CN115841889B - High-power rifle liquid cooling structure and rifle that charges - Google Patents
High-power rifle liquid cooling structure and rifle that charges Download PDFInfo
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- CN115841889B CN115841889B CN202310152630.XA CN202310152630A CN115841889B CN 115841889 B CN115841889 B CN 115841889B CN 202310152630 A CN202310152630 A CN 202310152630A CN 115841889 B CN115841889 B CN 115841889B
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
Abstract
The invention relates to the technical field of high-power charging piles used for new energy electric automobiles, in particular to a high-power charging gun liquid cooling structure and a charging gun, comprising a first radiating section and a second radiating section … … Nth radiating section arranged in a cable; acquiring a first temperature parameter T of a first heat dissipation section 1 Second temperature parameter T of second heat dissipation section 2 … … Nth temperature parameter T of Nth radiating section N When the first temperature parameter T 1 Second temperature parameter T 2 … … Nth temperature parameter T N When any one of the temperature parameters is larger than a first preset value, marking the temperature parameter as an abnormal section, and filling gas into the first inflation modules in all the other radiating sections except the abnormal section. According to the high-power charging gun liquid cooling structure and the charging gun, the cooling structure enables the temperature of each heat dissipation section to be basically consistent during normal cooling; when an abnormal section occurs, the cooling effect is ensured to be concentrated on the abnormal section, the cooling capacity is further improved, and the probability of risk occurrence is reduced.
Description
Technical Field
The invention relates to the technical field of high-power charging piles used for new energy electric automobiles, in particular to a high-power charging gun liquid cooling structure and a charging gun.
Background
With the disappearance of fuel vehicles, the gas stations accompanying them will also complete their historical life, and instead will be charging stations throughout the country, the hardware facilities of which will be the high-power charging piles in the future. At present, the charging of the electric bus is not carried out by a medium-power charging pile, and the technical parameters of the medium-power charging pile are as follows: the DC voltage is 750V, and the output current is 250A. And the new energy bus is charged by medium power, three hours are needed for charging the storage battery of one new energy bus, the time is long, and the efficiency is low. The technical parameters of the high-power charging pile are being developed in China: the direct current voltage is 1000-1500V, and the output current is 600A. The high-power charging pile is used for charging the new energy bus, and the charging time of one new energy bus for charging the full storage battery is only 15 minutes or less.
At present, a power supply of the medium-power charging pile is connected with a charging gun by using a dry type integrated cable. Unlike the common cable, the dry integrated cable has two 70 square millimeter power lines DC+ and DC-and one 25 square millimeter ground line, and ten or more signal lines. The cable length is typically between 6 meters and 10 meters, and such dry integrated cable carries a maximum current of 250 amps. The high-power charging pile cannot use the dry type integrated cable, and the dry type integrated cable cannot bear 600 amperes of working current. There are two cases for solving this problem: one is to enlarge the sectional area of the soft wire; the other scheme is that the sectional area of the soft wire is not increased, but the sectional area of the soft wire is properly reduced to make a spot space which is used as a flow channel of cooling liquid, and the soft wire is cooled in a liquid cooling mode, so that the soft wire can bear 600 amperes of high current.
The optical fiber temperature measurement technology is applied to the monitoring of the operation temperature of a power cable, is a real-time, online and multi-point optical fiber temperature measurement technology, can monitor a space temperature field in real time, can continuously measure measuring points along the optical fiber in real time, and is resistant to electromagnetic interference.
The existing high-power charging pile cools the whole cable, but the cable still can generate local heat, and the problem of the phenomenon is difficult to solve or adapt to in the prior art.
Disclosure of Invention
Accordingly, it is necessary to provide a high-power charging gun liquid cooling structure and a charging gun for solving the problems of the conventional charging gun cable.
The above purpose is achieved by the following technical scheme:
a high power charge gun liquid cooling structure comprising:
the cable is internally provided with a first heat dissipation section and a second heat dissipation section … … Nth heat dissipation section;
step S100, obtaining a first temperature parameter T of the first heat dissipation section 1 A second temperature parameter T of the second heat dissipation section 2 … … the N temperature parameter T of the N heat dissipation segment N ；
Step S200, judging the first temperature parameter T 1 Judging whether the temperature is larger than a first preset value or not and judging the second temperature parameter T 2 Judging whether the Nth temperature parameter T is larger than a first preset value … … N Whether the value is larger than a first preset value;
step S300, when the first temperature parameter T 1 Said second temperature parameter T 2 … … the Nth temperature parameter T N When any one of the temperature parameters is larger than the first preset value, marking the temperature parameter as an abnormal section;
step S310, filling gas into the first inflation modules in all the other heat dissipation sections except the abnormal section;
step S311, filling the cooling liquid into the cable.
In one embodiment, after step S311, the method further includes:
step S320, when the first temperature parameter T 1 Said second temperature parameter T 2 … … the Nth temperature parameter T N And when all the temperature parameters are smaller than a second preset value, exhausting the gas filled in the first air filling modules in all the heat dissipation sections.
In one embodiment, after step S320, the method further includes:
step S330, when the first temperature parameter T 1 Said second temperature parameter T 2 … … the Nth temperature parameter T N When any one of the temperature parameters is larger than a second preset value, alarming.
In one embodiment, after step S300, the method further includes:
step S400, when the first temperature parameter T 1 Said second temperature parameter T 2 … … the Nth temperature parameter T N When all the temperature parameters are larger than a third preset value and smaller than a second preset value, calculating the first temperature parameter T 1 And a fourth preset value, the second temperature parameter T 2 Difference … … between the fourth preset value and the nth temperature parameter T N And an average value of the difference values of the fourth preset value;
step S401, according to the first temperature parameter T 1 And the difference value of the fourth preset value, the second temperature parameter T 2 Difference … … between the fourth preset value and the nth temperature parameter T N And calculating the required flow of the cooling liquid according to the average value of the difference values of the fourth preset value.
In one embodiment, after step S401, the method further includes:
step S402, according to the first temperature parameter T 1 And the difference value of the fourth preset value, the second temperature parameter T 2 Difference … … between the fourth preset value and the nth temperature parameter T N Determining the heat dissipation grade of each heat dissipation section in the order from small to large of the difference value of the fourth preset value;
in step S403, the amount of gas filled in the second inflation module in each heat dissipation segment is positively correlated with the heat dissipation level of each heat dissipation segment.
The invention also provides a charging gun, comprising:
the cable is internally provided with a first heat dissipation section and a second heat dissipation section … … Nth heat dissipation section;
a first inflation module and a second inflation module are arranged in the first heat dissipation section, the second heat dissipation section … … and the Nth heat dissipation section;
a first obtaining module for obtaining a first temperature parameter T of the first heat dissipation section 1 A second temperature parameter T of the second heat dissipation section 2 … … the N temperature parameter T of the N heat dissipation segment N ；
A first judging module for judging the first temperature parameter T 1 Whether the value is larger than a first preset value; judging the second temperature parameter T 2 Judging whether the Nth temperature parameter T is larger than a first preset value … … N Whether the value is larger than a first preset value;
a first execution module for executing the first temperature parameter T 1 Said second temperature parameter T 2 … … the Nth temperature parameter T N When any one of the temperature parameters is larger than the first preset value, marking the temperature parameter as an abnormal section;
the first execution unit is used for filling gas into the first inflation modules in all the other heat dissipation sections except the abnormal section;
and the second execution unit is used for filling cooling liquid into the cable.
In one embodiment, the method comprises the steps of:
a third execution unit for executing, when the first temperature parameter T 1 Said second temperature parameter T 2 … … the Nth temperature parameter T N And when all the temperature parameters are smaller than a second preset value, exhausting the gas filled in the first air filling modules in all the heat dissipation sections.
In one embodiment, the method comprises the steps of:
a fourth execution unit for executing the first temperature parameter T 1 Said second temperature parameter T 2 … … the Nth temperature parameter T N When any one of the temperature parameters is larger than a second preset value, alarming.
In one embodiment, the method comprises the steps of:
a second execution module for executing, when the first temperature parameter T 1 Said second temperature parameter T 2 … … the Nth temperature parameter T N When all the temperature parameters are larger than a third preset value and smaller than a second preset value, calculating the first temperature parameter T 1 And a fourth preset value, the second temperature parameter T 2 Difference … … between the fourth preset value and the nth temperature parameter T N And an average value of the difference values of the fourth preset value;
a fifth execution unit for executing the first temperature parameter T 1 And the difference value of the fourth preset value, the second temperature parameter T 2 Difference … … between the fourth preset value and the nth temperature parameter T N And calculating the required flow of the cooling liquid according to the average value of the difference values of the fourth preset value.
In one embodiment, the method comprises the steps of:
a sixth execution unit for executing the first temperature parameter T 1 And the difference value of the fourth preset value, the second temperature parameter T 2 Difference … … between the fourth preset value and the nth temperature parameter T N Determining the heat dissipation grade of each heat dissipation section in the order from small to large of the difference value of the fourth preset value;
and the seventh execution unit is used for positively correlating the quantity of gas filled in the second inflation module in each heat dissipation section with the heat dissipation grade of each heat dissipation section.
The beneficial effects of the invention are as follows:
the invention relates to a liquid cooling structure of a high-power charging gun and the charging gun, which comprises a first radiating section and a second radiating section … … Nth radiating section arranged in a cable; acquiring a first temperature parameter T of a first heat dissipation section 1 Second temperature parameter T of second heat dissipation section 2 … … Nth temperature parameter T of Nth radiating section N Judging the first temperature parameter T 1 Judging whether the temperature is larger than a first preset value or not and judging a second temperature parameter T 2 Judging whether the Nth temperature parameter T is larger than a first preset value … … N Whether greater than a first preset value, when the first temperature parameter T 1 Second temperature parameter T 2 … … Nth temperature parameter T N When any one of the temperature parameters is larger than a first preset value, marking the temperature parameter as an abnormal section, filling gas into the first inflation modules in all the other heat dissipation sections except the abnormal section, and filling cooling liquid into the cable. According to the high-power charging gun liquid cooling structure and the charging gun, the heat dissipation grade of each heat dissipation section can be defined during normal cooling, and the temperature of each heat dissipation section is basically kept consistent through the cooling structure; when an abnormal section occurs, the cooling effect is ensured to be concentrated on the abnormal section through the contact of the gas isolated cooling loop and the heat dissipation section, so that the cooling capacity is further improved and the probability of risk occurrence is reduced.
Drawings
FIG. 1 is a schematic flow diagram of a liquid cooling structure of a high-power charging gun according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a liquid cooling structure of a high-power charging gun and a three-dimensional structure of a charging gun and cable connection of the charging gun according to an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating a liquid cooling structure of a high-power charging gun and a cable of the charging gun according to an embodiment of the present invention;
FIG. 4 is a schematic diagram showing a cross-sectional structure of a liquid cooling structure of a high-power charging gun and a cable of the charging gun according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a cross-sectional structure of a liquid cooling structure of a high-power charging gun and a cable of the charging gun according to an embodiment of the invention;
fig. 6 is a schematic perspective view of a liquid cooling structure of a high-power charging gun and a cable with an insulation sheath removed from the charging gun according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of an explosion structure of a high-power charging gun liquid cooling structure and a cable with an insulation sheath removed for the charging gun according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a liquid cooling structure of the high-power charging gun and a partial enlarged structure of a portion a of a cable of the charging gun, which is removed of an insulating sheath, shown in fig. 7.
Wherein:
100. a charging gun;
200. a cable; 210. an insulating sheath; 220. a first air bag; 221. a first balloon first section; 222. a first balloon second section; 223. a first bladder third section; 230. a liquid-cooled tube; 231. a refrigerant inflow pipe; 232. a refrigerant outflow pipe; 233. a line fixing hole; 240. a second air bag; 241. a second bladder first section; 242. a second bladder second section; 243. a second bladder third section; 251. a first wire; 252. a first temperature sensing optical fiber; 253. a second wire; 254. and the second temperature sensing optical fiber.
Detailed Description
The present invention will be further described in detail below with reference to examples, which are provided to illustrate the objects, technical solutions and advantages of the present invention. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The numbering of components herein, such as "first," "second," etc., is used merely to distinguish between the described objects and does not have any sequential or technical meaning. The terms "coupled" and "connected," as used herein, are intended to encompass both direct and indirect coupling (coupling), unless otherwise indicated. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
According to the high-power charging gun liquid cooling structure and the charging gun, the heat dissipation grade of each heat dissipation section can be defined during normal cooling, and the temperature of each heat dissipation section is basically kept consistent through the cooling structure; when an abnormal section occurs, the cooling effect is ensured to be concentrated on the abnormal section through the contact of the gas isolated cooling loop and the heat dissipation section, so that the cooling capacity is further improved and the probability of risk occurrence is reduced.
As shown in fig. 1, fig. 1 is a schematic flow structure diagram of a liquid cooling structure of a high-power charging gun according to an embodiment of the present invention, including:
the cable is internally provided with a first heat dissipation section and a second heat dissipation section … … Nth heat dissipation section;
the cable is uniformly divided into N sections, which are sequentially named as a first radiating section and a second radiating section … … Nth radiating section.
Step S100, obtaining a first temperature parameter T of the first heat dissipation section 1 A second temperature parameter T of the second heat dissipation section 2 … … the N temperature parameter T of the N heat dissipation segment N ；
Acquiring a first temperature parameter T of a first heat dissipation section in real time through a temperature sensing optical fiber 1 Second temperature parameter T of second heat dissipation section 2 … … Nth temperature parameter T of Nth radiating section N 。
First temperature parameter T 1 The second temperature parameter T is the average temperature value of the first heat dissipation section 2 An nth temperature parameter T which is the average temperature value … … of the second heat dissipation section N Is the average temperature value of the Nth heat dissipation segment.
Step S200, judging the first temperature parameter T 1 Judging whether the temperature is larger than a first preset value or not and judging the second temperature parameter T 2 Judging whether the Nth temperature parameter T is larger than a first preset value … … N Whether the value is larger than a first preset value;
the first preset value is a set temperature value.
Step S300, when the first temperature parameter T 1 Said second temperature parameter T 2 … … the Nth temperature parameter T N When any one of the temperature parameters is larger than the first preset value, marking the temperature parameter as an abnormal section;
when the first temperature parameter T 1 Second temperature parameter T 2 … … Nth temperature parameter T N When any one of the temperature parameters is larger than a first preset value, the temperature abnormality of the heat dissipation section corresponding to the temperature parameter is indicated, the heat dissipation section is required to be cooled, and the heat dissipation section is marked as an abnormal section.
Step S310, filling gas into the first inflation modules in all the other heat dissipation sections except the abnormal section;
and the first air charging modules in all the other heat dissipation sections except the abnormal section are charged with air, and the cooling effect is ensured to be concentrated in the abnormal section by contacting the air-isolated cooling loop with the normal heat dissipation section, so that the cooling capacity is further improved, and the probability of risk occurrence is reduced.
Step S311, filling the cooling liquid into the cable.
And (5) filling cooling liquid into the cable to rapidly cool the abnormal section.
In another embodiment of the present invention, after step S311, the method further includes:
step S320, when the first temperature parameter T 1 Said second temperature parameter T 2 … … the Nth temperature parameter T N And when all the temperature parameters are smaller than a second preset value, exhausting the gas filled in the first air filling modules in all the heat dissipation sections.
The second preset value is a set temperature threshold value, the second preset value is smaller than the first preset value, and when the temperature parameter is smaller than the second preset value, the heat dissipation section is considered to work normally.
When the first temperature parameter T 1 Second temperature parameter T 2 … … Nth temperature parameter T N When all the temperature parameters in the cooling section are smaller than the second preset value, the cooling section is indicated to work normally, and at the moment, the gas filled in the first inflation module in all the cooling section is discharged, so that subsequent adjustment is facilitated.
In another embodiment of the present invention, after step S320, the method further includes:
step S330, when the first temperature parameter T 1 Said second temperature parameter T 2 … … the Nth temperature parameter T N And alarming when any one of the temperature parameters is larger than the second preset value.
After the abnormal section is intensively cooled, when the first temperature parameter T 1 Second temperature parameter T 2 … … Nth temperature parameter T N When any one of the temperature parameters is still larger than a second preset value, the abnormal charging operation is indicated, and the alarm is given at the moment, so that the maintenance is convenient.
In another embodiment of the present invention, after step S300, the method further includes:
step S400, when the first temperature parameter T 1 Said second temperature parameter T 2 … … the Nth temperature parameter T N When all the temperature parameters are larger than a third preset value and smaller than the second preset value, calculating the first temperature parameter T 1 And a fourth preset value, the second temperature parameter T 2 Difference … … between the fourth preset value and the nth temperature parameter T N And an average value of the difference values of the fourth preset value;
the third preset value is a set temperature value, the third preset value is smaller than the second preset value, and when the temperature parameter is larger than the third preset value and smaller than the second preset value, the charging gun is considered to be normally charged; the fourth preset value is the temperature of the heat dissipation section in normal operation under the theoretical condition, the fourth preset value is larger than the third preset value, and the fourth preset value is smaller than the second preset value.
When the first temperature parameter T 1 Second temperature parameter T 2 … … Nth temperature parameter T N When all the temperature parameters are larger than the third preset value and smaller than the second preset value, calculating the first temperature parameter T 1 And a difference value of a fourth preset value, a second temperature parameter T 2 Difference … … between the first and fourth preset values and the nth temperature parameter T N And an average value of the difference values of the fourth preset value.
When the difference between the temperature parameter and the fourth preset value is less than 0, the average value is not counted.
Step S401, according to the first temperature parameter T 1 And the difference value of the fourth preset value, the second temperature parameter T 2 Difference … … between the fourth preset value and the nth temperature parameter T N And calculating the required flow of the cooling liquid according to the average value of the difference values of the fourth preset value.
According to the first temperature parameter T 1 And a difference value of a fourth preset value, a second temperature parameter T 2 Difference … … between the first and fourth preset values and the nth temperature parameter T N And calculating the required coolant flow by the average value of the difference values of the fourth preset value.
First temperature parameter T 1 And a difference value of a fourth preset value, a second temperature parameter T 2 Difference … … between the first and fourth preset values and the nth temperature parameter T N The larger the average value of the difference with the fourth preset value, the larger the flow rate of the required cooling liquid.
In another embodiment of the present invention, after step S401, the method further includes:
step S402, according to the first temperature parameter T 1 And said fourth pre-stageDifference of the set values, the second temperature parameter T 2 Difference … … between the fourth preset value and the nth temperature parameter T N Determining the heat dissipation grade of each heat dissipation section in the order from small to large of the difference value of the fourth preset value;
according to the first temperature parameter T 1 And a difference value of a fourth preset value, a second temperature parameter T 2 Difference … … between the first and fourth preset values and the nth temperature parameter T N And determining the heat dissipation level of each heat dissipation section in the order from small difference value to large difference value of the fourth preset value.
The larger the difference value between the temperature parameter and the fourth preset value is, the larger the required cold quantity of the heat dissipation section is, and the higher the heat dissipation grade of the heat dissipation section is; and when the difference between the temperature parameter and the fourth preset value is smaller than 0, the division of the heat dissipation level is not counted.
In step S403, the amount of gas filled in the second inflation module in each heat dissipation segment is positively correlated with the heat dissipation level of each heat dissipation segment.
The amount of gas filled in the second inflation module in each heat dissipation section is positively correlated with the heat dissipation level of each heat dissipation section; the higher the heat dissipation level of the heat dissipation section is, the more the gas quantity filled in the second air charging module in the heat dissipation section is, the faster the flow speed of the cooling liquid in the heat dissipation section is, and the higher the heat exchange efficiency is; the lower the heat dissipation level of the heat dissipation section is, the smaller the amount of gas filled in the second inflation module in the heat dissipation section is, the slower the flow speed of the cooling liquid in the heat dissipation section is, and the lower the heat exchange efficiency is; so that the temperature of each heat-radiating section is kept basically consistent.
For the heat dissipation section with the difference value between the temperature parameter and the fourth preset value smaller than 0, the current situation can be maintained, and gas can be filled into the first inflation module on the heat dissipation section, so that heat exchange between the heat dissipation section and cooling liquid is reduced.
As shown in fig. 2 to 8, the present invention further provides a charging gun, and the liquid cooling structure of the high-power charging gun includes:
the charging gun 100 and the cable 200, the cable 200 is used for supplying power to the charging gun 100, and the charging gun 100 is used for charging the new energy automobile.
In this embodiment, N is equal to three, i.e. the cable 200 is uniformly divided into three sections, which are sequentially named as a first heat dissipation section, a second heat dissipation section, and a third heat dissipation section.
The cable 200 includes an insulating sheath 210, a first balloon 220, a liquid-cooled tube 230, a second balloon 240, a first conductor 251, a first temperature-sensing optical fiber 252, a second conductor 253, and a second temperature-sensing optical fiber 254; the insulating sheath 210 wraps the first balloon 220, the liquid cooling tube 230, the second balloon 240, the first lead 251, the first temperature sensing optical fiber 252, the second lead 253 and the second temperature sensing optical fiber 254; the first conductive line 251 and the second conductive line 253 are both used for conducting electricity; the first temperature sensing optical fibers 252 are arranged between the first wires 251 at intervals and are used for sensing the temperature of the first wires 251; the second temperature sensing optical fibers 254 are arranged between the second wires 253 at intervals and are used for sensing the temperature of the second wires 253; the first balloon 220 includes a first balloon first section 221, a first balloon second section 222, and a first balloon third section 223; the second bladder 240 includes a second bladder first section 241, a second bladder second section 242, and a second bladder third section 243; the liquid cooling pipe 230 includes a refrigerant inflow pipe 231, a refrigerant outflow pipe 232, and a line fixing hole 233, and the cooling liquid flows in from the refrigerant inflow pipe 231 and then flows out from the refrigerant outflow pipe 232.
The insulating sheath 210, the second balloon 240, the refrigerant inflow pipe 231, the first balloon 220, the first and second wires 251 and 253, and the refrigerant outflow pipe 232 are sequentially arranged from outside to inside along the radial direction of the insulating sheath 210.
A first air bag first section 221 and a second air bag first section 241 are arranged in the first heat dissipation section; the second heat dissipation section is internally provided with a first air bag second section 222 and a second air bag second section 242; the third heat dissipation section is provided with a first air bag third section 223 and a second air bag third section 243.
In combination with the above embodiment, the use principle and working process of the embodiment of the present invention are as follows:
sensing the temperature of the first wire 251 in real time through the first temperature sensing optical fiber 252, and sensing the temperature of the second wire 253 in real time through the second temperature sensing optical fiber 254; first temperature parameter T 1 The second temperature parameter T is the average temperature value sensed by the first temperature sensing optical fiber 252 and the second temperature sensing optical fiber 254 in the first heat dissipation section 2 The third temperature parameter T is the average temperature value sensed by the first temperature sensing optical fiber 252 and the second temperature sensing optical fiber 254 in the second heat dissipation section 3 The average temperature value sensed by the first temperature sensing optical fiber 252 and the second temperature sensing optical fiber 254 in the third heat dissipation section.
When the first temperature parameter T 1 Second temperature parameter T 2 Third temperature parameter T 3 When any one of the temperature parameters is larger than a first preset value, marking the temperature parameter as an abnormal section; assuming a second temperature parameter T 2 Is larger than a first preset value, and a first temperature parameter T 1 And a third temperature parameter T 3 The first air bag first section 221 and the first air bag third section 223 are inflated by the air pump and are contacted with the first heat dissipation section and the third heat dissipation section by the air isolation cooling loop; the liquid pump is used for injecting cooling liquid into the refrigerant inflow pipeline 231, the cooling liquid can exchange heat normally when flowing through the second heat dissipation section, and the cooling liquid can not exchange heat when flowing through the first heat dissipation section and the third heat dissipation section, so that the cooling effect is concentrated in the abnormal section, namely the second heat dissipation section, the cooling capacity is further improved, and the probability of risk occurrence is reduced.
After cooling, when the first temperature parameter T 1 Second temperature parameter T 2 And a third temperature parameter T 3 When all the temperature parameters in the first section 221, the second section 222 and the third section 223 are smaller than the second preset value, the gas in the first section 221, the second section 222 and the third section 223 is discharged, so that the subsequent adjustment is facilitated.
After cooling, when the first temperature parameter T 1 Second temperature parameter T 2 And a third temperature parameter T 3 When any one of the temperature parameters is still larger than a second preset value, the abnormal charging operation is indicated, and the alarm is given at the moment, so that the maintenance is convenient.
When the first temperature parameter T 1 Second temperature parameter T 2 Third temperature parameter T 3 When all the temperature parameters are larger than the third preset value and smaller than the second preset value, calculating the first temperature parameter T 1 And a difference value of a fourth preset value, a second temperature parameter T 2 Difference from the fourth preset value, a third temperature parameter T 3 And a fourth presetAnd calculating the required flow rate of the cooling liquid according to the average value of the difference values.
According to the first temperature parameter T 1 And a difference value of a fourth preset value, a second temperature parameter T 2 Difference from the fourth preset value, a third temperature parameter T 3 And determining the heat dissipation level of each heat dissipation section in the order from small difference value to large difference value of the fourth preset value.
Assuming that the heat dissipation level is that the third heat dissipation section is greater than the second heat dissipation section and greater than the first heat dissipation section, the amount of gas filled into the third section 243 of the second air bag by the air pump is greater than the amount of gas filled into the second section 242 of the second air bag and greater than the amount of gas filled into the first section 241 of the second air bag, so that the flow rate of the cooling liquid in the cooling medium inflow pipeline 231 is that the third heat dissipation section is greater than the second heat dissipation section and greater than the first heat dissipation section, and the temperature of each heat dissipation section is basically kept consistent.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. The utility model provides a high-power rifle liquid cooling structure that charges which characterized in that includes:
the cable is internally provided with a first heat dissipation section and a second heat dissipation section … … Nth heat dissipation section;
step S100, obtaining a first temperature parameter T of the first heat dissipation section 1 A second temperature parameter T of the second heat dissipation section 2 … … the N temperature of the N heat dissipation segmentDegree parameter T N ；
Step S200, judging the first temperature parameter T 1 Judging whether the temperature is larger than a first preset value or not and judging the second temperature parameter T 2 Judging whether the Nth temperature parameter T is larger than a first preset value … … N Whether the value is larger than a first preset value;
step S300, when the first temperature parameter T 1 Said second temperature parameter T 2 … … the Nth temperature parameter T N When any one of the temperature parameters is larger than the first preset value, marking the temperature parameter as an abnormal section;
step S310, filling gas into the first inflation modules in all the other heat dissipation sections except the abnormal section;
step S311, filling the cooling liquid into the cable.
2. The high power charge gun liquid cooling structure of claim 1, further comprising, after step S311:
step S320, when the first temperature parameter T 1 Said second temperature parameter T 2 … … the Nth temperature parameter T N When all the temperature parameters are smaller than a second preset value, exhausting the gas filled in the first air filling modules in all the heat dissipation sections;
the second preset value is smaller than the first preset value.
3. The high power charge gun liquid cooling structure of claim 1, further comprising, after step S311:
step S330, when the first temperature parameter T 1 Said second temperature parameter T 2 … … the Nth temperature parameter T N When any one of the temperature parameters is larger than a second preset value, alarming;
the second preset value is smaller than the first preset value.
4. The high power charge gun liquid cooling structure of claim 1, further comprising, after step S300:
step S400, when the first temperature parameter T 1 Said second temperature parameter T 2 … … the Nth temperature parameter T N When all the temperature parameters are larger than a third preset value and smaller than a second preset value, calculating the first temperature parameter T 1 And a fourth preset value, the second temperature parameter T 2 Difference … … between the fourth preset value and the nth temperature parameter T N And an average value of the difference values of the fourth preset value;
step S401, according to the first temperature parameter T 1 And the difference value of the fourth preset value, the second temperature parameter T 2 Difference … … between the fourth preset value and the nth temperature parameter T N Calculating the required flow of the cooling liquid according to the average value of the difference values of the fourth preset value;
the second preset value is smaller than the first preset value; the third preset value is smaller than the second preset value; the fourth preset value is greater than the third preset value, and the fourth preset value is less than the second preset value.
5. The high power charge gun liquid cooling structure of claim 4, further comprising, after step S401:
step S402, according to the first temperature parameter T 1 And the difference value of the fourth preset value, the second temperature parameter T 2 Difference … … between the fourth preset value and the nth temperature parameter T N Determining the heat dissipation grade of each heat dissipation section in the order from small to large of the difference value of the fourth preset value;
in step S403, the amount of gas filled in the second inflation module in each heat dissipation segment is positively correlated with the heat dissipation level of each heat dissipation segment.
6. A charging gun, characterized in that the charging gun adopts the high-power charging gun liquid cooling structure in claim 1, comprising:
the cable is internally provided with a first heat dissipation section and a second heat dissipation section … … Nth heat dissipation section;
a first inflation module and a second inflation module are arranged in the first heat dissipation section, the second heat dissipation section … … and the Nth heat dissipation section;
a first obtaining module for obtaining a first temperature parameter T of the first heat dissipation section 1 A second temperature parameter T of the second heat dissipation section 2 … … the N temperature parameter T of the N heat dissipation segment N ；
A first judging module for judging the first temperature parameter T 1 Whether the value is larger than a first preset value; judging the second temperature parameter T 2 Judging whether the Nth temperature parameter T is larger than a first preset value … … N Whether the value is larger than a first preset value;
a first execution module for executing the first temperature parameter T 1 Said second temperature parameter T 2 … … the Nth temperature parameter T N When any one of the temperature parameters is larger than the first preset value, marking the temperature parameter as an abnormal section;
the first execution unit is used for filling gas into the first inflation modules in all the other heat dissipation sections except the abnormal section;
and the second execution unit is used for filling cooling liquid into the cable.
7. The charging gun of claim 6, comprising:
a third execution unit for executing, when the first temperature parameter T 1 Said second temperature parameter T 2 … … the Nth temperature parameter T N When all the temperature parameters are smaller than a second preset value, exhausting the gas filled in the first air filling modules in all the heat dissipation sections;
the second preset value is smaller than the first preset value.
8. The charging gun of claim 6, comprising:
a fourth execution unit for executing the first temperature parameter T 1 Said second temperature parameter T 2 … … the Nth temperature parameter T N When any one of the temperature parameters is larger than a second preset value, alarming;
the second preset value is smaller than the first preset value.
9. The charging gun of claim 6, comprising:
a second execution module for executing, when the first temperature parameter T 1 Said second temperature parameter T 2 … … the Nth temperature parameter T N When all the temperature parameters are larger than a third preset value and smaller than a second preset value, calculating the first temperature parameter T 1 And a fourth preset value, the second temperature parameter T 2 Difference … … between the fourth preset value and the nth temperature parameter T N And an average value of the difference values of the fourth preset value;
a fifth execution unit for executing the first temperature parameter T 1 And the difference value of the fourth preset value, the second temperature parameter T 2 Difference … … between the fourth preset value and the nth temperature parameter T N Calculating the required flow of the cooling liquid according to the average value of the difference values of the fourth preset value;
the second preset value is smaller than the first preset value; the third preset value is smaller than the second preset value; the fourth preset value is greater than the third preset value, and the fourth preset value is less than the second preset value.
10. The charging gun of claim 9, comprising:
a sixth execution unit for executing the first temperature parameter T 1 And the difference value of the fourth preset value, the second temperature parameter T 2 Difference … … between the fourth preset value and the nth temperature parameter T N Determining the heat dissipation grade of each heat dissipation section in the order from small to large of the difference value of the fourth preset value;
and the seventh execution unit is used for positively correlating the quantity of gas filled in the second inflation module in each heat dissipation section with the heat dissipation grade of each heat dissipation section.
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| CN111016707A (en) * | 2020-01-06 | 2020-04-17 | 四川永贵科技有限公司 | Liquid-cooling large-current charging system of electric automobile and control method thereof |
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| JPH10321055A (en) * | 1997-05-23 | 1998-12-04 | Hitachi Plant Eng & Constr Co Ltd | Electric wire cooling device |
| CN107933340A (en) * | 2017-11-06 | 2018-04-20 | 深圳市沃尔新能源电气科技股份有限公司 | The cold high power charging device of liquid and its monitoring method |
| WO2019192249A1 (en) * | 2018-04-02 | 2019-10-10 | 东莞市趣电智能科技有限公司 | Charging gun having excellent heat conduction and dissipation performance |
| CN110239383A (en) * | 2019-05-31 | 2019-09-17 | 南京康尼机电股份有限公司 | The high-power charging cooling system of new-energy automobile and its monitoring method |
| CN113335103B (en) * | 2021-06-02 | 2022-06-17 | 上海艾姆倍新能源科技有限公司 | High-power charging pile cooling system and temperature control method |
| CN115566322B (en) * | 2022-11-24 | 2023-04-21 | 连云港鸿云实业有限公司 | Device for cooling battery pack and control method |
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