CN111391684A - Air cooling heat dissipation refined monitoring device and method for direct current charging pile - Google Patents
Air cooling heat dissipation refined monitoring device and method for direct current charging pile Download PDFInfo
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- CN111391684A CN111391684A CN202010276576.6A CN202010276576A CN111391684A CN 111391684 A CN111391684 A CN 111391684A CN 202010276576 A CN202010276576 A CN 202010276576A CN 111391684 A CN111391684 A CN 111391684A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/302—Cooling of charging equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
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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
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention provides a device and a method for finely monitoring air cooling and heat dissipation of a direct-current charging pile.
Description
Technical Field
The invention relates to the technical field of electric vehicle charging piles, in particular to a direct current charging pile air cooling heat dissipation fine monitoring device and method.
Background
The inside module of charging of direct current charging stake can produce a large amount of heats at the during operation. If the heat is not timely discharged out of the cabinet, the performance of the charging module is reduced when the charging module operates at high temperature for a long time, and the energy consumption is increased. Although the heat dissipation systems are installed in the charging piles in the existing market, when the system works, the heat dissipation fans all run at full speed, dynamic adjustment according to the temperature of the charging module cannot be achieved, and the purposes of energy conservation and emission reduction are achieved. Simultaneously along with fill the time increase of electric pile operation, the accumulation of on-the-spot dust, the jam of air outlet leads to cooling fan rotor at the pressurized operation, and the rotational speed reduces, and long-time pressurized operation back can lead to cooling fan's damage, needs regularly to patrol and examine just discovery.
Disclosure of Invention
The invention aims to provide a direct-current charging pile air-cooling heat dissipation refined monitoring device and method, and aims to solve the problem that a cooling fan in the prior art cannot be dynamically adjusted according to the temperature of a charging module, achieve dynamic adjustment of the rotating speed of the cooling fan according to the temperature, save energy, reduce emission, avoid regular inspection and reduce labor cost.
In order to achieve the technical purpose, the invention provides a direct current charging pile air cooling heat dissipation refined monitoring device, which comprises:
the air conditioner comprises a cooling fan, an air quantity sensor, a charging module, an air cooling control plate, a first temperature sensor and a second temperature sensor;
the cooling fan is arranged at the air outlet of the charging pile, the air quantity sensor is arranged at the cooling fan, the first temperature sensor is arranged at the position of the charging module, and the second temperature sensor is arranged at the position of the air inlet of the charging pile;
the air cooling control panel is electrically connected with the cooling fan, the air quantity sensor, the first temperature sensor and the second temperature sensor.
Preferably, the air-cooled control panel collects temperature information of the first temperature sensor and the second temperature sensor through an AD (analog-digital) collecting channel.
Preferably, the air cooling control panel is communicated with the air volume sensor through RS 485.
The invention also provides a direct current charging pile air cooling heat dissipation fine monitoring method realized by using the monitoring device, which comprises the following operations:
acquiring the temperature difference between the position of an air inlet of a charging pile and the position of a charging module;
when the temperature difference equals 5 degrees centigrade, the PWM wave is controlled to control the heat dissipation fan to dissipate heat with 50% duty ratio, when the temperature difference is greater than 5 degrees centigrade, the PWM duty ratio is correspondingly increased by 2.5% when the temperature is increased by 1 degree centigrade, and when the temperature reaches 20 degrees centigrade, the PWM duty ratio is set to 100%.
Preferably, the method further comprises:
when the PWM of the air cooling control panel is output, recording the rotating speed of the corresponding heat dissipation fan under the current PWM duty ratio to set the wind speed, and acquiring the actual wind speed through the wind sensor;
and comparing the set wind speed with the actual wind speed, if the actual wind speed is within the range of 90% -100% of the set wind speed, judging that the heat dissipation fan is normal, if the actual wind speed is within the range of 50% -90% of the set wind speed, judging that the air outlet is blocked, and if the actual wind speed is below 50% of the set wind speed, judging that the heat dissipation fan is in fault.
Preferably, the method further comprises:
in the operation process, the operation state of the cooling fan and whether the air outlet is blocked are fed back to the charging pile control unit through CAN communication in real time, and the charging pile control unit feeds back the information to the charging pile background operation and maintenance system through a network.
The effect provided in the summary of the invention is only the effect of the embodiment, not all the effects of the invention, and one of the above technical solutions has the following advantages or beneficial effects:
compared with the prior art, the invention monitors the temperature difference between the air inlet temperature and the charging module in real time, outputs PWM with different duty ratios according to the temperature difference state to control the air speed of the cooling fan to perform cooling so as to achieve the purposes of energy saving and emission reduction, monitors the actual air speed of the charging pile through the air quantity sensor, compares the actual air speed with the set air speed and judges the actual running state of the cooling fan, so that when the air outlet is blocked or the cooling fan is damaged, operation and maintenance personnel can be timely informed to perform field maintenance, the occurrence of safety accidents is avoided, the traditional regular inspection mode is changed, and the labor cost is reduced.
Drawings
Fig. 1 is a structural diagram of a direct current charging pile air-cooling heat dissipation fine monitoring device provided in an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a refined monitoring principle of air cooling heat dissipation of a dc charging pile according to an embodiment of the present invention;
in the figure, 1-charging pile air outlet, 2-cooling fan, 3-air quantity sensor, 4-first temperature sensor, 5-charging module, 6-second temperature sensor and 7-charging pile air inlet.
Detailed Description
In order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and procedures are omitted so as to not unnecessarily limit the invention.
The following describes a detailed monitoring device and method for air cooling and heat dissipation of a dc charging pile according to an embodiment of the present invention in detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, the invention discloses a direct current charging pile air cooling heat dissipation refined monitoring device, which comprises:
the air conditioner comprises a cooling fan, an air quantity sensor, a charging module, a first temperature sensor and a second temperature sensor;
the cooling fan is arranged at the air outlet of the charging pile, the air quantity sensor is arranged at the cooling fan, the first temperature sensor is arranged at the position of the charging module, and the second temperature sensor is arranged at the position of the air inlet of the charging pile;
the air cooling control panel is electrically connected with the cooling fan, the air quantity sensor, the first temperature sensor and the second temperature sensor.
The temperature of a charging module is measured by arranging a first temperature sensor at the position of the charging module of the charging pile, the temperature of an air inlet is measured by arranging a second temperature sensor at the position of the air inlet of the charging pile, the temperatures of the first temperature sensor and the second temperature sensor are respectively collected through an AD sampling channel by an air cooling control board in the charging pile, the temperature difference between the air inlet temperature and the charging module is monitored in real time, when the temperature difference is equal to 5 ℃, a heat dissipation system controls a PWM wave to control a heat dissipation fan to dissipate heat at a duty ratio of 50%, when the temperature difference is greater than 5 ℃, the temperature is increased by 1 ℃, the PWM duty ratio is correspondingly increased by 2.5%, when the temperature difference reaches 20 ℃, the PWM duty ratio reaches 100%, and the heat dissipation fan starts to run at full speed, so that the rotating speed of the heat dissipation fan can be dynamically and finely controlled, and.
When the PWM of the air cooling control panel is output, the rotating speed of the cooling fan corresponding to the current PWM duty ratio is recorded, the air cooling control panel and the air quantity sensor acquire actual air speed through RS485 communication, the air cooling control panel compares the set air speed with the actual air speed, if the actual air speed is within the range of 90% -100% of the set air speed, the cooling fan is normal, if the actual air speed is within the range of 50% -90% of the set air speed, an air outlet is blocked, and if the actual air speed is below 50% of the set air speed, the cooling fan breaks down.
In the operation process of the cooling system, the operation state of the cooling fan and whether the air outlet is blocked are fed back to the charging pile control unit through CAN communication in real time, the charging pile control unit feeds back the information to the charging pile background operation and maintenance system through a network, and operation and maintenance personnel perform field processing according to background system information.
In addition, the actual wind speed of the charging pile is monitored through the wind rate sensor, and the actual running state of the cooling fan is judged according to the comparison between the actual wind speed and the set wind speed, so that when the air outlet is blocked or the cooling fan is damaged, operation and maintenance personnel can be timely informed to carry out on-site maintenance, safety accidents are avoided, the traditional regular inspection mode is changed, and the labor cost is reduced.
The embodiment of the invention also discloses a direct current charging pile air cooling heat dissipation fine monitoring method realized by using the monitoring device, which comprises the following operations:
acquiring the temperature difference between the position of an air inlet of a charging pile and the position of a charging module;
when the temperature difference equals 5 degrees centigrade, the PWM wave is controlled to control the heat dissipation fan to dissipate heat with 50% duty ratio, when the temperature difference is greater than 5 degrees centigrade, the PWM duty ratio is correspondingly increased by 2.5% when the temperature is increased by 1 degree centigrade, and when the temperature reaches 20 degrees centigrade, the PWM duty ratio is set to 100%.
The temperature of first temperature sensor and second temperature sensor is gathered respectively through filling the air-cooled control panel in the electric pile through AD sampling channel, real-time supervision air intake temperature and the temperature difference of the module that charges, cooling system control PWM ripples dispels the heat with 50% duty cycle control radiator fan when the temperature difference equals 5 degrees centigrade, when the temperature difference is greater than 5 degrees centigrade, the temperature is every to increase 1 degree centigrade, the PWM duty cycle corresponds and increases 2.5%, when the temperature difference reaches 20 degrees centigrade, the PWM duty cycle reaches 100%, radiator fan begins full speed operation, so can the dynamic meticulous control radiator fan rotational speed, realize filling the heat dissipation of electric pile module that charges.
When the PWM of the air cooling control panel is output, the rotating speed of the cooling fan corresponding to the current PWM duty ratio is recorded, the air cooling control panel and the air quantity sensor acquire actual air speed through RS485 communication, the air cooling control panel compares the set air speed with the actual air speed, if the actual air speed is within the range of 90% -100% of the set air speed, the cooling fan is normal, if the actual air speed is within the range of 50% -90% of the set air speed, an air outlet is blocked, and if the actual air speed is below 50% of the set air speed, the cooling fan breaks down.
In the operation process of the cooling system, the operation state of the cooling fan and whether the air outlet is blocked are fed back to the charging pile control unit through CAN communication in real time, the charging pile control unit feeds back the information to the charging pile background operation and maintenance system through a network, and operation and maintenance personnel perform field processing according to background system information.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides a direct current fills electric pile forced air cooling heat dissipation monitoring device that becomes more meticulous, a serial communication port, monitoring device includes:
the air conditioner comprises a cooling fan, an air quantity sensor, a charging module, an air cooling control plate, a first temperature sensor and a second temperature sensor;
the cooling fan is arranged at the air outlet of the charging pile, the air quantity sensor is arranged at the cooling fan, the first temperature sensor is arranged at the position of the charging module, and the second temperature sensor is arranged at the position of the air inlet of the charging pile;
the air cooling control panel is electrically connected with the cooling fan, the air quantity sensor, the first temperature sensor and the second temperature sensor.
2. The direct current charging pile air-cooling heat dissipation fine monitoring device of claim 1, wherein the air-cooling control board collects temperature information of the first temperature sensor and the second temperature sensor through an AD collection channel.
3. The direct current charging pile air-cooling heat dissipation fine monitoring device of claim 1, wherein the air-cooling control panel and the air volume sensor are in communication through RS 485.
4. A refined monitoring method for air cooling and heat dissipation of a direct current charging pile, which is realized by using the monitoring device of any one of claims 1 to 3, is characterized by comprising the following operations:
acquiring the temperature difference between the position of an air inlet of a charging pile and the position of a charging module;
when the temperature difference equals 5 degrees centigrade, the PWM wave is controlled to control the heat dissipation fan to dissipate heat with 50% duty ratio, when the temperature difference is greater than 5 degrees centigrade, the PWM duty ratio is correspondingly increased by 2.5% when the temperature is increased by 1 degree centigrade, and when the temperature reaches 20 degrees centigrade, the PWM duty ratio is set to 100%.
5. The direct current charging pile air-cooling heat dissipation refined monitoring method according to claim 4, further comprising:
when the PWM of the air cooling control panel is output, recording the rotating speed of the corresponding heat dissipation fan under the current PWM duty ratio to set the wind speed, and acquiring the actual wind speed through the wind sensor;
and comparing the set wind speed with the actual wind speed, if the actual wind speed is within the range of 90% -100% of the set wind speed, judging that the heat dissipation fan is normal, if the actual wind speed is within the range of 50% -90% of the set wind speed, judging that the air outlet is blocked, and if the actual wind speed is below 50% of the set wind speed, judging that the heat dissipation fan is in fault.
6. The direct current charging pile air-cooling heat dissipation refined monitoring method according to claim 4, further comprising:
in the operation process, the operation state of the cooling fan and whether the air outlet is blocked are fed back to the charging pile control unit through CAN communication in real time, and the charging pile control unit feeds back the information to the charging pile background operation and maintenance system through a network.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010276576.6A CN111391684A (en) | 2020-04-10 | 2020-04-10 | Air cooling heat dissipation refined monitoring device and method for direct current charging pile |
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| CN202010276576.6A CN111391684A (en) | 2020-04-10 | 2020-04-10 | Air cooling heat dissipation refined monitoring device and method for direct current charging pile |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008412A (en) * | 2021-03-17 | 2021-06-22 | 阳光电源股份有限公司 | Method, device and system for detecting abnormal heat dissipation of air duct and readable storage medium |
| CN113263937A (en) * | 2021-05-31 | 2021-08-17 | 江苏金彭集团有限公司 | New energy automobile charges with charging device who has prevent mistake and pull out and lock bit architecture |
| CN116533796A (en) * | 2023-06-27 | 2023-08-04 | 南京金维鸟智能系统股份有限公司 | Fill electric pile control by temperature change forced air cooling heat dissipation control system |
| CN118030589A (en) * | 2024-04-11 | 2024-05-14 | 福建时代星云科技有限公司 | Optimized control method and terminal for cooling fan of cooling system |
| CN118030589B (en) * | 2024-04-11 | 2024-06-28 | 福建时代星云科技有限公司 | Optimized control method and terminal for cooling fan of cooling system |
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| CN118030589B (en) * | 2024-04-11 | 2024-06-28 | 福建时代星云科技有限公司 | Optimized control method and terminal for cooling fan of cooling system |
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Application publication date: 20200710 |