Ventilation and heat dissipation device for reflow oven

Abstract

The utility model relates to the technical field of reflow furnace, concretely to a reflow furnace ventilation and heat dissipation device, including production workshop, the inside installation of production workshop has control panel, the inside installation of production workshop has motor, the input of motor and the output of control panel electric connection, the inside installation of production workshop has four reflow furnace body, the surface of reflow furnace body is provided with ventilation and heat dissipation mechanism, the inside of ventilation and heat dissipation mechanism includes the manifold, the flow guide pipe, the valve assembly, the exhaust pipe and the exhaust fan. The utility model has realized the balanced heat dissipation function of ventilation and heat dissipation device, has improved the heat dissipation effect when ventilation and heat dissipation device uses.

Description

Technical Field

[0001] This utility model relates to the field of reflow oven technology, specifically to a reflow oven ventilation and heat dissipation device. Background Technology

[0002] The reflow oven process is a process of remelting pre-applied solder paste onto the pads of a printed circuit board to achieve mechanical and electrical connections between the solder ends or leads of surface mount components and the pads of the printed circuit board. When using a reflow oven, it is necessary to dissipate heat through a ventilation and heat dissipation device.

[0003] A workshop typically contains multiple reflow ovens. Traditional ventilation and heat dissipation devices, when used to dissipate heat from each reflow oven, suffer from uneven exhaust volumes due to the different locations of the ovens, thus affecting the heat dissipation effect of the ventilation and heat dissipation devices. Utility Model Content

[0004] The purpose of this invention is to provide a ventilation and heat dissipation device for a reflow oven, so as to solve the problem of unbalanced exhaust volume and poor heat dissipation effect of each reflow oven when using the ventilation and heat dissipation device mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a reflow oven ventilation and heat dissipation device, comprising a production workshop, a control panel installed inside the production workshop, a motor installed inside the production workshop, the input end of the motor being electrically connected to the output end of the control panel, four reflow oven bodies installed inside the production workshop, and a ventilation and heat dissipation mechanism provided on the surface of the reflow oven bodies, the ventilation and heat dissipation mechanism including a manifold, a guide pipe, a valve assembly, an exhaust pipe, and an exhaust fan.

[0006] Preferably, a manifold is fixed to the top of the production workshop by a bracket, and an exhaust fan is installed at one end of the manifold. The input end of the exhaust fan is electrically connected to the output end of the control panel, and the speed of the exhaust fan is controlled by a motor.

[0007] Preferably, four guide pipes are fixed at the bottom of the manifold, and one end of the guide pipes passes through the production workshop and extends into the interior of the production workshop.

[0008] Preferably, an exhaust pipe is installed on the surface of the reflux furnace body, and the exhaust pipe is connected to the guide pipe.

[0009] Preferably, the surface of the exhaust pipe is equipped with a valve assembly for adjusting the exhaust volume, the valve assembly consisting of a first manual air valve, a second manual air valve, a third manual air valve and a fourth manual air valve.

[0010] Preferably, a first manual air valve is installed on the surface of the exhaust pipe, and the first manual air valve is close to the exhaust fan.

[0011] Preferably, a second manual air valve is provided on one side of the first manual air valve, and the second manual air valve is installed on the surface of the exhaust pipe.

[0012] Preferably, a fourth manual air valve is installed on the surface of the reflux furnace body, and a third manual air valve is provided between the fourth manual air valve and the second manual air valve, and the third manual air valve is installed on the surface of the exhaust pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This reflow oven ventilation and heat dissipation device is equipped with a ventilation and heat dissipation mechanism. The first manual air valve is opened to 30%, the second manual air valve to 50%, the third manual air valve to 70%, and the fourth manual air valve to 100%. Then, the control panel controls the operation of the motor and the exhaust fan, and the motor controls the speed of the exhaust fan to draw air. The hot air inside the reflow oven body is guided through the exhaust pipe to the guide pipe and then to the manifold, and then discharged through the manifold. Because the air outlet of the exhaust pipe on the surface of the first manual air valve is closer to the outlet of the guide pipe than the others, in order to ensure that the heat dissipation is even, the opening size of each valve component is different. This prevents the heat from the reflow oven body below the first manual air valve from being discharged too quickly, which would force the heat in other guide pipes to retreat, thereby achieving the balanced heat dissipation function of the ventilation and heat dissipation device and improving the heat dissipation effect of the ventilation and heat dissipation device during use. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0016] Figure 3 This is an enlarged structural schematic diagram of the valve assembly of this utility model;

[0017] Figure 4 This is an enlarged cross-sectional view of the guide tube of this utility model;

[0018] Figure 5 This is an enlarged side view sectional diagram of the valve assembly of this utility model;

[0019] Figure 6 This is a magnified schematic diagram of the exhaust fan of this utility model.

[0020] In the diagram: 1. Production workshop; 11. Reflow furnace body; 12. Control panel; 13. Motor; 2. Ventilation and heat dissipation mechanism; 21. Manifold; 22. Guide pipe; 23. Valve assembly; 231. First manual air valve; 232. Second manual air valve; 233. Third manual air valve; 234. Fourth manual air valve; 24. Exhaust pipe; 25. Exhaust fan. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0022] The structure of the reflux furnace ventilation and heat dissipation device provided by this utility model is as follows: Figure 1 and Figure 2 As shown, the facility includes a production workshop 1. Inside the production workshop 1, there is a control panel 12. The control panel 12 is embedded with a lithium battery and a processor. The processor includes an amplifier tube, a protection resistor Rm, a filter, an A / D converter, and a microcontroller. The sensor and the protection resistor Rm are connected in parallel with the amplifier tube and then in series with the filter. The signal is converted by the A / D converter and sent to the microcontroller. The display screen receives the processing signals sent by the microcontroller. Inside the production workshop 1, there is a motor 13. The model of the motor 13 can be selected from the JO series. The input terminal of the motor 13 is electrically connected to the output terminal of the control panel 12. Inside the production workshop 1, there are four reflow ovens 11.

[0023] Furthermore, such as Figure 3 , Figure 4 and Figure 6As shown, a ventilation and heat dissipation mechanism 2 is provided on the surface of the reflow furnace body 11. The ventilation and heat dissipation mechanism 2 includes a manifold 21, a guide pipe 22, a valve assembly 23, an exhaust pipe 24, and an exhaust fan 25. The manifold 21 is fixed at the top of the production workshop 1 by a bracket. An exhaust fan 25 is installed at one end of the manifold 21. The exhaust fan 25 can be a Y series model. The input end of the exhaust fan 25 is electrically connected to the output end of the control panel 12. The speed of the exhaust fan 25 is controlled by a motor 13. Four guide pipes 22 are fixed at the bottom of the manifold 21. One end of the guide pipe 22 passes through the production workshop 1 and extends into the interior of the production workshop 1. An exhaust pipe 24 is installed on the surface of the reflow furnace body 11. The exhaust pipe 24 is connected to the guide pipe 22.

[0024] Furthermore, such as Figure 3 and Figure 5 As shown, a valve assembly 23 for adjusting the exhaust volume is installed on the surface of the exhaust pipe 24. The valve assembly 23 consists of a first manual air valve 231, a second manual air valve 232, a third manual air valve 233, and a fourth manual air valve 234. The first manual air valve 231 is installed on the surface of the exhaust pipe 24 and is close to the exhaust fan 25. The second manual air valve 232 is provided on one side of the first manual air valve 231 and is installed on the surface of the exhaust pipe 24. The fourth manual air valve 234 is installed on the surface of the reflux furnace body 11. The third manual air valve 233 is provided between the fourth manual air valve 234 and the second manual air valve 232 and is installed on the surface of the exhaust pipe 24.

[0025] In use, the first manual air valve 231 is opened to 30%, the second manual air valve 232 to 50%, the third manual air valve 233 to 70%, and the fourth manual air valve 234 to 100%. Then, the motor 13 and the exhaust fan 25 are controlled by the control panel 12, and the speed of the exhaust fan 25 is controlled by the motor 13, so that the exhaust fan 25 can draw air, so that the hot air inside the recirculating furnace body 11 is guided through the exhaust pipe 24 to the inside of the guide pipe 22, and then to the inside of the manifold 21, and discharged through the manifold 21. Because the air outlet of the exhaust pipe 24 on the surface of the first manual air valve 231 is close to the outlet of the guide pipe 22, while the others are far away, in order to ensure that the heat dissipation is balanced, the opening size of each valve assembly 23 is different. This prevents the heat from the recirculating furnace body 11 below the first manual air valve 231 from being discharged too quickly, which would force the heat in the other guide pipes 22 to retreat, so as to achieve the balanced heat dissipation function of the ventilation and heat dissipation device.

[0026] Working principle: In use, first open the first manual air valve 231 to 30%, the second manual air valve 232 to 50%, the third manual air valve 233 to 70%, and the fourth manual air valve 234 to 100%. Then, control the motor 13 and the exhaust fan 25 through the control panel 12, and control the speed of the exhaust fan 25 through the motor 13, so that the exhaust fan 25 can draw air, so that the hot air returning to the furnace body 11 is guided through the exhaust pipe 24 to the guide pipe 22, and then to the manifold 21, and then through the manifold... 21 is discharged because the air outlet of the exhaust pipe 24 on the surface of the first manual air valve 231 is close to the outlet of the guide pipe 22, while the others are far away. In order to make the heat discharge even, the opening size of each valve assembly 23 is different. This prevents the heat from the return furnace body 11 below the first manual air valve 231 from being discharged too quickly, which would force the heat of other guide pipes 22 to retreat, so as to achieve the balanced heat dissipation function of the ventilation and heat dissipation device, thereby improving the heat dissipation effect when the ventilation and heat dissipation device is used, and finally completing the use of the ventilation and heat dissipation device.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A ventilation and heat dissipation device for a reflux furnace, comprising a production workshop (1), characterized in that: The production workshop (1) is equipped with a control panel (12) and a motor (13). The input end of the motor (13) is electrically connected to the output end of the control panel (12). The production workshop (1) is equipped with four reflux furnace bodies (11). The surface of the reflux furnace body (11) is provided with a ventilation and heat dissipation mechanism (2). The ventilation and heat dissipation mechanism (2) includes a manifold (21), a guide pipe (22), a valve assembly (23), an exhaust pipe (24), and an exhaust fan (25).

2. The reflux furnace ventilation and heat dissipation device according to claim 1, characterized in that: A manifold (21) is fixed at the top of the production workshop (1) by a bracket. An exhaust fan (25) is installed at one end of the manifold (21). The input end of the exhaust fan (25) is electrically connected to the output end of the control panel (12). The speed of the exhaust fan (25) is controlled by a motor (13).

3. The reflux furnace ventilation and heat dissipation device according to claim 2, characterized in that: The bottom of the manifold (21) is fixed with four guide pipes (22), one end of which passes through the production workshop (1) and extends into the interior of the production workshop (1).

4. The reflux furnace ventilation and heat dissipation device according to claim 3, characterized in that: The surface of the reflux furnace body (11) is equipped with an exhaust pipe (24), which is connected to the guide pipe (22).

5. A reflux furnace ventilation and heat dissipation device according to claim 4, characterized in that: The surface of the exhaust pipe (24) is equipped with a valve assembly (23) for adjusting the exhaust volume. The valve assembly (23) consists of a first manual air valve (231), a second manual air valve (232), a third manual air valve (233), and a fourth manual air valve (234).

6. A reflux furnace ventilation and heat dissipation device according to claim 5, characterized in that: The surface of the exhaust pipe (24) is equipped with a first manual air valve (231), which is close to the exhaust fan (25).

7. A reflux furnace ventilation and heat dissipation device according to claim 6, characterized in that: A second manual air valve (232) is provided on one side of the first manual air valve (231), and the second manual air valve (232) is installed on the surface of the exhaust pipe (24).

8. A reflux furnace ventilation and heat dissipation device according to claim 7, characterized in that: A fourth manual air valve (234) is installed on the surface of the reflux furnace body (11), and a third manual air valve (233) is provided between the fourth manual air valve (234) and the second manual air valve (232). The third manual air valve (233) is installed on the surface of the exhaust pipe (24).

Images