CN111404326A - Improved motor for electric toy car - Google Patents
Improved motor for electric toy car Download PDFInfo
- Publication number
- CN111404326A CN111404326A CN202010402902.3A CN202010402902A CN111404326A CN 111404326 A CN111404326 A CN 111404326A CN 202010402902 A CN202010402902 A CN 202010402902A CN 111404326 A CN111404326 A CN 111404326A
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- CN
- China
- Prior art keywords
- magnetic conduction
- conduction shell
- permanent magnet
- shell
- motor
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- 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.)
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/0094—Structural association with other electrical or electronic devices
Abstract
The invention provides an improved electric toy car motor, which comprises a pair of permanent magnets which are oppositely arranged, wherein an armature core which can rotate around a shaft is arranged between the permanent magnets; the permanent magnet is wrapped by a magnetic conduction shell, and when the magnetic conduction shell is in a natural state, a gap is formed between the end face of the permanent magnet, which is deviated from the armature core, and the magnetic conduction shell; a motor shell is wrapped outside the magnetic conduction shell, and a piezoelectric plate facing the gap is arranged between the magnetic conduction shell and the motor shell in a lining manner; the piezoelectric piece is connected to a power supply through a vibration switch, so that the piezoelectric piece expands when a circuit is switched on during vibration, the magnetic conduction shell is pressed to deform radially, and the piezoelectric piece is attached to the end face of the permanent magnet. The stator field intensity inside the motor is in a lower state under a flat terrain, and can be automatically enhanced when facing a fluctuating terrain, so that the performance of the electric toy car is temporarily improved.
Description
Technical Field
The invention relates to the field of motors, in particular to a direct current motor.
Background
In the existing direct current motor installed on the electric toy car, in order to improve the energy utilization efficiency and reduce the iron loss, the stator magnetic field inside the direct current motor is usually not set to be larger in magnetic field intensity; however, this causes the output torque of the motor to be at a low level, so that the electric toy vehicle is weak in quick passing when facing a rugged terrain environment.
Disclosure of Invention
In view of the above problems, it is an object of the present invention to provide an improved motor for an electric toy vehicle, which has a low stator field strength in a flat terrain and can be automatically enhanced when facing a rough terrain, so as to temporarily improve the performance of the electric toy vehicle.
The first technical scheme adopted by the invention for solving the technical problems is as follows: the improved electric toy car motor comprises a pair of permanent magnets which are oppositely arranged, and an armature core which can rotate around a shaft is arranged between the permanent magnets; the permanent magnet is wrapped by a magnetic conduction shell, and when the magnetic conduction shell is in a natural state, a gap is formed between the end face of the permanent magnet, which is deviated from the armature core, and the magnetic conduction shell; a motor shell is wrapped outside the magnetic conduction shell, and a piezoelectric plate facing the gap is arranged between the magnetic conduction shell and the motor shell in a lining manner; the piezoelectric piece is connected to a power supply through a vibration switch, so that the piezoelectric piece expands when a circuit is switched on during vibration, the magnetic conduction shell is pressed to deform radially, and the piezoelectric piece is attached to the end face of the permanent magnet.
The second technical scheme adopted by the invention for solving the technical problems is as follows: the improved electric toy car motor comprises a pair of permanent magnets which are oppositely arranged, and an armature core which can rotate around a shaft is arranged between the permanent magnets; the permanent magnet is wrapped by a magnetic conduction shell, and when the magnetic conduction shell is in a natural state, a gap is formed between the end face of the permanent magnet, which is deviated from the armature core, and the magnetic conduction shell; the magnetic conduction shell is wrapped by a motor shell, an electromagnet opposite to the gap and the permanent magnet is arranged on the outer surface of the magnetic conduction shell, the electromagnet is attracted with the opposite pole of the permanent magnet opposite to the electromagnet when the electromagnet is electrified, so that the magnetic conduction shell is pressed to be attached to the permanent magnet after the electromagnet is electrified, the magnetic field of the electromagnet can be overlapped with the original magnetic field of the permanent magnet, and the magnetic field intensity is further enhanced.
The two technical schemes have the beneficial effects that: when the electric toy car with the motor runs on a flat terrain, as the car body is relatively stable, the vibration switch is kept off, so that a certain gap is kept between the magnetic conductive shell and the permanent magnet, and at the moment, the electric toy car works in a rated state, so that the iron loss generated by the motor is relatively small, and the energy utilization efficiency is relatively high; when the electric toy car runs in a bumpy terrain, the car body can oscillate to close the vibration switch, so that the magnetic conduction shell is attached to the permanent magnet, the magnetic field of the whole stator is greatly enhanced, the output torque of the motor is enhanced, and the performance of the electric toy car is temporarily enhanced to adapt to the bumpy and bumpy ground environment.
Drawings
Figure 1 is a schematic view of the improved electric toy vehicle in a natural state according to the embodiment of the present invention.
FIG. 2 is a schematic view of a bumpy state according to an embodiment.
Figure 3 is a schematic view of the second embodiment of the motor of the improved electric toy car in a natural state.
FIG. 4 is a schematic view of the second embodiment in a bumpy state.
Detailed Description
The invention is further illustrated with reference to the following figures and examples:
the first embodiment is as follows:
as shown in fig. 1 and fig. 2, in the first embodiment, the improved electric toy vehicle motor includes a pair of permanent magnets 1 disposed opposite to each other, and an armature core 2 rotatable around a shaft is disposed between the pair of permanent magnets 1; the permanent magnet 1 is wrapped by a magnetic conduction shell 3, wherein when the magnetic conduction shell 3 is in a natural state, a gap is formed between the end face of the permanent magnet 1, which is far away from the armature core 2, and the magnetic conduction shell 3; a motor shell 4 is wrapped outside the magnetic conduction shell 3, and a piezoelectric plate 5 facing the gap is arranged between the magnetic conduction shell 3 and the motor shell 4 in a lining manner; the piezoelectric plate 5 is connected to a power supply through a vibration switch, so that the piezoelectric plate 5 expands when a circuit is switched on during vibration, the magnetic conductive shell 3 is pressed to deform radially, and the piezoelectric plate is attached to the end face of the permanent magnet 1.
When the electric toy car with the motor runs on a flat terrain, as the car body is relatively stable, the vibration switch is kept off, so that a certain gap is kept between the magnetic conduction shell 3 and the permanent magnet 1, and at the moment, the electric toy car works in a rated state, so that the iron loss generated by the motor is relatively small, and the energy utilization efficiency is relatively high; when the electric toy car runs in a bumpy terrain, the car body can be oscillated to close the vibration switch, and then the piezoelectric sheets 5 are electrified to expand and press the magnetic conductive shell 3, so that the magnetic conductive shell 3 is attached to the permanent magnet 1, the magnetic field of the whole stator is greatly enhanced, the output torque of the motor is enhanced, and the performance of the electric toy car is temporarily enhanced to adapt to the bumpy and fluctuant ground environment.
In addition, a plurality of piezoelectric sheets 5 may be used in a stacked manner to enhance the effect of the energization expansion.
Example two:
the second embodiment shown in fig. 3 and 4 is different from the first embodiment in that: the outer surface of the magnetic conduction shell 3 is provided with an electromagnet 6 facing the gap and the permanent magnet 1 to replace a piezoelectric sheet 5, the electromagnet 6 is attracted with the opposite pole of the permanent magnet 1 facing the electromagnet 6 when being electrified, so that the magnetic conduction shell 3 is pressed to be attached to the permanent magnet 1 under the influence of magnetic force after being electrified, the magnetic field of the whole stator is greatly enhanced, the output torque of the motor is enhanced, and the performance of the electric toy car is temporarily enhanced to adapt to the bumpy and fluctuant ground environment; meanwhile, when the electromagnet 6 is electrified, the magnetic field of the electromagnet is superposed with the original magnetic field of the permanent magnet 1, so that the magnetic field intensity can be further enhanced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the subject matter of the invention is intended to cover all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.
Claims (2)
1. An improved electric toy car motor comprises a pair of permanent magnets (1) which are oppositely arranged, and an armature core (2) which can rotate around a shaft is arranged between the pair of permanent magnets (1); the method is characterized in that: the permanent magnet (1) is wrapped by a magnetic conduction shell (3), and when the magnetic conduction shell (3) is in a natural state, a gap is formed between the end face of the permanent magnet (1) which is far away from the armature core (2) and the magnetic conduction shell (3); a motor shell (4) is wrapped outside the magnetic conduction shell (3), and a piezoelectric sheet (5) facing the gap is lined between the magnetic conduction shell (3) and the motor shell (4); the piezoelectric piece (5) is connected to a power supply through a vibration switch, so that the piezoelectric piece (5) expands when a circuit is switched on during vibration, the magnetic conduction shell (3) is pressed to deform radially and is attached to the end face of the permanent magnet (1).
2. An improved electric toy car motor comprises a pair of permanent magnets (1) which are oppositely arranged, and an armature core (2) which can rotate around a shaft is arranged between the pair of permanent magnets (1); the method is characterized in that: the permanent magnet (1) is wrapped by a magnetic conduction shell (3), and when the magnetic conduction shell (3) is in a natural state, a gap is formed between the end face of the permanent magnet (1) which is far away from the armature core (2) and the magnetic conduction shell (3); the magnetic conduction shell (3) is wrapped by a motor shell (4), an electromagnet (6) which is opposite to the gap and the permanent magnet (1) is arranged on the outer surface of the magnetic conduction shell (3), and the electromagnet (6) is attracted with the opposite pole of the permanent magnet (1) opposite to the electromagnet (6) when electrified so as to press the magnetic conduction shell (3) to be attached to the permanent magnet (1) after the electrification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010402902.3A CN111404326A (en) | 2020-05-13 | 2020-05-13 | Improved motor for electric toy car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010402902.3A CN111404326A (en) | 2020-05-13 | 2020-05-13 | Improved motor for electric toy car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111404326A true CN111404326A (en) | 2020-07-10 |
Family
ID=71414094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010402902.3A Withdrawn CN111404326A (en) | 2020-05-13 | 2020-05-13 | Improved motor for electric toy car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111404326A (en) |
-
2020
- 2020-05-13 CN CN202010402902.3A patent/CN111404326A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200710 |
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| WW01 | Invention patent application withdrawn after publication |