CN103500980B - The method of protective circuit plate and terminal - Google Patents
The method of protective circuit plate and terminal Download PDFInfo
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- CN103500980B CN103500980B CN201310418657.5A CN201310418657A CN103500980B CN 103500980 B CN103500980 B CN 103500980B CN 201310418657 A CN201310418657 A CN 201310418657A CN 103500980 B CN103500980 B CN 103500980B
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Abstract
The invention discloses a kind of method and terminal of protective circuit plate, belong to electronic circuit technology field.Method comprises: the groove detection whether short circuit using circuit board, and the groove of circuit board is positioned at the surrounding of circuit board; If the groove short circuit of circuit board detected, two contacts of then triggering electromagnetic relay flick, elastic element is made to be in normal condition, wherein, electromagnetic relay comprises two contacts, a contact of electromagnetic relay and one end of elastic element are separately fixed at the same side of circuit board, and another contact of electromagnetic relay is fixed on the shell of power-supply battery; By elastic element, power-supply battery and circuit board are flicked, the electrical connection of cut off the electricity supply battery and circuit board.The present invention is when groove short circuit being detected, flicked by two contacts of triggering electromagnetic relay, make elastic element be in normal condition, thus by elastic element, power-supply battery and circuit board are flicked, to cut off the electricity supply the electrical connection of battery and circuit board, circuit board can be avoided to be short-circuited and to damage.
Description
Technical field
The present invention relates to electronic circuit technology field, particularly a kind of method of protective circuit plate and terminal.
Background technology
Along with the continuous progress of society, the terminals such as such as mobile phone have become a part indispensable in people's daily life.And terminal is as a kind of electronic product, when its circuit board is in power-up state, if there is water to enter, be then easy to the situation of being short-circuited, cause circuit board terminal transient current excessive, thus cause the permanent damage of circuit board terminal.Therefore, in order to extend the useful life of terminal, the how protective circuit plate when terminal is intake, becomes the focus that people pay close attention to.
At present, usually take the mode blocked by place rubber gum cover externally exposed for circuit board, circuit board is protected.When after terminal water inlet, due to the iris action of rubber gum cover, circuit board can be entered by anti-sealing to a certain extent, thus realize the protection to circuit board.Such as, when there being a small amount of water droplet to splash terminal, because the place that circuit board is externally exposed is coated with rubber gum cover, therefore, water droplet can being stoped to enter circuit board, avoid circuit board and damage because being short-circuited.
Realizing in process of the present invention, inventor finds that above-mentioned technology at least exists following problem:
If terminal falls into the water accidentally, even if the place that then circuit board is externally exposed is coated with rubber gum cover, but when hydraulic pressure is excessive, its iris action is very micro-, and circuit board still can damage because being short-circuited; In addition, be accompanied with the terminal of rubber gum cover compared to conventional terminal, oversize and expensive, therefore, no matter based on outward appearance or consideration in price, domestic consumer all cannot bear, so the mode of this kind of protective circuit plate does not have universality.
Summary of the invention
In order to solve the problem of background technology, the invention provides a kind of method and terminal of protective circuit plate.Described technical scheme is as follows:
On the one hand, provide a kind of method of protective circuit plate, described method is applied to a kind of terminal, and described terminal comprises: circuit board, power-supply battery, electromagnetic relay and elastic element, and described method comprises:
Use the groove detection whether short circuit of described circuit board, the groove of described circuit board is positioned at the surrounding of described circuit board;
If the groove short circuit of described circuit board detected, two contacts of then triggering described electromagnetic relay flick, described elastic element is made to be in normal condition, wherein, described electromagnetic relay comprises two contacts, a contact of described electromagnetic relay and one end of described elastic element are separately fixed at the same side of described circuit board, and another contact of described electromagnetic relay is fixed on the shell of described power-supply battery;
By described elastic element, described power-supply battery and described circuit board are flicked, cut off the electrical connection of described power-supply battery and described circuit board.
Alternatively, described circuit board comprises PMIC(PowerManagementIntegratedCircuit, power management integrated circuit) chip;
The whether short circuit of the groove detection of the described circuit board of described use, comprising:
The pin be connected with the PMIC chip on described circuit board by the groove of described circuit board detects the whether short circuit of the inward flange of the groove of described circuit board and outward flange, and wherein, the outward flange ground connection of the groove of described circuit board, inward flange is connected to described PMIC chip.
Alternatively, described circuit board also comprises AP (ApplicationProcessor, application processor), normally closed switch and battery supply; Described electromagnetic relay also comprises the coil be positioned on described circuit board; AP on described circuit board is connected with described PMIC chip and described normally closed switch; Normally closed switch on described circuit board is connected with the coil of the electromagnetic relay be positioned on described circuit board, described AP and described battery supply;
Two contacts of the described electromagnetic relay of described triggering flick, and make described elastic element be in normal condition, comprising:
PMIC chip on described circuit board produces interrupt signal, by the connection pin of the PMIC chip on described circuit board and the AP on described circuit board described interrupt signal is transferred to the AP on described circuit board;
After AP on described circuit board receives described interrupt signal, the normally closed switch that the pin be connected with the normally closed switch on described circuit board by the AP on described circuit board is controlled on described circuit board disconnects, make the coil losing electricity of the electromagnetic relay be positioned on described circuit board, two contacts of described electromagnetic relay flick, and described elastic element is in normal condition.
Alternatively, whether the groove detection of described use described circuit board, after short circuit, also comprises:
If the groove short circuit of described circuit board do not detected, then described elastic element is in compressive state, two closings of contact of described electromagnetic relay, the coil being positioned at the electromagnetic relay on described circuit board powers on, described power-supply battery is the battery power on described circuit board, and described power-supply battery and described circuit board realize being electrically connected.
On the other hand, provide a kind of terminal, described terminal comprises: circuit board, power-supply battery, electromagnetic relay and elastic element, and the surrounding of described circuit board has groove, and described electromagnetic relay comprises two contacts;
Wherein, a contact of described electromagnetic relay and one end of described elastic element are separately fixed at the same side of described circuit board, and another contact of described electromagnetic relay is fixed on the shell of described power-supply battery.
Alternatively, when two contacts of described electromagnetic relay flick, described elastic element is in normal condition, and described power-supply battery and described circuit board disconnect and being electrically connected.
Alternatively, when described elastic element is in compressive state, two closings of contact of described electromagnetic relay, described circuit board is electrically connected by described elastic element and described power-supply battery.
Alternatively, described circuit board comprises PMIC chip;
Described PMIC chip is connected with the groove of described circuit board, and wherein, the outward flange ground connection of the groove of described circuit board, inward flange is connected to described PMIC chip.
Alternatively, described circuit board also comprises AP, normally closed switch and battery supply; Described electromagnetic relay also comprises the coil be positioned on described circuit board; AP on described circuit board is connected with described PMIC chip and described normally closed switch; Normally closed switch on described circuit board is connected with the coil of the electromagnetic relay be positioned on described circuit board, described AP and described battery supply.
Alternatively, when described elastic element is in compressive state, two closings of contact of described electromagnetic relay, the coil being positioned at the electromagnetic relay on described circuit board powers on, normally closed switch on described circuit board closes, described power-supply battery is the battery power of described circuit board, and described power-supply battery and described circuit board realize being electrically connected.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
When the groove short circuit of circuit board being detected, flicked by two contacts of triggering electromagnetic relay, elastic element is made to be in normal condition, thus by elastic element, power-supply battery and circuit board are flicked, and then the electrical connection of cut off the electricity supply battery and circuit board, the electrical connection of the instantaneous trip power-supply battery after terminal water inlet and circuit board can being realized, the situation that can effectively avoid circuit board to damage because being short-circuited, improve the survival probability of the rear circuit board of terminal water inlet; And only increase electromagnetic relay and elastic element when protective circuit plate, no matter based on outward appearance or consideration in price, the mode of this kind of protection terminal all has universality.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the method flow diagram of a kind of protective circuit plate that the embodiment of the present invention one provides;
Fig. 2 is the integrated stand composition of a kind of terminal that the embodiment of the present invention two provides;
Fig. 3 is the method flow diagram of a kind of protective circuit plate that the embodiment of the present invention two provides;
Fig. 4 is the structural representation of a kind of terminal that the embodiment of the present invention three provides;
Fig. 5 is the structural representation of the another kind of terminal that the embodiment of the present invention three provides.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment one
Embodiments provide a kind of method of protective circuit plate, the method is applied to a kind of terminal, and terminal comprises: circuit board, power-supply battery, electromagnetic relay and elastic element.See Fig. 1, the method flow that the present embodiment provides comprises:
101: the groove detection whether short circuit using circuit board, the groove of circuit board is positioned at the surrounding of circuit board;
Alternatively, circuit board comprises PMIC chip;
Use the groove detection whether short circuit of circuit board, include but not limited to:
The whether short circuit of the inward flange of the groove of the pin testing circuit plate be connected with the PMIC chip on circuit board by the groove of circuit board and outward flange, wherein, the outward flange ground connection of the groove of circuit board, inward flange is connected to PMIC chip.
Alternatively, whether the groove detection using circuit board, after short circuit, also comprises:
If the groove short circuit of circuit board do not detected, then elastic element is in compressive state, two closings of contact of electromagnetic relay, and the coil being positioned at the electromagnetic relay on circuit board powers on, power-supply battery is the battery power on circuit board, and power-supply battery and circuit board realize being electrically connected.
102: if the groove short circuit of circuit board detected, two contacts of then triggering electromagnetic relay flick, elastic element is made to be in normal condition, wherein, electromagnetic relay comprises two contacts, a contact of electromagnetic relay and one end of elastic element are separately fixed at the same side of circuit board, and another contact of electromagnetic relay is fixed on the shell of power-supply battery;
Alternatively, circuit board also comprises AP, normally closed switch and battery supply; Electromagnetic relay also comprises the coil be positioned on circuit board; AP and PMIC chip on circuit board and normally closed switch are connected; The coil of the normally closed switch on circuit board and the electromagnetic relay be positioned on circuit board, AP and battery supply are connected;
Two contacts of triggering electromagnetic relay flick, and make elastic element be in normal condition, include but not limited to:
PMIC chip on circuit board produces interrupt signal, by the connection pin of the PMIC chip on circuit board and the AP on circuit board interrupt signal is transferred to the AP on circuit board;
After AP on circuit board receives interrupt signal, normally closed switch on the pin control circuit board be connected with the normally closed switch on circuit board by the AP on circuit board is disconnected, make the coil losing electricity of the electromagnetic relay be positioned on circuit board, two contacts of electromagnetic relay flick, and elastic element is in normal condition.
103: by elastic element, power-supply battery and circuit board are flicked, the electrical connection of cut off the electricity supply battery and circuit board.
The method that the present embodiment provides, when the groove short circuit of circuit board being detected, flicked by two contacts of triggering electromagnetic relay, elastic element is made to be in normal condition, thus by elastic element, power-supply battery and circuit board are flicked, and then the electrical connection of cut off the electricity supply battery and circuit board, the electrical connection of the instantaneous trip power-supply battery after terminal water inlet and circuit board can be realized, the situation that can effectively avoid circuit board to damage because being short-circuited, improves the survival probability of the rear circuit board of terminal water inlet; And only increase electromagnetic relay and elastic element when protective circuit plate, no matter based on outward appearance or consideration in price, the mode of this kind of protection terminal all has universality.
Embodiment two
Embodiments provide a kind of method of protective circuit plate, the method is applied to a kind of terminal, and see Fig. 2, this terminal comprises: circuit board, power-supply battery, electromagnetic relay and elastic element; Wherein, electromagnetic relay comprises two contacts and a coil be positioned on circuit board, and one end of electromagnetic relay contact and elastic element is separately fixed at the same side of circuit board, another contact of electromagnetic relay is fixed on the shell of power-supply battery; Circuit board comprises: PMIC chip, AP, normally closed switch and battery supply; The surrounding of circuit board has groove, the outward flange ground connection of the groove of this circuit board, and inward flange is connected to described PMIC chip; The coil of normally closed switch and electromagnetic relay, AP and battery supply are connected.Now in conjunction with foregoing, explanation is explained in detail to the mode of the protective circuit plate that the embodiment of the present invention provides.See Fig. 3, the method flow that the present embodiment provides comprises:
301: the groove detection whether short circuit using circuit board;
For this step, the width of the groove of circuit board specifically can be 1 millimeter, the degree of depth specifically can be 2 millimeters, the width of the groove of certain circuit board is except above-mentioned numerical value 1 millimeter and the degree of depth are except above-mentioned numerical value 2 millimeters, also can be other numerical value, such as, width to be 0.05 millimeter or the degree of depth be 1.5 millimeters etc., the present embodiment does not specifically limit the width of the groove of circuit board and the degree of depth.
Wherein, the specific implementation of the groove detection using circuit board whether short circuit, includes but not limited to:
The whether short circuit of the inward flange of the groove of the pin testing circuit plate be connected with the PMIC chip on circuit board by the groove of circuit board and outward flange, wherein, the outward flange ground connection of the groove of circuit board, inward flange is connected to PMIC chip.
Need to illustrate time, it may be because groove enters caused by electrolyte solution that groove is short-circuited, such as, groove water inlet or oil-feed etc.; No matter there is which kind of electrolyte solution in groove, because electrolyte solution has conductivity, therefore groove ground connection outward flange be connected the inward flange of PMIC chip by successful conducting, thus cause the ground connection outward flange of groove and be connected the inward flange short circuit of PMIC chip; When the ground connection outward flange of groove is short-circuited with the inward flange being connected PMIC chip, the pin that groove is connected with PMIC chip just can detect low level (level value is 0), namely, when the pin be connected with PMIC chip when groove detects low level, circuit board is likely in into water state.
Wherein, the pin that groove is connected with PMIC chip specifically can be switch and detects pin (keypadsense), certainly, the pin that groove is connected with PMIC chip is except above-mentioned switch detects pin, also can be the PMIC chip pin of other types, the type of the present embodiment to the pin that groove is connected with PMIC chip does not specifically limit.
302: if the groove short circuit of circuit board detected, then PMIC chip on circuit board produces interrupt signal, by the connection pin of the PMIC chip on circuit board and the AP on circuit board interrupt signal is transferred to the AP on circuit board;
For this step, owing to the PMIC chip on circuit board being provided with GPIO(GeneralPurposeInput/Output, universal input/output) pin, therefore, when transmitting this interrupt signal, the GPIO pin by the PMIC chip on circuit board is transmitted; Certainly, except above-mentioned GPIO pin, the PMIC chip pin of other types also can be adopted to send this terminal signaling, the type of the present embodiment to the pin of this interrupt signal of transmission does not specifically limit.In addition, due to the AP on circuit board being provided with GPIO pin equally, therefore, the interrupt signal of PMIC chip transmission is received by GPIO pin; Certainly, except above-mentioned GPIO pin, the AP pin of other types also can be adopted to receive this interrupt signal, the type of the present embodiment to the pin receiving this interrupt signal does not specifically limit equally.
It should be noted that, the priority of the interrupt signal that the pin that groove is connected with PMIC chip produces is higher than other all interrupt signals, to ensure after this interrupt signal of generation, this interrupt signal is transferred to the AP on circuit board by the very first time via the connection pin of the PMIC chip on circuit board and the AP on circuit board, thus makes the AP on circuit board take corresponding measure to damage because being short-circuited to avoid circuit board fast.
303: after the AP on circuit board receives interrupt signal, normally closed switch on the pin control circuit board be connected with the normally closed switch on circuit board by the AP on circuit board is disconnected, make the coil losing electricity of the electromagnetic relay be positioned on circuit board, two contacts of electromagnetic relay flick, and elastic element is in normal condition;
For this step, after the AP on circuit board receives this interrupt signal, normally closed switch on the pin control circuit board be connected with normally closed switch by the AP on circuit board is disconnected, and be connected with battery supply by the normally closed switch on circuit board due to the coil being positioned at the electromagnetic relay on circuit board, therefore, after normally closed switch on circuit boards disconnects, the coil being positioned at the electromagnetic relay on circuit board is just in power failure state, thus the electromagnetic force of coil disappears; And due to the disappearance of electromagnetic force, two contacts of electromagnetic relay also cannot continue to be kept closed, and two contacts flick; After two contacts of electromagnetic relay flick, elastic element also cannot continue to keep compressive state again, changes normal condition into by compressive state.
Step 304: power-supply battery and circuit board are flicked by elastic element, the electrical connection of cut off the electricity supply battery and circuit board;
For this step, transfer in the process of normal condition at elastic element by compressive state, elastic element release elastic force also flicks, thus drives power-supply battery and circuit board to flick, and reaches the object that cut off the electricity supply battery and circuit board are electrically connected.
Wherein, elastic element specifically can be spring, and certainly, the type of elastic element, except spring, can also be the elastic element of other types, and such as, elastic air cushion etc., the type of the present embodiment to elastic element does not specifically limit.
Step 305: if the groove short circuit of circuit board do not detected, then elastic element is in compressive state, two closings of contact of electromagnetic relay, the coil being positioned at the electromagnetic relay on circuit board powers on, power-supply battery is the battery power on circuit board, and power-supply battery and circuit board realize being electrically connected.
Wherein, when terminal is in normal condition, when inserting power-supply battery, elastic element changes compressive state into by normal condition due to the effect being subject to external force, thus drives two closings of contact of electromagnetic relay; Now, circuit board and power-supply battery are in electrical connection state, are the Power supply of circuit board by power-supply battery; And the electromagnetic relay coil be positioned on circuit board is connected with battery supply by the normally closed switch on circuit board, therefore, coil is in power-up state this moment, produces electromagnetic force; After coil produces electromagnetic force, due to the effect of electromagnetic force, two contacts of electromagnetic relay are kept closed continuing, and elastic element also continues to keep compressive state because of the closed of electromagnetic relay two contacts, thus realizing circuit plate is electrically connected by elastic element and power-supply battery.Thus circuit board can keep good electrical to be connected with power-supply battery under without the effect of external force.
The method that the present embodiment provides, when the groove short circuit of circuit board being detected, flicked by two contacts of triggering electromagnetic relay, elastic element is made to be in normal condition, thus by elastic element, power-supply battery and circuit board are flicked, and then the electrical connection of cut off the electricity supply battery and circuit board, the electrical connection of the instantaneous trip power-supply battery after terminal water inlet and circuit board can be realized, the situation that can effectively avoid circuit board to damage because being short-circuited, improves the survival probability of the rear circuit board of terminal water inlet; And only increase electromagnetic relay and elastic element when protective circuit plate, no matter based on outward appearance or consideration in price, the mode of this kind of protection terminal all has universality.
Embodiment three
Embodiments provide a kind of terminal, for performing the method that above-described embodiment one or embodiment two provide, see Fig. 4, this terminal comprises:
Circuit board 41, power-supply battery 42, electromagnetic relay 43 and elastic element 44, the surrounding of circuit board has groove 411, and electromagnetic relay comprises two contacts 431 and 432;
Wherein, a contact 431 of electromagnetic relay 43 and one end of elastic element 44 are separately fixed at the same side of circuit board 41, and another contact 432 of electromagnetic relay 43 is fixed on the shell of power-supply battery 42.
Alternatively, when two contacts 431 and 432 of electromagnetic relay 43 flick, elastic element 44 is in normal condition, and power-supply battery 42 and circuit board 41 disconnect and being electrically connected.
Alternatively, when elastic element 44 is in compressive state, two contacts 431 and 432 of electromagnetic relay 43 close, and circuit board 41 is electrically connected by elastic element 44 and power-supply battery 42.
Alternatively, see Fig. 5, circuit board 431 comprises PMIC chip 412;
PMIC chip 412 is connected with the groove 411 of circuit board 41, and wherein, the outward flange ground connection of the groove 411 of circuit board 41, inward flange is connected to PMIC chip 412.
Alternatively, circuit board 41 also comprises AP413, normally closed switch 414 and battery supply 415; Electromagnetic relay 43 also comprises the coil 433 be positioned on circuit board 41; AP413 and PMIC chip 412 on circuit board 41 and normally closed switch 414 are connected; The coil 433 of the normally closed switch 414 on circuit board 41 and the electromagnetic relay 43 be positioned on circuit board 41, AP413 and battery supply 415 are connected.
Alternatively, when elastic element 44 is in compressive state, two contacts 431 and 432 of electromagnetic relay 43 close, the coil 433 being positioned at the electromagnetic relay 43 on circuit board 41 powers on, normally closed switch 414 on circuit board 41 closes, power-supply battery 42 is that the battery supply 415 on circuit board 41 is powered, and power-supply battery 42 and circuit board 41 realize being electrically connected.
In sum, the terminal that the present embodiment provides, when the groove short circuit of circuit board being detected, flicked by two contacts of triggering electromagnetic relay, elastic element is made to be in normal condition, thus by elastic element, power-supply battery and circuit board are flicked, and then the electrical connection of cut off the electricity supply battery and circuit board, the electrical connection of the instantaneous trip power-supply battery after terminal water inlet and circuit board can be realized, the situation that can effectively avoid circuit board to damage because being short-circuited, improves the survival probability of the rear circuit board of terminal water inlet; And only increase electromagnetic relay and elastic element when protective circuit plate, no matter based on outward appearance or consideration in price, the mode of this kind of protection terminal all has universality.
It should be noted that: the terminal that above-described embodiment provides is when protective circuit plate; only be illustrated with the division of above-mentioned each functional module; in practical application; can distribute as required and by above-mentioned functions and be completed by different functional modules; internal structure by terminal is divided into different functional modules, to complete all or part of function described above.In addition, the embodiment of the method for the terminal that above-described embodiment provides and protective circuit plate belongs to same design, and its specific implementation process refers to embodiment of the method, repeats no more here.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can have been come by hardware, the hardware that also can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a method for protective circuit plate, is characterized in that, described method is applied to a kind of terminal, and described terminal comprises: circuit board, power-supply battery, electromagnetic relay and elastic element, and described method comprises:
Use the groove detection whether short circuit of described circuit board, the groove of described circuit board is positioned at the surrounding of described circuit board;
If the groove short circuit of described circuit board detected, two contacts of then triggering described electromagnetic relay flick, described elastic element is made to be in normal condition, wherein, described electromagnetic relay comprises two contacts, a contact of described electromagnetic relay and one end of described elastic element are separately fixed at the same side of described circuit board, and another contact of described electromagnetic relay is fixed on the shell of described power-supply battery;
By described elastic element, described power-supply battery and described circuit board are flicked, cut off the electrical connection of described power-supply battery and described circuit board;
Described circuit board comprises power management integrated circuit PMIC chip;
The whether short circuit of the groove detection of the described circuit board of described use, comprising:
The pin be connected with the PMIC chip on described circuit board by the groove of described circuit board detects the whether short circuit of the inward flange of the groove of described circuit board and outward flange, and wherein, the outward flange ground connection of the groove of described circuit board, inward flange is connected to described PMIC chip.
2. method according to claim 1, is characterized in that, described circuit board also comprises application processor AP, normally closed switch and battery supply; Described electromagnetic relay also comprises the coil be positioned on described circuit board; AP on described circuit board is connected with described PMIC chip and described normally closed switch; Normally closed switch on described circuit board is connected with the coil of the electromagnetic relay be positioned on described circuit board, described AP and described battery supply;
Two contacts of the described electromagnetic relay of described triggering flick, and make described elastic element be in normal condition, comprising:
PMIC chip on described circuit board produces interrupt signal, by the connection pin of the PMIC chip on described circuit board and the AP on described circuit board described interrupt signal is transferred to the AP on described circuit board;
After AP on described circuit board receives described interrupt signal, the normally closed switch that the pin be connected with the normally closed switch on described circuit board by the AP on described circuit board is controlled on described circuit board disconnects, make the coil losing electricity of the electromagnetic relay be positioned on described circuit board, two contacts of described electromagnetic relay flick, and described elastic element is in normal condition.
3. method according to claim 2, is characterized in that, whether the groove detection of described use described circuit board, after short circuit, also comprises:
If the groove short circuit of described circuit board do not detected, then described elastic element is in compressive state, two closings of contact of described electromagnetic relay, the coil being positioned at the electromagnetic relay on described circuit board powers on, described power-supply battery is the battery power on described circuit board, and described power-supply battery and described circuit board realize being electrically connected.
4. a terminal, is characterized in that, described terminal comprises: circuit board, power-supply battery, electromagnetic relay and elastic element, and the surrounding of described circuit board has groove, and described electromagnetic relay comprises two contacts;
Wherein, a contact of described electromagnetic relay and one end of described elastic element are separately fixed at the same side of described circuit board, and another contact of described electromagnetic relay is fixed on the shell of described power-supply battery;
Described circuit board comprises power management integrated circuit PMIC chip;
Described PMIC chip is connected with the groove of described circuit board, and wherein, the outward flange ground connection of the groove of described circuit board, inward flange is connected to described PMIC chip.
5. terminal according to claim 4, is characterized in that, when two contacts of described electromagnetic relay flick, described elastic element is in normal condition, and described power-supply battery and described circuit board disconnect and being electrically connected.
6. terminal according to claim 4, is characterized in that, when described elastic element is in compressive state, two closings of contact of described electromagnetic relay, described circuit board is electrically connected by described elastic element and described power-supply battery.
7. terminal according to claim 4, is characterized in that, described circuit board also comprises application processor AP, normally closed switch and battery supply; Described electromagnetic relay also comprises the coil be positioned on described circuit board; AP on described circuit board is connected with described PMIC chip and described normally closed switch; Normally closed switch on described circuit board is connected with the coil of the electromagnetic relay be positioned on described circuit board, described AP and described battery supply.
8. terminal according to claim 7, it is characterized in that, when described elastic element is in compressive state, two closings of contact of described electromagnetic relay, the coil being positioned at the electromagnetic relay on described circuit board powers on, normally closed switch on described circuit board closes, and described power-supply battery is the battery power of described circuit board, and described power-supply battery and described circuit board realize being electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310418657.5A CN103500980B (en) | 2013-09-13 | 2013-09-13 | The method of protective circuit plate and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310418657.5A CN103500980B (en) | 2013-09-13 | 2013-09-13 | The method of protective circuit plate and terminal |
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| Publication Number | Publication Date |
|---|---|
| CN103500980A CN103500980A (en) | 2014-01-08 |
| CN103500980B true CN103500980B (en) | 2016-04-13 |
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| CN201310418657.5A Active CN103500980B (en) | 2013-09-13 | 2013-09-13 | The method of protective circuit plate and terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110867019B (en) * | 2019-12-11 | 2024-04-19 | 沈阳圣达金卡科技有限公司 | Shared massage gun terminal device and interaction method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2781623Y (en) * | 2005-04-19 | 2006-05-17 | 廖元彬 | Water-proof mobile phone |
| CN201657083U (en) * | 2010-03-18 | 2010-11-24 | 中兴通讯股份有限公司 | Electronic waterproof protection circuit as well as electronic waterproof terminal |
| CN101945534A (en) * | 2010-09-01 | 2011-01-12 | 惠州Tcl移动通信有限公司 | Method and circuit for protecting circuit board in case of water inflow of mobile terminal and mobile terminal |
-
2013
- 2013-09-13 CN CN201310418657.5A patent/CN103500980B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2781623Y (en) * | 2005-04-19 | 2006-05-17 | 廖元彬 | Water-proof mobile phone |
| CN201657083U (en) * | 2010-03-18 | 2010-11-24 | 中兴通讯股份有限公司 | Electronic waterproof protection circuit as well as electronic waterproof terminal |
| CN101945534A (en) * | 2010-09-01 | 2011-01-12 | 惠州Tcl移动通信有限公司 | Method and circuit for protecting circuit board in case of water inflow of mobile terminal and mobile terminal |
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| Publication number | Publication date |
|---|---|
| CN103500980A (en) | 2014-01-08 |
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