Charge flyback braking energy recovery device

Abstract

The present invention mainly discloses a charge flyback type braking energy recovery device, which includes a bearing connected to power input, several rotating disks and fixed plates with planes perpendicular to the axis direction of the power input bearing and stacked staggeredly at a very small distance. Conductive films that can be respectively charged with positive and negative charges are arranged staggeredly on the plane of the rotating disk; several pairs of conductive films conducted by a transformer are arranged on the plane of the fixed plate; when the recovered kinetic energy drives the rotating disk, when the conductive films with positive and negative charges move at a very small distance above the conductive films conducted by the transformer on the plane of the fixed plate, a braking effect is generated due to the attractive force formed by the positive and negative electric fields; when the recovered kinetic energy drives the rotating disk, drifting charges are generated due to the continuous change of the electric field, and the voltage formed by the drifting charges is extracted through the transformer to achieve the function of energy recovery.

Description

[0001] Technical Field: The present invention relates to a braking energy recovery device; in particular, to a charge flyback braking energy recovery device that utilizes the recovered kinetic energy to cause a change in the electric field above the surfaces of two conductive films connected by a transformer, and generates a braking effect due to the attraction formed by the positive and negative electric fields; when the electric field changes continuously, the drift charges generated are converted into voltage output through the transformer to achieve the kinetic energy recovery effect. Background Art:

[0002] It is known that, for example, a typical device disclosed in British Patent Information Retrieval No. GB2462489A announced on February 17, 2010, includes a flywheel kinetic energy recovery storage device.

[0003] For example, a typical device disclosed in US Patent Information Retrieval No. US10480159 announced on November 19, 2019, includes a kinetic energy recovery system for a machine.

[0004] For example, a typical device disclosed in US Patent Information Retrieval No. US10211702 announced on February 19, 2019, includes an electric generator integrated with a differential.

[0005] For example, a typical device disclosed in US Patent Information Retrieval No. US9825557 announced on November 21, 2017, includes a pulse generator and a generator set.

[0006] For example, a typical device disclosed in US Patent Information Retrieval No. US9527375 announced on December 27, 2016, includes a power transmission system having a motor regenerative braking mode based on a gearbox.

[0007] For example, a typical device disclosed in US Patent Information Retrieval No. US8536760 announced on September 17, 2013, includes a spherical generator. Summary of the Invention:

[0008] Known braking energy recovery devices are limited to several functions. For example, such devices conduct the recovered kinetic energy to an electric motor originally for power output. By rotating the coil inside the electric motor, a reverse current is generated through electromagnetic induction for power recovery and storage. When this electric motor originally for power output is connected and rotated with the recovered kinetic energy, due to the relatively large moment of inertia of the coil and iron core inside the electric motor during rotation, the reaction force affects the stability of the braking ability. Moreover, it is difficult to control the magnitude of the induced electromotive force generated by electromagnetic induction in the internal coil at low speeds. A stable voltage can only be generated when the speed is higher than a specific speed range, resulting in poor kinetic energy recovery efficiency in the low-speed range. Therefore, an additional speed-changing gear or an attached generator is required to increase the speed before it can be used as a kinetic energy recovery device, which also increases the overall weight and energy consumption. Another braking energy recovery device conducts the recovered kinetic energy to a mechanical inertial flywheel through a clutch and uses the rotational kinetic energy generated when driving the inertial flywheel to rotate as mechanical kinetic energy storage. This method of mechanical kinetic energy storage in the inertial flywheel can only store mechanical kinetic energy in the high-speed region. The high-speed flywheel is used to drive a vehicle with a slower traveling speed to reduce fuel consumption. Therefore, the overall braking energy recovery efficiency is limited, and the externally attached inertial flywheel must have a certain mass to store effective mechanical kinetic energy, which also increases the overall weight, reduces the power output efficiency, and increases energy consumption.

[0009] Therefore, there is a need to develop a braking energy recovery device that is lightweight, has a low rotational inertia, can provide a braking effect, can effectively recover kinetic energy in both high- and low-speed ranges, and is sensitive and fast in response.

[0010] The charge flyback type braking energy recovery device of the present invention includes a power input bearing connected to recover kinetic energy; several rotating disks and fixed plates with planes perpendicular to the axis direction of the power input bearing and stacked staggeredly at a very small distance; the rotating disk is composed of two insulating substrates and several positively charged conductive films and negatively charged conductive films that can be charged with positive and negative charges respectively. The center of the plane of the rotating disk is connected to the power input bearing. At the edge of the connection between the positively charged conductive film and the negatively charged conductive film and the power input bearing at the center of the plane of the rotating disk, a positive charge charging electrode and a negative charge charging electrode are respectively connected to the charging wires on the power input bearing and conducted to the voltage regulator; the fixed plate is composed of two insulating substrates and several first neutral conductive films and second neutral conductive films that are conductively paired by a transformer between adjacent two. The center of the plane of the fixed plate is aligned with the axis of the power input bearing, but is separated from the power input bearing and fixed to the device casing by a fixed seat. The output electrodes on the first neutral conductive film and the second neutral conductive film that are conductively paired by a transformer between adjacent two on the fixed plate are connected to the primary side coil of the transformer through output wires.When the recovered kinetic energy drives the rotating disc to rotate via the power input bearing, the rotating disc and the fixed piece will generate a relative rotational motion on a plane perpendicular to the axis of the power input bearing. The positive-charged conductive film and the negative-charged conductive film on the plane of the rotating disc are pre-charged with positive and negative voltages through a voltage regulator to become conductive films with positive and negative charges. The positive-charged conductive film and the negative-charged conductive film on the plane of the rotating disc will pass above the first neutral conductive film and the second neutral conductive film on the fixed piece that are conductively paired by a transformer with a very small planar distance. Due to electrostatic induction, a positive and negative electric field will be formed on the first neutral conductive film and the second neutral conductive film that are conductively paired by a transformer in the relatively overlapping area on the plane of the fixed piece. According to Coulomb's law, the formed positive and negative electric fields will cause the conductive films in the relatively overlapping area between the plane of the fixed piece and the plane of the rotating disc to attract each other, causing the fixed piece to form a braking effect on the rotating disc. The generated attractive force is proportional to the positive and negative voltages charged on the conductive film on the plane of the rotating disc and inversely proportional to the planar distance between the conductive films in the relatively overlapping area between the plane of the rotating disc and the plane of the fixed piece; when the voltage regulator controls the magnitudes of the positive and negative charges on the positive-charged conductive film and the negative-charged conductive film on the plane of the rotating disc, and adjusts the magnitude of the electric field formed in the overlapping area above the first neutral conductive film and the second neutral conductive film on the plane of the fixed piece that are conductively paired by a transformer, the magnitude of the braking effect can be adjusted; when the power input bearing drives the rotating disc to continue rotating, causing the positive-charged conductive film and the negative-charged conductive film on the plane of the rotating disc to generate a relative displacement in the planar direction with respect to the original positions of the first neutral conductive film and the second neutral conductive film on the plane of the fixed piece that are conductively paired by a transformer, the polarities of the positive and negative electric fields received by the first neutral conductive film and the second neutral conductive film on the fixed piece that are conductively paired by a transformer will be reversed, and the positive and negative charges originally distributed on the surfaces of the first neutral conductive film and the second neutral conductive film that are conductively paired by a transformer will be redistributed and flow between the primary side coils of the transformer; when the power input bearing continuously drives the rotating disc to rotate, causing the polarities of the positive and negative electric fields received by the first neutral conductive film and the second neutral conductive film on the fixed piece that are conductively paired by a transformer to continuously change, resulting in the continuous back-and-forth flow of positive and negative charges between the primary side coils of the transformer, an induced voltage is generated on the secondary side of the transformer and supplied to the load end for energy recovery; by increasing or decreasing the number of stacked rotating discs and fixed pieces, or by controlling the magnitudes of the positive and negative charges on the positive-charged conductive film and the negative-charged conductive film on the plane of the rotating disc through a voltage regulator, the maximum braking effect and the energy recovery power of a single device can be changed.

[0011] The main components inside the present invention are composed of a conductive thin film and an insulating substrate. It not only significantly reduces the weight, reduces the impact on the recovery kinetic energy linkage during idling, but also is applicable to kinetic energy recovery in different high and low rotational speed ranges. The structure of the present invention is concise, and it is easier to adjust the braking effect and the power of the recovered kinetic energy, providing a faster braking control ability. Brief Description of the Drawings:

[0012] Figure 1 Perspective view of the charge flyback type braking energy recovery device according to the present invention;

[0013] Figure 2 Side view of the charge flyback type braking energy recovery device according to the present invention;

[0014] Figure 3 Side sectional view of the charge flyback type braking energy recovery device according to the present invention;

[0015] Figure 4 Top plan view of the fixing piece inside the charge flyback type braking energy recovery device according to the present invention;

[0016] Figure 5 Top sectional view of the charge flyback type braking energy recovery device at the position of the fixing piece inside according to the present invention;

[0017] Figure 6 Top plan view of the rotating disk inside the charge flyback type braking energy recovery device according to the present invention;

[0018] Figure 7 Top sectional view of the charge flyback type braking energy recovery device at the position of the rotating disk inside according to the present invention;

[0019] Figure 8 Perspective view of the connection mode of the power input bearing, the rotating disk and the fixing piece inside the charge flyback type braking energy recovery device according to the present invention;

[0020] Figure 9 Side view of the connection mode of the power input bearing, the rotating disk and the fixing piece inside the charge flyback type braking energy recovery device according to the present invention; and

[0021] Figure 10 Diagram of the relative position change of the rotation of the rotating disk and the fixing piece during the operation of the charge flyback type braking energy recovery device according to the present invention.

[0022] Reference Signs:

[0023] 1 Charge flyback type braking energy recovery device

[0024] 2 Rotating disk

[0025] 4 Fixed piece

[0026] 6 Power input bearing

[0027] 8 Output electrode

[0028] 9 Output wire

[0029] 10 Isolation area

[0030] 11 Positively charged conductive film

[0031] 12 Positive charge charging electrode

[0032] 13 Negatively charged conductive film

[0033] 14 Negative charge charging electrode

[0034] 15 First neutral conductive film

[0035] 16 Second neutral conductive film

[0036] 17 Transformer

[0037] 18 Device housing

[0038] 19 Fixed seat

[0039] 20 Voltage regulator

[0040] 21 Charging wire Specific implementation method:

[0041] In order to be able to more clearly describe a charge flyback type braking energy recovery device proposed by the present invention, the following will, in conjunction with the accompanying drawings, elaborate on the preferred embodiments of the present invention in detail.

[0042] According to the present invention, the optimal charge flyback type braking energy recovery device includes a power input bearing connected to recover kinetic energy to generate a braking effect; several rotating repeating discs and fixed pieces with planes perpendicular to the axis direction of the power input bearing and stacked in an interleaved manner, with a small distance maintained between the planes.

[0043] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 8 and Figure 9, the planes of several rotating disks 2 and several fixed disks 4 are perpendicular to the axis of the power input bearing 6. The planes are stacked in a staggered manner along the axis direction of the power input bearing 6 with a very small distance between them. The center of the plane of the rotating disk 2 is connected to the power input bearing 6; the center of the plane of the fixed disk 4 is aligned with the axis of the power input bearing 6 but separated from the power input bearing 6 and is fixed to the device housing 18 by a fixed seat 19. When the power input bearing 6 drives the rotating disk 2 to rotate around the center of the plane, the plane of the rotating disk 2 will have a very small distance from the plane of the fixed disk 4 and generate a relative rotational motion.

[0044] Please refer to Figure 3 , Figure 6 , Figure 7 , Figure 8 and Figure 9 , each rotating disk 2 is composed of two insulating substrates and several positively charged conductive films 11 and negatively charged conductive films 13 stacked together. The positively charged conductive film 11 and the negatively charged conductive film 13 are separated by an isolation zone 10 and are arranged in a staggered manner according to the set positive and negative polarities of the charges. They are evenly distributed around the center of the plane of the rotating disk 2 in a circle and are pressed between the planes of the two insulating substrates; at the edge of the joint between the rotating disk 2 and the power input bearing 6, the positively charged conductive film 11 and the negatively charged conductive film 13 are provided with a positive charge charging electrode 12 and a negative charge charging electrode 14, which are individually connected to a voltage regulator 20 through charging wires 21 on the power input bearing 6, so that positive and negative charges can be charged into the positively charged conductive film 11 and the negatively charged conductive film 13 and the required voltage magnitude can be adjusted.

[0045] Please refer to Figure 3 , Figure 4 , Figure 5 , Figure 8 and Figure 9 , each fixed disk 4 is composed of two insulating substrates and several first neutral conductive films 15 and second neutral conductive films 16 stacked together. The first neutral conductive film 15 and the second neutral conductive film 16 are separated by an isolation zone 10 and are arranged in a staggered order. They are evenly distributed around the center of the plane of the fixed disk 4 in a circle and are pressed between the planes of the two insulating substrates. The first neutral conductive film 15 and the second neutral conductive film 16 of two adjacent pieces on the fixed disk 4 will be paired respectively, and their output electrodes 8 at the edge will be individually connected to the primary side coil of a transformer 17 through output wires 9 to form adjacent conductive films paired through the transformer. The secondary side coil of the transformer 17 is connected to the load end to recover braking energy.

[0046] Please refer to Figure 3 , Figure 5 , Figure 7 , Figure 9 and Figure 10, when the device enables the braking function and recovers braking energy, the positively charged conductive film 11 and the negatively charged conductive film 13 on the plane of the rotating disk 2 are pre-charged with positive and negative charges by the voltage regulator 20, and the required voltage magnitude is adjusted; when the recovered kinetic energy drives the rotating disk 2 to rotate via the power input bearing 6, a relative rotational movement will occur between the plane of the rotating disk 2 and the plane of the fixed piece 4. The positively charged conductive film 11 and the negatively charged conductive film 13 on the plane of the rotating disk 2 will simultaneously move above the planes of the first neutral conductive film 15 and the second neutral conductive film 16 that are paired and conducted by the transformer 17 in adjacent two pieces; due to electrostatic induction, when the positively charged conductive film 11 overlaps above the plane of the first neutral conductive film 15, a positive electric field will be formed on the first neutral conductive film 15; at the same time, when the negatively charged conductive film 13 overlaps above the plane of the second neutral conductive film 16, a negative electric field will be formed on the second neutral conductive film 16; the positive and negative charges distributed on the surfaces of the first neutral conductive film 15 and the second neutral conductive film 16 will instantaneously displace in the electric field formed by electrostatic induction, causing the negative charges to move to the first neutral conductive film 15 and the positive charges to move to the second neutral conductive film 16; according to Coulomb's law, the positively charged conductive film 11 will mutually generate an attractive force with the negatively charged first neutral conductive film 15; the negatively charged conductive film 13 will mutually generate an attractive force with the positively charged second neutral conductive film 16, and the generated attractive force will be proportional to the voltage magnitude of the positive and negative charges distributed on the surfaces of the positively charged conductive film 11 and the negatively charged conductive film 13, and inversely proportional to the distance between the plane of the fixed piece 4 and the plane of the overlapping area of the conductive films above the rotating disk 2. The generated attractive force will cause the fixed piece 4 to restrain the rotation of the rotating disk 2 to achieve the braking effect; by controlling the voltage magnitude of the positive and negative charges carried by the positively charged conductive film 11 and the negatively charged conductive film 13 with the voltage regulator 20, adjusting the electric field magnitude formed on the first neutral conductive film 15 and the second neutral conductive film 16 that are paired and conducted by the transformer 17 in adjacent two pieces, and changing the attractive force of the fixed piece 4 on the rotating disk 2, the effect of adjusting the braking force magnitude can be achieved.

[0047] Please refer to Figure 3 , Figure 5 , Figure 7 , Figure 9 and Figure 10, when the device enables the braking function and recovers braking energy, the positively charged conductive film 11 and the negatively charged conductive film 13 on the plane of the rotating disc 2 are pre-charged with positive and negative charges by the voltage regulator 20, and the required voltage magnitude is adjusted; when the power input bearing 6 drives the rotating disc 2 to rotate, relative displacement is simultaneously generated between each pair of the positively charged conductive film 11 and the negatively charged conductive film 13 on the plane of the rotating disc 2 and each pair of adjacent two pieces on the fixed piece 4 after being conducted and paired by the transformer 17, namely the first neutral conductive film 15 and the second neutral conductive film 16; the positively charged conductive film 11 will move from the region originally overlapping above the plane of the first neutral conductive film 15, pass through the region above the plane of the isolation zone 10, and then overlap to the region above the plane of the next second neutral conductive film 16; the negatively charged conductive film 13 will move from the region originally overlapping above the plane of the second neutral conductive film 16, pass through the region above the plane of the isolation zone 10, and then overlap to the region above the plane of the next first neutral conductive film 15, so that the electric fields received by the first neutral conductive film 15 and the second neutral conductive film 16 after each pair of adjacent two pieces on the fixed piece 4 are conducted and paired by the transformer 17 will generate reversals of positive and negative polarities; the negative charges originally located on the first neutral conductive film 15 will be redistributed to the second neutral conductive film 16, and the positive charges located on the second neutral conductive film 16 will be redistributed to the first neutral conductive film 15. When the positive and negative charges are redistributed between the first neutral conductive film 15 and the second neutral conductive film 16, drifting charges will be generated. When these drifting charges are conducted to the primary side coil of the transformer 17 through the output wire 9, an induced voltage will be generated in the secondary side coil of the transformer 17.

[0048] Please refer to Figure 3 , Figure 5 , Figure 7 , Figure 9 and Figure 10, when the power input bearing 6 drives the rotating disc 2 to continuously rotate, so that each pair of positively charged conductive films 11 and negatively charged conductive films 13 on the plane of the rotating disc 2 continuously and simultaneously pass above each pair of adjacent two pieces on the fixed piece 4, and the first neutral conductive film 15 and the second neutral conductive film 16 paired by the transformer 17, the electric field polarities received by the first neutral conductive film 15 and the second neutral conductive film 16 paired by the transformer 17 for each pair of adjacent two pieces on the fixed piece 4 continuously and simultaneously change, causing positive and negative charges to move back and forth between the first neutral conductive film 15 and the second neutral conductive film 16 paired by the transformer 17 for each pair of adjacent two pieces on the fixed piece 4, forming continuous drifting charges. When these continuous drifting charges enter the primary side coil of the transformer 17 through the output wire 9, the secondary side coil of the transformer 17 will continuously generate an induced voltage. Connect the secondary side coil of the transformer 17 to the load end to recover braking energy; by increasing or decreasing the number of stacked rotating discs 2 and fixed pieces 4 in the device, or by controlling the voltage magnitudes of the positive and negative charges carried by the positively charged conductive film 11 and the negatively charged conductive film 13 on the plane of the rotating disc 2 through the voltage regulator 20, the maximum braking effect and energy recovery power of a single device can be changed.

[0049] Thus, the above has completely and clearly described a charge-reversal type braking energy recovery device of the present invention. However, it must be emphasized that the detailed description above is for the specific description of the feasible embodiments of the present invention. However, the described embodiments are not intended to limit the scope of the claims of the present invention. Any equivalent implementation or change made without departing from the technical spirit of the present invention should be included in the scope of the claims of this case.

Claims

1. A charge flyback type braking energy recovery device, characterized in that, it comprises: a power input bearing connected to the recovered kinetic energy; several rotating discs and fixed plates with planes perpendicular to the axis direction of the power input bearing and stacked in a staggered manner at a very small distance; each rotating disc is composed of two insulating substrates and several positively charged conductive films and negatively charged conductive films that can be charged with positive and negative charges respectively. The positively charged conductive film and the negatively charged conductive film are separated by an isolation area, arranged in a staggered manner according to the set polarity, evenly distributed around the center of the rotating disc plane in a circle, and pressed between the planes of the two insulating substrates; the center of the rotating disc plane is connected to the power input bearing. At the edge of the combination of the rotating disc and the power input bearing, the positively charged conductive film and the negatively charged conductive film are provided with a positive charge charging electrode and a negative charge charging electrode. The positive charge charging electrode and the negative charge charging electrode are individually connected to a voltage regulator through the charging wires on the power input bearing, so that positive and negative charges can be charged into the positively charged conductive film and the negatively charged conductive film and the required voltage magnitude can be adjusted; each fixed plate is composed of two insulating substrates and several pairs of first neutral conductive films and second neutral conductive films that are conductively paired by a transformer after being adjacent to each other. The center of the fixed plate plane is aligned with the axis of the power input bearing, but separated from the power input bearing and fixed to the device housing with a fixed seat. The first neutral conductive film and the second neutral conductive film are separated by an isolation area, arranged in a staggered order, evenly distributed around the center of the fixed plate plane in a circle, and pressed between the planes of the two insulating substrates. The first neutral conductive film and the second neutral conductive film of two adjacent pieces on the fixed plate will be paired respectively, and the output electrodes located at their edges are individually connected to the primary side coil of the transformer through the output wires to form the first neutral conductive film and the second neutral conductive film that are conductively paired by a transformer after being adjacent to each other. The secondary side coil of the transformer is connected to the load end to recover braking energy; characterized in that when the recovered kinetic energy drives the rotating disc to rotate through the power input bearing, the rotating disc and the fixed plate will generate a relative rotational movement on the plane perpendicular to the axis. The voltage regulator is used to charge positive and negative charges into the positively charged conductive film and the negatively charged conductive film on the rotating disc plane and adjust the required voltage magnitude in advance, so that the positively charged conductive film and the negatively charged conductive film on the rotating disc plane pass above the first neutral conductive film and the second neutral conductive film that are conductively paired by a transformer after being adjacent to each other on the fixed plate at a very small plane distance. Due to electrostatic induction, the positively charged conductive film and the negatively charged conductive film on the rotating disc plane will form positive and negative electric fields on the first neutral conductive film and the second neutral conductive film that are conductively paired by a transformer after being adjacent to each other in the relatively overlapping area on the fixed plate plane. According to Coulomb's law, the formed positive and negative electric fields will cause the conductive films in the relatively overlapping area between the fixed plate plane and the rotating disc plane to generate an attractive force to each other, so that the fixed plate generates a braking effect on the rotating disc; When controlling the voltage magnitudes of the positive and negative charges carried by the positively charged conductive film and the negatively charged conductive film on the plane of the rotating disk through a voltage regulator, and adjusting the magnitude of the electric field formed in the relatively overlapping area above the planes of the first neutral conductive film and the second neutral conductive film after being conductively paired by a transformer for two adjacent sheets on the plane of the fixed sheet, the magnitude of the braking effect generated by the fixed sheet on the rotating disk can be adjusted; When the power input bearing drives the rotating disk to continue rotating, so that each pair of the positively charged conductive film and the negatively charged conductive film on the plane of the rotating disk passes above the planes of the first neutral conductive film and the second neutral conductive film after being conductively paired by a transformer for two adjacent sheets on the fixed sheet at a very small planar distance and continuously interleaves, the electric field polarity in the relatively overlapping area between the first neutral conductive film and the second neutral conductive film after being conductively paired by a transformer for two adjacent sheets on the fixed sheet and the positively charged conductive film and the negatively charged conductive film on the plane of the rotating disk continuously changes, causing the positive and negative charges to move back and forth between the first neutral conductive film and the second neutral conductive film after being conductively paired by a transformer for two adjacent sheets on the fixed sheet to form continuous drifting charges, and flowing between the primary side coils of the transformer, and the induced voltage generated by the secondary side of the transformer is provided to the load end to be converted into energy recovery; By increasing or decreasing the number of stacked rotating disks and fixed sheets in the device, or by controlling the voltage magnitudes of the positive and negative charges carried by the positively charged conductive film and the negatively charged conductive film on the plane of the rotating disk through a voltage regulator, the maximum braking effect and the maximum energy recovery power of a single device can be changed.

Images