CN203687710U - Novel heat radiator - Google Patents
Novel heat radiator Download PDFInfo
- Publication number
- CN203687710U CN203687710U CN201320689748.8U CN201320689748U CN203687710U CN 203687710 U CN203687710 U CN 203687710U CN 201320689748 U CN201320689748 U CN 201320689748U CN 203687710 U CN203687710 U CN 203687710U
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- Prior art keywords
- heat pipe
- platelike
- evaporator section
- heat
- new radiator
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- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 239000000758 substrate Substances 0.000 claims description 21
- 238000009833 condensation Methods 0.000 claims description 16
- 230000005494 condensation Effects 0.000 claims description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000005855 radiation Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model provides a novel heat radiator. The novel heat radiator comprises a plurality of tabular heat pipes, wherein the tabular heat pipes are arranged on the heating surface of a heating element as a combination, and the tabular heat pipes are formed by that a plurality of miniature independent heat pipe structural bodies of which the pipe side walls are connected with each other are arranged in a heating panel along the panel surface in parallel; the tabular heat pipes are divided into evaporating sections and condensing sections along the axis direction of the miniature independent heat pipes, whole or part of the evaporating sections are attached with the heating surface of the heating element, and the condensing section are free panel surfaces which are in contact with air. The volume and the weight of the heat radiator can be greatly reduced, and the heat radiating efficiency is increased.
Description
Technical field
The utility model relates to a kind of radiator, is particularly arranged on the radiator on frequency converter, power electronic devices and other heaters.
Background technology
Frequency converter is application converter technique and microelectric technique, controls the electric control appliance of ac motor by changing machine operation supply frequency mode.The IGBT(Insulated Gate Bipolar Transistor of the inner portion of frequency converter, insulated gate bipolar transistor) voltage and the frequency of cut-offfing to adjust out-put supply, provide its needed supply voltage according to the actual needs of motor, and then reach object energy-conservation, speed governing.Along with improving constantly of industrial automatization, frequency converter has also obtained application very widely.
Frequency converter can produce a large amount of heat in the course of the work, and main heat producing components is IGBT and rectifier bridge.The fault rate of frequency converter raises and increases sharply with temperature, and raise and fast-descending service life with temperature.Therefore, frequency converter must be equipped with applicable radiator to reduce operating temperature.
Fig. 1 has shown the basic structure of existing frequency converter radiator.Radiator comprises the substrate 12 of heat conduction, substrate 12 comprises again heat source-contacting surface 14 and heat pipe installed surface 13, the radiating surface transmission of heat by contact of heat source-contacting surface 14 and frequency converter, on heat pipe installed surface 13, be provided with many rows of sockets or numerous jack, on heat pipe installed surface 13, by inserting slot or jack, some heat pipes 10 are installed, on the radiating segment of heat pipe 10, be provided with radiating fin 11, radiating fin 11 is generally copper sheet or aluminium flake.Heat pipe 10 be a sealing, in it for copper pipe of vacuum, in copper pipe, be marked with liquid refrigerant, copper pipe is circular tube conventionally.Existing frequency converter by the problem that radiator exists is: be limited to conventional heat pipe specific area little, single heat pipe cryosurface and fin contact-making surface are little, the not high inherent shortcoming of fin efficiency, and the volume of single heat pipe is larger, fin contact and spacing are unreasonable etc., thereby cause the volume of frequency converter radiator integral, weight larger, and cost is high, air flow channel easily stops up, technique is loaded down with trivial details.
Equally, various types of power electronic devices must arrange the occasion of radiator due to device heating problem, and existing radiator has the problems referred to above.There are equally these problems in the heat radiation of other heaters.
Utility model content
In order to solve the problems such as volume, weight that in prior art, radiator exists are large, air flow channel easily stops up and cost is high, technique is loaded down with trivial details, the utility model provides a kind of new radiator, have volume little, lightweight, air flow channel is difficult for blocking, cost is low and the simple advantage of technique.
The technical solution of the utility model is as follows:
New radiator, comprises that combination is arranged on many Platelike heat pipes on heater heating face, and described Platelike heat pipe is multiple miniature independent heat pipe structure body that be set up in parallel along plate face in heat sink, the interconnection of pipe sidewall; Described Platelike heat pipe is divided into evaporator section and condensation segment along the axis direction of described miniature independent heat pipe, all or part of and described heater heating face laminating of described evaporator section, and described condensation segment is the free plate face contacting with air.
The part of not being combined with heating face with evaporator section on the condensation segment of described Platelike heat pipe is provided with radiating fin.
The thickness of described Platelike heat pipe is between 0.5mm to 10mm, and the equivalent diameter of described miniature independent heat pipe is between 0.1mm to 8mm time, and the length ratio of the length of described evaporator section and described Platelike heat pipe axis direction is 1:5 to 1:100000.
The thickness of described Platelike heat pipe is between 1.0mm to 4mm, and the equivalent diameter of described miniature independent heat pipe is between 0.3mm to 3mm time, and the length ratio of the length of described evaporator section and described Platelike heat pipe axis direction is 1:10 to 1:200.
Described heater is the substrate contacting with thermal source, described substrate comprises heat source-contacting surface and heat pipe installed surface, on described heat pipe installed surface, be provided with and arrange sidewalls more the slot that is plane, mate with described evaporator section part, described Platelike heat pipe inserts slot by described evaporator section and is fixed on described substrate, and part or all of plate face and the socket sidewalls of described evaporator section fits tightly.
The thickness of described Platelike heat pipe is between 0.5mm to 10mm, and the equivalent diameter of described miniature independent heat pipe is between 0.1mm to 8mm time, and the length ratio of the height of described slot and described Platelike heat pipe axis direction is 1:5 to 1:100000.
The thickness of described Platelike heat pipe is between 1.0mm to 4mm, and the equivalent diameter of described miniature independent heat pipe is between 0.3mm to 3mm time, and the length ratio of the height of described slot and described Platelike heat pipe axis direction is 1:10 to 1:200.
In a certain slot on described heat pipe installed surface, be set up in parallel multiple described Platelike heat pipes along flute length direction.
Described new radiator is frequency converter radiator, when after described frequency converter radiator assembling, above the above condensation segment of gravity direction is positioned at described evaporator section.
Described heat source-contacting surface is parallel with heat pipe installed surface, and described Platelike heat pipe favours the setting of described heat pipe installed surface.
The material of described substrate and described Platelike heat pipe is aluminum or aluminum alloy.
Described Platelike heat pipe is micro heat pipe array Platelike heat pipe.
Technique effect of the present utility model: have volume little, lightweight, air flow channel is difficult for blocking, the low and simple advantage of technique of cost.
The utility model new radiator, adopt Platelike heat pipe as thermal component, because Platelike heat pipe is the platy structure being formed by multiple miniature independent heat pipes, therefore compare the traditional round heat pipe that specific area is little and have the advantages that specific area is large, so not just as conventional heat pipe plays conductive force, and mainly play a part to air to dispel the heat, because area of dissipation is large, therefore can not need on Platelike heat pipe, to arrange again fin, just can realize the function of the radiator heat-dissipation forming with the round heat pipe of fin, air flow channel is difficult for blocking like this.Due to contact area and area of dissipation large, simultaneously heat conduction is fast, the therefore existing radiator of relatively same heat dissipation capacity, volume is little, Platelike heat pipe can adopt lightweight metal material extruding to make, and compares existing copper coin heat pipe, not only lightweight, and cost is low, technique is simple.
With respect to existing frequency converter and power electronic devices radiator, the utility model has substituted traditional round heat pipe of the prior art with Platelike heat pipe, because socket sidewalls is plane, the plate face of the evaporator section of Platelike heat pipe is larger than round heat pipe with the contact-making surface of socket sidewalls, can ensure more transmission of heat by contact face, reduce thermal contact resistance, in Platelike heat pipe, unit volume hot working fluid conduction surface is large simultaneously, and because being pegs graft, than the convenient welding of round heat pipe and practicality.Platelike heat pipe is owing to there being the specific area more much bigger than round heat pipe, and condensing heat-exchange face both can be own as fin and air heat-exchange, also can be in conjunction with traditional fin heat radiation, and fin efficiency is high, therefore high than the heat transfer efficiency of existing round heat pipe.Therefore, at heat output under large and this prerequisite of efficiency height, frequency converter and power electronic devices are little with the volume of heat pipe in the volume ratio prior art of the Platelike heat pipe of radiator, also make overall volume, the weight of the utility model frequency converter and power electronic devices radiator reduce over half, realized the purpose of this utility model.
Brief description of the drawings
Fig. 1 is the structure chart of existing frequency converter radiator.
Fig. 2 is the structure chart of the utility model new type inverter.
Fig. 3 is the structural representation vertically arranging perpendicular to substrate surface on substrate.
