CN202026529U - Printed circuit board - Google Patents

Printed circuit board Download PDF

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Publication number
CN202026529U
CN202026529U CN 201120087980 CN201120087980U CN202026529U CN 202026529 U CN202026529 U CN 202026529U CN 201120087980 CN201120087980 CN 201120087980 CN 201120087980 U CN201120087980 U CN 201120087980U CN 202026529 U CN202026529 U CN 202026529U
Authority
CN
China
Prior art keywords
pad
pcb
circuit board
printed circuit
electronic devices
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 - Lifetime
Application number
CN 201120087980
Other languages
Chinese (zh)
Inventor
金磊
张益�
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOE Technology Group Co Ltd
Hefei BOE Optoelectronics Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Hefei BOE Optoelectronics Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BOE Technology Group Co Ltd, Hefei BOE Optoelectronics Technology Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to CN 201120087980 priority Critical patent/CN202026529U/en
Application granted granted Critical
Publication of CN202026529U publication Critical patent/CN202026529U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a printed circuit board, comprising at least one set of wiped joints, with each set of wiped joints consisting of a first wiped joint and a second wiped joint, wherein the first wiped joint is arranged upon the front side of the printed circuit board while the second wiped joint is arranged upon the back side of the printed circuit board; moreover, the position of the first wiped joint in each set upon the front side of the printed circuit board is corresponded to the position of the second wiped point upon the back side of the printed circuit board; and the first wiped joint and the second wiped joint are electrically connected together via a through hole. With the printed circuit board of the utility model, the shedding of the wiped joints of electronic components can be effectively avoided.

Description

A kind of printed circuit board (PCB)
Technical field
The utility model relates to technical field of electronic devices, is meant a kind of printed circuit board (PCB) (PCB, Printed Circuit Board) especially.
Background technology
PCB is the vitals of electronic product, is used widely in technical field of electronic devices.Yet, at present PCB go up electronic devices and components pad through regular meeting owing to the effect of external force comes off, and then cause the electronic devices and components perk, as shown in Figure 1, pad 3 corresponding welding on the pad 1 of the connector on the PCB 9 (Connector) 10 and the PCB 9, the pad 4 corresponding welding on the pad 2 of connector 10 and the PCB 9; Because connector 10 is subjected to the external force effect shown in the direction of arrow, its pad 1 and 2 is subjected to coming off behind the bigger pulling force, causes connector 10 perks thus.
After the connector perk, when product is keeped in repair, usually need to change 1 screening cover (ShieldCover), 1 PCB and 6 thin film chips (COF, Chip On Film), visible maintenance cost is higher; And when changing PCB, also need clear up residual anisotropic conductive film (ACF, AnisotropicConductive Film), thus, changing a PCB approximately needs 10 minutes, consuming time longer.
In actual applications, the incidence of electronic devices and components perk is high, this shows, after a large amount of electronic devices and components perks, when product was keeped in repair, cost was higher and consuming time longer.
The utility model content
In view of this, main purpose of the present utility model is to provide a kind of printed circuit board (PCB), can prevent effectively that the pad of electronic devices and components from coming off.
For achieving the above object, the technical solution of the utility model is achieved in that
The utility model provides a kind of printed circuit board (PCB), comprising: at least one assembly welding contact, and every assembly welding contact comprises first pad and second pad;
Described first pad is positioned at the front of printed circuit board (PCB), described second pad is positioned at the back side of printed circuit board (PCB), and described first pad in every assembly welding contact is positioned at the position in printed circuit board (PCB) front, the position that is positioned at the printed circuit board (PCB) back side with described second pad is corresponding;
Described first pad and second pad are electrically connected by via hole.
Wherein, described pad is SMD pad.
The shape size of described first pad and second pad is identical.
Via hole between described first pad and second pad is at least one.
Described via hole is a cylindricality.
Described via hole is covered fully by described SMD pad.
Filler in the described via hole is a metal.
Described printed circuit board (PCB) also comprises electronic devices and components, the pad of described electronic devices and components and the corresponding welding of described first pad.
Described electronic devices and components are connector.
A kind of PCB provided by the utility model, the position of corresponding first pad in its back side has increased second pad newly; First pad and second pad are realized being electrically connected by via hole, so, with the pad of electronic devices and components the time with the corresponding welding of first pad, also realized the corresponding welding of pad of electronic devices and components with second pad, like this, the pad of electronic devices and components can bear bigger external force, can prevent the coming off of pad of electronic devices and components effectively, and then avoid the perk of electronic devices and components.
Description of drawings
Fig. 1 is the pad schematic diagram on the existing PCB;
Fig. 2 is a PCB cross-sectional view of the present utility model;
Fig. 3 is a PCB vertical view of the present utility model.
Embodiment
Since the pad that existing PCB goes up electronic devices and components through regular meeting owing to the effect of external force comes off; and then cause the electronic devices and components perk; therefore; the utility model considers to change the weld locations that PCB goes up electronic devices and components; increase the pad of a correspondence at the PCB back side; two pads are electrically connected by via hole, to increase the force intensity that is subjected to of pad, reach the purpose that prevents perk.
Be illustrated in figure 2 as PCB cross-sectional view of the present utility model, Figure 3 shows that PCB vertical view of the present utility model.PCB of the present utility model comprises at least one assembly welding contact, and every assembly welding contact comprises first pad and second pad; Wherein, second pad is the pad at the PCB back side newly-increased in the utility model.
First pad is positioned at the front of PCB, and second pad is positioned at the back side of PCB, and first pad in every assembly welding contact be positioned at the PCB front the position, to be positioned at the position at the PCB back side corresponding with second pad.
As shown in Figure 2, pad 3 and pad 5 are an assembly welding contact, and wherein, pad 3 is the front that first pad is positioned at PCB 9; Pad 5 is the back side that second pad is positioned at PCB 9; Pad 3 is corresponding with the position of pad 5 on PCB 9.
Pad 4 and pad 6 are an assembly welding contact, and wherein, pad 4 is the front that first pad is positioned at PCB9; Pad 6 is the back side that second pad is positioned at PCB 9; Pad 4 is corresponding with the position of pad 6 on PCB 9.
First pad described in the utility model and second pad all are SMD pad, and the shape size is identical.
In order to realize the electrical connection of first pad and second pad, newly-increased at least one via hole on the PCB between first pad and second pad as Fig. 2, shown in Figure 3, increases a via hole 7 newly between pad 3 and pad 5; Newly-increased via hole 8 between pad 4 and pad 6.
When realizing the electrical connection of first pad and second pad by via hole, via hole includes metal charge, and metal charge can be a copper wire etc.
As Fig. 2, shown in Figure 3, above-mentioned via hole is a cylindricality, for example cylindrical etc., and all via holes need cover fully by SMD pad, can not exceed the coverage of SMD pad.
Based on above-mentioned PCB structure, with the corresponding welding of pad of the electronic devices and components on the PCB with first pad.As Fig. 2, shown in Figure 3, the electronic devices and components of employing are connector (Connector) 10, with the pad 1 of connector 10 and the corresponding welding of the pad 3 of PCB 9 (first pad); With the pad 2 of connector 10 and the corresponding welding of the pad 4 of PCB 9 (first pad).Because pad 3 and pad 5 have been realized electrical connection by via hole, then the pad 5 of the pad 1 of connector 10 and PCB 9 (second pad) has just been realized electrical connection; In like manner, the pad 2 of connector 10 and the pad 6 of PCB 9 (second pad) have also been realized electrical connection, and so, the pad 1 and the pad 2 of connector 10 can bear bigger pulling force, can prevent coming off of pad 1 and pad 2 effectively, and then avoid the perk of connector 10.
The above is preferred embodiment of the present utility model only, is not to be used to limit protection range of the present utility model.

Claims (9)

1. a printed circuit board (PCB) is characterized in that, comprising: at least one assembly welding contact, and every assembly welding contact comprises first pad and second pad;
Described first pad is positioned at the front of printed circuit board (PCB), described second pad is positioned at the back side of printed circuit board (PCB), and described first pad in every assembly welding contact is positioned at the position in printed circuit board (PCB) front, the position that is positioned at the printed circuit board (PCB) back side with described second pad is corresponding;
Described first pad and second pad are electrically connected by via hole.
2. according to the described printed circuit board (PCB) of claim 1, it is characterized in that described pad is SMD pad.
3. according to the described printed circuit board (PCB) of claim 2, it is characterized in that the shape size of described first pad and second pad is identical.
4. according to the described printed circuit board (PCB) of claim 2, it is characterized in that the via hole between described first pad and second pad is at least one.
5. according to the described printed circuit board (PCB) of claim 4, it is characterized in that described via hole is a cylindricality.
6. according to claim 4 or 5 described printed circuit board (PCB)s, it is characterized in that described via hole is covered fully by described SMD pad.
7. according to claim 4 or 5 described printed circuit board (PCB)s, it is characterized in that the filler in the described via hole is a metal.
8. according to the described printed circuit board (PCB) of claim 2, it is characterized in that described printed circuit board (PCB) also comprises electronic devices and components, the pad of described electronic devices and components and the corresponding welding of described first pad.
9. described according to Claim 8 printed circuit board (PCB) is characterized in that described electronic devices and components are connector.
CN 201120087980 2011-03-29 2011-03-29 Printed circuit board Expired - Lifetime CN202026529U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201120087980 CN202026529U (en) 2011-03-29 2011-03-29 Printed circuit board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120087980 CN202026529U (en) 2011-03-29 2011-03-29 Printed circuit board

Publications (1)

Publication Number Publication Date
CN202026529U true CN202026529U (en) 2011-11-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201120087980 Expired - Lifetime CN202026529U (en) 2011-03-29 2011-03-29 Printed circuit board

Country Status (1)

Country Link
CN (1) CN202026529U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104994680A (en) * 2015-07-02 2015-10-21 常州鼎润电子科技有限公司 Anti-disengagement circuit board
CN110337177A (en) * 2019-06-21 2019-10-15 广州金鹏源康精密电路股份有限公司 It is a kind of with the circuit board of pad and preparation method thereof that can bear high thrust

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104994680A (en) * 2015-07-02 2015-10-21 常州鼎润电子科技有限公司 Anti-disengagement circuit board
CN104994680B (en) * 2015-07-02 2019-01-08 常州纳捷机电科技有限公司 Anti-dropout circuit board
CN110337177A (en) * 2019-06-21 2019-10-15 广州金鹏源康精密电路股份有限公司 It is a kind of with the circuit board of pad and preparation method thereof that can bear high thrust

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C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20111102