CN218495394U - Cold volume distribution structure spare and stirling refrigerator - Google Patents
Cold volume distribution structure spare and stirling refrigerator Download PDFInfo
- Publication number
- CN218495394U CN218495394U CN202222482020.XU CN202222482020U CN218495394U CN 218495394 U CN218495394 U CN 218495394U CN 202222482020 U CN202222482020 U CN 202222482020U CN 218495394 U CN218495394 U CN 218495394U
- Authority
- CN
- China
- Prior art keywords
- cold
- temperature
- distribution structure
- guide piece
- deformable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The application relates to the technical field of low-temperature refrigeration, and discloses a cold quantity distribution structural part. The cold distribution structure comprises: the first end face of each cold guide piece is used for being connected with a cold source, the second end face of each cold guide piece is used for being connected with a cooled object, and the cold guide pieces correspond to the cooled object one to one; the cold guide piece can be disconnected with the cold source under the condition that the current temperature of the cold guide piece is less than or equal to the target temperature; the cold guide piece is connected with the cold source under the condition that the current temperature of the cold guide piece is higher than the target temperature; each cold-conducting piece corresponds to a target temperature. The cold quantity distribution structural member can simplify the control logic and realize cold quantity distribution with lower cost. The present application further discloses a stirling cooler.
Description
Technical Field
The application relates to the technical field of low-temperature refrigeration, for example to a cold quantity distribution structural part and a Stirling refrigerator.
Background
The Stirling refrigerator is a mechanical refrigerator driven by electric power, has the advantages of simple structure, reliable operation, long service life, no oil, low noise, difficult abrasion, convenient adjustment of refrigerating capacity and the like, and is widely applied to the field of low-temperature refrigeration. The stirling cooler has a cold-end heat exchanger (i.e., cold head) that provides cooling energy to one or more cooled objects to reduce the temperature of the cooled objects. The cold quantity provided by the cold head is concentrated, and the cold quantity needs to be accurately and effectively distributed to the cooled object.
In the related art, the cooling distribution is controlled by measuring the temperature of the object to be cooled and depending on the temperature of the object to be cooled. For example, the cold head provides cold energy for four cooled objects, the current temperatures of the four cooled objects need to be measured respectively, if the current temperature of the cooled object is higher than the target temperature, the stirling cooler is controlled to be started to cool the cooled object, and if the current temperature of the cooled object is lower than the target temperature, the cooler is controlled to be stopped.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
the refrigeration capacity distribution method provided by the related technology has complex control logic, generally needs to be provided with a PID (proportion integration differentiation) controller to realize control, and has higher cost.
SUMMERY OF THE UTILITY MODEL
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended to be a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a cold quantity distribution structural member and a Stirling refrigerator, which can simplify control logic and realize cold quantity distribution at a lower cost.
In some embodiments, the refrigeration distribution structure comprises: the first end face of each cold guide piece is used for being connected with a cold source, the second end face of each cold guide piece is used for being connected with a cooled object, and the cold guide pieces correspond to the cooled object one to one; the cold guide piece can be disconnected with the cold source under the condition that the current temperature of the cold guide piece is less than or equal to the target temperature; the cold guide piece is connected with the cold source under the condition that the current temperature of the cold guide piece is higher than the target temperature; each cold conduction piece corresponds to a target temperature.
The cold volume distribution structure spare that this disclosed embodiment provided can realize following technological effect:
the cold distribution structure provided by the embodiment of the disclosure comprises one or more cold conducting pieces, wherein the first end surface of each cold conducting piece is used for being connected with a cold source, and the second end surface of each cold conducting piece is used for being connected with a cooled object, so that the cold is conducted to the corresponding cooled object from the cold source. When the current temperature of the cold guide piece is less than or equal to the target temperature, the cold guide piece is automatically disconnected with the cold source, so that the temperature of the corresponding cooled object is prevented from being further reduced; and under the condition that the current temperature of the cold guide piece is higher than the target temperature, the cold guide piece is automatically connected with the cold source to provide cold for the corresponding cooled object. Therefore, the cold conduction pieces are not interfered with each other, and the cooled object is enabled to maintain the target temperature all the time through connection or disconnection of the cold conduction pieces and the cold source. Therefore, the refrigeration capacity distribution structural component provided by the embodiment of the disclosure simplifies the control logic and can realize refrigeration capacity distribution at lower cost.
Optionally, the cold guide comprises: the first end face of the connecting part is connected with the cold source; and one or more deformable portions, a first end of each deformable portion being fixedly connected to the second end face of the connecting portion, and a second end of each deformable portion being adapted to be fixedly connected to the object to be cooled; when the current temperature is lower than or equal to the target temperature, the deformable part shortens to drive the connecting part to be disconnected with the cold source; under the condition that the current temperature is higher than the target temperature, the deformable part stretches to drive the connecting part to be connected with the cold source.
Optionally, the deformable portion is a shape memory alloy.
Optionally, the deformable portion is made of copper-aluminum alloy or zinc-aluminum alloy; and/or the shape of the deformable portion comprises a V-shape or a spring shape.
Optionally, the refrigeration distribution structure further comprises: and the heat insulation layer is arranged on the peripheral surface of each cold guide piece or the peripheral surfaces of the plurality of cold guide pieces.
Optionally, a pattern formed by splicing the connecting parts of the plurality of cold conducting pieces is matched with the cold source.
Optionally, the first end of each deformable portion is weld-connected with the second end face of the corresponding connecting portion; and/or the second end of each deformable part is used for welding connection with the corresponding cooled object.
Optionally, the cold guide further comprises: and one side of the temperature equalizing plate is fixedly connected with the second end of the deformable part, and the other side of the temperature equalizing plate is used for being connected with the cooled object.
In some embodiments, the stirling cooler comprises: the cold head is used as a cold source; and the cold quantity distribution structural part is arranged at the cold quantity output end of the cold head.
Optionally, the stirling cooler further comprises: the shell is provided with a back pressure cavity, a compression cavity and an expansion cavity which are connected in sequence; the compressor is arranged in the back pressure cavity and is used for compressing the gas in the compression cavity; the hot end heat exchanger is sleeved outside the shell and corresponds to the position of the compression cavity; a regenerator, a first end in communication with the compression chamber and a second end in communication with the expansion chamber; an ejector provided in the expansion chamber and capable of reciprocating in an axial direction of the ejector; the cold end heat exchanger is connected with one end of the expansion cavity far away from the compression cavity; wherein the cold side heat exchanger is the cold side.
The Stirling refrigerator provided by the embodiment of the disclosure can realize the following technical effects:
the Stirling refrigerator provided by the embodiment of the disclosure comprises a cold quantity distribution structural part, wherein the cold quantity distribution structural part comprises one or more cold conducting parts, the first end surface of each cold conducting part is connected with a cold source, and the second end surface of each cold conducting part is used for being connected with a cooled object, so that cold quantity is conducted to the corresponding cooled object from the cold source. When the current temperature of the cold conduction piece is less than or equal to the target temperature, the cold conduction piece is automatically disconnected with the cold source; and under the condition that the current temperature of the cold guide piece is higher than the target temperature, the cold guide piece is automatically connected with the cold source. Therefore, the plurality of cold conduction pieces are not interfered with each other, and the cooled object is enabled to maintain the target temperature all the time through connection or disconnection between the cold conduction pieces and the cold source. Therefore, the Stirling refrigerator provided by the embodiment of the disclosure simplifies the control logic of cold distribution, and can realize cold distribution at lower cost.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated in the accompanying drawings, which correspond to the accompanying drawings and not in a limiting sense, in which elements having the same reference numeral designations represent like elements, and in which:
fig. 1 is a schematic view of a connection mode of a cold distribution structural member provided by the embodiment of the disclosure;
fig. 2 is a schematic structural view of a refrigeration distribution structure provided by an embodiment of the disclosure;
FIG. 3 is a schematic view of the shortening and lengthening of a deformable portion provided by embodiments of the present disclosure;
FIG. 4 is a schematic view of a Stirling cooler according to an embodiment of the present disclosure;
fig. 5 is a cross-sectional view of a stirling cooler provided in accordance with an embodiment of the present disclosure.
Reference numerals:
1. a cold conducting piece; 11. a connecting portion; 12. a deformable portion; 13. a temperature equalizing plate;
2. a housing; 21. a back pressure chamber; 22. a compression chamber; 23. an expansion chamber;
3. a compressor;
4. a hot end heat exchanger;
5. a heat regenerator;
6. an ejector;
7. and a cold end heat exchanger.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged as appropriate for the embodiments of the disclosure described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
In the embodiments of the present disclosure, terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.
In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.
The term "plurality" means two or more unless otherwise specified.
In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.
The Stirling refrigerator is a mechanical refrigerator driven by electric power, has the advantages of simple structure, reliable operation, long service life, no oil, low noise, difficult abrasion, convenient adjustment of refrigerating capacity and the like, and is widely applied to the field of low-temperature refrigeration. The stirling cooler has a cold end heat exchanger (i.e., cold head) that provides cooling energy to one or more cooled objects to reduce the temperature of the cooled objects. The cold quantity provided by the cold head is concentrated, and the cold quantity needs to be accurately and effectively distributed to the cooled object.
In the related art, the cooling distribution is controlled by measuring the temperature of the object to be cooled and depending on the temperature of the object to be cooled. For example, the cold head provides cold energy for four cooled objects, the current temperatures of the four cooled objects need to be measured respectively, if the current temperature of the cooled object is higher than the target temperature, the stirling cryocooler is controlled to be started to cool the cooled object, and if the current temperature of the cooled object is lower than the target temperature, the cryocooler is controlled to be stopped. However, the refrigeration capacity distribution method provided in the related art has complicated control logic, generally requires a PID controller to implement control, and is relatively high in cost.
Therefore, the embodiment of the disclosure provides a cold distribution structural member and a stirling refrigerator, which can simplify control logic and realize cold distribution at a lower cost.
In one aspect, embodiments of the present disclosure provide a cold distribution structure.
With reference to fig. 1, the refrigeration distribution structure comprises one or more cold conductors 1.
The first end face of each cold conducting piece 1 is used for being connected with a cold source, the second end face of each cold conducting piece 1 is used for being connected with a cooled object, and the cold conducting pieces 1 correspond to the cooled object one to one. The cold guide piece 1 can be disconnected with the cold source under the condition that the current temperature is less than or equal to the target temperature; and when the current temperature is higher than the target temperature, the cold source is connected. Each cold conductor 1 corresponds to a target temperature, which may be-30 ℃, for example.
The cold distribution structure provided by the embodiment of the disclosure comprises one or more cold conduction pieces 1, wherein a first end surface of each cold conduction piece 1 is used for being connected with a cold source, and a second end surface of each cold conduction piece 1 is used for being connected with a cooled object, so that cold is conducted to the corresponding cooled object from the cold source. When the current temperature of the cold conduction piece 1 is less than or equal to the target temperature, the cold conduction piece 1 is automatically disconnected from the cold source; and under the condition that the current temperature of the cold guide piece 1 is higher than the target temperature, the cold guide piece 1 is automatically connected with the cold source. In this way, the plurality of cooling conductors 1 do not interfere with each other, and each object to be cooled is always maintained at its own target temperature by connecting or disconnecting the cooling conductors 1 to or from the cold source. Therefore, the cold distribution structural part provided by the embodiment of the disclosure simplifies the control logic and can realize cold distribution at lower cost.
It is understood that the current temperature of the cold lead member 1 may reflect the current temperature of the cooled object. Under the condition that the current temperature of the cold conduction piece 1 is less than or equal to the target temperature, the cooled object reaches the required low temperature, the cold conduction piece 1 is disconnected with the cold source, and the cooled object is prevented from being further cooled. After the cold guide 1 is disconnected from the cold source, the temperature of the object to be cooled gradually rises, and the temperature of the cold guide 1 connected to the object to be cooled gradually rises. When the temperature of the cold conducting piece 1 is higher than the target temperature, that is, the temperature of the cooled object is too high, the cold conducting piece 1 and the cold source are reestablished to be connected, so that cold energy is provided for the cooled object.
It is assumed that the cold guide 1 is disconnected from the cooled object when the current temperature is less than or equal to the target temperature, that is, the cold guide 1 is always connected to the cold source. In this way, the cooling member 1 is always kept at a low temperature, and the cooling member 1 cannot function.
Optionally, referring to fig. 2, the cold lead 1 comprises a connection portion 11 and one or more deformable portions 12.
The first end face of the connection part 11 is used for connecting with a cold source. A first end of each deformable portion 12 is fixedly connected to a second end face of the connecting portion 11, and a second end of each deformable portion 12 is used for fixedly connecting to an object to be cooled. Wherein, referring to fig. 3, when the current temperature is less than or equal to the target temperature, the deformable portion 12 shortens to connect the connecting portion 11 with the cold source; under the condition that the current temperature is higher than the target temperature, the deformable part 12 extends to drive the connecting part 11 to be connected with the cold source.
Because the first end face of the connecting portion 11 is used for being connected with a cold source, the first end of each deformable portion 12 is fixedly connected with the second end face of the connecting portion 11, and the second end of each deformable portion 12 is used for being fixedly connected with a cooled object, the connection portion 11 can be driven to move by the expansion and contraction of each deformable portion 12. That is, the extension and contraction of the deformable portion 12 can connect or disconnect the connection portion 11 with the cold source. When the current temperature is lower than or equal to the target temperature, the deformable part 12 is shortened to drive the connecting part 11 to be disconnected with the cold source; in case that the current temperature is higher than the target temperature, the deformable part 12 extends to drive the connection part 11 to connect with the cold source. With such an arrangement, the plurality of cooled objects can be maintained at their respective target temperatures without requiring a complicated control logic, and the control logic is simplified.
Optionally, the first end face of the connection portion 11 is used for contacting and connecting with the cold source. So set up, be convenient for the first terminal surface of connecting portion 11 and cold source be connected or disconnection.
It is understood that, referring to fig. 3, for any one of the cold guides 1, the connection position of the deformable portion 12 and the connection portion 11 is point a, and the connection position of the deformable portion 12 and the cooled object is point b. The distance between the point a and the point b is L under the condition that the current temperature is less than or equal to the target temperature 1 . Under the condition that the current temperature is higher than the target temperature, the distance between the point a and the point b is L 2 . Wherein L is 1 ＜L 2 。
When the current temperature is lower than or equal to the target temperature, the deformable portion 12 is shortened to drive the connecting portion 11 to be disconnected from the cold source, that is, when the current temperature is lower than or equal to the target temperature, the deformable portion 12 is shortened to drive the connecting portion 11 to move in a direction away from the cold source. At this time, a certain distance exists between the second end surface of the connecting portion 11 and the cold source, and the cold conduction effect is poor.
Optionally, the deformable portion 12 is a shape memory alloy. In this manner, the deformable portion 12 is facilitated to elongate or contract under the effect of temperature. Among them, the shape memory alloy generally refers to a special metal material having a shape memory effect. The shape memory alloy deforms when the temperature is lower than the preset temperature, and the deformation of the shape memory alloy at the lower temperature can be completely eliminated after the temperature reaches the preset temperature, so that the original shape is recovered. Here, the preset temperature refers to a node temperature at which the shape memory alloy deforms, matching the target temperature described above.
Optionally, the deformable portion 12 comprises copper-aluminum alloy or zinc-aluminum alloy. The copper-aluminum alloy or the zinc-aluminum alloy is a shape memory alloy, and the copper-aluminum alloy or the zinc-aluminum alloy is adopted to facilitate the extension or the shortening of the deformable part 12 under the action of temperature. In addition, the copper-aluminum alloy and the zinc-aluminum alloy have the advantages of easy acquisition, convenient processing and manufacturing, and the like.
Alternatively, the shape of the deformable portion 12 includes a V-shape or a spring shape. By providing the shape of the deformable portion 12 in a V-shape or a spring shape, the deformable portion 12 can be extended or shortened relatively easily by the temperature.
Alternatively, when the shape of the deformable portion 12 is a V-shape, the deformable portion 12 includes a first extending portion and a second extending portion. A first end of the first extension portion is fixedly connected with the second end face of the connecting portion 11, a second end of the first extension portion is fixedly connected with a first end of the second extension portion, and a second end of the second extension portion is used for being fixedly connected with the object to be cooled. Wherein, the first extension part and the second extension part are arranged at a preset angle.
Therefore, the preset angles of the first extending part and the second extending part can be flexibly adjusted according to the use requirement, so that the deformable part 12 can be conveniently lengthened or shortened by the required length under the action of the temperature.
Optionally, the cold distribution structure further comprises an insulating layer. The heat insulating layer is provided on the peripheral surface of each of the cooling ducts 1, or on the peripheral surfaces of the plurality of cooling ducts 1. So set up, can improve the thermal insulation performance of leading cold spare 1, prevent that cold volume from revealing and losing. In addition, through set up the heat insulation layer at every peripheral face of leading cold spare 1, can avoid leading and disturb each other between the cold spare 1, be favorable to improving temperature control's accuracy.
Optionally, the insulation layer comprises a vacuum insulation panel. The heat conductivity coefficient of the vacuum heat-insulating plate is small, and a good heat-insulating effect can be realized only by the vacuum heat-insulating plate with a small thickness.
Optionally, the pattern formed by splicing the connecting parts 11 of the plurality of cold conductors 1 is matched with the cold source. So set up, can make full use of cold source, guarantee the effect of cold volume conduction. Wherein, matching refers to matching of size and shape.
For example, referring to fig. 4, the cold distribution structure comprises 4 cold conduction members 1, the connection part 11 of each cold conduction member 1 is fan-shaped, and the connection parts 11 of the 4 cold conduction members 1 are spliced into a circular shape. The size and shape of the round end face are the same as those of the cold source. So set up, can make full use of cold source, guarantee the effect of cold volume conduction.
Alternatively, the areas of the first end surfaces of the connecting portions 11 of the plurality of cold conductors 1 may be the same or different.
The larger the area of the first end surface of the connecting part 11 is, the larger the contact area between the connecting part 11 and the cold source is, and the better the effect of cold conduction is. In this way, the area of the first end surface of the connecting portion 11 of the cooling guide 1 can be flexibly adjusted according to the cooling capacity required by each object to be cooled, and the cooling capacity conducted to the object to be cooled can be reasonably distributed.
Alternatively, the first end of each deformable portion 12 is fixedly connected with the second end face of the corresponding connecting portion 11. For example, the first end of the deformable portion 12 and the second end of the corresponding connecting portion 11 may be fixedly connected by means of thermal conductive adhesive, welding, or fixing member.
With such an arrangement, the connecting portion 11 can be fixed at the first end of the corresponding deformable portion 12, so that the connecting portion 11 can be moved by the expansion and contraction of the deformable portion 12. Further, the conduction effect of coldness between the deformable portion 12 and the connection portion 11 is not affected.
Alternatively, the first end of each deformable portion 12 is weld-connected to the second end face of the corresponding connecting portion 11.
So set up, can make connecting portion 11 firmly be fixed in the first end of flexible portion 12, be convenient for utilize flexible portion 12's flexible drive connecting portion 11 to move. In addition, the welded connection has the advantages of low price, easy operation, no influence on the cold conduction at the welding position, and the like.
Alternatively, the second end of each deformable portion 12 is used for fixed connection with the corresponding cooled object. In practical applications, for example, the second end of the deformable portion 12 and the corresponding cooled object may be fixedly connected by means of thermal conductive glue, welding, or fixing member.
With this arrangement, the deformable portion 12 can be fixed to the corresponding object to be cooled. Further, the effect of conduction of cooling energy between the deformable portion 12 and the object to be cooled is not affected.
Alternatively, the second end of each deformable portion 12 may be welded to the corresponding cooled object. So set up, can make flexible portion 12 firmly fix in the cold source. Furthermore, the welded connection has the advantages of low price, easy operation and no influence on the conduction of cold at the welding location.
Optionally, referring to fig. 2, the cold guide member 1 further includes a temperature equalization plate 13. One side of the temperature equalizing plate 13 is fixedly connected to the second end of the deformable portion 12, and the other side is used for being connected to the object to be cooled. In this way, the cooling energy can be more uniformly transmitted to the object to be cooled.
Of course, the structure corresponding to "13" shown in fig. 2 may also be regarded as a part of the wall surface of the cooled object, that is, in practical applications, the second end of the deformable portion 12 may be directly connected to the cooled object, or may be connected to the cooled object through the additional temperature equalization plate 13, without limitation.
In another aspect, embodiments of the present disclosure provide a stirling cooler.
With reference to fig. 4 and 5, the stirling cooler comprises a cold head and a cold distribution structure according to any one of the embodiments described above.
Wherein the cold head is used as a cold source. The cold quantity distribution structural part is arranged at the cold quantity output end of the cold head.
The Stirling refrigerator provided by the embodiment of the disclosure comprises a cold distribution structural part, wherein the cold distribution structural part comprises one or more cold guide parts 1, a first end surface of each cold guide part 1 is connected with a cold source, and a second end surface of each cold guide part 1 is connected with a cooled object, so that cold is transmitted to the corresponding cooled object from the cold source. When the current temperature of the cold conduction piece 1 is less than or equal to the target temperature, the cold conduction piece 1 is automatically disconnected from the cold source; and under the condition that the current temperature of the cold guide piece 1 is higher than the target temperature, the cold guide piece 1 is automatically connected with the cold source. Thus, the plurality of cold conduction pieces 1 do not interfere with each other, and the cooled object is always maintained at the target temperature by connecting or disconnecting the cold conduction pieces 1 with or from the cold source. Therefore, the Stirling refrigerator provided by the embodiment of the disclosure simplifies the control logic of cold distribution and can realize cold distribution at lower cost.
Optionally, the stirling coolant further comprises a fixing member for fixing the cold distribution structure to the cold output of the coldhead.
Through setting up the mounting, can support and lead cold part 1 and be connected or with cold source disconnection. For example, the fixing member is configured as a cylinder, the cylinder is sleeved on the cold head, and the temperature equalizing plate 13 is disposed in the cylinder and located at one end far away from the cold head. Wherein, the temperature equalizing plate 13 is fixedly connected with the inner wall of the cylinder. The deformable part 12 is disposed on one side of the temperature equalizing plate 13 facing the cold head, and can be extended to connect the connecting part 11 with the cold source or shortened to disconnect the connecting part 11 from the cold source. The side of the temperature equalizing plate 13 facing away from the cold head is used for connecting with the cooled object and providing a cold source for the cooled object.
Optionally, in conjunction with fig. 3 and 4, the stirling cooler further comprises a housing 2, a compressor 3, a hot side heat exchanger 4, a regenerator 5, an ejector 6 and a cold side heat exchanger 7.
The housing 2 is provided with a back pressure chamber 21, a compression chamber 22 and an expansion chamber 23 connected in this order.
The compressor 3 is disposed in the back pressure chamber 21 for compressing the gas in the compression chamber 22.
The hot end heat exchanger 4 is sleeved outside the shell 2 and corresponds to the position of the compression cavity 22.
A first end of regenerator 5 communicates with compression chamber 22 and a second end of regenerator 5 communicates with expansion chamber 23.
The ejector 6 is provided in the expansion chamber 23 and is reciprocable relative to the expansion chamber 23.
And the cold end heat exchanger 7 is connected with one end of the expansion cavity 23 far away from the compression cavity 22, wherein the cold end heat exchanger 7 is the cold head.
The working process of the Stirling refrigerator is as follows: the stirling refrigerator relies on motor drive's compressor 3 to make the working gas volume that is located initial condition in compression chamber 22 compressed, its temperature has the trend of rising when the gas is compressed, its temperature keeps unchanged after working gas dispels the heat through hot end heat exchanger 4, then, working gas flows through regenerator 5, it is exothermic at regenerator 5's first half section, absorb heat at regenerator 5's latter half section, moreover, working gas gets into expansion chamber 23 through regenerator 5, from cold junction heat exchanger 7 heat absorption volume expansion in expansion chamber 23, so reciprocating cycle, the temperature of cold junction heat exchanger 7 place one end constantly reduces, thereby realize the refrigeration function.
The above description and the drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. A refrigeration distribution structure, comprising:
the cooling device comprises one or more cooling guide pieces (1), wherein a first end face of each cooling guide piece (1) is used for being connected with a cold source, a second end face of each cooling guide piece (1) is used for being connected with a cooled object, and the cooling guide pieces (1) correspond to the cooled object one by one;
the cold guide piece (1) can be disconnected with the cold source under the condition that the current temperature of the cold guide piece (1) is less than or equal to the target temperature; the cold guide piece (1) is connected with the cold source under the condition that the current temperature is higher than the target temperature; each cold-conducting piece (1) corresponds to a target temperature.
2. Cold distribution structure according to claim 1, characterised in that the cold-conducting element (1) comprises:
a connecting part (11), wherein a first end face of the connecting part (11) is used for being connected with the cold source; and the combination of (a) and (b),
one or more deformable portions (12), a first end of each deformable portion (12) being fixedly connected to the second end face of the connecting portion (11), a second end of each deformable portion (12) being for fixed connection to the object to be cooled;
wherein, under the condition that the current temperature is less than or equal to the target temperature, the deformable part (12) is shortened to drive the connecting part (11) to be disconnected with the cold source; under the condition that the current temperature is higher than the target temperature, the deformable part (12) stretches to drive the connecting part (11) to be connected with the cold source.
3. Refrigeration distribution structure as claimed in claim 2,
the deformable portion (12) is a shape memory alloy.
4. Refrigeration distributing structure according to claim 2,
the deformable part (12) is made of copper-aluminum alloy or zinc-aluminum alloy; and/or the presence of a gas in the gas,
the shape of the deformable portion (12) includes a V-shape or a spring shape.
5. Cold distribution structure according to any one of claims 1-4, characterised in that the cold distribution structure further comprises:
and the heat insulation layer is arranged on the peripheral surface of each cold guide piece (1) or arranged on the peripheral surfaces of the plurality of cold guide pieces (1).
6. Cold distribution structure according to any one of claims 2 to 4,
the figure that connecting portion (11) amalgamation of a plurality of cold conduction spare (1) formed with the cold source phase-match.
7. Cold distribution structure according to any one of claims 2 to 4,
the first end of each deformable part (12) is in welded connection with the second end face of the corresponding connecting part (11); and/or the second end of each deformable part (12) is used for welding connection with the corresponding cooled object.
8. Refrigeration distribution structure according to any of claims 2 to 4, characterized in that the cold conductor (1) further comprises:
and a temperature equalizing plate (13) having one end fixedly connected to the second end of the deformable portion (12) and the other end connected to the object to be cooled.
9. A stirling cooler, comprising:
the cold head is used as a cold source; and (c) and (d),
cold distribution structure according to any of claims 1-8, arranged at the cold output of the cold head.
10. A stirling cooler in accordance with claim 9, further comprising:
a housing (2) provided with a back pressure chamber (21), a compression chamber (22) and an expansion chamber (23) which are connected in sequence;
a compressor (3) arranged in the back pressure chamber (21) and used for compressing the gas in the compression chamber (22);
the hot end heat exchanger (4) is sleeved outside the shell (2) and corresponds to the compression cavity (22);
a regenerator (5) having a first end in communication with the compression chamber (22) and a second end in communication with the expansion chamber (23);
an ejector (6) provided in the expansion chamber (23) and capable of reciprocating in the axial direction of the ejector (6);
the cold end heat exchanger (7) is connected with one end of the expansion cavity (23) far away from the compression cavity (22); wherein the cold end heat exchanger (7) is the cold head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222482020.XU CN218495394U (en) | 2022-09-19 | 2022-09-19 | Cold volume distribution structure spare and stirling refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222482020.XU CN218495394U (en) | 2022-09-19 | 2022-09-19 | Cold volume distribution structure spare and stirling refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218495394U true CN218495394U (en) | 2023-02-17 |
Family
ID=85191227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222482020.XU Active CN218495394U (en) | 2022-09-19 | 2022-09-19 | Cold volume distribution structure spare and stirling refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218495394U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116538719A (en) * | 2023-07-07 | 2023-08-04 | 苏州八匹马超导科技有限公司 | Thermal switch and ultra-low temperature system |
-
2022
- 2022-09-19 CN CN202222482020.XU patent/CN218495394U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116538719A (en) * | 2023-07-07 | 2023-08-04 | 苏州八匹马超导科技有限公司 | Thermal switch and ultra-low temperature system |
| CN116538719B (en) * | 2023-07-07 | 2023-09-08 | 苏州八匹马超导科技有限公司 | Thermal switch and ultra-low temperature system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6161389A (en) | Stirling machine with heat exchanger having fin structure | |
| CN218495394U (en) | Cold volume distribution structure spare and stirling refrigerator | |
| MX2014009514A (en) | Downhole logging tool cooling device. | |
| CN102299022A (en) | Mechanical heat switch for refrigerating machine to directly cool superconducting magnet | |
| CN103017394B (en) | Integrated tapered slit cold-end heat exchanger of linear pulse tube refrigerator and manufacturing method | |
| CN114136046A (en) | Vehicle-mounted efficient heat-insulation Stirling deep low-temperature refrigerator | |
| KR102022583B1 (en) | Temperature controll module and energy independent cooling water supply system including the same | |
| CN108870791A (en) | A kind of cooling system by contact using marmem | |
| CN205014669U (en) | Cold volume derivation system of stirling refrigerator | |
| CN109760857B (en) | Intelligent variable thermal conductivity structural plate suitable for spacecraft | |
| CN110336096A (en) | Batteries of electric automobile cooling system based on semiconductor heat power technology | |
| CN115101850A (en) | Intelligent adjusting battery bin of new energy automobile | |
| CN213399405U (en) | Temperature-controllable radiator | |
| CN108036576B (en) | Refrigerator cold-conducting device combined with pulsating heat pipe | |
| CN209857251U (en) | Air conditioning system and air conditioning apparatus | |
| CN216114771U (en) | Vehicle-mounted refrigerator and refrigeration module structure thereof | |
| CN220038835U (en) | Refrigerating apparatus | |
| CN205533576U (en) | Adiabatic type compresses tightly fixing device | |
| JP4000364B2 (en) | Energization system using pulse tube refrigerator | |
| CN218672462U (en) | Semiconductor refrigerating system | |
| CN218495393U (en) | Stirling refrigerator | |
| CN216850067U (en) | Thermal control structure of large capacity battery | |
| CN218829571U (en) | Stable pulse constant current power supply | |
| CN113531947B (en) | Pulse thermoelectric refrigeration supercooling maintaining device capable of recovering heat | |
| CN219016777U (en) | Refrigerating camera based on loop heat pipe heat dissipation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |