CN200950602Y - Mobile terminal casing - Google Patents
Mobile terminal casing Download PDFInfo
- Publication number
- CN200950602Y CN200950602Y CN 200620017045 CN200620017045U CN200950602Y CN 200950602 Y CN200950602 Y CN 200950602Y CN 200620017045 CN200620017045 CN 200620017045 CN 200620017045 U CN200620017045 U CN 200620017045U CN 200950602 Y CN200950602 Y CN 200950602Y
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- mobile phone
- portable terminal
- overcoat
- utility
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Abstract
The utility model provides a movable terminal casing, which is provided with at least one sealed space. The sealed space is filled with phase-change heat storing materials. The phase-change heat storing materials are solid-solid and solid-liquid phase-change materials with the melting point of 30-45oC. The utility model not only has the protective function of normal movable terminal casings of falling impact resistance, but also obviously reduces temperature rising speed of the movable terminal, keep the comfort feeling, and prevents and reduces claims of users for overheating.
Description
Technical field
The utility model relates to a kind of portable terminal overcoat, relates in particular to a kind of mobile phone overcoat that can effectively reduce mobile phone surface temperature rise speed.
Background technology
Along with the development of radio communication and chip encapsulation technology, increasing function can, also be integrated in the mobile phone.Correspondingly, the obviously trend of increase also appears in the power consumption of mobile phone, and the third generation (3G) mobile phone of visual telephone function especially is provided.The 3G mobile hear rate increases more than 50% than the second generation (2G) mobile phone in that signal is very weak when maximum power transmission occurring.Its main cause is to adopt power amplifier (PA) the chip efficient of CDMA2000 or WCDMA technology far below the 2G mobile phone power amplifier chip that adopts the GSM technology.Yet it is extra small ultra-thin that customer demand and pressure of competition force mobile phone to be pursued again, and this is the very big challenge in the mobile phone thermal design.
By the first law of thermodynamics, law of conservation of energy has following formula:
Q=hA Δ T (formula 1)
Q is cell-phone heating amount (W) in the formula; H is surperficial equivalent heat transfer coefficient, comprises Natural Heat Convection and radiation heat transfer, and it is worth usually at 10W/m
2About-K; A is mobile phone equivalence area of dissipation (m
2); Δ T is a mobile phone surface average temperature rising.Tmax＝ ΔT+3~5°C。Clearly, the mobile phone surface temperature rise depends primarily on Δ T.This is the critical bottleneck of present mobile phone thermal design.Because the restriction of natural heat dissipation, h adjustment surplus is very little, and power consumption restricts again in the hardware advances level, and small size mobile phone and low mobile phone surface temperature rise are fundamental contradictions.After the mobile phone surface temperature exceeds standard, be limited by the space of compactness and the significantly lifting and the prolongation of construction cycle of the cost that the accurate grinding tool of modification can cause, be that cost is not done any change often at last, especially in the market that does not have the access requirement to sacrifice user satisfaction.
Reducing the cell-phone heating amount is to reduce the effective way of mobile phone surface temperature rise, depends primarily on the radio frequency matching circuit design, software control etc.There is following defective in this method:
1. core technology is grasped in chip for cell phone supplier, is a flight data recorder to the mobile phone developer;
2. chip periphery circuit design and software optimization are long term experience cumulative process, and it is big to implement difficulty, the risk height;
3. some reduces the way of power consumption, as reducing maximum transmission power, influences radio-frequency (RF) index.The mobile phone radio-frequency (RF) index meets the demands under the delivery in order to guarantee to produce in enormous quantities, must leave and take suitable surplus.
The method that also has another one to reduce the mobile phone temperature rise is: reduce mobile phone surface temperature unevenness, as in veneer PCB design, large tracts of land shop copper is laid hot via hole, hot buried via hole, and hot blind hole is the common way of industry, does not also have technical difficulty.Because the metal heat-conducting coefficient, so just can play the effect of the indivedual overheated chips of equal gentle control far above plastics.But also there is following defective in this way:
1, structure implementation cost height obviously increases mobile phone weight;
2, to improving indivedual overheated devices obvious effect is arranged, but limited to improving mobile phone surface temperature rise effect;
In addition, the mobile phone overcoat on the existing market generally has only the function of decoration or anti-drop impact.Still find no any mobile phone overcoat that can effectively reduce the mobile phone surface temperature rise.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of portable terminal overcoat that can effectively reduce the mobile phone surface temperature rise, and remedies after can pinpointing the problems in the design later stage.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopted is:
A kind of portable terminal overcoat is provided, and this portable terminal is arranged with at least one seal cavity outward, fills phase-change heat-storage material in the described seal cavity.
Preferably, described seal cavity is arranged at the bottom surface of portable terminal, perhaps is arranged between the button and button of portable terminal keyboard.Perhaps described seal cavity is arranged between the button and button of the bottom surface of portable terminal and portable terminal keyboard simultaneously.
Portable terminal overcoat of the present utility model also can significantly lower the temperature rise speed of portable terminal except the defencive function of anti-drop impact with common mobile terminal overcoat, the protection comfort is avoided and reduced user's complaint of generating heat.
Description of drawings
Fig. 1 is the user mode schematic diagram of a specific embodiment of portable terminal overcoat of the present utility model.
Fig. 2 is the user mode schematic diagram of second specific embodiment of portable terminal overcoat of the present utility model.
Fig. 3 is the user mode schematic diagram of the 3rd specific embodiment of portable terminal overcoat of the present utility model.
Fig. 4 is the user mode schematic diagram of the 4th specific embodiment of portable terminal overcoat of the present utility model.
Fig. 5 is the user mode schematic diagram of the 5th specific embodiment of portable terminal overcoat of the present utility model.
Fig. 6 is the equivalent specific heat coefficient comparison diagram of five kinds of materials in using always in the prior art.
Embodiment
In order to understand the utility model better, below and be structure and the operation principle that example describes portable terminal overcoat of the present utility model in detail with the mobile phone overcoat in conjunction with the accompanying drawings.
Shown in Fig. 1-5, mobile phone overcoat 2 of the present utility model is arranged at the outer surface of mobile phone 1, described mobile phone overcoat 2 is provided with seal cavity 3, fill phase-change heat-storage material in the described seal cavity 3, the sealing space can be more than one, the sealing space is arranged at the position of pressing close to human body when mobile phone uses, be mainly used in the control mobile phone and press close to the temperature rise speed of human body, such as: described seal cavity can be located at the bottom surface (user's hand-holding part) of mobile phone, perhaps (press close to the position of face during use) between the button and button of cell phone keyboard 4, perhaps described seal cavity is arranged between the button of the bottom surface of mobile phone and cell phone keyboard and the button etc. simultaneously.Described mobile phone overcoat 2 is the bigger elastomeric materials of elasticity, and phase-change heat-storage material is filled in 80 ± 10% spaces of described seal cavity.But leaving certain cavity phase-change heat-storage material when undergoing phase transition can free volume expand in the mobile phone overcoat.Phase-change heat-storage material pours into annular seal space during for liquid, and overcoat can make arbitrary shape according to mobile phone external form and needs attractive in appearance.Such as, overcoat can be located on mobile phone outer surface and the cell phone keyboard, and it is first-class perhaps to be located at cell phone keyboard separately.
Phase-change heat-storage material (PCM) characteristic is as shown in Figure 6: when the operating handset heating temp is elevated to before human body has the heating sensation, phase-change heat-storage material can absorb heat by solid-state liquefy.Same 1 degree that raises, it is plastics that phase-change heat-storage material absorbs heat, the 10-15 of metal etc. doubly, thereby, significantly lower the mobile phone temperature rise speed, keep comfort, avoid and reduce user's complaint of generating heat.After the cell phone standby heating reduced the temperature reduction, phase-change heat-storage material can become solid-state again from liquid state, emits heat.
Gu phase-change heat-storage material is solid-and the solid-liquid phase change material (this material be prior art) of fusing point between 30-450 ℃, as KF2H
2O,
Obviously the utility model is not limited to the mobile phone overcoat described in the above-mentioned specific embodiment, the portable terminal that can generate heat when the utility model can be applicable to all working.The utility model also is not limited to several concrete structures of describing in the above-mentioned specific embodiment, and the conspicuous malformation that all those skilled in the art made all will drop in the protection range of the present utility model.
Claims (5)
1, a kind of portable terminal overcoat is characterized in that, this portable terminal is arranged with at least one seal cavity (3) outward, fills phase-change heat-storage material in the described seal cavity (3).
2, portable terminal overcoat according to claim 1 is characterized in that, described seal cavity is arranged at the bottom surface of portable terminal.
3, portable terminal overcoat according to claim 1 is characterized in that, described seal cavity is arranged between the button and button of portable terminal keyboard.
4, portable terminal overcoat according to claim 1 is characterized in that, described seal cavity is arranged between the button and button of the bottom surface of portable terminal and portable terminal keyboard simultaneously.
5, portable terminal overcoat according to claim 1 is characterized in that, fills phase-change heat-storage material in 80 ± 10% spaces of described seal cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620017045 CN200950602Y (en) | 2006-07-18 | 2006-07-18 | Mobile terminal casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620017045 CN200950602Y (en) | 2006-07-18 | 2006-07-18 | Mobile terminal casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200950602Y true CN200950602Y (en) | 2007-09-19 |
Family
ID=38893145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620017045 Expired - Lifetime CN200950602Y (en) | 2006-07-18 | 2006-07-18 | Mobile terminal casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200950602Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506686A (en) * | 2015-01-09 | 2015-04-08 | 李宁 | Efficiently cooling mobile phone shell |
| CN104811521A (en) * | 2015-05-06 | 2015-07-29 | 苏州云远网络技术有限公司 | Multi-protection safety mobile phone shell |
| CN114157741A (en) * | 2021-12-07 | 2022-03-08 | Oppo广东移动通信有限公司 | Shell, manufacturing method thereof and electronic equipment |
-
2006
- 2006-07-18 CN CN 200620017045 patent/CN200950602Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506686A (en) * | 2015-01-09 | 2015-04-08 | 李宁 | Efficiently cooling mobile phone shell |
| CN104811521A (en) * | 2015-05-06 | 2015-07-29 | 苏州云远网络技术有限公司 | Multi-protection safety mobile phone shell |
| CN104811521B (en) * | 2015-05-06 | 2017-12-08 | 江苏央科科技有限公司 | A kind of more protection safety mobile phone shells |
| CN114157741A (en) * | 2021-12-07 | 2022-03-08 | Oppo广东移动通信有限公司 | Shell, manufacturing method thereof and electronic equipment |
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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 |
Granted publication date: 20070919 |
|
| EXPY | Termination of patent right or utility model |