Reflow soldering machine with protection structure

Abstract

The utility model relates to the technical field of integrated circuit packaging, and discloses a reflow soldering machine with a protection structure, which comprises a reflow soldering machine body, the top of the reflow soldering machine body is fixedly provided with a furnace cover, a water pipe is arranged to be wavy, so that the contact between the water pipe and the top of the reflow soldering machine body can be increased, and the heat absorption efficiency of the water pipe is improved; the water pump is started to drive cooling liquid to flow in the water pipe, heat absorbed by the water pipe can be rapidly taken away, it is guaranteed that the water pipe can continuously absorb heat of the reflow soldering machine body and prevent the heat from being transmitted to the position above the furnace cover, and dust can be intercepted through the dustproof net and prevented from entering the furnace cover to affect heat dissipation; the motor is started to drive the cleaning rod connected with the rotating shaft to rotate, so that the dust screen is conveniently cleaned, the situation that blockage affects air circulation, and consequently the heat dissipation effect is affected is avoided, the rotating shaft rotates to drive the fan blades to rotate, air circulation is conveniently accelerated, and the heat dissipation effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of integrated circuit packaging, in particular to a reflow soldering machine with a protective structure. Background Art

[0002] Reflow soldering machine, also known as reflow soldering machine, is a soldering technology developed with the emergence of miniaturized electronic products. It is mainly used for the soldering of various surface mounted components. The solder of this soldering technology is solder paste. Apply an appropriate amount and form of solder paste on the pads of the circuit board in advance, and then put the SMT components in the corresponding positions. The solder paste has a certain viscosity to fix the components. Then let the circuit board with the components mounted enter the reflow soldering equipment. The conveying system drives the circuit board through the set temperature zones in the equipment. The solder paste is dried, preheated, melted, moistened, and cooled to solder the components to the printed circuit board. The core link of reflow soldering is to use an external heat source to heat the solder to melt it and flow and infiltrate it again to complete the soldering process of the circuit board.

[0003] After searching, the Chinese patent with publication number: CN213672331 U discloses a reflow soldering machine for integrated circuit packaging with a protective structure, including a main body, an operating wall fixedly installed on the right end of the main body, a data display screen fixedly installed on the upper end of the right end of the main body, a number display button fixedly installed below the data display screen, the number display buttons are equidistantly arranged on the right end of the main body, a control knob fixedly installed on the left side below the number display button, a main switch fixedly installed on the right side below the number display button, a processor fixedly installed in the middle of the upper end of the main body, a cylinder fixedly installed in the middle of the upper end of the processor, and the cylinder is located above the middle of the main body. The reflow soldering machine for integrated circuit packaging with a protective structure is different from ordinary reflow soldering machines, has richer functions, can effectively perform bidirectional heating through an external heat source, has a higher rate, and the device itself has high adjustability.

[0004] but:

[0005] The reflow process provides a heating environment to melt the solder paste so that the surface mount components and PCB pads can be reliably combined through the solder paste alloy. The reflow machine needs to be heated during the production process to keep the furnace at a high temperature. Although general reflow machines are equipped with heat insulation materials inside and outside the furnace, it is still impossible to avoid the heat in the furnace from being transferred to the furnace cover, causing the furnace cover to be too high, especially in the reflow area, which can easily cause burns to workers. Utility Model Content

[0006] 1. Technical issues to be solved

[0007] In view of the deficiencies in the prior art, the utility model provides a reflow soldering machine with a protective structure.

[0008] (II) Technical solution

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reflow soldering machine with a protective structure, comprising a reflow soldering machine body, a furnace cover fixedly installed on the top of the reflow soldering machine body, water tanks respectively arranged on both sides of the reflow soldering machine body, two water pipes for circulating coolant are respectively fixedly connected between the two groups of water tanks, and one water pipe is arranged on the back of the reflow soldering machine body, and the other water pipe runs through both sides of the furnace cover and contacts with the top of the reflow soldering machine body, the water pipe above the reflow soldering machine body is arranged in a wavy shape, a condenser is fixedly installed between the water pipes on the back of the reflow soldering machine body, and a water pump for driving the circulation of coolant is fixedly installed on the inner wall of the water tank, and the contact between the water pipe and the top of the reflow soldering machine body can be increased by arranging the water pipe in a wavy shape, so as to improve the heat absorption efficiency of the water pipe, and the heat absorbed by the water pipe can be quickly taken away by starting the water pump to drive the coolant to flow in the water pipe, so as to ensure that the water pipe can continuously absorb the heat of the reflow soldering machine body and avoid transmitting it to the top of the furnace cover.

[0010] Preferably, water thermometers are fixedly installed on the front sides of the two groups of water tanks, respectively, to facilitate observation of the cooling temperature inside the water tanks.

[0011] Preferably, an exhaust air outlet is provided on the back side of the furnace cover, a row of air inlet pipes is fixedly connected to the back side of the furnace cover, a row of the air inlet pipes and an exhaust air outlet are staggered, and a dustproof net is fixedly connected to one end of the inner wall of the air inlet pipe. The dustproof net can intercept dust and prevent it from entering the furnace cover and affecting heat dissipation.

[0012] Preferably, the inner wall of the air inlet duct is fixedly connected to a motor via a support rod, the output end of the motor is fixedly connected to a rotating shaft via a coupling, and the rotating shaft passes through the dustproof net and extends to the outside of the air inlet duct, and one end of the rotating shaft outside the air inlet duct is fixedly connected to a cleaning rod, and the cleaning rod connected to the rotating shaft is driven to rotate by starting the motor to facilitate cleaning of the dustproof net to avoid blockage that affects air circulation and thus affects the heat dissipation effect.

[0013] Preferably, a brush is fixedly connected to one side of the cleaning rod close to the dustproof net, and the brush is in contact with the surface of the dustproof net.

[0014] Preferably, the outer wall of the rotating shaft is fixedly sleeved with fan blades at a position inside the air inlet pipe, and the fan blades are driven to rotate by the rotation of the rotating shaft to facilitate and accelerate air circulation and improve the heat dissipation effect.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a reflow soldering machine with a protective structure, which has the following beneficial effects:

[0017] 1. A reflow soldering machine with a protective structure can increase the contact between the water pipe and the top of the reflow soldering machine body by setting the water pipe into a wave shape to improve the heat absorption efficiency of the water pipe. By starting the water pump to drive the coolant to flow in the water pipe, the heat absorbed by the water pipe can be quickly taken away to ensure that the water pipe can continuously absorb the heat of the reflow soldering machine body to avoid transferring it to the top of the furnace cover.

[0018] 2. This reflow soldering machine with a protective structure can intercept dust by setting a dustproof net to prevent dust from entering the furnace cover and affecting heat dissipation. The cleaning rod connected to the rotating shaft is driven to rotate by starting the motor to facilitate the cleaning of the dustproof net to avoid blockage and affect air circulation, thereby affecting the heat dissipation effect. The fan blades are driven to rotate while the rotating shaft rotates to facilitate the acceleration of air circulation and improve the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is the front view of the utility model;

[0021] Figure 2 It is a back view of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the furnace cover of the utility model;

[0023] Figure 4 It is a partial cross-sectional view of the air inlet pipe of the utility model.

[0024] In the figure: 1. Reflow soldering machine body; 2. Furnace cover; 21. Air outlet; 22. Air inlet pipe; 220. Dust screen; 221. Support rod; 222. Motor; 223. Rotating shaft; 224. Cleaning rod; 225. Fan blade; 3. Water tank; 31. Water thermometer; 32. Water pipe; 33. Condenser. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Example 1

[0027] like Figure 1-4As shown, the utility model provides a reflow soldering machine with a protective structure, including a reflow soldering machine body 1, a furnace cover 2 is fixedly installed on the top of the reflow soldering machine body 1, water tanks 3 are respectively arranged on both sides of the reflow soldering machine body 1, and two water pipes 32 for circulating coolant are respectively fixedly connected between the two groups of water tanks 3, and one water pipe 32 is arranged on the back of the reflow soldering machine body 1, and the other water pipe 32 runs through both sides of the furnace cover 2 and contacts with the top of the reflow soldering machine body 1, and the water pipe 32 above the reflow soldering machine body 1 is arranged in a wave shape, and the water pipes 32 on the back of the reflow soldering machine body 1 are arranged between the water pipes 32 A condenser 33 is fixedly installed at the position, and a water pump for driving the circulation of the coolant is fixedly installed on the inner wall of the water tank 3. By setting the water pipe 32 to be wavy, the contact between the water pipe 32 and the top of the reflow soldering machine body 1 can be increased to improve the heat absorption efficiency of the water pipe 32. By starting the water pump to drive the coolant to flow in the water pipe 32, the heat absorbed by the water pipe 32 can be quickly taken away to ensure that the water pipe 32 can continuously absorb the heat of the reflow soldering machine body 1 to avoid transferring it to the top of the furnace cover 2. Water thermometers 31 are fixedly installed on the front of the two groups of water tanks 3, respectively, to facilitate observation of the cooling temperature inside the water tank 3.

[0028] In this embodiment, by setting the water pipe 32 to be wavy, the contact between the water pipe 32 and the top of the reflow soldering machine body 1 can be increased to improve the heat absorption efficiency of the water pipe 32. By starting the water pump to drive the coolant to flow in the water pipe 32, the heat absorbed by the water pipe 32 can be quickly taken away to ensure that the water pipe 32 can continue to absorb the heat of the reflow soldering machine body 1 and avoid transferring it to the top of the furnace cover 2.

[0029] Example 2

[0030] like Figure 1-4As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, an exhaust air outlet 21 is provided on the back of the furnace cover 2, and a row of air inlet pipes 22 are fixedly connected to the back of the furnace cover 2, and a row of air inlet pipes 22 are staggered with an exhaust air outlet 21, and a dustproof net 220 is fixedly connected to one end of the inner wall of the air inlet pipe 22. By setting the dustproof net 220, dust can be intercepted to prevent it from entering the furnace cover 2 and affecting heat dissipation. The inner wall of the air inlet pipe 22 is fixedly connected to a motor 222 through a support rod 221, and the output end of the motor 222 is fixedly connected to a rotating shaft 223 through a coupling, and the rotating shaft 223 passes through the dustproof net 220 and extends to the air inlet On the outside of the tube 22, one end of the rotating shaft 223 outside the air inlet pipe 22 is fixedly connected to a cleaning rod 224. The cleaning rod 224 connected to the rotating shaft 223 is driven to rotate by starting the motor 222 to facilitate the cleaning of the dustproof net 220 to avoid blockage that affects air circulation and thus affects the heat dissipation effect. The cleaning rod 224 is fixedly connected to the side of the dustproof net 220 close to the dustproof net 220, and the brush is in contact with the surface of the dustproof net 220. The outer wall of the rotating shaft 223 is located inside the air inlet pipe 22 and is fixedly sleeved with fan blades 225. The rotation of the rotating shaft 223 drives the fan blades 225 to rotate at the same time to facilitate the acceleration of air circulation and improve the heat dissipation effect.

[0031] In this embodiment, a dustproof net 220 is provided to intercept dust and prevent it from entering the furnace cover 2 and affecting heat dissipation. The cleaning rod 224 connected to the rotating shaft 223 is driven to rotate by starting the motor 222 to facilitate cleaning of the dustproof net 220 to prevent blockage that affects air circulation and thus affects the heat dissipation effect. The rotating shaft 223 rotates while driving the fan blades 225 to rotate to facilitate accelerating air circulation and improving the heat dissipation effect.

[0032] The following is a detailed description of the working principle of the reflow soldering machine with a protective structure.

[0033] like Figure 1-4 As shown, when in use, by setting the water pipe 32 into a wave shape, the contact between the water pipe 32 and the top of the reflow soldering machine body 1 can be increased to improve the heat absorption efficiency of the water pipe 32. By starting the water pump to drive the coolant to flow in the water pipe 32, the heat absorbed by the water pipe 32 can be quickly taken away to ensure that the water pipe 32 can continue to absorb the heat of the reflow soldering machine body 1 to avoid transferring it to the top of the furnace cover 2. By setting the dustproof net 220, dust can be intercepted to avoid entering the furnace cover 2 and affecting heat dissipation. By starting the motor 222, the cleaning rod 224 connected to the rotating shaft 223 is driven to rotate to facilitate the cleaning of the dustproof net 220 to avoid blockage that affects air circulation and thus affects the heat dissipation effect. The rotating shaft 223 rotates while driving the fan blades 225 to rotate to facilitate accelerating air circulation and improve the heat dissipation effect.

Claims

1. A reflow soldering machine with a protective structure, comprising a reflow soldering machine body (1), characterized in that: A furnace cover (2) is fixedly installed on the top of the reflow soldering machine body (1), and water tanks (3) are respectively arranged on both sides of the reflow soldering machine body (1). Two water pipes (32) for circulating coolant are respectively fixedly connected between the two groups of water tanks (3), and one water pipe (32) is arranged on the back of the reflow soldering machine body (1), and the other water pipe (32) runs through both sides of the furnace cover (2) and contacts with the top of the reflow soldering machine body (1). The water pipe (32) above the reflow soldering machine body (1) is arranged in a wave shape, and a condenser (33) is fixedly installed between the water pipes (32) on the back of the reflow soldering machine body (1), and a water pump for driving the circulation of coolant is fixedly installed on the inner wall of the water tank (3).

2. The reflow soldering machine with a protective structure according to claim 1, characterized in that: Water body thermometers (31) are fixedly mounted on the front sides of the two groups of water tanks (3).

3. The reflow soldering machine with a protective structure according to claim 1, characterized in that: An air outlet (21) is provided on the back of the furnace cover (2), a row of air inlet pipes (22) is fixedly connected to the back of the furnace cover (2), a row of air inlet pipes (22) and an air outlet (21) are arranged alternately, and a dustproof net (220) is fixedly connected to one end of the inner wall of the air inlet pipe (22).

4. The reflow soldering machine with a protective structure according to claim 3, characterized in that: The inner wall of the air inlet pipe (22) is fixedly connected to a motor (222) via a support rod (221); the output end of the motor (222) is fixedly connected to a rotating shaft (223) via a coupling; the rotating shaft (223) passes through the dustproof net (220) and extends to the outside of the air inlet pipe (22); one end of the rotating shaft (223) outside the air inlet pipe (22) is fixedly connected to a cleaning rod (224).

5. The reflow soldering machine with a protective structure according to claim 4, characterized in that: A brush is fixedly connected to one side of the cleaning rod (224) close to the dustproof net (220), and the brush is in contact with the surface of the dustproof net (220).

6. The reflow soldering machine with a protective structure according to claim 4, characterized in that: The outer wall of the rotating shaft (223) is fixedly sleeved with a fan blade (225) at a position inside the air inlet pipe (22).

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