CN203492269U

CN203492269U - Baking box of PCB

Info

Publication number: CN203492269U
Application number: CN201320517990.7U
Authority: CN
Inventors: 肖裕金
Original assignee: LONGYAN JINSHIYU ELECTRONIC Co Ltd
Current assignee: LONGYAN JINSHIYU ELECTRONIC Co Ltd
Priority date: 2013-08-23
Filing date: 2013-08-23
Publication date: 2014-03-19
Anticipated expiration: 2023-08-23

Abstract

The utility model provides a baking box of a PCB. The baking box of the PCB comprises a main box body which is usually a box body structure of inner and outer two layers of steel plates, the heat pipes are arranged between the inner and outer two layers of steel plates, and an air inlet connected with an air inlet duct is arranged in the middle of the top of the main box body. The baking box of the PCB also comprises a liner arranged in the main box body, the upper, lower, left and right inner walls of the liner are equipped with a plurality of air vents, and a ventilation space is arranged between the inner wall of the liner and the main box body. The ventilation space is also equipped with fans, the top of the main box body is equipped with at least two air outlets connected with the exhaust ducts, and the air outlets are arranged at the top end edge of the main box body. The baking box of the PCB of the utility model is more uniform in heat distribution, and enables the baking effect and quality to be improved.

Description

The baking box of pcb board

Technical field

The utility model relates to a kind of baking box of pcb board.

Background technology

Printed substrate (abbreviation pcb board), is important electronic unit, is the supporter of electronic devices and components.In the pcb board course of processing, conventionally need to toast pcb board, so that the stress of substrate is fully lax, thereby reduce the buckling deformation of substrate in PCB processing procedure.

The baking box that pcb board baking at present adopts comprises a main box, and the normally inside and outside double-layer plate body structure of main box, is provided with heat pipe between inside and outside double-layer plate, after the air in baking box is heated, pcb board is toasted.When pcb board is toasted, the circulation cycle of air is very important, therefore need offer air inlet duct and exhausting duct at the top of main box, the air of coming in from air inlet duct flows through heat pipe heating Hou baking vessel, can toast the pcb board being placed in baking vessel, the waste gas producing after overbaking can be discharged from through exhausting duct again.

The air outlet quantity of the exhausting duct of current baking box is only one, and and the exhaust outlet of air inlet duct is located at main box crown center position in the lump, cause like this air intake inhomogeneous, temperature in baking vessel is also inhomogeneous, and easily just air intake is just not good from air outlet discharge ventilation effect, so affects cured effect and quality.

In addition, main box does not arrange timing alarm apparatus outward, can not timing alarm.

Summary of the invention

The technical problems to be solved in the utility model, is to provide a kind of baking box of pcb board, and heat distribution uniform improves cured effect and quality.

The utility model is achieved in that a kind of baking box of pcb board, comprise main box, the normally inside and outside double-layer plate body structure of this main box, between inside and outside double-layer plate, be provided with heat pipe, the crown center position of this main box arranges the air inlet of a connection air inlet duct, wherein: also comprise the inner bag of being located in main box, described inner bag upper, under, left, right inside wall is distributed with a plurality of ventilation holes, and be provided with airspace between the inwall of inner bag and main box, described airspace is also provided with fan, the top of described main box arranges the air outlet of at least 2 connection exhausting ducts, and air outlet is distributed in the top of main box.

Wherein, described air inlet duct and exhausting duct are provided with air lock.

Wherein, described main box connects a timing alarm apparatus, also has thermostat on described timing alarm apparatus.

The utility model has the advantage of: increase inner bag, form airspace, the upper and lower, left and right inwall of inner bag is distributed with a plurality of ventilation holes, can make air intake more even; Again air outlet is increased to more than two from one, make air intake more even.Air inlet duct and exhausting duct are provided with air lock, air intake more easy to control and air-out, and the setting of timing alarm apparatus, can be in regularly baking.

Accompanying drawing explanation

The utility model is further described with reference to the accompanying drawings in conjunction with the embodiments.

Fig. 1 is the external structure schematic diagram of the baking box of the utility model pcb board.

Fig. 2 is the internal structure schematic diagram of the baking box of the utility model pcb board.

Embodiment

Refer to shown in Fig. 1 and Fig. 2, the baking box of the utility model pcb board, comprise main box 1, the normally inside and outside double-layer plate body structure of this main box 1, between inside and outside double-layer plate 11, be provided with heat pipe 12, the crown center position of this main box 1 arranges the air inlet 14 of a connection air inlet duct 13, wherein: also comprise the inner bag 2 of being located in main box 1, space in inner bag 2 is baking vessel, described inner bag 2 upper, under, left, right inside wall is distributed with a plurality of ventilation holes 21, in inner bag 2, be also provided with layer frame 22, and between the inwall of inner bag 2 and main box, be provided with airspace 3, described airspace 3 is also provided with fan 4, the top of described main box 1 arranges the air outlet 16 of at least 2 connection exhausting ducts 15, and air outlet 16 is distributed in the top of main box 1.

Wherein, described air inlet duct 13 and exhausting duct 15 are provided with air lock 17.Described main box 1 connects a timing alarm apparatus 5, also has thermostat 6, for controlling the temperature of baking vessel on described timing alarm apparatus 5.

Although more than described embodiment of the present utility model; but being familiar with those skilled in the art is to be understood that; our described specific embodiment is illustrative; rather than for the restriction to scope of the present utility model; those of ordinary skill in the art are in equivalent modification and the variation done according to spirit of the present utility model, all should be encompassed in the scope that claim of the present utility model protects.

Claims

1. the baking box of a pcb board, comprise main box, this main box is inside and outside double-layer plate body structure, between inside and outside double-layer plate, be provided with heat pipe, the crown center position of this main box arranges the air inlet of a connection air inlet duct, it is characterized in that: also comprise the inner bag of being located in main box, described inner bag upper, under, left, right inside wall is distributed with a plurality of ventilation holes, and be provided with airspace between the inwall of inner bag and main box, described airspace is also provided with fan, the top of described main box arranges the air outlet of at least 2 connection exhausting ducts, and air outlet is distributed in the top of main box.

2. the baking box of pcb board as claimed in claim 1, is characterized in that: described air inlet duct and exhausting duct are provided with air lock.

3. the baking box of pcb board as claimed in claim 1, is characterized in that: described main box connects a timing alarm apparatus, also has thermostat on described timing alarm apparatus.