JP3082818U - DC brushless vibration motor - Google Patents

Abstract

(57) [Problem] To provide a DC brushless vibration motor that simplifies parts required for the motor and achieves the demand for microfabrication. SOLUTION: At least one substrate, two or more induction coils, and a weight element are provided. The induction coil is provided on the substrate, and generates magnetic force by inputting electric energy.
The stator element of the motor, the weight element is installed on the induction coil and offset from the center position of the motor, the plurality of coplanar magnetic poles having the weight element is the rotor part of the motor,
When electric energy is input to form an induction magnetic field, rotational energy is generated in the weight element under the electromagnetic interaction between the induction coil and the weight element, and vibration energy is generated in the motor by the weight element deviated from the center of the motor. Let it.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a type of DC brushless vibration motor, and more particularly, to a DC brushless vibration motor that achieves microstructure by modifying the design of a stator portion and a rotor portion of the motor.

[0002]

[Prior art]

 2. Description of the Related Art Mobile phones are used for one-to-one telecommunications, are small in volume, light in weight, and portable, and are the most attracted and accepted scientific and technological products in this era.

There are two types of methods in which a mobile phone notifies a user of call information. The first is an acoustic method, the second is a vibration method, and the acoustic method is that when a call signal is received, A bell sound or sound is generated. In the vibration method, a vibration motor is provided in the mobile phone, and when a call signal is received, the vibration motor is activated to vibrate, and the user has a call due to the vibration of the mobile phone. Know that you can get a call.

FIG. 1 shows a vibration motor that is currently viewed. The vibration motor has a long cylindrical shape, a weight block is connected to the motor shaft, and the weight block is connected when the motor rotates. Rotate and generate vibration energy by weight block design. However, at present, scientific and technological products such as notebook PCs, PDAs, and mobile phones are in the development direction of light, thin and small, and such vibration motors have a certain volume, so we design these technological products. Sometimes I was subject to certain restrictions.

[0005] When considering the reduction of the volume of the vibration motor described above, the simplest method is to reduce the dimensions of all the electronic parts that make up a science and technology product. However, such notions have implementation barriers in many scientific products, for example, even though dimensions have been made as small as possible, have led to assembly problems. Such a limitation is a problem of miniaturization of the product, and thus, when the assembling work becomes difficult, the production cost increases.

[0006] Furthermore, the vibration generated by the above-mentioned vibration motor is generated by providing a weight block at one end of the shaft center. This weight block is separately designed, and the reduction in motor size limits the limitation of the weight element. As shown in FIG. 1, the weight block is located at one end of the motor, the portion that generates vibration energy is only a quarter of the whole vibration motor, and the vibration function is locally performed. In order for the vibration motor to rotate the weight block at one end of the shaft center instead of the entire surface, it was necessary to output relatively large power, and thus the power consumption of the vibration motor increased. The installation of the weight block is fixed, and the vibration function output by this vibration motor is constant. If the machine type is different, a weight block with a different design is required, and the required vibration function can be obtained only by that.

[0007]

[Problems to be solved by the invention]

 In view of the above, an object of the present invention is to provide a micro DC brushless vibration motor.

[0008]

[Means for Solving the Problems]

