CN208337998U - Printed IC board error-proof structure - Google Patents
Printed IC board error-proof structure Download PDFInfo
- Publication number
- CN208337998U CN208337998U CN201820655878.2U CN201820655878U CN208337998U CN 208337998 U CN208337998 U CN 208337998U CN 201820655878 U CN201820655878 U CN 201820655878U CN 208337998 U CN208337998 U CN 208337998U
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- China
- Prior art keywords
- hole
- substrate
- printed
- distance
- fool proof
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of printed IC board error-proof structures, it includes substrate, the substrate is provided with long leg and short leg, the length of the long leg is not less than 800mm, four ends angle of the substrate is respectively arranged with first positioning hole, the substrate is provided with fool proof hole at the long leg of side, and the distance at the hole heart to the left side short leg edge in the fool proof hole is different at a distance from the hole heart to right short portion edge in fool proof hole.Fool proof hole is arranged by the side long leg in substrate in the utility model, using fool proof hole the hole heart to left side short leg edge difference of the distance at a distance from the hole heart to right short portion edge in fool proof hole, so that printed wiring board is when installing fixed, if upper and lower, positive and negative installation direction, fool proof hole can not all be matched with the pilot pin on mold, i.e. printed wiring board can not fix, and only installation is correct, and printed wiring board is just capable of fixing.
Description
Technical field
The utility model relates to a kind of printed wiring boards, more particularly, to a kind of printed IC board error-proof structure.
Background technique
The production of PCB is that a production process is long, more with equipment, the frequent complex process of personnel amendment.Therefore, at it
In any one process neglect, it is possible to cause the loss that can not be retrieved.
When punching pcb board, first have to for pcb board being fixed, it, may if pcb board placement direction is anti-
Lead to drilling error, once mistake occurs for punching, it is likely that and batch mistake causes useless plate, improves production cost, therefore making
Make design end just to the material, production process, product type of easy error, tools etc. design fool proof.
Utility model content
Based on this, it is necessary in view of the deficiencies of the prior art, provide one kind and avoid substrate that mistake occurs in drill process
Printed IC board error-proof structure.
In order to solve the above technical problems, the technical scheme adopted by the utility model is:, and a kind of printed IC board is anti-
Slow-witted structure comprising substrate, the substrate are provided with long leg and short leg, and the length of the long leg is not less than 800mm, institute
The four ends angle for stating substrate is respectively arranged with first positioning hole, and the substrate is provided with fool proof hole at the long leg of side, described
The distance at the hole heart in fool proof hole to left side short leg edge is different at a distance from the hole heart to right short portion edge in fool proof hole.
The distance at the hole heart in the fool proof hole to left side short leg edge is less than fool proof hole in one of the embodiments,
Distance of the hole heart to right short portion edge.
The substrate is arranged at intervals with second location hole in the middle part of long leg in one of the embodiments,.
Edge Distance >=3.5mm of the second location hole apart from long leg in one of the embodiments,.
It is equipped with solder mask in the substrate in one of the embodiments, the substrate is in being equipped with several welderings in solder mask
Connect hole；The substrate side is provided with line pad, and the substrate side is additionally provided with spare pad, institute in line pad side
Spare pad is stated to be arranged on solder mask.
The spare pad is made of multiple concentric loops in one of the embodiments,.
The welding resistance film is equipped in the line pad in one of the embodiments, to open a window, the welding resistance film windowing
Center is overlapped with the center of line pad.
Prevent in conclusion the utility model printed IC board error-proof structure is arranged by the side long leg in substrate
Slow-witted hole, using fool proof hole the hole heart to left side short leg edge distance and fool proof hole the hole heart to right short portion edge away from
From difference so that printed wiring board is when installing fixed, if up and down, positive and negative installation direction, fool proof hole all can not be with mold
On pilot pin match, i.e., printed wiring board can not fix, and only installation is correct, and printed wiring board is just capable of fixing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model printed IC board error-proof structure.
Specific embodiment
For the feature, technological means and specific purposes achieved, function that can further appreciate that the utility model, below
The utility model is described in further detail in conjunction with attached drawing and specific embodiment.
As shown in Figure 1, the utility model printed IC board error-proof structure includes substrate 10, the substrate 10 is provided with
The length of long leg 11 and short leg 12, the long leg 11 is not less than 800mm, and four ends angle of the substrate 10 is respectively set
There is first positioning hole 20, in order to carry out processing operation with having greater room on a printed-wiring board, the substrate 10 is in side
Fool proof hole 30, distance and fool proof hole 30 of the hole heart in the fool proof hole 30 to 12 edge of left side short leg are provided at long leg 11
The hole heart to 12 edge of right short portion distance it is different, specifically, the hole heart in the fool proof hole 30 to 12 side of left side short leg
The distance of edge is less than the hole heart in fool proof hole 30 to the distance at 12 edge of right short portion, i.e., when installing fixed, if up and down, just
Anti- installation direction, the fool proof hole 30 can not all be matched with the pilot pin on mold, i.e., printed wiring board can not fix, only
Installation is correct, and printed wiring board is just capable of fixing.
The substrate 10 is arranged at intervals with second location hole 40 in the middle part of long leg 11, to prevent substrate 10 in forming process
It is middle that the size on 11 direction of long leg is unstable and lateral bending because swinging etc. caused by reasons, in engineer application, for convenience of punching, the
The distance between a positioning hole 20 and second location hole 40 are generally identical.
Edge Distance >=3.5mm of the second location hole 40 apart from long leg 11, the diameter of the location hole are a length of
1.50mm, the quantity of the second location hole 40 are two.
It is equipped with solder mask 50 in the substrate 10, the substrate 10 is in being equipped with several welding holes 60 in solder mask 50；It is described
10 side of substrate is provided with line pad 70, and the line pad 70 is made of multiple concentric loops, in the line pad 70
Portion is respectively equipped with the welding resistance film windowing 80 of correspondingly-shaped, the center of welding resistance film windowing 80 and corresponding line pad 70
Center be overlapped.
10 side of substrate is additionally provided with spare pad 90 in 70 side of line pad, and the spare setting of pad 90 exists
On solder mask 50, the spare pad 90 is made of multiple concentric loops, to be separated with welding hole 60, so that user exists
Spare pad 90 can be separated with welding hole 60 when being punched to substrate 10 and come, user is avoided to misplay hole location.
If the copper PAD and line edge on the substrate 10 of production cover the welding resistance and lines alignment mark of the upper welding resistance film,
Then illustrate welding resistance contraposition offset be more than more than client's allowable tolerance, can be inclined by corresponding welding resistance contraposition therefore when beer sheet metal forming
The substrate 10 of shifting, which sorts out, to be come, and then the spare pad 90 on solder mask 50 drills, to substitute in former line pad 70
Hole location, reduce production cost.
In conclusion the utility model printed IC board error-proof structure is set by the side long leg 11 in substrate 10
Fool proof hole 30 is set, it is short to right side to the distance at 12 edge of left side short leg and the hole heart in fool proof hole 30 using the hole heart in fool proof hole 30
The difference of the distance at 12 edge of edge, so that printed wiring board is when installing fixed, if up and down, positive and negative installation direction, fool proof
Hole 30 can not all be matched with the pilot pin on mold, i.e., printed wiring board can not fix, and only installation is correct, printed wiring board
Just it is capable of fixing.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to the scope of the utility model.It should be pointed out that for the ordinary skill of this field
For personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this
The protection scope of utility model.Therefore, the protection scope of the utility model should be determined by the appended claims.
Claims (7)
1. a kind of printed IC board error-proof structure, it is characterised in that: including substrate, the substrate is provided with long leg and short
The length of edge, the long leg is not less than 800mm, and four ends angle of the substrate is respectively arranged with first positioning hole, described
Substrate is provided with fool proof hole, distance and fool proof hole of the hole heart in the fool proof hole to left side short leg edge at the long leg of side
The hole heart to right short portion edge distance it is different.
2. printed IC board error-proof structure according to claim 1, it is characterised in that: the hole heart in the fool proof hole arrives
The distance at left side short leg edge is less than the hole heart in fool proof hole to the distance at right short portion edge.
3. printed IC board error-proof structure according to claim 1 or 2, it is characterised in that: the substrate is in long side
Second location hole is arranged at intervals in the middle part of portion.
4. printed IC board error-proof structure according to claim 3, it is characterised in that: the second location hole distance
Edge Distance >=3.5mm of long leg.
5. printed IC board error-proof structure according to claim 1 or 2, it is characterised in that: be equipped in the substrate
Solder mask, the substrate in solder mask be equipped with several welding holes；The substrate side is provided with line pad, the substrate-side
While being additionally provided with spare pad in line pad side, the spare pad is arranged on solder mask.
6. printed IC board error-proof structure according to claim 5, it is characterised in that: the spare pad is by multiple
Concentric loop composition.
7. printed IC board error-proof structure according to claim 5, it is characterised in that: be equipped in the line pad
The center of the windowing of the welding resistance film, the welding resistance film windowing is overlapped with the center of line pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820655878.2U CN208337998U (en) | 2018-05-04 | 2018-05-04 | Printed IC board error-proof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820655878.2U CN208337998U (en) | 2018-05-04 | 2018-05-04 | Printed IC board error-proof structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208337998U true CN208337998U (en) | 2019-01-04 |
Family
ID=64776411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820655878.2U Expired - Fee Related CN208337998U (en) | 2018-05-04 | 2018-05-04 | Printed IC board error-proof structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208337998U (en) |
-
2018
- 2018-05-04 CN CN201820655878.2U patent/CN208337998U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190104 |