CN218030304U

CN218030304U - Power generation device

Info

Publication number: CN218030304U
Application number: CN202221714426.XU
Authority: CN
Inventors: 董灏; 和钊
Original assignee: Xi'an Leitong Science & Technology Co ltd
Current assignee: Xi'an Leitong Science & Technology Co ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-12-13
Anticipated expiration: 2032-06-29

Abstract

The present disclosure provides a power generation device, including: a scroll expander having a working section and a power output section connected to each other, the power output section being rotatable; a generator having a power generation section and a power input section connected to each other, the power input section being disposed opposite to the power output section, and the power input section being rotatable; the first magnetic part is positioned on one side of the power output part close to the power input part and is connected with the power output part; the second magnetic part is positioned on one side of the power input part close to the power output part and is connected with the power input part, and the magnetism of one end of the second magnetic part facing the first magnetic part is opposite to that of one end of the first magnetic part facing the second magnetic part; the vortex expander and the first magnetic part are positioned in the sealed box body, the generator and the second magnetic part are positioned outside the sealed box body, and the part of the sealed box body positioned between the first magnetic part and the second magnetic part is made of non-magnetic materials.

Description

Power generation device

Technical Field

The disclosure relates to the technical field of power generation device manufacturing, in particular to a power generation device.

Background

Currently, in the field of power plant manufacturing technology, a scroll expander is generally used to drive a generator. However, in the application of using high-pressure gas to drive a turbo expander to generate electricity, the scroll expander and a generator are simultaneously sealed in a sealed box and connected through a connecting shaft.

However, the current power generation device composed of the scroll expander and the generator is complicated in use and maintenance, resulting in a large cost. Meanwhile, the special transformation of the scroll expander is needed, and a special connecting shaft is designed to connect the scroll expander and the generator, so that the design and manufacturing cost of the existing power generation device is high.

It is noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure and therefore may include information that does not constitute prior art that is already known to a person of ordinary skill in the art.

SUMMERY OF THE UTILITY MODEL

It is an object of the present disclosure to provide a power generation device that is less costly to use and maintain, and less costly to design and manufacture.

One aspect of the present disclosure provides a power generation apparatus, including:

a scroll expander having a working section and a power output section connected to each other, the power output section being rotatable;

a generator having a power generation section and a power input section connected to each other, the power input section being disposed opposite to the power output section, and the power input section being rotatable;

the first magnetic part is positioned on one side of the power output part close to the power input part and is connected with the power output part;

the second magnetic part is positioned on one side of the power input part close to the power output part and is connected with the power input part, and the magnetism of one end, facing the first magnetic part, of the second magnetic part is opposite to that of one end, facing the second magnetic part, of the first magnetic part;

the vortex expander and the first magnetic part are located in the sealed box body, the generator and the second magnetic part are located outside the sealed box body, and the part between the first magnetic part and the second magnetic part is made of non-magnetic materials.

In one exemplary embodiment of the present disclosure, the first magnetic part includes:

the surface of the first fixing frame, which is far away from the power output part, is provided with at least one first accommodating hole, and the first accommodating hole extends along a first direction;

at least one first magnet, the number of the first magnets is the same as that of the first accommodating holes, and one first magnet is positioned in one first accommodating hole;

wherein the first direction is a direction in which the power input portion points to the power output portion.

In an exemplary embodiment of the present disclosure, the power output portion includes a power output shaft, and the first magnetic portion further includes:

and the first connecting shaft is provided with a first end and a second end, the first end is connected with the first fixing frame, the second end extends towards the direction close to the power output shaft, and the second end is connected with the power output shaft.

In an exemplary embodiment of the present disclosure, one end of the power output shaft near the first connecting shaft is provided with a connecting hole, and the connecting hole extends in the first direction;

the second end is provided with a connecting column, and the connecting column can be located in the connecting hole and is fixedly connected with the connecting hole.

In an exemplary embodiment of the present disclosure, the first magnetic part further includes:

the stop piece is provided with a containing groove, the second end and one end, close to the first connecting shaft, of the power output shaft are located in the containing groove, the surface of the second end is connected with the inner wall of the containing groove, and the surface of one end, close to the first connecting shaft, of the power output shaft is attached to the inner wall of the containing groove.

In an exemplary embodiment of the present disclosure, the first connecting shaft includes:

one end of the first connecting section is connected with the first fixing frame, and the other end of the first connecting shaft extends towards the direction close to the power output shaft;

one end of the second connecting section is connected with the other end of the first connecting section, and the other end of the second connecting section extends towards the direction close to the power output shaft;

one end of the third connecting section is connected with the other end of the second connecting section, the other end of the third connecting section extends towards the direction close to the power output shaft, and the connecting column is located at the other end of the third connecting section;

the first end is one end of the first connecting section, the second end is the other end of the third connecting section, and the diameters of the first connecting section and the third connecting section are larger than that of the second connecting section.

In an exemplary embodiment of the present disclosure, the second magnetic part includes:

the surface of the second fixing frame, which is far away from the power input part, is provided with at least one second accommodating hole, and the second accommodating hole extends along the direction opposite to the first direction;

at least one second magnet, the number of the second magnet is the same as the number of the second accommodating holes, and one second magnet is located in one second accommodating hole.

In an exemplary embodiment of the present disclosure, the power input portion includes a power input shaft, and the second magnetic portion further includes:

and the second connecting shaft is provided with a third end and a fourth end, the third end is connected with the second fixing frame, the fourth end extends towards the direction close to the power input shaft, and the fourth end is connected with the power input shaft.

In an exemplary embodiment of the present disclosure, a projection of the first fixing frame in the first direction is a circle, the first fixing frame is provided with a plurality of first receiving holes, and the plurality of first receiving holes are uniformly distributed along a circumferential direction of the first fixing frame;

the projection of the second fixing frame in the first direction is circular, the second fixing frame is provided with a plurality of second accommodating holes, and the plurality of first accommodating holes are uniformly distributed along the circumferential direction of the first fixing frame;

the first accommodating holes and the second accommodating holes are the same in number and correspond to each other one by one, and the axis of each first accommodating hole is collinear with the axis of the corresponding second accommodating hole.

In an exemplary embodiment of the present disclosure, the first magnet and the second magnet are permanent magnets.

The technical scheme provided by the disclosure can achieve the following beneficial effects:

the power generation device provided by the present disclosure includes a scroll expander, a generator, a first magnetic part, a second magnetic part, and a sealed case. The vortex expander can output power to enable the power output part to rotate so as to drive the power input part of the generator to rotate, and therefore the generator can generate electricity. This is disclosed through setting up first magnetism portion and second magnetism portion to make the magnetism of first magnetism portion and second magnetism portion opposite, can make first magnetism portion can drive the motion of second magnetism portion emergence simultaneously. Therefore, the scroll expander and the generator can be connected in a non-contact manner, a special connecting shaft for connecting the scroll expander and the generator can be omitted, and design and manufacturing cost of the special connecting shaft can be reduced.

Simultaneously, because vortex expander and generator are connected through first magnetism portion and second magnetism portion non-contact, just also need not go to reform transform the vortex expander for carrying out the hub connection with the generator to can reduce the transformation cost of vortex expander, also can further reduce this power generation facility's the manufacturing degree of difficulty and cost.

In addition, this disclosure can prevent that the vortex expander from taking place working medium leakage and causing the problem of injury to surrounding environment and personnel in the operation in-process through setting up the seal box to set up vortex expander and first magnetism portion in the seal box.

Moreover, this disclosure sets up generator and second magnetism portion outside the seal box body, can be convenient for the maintenance of generator, promptly: compared with the prior art, when the generator breaks down, the sealed box body does not need to be opened to overhaul the generator. And, because this disclosure need not open the seal box when overhauing the generator, just also can further prevent that the working medium in the vortex expander from taking place to leak.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.

FIG. 1 illustrates a schematic structural diagram of a power plant according to an exemplary embodiment of the present disclosure;

FIG. 2 illustrates a schematic structural diagram of a first magnetic part according to an exemplary embodiment of the present disclosure;

fig. 3 illustrates a schematic structural view of a second magnetic part according to an exemplary embodiment of the present disclosure.

Description of reference numerals:

1. a scroll expander; 2. a generator; 3. a first magnetic part; 4. a second magnetic part; 5. sealing the box body; 6. a connecting bond; 7. a coupling; 8. a support; 11. a working part; 12. a power output section; 21. a power generation unit; 22. a power input section; 31. a first fixing frame; 32. a first magnet; 33. a first connecting shaft; 41. a second fixing frame; 42. a second magnetic part; 43. a second connecting shaft; 121. a power take-off shaft; 221. a power input shaft; 331. connecting columns; 332. a first stopper; 333. a first connection section; 334. a second connection section; 335. a third connection section; 3351. a first connection segment; 3352. a second connection subsection.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.

Although relative terms, such as "upper" and "lower," may be used in this specification to describe one element of an icon relative to another, these terms are used in this specification for convenience only, e.g., in accordance with the orientation of the examples described in the figures. It will be appreciated that if the device of the icon were turned upside down, the element described as "upper" would become the element "lower". When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via another structure.

The terms "a," "an," "the," "said" are used to indicate the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.; the terms "first" and "second", etc. are used merely as labels, and are not limiting on the number of their objects.

At present in power generation facility makes technical field, because vortex expander has specific service condition, when utilizing high-pressure gas drive vortex expander to start, can carry out special transformation to vortex expander to seal vortex expander and alternator in the box simultaneously, both connect through special hub connection, thereby high-pressure gas can drive its high-speed rotation behind the vortex expander and drive the connecting axle and make generator work produce the electric energy.

However, after earnest research on a conventional power generation device, the inventors of the present disclosure found that the conventional power generation device has many technical problems. Firstly, because the vortex expander and the generator in the existing power generation device are simultaneously placed in the sealed box body, the size of the box body is larger, the sealing difficulty of the box body is increased, and the use risk and the production cost of the power generation device are increased. Meanwhile, if one of the scroll expander and the generator fails in the working process, the whole box body needs to be opened, a special connecting shaft is disassembled, then the box body can be checked and maintained, and meanwhile, the box body is sealed again after maintenance is finished, so that the workload is increased. Moreover, the working medium in the scroll expander may leak and be lost after the sealed box body is opened.

Secondly, because the vortex expander and the generator are simultaneously arranged in the sealed box body, the problem of working medium gas leakage can be caused if the vortex expander fails in work, and the leaked working medium gas can damage the generator.

In addition, in the conventional power generation apparatus, in order to connect the scroll expander and the power generator 2 by the connection shaft, it is generally necessary to modify the scroll expander and design a special connection shaft adapted to the scroll expander and the power generator. This also increases the cost of modification of the scroll expander, and the cost of designing and manufacturing the connecting shaft, and thus it can be seen that the manufacturing cost required for the existing power generation apparatus is high and the manufacturing difficulty is high.

Based on the above technical problems found by the inventor of the present disclosure, he took a lot of time and paid great creative efforts, and invented a new power generation device. The power generation device can well solve the technical problems.

In one embodiment of the present disclosure, as shown in fig. 1, the power generation apparatus may include: the scroll expander comprises a scroll expander 1, a generator 2, a first magnetic part 3, a second magnetic part 4 and a sealed box 5.

The scroll expander 1 may be modified from a non-hermetic scroll compressor, but is not limited thereto. The scroll expander 1 may have a working portion 11 and a power output portion 12 connected to each other, the power output portion 12 being rotatable. The working portion 11 of the scroll expander 1 may have an inlet pipe and an outlet pipe, wherein high-pressure gas may enter the working portion 11 of the scroll expander 1 through the inlet pipe, and the outlet pipe may be used to discharge the high-pressure gas out of the working portion 11 of the scroll expander 1. When the high-pressure gas enters the working part 11, the power output part 12 can be driven to rotate.

The generator 2 may be an alternator 2, which may have a power generation section 21 and a power input section 22 connected to each other. The power input unit 22 may be provided opposite to the power output unit 12 of the scroll expander 1, and the power input unit 22 may be rotatable. When the power input portion 22 of the generator 2 rotates, the power input portion 22 can rotate the rotor in the alternator 2, thereby enabling the generator 2 to generate electricity.

The first magnetic part 3 may be located on a side of the power output part 12 close to the power input part 22, and connected to the power output part 12. The second magnetic part 4 may be located at a side of the power input part 22 close to the power output part 12, and connected to the power input part 22. The magnetism of the end of the second magnetic part 4 facing the first magnetic part 3 may be opposite to the magnetism of the end of the first magnetic part 3 facing the second magnetic part 4, so that the first magnetic part 3 can drive the second magnetic part 4 to move simultaneously, that is: when the power output part 12 rotates, the power output part 12 can drive the first magnetic part 3 to rotate, the first magnetic part 3 can drive the second magnetic part 4 to rotate simultaneously, and the power input part 22 can also rotate under the driving of the second magnetic part 4, so that the generator 2 can generate electricity.

Moreover, the power generation device provided by the disclosure is provided with the first magnetic part 3 and the second magnetic part 4, so that the scroll expander 1 and the power generator 2 can be connected in a non-contact manner, a special connecting shaft for connecting the scroll expander 1 and the power generator 2 can be omitted, and the design and manufacturing cost of the special connecting shaft can be reduced.

Meanwhile, the scroll expander 1 and the generator 2 are connected in a non-contact mode through the first magnetic part 3 and the second magnetic part 4, and the scroll expander 1 does not need to be modified for shaft connection with the generator 2, so that the modification cost of the scroll expander 1 can be reduced, and the manufacturing difficulty and cost of the power generation device can be further reduced.

In the present embodiment, the scroll expander 1 and the first magnetic part 3 may be located inside the sealed case 5, the generator 2 and the second magnetic part 4 may be located outside the sealed case 5, and the material of the portion of the sealed case 5 between the first magnetic part 3 and the second magnetic part 4 is a non-magnetic material.

This is disclosed through setting up the seal box to set up vortex expander 1 and first magnetism portion 3 in seal box 5, can prevent that vortex expander 1 from taking place working medium leakage and causing the problem of injury to surrounding environment and personnel in the operation in-process.

Moreover, the generator 2 and the second magnetic part 4 are arranged outside the sealed box body 5, so that the maintenance of the generator 2 can be facilitated, namely: compared with the prior art, when the generator 2 breaks down, the sealed box body 5 does not need to be opened to overhaul the generator 2. And, because this disclosure need not open sealed box 5 when overhauing generator 2, just also can further prevent that the working medium in vortex expander 1 from taking place to leak.

Simultaneously, because generator 2 sets up outside seal box 5 to the power generation facility that this disclosure provided can utilize seal box 5 to separate generator 2 and vortex expander 1, and then can effectively prevent the problem that the working medium gas leakage that produces when taking place owing to vortex expander 1 breaks down leads to generator 2 to damage.

In addition, because this power generation facility that this disclosure provided only sets up vortex expander 1 and first magnetism portion 3 in seal box 5, just so compare in prior art and can reduce the volume of seal box 5 by a wide margin to can reduce the sealed degree of difficulty of box, and then can reduce this power generation facility's use risk and manufacturing cost.

In one embodiment of the present disclosure, as shown in fig. 2, the first magnetic part 3 may include: a first holder 31 and at least one first magnet 32. The first fixing frame 31 may be connected to the power output portion 12, and a surface of the first fixing frame 31 away from the power output portion 12 is provided with at least one first receiving hole, which may extend along a first direction. In the present embodiment, the first direction may be a direction in which the power input portion 22 is directed toward the power output portion 12.

In an embodiment of the present disclosure, the projection of the first fixing frame 31 in the first direction may be a circle, but is not limited thereto, and the projection of the first fixing frame 31 in the first direction may also be other shapes, for example: rectangular, triangular, etc., all of which are within the scope of this disclosure, and may be selected according to actual needs.

In an embodiment of the present disclosure, the first receiving hole located on the first fixing frame 31 may penetrate through the first fixing frame 31 along the first direction, that is, it is understood that the first receiving hole may be a through hole.

The number of the at least one first magnet 32 may be the same as the number of the first receiving holes, and one first magnet 32 may be located in one first receiving hole. It is understood that the first magnets 32 and the first receiving holes may be in a one-to-one correspondence relationship, i.e., one first magnet 32 corresponds to one first receiving hole.

In this embodiment, the first magnet 32 may be in transition fit with the first receiving hole, so that the first magnet 32 may be stably mounted in the first receiving hole, thereby preventing the first magnet 32 from falling off during the rotation of the first fixing frame 31. Without limitation, the first magnet 32 and the first receiving hole may not be in transition fit, for example: the first magnet 32 and the first receiving hole may also be an interference fit or the first magnet 32 may also be adhered to the inner surface of the first receiving hole, which may be selected and arranged according to actual needs, and this is within the protection scope of the present disclosure.

In addition, the first magnet 32 may be a permanent magnet, and the use of the permanent magnet can improve the operation stability of the power generator and the service life of the power generator. Without limitation, the first magnet 32 may be a common magnet or an electromagnet, and may be configured according to actual needs, which is within the scope of the present disclosure.

In the present embodiment, the first fixing frame 31 may be provided with a plurality of first receiving holes, and the plurality of first receiving holes may be uniformly distributed along the circumferential direction of the first fixing frame 31. For example, the number of the first receiving holes may be 6 to 10, but is not limited thereto, and the number of the first receiving holes may also be other numbers, and may be set according to actual needs, which is within the protection scope of the present disclosure.

In one embodiment of the present disclosure, the power output portion 12 may include: and a power output shaft 121, and the vortex expander 1 can output power through the power output shaft 121. The first magnetic part 3 may further include: a first connecting shaft 33. The first connecting shaft 33 may have a first end and a second end, wherein the first end may be connected with the first fixing frame 31, the second end may extend in a direction close to the power take-off shaft 121, and the second end may be connected with the power take-off shaft 121. That is, therefore, the present disclosure can connect the power output shaft 121 and the first mount 31 through the first connecting shaft 33.

In this embodiment, the first end of the first connecting shaft 33 can be connected with the first fixing frame 31 through the connecting key 6, for example: the first end of the first connecting shaft 33 may be connected to the first fixing frame 31 by a round flat key. But not limited thereto, the first end of the second connecting shaft 43 is integrally formed with the first fixing frame 31, and can be selected and arranged according to actual needs, which is within the protection scope of the present disclosure.

In the present embodiment, one end of the power output shaft 121 near the first connecting shaft 33 may be provided with a connecting hole, which may extend in the first direction. The second end of the first connecting shaft 33 may be provided with a connecting post 331, and the connecting post 331 can be located in the connecting hole and tightly connected with the connecting hole.

The first magnetic part 3 may further include: a stopper 332. The stopper 332 may have a receiving groove, both the second end of the first connecting shaft 33 and the end of the power output shaft 121 close to the first connecting shaft 33 may be located in the receiving groove, a surface of the second end of the first connecting shaft 33 may be connected with an inner wall of the receiving groove, and a surface of the end of the power output shaft 121 close to the first connecting shaft 33 may be attached with the inner wall of the receiving groove. This disclosure can carry out further injectedly to the position of power output shaft 121 through setting up stopper 332 to can guarantee the axiality of power output shaft 121 and first connecting shaft 33, and then can make this power generation facility operation more steady.

In an embodiment of the present disclosure, the projection of the stopper 332 in the first direction may be semicircular, but is not limited thereto, and the projection of the stopper 332 in the first direction may also be circular, and the like, which are within the protection scope of the present disclosure.

In one embodiment of the present disclosure, the first connecting shaft 33 may include: a first connection segment 333, a second connection segment 334, and a third connection segment 335. One end of the first connecting section 333 may be connected to the first fixing frame 31, and the other end of the first connecting section 333 may extend toward the direction close to the power output shaft 121; one end of the second connection end may be connected to the other end of the first connection section 333, and the other end of the second connection section 334 may extend in a direction close to the power output shaft 121; one end of the third connection segment 335 may be connected with the other end of the second connection segment 334, the other end of the third connection segment 335 may extend in a direction close to the power output shaft 121, and the connection column 331 may be located at the other end of the third connection segment 335, and a surface of the third connection segment 335 may be connected with an inner wall of the accommodation groove.

In this embodiment, one end of the first connection segment 333 may be the sibling end of the first connection shaft 33, and the other end of the third connection segment 335 may be the second end of the first connection shaft 33. Also, the diameters of the first and

third connection sections

333 and 335 may be larger than the diameter of the second connection section 334.

In one embodiment of the present disclosure, the third connection segment 335 may include: a first connection sub-section 3351 and a second connection sub-section 3352. One end of the first connecting section 3351 may extend from the other end of the second connecting section 334, and the other end of the first connecting section 3351 may extend toward the direction close to the power output shaft 121; one end of the second connection sub-section 3352 may be connected to the other end of the first connection sub-section 3351, the other end of the second connection sub-section 3352 may extend in a direction close to the power take-off shaft 121, and a side surface of the second connection sub-section 3352 may be connected to an inner wall of the stopper 332. Also, in this embodiment, the diameter of the second connector section 3352 may be greater than the diameter of the first connector section 3351.

In addition, in one embodiment of the present disclosure, the first connection segment 333, the second connection segment 334, the first and

second connection sub-segments

3351 and 3352, and the connection column 331 may be coaxially disposed. However, the first connecting shaft 33 may be a crankshaft to ensure that the scroll expander 1 and the generator 2 can be connected when the scroll expander 1 and the generator 2 are not coaxial.

In one embodiment of the present disclosure, as shown in fig. 3, the second magnetic part 4 may include: a second holder 41 and at least one second magnet 42. The second fixing frame 41 may be connected to the power input portion 22, and a surface of the second fixing frame 41 away from the power input portion 22 is provided with at least one second receiving hole, which may extend in a direction opposite to the first direction.

In an embodiment of the present disclosure, the projection of the second fixing frame 41 in the first direction may be a circle, but is not limited thereto, and the projection of the second fixing frame 41 in the first direction may also be other shapes, for example: rectangular, triangular, etc., all of which are within the scope of this disclosure, and may be selected according to actual needs.

In an embodiment of the present disclosure, the second receiving hole located on the second fixing frame 41 may penetrate through the second fixing frame 41 in a direction opposite to the first direction, that is, it is to be understood that the second receiving hole may also be a through hole.

The number of the at least one second magnet 42 may be the same as the number of the second receiving holes, and one second magnet 42 may be positioned in one second receiving hole. It is understood that the second magnets 42 and the second receiving holes may be in a one-to-one correspondence, i.e., one second magnet 42 corresponds to one second receiving hole.

In this embodiment, the second magnet 42 may be in transition fit with the second receiving hole, so that the second magnet 42 may be stably mounted in the second receiving hole, thereby preventing the second magnet 42 from falling off during the rotation of the second fixing frame 41. Without limitation, the second magnet 42 and the second receiving hole may not be in transition fit, for example: the second magnet 42 and the second receiving hole may also be an interference fit or the second magnet 42 may also be adhered to an inner surface of the second receiving hole, which may be selected and arranged according to actual needs, and this is within the protection scope of the present disclosure.

In addition, the second magnet 42 may be a permanent magnet, and the use of the permanent magnet can improve the operation stability of the power generator and also improve the service life of the power generator. Without limitation, the first magnet 32 may be a common magnet or an electromagnet, and may be configured according to actual needs, which is within the protection scope of the present disclosure.

In the present embodiment, the second fixing frame 41 may be provided with a plurality of second receiving holes, and the plurality of second receiving holes may be uniformly distributed along a circumferential direction of the second fixing frame 41. For example, the number of the second receiving holes may also be 6 to 10, but is not limited thereto, and the number of the first receiving holes may also be other numbers, and may be set according to actual needs, which is within the protection scope of the present disclosure.

In one embodiment of the present disclosure, the first receiving holes and the second receiving holes may be equal in number, and the first receiving holes and the second receiving holes may correspond to each other one by one, and an axis of each first receiving hole may be collinear with an axis of its corresponding second receiving hole. This disclosure sets up the quantity through with first accommodation hole and second accommodation hole to the same quantity, can make the magnetic force of first magnetism portion 3 and second magnetism portion 4 even, also can guarantee that first magnetism portion 3 and second magnetism portion 4 are more stable when rotatory through magnetic force.

In one embodiment of the present disclosure, the power input portion 22 may include: the power input shaft 221 can transmit power to the generator 2 via the power input shaft 221. The second magnetic part 4 may further include: and a second connecting shaft 43. The second connecting shaft 43 may have a third end that may be connected to the second holder 41, and a fourth end that may extend in a direction close to the power input shaft 221, and may be connected to the power input shaft 221. That is, the present disclosure may connect the power input shaft 221 and the second fixing frame 41 through the second connecting shaft 43, and when the second fixing frame 41 rotates, the power input shaft 221 may be rotated by the second connecting shaft 43, so that the generator 2 generates electricity.

In the present embodiment, the third end of the second connecting shaft 43 may be integrally formed with the second fixing frame 41, but is not limited thereto, and the second connecting shaft 43 may also be connected with the first fixing frame 31 through the connecting key 6, for example: the first end of the first connecting shaft 33 can be connected with the first fixing frame 31 through a round flat key, and can be selected and arranged according to actual needs, which is within the protection scope of the present disclosure.

The fourth end of the second connecting shaft 43 may be connected to the power input shaft 221 through the coupling 7, but the fourth end of the second connecting shaft 43 may also be connected to the power input shaft 221 through other methods, such as: it is within the scope of the present disclosure that the fourth end of the second connecting shaft 43 may be keyed to the power input shaft 221, etc.

In an embodiment of the present disclosure, the material of the first fixing frame 31 and the second fixing frame 41 may be super engineering plastic, so that the first fixing frame 31 and the second fixing frame 41 can have strong structural strength.

In one embodiment of the present disclosure, the remainder of the sealed housing 5 may not be a non-magnetic material. For example, the rest of the sealing case 5 may be made of an alloy material, and to the extent that the sealing case 5 located between the first magnetic part 3 and the second magnetic part 4 is used as the front surface, the left surface, the right surface, the rear surface, and the top surface of the sealing case 5 may be made of an aluminum alloy, and the bottom surface of the sealing case 5 may be made of a copper alloy. But not limited thereto, the left, right, rear, top and bottom surfaces of the sealed box 5 may be made of aluminum alloy or copper alloy, which is within the scope of the present disclosure.

In an embodiment of the present disclosure, the power generation device may further be provided with a bracket 8, the bracket 8 may be fixedly connected to the bottom surface of the sealed box 5, and the scroll expander 1 may be fixed to the bracket 8, so as to ensure that the axis of the power output shaft 121 of the scroll expander 1 and the axis of the power output shaft 121 of the generator 2 are collinear, thereby enabling the power generation device to operate more stably.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims

1. An electrical power generation device, comprising:

2. The power generation apparatus according to claim 1, wherein the first magnetic part comprises:

3. The power generation apparatus according to claim 2, wherein the power output portion includes a power output shaft, the first magnetic portion further comprising:

4. The power generation apparatus of claim 3,

one end of the power output shaft, which is close to the first connecting shaft, is provided with a connecting hole, and the connecting hole extends along the first direction;

the second end is provided with a connecting column which can be positioned in the connecting hole and is fixedly connected with the connecting hole.

5. The power generation apparatus of claim 4, wherein the first magnetic part further comprises:

the stop piece is provided with a containing groove, the second end and one end, close to the first connecting shaft, of the power output shaft are both located in the containing groove, the surface of the second end is connected with the inner wall of the containing groove, and the surface, close to the end of the first connecting shaft, of the power output shaft is attached to the inner wall of the containing groove.

6. The power generation apparatus of claim 5, wherein the first connection shaft comprises:

7. The power generation apparatus according to claim 2, wherein the second magnetic part comprises:

8. The power generation apparatus of claim 7, wherein the power input comprises a power input shaft, the second magnetic part further comprising:

9. The power generation device of claim 7,

the projection of the first fixing frame in the first direction is circular, the first fixing frame is provided with a plurality of first accommodating holes, and the first accommodating holes are uniformly distributed along the circumferential direction of the first fixing frame;

10. The power generation apparatus of claim 7, wherein the first and second magnets are permanent magnets.