CN110267484A - A kind of Vehicular charger cooling system based on heat conduction with phase change principle - Google Patents
A kind of Vehicular charger cooling system based on heat conduction with phase change principle Download PDFInfo
- Publication number
- CN110267484A CN110267484A CN201910432432.2A CN201910432432A CN110267484A CN 110267484 A CN110267484 A CN 110267484A CN 201910432432 A CN201910432432 A CN 201910432432A CN 110267484 A CN110267484 A CN 110267484A
- Authority
- CN
- China
- Prior art keywords
- vehicular charger
- phase change
- heat conduction
- circuit module
- charging circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20845—Modifications to facilitate cooling, ventilating, or heating for automotive electronic casings
- H05K7/20881—Liquid coolant with phase change
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20936—Liquid coolant with phase change
Abstract
The present invention relates to a kind of Vehicular charger cooling systems based on heat conduction with phase change principle, for radiating to Vehicular charger, Vehicular charger contains Vehicular charger upper casing, charging circuit module, Vehicular charger lower casing, charging circuit module is installed on Vehicular charger lower casing bottom inner surface, Vehicular charger upper casing is connect with the upper mechanical of Vehicular charger lower casing, cooling system includes heat conduction with phase change medium, expanding chamber, through-hole and waterproof vent valve, heat conduction with phase change media filler is in Vehicular charger upper casing, inner space that Vehicular charger lower casing and charging circuit module the are formed and heat for absorbing charging circuit module generation is conducted to Vehicular charger upper casing and Vehicular charger lower casing, expanding chamber is set to inside Vehicular charger lower casing lateral surface and expanding chamber filled with heat conduction with phase change medium, through-hole is opened under Vehicular charger Shell and expanding chamber connecting part, waterproof vent valve are set to expanding chamber top, system structure optimization and radiating efficiency greatly improves.
Description
Technical field
The present invention relates to electric automobile and vehicle-mounted charger technical fields, and in particular to a kind of vehicle based on heat conduction with phase change principle
Carry charger cooling system.
Background technique
In recent years, new-energy automobile especially electric car had obtained quick development in China, and popularity rate is continuously improved,
Wherein mainly based on pure electric automobile.With the continuous development of electric vehicle engineering, continual mileage is continuously improved, this is also caused
Electric automobile whole is set to need to possess more electricity, in the use process of electric car, the convenience of charging and charging
Speed speed etc. then greatly influence the driving experience of user, therefore, the rated power of Vehicular charger shows Xiang Geng great
The visible trend of power demand development, can just effectively shorten charging time of electric car with this.
The working efficiency of Vehicular charger is generally 92% or so, during the charging process, the power device inside charger
Constantly fever can generate energy loss, and its heat is constantly accumulated and power device is be easy to cause to damage, so in order to guarantee to fill
Motor can work normally, it usually needs design suitable effective cooling system for it.Currently, the Vehicular charger of traditional technology
Mainly there are water cooling system and water-cooling heat radiating system two major classes in cooling system, water cooling system is air-cooled using air
Mode, the first power device inside Vehicular charger transfer heat to Vehicular charger surface by heat conductive silica gel, then
The heat diffusion by Vehicular charger surface is blown into air using fan, since thermal resistance is very big in wind-heat transmittance process, and
Vehicular charger surface radiating limited area, noise is big, radiating efficiency is also very low, although and water cooling system structure
It is simple but generally bulky, occupied space is excessive；Water-cooling heat radiating system is (to generally use cooling by the way of liquid water cooling
Liquid), the power device inside Vehicular charger transfers heat to Vehicular charger lower surface by heat conductive silica gel, then passes through
Heat is conducted to coolant liquid to realize the cooling of Vehicular charger by lower surface, such cooling system components are more, structure is complicated,
At high cost, although can suitably reduce system overall volume, power device still has very big to the heat transfer of coolant liquid
Thermal resistance, radiating efficiency are still very low.
