CN201608987U - Clamping support for printed circuit board assembly - Google Patents
Clamping support for printed circuit board assembly Download PDFInfo
- Publication number
- CN201608987U CN201608987U CN2010201667185U CN201020166718U CN201608987U CN 201608987 U CN201608987 U CN 201608987U CN 2010201667185 U CN2010201667185 U CN 2010201667185U CN 201020166718 U CN201020166718 U CN 201020166718U CN 201608987 U CN201608987 U CN 201608987U
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- clamping
- support
- bracket
- holder
- supporting bracket
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Abstract
The utility model relates to a clamping support for a printed circuit board assembly (PCBA), which is used for clamping a pair of opposite edges perpendicular to a conveying track and arranged on the PCBA positioned on the conveying track of a reflow soldering furnace. The clamping support comprises two clamping support members (100), each clamping support member comprises a narrow and long support board (101) and two to five clamping pieces (103), wherein two ends of each support board are respectively provided with one clamping piece, one end of each clamping piece is connected with each support board, and the other end thereof is used for clamping the opposite edges of the PCBA. The clamping support with the structure not only can prevent the PCBA from generating thermal deformation, but also has the advantages of simple structure and convenient installation. When the outer side of each support board is provided with a narrow and long boss (102) and the clamping pieces are pressing reeds, the clamping support can obtain better anti-deformation effect and clamping effect. In order to lead the clamping support to be applicable to a wider PCBA, the clamping support can also comprises one or more reinforced support boards (105) for connecting two support boards.
Description
Technical field
The utility model relates to a kind of clamp bracket of printed circuit-board assembly, is used for clamping on the pcb component that places on the reflow soldering transporting rail and the perpendicular a pair of opposite edges part of transporting rail in solder reflow process.
Background technology
In solder reflow process, the furnace temperature of reflow soldering is very high.For kupper solder is arranged, furnace temperature is up to 205-225 ℃; For lead-free solder, furnace temperature is up to 230-250 ℃.Under such temperature, be shelved on printed circuit-board assembly (hereinafter to be referred as the PCBA plate) temperature distortion on the reflow soldering and recessed, especially size PCBA plate deformation extent big, thin thickness is bigger.The be heated decline of back bending resistance of the insulation board self that such distortion stems from the PCBA plate.Because the temperature distortion of PCBA plate, can directly cause the dislocation of element on the PCBA plate, when especially the PCBA plate of temperature distortion is installed (mounting) element in follow-up technology, on reverse side, will cause and to come installation elements by the mechanical hand on the production line, and cause percent defective to raise.
In order to solve such problem, China's utility model patent specification (ZL200820152904.6) discloses and a kind ofly has been used to solve that size is big, the auxiliary fixture of the PCBA plate problem on deformation of thin thickness, should auxiliary fixture be Turbogrid plates, on a plurality of positions on the Turbogrid plates, be provided with the adjustment positioning element that is used for clamping PCBA plate.But, this auxiliary fixture structure more complicated.And, when the PCBA plate of fixing different size, adjust the position of positioning component with respect to whole auxiliary fixture, shake positioning component again and fix the PCBA plate, therefore there is the problem of fixation workpiece length consuming time.
The utility model content
For this reason, the technical problems to be solved in the utility model provides that a kind of simple in structure, materials are saved and the clamp bracket of the printed circuit-board assembly being convenient to install.
In order to solve the problems of the technologies described above, the printed circuit-board assembly clamp bracket that is used to clamp on the printed circuit-board assembly that places on the reflow soldering transporting rail with the perpendicular a pair of opposite edges part of transporting rail provided by the utility model comprises two clamping support components, every clamping support component comprises a long narrow supporting bracket and two to five holders that are connected with described supporting bracket, a holder is wherein arranged near the two ends of every supporting bracket, each holder is connected with this supporting bracket with the one end, and the other end is used to clamp the opposite edges part of described printed circuit-board assembly.
Because PCBA plate holder of the present utility model is held support and is only comprised two long narrow supporting brackets and a plurality of holder, like product of the prior art relatively, it is simple in structure, and materials are saved, easy for installation, and also can reach the same effect that prevents the temperature distortion of PCBA plate.
As a kind of preferred version of the present utility model, a long narrow boss that projects upwards can respectively be set on the top surface of described two long narrow supporting brackets, and an end of each holder that is connected with described supporting bracket is connected on this long narrow boss by connector.As further preferred, described long narrow boss is positioned at the outside of described supporting bracket, and the cross section that makes described supporting bracket is L shaped.Adopt this supporting bracket that has long narrow boss, can further improve the non-deformability of supporting bracket self, and then help to prevent the temperature distortion of PCBA plate and recessed.
Further improvement as above-mentioned preferred version, described holder is a making leaf spring, one end level, the other end forms reclinate arc, its level one end is connected with described long narrow boss by screw or rivet, and the bottom of reclinate arc flexibly is resisted against on the opposite edges part of the printed circuit board (PCB) on the horizontal top surface that places described supporting bracket.Adopt the holder of this structure, can clamp the opposite edges part of PCBA plate more securely.
As the further improvement of above-mentioned preferred version, the holder of every clamping support component is preferably three to five, is connected to equally spacedly on the described supporting bracket.
Especially in this case, can further between the inboard adjacent holder of described supporting bracket, form towards the recessed groove of described long narrow boss.Adopt the supporting bracket of this structure, not only can more save material, be particularly useful for clamping and support on the PCBA plate not opposite edges part with the technology limit.
As another kind of preferred version of the present utility model, the PCBA plate holder is held support and is comprised that is also strengthened a support plate, and this reinforcement support plate is connected to the middle part of two supporting brackets with inserting mode.Adopt such structure, strengthened supporting role, thereby help to prevent the PCBA plate temperature distortion of lateral dimension broad and recessed the PCBA plate of lateral dimension broad.
In sum, PCBA plate holder of the present utility model is held support and is supported the PCBA plate with the transporting rail of reflow soldering furnace, can prevent PCBA plate Yin Gaowen and deflection deformation in reflow soldering furnace effectively.PCBA plate of the present utility model has advantage simple in structure, in light weight, easy accessibility.
Description of drawings
Below accompanying drawing of the present utility model is described.
Fig. 1 has installed the utility model PCBA plate holder to hold the schematic diagram that the PCBA plate of support is shelved on running status on the reflow soldering transporting rail;
Fig. 2 shows the PCBA plate that four limits all have the technology limit;
Fig. 3 only show with opposite side that transporting rail parallels on have the PCBA plate on technology limit;
Fig. 4 holds the vertical view of support for first kind of execution mode PCBA of the utility model plate holder has been installed on the PCBA plate shown in Figure 2;
Fig. 5 holds the vertical view of support for second kind of execution mode PCBA of the utility model plate holder has been installed on the PCBA plate shown in Figure 3;
Fig. 6 holds the vertical view of support for the third execution mode of the utility model PCBA plate holder;
Fig. 7 shows three kinds of execution mode PCBA of the utility model plate holder and holds support and cut open the profile of getting (but screw does not illustrate with section among the figure) along the A-A line of Fig. 6; And
Fig. 8 shows the third execution mode of the utility model PCBA plate holder and holds support and cut open the profile of getting (but screw does not illustrate with section among the figure) along the B-B line of Fig. 6.
Embodiment
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.
Fig. 1 shows the schematic diagram that the utility model PCBA plate holder is held PCBA plate 200 running status on the transporting rail 300 of reflow soldering of support is installed.The utility model PCBA plate holder is held support and is comprised two clamping support components 100, clamp on the PCBA plate 200 a pair of opposite edges parts (be designated hereinafter simply as first marginal portion) perpendicular respectively with transporting rail 300, and marginal portion (hereinafter to be referred as second marginal portion) is shelved on the transporting rail 300, thereby prevent that PCBA plate 200 is out of shape because of the high temperature that stands reflow soldering in solder reflow process with perpendicular another of this a pair of opposite edges part.
PCBA plate 200 is generally rectangular shape, because the requirement of processing technology need be provided with the technology limit, promptly on it electronic component is not installed, and does not also have the part of printed circuit, and these technology limits will be removed after finishing processing, stay the PCBA board finished product.According to the setting on technology limit, PCBA plate 200 can be divided into two kinds of situations.First kind of PCBA plate as shown in Figure 2, its four side all has the technology limit, the part that extends outward with the perpendicular both sides of transporting rail is called the first technology limit 201, and the part that the both sides that parallel with transporting rail extend outward is called the second technology limit 202.PCBA plate 200 shown in Fig. 1 is this PCBA plate, thereby two clamping support components 100 that the utility model PCBA plate holder is held support clamp on the first technology limit 201 of PCBA plate.Second kind of PCBA plate 200 as shown in Figure 3, it only has technology limit 202 in the both sides parallel with transporting rail, and do not have the technology limit with the perpendicular both sides of transporting rail, thereby two clamping support components 100 that the utility model PCBA plate holder is held support directly are clamped on the PCBA plate 200.
Fig. 4 shows the PCBA plate 200 that first kind of execution mode PCBA of the utility model plate holder is held support is installed, and this PCBA plate holder is held support and is suitable for clamping and supports the PCBA plate that four sides all have technology limit 201,202.Owing to do not have electronic component and printed wire on the technology limit of this PCBA plate, therefore allow the relative broad of width of clamping, thereby its structure be the simplest.Two clamping support components 100 that this PCBA plate holder is held support respectively comprise a long narrow supporting bracket 101 and two to five holders 103 (shown in Fig. 4 three), the top surface of these two supporting brackets 101 is a level, its length can equal the distance between the transporting rail, perhaps slightly little than the distance between the transporting rail, thereby PCBA plate 200 first technology limits 201 all can be clamped, another that does not influence the PCBA plate again is shelved on the transporting rail technology limit 202.Holder 103 can be making leaf spring, and one end level is fixed on supporting bracket 101 top surface Outboard Sections with screw or rivet 104, and the arch section of the other end for slightly being bent upwards.The downside of this arch section can flexibly clamp the first technology limit, 201 upper surfaces of the PCBA plate that is shelved on the supporting bracket 101 top surface inside parts.Certainly, this holder 103 also can be made the slightly thin plate of the slightly thick end of an end, a thicker end is screwed in supporting bracket 101 top surface Outboard Sections by a screw, thereby can be similar to old-fashioned photo frame block the back plate rotatable fastener such, forward 201 tops, the first technology limit of the PCBA plate that is shelved on the supporting bracket 101 top surface inside parts to by rotating the end that holder 103 is thin, thereby clamp this first technology limit.Also can slightly make improvements for this execution mode it, promptly as shown in Figure 5, at long narrow boss 102 that projects upwards of supporting bracket 101 arranged outside, this has not only improved the flexural strength of supporting bracket 101 self, help further to prevent the distortion of PCBA plate, and can simplify the structure of holder, and PCBA plate 200 is supported in clamping more quietly.This holder 103 can be a thin plate, and an end on this long narrow boss 102, just can turn to the other end 201 tops, the first technology limit of PCBA plate by a screw by rotation then.In this case, holder 103 also can adopt and be similar to making leaf spring shown in Figure 7, and relevant this respect content can be seen below in conjunction with second kind of execution mode explanation that Fig. 7 did.
For second kind of PCBA plate 200, owing on the PCBA plate 200 the second technology limit 202 is only arranged, and there is not the first technology limit, thereby PCBA plate holder two clamping support components 100 holding support will directly be clamped in first marginal portion of PCBA plate 200, in view of electronic component being installed near first marginal portion and having printed wire, thereby it is less to allow these two clamping support components 100 to clamp the used width of PCBA plate 200, in order to avoid when clamp bracket is installed, damage near the element of installing a pair of first marginal portion on the PCBA plate 200.
In order both to clamp the PCBA plate 200 that has a pair of first technology limit 201, can clamp the PCBA plate 200 that does not have a pair of first technology limit 201 again and not damage element, two clamping support components 100 of clamp bracket clamp PCBA plate 200 used width must be enough little, in order to clamp PCBA plate 200 with the first technology limit 201, from the clamping effect, can be designed to 5-10mm; For the PCBA plate 200 that does not have the first technology limit 201, allowing the clamping support component 100 and the contact width of PCBA plate 200 is 3-5mm.For this reason, design second execution mode that the utility model PCBA plate holder is held support, as shown in Figure 5.
PCBA plate holder shown in Figure 5 is held support and is also comprised two clamping support components 100, every clamping support component 100 comprises that equally a long narrow supporting bracket 101 and three holders (but are not limited to three, can select according to PCBA plate width, be generally three to five).
The length of two supporting brackets 101 can equate, and preferably equals the distance between a pair of second edge after PCBA plate 200 removes a pair of second technology limit.In other words, clamping support component 100 preferably has long as far as possible length and prevents the deflection deformation of PCBA plate 200, does not travel forward but do not hinder PCBA plate 200 to follow it on transporting rail.Different with first kind of execution mode is, two supporting brackets 100 respectively are provided with a long narrow boss 102 that projects upwards on its top surface, this long narrow boss 102 preferably has identical length with supporting bracket 101, this long narrow boss 102 is preferred and supporting bracket 101 is integrally formed, but connects as one after can separately forming.In addition, long narrow boss 102 preferably is arranged on the outside of supporting bracket 101, so that its cross section is shown in Figure 7 L shaped.Under this structure, each holder 103 preferred making leaf spring as shown in Figure 7, one end level, the other end forms reclinate arc, its level one end is connected on the long narrow boss 102 by screw or rivet 104, and the bottom of reclinate arc flexiblely is resisted against on first marginal portion of PCBA plate 200 on the horizontal top surface that places supporting bracket 101.The curved side of holder 103 preferably forms the angle of about 30-45 degree with the surface of supporting bracket 101, like this, can be convenient to make PCBA plate 200 folders to establish therebetween, and prevent that the edge of PCBA plate 200 and the leading edge of holder 103 from bumping.Three holders shown in Figure 5 connect on the long narrow boss 102 of supporting bracket 101 equally spacedly.
In order to make supporting bracket 101 reduce contact area with first marginal portion of PCBA plate 200 as far as possible, to avoid near the electronic component its first marginal portion, a second kind of execution mode shown in Figure 5 and a main difference part of first kind of execution mode shown in Figure 4 are: form the groove 106 that is recessed into towards long narrow boss 102 between the inboard adjacent holder 103 of supporting bracket 101, shown in broken lines among Fig. 5, to this, also can be referring to the groove 106 in the third execution mode of the utility model shown in Figure 7.
Be applicable to PCBA plate in order to make the utility model PCBA plate holder hold support with broad width, Fig. 6 shows the third execution mode that the utility model PCBA plate holder is held support, except comprising two clamping support components 100, also comprise and strengthen support plate 105, be used to strengthen supporting role, thereby help to prevent PCBA plate 200 temperature distortions that lateral dimension is bigger and recessed the bigger PCBA plate 200 of lateral dimension.Strengthen adopting the socket connection mode between support plate 105 and two clamping support components 100, thereby can fit together strengthening support plate 105 and two clamping support components 100 very easily.Fig. 8 shows the connected mode of strengthening support plate 105 and two clamping support components 100 in the mode of profile, in the inboard of two supporting bracket 101 middle parts a projection that extends outward is arranged respectively, and the two ends of strengthening support plate 105 respectively are provided with one and the corresponding recess of this projection, combine thereby can peg graft easily.But, can also adopt other inserting mode, for example, inboard settings can be for strengthening that support plate 105 directly insert or can be for the recess of reinforcement support plate 105 end projections insertions two supporting bracket 101 middle parts.Strengthen the position that support plate 105 is avoided element on the PCBA plate 200 in order to make, can a plurality of projections or recess be set in the middle part of two supporting bracket 105 inboards, thereby can select to allow reinforcement support plate 105 be inserted on the different projection or recess for the PCBA plate of different size, to avoid the element on the PCBA plate.
According to above-mentioned execution mode of the present utility model, establish a pair of clamping support component 100 by folder on first marginal portion of PCBA plate 200, make the clamping support component 100 support PCBA plate 200, solved PCBA plate 200 technical problem because of high temperature deflection deformation under deadweight of reflow soldering in solder reflow process with the transporting rail of reflow soldering.
It is short to be designed to the times spent simple in structure, in light weight and mounting or dismounting on PCBA plate 200 according to clamping support component 100 of the present utility model, is suitable for the actual operating position of reflow soldering production line.Compared with prior art, install and remove conveniently, and save material greatly, reduced cost.
Though illustrated and described embodiment more of the present utility model above in conjunction with the accompanying drawings; but those skilled in the art is to be understood that; under the situation that does not depart from principle of the present utility model and spirit; can make variation and change to these execution modes, variation of being made and change still drop within the protection range of the utility model and equivalent thereof.
Claims (7)
1. the clamp bracket of a printed circuit-board assembly, be used to clamp on the printed circuit-board assembly that places on the reflow soldering transporting rail and the perpendicular a pair of opposite edges part of transporting rail, it is characterized in that: described clamp bracket comprises two clamping support components (100), every clamping support component (100) comprises a long narrow supporting bracket (101) and two to five holders (103) that are connected with described supporting bracket (100), wherein near the two ends of every supporting bracket (101) holder (103) is arranged, each holder (103) is connected with this supporting bracket (101) with the one end, and the other end is used to clamp the opposite edges part of described printed circuit-board assembly.
2. according to the described clamp bracket of claim 1, it is characterized in that: a long narrow boss (102) that projects upwards respectively is set on the top surface of described two long narrow supporting brackets (101), and an end of each holder (103) that is connected with described supporting bracket (101) is connected on this long narrow boss (102) by connector.
3. according to the described clamp bracket of claim 2, it is characterized in that: described long narrow boss (102) is positioned at the outside of described supporting bracket (101), and the cross section that makes described supporting bracket (101) is L shaped.
4. according to claim 2 or 3 described clamp bracket, it is characterized in that: described holder (103) is a making leaf spring, one end level, the other end forms reclinate arc, its level one end is connected with described long narrow boss (102) by screw or rivet (104), and the bottom of reclinate arc flexiblely is resisted against on the opposite edges part that places the printed circuit board (PCB) on described supporting bracket (101) horizontal top surface.
5. according to each described clamp bracket in claim 2 or 3, it is characterized in that: the holder (103) of every clamping support component (100) is three to five, is connected to equally spacedly on the described supporting bracket (101).
6. according to the described clamp bracket of claim 5, it is characterized in that: the inboard of described supporting bracket (101) forms between adjacent holder (103) towards the recessed groove (106) of described long narrow boss (102).
7. according to each described clamp bracket in the claim 1 to 3, it is characterized in that: described clamp bracket comprises that is also strengthened a support plate (105), and described reinforcement support plate (105) is connected to the middle part of two supporting brackets (101) with inserting mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201667185U CN201608987U (en) | 2010-03-26 | 2010-03-26 | Clamping support for printed circuit board assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201667185U CN201608987U (en) | 2010-03-26 | 2010-03-26 | Clamping support for printed circuit board assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201608987U true CN201608987U (en) | 2010-10-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201667185U Expired - Lifetime CN201608987U (en) | 2010-03-26 | 2010-03-26 | Clamping support for printed circuit board assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201608987U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103687311A (en) * | 2012-09-07 | 2014-03-26 | 三星电机株式会社 | Carrier clamp for conveying plate |
| CN106973516A (en) * | 2012-01-02 | 2017-07-21 | 穆特拉茨国际有限公司 | The positioning and transmission of substrate |
| CN109625557A (en) * | 2018-12-10 | 2019-04-16 | 信丰文峰电子科技有限公司 | A kind of printed circuit board transport device |
| CN113747779A (en) * | 2020-05-27 | 2021-12-03 | 先进装配系统有限责任两合公司 | Transport system for moving substrates and functional apparatus comprising the same |
-
2010
- 2010-03-26 CN CN2010201667185U patent/CN201608987U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106973516A (en) * | 2012-01-02 | 2017-07-21 | 穆特拉茨国际有限公司 | The positioning and transmission of substrate |
| CN106973516B (en) * | 2012-01-02 | 2019-06-14 | 穆特拉茨国际有限公司 | The positioning and transmission of substrate |
| CN103687311A (en) * | 2012-09-07 | 2014-03-26 | 三星电机株式会社 | Carrier clamp for conveying plate |
| CN109625557A (en) * | 2018-12-10 | 2019-04-16 | 信丰文峰电子科技有限公司 | A kind of printed circuit board transport device |
| CN113747779A (en) * | 2020-05-27 | 2021-12-03 | 先进装配系统有限责任两合公司 | Transport system for moving substrates and functional apparatus comprising the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FLEXCOMPUTING (SUZHOU) CO., LTD. Free format text: FORMER OWNER: WEICHUANGLI ELECTRONIC TECHNOLOGY (SHANGHAI) CO., LTD. Effective date: 20131218 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201801 JIADING, SHANGHAI TO: 215224 SUZHOU, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131218 Address after: Suzhou Wuzhong District City, Jiangsu province 215224 Guo Xiang Jie Dao Guan Pu Road No. 1 Patentee after: Flextronics computer (Suzhou) Co. Ltd. Address before: 201801 Shanghai Jiading District Malu Town Yongsheng Road No. 77 Patentee before: Flextronics Technology (Shanghai) Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101013 |