CN218526233U

CN218526233U - Heat dissipation device for vehicle-mounted DCDC module

Info

Publication number: CN218526233U
Application number: CN202222750545.7U
Authority: CN
Inventors: 王文昊; 边振华; 李智华; 蒋佳坤
Original assignee: Shandong Huamei Power Technology Co ltd
Current assignee: Shandong Huamei Power Technology Co ltd
Priority date: 2022-10-19
Filing date: 2022-10-19
Publication date: 2023-02-24
Anticipated expiration: 2032-10-19

Abstract

The utility model relates to a DCDC converter technical field discloses a heat abstractor for on-vehicle DCDC module, including ceramic heat conduction bottom plate, ceramic heat conduction bottom plate upper surface middle part fixed mounting has temperature sensor, fixed surface installs fixed frame on the ceramic heat conduction bottom plate, the thermovent has been seted up perpendicularly in the middle part of the fixed frame upper surface, fixed mounting has the heat dissipation fan in the thermovent, the fixed intercommunication of one side level of fixed frame has the guide duct, be provided with the solenoid valve on the guide duct. The utility model discloses a temperature sensor detects the temperature of fixed frame internal DC module, and the data transmission that will detect carries out the analysis for the singlechip, and when the temperature was higher than the default, the singlechip controlled heat dissipation fan respectively and the solenoid valve was opened, and the heat dissipation fan starts to take steam out from fixed frame, and the cold wind of external environment dispels the heat in passing through wind scooper and guide duct row income fixed frame, and is comparatively practical, is fit for extensively promoting and using.

Description

Heat dissipation device for vehicle-mounted DCDC module

Technical Field

The utility model relates to a DCDC converter technical field specifically is a heat abstractor for on-vehicle DCDC module.

Background

The new energy automobile is gradually popularized, the voltage of a large battery for supplying power to a direct current motor in the new energy automobile reaches more than 300 volts, the voltage of electric appliances in the automobile is 12V, and the used batteries are all 12V low-voltage batteries, so that the DCDC converter plays a great role in the new energy automobile. The DCDC converter transmits the electric energy of the high-voltage battery to the low-voltage battery, so that equipment such as a cigarette lighter, a sound, a navigator and a backing image in the automobile can be supplied with power.

However, because the DCDC converter is installed inside the front hood cabin, the converter heating problem is very serious in the use process of the vehicle, the high pressure and high temperature of the converter can directly cause the heating components to be damaged in different degrees, and even cause the direct breakdown of the MOS, the diode and the battery, so that the service life of the converter is shortened and even the converter is directly damaged.

In view of this, the present invention is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heat abstractor for on-vehicle DCDC module to solve the problem that proposes in the background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a heat abstractor for on-vehicle DCDC module, includes ceramic heat conduction bottom plate, ceramic heat conduction bottom plate upper surface middle part fixed mounting has temperature sensor, fixed surface installs fixed frame on the ceramic heat conduction bottom plate, the thermovent has been seted up perpendicularly in fixed frame upper surface middle part, the fixed heat dissipation fan that installs in the thermovent, one side level fixed intercommunication of fixed frame has the guide duct, be provided with the solenoid valve on the guide duct, and the other end of guide duct is fixed the intercommunication and has the flexible pipe of ripple, the other end of the flexible pipe of ripple is fixed the intercommunication and has the wind scooper.

As a preferred embodiment of the present invention, the lower surface of the ceramic heat conducting bottom plate is vertically and fixedly provided with the heat dissipating fins which are uniformly distributed in multiple groups.

As an optimized implementation mode of the utility model, a ventilation opening with a plurality of groups evenly distributed is arranged on one side of the fixing frame.

As a preferred embodiment of the present invention, the wind scooper is trumpet-shaped.

As an optimized embodiment of the present invention, the outer openings of the wind scooper, the heat dissipation opening and the ventilation opening are all fixedly provided with a dust screen.

As a preferred embodiment of the utility model, temperature sensor's data output end passes through the wire and is connected with the data input part of singlechip, the signal output part of singlechip passes through the wire and is connected with the signal input part of heat dissipation fan and solenoid valve respectively.

Compared with the prior art, the utility model provides a heat abstractor for on-vehicle DCDC module possesses following beneficial effect:

1. this a heat abstractor for on-vehicle DCDC module, through guide duct, the flexible pipe of ripple and wind scooper, when using, stretch the flexible pipe of ripple, be linked together the air scooper with the air inlet grille of locomotive, at the in-process that the vehicle went, external environment cold wind can be through wind scooper and guide duct row fixed frame in, can dispel the heat to the DC module in the fixed frame, and through fixed frame side vent, can increase the air and flow, improve the radiating effect.

2. This a heat abstractor for on-vehicle DCDC module, through temperature sensor, the singlechip, the cooperation of solenoid valve and heat dissipation fan is used, when using, temperature sensor detects the temperature of fixed frame internal DC module, data transmission that will detect carries out the analysis for the singlechip, when the temperature is higher than the default, the singlechip controls heat dissipation fan and solenoid valve respectively and opens, the heat dissipation fan starts to take steam out from fixed frame, the cold wind of external environment dispels the heat in passing through wind scooper and fixed frame of guide duct row.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a front view of a heat dissipation device for an on-board DCDC module according to the present invention;

fig. 2 is a schematic diagram of an internal structure of a heat dissipation device for a vehicle-mounted DCDC module according to the present invention;

fig. 3 is a perspective view of an air guiding cover of a heat dissipating device for a vehicle-mounted DCDC module according to the present invention;

fig. 4 is a schematic diagram of an operation structure of a temperature sensor of a heat dissipation device for an on-vehicle DCDC module.

In the figure: 1. a heat dissipating fin; 2. a ceramic heat conducting base plate; 3. a fixing frame; 4. a heat dissipation port; 5. an air guide pipe; 6. an electromagnetic valve; 7. a corrugated expansion pipe; 8. a wind scooper; 9. a vent; 10. a heat dissipation fan; 11. a temperature sensor; 12. a dust-proof net cover; 13. and a single chip microcomputer.

Detailed Description

In order to better understand the purpose, structure and function of the present invention, the following description is made in detail with reference to the accompanying drawings.

As shown in fig. 1 to 4, the utility model provides a technical solution: the utility model provides a heat abstractor for on-vehicle DCDC module, including ceramic heat conduction bottom plate 2, the perpendicular fixed mounting in 2 lower surfaces of ceramic heat conduction bottom plate has multiunit evenly distributed's radiating fin 1, ceramic heat conduction bottom plate 2 and radiating fin 1 can improve heat conduction radiating effect, ceramic heat conduction bottom plate 2 upper surface middle part fixed mounting has temperature sensor 11, temperature sensor 11 detects the DC module temperature in fixed frame 3, ceramic heat conduction bottom plate 2 upper surface fixed mounting has fixed frame 3, fixed frame 3 upper surface middle part has seted up thermovent 4 perpendicularly, fixed mounting has radiating fan 10 in the thermovent 4, hot gas in fixed frame 3 can be taken out to radiating fan 10, one side horizontal fixed intercommunication of fixed frame 3 has guide duct 5, be provided with solenoid valve 6 on the guide duct 5, and the other end of guide duct 5 is fixed to be communicated with corrugated expansion pipe 7, the other end of corrugated expansion pipe 7 is fixed to be communicated with guide duct 8, the cold wind of external environment, arrange into fixed frame 3 through guide duct 8 and guide duct 5 and dispel the heat.

As shown in fig. 1 to 3, in the present configuration, further, a plurality of sets of uniformly distributed ventilation openings 9 are horizontally formed on one side of the fixing frame 3, the wind scooper 8 is in a horn shape, a right inlet opening of the wind scooper 8 is larger than a left outlet opening, so that the flow rate of air can be increased when air is admitted, and the ventilation openings 9 can increase the fluidity of air in the fixing frame 3.

As shown in fig. 1 to 4, in the present configuration, further, a dust-proof mesh enclosure 12 is fixedly installed at the outer openings of the air guiding enclosure 8, the heat dissipating opening 4 and the ventilation opening 9, and the dust-proof mesh enclosure 12 prevents external dust from entering the fixing frame 3.

As shown in fig. 1 to 4, in the present configuration, further, a data output end of the temperature sensor 11 is connected to a data input end of the single chip microcomputer 13 through a wire, and a signal output end of the single chip microcomputer 13 is connected to signal input ends of the heat dissipation fan 10 and the electromagnetic valve 6 through wires, respectively.

The during operation, stretch flexible pipe 7 of ripple, be linked together air guide cover 8 and the air inlet grille of locomotive, temperature sensor 11 detects the temperature of the interior DC module of fixed frame 3, data transmission that will detect carries out the analysis for singlechip 13, when the temperature is higher than the default, singlechip 13 controls heat dissipation fan 10 and solenoid valve 6 respectively and opens, the heat dissipation fan takes steam out from fixed frame 3, at the in-process that the vehicle travel, external environment cold wind can be discharged into fixed frame 3 through air guide cover 8 and guide duct 5 in, can dispel the heat to the DC module in the fixed frame 3, through 3 side vent 9 of fixed frame, can increase the interior air flow of fixed frame 3, and the heat dissipation effect is improved.

It is to be understood that the present invention has been described with reference to certain embodiments and that various changes or equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention as defined by the appended claims. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims

1. A heat dissipation device for an on-board DCDC module, comprising a ceramic heat conducting base plate (2), characterized in that: the temperature sensor (11) is fixedly mounted in the middle of the upper surface of the ceramic heat conduction bottom plate (2), the fixed frame (3) is fixedly mounted on the upper surface of the ceramic heat conduction bottom plate (2), a heat dissipation opening (4) is vertically formed in the middle of the upper surface of the fixed frame (3), a heat dissipation fan (10) is fixedly mounted in the heat dissipation opening (4), an air guide pipe (5) is horizontally and fixedly communicated with one side of the fixed frame (3), an electromagnetic valve (6) is arranged on the air guide pipe (5), the other end of the air guide pipe (5) is fixedly communicated with a corrugated expansion pipe (7), and the other end of the corrugated expansion pipe (7) is fixedly communicated with an air guide cover (8).

2. The heat dissipation device for the on-vehicle DCDC module according to claim 1, wherein: and a plurality of groups of uniformly distributed radiating fins (1) are vertically and fixedly arranged on the lower surface of the ceramic heat conduction bottom plate (2).

3. The heat dissipation device for the on-vehicle DCDC module according to claim 1, wherein: and a plurality of groups of uniformly distributed ventilation openings (9) are horizontally formed in one side of the fixing frame (3).

4. The heat dissipation device for the on-vehicle DCDC module according to claim 1, wherein: the air guide cover (8) is trumpet-shaped.

5. The heat dissipation device for the on-vehicle DCDC module according to claim 1, wherein: and the outer openings of the air guide cover (8), the heat dissipation port (4) and the ventilation port (9) are fixedly provided with dustproof mesh covers (12).

6. The heat dissipation device for the on-vehicle DCDC module according to claim 1, wherein: the data output end of the temperature sensor (11) is connected with the data input end of the single chip microcomputer (13) through a lead, and the signal output end of the single chip microcomputer (13) is connected with the signal input ends of the heat dissipation fan (10) and the electromagnetic valve (6) through leads respectively.