filing date: 2009-05-04
Publication date: 2010-04-14
Anticipated expiration: 2019-05-04

Abstract

The utility model discloses a coder, which comprises a coder shell, a coder PCBA is arranged in the coder shell, and is provided with a magnetic Hall sensor, a photoelectric incremental sensor and a reflection type photo sensor, and the magnetic Hall sensor is connected with a magnetizer handwheel; the magnetic Hall sensor is connected with a bipolar magnetizer; and the photoelectric incremental sensor and the reflection type photo sensor are respectively connected with a grating sheet. Because the utility model integrates various signals on the PCBA, the cost is saved, and mounting is convenient; the adopted magnetic Hall sensor is superior to the photo sensor in terms of stability and consistency, and the integration degree of the coder PCB is greatly increased; meanwhile, the design of other subsystems is also simplified, and the stability and consistency of initial angle reset signals are enhanced; and the utility model simplifies the technique, reduces the cost and enhances the stability of products.

Description

A kind of scrambler

Technical field:

The utility model relates to the scrambler field, and is particularly related to a kind of 360 line scramblers.

Background technology:

The scrambler that existing market is used for Electromotor of Industrial Sewing Machine has

Characteristics: UP, DN upper and lower needle stop signal independently go out scrambler, are independently produced by two sensors outside motor; The HALL signal adopts optical sensor to produce, and the problem of optical sensor maximum is: volume is big, and stability, consistance are poor; Be exactly that speed pickup adopts photoelectricity incremental transducer induction lenticular lenses to finish in addition; Motor initial angle reset signal adopts HALLA to design, and makes the reset signal design become complicated, and stability and consistance are poor.

In sum, we need make a kind of novel scrambler, to solve the above defective of existing encoder.

The utility model content:

The purpose of this utility model is to provide a kind of scrambler, with The volume that existing encoder has is big, stability, consistance are poor, and defective such as product instability.

To achieve these goals, the technical solution of the utility model is:

A kind of scrambler, comprise the scrambler shell, be provided with scrambler PCBA in the described scrambler shell, described scrambler PCBA is provided with a magnetic Hall element, a photoelectricity increment sensor, a reflective optical sensor, and described magnetic Hall element connects the body handwheel that magnetizes; The bipolarity that the connects described magnetic Hall element body that magnetizes; Described photoelectricity increment sensor, described reflective optical sensor connect a lenticular lenses respectively.

The described body handwheel that magnetizes is one the upper and lower body handwheel that magnetizes that stops the pin signal to be housed.

Described lenticular lenses is 360 line grating sheets.

Compare with existing encoder, the utlity model has following significant advantage:

(1) integrate integrated UP, DN and stop the pin signal, rotor HALLA, B, C signal and signals such as ENCA, B are on a PCBA.Save cost, be convenient to install.

(2) initial angle position HALLA, B, C signal are produced by the magnetic Hall element, are better than optical sensor on stability, consistance, and mechanical dimension nearly is 1/10th of optical sensor, have increased the integrated level of scrambler PCB greatly.

(3) motor initial angle reset signal ENC Z independently produces,

Change the design of other subsystem, improve the stability and the consistance of initial angle reset signal simultaneously.

(4) initiation parameter that needs of servomotor space vector control is finished and is remembered by software automatic test, has decontroled the harsh requirement to the electric machine rotor position consistency, has simplified technology, has reduced cost, has improved the stability of product simultaneously.

(5) the original Machine Design of scrambler PCBA and shell is convenient to install, and it is attractive in appearance to optimize head.

Beneficial effect: a kind of scrambler of the utility model, integrate integrated various signal on a PCBA, save cost, be convenient to install; Adopt the magnetic Hall element, on stability, consistance, be better than optical sensor, increased the integrated level of scrambler PCB greatly; Also simplify simultaneously the design of other subsystem, improved the stability and the consistance of initial angle reset signal; The utility model has been simplified technology, has been reduced cost, has improved the stability of product simultaneously.

Description of drawings:

Further specify the utility model below in conjunction with the drawings and specific embodiments.

Fig. 1 is a kind of scrambler internal circuit of the utility model module frame chart.

Embodiment:

For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.

With reference to figure 1, comprise among the figure: scrambler PCBA1, coding

CBA1 is provided with a magnetic Hall element 21, a photoelectricity increment sensor 22, a reflective optical sensor 23.Magnetic Hall element 21 connects the body handwheel 211 that magnetizes, and the body handwheel 211 that magnetizes is one the upper and lower body handwheel that magnetizes that stops the pin signal to be housed, and the body handwheel 211 that magnetizes is used to produce UP, DN and stops the pin signal.

The bipolarity that connects the magnetic Hall element body 222 that magnetizes is used to produce HALL-A, HALL-B, HALL-C signal; Photoelectricity increment sensor 22, reflective optical sensor 23 connect a lenticular lenses 24 respectively, and lenticular lenses 24 is 360 line grating sheets, are used to produce ENC-A, ENC-B and ENC-Z signal.

360 line scramblers in the utility model are integrated, and UP, DN stop the pin signal, HALLA, B, C signal and ENCA, B, Z signal etc.UP, DN stop pin signal and initial angle position HALLA, B, the C signal produces by the magnetic Hall element.UP, DN upper and lower needle stop signal are used for determining the position of motor crankshaft; HALLA, B, C signal power on and determine the position of rotor.The lenticular lenses that ENCA, B signal are responded to 360 lines by the photoelectricity incremental transducer produces, and can determine motor rotor position and motor speed; The ENC Z signal of design is produced by reflective optical sensor separately, is used for the zero clearing of motor initial angle, guarantees the stability and the consistance of motor initial angle reset signal.The initiation parameter that servomotor space vector control needs is finished and is remembered by software automatic test, has decontroled the harsh requirement to the electric machine rotor position consistency, has simplified technology, has reduced cost, has improved the stability of product simultaneously.

The installation of the utility model 360 line scramblers divides following three

Suddenly.The first step: lenticular lenses is installed, it is fixed on the motor crankshaft, the upper and lower pin signal mechanical location of body on handwheel that magnetize that stop of 360 line scramblers and handwheel and the rough UP of determining and DN then is installed; Second step: the scrambler initial angle is adjusted; The 3rd step: finely tune the upper and lower pin position of stopping, realize by finely tuning upper and lower the magnetize mechanical location of body of pin signal that stops.

More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the instructions just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. scrambler, comprise the scrambler shell, be provided with scrambler PCBA in the described scrambler shell, it is characterized in that, described scrambler PCBA is provided with a magnetic Hall element, a photoelectricity increment sensor, a reflective optical sensor, and described magnetic Hall element connects the body handwheel that magnetizes; The bipolarity that the connects described magnetic Hall element body that magnetizes; Described photoelectricity increment sensor, described reflective optical sensor connect a lenticular lenses respectively.

2. a kind of scrambler according to claim 1 is characterized in that, the described body handwheel that magnetizes is one the upper and lower body handwheel that magnetizes that stops the pin signal to be housed.

3. a kind of scrambler according to claim 1 is characterized in that, described lenticular lenses is 360 line grating sheets.