CN2829210Y - Gear decelerator and gear motor connector - Google Patents
Gear decelerator and gear motor connector Download PDFInfo
- Publication number
- CN2829210Y CN2829210Y CN 200520119127 CN200520119127U CN2829210Y CN 2829210 Y CN2829210 Y CN 2829210Y CN 200520119127 CN200520119127 CN 200520119127 CN 200520119127 U CN200520119127 U CN 200520119127U CN 2829210 Y CN2829210 Y CN 2829210Y
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- CN
- China
- Prior art keywords
- magnet
- transducer
- connector
- motor
- hall effect
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a speed reducing gear device for a motor (10), which comprises a motor (11), a magnet (24) and a Hall effect sensor (14), wherein a transmission shaft is driven to rotate by the motor (11), the magnet (24) is positioned on the transmission shaft, and the Hall effect sensor (14) is close to the magnet (24). The utility model also relates to a connector comprising the Hall effect sensor. The utility model has the advantages that the detection of the magnetic field of the magnet through the Hall effect sensor and the operation of the motor are strengthened, and any intermediate component does not need to be applied between the magnet and the Hall effect sensor.
Description
Technical field
The utility model relates to a kind of gear reduction unit and a kind of gear motor connector.
Background technology
Be applicable to that motor of the present utility model or gear motor are linked on the control system, this control system is utilized electromotor velocity and/or location parameter.Speed and/or the position of depending on described power transmission shaft, described control system receives these parameters from the hall effect sensor of linking on the magnet, and this magnet is designed to magnetic field is sent to described transducer place.
Once proposed a solution, be about on the driving shaft that described magnet is installed in gear motor, and described hall effect sensor was fixed on described control system or the connector; The magnetic flux conductor that forms a flux concentrator is inserted between described magnet and the described transducer, is directed to described transducer to allow magnetic flux.
There is defective in this solution, i.e. the part of flux loss, and can not be directed to described hall effect sensor, this will reduce the quality that motor parameter is surveyed.And the installation of flux concentrator will make the manufacturing of described connector become complicated more.
The utility model content
In order to address this problem, the utility model proposes a kind of gear reduction unit, it comprises that one drives the motor of power transmission shaft rotation, one is positioned at a magnet and the hall effect sensor near described magnet on the described power transmission shaft.
Preferably, the distance between described transducer and the described magnet is smaller or equal to 4mm.Advantageously, the distance between described transducer and the described magnet is 2mm.
According to an embodiment, described transducer is being supported by a connector that power is sent on the described motor.Preferably, described connector is movably.
According to an embodiment, described connector comprises the printed circuit board (PCB) that defines a plane, and wherein said transducer is biased with respect to described plane.
The utility model also relates to a kind of gear motor connector, and it comprises a printed circuit board (PCB) and a hall effect sensor that defines a plane, and wherein said transducer is biased with respect to described plane.For example, described hall effect sensor is arranged in the guide hole of described connector.Advantageously, described connector also comprises electric contact.
Description of drawings
Below by with reference to the accompanying drawings, the detailed description of the utility model embodiment is only come other characteristic of the present utility model and advantage are described as an example, wherein:
Figure 1 shows that the cutaway view of gear reduction unit;
Fig. 2 and Figure 3 shows that by the detection of transducer to magnetic field of magnets.
Embodiment
In order to survey the operating parameter of motor, near a kind of hall effect sensor that is positioned at the magnet has been proposed in an embodiment of the present utility model, this hall effect sensor is the source of linking the magnetic field on the motor operated parameter.This hall effect sensor is set at a distance, so it can detect magnetic field, and need not use middle device between magnet and transducer.
Figure 1 shows that the schematic diagram of gear reduction unit 9, it comprises gear motor 10, and connector 12 is connected on the gear motor 10.
According to the embodiment among Fig. 1, magnet 24 is the magnet rings that are positioned on the power transmission shaft 15.The longitudinal axis of axle 15 is crossed in the polarization of magnet 24.
Fig. 2 and the detection that Figure 3 shows that by the magnetic field of 14 pairs of magnet 24 of transducer.Figure 2 shows that to have two magnetic poles, the South Pole and the arctic, magnet 24, wherein the magnetic line of force 42 extends to another magnetic pole from a magnetic pole.Near the transducer 14 that the magnetic line of force 42 is set at the magnet 24 detects.Figure 3 shows that the magnet 24 with two South Pole and two arctic, wherein the magnetic line of force 42 extends to a Nan Jichu from an arctic.Near the transducer 14 that the magnetic line of force 42 is set at the magnet 24 detects.
Can see that in Fig. 2 and Fig. 3 the north and south poles that magnet has is many more, magnetic field 42 is just weak more.The advantage that magnet has several magnetic poles is that the operating parameter of power transmission shaft 15 can be measured more accurately.When magnetic field is more weak, owing to exist transducer 14 near magnet 24, this will make transducer not have to detect magnetic field under the situation of middle device.Magnet 24 produces equicohesive magnetic field 42, and the direction in magnetic field changes along with the variation of the position, angle of power transmission shaft 15, this means that the magnetic field of being detected by hall effect sensor 14 is the function of the position, angle of power transmission shaft 15.So the signal of telecommunication that is transmitted by hall effect sensor 14 provides about the speed of power transmission shaft 15 and/or the information of position, angle, and makes that the operation of motor is controlled.
For example, the distance between transducer 14 and the magnet 24 is 4mm at the most.When standoff distance is 4mm, can be with the sensor application of 20G in four polar rings.Preferably, the distance between transducer 14 and the magnet 24 is 2mm.In this case, when application had the identical transducer of sensitivity of 20G, the number of magnetic pole rose to six, therefore, can provide higher accuracy in the measurement of position.In the solution of a kind of transducer with flux concentrator, identical sensitivity and identical magnet surface electric field, magnetic field can not be delivered to transducer because magnetic field is too weak, so only the polarity ring can be used to correct operation.
For example, transducer 14 can be fixed on the overcoat 23, and supply terminals 22 or collector electrode 20 depend on the position of magnet 24 along the axis of power transmission shaft 15.Its advantage is when gear reduction unit 9 is assembled or be not assembled, and hall effect sensor can be installed on the identical master gear decelerator as required.
Preferably, hall effect sensor 14 is connected device 12 and is supporting, and is used for transmission of power to motor 11 places.For this purpose, in order to maintain the connector 12 with guide hole 41, overcoat 23 has a hole 25 near supply terminals 22, and transducer 14 is positioned at above-mentioned guide hole 41.Connector 12 can comprise the printed circuit board (PCB) 26 on the control device that is used in motor 11.Printed circuit can be sent to source current on the motor 11.The electric current that is transmitted by electronic circuit passes fork-shaped electric contact 32, and just, contact is on an end of being made up of elastic clip, and this elastic clip has the aduncate contact component of two symmetries.
Advantageously, connector 12 is movably.But connector 12 is not shown by conventional release fasteners, is held in position and goes up.Its advantage is that connector 12 can be replaced by another connector with different control electronic installations.Another advantage is that transducer 14 is not necessarily to be installed in the overcoat 23 of gear motor.And, when gear reduction unit is manufactured, needn't be provided for the connection of transducer, this has simplified its manufacturing.
Transducer is transmitted the fact that connector supporting by power movably and allows defective in the correcting sensor, perhaps is used for changing type of sensor by mobile connector.For of the detection of optimization transducer to magnetic field, the form of removable support means that also the position of transducer can be adjusted easily or adjusts once more on connector, if and transducer is for good and all fixed in gear motor, it is more difficult that so above-mentioned adjustment will become.
The utility model also relates to a kind of like this connector 12.
Preferably, connector 12 comprises shell 36, but release fasteners (not shown) is installed on shell 36.Shell 36 comprises printed circuit board (PCB) 26, electric contact 32 and hall effect sensor 14.For example, shell 36 can be by molded acquisition.Preferably, the connection between the profile in shell 36 and aperture 25 is sealed, so the inside of gear motor 10 can keep waterproof; And, preferably, also remain in the sealing between the inside of the inside of shell 36 and gear motor 10.
In order to simplify the structure of gear motor, the application that removable connector supports transducer makes all connections of connector all be biased towards connector from gear motor.
Advantageously, transducer 14 is arranged in the guide hole 41 of shell 36, to guarantee the sealing between shell 36 and the gear motor 10.Transducer 14 passes shell 36 and surveys magnetic field.Shell 36 protection transducers 14.Consider the manufacturing tolerance of magnet 24 and axle 15, and between shell 36 and magnet 24 without any contact, distance between transducer 14 and the magnet 24 is can be selecteed, so transducer 14 can be set in the shell 36, and shell 36 can be shifted near magnet 24 places.
According to the utility model, connector makes the configuration of single gear motor be applicable to various application occasions.The standardization of gear motor is compensated by the possibility that changes connector, and the change of connector is by the electronic installation on the change printed circuit board (PCB) and the type of hall effect sensor.This make the manufacturing of gear reduction unit become to simplify and also cost lower.
Claims (7)
1, a kind of gear reduction unit (10), it comprises:
One drives the motor (11) of power transmission shaft rotation,
One is positioned at the magnet (24) on the described power transmission shaft,
One hall effect sensor (14) near described magnet (24),
One is sent to the removable connector (12) that described motor (11) is located with power, and wherein transducer (14) is being supported by described connector (12).
2, gear reduction unit as claimed in claim 1 is characterized in that: the distance between described transducer (14) and the described magnet (24) is smaller or equal to 4mm.
3, gear reduction unit as claimed in claim 1 or 2 is characterized in that: the distance between described transducer (14) and the described magnet (24) is 2mm.
4, as each described gear reduction unit in the above-mentioned claim, it is characterized in that: described connector (12) comprises a printed circuit board (PCB) (26), this printed circuit board (PCB) (26) defines a plane (P), and wherein said transducer (14) is biased with respect to described plane (P).
5, a kind of gear motor connector (12), it comprises a printed circuit board (PCB) (26) and a hall effect sensor (14), and described printed circuit board (PCB) (26) defines a plane (P), and wherein said transducer (14) is biased with respect to described plane (P).
6, connector as claimed in claim 5 is characterized in that: described hall effect sensor (14) is arranged in a guide hole of described connector.
7, as claim 5 or 6 described connectors, it is characterized in that: described connector also comprises electric contact (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520119127 CN2829210Y (en) | 2005-09-15 | 2005-09-15 | Gear decelerator and gear motor connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520119127 CN2829210Y (en) | 2005-09-15 | 2005-09-15 | Gear decelerator and gear motor connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2829210Y true CN2829210Y (en) | 2006-10-18 |
Family
ID=37080761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520119127 Expired - Fee Related CN2829210Y (en) | 2005-09-15 | 2005-09-15 | Gear decelerator and gear motor connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2829210Y (en) |
-
2005
- 2005-09-15 CN CN 200520119127 patent/CN2829210Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |