TWI785963B - Double acting solid piston Stirling heating and cooling machine - Google Patents

Abstract

A double-acting solid piston Stirling heating and cooling machine, which includes a first Stirling machine, a second Stirling machine and a solid piston assembly, the solid piston assembly is connected to the first Stirling machine and the second Stirling machine, and the solid piston assembly includes The two-way piston allows one of the first Stirling machine and the second Stirling machine to be used as the heat receiving part and the other as the heat releasing part according to the requirement, which can improve the convenience of use.

Description

Double acting solid piston Stirling heating and cooling machine

The invention relates to the technical field of Stirling heating and refrigerating machines, in particular to a double-acting solid piston Stirling heating and refrigerating machine.

Please refer to the conventional Stirling heating and cooling machine. As described in the No. I539125 patent of the Republic of China, a Stirling heating and cooling machine is provided, which mainly includes a Stirling engine (1) and a cooling assembly (2). As shown in Figures 3-6 of this patent, the heating part (132) of the Stirling engine (1) is heated with thermal energy, and after being heated, the working gas in the first accommodation space (131) is heated and expands to the second The working space (15) moves and pushes the displacement of the piston (12), and then the working gas enters the cooling unit (2), and releases heat energy through the heat exhausting part (26) and the cooling part (22), when the working gas When the cooling volume shrinks, it will return to the Stirling engine (1), and then reset the piston (12), and when the heating part (132) continues to be heated, the working gas in the first accommodation space (131) will It expands again when it is heated, and pushes the piston (12) to displace again, so as to achieve the effect of heating and cooling through the mechanism of heating and releasing heat.

However, in order to achieve the effect of cooling (radiating heat), the above-mentioned Stirling heating and refrigerating machine must be equipped with a refrigerating component (2), and the structure is relatively complicated.

Moreover, the above-mentioned Stirling heating and cooling machine is mainly composed of the Stirling engine (1) and the cooling assembly (2), which will limit the heat-receiving and heat-dissipating parts (must be heated by the Stirling engine (1), Then by refrigerating assembly (2) exothermic), also subject to certain restriction in use.

The first main purpose of the present invention is to provide a double-acting solid piston Stirling heating refrigerator, which does not need to be provided with refrigeration components as described in the prior art, and is more compact in structure.

The second main purpose of the present invention is to provide a double-acting solid piston Stirling heating and cooling machine, which provides the selectivity of heating and heat releasing parts, and improves the convenience of use.

In order to achieve the above object, the present invention provides a double-acting solid piston Stirling heating and cooling machine, which includes: a first Stirling machine with a first chamber inside, and the first Stirling machine has a first Displacer, a first stopper and a first heat conductor, the first displacer, the first stopper and the first heat conductor are located in the first chamber, the first displacer A first elastic unit is connected, and the first elastic unit is connected with a first displacer column, and the first displacer column is pressed against the first stopper, and the first heat conductor surrounds the first displacer The evaporator divides the first chamber into a first subchamber and a second subchamber, the first heat conductor includes a first heat conduction part, a first regeneration part and a second heat conduction part, The first regeneration part is located between the first heat conduction part and the second heat conduction part; a second Stirling machine has a second chamber inside, and the second Stirling machine has a second displacer, a The second stopper and a second heat conductor, the second displacer, the second stopper and the second heat conductor are located in the second chamber, the second displacer is connected to a second elastic unit, the second elastic unit is connected to a second displacer column, the second displacer column is pressed against the second stopper, the second heat conductor surrounds the second displacer and moves the second displacer The two chambers are divided into a third sub-chamber and a fourth sub-chamber, the second heat conductor includes a third heat conduction part, a second regeneration part and a fourth heat conduction part, the second regeneration part is between the third heat transfer portion and the fourth heat transfer portion; and a solid piston assembly having a housing and a bi-directional piston, the housing being connected between the first Stirling machine and the second Stirling machine, inside the shell There is a third chamber, the two-way piston is movably arranged in the housing and located in the third chamber, the two-way piston has a first piston head and a second piston head, the first piston head connects the second piston head The second subchamber is separated from the third chamber, the second piston head separates the third subchamber from the third chamber, and the first piston head is connected to the first stopper with a first Three elastic units, the second piston head and the second stopper are connected with a fourth elastic unit.

Thereby, a double-acting solid piston Stirling heating refrigerator provided by the present invention does not need to be provided with refrigeration components as described in the prior art, and the first Stirling machine, the second Stirling machine and the solid piston The technical characteristics of the components can achieve the effect of heating and cooling, making the structure more streamlined.

And, a double-acting solid piston Stirling heating and cooling machine provided by the present invention, through the technical characteristics of the first Stirling machine, the second Stirling machine and the solid piston assembly, can be used in the first Stirling machine according to the use requirements One of the second Stirling machines is arbitrarily selected as the heating part and the other is used as the heat releasing part, which improves the convenience of use.

10: Double acting solid piston Stirling heating and cooling machine

20: The first Stirling machine

21: First chamber

211: The first sub-chamber

213: second sub-chamber

23: First Displacer

24: The first elastic unit

25: The first stopper

26: First displacer column

27: The first heat conductor

271: The first heat conduction part

273: The first regeneration department

275: Second heat conduction part

30: Second Stirling machine

31: second chamber

311: the third sub-chamber

313: The fourth sub-chamber

33: The second displacer

34: Second elastic unit

35: The second stopper

36: The second displacer column

37: Second heat conductor

371: The third heat conduction part

373: The second regeneration department

375: The fourth heat conduction part

40: Solid piston assembly

41: Shell

43: Two-way piston

431: The first piston head

432: The third elastic unit

433: Second piston head

434: The fourth elastic unit

45: The third chamber

50:Motor/generator assembly

51: Movers

53: Coil

10': double acting solid piston Stirling heating and cooling machine

213': the second sub-chamber

311': the third sub-chamber

41': shell

411': the first channel

413': the second channel

Fig. 1 is a schematic diagram of the first preferred embodiment of the present invention.

Fig. 2 is a schematic view 1 of the use state of the first preferred embodiment of the present invention.

Fig. 3 is a schematic view 2 of the use state of the first preferred embodiment of the present invention.

Fig. 4 is a schematic view 3 of the use state of the first preferred embodiment of the present invention.

Fig. 5 is a schematic view 4 of the use state of the first preferred embodiment of the present invention.

Fig. 6 is a schematic diagram of the second preferred embodiment of the present invention.

In order to describe the technical features of the present invention in detail, hereby aim at the following first preferred embodiment, and explain as follows in conjunction with Figures 1-5, the preferred embodiments of the present invention are used, such as "the first", "the first" Second", "third", and similar words, do not indicate any order or importance, but are merely names used to distinguish features.

As shown in Figure 1, the double-acting solid piston Stirling heating and cooling machine 10 of the first preferred embodiment of the present invention is mainly composed of a first Stirling machine 20, a second Stirling machine 30 and a solid piston assembly 40. composition.

The first Stirling machine 20 has a first chamber 21 inside, and the first Stirling machine 20 has a first displacer 23, a first stopper 25 and a first heat conductor 27, the first The displacer 23, the first stopper 25 and the first heat conductor 27 are located in the first chamber 21, the first displacer 23 is connected to a first elastic unit 24, and the first elastic unit 24 is then Connect a first displacer column 26, the first displacer column 26 is against the first stopper 25, the first heat conductor 27 surrounds the first displacer 23 and the first cavity The chamber 21 is divided into a first subchamber 211 and a second subchamber 213, the first heat conductor 27 includes a first heat conduction part 271, a first regeneration part 273 and a second heat conduction part 275, the The first regeneration part 273 is located between the first heat conduction part 271 and the second heat conduction part 275 . In this preferred embodiment, the first elastic unit 24 can be but not limited to a spring; the first heat conduction part 271 and the second heat conduction part 275 can be but not limited to heat conduction fins or other materials that can conduct heat, The first regeneration part 273 can be, but not limited to, a porous material of metal or ceramic.

The second Stirling machine 30 has a second chamber 31 inside, and the second Stirling machine 30 has a second displacer 33, a second stopper 35 and a second heat conductor 37, the second The displacer 33, the second stopper 35 and the second heat conductor 37 are located in the second chamber 31, the second displacer 33 is connected with a second elastic unit 34, and the second elastic unit 34 is connected with a second displacer column 36, and the second displacer column 36 is against the second stopper 35, and the second heat conductor 37 surrounds the second displacer 33 and divides the second chamber 31 into a third subchamber 311 and a fourth subchamber 313. The second heat conductor 37 includes a third heat conducting part 371, A second regeneration part 373 and a fourth heat conduction part 375 , the second regeneration part 373 is located between the third heat conduction part 371 and the fourth heat conduction part 375 . In this preferred embodiment, the second elastic unit 34 can be but not limited to a spring; the third heat conducting part 371 and the fourth heat conducting part 375 can be but not limited to heat conducting fins or other materials that can conduct heat, The second regeneration part 373 can be, but not limited to, a porous material of metal or ceramic.

The solid piston assembly 40 has a housing 41 and a bidirectional piston 43, the housing 41 is connected between the first Stirling machine 20 and the second Stirling machine 30, a third chamber 45 is provided in the housing 41 , the two-way piston 43 is movably arranged on the casing 41 and is located in the third chamber 45, the two-way piston 43 has a first piston head 431 and a second piston head 433, and the first piston head 431 will The second subchamber 213 is separated from the third chamber 45, the second piston head 433 separates the third subchamber 311 from the third chamber 45, and the first piston head 431 is separated from the third chamber 45. The first stopper 25 is connected with a third elastic unit 432, and the second piston head 433 is connected with the second stopper 35 with a fourth elastic unit 434. In addition, the third elastic unit 432 can also be Connected to the first piston head 431 and the housing 41 , the fourth elastic unit 434 can also be connected to the second piston head 433 and the housing 41 .

In this preferred embodiment, the first heat conduction part 271 is close to the first subchamber 211, the second heat conduction part 275 is close to the second subchamber 213, and the third heat conduction part 371 is close to the first subchamber 213. The third sub-chamber 311 , the fourth heat conducting portion 375 is close to the fourth sub-chamber 313 .

In this preferred embodiment, a motor/generator assembly 50 is further included, the motor/generator assembly 50 is located in the housing 41 of the solid piston assembly 40, and can drive the action of the bidirectional piston 43, Thereby, the actuation of the two-way piston 43 is improved, thereby improving the heating and cooling efficiency of the present invention. The motor/generator assembly 50 has a mover 51 and a coil 53. By the action of the bidirectional piston 43, the magnet on the mover 51 moves accordingly, and the magnetic field changes with the coil 53, thereby generating an induced current. In addition to the effects of heating and cooling mentioned above, the effect of generating electricity can also be achieved. In other preferred embodiments, if the heating and cooling efficiency requirements are not high, or there is no need for power generation, the technical characteristics of the motor/generator assembly 50 can be omitted, so the technical characteristics of the motor/generator assembly 50 It is not a necessary condition for achieving the present invention.

It can be explained from the foregoing structure that, as shown in FIG. 1, the double-acting solid piston Stirling heating refrigerator provided by the present invention uses the first Stirling machine 20 and the second Stirling machine 30 with the solid The piston assembly 40 is connected, and its heating and cooling actions are as follows.

As shown in Figures 2-3, when the first Stirling machine 20 absorbs heat from the first subchamber 211 side, the heat will be introduced into the first subchamber 211 and make the inside of the first subchamber 211 The gas is heated and expanded, and after the gas expands, it pushes the first displacer 23 to move toward the second subchamber 213, and drives the bidirectional piston 43 to move toward the third subchamber 311, while the motor/generator The mover of the component 50 moves towards the third sub-chamber 311 synchronously, so that heat is discharged from the third sub-chamber 311 to achieve a heating effect.

Thereafter, as shown in FIGS. 3-4 , after the heat is discharged, the first displacer 23 moves toward the first subchamber 211 , and the second displacer 33 moves toward the third subchamber 311 , The gas in the first chamber 21 and the second chamber 31 is isovolumetrically regenerated by the first regeneration part 273 and the second regeneration part 373 respectively, and then by the second sub-chamber 213 side. Discharge heat to achieve heating effect.

Thereafter, as shown in FIGS. 4-5 , since the heat is discharged from the side of the second subchamber 213, the gas is compressed, and the bidirectional piston 43 moves toward the second subchamber 213, while the motor/generator assembly 50 The mover moves towards the second sub-chamber 213 synchronously, which also causes the second displacer 33 to move towards the third sub-chamber 311 The movement causes the gas in the fourth sub-chamber 313 to be compressed, and then reaches the side of the fourth sub-chamber 313 to produce a cooling effect.

Thereafter, as shown in Figure 5-2, the first displacer 23 and the second displacer 33 move to the second subchamber 213 and the fourth subchamber 313 respectively, so that the first chamber The first regeneration unit 273 in the chamber 21 and the second regeneration unit 373 in the second chamber 31 perform isovolumic regeneration.

Accordingly, a double-acting solid piston Stirling heating refrigerator provided by the present invention does not need to be provided with refrigeration components as described in the prior art, and the first Stirling machine 20 and the second Stirling machine 30 and the technical features of the solid piston assembly 40 can achieve the effects of heating and cooling, making the structure more streamlined.

And, a double-acting solid piston Stirling heating and cooling machine provided by the present invention, through the technical characteristics of the first Stirling machine 20, the second Stirling machine 30 and the solid piston assembly 40, can be used according to the needs of use. One of the first Stirling machine 20 and the second Stirling machine 30 is arbitrarily selected as the heat receiving part and the other is used as the heat releasing part, which improves the convenience of use.

In addition, the present invention provides a double-acting solid piston Stirling heating and cooling machine, through the first Stirling machine 20, the second Stirling machine 30, the solid piston assembly 40 and the motor/generator assembly The technical feature of 50 can allow the first Stirling machine 20 and the second Stirling machine 30 to be used as engines or refrigerators at the same time, such as the first Stirling machine 20 and the second Stirling machine 30 as engines, Electricity can be generated through an external heat source. If the first Stirling machine 20 and the second Stirling machine 30 are used as refrigerators, the motor/generator assembly 50 can be used to cool or pump heat, thereby achieving the combined supply of heating and cooling. Effect.

In addition, in the double-acting solid piston Stirling heating and cooling machine provided by the present invention, the magnet on the mover 51 is activated by the action of the bidirectional piston 43 of the motor/generator assembly 50 The technical feature of the accompanying movement makes the magnetic field of the magnet on the mover 51 and the coil 53 change, thereby generating an induced current, which can achieve the effect of generating electricity.

The double-acting solid piston Stirling heating and cooling machine 10' of the second preferred embodiment of the present invention is basically the same as that of the first preferred embodiment, except that the housing 41' is further extended with a first channel 411 ' and a second channel 413', the first channel 411' communicates with the second sub-chamber 213', and the second channel 413' communicates with the third sub-chamber 311'; thereby allowing the present invention to be based on different The use environment should be modified to match the use environment, which is convenient for use.

The remaining structures and achievable effects of this second preferred embodiment are the same as those of the aforementioned first preferred embodiment, so they will not be repeated here.

10: Double acting solid piston Stirling heating and cooling machine

20: The first Stirling machine

21: First chamber

211: The first sub-chamber

213: second sub-chamber

23: First Displacer

24: The first elastic unit

25: The first stopper

26: First displacer column

27: The first heat conductor

271: The first heat conduction part

273: The first regeneration department

275: Second heat conduction part

30: Second Stirling machine

31: second chamber

311: the third sub-chamber

313: The fourth sub-chamber

33: The second displacer

34: Second elastic unit

35: The second stopper

36: The second displacer column

37: Second heat conductor

371: The third heat conduction part

373: The second regeneration department

375: The fourth heat conduction part

40: Solid piston assembly

41: shell

43: Two-way piston

431: The first piston head

432: The third elastic unit

433: Second piston head

434: The fourth elastic unit

45: The third chamber

50:Motor/generator assembly

51: Movers

53: Coil

Claims (4)

A double-acting solid piston Stirling heating and cooling machine, which includes: a first Stirling machine with a first chamber inside, and the first Stirling machine has a first air displacer and a first stopper and a first heat conductor, the first displacer, the first stopper and the first heat conductor are located in the first chamber, the first displacer is connected to a first elastic unit, the first The elastic unit is connected to a first displacer column, and the first displacer column is pressed against the first stopper, and the first heat conductor surrounds the first displacer and displaces the first chamber area. Divided into a first sub-chamber and a second sub-chamber, the first heat conductor includes a first heat conduction part, a first regeneration part and a second heat conduction part, the first regeneration part is located on the first heat conduction part Between the part and the second heat conduction part; a second Stirling machine with a second chamber inside, the second Stirling machine has a second air shifter, a second stopper and a second heat conduction device, the second displacer, the second stopper and the second heat conductor are located in the second chamber, the second displacer is connected to a second elastic unit, and the second elastic unit is connected to a The second displacer column, the second displacer column is against the second stopper, the second heat conductor surrounds the second displacer and partitions the second chamber into a third subsection chamber and a fourth subchamber, the second heat conductor includes a third heat transfer part, a second regeneration part and a fourth heat transfer part, the second regeneration part is located between the third heat transfer part and the fourth heat transfer part between the heat conducting parts; and a solid piston assembly having a housing and a bidirectional piston, the housing is connected between the first Stirling machine and the second Stirling machine, the housing has a third chamber, The two-way piston is movably arranged in the housing and located in the third chamber. The two-way piston has a first piston head and a second piston head. The first piston head connects the second sub-chamber with the first piston head. The three chambers are separated, the second piston head separates the third sub-chamber from the third chamber, and the first piston head is connected to the first stopper with a third elastic unit, the second A fourth elastic unit is connected to the piston head and the second stopper. The double-acting solid piston Stirling heating refrigerator as described in claim 1, wherein: the first heat transfer part is close to the first subchamber, the second heat transfer part is close to the second subchamber, and the first heat transfer part is close to the second subchamber. The third heat conduction part is close to the third sub-chamber, and the fourth heat conduction part is close to the fourth sub-chamber. The double-acting solid piston Stirling heating refrigerator as described in claim 1, wherein: it further includes a motor/generator assembly, the motor/generator assembly is located in the housing of the solid piston assembly, and can drive the two-way When the piston moves, the motor/generator assembly has a mover and a coil. With the action of the bidirectional piston, the magnet on the mover moves accordingly, and changes the magnetic field with the coil to generate an induced current. The double-acting solid piston Stirling heating refrigerator as described in claim 1, wherein: the shell further extends a first channel and a second channel, the first channel communicates with the second sub-chamber, and the second channel communicate with the third subchamber.

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