CN210258681U - Steering gear box power-assisted structure on bassinet - Google Patents
Steering gear box power-assisted structure on bassinet Download PDFInfo
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- CN210258681U CN210258681U CN201920759766.6U CN201920759766U CN210258681U CN 210258681 U CN210258681 U CN 210258681U CN 201920759766 U CN201920759766 U CN 201920759766U CN 210258681 U CN210258681 U CN 210258681U
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- hall sensor
- gear box
- steering gear
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Abstract
The utility model discloses a steering gear case helping hand structure on bassinet, including the gear case shell, the rotation axis, turn to the motor, steering gear, hall sensor and magnet, turn to motor and rotation axis installation on the gear case shell, the steering gear teeth are installed on the gear case shell through the rotation axis, the steering gear connects the steering iron frame, the steering iron frame is connected to the steering iron frame, the gear case shell, the steering wheel is installed on the bassinet shell, magnet installation is on steering gear, hall sensor installs on the gear case shell, can respond to the magnetic field that magnet produced, and produce the induced electromotive force when magnet moves; the Hall sensor is in contact with the magnet and can move relatively. The utility model relates to a steering gear box helping hand structure on bassinet through the corresponding magnet and the hall response electron that are provided with, through magnetic field control drive motor's direction of operation and state, acts on the steering spindle of bassinet and turns to the support, helps it to turn to and automatic re-setting.
Description
Technical Field
The utility model belongs to the technical field of the bassinet technique and specifically relates to a steering gear box helping hand structure on bassinet.
Background
At present: in order to realize the remote control steering function, the electric toy car for children sold in the market is connected with a driving motor on a steering wheel to drive a steering shaft to turn left and right; however, the manual driving requires a load of resistance in the directions of the motor and the gear, and is particularly laborious for children. And has no steering automatic reset function.
SUMMERY OF THE UTILITY MODEL
To above problem, the utility model provides a steering gear box helping hand structure on bassinet both between drive gear and the shell in the steering gear box of steering motor installation, installs corresponding magnet and hall response electron respectively, through magnetic field control drive motor's direction of operation and state, acts on the steering spindle and the steering support of bassinet, helps it to turn to and automatic re-setting.
In order to solve the technical problem, the purpose of the utility model is to realize like this:
the utility model relates to a steering gear case helping hand structure on bassinet, including gear case shell, rotation axis, steering motor, steering gear, hall sensor and magnet, steering motor and rotation axis install on the gear case shell, the steering gear teeth are installed on the gear case shell through the rotation axis, steering gear connects the steering iron frame, the steering iron frame connects the directive wheel, steering iron frame, gear case shell, directive wheel are installed on the bassinet shell, magnet install on steering gear, hall sensor installs on the gear case shell, can respond to the magnetic field that magnet produced to produce induced electromotive force when magnet moves; the Hall sensor is in contact with the magnet and can move relatively.
Preferably, the magnet is arc-shaped, and the cross section of the magnet is rectangular.
Preferably, the hall sensor is located outside the arc, and when the steering wheel is located right ahead, the hall sensor is located at the center of the arc magnet.
Preferably, the hall sensor is located on the inner side of the arc, and when the steering wheel is located right in front, the hall sensor is located at the center of the arc magnet.
Preferably, the number of the hall sensors is 2, and when the steering wheel is positioned right in front, the hall sensors are positioned at both ends of the magnet.
Preferably, the number of the Hall sensors is 3, the Hall sensors are positioned on the outer side of the arc and positioned at five equal parts of the arc; when the steering wheel is positioned right ahead, the Hall sensor in the middle is positioned in the arc center position.
Preferably, the number of the magnets is two, and a gap is formed in the middle of each magnet; when the steering wheel is positioned right ahead, the Hall sensor is positioned at the gap position of the two magnets.
Preferably, the magnets are in a block shape and are arranged in an arc shape, and the number of the magnets is 3 or 5; the Hall sensor is positioned below the magnet.
The utility model has the advantages that: the utility model relates to a steering gear box helping hand structure on bassinet through the corresponding magnet and the hall response electron that are provided with, through magnetic field control drive motor's direction of operation and state, acts on the steering spindle and the steering support of bassinet, helps it to turn to and automatic re-setting, provides the helping hand.
Drawings
FIG. 1 is a schematic structural diagram of the first embodiment;
FIG. 2 is a schematic structural view of the second embodiment;
FIG. 3 is a schematic structural view of the third embodiment;
FIG. 4 is a schematic structural view of the fourth embodiment;
FIG. 5 is a schematic structural view of the fifth embodiment;
FIG. 6 is a schematic structural view of the sixth embodiment;
FIG. 7 is a schematic structural view of the seventh embodiment;
fig. 8 is a control circuit diagram of a steering gear box with a hall sensor.
The designations in the figures illustrate the following: 1-a gearbox housing; 2-a steering motor; 3-a rotating shaft; 4-a hall sensor; 5-a steering gear; 6-a magnet; 7-bogie.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Example one
The present embodiment will be described in detail with reference to fig. 1 and 8. The power-assisted structure of the steering gear box on the baby carriage comprises a gear box shell, a rotating shaft, a steering motor, a steering gear, a Hall sensor and a magnet. The electromotive force induced by the hall sensor changes with the change of the magnetic field intensity, and the stronger the magnetic field, the higher the electromotive force, and the weaker the magnetic field, the lower the electromotive force. The magnets used are permanent magnets. The Hall sensor 4 is provided with three connecting columns, one connecting column is connected with a power positive plate, the other connecting column is grounded, and the other connecting column is a signal output end.
A corresponding magnet and a Hall sensor are arranged between a steering wheel and a steering shaft of a vehicle body on the baby carriage, a corresponding magnet 6 and a Hall sensor 4 are arranged between a steering gear 5 and a gear box shell 1, the gear box shell 1 is fixed on the vehicle body, and the steering gear 5 is connected with the steering shaft and a steering wheel. Such as: the magnets are arranged on a steering wheel and a steering gear 5, and a steering shaft of the vehicle body and a gear box shell 1 are respectively provided with two Hall sensors which correspond to the steering wheel and the steering gear 5; when the steering wheel is turned, the magnetic field on the steering wheel moves, and the inductive potential U1 obtained by the Hall sensor on the corresponding steering shaft. When the position of the magnet of the steering wheel and the hall sensor on the steering shaft is fixed, it is possible to indicate the angle by which the steering wheel is turned by the magnitude of the induced electromotive force. The electric power steering device comprises a gear box shell 1, a Hall sensor, a main control microprocessor unit, a steering motor 2, a steering assisting unit and a control unit, wherein the Hall sensor on the gear box shell 1 obtains an electric power response electromotive force U2 in a magnetic field of a steering gear 5, the Hall sensor on the gear box shell 1 obtains an induced electromotive force U2 in the magnetic field of the steering gear 5 to indicate the rotating angle of the Hall sensor 5, the main control microprocessor unit collects, gathers and compares the induced electromotive force U2 to obtain the angles indicated by U1 and U2, and drives the steering motor 2 to rotate in a corresponding direction to perform steering assisting, and when the angles corresponding to the induced electromotive forces obtained by the two Hall sensors 4 are the same, the main.
The steering motor and the rotating shaft are arranged on the shell of the gear box, the steering gear teeth are arranged on the shell of the gear box through the rotating shaft, the steering gear is connected with the steering iron frame, the steering iron frame is connected with the steering wheel, and the steering iron frame, the shell of the gear box and the steering wheel are arranged on the shell of the baby carrier. The magnet is arranged on the steering gear, the Hall sensor is arranged on the shell of the gear box, and can sense the magnetic field generated by the magnet and generate induced electromotive force when the magnet moves. The Hall sensor is in contact with the magnet and can move relatively.
When the baby carriage is driven by hand or remote control to steer, the steering support and the steering gear rotate by taking the rotating shaft as the center of a circle to drive the magnet to move by taking the rotating shaft core as a circular point, when the magnetic field of the magnet acts on the Hall sensor, the sensing signal of the Hall sensor changes the working state of the steering motor, and the steering motor drives the steering gear to drive the steering shaft to rotate in the direction corresponding to the steering shaft, so that the functions of steering assistance and automatic correction are performed.
Before the hall sensor 4 and the magnet 6 are installed, the hall sensor 4 needs to be tested to obtain the electromotive force variation induced by the hall sensor 4 in the magnetic field of the movement of the magnet 6. When the buggy turns in actual operation, the magnet 6 moves and the hall sensor 4 handles the stationary state. The movement of the magnet 6 changes the magnetic field formed by the magnet, so that the hall sensor 4 generates an induced electromotive force U2, and the induced electromotive force U2 corresponds to a steering angle. The steering angle corresponding to the induced electromotive force U2 generated by the Hall sensor 4 in the magnetic field is compared with the signal stored by the main control microprocessor unit, and the main control microprocessor unit judges the position of the Hall sensor relative to the magnet to change the working state of the steering motor. The electric potential signal obtained in the main control microprocessor unit is the steering angle corresponding to the induced electric potential U1 obtained by the Hall sensor on the corresponding steering shaft when the magnetic field on the steering wheel moves. The main control microprocessor unit compares the steering angles corresponding to the U1 and the U2, and controls the steering motor 2 to drive the steering gear 5 to drive the steering shaft to rotate in the corresponding direction, so that the power assisting function is realized.
In the present embodiment, the magnet 6 has an arc shape and a rectangular cross section. The hall sensor 4 is located in the outer side of the arc, and when the steering wheel is located right ahead, the hall sensor is located in the center of the arc magnet. In this embodiment, the angle of the arc is 120 °.
As shown in fig. 8, the control circuit diagram of the steering gear box with the hall sensor includes a main control micro-processing unit, a gear control unit, a 2.4G high-frequency communication unit, a motor driving unit, a motor speed control input unit, a steering control input unit, a power management unit and a steering control driving unit. In the present embodiment, the steering control input unit includes a steering wheel potentiometer, i.e., a steering wheel is turned by rotating the steering wheel, and the direction and angle of the steering can be measured. Furthermore, the steering control input unit can also control the steering through a remote controller, and the steering direction and angle of the remote controller are measured. And the angle value is transmitted to the main control micro-processing unit. The circuit diagram and connection relationship of the above units are shown in fig. 8.
The magnet 6 is fixed on the steering gear 5, the Hall sensor 4 is fixed on the gear box shell 1 and is tightly attached to the magnet 6, the steering gear 5 rotates, the magnet 6 moves to generate a moving magnetic field, the Hall sensor 4 is located in the moving magnetic field to obtain steering angles corresponding to different induced potentials U1, and the steering angles are compared with data stored in the main control microprocessor unit to obtain the physical position of the Hall sensor 4, so that the working state of the steering motor 2 is changed.
The induced electromotive force U2 is obtained by measuring different positions of the hall sensor used in the magnetic field formed by the permanent magnet used when mounting. The distance between the Hall sensor and the surface of the magnet is not more than 10mm, specifically 1 mm. For example, in the present embodiment, the magnet 6 used is an N42 permanent magnet. The N pole of the magnet 6 is located at the right end and the S pole is located at the left end. The measured induced electromotive force of the hall sensor 4 at the N pole of the permanent magnet is 1.8V, the induced electromotive force at the O point at the intermediate position is 1.4V, the induced electromotive force at the S pole position is 0.8V, and the angle position corresponding to the induced electromotive force with the level difference of 0.1V is recorded to the main control micro-processing unit. For example, the steering wheel is moved to drive the steering support and the steering gear to rotate, so that the magnet moves, the magnetic field moves, the potential difference obtained by the Hall electron is 1.2V, the data in the main control micro-processing unit is compared, the potential difference is between 1.4V at the middle point O and 0.8 of the maximum right-turning position, and when the O point at the middle point of the magnetic field corresponds to the Hall sensor, the induced potential difference is 1.4V.
The electric potential signal obtained in the main control microprocessor unit is the steering angle corresponding to the induced electric potential U1 obtained by the Hall sensor on the corresponding steering shaft when the magnetic field on the steering wheel moves. And comparing the steering angles corresponding to the U1 and the U2, and driving the steering motor 5 to rotate by the main control microprocessor unit through the steering control driving unit to assist the steering of the steering wheel.
Example two
Referring to fig. 2, the power assisting structure of the steering gear box of the stroller according to the present embodiment is different from the first embodiment in that: the hall sensor 4 is located on the outer side of the arc, and when the steering wheel is located right ahead, the hall sensor 4 is located at the center of the arc magnet 6. In this embodiment, it is also necessary to locate the hall sensor below the magnet, and when the magnet rotates, the angle corresponding to the induced electromotive force U2 of the hall sensor is matched with the steering angle corresponding to U1 stored in the main control microprocessor unit. And comparing the steering angles corresponding to the U1 and the U2, and driving the steering motor 5 to rotate by the main control microprocessor unit through the steering control driving unit to assist the steering of the steering wheel.
EXAMPLE III
Referring to fig. 3, the power assisting structure of the steering gear box of the stroller according to the present embodiment is different from the first embodiment in that: and 2 Hall sensors 4 are provided. When the steered wheels are positioned right in front, and the hall sensors 4 are positioned at both ends of the magnet 6. The Hall sensors 4 at two ends of the arc-shaped magnet 6 are respectively tested to record steering angles corresponding to induced electromotive forces of the two Hall sensors when the magnet is from the leftmost position to the rightmost position, the steering angles corresponding to the induced electromotive forces are compared with the steering angles corresponding to the U1 stored in the main control microprocessor unit, and the main control microprocessor unit drives the steering motor 5 to rotate through the steering control driving unit to assist steering of a steering wheel of the main control microprocessor unit.
Example four
Referring to fig. 4, the power assisting structure of the steering gear box of the stroller according to the present embodiment is different from the first embodiment in that: the number of the magnets 6 is two, and a gap is arranged in the middle of the magnets 6. When the steering wheel is positioned right in front, the hall sensor 4 is positioned at the gap between the two magnets 6. In this embodiment, when the hall sensor 4 needs to be placed at the corresponding position, when the two magnets 6 rotate, and when the magnets rotate, the induced electromotive force U2 of the hall sensor corresponds to the angle, and the angle is compared with the steering angle corresponding to U1 stored in the main control microprocessor unit. And comparing the steering angles corresponding to the U1 and the U2, and driving the steering motor 5 to rotate by the main control microprocessor unit through the steering control driving unit to assist the steering of the steering wheel.
EXAMPLE five
Referring to fig. 5, the power assisting structure of the steering gear box of the stroller according to the present embodiment is different from the first embodiment in that: the number of the Hall sensors 4 is 3, and the Hall sensors are positioned on the outer side of the arc-shaped magnet 6 and positioned at the five equal parts of the arc. When the steering wheel is positioned right ahead, the hall sensor 4 in the middle is positioned at the arc center position. In the present embodiment, the three hall sensors 4 are located at the position of the fifth bisector of the arc magnet, and are located at the three middle positions, and the hall sensors 4 are not provided at the two ends of the arc magnet 6. When the hall sensors 4 are arranged at the corresponding positions, the signal output ends of the three hall sensors 4 and the main control microprocessor unit transmit signals to the main control microprocessor unit, and the steering angle corresponding to the signals and the steering angle corresponding to the U1 stored in the main control microprocessor unit are adjusted. And comparing the steering angles corresponding to the U1 and the U2, and driving the steering motor 5 to rotate by the main control microprocessor unit through the steering control driving unit to assist the steering of the steering wheel.
EXAMPLE six
With reference to fig. 6, the power assisting structure of the steering gear box of the stroller according to the present embodiment is different from the first embodiment in that the magnets 6 are in a block shape and are arranged in an arc shape, and the number of the magnets is 3 or 5; when the steered wheels are positioned right in front, the hall sensor 4 is positioned below the intermediate magnet 6. After the positions of the hall sensors 4 and the magnets 6 are installed, when the magnets 6 move to the positions of the hall sensors 4 in the moving process of the magnets 6, the induced electromotive force of the hall sensors 4 is stored in the main control microprocessor unit, and the steering angle corresponding to the signal is compared with the steering angle corresponding to the U1 stored in the main control microprocessor unit. And comparing the steering angles corresponding to the U1 and the U2, and driving the steering motor 5 to rotate by the main control microprocessor unit through the steering control driving unit to assist the steering of the steering wheel.
EXAMPLE seven
Referring to fig. 7, the steering gear box boosting structure of the stroller according to the present embodiment is different from the first embodiment in that: the magnets 6 are in a block shape and are the same as the switches of the Hall sensor 4, and the number of the magnets is 1. The number of the hall sensors 4 is 3 or 5, in this embodiment 3, which are arranged in an arc shape. When the steered wheel is positioned directly in front, the magnet 6 is directly below the hall sensor 4 at the intermediate position. After the positions of the hall sensors 4 and the magnet 6 are installed, when the magnet 6 moves to the position of the hall sensor 4 in the moving process of the magnet 6, the induced electromotive force value of each hall sensor 4 is recorded and stored in the main control microprocessor unit, and the steering angle corresponding to the signal and the steering angle corresponding to the U1 stored in the main control microprocessor unit are matched. And comparing the steering angles corresponding to the U1 and the U2, and driving the steering motor 5 to rotate by the main control microprocessor unit through the steering control driving unit to assist the steering of the steering wheel.
The stroller using the steering gear box structure of the stroller of the first and seventh embodiments is compared with a stroller not using the steering gear box structure of the stroller. The applied force can be reduced by 60-70%.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (8)
1. A power-assisted structure of a steering gear box on a baby carriage is characterized by comprising a gear box shell, a rotating shaft, a steering motor, a steering gear, a Hall sensor and a magnet, wherein the steering motor and the rotating shaft are arranged on the gear box shell; the Hall sensor is in contact with the magnet and can move relatively.
2. A power assist structure for a steering gear box of a stroller as defined in claim 1, wherein said magnet is arcuate and rectangular in cross-section.
3. A power assist structure for a steering gear box of a baby carriage as claimed in claim 2, wherein the hall sensor is located outside the arc shape and is located at the center of the arc magnet when the steering wheel is located right in front.
4. A power assist structure for a steering gear box of a baby carriage as claimed in claim 2, wherein the hall sensor is located inside the arc shape, and when the steering wheel is located right in front, the hall sensor is located at the center of the arc magnet.
5. A power assist structure for a steering gear box of a stroller as defined in claim 2, wherein the number of the hall sensors is 2; and when the steering wheel is positioned right ahead, the Hall sensors are positioned at two ends of the magnet.
6. A power assisting structure of a steering gear box on a baby carriage as claimed in claim 2, wherein the number of the hall sensors is 3, and the hall sensors are positioned at the outer side of the arc and at the positions of five equal parts of the arc; when the steering wheel is positioned right ahead, the Hall sensor in the middle is positioned in the arc center position.
7. A power assisting structure for a steering gear box of a baby carriage as claimed in claim 1, wherein the number of the magnets is two, and a gap is formed in the middle of the magnets; when the steering wheel is positioned right ahead, the Hall sensor is positioned at the gap position of the two magnets.
8. A power assisting structure for a steering gear box of a baby carriage as claimed in claim 1, wherein the magnets are in the shape of blocks and arc-shaped, and the number of the magnets is 3 or 5; the Hall sensor is positioned below the magnet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920112670 | 2019-01-23 | ||
| CN2019201126700 | 2019-01-23 |
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| Publication Number | Publication Date |
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| CN210258681U true CN210258681U (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920759766.6U Active CN210258681U (en) | 2019-01-23 | 2019-05-24 | Steering gear box power-assisted structure on bassinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024048870A1 (en) * | 2022-08-30 | 2024-03-07 | 엘지전자 주식회사 | Flux-concentrated motor |
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2019
- 2019-05-24 CN CN201920759766.6U patent/CN210258681U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024048870A1 (en) * | 2022-08-30 | 2024-03-07 | 엘지전자 주식회사 | Flux-concentrated motor |
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