CN201946506U - Over-heat protection structure of portable terminal - Google Patents
Over-heat protection structure of portable terminal Download PDFInfo
- Publication number
- CN201946506U CN201946506U CN2010206905527U CN201020690552U CN201946506U CN 201946506 U CN201946506 U CN 201946506U CN 2010206905527 U CN2010206905527 U CN 2010206905527U CN 201020690552 U CN201020690552 U CN 201020690552U CN 201946506 U CN201946506 U CN 201946506U
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- portable terminal
- contact
- protection structure
- temperature
- working temperature
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Abstract
The utility model discloses an over-heat protection structure of a portable terminal, which comprises a protrusion made from shape memory alloys and arranged at the inner side of a rear shell of the portable terminal and an alarm contact arranged on a printed circuit board and facing to the protrusion. When the temperature of the protrusion is lower than a first working temperature, the protrusion keeps a preset distance with the alarm contact. When the temperature of the protrusion reaches the first working temperature, the protrusion extends to contact with the alarm contact. The over-heat protection structure of the portable terminal prevents the portable terminal from producing over-heat phenomenon, thereby improving the reliability of each element of the portable terminal. Furthermore, exploded accidents caused by the high temperature can be avoided, thereby improving using safety of the portable terminal.
Description
Technical field
The utility model relates to portable terminal, relates in particular to the overtemperature protection structure of the portable terminal that utilizes marmem.
Background technology
Usually, portable terminal is meant that the user carries out the electronic installation of radio communication with the other side under the situation of carrying.Example as radio communication has voice call, transmits note, transmits file, video calling, camera function etc.And portable terminal also can play individual secretaries' such as telephone number management, individual schedule management effect.
Recently, portable terminal is tending towards developing to the multimedization direction that various service functions can be provided, and for example, is tending towards comprising that to attention the direction of the leisure content of recreation or amusement etc. develops.In future, portable terminal does not only carry out voice call, also can be tending towards to comprising multi-functional complicated development such as video calling, recreation, the Internet, photograph.
But, when portable terminal is used to carry out the application program of above-mentioned functions in operation,, thereby can produce heat owing to each element is driven.If portable terminal moves described application program and reaches more than the predetermined temperature, then can influence the life-span of each element of portable terminal, even might be, thereby cause the generation of contingency owing to too high the blasting of temperature of the battery of portable terminal.
Existing portable terminal to the measure of overtemperature protection is; utilize thermistor to measure temperature; and its result informed the user by display frame; the user reduces temperature by the higher application program of manual-lock heat generation thus; perhaps portable terminal is carried out forced shutdown and handle, prevent to damage each parts of portable terminal thus owing to high temperature.
But, if ignoring this superheating phenomenon, the user continues or when executing the correlation function of portable terminal, each element of portable terminal is because temperature continues rising or continuous service under the condition of high temperature, thereby can damage each element, especially, when battery temperature is too high, can blast, cause contingency.Therefore, this portable terminal does not still fundamentally solve the above-mentioned variety of issue that causes because of portable terminal is overheated, even also has potential safety hazard.
The utility model content
The utility model proposes in order to address the above problem, and its purpose is to provide that a kind of to prevent that portable terminal from taking place overheated, and then prevents that portable terminal from blasting, and improves the overtemperature protection structure of the portable terminal of safety in utilization.
To achieve these goals, the overtemperature protection structure according to portable terminal of the present utility model comprises: the projection made from marmem of inboard that is arranged at the back cover of described portable terminal; Be arranged at alarm contact on the printed circuit board (PCB) in the face of described projection.Wherein, when the temperature of described projection during less than first working temperature, described projection and described alarm contact are spaced a predetermined distance from, and when reaching described first working temperature, described projection touches described alarm contact through extension.
And; overtemperature protection structure according to portable terminal of the present utility model also comprises the battery osculating element that the contact terminal of adjacent cells is provided with; described battery osculating element comprises the contact chip made from marmem, and an end of described contact chip contacts with the power supply terminal of described printed circuit board (PCB).And when the temperature of described contact chip during less than second working temperature, the other end of described contact chip contacts with described contact terminal, and the other end of described contact chip separates with described contact terminal when reaching second working temperature.
And described second working temperature is greater than described first working temperature.
And the described projection made from marmem is arranged at the inboard of described back cover by welding.
As mentioned above; overtemperature protection structure according to portable terminal of the present utility model; can prevent portable terminal generation superheating phenomenon; thereby can improve the reliability of each element of portable terminal; but also Yin Gaowen can be prevented and the accident that sets off an explosion, thereby improved the safety in utilization of portable terminal.
Description of drawings
Fig. 1 is the inboard schematic diagram according to back cover in the overtemperature protection structure of the portable terminal of the utility model embodiment;
Fig. 2 illustrates the cutaway view that is arranged under the normal condition according to the projection made from marmem in the overtemperature protection structure of the portable terminal of the utility model embodiment;
Fig. 3 illustrates to be arranged at the cutaway view that is in extension state according to the projection made from marmem in the overtemperature protection structure of the portable terminal of the utility model embodiment;
Fig. 4 is for being illustrated in less than under second working temperature, according to the schematic diagram of the connection status of the battery of the portable terminal of the utility model embodiment and contact chip;
When Fig. 5 reaches second working temperature for illustrating, the schematic diagram of the state that separates according to the battery and the contact chip of the portable terminal of the utility model embodiment.
The main symbol description of accompanying drawing: 10 is back cover, and 20 is the projection made from marmem, and 30 is printed circuit board (PCB), and 31 are the alarm contact, and 32 is power supply terminal, and 40 is battery, and 50 is the battery osculating element, and 51 is the contact chip made from marmem.
Embodiment
Below, describe preferred embodiment of the present utility model in detail with reference to accompanying drawing.Those skilled in the art is to be understood that, embodiment that this specification is put down in writing and the structure shown in the accompanying drawing only are preferred embodiment of the present utility model, but the utility model is not limited thereto, and can carry out various distortion or change under the prerequisite of the scope that does not break away from thought of the present utility model.
Fig. 1 is the inboard schematic diagram according to back cover in the overtemperature protection structure of the portable terminal of the utility model embodiment; Fig. 2 illustrates the cutaway view that is arranged under the normal condition according to the projection made from marmem in the overtemperature protection structure of the portable terminal of the utility model embodiment, and Fig. 3 illustrates to be arranged at the cutaway view that is in extension state according to the projection made from marmem in the overtemperature protection structure of the portable terminal of the utility model embodiment.
As shown in the figure, the projection made from marmem 20 that comprises the inboard of the back cover 10 that is arranged at described portable terminal according to the overtemperature protection structure of portable terminal of the present utility model; Be arranged at alarm contact 31 on the printed circuit board (PCB) 30 in the face of described protruding 20.At this, the described projection made from marmem 20 is preferably the inboard that is fixedly set in described back cover 10 by welding.Should be known in the inboard that can described projection be fixedly installed described back cover for a person skilled in the art by other modes.
As shown in Figure 2, the projection made from marmem 20 during promptly less than first working temperature described later, can not contact with the alarm contact 31 of printed circuit board (PCB) 30 under normal condition.
But, as shown in Figure 3, portable terminal is after carrying out some application programs, because the driving of portable terminal inner member, the temperature of the related elements of portable terminal can raise gradually, phase-change characteristic according to marmem when the projection made with marmem at this moment, 20 reaches first working temperature along with the rising of temperature extends.Specifically, when the described projection made from marmem 20 reached first working temperature, described protruding 20 touched on the alarm contact 31 of printed circuit board (PCB) 30 through extension.At this moment,, can make the higher application program of portable terminal heating power out of service, perhaps can make portable terminal in display frame, show the icon or the literal of high temperature warning by the software/hardware design.This alarm contact makes the higher application program of portable terminal heating power out of service with protruding the contact, perhaps make portable terminal in display frame, show the icon or the literal of high temperature warning, be known technology for a person skilled in the art, so detailed.
At this, described first working temperature is the critical temperature that portable terminal can normally move, specifically, when projection 20 temperature during less than first working temperature, portable terminal can normally move, when projection 20 temperature is first working temperature when above, the probability of damage of each element of portable terminal is higher, and reliability can reduce.Hence one can see that, and this first working temperature can be decided according to the performance requirement of each parts of each portable terminal.
And, as shown in Figure 1, also comprise the battery osculating element 51 of the close position of the contact terminal 41 (shown in Fig. 4,5) that is arranged at battery 40 according to the overtemperature protection structure of the portable terminal of the utility model embodiment.
Fig. 4 is the schematic diagram that the state that the battery according to the portable terminal of the utility model embodiment is connected with contact chip is shown, and Fig. 5 is the schematic diagram that the state that separates according to the battery of the portable terminal of the utility model embodiment and contact chip is shown.
As shown in Figure 4 and Figure 5, described battery osculating element 51 comprises the contact chip 51 that an end 51a contacts with the power supply terminal 32 of printed circuit board (PCB) 30.Preferably, described contact chip 51 usefulness marmems are made, and the other end 51b of described contact chip 51 described contact chip 51 less than second working temperature time made from marmem contacts with the contact terminal 41 of battery 40, provide power supply to portable terminal thus, when reaching second working temperature, described contact chip 51 shrinks as the direction of arrow of Fig. 5 and breaks away from the contact terminal 41 of battery 40, supplies with to cut off to the power supply of portable terminal.
At this; preferably; described second working temperature is greater than described first working temperature; thereby portable terminal also can normally be run application under first working temperature; and when because portable terminal takes place unusual or when reaching second working temperature owing to the higher application program of user's forced service heat generation; phase-change characteristic according to marmem; the other end of contact chip 51 separates with the contact terminal 41 of battery 40; thereby cut off the electricity supply supply, make portable terminal become off-mode.Therefore, can prevent battery to run into high temperature and set off an explosion.
Though the battery 40 that figure 1 illustrates according to the portable terminal of the utility model embodiment is arranged in the battery installing port 11 of the central portion that is formed at back cover 10, but those skilled in the art should know, the battery of portable terminal can be arranged at other positions according to different designs.
And though in Fig. 4 and Fig. 5, the shape of contact chip forms the shape with a plurality of sweeps, and contact chip does not contact with described contact terminal by shrinking when reaching second working temperature.But should know for those skilled in the art, described contact chip also can constituting with marmem by other shapes, contact with the contact terminal of battery the time as long as can satisfy the other end of contact chip, get final product and when reaching second working temperature, separate with the contact terminal of battery less than second working temperature.
Below, the course of work of the portable terminal of the utility model embodiment is described.
Under normal condition, the projection made from marmem 20 that is arranged at back cover 10 inboards of portable terminal does not touch the alarm contact 31 that is arranged on the printed circuit board (PCB) 30, and the other end of a plurality of contact chip 51 also all is connected in the contact terminal 41 of battery 40.
Carry out the application program of portable terminal for a long time as the user, when thereby the temperature of each element of portable terminal raises, reach first working temperature if be arranged at the projection made from marmem 20 of back cover 10 inboards of portable terminal, then described protruding 20 touch the alarm contact 31 of printed circuit board (PCB) 30.In view of the above, according to the design of software or hardware, the application program that portable terminal heating power out of service is higher perhaps shows icon or the literal that high temperature is warned, to the user notification warning information on display unit.
At this moment, if portable terminal takes place unusual, perhaps the user ignores the high temperature warning and the function of forced service portable terminal, make the temperature of portable terminal continue raise, when reaching second working temperature, the contact chip made from marmem 51 is owing to the rising of temperature is out of shape, thereby the other end 51b of contact chip 51 separates with the contact terminal 41 of battery 40, thereby the supply of cutting off the electricity supply prevents that thus portable terminal is persistently overheating, and then prevents to run into high temperature and blast.
In sum; overtemperature protection structure according to portable terminal of the present utility model; can prevent portable terminal generation superheating phenomenon; thereby can improve the reliability of each element of portable terminal; but also Yin Gaowen can be prevented and the accident that sets off an explosion, thereby improved the safety in utilization of portable terminal.
More than, though specific embodiment of the utility model is illustrated, it will be appreciated by those skilled in the art that under the prerequisite that does not break away from scope of the present utility model and can carry out various distortion or change.
Claims (5)
1. the overtemperature protection structure of a portable terminal is characterized in that comprising: the projection made from marmem of inboard that is arranged at the back cover of described portable terminal; Be arranged at alarm contact on the printed circuit board (PCB) in the face of described projection,
Wherein, when the temperature of described projection during less than first working temperature, described projection and described alarm contact are spaced a predetermined distance from, and when reaching described first working temperature, described projection touches described alarm contact through extension.
2. the overtemperature protection structure of portable terminal according to claim 1 is characterized in that also comprising the contact terminal of adjacent cells and the battery osculating element that is provided with,
Described battery osculating element comprises the contact chip made from marmem, and an end of described contact chip contacts with the power supply terminal of described printed circuit board (PCB),
When the temperature of described contact chip during less than second working temperature, the other end of described contact chip contacts with described contact terminal, and the other end of described contact chip separates with described contact terminal when reaching second working temperature.
3. the overtemperature protection structure of portable terminal according to claim 2 is characterized in that, described second working temperature is greater than described first working temperature.
4. the overtemperature protection structure of portable terminal according to claim 1 is characterized in that, the described projection made from marmem is arranged at the inboard of described back cover by welding.
5. a portable terminal is characterized in that having any described overtemperature protection structure as in the claim 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206905527U CN201946506U (en) | 2010-12-21 | 2010-12-21 | Over-heat protection structure of portable terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206905527U CN201946506U (en) | 2010-12-21 | 2010-12-21 | Over-heat protection structure of portable terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201946506U true CN201946506U (en) | 2011-08-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206905527U Expired - Fee Related CN201946506U (en) | 2010-12-21 | 2010-12-21 | Over-heat protection structure of portable terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201946506U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105431021A (en) * | 2015-12-29 | 2016-03-23 | 小米科技有限责任公司 | Mobile device cooling structure and mobile device |
| CN110161924A (en) * | 2019-05-31 | 2019-08-23 | 维沃移动通信（杭州）有限公司 | The control method of terminal device and terminal device |
-
2010
- 2010-12-21 CN CN2010206905527U patent/CN201946506U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105431021A (en) * | 2015-12-29 | 2016-03-23 | 小米科技有限责任公司 | Mobile device cooling structure and mobile device |
| CN110161924A (en) * | 2019-05-31 | 2019-08-23 | 维沃移动通信（杭州）有限公司 | The control method of terminal device and terminal device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20181221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |