CN101646302A - Circuit board for compatible standby battery and capacitor and method for packaging standby battery - Google Patents
Circuit board for compatible standby battery and capacitor and method for packaging standby battery Download PDFInfo
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- CN101646302A CN101646302A CN200910051218A CN200910051218A CN101646302A CN 101646302 A CN101646302 A CN 101646302A CN 200910051218 A CN200910051218 A CN 200910051218A CN 200910051218 A CN200910051218 A CN 200910051218A CN 101646302 A CN101646302 A CN 101646302A
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- electric capacity
- terminal pad
- reserve battery
- wiring board
- battery
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Abstract
The invention discloses a circuit board for a compatible standby battery and a capacitor and a method for packaging the standby battery. The area of an installation position on the circuit board is only provided with a cathode bonding pad which can satisfy the use of the standby battery and the capacitor simultaneously, and the cathode bonding pad can be used whether the spare battery scheme or the capacitor scheme is adopted. Therefore, the circuit board can effectively save the PCB space relative to two cathode bonding pads (the standby battery and the capacitor is respectively provided withone cathode bonding pad), and meanwhile, the compatibility of the standby battery and the capacitor can be achieved.
Description
Technical field
The present invention relates to the wiring board field of portable terminal, the wiring board of particularly a kind of compatible standby battery and electric capacity and the method for packaging standby battery.
Background technology
Along with the development of society, mobile phone and people's life is more and more closely related, and its function is in continuous increase, and various functions such as photograph, MP3, broadcast receiver, bluetooth, TV, seven-color LED are of common occurrence.But not all sometimes user group needs these functions, so the mobile phones design merchant just need release the product with difference in functionality at different user groups.
In order to realize the multiple function of mobile phone, design phase at mobile phone should be taken into account a plurality of functions as much as possible, on limited PCB (wiring board) space, realize multi-purpose compatibility, and produce according to requirements of different users, the related device of unwanted function does not add wherein, so just can raise the efficiency greatly, shorten the design cycle of product, effectively reduce cost.
After preventing the mobile phone power down, the Time of Day of its storage is not lost, and the configuration stand-by power supply continues as system's real-time clock RTC power supply when mobile phones design, and system informations such as assurance date, time can not lost.As Fig. 1, the mobile phone that has the time can dispose a little reserve battery in design on PCB, after the mobile phone power down, reserve battery can continue as system constantly clock RTC partly power, guarantee that system informations such as date, time can not lose.As Fig. 2, in some low terminals,, often use an electric capacity to replace reserve battery in order to save cost, (length of time is relevant with the capacitance size) can keep the power supply of system clock in a bit of time of mobile phone power down.These above two kinds of methods are commonly used in practice to be arrived, but all is single patterns, that is to say if prepares first mode of employing, and PCO only reserves the position of reserve battery during mobile phones design so; If prepare to adopt the second way, PCD only reserves the position of electric capacity during mobile phones design so.But with single pattern mainly is in order to save the space of PCB, if for reserve battery and electric capacity all stay the position, has so just caused the anxiety in PCB space.
Summary of the invention
The method that the purpose of this invention is to provide the wiring board and the packaging standby battery of a kind of compatible standby battery and electric capacity, the compatibility of reserve battery and electric capacity does not also cause PCB space anxiety simultaneously on the realization wiring board.
The invention provides the wiring board of a kind of compatible standby battery and electric capacity, it is applicable to field of mobile terminals, described wiring board is reserved the installation site of described reserve battery and electric capacity, described installation site area distribution has negative terminal pad and positive terminal pad of the negative terminal pad of a described reserve battery, a described electric capacity, and a described positive terminal pad is mated the positive pole of described reserve battery and the positive pole of described electric capacity.
The electric capacity solder pad space length of the spacing overgauge of the negative terminal pad of described electric capacity and described positive terminal pad.
Described positive terminal pad is vacant near the area part at described reserve battery center, is beneficial to the encapsulation of described reserve battery.
The zone, installation site of described electric capacity has the sign of silk-screen, is beneficial to the paster location.
On the other hand, the invention provides a kind of on described wiring board the method for packaging standby battery, the positive pole of described reserve battery is welded on the described positive terminal pad, its negative pole is welded on the negative terminal pad of described reserve battery, in the welded encapsulation process, the negative terminal pad of the electric capacity on the described wiring board does not go up tin cream.
Described reserve battery is when encapsulation, and its bottom keeps predetermined gap with described wiring board.
Adopt the wiring board of a kind of compatible standby battery of the present invention and electric capacity and the method for packaging standby battery, zone, installation site on this wiring board has only a positive terminal pad, this positive terminal pad can satisfy the use of reserve battery and electric capacity simultaneously, no matter adopting the reserve battery scheme still is the electric capacity scheme, a described positive terminal pad all can be used.So when two positive terminal pad are arranged (reserve battery and electric capacity respectively have a positive terminal pad), the present invention has just effectively saved the PCB space, has also realized the compatibility of reserve battery and electric capacity simultaneously.
Description of drawings
It is the structural representation that cell phone system RTC partly powers that Fig. 1 is to use reserve battery;
It is the structural representation that cell phone system RTC partly powers that Fig. 2 is to use electric capacity;
Fig. 3 is the packing forms schematic diagram of reserve battery;
Fig. 4 is the packing forms schematic diagram of electric capacity;
Fig. 5 is simply the be arranged side by side schematic diagram of form of reserve battery and electric capacity;
Fig. 6 is the schematic diagram of reserve battery of the present invention and the compatible package design of electric capacity;
Fig. 7 schematic diagram that to be the reserve battery positive terminal pad align in the horizontal direction and put with tantalum capacitance cathode pad;
Welding effect front view when Fig. 8 is a welded encapsulation electric capacity of the present invention;
Fig. 9 is the end view of Fig. 8.
Embodiment
Further specify technical scheme of the present invention below in conjunction with drawings and Examples.
Introduce the packing forms of reserve battery and electric capacity earlier, referring to Fig. 3, Fig. 3 is packing forms signal Figure 30 of reserve battery, circle is a reserve battery physical size 33 among the figure, "+" is the anodal sign of reserve battery, all can be imprinted on the pcb board when making PCB, makes things convenient for the device location; Also have reserve battery positive terminal pad 31 and negative terminal pad 32.Referring to Fig. 4, Fig. 4 is packing forms signal Figure 40 of a kind of electric capacity, comprises electric capacity physical size 44, assembling picture frame 43 and positive terminal pad 41 and negative terminal pad 42.
If simply reserve battery is arranged in electric capacity, as shown in Figure 5, this will occupy bigger PCB space, and in multi-functional design nowadays, it is especially valuable that the PCB space shows, so this method is inadvisable.
Referring to Fig. 6, in the circuit board,, will save a lot of PCB spaces so if make reserve battery and the shared positive terminal pad 61 of electric capacity, only need the space of a reserve battery to get final product compatible these two devices, need additionally to take the PCB space hardly.
As an embodiment, reserve battery is selected RB414 IV01E for use, and electric capacity is selected the tantalum electric capacity F920J226MPA of the CASEP encapsulation of 22u for use.Referring to Fig. 7, put if the positive terminal pad of reserve battery alignd in the horizontal direction with the positive terminal pad of tantalum electric capacity, because the positive terminal pad of reserve battery is bigger than the positive terminal pad of tantalum electric capacity, then the spacing of the positive pole of tantalum electric capacity and negative terminal pad only is 0.4mm, because pad is bigger, the amount of brush tin cream is bigger, considers a small amount of displacement when fabrication error causes paster again, is easy to take place the short circuit phenomenon at electric capacity two ends in this case.So the negative terminal pad of tantalum electric capacity need be moved down, makes the more general standard of spacing of its pad want big, as shown in Figure 6.Described positive terminal pad, because the needs of reserve battery encapsulation in lower right corner disappearance sub-fraction (promptly this part is vacant), because anodal pad integral body is bigger, can not influence welding, welding effect still can reach Fig. 8 and shown in Figure 9.Referring to Fig. 8 and Fig. 9, Fig. 8 and Fig. 9 are respectively the front view and the end views of electric capacity welding effect, and black entity part 60 was the tin cream shape behind the stove.As seen from the figure, device is climbed the tin height and met target call fully, and the solder joint surface is concavity, and is good with the bottom land welding, do not have the welding abnormal conditions, meets international electronic circuit interconnection and encapsulation association and IPC-A-610D standard-required.
