CN202750337U - PCB (printed circuit board) with compatible single SIM (subscriber identity module) card base and dual SIM card base - Google Patents
PCB (printed circuit board) with compatible single SIM (subscriber identity module) card base and dual SIM card base Download PDFInfo
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- CN202750337U CN202750337U CN 201220400979 CN201220400979U CN202750337U CN 202750337 U CN202750337 U CN 202750337U CN 201220400979 CN201220400979 CN 201220400979 CN 201220400979 U CN201220400979 U CN 201220400979U CN 202750337 U CN202750337 U CN 202750337U
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- card
- protective resistance
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Abstract
The utility model discloses a PCB (printed circuit board) with compatible single SIM (subscriber identity module) card base and dual SIM card base. A single SIM card base welding disc, a dual SIM card base welding disc and a protecting unit which is used for preventing short circuit when a dual SIM card base is welded are arranged on the PCB, wherein the protecting unit is electrically connected with the single SIM card base welding disc. The requirement of a user on the function of a hand-held mobile terminal product is met by selectively welding a single SIM card base or the dual SIM card base. Due to the adoption of the way of the compatible single SIM card base and dual SIM card base, the space of the PCB is saved, the single-card single-standby function or the dual-card dual-standby function is realized by conveniently controlling a hand-held mobile terminal. Meanwhile, the protecting unit can prevent short circuit between a metal shell of the dual SIM card base and the single SIM card base welding disc when the dual SIM card base is welded, so that the hand-held mobile terminal which selects the dual SIM card base can be enabled to normally work.
Description
Technical field
The utility model relates to the mobile communication technology field, particularly the pcb board of a kind of compatible with single, double-SIM card base.
Background technology
Along with the development of mobile communication, the function of hand-held mobile terminal is more and more diversified, and its end product is gradually toward future developments such as little, thin, stand-by time length, stable performances.In order to cater to better the user to the individual requirement of hand-held mobile terminal, sell to the same a end product of different regions, such as mobile phone, there is certain difference in the function aspects that customizes.Some customer requirements mobile phones can insert two SIM cards simultaneously, and some customer requirements single deck tape-recorder lists are waited to get final product.
In the pcb board design of present hand-held mobile terminal, the SIM card seat often all is that direct paster is on pcb board.If the double SIM card design also needs simultaneously two independent single SIM card seats of paster.Can take so larger pcb board goods of furniture for display rather than for use zone, the wiring of pcb board is also had certain requirement, not only increase the cost of pcb board paster, also restrict the designing requirement of the slimming of hand-held mobile terminal.
In view of this, the utility model provides the pcb board of a kind of compatible with single, double-SIM card base.
The utility model content
In view of above-mentioned the deficiencies in the prior art part, the purpose of this utility model is to provide the pcb board of a kind of compatible with single, double-SIM card base, has the problem of short-circuit risks when not having compatible with single, double-SIM card base pad and welding double-SIM card base on the pcb board with the solution prior art.
In order to achieve the above object, the utility model has been taked following technical scheme:
The pcb board of a kind of compatible with single, double-SIM card base, wherein, the protected location of short circuit when described pcb board is provided with single SIM card seat pad, double-SIM card base pad and is used for preventing the double-SIM card base welding; Described protected location is electrically connected with single SIM card seat pad.
The pcb board of described compatible with single, double-SIM card base, wherein, described single SIM card seat pad is positioned at the inside of double-SIM card base pad.
The pcb board of described compatible with single, double-SIM card base, wherein, described single SIM card seat pad comprises: card clock end, card reset terminal, the first card power end, card data terminal, the second card power end and earth terminal; Described card clock end, card reset terminal and be connected data terminal and connect respectively clock signal terminal, reset signal end, the data-signal end of single SIM card seat; Described the first card power end be connected the card power end and all connect the power port of single SIM card seat; Described earth terminal ground connection.
The pcb board of described compatible with single, double-SIM card base, wherein, described double-SIM card base pad comprises: card clock end, card reset terminal, card power end, card data terminal, card state end and earth terminal; Described card clock end, card reset terminal and be connected data terminal and connect respectively clock signal terminal, reset signal end, the data-signal end of double-SIM card base; Described card power end and the power port that is connected the state end and all connects double-SIM card base; Described earth terminal ground connection.
The pcb board of described compatible with single, double-SIM card base, wherein, described double-SIM card base is double-layer SIM card seat.
The pcb board of described compatible with single, double-SIM card base, wherein, described protected location comprises the first protective resistance, the second protective resistance, the 3rd protective resistance and the 4th protective resistance; The reset signal end of described single SIM card seat connects the card reset terminal of single SIM card seat pad by the first protective resistance; the data-signal end of described single SIM card seat connects the card data terminal of single SIM card seat pad by the second protective resistance; the power port of described single SIM card seat connects the first card power end of single SIM card seat pad by the 3rd protective resistance, the clock signal terminal of described single SIM card seat connects the card clock end of single SIM card seat pad by the 4th protective resistance.
The pcb board of described compatible with single, double-SIM card base, wherein, described the first protective resistance, the second protective resistance, the 3rd protective resistance and the 4th protective resistance are 0 Ohmic resistance.
Compared to prior art; the compatible with single that the utility model provides; the pcb board of double-SIM card base; at pcb board single SIM card seat pad and double-SIM card base pad are set; and the protected location that is electrically connected with single SIM card seat pad; by the Selective Soldering list; a kind of in the double-SIM card base realizes that the user is to the functional requirement of hand-held mobile terminal product; this compatible with single; the mode of double-SIM card base has not only been saved the space of pcb board; also control easily hand-held mobile terminal and realize that the single deck tape-recorder list is treated or the function of double-card dual-standby; its metal shell and the short circuit of single SIM card seat pad when protected location can prevent the double-SIM card base welding simultaneously guarantee that the hand-held mobile terminal of choosing weldering double-SIM card base can work.
Description of drawings
Fig. 1 is the device position schematic diagram of the pcb board embodiment of the utility model compatible with single, double-SIM card base.
Fig. 2 is the pad schematic diagram of the pcb board embodiment of the utility model compatible with single, double-SIM card base.
Fig. 3 is the solder tray local enlarged diagram of the pcb board embodiment of the utility model compatible with single, double-SIM card base.
Fig. 4 is the circuit theory diagrams of single SIM card seat of the pcb board embodiment of the utility model compatible with single, double-SIM card base.
Fig. 5 is the circuit theory diagrams of double-SIM card base of the pcb board embodiment of the utility model compatible with single, double-SIM card base.
Fig. 6 is single SIM card seat of pcb board embodiment of the utility model compatible with single, double-SIM card base and the circuit theory diagrams of protected location.
Embodiment
The utility model provides a kind of compatible with single; the pcb board of double-SIM card base; by single SIM card seat pad and double-SIM card base pad are set on pcb board simultaneously; according to the demand of hand-held mobile terminal product design project and user's wish Selective Soldering list SIM card seat or double-SIM card base; reach compatible with single on a pcb board; the purpose of double-SIM card base; also be provided with simultaneously protected location; by selecting welding or when the method for welding protection unit realizes the welding double-SIM card base; prevent the pad short circuit of metal shell and single SIM card seat of double-SIM card base; both save the space size of pcb board, saved again the paster cost.
For making the purpose of this utility model, technical scheme and effect clearer, clear and definite, referring to the accompanying drawing embodiment that develops simultaneously the utility model is further described.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
The utility model provides the pcb board of a kind of compatible with single, double-SIM card base, and in the present embodiment, described hand-held mobile terminal sees also Fig. 1 take mobile phone as example, and it is the device position figure of the pcb board embodiment of the utility model compatible with single, double-SIM card base.As shown in Figure 1, be provided with many electronic devices on the pcb board, wherein, the welding position of single SIM card seat J6202 or double-SIM card base J6201 is shown in empty frame 10.In empty frame 10, if need to insert single SIM card, then select the single SIM card seat J6202 of welding; If need to insert double SIM card, then select welding double-SIM card base J6201.The area of the Area Ratio double-SIM card base J6201 of single SIM card seat J6202 is little.
Please consult simultaneously Fig. 2, it is the pad schematic diagram of the pcb board embodiment of the utility model compatible with single, double-SIM card base.As can be seen from Figure 2 all pads all are to stagger in independence and position, the phenomenon that does not link together, and so just can guarantee can short circuit between the whole circuit on the pcb board.
Please consult simultaneously Fig. 3, Fig. 4, Fig. 5 and Fig. 6, because Fig. 4, Fig. 5 are identical with the pad label of SIM card seat among Fig. 6, but the pin label is different, the meaning of pad label representative: SIMCLK is described at this first---card clock end, SIMRST---card reset terminal, SIMVCC1---the first card power end, SIMIO---card data terminal, SIMVCC2---the second card power end, GRPUNO---earth terminal, SIMVCC---card power end, SIMVPP---card state end, GND---earth terminal.
Simultaneously can find out the protected location (figure does not mark) of short circuit when pcb board is provided with single SIM card seat pad, double-SIM card base pad and is used for preventing the double-SIM card base welding in conjunction with the schematic diagram of double-SIM card base among the schematic diagram of single SIM card seat among Fig. 4 and Fig. 6 and Fig. 5; Described protected location is electrically connected with single SIM card seat pad.Wherein, described single SIM card seat pad is positioned at the inside (as shown in Figures 2 and 3) of double-SIM card base pad.
Please continue to consult Fig. 3 and Fig. 4, described single SIM card seat J6202 pad comprises: card clock end 1, card reset terminal 2, the first card power end 3, card data terminal 4, the second card power end 5 and earth terminal 6; Single SIM card seat J6202 has a signal end group UIM1, and as shown in Figure 4, it comprises: clock signal terminal UIM1_CLK, reset signal end UIM1_RESET, data-signal end UIM1_DATA, power port UIM1_VCC.
The card reset terminal 2 of described single SIM card seat J6202 and the reset signal end UIM1_RESET and the data-signal end UIM1_DATA that are connected data terminal 4 and connect respectively single SIM card seat J6202, the card clock end 1 of described single SIM card seat J6202 connects the clock signal terminal UIM1_CLK of single SIM card seat J6202 by the first resistance R 0, the first card power end 3 of described single SIM card seat J6202 be connected card power end 5 and all connect the power port UIM1_VCC of single SIM card seat J6202; The earth terminal 6 of described single SIM card seat J6202, the 7th pin, the 8th pin, the 9th pin and the equal ground connection of the 10th pin.
Wherein, as can be drawn from Figure 4, also comprise external power source port V_L_16_UIM1 in the schematic diagram of single SIM card seat J6202.Being connected between the power port UIM1_VCC of single SIM card seat J6202 and this external power source port V_L_16_UIM1 disconnects, but has a SYNONY M to mark at the holding wire of disconnection, and it is for being equal to symbol.Because in the schematic diagram mapping software, if represent that with two network titles same signal will report an error, in fact described power port UIM1_VCC among Fig. 4 and described external power source port V_L_16_UIM1 are exactly same signal port, can not report an error when guaranteeing in the schematic diagram mapping software design principle figure, just need to disconnect the line between described power port UIM1_VCC and the described external power source port V_L_16_UIM1, indicate SYNONYM at incision position simultaneously, the signal port that i.e. expression disconnects links together, and the same signal in the fracture left and right sides just can represent with two network titles.
The card clock end 1 of single SIM card seat J6202 connects the clock signal terminal UIM1_CLK of single SIM card seat J6202 among Fig. 4 by the first resistance R 0.Described the first resistance R 0 is used for regulating described clock signal terminal UIM1_CLK, when having other signals to disturb described clock signal terminal UIM1_CLK, can set a resistance to the first resistance R 0, gets final product the filtering clutter signal; When described clock signal terminal UIM1_CLK protected when fine and interference-free, its resistance can be set as to remove when 0 ohm or pcb board afterwards change plate and get final product.
Please continue to consult Fig. 3 and Fig. 5, described double-SIM card base J6201 is divided into two deck J6201(1) and J6201(2), deck J6201(1) pad comprise: card clock end C13, card reset terminal C12, card power end C11, card data terminal C17, card state end C16 and earth terminal C15.Deck J6201(2) pad comprises: card clock end C23, card reset terminal C22, card power end C21, card data terminal C27, card state end C26 and earth terminal C25.Double-SIM card base J6201 comprises first signal end group UIM1 and secondary signal end group UIM2, as shown in Figure 5, the corresponding deck J6201(1 of first signal end group UIM1), it comprises: the first clock signal terminal UIM1_CLK, the first reset signal end UIM1_RESET, the first data-signal end UIM1_DATA, the first power port UIM1_VCC.The corresponding deck J6201(2 of secondary signal end group UIM2), it comprises: second clock signal end UIM2_CLK, the second reset signal end UIM2_RESET, the second data-signal end UIM2_DATA, second source port UIM2_VCC.The card clock end C13 of described double-SIM card base J6201, C23 connects the first clock signal terminal UIM1_CLK by the second resistance R 1 with the 3rd resistance R 2 respectively, second clock signal end UIM2_CLK, the card reset terminal C12 of double-SIM card base J6201, C22 connects respectively the first reset signal end UIM1_RESET, the second reset signal end UIM2_RESET, the card data terminal C17 of double-SIM card base J6201, C27 connects respectively the first data-signal end UIM1_DATA, the second data-signal end UIM2_DATA, deck J6201(1) card power end C11 be connected state C16 and all connect the first power port UIM1_VCC, deck J6201(2) card power end C21 be connected state end C26 and all connect second source port UIM2_VCC.Deck J6201(1) and J6201(2) common pin G1, G2, G3, G4, earth terminal C15, the C25 of described double-SIM card base J6201 and pin G1, G2, the equal ground connection of G3, G4.
Wherein, double-SIM card base J6201 is double-layer SIM card seat.The effect of the first resistance R 0 among the effect of the second resistance R 1, the 3rd resistance R 2 and the single SIM card seat J6202 is identical, please refer to foregoing; The effect of SYNONYM among SYNONYM and the single SIM card seat J6202 is also identical, does not repeat them here.
In the specific implementation, single, double SIM card seat J6201, J6202 Selective Soldering paster, in circuit design, single, double SIM card seat J6201, the same signal that J6202 is corresponding, for example: the signal end group UIM1 of single SIM card seat J6202 is identical with the first signal end group UIM1 of double-SIM card base J6201, and corresponding same signal will be connected in parallel, therefore, no matter which kind of deck selection welds, and circuit can both be communicated with that SIM card seat in one of them welding and work.
Circuit according to above-mentioned principle diagram design, the pad of single SIM card seat J6202 is all covered by double-SIM card base J6201 such as card clock end 1, card reset terminal 2, the first card power end 3, card data terminal 4, the second card power end 5, earth terminal 6, the 7th pin, the 8th pin, the 9th pin and the 10th pin as can be seen from Figures 2 and 3.If select welding double-SIM card base J6201, then the capped part pad of single SIM card seat J6202 can contact with the shell (mostly being metal material) of double-SIM card base J6201, is short-circuited.For can compatible with single, double-SIM card base J6201 and such pcb board structure of designing, situation about being short-circuited is difficult to avoid, therefore, the utility model also is provided with a protected location simultaneously, solves the problem of short circuit from circuit.
Please consult simultaneously Fig. 6, in the present embodiment, described protected location is electrically connected with single SIM card seat J6202 pad and signal end group UIM1 thereof, and it comprises the first protective resistance R3, the second protective resistance R4, the 3rd protective resistance R5 and the 4th protective resistance R6; The reset signal end UIM1_RESET of described single SIM card seat connects the card reset terminal 1 of single SIM card seat pad by the first protective resistance R3; the data-signal end UIM1_DATA of described single SIM card seat connects the card data terminal 4 of single SIM card seat pad by the second protective resistance R4; the power port UIM1_VCC of described single SIM card seat connects the first card power end 3 of single SIM card seat pad by the 3rd protective resistance R5, the clock signal terminal UIM1_CLK of described single SIM card seat connects the card clock end 1 of single SIM card seat pad by the 4th protective resistance R6.Wherein, described the first protective resistance R3, the second protective resistance R4, the 3rd protective resistance R5 and the 4th protective resistance R6 are 0 Ohmic resistance; during implementation; in Fig. 2 pad schematic diagram, the first protective resistance R3, the second protective resistance R4, the 3rd protective resistance R5 and the 4th protective resistance R6 take near the signal end group UIM1 of connected single SIM card seat J6202 or pad as better embodiment.
The specific works principle of the pcb board of above-mentioned compatible with single, double-SIM card base is as follows:
When needs weld single SIM card seat J6202, because of the area of the Area Ratio double-SIM card base J6201 of single SIM card seat J6202 little, double-SIM card base J6201 pad is in the outside of the metal shell of single SIM card seat J6202, and both can not contact, and does not therefore have short circuit phenomenon and occurs.This moment welding upper the first protective resistance R3, the second protective resistance R4, the 3rd protective resistance R5 and the 4th protective resistance R6 can make single SIM card seat J6202 pad be connected with each signal among its signal end group UIM1, and single SIM card seat J6202 can work.
When needs welding double-SIM card base J6201, because of the area of the Area Ratio list SIM card seat J6202 of double-SIM card base J6201 large, single SIM card seat J6202 pad is covered by double-SIM card base J6201, then the metal shell of double-SIM card base J6201 may contact with single SIM card seat J6202 pad, is short-circuited.Be the work that signal among single SIM card seat J6202 pad and the signal end group UIM1 thereof can affect double-SIM card base J6201.This moment is the welding protection unit not, namely removes the first protective resistance R3, the second protective resistance R4, the 3rd protective resistance R5 and the 4th protective resistance R6, then can disconnect the annexation of single SIM card seat J6202 pad and its signal end group UIM1.Even the so capped pad short circuit of the metal shell of double-SIM card base J6201 and single SIM card seat J6202; namely contact with the single SIM card seat J6202 pad that disconnects through the first protective resistance R3, the second protective resistance R4, the 3rd protective resistance R5 and the 4th protective resistance R6; be equivalent to the abortive haul network without electric attribute, do not affect circuit function.
In sum, the compatible with single that the utility model provides, the pcb board of double-SIM card base, the protected location of short circuit when pcb board arranges single SIM card seat pad, double-SIM card base pad and is used for preventing the double-SIM card base welding; With two the signal end groups corresponding connection of double-SIM card base pad with double-SIM card base, with between the signal end group of single SIM card seat pad and single SIM card seat by the corresponding connection of protected location, when selecting the single SIM card seat of welding the first protective resistance in the protected location, the second protective resistance, the 3rd protective resistance and the 4th protective resistance are all welded, can be connected with the signal end group by bonding SIM card seat pad, can work; The first protective resistance, the second protective resistance, the 3rd protective resistance and the 4th protective resistance in the welding protection unit not when selecting the welding double-SIM card base; the annexation of single SIM card seat pad and its signal end group is disconnected; even the metal shell of double-SIM card base J6201 and single SIM card seat pad short circuit also can not affect the circuit function of double-SIM card base.
Be understandable that; for those of ordinary skills; can be equal to replacement or change according to the technical solution of the utility model and utility model design thereof, and all these changes or replacement all should belong to the protection range of the appended claim of the utility model.
Claims (7)
1. the pcb board of a compatible with single, double-SIM card base is characterized in that, the protected location of short circuit when described pcb board is provided with single SIM card seat pad, double-SIM card base pad and is used for preventing the double-SIM card base welding; Described protected location is electrically connected with single SIM card seat pad.
2. the pcb board of compatible with single according to claim 1, double-SIM card base is characterized in that, described single SIM card seat pad is positioned at the inside of double-SIM card base pad.
3. the pcb board of compatible with single according to claim 1, double-SIM card base is characterized in that, described single SIM card seat pad comprises: card clock end, card reset terminal, the first card power end, card data terminal, the second card power end and earth terminal; Described card clock end, card reset terminal and be connected data terminal and connect respectively clock signal terminal, reset signal end, the data-signal end of single SIM card seat; Described the first card power end be connected the card power end and all connect the power port of single SIM card seat; Described earth terminal ground connection.
4. the pcb board of compatible with single according to claim 1, double-SIM card base is characterized in that, described double-SIM card base pad comprises: card clock end, card reset terminal, card power end, card data terminal, card state end and earth terminal; Described card clock end, card reset terminal and be connected data terminal and connect respectively clock signal terminal, reset signal end, the data-signal end of double-SIM card base; Described card power end and the power port that is connected the state end and all connects double-SIM card base; Described earth terminal ground connection.
5. the pcb board of compatible with single according to claim 1, double-SIM card base is characterized in that, described double-SIM card base is double-layer SIM card seat.
6. the pcb board of compatible with single according to claim 3, double-SIM card base is characterized in that, described protected location comprises the first protective resistance, the second protective resistance, the 3rd protective resistance and the 4th protective resistance; The reset signal end of described single SIM card seat connects the card reset terminal of single SIM card seat pad by the first protective resistance; the data-signal end of described single SIM card seat connects the card data terminal of single SIM card seat pad by the second protective resistance; the power port of described single SIM card seat connects the first card power end of single SIM card seat pad by the 3rd protective resistance, the clock signal terminal of described single SIM card seat connects the card clock end of single SIM card seat pad by the 4th protective resistance.
7. the pcb board of compatible with single according to claim 6, double-SIM card base is characterized in that, described the first protective resistance, the second protective resistance, the 3rd protective resistance and the 4th protective resistance are 0 Ohmic resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400979 CN202750337U (en) | 2012-08-14 | 2012-08-14 | PCB (printed circuit board) with compatible single SIM (subscriber identity module) card base and dual SIM card base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400979 CN202750337U (en) | 2012-08-14 | 2012-08-14 | PCB (printed circuit board) with compatible single SIM (subscriber identity module) card base and dual SIM card base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202750337U true CN202750337U (en) | 2013-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220400979 Expired - Fee Related CN202750337U (en) | 2012-08-14 | 2012-08-14 | PCB (printed circuit board) with compatible single SIM (subscriber identity module) card base and dual SIM card base |
Country Status (1)
| Country | Link |
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| CN (1) | CN202750337U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107294558A (en) * | 2016-04-05 | 2017-10-24 | 宇龙计算机通信科技(深圳)有限公司 | A kind of radio circuit transmitting-receiving structure and its design method |
-
2012
- 2012-08-14 CN CN 201220400979 patent/CN202750337U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107294558A (en) * | 2016-04-05 | 2017-10-24 | 宇龙计算机通信科技(深圳)有限公司 | A kind of radio circuit transmitting-receiving structure and its design method |
| CN107294558B (en) * | 2016-04-05 | 2019-08-02 | 宇龙计算机通信科技(深圳)有限公司 | A kind of radio circuit transmitting-receiving structure and its design method |
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| 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: 20130220 Termination date: 20150814 |
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| EXPY | Termination of patent right or utility model |