CN205309501U - Heating cabinet of circuit board backward flow stove and cowling panel of heating cabinet - Google Patents
Heating cabinet of circuit board backward flow stove and cowling panel of heating cabinet Download PDFInfo
- Publication number
- CN205309501U CN205309501U CN201521140612.7U CN201521140612U CN205309501U CN 205309501 U CN205309501 U CN 205309501U CN 201521140612 U CN201521140612 U CN 201521140612U CN 205309501 U CN205309501 U CN 205309501U
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- CN
- China
- Prior art keywords
- heating
- cowling panel
- circuit board
- zone
- panel
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- Expired - Fee Related
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Abstract
The utility model discloses a heating cabinet of circuit board backward flow stove and cowling panel of heating cabinet. The heating cabinet includes the box, fan and cowling panel, and the cowling panel package rubbing board body, the plate body include planking, inner panel and zone of heating, the zone of heating clamp is between planking and inner panel, the plate body has a plurality of rectification holes, and the rectification hole pierces through planking, inner panel and zone of heating. The utility model discloses a cowling panel has a heating function, realizes convection heating and radiation heating simultaneously to the circuit board in the furnace chamber, and is effectual to the heating of circuit board, the during operation, cowling panel outward appearance temperature is high, and the scaling powder is difficult to the adhesion, and it is clean to be convenient for.
Description
[technical field]
This utility model relates to circuit board reflow ovens, particularly relates to adding hot tank and adding the cowling panel of hot tank of a kind of circuit board reflow ovens.
[background technology]
Traditional circuit board reflow ovens utilizes heating box to produce hot blast and in the way of hot air circulation, circuit board is heated, and by the air in heat-generating pipe heating compartment in heating box, then is transported in the furnace chamber of reflow ovens by hot-air with blower fan. In order to make to add hot tank air-out uniformly, the air outlet adding hot tank has a nugget genus cowling panel, cowling panel has many uniform apertures hot blast is carried out water conservancy diversion. The welding process of the circuit board on conveyer belt refers to circuit board tin cream on heater circuit plate under hot wind action, and scaling powder inspires tin cream fusing, and the effect finally by cooling blower makes circuit board temperature reduce, and tin cream solidifies, and completes welding process. And the such welding manner of Hot-blast Heating, being heated of circuit board is from surface to inner face transmission heating, such mode makes the tin cream on circuit board easily produce bubble in heating process, use welding that the phenomenon of rosin joint dry joint occurs, have a strong impact on product quality, according to incompletely statistics, with the bad product that this mode of bubble produces, about the 50% of all bad products is accounted for; Secondly, hot blast transmission thermal efficiency is low, caloric receptivity especially for the flexible circuit board being provided with frock clamp is very big, inefficient mode of heating directly results in circuit board, received heat is not enough, the phenomenons such as appearance local temperature is higher, cause the failure welding phenomenons such as circuit board deformation occur, have a strong impact on the quality of product; Again, cowling panel itself does not generate heat, and surface temperature does not reach gasification temperature needed for scaling powder so that scaling powder is easy to adhesion and condenses on cowling panel, and maintenance cleaning is extremely difficult.
[summary of the invention]
The technical problems to be solved in the utility model is to provide a kind of that circuit board heats is good, and the reflow ovens that scaling powder is not easy to adhere to adds hot tank cowling panel.
In order to solve above-mentioned technical problem, the technical solution adopted in the utility model is, a kind of circuit board reflow ovens adds the cowling panel of hot tank, and including plate body, described plate body includes outside plate, inner panel and zone of heating, and zone of heating is clipped between outside plate and inner panel;Plate body has a plurality of rectification hole, and rectification hole penetrates outside plate, inner panel and zone of heating.
Above-described cowling panel, zone of heating is electrothermal layer, and including the first insulating barrier, the second insulating barrier and heating wire group, heating wire group is clipped between the first insulating barrier and the second insulating barrier.
Above-described cowling panel, plate body includes a plurality of rivet, outside plate, inner panel and zone of heating to be passed through together with closing-up.
Above-described cowling panel, the outer surface of outside plate scribbles far infrared coating.
Above-described cowling panel, including binding post, binding post is fixed on inner panel, electrically connects with heating wire group.
A kind of circuit board reflow ovens add hot tank, be above-mentioned add hot tank cowling panel including casing, blower fan and the cowling panel described in cowling panel.
The circuit board reflow ovens of above-described circuit board reflow ovens add hot tank, including heat-generating pipe, heat-generating pipe is arranged in the air channel of casing.
Cowling panel of the present utility model has heating function, and the circuit board in furnace chamber realizes Convective Heating and radiation heating simultaneously, and the heats of circuit board is good; During work, cowling panel external skin temperatures is high, and scaling powder is not easy to adhere to, it is simple to cleaning.
[accompanying drawing explanation]
Below in conjunction with the drawings and specific embodiments, this utility model is described in further detail.
Fig. 1 is the profile of this utility model embodiment reflow ovens.
Fig. 2 is the front view that this utility model embodiment adds hot tank cowling panel.
Fig. 3 is the upward view that this utility model embodiment adds hot tank cowling panel.
Fig. 4 is the left view that this utility model embodiment adds hot tank cowling panel.
Fig. 5 is the partial enlarged drawing at I position in Fig. 4.
Fig. 6 is the exploded view that this utility model embodiment reflow ovens adds hot tank cowling panel.
[detailed description of the invention]
This utility model embodiment reflow ovens adds hot tank with the structure adding hot tank cowling panel as shown in Figures 1 to 6. Fig. 1 shows the cross-section structure of reflow ovens, two that include in FIG being mounted opposite up and down add hot tank, two structures adding hot tank are identical, all include casing 20, blower fan 21, heat-generating pipe 22 and cowling panel 23, blower fan 21 and heat-generating pipe 22 are arranged in casing 20, are arranged in air channel, and cowling panel 23 is arranged on the air port of casing 20.
Cowling panel 23 includes plate body and binding post 46, and plate body includes outside plate 41, inner panel 45 and zone of heating, and zone of heating is clipped between outside plate 41 and inner panel 45.
The outer surface of outside plate 41 is coated with far infrared coating.
Having many rivets 48 on plate body, outside plate 41, inner panel 45 and zone of heating are riveted together by rivet 48.
Having many rectification hole 47 on plate body, rectification hole 47 penetrates outside plate 41, inner panel 45 and zone of heating.
Zone of heating is electrothermal layer, and including insulating barrier 42, insulating barrier 44 and heating wire group 43, heating wire group 43 is clipped between insulating barrier 42 and insulating barrier 44.
Binding post 46 is fixed on inner panel 45, electrically connects with heating wire group 43.
This utility model is being that embodiment has the advantage that
The air adding hot tank air-out intracavity portion is flowed out by after the inner panel heating of cowling panel 23 from rectification hole again, and circuit board is heated by hot-air stream in the furnace chamber of reflow ovens; The hot-air that the outside plate of cowling panel 23 is directly by convection in furnace chamber heats again, and the circuit board in furnace chamber is produced heat radiation.
It is coated with the outside plate of far infrared coating, also having Far-infrared Heating function, Far-infrared Heating mode has and better has penetration power, heats inside and outside energy simultaneously, heat transfer medium is not needed to transmit, can directly passing on electronic circuit board with thermal-radiating form, heat up rapidly, the thermal efficiency be good, safety is good, solve common hot blast reflow ovens electronic circuit board is heated inwards by surface be heated uneven, shortage of heat, the problem of the welding bubble formation rosin joint dry joint that local temperature height causes.
Except the furnace chamber of reflow ovens can be heated by this utility model above example except above-mentioned samming far infrared heating cowling panel 23, adding the heat-generating pipe 22 in hot tank can also provide heating to the air of convection current in furnace chamber.According to the difference of circuit board, far infrared heating cowling panel 23 can being adopted to heat or the heat-generating pipe 22 that adds in hot tank heat, can switch between the two, it is achieved a multi-functional heating of machine, thus obtaining, various boards being heated optimum way.
Claims (7)
1. circuit board reflow ovens adds a cowling panel for hot tank, and including plate body, plate body has a plurality of rectification hole, it is characterised in that described plate body includes outside plate, inner panel and zone of heating, and zone of heating is clipped between outside plate and inner panel; Rectification hole penetrates outside plate, inner panel and zone of heating.
2. cowling panel according to claim 1, it is characterised in that zone of heating is electrothermal layer, including the first insulating barrier, the second insulating barrier and heating wire group, heating wire group is clipped between the first insulating barrier and the second insulating barrier.
3. cowling panel according to claim 1, it is characterised in that plate body includes a plurality of rivet, outside plate, inner panel and zone of heating to be passed through together with closing-up.
4. cowling panel according to claim 1, it is characterised in that the outer surface of outside plate scribbles far infrared coating.
5. cowling panel according to claim 1, it is characterised in that include binding post, binding post is fixed on inner panel, electrically connects with heating wire group.
6. circuit board reflow ovens add a hot tank, including casing, blower fan and cowling panel, it is characterised in that described cowling panel is the cowling panel in claim 1 to 5 described in any claim.
7. circuit board reflow ovens according to claim 6 add hot tank, it is characterised in that including heat-generating pipe, heat-generating pipe is arranged in the air channel of casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521140612.7U CN205309501U (en) | 2015-12-31 | 2015-12-31 | Heating cabinet of circuit board backward flow stove and cowling panel of heating cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521140612.7U CN205309501U (en) | 2015-12-31 | 2015-12-31 | Heating cabinet of circuit board backward flow stove and cowling panel of heating cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205309501U true CN205309501U (en) | 2016-06-15 |
Family
ID=56200490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521140612.7U Expired - Fee Related CN205309501U (en) | 2015-12-31 | 2015-12-31 | Heating cabinet of circuit board backward flow stove and cowling panel of heating cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205309501U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110125509A (en) * | 2019-04-10 | 2019-08-16 | 浙江登新科技有限公司 | Heating structure in reflow machine |
-
2015
- 2015-12-31 CN CN201521140612.7U patent/CN205309501U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110125509A (en) * | 2019-04-10 | 2019-08-16 | 浙江登新科技有限公司 | Heating structure in reflow machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160615 Termination date: 20191231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |