CN106787605A - A kind of contactless TRT and wheeled vehicle - Google Patents

Abstract

The present invention provides a non-contact power generation device and a wheeled vehicle, the device comprising: a casing, a rotor structure, a stator structure, an output terminal and a controller, wherein the stator structure and the rotor structure are located inside the casing The rotor structure includes a magnet holder, at least one magnet and a coil structure, the at least one magnet is placed outside the magnet holder and fixedly connected with the magnet holder, and the coil structure is built into the magnet In the fixing frame and fixedly connected with the magnet fixing frame, the coil structure is provided with an output end; the stator structure includes a magnetic core, and the magnetic core is located inside the coil structure; the controller is connected to the output The terminal is electrically connected to receive the current output by the output terminal. The invention also discloses a wheeled vehicle provided with a non-contact power generation device.

Description

A non-contact power generation device and wheeled vehicle

technical field

The invention relates to a non-contact power generating device and a wheeled vehicle.

Background technique

The induction generating device in the prior art is composed of a permanent magnet unit mounted on the rear wheel bar and rotating with the wheel, and a magnetic inductor fixed between the vertical fork and the flat fork and keeping a gap with the permanent magnet unit. When riding a bicycle, the two form an instantaneous magnetic circuit, thereby inducing electric pulses in the coil of the magnetic inductor, which are respectively rectified and filtered, and then superimposed and output together, so that there is no obvious resistance when riding, and it can be achieved during riding. In the process of walking, the magnet cuts the magnetic induction line to generate an induced electromotive force. However, the permanent magnet unit and the magnetic induction coil of the device are divided into two independent parts, and the permanent magnet unit is dispersed and fixed on the car bar. Therefore, the device forms an intermittent induced electromotive force, which does not have a good continuous change condition , even after rectification and filtering, it still cannot produce continuous variable DC voltage. At the same time, it has higher requirements in actual installation. In actual use, if you want to increase the induced electromotive force, there must be a certain distance between the permanent magnet and the magnetic induction coil, so you can only increase the magnetic field strength of the permanent magnet, but it will increase the difficulty of manufacturing and installation and cost increase. In addition, since the number of car bars is limited, it is impossible to increase the number of permanent magnets without limit in actual use, so the split design will inevitably affect the state of the induced electromotive force.

Contents of the invention

In view of this, the object of the present invention is to provide a non-contact power generation device and a wheeled vehicle in an attempt to solve or at least alleviate the above existing problems.

In the first aspect, an embodiment of the present invention provides a non-contact power generation device, which includes: a casing, a rotor structure, a stator structure, an output terminal and a controller, wherein,

the stator structure and the rotor structure are located inside the housing;

The rotor structure includes a magnet fixing frame, at least one magnet and a coil structure, the at least one magnet is externally placed on the magnet fixing frame and fixedly connected with the magnet fixing frame, and the coil structure is built into the magnet fixing frame In the frame and fixedly connected with the magnet holder, the coil structure is provided with an output end;

The stator structure includes a magnetic core disposed inside the coil structure;

The controller is electrically connected to the output end and used to receive the current output by the output end.

Optionally, in the device according to the present invention, a bearing is also included, the bearing includes an inner ring and an outer ring, the outer ring is fixedly connected to one end of the magnet holder, and the inner ring is connected to the stator structure Fixed connection.

Optionally, in the device according to the present invention, an outer cover is further included, the outer cover is connected with the housing, and the outer cover is located at an end away from the bearing.

Optionally, in the device according to the present invention, each of the magnets has an arc-shaped structure, and the magnetic field lines of each of the magnets point to the center of the circle in a radial direction.

Optionally, in the device according to the present invention, the coil structure includes an induction coil and a coil fixing part, and the coil fixing part includes a first circular ring, a second circular ring and connecting the first circular ring and the At least one support plate of the second ring, each of which is wound with the induction coil.

Optionally, in the device according to the present invention, the diameter of the first circular ring is larger than the diameter of the magnetic core, the second circular ring includes at least one arc, and the distance between each of the arcs is same.

Optionally, in the device according to the present invention, the induction coil includes a coil outputting two-phase electricity and a coil outputting three-phase electricity.

Optionally, in the device according to the present invention, the magnet fixing frame includes a bottom plate and a magnet fixing portion, one side of the bottom plate is connected to the magnet fixing portion, and the other side of the bottom plate is provided with a bayonet, the The bayonet is connected with the bearing.

Optionally, in the device according to the present invention, the material of the magnetic core includes iron-based amorphous.

In a second aspect, an embodiment of the present invention provides a wheeled vehicle, including a vehicle frame, a rear fork connected to the vehicle frame, and a wheel that rotates relative to the vehicle frame, and the wheel includes a hub, and also includes the above-mentioned A non-contact power generation device, the non-contact power generation device is located on the rear fork, and the non-contact power generation device is located near the hub, and the controller in the non-contact power generation device is arranged on the vehicle near the shelf.

According to the technical solution of the present invention, the hub can be magnetized by the magnet, and the traction magnet rotates around the outer ring of the bearing through the movement of the wheel, so that the magnet rotates at high speed and cuts the magnetic induction coil to generate current without contacting the hub. In addition, the casing provided in the present invention can seal the stator structure and the rotor structure to prevent dust or rainwater from affecting the power generation device.

In order to make the above-mentioned objects, features and advantages of the present invention more comprehensible, preferred embodiments will be described in detail below together with the accompanying drawings.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and thus It should be regarded as a limitation on the scope, and those skilled in the art can also obtain other related drawings based on these drawings without creative work.

FIG. 1 shows a structural diagram of a non-contact power generation device provided by an embodiment of the present invention;

Fig. 2 shows a structural diagram of a magnet holder provided by an embodiment of the present invention;

Fig. 3 shows a schematic cross-sectional view of a coil fixing part provided by an embodiment of the present invention;

Fig. 4 shows a schematic diagram of an induction coil winding method provided by an embodiment of the present invention;

FIG. 5 shows a voltage-time relationship diagram in an ideal state provided by an embodiment of the present invention.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

Fig. 1 shows a structural diagram of a non-contact power generation device according to an embodiment of the present invention. As shown in FIG. 1 , the device includes: a housing 110 , a rotor structure 120 , a stator structure 130 , an outer cover 140 , an output terminal and a controller. Wherein, the output terminal and the controller are not shown in the figure.

The rotor structure 120 and the stator structure 130 are located inside the casing 110, which is generally cylindrical in shape, and the material of the casing 110 can include polycarbonate plastic (PC plastic) and acrylonitrile-butadiene-styrene plastic (ABS resin Plastic), etc., the above-mentioned materials have characteristics such as impact resistance, heat resistance, low temperature resistance, and chemical resistance. The above casing can protect the rotor structure and the stator structure, and can effectively prevent dust, rain, etc. from affecting the magnets, etc. However, it should be understood that the present invention is not limited by the shape and material of the shell, and all shapes and materials that can realize the function of the shell are within the protection scope of the present invention.

The rotor structure 120 and the stator structure 130 are fixedly connected through a bearing 150 . Wherein, the bearing 150 includes an inner ring and an outer ring, the inner ring is fixedly connected with the stator structure 130 , and the outer ring is fixedly connected with the rotor structure 120 .

The rotor structure 120 includes a magnet holder 122 , at least one magnet 124 and a coil structure 126 .

Each magnet 124 has an arc-shaped structure, and the magnetic induction line of each magnet 124 points to the center of the circle along the radial direction. Each magnet 124 is arranged on the outside of the magnet fixing frame 122 and is fixedly connected with the magnet fixing frame 122. For example, the magnets are fixed on the magnet fixing frame by pasting, and each magnet 124 is a permanent magnet. In one embodiment, the number of magnets 124 in the rotor structure 120 can be 6, and each magnet 124 is an arc-shaped structure, and all the magnets 124 are evenly arranged on the magnet fixing frame 122, and there is a gap between the magnets. A certain distance, the distance between adjacent magnets is equal. It should be noted here that the above examples are only illustrative, and the number of magnets, magnets and magnet holders should be set according to actual conditions. It should be understood that all ways that can realize the connection between magnets and magnet holders are within the protection scope of the present invention Inside.

Fig. 2 shows a structural diagram of a magnet fixing frame provided according to an embodiment of the present invention.

As shown in Figure 2, the magnet fixing frame 122 includes a bottom plate 1242 and a magnet fixing portion 1244, one side of the bottom plate 1242 is connected to the magnet fixing portion 1244, and the other side of the bottom plate 1242 is provided with a bayonet 1246, the bayonet 1246 is connected to the outer ring of the bearing 150 Connection, the diameter of the bayonet 1246 is similar to the diameter of the outer ring of the bearing 150, but the diameter of the bayonet 1246 is slightly larger than the diameter of the outer ring of the bearing 150, for example, the diameter of the bayonet 1246 can be 1 mm larger than the diameter of the outer ring of the bearing 150 -3 mm, so that the bearing 150 can be stuck in the bayonet 1246 without falling off. In one embodiment, the bearing 150 can be fixed in the bayonet 1246 by sticking. However, it should be understood that the connection manner of the bayonet socket and the bearing is schematic, and the present invention is not limited thereto.

Fig. 3 shows a schematic cross-sectional view of a coil fixing part provided according to an embodiment of the present invention.

The coil structure 126 includes an induction coil and a coil fixing part. The structure of the coil fixing part can refer to FIG. 320 of at least one support plate 330 .

The diameter of the first circular ring 310 is larger than the diameter of the magnetic core 130 , preferably, the diameter of the first circular ring 310 is larger than the diameter of the magnetic core 130 by 0.5mm-3mm. The second circular ring 320 includes at least one arc, each of which is parallel to the first circular ring 310 , the arcs are evenly distributed on the periphery of the first circular ring 310 , and the distance between each of the arcs is the same. The support plate 330 is a rectangular thin plate, and its thickness may be, for example, 1mm-3mm. However, it should be understood that the above examples are only illustrative, and the present invention is not limited thereto.

Wherein, the length of the first circular ring 310 is the same as the length of the arc piece, the length of the support plate 330 is less than the length of the first circular ring 310, preferably, the length of the support plate 330 should be 2/3 of the length of the first circular ring 310 . The supporting plate 330 is disposed outside the first circular ring 310 along the radial direction of the first circular ring 310 , and the supporting plate 330 may be disposed at a central position of the first circular ring 310 in the longitudinal direction.

Each support plate 330 is wound with an induction coil. The induction coil is generally a coil that outputs two-phase electricity and a coil that outputs three-phase electricity.

Fig. 4 shows a schematic diagram of a winding manner of an induction coil according to an embodiment of the present invention.

In one embodiment and with reference to FIG. 4 , the coil fixing part 300 includes 12 arc pieces, each of which is provided with a label 1-12, and the induction coil wound on the support plate 330 is a coil for outputting three-phase electricity, respectively a, b and c represent electric wires, electric wire a is wound on support plates marked 3, 6, 9, 12, electric wire b is wound on support plates marked 2, 5, 8, 11, electric wire c is wound on support plates marked 1, Refer to Figure 4 for the orientation of the wires on the support plates 4, 7, and 10. However, in practical applications, the number of arcs and the selection of coils can be determined according to actual conditions, and the above examples are only illustrative, and the present invention is not limited thereto.

The induction coil in the coil structure 126 is provided with output ends, and the number of output ends will be different according to the different winding methods of the induction coil. For example, when the induction coil is a coil that outputs two-phase electricity, the number of output terminals is four, and when the induction coil is a coil that outputs three-phase electricity, the number of output terminals is six.

The stator structure 130 includes a magnetic core, the magnetic core is located inside the coil structure 126 , the diameter of the magnetic core is smaller than the diameter of the first ring 310 in the coil structure 126 , and the magnetic core is not in contact with the rotor structure 120 . The material of the magnetic core includes silicon steel, sendust, iron-based amorphous, etc., and can also be soft magnetic material ferric oxide (iron powder core). However, it should be understood that the material of the magnetic core is not limited thereto, and all materials that can be used for the structure and function of the stator are within the protection scope of the present invention.

The outer cover 140 is arranged on the end of the shell 110 away from the bearing, and the shell 140 may be provided with a plurality of circular holes, the output ends of the coil structure 126 are located in the circular holes, the number of the circular holes is the same as the number of the output ends, and the diameter of the circular holes is suitable. at the stuck output. The diameter and number of the circular holes are not limited here.

The output end of the coil structure 126 is electrically connected to the controller, and the controller is used to receive the current output by the output end, rectify and store the current. The current stored in the controller can power, for example, a smart lock in a bicycle.

The invention also discloses a bicycle. The bicycle includes a frame, a rear fork connected with the frame, and a wheel rotating relative to the frame. The wheel includes a hub, and the non-contact power generation device is located on the rear fork. Located near the hub, the controller in the non-contact power generation device is arranged near the frame.

In a specific application, the power generating device can be arranged on the bicycle near the hub, preferably on the rear fork of the wheel. The magnets in the device are close to the outer surface of the wheel hub, but there is a small distance without contact. The rotational movement of the magnet group is to generate a tangential force on it through the movement of the wheel hub, and the traction magnet rotates around the outer ring of the bearing. The wheel hub diameter of wheeled vehicles is much larger than the diameter of the magnet group, so the wheeled vehicle can pull the magnet group to rotate at a high speed and cut the magnetic induction coil at a low riding speed, so that the wheeled vehicle can obtain enough high speed when riding at a low speed. The induced electromotive force of the permanent magnet group is a continuous cutting magnetic induction coil. Therefore, in addition to the change in the direction and size of the induced electromotive force, the induced electromotive force has the characteristics of continuity. In an ideal state, the voltage-time generated when the wheel rotates Figure 5 can be referred to.

In addition, after the controller receives the voltage value generated by the power generating device, it calculates the deformed voltage value based on the difference between the voltage value and the voltage threshold value stored in the controller, or calculates the deformed voltage value based on the ratio of the voltage value to the target voltage threshold value . Judging whether the deformation voltage value is greater than or equal to the wheel deformation voltage threshold, if the deformation voltage value is greater than or equal to the wheel deformation voltage threshold, it proves that the wheel is deformed.

After it is determined that the wheel is deformed, the coded information and location information of the wheeled vehicle can be transmitted to the background server through the communication module set in the bicycle, so that the staff can repair the vehicle as soon as possible after receiving the information. Or, after it is determined that the wheels of the current vehicle are deformed, the user is reminded that the current vehicle has a fault through the warning device installed on the vehicle, so that the user can replace the vehicle.

In one embodiment, the bicycle is provided with a communication module such as a GSM module and a positioning module such as a GPS module. After the wheel is found to be deformed, the GPS module can be used to locate the vehicle's position information, and the GSM module can be used to convert the vehicle's encoding information and position information. transmitted to the background server. After the background server receives the above information, it can inform the staff to carry out maintenance through a voice broadcast such as "XXXX number bicycle failure on XX road in XX district". At the same time, a warning device can also be set on the bicycle. The user can be alerted by, for example, a "flashing yellow light", or by sound.

According to the technical solution of the present invention, the hub can be magnetized by the magnet, and the traction magnet rotates around the outer ring of the bearing through the movement of the wheel, so that the magnet rotates at high speed and cuts the magnetic induction coil to generate current without contacting the hub. In addition, the casing provided in the present invention can seal the stator structure and the rotor structure to prevent dust or rainwater from affecting the power generation device.

A non-contact power generation device provided by an embodiment of the present invention may be specific hardware on a device or software or firmware installed on the device. The implementation principles and technical effects of the device provided by the embodiment of the present invention are the same as those of the foregoing method embodiment. For brief description, for the parts not mentioned in the device embodiment, reference may be made to the corresponding content in the foregoing method embodiment. Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described systems, devices, and units can refer to the corresponding processes in the above-mentioned method embodiments, and will not be repeated here.

In the embodiments provided in the present invention, it should be understood that the disclosed devices and methods may be implemented in other ways. The device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some communication interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments provided by the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes. .

It should be noted that like numerals and letters denote similar items in the following drawings, therefore, once an item is defined in one drawing, it does not require further definition and explanation in subsequent drawings, In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

Finally, it should be noted that: the above-described embodiments are only specific implementations of the present invention, used to illustrate the technical solutions of the present invention, rather than limiting them, and the scope of protection of the present invention is not limited thereto, although referring to the foregoing The embodiment has described the present invention in detail, and those skilled in the art should understand that any person familiar with the technical field can still modify the technical solutions described in the foregoing embodiments within the technical scope disclosed in the present invention Changes can be easily imagined, or equivalent replacements can be made to some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention. All should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1. A non-contact power generation device, characterized in that the device comprises: a housing, a rotor structure, a stator structure, an output terminal and a controller, wherein, the stator structure and the rotor structure are located inside the housing; The rotor structure includes a magnet fixing frame, at least one magnet and a coil structure, the at least one magnet is externally placed on the magnet fixing frame and fixedly connected with the magnet fixing frame, and the coil structure is built into the magnet fixing frame In the frame and fixedly connected with the magnet holder, the coil structure is provided with an output end; The stator structure includes a magnetic core disposed inside the coil structure; The controller is electrically connected to the output end and used to receive the current output by the output end. 2. The device according to claim 1, further comprising a bearing, the bearing comprising an inner ring and an outer ring, the outer ring is fixedly connected to one end of the magnet holder, and the inner ring is connected to the magnet holder. The stator structure is fixedly connected. 3. The device according to claim 2, further comprising an outer cover, the outer cover is connected to the housing, and the outer cover is located at an end away from the bearing. 4. The device according to claim 1, wherein each of the magnets has an arc-shaped structure, and the magnetic field lines of each of the magnets point to the center of the circle in a radial direction. 5. The device according to claim 1, wherein the coil structure comprises an induction coil and a coil fixing part, and the coil fixing part comprises a first ring, a second ring and a ring connecting the first ring. and at least one support plate of the second ring, each of the support plates is wound with the induction coil. 6. The device according to claim 5, wherein the diameter of the first circular ring is larger than the diameter of the magnetic core, and the second circular ring includes at least one arc, and each of the arcs is same distance between. 7. The device according to claim 5, wherein the induction coil comprises a coil outputting two-phase electricity and a coil outputting three-phase electricity. 8. The device according to claim 2, wherein the magnet fixing frame comprises a base plate and a magnet fixing portion, one side of the base plate is connected to the magnet fixing portion, and the other side of the base plate is provided with a bayonet , the bayonet is connected with the bearing. 9. The device according to claim 1, wherein the material of the magnetic core comprises iron-based amorphous. 10. A wheeled vehicle, comprising a vehicle frame, a rear fork connected to the vehicle frame, and a wheel rotating relative to the vehicle frame, the wheel comprising a hub, characterized in that it also includes the vehicle according to claims 1-9 According to any one of the non-contact power generation devices, the non-contact power generation device is located on the rear fork, and the non-contact power generation device is located near the hub, and the non-contact power generation device is The controller is arranged near the vehicle frame.