CN201750633U - Anti-floating high pressure plate - Google Patents
Anti-floating high pressure plate Download PDFInfo
- Publication number
- CN201750633U CN201750633U CN2010205039217U CN201020503921U CN201750633U CN 201750633 U CN201750633 U CN 201750633U CN 2010205039217 U CN2010205039217 U CN 2010205039217U CN 201020503921 U CN201020503921 U CN 201020503921U CN 201750633 U CN201750633 U CN 201750633U
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- CN
- China
- Prior art keywords
- floating
- circuit board
- printed circuit
- shell fragment
- elements
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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 - Fee Related
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Abstract
The utility model provides an anti-floating high pressure plate for preventing elements from being floated when the elements are inserted into a printed circuit board. The anti-floating high pressure plate mainly comprises a press plate and a plurality of elastic sheets, wherein one side surface of the press plate is provided with a plurality of grooves, each elastic sheet is arranged in each groove, one tail end of each elastic sheet is fixed with one end of each groove, the other tail end of each elastic sheet is a free end, the middle of each elastic sheet is arched, and the arched middle of each elastic sheet correspondingly presses the inserting element of the printed circuit board to avoid the floating when the press plate is arranged on the printed circuit board. Aiming at the characteristics of the distribution and the height of PCI (peripheral component interconnect) slots and PCI-E (Express) slots of the different components on the PCBA (printed circuit board assembly), the anti-floating high pressure plate is adopted for preventing the elements from being floated when the elements are inserted into the printed circuit board, thereby preventing a press block from being unavailable caused by the factors such as the limitation of the working accuracy of the machine, the allowance among the elements and the like, and reducing the reworking condition.
Description
Technical field
In order to prevent floating high device, relate in particular to a kind of when the utility model relates to a kind of plug-in unit operation in order to prevent floating high pressing plate.
Background technology
In PCBA (abbreviation of Printed Circuit Board+Assembly) processing procedure, promptly the PCB hollow plate is gone up part through SMT, passes through the whole processing procedure of DIP plug-in unit again, is called for short PCBA.
Wherein, the PCI slot, the PCI-E slot that generally use on the PCBA are Free Drop form basically, only the component pins aligning PCB of PCI slot, PCI-E slot need be gone up direct placement of corresponding via hole when promptly carrying out the plug-in unit assembling operation and get final product.
The PCI slot of the Free Drop form of generally using, PCI-E slot be not owing to there is Snap in fixing feet (being commonly called as the frog pin) at present, after finishing the plug-in unit operation, cross in the process of crest solder furnace welding at PCBA, element is floating easily high, industry uses the form of briquetting+shell fragment PCI slot, PCI-E slot to be pushed down to prevent its welding back floating high before crossing wave-soldering usually, traditional prevent floating high voltage block, make of antistatic material, general use the machine-shaping of milling cutter whole block material, or assembly unit moulding behind the processing component according to actual needs.
Can use PCI slot and PCI-E slot simultaneously on most of product, and PCI and PCI-E slot belong to two kinds of elements of different size, both highly differ, because the restriction of machining accuracy, the briquetting of monoblock or assembly unit is difficult to realize touching fully simultaneously the function that the element surface realization is effectively exerted pressure, and because similar components, the tolerance of element own, problems such as similar elements different vendor differences, serve as that the basis makes or adaptive briquetting can't adapt to and produces line and reload and (comprise the element production cycle only with the non-defective unit plate, element manufacturer etc.) situation, the problems referred to above cause element floating high bad eventually.
Summary of the invention
In view of the above problems, the utility model provides a kind of in order to prevent that element from producing floating high anti-floating hardboard when the plug-in unit.
In order to achieve the above object, the utility model has adopted following technical scheme: a kind of anti-floating hardboard, and it is floating high to prevent when being used to the printed circuit board plug-in operation that element from producing, wherein, should mainly comprise pressing plate by anti-floating hardboard, the one side is provided with some grooves; And some shell fragments, each shell fragment is positioned over respectively in the above-mentioned groove, the one end is individually fixed in this groove one end, its another end is a free end, the middle part of described shell fragment is the shape that arches upward, and when this pressing plate is positioned on the printed circuit board (PCB), described shell fragment is the middle part correspondence that arches upward and suppresses in the plug-in unit element of printed circuit board (PCB) to avoid floating high.
Preferable, the utility model provides a kind of anti-floating hardboard, and wherein, described shell fragment is the strip shell fragment, and the free-ended end of described shell fragment is the perk shape.
Compared to prior art, the utility model provides a kind of anti-floating hardboard, go up the distribution and the height characteristics of different elements PCI slot, PCI-E slot at PCBA, utilize anti-floating hardboard, it is floating high to prevent that element from producing when plug-in unit, thereby the situation that the briquetting of avoiding factors such as machining accuracy limitations and interelement tolerance to cause lost efficacy has reduced the situation of doing over again.
Description of drawings
Fig. 1 is a schematic diagram of the present utility model
Embodiment
Please refer to shown in Figure 1ly, be schematic diagram of the present utility model.The utility model provides a kind of element that prevents when being used to the printed circuit board plug-in operation to produce floating high anti-floating hardboard 10, and it mainly comprises pressing plate 101 and some shell fragments 102.
Wherein, described pressing plate 101, the one side is provided with some grooves 1011, and described groove 1011 is elongated, and this groove 1011 is parallel in twos.
Again, described some shell fragments 102, each shell fragment 102 is the strip shell fragment, be positioned over respectively in the above-mentioned groove 1011, and these shell fragment 102 1 ends 1021 are individually fixed in this groove 1,011 one ends, its another end is a free end 1022, and these free end 1022 ends are the perk shape, in addition, the middle part of described shell fragment 102 is the shape that arches upward, to be positioned on the printed circuit board (PCB) (not shown) in this pressing plate 101, promptly this pressing plate 101 side of being provided with groove 1011 and printed circuit board (PCB) are provided with a side of plug-in unit element when relative, this pressing plate 101 is imposed suitable dynamics, the corresponding respectively plug-in unit element of suppressing in printed circuit board (PCB) in middle part that arches upward to make described shell fragment 102 be, and because different elements PCI slot for example on the printed circuit board (PCB), the height characteristics of PCI-E slot, the free end 1022 stressed slips on groove 1011 of shell fragment 102 perks, thus it is floating high effectively to avoid element to produce under the situation of not damaging element.
Claims (3)
1. an anti-floating hardboard prevents when being used to the printed circuit board plug-in operation that element from producing floating height, it is characterized in that, this anti-floating hardboard mainly comprises:
Pressing plate, the one side is provided with some grooves; And
Some shell fragments, each shell fragment is positioned over respectively in the above-mentioned groove, the one end is individually fixed in this groove one end, its another end is a free end, the middle part of described shell fragment is the shape that arches upward, and when this pressing plate is positioned on the printed circuit board (PCB), described shell fragment is the middle part correspondence that arches upward and suppresses in the plug-in unit element of printed circuit board (PCB) to avoid floating high.
2. anti-floating hardboard according to claim 1 is characterized in that described shell fragment is the strip shell fragment.
3. anti-floating hardboard according to claim 1 is characterized in that the free-ended end of described shell fragment is the perk shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205039217U CN201750633U (en) | 2010-08-25 | 2010-08-25 | Anti-floating high pressure plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205039217U CN201750633U (en) | 2010-08-25 | 2010-08-25 | Anti-floating high pressure plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201750633U true CN201750633U (en) | 2011-02-16 |
Family
ID=43585307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205039217U Expired - Fee Related CN201750633U (en) | 2010-08-25 | 2010-08-25 | Anti-floating high pressure plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201750633U (en) |
-
2010
- 2010-08-25 CN CN2010205039217U patent/CN201750633U/en not_active Expired - Fee Related
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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: 20110216 Termination date: 20130825 |