CN202068706U - Constant-temperature thermal-cavity heat radiator - Google Patents
Constant-temperature thermal-cavity heat radiator Download PDFInfo
- Publication number
- CN202068706U CN202068706U CN 201120091008 CN201120091008U CN202068706U CN 202068706 U CN202068706 U CN 202068706U CN 201120091008 CN201120091008 CN 201120091008 CN 201120091008 U CN201120091008 U CN 201120091008U CN 202068706 U CN202068706 U CN 202068706U
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- Prior art keywords
- capillary structure
- heat
- radiator
- central
- absorber
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- Expired - Fee Related
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
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Abstract
The utility model discloses a constant-temperature thermal-cavity heat radiator, which comprises a heat absorbing body, a central heat conductor fixedly connected with the heat absorbing body, and heat radiation fins arranged at the outer wall of the central heat conductor, wherein through holes are arranged in the central heat conductor, the lower end of the central heat conductor is fixedly connected with the heat absorbing body, the upper opening of the central heat conductor is provided with a seal cover so as to form a vertical-type cavity being capable of vacuum pumping and filling working liquid and being provided with an unobstructed space, the inner wall of the central heat conductor is provided with a capillary structure layer matched with materials, the heat absorbing body is provided with a groove, and a capillary structure layer with a high adsorption rate is embedded in the groove. Heat can be diffused out rapidly, effectively and in time via the phase transition of the working liquid, thus the constant-temperature thermal-cavity heat radiator has the advantages of high heat radiation speed and high heat radiation efficiency.
Description
Technical field
The utility model relates to a kind of radiator, more particularly, relates on a kind of heater that places electronic product, to absorb, to conduct and to wave the hot cavate radiator of constant temperature of its heat energy that looses.
Background technology
Electronic component tends to produce a large amount of heats in running, these caloric requirements are in time dispelled the heat away, and need install radiator on this electronic component usually is its heat radiation, normally moves to guarantee electronic component.Traditional radiator comprises an absorber and is arranged on radiating fin on this absorber, absorber is to be made by heat conductivity good metal materials such as copper, aluminium altogether, but the heat conductivity of metal material is subjected to its material restriction itself, electronic component for golf calorific value, can produce tangible thermal resistance and can't reach better heat radiating effect, thereby influence the stability of electronic component operation.
In order to promote the efficient of radiator, industry also adopts the method for heating tube on absorber plate.Enclose working fluids such as water, ethanol in the heat pipe, utilize the phase change of working fluid to improve heat transfer rate.During work, working fluid arrives the heat release zone of absorber plate at the heat absorption district of absorber plate endothermic gasification, then cools off, liquefies, and is back to the heat absorption district of absorber plate sooner for making workflow physical efficiency after the liquefaction.Heat pipe cavity periphery is provided with a kind of capillary structure, and capillary structure generally is divided into three kinds of powder sintered capillary structures, netting twine capillary structure, groove capillary structure.Working fluid after the liquefaction is back to the hot zone and participates in the phase change circulation in capillary structure.Yet, 1, the work back-flow velocity of hot body and the influence that backflow is subjected to factors such as capillary structure permeability, resistance, its in absorber plate phase change circulation and have some setbacks, the radiating effect of radiator fails to produce a desired effect.2, the radiator volume that heat pipe combines with radiator on the structure is bigger.3, heat pipe is the copper metal, complicated technology in addition, and material and manufacturing cost are very high.
Application number is that 200710125258.4 Chinese invention patent application discloses a kind of heat spreader structures in addition, it is to be provided with first capillary structure on absorber, on the seal cover of cavity, be provided with second capillary structure, first capillary structure, second capillary structure all are arranged in the absorber, adopt flat cavity, it is narrow and small to cause being opened in the interior cavity space of absorber, hydraulic fluid can not effectively carry out the conversion between liquid phase and the gas phase, thereby can not bring into play the radiating efficiency of hydraulic fluid to greatest extent.Simultaneously, make complexity, the manufacturing cost height.
The utility model content
The purpose of this utility model is to overcome above-mentioned defective in the prior art: provide a kind of can be rapidly in time, spread out effectively with heat, radiating rate is fast, radiating efficiency is high, the hot cavate radiator of the constant temperature that cost is low, cost performance is high.
For achieving the above object, the technical scheme that the utility model provides is as follows: provide a kind of constant temperature hot cavate radiator, comprise absorber, also comprise the central heat carrier of fixedlying connected with absorber, central authorities' heat conduction bodily form is according to the heat conduction requirement, the processing difficulty or ease, volume restrictions is taken all factors into consideration, in central authorities' heat carrier is the vertical cavity of hollow, cavity geometry has enough height, roughly with central heat carrier shape, be arranged on the radiating fin on the central heat carrier outer wall, integrated with central heat carrier, be generally Al squeezing material, described central heat carrier inside is provided with and vacuumizes through hole, central authorities fixedly connected with absorber the heat carrier lower end, are equiped with seal cover on its upper end open and form a vacuum-pumping, fill the vertical cavity of hydraulic fluid, be equiped with first kind of capillary structure layer on the inwall of central heat carrier, absorber is provided with a groove, is embedded with second kind of capillary structure layer in this groove.
The beneficial effect of the hot cavate radiator of constant temperature described in the utility model is: by constructing a central heat carrier, central authorities fixedly connected with absorber the heat carrier lower end, be equiped with seal cover on its upper end open and form a vacuum-pumping, fill the vertical cavity of hydraulic fluid, on the inwall of central heat carrier, be equiped with first kind of capillary structure layer, absorber is provided with second kind of capillary structure layer, the vertical cavity of central authorities' heat carrier provides enough spaces for the conversion that hydraulic fluid effectively carries out between liquid phase and the gas phase, the first kind capillary structure layer of condensed hydraulic fluid from the inwall of central heat carrier reflux and the absorber upper groove that flows to via second kind of capillary structure layer in, simultaneously second kind of capillary structure layer is arranged on to make in the absorber upper groove in the groove and keeps constantly storing certain hydraulic fluid, strengthened the backflow of hydraulic fluid.Thereby the conversion of carrying out between liquid phase and the gas phase circulates in cavity again and again, rapidly in time, effectively the heat diffusion on the absorber is gone out, has the advantage that radiating rate is fast, radiating efficiency is high.In addition, the integrated vertical cavity liquid vapour phase of the aluminium extruded of radiator becomes design, has realized the practicability design concept that volume is little, cost is low, cost performance is high.
Below in conjunction with drawings and Examples the hot cavate radiator of constant temperature described in the utility model is described further:
Description of drawings
Fig. 1 is the three-dimensional structure diagram of the hot cavate radiator of constant temperature described in the utility model;
Fig. 2 is the vertical section cutaway view of the hot cavate radiator of constant temperature described in the utility model.
Embodiment
Below the embodiment of the hot cavate radiator of constant temperature described in the utility model, therefore do not limit protection range of the present utility model.
With reference to Fig. 1, Fig. 2, provide a kind of constant temperature hot cavate radiator, comprise absorber 1, also comprise the central heat carrier 2 of fixedlying connected with absorber, be arranged on the radiating fin 3 on central heat carrier 2 outer walls, described central heat carrier 2 inside are provided with through hole, central authorities fixedly connected with absorber 1 heat carrier 2 lower ends, be equiped with seal cover 5 on its upper end open and form a vacuum-pumping, fill the vertical cavity 6 of hydraulic fluid, be equiped with first kind of capillary structure layer 7 on the inwall of central authorities' heat carrier 2, absorber 1 is provided with a groove, is embedded with the second capillary structure layer kind 8 in this groove.
In the present embodiment, described central heat carrier 2, radiating fin 3 rounded distributions, described central heat carrier can be designed to different shapes according to actual needs with radiating fin 3.
Described absorber 1 and central heat carrier 2 are one-body molded, the bottom of absorber 1 contacts with heater, the hydraulic fluid that the heat that heater is produced passes in the cavity fast absorbs, the vertical cavity of central authorities' heat carrier 2 provides enough spaces for the conversion that hydraulic fluid effectively carries out between liquid phase and the gas phase, hydraulic fluid gasification back is in central heat carrier cold junction and seal cover 5 inner surface condensations, the first kind capillary structure layer 7 of condensed hydraulic fluid from the inwall of central heat carrier 2 reflux and the absorber upper groove that flows to via second kind of capillary structure layer 8 in, thereby the conversion of carrying out between liquid phase and the gas phase circulates in cavity again and again, rapidly in time, effectively the heat diffusion on the absorber is gone out.
Described central heat carrier 2 is the vertical column of hollow, but central heat carrier 2 shapes can require according to heat conduction, process difficulty or ease, volume restrictions is taken all factors into consideration, in central authorities' heat carrier is the vertical cavity of hollow, and cavity geometry has enough height, roughly with central heat conductor shape.
Described hydraulic fluid is liquid such as water, ethanol.
Described first kind of capillary structure layer 7 is connected with second kind of capillary structure layer 8, is convenient to hydraulic fluid and is back in the groove on the absorber 1.
Described central heat carrier 2 is equiped with the vacuum-pumping tube 9 that is connected with cavity 6, inject hydraulic fluid by this vacuum-pumping tube 9, and after injecting hydraulic fluid, carry out freezing, make to inject and vacuumize by vacuum-pumping tube 9 after hydraulic fluid solidifies, thereby make and form vacuum state in the cavity, to reduce the boiling point of hydraulic fluid, improve heat transfer efficiency.
Described first kind of capillary structure layer 7, second kind of capillary structure layer 8 are powder sintered capillary structure, netting twine capillary structure or groove capillary structure.
Described seal cover 5 satisfies the needs that vacuumize behind sealing process.
Also can on the hot cavate radiator of constant temperature described in the utility model, install fan to disperse the heat that is diffused out from central heat carrier 2, radiating fin 3.
The foregoing description is the utility model preferred implementation; but execution mode of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection range of the present utility model.
Claims (6)
1. hot cavate radiator of constant temperature, comprise absorber (1), it is characterized in that, also comprise the central heat carrier (2) of fixedlying connected with absorber, be arranged on the radiating fin (3) on central heat carrier (2) outer wall, described central heat carrier (2) inside is provided with and vacuumizes through hole, central authorities fixedly connected with absorber (1) heat carrier (2) lower end, be equiped with seal cover (5) on its upper end open and form a vacuum-pumping, fill the vertical cavity (6) of hydraulic fluid, be equiped with first kind of capillary structure layer (7) on the inwall of central authorities' heat carriers (2), absorber (1) is provided with a groove, is embedded with second kind of capillary structure layer (8) in this groove.
2. the hot cavate radiator of constant temperature according to claim 1 is characterized in that, described absorber (1) is one-body molded with central heat carrier (2).
3. the hot cavate radiator of constant temperature according to claim 1 is characterized in that, described first kind of capillary structure layer (7) is connected with second kind of capillary structure layer (8).
4. according to the hot cavate radiator of each described constant temperature of claim 1 to 3, it is characterized in that described central heat carrier (2) is equiped with the vacuum-pumping tube (9) that is connected with cavity (6).
5. the hot cavate radiator of constant temperature according to claim 1 is characterized in that, described first kind of capillary structure layer (7), second kind of capillary structure layer (8) are powder sintered capillary structure or netting twine capillary structure or groove capillary structure.
6. the hot cavate radiator of constant temperature according to claim 5 is characterized in that, a seal cover (5) is arranged, and can satisfy the requirement that vacuumizes after the sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120091008 CN202068706U (en) | 2011-03-31 | 2011-03-31 | Constant-temperature thermal-cavity heat radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120091008 CN202068706U (en) | 2011-03-31 | 2011-03-31 | Constant-temperature thermal-cavity heat radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202068706U true CN202068706U (en) | 2011-12-07 |
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ID=45062550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120091008 Expired - Fee Related CN202068706U (en) | 2011-03-31 | 2011-03-31 | Constant-temperature thermal-cavity heat radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202068706U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104053337A (en) * | 2013-03-15 | 2014-09-17 | 君瞻科技股份有限公司 | Electronic device with heat radiating function and radiating module thereof |
-
2011
- 2011-03-31 CN CN 201120091008 patent/CN202068706U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104053337A (en) * | 2013-03-15 | 2014-09-17 | 君瞻科技股份有限公司 | Electronic device with heat radiating function and radiating module thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20140331 |