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CN-122015309-A - Refrigerating machine

CN122015309ACN 122015309 ACN122015309 ACN 122015309ACN-122015309-A

Abstract

The embodiment of the application provides a refrigerator, and relates to the technical field of refrigeration. The refrigerator includes casing subassembly, compression piston, expansion piston and cooler, and compression piston and expansion piston all locate in the casing subassembly, and the casing subassembly is equipped with first cavity, and first cavity is located between compression piston and the expansion piston, and the cooler is located first cavity. The application is used for improving the refrigerating efficiency of the refrigerator.

Inventors

  • SUN CHAO
  • ZHANG QIGONG

Assignees

  • 杭州海康微影传感科技有限公司

Dates

Publication Date
20260512
Application Date
20260331

Claims (14)

  1. 1. The refrigerator is characterized by comprising a shell component, a compression piston, an expansion piston and a cooler, wherein the compression piston and the expansion piston are both arranged in the shell component, the shell component is provided with a first cavity, the first cavity is positioned between the compression piston and the expansion piston, and the cooler is arranged in the first cavity.
  2. 2. The refrigerator of claim 1, wherein the housing assembly comprises a compressor housing assembly and an expander housing assembly, the compression piston being disposed within the compressor housing assembly, the expansion piston being disposed within the expander housing assembly, the first cavity being a chamber within the compressor housing assembly and/or a chamber within the expander housing assembly.
  3. 3. The chiller of claim 1, wherein the housing assembly comprises a compressor housing assembly comprising a compression chamber in communication with the expander housing assembly, the first chamber comprising the compression chamber, at least a portion of the cooler being disposed within the compression chamber.
  4. 4. A refrigerator according to claim 3, wherein the cooler is provided in the compression chamber, the compression chamber including a first wall surface of the compression piston facing the compression chamber, a second wall surface opposite to the first wall surface, and a first peripheral wall provided to the first wall surface and the second wall surface; at least part of the cooler is arranged on the first peripheral wall, and/or at least part of the cooler is arranged on the second wall surface, and/or at least part of the cooler is arranged on the first wall surface.
  5. 5. The chiller of claim 3 wherein the expander housing assembly includes a transition chamber in communication with the compression chamber, the first chamber further including the transition chamber, the chiller including a first cooling unit disposed within the compression chamber and a second cooling unit disposed within the transition chamber.
  6. 6. The refrigerator of claim 5, wherein the compression chamber comprises a first wall surface of the compression piston facing the compression chamber, a second wall surface opposite to the first wall surface, and a first peripheral wall provided on the first wall surface and the second wall surface, at least part of the first cooling unit is provided on the first peripheral wall, and/or at least part of the first cooling unit is provided on the second wall surface, and/or at least part of the first cooling unit is provided on the first wall surface.
  7. 7. The refrigerator of claim 5, wherein the transition chamber includes a third wall surface of the expansion piston facing the transition chamber, a fourth wall surface opposite the third wall surface, and a second peripheral wall provided to the third wall surface and the fourth wall surface; The second cooling unit is at least partially arranged on the second peripheral wall, and/or the second cooling unit is at least partially arranged on the fourth wall surface, and/or the second cooling unit is at least partially arranged on the third wall surface.
  8. 8. The chiller of claim 1, wherein the housing assembly comprises an expansion housing assembly comprising a transition chamber and an expansion chamber, the transition chamber in communication with the compressor housing assembly, the expansion chamber and the transition chamber disposed on either side of the expansion piston, the expansion piston being provided with a communication flow path and a regenerator, the communication flow path communicating the transition chamber and the expansion chamber, the first chamber comprising the transition chamber, the cooler disposed within the transition chamber.
  9. 9. The chiller according to claim 1 wherein the housing assembly comprises a compressor housing assembly and an expander housing assembly, the housing assembly further having a communication passage, the communication passage communicating between the compressor housing assembly and the expander housing assembly, the first cavity comprising the communication passage, the chiller being disposed in the communication passage.
  10. 10. The refrigerator of any one of claims 1 to 9, wherein the wall surface of the first chamber includes a portion of the housing assembly, the cooler is provided on an inner wall surface of the portion, and a surface of the portion of the housing assembly facing away from the cooler is provided with a heat radiation structure.
  11. 11. The chiller of claim 10, wherein the heat dissipating structure comprises a heat dissipating fin.
  12. 12. The chiller according to any of claims 1-9 wherein the wall of the first cavity comprises a portion of the housing assembly, the portion being provided with an opening, the cooler being disposed within the opening, a surface of the cooler facing the first cavity forming the wall of the first cavity.
  13. 13. The chiller of any of claims 1-9, wherein the chiller comprises a thermoelectric chiller with a cold side of the thermoelectric chiller facing the first cavity.
  14. 14. The refrigerator of any one of claims 1-9, further comprising a temperature sensor for detecting a temperature of the working medium in the first chamber and a controller connected to the temperature sensor and the cooler for controlling and adjusting the power of the cooler based on the temperature of the working medium detected by the temperature sensor.

Description

Refrigerating machine Technical Field The application relates to the technical field of refrigeration, in particular to a refrigerator. Background A refrigerator is a device for cooling a device. In the prior art, a refrigerating machine generally compresses a working medium through a compression piston and expands the working medium through an expansion piston, so that heat transfer of the working medium in a circulating process is realized, and cooling of equipment is realized. However, in the process of performing a refrigeration cycle through the compression piston and the expansion piston, the refrigerator still has a problem of low efficiency, thereby affecting the cooling effect of the device and the energy utilization efficiency of the refrigerator. Disclosure of Invention The application provides a refrigerator, which is used for improving the refrigerating efficiency of the refrigerator and comprises a shell component, a compression piston, an expansion piston and a cooler, wherein the compression piston and the expansion piston are arranged in the shell component, the shell component is provided with a first cavity, the first cavity is positioned between the compression piston and the expansion piston, and the cooler is arranged in the first cavity. According to the refrigerator provided by the first aspect, the first cavity of the refrigerator is located between the compression piston and the expansion piston, the compression piston can raise the temperature of the working medium in the first cavity in the process of compressing the working medium, and the cooler located in the first cavity can cool the working medium in the first cavity, so that the temperature of the working medium in the first cavity is reduced, the temperature rise influence caused by the compression of the working medium by the compression piston is reduced, and the temperature rise of the working medium in the first cavity is avoided. Like this, can weaken the adverse effect to the internal cooling effect of expansion cavity when higher temperature working medium in the first cavity flows to the expansion cavity through the intercommunication runner to be favorable to maintaining lower temperature in the expansion cavity, improve the cooling effect of expansion cavity, and then promote the refrigeration efficiency of refrigerator. In addition, due to the arrangement of the cooler, even if the compression piston has a smaller influence on the working medium in the first cavity, the cooler can also reduce the temperature of the working medium entering the expansion piston by reducing the temperature of the first cavity. With reference to the first implementation manner of the first aspect, the casing assembly includes a compressor casing assembly and an expander casing assembly, the compression piston is disposed in the compressor casing assembly, the expansion piston is disposed in the expander casing assembly, and the first cavity is a chamber in the compressor casing assembly and/or a chamber in the expander casing assembly. According to the first implementation manner, the first cavity can be arranged in the compressor shell assembly, the first cavity can also be arranged in the expansion shell assembly and can also be respectively arranged in the compressor shell assembly and the expansion shell assembly, so that the setting position of the first cavity is more flexible, and the corresponding forming mode can be selected according to the specific arrangement condition of the compressor and the expansion machine in the refrigerator, thereby being beneficial to adapting to different structural design requirements of the refrigerator. In addition, the first cavity is formed by reforming the existing compressor shell component and/or the existing expander shell component of the refrigerator, and the first cavity can be more structurally close to the compressor or the expander, so that the integrated arrangement of related components and the miniaturization of the refrigerator are facilitated, and the complexity of the whole structure of the refrigerator is reduced. With reference to the second implementation manner of the first aspect, the casing assembly includes a compressor casing assembly including a compression chamber, the compression chamber is in communication with the expander casing assembly, the first chamber includes a compression chamber, and at least a portion of the cooler is disposed in the compression chamber. According to the second implementation mode, when the cooler is arranged in the compression cavity, the compression piston compresses the working medium, and the compression heat generated in the compression cavity by the working medium can be taken away by the cooler more quickly, so that the temperature of the working medium in the compression cavity is reduced, and the temperature rise influence caused by the compression of the working medium by the compression piston is reduced. With reference to