CN102829664B - Natural convection cooling structure and method thereof - Google Patents
Natural convection cooling structure and method thereof Download PDFInfo
- Publication number
- CN102829664B CN102829664B CN201210370007.3A CN201210370007A CN102829664B CN 102829664 B CN102829664 B CN 102829664B CN 201210370007 A CN201210370007 A CN 201210370007A CN 102829664 B CN102829664 B CN 102829664B
- Authority
- CN
- China
- Prior art keywords
- fin
- shell
- natural convection
- heat dissipation
- dissipation structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a natural convection cooling structure and a method thereof. The structure specifically comprises a shell and fins, wherein the shell comprises an inner wall and an outer wall; the shell is internally provided with more than two fins arranged a side by side manner, and each fin is of a gradually changing section structure; two ends of the shell are provided with openings, and a tubular air channel of a gradually changing section structure is formed among the fins; when a heat source contacts a partial region which is of a natural convection cooling structure, and the heat is conducted to the shell which is of a natural convection cooling structure; and the inner wall and the outer wall of the natural convection cooling structure exchange with the contacted air, the air in the tubular air channel among the fins are heated to rise, the cold air in the lower part of the tubular air channel comes in continuously so as to take heat away. The natural convection cooling structure and the method thereof provided by the invention can obviously improve the cooling ability of the natural convection radiator currently; under the condition of the same cooling ability, the natural convection cooling structure needs less materials, smaller in size and can keep lower cost and higher reliability.
Description
Technical field
The present invention relates to a kind of radiator structure and method thereof, especially relate to and a kind ofly adopt the radiator structure of free convection mode and its method of dispelling the heat.
Background technology
Natural Heat Convection refers under the effect that there is no external mechanical force, only depends on internal fluid temperature difference, thereby and make fluid flow produce phenomenon of Heat, be called as Natural Heat Convection.And dynamic pressure refers to that object is in the time doing relative fluid motion, on the direction surface of positive convection cell, fluid is obstructed completely, fluid velocity is zero herein, and its kinetic energy changes pressure energy into, and pressure increases, its pressure becomes the pressure that is entirely obstructed, and the pressure at it and undisturbed place poor is called dynamic pressure.
Natural Heat Convection mode is modal radiating mode, and its radiating principle is to utilize the heat that produces convective zone and walk thermal source when air is cold and hot to be changed.Natural Heat Convection mode is as the widely used radiating mode of one, has simple in structurely, and reliability is high, and cost is low, the lower feature of heat radiation density.
In the approximation technique scheme of prior art, there is the pressure differential of utilizing chimney structure to strengthen cold and hot air, strengthen convection current, improve the scheme of heat-sinking capability.But current Natural Heat Convection mode exists inefficient defect, and forced air cooling mode exists the technological deficiency that cost is higher, reliability is low., the in the situation that of identical heat-sinking capability, contrast, prior art often all needs more materials and larger volume meanwhile.
Summary of the invention
The object of this invention is to provide a kind of natural convection heat dissipation structure and method thereof, this structure and method thereof can obviously improve current natural convection radiator heat-sinking capability, and the in the situation that of identical heat-sinking capability, required material still less, volume is less, can keep lower cost and higher reliability.
In order to realize foregoing invention object, the present invention specifically provides a kind of technic relization scheme of natural convection heat dissipation structure, and a kind of natural convection heat dissipation structure, comprising: shell and fin, shell comprises inner and outer wall.Be arranged side by side more than two fins in the inside of shell, fin adopts the structure in gradual change cross section.The both ends open of shell, between fin, form the tubulose air duct of gradual change cross section structure, the regional area of thermal source contact nature convection heat dissipation structure, conduct heat to the shell of natural convection heat dissipation structure, inwall, the outer wall of natural convection heat dissipation structure and the air generation heat exchange touching, the rising of being heated of air between fin in tubulose air duct, the cold air of tubulose air duct bottom constantly supplements into takes away heat.
As the further improvement of a kind of natural convection heat dissipation structure technical scheme of the present invention, the sectional area at fin middle part is greater than the sectional area at two ends, and from one end of fin to middle part, it is large that the sectional area of fin becomes gradually, from the middle part of fin, again to the other end, the sectional area of fin diminishes gradually.Between fin, the air entering part of tubulose air duct increases effective inlet area, increases and flows into air capacity; Change the dynamic pressure of minimizing intake air by controlling the sectional area of tubulose air duct, thereby reduce entrance resistance.Between fin, the air outlet slit part of tubulose air duct increases effective discharge area, reduces outlet pressure loss, thereby reduces resistance to flow output, expands effective outlet, increases air actual flow output, and naturally converges with ambient atmosphere.
As the further improvement of a kind of natural convection heat dissipation structure technical scheme of the present invention, the inwall of the top board of shell adopts the structure in gradual change cross section, and the sectional area at top board middle part is greater than the sectional area at two ends.
As the further improvement of a kind of natural convection heat dissipation structure technical scheme of the present invention, the inwall of the base plate of shell adopts the structure in gradual change cross section, and the sectional area at base plate middle part is greater than the sectional area at two ends.
As the further improvement of a kind of natural convection heat dissipation structure technical scheme of the present invention, the inwall of the side plate of shell adopts the structure in gradual change cross section, and the sectional area at side plate middle part is greater than the sectional area at two ends.
As the further improvement of a kind of natural convection heat dissipation structure technical scheme of the present invention, it is ellipse or parabola or the oval curved-surface structure that adds rectangle that the fin of natural convection heat dissipation structure adopts gradual change cross section.
As the further improvement of a kind of natural convection heat dissipation structure technical scheme of the present invention, the shell of natural convection heat dissipation structure and fin adopt the aluminum alloy materials of high thermal conductivity coefficient to make.
The present invention also specifically provides a kind of technic relization scheme of Natural Heat Convection method in addition, a kind of Natural Heat Convection method, be arranged side by side more than two fins in the enclosure of natural convection heat dissipation structure, shell and fin all adopt high thermal conductivity coefficient material to make, and make to form between shell and fin tubulose air duct structure arranged side by side.Fin adopts the structure in gradual change cross section, and the sectional area at fin middle part is greater than the sectional area at two ends.In the time that thermal source touches the regional area of shell of natural convection heat dissipation structure, heat conducts to the shell of natural convection heat dissipation structure, the inner and outer wall of shell and the air generation heat exchange touching, the air rising of being heated in tubulose air duct, the cold air of tubulose air duct bottom constantly supplements into the tubulose air duct of natural convection heat dissipation structure and takes away heat, thereby realizes Natural Heat Convection.
As the further improvement of a kind of Natural Heat Convection method and technology of the present invention scheme, between fin, the air entering part of tubulose air duct increases effective inlet area, increases and flows into air capacity.Change the dynamic pressure of minimizing intake air by controlling the sectional area of tubulose air duct, thereby reduce entrance resistance.Between fin, the air outlet slit part of tubulose air duct increases effective discharge area, reduces outlet pressure loss, thereby reduces resistance to flow output, expands effective outlet, increases air actual flow output, and naturally converges with ambient atmosphere.
As the further improvement of a kind of Natural Heat Convection method and technology of the present invention scheme, Natural Heat Convection method also comprises that adopting gradual change cross section is the process that ellipse or parabola or the oval curved-surface structure that adds rectangle design the fin of natural convection heat dissipation structure.
By implementing the technical scheme of a kind of natural convection heat dissipation structure of the invention described above and method thereof, can reach following technique effect:
(1) the present invention adopts material less, thereby has cost advantage in the situation that amount is larger;
(2) small volume of the present invention, is applicable to using in the occasion to limited space system;
(3) weight of the present invention is lighter, is applicable on the lower weight vehicles of these pursuits such as locomotive;
(4) heat-sinking capability of the present invention is stronger, and reliability is higher, is applicable to being applied in caloric value larger, the occasion that reliability requirement is higher.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the air flow schematic diagram of a kind of specific embodiment of natural convection heat dissipation structure of the present invention;
Fig. 2 is the internal structure schematic diagram of a kind of specific embodiment of natural convection heat dissipation structure of the present invention;
Fig. 3 is that the heat of a kind of specific embodiment of natural convection heat dissipation structure of the present invention transmits schematic diagram;
Fig. 4 is structural representation Fig. 1 of single tubulose air duct in a kind of specific embodiment of natural convection heat dissipation structure of the present invention;
Fig. 5 is structural representation Fig. 2 of single tubulose air duct in a kind of specific embodiment of natural convection heat dissipation structure of the present invention;
Fig. 6 is the structural representation of tubulose air duct in a kind of specific embodiment of natural convection heat dissipation structure of the present invention;
Fig. 7 is the structural representation of a kind of specific embodiment fin of natural convection heat dissipation structure of the present invention;
In figure: 1-shell, 2-fin, 3-inwall, 4-outer wall, 5-air duct, 6-top board, 7-base plate, 8-side plate.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
If accompanying drawing 1 is to as shown in accompanying drawing 7, provide the specific embodiment of a kind of natural convection heat dissipation structure of the present invention and method thereof, below in conjunction with the drawings and specific embodiments, the invention will be further described.
The specific embodiment of a kind of natural convection heat dissipation structure as shown in Figures 1 and 2, comprising: shell 1 and fin 2, shell 1 comprises inwall 3 and outer wall 4, is arranged side by side more than two fins 2 in the inside of shell 1.Fin 2 adopts the structure in gradual change cross section.Wherein, the shell 1 of natural convection heat dissipation structure and fin 2 adopt the aluminum alloy materials of high thermal conductivity coefficient to make.The both ends open of shell 1, forms the tubulose air duct of gradual change cross section structure between fin 2, the regional area of thermal source contact nature convection heat dissipation structure conducts heat to the shell 1 of natural convection heat dissipation structure.Inwall 3, the outer wall 4 of natural convection heat dissipation structure and the air generation heat exchange touching, the rising of being heated of the air between fin 2 in tubulose air duct, the cold air of tubulose air duct bottom constantly supplements into takes away heat.
As shown in accompanying drawing 2 and accompanying drawing 4, fin 2 adopts the structure in gradual change cross section, and the sectional area at fin 2 middle parts is greater than the sectional area at two ends.From one end of fin 2 to middle part, the sectional area of fin 2 becomes greatly gradually, and from the middle part of fin 2, again to the other end, the sectional area of fin 2 diminishes gradually.Between fin 2, the air entering part of tubulose air duct increases effective inlet area, increases and flows into air capacity.Change the dynamic pressure of minimizing intake air by controlling the sectional area of tubulose air duct, thereby reduce entrance resistance.Between fin 2, the air outlet slit part of tubulose air duct increases effective discharge area, reduces outlet pressure loss, thereby reduces resistance to flow output, expands effective outlet, increases air actual flow output, and naturally converges with ambient atmosphere.
As a kind of embodiment being more preferably, as shown in Figure 5, the inwall of the top board 6 of shell 1 also further adopts the structure in gradual change cross section, and the sectional area at top board 6 middle parts is greater than the sectional area at two ends.The inwall of the base plate 7 of shell 1 also further adopts the structure in gradual change cross section, and the sectional area at base plate 7 middle parts is greater than the sectional area at two ends.As shown in Figure 6, the inwall of the side plate 8 of shell 1 also further adopts the structure in gradual change cross section, and the sectional area at side plate 8 middle parts is greater than the sectional area at two ends.
As a kind of embodiment being more preferably, it is ellipse or parabola or the oval curved-surface structure that adds rectangle that the fin 2 of natural convection heat dissipation structure further adopts gradual change cross section.As shown in Figure 7, the gradual change cross section that fin 2 adopts is the compound cross-section structure that the half elliptic structure of both sides B section adds the rectangular configuration of middle part A section.Such design is different from common finned radiator, can obtain the air duct of a low flow resistance, and in same volume situation, can obtain larger area of dissipation, and processing and making process is also very simple simultaneously.
The specific embodiment of a kind of Natural Heat Convection method as shown in Figure 3, is arranged side by side more than two fins 2 in shell 1 inside of natural convection heat dissipation structure.Wherein, shell 1 and fin 2 all adopt high thermal conductivity coefficient material to make, and make to form between shell 1 and fin 2 tubulose air duct structure arranged side by side.Fin 2 further adopts the structure in gradual change cross section, and the sectional area at fin 2 middle parts is greater than the sectional area at two ends.In the time that thermal source touches the regional area of shell 1 of natural convection heat dissipation structure, heat conducts to the shell 1 of natural convection heat dissipation structure.The inwall 3 of shell 1 and outer wall 4 and the air generation heat exchange touching, the air rising of being heated in tubulose air duct, the cold air of tubulose air duct bottom constantly supplements into the tubulose air duct of natural convection heat dissipation structure and takes away heat, thereby realizes Natural Heat Convection.
Between fin 2, the air entering part of tubulose air duct increases effective inlet area, can increase inflow air capacity.Change the dynamic pressure of minimizing intake air by controlling the sectional area of tubulose air duct, thereby reduce entrance resistance.Between fin 2, the air outlet slit part of tubulose air duct increases effective discharge area, reduces outlet pressure loss, thereby reduces resistance to flow output, expands effective outlet, increases air actual flow output, and naturally converges with ambient atmosphere.Natural Heat Convection method also further comprises that adopting gradual change cross section is the process that ellipse or parabola or the oval curved-surface structure that adds rectangle design the fin 2 of natural convection heat dissipation structure.
On the one hand, the present invention adopts high thermal conductivity coefficient material to make tubular conduit structure arranged side by side.When thermal source contacts the regional area of this structure, conduct heat to this structure, the finally inside and outside wall of this structure and the air generation heat exchange that touches, the air rising of being heated in passage, passage bottom cold air constantly supplements into takes away heat, thereby reaches the object of heat radiation.This is compared with conventional Section Bar Heat Sinks, and this structure has larger area of dissipation in the situation that of same volume, is more conducive to heat radiation.
On the other hand, the present invention adopts gradual change cross section tubular air duct, increases inflow air capacity thereby increase effective inlet area in air entering part.Reduce entrance resistance by controlling the dynamic pressure of changes of section minimizing intake air.Equally, also adopt similar measure minimizing outlet pressure at outlet section and lose to reduce resistance to flow output, expand effective outlet, increase air actual flow output, and naturally converge with ambient atmosphere.And tubulose air duct structure is beneficial to the desirable cold and hot concurrent condition of formation channel interior.The tubulose air duct that adopts cross section gradual change, effectively reduces air drag, has increased area of dissipation, has strengthened heat-sinking capability.
Meanwhile, the present invention adopts material less, thereby has cost advantage in the situation that amount is larger.Small volume, is applicable to using in the occasion to limited space system.Weight is lighter, is applicable on the lower weight vehicles of these pursuits such as locomotive.Heat-sinking capability is stronger, and reliability is higher, is suitable for use in caloric value larger, the occasion that reliability requirement is higher.Can obviously improve current natural convection radiator heat-sinking capability, and keep the reliability that lower cost is higher high.
The above, be only preferred embodiment of the present invention, not the present invention done to any pro forma restriction.Although the present invention discloses as above with preferred embodiment, but not in order to limit the present invention.Any those of ordinary skill in the art, do not departing from technical solution of the present invention scope situation, all can utilize method and the technology contents of above-mentioned announcement to make many possible variations and modification to technical solution of the present invention, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not depart from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, be equal to replacements, equivalence change and modify, all still belong to technical solution of the present invention protect scope in.
Claims (9)
1. a natural convection heat dissipation structure, it is characterized in that, comprise: shell (1) and fin (2), described shell (1) comprises inwall (3) and outer wall (4), be arranged side by side more than two fins (2) in the inside of described shell (1), described fin (2) adopts the structure in gradual change cross section; The both ends open of shell (1), between fin (2), form the tubulose air duct of gradual change cross section structure, the regional area of thermal source contact nature convection heat dissipation structure, conduct heat to the shell (1) of natural convection heat dissipation structure, inwall (3), the outer wall (4) of natural convection heat dissipation structure and the air generation heat exchange touching, the rising of being heated of air between fin (2) in tubulose air duct, the cold air of tubulose air duct bottom constantly supplements into takes away heat; The sectional area at described fin (2) middle part is greater than the sectional area at two ends, and from one end of fin (2) to middle part, the sectional area of fin (2) becomes greatly gradually, and from the middle part of fin (2), again to the other end, the sectional area of fin (2) diminishes gradually; Between described fin (2), the air entering part of tubulose air duct increases effective inlet area, increases and flows into air capacity; Change the dynamic pressure of minimizing intake air by controlling the sectional area of tubulose air duct, thereby reduce entrance resistance; Between described fin (2), the air outlet slit part of tubulose air duct increases effective discharge area, reduces outlet pressure loss, thereby reduces resistance to flow output, expands effective outlet, increases air actual flow output, and naturally converges with ambient atmosphere.
2. a kind of natural convection heat dissipation structure according to claim 1, is characterized in that: the inwall of the top board (6) of described shell (1) adopts the structure in gradual change cross section, and the sectional area at described top board (6) middle part is greater than the sectional area at two ends.
3. a kind of natural convection heat dissipation structure according to claim 1 and 2, is characterized in that: the inwall of the base plate (7) of described shell (1) adopts the structure in gradual change cross section, and the sectional area at described base plate (7) middle part is greater than the sectional area at two ends.
4. a kind of natural convection heat dissipation structure according to claim 3, is characterized in that: the inwall of the side plate (8) of described shell (1) adopts the structure in gradual change cross section, and the sectional area at described side plate (8) middle part is greater than the sectional area at two ends.
5. according to a kind of natural convection heat dissipation structure described in arbitrary claim in claim 1,2,4, it is characterized in that: it is ellipse or parabola or the oval curved-surface structure that adds rectangle that the fin (2) of described natural convection heat dissipation structure adopts gradual change cross section.
6. a kind of natural convection heat dissipation structure according to claim 5, is characterized in that: the shell (1) of described natural convection heat dissipation structure and fin (2) adopt the aluminum alloy materials of high thermal conductivity coefficient to make.
7. a Natural Heat Convection method, it is characterized in that: shell (1) inside at natural convection heat dissipation structure is arranged side by side more than two fins (2), shell (1) and fin (2) all adopt high thermal conductivity coefficient material to make, and make to form between shell (1) and fin (2) tubulose air duct structure arranged side by side; Fin (2) adopts the structure in gradual change cross section, and the sectional area at fin (2) middle part is greater than the sectional area at two ends; In the time that thermal source touches the regional area of shell (1) of natural convection heat dissipation structure, heat conducts to the shell (1) of natural convection heat dissipation structure, the inwall (3) of shell (1) and outer wall (4) and the air generation heat exchange touching, the air rising of being heated in tubulose air duct, the cold air of tubulose air duct bottom constantly supplements into the tubulose air duct of natural convection heat dissipation structure and takes away heat, thereby realizes Natural Heat Convection.
8. a kind of Natural Heat Convection method according to claim 7, is characterized in that: between described fin (2), the air entering part of tubulose air duct increases effective inlet area, increases and flows into air capacity; Change the dynamic pressure of minimizing intake air by controlling the sectional area of tubulose air duct, thereby reduce entrance resistance; Between described fin (2), the air outlet slit part of tubulose air duct increases effective discharge area, reduces outlet pressure loss, thereby reduces resistance to flow output, expands effective outlet, increases air actual flow output, and naturally converges with ambient atmosphere.
9. a kind of Natural Heat Convection method according to claim 8, is characterized in that: described Natural Heat Convection method also comprises that to adopt gradual change cross section be ellipse or parabola or ovally adds the process that the curved-surface structure of rectangle designs the fin of natural convection heat dissipation structure (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210370007.3A CN102829664B (en) | 2012-09-29 | 2012-09-29 | Natural convection cooling structure and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210370007.3A CN102829664B (en) | 2012-09-29 | 2012-09-29 | Natural convection cooling structure and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102829664A CN102829664A (en) | 2012-12-19 |
| CN102829664B true CN102829664B (en) | 2014-06-18 |
Family
ID=47332886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210370007.3A Active CN102829664B (en) | 2012-09-29 | 2012-09-29 | Natural convection cooling structure and method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102829664B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887132A (en) * | 2017-12-18 | 2018-04-06 | 四川电力设计咨询有限责任公司 | A kind of hyperbolic-type oil-filled transformer fin |
| CN108131222A (en) * | 2018-01-25 | 2018-06-08 | 凯龙高科技股份有限公司 | A kind of heat exchanger structure of vehicle fuel heater |
| CN108934152B (en) * | 2018-07-28 | 2020-04-28 | 西安交通大学 | Heat exchange enhancement device for natural convection heat dissipation and design method thereof |
| TWI751759B (en) | 2020-10-28 | 2022-01-01 | 國立清華大學 | Heat dissipation device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2073104U (en) * | 1990-06-07 | 1991-03-13 | 宜兴市钮家耐火电瓷厂 | Heat exchanger |
| CN201828177U (en) * | 2010-09-29 | 2011-05-11 | 浙江金宸三普换热器有限公司 | Flat pipe and fin structure of parallel flow heat exchanger |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08139480A (en) * | 1994-11-08 | 1996-05-31 | Mitsubishi Materials Corp | Heat-dissipative ceramic board having heat pipe structure |
-
2012
- 2012-09-29 CN CN201210370007.3A patent/CN102829664B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2073104U (en) * | 1990-06-07 | 1991-03-13 | 宜兴市钮家耐火电瓷厂 | Heat exchanger |
| CN201828177U (en) * | 2010-09-29 | 2011-05-11 | 浙江金宸三普换热器有限公司 | Flat pipe and fin structure of parallel flow heat exchanger |
Non-Patent Citations (1)
| Title |
|---|
| JP特開平8-139480A 1996.05.31 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102829664A (en) | 2012-12-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205619813U (en) | Novel radiator flexible fin vortex device | |
| CN102829664B (en) | Natural convection cooling structure and method thereof | |
| CN102980429A (en) | Loop thermosyphon heat dissipation device | |
| CN103874395A (en) | Radiator and frequency converter employing same | |
| WO2016123996A1 (en) | Sintered heat pipe and semiconductor cooling refrigerator having same | |
| CN103453791A (en) | Gravity assisted heat pipe enhanced heat transfer structure | |
| CN106052458A (en) | Heat exchange pipe, heat exchanger and air conditioning unit | |
| WO2017038380A1 (en) | Heat exchanger | |
| CN206389667U (en) | A kind of automobile specified radiator | |
| CN206459534U (en) | A kind of peanut tubular type automobile radiators | |
| CN211177506U (en) | Wind deflector adopting Peltier effect | |
| CN106816275A (en) | Gilled radiator with spiral band | |
| CN208704019U (en) | A kind of heat dissipation spit of fland body and the oil heater with it | |
| CN208271690U (en) | The double vertical air plenums of transformer are from cooler | |
| CN206541708U (en) | Gilled radiator with spiral band | |
| CN206541703U (en) | Honeycombed oil duct gilled radiator | |
| CN206321112U (en) | Heat exchanger tube, heat exchanger and air-conditioner set | |
| JP2016042552A (en) | heat sink | |
| JP6890914B2 (en) | Cooling system | |
| CN203586602U (en) | Multipurpose personalized nearby temperature-regulating system | |
| CN106705733A (en) | Improved finned heat exchange pipe | |
| CN204630449U (en) | The heat exchanger tube that a kind of finned tube and varying cross-section duct combine | |
| CN203840680U (en) | Radiator wind scooper device with function of drainage wind concentration | |
| CN206247922U (en) | A kind of exchange fin structure and the heat exchanger with it | |
| RU2509970C1 (en) | Radiator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20121219 Assignee: Hunan CSR special electric equipment Co., Ltd. Assignor: CSR Zhuzou Electric Locomotive Research Institute Co., Ltd. Contract record no.: 2015430000134 Denomination of invention: Natural convection cooling structure and method thereof Granted publication date: 20140618 License type: Exclusive License Record date: 20150831 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model |