Fig. 4 is the schematic diagram that installs fin on flat-plate heat pipe 20 additional.
In figure, mark is described as follows:
10, heat pipe; 11, radiating fin; 12, substrate; 13, heat pipe installed surface; 14, heat source-contacting surface;
20, Platelike heat pipe; 21, heat pipe installed surface; 22, heat source-contacting surface; 23, substrate;
41, radiating fin.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is elaborated.
Fig. 2 and Fig. 3 have shown the example of the utility model new radiator for frequency converter heat radiation, and in Fig. 3, substrate 23 is analysed and observe.Frequency converter and power electronic devices new radiator, comprise substrate 23.Substrate 23 can be considered the one of heater, is combined with thermal source, comprises 21 two plate faces parallel to each other of heat source-contacting surface 22 and heat pipe installed surface, and heater itself can be also thermal source certainly, such as chip.Heat source-contacting surface 22 for frequency converter heat producing components (for example IGBT and rectifier bridge) thermal contact conductance.On the heat pipe installed surface 21 of substrate 23, be provided with the slots that many row's sidewalls are plane, Platelike heat pipe 20 is inserted in described slot and its evaporator section and slot side fit tightly.In Platelike heat pipe 20, be formed by connecting side by side along plate face by multiple miniature independent heat pipes, miniature independent heating pipe sidewall interconnection.Described miniature independent heat pipe is sealed tubular structure, has wherein been provided with the working medium of phase-change heat-exchange effect, adopts ram extrusion mode can obtain Platelike heat pipe 20 of the present utility model to the heat sink such as aluminium sheet, copper coin.Because the radiating efficiency of the Platelike heat pipe 20 of area of dissipation will be higher than existing radiator (example is radiator as shown in Figure 1) on an equal basis, therefore, frequency converter of the present utility model and power electronic devices can reduce with the volume of new radiator, and weight is corresponding reduction also.For big-power transducer (IGBT) heat radiation, the utility model weight, volume are all traditional round heat pipe and add below 1/3rd of fin radiator.Dispel the heat for the above LED of 600W, for unique in the world can practical heat radiation product.For other dissipation from electronic devices, can not use fan just can realize the cooling of existing electronic device the utility model, will make dissipation from electronic devices step into the fan-free epoch.
As seen from Figure 2, Platelike heat pipe 20 favours heat pipe installed surface 21 and arranges, due to heat source-contacting surface 22 and heat pipe installed surface 21 parallel to each other, Platelike heat pipe 20 also favours heat source-contacting surface 22.This main purpose that is obliquely installed of Platelike heat pipe 20 is after making radiator be assembled on frequency converter, above the above condensation segment of gravity direction is positioned at described evaporator section.
Certainly, example shown in Fig. 2 and Fig. 3 can also install radiating fin 41 as shown in Figure 4 additional on Platelike heat pipe 20.Radiating fin 41 is installed at the part that condensation segment and evaporator section are not combined with heating face, the radiating fin 41 installing additional adopts the metal foil fin of prior art can increase area of dissipation, improving radiating effect, also can suitably reduce the quantity of Platelike heat pipe 20, radiating fin 41 in concrete employing Fig. 4, does not repeat them here.
Shown in preferred Fig. 2 and Fig. 3, in example, the material selection aluminium alloy of Platelike heat pipe 20, substrate 23, can strengthen radiating effect on the one hand, can further alleviate on the other hand the weight of radiator.
By the description that the utility model frequency converter and power electronic devices are undertaken by the course of work of radiator, further illustrate the technical solution of the utility model below.
The utility model frequency converter and power electronic devices are contacted to installation by the heat source-contacting surface of radiator with the radiating surface of the heat producing components on frequency converter, make can carry out effectively heat conduction between the two.When heat producing components heat production, heat is conducted to substrate, and then is transmitted to the evaporator section of Platelike heat pipe.In evaporator section, the liquid refrigerant in miniature independent heat pipe is subject to thermal evaporation, takes away heat.The working medium of evaporation enters into the condensation segment of Platelike heat pipe, and the temperature in the condensation segment external world is low, makes working medium condensation return to liquid state.So far heat is exported Platelike heat pipe.Condensed liquid refrigerant flow back into evaporator section, continues evaporator strip and walks heat, forms circulation.When condensation segment is on gravity direction above evaporator section time, liquid refrigerant flow back into the speed of evaporator section can be faster, is more conducive to improve the radiating efficiency of radiator.
Radiator of the present utility model can also be applied to the heat radiation of other power electronic devices, can reach raising radiating efficiency, reduces the effect that volume takies.
It should be noted that; the foregoing is only preferred embodiment of the present utility model; not thereby limit scope of patent protection of the present utility model, the utility model can also carry out to the structure of above-mentioned various parts the improvement of material and structure, or adopts technical equivalents thing to replace.Therefore the equivalent structure that all utilizations description of the present utility model and diagramatic content are done changes, or directly or indirectly apply to other correlative technology fields and be all in like manner all contained in the scope that the utility model contains.
Claims (10)
1. new radiator, comprises that combination is arranged on many Platelike heat pipes on heater heating face, and described Platelike heat pipe is multiple miniature independent heat pipe structure body that be set up in parallel along plate face in heat sink, the interconnection of pipe sidewall; Described Platelike heat pipe is divided into evaporator section and condensation segment along the axis direction of described miniature independent heat pipe, all or part of and described heater heating face laminating of described evaporator section, and described condensation segment is the free plate face contacting with air.
2. new radiator according to claim 1, is characterized in that on the condensation segment of described Platelike heat pipe and part that evaporator section is not combined with heating face is provided with radiating fin.
3. new radiator according to claim 1 and 2, the thickness that it is characterized in that described Platelike heat pipe is between 0.5mm to 10mm, and the equivalent diameter of described miniature independent heat pipe is between 0.1mm to 8mm time, and the length ratio of the length of described evaporator section and described Platelike heat pipe axis direction is 1:5 to 1:100000.
4. new radiator according to claim 3, the thickness that it is characterized in that described Platelike heat pipe is between 1.0mm to 4mm, and the equivalent diameter of described miniature independent heat pipe is between 0.3mm to 3mm time, and the length ratio of the length of described evaporator section and described Platelike heat pipe axis direction is 1:10 to 1:200.
5. according to the new radiator described in claim 1 or 2 or 4, it is characterized in that described heater is the substrate contacting with thermal source, described substrate comprises heat source-contacting surface and heat pipe installed surface, on described heat pipe installed surface, be provided with and arrange sidewalls more the slot that is plane, mate with described evaporator section part, described Platelike heat pipe inserts slot by described evaporator section and is fixed on described substrate, and part or all of plate face and the socket sidewalls of described evaporator section fits tightly.
6. new radiator according to claim 5, the thickness that it is characterized in that described Platelike heat pipe is between 0.5mm to 10mm, and the equivalent diameter of described miniature independent heat pipe is between 0.1mm to 8mm time, and the length ratio of the height of described slot and described Platelike heat pipe axis direction is 1:5 to 1:100000.
7. new radiator according to claim 6, the thickness that it is characterized in that described Platelike heat pipe is between 1.0mm to 4mm, and the equivalent diameter of described miniature independent heat pipe is between 0.3mm to 3mm time, and the length ratio of the height of described slot and described Platelike heat pipe axis direction is 1:10 to 1:200.
8. new radiator according to claim 7, is characterized in that being set up in parallel multiple described Platelike heat pipes along flute length direction in a certain slot on described heat pipe installed surface.
9. new radiator according to claim 8, is characterized in that described new radiator is frequency converter radiator, when after described frequency converter radiator assembling, above the above condensation segment of gravity direction is positioned at described evaporator section; Described heat source-contacting surface is parallel with heat pipe installed surface, and described Platelike heat pipe favours the setting of described heat pipe installed surface.
10. new radiator according to claim 5, the material that it is characterized in that described substrate and described Platelike heat pipe is aluminum or aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320689748.8U CN203687710U (en) | 2013-11-04 | 2013-11-04 | Novel heat radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320689748.8U CN203687710U (en) | 2013-11-04 | 2013-11-04 | Novel heat radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203687710U true CN203687710U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320689748.8U Expired - Lifetime CN203687710U (en) | 2013-11-04 | 2013-11-04 | Novel heat radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203687710U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615921A (en) * | 2013-11-04 | 2014-03-05 | 赵耀华 | Novel radiator |
| CN104482788A (en) * | 2014-10-29 | 2015-04-01 | 北京德能恒信科技有限公司 | Micro heat pipe |
-
2013
- 2013-11-04 CN CN201320689748.8U patent/CN203687710U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615921A (en) * | 2013-11-04 | 2014-03-05 | 赵耀华 | Novel radiator |
| CN104482788A (en) * | 2014-10-29 | 2015-04-01 | 北京德能恒信科技有限公司 | Micro heat pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |