A frequency increasing generator

Abstract

The invention discloses a frequency-increasing generator, comprising a direct-acting guide rod, a tubular rotating member, and a generator system, wherein the tubular rotating member is sleeved on the direct-acting guide rod, and the outer walls of the direct-acting guide rod and the tubular rotating member are respectively provided with a plurality of permanent magnets 1 and 2 arranged in a spiral shape; a plurality of permanent magnets 3 arranged in a ring shape are fixedly provided on the outer side of the tubular rotating member, and the magnetic flux directions of two adjacent permanent magnets 3 are opposite; the generator system is provided with a plurality of permanent magnets 3 arranged in a ring shape and evenly distributed on the outer side of the ring-shaped permanent magnets 3, and the generator system comprises a frame and a permanent magnet 4 slidably installed in the frame, and a coil is provided on the frame. The frequency-increasing generator of the invention has an ingenious design and a compact structure, and adopts a two-stage frequency-increasing structure to amplify and increase the frequency of ultra-low frequency environmental vibration, thereby realizing low-frequency energy collection and improvement of power generation efficiency in an ultra-low frequency state, and can be applied to highly corrosive environments such as the ocean, with obvious frequency-increasing effect, high power generation efficiency and good stability.

Description

Technical Field

[0001] The invention relates to the technical field of generators, in particular to a frequency-increasing generator. Background Art

[0002] Most mechanical energy in nature exists in the form of low frequency, such as wave and tidal energy, which has huge potential. How to collect and utilize such low-frequency energy will be a research direction with broad prospects.

[0003] At present, there are two main types of motion conversion for low-frequency energy harvesting. The first type directly connects the energy collector to the environmental excitation, and its motion frequency is the environmental frequency. However, the environmental excitation is usually of low frequency, and the directly transmitted motion frequency is consistent with the environmental excitation, so its power generation efficiency is low. In order to increase the power generation, the structure volume is usually increased, which will cause the entire system structure to be bloated and cannot be promoted and used on a large scale.

[0004] The second method is to perform linear-rotation conversion and then collect energy, such as a mechanical / magnetic transmission screw nut device. This solution achieves energy collection by converting environmental excitation into rotational motion at a fixed ratio (usually amplified) and then connecting it to a generator. This solution has higher efficiency than the first one, but its mechanical linear-rotation conversion mechanism is easily damaged under impact loads, which can easily cause structural damage to the entire power generation system, and it itself is not suitable for highly corrosive environments such as the ocean. The magnetic transmission linear-rotation conversion mechanism can adapt well to impact loads, and can be used in marine environments compared to mechanical ones, but its own transmission effect depends on the influence of lift. For large power generation equipment, the lift is usually large, so the frequency improvement effect is relatively unobvious. Summary of the invention

[0005] The purpose of the present invention is to provide a frequency-increasing generator to solve the above defects.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A frequency-increasing generator comprises a direct-acting guide rod, a tubular rotating member and a generator system, wherein the tubular rotating member is sleeved on the direct-acting guide rod, and the outer walls of the direct-acting guide rod and the tubular rotating member are respectively provided with a plurality of permanent magnets 1 and 2 arranged in a spiral shape; a plurality of permanent magnets 3 arranged in a ring shape are fixedly provided on the outer side of the tubular rotating member, and the magnetic flux directions of two adjacent permanent magnets 3 are opposite; the generator system is provided with a plurality of permanent magnets 3 uniformly distributed in a ring shape on the outer side of the ring-shaped permanent magnets 3, and the generator system comprises a frame and a permanent magnet 4 slidably installed in the frame, and a coil is provided on the frame.

[0008] Preferably, it also includes a shell, which includes an equipment base and a lower fixed sleeve installed on the equipment base, an upper fixed sleeve is arranged above the lower fixed sleeve, linear bearings are arranged on the outer walls of both ends of the direct-acting guide rod, and are respectively installed in the axial hole arranged at the axis center of the equipment base and the axis center of the upper fixed sleeve, and the tubular rotating member is placed between the two linear bearings.

[0009] Preferably, it also includes a tubular bracket, both ends of the tubular rotating member are connected and fixed to the inner wall of the shell through a rotating bearing, the tubular bracket is sleeved on the tubular rotating member, and both ends of the tubular bracket are fixed to the outer walls of the two ends of the tubular rotating member, and a plurality of permanent magnets arranged in a ring are evenly distributed on the outer wall of the tubular bracket.

[0010] Preferably, a plurality of power generation installation grooves are embedded in the connection between the lower fixing sleeve and the upper fixing sleeve, and a plurality of the generator systems are respectively installed in the plurality of power generation installation grooves in a one-to-one correspondence.

[0011] Preferably, a plurality of permanent magnet mounting holes 1 and permanent magnet mounting holes 2 are respectively provided on the outer walls of the direct-acting guide rod and the tubular rotating part, and the plurality of permanent magnet mounting holes 1 and permanent magnet mounting holes 2 are arranged at equal distances in a spiral ascending state, and a plurality of permanent magnets 1 and permanent magnets 2 are respectively embedded in the plurality of permanent magnet mounting holes 1 and permanent magnet mounting holes 2 in a one-to-one correspondence.

[0012] Preferably, a lower sleeve tubular fixing seat and an upper sleeve tubular fixing seat are respectively provided on the outer sides of the two linear bearings, and annular seals are provided on the outer wall of the lower end of the lower sleeve tubular fixing seat and the outer wall of the upper end of the upper sleeve tubular fixing seat; one of the rotary bearings is installed between the inner wall of the upper end of the lower sleeve tubular fixing seat and the outer wall of the lower end of the tubular rotating member, and the annular seal on the outer wall of the lower end of the lower sleeve tubular fixing seat is fixed to the inner wall of the lower end of the lower fixed sleeve; the other rotary bearing is installed between the inner wall of the lower end of the upper sleeve tubular fixing seat and the outer wall of the upper end of the tubular rotating member, and the annular seal on the outer wall of the upper end of the upper sleeve tubular fixing seat is fixed to the inner wall of the upper end of the lower fixed sleeve.

[0013] Preferably, an annular permanent magnet installation groove is arranged inside a plurality of the power generation installation grooves, and a plurality of the annular permanent magnets are placed in the annular permanent magnet installation groove.

[0014] Preferably, two parallel slide rails are arranged in a plurality of the racks, and both ends of the permanent magnet four are installed in the slide rails; the sliding movement direction of the permanent magnet four in the slide rails points to or away from the axis line of the direct-acting guide rod.

[0015] Preferably, assuming that the environmental excitation is: y=Pcos(ω0t), where P is the amplitude and ω0 is the frequency of the environmental excitation; then the final amplification factor after frequency up-amplification is:

[0016]

[0017] Among them, A is the final amplification factor of the frequency-increasing amplification, n is the number of permanent magnets three, and λ is the spiral lift of permanent magnets two;

[0018] Then the speed of the permanent magnet four in the generator system cutting the magnetic flux lines is:

[0019]

[0020] Among them, v2 is the cutting magnetic flux line speed, and L is the single cutting magnetic flux line distance.

[0021] The beneficial effects of the present invention are:

[0022] The invention discloses a frequency-increasing generator, which adopts a two-stage frequency-increasing structure to amplify and increase the frequency of ultra-low frequency environmental vibration, thereby realizing low-frequency energy collection and improvement of power generation efficiency in an ultra-low frequency state; different frequency-increasing multiples can be realized by reasonably adjusting the number of three-stage permanent magnets (i.e., permanent magnet three 81); the transmission of the two-stage frequency-increasing structure adopts a non-contact type, which can effectively avoid structural damage caused by impact, has good impact load adaptability, and increases the service life of the system. The invention discloses a frequency-increasing generator, which has a clever design and a compact structure, can be applied to highly corrosive environments such as the ocean, has an obvious frequency-increasing effect, high power generation efficiency, and good stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 : A schematic cross-sectional view of the overall structure of the present invention;

[0024] Figure 2 : Schematic diagram of the overall structure of the present invention;

[0025] Figure 3 : A schematic structural diagram of a tubular rotating member of the present invention;

[0026] Figure 4 : Schematic diagram of the frequency increasing principle of the present invention. DETAILED DESCRIPTION

[0027] Combined with Figure 1-4 , the specific implementation mode of the present invention is described as follows:

[0028] like Figure 1-4As shown, a frequency-increasing generator includes a housing, a direct-acting guide rod 3, a tubular rotating member 7, a tubular bracket 8, and a generator system 9. The housing includes an equipment base 1 and a lower fixed sleeve 2 installed on the equipment base 1, an upper fixed sleeve 4 is arranged above the lower fixed sleeve 2, and linear bearings 6 are arranged on the outer walls of both ends of the direct-acting guide rod 3, and are respectively installed at the axial center hole set at the axial center of the equipment base 1 and the axial center of the upper fixed sleeve 4.

[0029] The tubular rotating member 7 is sleeved on the direct-acting guide rod 3 between two linear bearings 6. The direct-acting guide rod 3 and the outer wall of the tubular rotating member 7 are respectively provided with a plurality of permanent magnets 1 31 (i.e., primary permanent magnets) and permanent magnets 2 71 (i.e., secondary permanent magnets) arranged in a spiral shape.

[0030] Among them, a number of permanent magnet mounting holes 1 and permanent magnet mounting holes 2 70 are respectively arranged on the outer walls of the direct-acting guide rod 3 and the tubular rotating part 7. The number of permanent magnet mounting holes 1 and permanent magnet mounting holes 2 70 are arranged in a spiral ascending state at equal distances, and a number of permanent magnets 1 31 (i.e., primary permanent magnets) and permanent magnets 2 71 (i.e., secondary permanent magnets) are respectively embedded in the number of permanent magnet mounting holes 1 and permanent magnet mounting holes 2 70 in a one-to-one correspondence.

[0031] Among them, the outer sides of the two linear bearings 6 are respectively provided with a lower sleeve tubular fixing seat 21 and an upper sleeve tubular fixing seat 41, and an annular plugging is provided on the lower end outer wall of the lower sleeve tubular fixing seat 21 and the upper end outer wall of the upper sleeve tubular fixing seat 41. Both ends of the tubular rotating member 7 are connected and fixed to the inner wall of the shell through a rotating bearing 72, one of the rotating bearings 72 is installed between the upper end inner wall of the lower sleeve tubular fixing seat 21 and the lower end outer wall of the tubular rotating member 7, and the annular plugging on the lower end outer wall of the lower sleeve tubular fixing seat 21 is fixed to the lower end inner wall of the lower fixed sleeve 2; the other rotating bearing 72 is installed between the lower end inner wall of the upper sleeve tubular fixing seat 41 and the upper end outer wall of the tubular rotating member 7, and the annular plugging on the upper end outer wall of the upper sleeve tubular fixing seat 41 is fixed to the upper end inner wall of the lower fixed sleeve 2.

[0032] The tubular bracket 8 is sleeved on the tubular rotating member 7, and the two ends of the tubular bracket 8 are fixed on the outer walls of the tubular rotating member 7 at both ends. A number of permanent magnets 3 81 (i.e., tertiary permanent magnets) arranged in a ring are evenly and fixedly arranged on the outer wall of the tubular bracket 8 outside the tubular rotating member 7, and the magnetic flux directions of two adjacent permanent magnets 3 81 (i.e., tertiary permanent magnets) are opposite.

[0033] A plurality of power generation installation grooves 5 are embedded at the connection between the lower fixed sleeve 2 and the upper fixed sleeve 4. A plurality of generator systems 9 are provided and evenly distributed in an annular shape outside the annular permanent magnet three 81, and a plurality of generator systems 9 are respectively installed in a plurality of power generation installation grooves 5 in a one-to-one correspondence. An annular permanent magnet installation groove 51 is provided inside the plurality of power generation installation grooves 5, and a plurality of annular permanent magnet three 81 (i.e., tertiary permanent magnets) are all placed in the annular permanent magnet installation groove 51.

[0034] The generator system 9 includes a frame 92 and a permanent magnet 91 (i.e., a quadruple permanent magnet) slidably mounted in the frame 92, and a coil is arranged on the frame 92. Two parallel slide rails are arranged in a number of frames 92, and both ends of the permanent magnet 91 (i.e., a quadruple permanent magnet) are mounted in the slide rails, and the sliding movement direction of the permanent magnet 91 (i.e., a quadruple permanent magnet) in the slide rails points to or away from the axis of the direct-acting guide rod 3. During the rotation process of the permanent magnet 3 81 (i.e., a tertiary permanent magnet), the permanent magnet 91 (i.e., a quadruple permanent magnet) slides back and forth repeatedly in the slide rails under the positive and negative alternating effects of the attraction and repulsion of a number of permanent magnets 3 81 (i.e., a tertiary permanent magnet) and cuts the magnetic induction lines to generate electricity.

[0035] In the frequency-increasing generator of the present invention, when the permanent magnet 1 31 (i.e., the primary permanent magnet) moves linearly with the direct-acting guide rod 3, the rotation speed of the permanent magnet 2 71 (i.e., the secondary permanent magnet) is only related to the linear motion speed and the lift of the spiral permanent magnet itself, i.e., the magnification of the lead screw. Since spiral permanent magnets are currently difficult to manufacture and process, discrete circular magnetic blocks are used to approximate spiral permanent magnets, wherein the two-layer permanent magnet structure is as follows: Figure 3 shown.

[0036] In the frequency-increasing generator of the present invention, the two-stage speed-increasing principle is realized by the alternating arrangement of the permanent magnets 3 81 (i.e., the three-level permanent magnets). The permanent magnets 3 81 (i.e., the three-level permanent magnets) are selected in an even number, and the magnetization directions of the two adjacent permanent magnets are opposite. Select a certain permanent magnet 4 91 (i.e., the four-level permanent magnet) as the research object. During the rotation of the permanent magnet 3 81 (i.e., the three-level permanent magnet), the force received by the permanent magnet 4 91 (i.e., the four-level permanent magnet) is positive and negative alternately. For every rotation of the permanent magnet 3 81 (i.e., the three-level permanent magnet), the force direction of the permanent magnet 4 91 (i.e., the four-level permanent magnet) changes n / 2 times (n is the number of the permanent magnets 3 81), that is, n / 2 times of frequency increase is achieved. If the number of permanent magnets 3 81 (i.e., the three-level permanent magnets) is adjusted, that is, the value of n is changed, this will also directly change the frequency of the entire power generation system. If the permanent magnet three 81 (i.e., the three-level permanent magnet) is installed in an uneven manner, different frequency outputs of the power generation of the outer generator system 9 will be achieved.

[0037] Among them, environmental excitation usually appears in the form of multi-frequency superposition, but its main frequency energy occupies most of the energy. Therefore, it is assumed that the environmental excitation is: y=Pcos(ω0t), where P is the amplitude and ω0 is the frequency of the environmental excitation.

[0038] Because the inner ring permanent magnet 1 31 (i.e., the primary permanent magnet) is directly connected to the environmental excitation, its linear motion speed can be expressed as shown in formula (2). At the same time, according to the linear-rotation transmission coefficient of the magnetic screw, the rotation speed expression of the inner ring permanent magnet 2 71 (i.e., the secondary permanent magnet) can be obtained as formula (3).

[0039]

[0040]

[0041] Wherein λ is the helical lift of the second permanent magnet 71 (i.e., the secondary permanent magnet).

[0042] According to formula (2) and formula (3), the multiple of the first-stage frequency amplification can be derived:

[0043]

[0044] Where A1 is the frequency amplification factor of the first stage.

[0045] The second-stage frequency amplification is directly related to the number n of permanent magnets 3 81 (i.e., three-stage permanent magnets). When the second-stage amplification mechanism rotates one circle, the movement of permanent magnets 4 91 (i.e., four-stage permanent magnets) in the outer generator system 9 changes. times, so the secondary frequency amplification factor is:

[0046]

[0047] Then the final amplification factor after two-stage frequency up-amplification is:

[0048]

[0049] Wherein, A is the final magnification of the frequency-increasing amplification, A2 is the magnification of the second-stage frequency, and n is the number of permanent magnets 81 (i.e., three-stage permanent magnets).

[0050] The final corresponding movement speed of the permanent magnet 91 (i.e., the quadruple permanent magnet) in the generator system 9 for cutting the magnetic flux lines is:

[0051]

[0052] Among them, v2 is the cutting magnetic flux line speed, and L is the single cutting magnetic flux line distance.

[0053] A frequency-increasing generator of the present invention uses a two-stage frequency-increasing structure to increase the frequency of environmental excitation, thereby achieving an improvement in power generation efficiency under ultra-low frequency conditions. Taking waves as an example, waves are ultra-low frequency vibrations with a vibration frequency of less than 1 Hz. The efficiency of ultra-low frequency energy collection by traditional power generation systems is low. For example, in order to achieve the collection of usable electrical energy, the structural size must be increased, which makes the system structure bloated and not suitable for application. The frequency-increasing generator in the invention can amplify the ultra-low frequency by a high multiple, so that the speed at which the generator cuts the magnetic flux lines is greatly improved, thereby increasing the efficiency of low-frequency energy collection.

[0054] The present invention provides a frequency-increasing generator, which realizes a linear magnetic rotation type first-level frequency increase by amplifying the linear motion and the rotational motion by a certain proportion through a direct-acting guide rod 3 and a permanent magnet 1 31 (i.e., a primary permanent magnet) arranged thereon, and a tubular rotating member 7 and a permanent magnet 2 71 (i.e., a secondary permanent magnet) arranged on its outer wall, through linear rotation conversion; a plurality of permanent magnets 3 81 (i.e., a tertiary permanent magnet) arranged in a ring shape on the outside of the tubular rotating member 7, and a plurality of generator systems 9 located on the outside of the permanent magnets 3 81 (i.e., a tertiary permanent magnet), wherein the magnetic flux directions of two adjacent permanent magnets 3 81 (i.e., a tertiary permanent magnet) are opposite, and a permanent magnet 4 91 (i.e., a quaternary permanent magnet) that can slidably cut a coil is arranged in the generator system 9, and the frequency of the generator system 9 of the outer ring is further improved through the arrangement of the outer ring permanent magnets, thereby realizing a second-level frequency increase, and the coefficient of the second-level frequency amplification can be changed by adjusting the number of the outer ring permanent magnets 3 81 (i.e., a tertiary permanent magnet).

[0055] The invention discloses a frequency increasing generator, which adopts a two-stage frequency increasing structure to amplify and increase the frequency of ultra-low frequency environmental vibration, thereby realizing low-frequency energy collection in an ultra-low frequency state and improving power generation efficiency; different frequency increasing multiples can be achieved by reasonably adjusting the number of three-stage permanent magnets (i.e., permanent magnet three 81); the transmission of the two-stage frequency increasing structure adopts non-contact type, which can effectively avoid structural damage caused by impact, has good impact load adaptability, and increases the service life of the system.

[0056] The frequency increasing generator of the present invention has an ingenious design and a compact structure, can be applied to highly corrosive environments such as the ocean, has an obvious frequency increasing effect, high power generation efficiency and good stability.

[0057] The above is an exemplary description of the invention in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A frequency-increasing generator, characterized in that: The invention comprises a direct-acting guide rod (3), a tubular rotating member (7), and a generator system (9), wherein the tubular rotating member (7) is sleeved on the direct-acting guide rod (3), and the outer walls of the direct-acting guide rod (3) and the tubular rotating member (7) are respectively provided with a plurality of permanent magnets one (31) and a permanent magnet two (71) arranged in a spiral shape; a plurality of permanent magnets three (81) arranged in a ring shape are fixedly provided on the outer side of the tubular rotating member (7), and the magnetic flux directions of two adjacent permanent magnets three (81) are opposite; the generator system (9) is provided with a plurality of permanent magnets three (81) uniformly distributed in a ring shape on the outer side of the ring-shaped permanent magnets three (81), and the generator system (9) comprises a frame (92) and a permanent magnet four (91) slidably mounted in the frame (92), and a coil is provided on the frame (92); The device also comprises a shell, the shell comprising a device base (1) and a lower fixed sleeve (2) mounted on the device base (1), an upper fixed sleeve (4) being arranged above the lower fixed sleeve (2), linear bearings (6) being arranged on the outer walls of both ends of the direct-acting guide rod (3), and being respectively mounted on an axial center hole arranged at the axial center of the device base (1) and at the axial center of the upper fixed sleeve (4), and the tubular rotating member (7) being arranged between the two linear bearings (6); It also includes a tubular bracket (8), both ends of the tubular rotating member (7) are connected and fixed to the inner wall of the shell through a rotating bearing (72), the tubular bracket (8) is sleeved on the tubular rotating member (7), and both ends of the tubular bracket (8) are fixed to the outer walls of both ends of the tubular rotating member (7), and a plurality of permanent magnets (81) arranged in a ring are evenly distributed on the outer wall of the tubular bracket (8).

2. A frequency-increasing generator according to claim 1, characterized in that: A plurality of power generation installation grooves (5) are embedded at the connection between the lower fixed sleeve (2) and the upper fixed sleeve (4), and a plurality of the generator systems (9) are respectively installed in the plurality of power generation installation grooves (5) in a one-to-one correspondence.

3. A frequency-increasing generator according to claim 1, characterized in that: A plurality of permanent magnet mounting holes 1 and permanent magnet mounting holes 2 (70) are respectively arranged on the outer walls of the direct-acting guide rod (3) and the tubular rotating member (7); the plurality of permanent magnet mounting holes 1 and permanent magnet mounting holes 2 (70) are arranged at equal distances in a spiral ascending state; and the plurality of permanent magnets 1 (31) and permanent magnets 2 (71) are respectively embedded in the plurality of permanent magnet mounting holes 1 and permanent magnet mounting holes 2 (70) in a one-to-one correspondence.

4. A frequency-increasing generator according to claim 1, characterized in that: A lower sleeve tubular fixing seat (21) and an upper sleeve tubular fixing seat (41) are respectively arranged on the outer sides of the two linear bearings (6), and an annular plugging is arranged on the lower end outer wall of the lower sleeve tubular fixing seat (21) and the upper end outer wall of the upper sleeve tubular fixing seat (41); one of the rotary bearings (72) is installed between the upper end inner wall of the lower sleeve tubular fixing seat (21) and the lower end outer wall of the tubular rotating member (7), and the annular plugging on the lower end outer wall of the lower sleeve tubular fixing seat (21) is fixed to the lower end inner wall of the lower fixed sleeve (2); the other rotary bearing (72) is installed between the lower end inner wall of the upper sleeve tubular fixing seat (41) and the upper end outer wall of the tubular rotating member (7), and the annular plugging on the upper end outer wall of the upper sleeve tubular fixing seat (41) is fixed to the upper end inner wall of the lower fixed sleeve (2).

5. A frequency-increasing generator according to claim 2, characterized in that: An annular permanent magnet installation groove (51) is arranged inside a plurality of the power generation installation grooves (5), and a plurality of the annular permanent magnets (81) are all placed in the annular permanent magnet installation groove (51).

6. A frequency-increasing generator according to claim 2, characterized in that: Two mutually parallel slide rails are arranged in a plurality of the racks (92), and both ends of the permanent magnet four (91) are mounted in the slide rails; the sliding movement direction of the permanent magnet four (91) in the slide rails points to or away from the axis of the linear guide rod (3).

7. A frequency-increasing generator according to claim 1, characterized in that: Assume that the environmental excitation is: y = Pcos(ω0t), where P is the amplitude and ω0 is the frequency of the environmental excitation; The final magnification after frequency up-amplification is: Wherein, A is the final amplification factor of the frequency up-conversion amplification, n is the number of the permanent magnet three (81), and λ is the helical lift of the permanent magnet two (71); Then the speed of the permanent magnet four (91) in the generator system (9) when cutting the magnetic flux lines is: Among them, v2 is the cutting magnetic flux line speed, and L is the single cutting magnetic flux line distance.

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