CN201323702Y - Zero-resistance replacement circuit and mobile terminal utilizing same - Google Patents
Zero-resistance replacement circuit and mobile terminal utilizing same Download PDFInfo
- Publication number
- CN201323702Y CN201323702Y CNU2008202242486U CN200820224248U CN201323702Y CN 201323702 Y CN201323702 Y CN 201323702Y CN U2008202242486 U CNU2008202242486 U CN U2008202242486U CN 200820224248 U CN200820224248 U CN 200820224248U CN 201323702 Y CN201323702 Y CN 201323702Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- welding
- zero
- pad
- resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Electric Connection Of Electric Components To Printed Circuits (AREA)
Abstract
The utility model discloses a zero-resistance replacement circuit, which comprises two break points of a circuit to be joined, wherein, a welding disc is respectively arranged on the two break points, and a distance is maintained between the two welding discs. Two welding discs are utilized to substitute the original zero resistance, so that the occupation space is greatly reduced, and the position layout is more flexible; moreover, when requiring connection and disconnection for multiple times during the commissioning process, the welding is simpler and more convenient than the welding of the zero resistance; in addition, the quantity of the welding points in the production process also can be reduced, thereby further reducing the welding cost. The utility model also provides a mobile terminal with the zero-resistance replacement circuit.
Description
Technical field
The utility model relates to circuit field, relates in particular to a kind of zero resistance replacement circuit and uses the portable terminal of this circuit.
Background technology
In order debugging, usually will to go here and there zero resistance on the holding wire during mobile phone pcb board design at present, to realize break-make or test point function to hardware circuit.
It is big that null value resistance takies the PCB space, especially taken height space, because mobile phone need be realized ultra-thin short and small profile now, makes the position of too much zero resistance be subjected to increasing restriction.
And, in debug process, when needs with the signal break-make time welding zero resistance comparatively difficulty that just becomes repeatedly.In addition, null value resistance does not have special circuit implication in circuit, is taking unnecessary cost in the low-cost design at present, has increased welding yet and has counted and welding cost.
The utility model content
Technical problem to be solved in the utility model is, a kind of less zero resistance replacement scheme in pcb board space that takies is provided.
In order to solve the problems of the technologies described above, the utility model proposes a kind of zero resistance replacement circuit, comprise two breakpoints of circuit to be connected, and on these two breakpoints, pad is set respectively, keep at interval between described two pads.
Wherein, an end of described pad is arcuation.
Wherein, the arc radius of the arcuation end of described pad is 0.25mm.
In addition, the interval between the described pad is between 0.1mm to 0.2mm.
Preferably, be spaced apart 0.15mm between the described pad.
On the other hand, in order to solve the problems of the technologies described above, the utility model also proposes a kind of portable terminal with zero resistance replacement circuit, comprise shell, and be arranged at circuit board in the described shell, described circuit board comprises two breakpoints of circuit to be connected, and on these two breakpoints pad is set respectively, keeps at interval between described two pads.
Wherein, an end of described pad is arcuation.
Wherein, the arc radius of the arcuation end of described pad is 0.25mm.
In addition, the interval between the described pad is between 0.1mm to 0.2mm.
Preferably, be spaced apart 0.15mm between the described pad.
Owing to replaced original zero resistance, make taking greatly of its space reduce, thereby the layout of position is also more flexible in the utility model by two pads; And, owing to can directly between two pads, be coated with scolding tin in process of production, thereby when in debug process, needing repeatedly break-make, only need unsolder or weld described scolding tin, so its welding is also simple and convenient than the welding of zero resistance, also can reduce the quantity of pad, thereby also further reduce welding cost.
Description of drawings
Fig. 1 is the circuit that comprises zero resistance in the prior art;
Fig. 2 is the structural representation of zero resistance embodiment described in the alternate figures 1 in the utility model;
Fig. 3 is the structural representation of an embodiment of pcb board of using the portable terminal of zero resistance and the utility model scheme.
Embodiment
With reference to figure 1, illustrate the circuit that comprises zero resistance in the prior art.As shown in the figure, in the prior art, be provided with zero resistance between two breakpoint A of connection line and the B, the two ends of this zero resistance are welded on described two terminal A and B respectively.
The utility model is elaborated below in conjunction with accompanying drawing.
With reference to figure 2, the structural representation of an embodiment of zero resistance described in the alternate figures 1 in diagram the utility model.As shown in the figure, two breakpoint A ' of connection line and B ', it is circular-arc pad 22 that described two breakpoint A ' are connected an end respectively with B ', the opposite end of described two pads 22 then is not circular-arc, as shown in FIG., can be linear pattern.
Wherein, keep at interval between described two pads 22.When the described breakpoint A ' of design was connected with B ', then the correspondence position brushing solder(ing) paste on the solder printing web plate treated that according to the flowability of scolding tin, two pads 22 that described breakpoint A ' is connected with B ' couple together through after refluxing.When not needing to connect, then do not need to brush solder(ing) paste.
A linear end of described pad 22 is the opposite end.
Wherein, the arc radius of the arc end of described pad 22 0.25mm preferably; Being spaced apart between the 01mm to 0.2mm between the described pad 22, preferably 0.15mm.
Because an end of described pad 22 adopts the arcuation design, thereby in backflow, the circulation of scolding tin is better.And as described arc radius 0.25mm preferably, between the described pad 22 be spaced apart 0.15mm the time, can make that the circulation of described scolding tin is better, and make distribute more even.
Need to prove that described pad 22 is not limited to the shape shown in Fig. 2, broken line or camber line design etc. can also be adopted in its opposite end.
With reference to figure 3, illustrate Fig. 3 and be the structural representation of an embodiment of the pcb board of the portable terminal of using zero resistance and the utility model scheme.As shown in the figure, as can be seen, be provided with the pad 32 and the LCD display of replacement scheme in zero resistance 31, the utility model on the pcb board 30.The height of wherein said zero resistance 31 is 0.4mm, and the height of pad 32 is almost 0, thereby can clearly find out, adopts the replacement scheme described in the utility model can reduce taking height space greatly, save the space, thereby the position of placing is free more.Described portable terminal also comprises the shell that holds described pcb board, owing to be conventional design, does not describe at this.
And,, be coated with scolding tin between the pad, thereby when debugging repeatedly break-make, just can realize by electric iron easily owing to adopted the design of pad; And reliability also is improved, and needn't worry whether zero resistance welding in the past exists the problem of rosin joint.
Above disclosed only is a kind of preferred embodiment of the utility model, can not limit the interest field of the utility model certainly with this, and therefore the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.
Claims (10)
1, a kind of zero resistance replacement circuit is characterized in that, comprises two breakpoints of circuit to be connected, and on these two breakpoints pad is set respectively, keeps at interval between described two pads.
2, circuit according to claim 1 is characterized in that, an end of described pad is arcuation.
3, circuit according to claim 2 is characterized in that, the arc radius of the arcuation end of described pad is 0.25mm.
4, according to each described circuit in the claim 1 to 3, it is characterized in that the interval between the described pad is between 0.1mm to 0.2mm.
5, circuit according to claim 4 is characterized in that, is spaced apart 0.15mm between the described pad.
6, a kind of portable terminal with zero resistance replacement circuit comprises shell, and is arranged at the circuit board in the described shell, it is characterized in that, described circuit board comprises two breakpoints of circuit to be connected, and on these two breakpoints pad is set respectively, keeps at interval between described two pads.
7, portable terminal according to claim 6 is characterized in that, an end of described pad is arcuation.
8, portable terminal according to claim 7 is characterized in that, the arc radius of the arcuation end of described pad is 0.25mm.
9, according to each described portable terminal in the claim 6 to 8, it is characterized in that the interval between the described pad is between 0.1mm to 0.2mm.
10, portable terminal according to claim 9 is characterized in that, is spaced apart 0.15mm between the described pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202242486U CN201323702Y (en) | 2008-11-21 | 2008-11-21 | Zero-resistance replacement circuit and mobile terminal utilizing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202242486U CN201323702Y (en) | 2008-11-21 | 2008-11-21 | Zero-resistance replacement circuit and mobile terminal utilizing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201323702Y true CN201323702Y (en) | 2009-10-07 |
Family
ID=41161073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202242486U Expired - Fee Related CN201323702Y (en) | 2008-11-21 | 2008-11-21 | Zero-resistance replacement circuit and mobile terminal utilizing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201323702Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103281144A (en) * | 2013-06-03 | 2013-09-04 | 深圳市双赢伟业科技股份有限公司 | Method for testing wireless performance of wireless product |
| CN107015494A (en) * | 2016-01-27 | 2017-08-04 | 上海和辉光电有限公司 | Plurality of voltages source circuit |
-
2008
- 2008-11-21 CN CNU2008202242486U patent/CN201323702Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103281144A (en) * | 2013-06-03 | 2013-09-04 | 深圳市双赢伟业科技股份有限公司 | Method for testing wireless performance of wireless product |
| CN107015494A (en) * | 2016-01-27 | 2017-08-04 | 上海和辉光电有限公司 | Plurality of voltages source circuit |
| CN107015494B (en) * | 2016-01-27 | 2020-10-16 | 上海和辉光电有限公司 | Multi-path voltage source circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201323702Y (en) | Zero-resistance replacement circuit and mobile terminal utilizing same | |
| CN203352944U (en) | PCB with stamp holes | |
| CN101728591B (en) | Contact hardware of charger and rechargeable battery, and installation process thereof | |
| CN202888569U (en) | Mobile device adapter | |
| CN202042633U (en) | Conductive terminal | |
| CN2932686Y (en) | Electric connector terminal | |
| CN205081164U (en) | Positive negative pole is with soft packet of cylinder battery and battery terminal of end | |
| CN101085566A (en) | Novel leaking net plate | |
| CN201418210Y (en) | Connection structure between circuit board and wires welded on the circuit board | |
| CN201278391Y (en) | Conductive terminal and battery connector for arranging the conductive terminal | |
| CN204795843U (en) | Anti -drop circuit board | |
| CN212013177U (en) | Printed circuit board structure | |
| CN206370522U (en) | Terminal of power connector | |
| CN201590505U (en) | Wiring terminal of coil panel | |
| CN201349212Y (en) | Moving terminal | |
| CN203351916U (en) | Interface converting device capable of supporting free connection of LCD multi-stitch | |
| CN208666387U (en) | The pcb board double-side-turning device being connect with cable | |
| CN210608635U (en) | Novel charger structure | |
| CN204793487U (en) | USB connects and USB device | |
| CN201041961Y (en) | A lead tin free welding motor | |
| CN201789093U (en) | Connection mechanism for connection terminals and printed circuit board | |
| CN207233974U (en) | PCB current signal terminal structures | |
| CN206992341U (en) | Direct current charging connector female seat | |
| CN211930972U (en) | Circuit board mechanism | |
| CN207474890U (en) | A kind of battery terminal weld fixture apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091007 Termination date: 20111121 |