CN204442832U - A kind of pad structure - Google Patents
A kind of pad structure Download PDFInfo
- Publication number
- CN204442832U CN204442832U CN201520130914.XU CN201520130914U CN204442832U CN 204442832 U CN204442832 U CN 204442832U CN 201520130914 U CN201520130914 U CN 201520130914U CN 204442832 U CN204442832 U CN 204442832U
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- Prior art keywords
- pad
- pad structure
- motor
- pads
- utility
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Abstract
The utility model relates to handset structure technical field, discloses a kind of pad structure, and described pad structure is made up of the pad of two parallel placements, and is filled with dielectric between two pads.The utility model execution mode in terms of existing technologies, be provided with the pad of two parallel placements, and dielectric is filled between the pad of two parallel placements, thus make two pads form the effect of capacity plate antenna, filter action is formed to the disturbing pulse produced during devices function.This way is equivalent to the position of filter in prior art to move to the device (as motor or loudspeaker) of work from mainboard, thus further enhancing filter effect, solve better because of devices function to the radio frequency interference problem that antenna causes.
Description
Technical field
The utility model relates to handset structure technical field, particularly a kind of pad structure.
Background technology
Along with popularizing of communication terminal, the scope of application of the mobile terminals such as mobile phone in people's life is more and more extensive, and for meeting the demand of users, operator constantly proposes new requirement to the environmental suitability of mobile phone.The vibration function of mobile phone be mobile phone in harsh and unforgiving environments, especially requisite using function in noisy environment, therefore the vibration function of mobile phone is also more and more paid close attention to by people.The vibrations of mobile phone, be by mobile phone inside a vibrations motor when obtain power supply, run up under the effect of electromagnetic field and produce.
At present, widely used in communication terminal is the motor of bonding wire form, be welded on cell phone mainboard by motor by bonding wire, during motor operations, electric current is had to pass through in the wire be connected between motor with cell phone mainboard and the coil of motor internal, now, this wire and coil can outside radiated interference pulses, high-frequency signal in disturbing pulse can cause radio frequency interference problem to antenna, and the sensitivity finally causing antenna to receive declines, and affects the normal use of mobile phone.
In prior art, in order to solve because of motor vibration to the radio frequency interference problem that antenna causes, general meeting installs filter on cell phone mainboard, but on cell phone mainboard, filter is installed, interference signal still can be radiate by lead-in wire or device body, has a strong impact on the filter effect of filter.
Utility model content
The purpose of this utility model is to provide a kind of pad structure, solves Yin Mada or loudspeaker work better and the radio frequency interference problem that causes to antenna, promotes handset capability further.
For solving the problems of the technologies described above, execution mode of the present utility model provides a kind of pad structure, and described pad structure is made up of the pad of two parallel placements, and is provided with dielectric between two pads.
The utility model execution mode in terms of existing technologies, be provided with the pad of two parallel placements, and dielectric is filled between the pad of two parallel placements, thus make two pad self-assembling formation capacity plate antenna effects, filter action is formed to the disturbing pulse produced when motor or loudspeaker work.This way is equivalent to the position of filter in prior art to move to the device (as motor or loudspeaker) itself worked from mainboard, thus further enhancing filter effect, solve Yin Mada or loudspeaker work better and the radio frequency interference problem caused to antenna.
Further, described pad is flexible PCB (Flexible Printed Circuit is called for short " FPC ").The dielectric constant of FPC is large, good insulation preformance, is conducive to the capacity plate antenna effect that guarantee two pads are formed.
Further, the printing board PCB superposition composition that each pad is connected by 2 layers, and between two pads, be filled with the dielectric of high-k.This way makes the gross thickness of PCB comparatively large, and inner 2 lamellar spacings are very little, are namely conducive to the capacity plate antenna effect between guarantee two pads, are also conducive to the hardness and the intensity that ensure whole pad structure.
Further, the distance between two pads is less than or equal to 0.2mm.Distance between two pads is less, and more can ensure that the electric capacity of the formation between two pads is larger, filter effect is better.
Further, the distance between described two pads is 0.1mm.
Further, the area of described pad is more than or equal to 16mm
2.The area of pad is larger, and more can ensure that the electric capacity of the formation between two pads is larger, filter effect is better.
Further, the pad of described two parallel placements is upper and lower parallel placement.
Further, described pad structure is the pad structure of motor or loudspeaker.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of pad structure according to the utility model first execution mode;
Fig. 2 is not intended to according to the structure of a kind of motor of the utility model first execution mode;
Fig. 3 is the syndeton schematic diagram of motor according to the utility model first execution mode and mainboard.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, each execution mode of the present utility model is explained in detail.But, persons of ordinary skill in the art may appreciate that in each execution mode of the utility model, proposing many ins and outs to make reader understand the application better.But, even without these ins and outs with based on the many variations of following execution mode and amendment, each claim of the application technical scheme required for protection also can be realized.
First execution mode of the present utility model relates to a kind of pad structure.As shown in Figure 1, this pad structure is made up of the pad 3 of two parallel placements, and is filled with dielectric between two pads 3.
The pad structure being motor for this pad structure as the pad structure of motor or loudspeaker etc., can explain this pad structure by pad structure below that provide in present embodiment.
As shown in Figure 2, this motor comprises: motor body 1 and the welding disk 2 (pad structure in this welding disk 2 is the pad structure that present embodiment provides) be located on motor body 1; Welding disk 2 is connected with the coil (not shown) of motor body 1 inside.
Specifically, in the present embodiment, pad 3 is made up of the flexible PCB FPC of high-k ε, and the upper and lower parallel placement of two FPC (i.e. two pads 3), dielectric (being also dielectric) is filled with between two FPC, thus make two FPC form the effect of capacity plate antenna, filter action is formed to the disturbing pulse produced during motor vibration.
Meanwhile, from capacity plate antenna formula: C=ε S/4 π kd, the electric capacity C formed between two FPC is directly proportional to the area S of DIELECTRIC CONSTANT ε and FPC, and the distance d between two FPC is inversely proportional to, and wherein, k is electrostatic force constant; And by the size of electric capacity C and the relation (wherein, the size of electric capacity C and the relation of filter effect have been common practise, and present embodiment repeats no more) of filter effect known, the electric capacity C formed between two FPC is larger, and its filter effect is better.Therefore, in order to ensure the filter effect of the capacity plate antenna formed between two FPC further, in present embodiment, the area of FPC is more than or equal to 16mm
2; And the distance between two FPC is less than or equal to 0.2mm.
It is worth mentioning that, present embodiment is more than or equal to 16mm with the area of FPC
2for example is described, but in actual applications, the area of FPC and the concrete structure of vibrations object (as motor or loudspeaker), need the frequency of filtering etc. all relevant.
In addition, motor described in present embodiment is that mobile terminal is (as mobile phone, panel computer etc.) motor, in actual applications, the both positive and negative polarity of motor to be welded on respectively on two FPC by the coil (not shown) of motor body 1 inside that (namely FPC is used for the positive pole of connecting motor, another FPC is used for the negative pole of connecting motor), can (as shown in Figure 3, wherein 6 be welding position on mainboard) on the mainboard 5 again wire 4 that each FPC draws being welded on mobile terminal (as mobile phone).
Second execution mode of the present utility model relates to a kind of pad structure.Second execution mode is the further improvement done on the basis of the first execution mode, and its improvements are: in the first embodiment, and the distance just between proposition two FPC is less than or equal to 0.2mm; But the distance between two FPC is not specifically limited; And in the utility model second execution mode, further restriction has been done to the distance between two FPC, the distance limited between two FPC is 0.1mm, thus adds the operability of present embodiment.
3rd execution mode of the present utility model relates to a kind of pad structure.3rd execution mode is roughly the same with the second execution mode, and its main distinction part is: in this second embodiment, and pad 3 is made up of the flexible PCB FPC of high-k; And in the present embodiment, the printing board PCB superposition composition that each pad 3 is connected by 2 layers, and between two pads 3, be filled with the dielectric of high-k.
That is, in the present embodiment, welding disk 2 is made up of 4 layers of PCB, and outermost PCB is connected with adjacent internal layer PCB respectively, the dielectric of high-k is filled with between the PCB of two internal layers, thus make 4 layers of PCB reach the effect of capacity plate antenna, filter action is formed to the disturbing pulse produced during motor vibration.
In addition, it is worth mentioning that, in order to ensure that the capacity plate antenna formed between two pads 3 is to the filter effect of the disturbing pulse produced during motor vibration, the distance between the PCB of two internal layers is defined as 0.1mm by present embodiment.
In actual applications, the both positive and negative polarity of motor is welded on (i.e. outermost two PCB on outermost two PCB by coil by motor body 1 inside respectively, a positive pole for connecting motor, another is for the negative pole of connecting motor), then the wire 4 that each pad 3 is drawn is welded on the mainboard 5 of mobile terminal (as mobile phone).
Persons of ordinary skill in the art may appreciate that the respective embodiments described above realize specific embodiment of the utility model, and in actual applications, various change can be done to it in the form and details, and do not depart from spirit and scope of the present utility model.
Claims (8)
1. a pad structure, is characterized in that, described pad structure is made up of the pad of two parallel placements, and is filled with dielectric between two pads.
2. pad structure according to claim 1, is characterized in that, described pad is flexible PCB FPC.
3. pad structure according to claim 1, is characterized in that, the printing board PCB superposition composition that each pad is connected by 2 layers, and is filled with the dielectric of high-k between two pads.
4. pad structure according to any one of claim 1 to 3, is characterized in that, the distance between two pads is less than or equal to 0.2mm.
5. pad structure according to claim 4, is characterized in that, the distance between described two pads is 0.1mm.
6. pad structure according to claim 1, is characterized in that, the area of described pad is more than or equal to 16mm
2.
7. pad structure according to claim 1, is characterized in that, the pad of described two parallel placements is upper and lower parallel placement.
8. pad structure according to claim 1, is characterized in that, described pad structure is the pad structure of motor or loudspeaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520130914.XU CN204442832U (en) | 2015-03-06 | 2015-03-06 | A kind of pad structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520130914.XU CN204442832U (en) | 2015-03-06 | 2015-03-06 | A kind of pad structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204442832U true CN204442832U (en) | 2015-07-01 |
Family
ID=53610640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520130914.XU Expired - Fee Related CN204442832U (en) | 2015-03-06 | 2015-03-06 | A kind of pad structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204442832U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106028623A (en) * | 2016-06-24 | 2016-10-12 | 联想(北京)有限公司 | Flat motor and electronic equipment |
| CN114286504A (en) * | 2021-12-30 | 2022-04-05 | 四川华拓光通信股份有限公司 | FPC with capacitor bonding pad and preparation method thereof |
-
2015
- 2015-03-06 CN CN201520130914.XU patent/CN204442832U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106028623A (en) * | 2016-06-24 | 2016-10-12 | 联想(北京)有限公司 | Flat motor and electronic equipment |
| CN106028623B (en) * | 2016-06-24 | 2020-10-27 | 联想(北京)有限公司 | Flat motor and electronic equipment |
| CN114286504A (en) * | 2021-12-30 | 2022-04-05 | 四川华拓光通信股份有限公司 | FPC with capacitor bonding pad and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20200306 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |