WO2012157823A1

WO2012157823A1 - Insulation body for reflow device

Info

Publication number: WO2012157823A1
Application number: PCT/KR2011/008238
Authority: WO
Inventors: 츠루가카츠미
Original assignee: 진우통상(주)
Priority date: 2011-05-19
Filing date: 2011-11-01
Publication date: 2012-11-22
Also published as: JP3170508U; CN102892541A; KR101116187B1; KR20110126091A

Abstract

The present invention relates to an insulating body for a reflow device, and more specifically, to an insulating body for a reflow device comprising: an insulating material for blocking the entrance/exit of heat; an outer skin enshrouding the insulation material; and an attachment/detachment means provided on the outer skin to enable attachment/detachment of the insulating material on the reflow device for implementing on a substrate and brazing a component. The insulating body has superior insulating, adiabatic, anti-shatter, and shape maintenance effects compared to a conventional insulating material.

Description

Thermostat for reflow device.

The present invention relates to a heat insulator for a reflow apparatus, and more particularly, to an insulator for blocking heat entry and exit, and to a reflow apparatus for soldering a component by mounting a component on an outer surface and a substrate surrounding the insulator. It relates to a heat insulating body for a reflow device, characterized in that it comprises a detachable means provided on the outside of the outer shell to be detachable.

The reflow apparatus is a device in which a creamy solder is printed on a portion to be joined in a manufacturing process of a printed circuit board and melted to solder. In the reflow apparatus, there is a hot heating furnace having a soldering temperature set. When solder and electronic components are mounted on the printed circuit wiring board and passed through the heating furnace, the solder melts to transfer the electronic components to the printed circuit wiring board. Will be connected.

The internal temperature of the furnace for soldering is about 200 ° C., which consumes a lot of power and time. Therefore, maintaining the temperature properly is a very critical task for cost savings and time savings.

Conventionally, as a method for heating and maintaining a heating furnace at the above temperature, a heat insulating material made of synthetic resin is used or aluminum is deposited on the outside of the heat insulating material made of synthetic resin. However, the heat insulating material as described above is composed of only a synthetic resin material, there is a problem that the heat and heat dissipation effect is not sufficiently exhibited, it is not easy to use.

The present invention is to solve the above problems,

First, increase the insulation effect by blocking the air flow of the insulation,

Secondly, it generates electricity cost reduction effect using only insulation material without a separate heat source,

Third, to prevent the scattering of the insulating material to maintain its shape for a long time,

Provides convenience of installation by enabling installation without separate tools without disconnecting wiring connections of nets and reflow devices.

Fifth, in cooperation with the cooling system to lower the temperature in the furnace,

Finally, to be able to add a thermal insulation member or a heat insulating material separately, to be able to increase the heat insulation effect fluidly.

In order to achieve the above object, the present invention, the heat insulating material for blocking heat entry and exit; and the outer shell surrounding the heat insulating material; and the outer shell so that the heat insulating material is detachable to the reflow apparatus for soldering process by mounting the component on the substrate Desorption means provided in; characterized in that comprises a.

In addition, the outer shell is characterized in that it further comprises; a thermal insulation member for increasing the thermal insulation effect.

In addition, the air inlet formed to penetrate the insulator for the reflow device to introduce external air into the reflow device; And an air outlet formed through the insulator for the reflow device to allow the internal air to flow out of the reflow device.

The apparatus may further include a ventilation control unit configured to be openable and closed to reversibly block the inflow and outflow of air from the reflow apparatus.

On the other hand, the outer shell is made of a glass fiber material, but the upper end of the outer shell contains a silicon mixture composed of silica (silica) and octamethylcyclotetrasiloxane (octamethylcyclotetrasiloxane), the thickness of the outer shell is characterized in that 10 to 30 mm It is done.

According to the invention,

First, the outer shell is wrapped around the insulating material can block the air flow of the insulating material can increase the warming effect and heat dissipation effect,

Third, by preventing the scattering phenomenon of the insulation by the outer shell of the insulation to maintain its shape for a long time, easy to apply according to the shape of the heating furnace, it is possible to repeatedly detachable,

Fourth, it is not necessary to disconnect the wiring of the reflow device, so it is possible to have a long time without any tools.

Fifth, in cooperation with the cooling system can lower the temperature in the furnace,

Sixth, it is possible to fluidly increase the heat insulation effect by adding a separate heat insulating member or heat insulating material in the outer shell.

Figure 1a is a perspective view showing an embodiment of the present invention from above.

Figure 1b is a perspective view showing one embodiment of the present invention from the bottom.

2 is a front view of a reflow apparatus to which an embodiment of the present invention is applied.

Figure 3 is a front view of a reflow apparatus to which another embodiment of the present invention is applied.

Figure 4 is a front view of a reflow apparatus to which another embodiment of the present invention is applied.

Hereinafter, with reference to the accompanying drawings, a thermostat for a reflow apparatus according to an embodiment of the present invention will be described in detail. First, in the drawings, the same components or parts are to be noted that as indicated by the same reference numerals as possible.

The present invention is largely configured as shown in Figures 1 to 3, including a heat insulating material 100, the outer shell 200, the removable means 300.

First, the heat insulating material 100 is demonstrated. The heat insulator is heated inside the furnace in the process of maintaining the temperature and heating the temperature of the furnace to about 200 ° C. in order to mount and solder the electronic component on the upper part of the printed circuit board during the manufacturing process of the PCB. It serves to block heat entry and exit. In general, the heat insulating material may be a heat insulating material according to the glass wool manufacturing method for compression molding by adding a binder to the short fiber of the glass fiber. However, since the binder is easily decomposed by the temperature and the shape may be disturbed, it is more preferable to use a heat insulating material according to a glass fiber manufacturing method for weaving long fibers in the glass fiber without using a binder. The heat insulating material according to the glass fiber manufacturing method has no advantage of dense, scattering, etc. of the fiber itself, excellent heat insulation and thermal insulation, there is less concern about environmental pollution by dust and the like.

Next, the outer shell 200 will be described. The envelope 200 surrounds the heat insulating material 100. That is, the envelope 200 may be made in various shapes to easily put the heat insulating material 100 therein, such as a bag or a paper bag shape, and put the heat insulating material 100 in the outer shell 200, fasteners, magnets It can be manufactured by sewing with Velcro tape, double-sided tape, snap, hook, knot or special sewing thread. The outer shell 200 serves to prevent the phenomenon that the thermal insulation material 100 is scattered while deteriorating for a long time, and to improve the thermal insulation and thermal insulation effect. When the insulation 100 is used alone, the internal flow of the reflow apparatus is lost by about 50% due to the distribution of air, but the heat loss rate is reduced to less than about 5% by wrapping the insulation 100 with the shell 200. do.

The outer shell 200 is preferably made of glass fiber. The outer shell 200 is made of glass fiber because the heat resistance temperature of the glass fiber reaches about 800 ° C. and the thermal conductivity is 1 or less, thereby effectively circulating air. Because it blocks.

On the other hand, the top of the shell 200 is preferably prepared by further containing a silicon mixture. The silicon mixture is composed of silica and octamethylcyclotetrasiloxane, and the content of the silica and octamethylcyclotetrasiloxane is greater than the total weight of the top of the shell 200. Particularly preferred is about 10 to 20 Wt% for the silica, about 0.1 to 1 Wt% for the octamethylcyclotetrasiloxane. This is because when the silicone mixture is contained in the ratio, heat can be more effectively prevented from being conducted or transmitted through the upper end of the shell 200, which is the opposite side of the contact surface of the reflow apparatus.

In addition, the thickness of the shell 200 is preferably manufactured to about 10 to 30 mm. This is because the most effective thermal insulation and insulation effect is exhibited at the thickness.

In addition, the outer shell 200 may be configured to further include a thermal insulation member 210 to increase the thermal insulation effect. The insulating member 210 may be implemented by forming a pocket 220 in the outer shell 200 and mounting it therein, according to the temperature profile of the component to be soldered by the introduction of the insulating member 210. By appropriately selecting and using the thickness and type of the thermal insulation member 210, it will be possible to give an optimal thermal insulation and heat insulation effect to the outer shell (200). The insulating member 210 may utilize a variety of materials having a heating function, such as a film heater that can be used as a power source function by heat source accumulation, and if the thermal insulation temperature is to be further increased, the insulating member 210 may be further used. Can be.

In addition, the outer shell 200 may further include a connection member 230 for connecting the insulators for the reflow apparatus. The connection member 230 may use a variety of materials, such as fasteners, magnets, Velcro tape, double-sided tape, snaps, hooks, knots, etc., the interval between the insulation body for the reflow device by the introduction of the connection member 230 It is effective to eliminate the heat, and more effectively prevent the heat discharge from the furnace.

On the other hand, the detaching means 300 is provided on the outer shell 200 so that the heat insulating material 100 can be easily detached to the reflow device that is soldered by mounting a component on a substrate. The detachable means 300 may utilize a variety of detachable means commonly used, such as fasteners, magnets, Velcro tape, double-sided tape, snaps, hooks, knots.

Meanwhile, the present invention may further include an air inlet 400, an air outlet 500, and a ventilation control unit 600 as shown in FIG. 4.

The air inlet 400 is formed through the insulator for the reflow device to introduce external air into the reflow device. In addition, the air outlet 500 is formed through the insulating body for the reflow device in order to outflow the internal air from the reflow device. That is, when the air inlet 400 and the air outlet 500 rapidly cool the heating furnace of the reflow apparatus, the movement of the air so that the low temperature outside air is rapidly introduced and the high temperature internal air is quickly flowed out. It is a passage.

In addition, the ventilation control unit 600 is configured to open and close to reversibly block external air inflow or internal air outflow from the reflow apparatus. The ventilation control unit 600 is open when the air inlet is desired through the air inlet unit 400 or the air outlet unit 500 in the insulator for the reflow device of the present invention, when the air inlet is to be blocked It is characterized in that the reversible opening and closing means to be closed. The most preferable form is a zipper, the portion corresponding to the air inlet 400 or the air outlet 500 in the insulator for the reflow device is combined to be removable, but fasteners, magnets, Velcro tape, double-sided tape Various means of inspection may be utilized, such as snaps, hooks, and knots.

In the foregoing description, optimal embodiments have been disclosed in the drawings and the specification. Although specific terms have been used herein, they are used only for the purpose of describing the present invention and are not used to limit the scope of the present invention as defined in the meaning or claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims

Insulation material to block heat entry; And

Outer shell surrounding the insulation; and

And a desorption means provided in the outer shell so that the heat insulating material is detachable to the reflow device that is soldered by mounting a component on a substrate.
The method of claim 1,

The outer shell is a thermal insulation member for increasing the thermal insulation effect; the thermal insulation for a reflow device, characterized in that it further comprises.
The method according to claim 2,

An air inlet formed through the insulator for the reflow device to introduce external air into the reflow device;

And an air outlet formed through the insulator for reflow device to allow the internal air to flow out of the reflow device.
The method of claim 3, wherein

And a ventilation controller configured to be openable and closed to reversibly block air from the reflow apparatus.
The method of claim 1,

The outer shell is composed of a glass fiber material, the upper end of the outer shell contains a silicone mixture composed of silica (silica) and octamethylcyclotetraoxane (octamethylcyclotetrasiloxane), the thickness of the outer shell is characterized in that 10 to 30 mm Thermostat for reflow device.