 The invention of claim 1 is characterized in that said substrate comprises a printed circuit and comprises at least two power input contacts, and said substrate comprises two or more induction coils, which are wound radially and mounted on said substrate. The two or more induction coils, which are installed correspondingly, and the induction coil generates magnetism when a current passes through the induction coil to form a magnetic pole, and is a weight element, has magnetism, and is coplanar. It has a plurality of magnetic poles and is placed on an induction coil, and is shifted from the center position, and the weight element generates rotational energy due to rejection of magnetism with the induction coil, and the weight element is shifted. The weight element, which outputs a vibration function by the installation of the weight element, and two or more magnetic pins, which have magnetic conductivity, are interposed between the substrate and the weight element, and are located between the induction coil. Magnetic contact with the weight element The above two or more magnetic pins, which are magnetized, are used as a controller, installed on the substrate to form an electrical connection with the induction coil, and to activate the induction coil to form a magnetic pole. And a DC brushless vibration motor, comprising: According to a second aspect of the present invention, there is provided the DC brushless vibration motor according to the first aspect, wherein the DC brushless vibration motor includes a case formed of a non-magnetic material. According to a third aspect of the present invention, there is provided the DC brushless vibration motor according to the second aspect, wherein the case is composed of a bottom seat and an upper lid. According to a fourth aspect of the present invention, there is provided the DC brushless vibration motor according to the third aspect, wherein one opening is provided at a bottom end of a side of the upper lid. According to a fifth aspect of the present invention, there is provided the DC brushless vibration motor according to the first aspect, wherein a single shaft is provided at a central portion of the substrate. According to a sixth aspect of the present invention, there is provided the DC brushless vibration motor according to the first aspect, wherein one protection ring is provided between the substrate and the weight element. According to a seventh aspect of the present invention, there is provided a DC brushless vibration motor according to the sixth aspect, wherein the protection ring is formed of a non-conductive material. The invention according to claim 8 is characterized in that the protection ring is provided with a first hole and a second hole provided on an induction coil, a third hole provided on a shaft, a fourth hole provided on a controller, and a magnetic pin. The DC brushless vibration motor according to claim 6, further comprising fifth and sixth perforations provided in the motor. The invention according to claim 9 is characterized in that one electric connection port protrudes from the printed circuit, a power input contact is connected to the electric connection port, and the electric connection port extends from an opening of the case. A DC brushless vibration motor according to claim 1. According to a tenth aspect of the present invention, there is provided the DC brushless vibration motor according to the first aspect, wherein a magnetic force direction of the induction coil is an axial direction. The invention according to claim 11 is the DC brushless vibration motor according to claim 1, wherein the magnetic force direction of the weight element is set to the axial direction. According to a twelfth aspect of the present invention, there is provided the DC brushless vibration motor according to the first aspect, wherein the controller is a microprocessor. According to another aspect of the present invention, in the DC brushless vibration motor, there is provided a bridging element, and the bridging element is installed on the weight element, and the weight element can change a relative position with respect to the bridging element. Accordingly, the DC brushless vibration motor according to claim 1, wherein the center position of the weight element and the center position of the jacket element are located on different axes.

[0009]

[Embodiment of the invention]

 The DC brushless vibration motor of the present invention includes at least one substrate, two or more induction coils, and a weight element. The induction coil is provided on the substrate, and generates magnetic force by inputting electric energy. The weight element is placed above the induction coil and displaced from the center of the motor, and the plurality of coplanar magnetic poles of the weight element are used as the rotor part of the motor, and the electric energy When the induction magnetic field is formed by inputting the input voltage, the rotating energy is generated in the weight element under the interaction between the induction coil and the weight element, and the vibration energy is applied to the motor by the weight element deviated from the motor center. generate.

The weight element of the present invention is used as a rotor part of the motor and a weight necessary for generating vibration energy, whereby the motor generates vibration energy in all directions, and is necessary for starting the motor on the day of the plan. Reduce consumption power and increase operating efficiency of vibration motor.

The weight element of the present invention can directly modify the shift condition with respect to the center of the motor, can generate different vibration functions by different shift positions, and can be used according to the needs of various different machine types.

[0012]

【Example】

 As shown in FIGS. 2 and 3, the DC brushless vibration motor 10 of the present invention includes a case 11, a board 12, a shaft 13, two induction coils 14a and 14b, a controller 15, a protection ring 16, and two magnetic pins. 17a and 17b and the weight element 18. The case 11 covers all the components of the DC brushless vibration motor 10 and is a flat circular body composed of a bottom seat 111 and an upper lid 112. The DC brushless vibration motor 10 is formed using electric energy. In order to convert magnetic energy into mechanical energy, the case 11 needs to be formed of a non-conductive material, for example, aluminum, nickel, copper, or a plastic material, thereby reducing the induction magnetic field of the DC brushless vibration motor 10. Avoid destruction. In addition, one opening 1122 is provided at the bottom end of the side of the upper lid 121.

The substrate 12, the shaft 13, the induction coils 14 a and 14 b, the controller 15, the protection ring 16, the two magnetic pins 17 a and 17 b, and the weight element 18 are installed in the case 11 in order from bottom to top. Among them, the substrate 12 is a printed circuit board and includes a printed circuit. In the present invention, most necessary electric characteristics (current direction change, magnetic field drive, etc.) of the DC brushless vibration motor 10 are designed in the controller 15. In addition, the printed circuit on the printed circuit board is not complicated, and the manufacturing cost can be reduced. The board 12 is accommodated in the case 11 and is therefore designed in a circular shape. An electric connection port 121 protrudes from one side, and power input contacts 1211, 1212 are set in the electric connection port 121, and an external power supply (not shown) is provided. ) Are connected to the power input contacts 1211, 1212 and provide the electrical energy required by the DC brushless vibration motor 10. The electric connection port 121 extends out of the case 11 through an opening 1122 on the side of the upper lid 112 and is provided for connection with an external power supply. In addition, the shaft 13 is provided at the center position of the substrate 12.

The two induction coils 14 a and 14 b are formed by winding a conductive wire in the radial direction, and are installed on the substrate 12 and connected to a printed circuit on the substrate 12 (see FIG. 6). 10, the direction of the current is radial, the direction of the magnetic field is axial, and the current passes through the induction coils 14a, 14b, and the induction coil 14a, 14b generates an axial magnetic field.

The controller 15 is a microprocessor and is mounted on the substrate 12 and connected to a printed circuit (see FIG. 6). The controller 15 is provided for most of the required electrical characteristics of the DC brushless vibration motor 10 (see FIG. 6). Current direction change, magnetic field drive, etc.) to drive and control the rotation of the DC brushless vibration motor 10 with the circuit composition matched therein. The purpose of this is to simplify the electronic parts required for the circuit composition of the DC brushless vibration motor 10 and to simplify the printed circuit on the substrate 12, which is advantageous for the assembly work of the miniaturized DC brushless vibration motor 10, and thereby, the compactness is achieved. Another object of the present invention is to reduce the assembly work cost which can be increased by the construction.

The protection ring 16 is formed of a non-magnetic material such as a plastic material, and prevents the destruction of the magnetic field of the DC brushless vibration motor 10 by the first perforations 161 corresponding to the two induction coils 14a, 14b. A second perforation 162 is provided, and a third perforation 163 at a position corresponding to the shaft rod 13 in the central portion, a fourth perforation 164 corresponding to the controller 15, and a position between the first perforation 161 and the second perforation 162. A fifth perforation 165 and a sixth perforation 166 are provided. The height of the protection ring 16 is equal to the size of the induction coils 14a, 14b, and the inner diameter of the first perforation 161 and the second perforation 162 is exactly equal to the wire diameter of the induction coils 14a, 14b. The shaft 13 passes through the third hole 163, the induction coils 14a and 14b are inserted into the first hole 161, the second hole 162, and the controller 15 is inserted into the fourth hole 164. The first perforation 161 and the second perforation 162 are provided on the induction coils 14a and 14b, and the winding state of the induction coils 14a and 14b is maintained. In addition, the fifth and sixth perforations 165 and 166 are used for installing the magnetic pins 17a and 17b.

The magnetic pins 17 a and 17 b are made of a magnetic conductive material (ferromagnetic material), for example, made of iron. The pillars are inserted into the fifth hole 165 and the sixth hole 166.

The weight element 18 has a circular shape, is a permanent magnet, has an annular shape, and has a plurality of magnetic poles 181, 182, 183, and 184 formed on a plane thereof (see FIG. 5). The magnetic poles adjacent to each other have different polarities (N pole, S pole), and the magnetic poles 181, 182, 183, and 184 have axial lines of magnetic force, and act corresponding to the induction coils 14a and 14b. When the induction coils 14a and 14b generate magnetic force, the magnetic force of the weight element 18 and the induction coils 14a and 14b is rejected, and rotational energy is generated. In addition, the weight element 18 adsorbs one covering element 19, and the covering element 19 is made of a magnetically conductive material, which is absorbed above the weight element 18 so that the weight element 18 rotates as it rotates. In order to prevent the weight element 18 from rotating directly and rubbing against the case 11 directly and to enable the DC brushless vibration motor 10 to generate a vibration function, the weight element 18 is positioned at the center of the jacket element 19. Deviating, i.e., the center point of the jacket element 19 and the weight element 18 are not on the same axis (see FIG. 7), thereby generating vibrational energy when the weight element 18 rotates.

Please refer to FIG. 4 and FIG. In the DC brushless vibration motor 10 according to the present invention, an external power supply and power input contacts 1211 and 1212 are connected, electric energy is connected to the induction coils 14a and 14b, and the induction coils 14a and 14b are respectively connected to the controller. 15 to form an electric circuit. In addition, the weight element 18 and the magnetic pins 17a and 17b are in magnetic contact, the magnetic pins 17a and 17b are temporarily made of magnetic iron, external power is input to the power input contacts 1211 and 1212, and current is supplied to the induction coils 14a and 14b. When magnetic force is generated by flowing through the magnetic field, the magnetic pins 17a and 17b destroy the static equilibrium of the magnetic field under normal conditions, the induction coils 14a and 14b and the weight element 18 repel each other, and the weight element 18 converts the rotational energy. Occurs, and the weight element 18 is deviated from the center position of the motor, so that the motor generates vibration energy.

As shown in FIG. 8, the present invention can directly change the relative distance between the weight element 18 and the jacket element 19, that is, can generate different vibration functions depending on the shift condition between them. According to the present invention, if the deviation position from the center of the weight element 18 is directly modified by the vibration function required by the machine type to be combined, it is not necessary to modify the design or add another element.

[0021]

[Effect of the invention]

 The DC brushless vibration motor provided by the present invention provides a micromotor which is a miniaturized traditional motor structural design. Modification of the structure of the stator and rotor in the motor achieves the demand for micronization, and at the same time achieves a vibration output function by designing the eccentricity of the rotor, eliminating the disadvantages of traditional vibration motors. Improve.

