CN212875637U - Magnetoelectric vibration generator - Google Patents
Magnetoelectric vibration generator Download PDFInfo
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- CN212875637U CN212875637U CN202021585138.XU CN202021585138U CN212875637U CN 212875637 U CN212875637 U CN 212875637U CN 202021585138 U CN202021585138 U CN 202021585138U CN 212875637 U CN212875637 U CN 212875637U
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Abstract
The utility model discloses a magnetoelectric vibration generator, which comprises a generator shell, an induction coil and a magnetic bead, wherein the generator shell is fixedly arranged on an airtight vibration object, a holding cavity is arranged inside the generator shell, the magnetic bead is arranged in the holding cavity, and the cross-sectional area of the magnetic bead is smaller than that of the holding cavity so as to enable the magnetic bead to move in the holding cavity; the outer surface of the generator shell is provided with coil grooves, the number of the coil grooves is equal to that of the induction coils, the induction coils are correspondingly arranged in the coil grooves in a surrounding mode, and two power supply ends are led out of the induction coils; the magnetic beads are used for generating a changing electromagnetic field in the accommodating cavity along with vibration when the vibrating object vibrates; the induction coil is used for inducing and generating alternating current when the magnetic beads vibrate to generate a changing electromagnetic field, and outputting voltage through a power supply end. Adopt the utility model discloses, can forward the vibration energy in the airtight environment for the electric energy to provide sustainable independent power supply in airtight environment, in order to last the power supply to small-size electronic equipment.
Description
Technical Field
The utility model relates to a generator technology especially relates to a magnetoelectric vibration generator.
Background
The existing magnetoelectric generator generates induction current by changing the magnetic flux of an induced coil through the regular vibration of an inertial body according to a specific type. However, in reality, the vibration of the inertial body is irregular in some vibration occasions, and a micro generator device which can convert the vibration energy in the environment into electric energy and continuously supply the electric energy is lacked at present. In addition, in some practical situations, a miniature power supply device needs to be installed to supply power to small equipment, for example, when tire pressure of a vehicle tire is detected, a miniature wireless sensor needs to be installed, and the wireless sensor wires generally need a button battery to supply power. However, the button battery has short power supply time and needs to be replaced frequently, so that the maintenance cost of the vehicle is increased, and inconvenience is brought to users.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a magnetoelectric vibration generator is provided, can forward the vibration energy in the airtight environment for the electric energy to provide sustainable independent power supply in the airtight environment, in order to continuously supply power to small-size electronic equipment.
In order to solve the technical problem, the utility model provides a magnetoelectric vibration generator, which comprises a generator shell, an induction coil and a magnetic bead, wherein the generator shell is fixedly arranged on a closed vibration object, a holding cavity is arranged inside the generator shell, the magnetic bead is placed in the holding cavity, and the cross-sectional area of the magnetic bead is smaller than that of the holding cavity so as to enable the magnetic bead to move in the holding cavity; the outer surface of the generator shell is provided with coil grooves, the number of the coil grooves is equal to that of the induction coils, the induction coils are correspondingly arranged in the coil grooves in a surrounding mode, and two power supply ends are led out of the induction coils.
As an improvement of the scheme, the generator shell is made of non-electromagnetic conductive materials.
As an improvement of the scheme, when the number of the induction coils is two or more, the homonymous ends between the induction coils are connected, and the other two ends are the power supply ends.
As an improvement of the scheme, the outer surface of the generator shell is also provided with a strip-shaped groove.
As an improvement of the scheme, the magnetic beads are permanent rubidium iron boron magnets.
As an improvement of the scheme, the magnetic beads are spherical, and the accommodating cavity is cylindrical.
As an improvement of the scheme, a V-shaped groove is arranged in the cylindrical accommodating cavity.
As an improvement of the scheme, the size of the generator shell is 8mm in diameter of the bottom surface and 31mm in length.
As the improvement of above-mentioned scheme, the utility model discloses magnetoelectric vibration generator still includes energy storage capacitor, and energy storage capacitor's both ends pass through rectifier circuit with two power ends respectively and are connected.
Implement the utility model has the advantages that:
implement the utility model discloses magnetoelectric vibration generator can forward the vibration energy in the airtight environment for the electric energy to provide sustainable independent power supply in airtight environment, in order to last the power supply to small-size electronic equipment.
Particularly, at first, generator housing fixed mounting is on the vibration object, and generator housing's inside is equipped with the holding chamber, and the magnetic bead has been placed to the holding intracavity, because the cross-sectional area of magnetic bead is less than the cross-sectional area in holding chamber, consequently when the vibration object takes place to vibrate, the magnetic bead can follow the vibration object and vibrate at the holding intracavity to the magnetic field of production. Secondly, coil grooves are formed in the outer surface of the generator shell, the number of the coil grooves is equal to that of the induction coils, the induction coils are correspondingly arranged in the coil grooves in a surrounding mode, two power supply ends are led out of the induction coils, and when the magnetic beads vibrate in the accommodating cavity and generate a changing electromagnetic field; the magnetic flux of the induction coil is changed, so that induction current is induced, and the induction voltage is output through the power supply end. Through above-mentioned two processes, the utility model discloses magnetoelectric vibration generator is with the vibration energy conversion electric energy of vibration object to make full use of vibration energy.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a magnetoelectric vibration generator according to the present invention;
fig. 2 is a schematic structural diagram of a generator casing of an embodiment of the magnetoelectric vibration generator according to the present invention;
fig. 3 is a cross-sectional view of a generator housing of an embodiment of the magnetoelectric vibration generator of the present invention;
fig. 4 is a partially enlarged view of a cross section of a generator casing according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. Only this statement, the utility model discloses the upper and lower, left and right, preceding, back, inside and outside etc. position words that appear or will appear in the text only use the utility model discloses an attached drawing is the benchmark, and it is not right the utility model discloses a concrete restriction.
Fig. 1 is a schematic structural diagram of an embodiment of a magnetoelectric vibration generator according to the present invention. Fig. 2 is a schematic structural diagram of a generator casing according to an embodiment of the present invention. The utility model discloses magnetoelectric vibration generator includes generator casing 1, induction coil 2 and magnetic bead 3, and generator casing fixed mounting is on airtight vibration object, and the inside of generator casing is equipped with holding chamber 11, and magnetic bead 3 places in holding chamber 11, and the cross-sectional area of magnetic bead 3 is less than the cross-sectional area of holding chamber 11 so that magnetic bead 3 removes in holding chamber 11; the outer surface of the generator casing 1 is provided with coil grooves 12, the number of the coil grooves is equal to that of the induction coils, and the number of the coil grooves and the number of the induction coils are 3 in the embodiment. The induction coil 2 is correspondingly arranged in the coil groove 12 in a surrounding way, and two power supply ends 21 are led out of the induction coil 2.
The magnetic beads 3 are used for generating a variable electromagnetic field in the accommodating cavity along with vibration when the vibrating object vibrates. The induction coil 2 is used for inducing and generating alternating current when the magnetic beads vibrate to generate a changing electromagnetic field, and outputting voltage through a power supply end.
Implement the utility model discloses magnetoelectric vibration generator can forward the vibration energy in the airtight environment for the electric energy to provide sustainable independent power supply in airtight environment, in order to last the power supply to small-size electronic equipment.
Particularly, at first, generator housing 1 fixed mounting is on the vibration object, and generator housing's inside is equipped with holding chamber 11, has placed magnetic bead 3 in the holding chamber 11, because the cross-sectional area of magnetic bead is less than the cross-sectional area in holding chamber, consequently when the vibration object takes place to vibrate, the magnetic bead can follow the vibration object and vibrate in the holding intracavity to the magnetic field of production. Secondly, coil grooves 12 are formed in the outer surface of the generator shell, the number of the coil grooves is equal to that of the induction coils, the induction coils 2 are correspondingly arranged in the coil grooves 12 in a surrounding mode, two power supply ends 21 are led out of the induction coils, and when magnetic beads vibrate in the accommodating cavity and a changing electromagnetic field is generated; the magnetic flux of the induction coil is changed, so that induction current is generated in an induction manner and is output through the power supply end. Through above-mentioned two processes, the utility model discloses magnetoelectric vibration generator is with the vibration energy conversion electric energy of vibration object to make full use of vibration energy.
It should be noted that an important technical advantage of the magnetoelectric vibration generator of the present invention is that it can be applied in a closed environment, such as inside a closed vehicle tire. When the vehicle operation, through the utility model discloses magnetoelectric vibration generator rotates the tire, jolts the vibration energy conversion who produces under the circumstances such as turns into the electric energy to supply to install the wireless sensor who is used for detecting vehicle tyre pressure inside the tire equally and use.
The generator housing is made of a non-electromagnetically conductive material.
The generator casing made of the non-metallic material can reduce electromagnetic interference on the induction coil and improve the efficiency of converting vibration energy of the magnetic beads into electric energy.
When the number of the induction coils is two or more, the homonymous ends between the induction coils are connected, and the other two ends are the power supply ends.
By sequentially connecting the dotted terminals among the induction coils and taking the rest two ends as power supply ends, the output voltage can be effectively increased.
The outer surface of the generator shell 1 is also provided with a strip-shaped groove 13.
After the thin strip-shaped groove 13 is provided on the outer surface of the generator case 1, the connection lines between the induction coils can be arranged in the thin strip-shaped groove 13, thereby protecting the lines and simplifying the line arrangement work.
The magnetic beads are permanent rubidium iron boron magnets.
The permanent rubidium iron boron magnet can keep magnetism for a long time without frequent replacement.
The magnetic beads are spherical, and the accommodating cavity is cylindrical.
The cylindric holding chamber of magnetic bead cooperation of orb, the frictional force between effective less magnetic bead and the holding chamber to the reduction has lost the vibration energy because of magnetic bead and holding chamber friction each other, makes most vibration energy can both turn into the electric energy.
The cylindrical accommodating cavity is internally provided with a V-shaped groove 14.
Fig. 3 is a sectional view of the generator casing 1, and fig. 4 is a partially enlarged view of a portion a in fig. 3. Fig. 3 shows that 4V-shaped grooves are arranged in the cylindrical accommodating cavity, the directions of the V-shaped grooves are the same as those of the strip-shaped grooves 13, and the V-shaped grooves can limit the moving direction of the magnetic beads to a certain extent. Fig. 4 shows the shape of the V-groove, which can effectively reduce the air damping of the magnetic beads moving along the V-groove in the accommodating chamber 11.
The diameter of the bottom surface of the generator shell is 8mm, and the length is 31 mm.
Generator casing size is less, and convenient installation is for example carried out the device that detects to the tire pressure of vehicle tyre on various vibration objects, has contained small-size check out test set such as wireless sensor, and these equipment need last effectual power supply, through with the utility model discloses magnetoelectric vibration generator installs on the small-size electronic equipment that need last power supply of wireless sensor this type, solves the power supply problem.
The utility model discloses magnetoelectric vibration generator still includes energy storage capacitor, and energy storage capacitor's both ends pass through rectifier circuit with two power ends respectively and are connected.
Because the vibration energy of the vibrating object can not be converted into continuous and stable alternating current, when the vibration energy is generated, the converted electric energy can be stored in the energy storage capacitor, and the electric energy of the energy storage capacitor is reused for supplying power when needed.
In addition, the magnetoelectric vibration generator of the utility model can also comprise a rectifier bridge and a filtering energy storage capacitor. Two power supply ends led out by the induction coil are respectively connected with a first input end and a second input end of a rectifier bridge, and the output end of the rectifier bridge is connected with a filtering energy storage capacitor.
The rectifier bridge and the filtering energy storage capacitor are used for rectifying and filtering the current output by the power supply end, so that stable direct current is output for the electronic equipment to use, and meanwhile, the filtering energy storage capacitor can also play a role in energy storage.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (8)
1. A magnetoelectric vibration generator is characterized by comprising a generator shell, an induction coil and magnetic beads, wherein the generator shell is fixedly arranged on a closed vibration object, a containing cavity is arranged inside the generator shell, the magnetic beads are placed in the containing cavity, and the cross sectional area of the magnetic beads is smaller than that of the containing cavity so that the magnetic beads can move in the containing cavity;
the outer surface of the generator shell is provided with coil grooves, the number of the coil grooves is equal to that of the induction coils, the induction coils are correspondingly arranged in the coil grooves in a surrounding mode, and two power supply ends are led out of the induction coils.
2. The magnetoelectric vibration generator according to claim 1, wherein when there are two or more of the induction coils, the terminals of the same name between the induction coils are connected, and the other two terminals are the power supply terminals.
3. A magnetoelectric vibration generator according to claim 1, wherein the outer surface of the generator casing is further provided with a thin strip-shaped groove.
4. The magnetoelectric vibration generator according to claim 1, wherein the magnetic beads are permanent rubidium iron boron magnets.
5. The magnetoelectric vibration generator according to claim 1, wherein the magnetic beads are spherical and the accommodating chamber is a cylindrical accommodating chamber.
6. The magnetoelectric vibration generator according to claim 5, wherein a V-shaped groove is provided in the cylindrical housing chamber.
7. A magnetoelectric vibration generator according to claim 5, wherein the bottom surface of the generator case is 8mm in diameter and 31mm in length.
8. The magnetoelectric vibration generator according to claim 1, further comprising an energy storage capacitor, wherein both ends of the energy storage capacitor are respectively connected to the two power supply terminals through a rectifying circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021585138.XU CN212875637U (en) | 2020-08-03 | 2020-08-03 | Magnetoelectric vibration generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021585138.XU CN212875637U (en) | 2020-08-03 | 2020-08-03 | Magnetoelectric vibration generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212875637U true CN212875637U (en) | 2021-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021585138.XU Active CN212875637U (en) | 2020-08-03 | 2020-08-03 | Magnetoelectric vibration generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212875637U (en) |
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2020
- 2020-08-03 CN CN202021585138.XU patent/CN212875637U/en active Active
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