CN106907647A - A kind of LED front headlight of motor vehicle heat conducting pipe and its preparation technology - Google Patents
A kind of LED front headlight of motor vehicle heat conducting pipe and its preparation technology Download PDFInfo
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- CN106907647A CN106907647A CN201710166936.5A CN201710166936A CN106907647A CN 106907647 A CN106907647 A CN 106907647A CN 201710166936 A CN201710166936 A CN 201710166936A CN 106907647 A CN106907647 A CN 106907647A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
- F21S45/42—Forced cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/51—Cooling arrangements using condensation or evaporation of a fluid, e.g. heat pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a kind of LED front headlight of motor vehicle heat conducting pipe, including shell, shell is provided with evaporator section, adiabatic section and condensation segment, first passage chamber is provided with evaporator section, second channel chamber is provided with adiabatic section, condensation chamber is provided with condensation segment, and first passage chamber, second channel chamber and condensation chamber are vacuum chamber and fill condensate liquid, first passage chamber cross-sectional area is consistent with second channel chamber cross-sectional area, and condensation chamber cross-sectional area is more than first passage chamber or second channel chamber cross-sectional area.Another aspect in the present invention, additionally provides a kind of preparation technology of LED front headlight of motor vehicle heat conducting pipe.In the present invention, hot gas enter the condensation chamber of relative loose from the first passage chamber and second channel chamber of relative narrowness successively, the bigger condensation chamber of volume makes hot gas reduced velocity flow, that is, have more hot gas to be detained in condensation chamber and radiated, and can effectively improve radiating efficiency.
Description
Technical field
The present invention relates to heat conduction technical field, more particularly to a kind of LED front headlight of motor vehicle heat conducting pipe and its preparation technology.
Background technology
Since G.M.Grver inventions " heat pipe " of LosAlamos National Laboratories of the U.S. in 1963, until in recent years
LED automobile headlight just introduces " heat pipe " technology as radiating subassembly gradually, and heat pipe manufacturing technology is ripe already and universal.At present
The far and near lamplight type of automobile front is marked according to the reflector designed by Halogen lamp LED interior diameter 2~3mm tungsten filament lighting angles
Standard, this particular/special requirement causes all LED heat conducting pipes for being applied to automobile front to be the prolate that whole thickness is below 3mm
Shape copper pipe, and its heat conducting pipe of LED automobile headlight is made using flat or T-shaped in the market, due to flat or T-shaped
Condensation segment cubical content it is few, it is impossible to effectively discharge heat, also therefore allow automobile front lamp bead often in 230 DEG C with
On, cause radiating efficiency very low.
The content of the invention
In order to overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of LED front headlight of motor vehicle heat conducting pipe
And its preparation technology, form second channel chamber due to forming first passage chamber in evaporator section, in adiabatic section, in condensation segment into
Type has condensation chamber, and condensation chamber cross-sectional area is more than first passage chamber or second channel chamber cross-sectional area, hot gas
Enter the condensation chamber of relative loose from the first passage chamber and second channel chamber of relative narrowness successively, the bigger condensation chamber of volume makes
Hot gas reduced velocity flow so that more hot gas are detained in condensation chamber and are radiated, can effectively improve radiating effect
Rate.Can solve the problems, such as very low in the heat conducting pipe radiating efficiency of flat or T-shaped.
The purpose of the present invention is realized using following technical scheme：
A kind of LED front headlight of motor vehicle heat conducting pipe, including shell, shell are provided with evaporator section, adiabatic section and condensation segment, evaporation
First passage chamber is provided with section, second channel chamber is provided with adiabatic section, condensation chamber, first passage chamber, second are provided with condensation segment
Channel lumens and condensation chamber are in fluid communication successively, and first passage chamber, second channel chamber and condensation chamber are vacuum chamber and fill
Condensate liquid,
First passage chamber cross-sectional area is consistent with second channel chamber cross-sectional area, and condensation chamber cross-sectional area is more than the
One channel lumens or second channel chamber cross-sectional area.
Preferably, it is equipped with wick layer on the internal chamber wall in first passage chamber, second channel chamber and condensation chamber.
Preferably, first passage chamber, the cross section in second channel chamber are rectangle, condensation chamber circular in cross-section, ellipse
Circular or polygon.
Preferably, the width of the cross section being rectangle is 1.4mm, rounded cross section with diameter greater than 4.50mm,
Or, the semi-minor axis of the cross section of ovalize is more than 2.25mm.
Preferably, the thickness of shell wall is 0.3mm-1mm.
Preferably, evaporator section, adiabatic section and condensation segment are formed in one structure,
Or, it is fixed together by way of welding between adiabatic section and condensation segment,
Or, shell includes the first laminated structure and the second laminated structure, the first laminated structure and the second laminated structure it
Between be fixed together by welding, so as to form evaporator section, adiabatic section and condensation segment.
Preferably, the thickness of evaporator section and adiabatic section is less than or equal to 3mm in shell, and the thickness of condensation segment is more than in shell
4.5mm。
A kind of preparation technology of LED front headlight of motor vehicle heat conducting pipe,
1) choose the first copper pipe, first copper pipe one end is carried out into undergauge sealing treatment, wherein the first copper pipe comprising evaporator section,
Adiabatic section and condensation segment,
2) the sintering plug that is made stainless steel is inserted in the first copper pipe and is fixed so that sintering plug outer surface with
Gap is formed between first copper pipe inwall,
3) copper powder and Nacl are carried out being mixed to get powders A, or, copper powder and Nacl and alumina fibre are carried out
Powder B is mixed to get, powders A or powder B is poured into gap using vibrating machine,
4) nitrogen is added, is sintered repeatedly at a temperature of 940 DEG C~960 DEG C so that the first passage chamber of evaporator section, thermal insulation
Wick layer is formed on the internal chamber wall of the second channel chamber of section and the condensation chamber of condensation segment,
5) condensate liquid is added in the first copper pipe other end, then first passage chamber, second channel chamber and condensation chamber is carried out very
Manage in vacancy so that first passage chamber, second channel chamber and condensation chamber turn into vacuum chamber, and then the first copper pipe other end is sealed
Mouth treatment.
A kind of preparation technology of LED front headlight of motor vehicle heat conducting pipe,
1) the second copper pipe is chosen, second copper pipe one end is carried out into undergauge sealing treatment, wherein the second copper pipe includes evaporator section
And adiabatic section,
2) the 3rd copper pipe is chosen, the 3rd copper pipe is condensation segment, and the second copper pipe other end and the 3rd copper pipe are welded together,
3) the sintering plug being made stainless steel is sequentially inserted into the 3rd copper pipe and the second copper pipe and is fixed so that burn
Gap is formed between knot plug outer surface and the 3rd copper pipe and the inwall of the second copper pipe,
4) copper powder and Nacl are carried out being mixed to get powder C, or, copper powder and Nacl and alumina fibre are carried out
Powder D is mixed to get, powder C or powder D is poured into gap using vibrating machine,
5) nitrogen is added, is sintered repeatedly at a temperature of 940 DEG C~960 DEG C so that the first passage chamber of evaporator section, thermal insulation
Wick layer is formed on the internal chamber wall of the second channel chamber of section and the condensation chamber of condensation segment,
6) condensate liquid is added in the 3rd copper pipe other end, then first passage chamber, second channel chamber and condensation chamber is carried out very
Manage in vacancy so that first passage chamber, second channel chamber and condensation chamber turn into vacuum chamber, then to being carried out in the 3rd copper pipe other end
Sealing treatment.
A kind of preparation technology of LED front headlight of motor vehicle heat conducting pipe,
1) the first laminated structure and the second laminated structure that punch forming is obtained are chosen,
2) match corresponding first tool in the first laminated structure upper surface and be fixed so that in the first laminated structure
The first void layer is formed between surface and the first tool, corresponding second tool is matched in the second laminated structure upper surface and is carried out
It is fixed so that Second gap layer is formed between the second laminated structure upper surface and the second tool,
3) copper powder and Nacl are carried out being mixed to get powder E, or, copper powder and Nacl and alumina fibre are carried out
Powder F is mixed to get, powder E or powder F is poured into the first void layer and Second gap layer using vibrating machine,
4) nitrogen is added, is sintered repeatedly at a temperature of 940 DEG C~960 DEG C so that the first laminated structure upper surface and the
Two laminated structure upper surfaces form wick layer,
5) weld together the first laminated structure both sides are corresponding with the second sheet both sides so that the first laminated structure and
Two sheets constitute the 4th copper pipe comprising evaporator section, adiabatic section and condensation segment,
6) condensate liquid is added in the 4th copper pipe, then application of vacuum is carried out to the 4th copper pipe so that turned into the 4th copper pipe
Vacuum chamber, then to carrying out sealing treatment in the 4th copper pipe.
Compared to existing technology, the beneficial effects of the present invention are：Due to forming first passage chamber, adiabatic section in evaporator section
Second channel chamber is inside formed, condensation chamber is formed in condensation segment, first passage chamber, second channel chamber and condensation chamber are vacuum
Condensate liquid is simultaneously filled in chamber, and condensation chamber cross-sectional area is more than first passage chamber or second channel chamber cross-sectional area, motor-driven
In the course of the work, LED lamp bead thermal source causes to produce hot gas in evaporator section headlight, and hot gas are successively from narrow
First passage chamber and second channel chamber are rapidly entered in loose condensation chamber, and the bigger condensation chamber of volume subtracts hot gas flow velocity
It is slow, that is, there are more hot gas to be detained in condensation chamber, and the external heat removal system of condensation segment absorbs the heat of hot gas, hyperpyrexia
Gas phase is converted into liquid phase by gas (water vapour) to the cold, because the volume of condensation chamber is bigger, so hot gas (water vapour) exist
Condensation chamber quickly can be converted into liquid phase, i.e. water vapour conversion liquid by gas phase, then adhere to again into wick layer, so
Flowed back in evaporator section along wick layer from condensation segment afterwards, radiating efficiency can be effectively improved.Leading in flat or T-shaped can be solved
The very low problem of heat pipe heat radiation efficiency.
Brief description of the drawings
Fig. 1 is a kind of structural representation of implementation method of LED front headlight of motor vehicle heat conducting pipe of the present invention；
Fig. 2 is the structural representation of the another embodiment of LED front headlight of motor vehicle heat conducting pipe of the present invention；
Fig. 3 is the structural representation of evaporator section and adiabatic section in LED front headlight of motor vehicle heat conducting pipe shown in Fig. 2；
Fig. 4 is the structural representation of condensation segment in LED front headlight of motor vehicle heat conducting pipe shown in Fig. 2；
Fig. 5 is the cross section structure diagram of LED front headlight of motor vehicle heat conducting pipe shown in Fig. 2.
In figure：11st, evaporator section；12nd, adiabatic section；13rd, condensation segment.
Specific embodiment
Below, with reference to accompanying drawing and specific embodiment, the present invention is described further：
Fig. 1-Fig. 5 is referred to, the present invention relates to a kind of LED front headlight of motor vehicle heat conducting pipe, including shell, shell is provided with steaming
Hair section 11, adiabatic section 12 and condensation segment 13.
Evaporator section 11 is the tubular structure of flat, and the thickness of evaporator section 11 is that 3mm (evaporates i.e. in shell wherein in shell
The distance between corresponding both sides of 11 housing outer surfaces of section are 3mm), and the shell wall thickness of evaporator section 11 is 0.3mm in shell.
In the present embodiment, the thickness of evaporator section 11 is 3mm in shell.In other embodiments, evaporator section 11 in shell
Thickness can be changed according to actual conditions, such as in shell the thickness of evaporator section 11 can for 2.4mm, 2.5mm or
2.8mm, as long as ensureing that the thickness of evaporator section 11 in shell is less than or equal to 3mm.
In the present embodiment, the shell wall thickness of evaporator section 11 is 0.3mm in shell.In other embodiments, steamed in shell
The shell wall thickness for sending out section 11 can be changed according to actual conditions, such as the shell wall thickness of evaporator section 11 can be with shell
It is 0.4mm, 0.5mm or 1mm, as long as the shell wall thickness for ensureing evaporator section 11 in shell is 0.3mm-1mm.
Adiabatic section 12 is the tubular structure of flat, and the thickness of adiabatic section 12 is thermal insulation in 3mm, i.e. shell wherein in shell
The distance between corresponding both sides of 12 housing outer surfaces of section are 3mm, and the shell wall thickness of adiabatic section 12 is 0.3mm in shell.
In the present embodiment, the thickness of adiabatic section 12 is 3mm in shell.In other embodiments, adiabatic section 12 in shell
Thickness can be changed according to actual conditions, such as in shell the thickness of adiabatic section 12 can for 2.4mm, 2.5mm or
2.8mm, as long as ensureing that the thickness of adiabatic section 12 in shell is less than or equal to 3mm.
In the present embodiment, the shell wall thickness of adiabatic section 12 is 0.3mm in shell.In other embodiments, in shell absolutely
The shell wall thickness of hot arc 12 can be changed according to actual conditions, such as the shell wall thickness of adiabatic section 12 can be with shell
It is 0.4mm, 0.5mm or 1mm, as long as the shell wall thickness for ensureing adiabatic section 12 in shell is 0.3mm-1mm.
Condensation segment 13 is round tube shape structure, and the thickness of condensation segment 13 is the shell of condensation segment 13 in 8mm, i.e. shell wherein in shell
The distance between corresponding both sides of external surface are 8mm, and the shell wall thickness of condensation segment 13 is 0.3mm in shell.
In the present embodiment, the thickness of condensation segment 13 is 8mm in shell.In other embodiments, condensation segment 13 in shell
Thickness can be changed according to actual conditions, such as the thickness of condensation segment 13 can be 8.8mm or 10mm in shell.
In the present embodiment, the shell wall thickness of condensation segment 13 is 0.3mm in shell.In other embodiments, it is cold in shell
The shell wall thickness of solidifying section 13 can be changed according to actual conditions, such as the shell wall thickness of condensation segment 13 can be with shell
It is 0.4mm, 0.5mm or 1mm, as long as the thickness for ensureing condensation segment 13 in shell is 0.3mm-1mm.
Formed in evaporator section 11 and shaping in second channel chamber, condensation segment 13 is formed in first passage chamber, adiabatic section 12
There is condensation chamber, wherein first passage chamber, second channel chamber and condensation chamber is in fluid communication successively.First passage chamber, second channel chamber
Cross section be rectangle that (first passage chamber cross section refers to the cross section of inboard wall of evaporator section 11, the cross section in second channel chamber
Refer to the cross section of inboard wall of adiabatic section 12), (condensation chamber cross section refers to condensation segment for condensation chamber circular in cross-section or ovalize
13 cross section of inboard wall), first passage chamber cross-sectional area is consistent with second channel chamber cross-sectional area, condensation chamber cross-sectional area
More than first passage chamber or second channel chamber cross-sectional area.The horizontal stroke being wherein rectangle in first passage chamber and second channel chamber
The width in section be 1.4mm, in condensation chamber rounded cross section with diameter greater than 4.50mm, or, in condensation chamber in ellipse
The semi-minor axis of the cross section of shape is more than 2.25mm.
In the present embodiment, condensation chamber circular in cross-section.In other embodiments, condensation chamber cross section can be in polygon
Shape.
In the present embodiment, the width of the cross section being rectangle in first passage chamber and second channel chamber is 1.4mm.At it
In his embodiment, the width of the cross section being rectangle can be changed according to actual conditions, and what is be for example rectangle is transversal
The width in face can be 1.5mm or 1.6mm.
Evaporator section 11, adiabatic section 12 and condensation segment 13 are formed in one structure；Or, evaporator section 11 and adiabatic section 12 are one
Forming structure, and be fixed together by way of welding between adiabatic section 12 and condensation segment 13；Or, shell includes
First laminated structure and the second laminated structure, wherein the first laminated structure and the second laminated structure are obtained by punch forming,
And be fixed together by welding between the first laminated structure and the second laminated structure, so as to form the evaporator section 11, thermal insulation
Section 12 and condensation segment 13 (i.e. formed between the first laminated structure and the second laminated structure the evaporator section 11 first passage chamber,
The second channel chamber of adiabatic section 12 and the condensation chamber of condensation segment 13).The pipe that evaporator section 11, adiabatic section 12 and condensation segment 13 are constituted
The length of shell can in the light of actual conditions be designed.
And first passage chamber, second channel chamber and condensation chamber are vacuum chamber, and first passage chamber, second channel chamber and
Condensate liquid (condensate liquid is ionized water) is filled with condensation chamber, on the internal chamber wall in first passage chamber, second channel chamber and condensation chamber
Form wick layer.In the course of the work, LED lamp bead thermal source causes that the ionized water in evaporator section 11 steams to front headlight of motor vehicle
Hair, so as to produce to form hot gas (water vapour), hot gas (water vapour) are successively from narrow first passage chamber and second
Channel lumens are rapidly entered in loose condensation chamber, and the bigger condensation chamber of volume makes hot gas reduced velocity flow, that is, have more hyperpyrexias
Gas is detained in condensation chamber, and the external heat removal system of condensation segment 13 absorbs the heat of hot gas, hot gas (water vapour)
Gas phase is converted into liquid phase to the cold, because the volume of condensation chamber is bigger, so hot gas (water vapour) can be more in condensation chamber
Liquid phase, i.e. water vapour conversion liquid are converted into by gas phase soon, the cavity wall that condensation chamber is then adhered to again enters in wick layer, from
Condensation segment 13 is flowed back in evaporator section 11 along wick layer, i.e., after water vapour conversion liquid, under the capillary force effect of wick layer
Attachment enters in wick layer, is then flowed back to along wick layer in evaporator section 11 from condensation segment 13, can effectively improve radiating
Efficiency.
Another aspect in the present invention, additionally provides a kind of a kind of preparation technology of LED front headlight of motor vehicle heat conducting pipe:
1) the first copper pipe is chosen, first copper pipe one end is carried out into undergauge sealing treatment, wherein the first copper pipe includes evaporator section
11st, adiabatic section 12 and condensation segment 13,
2) the sintering plug that is made stainless steel is inserted in the first copper pipe and is fixed so that sintering plug outer surface with
Gap is formed between first copper pipe inwall,
3) copper powder and Nacl are carried out being mixed to get powders A, or, copper powder and Nacl and alumina fibre are carried out
Powder B is mixed to get, powders A or powder B is poured into the gap using vibrating machine,
4) nitrogen is added, is sintered repeatedly at a temperature of 940 DEG C~960 DEG C so that the first passage of the evaporator section 11
Wick layer is formed on the internal chamber wall of the condensation chamber in chamber, the second channel chamber of adiabatic section 12 and condensation segment 13,
5) condensate liquid is added in the first copper pipe other end, then first passage chamber, second channel chamber and condensation chamber is carried out very
Manage in vacancy so that the first passage chamber, second channel chamber and condensation chamber turn into vacuum chamber (further to improve first passage
The vacuum in chamber, second channel chamber and condensation chamber, must carry out secondary degasification, i.e. heating evaporation section by residual air in the first copper pipe
11 cause that water vapour extrudes to the other end residual air from one end in the first copper pipe, and then it is outer to drain into pipe), then to the first bronze medal
The pipe other end carries out sealing treatment, completes the making of heat conducting pipe.
Another aspect in the present invention, additionally provides a kind of the another of LED front headlight of motor vehicle heat conducting pipe and prepares work
Skill:
1) the second copper pipe is chosen, second copper pipe one end is carried out into undergauge sealing treatment, wherein the second copper pipe includes evaporator section
11 and adiabatic section 12,
2) the 3rd copper pipe is chosen, the 3rd copper pipe is condensation segment 13, and the second copper pipe other end and the 3rd copper pipe are welded on into one
Rise,
3) the sintering plug being made stainless steel is sequentially inserted into the 3rd copper pipe and the second copper pipe and is fixed so that burn
Gap is formed between knot plug outer surface and the 3rd copper pipe and the inwall of the second copper pipe,
4) copper powder and Nacl are carried out being mixed to get powder C, or, copper powder and Nacl and alumina fibre are carried out
Powder D is mixed to get, powder C or powder D is poured into the gap using vibrating machine,
5) nitrogen is added, is sintered repeatedly at a temperature of 940 DEG C~960 DEG C so that the first passage of the evaporator section 11
Wick layer is formed on the internal chamber wall of the condensation chamber in chamber, the second channel chamber of adiabatic section 12 and condensation segment 13,
6) condensate liquid is added in the 3rd copper pipe other end, then first passage chamber, second channel chamber and condensation chamber is carried out very
Manage in vacancy so that the first passage chamber, second channel chamber and condensation chamber turn into vacuum chamber (further to improve first passage
The vacuum in chamber, second channel chamber and condensation chamber, must carry out secondary degasification, i.e., by residual air in the second copper pipe and the 3rd copper pipe
Heating evaporation section 11 causes that water vapour extrudes to the 3rd copper pipe other end residual air from one end in the second copper pipe, and then drains into
Pipe is outer), then to carrying out sealing treatment in the 3rd copper pipe other end, complete the making of heat conducting pipe.
Another aspect in the present invention, additionally provides a kind of the third preparation work of LED front headlight of motor vehicle heat conducting pipe
Skill:
1) the first laminated structure and the second laminated structure that punch forming is obtained are chosen,
2) match corresponding first tool in the first laminated structure upper surface and be fixed so that the first sheet knot
The first void layer is formed between structure upper surface and the first tool, matching corresponding second is controlled in the second laminated structure upper surface
Have and be fixed so that Second gap layer is formed between the second laminated structure upper surface and the second tool,
3) copper powder and Nacl are carried out being mixed to get powder E, or, copper powder and Nacl and alumina fibre are carried out
Powder F is mixed to get, powder E or powder F is poured into first void layer and Second gap layer using vibrating machine,
4) nitrogen is added, is sintered repeatedly at a temperature of 940 DEG C~960 DEG C so that the first laminated structure upper surface and the
Two laminated structure upper surfaces form wick layer,
5) weld together the first laminated structure both sides are corresponding with the second sheet both sides so that the first laminated structure and
Two sheets constitute the 4th copper pipe comprising evaporator section 11, adiabatic section 12 and condensation segment 13,
6) condensate liquid is added in the 4th copper pipe, then application of vacuum is carried out to the 4th copper pipe so that turned into the 4th copper pipe
Vacuum chamber (further to improve the vacuum of first passage chamber, second channel chamber and condensation chamber, must be by residual air in four copper pipes
Carry out secondary degasification, i.e. heating evaporation section 11 and cause that water vapour extrudes to the other end residual air from one end in four copper pipes, enter
And it is outer to drain into pipe), then to carrying out sealing treatment in the 4th copper pipe, complete the making of heat conducting pipe.
During using the present invention, second channel is formed due to being formed in evaporator section 11 in first passage chamber, adiabatic section 12
Condensation chamber is formed in chamber, condensation segment 13, wherein first passage chamber, second channel chamber and condensation chamber is in fluid communication successively, and
First passage chamber, second channel chamber and condensation chamber are filling in vacuum chamber, and first passage chamber, second channel chamber and condensation chamber
Condensate liquid (condensate liquid is ionized water), capillary is formed on the internal chamber wall in first passage chamber, second channel chamber and condensation chamber
Sandwich layer, and condensation chamber cross-sectional area is more than first passage chamber or second channel chamber cross-sectional area, and front headlight of motor vehicle exists
In the course of work, LED lamp bead thermal source causes the ion water evaporation in evaporator section 11, so as to produce to form hot gas (water steaming
Vapour), during hot gas (water vapour) rapidly enter loose condensation chamber from narrow first passage chamber and second channel chamber successively,
The bigger condensation chamber of volume makes hot gas reduced velocity flow, that is, have more hot gas to be detained in condensation chamber, and condensation segment 13
External heat removal system absorbs the heat of hot gas, and gas phase is converted into liquid phase by hot gas (water vapour) to the cold, due to condensation
The volume in chamber is bigger, so hot gas (water vapour) quickly can be converted into liquid phase, i.e. water vapour in condensation chamber by gas phase
Conversion liquid, then adheres into wick layer again, is then flowed back to along wick layer in evaporator section 11 from condensation segment 13, i.e. water
After steam conversion liquid, adhere under the capillary force effect of wick layer and enter in wick layer, then from condensation segment 13 along hair
Thin sandwich layer is flowed back to and reused in evaporator section 11, can effectively improve radiating efficiency.The heat conducting pipe in flat or T-shaped can be solved
The very low problem of radiating efficiency.Another aspect in the present invention, additionally provides a kind of LED front headlight of motor vehicle heat conducting pipe
Preparation technology.
It will be apparent to those skilled in the art that technical scheme that can be as described above and design, make other various
It is corresponding to change and deformation, and all these change and deformation should all belong to the protection domain of the claims in the present invention
Within.
Claims (10)
1. a kind of LED front headlight of motor vehicle heat conducting pipe, it is characterised in that including shell, the shell is provided with evaporator section, adiabatic section
And condensation segment, first passage chamber is provided with the evaporator section, second channel chamber is provided with the adiabatic section, set in the condensation segment
There is condensation chamber, the first passage chamber, second channel chamber and condensation chamber are in fluid communication successively, and the first passage chamber,
Two channel lumens and condensation chamber are vacuum chamber and fill condensate liquid,
First passage chamber cross-sectional area is consistent with second channel chamber cross-sectional area, condensation chamber cross section face
Product is more than the first passage chamber or second channel chamber cross-sectional area.
2. LED front headlight of motor vehicle heat conducting pipe according to claim 1, it is characterised in that the first passage chamber, second
Wick layer is equipped with the internal chamber wall of channel lumens and condensation chamber.
3. LED front headlight of motor vehicle heat conducting pipe according to claim 1, it is characterised in that the first passage chamber, second
The cross section of channel lumens is rectangle, the condensation chamber circular in cross-section, oval or polygon.
4. LED front headlight of motor vehicle heat conducting pipe according to claim 3, it is characterised in that it is described be rectangle it is transversal
The width in face be 1.4mm, the rounded cross section with diameter greater than 4.50mm, or, the cross section of the ovalize
Semi-minor axis be more than 2.25mm.
5. LED front headlight of motor vehicle heat conducting pipe according to claim 1, it is characterised in that the thickness of the shell wall is
0.3mm-1mm。
6. LED front headlight of motor vehicle heat conducting pipe according to claim 1, it is characterised in that the evaporator section, adiabatic section and
Condensation segment is formed in one structure,
Or, it is fixed together by way of welding between the adiabatic section and condensation segment,
Or, the shell includes the first laminated structure and the second laminated structure, first laminated structure and the second sheet knot
It is fixed together by welding between structure, so as to form the evaporator section, adiabatic section and condensation segment.
7. LED front headlight of motor vehicle heat conducting pipes according to any one of claim 1-6, it is characterised in that the shell
The thickness of middle evaporator section and adiabatic section is less than or equal to 3mm, and the thickness of condensation segment is more than 4.5mm in the shell.
8. a kind of preparation technology of LED front headlight of motor vehicle heat conducting pipe, it is characterised in that
1) the first copper pipe is chosen, first copper pipe one end is carried out into undergauge sealing treatment, wherein the first copper pipe includes evaporator section, thermal insulation
Section and condensation segment,
2) the sintering plug being made stainless steel is inserted in the first copper pipe and is fixed so that sintering plug outer surface and first
Gap is formed between copper pipe inwall,
3) copper powder and Nacl are carried out being mixed to get powders A, or, copper powder and Nacl and alumina fibre are mixed
Powder B is obtained, powders A or powder B is poured into the gap using vibrating machine,
4) nitrogen is added, is sintered repeatedly at a temperature of 940 DEG C~960 DEG C so that the first passage chamber of the evaporator section, thermal insulation
Wick layer is formed on the internal chamber wall of the second channel chamber of section and the condensation chamber of condensation segment,
5) condensate liquid is added in the first copper pipe other end, then first passage chamber, second channel chamber and condensation chamber is carried out at vacuum
Reason so that the first passage chamber, second channel chamber and condensation chamber turn into vacuum chamber, are then sealed to the first copper pipe other end
Mouth treatment.
9. a kind of preparation technology of LED front headlight of motor vehicle heat conducting pipe, it is characterised in that
1) the second copper pipe is chosen, second copper pipe one end is carried out into undergauge sealing treatment, wherein the second copper pipe is comprising evaporator section and absolutely
Hot arc,
2) the 3rd copper pipe is chosen, the 3rd copper pipe is condensation segment, and the second copper pipe other end and the 3rd copper pipe are welded together,
3) the sintering plug being made stainless steel is sequentially inserted into the 3rd copper pipe and the second copper pipe and is fixed so that sintering core
Gap is formed between rod outer surface and the 3rd copper pipe and the inwall of the second copper pipe,
4) copper powder and Nacl are carried out being mixed to get powder C, or, copper powder and Nacl and alumina fibre are mixed
Powder D is obtained, powder C or powder D is poured into the gap using vibrating machine,
5) nitrogen is added, is sintered repeatedly at a temperature of 940 DEG C~960 DEG C so that the first passage chamber of the evaporator section, thermal insulation
Wick layer is formed on the internal chamber wall of the second channel chamber of section and the condensation chamber of condensation segment,
6) condensate liquid is added in the 3rd copper pipe other end, then first passage chamber, second channel chamber and condensation chamber is carried out at vacuum
Reason so that the first passage chamber, second channel chamber and condensation chamber turn into vacuum chamber, then to being carried out in the 3rd copper pipe other end
Sealing treatment.
10. a kind of preparation technology of LED front headlight of motor vehicle heat conducting pipe, it is characterised in that
1) the first laminated structure and the second laminated structure that punch forming is obtained are chosen,
2) match corresponding first tool in the first laminated structure upper surface and be fixed so that in the first laminated structure
The first void layer is formed between surface and the first tool, corresponding second tool is matched simultaneously in the second laminated structure upper surface
It is fixed so that Second gap layer is formed between the second laminated structure upper surface and the second tool,
3) copper powder and Nacl are carried out being mixed to get powder E, or, copper powder and Nacl and alumina fibre are mixed
Powder F is obtained, powder E or powder F is poured into first void layer and Second gap layer using vibrating machine,
4) nitrogen is added, is sintered repeatedly at a temperature of 940 DEG C~960 DEG C so that the first laminated structure upper surface and second
Shape structure upper surface forms wick layer,
5) weld together the first laminated structure both sides are corresponding with the second sheet both sides so that the first laminated structure and second
Shape constitutes the 4th copper pipe comprising evaporator section, adiabatic section and condensation segment,
6) condensate liquid is added in the 4th copper pipe, then application of vacuum is carried out to the 4th copper pipe so that turn into vacuum in the 4th copper pipe
Chamber, then to carrying out sealing treatment in the 4th copper pipe.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710166936.5A CN106907647A (en) | 2017-03-20 | 2017-03-20 | A kind of LED front headlight of motor vehicle heat conducting pipe and its preparation technology |
| TW106115806A TWI615579B (en) | 2017-03-20 | 2017-05-12 | LED motor vehicle headlight heat pipe and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710166936.5A CN106907647A (en) | 2017-03-20 | 2017-03-20 | A kind of LED front headlight of motor vehicle heat conducting pipe and its preparation technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106907647A true CN106907647A (en) | 2017-06-30 |
Family
ID=59194542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710166936.5A Pending CN106907647A (en) | 2017-03-20 | 2017-03-20 | A kind of LED front headlight of motor vehicle heat conducting pipe and its preparation technology |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106907647A (en) |
| TW (1) | TWI615579B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107388154A (en) * | 2017-07-17 | 2017-11-24 | 海蓝星光学科技(东莞)有限公司 | A kind of special heat conducting pipe of LED front headlight of motor vehicle and its preparation technology |
| CN107511548A (en) * | 2017-08-21 | 2017-12-26 | 佛山东智明光电科技有限公司 | A kind of welding procedure and fixture of vacuum heat conduction pipe and copper base |
| CN108317481A (en) * | 2018-03-03 | 2018-07-24 | 洛阳文森科技有限公司 | A kind of the automobile LED headlight and technique of pulsating heat pipe cooling |
| CN111656090A (en) * | 2018-01-30 | 2020-09-11 | 海拉有限双合股份公司 | Headlamp for vehicle with cooling device for semiconductor lighting mechanism |
| CN112040719A (en) * | 2017-12-26 | 2020-12-04 | 讯凯国际股份有限公司 | Heat radiation structure |
| US20230296236A1 (en) * | 2020-08-11 | 2023-09-21 | Signify Holding B.V. | System comprising luminescent material and two-phase cooling device |
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| CN107388154A (en) * | 2017-07-17 | 2017-11-24 | 海蓝星光学科技(东莞)有限公司 | A kind of special heat conducting pipe of LED front headlight of motor vehicle and its preparation technology |
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Also Published As
| Publication number | Publication date |
|---|---|
| TWI615579B (en) | 2018-02-21 |
| TW201835501A (en) | 2018-10-01 |
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