CN204024852U - A kind of piston position structure of Stirling circulator - Google Patents
A kind of piston position structure of Stirling circulator Download PDFInfo
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- CN204024852U CN204024852U CN201420459373.0U CN201420459373U CN204024852U CN 204024852 U CN204024852 U CN 204024852U CN 201420459373 U CN201420459373 U CN 201420459373U CN 204024852 U CN204024852 U CN 204024852U
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- piston
- pressure
- airtight cavity
- bearing portion
- stirling circulator
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Abstract
The utility model provides a kind of piston position structure of Stirling circulator, Stirling circulator comprises airtight cavity and piston, described piston is located in described airtight cavity, and can along to-and-fro motion in described airtight cavity, be provided with some through holes between the end face of one end of described piston and the side coordinated with described airtight cavity inwall, described airtight cavity inwall is provided with the some pressure relief vents matched with described some through holes.The technical solution of the utility model is by the through hole that cooperatively interacts and pressure relief vent, when not increasing component and the energy, utilize original structure and power, realize the accurate location to piston movement position, and transformation facilitates, is easy to realize, reduce control difficulty, improve the running precision of Stirling circulator.
Description
Technical field
The utility model belongs to machinery control field, relates to a kind of position structure, particularly relates to a kind of piston position structure of Stirling circulator.
Background technique
Different from conventional recycle theory, Stirling cycle theory is the more efficient thermodynamic theories of one.Along with new material, new technology development and petroleum resources worsening shortages, Stirling circulator is more and more by the attention of those skilled in the art.
But in the mechanical structure of existing Stirling circulator, by gas pressure in cavity and the elastic force of spring or the magneto drive reciprocating motion of the pistons of magnet.Easily cause the instability of piston movement time excessive at gas pressure, too small, be difficult to form effective control simultaneously.And due to piston with cavity volume is less and times of exercise is more, increase complicated position control device cost higher and be difficult to effective enforcement.
CN 101373109 discloses a kind of free piston type Stirling refrigeration cycle machine as Stirling circulator, it comprises cylinder 7, reciprocating piston 18 and the electromagnetic mechanism 19 that is made up of mover 20 and stator 35 in described cylinder 7, the outside of yoke 23 in wherein said mover 20 is configured to make described permanent magnet 24 to be arranged on to be made up of magnetic permeable material, described piston 18 is arranged with axially-aligned with mover 20, and described stator 35 and described cylinder 7 are also arranged with axially-aligned.By such configuration, the external diameter RM of the mover 20 of described electromagnetic drive mechanism 19 can be reduced, thus can reduce at the internal diameter RS of the described stator 35 of described mover 20 arranged outside and external diameter, and the final external diameter reducing whole Stirling cycle refrigerator.But the mechanical structure of this patent also exists above-mentioned technical problem equally.
Model utility content
In order to solve the problems of the technologies described above, the utility model is by the through hole that cooperatively interacts and pressure relief vent, when not increasing component and the energy, utilize original structure and power, realize the accurate location to piston movement position, and transformation facilitates, is easy to realize, and reduces control difficulty, improves the running precision of Stirling circulator.
For achieving the above object, concrete technological scheme is as follows:
A kind of piston position structure of Stirling circulator, described Stirling circulator comprises airtight cavity and piston, described piston is located in described airtight cavity, and can along to-and-fro motion in described airtight cavity, be provided with some through holes between the end face of one end of described piston and the side coordinated with described airtight cavity inwall, described airtight cavity inwall is provided with the some pressure relief vents matched with described some through holes.
Preferably, when described piston movement is to required position location, what described piston hole was positioned at that one end of piston side matches with described pressure relief vent is in same position.
Preferably, the inwall Spielpassung of described piston and described airtight cavity, pressure gas body is provided with in described airtight cavity, one end of described piston is located in described pressure gas body, the other end of described piston is connected with elastic element or electromagnetic mechanism, the to-and-fro motion under the pressure of described pressure gas body internal pressure gas and the interaction of the elastic force of elastic element or the magnetic force of electromagnetic mechanism of described piston.
Preferably, through hole on described piston comprises to be located at pressure-bearing portion in described piston and to unload splenium, the one end in described pressure-bearing portion is located on the end face of one end of described piston, described one end of unloading splenium is located on the side of described piston, the described pressure-bearing portion the other end and the described the other end unloading splenium are located in described piston, and communicate.
Preferably, the bearing of trend in the pressure-bearing portion of described through hole is identical with the vibration-direction of described piston, described in unload the bearing of trend of splenium vertical with the bearing of trend in described pressure-bearing portion.
Preferably, the other end that described pressure-bearing portion is located in described piston is also provided with buffer part, described in unload splenium the other end one end of being located at described pressure-bearing portion and the buffer part of the other end between.
Preferably, the end face of one end of described piston is also provided with the first pressure spot and the second pressure spot, when the pressure of the pressure gas body internal pressure gas of described airtight cavity acts on the end face of described piston one end, the pressure of described first pressure spot is greater than the pressure of described second pressure spot, and the second pressure spot place of described piston one end end face is located in the one end in described through hole pressure-bearing portion.
Preferably, the sectional shape of the end face of described piston one end is curved, and the edge of piston one end end face is located in the one end in described through hole pressure-bearing portion.
Preferably, the side of described piston is also provided with circular groove relative to described some through holes, described circular groove is communicated with one end that described some through holes are positioned at piston side.
Preferably, the inwall of described airtight cavity is also provided with relative to described some pressure relief vent places the annular pressure relief groove matched with described circular groove, and described annular pressure relief groove is communicated with described pressure relief vent.
Relative to prior art, the technical solution of the utility model is by the through hole that cooperatively interacts and pressure relief vent, when not increasing component and the energy, utilize original structure and power, realize the accurate location to piston movement position, and transformation facilitates, is easy to realize, and reduces control difficulty, improves the running precision of Stirling circulator.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the piston structure schematic diagram of the utility model embodiment;
Fig. 3 is the airtight cavity structural representation of the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.
Below with reference to accompanying drawing, concrete explaination is done to embodiment of the present utility model.
The piston position structure of a kind of Stirling circulator of embodiment of the present utility model as shown in Figure 1, Stirling circulator comprises airtight cavity 1 and piston 2.Piston 2 is located in airtight cavity 1, and can along to-and-fro motion in airtight cavity 1.Be provided with some through holes 5 be communicated with between the end face 3 of one end of piston 2 and the side 4 coordinated with airtight cavity 1 inwall, airtight cavity 1 inwall is provided with the some pressure relief vents 6 matched with some through holes 5.
As shown in fig. 1, in embodiment of the present utility model, the inwall Spielpassung of piston 2 and airtight cavity 1.Pressure gas body 11 is provided with in airtight cavity 1, one end of piston 2 is located in pressure gas body, the other end of piston 2 is connected with elastic element or electromagnetic mechanism, piston 2 to-and-fro motion under the pressure of pressure gas body 11 internal pressure gas and the interaction of the elastic force of elastic element or the magnetic force of electromagnetic mechanism.
When piston 2 moves to required position location, what piston 2 through hole 5 was positioned at that one end of piston 2 side matches with pressure relief vent 6 is in same position, thus the pressure gas body 11 containing pressed gas of airtight cavity 1 is communicated by through hole 5 and pressure relief vent 6 with the outside that pressure relief vent 6 is communicated with, the pressed gas of pressure gas body 11 is discharged, reduce the pressure of piston 2 one end, thus the be stressed motion of gas of piston 2 is slowed down, and under the effect of elastic element, stop gradually and return motion.
Embodiment of the present utility model is by the through hole that cooperatively interacts and pressure relief vent, when not increasing component and the energy, utilize original structure and power, realize the accurate location to piston movement position, and transformation facilitates, is easy to realize, reduce control difficulty, improve the running precision of Stirling circulator.
As shown in Figure 2, in embodiment of the present utility model, the through hole 5 on piston 2 comprises the pressure-bearing portion in piston 2 of being located at 7 and unloads splenium 8.The one end in pressure-bearing portion 7 is located on the end face 3 of one end of piston 2, and the one end of unloading splenium 8 is located on the side 4 of piston 2.Pressure-bearing portion 7 the other end is located in piston with the other end unloading splenium 8, and communicates.The bearing of trend in preferred pressure-bearing portion 7 is identical with the vibration-direction of piston 2, and the bearing of trend unloading splenium 8 is vertical with the bearing of trend in pressure-bearing portion 7, thus reduces through hole 5 to the impact of piston 2 movement locus as far as possible.
The other end that pressure-bearing portion 7 is located in piston 2 is also provided with buffer part, between one end that the other end unloading splenium 8 is located at pressure-bearing portion 7 and the buffer part of the other end, utilizes the impact of buffer part reduction on piston 2 pressure.
Separately as shown in Figure 2, in embodiment of the present utility model, the end face 3 of one end of piston 2 is also provided with the first pressure spot and the second pressure spot, when the pressure of the pressure gas body 11 internal pressure gas of airtight cavity 1 acts on the end face 3 of piston 2 one end, the pressure of the first pressure spot is greater than the pressure of the second pressure spot, and the second pressure spot place of piston one end end face is located in the one end in through hole pressure-bearing portion 7.And preferably the sectional shape of the end face 3 of piston 2 one end is curved, the edge of piston 2 one end end face 3 is located in the one end in through hole pressure-bearing portion 7, thus reduces impact.
The side 4 of piston 2 is also provided with circular groove relative to some through hole 7 places, and circular groove is communicated with one end that some through holes 7 are positioned at piston 2 side.
As shown in Figure 3, in embodiment of the present utility model, the inwall of airtight cavity 1 is also provided with relative to some pressure relief vent 6 places the annular pressure relief groove matched with circular groove, and annular pressure relief groove 9 is communicated with pressure relief vent 6, thus improves locating effect.
In embodiment of the present utility model, the through holes of preferred two rows on the side of piston, and preferably airtight cavity inwall is provided with the pressure relief vent of two rows, preferably the spacing of two row's pressure relief vents are more than or equal to the spacing of two exhausting holes further.When reciprocating motion of the pistons, the first row through hole in two exhausting holes moves to centre from the side of two row's pressure relief vents, and the second row through hole in two exhausting holes moves to opposite side from the centre of two row's pressure relief vents, thus improves locating effect.