Summary of the invention
The present invention is big for Vehicular charger cooling system thermal resistance traditional at present on electric car, radiating efficiency is low, holds
The problems such as charger internal power device easy to damage, provides a kind of Vehicular charger cooling system based on heat conduction with phase change principle,
The system efficiently uses that heat conduction with phase change medium latent heat of phase change is big, low easy the generations solid-liquid phase change of fusing point, the higher characteristic of thermal conductivity, general
The heat that power device in charging circuit module generates is conducted to heat conduction with phase change medium and is further conducted to outside Vehicular charger
On shell, so that each outer surface of Vehicular charger becomes radiating surface, increasing heat radiation area, to effectively improve radiating efficiency.
Technical scheme is as follows:
A kind of Vehicular charger cooling system based on heat conduction with phase change principle, for containing Vehicular charger upper casing, charging
Circuit module, Vehicular charger lower casing Vehicular charger heat dissipation, the charging circuit module is installed on the vehicle-mounted charge
Machine lower casing bottom inner surface, the Vehicular charger upper casing are connect with the upper mechanical of the Vehicular charger lower casing, described to dissipate
Hot systems include heat conduction with phase change medium, expanding chamber, through-hole and waterproof vent valve, and the heat conduction with phase change media filler is in the vehicle
It carries the inner space that charger upper casing, Vehicular charger lower casing and the charging circuit module are formed and absorbs the charging circuit
The heat that module generates is conducted to the Vehicular charger upper casing and the Vehicular charger lower casing, and the expanding chamber is set to institute
It states filled with the heat conduction with phase change medium inside Vehicular charger lower casing lateral surface and expanding chamber, the through-hole is opened in the vehicle
Charger lower casing and the expanding chamber connecting part are carried, the waterproof vent valve is set to expanding chamber top.
Preferably, the cooling system further includes temperature sensor, and the thermometric end of the temperature sensor is dipped in phase transformation and leads
In thermal medium, the data output end of the temperature sensor is connect with described in acquiring with the charging circuit module electric signal
Heat conduction with phase change medium temperature data are transferred to the charging circuit module.
Preferably, the temperature sensor acquires the heat conduction with phase change medium temperature and works greater than the charging circuit module
When temperature preset threshold, the charging circuit module controls itself and reduces charging work power.
Preferably, the value range of the charging circuit module operating temperature preset threshold is 50 DEG C -70 DEG C.
Preferably, the charging circuit module includes sequentially connected power circuitry module, control circuit module and monitoring
Module, the data output end of the temperature sensor connect with the monitoring modular electric signal and by the heat conduction with phase change of acquisition
Medium temperature data are transferred to the monitoring modular.
Preferably, the temperature sensor acquires the heat conduction with phase change medium temperature and works greater than the power circuitry module
When temperature preset threshold, the control circuit module control power circuitry module reduces charging work power.
Preferably, the value range of the power circuitry module operating temperature preset threshold is 50 DEG C -70 DEG C.
Preferably, rubber seal is set on the contact surface of the Vehicular charger upper casing and the Vehicular charger lower casing
Circle.
Preferably, the heat conduction with phase change medium has insulating properties.
Preferably, the heat conduction with phase change medium uses paraffin.
Technical effect of the invention is as follows:
The present invention relates to a kind of Vehicular charger cooling system based on heat conduction with phase change principle, which is based on original
Vehicular charger structure adds the components such as heat conduction with phase change medium, expanding chamber, through-hole and waterproof vent valve, and formation is led based on phase transformation
Effective cooling system of the thermally conductive principle of thermal medium phase transition process, heat conduction with phase change media filler is in the Vehicular charger upper casing, vehicle
Carry the inner space that charger lower casing and the charging circuit module are collectively formed, so that charging circuit module is immersed in
It is the main functional module of Vehicular charger in heat conduction with phase change medium, it is vehicle-mounted to realize the charge function of Vehicular charger
For charger in the course of work of charging, the power device in charging circuit module, should due to a large amount of heat of power consumption generation
Heat is conducted to the heat conduction with phase change medium directly contacted with charging circuit module, big, molten using heat conduction with phase change medium latent heat of phase change
The low easy generation solid-liquid phase change of point, the higher characteristic of thermal conductivity, make it absorb amount of heat in phase transition process, and further conduct
To the Vehicular charger upper casing being in direct contact with it, on Vehicular charger lower casing (being collectively referred to as Vehicular charger shell), so that vehicle-mounted
Each outer surface of charger becomes radiating surface, increasing heat radiation area, to further enhance the heat-sinking capability of system, effectively mentions
The radiating efficiency of high system, system structure is simple, safely and effectively, high reliablity, under same radiating requirements, moreover it is possible to be reduced significantly vehicle
Charger geometric dimension is carried, so that Vehicular charger is more compact practical.
The thermometric end of temperature sensor is dipped in heat conduction with phase change medium together by this system it is also preferable to include there is temperature sensor
When temperature sensor data output end the heat conduction with phase change medium temperature number will acquire is connect with charging circuit module electric signal
According to charging circuit module is transferred to, liquid is gradually molten by solid-state since heat conduction with phase change medium has been heated at this time, is passed
The heat led is more uniform, due to its be with charging circuit module directly contact, so when the phase transformation that acquires of temperature sensor lead
The temperature of thermal medium is equal to the temperature of charging circuit module, it is further preferred that when the temperature is greater than charging circuit module work
When making temperature preset threshold, charging circuit module operating temperature preset threshold is mainly according to the specific function inside Vehicular charger
The running parameter of rate device is set, and value range is 50 DEG C -70 DEG C, preferably can be set to 65 DEG C, then charging circuit mould
The power device that block controls itself reduces charging work power to be carried out with preventing the temperature of Vehicular charger from further increasing
Thermal protection avoids power device damage.
Detailed description of the invention
Fig. 1: for a kind of structural schematic diagram of the Vehicular charger cooling system based on heat conduction with phase change principle of the present invention.
Fig. 2: for a kind of preferred structure schematic diagram of the Vehicular charger cooling system based on heat conduction with phase change principle of the present invention.
Figure label lists as follows:
1-Vehicular charger lower casing；2-temperature sensors；3-Vehicular charger upper casings；4-waterproof vent valves；5-is swollen
Swollen room；6-charging circuit modules；7-heat conduction with phase change media；8 --- through-hole；
61-power circuitry modules；62-control circuit modules；63-monitoring modulars.
Specific embodiment
Further the present invention is described in detail with reference to the accompanying drawing.
The present invention relates to a kind of Vehicular charger cooling systems based on heat conduction with phase change principle, as Fig. 1 system structure is shown
Shown in intention, it is used for the heat dissipation of Vehicular charger, Vehicular charger to contain Vehicular charger upper casing 3, Vehicular charger lower casing 1
With the equal components of charging circuit module 6, the charging circuit module 6 is installed on 1 bottom inner surface of Vehicular charger lower casing, institute
It states Vehicular charger upper casing 3 and the upper mechanical of the Vehicular charger lower casing 1 links together, the cooling system includes phase
Become heat-conducting medium 7, expanding chamber 5, through-hole 8 and waterproof vent valve 4, the heat conduction with phase change medium 7 and is filled in the vehicle-mounted charge
Inner space that machine upper casing 3, Vehicular charger lower casing 1 and the charging circuit module 6 are formed simultaneously absorbs the charging circuit mould
The heat that block 6 generates is conducted to the Vehicular charger upper casing 3 and the Vehicular charger lower casing 1, and the expanding chamber 5 is set to
A certain amount of heat conduction with phase change medium 7 is also filled with inside 1 lateral surface of Vehicular charger lower casing and expanding chamber 5, it is described
Through-hole 8 is opened in the Vehicular charger lower casing 1 and 5 connecting part of expanding chamber, is filled with the phase transformation inside expanding chamber 5
Heat-conducting medium 7 is used to absorb volume caused by 7 neither endothermic nor exothermic of Vehicular charger inner space heat conduction with phase change medium by through-hole 8
Variation or the loss of supplement heat conduction with phase change medium 7, the waterproof vent valve 4, which is set to 5 top of expanding chamber, can effectively maintain vehicle
It carries the pressure stabilization of the heat conduction with phase change medium 7 of charger inner space and discharges the extra gas in inner space while preventing inside
Heat conduction with phase change medium 7 to outward leakage and prevent outside moisture from entering inner space, the system be based on original vehicle-mounted charge
Machine structure adds the components such as heat conduction with phase change medium 7, expanding chamber 5, through-hole 8 and waterproof vent valve 4, is formed and is situated between based on heat conduction with phase change
Effective cooling system of the thermally conductive principle of 7 phase transition process of matter, heat conduction with phase change medium 7 are filled in the Vehicular charger upper casing 3, vehicle-mounted
The inner space that charger lower casing 1 and the charging circuit module 6 are collectively formed, so that charging circuit module 6 submerges
It is the main functional module of Vehicular charger in heat conduction with phase change medium 7, to realize the charge function of Vehicular charger,
High-power device of the Vehicular charger in the course of work of charging, in charging circuit module 6 (being alternatively referred to as electronic module)
For part since power consumption generates a large amount of heat, which is conducted to the heat conduction with phase change medium 7 directly contacted with charging circuit module 6,
Since heat conduction with phase change medium 7 is good insulator, while there is big latent heat of phase change, fusing point is lower, in the mistake for absorbing heat
Cheng Zhong can quickly reach fusing point, solid-liquid phase change occur, and absorb amount of heat in the process, and latent heat can be made full use of real
The operating temperature control of existing Vehicular charger, meanwhile, heat conduction with phase change medium 7 has higher thermal conductivity, therefore heat conduction with phase change is utilized to be situated between
7 latent heat of phase change of matter is big, the low easy generation solid-liquid phase change of fusing point, the higher characteristic of thermal conductivity, absorbs it in phase transition process largely
Heat, and be further conducted to the Vehicular charger upper casing 3 being in direct contact with it, Vehicular charger lower casing 1 (can be collectively referred to as vehicle-mounted
Charger shell) on, so that each outer surface of Vehicular charger becomes radiating surface, make the heterogeneity phantom inside Vehicular charger
More uniform, increasing heat radiation area effectively improves the radiating efficiency of system, is to further enhance the heat-sinking capability of system
Structure of uniting is simple, safely and effectively, high reliablity, under same radiating requirements, moreover it is possible to be reduced significantly Vehicular charger geometric dimension, make
It is more compact practical to obtain Vehicular charger.
Preferably, as shown in Figure 1, the cooling system further includes temperature sensor 2, by the survey of the temperature sensor 2
Wen Duan is dipped in heat conduction with phase change medium 7, while by the data output end of the temperature sensor 2 and the charging circuit module 6
Electric signal connects (electrical connection) so that 7 temperature data of heat conduction with phase change medium of acquisition is transferred to the charging circuit module
6, liquid is gradually molten by solid-state since heat conduction with phase change medium 7 has been heated at this time, the heat conducted is more uniform, by
Yu Qiyu charging circuit module 6 be directly contact, so when the acquisition of temperature sensor 2 heat conduction with phase change medium 7 temperature just etc.
In the temperature of charging circuit module 6.
Preferably, the temperature sensor 2 acquires 7 temperature of heat conduction with phase change medium greater than the charging circuit module 6
When operating temperature preset threshold, the charging circuit module 6, which controls, itself reduces charging work power, and further preferably
Ground, the value range of the 6 operating temperature preset threshold of charging circuit module are 50 DEG C -70 DEG C namely 6 work of charging circuit module
Make temperature preset threshold mainly to be set according to the running parameter of the specific power device inside Vehicular charger, value range
It is 50 DEG C -70 DEG C, preferably can be set to 65 DEG C, that is to say, that when 7 temperature of heat conduction with phase change medium is greater than charging circuit module 6
At 65 DEG C of operating temperature preset threshold, 7 temperature data of heat conduction with phase change medium of acquisition is transferred to described by temperature sensor 2
Charging circuit module 6, the power device that then charging circuit module 6 controls itself reduces charging work power, vehicle-mounted to prevent
The temperature of charger further increases, and carries out overheating protection, and latent heat is made full use of to realize the operating temperature control of Vehicular charger,
Effectively avoid power device damage.
Preferably, the cooling system also advanced optimizes structure design on the basis of Fig. 1 structure, preferred such as Fig. 2
Shown in structure chart, charging circuit module 6 includes sequentially connected power circuitry module 61, control circuit module 62 and monitoring mould
Block 63, the data output end of the temperature sensor 2 connect (electrical connection) with 63 electric signal of monitoring modular and will acquisitions
7 temperature data of heat conduction with phase change medium be transferred to the monitoring modular 63, at this time since heat conduction with phase change medium 7 has been heated
Liquid is gradually molten by solid-state, the heat conducted is more uniform, since it is directly to contact with power circuitry module 61,
So when the temperature of heat conduction with phase change medium 7 that acquires of temperature sensor 2 be equal to the temperature of power circuitry module 61.
Preferably, the temperature sensor 2 acquires 7 temperature of heat conduction with phase change medium greater than the power circuitry module 61
When operating temperature preset threshold, the control circuit module 62 controls power circuitry module 61 and reduces charging work power, and
It is further preferred that the power circuitry module works, the value range of 61 temperature preset thresholds is 50 DEG C -70 DEG C namely power
61 operating temperature preset threshold of circuit module mainly according to the running parameter of the specific power device inside Vehicular charger come
Setting, value range are 50 DEG C -70 DEG C, preferably can be set to 65 DEG C, when 7 temperature of heat conduction with phase change medium is greater than power circuit mould
At 65 DEG C of 61 operating temperature preset threshold of block, 7 temperature data of heat conduction with phase change medium of acquisition is transferred to by temperature sensor 2
The monitoring modular 63, monitoring module 63 are passed along control circuit module 62, and then control circuit module 62 controls power electricity
The power device of road module 61 reduces charging work power and is overheated with preventing the temperature of Vehicular charger from further increasing
Protection makes full use of latent heat to realize the operating temperature control of Vehicular charger, effectively avoids power device damage.
Preferably, rubber seal is set on the Vehicular charger upper casing 3 and the contact surface of the Vehicular charger lower casing 1
(not shown) is enclosed, guarantees the leakproofness of inner space, prevents heat conduction with phase change medium 7 from leaking out from inside.
Preferably, the heat conduction with phase change medium 7 has insulating properties, it is understood that is exactly for the heat conduction with phase change medium 7
A insulator prevents electric leakage with this to guarantee the job security of charge power module.
Preferably, the heat conduction with phase change medium 7 is using the media such as paraffin, olefin material big, thermostabilization with latent heat of phase change
Property good, solid hot phase transition process in volume change it is small, again repeatedly after heat absorption heat release phase transition temperature and latent heat of phase change vary less, price
The multiple advantages such as cheap, therefore can better ensure that higher radiating efficiency, sexual valence are relatively high using paraffin.
It should be pointed out that specific embodiment described above can make those skilled in the art that the present invention be more fully understood
It creates, but do not limit the invention in any way is created.Therefore, although this specification creates the present invention referring to drawings and examples
It makes and has been carried out detailed description, it will be understood by those skilled in the art, however, that still can modify to the invention
Or equivalent replacement, in short, the technical solution and its improvement of all spirit and scope for not departing from the invention, should all contain
It covers in the protection scope of the invention patent.
Claims (10)
1. a kind of Vehicular charger cooling system based on heat conduction with phase change principle, for containing Vehicular charger upper casing, charging electricity
Road module, Vehicular charger lower casing Vehicular charger heat dissipation, the charging circuit module is installed on the Vehicular charger
Lower casing bottom inner surface, the Vehicular charger upper casing are connect with the upper mechanical of the Vehicular charger lower casing, and feature exists
In the cooling system includes heat conduction with phase change medium, expanding chamber, through-hole and waterproof vent valve, and the heat conduction with phase change medium is filled out
It fills in the inner space that the Vehicular charger upper casing, Vehicular charger lower casing and the charging circuit module are formed and absorbs institute
The heat for stating charging circuit module generation is conducted to the Vehicular charger upper casing and the Vehicular charger lower casing, the expansion
Room is set to filled with the heat conduction with phase change medium inside the Vehicular charger lower casing lateral surface and expanding chamber, and the through-hole is opened
Set on the Vehicular charger lower casing and the expanding chamber connecting part, the waterproof vent valve is set to expanding chamber top.
2. the Vehicular charger cooling system according to claim 1 based on heat conduction with phase change principle, which is characterized in that also wrap
Temperature sensor is included, the thermometric end of the temperature sensor is dipped in heat conduction with phase change medium, and the data of the temperature sensor are defeated
Outlet connect described to be transferred to the heat conduction with phase change medium temperature data of acquisition with the charging circuit module electric signal
Charging circuit module.
3. the Vehicular charger cooling system according to claim 2 based on heat conduction with phase change principle, which is characterized in that described
It is described when temperature sensor acquires the heat conduction with phase change medium temperature greater than the charging circuit module operating temperature preset threshold
Charging circuit module controls itself and reduces charging work power.
4. the Vehicular charger cooling system according to claim 3 based on heat conduction with phase change principle, which is characterized in that described
The value range of charging circuit module operating temperature preset threshold is 50 DEG C -70 DEG C.
5. based on the Vehicular charger cooling system of heat conduction with phase change principle according to one of claim 2 to 4, feature exists
In the charging circuit module includes sequentially connected power circuitry module, control circuit module and monitoring modular, the temperature
The data output end of sensor connect with the monitoring modular electric signal and by the heat conduction with phase change medium temperature data of acquisition
It is transferred to the monitoring modular.
6. the Vehicular charger cooling system according to claim 5 based on heat conduction with phase change principle, which is characterized in that described
It is described when temperature sensor acquires the heat conduction with phase change medium temperature greater than the power circuitry module operating temperature preset threshold
Control circuit module controls power circuitry module and reduces charging work power.
7. the Vehicular charger cooling system according to claim 6 based on heat conduction with phase change principle, which is characterized in that described
The value range of power circuitry module operating temperature preset threshold is 50 DEG C -70 DEG C.
8. according to claim 1 to, based on the Vehicular charger cooling system of heat conduction with phase change principle, feature exists described in one of 4
In rubber seal is arranged on the contact surface of, the Vehicular charger upper casing and the Vehicular charger lower casing.
9. according to claim 1 to, based on the Vehicular charger cooling system of heat conduction with phase change principle, feature exists described in one of 4
In the heat conduction with phase change medium has insulating properties.
10. according to claim 1 to described in one of 4 based on the Vehicular charger cooling system of heat conduction with phase change principle, feature
It is, the heat conduction with phase change medium uses paraffin.
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| CN201910432432.2A CN110267484A (en) | 2019-05-23 | 2019-05-23 | A kind of Vehicular charger cooling system based on heat conduction with phase change principle |
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| CN201910432432.2A CN110267484A (en) | 2019-05-23 | 2019-05-23 | A kind of Vehicular charger cooling system based on heat conduction with phase change principle |
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| CN112236004A (en) * | 2020-10-15 | 2021-01-15 | 中国建筑第八工程局有限公司 | One-way heat conducting device |
| US11387598B2 (en) | 2019-02-19 | 2022-07-12 | Aptiv Technologies Limited | Electrical connector assembly with modular cooling features |
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Application publication date: 20190920 |