CN215864369U - Printed circuit board drying device - Google Patents
Printed circuit board drying device Download PDFInfo
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- CN215864369U CN215864369U CN202121968175.3U CN202121968175U CN215864369U CN 215864369 U CN215864369 U CN 215864369U CN 202121968175 U CN202121968175 U CN 202121968175U CN 215864369 U CN215864369 U CN 215864369U
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- oven body
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Abstract
The utility model discloses a printed circuit board drying device, which comprises an oven body, wherein one side of the oven body is provided with a hinged opening and closing door, a plurality of heating and cooling cavities capable of moving in parallel along the two sides vertical to the opening and closing door are arranged between the two sides in the oven body, the two sides vertical to the opening and closing door are provided with a flat cavity structure, one side of the lower end of each heating and cooling cavity is provided with a liquid inlet pipe, one side of the upper end of each heating and cooling cavity is provided with a liquid outlet pipe, the lower end of each heating and cooling cavity is provided with two symmetrically distributed directional rollers, the directional rollers and the liquid inlet pipes are arranged without being interfered with each other, the heating and cooling cavities move in parallel through the directional rollers, the installation height of the directional rollers is not higher than the auxiliary edge width of the printed circuit board, the installation width of the directional rollers is not more than the thickness of the heating and cooling cavity, and one side of the oven body, which is opposite to the opening and closing door, is provided with an exhaust fan; the utility model has the advantages of good drying effect, high cooling efficiency and convenient use.
Description
Technical Field
The utility model belongs to the technical field of printed circuit board production equipment, and particularly relates to a printed circuit board drying device.
Background
Drying the printed circuit board can eliminate internal stress and stabilize the size, improve the warping degree of the circuit board, dry moisture in the bonding pad, strengthen the welding effect, reduce the false welding rate, repair rate and the like.
The existing drying modes of the printed circuit board are mostly placed in a flat-lying mode, in order to improve the drying efficiency, 30-40 pieces of the printed circuit board are generally stacked up and down and then placed in an oven for drying, and the problems of high overall external drying speed, low central drying speed and poor drying effect caused by different internal and external drying speeds in the drying process exist; after drying, the drying oven needs to be opened within 10 minutes, the printed circuit board is taken out to be placed flatly and naturally cooled, and a plate bending prevention jig needs to be pressed in the cooling process so as to prevent the printed circuit board from warping in the cooling process, and similarly, the problem of low overall cooling efficiency caused by different internal and external cooling speeds exists; in order to solve the above problems, it is necessary to develop a drying apparatus for a printed circuit board.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides the printed circuit board drying device which is good in drying effect, high in cooling efficiency and convenient to use.
The purpose of the utility model is realized as follows: a printed circuit board drying device comprises an oven body, wherein one side of the oven body is provided with a hinged opening and closing door, a plurality of heating and cooling cavities which can move in parallel along the two sides vertical to the opening and closing door are arranged between the two sides vertical to the opening and closing door in the oven body, the heating and cooling cavity is of a flat cavity structure, one side of the lower end of the heating and cooling cavity is provided with a liquid inlet pipe, a liquid outlet pipe is arranged on one side of the upper end of the heating and cooling cavity, two symmetrically distributed directional rollers are arranged on the lower end of the heating and cooling cavity, the directional roller and the liquid inlet pipe are arranged without mutual interference, the heating and cooling cavity moves in parallel through the directional roller, the installation height of the directional roller is not higher than the width of the auxiliary edge of the printed circuit board, the installation width of the directional roller is not more than the thickness of the heating and cooling cavity, and an exhaust fan is arranged on one side, opposite to the opening and closing door, of the oven body.
Preferably, a groove matched with the width of the roller of the directional roller is dug at the bottom in the oven body, and the directional roller can move in parallel along the groove so as to realize the parallel movement of the heating and cooling cavity.
Further preferably, the installation height of the orientation roller exposed out of the groove is not higher than the width of the auxiliary edge of the printed circuit board.
Preferably, the working surface of the heating and cooling cavity is not smaller than the external dimension of the printed circuit board.
Preferably, the lower end surface of the oven body is provided with a long waist hole a matched with the parallel movement track of the liquid inlet pipe, the liquid inlet pipe extends out of the oven body through the long waist hole a, the upper end surface of the oven body is provided with a long waist hole B matched with the parallel movement track of the liquid outlet pipe, and the liquid outlet pipe extends out of the oven body through the long waist hole B.
Preferably, the liquid inlet pipe and the liquid outlet pipe are arranged in a staggered manner and then are respectively positioned at two opposite angle positions at the lower end and the upper end of the heating and cooling cavity.
Preferably, the liquid inlet pipes extend out of the oven body, and then, miniature chains A with equal length are connected between two adjacent liquid inlet pipes, and the liquid outlet pipes extend out of the oven body, and then, miniature chains B with equal length to the miniature chains A are connected between two adjacent liquid outlet pipes.
Preferably, a plurality of electric telescopic rods which are uniformly distributed penetrate through one side of the oven body, which is perpendicular to the switch door, and the inner ends of the electric telescopic rods penetrate through the oven body and are fixedly connected to the side face of the heating and cooling cavity which is closest to the inner end of the oven body.
Due to the adoption of the technical scheme, the utility model has the beneficial effects that: according to the utility model, the plurality of heating and cooling cavities capable of moving in parallel are adopted, the plurality of heating and cooling cavities are in a heating working state after being separated by a certain distance during drying, and the printed circuit board to be dried leans against the side surfaces of the heating and cooling cavities, so that the surface of the circuit board can be uniformly heated, the circuit boards are not stacked, and the drying effect is good; when in cooling, the plurality of heating and cooling cavities tightly press the dried printed circuit board between the heating and cooling cavities under the action of the electric telescopic rod, and the heating and cooling cavities are in a cooling working state, so that the heat loss on the surface of the circuit board is uniform, and the cooling efficiency is high; the heating and cooling cavity can select two working states of heating or cooling according to requirements, so that the drying and cooling of the printed circuit board can be completed by using the same set of device, and the use is convenient; in summary, the utility model has the advantages of good drying effect, high cooling efficiency and convenient use.
Drawings
Fig. 1 is a first schematic view of the present invention.
Fig. 2 is a second schematic view of the present invention (drying operation).
Fig. 3 is a schematic diagram of the front view structure of the present invention (cooling operation state).
Fig. 4 is a partial front view structural schematic diagram of the relative position relationship of the heating and cooling cavity, the directional roller, the groove and the oven body.
FIG. 5 is a schematic side view of the relative positions of the heating and cooling chamber, the liquid inlet pipe, the liquid outlet pipe and the directional rollers.
Fig. 6 is a schematic top view of the present invention.
In the figure: 1. oven body 2, switch door 3, air exhauster 4, heating cooling chamber 5, directional gyro wheel 6, feed liquor pipe 7, miniature chain A8, printed circuit board 9, electric telescopic handle 10, miniature chain B11, drain pipe 12, recess 13, long waist hole B14, long waist hole A.
Detailed Description
Please understand that, the auxiliary edge of the printed circuit board is a process auxiliary frame additionally added to the periphery of the actually processed printed circuit board for facilitating the processing of the printed circuit board, and the actually processed printed circuit board is obtained by cutting off the auxiliary frame after the processing is completed.
The technical scheme of the utility model is further specifically described below with reference to the accompanying drawings.
As shown in fig. 1, 2, 3, 4, 5 and 6, the utility model provides a printed circuit board drying device, which comprises an oven body 1, wherein one side of the oven body 1 is provided with a hinged opening and closing door 2, a plurality of heating and cooling cavities 4 capable of moving in parallel along the two sides perpendicular to the opening and closing door 2 are arranged between the two sides perpendicular to the opening and closing door 2 in the oven body 1, the heating and cooling cavities 4 are in a flat cavity structure, one side of the lower end of each heating and cooling cavity 4 is provided with a liquid inlet pipe 6, one side of the upper end of each heating and cooling cavity 4 is provided with a liquid outlet pipe 11, the lower end of each heating and cooling cavity 4 is provided with two symmetrically distributed directional rollers 5, the directional rollers 5 and the liquid inlet pipe 6 are arranged without mutual interference, the heating and cooling cavities 4 move in parallel through the directional rollers 5, the installation height of each directional roller 5 is not higher than the auxiliary edge width of the printed circuit board 8, the installation width of each directional roller 5 is not more than the thickness of the heating and cooling cavity 4, an exhaust fan 3 is arranged on one side of the oven body 1 opposite to the switch door 1.
Preferably, the bottom in the oven body 1 is dug and is equipped with the recess 12 that matches the gyro wheel width setting of directional gyro wheel 5, thereby directional gyro wheel 5 can be followed recess 12 parallel translation and realize the parallel translation of heating cooling chamber 4, and recess 12 is used for further spacing directional gyro wheel 5's parallel translation, guarantees that heating cooling chamber 4 work is smooth and easy.
It is further preferred that the mounting height of the orientation roller 5 exposed outside the recess 12 is not higher than the width of the auxiliary edge of the printed circuit board 8, in order to ensure effective drying and cooling of the printed circuit board 8.
Preferably, the working surface of the heating and cooling cavity 4 is not smaller than the overall dimension of the printed circuit board 8, so that the drying effect and the cooling efficiency of the printed circuit board 8 are effectively ensured.
Preferably, long waist hole A14 that matches the setting of the parallel translation orbit of feed liquor pipe 6 is seted up to the lower terminal surface of oven body 1, and outside feed liquor pipe 6 stretched out oven body 1 through long waist hole A14, the long waist hole B13 that matches the setting of 11 parallel translation orbits of drain pipe was seted up to the up end of oven body 1, and drain pipe 11 stretches out oven body 1 through long waist hole B13 outside.
Preferably, the liquid inlet pipe 6 and the liquid outlet pipe 11 are arranged in a staggered manner and located at two diagonal positions at the lower end and the upper end of the heating and cooling cavity 4, respectively, so that the introduced liquid flows through the whole heating and cooling cavity 4 as much as possible.
Further preferably, the liquid inlet pipes 6 extend out of the oven body, and the two adjacent liquid inlet pipes 6 are connected with miniature chains A7 with the same length, and the liquid outlet pipes 11 extend out of the oven body 1, and the two adjacent liquid outlet pipes 11 are connected with miniature chains B10 with the same length as the miniature chains A7.
Preferably, a plurality of electric telescopic rods 9 which are uniformly distributed are arranged on one side of the oven body 1 perpendicular to the switch door 2 in a penetrating manner, and the inner end of the electric telescopic rod 9 penetrates through the oven body 1 and is fixedly connected to the side face of the heating and cooling cavity 4 which is closest to the inner end of the oven body.
When the drying oven is actually used, the switch door 2 is opened, the electric telescopic rods 9 are simultaneously started until the heating and cooling cavities 4 are mutually stretched to the state that the miniature chain A7 and the miniature chain B10 are stretched straight, then the printed circuit boards 8 with drying are sequentially placed between the heating and cooling cavities 4, the lower ends of the printed circuit boards 8 are lapped on the inner bottom surface of the oven body 1, the upper ends of the printed circuit boards 8 are lapped on the side surfaces of the heating and cooling cavities 4, the printed circuit boards 8 are in a slightly inclined state, the switch door 2 is closed after the printed circuit boards 8 are placed among all the heating and cooling cavities 4, the exhaust fan 3 is started, high-temperature liquid is introduced from the liquid inlet pipe 6, and the printed circuit boards 8 are uniformly dried when the high-temperature liquid flows through the heating and cooling cavities 4 and flow out from the liquid outlet pipe 11; after drying, stopping introducing high-temperature liquid, starting the plurality of electric telescopic rods 9 at the same time until the plurality of heating and cooling cavities 4 and the plurality of printed circuit boards 8 between the heating and cooling cavities are integrally and tightly pressed on the side wall of the oven body 1, introducing cooling liquid from the liquid inlet pipe 6, and uniformly taking away heat of the printed circuit boards 8 when the cooling liquid flows through the heating and cooling cavities 4 so as to uniformly cool the printed circuit boards; after cooling, the exhaust fan 3 is closed, the switch door 3 is opened, the electric telescopic rods 9 are started simultaneously, until the heating and cooling cavities 4 are mutually stretched to the stretching state that the miniature chain A7 and the miniature chain B10 are stretched, the printed circuit board 8 is taken out in sequence, and the switch door 3 is closed.
In conclusion, the heating and cooling cavities 4 capable of moving in parallel are adopted, the heating and cooling cavities 4 are in a heating working state after being separated by a certain distance during drying, and the printed circuit board 8 to be dried leans against the side faces of the heating and cooling cavities 4 in an inclined mode, so that the surface of the circuit board can be uniformly heated, the circuit boards are not stacked, and the drying effect is good; when in cooling, the plurality of heating and cooling cavities 4 tightly press the dried printed circuit board 8 between the heating and cooling cavities 4 under the action of the electric telescopic rod 9, and the heating and cooling cavities 4 are in a cooling working state, so that the surface heat of the circuit board can be uniformly lost, and the cooling efficiency is high; the heating and cooling cavity 4 can select two working states of heating or cooling according to requirements, so that the drying and cooling of the printed circuit board 8 can be completed by using the same set of device, and the use is convenient; in summary, the utility model has the advantages of good drying effect, high cooling efficiency and convenient use.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The utility model provides a printed circuit board drying device, includes oven body, one side of oven body sets up to articulated switch door, its characterized in that: the oven is characterized in that a plurality of heating and cooling cavities capable of moving in parallel along the vertical direction are arranged between two sides of the opening and closing door and are in a flat cavity structure, a liquid inlet pipe is arranged on one side of the lower end of each heating and cooling cavity, a liquid outlet pipe is arranged on one side of the upper end of each heating and cooling cavity, two symmetrically-distributed directional rollers are arranged at the lower end of each heating and cooling cavity, the directional rollers and the liquid inlet pipe are arranged in a mutually-noninterfere mode, the heating and cooling cavities move in parallel through the directional rollers, the mounting heights of the directional rollers are not higher than the auxiliary edge width of a printed circuit board, the mounting widths of the directional rollers are not more than the thickness setting of the heating and cooling cavities, and an exhaust fan is arranged on one side of the oven body, which is opposite to the opening and closing door.
2. The printed circuit board drying apparatus according to claim 1, wherein: and a groove matched with the width of the roller of the directional roller is dug at the bottom in the oven body, and the directional roller can move in parallel along the groove so as to realize the parallel movement of the heating and cooling cavity.
3. The printed circuit board drying apparatus according to claim 2, wherein: the installation height of the directional roller exposed out of the groove is not higher than the width of the auxiliary edge of the printed circuit board.
4. The printed circuit board drying apparatus according to claim 1, wherein: the working surface of the heating and cooling cavity is not smaller than the overall dimension of the printed circuit board.
5. The printed circuit board drying apparatus according to claim 1, wherein: the lower end face of the oven body is provided with a long waist hole A matched with the parallel moving track of the liquid inlet pipe, the liquid inlet pipe extends out of the oven body through the long waist hole A, the upper end face of the oven body is provided with a long waist hole B matched with the parallel moving track of the liquid outlet pipe, and the liquid outlet pipe extends out of the oven body through the long waist hole B.
6. The printed circuit board drying apparatus according to claim 1, wherein: the liquid inlet pipe and the liquid outlet pipe are arranged in a staggered mode relatively and then are located at two opposite angle positions of the lower end and the upper end of the heating and cooling cavity respectively.
7. The printed circuit board drying apparatus according to claim 6, wherein: the liquid inlet pipe stretches out and all is connected with isometric miniature chain A between adjacent two of this external back of oven liquid inlet pipe, the drain pipe stretches out this external back of oven all is connected with between adjacent two of the drain pipe with miniature chain B isometric of miniature chain A.
8. The printed circuit board drying apparatus according to claim 1, wherein: a plurality of electric telescopic rods which are uniformly distributed are arranged on one side of the oven body, which is perpendicular to the switch door, in a penetrating manner, and the inner ends of the electric telescopic rods penetrate through the oven body and are fixedly connected to the side face of the heating and cooling cavity which is closest to the oven body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121968175.3U CN215864369U (en) | 2021-08-20 | 2021-08-20 | Printed circuit board drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121968175.3U CN215864369U (en) | 2021-08-20 | 2021-08-20 | Printed circuit board drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215864369U true CN215864369U (en) | 2022-02-18 |
Family
ID=80240905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121968175.3U Active CN215864369U (en) | 2021-08-20 | 2021-08-20 | Printed circuit board drying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215864369U (en) |
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2021
- 2021-08-20 CN CN202121968175.3U patent/CN215864369U/en active Active
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