CN113872466A - Electric energy recovery device for suspension system - Google Patents
Electric energy recovery device for suspension system Download PDFInfo
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- CN113872466A CN113872466A CN202111227870.9A CN202111227870A CN113872466A CN 113872466 A CN113872466 A CN 113872466A CN 202111227870 A CN202111227870 A CN 202111227870A CN 113872466 A CN113872466 A CN 113872466A
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- Prior art keywords
- suspension system
- piezoelectric element
- piezoelectric
- energy recovery
- recovery device
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- 239000000725 suspension Substances 0.000 title claims abstract description 67
- 238000011084 recovery Methods 0.000 title claims abstract description 35
- 230000008929 regeneration Effects 0.000 claims abstract description 23
- 238000011069 regeneration method Methods 0.000 claims abstract description 23
- 230000000694 effects Effects 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 22
- 239000007787 solid Substances 0.000 claims description 20
- 230000003137 locomotive effect Effects 0.000 claims description 5
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 claims description 4
- BITYAPCSNKJESK-UHFFFAOYSA-N potassiosodium Chemical compound [Na].[K] BITYAPCSNKJESK-UHFFFAOYSA-N 0.000 claims description 3
- PDGYMUBNWUUWEI-UHFFFAOYSA-N strontium zirconium Chemical compound [Sr].[Zr] PDGYMUBNWUUWEI-UHFFFAOYSA-N 0.000 claims description 3
- 230000035939 shock Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 12
- 239000006096 absorbing agent Substances 0.000 description 9
- 238000004064 recycling Methods 0.000 description 7
- 238000013016 damping Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000036316 preload Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/186—Vibration harvesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
- B60G13/14—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers accumulating utilisable energy, e.g. compressing air
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
- Vehicle Body Suspensions (AREA)
- Vibration Prevention Devices (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The invention provides an electric energy recovery device for a suspension system, which comprises an energy regeneration unit and an electric power unit. The energy regeneration unit comprises a suspension system and a plurality of piezoelectric elements, wherein the plurality of piezoelectric elements are arranged in the suspension system, the piezoelectric constant d33 of the plurality of piezoelectric elements is between 10 and 1000pC/N, and mechanical energy is converted into electric energy through positive piezoelectric effect. In addition, the power unit comprises a power converter and a power storage device, wherein the power unit is electrically connected with the energy regeneration unit, and the power converter transmits the electric energy generated by the energy regeneration unit to the power storage device.
Description
Technical Field
The present invention relates to an electric energy recycling device, and more particularly, to an electric energy recycling device for a suspension system.
Background
In response to global warming crisis and energy transformation of all countries around the world, although the traditional gasoline and diesel vehicles are the highest in market at present due to low cost, more and more consumers are going to buy Hybrid vehicles (Hybrid) or pure electric vehicles due to high carbon emission, wherein the electric vehicles are rapidly growing in the market in recent years. In order to improve the energy utilization efficiency, various energy recovery devices have been developed by various major manufacturers, for example, when an oil-electric hybrid vehicle is braking and going downhill, the energy can be converted into electric energy and recovered and stored in a battery. In addition, the pure electric vehicle depends on the lithium polymer battery to increase the vehicle endurance.
For example, a commercially available hybrid vehicle performs cruise kinetic energy recovery when the throttle is released and brake kinetic energy recovery when the brake pedal is depressed, and its electric motor performs a maximum deceleration of about 0.3g while recovering kinetic energy sufficient to handle most deceleration demands during daily travel, recovering up to 265kW of power. Another commercially available hybrid vehicle can recover kinetic energy during traveling, and its electric motor completely replaces damping function, and the electric power recovery on a general road is 100-150W; the electric power recovery on the rough road surface is 613W; the power recovery on the highway is 3W. In addition, there are also tire manufacturers that add heat sensitive materials to the tread, so that tire deformation during travel can also be converted to electrical recharging, i.e., kinetic energy recovery can be performed during travel.
In summary, how to provide an energy recycling device to increase the endurance of the vehicle is an important issue to be considered in the industry.
Disclosure of Invention
The present invention provides an electric energy recycling device for suspension system, which can effectively increase the endurance of vehicle.
In view of the foregoing, an aspect of the present disclosure provides an electric energy recovery apparatus for a suspension system, including an energy regeneration unit and an electric power unit. The energy regeneration unit comprises a suspension system and a plurality of piezoelectric elements in the suspension system, wherein the plurality of piezoelectric elements are arranged in the suspension system, the piezoelectric constant d33 of the plurality of piezoelectric elements is between 10 and 1000pC/N, and mechanical energy is converted into electric energy through the positive piezoelectric effect. In addition, the power unit comprises a power converter, a battery management system and a power storage device, wherein the power unit is electrically connected with the energy regeneration unit, and the power converter transmits the electric energy generated by the energy regeneration unit to the power storage device.
According to one or more embodiments of the present disclosure, the piezoelectric element includes a high dielectric constant piezoelectric material.
According to one or more embodiments of the present disclosure, the high-k piezoelectric material is lead zirconium titanate (PZT), strontium zirconium tantalate (BZT), potassium sodium niobate (KNN), or other piezoelectric materials.
According to one or more embodiments of the present disclosure, the suspension system is a locomotive suspension system.
According to one or more embodiments of the present disclosure, the motorcycle suspension system includes a solid piezoelectric element, a hollow cylindrical piezoelectric element, a shock-absorbing module and a U-shaped lower fixing base, the shock-absorbing module contacts the solid piezoelectric element, the hollow cylindrical piezoelectric element and the U-shaped lower fixing base, respectively, and the U-shaped lower fixing base is fixed on a rim.
According to one or more embodiments of the present disclosure, the motorcycle suspension system further includes an annular upper mounting base, wherein the solid piezoelectric element is in contact with the annular upper mounting base, and the annular upper mounting base is mounted on a vehicle body.
According to one or more embodiments of the present disclosure, the suspension system is an automotive suspension system.
According to one or more embodiments of the present disclosure, the suspension system includes a solid piezoelectric element, a hollow cylindrical piezoelectric element, a shock-absorbing module and a lower annular fixing seat, the shock-absorbing module contacts the solid piezoelectric element, the hollow cylindrical piezoelectric element and the lower annular fixing seat respectively, and the lower annular fixing seat is fixed on a rim.
According to one or more embodiments of the present disclosure, the vehicle suspension system further includes a plate-shaped upper fixing base, wherein the solid piezoelectric element is in contact with the plate-shaped upper fixing base, and the plate-shaped upper fixing base is fixed to a vehicle body.
According to one or more embodiments of the present disclosure, the solid piezoelectric element or the hollow cylindrical piezoelectric element is adjusted in thickness according to a predetermined value of the electric energy.
Drawings
In order to make the aforementioned and other objects, features, advantages and embodiments of the invention more comprehensible, the following description is given:
fig. 1 is a schematic diagram illustrating a piezoelectric element for an electric energy recovery device according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of a solid piezoelectric element for use in an electrical energy recovery device according to an embodiment of the present invention.
Fig. 3 is a schematic diagram showing a hollow cylindrical piezoelectric element for an electric energy recovery device according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of an energy regeneration unit of the electric energy recovery device for the suspension system according to the embodiment of the present invention.
Fig. 5 is a schematic diagram of an energy regeneration unit of the electric energy recovery device for the suspension system according to the embodiment of the present invention.
Fig. 6 is a schematic view showing an electric energy recovery apparatus for a suspension system according to an embodiment of the present invention.
Fig. 7 is a schematic view showing a state of use of the electric energy recovery apparatus for a suspension system according to the embodiment of the present invention.
In accordance with conventional practice, the various features and elements of the drawings are not necessarily to scale, emphasis instead being placed upon illustrating the particular features and elements of the invention in order to best explain the principles of the invention. Moreover, the same or similar reference numbers will be used throughout the drawings to refer to similar components and parts.
10: piezoelectric component
60 b: adjusting nut
10 a: electrode plate
60 c: shock-absorbing module
10 b: electrode plate
60 d: spring tray
10 c: piezoelectric material
60 e: supporting seat
20: conducting wire
60 f: lower fixing seat
30: battery with a battery cell
70: suspension system
40. 40', 40 ": piezoelectric component
70 a: upper fixing seat
50. 50', 50 ": piezoelectric component
70 b: spring
60: suspension system
70 c: adjusting nut
60 a: upper fixing seat
70 d: shock-absorbing module
70e, and (c): lower fixing seat
80: power converter
90: battery management system
100: power supply storage device
600: electric energy recovery device
610: energy regeneration unit
620: power unit
700: suspension system
710: wheel of vehicle
I. II, III: region(s)
F: external force
Detailed Description
For the purpose of further understanding and appreciation of the objects, shapes, structural features, and functions of the invention, reference will now be made in detail to the illustrated embodiments of the invention, taken in conjunction with the accompanying drawings.
The following disclosure provides various embodiments, or examples, for implementing various features of the provided subject matter. Specific examples of components and arrangements are described below to simplify the present disclosure and are not intended to be limiting; the size and shape of the elements are also not limited by the disclosed ranges or values, but may depend on the processing conditions of the elements or the desired characteristics. For example, the technical features of the present invention are described using cross-sectional views, which are schematic illustrations of idealized embodiments. Thus, variations in the shapes of the illustrations as a result of manufacturing processes and/or tolerances are to be expected and should not be construed as limiting.
Furthermore, spatially relative terms, such as "below," "below …," "below," "…" and "above," are used for ease of describing the relationship between elements or features depicted in the drawings; spatially relative terms may encompass different orientations of the component in use or operation in addition to the orientation depicted in the figures.
Hereinafter, an electric energy recycling apparatus for a suspension system according to an embodiment of the present invention will be described with reference to the drawings.
Referring to fig. 1, fig. 1 is a schematic diagram illustrating a piezoelectric element for an electric energy recovery device. As shown in fig. 1, the piezoelectric assembly 10 is composed of an electrode plate 10a, an electrode plate 10b, and a piezoelectric material 10c, wherein the piezoelectric material 10c is sandwiched between the electrode plate 10a and the electrode plate 10 b. When the electrode plate 10a and the electrode plate 10b are subjected to the external force F, the electrode plate 10a and the electrode plate 10b may extrude the piezoelectric material 10c inside, so that the piezoelectric material 10c is deformed, and then the mechanical energy is converted into electric energy due to the positive piezoelectric effect, thereby achieving the power generation effect. The generated electric energy is transmitted to the battery 30 via the lead 20 for storage.
Next, referring to fig. 2 and fig. 3 together, fig. 2 is a schematic diagram illustrating a solid piezoelectric element for an electric energy recovery device according to an embodiment of the present invention; FIG. 3 is a schematic diagram of a hollow cylindrical piezoelectric element for an electric energy recovery device according to an embodiment of the present invention. As shown in fig. 2 and 3, the piezoelectric element 40 and the piezoelectric element 50 are each configured such that a piezoelectric material is interposed between upper and lower electrode plates, as in the piezoelectric element 10. The difference is that piezoelectric element 40 is a solid piezoelectric element and piezoelectric element 50 is a hollow cylindrical piezoelectric element. In the embodiment of the present invention, since the piezoelectric element 50 is a hollow cylindrical piezoelectric element, it can be selected with the diameter of the axis of the damping system. In the embodiment of the present invention, the piezoelectric elements 40 and 50 are both made of a high dielectric constant piezoelectric material, such as lead zirconium titanate (PZT), strontium zirconium tantalate (BZT), potassium sodium niobate (KNN), or other piezoelectric materials, and the other piezoelectric materials include combinations of the above materials or other composite materials, but the present invention is not limited thereto.
Next, referring to fig. 4 and fig. 6 together, fig. 4 is a schematic diagram illustrating an energy regeneration unit of the electric energy recovery device for the suspension system according to the embodiment of the present invention. FIG. 6 is a schematic diagram of an electric energy recovery device for a suspension system according to an embodiment of the present invention. As shown in fig. 4 and 6, the suspension 60 is a motorcycle suspension, and forms the energy regeneration unit 610 together with the piezoelectric elements 40 ', 50'. In the embodiment of the present invention, the design of the existing shock absorber is not changed in principle, but is applied to the motorcycle by means of an additional module. For example, the piezoelectric elements 40 ', 50' are disposed in the suspension system 60, and the piezoelectric elements 40 ', 50' are made of a piezoelectric material with a piezoelectric constant d33 between 10-1000 pC/N, so as to convert the mechanical energy into electrical energy by positive piezoelectric effect. In addition, in the embodiment of the present invention, the suspension system 60 further includes an upper fixing base 60a, an adjusting nut 60b, a shock absorbing module 60c, a spring tray 60d, a supporting base 60e and a lower fixing base 60 f.
In the embodiment of the present invention, the upper fixing base 60a is an annular upper fixing base and is fixed on a vehicle body. In other embodiments of the present invention, the upper fixing base 60a may have other shapes as long as the fixing effect can be achieved. In other embodiments of the present invention, the lower fixing base 60f may have other shapes as long as the fixing effect can be achieved.
As shown in FIG. 4, the piezoelectric elements 40 ', 50' are in contact with the suspension module 60c, respectively. The adjustment nut 60b is in contact with the piezoelectric element 40' and the upper fixing seat 60a, respectively. In addition, the spring tray 60d contacts the piezoelectric element 50' and the support base 60e, and the support base 60e contacts the lower fixing base 60 f. In one embodiment of the present invention, piezoelectric element 40 'is a solid piezoelectric element and piezoelectric element 50' is a hollow cylindrical piezoelectric element.
In one embodiment of the present invention, the adjusting nut 60b is used to control the weight of the preload, which is adjusted to optimize the adaptive feel of the vehicle in combination with the weight of the vehicle and the weight of the vehicle.
In the embodiment of the present invention, like a general motorcycle shock absorber, the shock absorbing module 60c includes a damping system, a rebound throttle plate set, a compression throttle plate set, a piston, an oil seal seat, a bottom buffer, a control shaft, a spring, a shock absorbing pad, etc., which are not further described herein.
In an embodiment of the present invention, the spring tray 60d is used to hold the spring. In addition, the lower fixing base 60f is fixed on the rim. In the embodiment of the present invention, the lower fixing base 60f is a U-shaped lower fixing base and is fixed on a rim.
Referring to fig. 5 and fig. 6 together, fig. 5 is a schematic diagram illustrating an energy regeneration unit of the electric energy recovery device for a suspension system according to an embodiment of the present invention. As shown in fig. 5 and 6, the suspension 70 and the piezoelectric elements 40 ", 50" form an energy regeneration unit 610. In the embodiment of the present invention, the design of the existing shock absorber is not changed, but is applied to the automobile by means of an additional module. For example, the piezoelectric elements 40 ', 50' are disposed in the suspension system 70, and the piezoelectric elements 40 ', 50' are also made of piezoelectric material with a piezoelectric constant d33 between 10-1000 pC/N, and convert the mechanical energy into electrical energy by positive piezoelectric effect. In addition, in the embodiment of the present invention, the suspension system 70 is a vehicle suspension system, and further includes an upper fixing seat 70a, a spring 70b, an adjusting nut 70c, a shock absorbing module 70d and a lower fixing seat 70 e. In the present embodiment, the piezoelectric element 40 "is a solid piezoelectric element, and the piezoelectric element 50" is a hollow cylindrical piezoelectric element.
In the embodiment of the present invention, the upper fixing base 70a is a plate-shaped upper fixing base and is fixed on a vehicle body. In other embodiments of the present invention, the upper fixing seat 70a may have other shapes as long as the fixing effect can be achieved. In addition, a spring tray may be disposed below the upper fixing seat 70a for fixing the spring.
In the embodiment of the present invention, the spring 70b is still disposed and includes a dust cover, a shock absorbing pad, and other common components of a shock absorber, which are not further described herein.
In one embodiment of the present invention, the adjusting nut 70c is used to control the weight of the preload to optimize the adaptive feel of the vehicle in combination with the weight and the self-weight of the vehicle.
In the embodiment of the present invention, like a general vehicle shock absorber, the shock absorbing module 70d includes a damping system, a rebound throttle plate set, a compression throttle plate set, a piston, an oil seal seat, a bottom buffer, a control shaft, and the like, which are not further described herein. As shown in FIG. 5, the suspension module 70d contacts the piezoelectric elements 40 ", 50" and the lower fixing base 70e, respectively, and the piezoelectric element 40 "contacts the upper fixing base 70 a. In addition, the piezoelectric element 50 ″ contacts the adjustment nut 70c, and the adjustment nut 70c contacts the lower fixture 70 e.
In the embodiment of the present invention, the lower fixing base 70e is an annular lower fixing base and is fixed on a rim. In other embodiments of the present invention, the lower fixing base 70e may have other shapes as long as the fixing effect can be achieved.
Next, as shown in fig. 6, in an embodiment of the invention, the electric energy recycling device 600 is suitable for a locomotive, and includes an energy regeneration unit 610 and an electric power unit 620. In an embodiment of the present invention, the regeneration unit 610 includes a suspension system 60 and piezoelectric elements 40 ', 50', wherein the piezoelectric elements 40 ', 50' are disposed in the suspension system 60, and the piezoelectric constant d33 of the piezoelectric elements 40 ', 50' is between 10-1000 pC/N, so as to convert the mechanical energy into electrical energy by positive piezoelectric effect. In addition, the power unit 620 includes a power converter 80, a battery management system 90 and a power storage device 100, wherein the power unit 620 is electrically connected to the energy regeneration unit 610, and the power converter 80 transmits the electric energy generated by the energy regeneration unit 610 to the power storage device 100 through the battery management system 90. In other embodiments of the present invention, the battery management system 90 may also be an energy management system.
In addition, as shown in fig. 6, in another embodiment of the present invention, the electric energy recovery apparatus 600 is suitable for use in a vehicle, and includes a regeneration unit 610 including a suspension system 70 and piezoelectric elements 40 ", 50", and the rest of the components are the same as those in the foregoing embodiment suitable for use in a locomotive, and will not be described again.
Referring to fig. 7, fig. 7 is a schematic diagram illustrating a usage status of the electric energy recycling device for suspension system according to the embodiment of the present invention. As shown in the top of FIG. 7, when the vehicle travels across a road surface in the direction of the arrow, the road surface in region I has a convex surface, and the road surfaces in regions II and III have smooth surfaces. When the vehicle travels across the road surface in zone I, the suspension 700 on the wheels 710 will generate a compressive force on the springs that then compress the piezoelectric elements, and then travel across the smooth surface in zones II, III, the springs of the suspension 700 will return to their original state, i.e., the springs compress the piezoelectric elements to a lesser degree. That is, as shown in the lower part of FIG. 7, the waveforms of the areas I, II, and III are compared to the situation that the shock absorber with the add-on module is charged after being squeezed when it travels through the protruded road surface. Therefore, when the vehicle continuously runs on a steep road surface, the electric dipole moment in the piezoelectric assembly is shortened due to compression, and equal positive and negative charges are generated on the surface, so that the surface charge quantity is relatively increased when the vehicle is stressed more. In addition, the larger the piezoelectric constant d33 of the material is, the higher the energy conversion efficiency is.
In one embodiment of the present invention, to increase the power generated by the device, the materials of the piezoelectric elements can be stacked in series and parallel to a desired thickness. That is, in the embodiment of the present invention, the solid piezoelectric element 40, 40 ', 40 ″ or the hollow cylindrical piezoelectric element 50, 50', 50 ″ is adjusted in thickness according to a predetermined value of the desired electric power.
In the embodiment of the present invention, lead zirconate titanate (PZT) is used as an example, the thickness of the material is 1 cm, the amount of electricity generated at one time under the action of an external force 50N is about 2648J (2.65 KW), and the PZT is recharged to the battery during the traveling. In addition, the feedback amount will vary according to the oscillation frequency of the road and the external force. In the embodiment of the present invention, the drawings of the shock absorber or the suspension system are only partial embodiments, and because the existing shock absorbers are various, the electric energy recovery apparatus of other embodiments of the present invention can be configured on different shock absorbers or suspension systems according to different module designs.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.
Claims (10)
1. An electrical energy recovery device for a suspension system, comprising:
an energy regeneration unit, comprising a suspension system and a plurality of piezoelectric elements in the suspension system, wherein the plurality of piezoelectric elements are arranged in the suspension system, the piezoelectric constant d33 of the plurality of piezoelectric elements is between 10 to 1000pC/N, and mechanical energy is converted into electric energy through a positive piezoelectric effect; and
and the power unit comprises a power converter, a battery management system and a power storage device, wherein the power unit is electrically contacted with the energy regeneration unit, and the power converter transmits the electric energy generated by the energy regeneration unit to the power storage device.
2. An electrical energy recovery device for a suspension system according to claim 1 wherein the piezoelectric element comprises a high dielectric constant piezoelectric material.
3. The electrical energy recovery device for a suspension system of claim 2 wherein the high dielectric constant piezoelectric material is lead zirconium titanate, strontium zirconium tantalate, potassium sodium niobate or other piezoelectric material.
4. The electrical energy recovery device for a suspension system of claim 1 wherein the suspension system is a locomotive suspension system.
5. The apparatus according to claim 4, wherein the suspension system comprises a solid piezoelectric element, a hollow cylindrical piezoelectric element, a shock-absorbing module and a U-shaped lower fixing base, the shock-absorbing module contacts the solid piezoelectric element, the hollow cylindrical piezoelectric element and the U-shaped lower fixing base, respectively, and the U-shaped lower fixing base is fixed on a rim.
6. The electrical energy recovery device for a suspension of claim 5 wherein said locomotive suspension further comprises an annular upper mounting seat, wherein said solid piezoelectric element is in contact with said annular upper mounting seat and said annular upper mounting seat is secured to a body.
7. The electrical energy recovery device for a suspension system of claim 1 wherein the suspension system is a vehicle suspension system.
8. The apparatus according to claim 7, wherein the suspension system comprises a solid piezoelectric element, a hollow cylindrical piezoelectric element, a shock-absorbing module and a lower annular fixing base, the shock-absorbing module contacts the solid piezoelectric element, the hollow cylindrical piezoelectric element and the lower annular fixing base, and the lower annular fixing base is fixed on a rim.
9. The electrical energy recovery apparatus for a suspension of claim 8 wherein said vehicle suspension further comprises a plate-like upper mounting seat, wherein said solid piezoelectric element is in contact with said plate-like upper mounting seat and said plate-like upper mounting seat is fixed to a vehicle body.
10. The electric energy recovery device for a suspension system according to claim 1, wherein the solid piezoelectric element or the hollow cylindrical piezoelectric element is adjusted in thickness according to a predetermined value of electric energy.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111227870.9A CN113872466A (en) | 2021-10-21 | 2021-10-21 | Electric energy recovery device for suspension system |
| TW110139392A TWI807459B (en) | 2021-10-21 | 2021-10-22 | Electric energy recovery device for a suspension system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111227870.9A CN113872466A (en) | 2021-10-21 | 2021-10-21 | Electric energy recovery device for suspension system |
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| CN113872466A true CN113872466A (en) | 2021-12-31 |
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| CN202111227870.9A Pending CN113872466A (en) | 2021-10-21 | 2021-10-21 | Electric energy recovery device for suspension system |
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| TW (1) | TWI807459B (en) |
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