CN201312414Y - Plug-type kettle opening - Google Patents
Plug-type kettle opening Download PDFInfo
- Publication number
- CN201312414Y CN201312414Y CN 200820216451 CN200820216451U CN201312414Y CN 201312414 Y CN201312414 Y CN 201312414Y CN 200820216451 CN200820216451 CN 200820216451 CN 200820216451 U CN200820216451 U CN 200820216451U CN 201312414 Y CN201312414 Y CN 201312414Y
- Authority
- CN
- China
- Prior art keywords
- tin
- kou
- welding
- utility
- model
- Prior art date
- 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
Links
Images
Landscapes
- Cookers (AREA)
Abstract
The utility model relates to a tin furnace component for welding tin on PCBA plates, in particular to a plug-type kettle opening of a tin furnace. The mouth of the kettle opening is equipped with a conical socket, and at least one tin spilling opening is disposed at an edge of the conical socket, wherein the tin spilling opening is a rectangular hole with depth ranging from 3mm-4mm. The utility model with a simple structure is capable of effectively improving welding efficiency and is adaptable to large-scale automated production. Besides, the utility model can effectively prevent an oxide layer on a surface layer of tin liquids from remaining on the surface of the PCBA board, thereby guaranteeing the quality of welding spots.
Description
Technical field
The utility model relates to a kind of tin stove parts of the PCBA of being used for boards solder, especially a kind of plug-in type tin furnace kettle mouth.
Background technology
Common wave-soldering adopts manual operations usually, and production efficiency is lower, for the comparatively intensive PCBA plate of need pad, this welding manner is more inadequate, in addition, because stannum export too small (generally long 2 millimeters), can bring the obstruction of scruff, thereby cause the large tracts of land of rosin joint to produce Hu Kou; At the comparatively intensive PCBA plate of pad, the kettle of employing mouth structure is also arranged, but common tin furnace kettle mouth is flat mouthful design, in order to realize scolding tin operation to the PCBA plate, generally need maintenance distance once between PCBA plate and kettle mouth, guarantee to make tin liquor can the electric elements on the PCBA plate of top be welded on the one hand from the Hu Kou ejection, guarantee simultaneously can in time discharge Hu Kou from the tin liquor of Hu Kou ejection subsequently, prevent that the kettle mouth pressure is excessive, influence welding quality, but also there is fault of construction in this structure: when tin liquor when Hu Kou sprays, because the tin liquor of upper space is owing to directly contact the formation oxide layer with air, this part oxide layer at first contacts with the PCBA plate of top along with tin liquor is gushed out from Hu Kou, in the wings under the frontal impact of tin liquor, make this part oxide layer oppressed on PCBA plate face, be difficult for it being taken away, make oxide layer remain between solder joint and the PCBA plate, have a strong impact on welding quality by the kettle mouth tin liquor of gushing out subsequently.
Summary of the invention
In order to overcome the deficiency that above-mentioned various scolding tin exists, when especially adopting the intensive PCBA plate of the point-to-point wave-soldering butt welding point of automatic selectivity to weld, inefficiency, be unsuitable for extensive batch machining, and contact easily forms the deficiency of rosin joint, it is a kind of simple in structure that the utility model provides, and can effectively improve welding efficiency, guarantees the tin furnace kettle mouth of the quality of welded contact.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of insertion type pot opening, the oral area of described Hu Kou is provided with tapered spigot, is provided with at least one excessive Xi Kou at the edge of tapered spigot.
For the ease of the processing of the Xi Kou that overflows, guarantee the tin liquor Xi Kou outflow of can overflowing equably simultaneously, further: described excessive Xi Kou is a rectangle gap.
For the degree of depth of the Xi Kou that overflows rationally is set, cross shallow may rising and come the Xi Kou that overflows excessive tin effect should be arranged, cross may cause deeply tin liquor before the kettle mouth of emerging just from the Xi Kou outflow of overflowing, make the emerge height of Hu Kou of tin ripple on the low side, influence welding quality, more further: the degree of depth of described excessive Xi Kou is 3~6mm.
The existence of excessive Xi Kou can effectively change the flow direction of tin liquor behind ejection Hu Kou.After tin liquor sprays from Hu Kou, tin liquor can preferentially flow out from the Xi Kou that overflows, so just form certain tin stream that flows to, making the oxide layer of the superiors can directly do not impacted is adsorbed onto on the PCBA plate, even there is the partial oxidation layer to be adsorbed onto on the PCBA plate, can be washed away by the tin liquor that sprays from Hu Kou subsequently, having guaranteed can residual oxide layer not influence the soldering quality between scolding tin and PCBA plate yet; On the other hand, because surface tension, tin liquor upper surface in the kettle mouth is spherical shape, make under the not high situation of furnace pressure, may appear at kettle mouth edge and form rosin joint, influence welding quality, the existence of excessive Xi Kou, change the flow direction of kettle mouth tin liquor, made tin liquor can maximum possible cover the PCBA plate of kettle mouth top, guaranteed the adequacy and the fastness of welding.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the utility model kettle mouth structure schematic diagram.
Fig. 2 is the placement location schematic diagram of the utility model on the PCBA plate.
1. tapered spigot, 2. excessive tin mouth 3. electronic devices and components 4.PCBA plates among the figure
Embodiment
A kind of insertion type pot opening as shown in Figure 1, the oral area of described Hu Kou is provided with tapered spigot 1, is provided with at least one excessive tin mouth 2 at the edge of tapered spigot 1.Described excessive tin mouth 2 is a rectangular opening, and its degree of depth is 3~4mm.
As shown in Figure 2, Hu Kou described in the utility model is mainly used in the welding of the electronic devices and components 3 of short single lead-in wire.On this PCBA plate 4, the outside of single lead-in wire does not have other electronic devices and components 3 or far away relatively from getting, so that can not trickle to these electronic devices and components 3 from the tin liquor of tin mouth 1 outflow of overflowing.
During use, the PCBA plate is placed on the precalculated position of kettle mouth top, and board plane and kettle mouth stannum export are maintained a certain distance, generally be controlled at 2~4mm.The shape of Hu Kou can determine that Hu Kou is designed to rectangular shape usually according to the distribution situation of PCBA plate welding position, and its length is 6~11mm.For the welding position is irregular concentrated distribution, can adopt a plurality of rectangle Hu Kou to piece together required welding shape.Tin liquor keeps earlier certain liquid level to store in the kettle mouth 1~3 minute, the PCBA plate to be welded of top is carried out preheating, so that preceding operation is removed the oxide layer on the PCBA plate at the scaling powder generation chemical reaction of PCBA plate position to be welded spraying.Afterwards, the electronic startup of tin stove, push to Hu Kou by the tin liquor of exerting pressure the tin furnace interior, the continuous lifting of tin liquor face in the kettle mouth, and tin liquor ejects kettle mouth stannum export the most at last, contacts with the PCBA plate of top and welds, and is guaranteeing that tin liquor and PCBA plate fully weld, unnecessary tin liquor can be discharged from the Xi Kou that overflows, and takes away the oxide layer and the impurity of tin liquor top layer.At last, take off the PCBA plate, finish the welding of ground PCBA plate from kettle mouth top.
Because adopted kettle mouth method for designing flexibly, enlarged effective solder side, thereby made speed of welding fast on year-on-year basis more than three times with international " automatic selectivity welding tin stove ".
Because Hu Kou has adopted excessive tin mouth design, this scheme has just been removed the main scruff of welding quality and the oxide skin on tin liquor surface of influencing before welding, the qualification rate of welding is reached more than 99.9%.
Claims (3)
1. insertion type pot opening, it is characterized in that: the oral area of described Hu Kou is provided with tapered spigot (1), is provided with at least one excessive Xi Kou (2) at the edge of tapered spigot (1).
2. insertion type pot opening according to claim 1 is characterized in that: described excessive Xi Kou (2) is a rectangle gap.
3. insertion type pot opening according to claim 2 is characterized in that: the degree of depth of described excessive Xi Kou (2) is 3~6mm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200820216451 CN201312414Y (en) | 2008-11-25 | 2008-11-25 | Plug-type kettle opening |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200820216451 CN201312414Y (en) | 2008-11-25 | 2008-11-25 | Plug-type kettle opening |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201312414Y true CN201312414Y (en) | 2009-09-16 |
Family
ID=41109670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 200820216451 Expired - Fee Related CN201312414Y (en) | 2008-11-25 | 2008-11-25 | Plug-type kettle opening |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN201312414Y (en) |
-
2008
- 2008-11-25 CN CN 200820216451 patent/CN201312414Y/en not_active Expired - Fee Related
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN201312414Y (en) | Plug-type kettle opening | |
CN201115039Y (en) | Opposite open kettle mouth of tin overflow mouth | |
CN201312440Y (en) | Plug-type shortened kettle spout | |
CN201312413Y (en) | Plug-type short kettle opening with flange | |
CN201312416Y (en) | Outside block plug-type kettle opening | |
CN201312431Y (en) | Fixed-type shortened kettle spout | |
CN201312411Y (en) | Single-opened and semi-closed kettle opening | |
CN201115037Y (en) | Single open kettle mouth on wide side of tin overflow mouth | |
CN201312421Y (en) | Combined in-row-plugged kettle opening | |
CN201312408Y (en) | Spilling tin kettle opening with top-opened convex plate | |
CN201115036Y (en) | Single open kettle mouth on long side of tin overflow mouth | |
CN201312432Y (en) | Fixed kettle opening of kettle spout | |
CN201115040Y (en) | Double open kettle mouth on long side of tin overflow mouth | |
CN201115038Y (en) | Open kettle mouth at the corner of tin overflow mouth | |
CN201312439Y (en) | Fixed plug-type kettle spout | |
CN201312417Y (en) | Single-opened and full-closed type kettle opening | |
CN201312419Y (en) | Chip element avoiding single-opened kettle opening | |
CN101765306A (en) | External baffle insertion type pot opening | |
CN201115030Y (en) | Concave kettle mouth inside tin overflow hole | |
CN201115027Y (en) | Open L kettle mouth outside tin overflow hole | |
CN201312438Y (en) | Single-opening avoiding-type kettle spout | |
CN201312412Y (en) | Lengthened inserting-type kettle opening with resisting sides | |
CN201115026Y (en) | Open L kettle mouth inside tin overflow hole | |
CN201312420Y (en) | Single-row-plugged kettle opening | |
CN201312442Y (en) | Boss lateral tin-spilling kettle spout |
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: 20090916 Termination date: 20101125 |