CN203912363U - Reflow soldering fixing device - Google Patents

Reflow soldering fixing device Download PDF

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Publication number
CN203912363U
CN203912363U CN201420272679.5U CN201420272679U CN203912363U CN 203912363 U CN203912363 U CN 203912363U CN 201420272679 U CN201420272679 U CN 201420272679U CN 203912363 U CN203912363 U CN 203912363U
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CN
China
Prior art keywords
pcb board
leading foot
reflow soldering
magnetic part
fixed bit
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Active
Application number
CN201420272679.5U
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Chinese (zh)
Inventor
欧阳可珊
陈玲娟
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Midea Group Co Ltd
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Midea Group Co Ltd
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Publication date
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Priority to CN201420272679.5U priority Critical patent/CN203912363U/en
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Publication of CN203912363U publication Critical patent/CN203912363U/en
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Abstract

The utility model discloses a reflow soldering fixing device including a PCB fixing base and a pressing bar. The PCB fixing base is provided with at least one PCB fixing station whose edge is provided with a limiting structure. A side of the PCB fixing station is provided with a leading-out pin receiving face. A first magnetic piece is arranged on the inner side of the leading-out pin receiving face. A leading-out pin positioning pin is arranged on the leading-out pin receiving face. A second magnetic piece is arranged in the pressing bar. The first magnetic piece and the second magnetic piece pull in each other, so that the pressing bar is connected with the PCB fixing base fixedly. By adopting the technical scheme provided by the utility model, a problem that a prior reflow soldering device is not high in positioning precision is solved and conditions of staggering soldering of a PCB and leading-out pins and the like can be avoided, so that soldering efficiency is improved, soldering quality is guaranteed and poor contact due to insufficient soldering is prevented.

Description

Reflow soldering fixture
Technical field
The utility model relates to semiconductor packaging field, particularly a kind of reflow soldering fixture.
Background technology
In semiconductor packages field, power semiconductor package field particularly, pcb board is when the leading foot with non-lead frame-type welds, conventionally adopt special fixture that pcb board and leading foot are fixed, and adopt pressure-welding head to carry out pressure welding welding, conventionally adopt pressure-welding head pressure welding to be applied in the occasion of single pcb board welding, because the quantitative limitation of single welding number causes this welding efficiency low, if realize single pressure welding a plurality of single pcb boards of welding and leading foot, need high-precision welding equipment, the cooperation of frock, obviously can greatly improve the cost of equipment like this.
And if realize the welding of a plurality of single pcb boards and leading foot under the prerequisite of low equipment cost, changing pressure welding welding into reflow soldering can realize, this mode not only can realize a plurality of single pcb board welding, and do not need pressure welding welding equipment, but reflow soldering is very high to the required precision of the fixing device of pcb board and leading foot, traditional fixture cannot meet the requirement of precision, causes the phenomenons such as pcb board and leading foot dislocation welding.
Utility model content
Main purpose of the present utility model is to provide a kind of reflow soldering fixture, while being intended to utilize Reflow Soldering to weld leading foot on pcb board, pcb board and leading foot is fixed, and improves welding efficiency, guarantees welding quality, avoid due to rosin joint cause bad.
For achieving the above object, the utility model proposes a kind of reflow soldering fixture, comprise pcb board holder and at least one press strip, wherein,
Described pcb board holder is provided with at least one for the fixing pcb board fixed bit of pcb board, the edge of described pcb board fixed bit is provided with the position limiting structure for described pcb board is fixed, a side at this pcb board fixed bit is provided with for placing the leading foot placed side of leading foot, in described leading foot placed side, be provided with the first magnetic part, on described leading foot placed side, be provided with the leading foot alignment pin for described leading foot is positioned;
In described press strip, be provided with the second magnetic part, described the first magnetic part makes described press strip be fixedly connected with pcb board holder with the second magnetic part magnetic absorption.
Preferably, the naked surface spilling of described the first magnetic part is concordant with described leading foot placed side; The naked surface spilling of described the second magnetic part is concordant with the surface of described press strip.
Preferably, the both sides of the leading foot placed side that described in each, pcb board fixed bit is corresponding are respectively provided with one first magnetic part, described the second magnetic part and the corresponding setting of the first magnetic part.
Preferably, described pcb board fixed bit bottom is hollow out setting.
Preferably, described position limiting structure is step or the raised line that is arranged on described pcb board fixed bit edge.
Preferably, two relative edges of described pcb board fixed bit are provided with port.
Preferably, on described leading foot placed side, offer for described leading foot alignment pin installing hole is installed.
Preferably, the height of described leading foot alignment pin is less than or equal to 3mm.
Preferably, the end of described leading foot alignment pin is provided with taper guide angle.
Preferably, described leading foot placed side offers for picking and placeing clearance position.
The technical solution of the utility model, according to the overall dimension of pcb board, make the pcb board fixed bit that at least one can place pcb board, in the leading foot placed side of pcb board fixed bit one side, the first magnetic part is set, thereby the first magnetic part and the second magnetic part magnetic absorption are realized the fixing of leading foot, solved the not high problem of existing Reflow Soldering equipment positioning precision, the phenomenons such as pcb board and leading foot dislocation welding have been avoided, thereby improved the efficiency of welding, guaranteed the quality of welding, prevented due to rosin joint cause bad.
Accompanying drawing explanation
Fig. 1 is the structural representation of pcb board holder in the utility model reflow soldering fixture;
Fig. 2 is along the cross-sectional view of A-A direction in Fig. 1;
Fig. 3 is the structural representation of pcb board holder in the utility model reflow soldering fixture;
Fig. 4 is along the cross-sectional view of B-B direction in Fig. 3;
Fig. 5 is the assembly structure schematic diagram of pcb board holder and pcb board and leading foot in the utility model reflow soldering fixture;
Fig. 6 is the assembly structure schematic diagram of pcb board holder and press strip and pcb board and leading foot in the utility model reflow soldering fixture;
Fig. 7 is the cross-sectional view of the operation principle of the utility model reflow soldering fixture.
The realization of the utility model object, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Below in conjunction with drawings and the specific embodiments, with regard to the technical solution of the utility model, be described further.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The utility model proposes a kind of reflow soldering fixture.
Referring to figs. 1 through Fig. 7, Fig. 1 is the structural representation of pcb board holder in the utility model reflow soldering fixture; Fig. 2 is along the cross-sectional view of A-A direction in Fig. 1; Fig. 3 is the structural representation of pcb board holder in the utility model reflow soldering fixture; Fig. 4 is along the cross-sectional view of B-B direction in Fig. 3; Fig. 5 is the assembly structure schematic diagram of pcb board holder and pcb board and leading foot in the utility model reflow soldering fixture; Fig. 6 is the assembly structure schematic diagram of pcb board holder and press strip and pcb board and leading foot in the utility model reflow soldering fixture; Fig. 7 is the cross-sectional view of the operation principle of the utility model reflow soldering fixture.
In the utility model embodiment, this reflow soldering fixture comprises pcb board holder 10 and at least one press strip 20, wherein, this pcb board holder 10 is provided with at least one pcb board fixed bit 11, this pcb board fixed bit 11 is for carrying fixing pcb board 31, edge at this pcb board fixed bit 11 is provided with position limiting structure, and this position limiting structure is used for pcb board 31 to be fixed on pcb board holder 10, and can prevent that pcb board 31 from moving in the process of welding.A side at this pcb board fixed bit 11 is provided with for placing the leading foot placed side 13 of leading foot 32, on this leading foot placed side 13, is provided with leading foot alignment pin 15, and this leading foot alignment pin 15 is for positioning leading foot 32.In this leading foot placed side 13, be also provided with the first magnetic part 14.This press strip 20 is strip setting, is provided with the second magnetic part 21 in press strip 20.The corresponding press strip 20 of each pcb board fixed bit 11, also can share same press strip 20 by a plurality of pcb board fixed bits 11.When welding, now pcb board 31 is placed in pcb board fixed bit 11 and is positioned, and then leading foot 32 is placed on to leading foot placed side 13, by 15 pairs of leading foots 32 of leading foot alignment pin, position, after coated with solder, again press strip 20 is covered on leading foot 32, now because the first magnetic part 14 magnetic relative with the second magnetic part 21 is contrary, under the effect of the first magnetic part 14 and the second magnetic part 21 magnetic absorptions, press strip 20 is fixedly connected with pcb board holder 10, and then has realized the accurate location to leading foot 32.
The technical solution of the utility model, according to the overall dimension of pcb board 31, make the pcb board fixed bit 11 that at least one can place pcb board 31, at interior first magnetic part 14 that arranges in the leading foot placed side 13 of pcb board fixed bit 11 1 sides, thereby the first magnetic part 14 and the second magnetic part 21 magnetic absorptions are realized the fixing of leading foot 32, solved the not high problem of existing Reflow Soldering equipment positioning precision, the phenomenons such as pcb board 31 and leading foot 32 dislocation welding have been avoided, thereby improved the efficiency of welding, guaranteed the quality of welding, prevented due to rosin joint cause bad.
At the utility model, in a certain or all embodiment, in order to guarantee the evenness of leading foot 32 location, guarantee effectively welding, avoid rosin joint, the naked surface spilling of this first magnetic part 14 is concordant with leading foot placed side 13; The naked surface spilling of this second magnetic part 21 is concordant with the surface of press strip 20, and while having avoided welding, leading foot 21 occurs rosin joint, skew, connects the problems such as tin.
At the utility model in a certain or all embodiment, for the reliability that guarantees that leading foot 32 is fixing, the both sides of the leading foot placed side 13 of each pcb board fixed bit 11 correspondence are respectively provided with one first magnetic part 14, the second magnetic parts 21 and the corresponding setting of the first magnetic part 14.
A certain or all embodiment based on the utility model, the bottom of this pcb board fixed bit 11 is hollow out setting, and abundant heat transfer is convenient in the setting of hollow out, can improve the efficiency of welding on the one hand, has avoided on the other hand rosin joint.
At the utility model, in a certain or all embodiment, for position limiting structure pcb board 31 being fixed on pcb board holder 10, be step 12 or the raised line that is arranged on pcb board fixed bit 11 edges.The utility model one step 12 is for example describes, and can realize with the raised line of step 12 same purposes or other structures also in protection range of the present utility model.
A certain or all embodiment based on the utility model, in order to guarantee that clamping provides operating space when manually placing pcb board 31 or automatically placing pcb board 31, two relative edges at pcb board fixed bit 11 are provided with port 16, this port 16 is preferably arranged on two relative edges adjacent with leading foot placed side 13, and the arc that this port 16 can be as described in Figure also can be realized the shape of same function for other.
Based on the utility model, a certain or all embodiment offer installing hole (not shown) on leading foot placed side 13, the setting party of this installing hole the installation of leading foot alignment pin 15.
At the utility model, in a certain or all embodiment, the height of this leading foot alignment pin 15 is preferably less than or equal to 3mm, can either guarantee effectively fixing to leading foot 32, has avoided again leading foot alignment pin 15 too high and hinder welding.
At the utility model, in a certain or all embodiment, in order conveniently to make leading foot alignment pin 15 enter fast and accurately in the location hole arranging on leading foot 32, the end of this leading foot alignment pin 15 is preferably provided with taper guide angle.
At the utility model, in a certain or all embodiment, the surrounding of this leading foot placed side 13 also offers for picking and placeing clearance position 17.
At the utility model in a certain or all embodiment, this pcb board holder 10 and press strip 20 preferably adopt density antistatic material low, that thermal conductivity is high to make, adopt this type of material can effectively guarantee welding quality, avoid causing tin cream to melt not exclusively because of 11 heat absorptions of pcb board holder.This first magnetic part 14 and the second magnetic part 21 are preferably high temperature magnet.
The foregoing is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure transformation that utilizes the utility model specification and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.

Claims (10)

1. a reflow soldering fixture, is characterized in that, comprises pcb board holder and at least one press strip, wherein,
Described pcb board holder is provided with at least one for the fixing pcb board fixed bit of pcb board, the edge of described pcb board fixed bit is provided with the position limiting structure for described pcb board is fixed, a side at this pcb board fixed bit is provided with for placing the leading foot placed side of leading foot, in described leading foot placed side, be provided with the first magnetic part, on described leading foot placed side, be provided with the leading foot alignment pin for described leading foot is positioned;
In described press strip, be provided with the second magnetic part, described the first magnetic part makes described press strip be fixedly connected with pcb board holder with the second magnetic part magnetic absorption.
2. reflow soldering fixture as claimed in claim 1, is characterized in that, the naked surface spilling of described the first magnetic part is concordant with described leading foot placed side; The naked surface spilling of described the second magnetic part is concordant with the surface of described press strip.
3. reflow soldering fixture as claimed in claim 2, is characterized in that, the both sides of the leading foot placed side that described in each, pcb board fixed bit is corresponding are respectively provided with one first magnetic part, described the second magnetic part and the corresponding setting of the first magnetic part.
4. reflow soldering fixture as claimed in claim 1, is characterized in that, described pcb board fixed bit bottom is hollow out setting.
5. reflow soldering fixture as claimed in claim 4, is characterized in that, described position limiting structure is step or the raised line that is arranged on described pcb board fixed bit edge.
6. reflow soldering fixture as claimed in claim 5, is characterized in that, two relative edges of described pcb board fixed bit are provided with port.
7. reflow soldering fixture as claimed in claim 1, is characterized in that, offers for described leading foot alignment pin installing hole is installed on described leading foot placed side.
8. reflow soldering fixture as claimed in claim 7, is characterized in that, the height of described leading foot alignment pin is less than or equal to 3mm.
9. reflow soldering fixture as claimed in claim 8, is characterized in that, the end of described leading foot alignment pin is provided with taper guide angle.
10. reflow soldering fixture as in one of claimed in any of claims 1 to 9, is characterized in that, described leading foot placed side offers for picking and placeing clearance position.
CN201420272679.5U 2014-05-26 2014-05-26 Reflow soldering fixing device Active CN203912363U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420272679.5U CN203912363U (en) 2014-05-26 2014-05-26 Reflow soldering fixing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420272679.5U CN203912363U (en) 2014-05-26 2014-05-26 Reflow soldering fixing device

Publications (1)

Publication Number Publication Date
CN203912363U true CN203912363U (en) 2014-10-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420272679.5U Active CN203912363U (en) 2014-05-26 2014-05-26 Reflow soldering fixing device

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106449480A (en) * 2016-10-20 2017-02-22 广东美的制冷设备有限公司 Backflow tool, semiconductor encapsulation method, semiconductor encapsulating piece and air conditioner
CN111940863A (en) * 2020-06-24 2020-11-17 华羿微电子股份有限公司 Backflow carrier

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106449480A (en) * 2016-10-20 2017-02-22 广东美的制冷设备有限公司 Backflow tool, semiconductor encapsulation method, semiconductor encapsulating piece and air conditioner
CN106449480B (en) * 2016-10-20 2019-12-06 广东美的制冷设备有限公司 Reflow tool, semiconductor packaging method, semiconductor packaging piece and air conditioner
CN111940863A (en) * 2020-06-24 2020-11-17 华羿微电子股份有限公司 Backflow carrier
CN111940863B (en) * 2020-06-24 2022-02-25 华羿微电子股份有限公司 Backflow carrier

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