If wiring board need use reserve battery and not use electric capacity, to notice when making steel mesh in the production that tantalum electric capacity negative pole do not go up tin cream, can prevent short circuit phenomenon like this.Should note when the reserve battery device is selected not being close to pcb board bottom it, and should leave some gaps a little, avoid battery and the short circuit of electric capacity negative terminal pad.
Problems such as in PCB design, tantalum electric capacity need add silk-screen, locatees when being convenient to paster like this, and the device positioning mark is indeterminate in avoiding producing are enhanced productivity, as shown in Figure 4.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in claims scope of the present invention variation, the modification of above embodiment.
Claims (6)
1, the wiring board of a kind of compatible standby battery and electric capacity, it is applicable to field of mobile terminals, described wiring board is reserved the installation site of described reserve battery and electric capacity, it is characterized in that, described installation site area distribution has negative terminal pad and positive terminal pad of the negative terminal pad of a described reserve battery, a described electric capacity, and a described positive terminal pad is mated the positive pole of described reserve battery and the positive pole of described electric capacity.
2, wiring board as claimed in claim 1 is characterized in that, the electric capacity solder pad space length of the spacing overgauge of the negative terminal pad of described electric capacity and described positive terminal pad.
3, wiring board as claimed in claim 1 or 2 is characterized in that, described positive terminal pad is vacant near the area part at described reserve battery center, is beneficial to the encapsulation of described reserve battery.
4, wiring board as claimed in claim 3 is characterized in that, the zone, installation site of described electric capacity has the sign of silk-screen, is beneficial to the paster location.
5, a kind of on the described wiring board of claim 1 method of packaging standby battery, the positive pole of described reserve battery is welded on the described positive terminal pad, its negative pole is welded on the negative terminal pad of described reserve battery, it is characterized in that, in the welded encapsulation process, the negative terminal pad of the electric capacity on the described wiring board does not go up tin cream.
6, method as claimed in claim 5 is characterized in that, described reserve battery is when encapsulation, and its bottom keeps predetermined gap with described wiring board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910051218A CN101646302A (en) | 2009-05-14 | 2009-05-14 | Circuit board for compatible standby battery and capacitor and method for packaging standby battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910051218A CN101646302A (en) | 2009-05-14 | 2009-05-14 | Circuit board for compatible standby battery and capacitor and method for packaging standby battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101646302A true CN101646302A (en) | 2010-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910051218A Pending CN101646302A (en) | 2009-05-14 | 2009-05-14 | Circuit board for compatible standby battery and capacitor and method for packaging standby battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101646302A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106061224A (en) * | 2016-07-28 | 2016-10-26 | 广东欧珀移动通信有限公司 | Mobile terminal |
| CN106455306A (en) * | 2016-11-30 | 2017-02-22 | 努比亚技术有限公司 | Pad shared structure, PCB (printed circuit board) and mobile terminal |
| CN107660074A (en) * | 2016-07-26 | 2018-02-02 | 佛山市顺德区美的电热电器制造有限公司 | Circuit board, circuit board with battery, manufacturing method of circuit board with battery and household appliance |
-
2009
- 2009-05-14 CN CN200910051218A patent/CN101646302A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107660074A (en) * | 2016-07-26 | 2018-02-02 | 佛山市顺德区美的电热电器制造有限公司 | Circuit board, circuit board with battery, manufacturing method of circuit board with battery and household appliance |
| CN106061224A (en) * | 2016-07-28 | 2016-10-26 | 广东欧珀移动通信有限公司 | Mobile terminal |
| CN106061224B (en) * | 2016-07-28 | 2019-03-01 | Oppo广东移动通信有限公司 | Mobile terminal |
| CN106455306A (en) * | 2016-11-30 | 2017-02-22 | 努比亚技术有限公司 | Pad shared structure, PCB (printed circuit board) and mobile terminal |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100210 |