A power supply system installed on a rotating object

Abstract

The present invention discloses a power supply system installed on a rotating object, comprising: a power generation device; a power management device for converting the electricity output by the power generation device to adapt to the load requirements, the power generation device comprises a rotor installed and fixed on the rotating object, the rotor comprises at least one induction coil; a stator rotatable relative to the rotor, the stator comprises at least two magnetic poles; the stator comprises a stator housing and a counterweight, the stator housing surrounds the rotor from the circumference of the rotor and is circumferentially closed; the counterweight is fixed to one side of the stator housing, and the angular range of the counterweight in the circumferential direction is less than or equal to 180 degrees. The power supply system installed on a rotating object of the present invention can continuously and reliably supply power to electronic products on the rotating object.

Description

Technical Field

[0001] The present invention relates to the technical field of power generation and power supply, and in particular to a power supply system installed on a rotating object. Background Art

[0002] With the development of economy and the progress of science and technology, smart transportation has become an important development direction of human life. How to dynamically obtain information of various vehicle components is an important part of smart transportation. For example, obtaining information of wheels during driving can make vehicle driving safer. For another example, a display screen can be installed on the side of the wheel to display the information required by the driver.

[0003] However, since the current facilities and display screens for obtaining wheel information are all electronic products, they all need to rely on electricity to work. As the wheels are constantly moving, it is difficult to provide continuous and reliable power supply. Summary of the invention

[0004] In view of this, an embodiment of the present invention is intended to provide a power supply system installed on a rotating object, which can continuously and reliably supply power to electronic products on the wheel.

[0005] To achieve the above object, an embodiment of the present invention provides a power supply system installed on a rotating object, the power supply system comprising:

[0006] Power generation equipment;

[0007] A power management device for converting the electricity output by the power generation device to adapt to the load requirements; wherein the power generation device comprises:

[0008] A rotor mounted and fixed to the rotating object, the rotor comprising at least one induction coil;

[0009] a stator rotatable relative to the rotor, the stator comprising at least two magnetic poles;

[0010] The stator comprises a stator housing and a counterweight block, wherein the stator housing surrounds the rotor circumferentially and is circumferentially closed; the counterweight block is fixed to one side of the stator housing, and the angular range of the counterweight block in the circumferential direction is less than or equal to 180 degrees;

[0011] When the rotating object rotates, the rotor rotates along with the rotating object, and the stator remains stationary under the action of the gravity of the counterweight.

[0012] In the above solution, the counterweight is made of tungsten alloy.

[0013] In the above solution, the stator housing includes a base ring and at least two magnetic pole blocks, and the magnetic pole blocks are evenly fixed to the inner wall of the base ring by an adhesive.

[0014] In the above scheme, the magnetic pole blocks are distributed on the inner wall of the base ring in a wave shape, and each wave crest in the wave shape includes a magnetic pole block; the magnetic pole blocks are evenly distributed on the circumference of the inner wall of the base ring.

[0015] In the above scheme, the rotor also includes a rotor core, which includes at least two coil slots for accommodating induction coils, and each of the induction coils is wound in two or more adjacent coil slots; the side walls in each of the coil slots are inwardly concave arc surfaces; the number of the coil slots is adapted to the number of the magnetic pole blocks.

[0016] In the above solution, the magnetic pole block is made of neodymium iron boron, and the induction coil is made of pure copper wire.

[0017] In the above scheme, the power management device includes a conversion component for converting and transforming the electricity output by the power generation device, and the conversion component includes a rectifier bridge for converting the electricity output by the power generation device into direct current and a switching power supply for reducing the voltage of the current output by the rectifier bridge; one end of the rectifier bridge is connected to the power generation device, one end of the switching power supply is connected to the rectifier bridge, and the other end is connected to the load.

[0018] In the above scheme, the power management device also includes a monitoring component and a control component for monitoring the voltage of the electricity output by the switching power supply. The measuring end of the monitoring component is connected to the output line of the switching power supply, and the conversion component and the monitoring component are both connected to the control component.

[0019] In the above scheme, the power management device also includes a battery for storing the electricity output by the power generation device, and the input end of the battery is connected to the switching power supply; the battery includes multiple output ends, and the output end of the battery is connected to the load; the measuring end of the monitoring component is connected to the wire between the battery and the load.

[0020] In the above solution, the output end of the battery also includes a MOS tube that automatically shuts off the power output under preset conditions.

[0021] The power supply system installed on a rotating object according to an embodiment of the present invention comprises: a power generation device; a power management device for transforming the electricity output by the power generation device to adapt to the load requirements, the power generation device comprises a rotor installed and fixed on the rotating object, the rotor comprises at least one induction coil; a stator rotatable relative to the rotor, the stator comprises at least two magnetic poles; the stator comprises a stator housing and a counterweight, the stator housing surrounds the rotor from the circumference of the rotor and is circumferentially closed; the counterweight is fixed to one side of the stator housing, and the angular range of the counterweight in the circumferential direction is less than or equal to 180 degrees. It can be seen that the power supply system installed on a rotating object according to the embodiment of the present invention, by arranging a counterweight on the stator, keeps the stator stationary when the rotating object rotates, ensures the normal operation of the power generation device, and can transform the electricity output by the power generation device to adapt to the load requirements, and can continuously and reliably supply power to the electronic products on the rotating object.

[0022] Other beneficial effects of the embodiments of the present invention will be further described in the specific implementation manner in conjunction with the specific technical solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for use in the description of the embodiments. It should be understood that the drawings described below are only part of the drawings of the embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 is a schematic diagram of a power supply system installed on a wheel according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of a power supply system installed on a wheel according to an embodiment of the present invention;

[0026] Figure 3 A schematic diagram of a power generation device installed in a power supply system of a wheel according to an embodiment of the present invention;

[0027] Figure 4 for Figure 3 Schematic diagram of the front projection of

[0028] Figure 5 for Figure 3 Schematic diagram of side projection;

[0029] Figure 6 for Figure 3 Schematic diagram of the back projection of ;

[0030] Figure 7 Schematic diagram of a rotor core installed in a power supply system of a wheel according to an embodiment of the present invention. DETAILED DESCRIPTION

[0031] An embodiment of the present invention provides a power supply system installed on a rotating object, the power supply system comprising:

[0032] Power generation equipment;

[0033] A power management device for converting the electricity output by the power generation device to adapt to the load requirements; wherein the power generation device comprises:

[0034] A rotor mounted and fixed to the rotating object, the rotor comprising at least one induction coil;

[0035] a stator rotatable relative to the rotor, the stator comprising at least two magnetic poles;

[0036] The stator comprises a stator housing and a counterweight block, wherein the stator housing surrounds the rotor circumferentially and is circumferentially closed; the counterweight block is fixed to one side of the stator housing, and the angular range of the counterweight block in the circumferential direction is less than or equal to 180 degrees;

[0037] When the rotating object rotates, the rotor rotates along with the rotating object, and the stator remains stationary under the action of the gravity of the counterweight.

[0038] The power supply system installed on a rotating object in an embodiment of the present invention provides a counterweight block on the stator so that the stator remains stationary when the rotating object rotates, thereby ensuring the normal operation of the power generation device and being able to transform the electricity output by the power generation device to adapt to load requirements, thereby being able to continuously and reliably power the electronic products on the rotating object.

[0039] The rotating object here mainly refers to an object rotating in the vertical direction, such as the wheels of a vehicle, so that the gravity of the stator counterweight can play the greatest role. Of course, it is not limited to objects rotating in the vertical direction, such as objects rotating in an inclined direction or even in a horizontal direction, as long as the speed is not high.

[0040] Furthermore, the stator remains stationary under the action of the gravity of the counterweight, which means that it remains stationary most of the time. It may rotate for a short time when the wheel starts to rotate, when there is a sudden acceleration or when the road is bumpy, but this situation does not affect the power generation function.

[0041] In other embodiments of the present invention, the counterweight block can be made of tungsten alloy. Tungsten alloy has a relatively large specific gravity, can generate greater gravity, and makes the stator more stable, which is a better implementation method. More specifically, the counterweight block can be a high-density tungsten alloy, that is, tungsten is used as the matrix, and a small amount of Ni, Co, Mo and other elements are added therein. It is a typical two-phase alloy, also known as a high-density tungsten alloy. Those skilled in the art will understand that the counterweight block can also be made of other materials with a large specific gravity.

[0042] In some other embodiments of the present invention, the stator housing may include a base ring and at least two magnetic pole blocks, and the magnetic pole blocks are evenly fixed to the inner wall of the base ring by an adhesive. More magnetic poles can generate more magnetic lines of force, and the entire magnetic ring is divided into multiple magnetic pole blocks for separate manufacturing, which is more manufacturable and is a better implementation method. Specifically, the base ring can be made of high magnetic permeability cold-rolled silicon steel sheets.

[0043] In some other embodiments of the present invention, the magnetic pole blocks may be distributed in a wave shape on the inner wall of the base ring, each wave crest in the wave shape includes a magnetic pole block; the magnetic pole blocks are evenly distributed on the circumference of the inner wall of the base ring. The wave shape design is more adaptable to the induction of the induction coil and is a better implementation method.

[0044] In some other embodiments of the present invention, the rotor further comprises a rotor core, the rotor core comprises at least two coil slots for accommodating induction coils, each of the induction coils is wound in two or more adjacent coil slots, the number of the coil slots is adapted to the number of the magnetic pole blocks; the side walls in each of the coil slots are inwardly concave arc surfaces. Here, the inwardly concave arc surfaces of the coil slot side walls have a gathering effect on the coil wires, making the turns of the coils tighter and less magnetic leakage, which is a better implementation.

[0045] In other embodiments of the present invention, the rotor core may include twelve coil slots, the induction coils include three, each wound in ten adjacent coil slots, and the inlet and outlet wires of the three induction coils are staggered by one coil slot in sequence; thus, the current directions of the three induction coils are different, that is, three-phase electricity. Three-phase electricity is a widely used form of electric energy, which is easier to convert and transmit, and is a better implementation method.

[0046] In other embodiments of the present invention, the magnetic pole block may be made of neodymium iron boron. Neodymium iron boron has a relatively large magnetic energy product, that is, it can generate a larger magnetic field per unit volume, which makes the power generation efficiency of the power generation device higher and is a better implementation method.

[0047] In some other embodiments of the present invention, the induction coil may be made of pure copper wire, which has better conductivity and can reduce the heat generated by the power generation device, and is a better implementation method.

[0048] In other embodiments of the present invention, the power management device may include a conversion component for converting and transforming the electricity output by the power generation device, and the conversion component includes a rectifier bridge for converting the electricity output by the power generation device into direct current and a switching power supply for reducing the voltage of the current output by the rectifier bridge; one end of the rectifier bridge is connected to the power generation device, one end of the switching power supply is connected to the rectifier bridge, and the other end is connected to the load. Since electronic products generally use direct current and the voltage is relatively low, the conversion component can better adapt to electronic products and is a better implementation method.

[0049] In some other embodiments of the present invention, the power management device may also include a monitoring component and a control component for monitoring the voltage of the electricity output by the switching power supply, the measuring end of the monitoring component is connected to the output line of the switching power supply, and the conversion component and the monitoring component are both connected to the control component. In this way, the output of electric energy and the electric energy input to the load can be made more stable, which is a better implementation method. Here, the measuring end of the monitoring component is connected to the output line of the switching power supply, or the measuring end of the monitoring component is connected to the input line of the load, because the output line of the switching power supply and the input line of the load are connected.

[0050] In some other embodiments of the present invention, the power management device may further include a battery for storing the electricity output by the power generation device, the input end of the battery is connected to the switching power supply; the battery includes multiple output ends, the output end of the battery is connected to the load; the measuring end of the monitoring component is connected to the wire between the battery and the load. In this way, since the electric energy is stored, the load power consumption is more stable, which is a better implementation. Specifically, the battery can be a lithium battery.

[0051] In other embodiments of the present invention, the output end of the battery also includes a metal-oxide-semiconductor field-effect transistor (MOS) that automatically shuts down the output of electric energy under preset conditions. The MOS tube is a voltage-controlled element. Its conduction is like a triode in a saturated state. The voltage drop of the conduction junction is minimal. It can be turned on as long as the required voltage is provided, and it will be turned off when the control voltage is removed. It is a very good switch. Turning it on or off has a relatively small impact on the entire circuit, and it is a better implementation method.

[0052] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the embodiments described below are only part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on these embodiments without creative work belong to the scope of protection of the present invention.

[0053] This embodiment provides a power supply system installed on a wheel, but those skilled in the art will appreciate that the power supply system of this embodiment may also be installed on other rotating objects.

[0054] like Figure 1 , 2 As shown, the power supply system installed on the rotating object includes: a power generation device 10 and a power management device 20; the power management device 20 is used to transform the electricity output by the power generation device to adapt to the load requirements.

[0055] like Figure 3-7 As shown, the power generation device includes a rotor and a stator. The rotor is mounted and fixed to the wheel (not shown in the figure), and the stator can rotate relative to the rotor, and the rotation center is the axis of the rotor.

[0056] The stator includes 12 magnetic poles, which can form many magnetic lines of force. The stator includes a stator housing 101 and a counterweight 102. The stator housing 101 surrounds the rotor circumferentially and is circumferentially closed. The counterweight 102 is fixed to one side of the stator housing 101. The circumferential angle range of the counterweight 102 is 180 degrees.

[0057] The rotor includes three induction coils 103 .

[0058] Those skilled in the art will appreciate that, in other embodiments of the present invention, the induction coil 103, the number of magnetic poles, and the angular range of the counterweight 102 in the circumferential direction are not limited to those described above.

[0059] The counterweight 102 is made of tungsten alloy, which can generate greater gravity and make the stator more stable.

[0060] The stator housing includes a base ring 1011 and 12 magnetic pole blocks 1012, and the magnetic pole blocks 1012 are evenly fixed to the inner wall of the base ring 1011 by adhesive. The magnetic pole blocks 1012 are distributed in a wave shape on the inner wall of the base ring, and each wave in the wave shape includes a magnetic pole block 1012; the magnetic pole blocks 1012 are evenly distributed on the circumference of the inner wall of the base ring.

[0061] The rotor further includes a rotor core 104, and the rotor core 104 includes twelve coil slots 1041. Each of the induction coils 103 is respectively wound in ten adjacent coil slots 1041, and the inlet and outlet wires of the three induction coils 103 are staggered by one coil slot in sequence. The three induction coils 103 are A, B, and C respectively. Since the induction coils 103 have inlet wires and outlet wires, they are A inlet wire, A outlet wire, B inlet wire, B outlet wire, C inlet wire, and C outlet wire. Specifically, the side walls in each of the coil slots 1041 are arc surfaces that are curved in the circumferential direction. This makes the turns of the coils tighter and reduces magnetic leakage.

[0062] Wherein, the magnetic pole block 1012 is made of neodymium iron boron, which generates a stronger magnetic field and improves power generation efficiency.

[0063] The induction coil 103 is made of pure copper wire, which has higher conductivity and can reduce the heat generated by the power generation device.

[0064] Among them, Figure 2 As shown, the power management device 20 includes a conversion component 201 for converting and transforming the electricity output by the power generation device 10, and the conversion component 201 includes a rectifier bridge (not shown in the figure) for converting the electricity output by the power generation device 10 into direct current and a switching power supply (not shown in the figure) for reducing the voltage of the current output by the rectifier bridge; one end of the rectifier bridge is connected to the power generation device 10, one end of the switching power supply is connected to the rectifier bridge, and the other end is connected to the load 30.

[0065] The power management device 20 further includes a monitoring component 202 and a control component 203 for monitoring the voltage of the electricity output by the switching power supply. The measuring end of the monitoring component 202 is connected to the output line of the switching power supply. The conversion component 201 and the monitoring component 202 are both connected to the control component 203.

[0066] The power management device 20 further includes a battery 204 for storing the power output by the power generation device 10, the input end of the battery 204 is connected to the switching power supply; the battery 204 includes a plurality of output ends, the output end of the battery 204 is connected to the load 30; the measuring end of the monitoring component 202 is connected to the wire between the battery 204 and the load 30. In this embodiment, the battery is a polymer lithium battery.

[0067] The output end of the storage battery 204 further includes a MOS tube (not shown in the figure) which automatically shuts down the output of electric energy under preset conditions.

[0068] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0069] In the description of the embodiments of the present invention, unless otherwise specified and limited, the term "connection" should be understood in a broad sense. For example, it can be an electrical connection or a connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0070] The terms "first\second\third" involved in the embodiments of the present invention are only used to distinguish similar objects and do not represent a specific ordering of the objects. It can be understood that "first\second\third" can be interchanged in a specific order or sequence if permitted.

[0071] It should be understood that "one embodiment" or "some embodiments" mentioned throughout the specification means that specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present invention. Therefore, "in one embodiment" or "in some embodiments" appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in various embodiments of the present invention, the size of the serial number of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention. The serial numbers of the above-mentioned embodiments of the present invention are for description only and do not represent the advantages and disadvantages of the embodiments.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A power supply system installed on a rotating object, characterized in that: The power supply system comprises: Power generation equipment; A power management device for converting the power outputted by the power generation device to meet the load requirements; wherein, The power generation device comprises: A rotor mounted and fixed to the rotating object, the rotor comprising at least one induction coil; a stator rotatable relative to the rotor, the stator comprising at least two magnetic poles; The stator comprises a stator housing and a counterweight block, wherein the stator housing surrounds the rotor circumferentially and is circumferentially closed; the counterweight block is fixed to one side of the stator housing, and the angular range of the counterweight block in the circumferential direction is less than or equal to 180 degrees; When the rotating object rotates, the rotor rotates with the rotation of the rotating object, and the stator remains stationary under the action of the gravity of the counterweight; The rotor further comprises a rotor core, wherein the rotor core comprises at least two coil slots for accommodating induction coils, each of the induction coils is wound in two or more adjacent coil slots; the side wall in each of the coil slots is an inwardly concave arc surface; The power management device further includes a storage battery for storing the electricity output by the power generation device, and a plurality of the storage batteries are circumferentially arranged outside the battery management device.

2. The power supply system installed on a rotating object according to claim 1, characterized in that: The counterweight is made of tungsten alloy.

3. The power supply system installed on a rotating object according to claim 2, characterized in that: The stator housing comprises a base ring and at least two magnetic pole blocks, and the magnetic pole blocks are evenly fixed to the inner wall of the base ring by adhesive.

4. The power supply system installed on a rotating object according to claim 3, characterized in that: The magnetic pole blocks are distributed in a wave shape on the inner wall of the base ring, and each wave crest in the wave shape includes a magnetic pole block; the magnetic pole blocks are evenly distributed on the circumference of the inner wall of the base ring.

5. The power supply system installed on a rotating object according to claim 4, characterized in that: The number of the coil slots is adapted to the number of the magnetic pole blocks.

6. The power supply system installed on a rotating object according to claim 5, characterized in that: The magnetic pole block is made of neodymium iron boron, and the induction coil is made of pure copper wire.

7. The power supply system installed on a rotating object according to claim 1, characterized in that: The power management device includes a conversion component for converting and transforming the electricity output by the power generation device, and the conversion component includes a rectifier bridge for converting the electricity output by the power generation device into direct current and a switching power supply for reducing the voltage of the current output by the rectifier bridge; one end of the rectifier bridge is connected to the power generation device, one end of the switching power supply is connected to the rectifier bridge, and the other end is connected to the load.

8. The power supply system installed on a rotating object according to claim 7, characterized in that: The power management device also includes a monitoring component and a control component for monitoring the voltage of the electricity output by the switching power supply. The measuring end of the monitoring component is connected to the output line of the switching power supply, and the conversion component and the monitoring component are both connected to the control component.

9. The power supply system installed on a rotating object according to claim 8, characterized in that: The input end of the battery is connected to the switching power supply; the battery includes a plurality of output ends, and the output ends of the battery are connected to a load; the measuring end of the monitoring component is connected to a wire between the battery and the load.

10. The power supply system installed on a rotating object according to claim 9, characterized in that: The output end of the storage battery also includes a MOS tube which automatically shuts off the power output under preset conditions.

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