In addition, in embodiment of the present utility model, one end of preferably some through holes is uniformly distributed on the side of piston.And be preferably also provided with the pore of some equally distributed connection piston one end end faces and side, to improve operational efficiency and the effect of piston.
Be described in detail specific embodiment of the utility model above, but it is as example, the utility model is not restricted to specific embodiment described above.To those skilled in the art, any equivalent modifications that this practicality is carried out and substituting also all among category of the present utility model.Therefore, not departing from the equalization conversion and amendment done under spirit and scope of the present utility model, all should be encompassed in scope of the present utility model.
Claims (10)
1. the piston position structure of a Stirling circulator, described Stirling circulator comprises airtight cavity and piston, described piston is located in described airtight cavity, and can along to-and-fro motion in described airtight cavity, it is characterized in that, be provided with some through holes between the end face of one end of described piston and the side coordinated with described airtight cavity inwall, described airtight cavity inwall is provided with the some pressure relief vents matched with described some through holes.
2. the piston position structure of Stirling circulator as claimed in claim 1, is characterized in that, when described piston movement is to required position location, what described piston hole was positioned at that one end of piston side matches with described pressure relief vent is in same position.
3. the piston position structure of Stirling circulator as claimed in claim 2, it is characterized in that, the inwall Spielpassung of described piston and described airtight cavity, pressure gas body is provided with in described airtight cavity, one end of described piston is located in described pressure gas body, the other end of described piston is connected with elastic element or electromagnetic mechanism, the to-and-fro motion under the pressure of described pressure gas body internal pressure gas and the interaction of the elastic force of elastic element or the magnetic force of electromagnetic mechanism of described piston.
4. the piston position structure of Stirling circulator as claimed in claim 3, it is characterized in that, through hole on described piston comprises to be located at pressure-bearing portion in described piston and to unload splenium, the one end in described pressure-bearing portion is located on the end face of one end of described piston, described one end of unloading splenium is located on the side of described piston, the described pressure-bearing portion the other end and the described the other end unloading splenium are located in described piston, and communicate.
5. the piston position structure of Stirling circulator as claimed in claim 4, it is characterized in that, the bearing of trend in the pressure-bearing portion of described through hole is identical with the vibration-direction of described piston, described in unload the bearing of trend of splenium vertical with the bearing of trend in described pressure-bearing portion.
6. the piston position structure of Stirling circulator as claimed in claim 5, it is characterized in that, the other end that described pressure-bearing portion is located in described piston is also provided with buffer part, described in unload splenium the other end one end of being located at described pressure-bearing portion and the buffer part of the other end between.
7. the piston position structure of Stirling circulator as claimed in claim 6, it is characterized in that, the end face of one end of described piston is also provided with the first pressure spot and the second pressure spot, when the pressure of the pressure gas body internal pressure gas of described airtight cavity acts on the end face of described piston one end, the pressure of described first pressure spot is greater than the pressure of described second pressure spot, and the second pressure spot place of described piston one end end face is located in the one end in described through hole pressure-bearing portion.
8. the piston position structure of Stirling circulator as claimed in claim 7, it is characterized in that, the sectional shape of the end face of described piston one end is curved, and the edge of piston one end end face is located in the one end in described through hole pressure-bearing portion.
9. the piston position structure of Stirling circulator as claimed in claim 8, is characterized in that, the side of described piston is also provided with circular groove relative to described some through holes, and described circular groove is communicated with one end that described some through holes are positioned at piston side.
10. the piston position structure of Stirling circulator as claimed in claim 9, it is characterized in that, the inwall of described airtight cavity is also provided with relative to described some pressure relief vent places the annular pressure relief groove matched with described circular groove, and described annular pressure relief groove is communicated with described pressure relief vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420459373.0U CN204024852U (en) | 2014-08-14 | 2014-08-14 | A kind of piston position structure of Stirling circulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420459373.0U CN204024852U (en) | 2014-08-14 | 2014-08-14 | A kind of piston position structure of Stirling circulator |
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| Publication Number | Publication Date |
|---|---|
| CN204024852U true CN204024852U (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420459373.0U Withdrawn - After Issue CN204024852U (en) | 2014-08-14 | 2014-08-14 | A kind of piston position structure of Stirling circulator |
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| CN (1) | CN204024852U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179594A (en) * | 2014-08-14 | 2014-12-03 | 宁波华斯特林电机制造有限公司 | Piston positioning structure of Stirling cycle machine |
-
2014
- 2014-08-14 CN CN201420459373.0U patent/CN204024852U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179594A (en) * | 2014-08-14 | 2014-12-03 | 宁波华斯特林电机制造有限公司 | Piston positioning structure of Stirling cycle machine |
| CN104179594B (en) * | 2014-08-14 | 2016-06-15 | 宁波华斯特林电机制造有限公司 | A kind of piston location structure of Stirling circulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141217 Effective date of abandoning: 20160615 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |