CN203279345U - Bonding pad and PCB board - Google Patents
Bonding pad and PCB board Download PDFInfo
- Publication number
- CN203279345U CN203279345U CN 201320260946 CN201320260946U CN203279345U CN 203279345 U CN203279345 U CN 203279345U CN 201320260946 CN201320260946 CN 201320260946 CN 201320260946 U CN201320260946 U CN 201320260946U CN 203279345 U CN203279345 U CN 203279345U
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- China
- Prior art keywords
- pad structure
- pad
- bonding pad
- bonding
- pcb board
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- 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
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- Electric Connection Of Electric Components To Printed Circuits (AREA)
- Structures For Mounting Electric Components On Printed Circuit Boards (AREA)
Abstract
The utility model discloses a bonding pad and a PCB board. The bonding pad comprises a first bonding pad structure, a second bonding pad structure, and an installing hole; the first bonding pad structure and the second bonding structure are superposed at the same plane by forming a preset angle not less than 15 degrees; and the installing holes are arranged at one side where the first bonding pad structure and the second bonding structure are superposed. Edges of one sides where the first bonding pad structure and the second bonding structure are not superposed are connected with a tangent line; and an area that is formed by encircling of the tangent line, the first bonding pad structure and the second bonding structure form a third bonding pad structure. According to the bonding pad provided by the utility model, because the first bonding pad structure and the second bonding structure are superposed and the third bonding pad structure is formed and arranged, pins of components that are processed by pin bending of machine plugging equipment are completely covered in the whole bonding pad, so that a phenomenon that the line is in a short circuit state because a factor that the bent pin length of a component pin processed by and plugging and moulding of machine plugging equipment exceeds the edge of the bonding pad is not considered can be avoided, thereby effectively eliminating the hidden trouble of the short-circuit phenomenon of the PCB board.
Description
Technical field
The utility model relates to the technical field of pcb board design, relates in particular to a kind of pad and pcb board.
Background technology
In the assembling of electronic product, with automatic insertion equipment plug-in mounting electronic devices and components, can improve device plug-in mounting efficient in large batch of production.
As shown in Figure 1 to Figure 3, usually use staff at the components and parts 20 of pcb board 10 plug-in mountings, the installation foot 50 of components and parts 20 is at PCB(Printed Circuit Board, printed circuit board) plate back welding junction 30 is plumbness, as Fig. 1 (a) with (b).But, during by the automatic placing components 20 of plug-in component equipment, machine transplanting of rice equipment can carry out the clubfoot processing in pcb board back welding junction 30 by automatic installation foot 50 with components and parts 20, components and parts 20 installation feet 50 after the clubfoot moulding have certain length and form 0 to 15 angle of spending with pcb board back welding junction 30, as Fig. 1 (c) with (d), wherein mode shown in Fig. 1 (c) is the outside moulding of installation foot 50, and mode shown in Fig. 1 (d) is the inside moulding of installation foot 50.
Carry out above-mentioned clubfoot processing if reckon without machine transplanting of rice equipment installation foot 50 to components and parts 20 when placing components 20 during design, do not do and keep away the position processing, the installation foot 50 of the components and parts 20 after clubfoot is processed can be taken to encounter with this installation foot 50 and close on, on the PCB copper sheet without annexation, causes line short.
At present, there are two kinds of components and parts 20 installation foot 50 molding modes in the machine transplanting of rice equipment that is used for plug-in mounting electronic devices and components 20: yi word pattern and N font, and as Fig. 2 (a) with (b), wherein shown in Fig. 2 (a), mode is yi word pattern, shown in Fig. 2 (b), mode is the N font.
In prior art, conventional pad 60 has circle, square and kidney-shaped, as shown in Figure 3, no matter use above-mentioned which kind of pad 60, components and parts 20 installing holes 40 all design the center at pad 60, when above-mentioned situation exceeds pad 60 edge when the clubfoot length of components and parts 20 installation feet 50, will connect on copper sheet circuit aside, cause line short.
The utility model content
Main purpose of the present utility model is to propose a kind of pad and pcb board, and the different component's feet molding modes that form when being intended to adapt to dissimilar machine transplanting of rice equipment placing components improve the line short hidden danger of pcb board effectively.
In order to achieve the above object, the utility model proposes a kind of pad, this pad comprises for the first pad structure of welding component and the second pad structure, and the installing hole that is used for the pin insertion of the described components and parts of confession; Described the first pad structure becomes the predetermined angle stack at grade with described the second pad structure, and described predetermined angle is not less than 15 degree; Described mounting hole site is in described the first pad structure and the overlapping side of described the second pad structure; The edge of described the first pad structure and the underlapped side of described the second pad structure is connected with a tangent line, and the zone that described tangent line and described the first pad structure and described the second pad structure surround consists of the 3rd pad structure.
Preferably, described predetermined angle is 45 degree, and described the first pad structure becomes 45 degree angle stacks at grade with described the second pad structure.
Preferably, described the first pad structure and described the second pad structure are the kidney-shaped setting, and described the first pad structure is identical with described the second pad structure shape.
Preferably, be equipped with copper-clad on described the first pad structure, described the second pad structure and described the 3rd pad structure.
Preferably, described the first pad structure and the overlapping side of described the second pad structure are provided with copper-clad around described installing hole, zone on described the first pad structure and described the second pad structure except the copper-clad around described installing hole, and be equipped with solder mask on the 3rd pad structure.
Preferably, described the first pad structure, described the second pad structure and described the 3rd pad structure are integrated.
The utility model also proposes a kind of pcb board, and this pcb board comprises a plurality of pads, and this pad comprises for the first pad structure of welding component and the second pad structure, and the installing hole that is used for the pin insertion of the described components and parts of confession; Described the first pad structure becomes the predetermined angle stack at grade with described the second pad structure, and described predetermined angle is not less than 15 degree; Described mounting hole site is in described the first pad structure and the overlapping side of described the second pad structure; The edge of described the first pad structure and the underlapped side of described the second pad structure is connected with a tangent line, and the zone that described tangent line and described the first pad structure and described the second pad structure surround consists of the 3rd pad structure.
The pad that the utility model proposes, by the first pad structure and the second pad structure is superimposed, and increase by the 3rd pad structure and form, make the component's feet after the clubfoot of machine transplanting of rice equipment is processed all be covered in whole pad, the different component's feet molding modes that form when adapting to dissimilar machine transplanting of rice equipment placing components, thereby do not consider when avoiding designing because of pcb board to exceed through the clubfoot length of the component's feet of the machine transplanting of rice equipment plug-in mounting moulding phenomenon that pad edge causes line short, effectively improve the line short hidden danger of pcb board.
Description of drawings
Fig. 1 is the schematic diagram of placing components in prior art;
Fig. 2 is the schematic diagram of the clubfoot molding mode of machine transplanting of rice equipment after to the components and parts plug-in mounting in prior art;
Fig. 3 is the structural representation of conventional pad in prior art.
Fig. 4 is the composition structural representation of the utility model pad preferred embodiment;
Fig. 5 is the structural representation of the utility model pad the first embodiment;
Fig. 6 is the structural representation of the utility model pad the second embodiment.
The realization of the purpose of this utility model, functional characteristics and advantage in connection with embodiment, and is described further with reference to accompanying drawing.
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with Figure of description and specific embodiment.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 proposes a kind of pad.
With reference to Fig. 4, Fig. 4 is the composition structural representation of the utility model pad preferred embodiment.
In the utility model preferred embodiment, pad comprises the first pad structure 11, the second pad structure 12 and installing hole 14; The first pad structure 11 and the second pad structure 12 are used for the welding component (not shown), and installing hole 14 is used for inserting for the pin 15 of components and parts; The first pad structure 11 becomes the predetermined angle stack at grade with the second pad structure 12, and this predetermined angle is not less than 15 degree; Installing hole 14 is positioned at the first pad structure 11 and the overlapping side of the second pad structure 12; The edge of the first pad structure 11 and the second underlapped side of pad structure 12 is connected with a tangent line 16, and the zone that this tangent line 16 and the first pad structure 11 and the second pad structure 12 surround consists of the 3rd pad structure 13.
In the present embodiment, pad is by superimposed with the first pad structure 11 and the second pad structure 12, and increase by the 3rd pad structure 13 and form, make the component's feet 15 after the clubfoot of machine transplanting of rice equipment is processed all be covered in whole pad, different component's feets 15 molding modes that form when adapting to dissimilar machine transplanting of rice equipment placing components.
Relative prior art, do not consider when the pad that the utility model proposes can be avoided designing because of pcb board to exceed through the clubfoot length of the component's feet 15 of the machine transplanting of rice equipment plug-in mounting moulding phenomenon that pad edge causes line short, effectively improve the line short hidden danger of pcb board.
Particularly, above-mentioned predetermined angle is 45 degree, and the first pad structure 11 becomes 45 degree angle stacks at grade with the second pad structure 12, in addition, also can set as required described predetermined angle, this is not restricted herein.
In above-described embodiment, the first pad structure 11 and the second pad structure 12 are the kidney-shaped setting, and the first pad structure 11 is identical with the second pad structure 12 shapes.
for the different molding modes of dissimilar machine transplanting of rice equipment to the components and parts plug-in mounting, in the present embodiment, the first pad structure 11 and the second pad structure 12 are preferably selected the pad structure that is the kidney-shaped shape of prolate, by the first pad structure 11 and the second pad structure 12 are become at grade 45 the degree angle mutually superpose, and the components and parts installing hole 14 on the first pad structure 11 and the second pad structure 12 is done eccentric the processing, as shown in Figure 4, installing hole 14 is on the right side of the first pad structure 11 and the second pad structure 12, the deflected length of installing hole 14 and machine transplanting of rice equipment are adaptive to the clubfoot length of component's feet 15 after bent angle is processed.In the pcb board design process, when drawing PCB figure according to the length of component's feet 15, can be by the dimensional parameters of pad be set, to obtain the pad size adaptive with the clubfoot length of component's feet 15.
In conjunction with Fig. 4 and Fig. 5, wherein Fig. 5 is the structural representation of the utility model pad the first embodiment.
In above-described embodiment, be equipped with copper-clad 17 on the first pad structure 11, the second pad structure 12 and the 3rd pad structure 13, as shown in Figure 5.
Particularly, the first pad structure 11, the second pad structure 12 and the 3rd pad structure 13 are integrated.
On the first pad structure 11, the second pad structure 12 and the 3rd integrated pad of pad structure 13, copper-clad 17 is set, namely applying the copper of concrete electric conductivity on whole pad around installing hole 14, the copper-clad 17 when making welding on pad is set up electric connecting relation with component's feet 15.
In conjunction with Fig. 4 and Fig. 6, wherein Fig. 6 is the structural representation of the utility model pad the second embodiment.
Based on above-described embodiment, in the embodiment of a distortion, the first pad structure 11 and the overlapping side of the second pad structure 12 are provided with copper-clad 17 around installing hole 14, zone on the first pad structure 11 and the second pad structure 12 except the copper-clad 17 around installing hole 14, and the 3rd be equipped with solder mask 18 on pad structure 13, as shown in Figure 6.
Particularly, the first pad structure 11, the second pad structure 12 and the 3rd pad structure 13 are integrated.
Circular pad structure along installing hole 14 reference routines on every side, on the first pad structure 11, the second pad structure 12 and the 3rd one-body molded pad of pad structure 13, copper-clad 17 is set, and at all the other region division solder masks 18 of pad, when making welding, the structural copper-clad 17 of circular pad is set up electric connecting relation with component's feet 15, there is no electric connecting relation between solder mask 18 and component's feet 15.
In the pcb board design process, pad can select above-mentioned the first embodiment according to the length of actual component's feet 15 when drawing PCB figure in or the pad in the second embodiment, for example when pin 15 length of components and parts when longer, can select the pad in above-mentioned the first embodiment, when welding, scolding tin, component's feet 15 and copper-clad 17 threes can fully be contacted, and this more can be avoided rosin joint, solder skip phenomenon; Certainly under the condition that cost allows, the shorter components and parts of pin 15 length also can select the pad in above-mentioned the first embodiment to weld, this also very convenient welding when utilizing the staff welding; When pin 15 length of components and parts more in short-term, in the situation that more can avoid rosin joint, solder skip phenomenon, can select the pad in above-mentioned the second embodiment, this has reduced the area of copper-clad 17, when making, saves pcb board the use of copper, the cost of manufacture of saving pcb board; In like manner, in the situation that can avoid rosin joint, solder skip phenomenon can guarantee to weld the time, the components and parts that pin 15 length are long also can select the pad in above-mentioned the second embodiment to weld.
The pad that the utility model proposes, by the first pad structure 11 and the second pad structure 12 is superimposed, and increase by the 3rd pad structure 13 and form, make the component's feet 15 after the clubfoot of machine transplanting of rice equipment is processed all be covered in whole pad, different component's feets 15 molding modes that form when adapting to dissimilar machine transplanting of rice equipment placing components.And when the pin 15 of components and parts is longer, the pad in above-mentioned the first embodiment can be selected, more in short-term, the pad in above-mentioned the second embodiment can be selected at the pin 15 of components and parts, can effectively avoid rosin joint, solder skip phenomenon, the cost of manufacture that can save again pcb board.
Relative prior art, the pad that the utility model proposes can plug standby yi word pattern component's feet 15 molding modes by adaline, can plug standby N font component's feet 15 molding modes by adaline again, do not consider in the time of can avoiding designing because of pcb board to exceed through the clubfoot length of the component's feet 15 of the machine transplanting of rice equipment plug-in mounting moulding phenomenon that pad edge causes line short, effectively improve the line short hidden danger of pcb board, also convenient welding.
The utility model also proposes a kind of pcb board, and this pcb board comprises a plurality of pads, and the structure of this pad and beneficial effect repeat no more all with reference to above-described embodiment herein.
On described only as preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present utility model.
Claims (7)
1. a pad, is characterized in that, comprises the first pad structure and the second pad structure for welding component, and be used for the installing hole for the pin insertion of described components and parts; Described the first pad structure becomes the predetermined angle stack at grade with described the second pad structure, and described predetermined angle is not less than 15 degree; Described mounting hole site is in described the first pad structure and the overlapping side of described the second pad structure; The edge of described the first pad structure and the underlapped side of described the second pad structure is connected with a tangent line, and the zone that described tangent line and described the first pad structure and described the second pad structure surround consists of the 3rd pad structure.
2. pad as described in claim 1 any one, is characterized in that, described predetermined angle is 45 degree, and described the first pad structure becomes 45 degree angle stacks at grade with described the second pad structure.
3. pad as claimed in claim 1, is characterized in that, described the first pad structure and described the second pad structure are the kidney-shaped setting, and described the first pad structure is identical with described the second pad structure shape.
4. pad as described in the claims 1 to 3 any one, is characterized in that, is equipped with copper-clad on described the first pad structure, described the second pad structure and described the 3rd pad structure.
5. pad as described in the claims 1 to 3 any one, it is characterized in that, described the first pad structure and the overlapping side of described the second pad structure are provided with copper-clad around described installing hole, zone on described the first pad structure and described the second pad structure except the copper-clad around described installing hole, and be equipped with solder mask on the 3rd pad structure.
6. pad as claimed in claim 1, is characterized in that, described the first pad structure, described the second pad structure and described the 3rd pad structure are integrated.
7. a pcb board, is characterized in that, comprises a plurality of pads, and each described pad comprises pad as described in claim 1 to 6 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320260946 CN203279345U (en) | 2013-05-14 | 2013-05-14 | Bonding pad and PCB board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320260946 CN203279345U (en) | 2013-05-14 | 2013-05-14 | Bonding pad and PCB board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203279345U true CN203279345U (en) | 2013-11-06 |
Family
ID=49509661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320260946 Expired - Lifetime CN203279345U (en) | 2013-05-14 | 2013-05-14 | Bonding pad and PCB board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203279345U (en) |
-
2013
- 2013-05-14 CN CN 201320260946 patent/CN203279345U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |