CN203608018U

CN203608018U - Swing driving device taking magnet and Hall sensor as detection elements

Info

Publication number: CN203608018U
Application number: CN201320733351.4U
Authority: CN
Inventors: 朱萱
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-11-19
Filing date: 2013-11-19
Publication date: 2014-05-21
Anticipated expiration: 2023-11-19

Abstract

The utility model discloses a swinging driving device taking a magnet and a Hall sensor as detection elements. The magnet is fixed on a swinging arm of a swinging device such as a swing, the Hall sensor is fixed on a driving motor case of the swing, and a surface of the Hall sensor is close to a surface of the magnet; when the swing swings, the Hall sensor is close to different positions of the surface of the magnet when the swing swings to different angles, different voltages are induced by the Hall sensor, and the voltages represent the positions of the swing. A swinging direction and a swinging peak point of the swing can be calculated by utilizing the absolute position of the swing, an output voltage or a push period of a driving motor can be adjusted by a driving controller of the swing according to the swinging direction or the swinging peak point, and flexible swinging adjustment of the swing is realized to adapt to use requirements of different users.

Description

A kind of oscillatory gearing mechanism using magnet and Hall element as detecting element

Technical field

The utility model relates to electric swinging device, a kind of oscillatory gearing mechanism using magnet and Hall element as detecting element.

Background technology

The driver schemes of existing electric swing, cradle, shaking table and rocking chair (hereinafter to be referred as swing), or can only detect the approximate location that swing swings, or detect the speed of swing and the relative position of swing, or the swaying direction of detection swing, or do not detect the swing of swing, all can not accurately detect the absolute position that swing swings.

Utility model content

For solving the problems of the technologies described above, the technical problems to be solved in the utility model is to provide a kind of oscillatory gearing mechanism using magnet and Hall element as detecting element.

The technical solution adopted in the utility model is:

Using magnet and Hall element as an oscillatory gearing mechanism for detecting element, be applied to electric swing device, comprising:

One is fixed on the magnet on electric swing device, and the magnetic field intensity of this magnet weakens gradually or strengthens from magnet one end to the other end;

One Hall element, for detection of the magnetic field intensity of described magnet and induce the voltage of corresponding magnetic field intensity;

One motor, swings for the swing arm that drives electric swing device;

One control circuit board, one input input of this control circuit board is connected with the output of Hall element, the output of this control circuit board is connected with motor, and this control circuit board regulates output or the rotation direction of motor for the induced voltage of controlling the start and stop of motor and detect according to Hall element.

It also comprises a gear box, and the power shaft of described gear box is fixedly connected with the output shaft of motor, and the output shaft of described gear box is vertical with the swing arm of electric swing device and be fixedly connected with.

The connecting portion of described swing arm and gearbox output shaft is a rotary body take gearbox output shaft as rotating shaft, described magnet is circular arc magnet, this circular arc magnet is fixed on described rotary body, and in the rotating shaft of the center of circle of circular arc magnet in rotary body, the surface of described Hall element and circular arc magnet approaches.

Described circular arc magnet is arranged on the top of rotary body, and described Hall element is positioned near circular arc magnet external arc or center of arc in the time that rotary body is static, and is fixed on gear box.

Described magnet is magnetite or the magnet magnetizing.

The beneficial effects of the utility model:

The utility model oscillatory gearing mechanism, using magnetite and Hall element as detecting element, is fixed on magnetite in the swing arm of the pendulous devices such as swing, and Hall element is fixed on above the CD-ROM drive motor case of swing, and magnetite surface is pressed close on the surface of Hall element; In the time that swing swings, the different angles that swing at swing, the diverse location on Hall element and magnetite surface is pressed close to, and Hall element induces different voltage, and voltage represents the residing position of swing.The absolute position that utilizes swing to swing can calculate the swaying direction of swing and swing summit, the driving governor of swing can or swing summit according to its swaying direction and regulate output voltage or the promotion cycle of drive motors, the flexible swinging to realize swing, is adapted to the user demand of different user.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.

Fig. 1 is the installation diagram of the utility model oscillatory gearing mechanism;

Fig. 2 is the magnetic field intensity model of magnetite;

Fig. 3 is the theory diagram of the utility model oscillatory gearing mechanism;

Fig. 4 is the rocking chair installation diagram of application the utility model oscillatory gearing mechanism;

Fig. 5 is the circuit diagram of Hall element voltage input single-chip microcomputer;

Fig. 6 is the oscillogram of Hall element voltage input single-chip microcomputer;

Fig. 7 is application the utility model oscillatory gearing mechanism workflow diagram.

Embodiment

Be the utility model as shown in Figure 1, Figure 3 using magnet and Hall element as the oscillatory gearing mechanism of detecting element, be applied to electric swing device, comprising:

One is fixed on the magnet 10 on electric swing device, and the magnetic field intensity of this magnet 10 weakens gradually or strengthens from magnet 10 one end to the other end, sees Fig. 2;

One Hall element 20, for detection of the magnetic field intensity of described magnet 10 and induce the voltage of corresponding magnetic field intensity B;

One motor 30, swings for the swing arm 40 that drives electric swing device;

One gear box 50, the power shaft of described gear box 50 is fixedly connected with the output shaft of motor 30, and the output shaft of described gear box 50 is vertical with the swing arm of electric swing device 40 and be fixedly connected with;

One control circuit board 60, the output of this control circuit board 60 is connected with motor 30, and this control circuit board 60 regulates output (promoting voltage, promotion time), rotation (promotion) direction of motor 30 for the induced voltage of controlling the start and stop of motor 30 and detect according to Hall element 20.

As shown in Figure 1, swing arm 40 and the connecting portion of gear box 50 output shafts are a rotary body 70 take gear box 50 output shafts as rotating shaft, described magnet 10 is circular arc magnet, and this magnet 10 is fixed on the outer surface at described rotary body 70 tops, and in the rotating shaft of the center of circle of circular arc magnet in rotary body 70; Described Hall element 20 is positioned near circular arc magnet external arc or center of arc in the time that rotary body 70 is static, and is fixed on gear box 50.

Wherein, magnetite or the magnet of the magnet 10 that the utility model oscillatory gearing mechanism adopts for magnetizing.

As shown in Figure 4, for the specific embodiment of application the utility model oscillatory gearing mechanism, electric rocking chair, this rocking chair has a bracing frame 100, one plate for sitting and leaning 200, two casings 300, two swing arms 40, and oscillatory gearing mechanism of the present utility model, two swing arms 40 lay respectively at the both sides of plate for sitting and leaning 200, wherein the two ends of a swing arm 40 connect respectively one end top axle company of plate for sitting and leaning 200 and bracing frame 100, the two ends of another swing arm 40 connect respectively the output shaft of plate for sitting and leaning 200 and gear box 50, two casings 300 are separately fixed at a left side for bracing frame 100, right-hand member top, wherein with the in-built motor 30 that is equipped with of casing 300 of magnet 10 place ends, gear box 50, control circuit board 60, the magnet 10 of the utility model oscillatory gearing mechanism is fixed on the outer surface at rotary body 70 tops of swing arm 40 one end, Hall element 20 approaches with the surface of circular arc magnet 10, and Hall element 20 is positioned at directly over circular arc magnet 10 center and is fixed on gear box 50.

The operation principle of the utility model oscillatory gearing mechanism is, work as rocking chair, when the swing arm of the pendulous devices such as swing swings, swing (take swing as example) swings and has different angles, in Hall element and swing arm, the diverse location on magnetite surface is pressed close to, Hall element induces different voltage and feeds back to the single-chip microcomputer of control circuit board, and voltage represents the residing position of swing, the absolute position that control circuit board just can utilize swing to swing can calculate the swaying direction of swing and swing summit, according to its swaying direction or swing summit and regulate output voltage or the promotion cycle of drive motors, the flexible swinging to realize swing, be adapted to the user demand of different user.

Circuit model while introducing Hall element voltage input single-chip microcomputer below, as shown in Figure 6, wherein:

A point is a square-wave signal, is sent by CPU;

B point is the signal of the A signal of ordering after capacitance-resistance filter (R104, C104);

C point is Hall element output voltage;

D point is the output signal after the voltage that compares B, C through comparator LM111;

Figure 6 shows that the oscillogram of Hall element voltage input single-chip microcomputer, in oscillogram, C1, C2 are the different voltages that C point regulates through potentiometer, D (C1) is the output waveform of comparator under C1 voltage, D (C2) is the output waveform of comparator under C2 voltage, the waveform width of the signal high potential of ordering with CPU scanning D, in actual applications, C point is under different voltage, the width value obtaining is different, and the width value that scanning obtains represents the position of swing.

As mentioned above, the absolute position that control circuit board can utilize swing to swing can calculate the swaying direction of swing and swing summit, to utilize swaying direction that the absolute position of swing judge swing as example, W(n) expression swing is in the position in n moment:

Work as W(n)-W(n-1) > 0, represent swing past+direction motion;

Work as W(n)-W(n-1) < 0, represent swing past-direction motion;

Work as W(n)-W(n-1)=0, represent that the swing direction of motion does not change;

From description above, we can judge according to the utility model oscillatory gearing mechanism the swaying direction of rocking equipment, introduce a utility model apply the workflow embodiment that judges swaying direction with this, see Fig. 7, comprise the following steps:

S1, start to start the utility model oscillatory gearing mechanism;

S2, initialization control circuit plate module, being written into the initial promotion cycle simultaneously, being written into that to set maximum voltage, be written into initial pushing direction, initialization promotion time be 0, initial voltage is set is a minimum voltage;

S3, judge whether the promotion time reach 3/4 of the promotion cycle, if so, enter step S42, otherwise enter step S41;

S41, judge whether actual promotion voltage reaches maximum voltage, if voltage keeps maximum voltage, otherwise voltage increases a unit; Enter S5;

S42, voltage drop to minimum voltage; Enter S5;

S5, promotion time+1;

S6, judge whether swaying direction reverses, if enter S7, otherwise, return to S3;

The pushing direction of S7, change motor;

S8, to get the current promotion time be the new promotion cycle;

S9, promotion time zero setting;

S10, read new maximum voltage, return to S3.

As mentioned above, this workflow has been implemented a kind of application model of the utility model oscillatory gearing mechanism, utilize swaying direction to implement the concrete control of drive unit, initially promote (smooth starting) with small voltage, progressively strengthen again voltage, reach and be reduced to again sometime minimum voltage, realize the smooth transition of inverted wobbles, when reversion, change motor pushing direction, implement the promotion cycle of other direction, the promotion cycle adopts the last time span that promotes, by the circulation in multiple cycles, can find the promotion cycle with pendulous device natural oscillation frequency match.

The foregoing is only preferential execution mode of the present utility model, the utility model is not limited to above-mentioned execution mode, as long as within the technical scheme that realizes the utility model object with basic identical means all belongs to protection range of the present utility model.

Claims

1. using magnet and Hall element as an oscillatory gearing mechanism for detecting element, be applied to electric swing device, it is characterized in that comprising:

One motor, swings for the swing arm that drives electric swing device;

2. a kind of oscillatory gearing mechanism using magnet and Hall element as detecting element according to claim 1, it is characterized in that: it also comprises a gear box, the power shaft of described gear box is fixedly connected with the output shaft of motor, and the output shaft of described gear box is vertical with the swing arm of electric swing device and be fixedly connected with.

3. a kind of oscillatory gearing mechanism using magnet and Hall element as detecting element according to claim 2, it is characterized in that: the connecting portion of described swing arm and gearbox output shaft is a rotary body take gearbox output shaft as rotating shaft, described magnet is circular arc magnet, this circular arc magnet is fixed on described rotary body, and in the rotating shaft of the center of circle of circular arc magnet in rotary body, the surface of described Hall element and circular arc magnet approaches.

4. a kind of oscillatory gearing mechanism using magnet and Hall element as detecting element according to claim 3, it is characterized in that: described Hall element is positioned near circular arc magnet external arc or center of arc in the time that rotary body is static, and is fixed on gear box.

5. according to claim 1 a kind of using magnet and Hall element as the oscillatory gearing mechanism of detecting element, it is characterized in that: described magnet is magnetite or the magnet magnetizing.