CN114583352A - Large-capacity battery pack with temperature control device - Google Patents
Large-capacity battery pack with temperature control device Download PDFInfo
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- CN114583352A CN114583352A CN202210222490.4A CN202210222490A CN114583352A CN 114583352 A CN114583352 A CN 114583352A CN 202210222490 A CN202210222490 A CN 202210222490A CN 114583352 A CN114583352 A CN 114583352A
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- temperature control
- heat transfer
- control device
- transfer unit
- battery
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/635—Control systems based on ambient temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/637—Control systems characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devices; characterised by control of the internal current flowing through the cells, e.g. by switching
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
- H01M10/6572—Peltier elements or thermoelectric devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/258—Modular batteries; Casings provided with means for assembling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Secondary Cells (AREA)
Abstract
The invention relates to a high-capacity battery pack with a temperature control device, which comprises the temperature control device and at least two batteries, wherein each battery comprises an upper cover plate and a lower cover plate, the upper cover plate and the lower cover plate are respectively a positive pole and a negative pole of the battery, the temperature control device comprises at least one temperature control unit and at least one heat transfer unit, the heat transfer unit is connected with the temperature control unit, and the heat transfer unit is arranged between the poles connected with the two batteries and is in contact with the poles so as to exchange heat with the poles. Through the upper and lower apron with the battery as the positive, negative pole post of battery, set up temperature control device on the face is connected to utmost point post, in time will concentrate on the heat effluvium of battery utmost point post, improved heat conduction efficiency, ensured the security and the life of battery.
Description
Technical Field
The invention belongs to the technical field of batteries, and particularly relates to a high-capacity battery pack with a temperature control device.
Background
The high-capacity lithium battery is one of the development directions of the lithium battery, and can be applied to the fields of energy storage and power batteries. However, the large-capacity battery generates considerable heat during charging and discharging, and if the generated heat cannot be effectively released, the heat is accumulated in the single battery, so that the temperature of the large-capacity battery is not uniform, the service life of the battery is shortened, and a safety accident of the large-capacity battery can be caused in a serious case.
Among the prior art, temperature control device mostly dispels the heat to the group battery body, and the temperature of group battery mainly concentrates on utmost point post on, leads to temperature control device heat transfer effect not high, and the unnecessary heat that produces in the group battery is unable in time evacuated away, when needs carry out rising temperature to the group battery, also inconveniently carries out the rapid heating to the group battery, and the heat dissipation of group battery or the efficiency of heating are very low, cause the market competition of product not enough.
CN 208014824U discloses a lithium cell with temperature control device, it is through setting up temperature control device in the lithium cell outside, and temperature control device includes protecting sheathing, temperature sensor, metal pipe, heat-conducting liquid and miniature circulating pump, and the protecting sheathing parcel is in this external, temperature sensor pastes this external lithium cell, the metal pipe spiral is established between protecting sheathing and lithium cell body and the surface of lithium cell body is hugged closely to one side of metal pipe, and the heat-conducting liquid is filled in the metal pipe, the head and the tail intercommunication of metal pipe, and the junction of metal pipe is equipped with miniature circulating pump, temperature sensor are connected to miniature circulating pump through the relay. The temperature control device has a complex structure, and the effective contact surface between the conduit and the battery is less, so that the heating or heat dissipation efficiency is low.
CN 105552472 discloses a large capacity group battery temperature control device and large capacity group battery that has the device, this temperature control device is the heat conduction cover by the thermal insulation material designation, set up on the heat conduction cover and wear the trepanning with a plurality of battery monomer one-to-one's in the group battery a plurality of battery to wear the trepanning, be equipped with the filler hole between the trepanning of a battery on the heat conduction cover, and pack endothermic phase change material and fire extinguishing agent material in the filler hole, improve large capacity battery's heat conductivility with this, this temperature control device utilizes solid combined material to carry out heat transfer, heat transfer efficiency is low, set up in the battery of battery monomer one-to-one and wear the trepanning on the heat conduction cover, the product suitability is relatively poor.
Disclosure of Invention
Therefore, it is necessary to provide a battery pack with a temperature control device, wherein the temperature control device is disposed on the connecting surface of the positive and negative poles of the connected battery to control the temperature of the poles, and the battery pack has a simple structure, high heat dissipation or heating efficiency, and good temperature control effect.
The technical scheme of the invention is as follows:
the utility model provides a large capacity group battery with temperature control device, includes temperature control device and two at least batteries, the battery includes upper and lower apron, upper and lower apron is the positive, negative pole post of battery respectively, temperature control device includes at least one temperature control unit and at least one heat transfer unit, heat transfer unit with the temperature control unit is connected, heat transfer unit sets up between the utmost point post that is connected two batteries and contacts with utmost point post to carry out the heat exchange with utmost point post.
Preferably, the pole connecting surface is provided with a groove for fixing the heat transfer unit.
Preferably, the cross section of the groove is rectangular.
Preferably, the heat transfer unit is a soaking plate.
Preferably, the cross section of the groove is semi-elliptical.
Preferably, the heat transfer unit is a heat pipe.
Preferably, the width of the groove is not less than the width of the heat transfer unit, the height of the groove is less than half of the height of the heat transfer unit, and the sectional area of the groove is not less than half of the sectional area of the heat transfer unit.
Preferably, the temperature control unit is a semiconductor refrigerator.
Preferably, a heat transfer medium is arranged in the heat transfer unit.
Preferably, the temperature control unit is connected with at least two heat transfer units, the heat transfer units are insulated from each other, and the heat transfer units are insulated from the temperature control unit.
The invention has the beneficial effects that:
the invention discloses a high-capacity battery pack with a temperature control device, which comprises the temperature control device and at least two batteries, wherein each battery comprises an upper cover plate and a lower cover plate, the upper cover plate and the lower cover plate are respectively a positive pole and a negative pole of the battery, the temperature control device comprises at least one temperature control unit and at least one heat transfer unit, the heat transfer unit is connected with the temperature control unit, and the heat transfer unit is arranged between the poles connected with the two batteries and is in contact with the poles so as to exchange heat with the poles. Through the upper and lower apron with the battery as the positive, negative pole post of battery, set up temperature control device on the face is connected to utmost point post, in time will concentrate on the heat effluvium of battery utmost point post, improved heat conduction efficiency, ensured the security and the life of battery.
Drawings
Fig. 1 is one of the overall structural diagrams of a large capacity battery pack having a temperature control device;
FIG. 2 is a schematic diagram of the overall structure of the battery;
fig. 3 is an exploded view of the structure of a large-capacity battery pack having a temperature control device;
fig. 4 is a second schematic view of the overall structure of a large-capacity battery pack with a temperature control device;
FIG. 5 is a schematic view of a cover plate;
FIG. 6 is a second schematic view of the cover plate structure;
FIG. 7 is a third schematic view of the cover plate structure;
FIG. 8 is a fourth illustration of the cover plate structure;
reference numerals:
1-battery, 2-cover plate, 21-upper cover plate, 22-lower cover plate, 4-temperature control device, 41-temperature control unit, 42-heat transfer unit, 5-groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The embodiment shows a large-capacity battery pack with a temperature control device, which comprises the temperature control device 4 and two batteries 1, wherein each battery 1 comprises an upper cover plate 2 and a lower cover plate 3, the upper cover plate 2 is a positive pole of each battery 1, the lower cover plate 3 is a negative pole of each battery 1, the temperature control device 4 comprises a temperature control unit 41 and a heat transfer unit 42, and a heat transfer medium is arranged in each heat transfer unit 42. In this embodiment, the temperature control unit 41 is a semiconductor refrigerator, the heat transfer unit 42 is a heat spreader, and the semiconductor refrigerator can dissipate heat of the heat spreader in time, thereby improving the safety of the battery. The heat transfer unit 42 is connected with the temperature control unit 41, and the heat transfer unit 42 is disposed between and in contact with the poles connecting the two batteries to perform heat exchange with the poles. The pole connecting surface is provided with a groove 5, and the section of the groove 5 is rectangular so as to fix the heat transfer unit 42.
It should be noted that, in this embodiment, the upper cover plate and the lower cover plate of the battery are used as the positive pole and the negative pole of the battery, and the temperature control device is arranged on the pole connecting surface, so that heat concentrated on the pole of the battery is dissipated in time, the heat conduction efficiency is improved, and the safety and the service life of the battery are ensured.
The vapor chamber is a vacuum sealing body with a capillary structure on the inner wall, and a heat transfer medium is arranged in the vapor chamber and absorbs heat through phase change of the heat transfer medium. When the evaporation section of the soaking plate is heated, the heat transfer medium in the soaking plate can quickly absorb the heat and vaporize, the steam quickly expands due to the heat absorbed and moves from the high-pressure area to the low-pressure area of the soaking plate, and the steam can be quickly condensed into liquid and release heat when contacting the inner wall with lower temperature in the moving process and flows back to the evaporation section through the capillary action of the inner wall of the cavity.
Example 2
The embodiment shows a large-capacity battery pack with a temperature control device, which comprises the temperature control device 4 and three batteries 1, wherein each battery 1 comprises an upper cover plate 2 and a lower cover plate 3, the upper cover plate 2 is a positive pole of each battery 1, the lower cover plate 3 is a negative pole of each battery 1, the temperature control device 4 comprises a temperature control unit 41 and two heat transfer units 42, and heat transfer media are arranged in the heat transfer units 42. In this embodiment, the temperature control unit 41 is a semiconductor refrigerator, the heat transfer unit 42 is a vapor chamber, and the two vapor chambers share one semiconductor refrigerator. The two soaking plates are not contacted with each other, the soaking plates are in insulated connection with the semiconductor refrigerator, and the semiconductor refrigerator can timely dissipate the heat of the soaking plates, so that the safety of the battery is improved. The heat transfer unit 42 is connected with the temperature control unit 41, and the heat transfer unit 42 is disposed between and in contact with the poles connecting the two batteries to perform heat exchange with the poles. The pole connecting surface is provided with a groove 5 for fixing the heat transfer unit 42, the section of the groove 5 is rectangular, the width of the groove 5 is larger than that of the heat transfer unit 42, and the sectional area of the groove 5 is smaller than half of that of the heat transfer unit 42.
In the present embodiment, the two soaking plates do not contact each other, and the soaking plates are connected to the semiconductor cooler in an insulating manner, so as to prevent the battery from short-circuiting and improve the safety of the battery.
Example 3
The embodiment shows a large-capacity battery pack with a temperature control device, which comprises the temperature control device 4 and two batteries 1, wherein each battery 1 comprises an upper cover plate 2 and a lower cover plate 3, the upper cover plate 2 is a positive pole of the battery 1, the lower cover plate 3 is a negative pole of the battery 1, the temperature control device 4 comprises a temperature control unit 41 and a heat transfer unit 42, and a heat transfer medium is arranged in the heat transfer unit 42. In this embodiment, the temperature control unit 41 is a semiconductor refrigerator, the heat transfer unit 42 is a heat pipe, and the semiconductor refrigerator can dissipate heat of the heat pipe in time, so as to improve the safety of the battery. The heat transfer unit 42 is connected with the temperature control unit 41, and the heat transfer unit 42 is disposed between and in contact with the poles connecting the two batteries to perform heat exchange with the poles. The pole connecting surface is provided with a groove 5 for fixing the heat transfer unit 42, the section of the groove 5 is in a semi-ellipse shape, the width of the groove 5 is larger than that of the heat transfer unit 42, the height of the groove 5 is smaller than half of that of the heat transfer unit, and the sectional area of the groove 5 is larger than half of that of the heat transfer unit 42.
It should be noted that, in this embodiment, the cross section of the groove 5 is a semi-ellipse, the width of the groove 5 is greater than the diameter of the heat pipe, the height of the groove 5 is less than half of the diameter of the heat pipe, the sectional area of the groove 5 is greater than half of the sectional area of the heat pipe, when the battery post is connected, the groove 5 extrudes the heat pipe to deform the heat pipe, the contact area between the heat pipe and the post is increased, the heat dissipation effect is enhanced, the reliability of the structure is improved, and the battery performance stability is facilitated.
Example 4
The embodiment shows a large-capacity battery pack with a temperature control device, which comprises the temperature control device 4 and two batteries 1, wherein each battery 1 comprises an upper cover plate 2 and a lower cover plate 3, the upper cover plate 2 is a positive pole of the battery 1, the lower cover plate 3 is a negative pole of the battery 1, the temperature control device 4 comprises a temperature control unit 41 and five heat transfer units 42, and heat transfer media are arranged in the heat transfer units 42. In this embodiment, the temperature control unit 41 is a semiconductor refrigerator, the heat transfer unit 42 is a heat pipe, and the semiconductor refrigerator can dissipate heat of the heat pipe in time, so as to improve the safety of the battery. The heat transfer unit 42 is connected with the temperature control unit 41, and the heat transfer unit 42 is disposed between and in contact with the poles connecting the two batteries to perform heat exchange with the poles. The pole connecting surface is provided with a groove 5 for fixing the heat transfer unit 42, the section of the groove 5 is in a semi-ellipse shape, the width of the groove 5 is larger than that of the heat transfer unit 42, the height of the groove 5 is smaller than half of that of the heat transfer unit, and the sectional area of the groove 5 is larger than half of that of the heat transfer unit 42.
It should be noted that, in this embodiment, the cross section of the groove 5 is a semi-ellipse, the width of the groove 5 is greater than the diameter of the heat pipe, the height of the groove 5 is less than half of the diameter of the heat pipe, the sectional area of the groove 5 is greater than half of the sectional area of the heat pipe, when the battery post is connected, the groove 5 extrudes the heat pipe to deform the heat pipe, the contact area between the heat pipe and the post is increased, the heat dissipation effect is enhanced, the reliability of the structure is improved, and the battery performance stability is facilitated.
It should be noted that the groove 5 is in a straight shape, and may also be in other shapes, such as an S shape, a spiral shape, a wave shape, a U shape, and the like, which can increase the contact area between the heat pipe and the pole and enhance the heat dissipation effect.
All possible combinations of the technical features in the above embodiments may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a large capacity group battery with temperature control device, its characterized in that includes temperature control device and two at least batteries, the battery includes upper and lower apron, upper and lower apron is the positive, negative pole post of battery respectively, temperature control device includes at least one temperature control unit and at least one heat transfer unit, heat transfer unit with temperature control unit is connected, heat transfer unit sets up between the utmost point post that is connected two batteries and contacts with utmost point post to carry out the heat exchange with utmost point post.
2. A large capacity battery pack with temperature control device as claimed in claim 1, wherein the terminal connection face is provided with a groove for fixing the heat transfer unit.
3. The large-capacity battery pack having a temperature control device according to claim 2, wherein the section of the groove is rectangular.
4. The large-capacity battery pack having a temperature control device according to claim 3, wherein the heat transfer unit is a soaking plate.
5. The large capacity battery pack having a temperature control device as set forth in claim 2, wherein the section of the groove is a semi-elliptical shape.
6. The large-capacity battery pack having a temperature control device according to claim 5, wherein the heat transfer unit is a heat pipe.
7. The large-capacity battery pack having a temperature control assembly according to any one of claims 2 to 6, wherein the groove width is not less than the heat transfer unit width, the groove height is less than half of the heat transfer unit height, and the groove sectional area is not less than half of the heat transfer unit sectional area.
8. The large capacity battery pack having a temperature control device according to claim 1, wherein the temperature control unit is a semiconductor refrigerator.
9. A large-capacity battery pack having a temperature control device as set forth in claim 1, wherein a heat transfer medium is provided in said heat transfer unit.
10. A large-capacity battery pack having a temperature control device as set forth in claim 1, wherein said temperature control unit is connected to at least two of said heat transfer units, said heat transfer units are insulated from each other, and said heat transfer units are insulated from said temperature control unit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202210222490.4A CN114583352A (en) | 2022-03-09 | 2022-03-09 | Large-capacity battery pack with temperature control device |
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CN202210222490.4A CN114583352A (en) | 2022-03-09 | 2022-03-09 | Large-capacity battery pack with temperature control device |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024001896A1 (en) * | 2022-06-27 | 2024-01-04 | 陕西奥林波斯电力能源有限责任公司 | Battery temperature control system, high-capacity battery, battery pack, battery shell and heat exchange apparatus |
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2022
- 2022-03-09 CN CN202210222490.4A patent/CN114583352A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024001896A1 (en) * | 2022-06-27 | 2024-01-04 | 陕西奥林波斯电力能源有限责任公司 | Battery temperature control system, high-capacity battery, battery pack, battery shell and heat exchange apparatus |
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