CN207604107U

CN207604107U - A kind of radiator of HUD

Info

Publication number: CN207604107U
Application number: CN201721362493.9U
Authority: CN
Inventors: 吕湘连; 穆建飞; 吕涛
Original assignee: Jiangsu New Vision Automotive Electronics Co Ltd
Current assignee: Jiangsu New Vision Automotive Electronics Co Ltd
Priority date: 2017-10-23
Filing date: 2017-10-23
Publication date: 2018-07-10
Anticipated expiration: 2027-10-23

Abstract

The utility model discloses a kind of radiators of HUD, belong to vehicle electric field.The structure includes the heat conductive silica gel (1), heat pipe (2), the fin structure (3) that are attached on ray machine lamp plate；The heat pipe (2) is in direct contact the heat conductive silica gel (1), the heat conductive silica gel (1) heat is passed to far from described ray machine one end, while heat pipe (2) is embedded in the heat conduction fin (3) from the heat pipe (2) one end.The utility model proposes HUD radiator structures, the heat source of x ray machine part 1 is transmitted to copper pipe and radiating fin by heat conductive silica gel 2, heat pipe has good heat conductivility, copper pipe absorbs heat first, when one end is heated, evaporation flows to other end to liquid in capillary rapidly, and release heat, regelation is into liquid, evaporator section is flowed back in effect of the liquid again along porous material by capillary force, so recycles, and heat reaches other end by one end, radiating fin distributes heat to the external world, to reach cooling function.

Description

A kind of radiator of HUD

Technical field

The utility model is related to a kind of radiators of HUD, belong to vehicle electric field.

Background technology

Head up display (HUD, Head Up Display) is the flight supplementary instrument on aircraft at present of early stage application on aircraft.With The development of science and technology, head-up display is also used on automobile more and more.Head-up display on automobile can By important running information, such as speed, engine revolution, oil consumption, tire pressure, the information of navigation and external smart machine are real-time Ground is shown on front windshield in the visual field of driver, so that driver need not bow, it is possible to see running information, So as to avoid disperseing the attention to road ahead, potential driving hidden danger is eliminated；Moreover, because the virtual image is fallen in vehicle during projection Front, the time that driver adjusts visual focal length will shorten, safer for driver.Simultaneously so that driver Eyes need not be adjusted between the road in an observation distant place and instrument nearby, can greatly increased to avoid the fatigue of eyes Vehicle is complete by force and improves driving experience.

Existing head up display is usually made of enclosed main body frame, and various electricity can be accommodated inside the main body frame Device element (such as ray machine, loud speaker).During energization is used, electric elements can send out a large amount of heat, be based especially on The HUD of TFT liquid crystal display technologies, ray machine calorific value is very big, and therefore, the main body frame of enclosed construction inevitably radiates The problem of.Refering to Fig. 1, a kind of head up display radiator structure in the prior art, in order to save space and only with metal It conducts heat, in the structure, ray machine heat dissipation is direct contact type radiator structure, passes through the heat radiation fin structure of HUD own metal bottom cases 3, by the ray machine heat transfer of light source assembly 4 to the external world.The heat radiation fin structure 3 is die casting constructed of aluminium, and heat conduction is slow, efficiency Low, heat dissipation is uneven, and required heat-conducting area is larger, cannot be passed to away in time so as to cause due to heat, the ray machine of light source assembly 4 Temperature is too high to cause LCD screen to burn out；And the heat radiation fin structure 3 is larger for the area of required HUD bottom cases heat dissipation, in vehicle Middle the space occupied is also larger.

Invention content：

The purpose of the present invention is：Slow to solve HUD radiator structures heat conduction in the prior art, efficiency is low, uneven, institute of radiating Need heat-conducting area larger, the deficiencies of radiator structure occupied space is big proposes a kind of novel HUD radiators.

The technical scheme is that：A kind of heat spreader structures of HUD, including heat conductive silica gel (1), heat pipe (2), fin knot Structure (3)；

The heat conductivility and contact performance that the heat conductive silica gel (1) has had, the heat conductive silica gel (1) can be very good It is attached on ray machine lamp plate, the heat conductivility made good use of transfers heat away from coming；

The heat pipe (2) is a kind of heat transfer element with very high thermal conductivity, generally by shell, liquid-sucking core and end cap group Into it is to be pumped into negative pressure state that the heat pipe (2) is internal, is filled with appropriate liquid, this boiling point of liquid is low, readily volatilized.Institute Stating heat pipe (2) tube wall has liquid-sucking core, is made of capillary-porous material.(2) one sections of the heat pipe is evaporation ends, is in addition for one section Condensation end, when one end is heated, the liquid in capillary evaporates rapidly, and steam flows to other one under small pressure differential End, and heat is released, regelation flows back to evaporator section into liquid, effect of the liquid again along porous material by capillary force, such as This cycle is more than, and heat reaches other end by one end.This cycle quickly carries out, and heat can be by continuously It conducts and；The heat pipe (2) is in direct contact the heat conductive silica gel (1), by the heat conductive silica gel (1) heat from the heat pipe (2) one end is passed to far from described ray machine one end.Heat pipe (2) is passed by the evaporation of the liquid in Totally enclosed vacuum pipe with condensation Heat is passed, using fluid principles such as capillarities, plays the effect of similar freezer compressor refrigeration.With very high thermal conductivity, Excellent isothermal, heat flow density changeability, direction of heat flow drink invertibity, can remotely transferring, thermostatic characteristics (controllable heat pipe), The series of advantages such as thermal diode and thermal switch performance, and it is tight with heat transfer efficiency height, structure by the heat exchanger that heat pipe forms It gathers, the advantages that small is damaged in fluid resistance.

The heat pipe (2) is embedded in the heat conduction fin (3), and heat pipe (2) is transferred out what is come by the heat conduction fin (3) Heat is dispersed into the external world；So as to fulfill the high efficiency of heat conduction, heat dissipation is uniform, prevents because ray machine temperature cannot be transmitted and be caused in time Ray machine the problem of burning out.

Further, in other can use fan environment, one or more can be installed at heat conduction fin (3) rear portion A fan is more advantageous to radiating.

Beneficial effects of the present invention：Pass through above technical scheme and its job analysis, it can be seen that the present invention proposes HUD radiator structures, the heat source of x ray machine part 4 is transmitted to heat pipe (2) and radiating fin by heat conductive silica gel 1, and heat pipe has good Good heat conductivility, heat pipe (2) absorbs heat first, and when one end is heated, the liquid in capillary evaporates rapidly, and steam exists Other end is flowed under small pressure differential, and releases heat, regelation leans on hair along porous material again into liquid, liquid Evaporator section is flowed back in the effect of thin power, and so cycle is more than, and heat reaches other end by one end.This cycle is quickly to carry out , heat, which can be conducted continuously, to be come, and radiating fin distributes heat to the external world, to reach cooling function.In this way It is big that HUD ray machine calorific values can effectively be solved, a part of electric energy is converted to light when ray machine works, and a part is converted to caused by heat Ray machine problems of excessive heat, be reduced to operating temperature range so as to fulfill by ray machine temperature, extend the ray machine service life, ensure that ray machine shines Efficiency.And it is compact-sized, radiating efficiency is high, can effectively reduce structure occupied space.

Description of the drawings

Fig. 1 is the HUD radiator structures for not using heat pipe in the prior art

Fig. 2 be the utility model proposes the HUD radiator structures using heat pipe

Fig. 3 is the detonation configuration figure of Fig. 2.

In figure, 1- heat conductive silica gels, 2- heat pipes, 3- fin structures, 4- light source assemblies.

Specific embodiment

HUD heat spreader structures in the present embodiment, including heat conductive silica gel (1), heat pipe (2), fin structure (3), three portions The ray machine of part and HUD are combined as an entirety；Heat conductive silica gel (1) in this example is attached on ray machine lamp plate, and that makes good use of leads Hot property transfers heat away from coming；Heat pipe (2) in this example is 4, is in direct contact the heat conductive silica gel (1), is led described Hot silica gel (1) heat is passed to from the heat pipe (2) one end far from described ray machine one end.Every heat pipe (2) by shell, liquid-sucking core and End cap forms, and it is to be pumped into negative pressure state that the heat pipe (2) is internal, is filled with alcohol or water.Heat pipe (2) tube wall has imbibition Core, capillary-porous material are formed for copper powders.Heat pipe (2) is the phase transformation condensed after being evaporated using medium in hot junction in cold end Journey that is, using the evaporation latent heat of liquid and the latent heat of condensation, makes heat quickly conduct.Hot junction is in lower part in this scheme, and cold end is upper Portion.The volume on top and surface area ratio lower part are big, and the heat dissipation on top is better than lower part.The heat pipe (2) is embedded in the heat conduction In fin (3).Heat conduction fin (3) material is aluminium alloy or copper in this example.

Claims

1. a kind of heat spreader structures of HUD, which is characterized in that including heat conductive silica gel (1), heat pipe (2), fin structure (3)；

The heat conductive silica gel (1) is attached on ray machine lamp plate；

The heat pipe (2) is made of shell, liquid-sucking core and end cap, and it is to be pumped into negative pressure state that heat pipe (2) is internal, is filled with liquid； Heat pipe (2) shell has liquid-sucking core, is made of capillary-porous material, both ends are end cap；The heat pipe (2) is in direct contact described lead Hot silica gel (1) passes to the heat conductive silica gel (1) heat far from described ray machine one end from the heat pipe (2) one end；

The heat pipe (2) is embedded in the fin structure (3).

2. a kind of heat spreader structures of HUD as described in claim 1, which is characterized in that pacify at the fin structure (3) rear portion The one or more fans of dress.