CN211702785U - Solid refrigerator based on ferroelectric negative electric card effect - Google Patents
Solid refrigerator based on ferroelectric negative electric card effect Download PDFInfo
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- CN211702785U CN211702785U CN201922392994.7U CN201922392994U CN211702785U CN 211702785 U CN211702785 U CN 211702785U CN 201922392994 U CN201922392994 U CN 201922392994U CN 211702785 U CN211702785 U CN 211702785U
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Abstract
The utility model discloses a solid refrigerator based on electricity card effect is negatively charged to ferroelectric belongs to the solid refrigeration field, solid refrigerator based on electricity card effect is negatively charged to the electricity include multilayer ferroelectric ceramic refrigeration medium, outer electric field device, mechanical handling system, ferroelectric refrigeration medium pass through mechanical handling system and need to refrigerate the object and the cooling system links to each other. An external electric field applying device is used for applying an electric field to the ceramic refrigerating medium, heat is absorbed from a refrigerated object by using a negative electricity card effect, and the refrigerating medium is connected with a heat dissipation system through a rear mechanical carrying system to release heat so as to realize refrigeration. The utility model discloses regard as the refrigerant with solid material, green, refrigeration efficiency is high.
Description
Technical Field
The utility model belongs to the solid refrigeration field, more specifically the utility model relates to a solid refrigerator based on ferroelectric negative electricity card effect that says so.
Background
With the development of microelectronic technology, the integration level of electronic devices is getting larger and larger, and electronic chips are in the development trend of miniaturization and high integration level. The high integration level makes the power consumption of the chip larger and larger, the electronic chip can generate a large amount of heat in the working process, and the heat accumulation can cause the thermal failure of the chip. Currently, of all failure cases of electronic devices, 55% are caused by thermal failure. Therefore, the refrigeration technology of the electronic chip is the guarantee for realizing the stable work of the electronic chip, and plays a key role in the miniaturization of the chip and the electronic equipment. In recent years, the thermal reliability design of electronic products is more and more emphasized in the domestic electronic industry, and especially in the industries of aviation, aerospace and the like, the requirements of higher refrigeration efficiency, wider refrigeration temperature range, smaller volume of a refrigerator and the like are provided for the thermal design of electronic components. Unfortunately, conventional heat dissipation techniques are accelerating to near their limits. Air-cooled heat sinks alone are still used in many heat dissipation applications, but are limited to low heat flux densities, and when the heat flux density of the device is high, the performance of the device is completely insufficient for heat dissipation. Ferroelectrics have an electrocaloric effect which makes them useful in refrigeration applications. The negative electricity card effect is a phenomenon that the temperature of a ferroelectric is reduced by applying an external electric field to the ferroelectric under the adiabatic condition, and the temperature can be reduced by utilizing the adiabatic depolarization of the ferroelectric so as to realize refrigeration. Compared with the traditional refrigeration technology, the electric card refrigeration has no mechanical part, low noise, long service life, high reliability and no refrigerant, so the electric card refrigeration has no pollution to the environment and is green and environment-friendly; the cold junction temperature can be adjusted by adjusting the input voltage, the starting is quick, the control is convenient and flexible, and the control precision is high. Electrical card cooling facilitates integration and the absence of moving parts, thus having the advantage of no alternatives in electronics cooling. Meanwhile, the ferroelectric is easy to prepare, has the characteristic of small volume, and can meet the size limit of electronic device packaging.
Disclosure of Invention
The utility model discloses a solve the problem that prior art exists at present, for this reason the utility model provides a it is low to have operating temperature, and temperature regulation is effectual, and life is longer, and no moving part, operating temperature range are wide, refrigeration efficiency is high, and stability and reliability are high based on the solid refrigeration ware of ferroelectric negative electricity card effect.
The solid refrigerator based on the electric negative electricity card effect comprises a ferroelectric ceramic refrigerating medium 1, an external electric field device 2 and a mechanical carrying system 3, wherein the ferroelectric ceramic refrigerating medium 1 is connected with an object to be refrigerated and a heat dissipation system through the mechanical carrying system 3, the mechanical carrying system 3 is composed of a guide rail and a motor, electrodes are embedded in the ferroelectric medium 1, and the external electric field device 2 is connected with the embedded electrodes.
Preferably, the ferroelectric ceramic refrigeration medium 1 has a single layer thickness of 0.05-100um and a total of 50-100 layers.
Preferably, the magnitude of the applied electric field of the external electric field device 2 is 100-.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, a ferroelectric ceramic refrigeration medium 1, an external electric field device 2, a mechanical carrying system 3, a refrigerated end 4 and a heat dissipation system 5.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
The utility model discloses a ferroelectric ceramic refrigeration medium 1, outer electric field device 2, mechanical handling system 3, by refrigeration end 4, cooling system 5, the solid refrigerator based on electricity negative electricity card effect include ferroelectric ceramic refrigeration medium 1, outer electric field device 2, mechanical handling system 3, ferroelectric refrigeration medium 1 link to each other with needs refrigeration object and cooling system through mechanical handling system 3, mechanical handling system 3 adopt guide rail and motor to constitute, ferroelectric medium 1 in bury the electrode, plus electric field device 2 links to each other with the electrode that buries.
The thickness of the single layer of the ferroelectric ceramic refrigerating medium 1 is 0.05-100um, and the ferroelectric ceramic refrigerating medium is made of 50-100 layers in total. The ferroelectric ceramic refrigeration medium 1 with a multilayer structure is prepared by adopting a tape casting method, and the size of an external electric field of the external electric field device 2 is 100-1000kv/cm, so that a refrigerator is driven to work.
The utility model discloses the theory of operation: the ferroelectric ceramic refrigeration medium 1 generates negative electricity card effect under the action of the external electric field applied by the external electric field equipment 2, so that the temperature of the ferroelectric is reduced, and the ferroelectric is connected with the refrigerated end 4 through the mechanical conveying system 3 to absorb heat. Then the mechanical handling system 3 moves to connect the ferroelectric ceramic refrigeration medium 1 with the heat dissipation system 5 to release heat.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. A solid refrigerator based on the ferroelectric negative electric card effect is characterized in that: the solid refrigerator based on the ferroelectric negative electricity card effect comprises a ferroelectric ceramic refrigerating medium (1), an external electric field device (2) and a mechanical carrying system (3), wherein the ferroelectric ceramic refrigerating medium (1) is connected with an object to be refrigerated and a heat dissipation system through the mechanical carrying system (3), the mechanical carrying system (3) is composed of a guide rail and a motor, an electrode is embedded in the ferroelectric ceramic refrigerating medium (1), and the external electric field device (2) is connected with the embedded electrode.
2. The solid state refrigerator based on the ferroelectric negative electric card effect as claimed in claim 1, wherein: the ferroelectric ceramic refrigeration medium (1) is 0.05-100um in single-layer thickness and is made of 50-100 layers in total.
3. The solid state refrigerator based on the ferroelectric negative electric card effect as claimed in claim 1, wherein: the external electric field of the external electric field device (2) is 100-1000 kv/cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922392994.7U CN211702785U (en) | 2019-12-27 | 2019-12-27 | Solid refrigerator based on ferroelectric negative electric card effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922392994.7U CN211702785U (en) | 2019-12-27 | 2019-12-27 | Solid refrigerator based on ferroelectric negative electric card effect |
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| Publication Number | Publication Date |
|---|---|
| CN211702785U true CN211702785U (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922392994.7U Active CN211702785U (en) | 2019-12-27 | 2019-12-27 | Solid refrigerator based on ferroelectric negative electric card effect |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113066923A (en) * | 2021-03-10 | 2021-07-02 | 南方科技大学 | All-static solid refrigerator and preparation method thereof |
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2019
- 2019-12-27 CN CN201922392994.7U patent/CN211702785U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113066923A (en) * | 2021-03-10 | 2021-07-02 | 南方科技大学 | All-static solid refrigerator and preparation method thereof |
| CN113066923B (en) * | 2021-03-10 | 2022-10-04 | 南方科技大学 | All-static solid refrigerator and preparation method thereof |
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