KR100804266B1 - Heat fusing device and heat radiating method for the same - Google Patents

Abstract

A reflow soldering machine and a method of dissipating heat are provided to reduce process time by increasing cooling rate at a tip. A reflow soldering machine which solders a work piece by converting electricity to heat includes heat dissipation tubes(50a,50b) which are passing through the inner space of reflow soldering machine to dissipate heat, a driver(60) for circulating fluid in heat dissipation tubes, a power supply which delivers external power to the reflow soldering machine, a heat dissipation block(30) composed of a first block and a second block with slits to dissipate heat, a connecting bracket(37) at an edge of the heat dissipation block to transfer heat generated from power source, and a tip(38) connected to the connecting bracket to solder a work piece by applying heat to the work piece. The heat dissipation tubes are passing through the first block and the second block. A sensor(40) is installed to the reflow soldering machine to sense temperature at the tip and transmit the temperature signal to a controller to maintain constant temperature at the tip. A method of dissipating heat includes a step of soldering work piece by lowering the tip, a step of cooling the reflow soldering machine by circulating fluid in heat dissipation tubes, a step of raising the tip, and a step of stopping the driver.

Description

Heat fusing device and heat radiating method for the same}

1 is a perspective view showing the configuration of a preferred embodiment of a thermal fusion apparatus according to the present invention.

Figure 2 is a perspective view showing a state of fusion welding the workpiece using the heat welding machine according to the present invention.

Figure 3 is a perspective view showing the configuration of the connecting bracket and the welding tip constituting an embodiment of the present invention.

Figure 4 is a flow chart showing the sequence of a preferred embodiment of a heat dissipation method of the heat welding machine according to the present invention.

Explanation of symbols on the main parts of the drawings

15: support frame 20: power supply

30: heat dissipation block 37: connection bracket

38: welding tip 40: sensor

50: heat sink 60: drive source

The present invention relates to a heat fusion device and a heat dissipation method thereof, and more particularly, to a heat fusion device for bonding a workpiece by applying heat, and a method for cooling the heat fusion machine.

Heat fusion apparatus for bonding two or more different members by applying heat has been commercialized in various industries by applying in a variety of structures and configurations depending on the material and shape of the workpiece.

In general, the thermal fusion device generates heat by using power supplied from the outside, and the thermal fusion device is fused between different members. The heat fusion device is provided with a power supply for supplying power.

In addition, the heat dissipation device is provided with a heat dissipation block. Inside the heat dissipation block is a power transmission means, which serves to electrically connect between the power supply and the connection bracket to be described later. The power transmission means may be, for example, a wire.

The heat dissipation block wraps and protects the power transmission means, and serves to lower the temperature of the fusion tip to be described below more efficiently. This is to allow the welded workpiece to solidify more quickly by cooling the welded tip after fusion between the workpieces using the welding tip.

A connection bracket is provided at the tip of the heat dissipation block. The connecting bracket serves to transfer the current supplied from the power transmission means to the welding tip, and is made of a metal material having high electrical conductivity.

The connecting bracket is provided with a welding tip. The fusion tip serves to fusion between different workpieces by pressing the workpiece in a high temperature state.

However, the prior art as described above has the following problems.

When the welding tip is lowered and heat is applied while pressing two different workpieces, the workpieces are fused, and when the welding of the workpieces is completed, the welding tips are lifted up and separated from the workpieces. At this time, the welding tip should be raised after the work object is completely solidified, so that fusion is more certain and the separation from the work object is easy.

However, the temperature drop of the fusion tip is made only by the natural heat and the heat dissipation block, and because there is no separate heat dissipation device, the time taken for the temperature fall is long. Therefore, there is a problem in that the fusion operation time of the work object is long and the work efficiency is lowered.

Accordingly, an object of the present invention is to solve the problems as described above, to increase the cooling rate of the welding tip constituting the heat welding machine to shorten the time required for the welding operation of the workpiece.

According to a feature of the present invention for achieving the object as described above, the present invention is a heat fusion welder for fusion welding the workpiece by generating power and heat, and a heat dissipation tube installed to penetrate the inside of the heat fusion machine; It is configured to include a drive source connected to the heat dissipation tube for providing power to the fluid flow through the heat dissipation tube.

The heat welding machine and a power supply for supplying power received from the outside,

A heat dissipation slit connected to the power supply unit and configured to cool the generated heat; a heat dissipation block formed by combining first and second blocks symmetrical to each other; and a heat dissipation block mounted on a distal end of the heat dissipation block; It is configured to include a connection bracket for transferring the heat generated through, and a fusion tip connected to the connection bracket, fusion welding the workpiece by applying heat to the workpiece.

The heat dissipation tube penetrates inside the first and second blocks, respectively. That is, the heat dissipation pipe is inserted into one side of the first block, passes through the inside of the first block and the second block, respectively, and is discharged to the outside through one side of the second block.

A thermal welding apparatus is further equipped with a sensor, which is connected to the welding tip to transmit the temperature of the welding tip to the control means, the control means maintains the temperature of the welding tip constant.

The driving source is an air pump, which cools the thermal fusion apparatus by flowing air into the heat dissipation tube.

One end of the heat dissipation tube is bifurcated, and is connected to a first driving source for discharging the fluid and a second driving source for sucking the fluid, respectively.

According to another feature of the present invention, the present invention (a) the welding tip is lowered to weld the water to work, (b) the drive source is operated to flow the fluid through the heat dissipation tube penetrating the interior of the heat welding apparatus, Cooling the thermal fusion device; (c) the welding tip is lifted apart from the workpiece, and (d) the operation of the driving source is stopped.

And, step (b) is (b1) the first drive source connected to one end of the heat pipe is divided into two steps to discharge the fluid through the heat pipe, (b2) is connected to the other end of the heat pipe And operating a second drive source to suck the fluid through the heat dissipation tube.

Step (b1) and step (b2) are repeated. In particular, the step (b) and the step (c) further comprises the step of measuring the temperature of the fusion tip using a sensor, if the fusion tip falls below the reference value (c) proceeds.

According to the present invention having such a configuration, the heat fusion apparatus of the present invention is provided with a heat dissipation tube and a driving source connected thereto, and the cooling speed of the heat fusion apparatus is increased by the fluid flowing through the heat dissipation tube, so that the workability is improved. have.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the heat fusion apparatus and the heat dissipation method according to the present invention will be described in detail.

1 is a perspective view showing the configuration of a preferred embodiment of the heat welding apparatus according to the present invention, Figure 2 is shown in a perspective view of the welding object to the work using the heat welding machine according to the present invention, Figure 3 The configuration of the connecting bracket and the welding tip constituting the embodiment of the present invention is shown in a perspective view.

As shown in these figures, the appearance and skeleton of the heat welding apparatus 10 is formed by the support frame 15. The support frame 15 is formed in a substantially hexahedral shape and is made of a metal material to serve to support one side of the heat dissipation block 30 and the power supply unit 20 to be described below.

The power supply unit 20 is mounted to the support frame 15. The power supply unit 20 serves to supply power to a power transmission means (not shown) to be described below, and selectively operates by a control means to be described later to supply power.

The heat dissipation block 30 is mounted to the support frame 15. The heat dissipation block 30 is formed in a substantially hexahedral shape, and discharges the heat of the fusion tip 38 to be described below to the outside, and serves to protect the power transmission means.

The heat dissipation block 30 is connected to the power supply unit 20 and the connecting shaft 32 so as to be relatively movable. More precisely, the heat dissipation block 30 moves in a direction away from or close to the power supply unit 20 so that the welding tip 38 can selectively press the workpiece M. FIG.

As shown in FIG. 1, the heat dissipation block 30 is formed by combining two parts having a symmetrical shape, that is, the first block 33 and the second block 35 are coupled to each other. Inside the two blocks 33 and 35, first and second transfer means, which will be described later, are mounted so as not to be exposed to the outside. Of course, the two blocks 33 and 35 may be integrally formed.

Heat dissipation slits 33 ′ and 35 ′ are formed in the first and second blocks 33 and 35. The heat dissipation slit 33 ', 35' is formed in a plurality of side by side so as to be concave to the inside of the heat dissipation block 30, to increase the contact area between the heat dissipation block 30 and the external air in the heat dissipation block It is to more efficiently radiate to the outside.

The power transmission means is mounted inside the heat dissipation block 30. The power transmission means is to supply the power received from the power supply unit 20 to the connection bracket 37, it is made of a metal material with good electrical conductivity. Preferably, the power transmission means is, for example, wrapped by a non-conductor, such as a wire, it is not electrically connected to the heat dissipation block (30). This is to prevent the electric shock by the worker is exposed to the heat radiation block 30 to the outside.

In this case, the power transmission means is composed of first and second transmission means. The two power transmission means are mounted inside the first and second blocks 33 and 35, respectively, so that they are not exposed to the outside. In other words, the power transmission means is not visible in appearance. The two power transmission means are mounted long along the lengthwise direction of the two blocks 33 and 35 and are connected to the first and second brackets 37a and 37b, which will be described below, respectively.

Currents having different polarities flow from the power supply unit 20 in the first and second transfer means. For example, the '+' pole is connected to the first transmission means and the '-' pole is connected to the power supply 20, respectively. Then, these different polarities are energized by the welding tip 38.

Although not shown, flow paths are formed in the heat dissipation blocks 33 and 35. The flow path is a portion through which the fluid discharged and sucked through the heat dissipation pipe 50 to be described below passes through the interior of the heat dissipation blocks 33 and 35.

A connection bracket 37 is connected to the front end of the heat dissipation block 30. The connection bracket 37 serves to transfer the heat received from the two heat dissipation blocks 30 to the fusion tip 38 to be described later. As shown in FIG. 3, the connection bracket 37 is composed of two symmetrical first and second brackets 37a and 37b. The first and second brackets 37a and 37b are formed in a substantially '-' shape and are connected by a fusion tip 38 and a bolt (B).

The first and second transfer means are connected to the first and second brackets 37a and 37b, respectively, and the two brackets 37a and 37b are electrically connected to each other by a welding tip 38. That is, after the '+' current moved through the first transfer means moves in sequence along the first bracket 37a and the fusion tip 38, the second transfer through the second bracket 37b. It is connected to the power supply unit 20 again through the means.

Fusion tip 38 is coupled to the transfer bracket 37. The fusion tip 38 is made of metal and is formed in a substantially rectangular frame shape. The welding tip 38 has a kind of resistance function, and generates a high temperature to serve to weld the workpiece (M). To this end, a plurality of fusion projections 39 corresponding to the shape of the workpiece M are formed at the front end of the fusion tip 38.

The heat welder 10 is provided with a sensor 40. The sensor 40 measures the temperature of the fusion tip 38 and serves to provide this information to the control means described below. To this end, the sensor 40 is connected to the welding tip 38 by a connector 42 such as an electric wire.

In addition, the sensor 40 is connected to a control means (not shown). The control means maintains power supply when the temperature of the fusion tip 38 is lower than the reference value, and cuts off the power supply when the temperature is higher than the reference value. , So that the temperature of the fusion tip 38 can stay within a predetermined period. In addition, in the process of heat dissipating the heat welder 10 after the workpiece M is fused, the control means also serves to raise the heat dissipation block 30 when the temperature of the welding tip 38 falls below a reference value. Done.

The heat fusion machine 10 is provided with a heat dissipation tube (50). The heat dissipation tube 50 is installed on the heat dissipation blocks 33 and 35 to allow the heat fusion splicer 10 to be cooled more quickly. To this end, the fluid such as air or water flows inside the heat dissipation tube 50, thereby lowering the temperature of the heat fusion splicer 10.

As shown in FIG. 2, the heat dissipation pipe 50 is formed in a tubular shape made of an insulating material, and is installed to connect the flow paths of the heat dissipation blocks 33 and 35. That is, the heat dissipation pipe 50 is connected to both ends of the flow path of the first block 33 and to both ends of the flow path of the second blocks 33 and 35, whereby fluid is transferred by the heat dissipation pipe 50 and the flow path. The passageway that follows can be moved.

More precisely, the heat dissipation pipe 50 is composed of a first heat dissipation pipe 50a connected to the first block 33 and a second heat dissipation pipe 50b connected to the second block 35, The two blocks 33 and 35 are connected by a connecting pipe 50 '.

That is, the first heat dissipation tube 50a is connected to one end of the flow path opened on the upper surface of the first block 33, and when viewed in the center of the drawing, the first heat dissipation tube 50a is formed on the front surface of the first block 33. At the other end of the flow path, the connector 50 'is connected to the flow path of the second block 35 through the front surface of the second block 35 again. In addition, the first connecting pipe 50b is connected to the other end of the flow path formed on the upper surface of the second block 35. In other words, the two heat dissipation pipes 50a and 50b and the connection pipe 50 'are installed along the arrow direction shown in the drawing. Of course, such a movement path of the heat dissipation tube 50 may be reversed, or may be inserted or discharged through the bottom surface of the heat dissipation block 30.

At this time, one end of the heat dissipation pipe 50 is divided into two branches, consisting of the first connector 53 and the second connector (55). In this case, a first drive source 63 for discharging air, which will be described below, is connected to the first connector 53, and a second drive source 65 for sucking air is connected to the second connector 55. . This is to allow both the operation of discharging air and the operation of sucking air through the heat dissipation pipe 50.

As shown in FIG. 2, a driving source 60 is connected to one end of the heat dissipation tube 50. The drive source 60 is connected to the heat dissipation tube 50 and serves to provide power to the fluid flow inside the heat dissipation tube 50. In the present embodiment, the drive source 60 may be a drive source 60 that uses a liquid, such as an air pump or other hydraulic pump or hydraulic pump to allow air to flow inside the heat dissipation pipe 50. In addition, the other end of the heat dissipation tube 50 is opened and maintained in a state in which air can enter and exit.

In this case, preferably, the driving source 60 may perform an operation for discharging or sucking the fluid through the heat radiating tube 50. That is, the fluid can be flowed through the heat dissipation pipe 50 and the flow path, or vice versa to suck the fluid.

The drive source 60 is composed of a first drive source 63 and a second drive source (65). The first drive source 63 is connected to the first connector 53 and the second drive source 65 is connected to the second connector 55, the operation of the air discharge or suction through the heat pipe 50 All is possible. That is, the first drive source 63 discharges and the second drive source 65 sucks, so that air can flow more effectively inside the flow path and the heat dissipation pipe 50. will be. Of course, on the contrary, the first driving source 63 may suck air and at the same time, the second driving source 65 may discharge the air.

Although not shown, control means are connected to the two driving sources 63 and 65. The control means repeatedly operates the two drive sources 63 and 65 alternately, so that the air is discharged through the heat dissipation pipe 50 by the two drive sources 63 and 65 and the process of inhaling is repeated. . This is to make the temperature of the entire heat dissipation tube 50 evenly, so that the heat fusion splicer 10 is cooled more efficiently through the heat dissipation tube 50.

Hereinafter, the operation of the heat fusion apparatus and the heat dissipation method according to the present invention having the configuration as described above will be described in detail.

Figure 4 is a flow chart showing the sequence of a preferred embodiment of the heat dissipation method of the heat fusion apparatus according to the present invention. With reference to this first look at the process of fusion welding the workpiece (M) using the heat welding machine 10, first the workpiece (M) is positioned below the fusion tip (38). In this state, the heat dissipation block 30 on which the welding tip 38 is mounted approaches the workpiece M (step (a)).

At this time, the welding tip 38 is maintained at a high temperature. That is, when power is supplied from the power supply unit 20 and the fusion tip 38 reaches a temperature higher than a reference value, the fusion tip 38 is lowered. When the welding tip 38 presses the workpiece M, the workpiece M is fused, and the welding tip 38 is raised again (step (c)).

Of course, the welding tip 38 should rise after solidifying after the workpiece M is welded. Because, if the welding tip 38 continues to maintain a high temperature enough to fusion the workpiece (M), separating the workpiece (M) from the welding projection 39 of the welding tip 38 Because it is not easy.

Therefore, it is necessary to cool the fusion tip 38, which is made by the heat dissipation slit 33 ', 35' and the heat dissipation tube 50. Looking at the process of cooling the heat welder 10 by the heat dissipation tube 50, first the first drive source 63 is operated to inject air into the first connector (53). The injected air flows along the heat dissipation tube 50 passing through the heat dissipation block 30 and is discharged through the other end of the heat dissipation tube 50. At the same time, the second drive source 65 is operated to suck the injected air. Therefore, more effective heat dissipation can be achieved than to flow air using only the first driving source 63 (step (b1)).

Next, the first drive source 63 and the second drive source 65 are operated in reverse. That is, the first drive source 63 sucks air and at the same time the second drive source 65 discharges air. Accordingly, air is sucked through the other end of the heat dissipation tube 50 from which air is discharged, and flows through a path opposite to the path from which the air is discharged (step (b2)).

 In addition, the second drive source 65 is also stopped after a predetermined time passes, and the first drive source 63 is operated again. As the operation is repeatedly performed, the heat dissipation block 30 and the connection bracket 37 are cooled, and thus the fusion tip 38 connected thereto is also cooled. This operation is performed by the control means. When the two driving sources 63 and 65 are alternately operated, air is discharged and sucked, and thus the temperature drop is uniformly made in the two heat dissipation blocks 30.

At this time, the temperature of the fusion tip 38 is sensed by the sensor 40, the control means is the heat dissipation block 30 from the workpiece (M) when the fusion tip 38 falls below the reference value By moving in the direction away, the welding tip 38 and the workpiece (M) is separated (step (b3)). In this case, since the welding tip 38 is separated from the workpiece in the state in which the workpiece M is solidified, the separation between the welding protrusion 39 and the workpiece M becomes easy.

The rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and various changes and modifications can be made by those skilled in the art within the scope of the claims. It is self-evident.

For example, the operation order of the first and second drive sources 65 may be changed. That is, the second drive source 65 may be operated first, and then the first drive source 63 may be operated. In addition, the progress path of the heat dissipation tube 50 may also be variously implemented. That is, as in this embodiment, the heat pipe 50 may pass through the second block 35 after passing through the first block 33, but may pass through the second block 35 first. In addition, the two blocks 33 and 35 may penetrate two or more times, respectively.

In the thermal fusion apparatus and the heat dissipation method thereof according to the present invention as described in detail above, the following effects can be obtained.

In the present invention, a heat dissipation tube is provided with a heat dissipation tube as well as a heat dissipation slit, so that the time for cooling the welding tip can be shortened. Therefore, more work objects can be fused within the same time, thereby improving workability.

In addition, in the present invention, one end of the heat dissipation tube is divided into two parts and connected to separate driving sources, so that air flows alternately along opposite paths along the inside of the heat dissipation tube. Therefore, the temperature of the two heat dissipation blocks can be evenly lowered, and as a result, the workpiece can be more easily separated from the welding tip, thereby improving work reliability.

Claims (11)

A heat fusion splicer having a heat dissipation block for cooling the heat generated by applying a heat to a workpiece and fusion welding the workpiece, and a flow path formed therein and connected to one side of the welding tip; A heat dissipation tube installed in the heat fusion splicer to form a passage through which fluid for heat dissipating the heat dissipation block together with the flow path; And a drive source connected to the heat dissipation tube and supplying power to flow the fluid through the heat dissipation tube. The method of claim 1, wherein the heat welding machine And a power supply for supplying power received from the outside, A heat dissipation block connected to the power supply unit, a heat dissipation slit for cooling the generated heat, and a first and second blocks combined; Power transmission means installed in the first and second blocks, respectively, and electrically connected to the power supply unit; A connection bracket installed at the front end of the heat dissipation block and electrically connected to the power transmission means; And a welding tip electrically connected to the connection bracket and fused to the workpiece by applying heat to the workpiece. 3. The heat fusion apparatus according to claim 2, wherein the heat dissipation tube comprises a first heat dissipation tube connected to the flow path of the first block and a second heat dissipation tube connected to the flow path of the second block. The heat welding apparatus of claim 3, wherein the flow path between the first block and the second block is connected by a connection pipe. The welding device of claim 4, further comprising a sensor, wherein the sensor is connected to the welding tip to transmit a temperature of the welding tip to a control means, and the control means maintains the temperature of the welding tip constant. Thermal fusion apparatus characterized in that. 6. The heat welding apparatus according to claim 5, wherein the driving source is an air pump, which cools the heat welding apparatus by flowing air into the heat dissipation tube. 7. The heat fusion apparatus according to any one of claims 1 to 6, wherein one end of the heat dissipation tube is formed in two branches, and is connected to the first driving source and the second driving source, respectively. (a) the welding tip of the heat welder approaches and welds the workpiece, (b) operating a driving source to flow a fluid through a heat dissipation tube passing through the inside of the heat fusion machine to cool the heat fusion machine; (C) the heat dissipation method of the heat fusion apparatus, characterized in that comprising the step of separating the welding tip and the workpiece. The method of claim 8, wherein step (b) (b1) discharging the fluid through the heat dissipation tube by operating a first driving source connected to one end of the heat dissipation tube split into two branches; (b2) a heat dissipation method of a heat fusion apparatus characterized in that it comprises a step of operating a second drive source connected to the other end of the heat dissipation tube to suck the fluid through the heat dissipation tube. 10. The method of claim 9, wherein (b1) and (b2) are repeated. The method according to any one of claims 8 to 10, wherein the step (b) and (c) further comprises the step of measuring the temperature of the welding tip using a sensor (b3), the welding tip When the temperature falls below this reference value, the heat dissipating method of the heat welding apparatus, characterized in that step (c) proceeds.

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