CN111645997A - Cold-hot double-effect logistics box adopting vacuum heat insulation plate and magnetic refrigeration technology - Google Patents
Cold-hot double-effect logistics box adopting vacuum heat insulation plate and magnetic refrigeration technology Download PDFInfo
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- CN111645997A CN111645997A CN202010469031.7A CN202010469031A CN111645997A CN 111645997 A CN111645997 A CN 111645997A CN 202010469031 A CN202010469031 A CN 202010469031A CN 111645997 A CN111645997 A CN 111645997A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/02—Internal fittings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D51/00—Closures not otherwise provided for
- B65D51/24—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
- B65D81/3476—Packages provided with an electrical circuit, e.g. resistances, for heating the contents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
- B65D81/3813—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container being in the form of a box, tray or like container
- B65D81/3823—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container being in the form of a box, tray or like container formed of different materials, e.g. laminated or foam filling between walls
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Refrigerator Housings (AREA)
Abstract
The invention discloses a cold and hot double-effect logistics box adopting a vacuum heat insulation plate and a magnetic refrigeration technology, which relates to the technical field of logistics boxes and comprises a box body, wherein a box body liner is a polystyrene foam heat insulation plate, and the outer wall of the box body is wrapped by the vacuum heat insulation plate; the double-sided box cover is arranged on the opening of the box body, and a vent is formed in the double-sided box cover; the magnetic refrigeration device is arranged on the top surface of the double-sided box cover; the heat dissipation device is arranged on the magnetic refrigeration device and is positioned on one side of the magnetic refrigeration device, which is far away from the ventilation opening; the display device is arranged on the top surface of the double-sided box cover; the magnetic refrigeration device and the heat dissipation device are electrically connected with the storage battery through leads. The top surface of the double-sided box cover of the cold and hot double-effect logistics box is provided with a magnetic refrigeration device and a heat dissipation device, and the bottom surface of the double-sided box cover is provided with a vent; when the magnetic refrigeration device is arranged outside the box body, the magnetic refrigeration device can provide cold energy into the box body; the double-sided box cover is turned over, and when the magnetic refrigeration device is arranged in the box body, heat can be provided for the box body.
Description
Technical Field
The invention relates to the technical field of vacuum heat insulation plates, in particular to a cold and hot double-effect logistics box adopting a vacuum heat insulation plate and a magnetic refrigeration technology.
Background
With the rapid development of social economy and the improvement of the national standard of living, the common foam heat preservation device can not guarantee various requirements, the vacuum heat insulation plate is used as the heat preservation layer to improve the heat preservation effect of the device, magnetic refrigeration is a technology for realizing refrigeration by utilizing the magnetocaloric effect of a magnetic material, although the traditional refrigeration technology taking gases such as chlorofluorocarbon and chlorofluorocarbon as working media is widely applied to daily life at present, with the increasing attention of people on environmental protection and efficiency, the magnetic refrigeration is called as an environment-friendly refrigeration technology without destroying the ozone layer and causing the greenhouse effect, and is favored by the academic and engineering circles at home and abroad in recent years.
The existing small logistics boxes mostly adopt a refrigeration mode which takes gases such as chlorofluorocarbon, chlorofluorocarbon and the like as working media and can only refrigerate or heat unilaterally; the logistics box with the functions of refrigeration and heating has a complex structure, and cannot meet the requirements of refrigeration and heat preservation in long-time logistics transportation and storage.
Disclosure of Invention
Aiming at the problems, the invention aims to provide a cold and hot double-effect logistics box adopting a vacuum heat insulation plate and a magnetic refrigeration technology, and solves the technical problems that the existing common foam heat insulation device is poor in heat insulation effect and short in heat insulation time, and cannot meet the requirements of logistics transportation storage heat insulation.
In order to achieve the purpose, the invention adopts the technical scheme that:
a cold and hot double-effect logistics box adopting a vacuum heat insulation plate and a magnetic refrigeration technology comprises: the refrigerator comprises a refrigerator body, a refrigerator body and a refrigerator body, wherein the refrigerator body is an accommodating chamber with an open upper part, an inner container of the refrigerator body is a polystyrene foam heat insulation board, and a vacuum heat insulation board is wrapped on the outer wall of the refrigerator body;
the double-sided box cover is arranged on the box body opening and is provided with a top surface and a bottom surface which are opposite, clamping blocks clamped with the box body opening are arranged on the outer edges of the top surface and the bottom surface of the double-sided box cover, and a vent is formed in the double-sided box cover;
the magnetic refrigeration device is arranged on the top surface of the double-sided box cover, the output end of the magnetic refrigeration device is positioned in the vent, the magnetic refrigeration device is provided with a temperature sensor, and the temperature sensor is positioned in the vent;
the heat dissipation device is arranged on the magnetic refrigeration device and is positioned on one side, far away from the ventilation opening, of the magnetic refrigeration device;
the display device is arranged on the top surface of the double-sided box cover, is in signal connection with the temperature sensor and is used for displaying the temperature of the magnetic refrigeration device after refrigeration;
the storage battery is arranged on the box body, and the magnetic refrigeration device and the heat dissipation device are electrically connected with the storage battery through leads.
Preferably, a clamping groove is formed in the upper opening of the box body downwards, the clamping block is clamped in the clamping groove, and a sealing gasket is arranged between the clamping block and the clamping groove.
The cold and hot double-effect logistics box adopting the vacuum insulation board and the magnetic refrigeration technology is characterized in that the core material of the vacuum insulation board is made of glass fiber.
The cold and hot double-effect logistics box adopting the vacuum heat insulation plate and the magnetic refrigeration technology is characterized in that the vacuum heat insulation plate is wrapped on the top surface of the double-sided box cover.
The cold and hot double-effect logistics box adopting the vacuum insulation panel and the magnetic refrigeration technology is characterized in that a fixing protective layer is arranged on the outer side of the vacuum insulation panel.
Preferably, the fixed protective layer comprises a core material framework and a pore filler, the core material framework is made of glass fiber, the pore filler is powdered quartz powder and diatomite, and the pore filler is adhered among pores of the core material framework through a phenolic resin adhesive.
The cold and hot double-effect logistics box adopting the vacuum heat insulation plate and the magnetic refrigeration technology is characterized in that the double-sided box cover is formed by bonding two polystyrene foam heat insulation plates.
Preferably, the double-sided box cover is rectangular or circular, and the shape of the double-sided box cover is the same as that of an upper opening of the box body.
The cold and hot double-effect logistics box adopting the vacuum insulation panels and the magnetic refrigeration technology is characterized in that the heat dissipation device is a fan.
Due to the adoption of the technology, compared with the prior art, the invention has the following positive effects:
1. the cold and hot double-effect logistics box adopts the vacuum heat insulation plate as the outer heat insulation layer, has better heat insulation effect than the vacuum heat insulation plate as the middle heat insulation layer and the inner heat insulation layer, can effectively solve the problems of poor heat insulation effect and short heat insulation time of a common foaming device, and has the advantages of light weight and low heat conductivity coefficient.
2. The cold and hot double-effect logistics box adopts a magnetic refrigeration technology, the magnetic refrigeration technology is a technology for providing a large amount of cold and heat by using the magnetocaloric effect of a solid magnetic material, refrigeration and heating can be realized, the ozone layer cannot be damaged by a magnetic refrigeration device, and the cold and hot double-effect logistics box has the advantages of high refrigeration efficiency, environmental friendliness and energy conservation.
3. The inner container of the box body of the cold and hot double-effect logistics box disclosed by the invention uses the polystyrene foam heat-insulation board, so that the box body has good weather resistance and dimensional stability in temperature change, and the firmness of the box body is enhanced.
4. The double-sided case cover of the cold and hot double-effect logistics case is formed by back-to-back bonding of two polystyrene foam heat preservation plates, the top surface of the double-sided case cover is provided with a magnetic refrigeration device and a heat dissipation device, and the bottom surface of the double-sided case cover is provided with a ventilation opening; when the top surface is outside the box body, cold energy can be provided for the box body; the two-sided case lid of upset, when the top surface was in the box, magnetic refrigeration device can provide the heat to the box in owing to the magnetism working medium heat absorption is exothermic, therefore the box has the refrigeration and heats the function.
Drawings
FIG. 1 is a schematic structural diagram of a dual purpose cold and hot logistics box of the present invention;
FIG. 2 is a schematic cross-sectional view of the housing of the dual hot and cold logistics box of the present invention;
FIG. 3 is a front view of a double-sided cover of the hot and cold dual purpose logistics box of the present invention;
FIG. 4 is a schematic structural view of the top surface of the double-sided cover of the hot and cold dual purpose logistics box of the present invention;
FIG. 5 is a schematic view of the bottom of the double-sided cover of the hot and cold dual purpose logistics box of the present invention;
FIG. 6 is a comparison graph of the thermal insulation effect of the vacuum insulation panel selected as the outer thermal insulation layer of the box body, and the data of the vacuum insulation panel selected as the middle thermal insulation layer and the inner thermal insulation layer.
Reference numerals: 1. a double-sided box cover; 11. a vent; 12. a top surface; 13. a bottom surface; 14. a clamping block; 2. a display device; 3. a box body; 4. a magnetic refrigeration device; 5. a heat sink; 6. a storage battery; 7. a vacuum insulation panel; 8. polystyrene foam insulation board.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings and specific embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
FIG. 1 is a schematic structural diagram of a dual purpose cold and hot logistics box of the present invention; FIG. 2 is a schematic cross-sectional view of the housing of the dual hot and cold logistics box of the present invention; FIG. 3 is a front view of a double-sided cover of the hot and cold dual purpose logistics box of the present invention; FIG. 4 is a schematic structural view of the top surface of the double-sided cover of the hot and cold dual purpose logistics box of the present invention;
fig. 5 is a schematic structural diagram of the bottom surface of the double-sided cover of the cooling and heating double-effect logistics box.
The invention relates to a cold and hot double-effect logistics box adopting a vacuum insulated panel and a magnetic refrigeration technology, which is shown in figures 1, 2, 3, 4 and 5 and comprises a box body 3, a double-sided box cover 1, a magnetic refrigeration device 4, a heat dissipation device 5, a display device 2 and a storage battery 6.
The box body 3 is an accommodating chamber with an open upper part, the inner container of the box body 3 is a polystyrene foam heat-insulation plate 8, and the outer wall of the box body 3 is wrapped with a vacuum heat-insulation plate 7; the double-sided box cover 1 is arranged on the opening of the box body 3, the double-sided box cover 1 is provided with a top surface 12 and a bottom surface 13 which are opposite, clamping blocks 14 clamped with the opening of the box body 3 are arranged on the outer edges of the top surface 12 and the bottom surface 13 of the double-sided box cover 1, a clamping groove (not shown in the figure) matched with the clamping blocks 14 is inwards arranged on the opening of the box body 3, the top surface 12 and the bottom surface 13 of the double-sided box cover 1 can be covered on the opening of the box body 3, a ventilation opening 11 is arranged on the double-sided box.
The magnetic refrigeration device 4 is arranged on the top surface 12 of the double-sided box cover 1, the output end of the magnetic refrigeration device 4 is located in the vent 11, the magnetic refrigeration device 4 utilizes the magnetocaloric effect of a magnetic material to realize refrigeration, the magnetocaloric effect means that the magnetic moments of the magnetic material are orderly arranged and changed when an external magnetic field is changed, namely, the magnetic entropy is changed, so that the heat absorption and heat release phenomena of the material are caused, the magnetic refrigeration device is different from the traditional refrigeration technology which takes gases such as chlorofluorocarbon and chlorofluorocarbon as working media, the magnetic refrigeration technology is environment-friendly, efficient and energy-saving, the magnetic refrigeration device 4 realizes the internal refrigeration of the box body 3, a temperature sensor (not shown in the figure) is arranged on the magnetic refrigeration device 4, the temperature sensor is located in the vent 11, and the.
The heat dissipation device 5 is arranged on the magnetic refrigeration device 4, the heat dissipation device 5 is positioned on one side, far away from the ventilation opening 11, of the magnetic refrigeration device 4, and heat generated on the magnetic refrigeration device 4 is dissipated to the outside through the heat dissipation device 5; the display device 2 is arranged on the top surface 12 of the double-sided box cover 1, and the display device 2 is in signal connection with the temperature sensor and is used for displaying the temperature of the magnetic refrigeration device 4 after refrigeration; the storage battery 6 is arranged on the box body 3, the magnetic refrigeration device 4 and the heat dissipation device 5 are both electrically connected with the storage battery 6 through leads, the storage battery 6 is used for supplying power to the magnetic refrigeration device 4 and the heat dissipation device 5, and the conversion of refrigeration and heating in the box body 3 can be realized through the turnover double-sided box cover 1.
FIG. 6 is a comparison graph of the thermal insulation effect of the vacuum insulation panel selected as the outer thermal insulation layer of the box body, and the data of the vacuum insulation panel selected as the middle thermal insulation layer and the inner thermal insulation layer.
Further, referring to fig. 2 and 6, the core material of the vacuum insulation panel 7 is made of glass fiber, the composite gas barrier film is wrapped outside the core material and is made by vacuum-pumping packaging, the thermal conductivity coefficient is low, and the vacuum insulation panel 7 has the advantages of environmental protection, high efficiency and energy saving, and when being used as an outer insulation layer of the box body 3, the vacuum insulation panel 7 has better insulation effect than being used as an intermediate insulation layer and an inner insulation layer.
Further optimizing above-mentioned embodiment, the vacuum insulation panel 7 has been wrapped up on the top surface 12 of two-sided case lid 1, and the outside of vacuum insulation panel 7 is provided with fixed protective layer (not shown in the figure), and fixed protective layer includes core material skeleton, hole filler and phenolic resin adhesive, and the core material skeleton adopts the glass fiber material, and the hole filler is powdered quartz powder and diatomaceous earth, and the hole filler passes through the bonding of phenolic resin adhesive between the hole of core material skeleton.
In addition, the cross section of the double-sided box cover 1 is I-shaped, the double-sided box cover 1 is formed by bonding two polystyrene foam heat-insulation plates 8, the inner container of the box body 3 and the double-sided box cover 1 are made of the polystyrene foam heat-insulation plates 8, the weather resistance and the size stability during temperature change are good, the firmness of the logistics box is enhanced, and the service life is prolonged.
The heat radiating device 5 is a fan, and the rotation of the fan radiates heat to the magnetic refrigeration device 4.
The working principle of the invention is explained next: when the magnetic refrigeration device 4 and the heat dissipation device 5 are arranged on the outer side of the box body 3, namely the top surface 12 of the double-sided box cover 1 is arranged on the outer side of the box body 3, the magnetic refrigeration device 4 is started to work to provide cold energy in the box body 3, and the logistics box is a refrigeration box; upset double-sided case lid 1, magnetic refrigeration device 4 and heat abstractor 5 are when being located 3 inboards of box, the top surface 12 of double-sided case lid 1 is located 3 inboards of box promptly, magnetic refrigeration device 4 is exothermic because the magnetic medium heat absorption, can provide the heat to in the box 3, consequently only need upset double-sided case lid 1 can realize the dual function to the refrigeration or the heating in the box 3, double-sided case lid 1 and the 3 outside of box use vacuum insulation panels 7 as the heat preservation, can keep the content temperature stable for a long time, can be when refrigeration and heating, the temperature variation who guarantees the content for a long time is little, satisfy the heat retaining needs of commodity circulation transportation.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides an adopt cold and hot dual-purpose thing flow box of vacuum insulation panel and magnetic refrigeration technique which characterized in that includes:
the box body (3) is an accommodating chamber with an open upper part, an inner container of the box body (3) is a polystyrene foam heat-insulation plate (8), and the outer wall of the box body (3) is wrapped with a vacuum heat-insulation plate (7);
the box cover comprises a double-sided box cover (1), wherein the double-sided box cover (1) is arranged on an opening of a box body (3), the double-sided box cover (1) is provided with a top surface (12) and a bottom surface (13) which are opposite, clamping blocks (14) clamped with the opening of the box body (3) are arranged on the outer edges of the top surface (12) and the bottom surface (13) of the double-sided box cover (1), and a ventilation opening (11) is formed in the double-sided box cover (1);
the magnetic refrigeration device (4) is arranged on the top surface (12) of the double-sided box cover (1), the output end of the magnetic refrigeration device (4) is positioned in the ventilation opening (11), a temperature sensor is arranged on the magnetic refrigeration device (4), and the temperature sensor is positioned in the ventilation opening (11);
the heat dissipation device (5) is arranged on the magnetic refrigeration device (4), and the heat dissipation device (5) is positioned on one side, far away from the ventilation opening (11), of the magnetic refrigeration device (4);
the display device (2) is arranged on the top surface (12) of the double-sided box cover (1), and the display device (2) is in signal connection with the temperature sensor and is used for displaying the temperature of the magnetic refrigeration device (4) after refrigeration;
the storage battery (6), the storage battery (6) is arranged on the box body (3), and the magnetic refrigeration device (4) and the heat dissipation device (5) are electrically connected with the storage battery (6) through leads.
2. The cold and hot double-effect logistics box adopting vacuum insulation panels and magnetic refrigeration technology as claimed in claim 1, wherein the core material of the vacuum insulation panels (7) is made of glass fiber.
3. The double-effect cold and hot logistics box adopting vacuum insulation panels and magnetic refrigeration technology as claimed in claim 2, wherein the vacuum insulation panels (7) are wrapped on the top surface (12) of the double-sided box cover (1).
4. Double-effect logistics box employing vacuum insulation panels and magnetic refrigeration technology according to claim 3, characterized in that the outside of the vacuum insulation panels (7) is provided with a fixed protection layer.
5. The cold and hot double-effect logistics box adopting the vacuum insulation panels and the magnetic refrigeration technology as claimed in claim 1, wherein the double-sided box cover (1) is formed by bonding two polystyrene foam insulation panels (8).
6. The dual-purpose logistics box of cooling and heating adopting vacuum insulation panels and magnetic refrigeration technology as claimed in claim 1, wherein the heat dissipation device (5) is a fan.
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| CN202010469031.7A CN111645997A (en) | 2020-05-28 | 2020-05-28 | Cold-hot double-effect logistics box adopting vacuum heat insulation plate and magnetic refrigeration technology |
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| CN202010469031.7A CN111645997A (en) | 2020-05-28 | 2020-05-28 | Cold-hot double-effect logistics box adopting vacuum heat insulation plate and magnetic refrigeration technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113877828A (en) * | 2021-10-13 | 2022-01-04 | 广东顺力智能物流装备股份有限公司 | Cold-chain logistics sorting system based on image recognition and sorting method thereof |
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| CN205470658U (en) * | 2015-12-31 | 2016-08-17 | 安徽机电职业技术学院 | Logistic box |
| CN106091522A (en) * | 2016-06-13 | 2016-11-09 | 山东大学 | Cold-storage delivery case based on semiconductor refrigerating |
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| CN108177880A (en) * | 2018-01-30 | 2018-06-19 | 泰州市乐律金属制品有限公司 | A kind of medical pharmacy incubator |
| CN207991053U (en) * | 2018-03-30 | 2018-10-19 | 内蒙古科技大学 | A kind of magnetic refrigeration-type anticollision car refrigerator |
| CN209160425U (en) * | 2018-05-04 | 2019-07-26 | 刘远兰 | Novel blue light wooden box |
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| CN209553872U (en) * | 2019-02-14 | 2019-10-29 | 郑州纳高塑料制品有限公司 | A kind of Packaging Bottle with two-way lid |
| CN210267843U (en) * | 2019-04-30 | 2020-04-07 | 上海宇昼科技有限公司 | Portable refrigeration and heating preservation box |
| CN209871171U (en) * | 2019-05-07 | 2019-12-31 | 张峰 | Positive and negative two-way cover closing mechanism of storage box cover |
| CN110487021A (en) * | 2019-08-20 | 2019-11-22 | 天津商业大学 | A kind of vortex tube refrigeration heating takeaway box |
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| CN113877828A (en) * | 2021-10-13 | 2022-01-04 | 广东顺力智能物流装备股份有限公司 | Cold-chain logistics sorting system based on image recognition and sorting method thereof |
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