In addition, the present invention directly makes the rotor a necessary weight for the vibration output function, eliminates the load on the weight block required by the traditional vibration motor, and greatly increases the efficiency of motor operation. .

Furthermore, in the case of a traditional vibration motor, when it is desired to modify the output vibration function, the design of the weight block had to be modified. However, the present invention differs by directly modifying the position condition of the weight element. Vibration function can be obtained.

In summary, it has been sufficiently shown that the DC brushless vibration motor of the present invention has an inventive step in implementation in terms of purpose and function, and has extremely industrial utility value. The device fully complies with the requirements for utility model registration because its composition has not been described in any publication prior to its filing and has not been used publicly. The above is the description of the embodiment of the present invention, and does not limit the scope of the present invention, and any modification or alteration of details that can be made based on the present invention falls within the scope of the present invention. I do.

[Brief description of the drawings]

FIG. 1 is a view showing a known vibration motor.

FIG. 2 is an exploded perspective view of the present invention.

FIG. 3 is a perspective view after the combination of the present invention.

FIG. 4 is a side sectional view of the embodiment of the present invention after combination.

FIG. 5 is a magnetic pole diagram of the weight element of the present invention.

FIG. 6 is a schematic diagram of a main electric circuit according to the present invention.

FIG. 7 is a view showing the relationship between the magnetic element and the jacket element in the present invention.

FIG. 8 is a diagram showing the relationship between the magnetic element and the jacket element in the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 DC brushless vibration motor 11 Case 111 Bottom seat 112 Top lid 1121 Drilling 1122 Opening 12 Substrate 121 Electric connection port 1211, 1212 Power input contact 13 Shaft rod 14a, 14b Induction coil 15 Controller 16 Protection ring 161 First drilling 162 Second drilling 163 First 3 perforations 164 4th perforations 165 5th perforations 166 6th perforations 17a, 17b Magnetic pins 18 Weight elements 181, 182, 183, 184 Magnetic poles 19 Traditional elements

Claims (13)

[Utility model registration claims] 1. A substrate as described above, comprising a printed circuit and at least two power input contacts, and at least two induction coils, wound radially and mounted on the substrate. The two or more induction coils, wherein the induction coil generates magnetism by passing a current through the induction coil to form a magnetic pole, and a weight element, has a magnetism, and has a plurality of It has a magnetic pole and is placed on the induction coil, and it is shifted from the center position. The weight element generates rotational energy due to rejection of magnetism with the induction coil, and vibrates due to the installation of the weight element being displaced. The weight element, which outputs a function, is composed of two or more magnetic pins, has magnetic conductivity, is interposed between the substrate and the weight element, and is located between the induction coil and the weight element. Magnetized by magnetic contact The two or more magnetic pins, and the controller, which is used as a controller, which is installed on the substrate to form an electrical connection with the induction coil, and is used to activate the induction coil to form a magnetic pole. A DC brushless vibration motor, comprising: 2. The DC brushless vibration motor according to claim 1, further comprising a case formed of a non-magnetic material. 3. The DC brushless vibration motor according to claim 2, wherein the case is composed of a bottom seat and a top lid. 4. The DC brushless vibration motor according to claim 3, wherein one opening is provided at a bottom end of a side of the upper lid. 5. The DC brushless vibration motor according to claim 1, wherein one shaft is provided at a center portion of the substrate. 6. The DC brushless vibration motor according to claim 1, wherein one protection ring is provided between the substrate and the weight element. 7. The DC brushless vibration motor according to claim 6, wherein the protection ring is formed of a non-magnetic material. 8. A first perforation and a second perforation in which the protection ring is provided in the induction coil, a third perforation in the shaft rod,
7. The DC brushless vibration motor according to claim 6, further comprising a fourth hole formed in the controller, and fifth and sixth holes formed in the magnetic pin. 9. An electric connection port protrudes from the printed circuit, a power input contact is connected to the electric connection port, and the electric connection port extends from an opening of the case. 4. A DC brushless vibration motor according to claim 1. 10. The DC brushless vibration motor according to claim 1, wherein a magnetic force direction of the induction coil is an axial direction. 11. The DC brushless vibration motor according to claim 1, wherein a magnetic force direction of the weight element is set in an axial direction. 12. The DC brushless vibration motor according to claim 1, wherein the controller is a microprocessor. 13. The DC brushless vibration motor according to claim 1, further comprising a covering element, wherein the covering element is disposed on the weight element, and the weight element can change a relative position with respect to the covering element. The DC brushless vibration motor according to claim 1, wherein the center positions of the weight element and the jacket element are located on different axes.