CN114521547A - Hair transplantation split device based on semiconductor refrigeration - Google Patents
Hair transplantation split device based on semiconductor refrigeration Download PDFInfo
- Publication number
- CN114521547A CN114521547A CN202210118992.2A CN202210118992A CN114521547A CN 114521547 A CN114521547 A CN 114521547A CN 202210118992 A CN202210118992 A CN 202210118992A CN 114521547 A CN114521547 A CN 114521547A
- Authority
- CN
- China
- Prior art keywords
- semiconductor refrigeration
- heat dissipation
- semiconductor
- hair transplantation
- heat
- 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.)
- Pending
Links
- 239000004065 semiconductor Substances 0.000 title claims abstract description 90
- 238000005057 refrigeration Methods 0.000 title claims abstract description 87
- 210000004209 hair Anatomy 0.000 title claims abstract description 47
- 238000002054 transplantation Methods 0.000 title claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 81
- 239000007788 liquid Substances 0.000 claims abstract description 75
- 230000017525 heat dissipation Effects 0.000 claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 230000000694 effects Effects 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 5
- 210000003780 hair follicle Anatomy 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 6
- 238000000338 in vitro Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 4
- 230000037323 metabolic rate Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000005457 ice water Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 206010016936 Folliculitis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N1/00—Preservation of bodies of humans or animals, or parts thereof
Abstract
The invention relates to the technical field of hair transplantation equipment, in particular to split hair transplantation equipment based on semiconductor refrigeration. The utility model provides a components of a whole that can function independently equipment is transplanted to hair based on semiconductor refrigeration, including a platform, semiconductor refrigeration mechanism, heat dissipation mechanism, semiconductor refrigeration mechanism install in the platform, heat dissipation mechanism external in the platform is outside, just heat dissipation mechanism with semiconductor refrigeration mechanism is linked together through a pipeline, the storage is used for absorbing in the semiconductor refrigeration mechanism the thermal circulation liquid of semiconductor refrigeration mechanism, circulation liquid through the pipeline will absorb the heat and carry extremely heat dissipation mechanism, heat dissipation mechanism is used for dispelling the circulation liquid heat to in circulating liquid circulation to semiconductor refrigeration mechanism after will dispelling the heat, realize refrigeration platform, improve the hair transplantation in-process greatly and press from both sides the security and the convenience of getting the hair follicle.
Description
Technical Field
The invention relates to the technical field of hair transplantation equipment, in particular to split hair transplantation equipment based on semiconductor refrigeration.
Background
Currently, hair transplantation surgery is in great demand. The hair transplantation operation time is generally longer, so in order to prolong the survival time of the hair in vitro, a cooling mode is often adopted to reduce the metabolic rate of the hair follicle in vitro so as to prolong the in vitro preservation time. The conventional method for storing the common ice blocks for the hair follicles is characterized in that the ice blocks have the temperature of an ice-water mixture when being melted, the temperature of the ice-water mixture is 0 ℃, and water vapor in the air around the ice blocks is liquefied when the ice blocks are melted, so that the sterile area is damaged due to the moist temperature. The optimal temperature for storage of ex vivo tissue is 4 ℃.
In order to solve the above problems, an integrated picture of a hair transplantation refrigeration storage device has been published abroad, but the device has the risk that when the device works, a large amount of wind flows through a sterile area during heat dissipation to cause the sterile environment to be damaged, the platform position is high, hair is frequently clamped in the hair transplantation process, inconvenience is caused, and even the hair follicle falls.
In the semiconductor refrigeration, after the semiconductor is electrified, one side of the semiconductor wafer can form low temperature, and the other side of the semiconductor wafer can form high temperature, so that heat transfer is realized, namely, the refrigeration principle. The heat and the heat dissipation part are conveyed to the radiator through the circulating liquid and the heat through the pipeline by the pump, the heat is dissipated out through air cooling, the cooled circulating liquid is pumped back to the semiconductor refrigerating sheet again, the heat on one side of the high temperature is continuously taken away, and a cycle is formed. The temperature control utilizes a microcomputer relay and a temperature resistor to realize real-time temperature acquisition and judge whether refrigeration is needed. When the temperature reaches the set temperature, the work is stopped (constant) until the temperature rises, and the refrigeration action is started again.
Therefore, semiconductor refrigeration is widely applied to various refrigeration devices because of good refrigeration and heat dissipation effects, but how to apply the semiconductor refrigeration to the refrigeration device for storing hair in the hair transplantation operation is a problem which needs to be solved urgently by the invention.
Disclosure of Invention
The invention aims to solve at least one technical problem in the prior art and provides a split hair transplantation device based on semiconductor refrigeration.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the utility model provides a hair transplantation components of a whole that can function independently equipment based on semiconductor refrigeration, includes a platform, semiconductor refrigeration mechanism, heat dissipation mechanism, semiconductor refrigeration mechanism install in the platform, heat dissipation mechanism external connect in the platform is outside, just heat dissipation mechanism with semiconductor refrigeration mechanism is linked together through a pipeline, the storage has the circulation liquid that is used for absorbing semiconductor refrigeration mechanism's heat in the semiconductor refrigeration mechanism, the circulation liquid will absorb the heat and carry to heat dissipation mechanism through the pipeline, heat dissipation mechanism is used for dispelling the circulation liquid heat to the circulation liquid circulation after will dispelling the heat is to semiconductor refrigeration mechanism in.
Furthermore, the semiconductor refrigeration mechanism comprises a semiconductor refrigeration piece and a circulating liquid storage box, the semiconductor refrigeration piece is connected with the circulating liquid storage box, and heat generated by the semiconductor refrigeration piece is absorbed by circulating liquid in the circulating liquid storage box and then is transmitted to the heat dissipation mechanism.
Further, the heat dissipation mechanism comprises a liquid tank and a heat dissipation fan, wherein the heat dissipation fan is arranged outside the liquid tank and used for dissipating heat of the circulating liquid.
Further, a liquid tank is communicated with the circulating liquid storage tank, a water pump is mounted on a pipeline of the liquid tank communicated with the circulating liquid, and one end of the water pump is communicated with the liquid tank; the other end is communicated with the circulating liquid storage tank.
The semiconductor refrigeration device further comprises a controller, wherein the controller is electrically connected with the semiconductor refrigeration mechanism and the heat dissipation mechanism and is used for controlling the working states of the semiconductor refrigeration mechanism and the heat dissipation mechanism.
Furthermore, a first temperature detector for detecting circulating liquid is installed on the heat dissipation mechanism, and the first temperature detector is electrically connected with the controller.
Furthermore, a second temperature detector for detecting the refrigerating effect of the semiconductor refrigerating mechanism is installed on the semiconductor refrigerating mechanism, and the second temperature detector is electrically connected with the controller.
Furthermore, the refrigeration temperature control device also comprises a display screen, wherein the display screen is arranged on the platform and used for displaying the refrigeration temperature value of the semiconductor refrigeration mechanism.
Further, the platform is flat and hair-like.
Furthermore, the device also comprises a sterile cloth, and the sterile cloth covers the platform.
The invention has the beneficial effects that: as can be seen from the above description of the present invention, compared with the prior art, the split hair transplantation device based on semiconductor refrigeration of the present invention has the advantages that the semiconductor refrigeration mechanism and the heat dissipation mechanism are arranged on the platform, so that the split hair transplantation device has a better sterile use environment and better heat dissipation efficiency and stability in the hair transplantation operation, and simultaneously, the characteristics of complete coverage of the refrigeration platform and the sterile towel can be realized, and the safety and convenience for clamping hair follicles in the hair transplantation process are greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of a split hair transplantation device based on semiconductor refrigeration in a preferred embodiment of the invention.
Reference numerals: 1. a platform; 2. a semiconductor refrigeration mechanism; 201. a semiconductor refrigeration sheet; 202. a circulating liquid storage tank; 3. a heat dissipation mechanism; 301. a liquid tank; 302. a heat radiation fan; 4. a water pump; 5. a first temperature detector; 6. a second temperature detector; 7. a display screen.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, in a preferred embodiment of the present invention, a hair transplantation split device based on semiconductor refrigeration includes a platform 1, a semiconductor refrigeration mechanism 2, and a heat dissipation mechanism 3, the semiconductor refrigeration mechanism 2 is installed in the platform 1, the heat dissipation mechanism 3 is externally connected to the outside of the platform 1, the heat dissipation mechanism 3 is communicated with the semiconductor refrigeration mechanism 2 through a pipeline, a circulation liquid for absorbing heat of the semiconductor refrigeration mechanism is stored in the semiconductor refrigeration mechanism 2, the circulation liquid conveys the absorbed heat to the heat dissipation mechanism 3 through the pipeline, the heat dissipation mechanism is used for dissipating heat of the circulation liquid, and the dissipated circulation liquid is circulated into the semiconductor refrigeration mechanism 2, so as to implement a refrigeration platform, and greatly improve safety and convenience of hair follicle clamping in a hair transplantation process.
As a preferred embodiment of the present invention, it may also have the following additional technical features: the semiconductor refrigerating mechanism 2 comprises a semiconductor refrigerating sheet 201 and a circulating liquid storage box 202, the semiconductor refrigerating sheet 201 is connected with the circulating liquid storage box 202, and heat generated by the semiconductor refrigerating sheet 201 is absorbed by circulating liquid in the circulating liquid storage box 202 and then is transmitted to the heat dissipation mechanism 3, so that the hair transplantation operation has a better sterile use environment and better heat dissipation efficiency and stability.
In this embodiment, the heat dissipation mechanism 3 includes a liquid tank 301 and a heat dissipation fan 302, and the heat dissipation fan 302 is disposed outside the liquid tank 301 and is configured to dissipate heat of the circulating liquid to ensure a refrigeration effect of the platform.
In this embodiment, the liquid tank 301 is communicated with the circulating liquid storage tank 202, so that the circulating liquid circulates inside and outside the platform; a water pump 4 is arranged on a pipeline of the liquid tank 301 communicated with the circulating liquid 202, and one end of the water pump 4 is communicated with the liquid tank 301; the other end of the circulating liquid storage tank is communicated with the circulating liquid storage tank 202, so that the circulation of the circulating liquid is realized, the optimal temperature value of the hair stored in the platform is ensured, the metabolic rate of the hair follicle in vitro is reduced in a cooling mode, and the in vitro preservation time is prolonged.
In this embodiment, the semiconductor refrigeration system further comprises a controller, wherein the controller is electrically connected with the semiconductor refrigeration mechanism 2 and the heat dissipation mechanism 3 and is used for controlling the working states of the semiconductor refrigeration mechanism 2 and the heat dissipation mechanism 3.
In this embodiment, install the first temperature-detecting instrument 5 that is used for detecting the circulation liquid on the heat dissipation mechanism 3, first temperature-detecting instrument 5 with the controller electricity is connected, can make circulation liquid radiating efficiency improve, can reduce simultaneously because of the voltage mismatch leads to the waste of energy, can prolong the life-span and the stability of circulating water pump and outer radiator fan moreover.
In this embodiment, install the second temperature detector 6 that is used for detecting semiconductor refrigeration mechanism refrigeration effect on the semiconductor refrigeration mechanism 2, second temperature detector 6 with the controller electricity is connected, and the activity of hair is guaranteed to the temperature of the people's control platform of being convenient for.
In this embodiment, still include display screen 7, display screen 7 install in on the platform 1 for show semiconductor refrigeration mechanism's refrigeration temperature value, the temperature information that second temperature detector 6 detected it sends the controller promptly, and the controller receives this temperature information and transmits to display screen 7, and the temperature of people's observation platform of being convenient for guarantees the activity of hair.
In this embodiment, platform 1 is flat and flat hair form, can make things convenient for getting of hair follicle to put, has the risk that can prevent the hair follicle landing that produces because the platform is too high to other refrigeration platforms
In the embodiment, the hair transplantation device further comprises sterile cloth, the sterile cloth covers the platform, so that the hair transplantation process can be realized through full coverage of the sterile towel, the temperature reduction process of the isolated hair can be realized by heat taken away by the low-temperature platform, the in-vitro life of the hair can be prolonged by the in-vitro metabolic rate of the isolated hair, and the isolated hair can be conveniently implanted at low temperature during hair transplantation. The sterile towel can be completely covered without contacting a non-sterile area in the whole transplanting process, so that the occurrence of folliculitis caused by the pollution of hair follicles is reduced.
The working principle of the invention is as follows: when the semiconductor refrigerating chip and the temperature detection resistor are under the action of the microcomputer controller, refrigeration is finished. According to the law of conservation of energy, heat is required to be dissipated, all the heat is transferred by circulating liquid, and the semiconductor refrigerating sheet is used for refrigerating and heating.
When a 12V voltage signal is supplied to the controller by a 220V power supply, the water pump and the outer cooling fan can obtain a proper working pressure under the feedback of the temperature monitoring resistor of the circulating liquid, the circulating liquid from the cooling water tank of the semiconductor chilling plate is conveyed to the outer cooling water tank through a pipeline, when the circulating liquid passes through the outer cooling water tank, the heat of the circulating liquid is dissipated through the fan, and then the circulating liquid is circulated into the cooling water tank of the semiconductor chilling plate again to take away the heat on the high-temperature side of the semiconductor. If the temperature of the circulating liquid is detected to be too high by the circulating liquid temperature monitoring resistor, a high-temperature signal is fed back to the pair, and a higher voltage is output to supply the water pump and the heat dissipation fan, so that the circulating speed of the circulating liquid is increased, and the heat dissipation fan has larger air flow.
The above additional technical features can be freely combined and used in superposition by those skilled in the art without conflict.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. The utility model provides a hair transplantation components of a whole that can function independently equipment based on semiconductor refrigeration which characterized in that: including a platform (1), semiconductor refrigeration mechanism (2), heat dissipation mechanism (3), semiconductor refrigeration mechanism (2) install in platform (1), heat dissipation mechanism (3) external in platform (1) is outside, just heat dissipation mechanism (3) with semiconductor refrigeration mechanism (2) are linked together through a pipeline, be used for absorbing in semiconductor refrigeration mechanism (2) the circulation liquid of the heat of semiconductor refrigeration mechanism (2), circulation liquid will absorb the heat and carry extremely heat dissipation mechanism (3) through the pipeline, heat dissipation mechanism (3) are used for dispelling the circulation liquid heat to the circulation liquid circulation after will dispelling the heat is to semiconductor refrigeration mechanism (2) in.
2. The split hair transplantation device based on semiconductor refrigeration as claimed in claim 1, wherein: the semiconductor refrigerating mechanism (2) comprises a semiconductor refrigerating sheet (201) and a circulating liquid storage box (202), the semiconductor refrigerating sheet (201) is connected with the circulating liquid storage box (202), and heat generated by the semiconductor refrigerating sheet (201) is absorbed by circulating liquid in the circulating liquid storage box (202) and then is transmitted to the heat dissipation mechanism (3).
3. The split hair transplantation device based on semiconductor refrigeration as claimed in claim 2, wherein: the heat dissipation mechanism (3) comprises a liquid tank (301) and a heat dissipation fan (302), wherein the heat dissipation fan (302) is arranged outside the liquid tank (301) and used for dissipating heat of circulating liquid.
4. The split hair transplantation device based on semiconductor refrigeration as claimed in claim 3, wherein: the liquid tank (301) is communicated with the circulating liquid storage tank (202), a water pump (4) is mounted on a pipeline of the liquid tank (301) communicated with the circulating liquid, and one end of the water pump (4) is communicated with the liquid tank (301); the other end is communicated with the circulating liquid storage tank (202).
5. The split hair transplantation device based on semiconductor refrigeration as claimed in claim 1, wherein: the semiconductor refrigeration system is characterized by further comprising a controller, wherein the controller is electrically connected with the semiconductor refrigeration mechanism (2) and the heat dissipation mechanism (3) and is used for controlling the working states of the semiconductor refrigeration mechanism (2) and the heat dissipation mechanism (3).
6. The split hair transplantation device based on semiconductor refrigeration as claimed in claim 5, wherein: the heat dissipation mechanism (3) is provided with a first temperature detector (5) for detecting circulating liquid, and the first temperature detector (5) is electrically connected with the controller.
7. The split hair transplantation device based on semiconductor refrigeration as claimed in claim 5, wherein: the semiconductor refrigerating mechanism (2) is provided with a second temperature detector (6) for detecting the refrigerating effect of the semiconductor refrigerating mechanism (2), and the second temperature detector (6) is electrically connected with the controller.
8. The split hair transplantation device based on semiconductor refrigeration as claimed in claim 5, wherein: the semiconductor refrigeration device is characterized by further comprising a display screen (7), wherein the display screen (7) is installed on the platform (1) and used for displaying the refrigeration temperature value of the semiconductor refrigeration mechanism (2).
9. The split hair transplantation device based on semiconductor refrigeration as claimed in claim 1, wherein: the platform (1) is flat and hair-flat.
10. The split hair transplantation device based on semiconductor refrigeration as claimed in claim 9, wherein: the sterile cloth is covered on the platform (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210118992.2A CN114521547A (en) | 2022-02-08 | 2022-02-08 | Hair transplantation split device based on semiconductor refrigeration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210118992.2A CN114521547A (en) | 2022-02-08 | 2022-02-08 | Hair transplantation split device based on semiconductor refrigeration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114521547A true CN114521547A (en) | 2022-05-24 |
Family
ID=81623124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210118992.2A Pending CN114521547A (en) | 2022-02-08 | 2022-02-08 | Hair transplantation split device based on semiconductor refrigeration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114521547A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180023823A1 (en) * | 2016-07-19 | 2018-01-25 | Chuan-Sheng Chen | Semiconductor-based air conditioning device |
| CN207247652U (en) * | 2017-07-31 | 2018-04-17 | 中铁西北科学研究院有限公司 | A kind of semiconductor refrigeration controller |
| CN112690271A (en) * | 2020-12-28 | 2021-04-23 | 成都恒博医院有限责任公司 | Constant temperature control device for autologous hair follicle transplantation |
| CN213901542U (en) * | 2020-12-24 | 2021-08-06 | 郑州阳坤医疗器械有限公司 | Semiconductor heat sink for medical temperature controller |
-
2022
- 2022-02-08 CN CN202210118992.2A patent/CN114521547A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180023823A1 (en) * | 2016-07-19 | 2018-01-25 | Chuan-Sheng Chen | Semiconductor-based air conditioning device |
| CN207247652U (en) * | 2017-07-31 | 2018-04-17 | 中铁西北科学研究院有限公司 | A kind of semiconductor refrigeration controller |
| CN213901542U (en) * | 2020-12-24 | 2021-08-06 | 郑州阳坤医疗器械有限公司 | Semiconductor heat sink for medical temperature controller |
| CN112690271A (en) * | 2020-12-28 | 2021-04-23 | 成都恒博医院有限责任公司 | Constant temperature control device for autologous hair follicle transplantation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202077668U (en) | Automatic temperature-adjustable helmet | |
| CN103648252B (en) | Cooling system for electrical device | |
| CN105932525A (en) | Portable laser cooling and power supply apparatus | |
| CN201188736Y (en) | Constant temperature cooling system for electric irradiation accelerator | |
| CN114521547A (en) | Hair transplantation split device based on semiconductor refrigeration | |
| CN106571497A (en) | Battery heat management system for electric vehicle | |
| CN108175566A (en) | A kind of miniature electronic is brought down a fever instrument | |
| CN218120249U (en) | Heat abstractor, air conditioning unit | |
| CN115869123A (en) | Medical temperature control instrument | |
| CN206163651U (en) | Battery heat managing system of electric motor car | |
| CN206067594U (en) | A kind of cold storage refrigerator car | |
| JP4385447B2 (en) | Thermal storage air conditioner | |
| CN211485196U (en) | Energy-saving medical temperature control instrument | |
| CN211023446U (en) | Cooling device for emergency intensive care unit | |
| CN206160550U (en) | Cold and hot all -in -one | |
| CN208693584U (en) | A kind of miniature electronic is brought down a fever instrument | |
| CN207676236U (en) | A kind of laser that can be temperature automatically controlled | |
| CN218585242U (en) | Coolant temperature adjusting device for sub-low temperature treatment | |
| CN211954734U (en) | Auxiliary refrigerating system for pathological tissue section | |
| CN201332111Y (en) | Heat preserving battery cabinet | |
| CN220269715U (en) | Heat balance device of hot water condenser | |
| CN220287920U (en) | Circulating type sinking fan | |
| CN217604417U (en) | Replaceable refrigerating device and body surface refrigerating equipment | |
| CN213090175U (en) | Circulating refrigeration equipment | |
| CN214124307U (en) | Compact dry ice air-cooled laser heat dissipation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220524 |